Skocz do pozycji: 1.

Tytuł:

A Morphogenetic Description of Thigmokeronopsis stoecki Shao et al., 2008 (Ciliophora, Hypotricha) and a Comparison with Members of the Family Pseudokeronopsidae

Autorzy:

Chen, Xumiao
Li, Jiqiu
Hu, Xiaozhong
Shao, Chen
Al-Farraj, Saleh A.
Al-Rasheid, Khaled A. S.

Powiązania:

https://bibliotekanauki.pl/articles/763473.pdf

Data publikacji:

2013

Wydawca:

Uniwersytet Jagielloński. Wydawnictwo Uniwersytetu Jagiellońskiego

Tematy:

Hypotrichs, ontogenesis, Pseudokeronopsidae, Thigmokeronopsis

Opis:

The urostylid family Pseudokeronopsidae Borror and Wicklow, 1983 was considered to be a well-outlined taxon. Nevertheless, recent evidence, including morphological, ontogenetic, and molecular information, has consistently revealed the polyphyly of this family. In the present work, a new population of Thigmokeronopsis stoecki Shao et al., 2008 was found and its binary divisional process was described for the first time. In addition, the morphogenetic features of Thigmokeronopsis species and all the other pseudokeronopsids, for which detailed ontogenetic data are available, were rechecked and compared. This reveals that: (1) the ontogenetic process of T. stoecki corresponds well with its congeners T. jahodai and T. rubra except for the macronuclear behavior; (2) Apokeronopsis and Thigmokeronopsis share a similar ontogenetic mode despite of the differences in the number and origin of their buccal cirri; (3) most pseudokeronopsids share the same pattern in the origins of their oral primordia and fronto-ventral-transverse cirral anlagen, except for Pseudokeronopsis similis, which may not be a valid member of the family Pseudokeronopsidae.

Źródło:

Acta Protozoologica; 2013, 52, 2
1689-0027

Pojawia się w:

Acta Protozoologica

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

Zmień widok

• na półce

Skocz do pozycji: 2.

Tytuł:

Zmiany tempa rozwoju w ontogenezie człowieka i metody jego badania
Changes in the growth rate during ontogenesis and methods of its investigation

Autorzy:

Siniarska, Anna
Wolański, Napoleon

Powiązania:

https://bibliotekanauki.pl/articles/1817717.pdf

Data publikacji:

2005-12-31

Wydawca:

Uniwersytet Kardynała Stefana Wyszyńskiego w Warszawie

Tematy:

antropologia
ortogeneza
człowiek
anthropology
ontogenesis
human

Opis:

The problem of acceleration of growing processes during childhood and adolescence has been considered for a long time. The observations on this subject date back to the 19th century, however the attempts to summarize this phenomenon were dated to the 20th century. At the beginning of the 20th century Stratz, distinguishing the period of early and late childhood, had mentioned about three periods of deceleration and two periods of acceleration of growing processes. In 1930 also Boas identified the pubertal spurt. Ones of the first longitudinal studies had been organized in Krakow by Talko-Hryncewicz and continued in 1919-32. The results had been elaborated by Jasicki in 1934-48 and he revealed that there are two periods of acceleration of growing processes.In Poland this acceleration in growth had been called “the maximal height velocity.” The growth spurt at the end of childhood (around 7 years) has been pointed out by many authors in the 1930s, and in 1947 Tanner called it the mid-growth spurt. In 1961 Wolański pointed out that there are several growth spurts in childhood and called them pre (school) spurts. Consequently, in 1962 he had distinguished pubertal spurts for many somatic characteristics, and in 1964 – at least two pubertal spurts in height. Wolański had been analyzing the age at pubertal spurt followed by the age at menarche in rural and urban girls and concluded that these events are further apart if the pubertal spurt occurs later. The further analysis of these phenomena had been postponed because of the unfortunate statistical methods which presented data as mathematically smoothed growth curves and many details of individual growth patterns have been eliminated.Only two last decades the daily and monthly studies of growth processes have returned to favor, and the relationship between the rate and age at prepubertal and pubertal spurts has been studied again. In about 1980 the growth spurt at the turn of childhood and juvenile periods was again under study, but only during the last decade several growth spurts have been manifested. The number of prepubertal growth spurts has a very important impact on age and velocity of the pubertal spurt. If the number of prepubertal spurs is grater, the pubertal spurt occurs later and is less manifested. There are still many controversies according to the age of pubertal spurt and final body height. It may be similar to the relationship between menarche and final body height. It is observed that between populations there is a negative correlation between age at menarche and adult height, whereas between women within the population this correlation is positive (Wolański 1979).

Źródło:

Studia Ecologiae et Bioethicae; 2005, 3, 1; 43-81
1733-1218

Pojawia się w:

Studia Ecologiae et Bioethicae

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

Zmień widok

• na półce

Skocz do pozycji: 3.

Tytuł:

Życie człowieka w semiotyce koloru na przykładzie języka polskiego i rosyjskiego (część II)
Human life in colour semiotics exemplified by Polish and Russian language (Part II)

Autorzy:

Narloch, Andrzej

Powiązania:

https://bibliotekanauki.pl/articles/482161.pdf

Data publikacji:

2019-09-30

Wydawca:

Uniwersytet Warmińsko-Mazurski w Olsztynie

Tematy:

colour
time
metaphor
human ontogenesis
phraseologism

Opis:

In the contemporary linguistic research, the colour system occupies a special position. Today’s culture space is supersaturated with colours, which are important semiotic components of human functioning and their relationships with other people. This paper attempts to describe colour semiotics from the point of view of the human development period. The author tries to determine whether colours can also determine the age frame of a person. First, the relationship between colours and time is analysed. The suggested description of the stages of life through the colour spectrum allows answering the question of how the respective stages of human life are determined by the colours assigned to them by the culture.

Źródło:

Acta Polono-Ruthenica; 2019, 3, XXIV; 35-44
1427-549X

Pojawia się w:

Acta Polono-Ruthenica

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

Zmień widok

• na półce

Skocz do pozycji: 4.

Tytuł:

Życie człowieka w semiotyce koloru na przykładzie języka polskiego i rosyjskiego (część I)
Human life in colour semiotics exemplified by Polish and Russian language (Part I)

Autorzy:

Narloch, Andrzej

Powiązania:

https://bibliotekanauki.pl/articles/482402.pdf

Data publikacji:

2018-09-30

Wydawca:

Uniwersytet Warmińsko-Mazurski w Olsztynie

Tematy:

colour
time
metaphor
human ontogenesis
phraseologism

Opis:

In the contemporary linguistic research, the colour system occupies a special position. Today’s culture space is supersaturated with colours, which are important semiotic components of human functioning and their relationships with other people. This paper attempts to describe colour semiotics from the point of view of the human’s development period. The author tries to find an answer to the question whether colours can also determine the age frame of a person. First, the relationship between colours and time is analysed. The suggested description of the stages of life through the colour spectrum shall allow answering the question how the respective stages of human life are determined by the colours assigned to them by the culture.

Źródło:

Acta Polono-Ruthenica; 2018, 3, XXIII; 89-98
1427-549X

Pojawia się w:

Acta Polono-Ruthenica

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

Zmień widok

• na półce

Skocz do pozycji: 5.

Tytuł:

An Analysis of Sports Career Development in the 400-metre Dash

Autorzy:

Pietrzak, Michał
Iskra, Janusz
Dziadek, Bartosz
Gwiazdoń, Paweł

Powiązania:

https://bibliotekanauki.pl/articles/2159494.pdf

Data publikacji:

2021-12-31

Wydawca:

Politechnika Opolska. Wydział Wychowania Fizycznego i Fizjoterapii

Tematy:

400m
ontogenesis
sports career development

Opis:

One of the indicators of an optimally conducted training process is the athlete's achievement of sports success in all age categories. The analysis of sports career development is helpful in determining the periods of maximizing and maintaining sports results, but also in choosing the development path leading to the achievement of top-level results at the senior age. The aim of the study was to assess the development of sports championship in the 400-metre dash, comprising sports careers of 400 m medalists of the World Cadet and Junior Championships and European Junior Championships in the most important sports events in the senior age category, namely the European Championships, World Athletics Indoor Championships, World Championships, and the Olympic Games. The analysis involved a group of 69 male and 69 female medalists of the European Junior Championships, 27 male and 27 female medalists of the World Youth Junior Championships as well as a group of 48 male and 48 female medalists of the World Junior Championships in the 400 m. The research revealed that from 4% to 7% of the World Cadet Championships medalists and 1-3% of the male and 4-6% of the female medalists of the European Junior Championships achieved their highest sports success by winning medals at the World Championships and the Olympic Games. 6% to 10% of the studied World Junior Championships male medalists were successful in the World Championships. Among the World Championships female medalists, 12% won medals at the World Athletics Indoor Championships, 6% won medals at the World Championships, and 2% won the Olympic Games medals.

Źródło:

Journal of Physical Education & Health - Social Perspective; 2021, 10, 18; 43-51
2084-7971

Pojawia się w:

Journal of Physical Education & Health - Social Perspective

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

Zmień widok

• na półce

Skocz do pozycji: 6.

Tytuł:

Zaktualizowana chronologia i metryka poziomowej periodyzacji ontogenezy
Updated chronology and metrics in multi-level periodization of ontogenesis

Autorzy:

Karandashev, Yuri

Powiązania:

https://bibliotekanauki.pl/articles/514195.pdf

Data publikacji:

2018

Wydawca:

Uniwersytet Zielonogórski. Oficyna Wydawnicza

Tematy:

ontogeneza
chronologia ontogenezy
metryka ontogenezy
periodyzacja rozwoju
poziomowa periodyzacja ontogenezy
ewolucyjna koncepcja ontogenezy
ontogenesis
chronology of ontogenesis
metrics of ontogenesis
way of dividing of life
into periods
periodization of ontogenesis
multi-level periodization of development
evolutionary
theory of development

Opis:

Centralnym zagadnieniem psychologii rozwoju, jak również i całej psychologii, jest periodyzacja ontogenezy. Nie tylko podział życia na poszczególne okresy, lecz także utworzenie teorii, która by wyjaśniała, dlaczego życie indywidualne dzieli się na okresy w pewien sposób. Tylko mając podobną teorię, można stawiać pytania dotyczące długości okresów rozwojowych i ich granic. Rozwiązaniu tego drugiego zadania poświęcony jest ten artykuł.
The central problem of development psychology, and psychology in general, is a way of dividing of life into periods called in European tradition as a periodization of ontogenesis. Nor just the division of life into separate periods, but the creation of a theory that would explain why the individual life is divided into periods in a certain way. Only with such a theory, it is possible to wonder about the age periods and the duration of their borders. The solution of second problem appears as an objective of this article.

Źródło:

Psychologiczne Zeszyty Naukowe; 2018, 1; 65-92
2451-1420

Pojawia się w:

Psychologiczne Zeszyty Naukowe

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

Zmień widok

• na półce

Skocz do pozycji: 7.

Tytuł:

Chronologia i metryka rozwoju ontogenetycznego
Chronology and metrics of ontogenetic development

Autorzy:

Karandashev, Yuri

Powiązania:

https://bibliotekanauki.pl/articles/514280.pdf

Data publikacji:

2016

Wydawca:

Uniwersytet Zielonogórski. Oficyna Wydawnicza

Tematy:

ontogeneza
chronologia ontogenezy
metryka ontogenezy
periodyzacja rozwoju
poziomowa periodyzacja ontogenezy
ewolucyjna koncepcja ontogenezy
ontogenesis
chronology of ontogenesis
metrics of ontogenesis
way of dividing of life into periods
periodization of ontogenesis
multi-level periodization of development
evolutionary theory of development

Opis:

Centralnym zagadnieniem psychologii rozwoju, jak również i całej psychologii, jest periodyzacja ontogenezy. Nie tylko podział życia na poszczególne okresy, a utworzenie teorii, która by wyjaśniała, dlaczego życie indywidualne dzieli się na okresy w pewien sposób. Tylko mając podobną teorię, można stawiać pytania dotyczące długości okresów rozwojowych i ich granic. Rozwiązaniu tego drugiego zadania poświęcony jest ten artykuł.
The central problem of development psychology, and psychology in general, is a way of dividing of life into periods called in European tradition as a periodization of ontogenesis. Nor just the division of life into separate periods, but the creation of a theory that would explain why the individual life is divided into periods in a certain way. Only with such a theory, it is possible to wonder about the age periods and the duration of their borders. The solution of second problem appears as an objective of this article

Źródło:

Psychologiczne Zeszyty Naukowe; 2016, 1; 101-124
2451-1420

Pojawia się w:

Psychologiczne Zeszyty Naukowe

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

Zmień widok

• na półce

Skocz do pozycji: 8.

Tytuł:

Ujednolicona chronologia i metryka rozwoju ontogenetycznego
Unified chronology and metrics of ontogenetic development

Autorzy:

Karandashev, Yuri

Powiązania:

https://bibliotekanauki.pl/articles/1387884.pdf

Data publikacji:

2017

Wydawca:

Uniwersytet Zielonogórski. Oficyna Wydawnicza

Tematy:

ontogeneza
chronologia ontogenezy
metryka ontogenezy
periodyzacja rozwoju
poziomowa periodyzacja ontogenezy
ewolucyjna koncepcja ontogenezy
ontogenesis
chronology of ontogenesis
metrics of ontogenesis
way of dividing of life into periods
periodization of ontogenesis
multi-level periodization of development
evolutionary theory of development.

Opis:

Centralnym zagadnieniem psychologii rozwoju, jak również i całej psychologii, jest periodyzacja ontogenezy. Nie tylko podział życia na poszczególne okresy, ale utworzenie teorii, która by wyjaśniała, dlaczego życie indywidualne dzieli się na okresy w pewien sposób. Tylko mając podobną teorię, można stawiać pytania dotyczące długości okresów rozwojowych i ich granic. Rozwiązaniu tego drugiego zadania jest poświęcony ten artykuł.
The central problem of development psychology, and psychology in general, is a way of dividing of life into periods called in european tradition as a periodization of ontogenesis. Nor just the division of life into separate periods, but the creation of a theory that would explain why the individual life is divided into periods in a certain way. Only with such a theory, it is possible to wonder about the age periods and the duration of their borders. The solution of second problem appears as an objective of this article.

Źródło:

Psychologiczne Zeszyty Naukowe; 2017, 2; 11-134
2451-1420

Pojawia się w:

Psychologiczne Zeszyty Naukowe

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

Zmień widok

• na półce

Skocz do pozycji: 9.

Tytuł:

Infraciliature and Cell Division of the Little Known Freshwater Ciliate Uroleptus cf. magnificus (Kahl, 1932) Olmo, 2000 (Hypotricha, Uroleptidae), and List of Published Names in Uroleptus Ehrenberg, 1831 and Paruroleptus Wenzel, 1953

Autorzy:

He, Wei
Shao, Chen
Shi, Xinbai
Berger, Helmut

Powiązania:

https://bibliotekanauki.pl/articles/763702.pdf

Data publikacji:

2011

Wydawca:

Uniwersytet Jagielloński. Wydawnictwo Uniwersytetu Jagiellońskiego

Tematy:

China, Ciliophora, Dorsomarginalia, morphogenesis, ontogenesis, Rigidothrix, Stichotrichia

Opis:

In 1988, we found a large (250–400 × 80–150 μm in protargol preparations) Uroleptus-like hypotrich in a freshwater pond in Harbin, China. We studied the morphology of non-dividers and the cell division using protargol impregnation. Since we disregarded live observations and due to the lack of a modern revision of the uroleptids, a final identification was not possible. A detailed comparison with the most similar limnetic Uroleptus-like hypotrichs and with Rigidothrix goiseri revealed that the Chinese population is very likely identical with Uroleptus magnificus [basionym Holosticha (Paruroleptus) magnificus Kahl, 1932], a very rare species possibly confined to limnetic, stagnant water bodies of the holarctic region. Besides the large size, main features of U. cf. magnificus are: (i) about 80 adoral membranelles; (ii) three or four inconspicuous transverse cirri; (iii) 5–8 dorsomarginal kineties; (iv) the oral primordium originates de novo left of the postoral midventral cirri; (v) the frontal-ventral-transverse cirri anlagen of the proter and the opisthe originate via primary primordia; (vi) the left frontal cirrus of the proter originates from the middle portion of the disorganizing parental paroral; (vii) the parental endoral becomes the undulating membrane anlage for the proter; and (viii) the frontoterminal cirri originate in the plesiomorphic manner, that is, from the rearmost anlage. A compilation reveals that 59 species, subspecies, etc. have been described in or assigned to Uroleptus and Paruroleptus, but only about 50% of them seem to be true uroleptids. Many species of this predominantly limnetic group are little known.

Źródło:

Acta Protozoologica; 2011, 50, 3
1689-0027

Pojawia się w:

Acta Protozoologica

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

Zmień widok

• na półce

Skocz do pozycji: 10.

Tytuł:

Two Oxytrichids from the Ancient Lake Biwa, Japan, with Notes on Morphogenesis of Notohymena australis (Ciliophora, Sporadotrichida)

Autorzy:

Hu, Xiaozhong
KUSUOKA, Yasushi

Powiązania:

https://bibliotekanauki.pl/articles/763654.pdf

Data publikacji:

2015

Wydawca:

Uniwersytet Jagielloński. Wydawnictwo Uniwersytetu Jagiellońskiego

Tematy:

Apoamphisiella, freshwater ciliate, infraciliature, Notohymena, ontogenesis, Stichotrichia

Opis:

Two oxytrichid freshwater ciliates, Apoamphisiella tihanyiensis (Gellért and Tamás, 1958) Foissner, 1997 and Notohymena australis (Foissner and O’Donoghue, 1990) Berger, 1999, were recorded for the first time in Lake Biwa, a 4-million-year-old lake located at the Shiga Prefecture in Japan. Their morphology was investigated based on observations of live and protargol-impregnated material. Based on the present observation and previous descriptions, A. tihanyiensis is characterized by having an elliptical body shape, yellowish cortical granules, two long frontoventral rows, enlarged frontal and transverse cirri, highly variable numbers of frontoventral, and postoral ventral cirri, and six to 11 caudal cirri arranged in three short rows. New data confirm the presence of pretransverse ventral cirri in this species. Morphologically, N. australis differs from its congeners in having the following combination of characters: greenish cortical granules, the cirrus V/2 located slight anterior to the leftmost transverse cirrus, dorsal kinety 3 almost as long as body, and seven to 10 caudal cirri arranged in three short rows. Morphogenesis in N. australis shows the same pattern as in N. apoaustralis but differs from that of other congeners in the origin of oral primordium and the formation of more than just three caudal cirri.

Źródło:

Acta Protozoologica; 2015, 54, 2
1689-0027

Pojawia się w:

Acta Protozoologica

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

Zmień widok

• na półce

Skocz do pozycji: 11.

Tytuł:

Morphological and Morphogenetic Redescriptions and SSU rRNA Gene-based Phylogeny of the Poorly-known Species Euplotes amieti Dragesco, 1970 (Ciliophora, Euplotida)

Autorzy:

LIU, Mingjian
FAN, Yangbo
MIAO, Miao
Hu, Xiaozhong
Al-Rasheid, Khaled A. S.
Al-Farraj, Saleh A.
Ma, Honggang

Powiązania:

https://bibliotekanauki.pl/articles/763760.pdf

Data publikacji:

2015

Wydawca:

Uniwersytet Jagielloński. Wydawnictwo Uniwersytetu Jagiellońskiego

Tematy:

Euplotidae, fresh water ciliate, ontogenesis, phylogenetic analysis, taxonomy

Opis:

This paper investigates the morphology and morphogenesis during binary fission of a Chinese population of Euplotes amieti Dragesco, 1970, a fresh water form which has previously not been well defined. This organism is morphologically very similar to the well-known Euplotes eurystomus but differs from the latter both in the number of dorsal kineties and the molecular data. According to the information obtained, it is characterized by a combination of features including nine frontoventral cirri, ca. 60 membranelles, 12–15 dorsal kineties, a macronucleus in the shape of the number 3, and a ‘double-eurystomus’ type of silverline system. Its morphogenesis proceeds broadly in the same pattern as in its congeners. In this study, the SSU rRNA gene was sequenced for the first time, and phylogenetic analyses indicated that it is closely related to the eurystomus-aediculatus-woodruffi- complex. Considering the extreme similarities in morphology between E. amieti and E.eurystomus, we believe that the four sequences (four isolates) under the name of Euplotes eurystomus (No. FR873716; FR873717; EF193250; AJ310491 deposited in GenBank) are very likely from misidentified material; that is, they represent different populations of Euplotes amieti.

Źródło:

Acta Protozoologica; 2015, 54, 3
1689-0027

Pojawia się w:

Acta Protozoologica

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

Zmień widok

• na półce

Skocz do pozycji: 12.

Tytuł:

Quality of life and physical activity of kindergarden teachers

Autorzy:

Brodáni, Jaroslav
Žišková, Ivana

Powiązania:

https://bibliotekanauki.pl/articles/1031773.pdf

Data publikacji:

2015

Wydawca:

PPHU Projack Jacek Wąsik

Tematy:

activity
age
kindergarden
life quality
ontogenesis
relations
teachers

Opis:

The contribution presents the relationship between the frequency of physical activity during the week and fields of life quality of kindergarden teachers in three mature parts. In the research took part kindergarden teachers from Slovakia (n = 211) who were divided into groups according to their ontogenesis. The life quality was observed with a modified questionnaire SQUALA and the physical activity level frequency during the week. The data is presented by descriptive characteristics (n, M, SD) and statistic importance of differences, let us say relationships which are measured by non-parametric methods (W, U, rs), by the importance level (p<0.05; p<0.10). The results showed the most numerous correlations between the physical activity during the week and fields of life quality of teachers in age group from 36-46 years (middle mature) who do the physical activity M: 3.250 during the week by SD: 2.761. In this group were proved positive correlations with the field of physical well-being (p<0.01), psychosocial well-being (p<0.01), material well-being (p<0.01), education (p<0.10), free time (p<0.05), appearance and property of things (p<0.01). Specially this age is characteristic by reaching the highest goals of physical and mental performance. In the groups of younger and older mature we do not find so many important relationships between the physical activity and some fields of life quality. In these groups we did not find any important correlations of physical activity with physical well-being where the group of young mature reached the same level of physical activity as the group of middle mature. The conclusions show the importance of physical activity in life of kindergarden teachers, they show some possibilities of influencing the life quality through the physical activities but also creating the optimal conditions possibilities to increase the life quality in social environment. The contribution is part of the Ministry of Education grant KEGA 014UKF-4/2013 Improving the quality and level of health of adolescents by means of physical activity in primary and secondary schools.

Źródło:

Physical Activity Review; 2015, 3; 11-21
2300-5076

Pojawia się w:

Physical Activity Review

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

Zmień widok

• na półce

Skocz do pozycji: 13.

Tytuł:

THE DEVELOPMENT OF RESULTS IN 100M AND 400M SPRINT RACES IN ATHLETES AGED FROM 6 TO 100

Autorzy:

Iskra, Janusz
Pietrzak, Michał
Szczęsna, Monika
Gwiazdoń, Paweł

Powiązania:

https://bibliotekanauki.pl/articles/449251.pdf

Data publikacji:

2017

Wydawca:

Politechnika Opolska. Wydział Wychowania Fizycznego i Fizjoterapii

Tematy:

100m
400m
ontogenesis
sports career development

Opis:

The 100 m race is not only a sports discipline but also a way of assessing an athlete’s speed abilities. The run over the distance of 400 metres combines both speed and endurance (anaerobic) capacities. The purpose of the study was to evaluate the development of results in men's 100 and 400m sprint races, taking into account the best performance within the age from 6 to 100. By examining the course and the development of the world's leading sprinters’ careers, the authors took into consideration their best final results achieved each year. They were assigned to three research protocols that included age, successive years of starts, and the period before and after their personal best.The results are presented with arithmetic means and standard deviations (SD). In the comparative analysis of groups of runners over various distances (100 and 400m), the percentage value (%) of the result in relation to the world record over the given distance was chosen as a common element. The research has shown that the age range from 20 to 31 in the 100m race and 20 to 29 in the 400m run respectively, are the best periods for continuation of a sports career suitable for the shortest and longest sprint distance at the highest world level. The development of speed abilities up to the age of 14 is similar to the scale of their regression after the age of 35. Knowledge concerning the change in sports performance level in relation to age provides the opportunity to predict the periods of peak performance in a given sports discipline. This enables a rational and proper planning of the training process.

Źródło:

Journal of Physical Education & Health - Social Perspective; 2017, 6, 9; 27-38
2084-7971

Pojawia się w:

Journal of Physical Education & Health - Social Perspective

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

Zmień widok

• na półce

Skocz do pozycji: 14.

Tytuł:

Apogastrostyla rigescens (Kahl, 1932) gen. nov., comb. nov. (Ciliophora, Hypotricha): Morphology, Notes on Cell Division, SSU rRNA Gene Sequence Data, and Neotypification

Autorzy:

LI, Liqiong
HUANG, Jie
SONG, Weibo
SHIN, Mann Kyoon
AL-RASHEID, Khaled A. S.
BERGER, Helmut

Powiązania:

https://bibliotekanauki.pl/articles/763788.pdf

Data publikacji:

2010

Wydawca:

Uniwersytet Jagielloński. Wydawnictwo Uniwersytetu Jagiellońskiego

Tematy:

China, ecology, Hemigastrostyla, infraciliature, ontogenesis, Spirotricha, Stichotrichia, Yellow Sea

Opis:

The morphology, the infraciliature, some stages of cell division and physiological reorganization, and the SSU rRNA gene sequence of the little-known marine 18-cirri hypotrich Tachysoma rigescens (Kahl, 1932) Borror, 1972 [basionym Oxytricha (Tachysoma) rigescens], isolated from mariculture waters near Qingdao, China, were investigated. This rare species is characterized, inter alia, by narrowly spaced, small, colourless cortical granules and several conspicuous ring-shaped structures in the cytoplasm. The caudal cirri and the simple dorsal kinety pattern (three bipolar kineties) are probably plesiomorphic traits within the Hypotricha, the composition of the adoral zone of the proter from new and parental membranelles, as well as the presence of two ‘extra’ cirri behind the right marginal row strongly suggest a misclassification in Tachysoma. The SSU rRNA gene sequence data indicate that T. rigescens branches off rather basally in the Hypotricha tree, which supports the hypothesis that the 18-cirri pattern occurred very early, probably already in the last common ancestor of the Hypotricha. A detailed survey of the early branching 18-cirri hypotrichs and similar taxa (e.g. Trachelostyla pediculiformis, Hemigastrostyla enigmatica, Protogastrostyla pulchra) reveals that for T. rigescens a new genus (Apogastrostyla gen. nov.) has to be established, because there are important differences, inter alia, in the dorsal infraciliature. Besides the type species, A. rigescens comb. nov., which seems to be confined to the northern hemisphere according to the sparse faunistic data, a second marine species, A. szaboi comb. nov. (basionym Hemigastrostyla szaboi), so far only twice recorded from the Antarctic region, can be included. The Chinese population is fixed as neotype to define the species objectively, because no type material of A. rigescens is present and the original type locality is not known. The species name Tachysoma multinucleate is emended: Tachysoma multinucleatum nom. corr.

Źródło:

Acta Protozoologica; 2010, 49, 3
1689-0027

Pojawia się w:

Acta Protozoologica

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

Zmień widok

• na półce

Skocz do pozycji: 15.

Tytuł:

Exploring the limits of morphospace: ontogeny and ecology of Late Visean ammonoids from the Tafilalt, Morocco

Autorzy:

Klug, C.
De Baets, K.
Korn, D.

Powiązania:

https://bibliotekanauki.pl/articles/22457.pdf

Data publikacji:

2016

Wydawca:

Polska Akademia Nauk. Instytut Paleobiologii PAN

Tematy:

paleoecology
morphospace
ontogenesis
ecology
Late Visean
ammonoid
Ammonoidea
Morocco

Opis:

Early late Viséan ammonoid assemblages in Morocco are composed of diverse and well-preserved specimens. The material was found in a plain in the Tafilalt (eastern Anti-Atlas). Here, we describe mass-occurrences of juvenile specimens, in which subadult and adult specimens occur in low numbers. The juveniles of some species display a conch morphology that differs fundamentally from the adult stages. Accordingly, we emend the species diagnoses of Goniatites lazarus as well as Calygirtyoceras darkaouaense, introduce the species Entogonites bucheri sp. nov., and discuss possible ecological implications of the morphologic changes throughout ontogeny. In particular, we compare the changes in conch morphology through ontogeny in the light of Pareto Optimiality according to which the morphology of organisms would fill a polygon or polyhedron in morphospace. Data points in one of the vorteces of the polyhedron indicate optimisation for the corresponding task. Although shape is not a proof of function, it appears plausible that juvenile conchs were selected rather for compactness while adult conchs were positively selected for conchs with improved hydrodynamic properties. This appears plausible because at small conch diameters, swimming movements will not suffice for effective translocation and a planktonic mode of life is likely.

Źródło:

Acta Palaeontologica Polonica; 2016, 61, 1
0567-7920

Pojawia się w:

Acta Palaeontologica Polonica

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

Zmień widok

• na półce

Skocz do pozycji: 16.

Tytuł:

Die Grenzen der Erkenntnis in der Linguistik: Ontogenese und Phylogenese

Autorzy:

Kotin, Michail L.

Powiązania:

https://bibliotekanauki.pl/articles/458715.pdf

Data publikacji:

2018

Wydawca:

Uniwersytet Wrocławski. Oficyna Wydawnicza ATUT – Wrocławskie Wydawnictwo Oświatowe

Tematy:

language origins
language change
phylogenesis
ontogenesis.
Sprachursprung
Sprachwandel
Phylogenese
Ontogenese

Opis:

Limits of Knowledge in Linguistics: Ontogenesis and Phylogenesis The limits of knowledge in the analysis of natural human languages are due to both properties of language systems as subject of analysis and properties of the human awareness as instrument of cognition. Though the human awareness can follow its own activities by conceptualizing them in symbolic forms, the pre-phase of linguistic competence cannot be reconstructed. The second problem is connected with the time factor, i.e. the compulsive and decisive influence of time which enforces language change independently of partial causes of concrete language change in question.
Die Erkenntnisgrenzen bei der Analyse natürlicher Sprachen ergeben sich sowohl aus den Eigenschaften der Sprachsysteme als Forschungsgegenstand als auch aus den Eigenschaften des menschlichen Bewusstseins als Erkenntniswerkzeug. Obwohl das menschliche Bewusstsein seine eigene Tätigkeit mittels ihrer Konzeptualisierung in symbolischen Formen verfolgen kann, entzieht sich die Vorphase linguistischer Kompetenz gänzlich einer angemessenen Rekonstruktion. Ein weiteres Problem hängt mit dem Zeitfaktor zusammen, d. h. dem unveräußerlichen und entscheidenden Einfluss der Zeit, welcher den Sprachwandel unabhängig von seinen partiellen Ursachen in einer gegebenen Sprache verursacht.

Źródło:

Linguistische Treffen in Wrocław; 2018, 14; 17-28
2084-3062
2657-5647

Pojawia się w:

Linguistische Treffen in Wrocław

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

Zmień widok

• na półce

Skocz do pozycji: 17.

Tytuł:

Morphology and Ontogenesis of a Marine Ciliate, Euplotes balteatus (Dujardin, 1841) Kahl, 1932 (Ciliophora, Euplotida) and Definition of Euplotes wilberti nov. spec.

Autorzy:

Pan, Ying
Li, Liqiong
Shao, Chen
Hu, Xiaozhong
Ma, Honggang
Alrasheid, Khaled A. S.

Powiązania:

https://bibliotekanauki.pl/articles/763622.pdf

Data publikacji:

2012

Wydawca:

Uniwersytet Jagielloński. Wydawnictwo Uniwersytetu Jagiellońskiego

Tematy:

Euplotes balteatus, Euplotes wilberti nov. spec., marine ciliate, morphology, ontogenesis

Opis:

Euplotes balteatus (Dujardin, 1841) Kahl 1932, collected from coastal waters near Qingdao, northern China, was investigated using live observation and silver staining methods. An improved diagnosis and morphometric data are provided. Euplotes balteatus can be identified by the following combination of characters: 10 frontoventral cirri, 2 widely separated marginal cirri, 2 fine caudal cirri, 8 dorsal kineties and a double-eurystomus type silverline system. Its morphogenesis, which is similar to that of several congeners, can be summarized as follows: (1) the opisthe’s oral primordium appears de novo under the pellicle whereas the old oral apparatus is retained by the proter; (2) two groups of frontoventral transverse cirral anlagen, each with five streaks, occur de novo and then develop into the frontoventral and transverse cirri separately according to the formula of “3:3:3:3:2” from left to right; (3) the anlagen for the marginal cirri occur de novo near the parental oral apparatus; (4) migratory cirri of both dividers derive from the anlagen near the paroral membrane; (5) the dorsal kinety anlagen come from dedifferentiation of the parental structures in the mid-body region; (6) caudal cirri are formed at the posterior ends of the two rightmost dorsal kineties. In the light of the present findings, it was concluded that the Antarctic population of E. balteatus reported by Song and Wilbert (2002) was misidentified. A new species, Euplotes wilberti nov. spec., is established for this population.

Źródło:

Acta Protozoologica; 2012, 51, 1
1689-0027

Pojawia się w:

Acta Protozoologica

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

Zmień widok

• na półce

Skocz do pozycji: 18.

Tytuł:

Zmiany inwolucyjne ciśnienia tętniczego krwi oraz tętna u kobiet i mężczyzn w wieku 21-60 lat w aspekcie prozdrowotnym
Health aspects of involutionary changes of blood pressure and heart rate of women and men between 21-60 years of age

Autorzy:

Żychowska, Małgorzata
Gawinek, Marian
Nowak, Monika
Żak, Michał

Powiązania:

https://bibliotekanauki.pl/articles/415774.pdf

Data publikacji:

2009-12

Wydawca:

Małopolska Wyższa Szkoła Ekonomiczna w Tarnowie

Tematy:

inwolucja
nadciśnienie
zróżnicowanie międzypłciowe
ontogeneza
involution
hypertension
sexual balance
ontogenesis

Opis:

Cel pracy: Podjęte badania miały na celu określić zmiany ontogenetyczne dorosłych kobiet i mężczyzn ciśnienia krwi i tętna w populacji o niskim statusie społeczno-ekonomicznym. Materiał i metody: W pracy wykorzystano wyniki badań 142 kobiet i 97 mężczyzn, mieszkańców południowej Lubelszczyzny. Badanych podzielono na grupy wiekowe, 21-30, 31-40, 41-50 oraz 51-60 lat. Wykonano następujące pomiary: ciśnienia tętniczego krwi oraz tętna. Wyniki poddano analizie statystycznej, obliczono wartości średnie i odchylenia standardowe dla każdej z grup wiekowych oraz wskaźnik dymorfizmu (WD). Wyniki i wnioski: Uzyskane wyniki wskazują na niepokojące zmiany nadciśnieniowe u mężczyzn w całym badanym okresie ontogenezy. U kobiet zaobserwowano bardziej regularny przyrost ciśnienia tętniczego z wiekiem; zmiany chorobowe pojawiają się dopiero w najstarszej z grup wiekowych. Nie stwierdzono nietypowych zmian w częstości skurczów serca. Zróżnicowanie międzypłciowe w badanej populacji względem ciśnienia tętniczego malało z wiekiem badanych.
Aim of work: The aim of this experiment was to determine ontogenetic changes of adult women's and men's blood pressure and heart rate within the population with low SES. Material and methods: our work made use of examination results of 142 women and 97 men ― habitants of southern Lublin Voivodeship. The examined were divided into 3 age group: 21-30, 31-40, 41-50 and 51-60. We measured pressure and heart rate. Our results were subject to the statistic analysis, average values and those of the standard deviation were calculated for all the age groups, as well as the dimorphism index. Results and conclusion: the results of the experiment indicate worrying changes in blood pressure in men independently of the age group. We recorded a more regular increase in women's blood pressure and pathological changes appear only in the oldest age group. Non-standard changes in hearth rate were not found. WD index of blood pressure diminished along with age of the examined.

Źródło:

Zeszyty Naukowe Małopolskiej Wyższej Szkoły Ekonomicznej w Tarnowie; 2009, 3(14); 231-244
1506-2635

Pojawia się w:

Zeszyty Naukowe Małopolskiej Wyższej Szkoły Ekonomicznej w Tarnowie

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

Zmień widok

• na półce

Skocz do pozycji: 19.

Tytuł:

Phyllotactic pattern formation in early stages of cactus ontogeny

Autorzy:

Gola, E M

Powiązania:

https://bibliotekanauki.pl/articles/59078.pdf

Data publikacji:

2006

Wydawca:

Polskie Towarzystwo Botaniczne

Tematy:

phyllotactic transformation
pattern formation
early stage
cactus
Cactaceae
ontogenesis
phyllotaxis

Opis:

Representatives of the family Cactaceae are characterized by a wide range of phyllotaxis. To assess the origin of this diversity, early stages of phyllotactic pattern formation were examined in seedlings. The analysis of the sequence of areole initiation revealed intertribal differences. In seedlings from the Trichocereeae (Gymnocalycium, Rebutia) and Notocacteae (Parodia) tribes, two opposite cotyledonal areoles developed as the first elements of a pattern. Usually, next pair of areoles was initiated perpendicularly to cotyledonal areoles, starting the decussate pattern. This pattern was subsequently transformed into bijugate or into simple spiral phyllotaxis. In seedlings from the Cacteae tribe (Mammillaria and Thelocactus), cotyledonal areoles were never observed and the first areoles always appeared in the space between cotyledons. It was either areole pair (mainly in Mammillaria), starting a decussate pattern, or a single areole (mainly in Thelocactus) quickly followed by areoles spirally arranged, usually in accordance with the main Fibonacci phyllotaxis. Differences in the initial stages of pattern formation do not fully explain the phyllotaxis diversity in mature cacti. Only two, the most common phyllotactic patterns occurred in the early development of studied seedlings, i.e. the main Fibonacci and the decussate pattern. Discrepancy in the range of phyllotactic spectra in seedlings and in mature plants suggests that phyllotaxis diversity emerges during further plant growth. Initial phyllotactic transformations, occurring already in the very early stages, indicate great plasticity of cactus growth and seem to support the hypothesis of the ontogenetic increase of phyllotaxis diversity due to transformations.

Źródło:

Acta Societatis Botanicorum Poloniae; 2006, 75, 4; 271-279
0001-6977
2083-9480

Pojawia się w:

Acta Societatis Botanicorum Poloniae

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

Zmień widok

• na półce

Skocz do pozycji: 20.

Tytuł:

The origin of ammonoid locomotion

Autorzy:

Klug, C
Korn, D.

Powiązania:

https://bibliotekanauki.pl/articles/21156.pdf

Data publikacji:

2004

Wydawca:

Polska Akademia Nauk. Instytut Paleobiologii PAN

Tematy:

phylogenesis
Bactritida
ontogenesis
Ammonoidea
conch
coiling
Devonian
paleontology
locomotion
ammonoid

Opis:

Evolution of the coiled ammonoid conch from the uncoiled bactritid conch was probably coupled with changes in manoeuvrability and swimming velocity. The gradual transformation of uncoiled to coiled ammonoid conchs has essential functional consequences. The radical change in conch geometry during phylogeny but also in ontogeny of early ammonoids implies a shift of the aperture from an original roughly downward, via a downward oblique and an upward oblique to an upward orientation, presuming a neutrally buoyant condition of the ammonoid animal. Similar trends were reconstructed for the three main ammonoid lineages in the Middle Devonian, the agoniatitid, the anarcestid, and the tornoceratid lineages. This allowed an increase in manoeuvrability and in the maximum horizontal swimming speed.

Źródło:

Acta Palaeontologica Polonica; 2004, 49, 2
0567-7920

Pojawia się w:

Acta Palaeontologica Polonica

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

Zmień widok

• na półce

Skocz do pozycji: 21.

Tytuł:

The Early Cambrian [Botomian] stem group brachiopod Mickwitzia from Northeast Greenland

Autorzy:

Skovsted, C B
Holmer, L.E.

Powiązania:

https://bibliotekanauki.pl/articles/22580.pdf

Data publikacji:

2003

Wydawca:

Polska Akademia Nauk. Instytut Paleobiologii PAN

Tematy:

ontogenesis
brachiopod
shell structure
Greenland
Cambrian
Mickwitzia
Brachiopoda
paleontology
Botomian

Opis:

The problematic brachiopod Mickwitzia Schmidt, 1888 is re−described based on new material of M. cf. occidens Walcott, 1908 from the Early Cambrian (Botomian) Bastion and Ella Island formations of Northeast Greenland. Etched material demonstrates that Mickwitzia has a lingulid−like juvenile (“larval”) shell with trails of nick−points, reflecting the movement of marginal setae. Juvenile and early mature ventral valves have a lingulid−like pseudointerarea with a pedicle groove. The shell of M. cf. occidens is only partially phosphatic, in particular around the juvenile–early mature shell in both valves. The phosphatic shell includes at least two types of cylindrical structures: (1) slender columns identical with the columns of acrotretoid brachiopods and (2) relatively thicker tubes which may be open to the exterior surface and have internal striations (on the ventral pseudointerarea). The striations are most likely imprints of microvilli and these tubes can be inferred to have contained setae. The thinner linguliform columns and thicker setigerous striated tubes are considered to be homologous with identical structures in the sellate and mitral sclerites of the problematic Micrina, which has been identified as a probable primitive stem group of the Brachiopoda. Mickwitzia represents a more derived member of the stem group Brachiopoda.

Źródło:

Acta Palaeontologica Polonica; 2003, 48, 1
0567-7920

Pojawia się w:

Acta Palaeontologica Polonica

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

Zmień widok

• na półce

Skocz do pozycji: 22.

Tytuł:

Givetian (Middle Devonian) sharks from Cairo, New York (USA): Evidence of early cosmopolitanism

Autorzy:

Potvin-Leduc, D.
Cloutier, R.
Landing, E.
Hernick, L.V.
Mannolini, F.

Powiązania:

https://bibliotekanauki.pl/articles/945591.pdf

Data publikacji:

2015

Wydawca:

Polska Akademia Nauk. Instytut Paleobiologii PAN

Tematy:

Chondrichthyes
Elasmobranchii
Antarctilamnidae
Omalodontiformes
taxonomy
ontogenesis
paleobiogeography
Devonian
North America

Opis:

Whereas cosmopolitan distribution patterns are established for many Late Devonian vertebrates (e.g., placoderms, onychodontiforms), few palaeobiogeographic studies have considered chondrichthyans. Recent discoveries of shark material demonstrate that some chondrichthyans were cosmopolitan by the Middle Devonian. Abundant Givetian microremains have been recovered from the Cairo quarry in eastern New York State, USA. These include teeth of two shark species with Gondwanan affinities, the omalodontid Portalodus mannoliniae sp. nov. and the antarctilamnid Wellerodus priscus. Abundant teeth of P. mannoliniae sp. nov. are characterized by a smooth diplodont crown, polarized cusps, and a labially oriented base. The teeth demonstrate monognathic heterodonty. The juvenile morph is distinguished from the adult by smaller size, slender cusps, and variation in the shape of the base. W. priscus is represented by rare juvenile teeth. Two groups of scales that show affinity to material from northern (Spain) and East Gondwana (Antarctica) are tentatively attributed to the two described species. Antarctilamnid distribution suggests a north Gondwanan origin and a colonization of the margin of the landmass before dispersing to Laurentia by the Middle Devonian. This material further indicates that vertebrate global dispersal was initiated by the Middle Devonian, and emphasizes earlier palaeogeographic interpretations that the Middle Devonian “Hamilton fauna” of North American Laurussia originated in the Early Devonian in South American Gondwana.

Źródło:

Acta Palaeontologica Polonica; 2015, 60, 1; 183-200
0567-7920

Pojawia się w:

Acta Palaeontologica Polonica

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

Zmień widok

• na półce

Skocz do pozycji: 23.

Tytuł:

Five New Spathidiids (Ciliophora: Haptoria) from Caribbean Tank Bromeliads

Autorzy:

Foissner, Wilhelm
WOLF, Klaus W.
KUMAR, Santosh
QUINTELA-ALONSO, Pablo

Powiązania:

https://bibliotekanauki.pl/articles/763469.pdf

Data publikacji:

2014

Wydawca:

Uniwersytet Jagielloński. Wydawnictwo Uniwersytetu Jagiellońskiego

Tematy:

Biodiversity, Dominican Republic, Jamaica, lepidosomes, ontogenesis of Spathidium bromeliophilum, resting cysts

Opis:

There is a widespread belief that spathidiids have few morphological features. In contrast, we show a rich morphological diversity in five new species discovered in tank bromeliads from the Caribbean, using live observation; protargol impregnation; morphometry; scanning electron microscopy; and resting cyst morphology, demonstrating lepidosomes (organic scales) for the first time in spathidiid haptoria. Arcuospathidium bromelicola nov. spec. is very similar to the previously described A. muscorum but its resting cyst has conspicuous, pillar-shaped lepidosomes on the surface. Protospathidium lepidosomatum nov. spec. is very similar to the previously described P. muscicola but has outstanding, nipple-shaped (vs. conical) lepidosomes on the cyst surface. Spathidium bromeliophilum nov. spec., whose ontogenesis is highly similar to that of S. turgitorum, differs from similar species by the body length:width ratio, the number of ciliary rows, the shape of the oral bulge, and details of the ciliary pattern. Spathidium bromelicola nov. spec. is similar to S. muscicola (extrusomes bluntly fusiform and 4 µm long vs. rod-shaped and > 15 µm long) and S. stammeri (resting cyst wall smooth vs. spinous). Spathidium wolfi nov. spec. has an anterior and a posterior contractile vacuole. It differs from the supposed nearest relative, S. faurefremieti, by body size (on average 135 × 25 µm vs. 240 × 17 µm), the shape of the macronucleus (moniliform vs. a long, tortuous strand), and the total number of dorsal brush bristles (on average 47 vs. 72). The bent oral bulge of Arcuospathidium bromelicola and Spathidium bromeliophilum as well as the occurrence of lepidosomes on the cyst surface of Arcuospathidium bromelicola and Protospathidium lepidosomatum are discussed.

Źródło:

Acta Protozoologica; 2014, 53, 2
1689-0027

Pojawia się w:

Acta Protozoologica

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

Zmień widok

• na półce

Skocz do pozycji: 24.

Tytuł:

Ontogeny of a new cyrtosymboline trilobite from the Famennian of Morocco

Autorzy:

Loresey-Aubril, R
Feist, R.

Powiązania:

https://bibliotekanauki.pl/articles/20463.pdf

Data publikacji:

2005

Wydawca:

Polska Akademia Nauk. Instytut Paleobiologii PAN

Tematy:

trilobite
cyrtosymboline trilobite
Famennian
Trilobita
ontogenesis
Proetoidea
Cyrtosymbolinae
protaspis
remains
Morocco
paleontology

Opis:

Abundant trilobite remains were recovered from late mid−Famennian marlstones from various sites in Eastern Tafilalet, southeast Morocco. All belong to a single taxon previously identified as Cyrtosymbole (Waribole) prima. This taxon is designated the type species of Osmolskabole gen. nov. A redefinition of this species, including the description of newly discovered, disarticulated exuviae both in limestone and silicified state of preservation, is given. In particular, silicified sclerites of various sizes allow the first complete growth series of a cyrtosymboline proetid to be presented. The close morphological resemblance of its protaspid stages to known proetoid larvae emphasizes the homogeneity of the early ontogeny in this superfamily. The Famennian proetoid anaprotaspis is also of comparable size to that of other Devonian proetoid larvae. However, their size−range is much less than that observed in Carboniferous larvae. This suggests that the survival of proetoid trilobites at the Frasnian−Famennian Kellwasser crisis did not result from a modification of the developmental strategy, as it might have been the case at the terminal Devonian extinction event. Moreover, O. prima possesses a plectrum from the metaprotaspid to the mid meraspid periods. This implies that the natant hypostomal condition is not steadily acquired early in the ontogeny of the Proetida. Thus we preclude the use of this character in the diagnosis of this order.

Źródło:

Acta Palaeontologica Polonica; 2005, 50, 3
0567-7920

Pojawia się w:

Acta Palaeontologica Polonica

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

Zmień widok

• na półce

Skocz do pozycji: 25.

Tytuł:

Additional observations on the Jurassic belemnoids of Poland
Dodatkowe badania nad belemnitami jurajskimi w Polsce
Dopolnitel'nye issledovanija jurskikh belemnitov v Pol'she

Autorzy:

Pugaczewska, H.

Powiązania:

https://bibliotekanauki.pl/articles/22567.pdf

Data publikacji:

1965

Wydawca:

Polska Akademia Nauk. Instytut Paleobiologii PAN

Tematy:

paleontology
Jurassic
belemnoid
Belemnopsis wiekensis
new species
Belemnopsinae
ontogenesis
structure
rostrum
Polska

Źródło:

Acta Palaeontologica Polonica; 1965, 10, 1
0567-7920

Pojawia się w:

Acta Palaeontologica Polonica

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

Zmień widok

• na półce

Skocz do pozycji: 26.

Tytuł:

Phyllotaxis instability - exploring the depths of first available space

Autorzy:

Szpak, M.
Zagorska-Marek, B.

Powiązania:

https://bibliotekanauki.pl/articles/56528.pdf

Data publikacji:

2011

Wydawca:

Polskie Towarzystwo Botaniczne

Tematy:

phyllotaxis
instability
depth
available space
phyllotactic transition
shoot apical meristem
plant
ontogenesis

Opis:

The theoretical analysis of the consequences of the phyllotactic pattern being propagated according to the first available space rule has revealed that all monojugate patterns, with the exception of the main Fibonacci pattern, should become developmentally unstable in their low expressions. This fact explains why the main Fibonacci pattern plays the dominant role among other patterns of spiral phyllotaxis. The probability that the pattern becomes unstable varies for different patterns, which likely makes them more or less frequent, and thus easier or more difficult to encounter in nature. The unstable pattern inevitably transforms into another, as the computer simulations show. Theoretically predicted instability of low order phyllotaxis may be treated as one of the causes of natural ontogenetic transitions, occurring in plants. This, however, still does not explain why in nature some patterns with high order of phyllotaxis also change, quite readily one into the other, in shoot apical meristem’s ontogeny.

Źródło:

Acta Societatis Botanicorum Poloniae; 2011, 80, 4
0001-6977
2083-9480

Pojawia się w:

Acta Societatis Botanicorum Poloniae

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

Zmień widok

• na półce

Skocz do pozycji: 27.

Tytuł:

A new genus of patellogastropod with unusual protoconch from Miocene of Paratethys

Autorzy:

Anistratenko, O Y
Bandel, K.
Anistratenko, V.V.

Powiązania:

https://bibliotekanauki.pl/articles/21085.pdf

Data publikacji:

2006

Wydawca:

Polska Akademia Nauk. Instytut Paleobiologii PAN

Tematy:

Tectura zboroviensis
Miocene
ontogenesis
Patellogastropoda
protoconch
Tectura pseudolaevigata
Tectura angulata
morphology
teleoconch
paleontology

Opis:

The protoconch and teleoconch morphology of “Tectura” angulata, “Tectura” pseudolaevigata from the Sarmatian and “Tectura” zboroviensisfrom the Badenian of the Eastern Paratethys have been studied in detail for the first time. The new genus Blinia is established for Sarmatian species which are characterized by a protoconch indicative of lecithotrophic type of early development lacking even a short free−swimming larval stage. In contrary the protoconch of Badenian “Tectura” zboroviensis demonstrates features of the shell typical for planktonic larva. The shape and proportions of a pancake−like protoconch in Blinia species suggest the development of young snails in brood pouch in the mantle cavity of maternal individual. The independence of Blinia gen. nov. from other Patellogastropoda such as Tectura, Patella, and Helcion is supported also by characteristics of shell structure. Typical patellogastropod protoconchs are present in the Badenian and the first half of the early Sarmatian and the protoconchs indicating lecithotrophic development are observed in patellogastropods only from the younger half of early Sarmatian and middle Sarmatian deposits. The change in ontogenetic strategy occurred during time of lowered salinity in the Paratethys. We suggest that the snails’ reproductive strategy was modified and free larval life was suppressed to cope with salinity change in the ambient water.

Źródło:

Acta Palaeontologica Polonica; 2006, 51, 1
0567-7920

Pojawia się w:

Acta Palaeontologica Polonica

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

Zmień widok

• na półce

Skocz do pozycji: 28.

Tytuł:

The type species of Cyrtosymbole and the oldest [Famennian] cyrtosymboline trilobites

Autorzy:

Feist, R
Lerosey-Aubril, R.

Powiązania:

https://bibliotekanauki.pl/articles/22254.pdf

Data publikacji:

2005

Wydawca:

Polska Akademia Nauk. Instytut Paleobiologii PAN

Tematy:

cyrtosymboline trilobite
trilobite
Famennian
Trilobita
Cyrtosymbole
ontogenesis
Cyrtosymbolinae
Proetidae
Devonian
Dechenella escoti
paleontology

Opis:

The hitherto poorly known type species of Cyrtosymbole, i.e., Dechenella escoti, is redescribed on the basis of an abundant new material recovered from the early Famennian Lower Griotte Limestone Formation at La Tourière, near Cabrières, southern France. It includes sclerites (hypostome, librigenae, thoracic segments and external surface of the pygidium) that previously were either unknown, or represented by poorly preserved and incomplete specimens, together with a full suite of post−protaspid growth stages. The latter has revealed that certain characters, in particular the preglabellar region and postocular facial sutures, show marked changes between the early and late holaspid stages. In the past, some species have been based on immature specimens; for example the lectotype of C. escoti is an early holaspis, and the characters that it displays have been regarded as diagnostic of the genus. For confident specific assignments in cyrtosymboline trilobites it is important, therefore, to have to hand sufficient material, including late holaspids. A revised diagnosis of Cyrtosymbole is given, and only those species that share diagnostic adult characters with C. escoti are assigned to it. Insights into early growth development exemplified by C. escoti and allies corroborate the attribution of the Cyrtosymbolinae to the Proetidae.

Źródło:

Acta Palaeontologica Polonica; 2005, 50, 3
0567-7920

Pojawia się w:

Acta Palaeontologica Polonica

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

Zmień widok

• na półce

Skocz do pozycji: 29.

Tytuł:

Morphology and ontogeny of the Cambrian edrioasteroid echinoderm Cambraster cannati from western Gondwana

Autorzy:

Zamora, S.
Sumrall, C.D.
Vizcaino, D.

Powiązania:

https://bibliotekanauki.pl/articles/21463.pdf

Data publikacji:

2013

Wydawca:

Polska Akademia Nauk. Instytut Paleobiologii PAN

Tematy:

Echinodermata
Edrioasteroidea
paleobiology
Cambrian
Spain
France
morphology
ontogenesis
edrioasteroid echinoderm
echinoderm
Cambraster cannati
Gondwana

Opis:

A review of the Cambrian edrioasteroid echinoderm Cambraster cannati is made based on new collections from the Iberian Chains (NE Spain) and Montagne Noire (France). New morphological data include a completely articulated oral area and details of ambulacra. Specimens ranging from 4 to 26 mm in diameter provide detailed information concerning the full ontogeny. Important changes through ontogeny mainly affect the marginal ring and the plating pattern of the aboral surface. Comparison with other species of Cambrasterindicates that the aboral surface of Cambraster tastudorum from Australia shows strong resemblance to juvenile specimens of C. cannati. Cambraster cannati was attached directly to the substrate and inhabited relatively high energy, offshore environments from the west margin of Gondwana. Abnormalities in the skeleton are described for the first time in a Cambrian edrioasteroid.

Źródło:

Acta Palaeontologica Polonica; 2013, 58, 3
0567-7920

Pojawia się w:

Acta Palaeontologica Polonica

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

Zmień widok

• na półce

Skocz do pozycji: 30.

Tytuł:

Early ontogeny of Jurassic bakevelliids and their bearing on bivalve evolution

Autorzy:

Malchus, N

Powiązania:

https://bibliotekanauki.pl/articles/22830.pdf

Data publikacji:

2004

Wydawca:

Polska Akademia Nauk. Instytut Paleobiologii PAN

Tematy:

phylogenesis
Pteriomorphia
Bakevelliidae
shell
bakevelliid
larva shell
Jurassic
bivalve
ontogenesis
Bivalvia
evolution
larva
paleontology

Opis:

Larval and earliest postlarval shells of Jurassic Bakevelliidae are described for the first time and some complementary data are given concerning larval shells of oysters and pinnids. Two new larval shell characters, a posterodorsal outlet and shell septum are described. The outlet is homologous to the posterodorsal notch of oysters and posterodorsal ridge of arcoids. It probably reflects the presence of the soft anatomical character post−anal tuft, which, among Pteriomorphia, was only known from oysters. A shell septum was so far only known from Cassianellidae, Lithiotidae, and the bakevelliid Kobayashites. A review of early ontogenetic shell characters strongly suggests a basal dichotomy within the Pteriomorphia separating taxa with opisthogyrate larval shells, such as most (or all?) Praecardioida, Pinnoida, Pterioida (Bakevelliidae, Cassianellidae, all living Pterioidea), and Ostreoida from all other groups. The Pinnidae appear to be closely related to the Pterioida, and the Bakevelliidae belong to the stem line of the Cassianellidae, Lithiotidae, Pterioidea, and Ostreoidea. The latter two superfamilies comprise a well constrained clade. These interpretations are consistent with recent phylogenetic hypotheses based on palaeontological and genetic (18S and 28S mtDNA) data. A more detailed phylogeny is hampered by the fact that many larval shell characters are rather ancient plesiomorphies.

Źródło:

Acta Palaeontologica Polonica; 2004, 49, 1
0567-7920

Pojawia się w:

Acta Palaeontologica Polonica

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

Zmień widok

• na półce

Skocz do pozycji: 31.

Tytuł:

The growth of body mass and linear development of Simmental heifers of different constitution types in the Carpathian pre-mountain region
Masa ciała i rozwój cech liniowych jałówek rasy simmental w różnych typach konstytucji w regionie przedgórskim

Autorzy:

Fedak, V.
Vovk, S.
Polulikh, M.
Shelevach, A.
Fedak, N.
Stadnitska, O.

Powiązania:

https://bibliotekanauki.pl/articles/2619258.pdf

Data publikacji:

2020

Wydawca:

Zachodniopomorski Uniwersytet Technologiczny w Szczecinie. Wydawnictwo Uczelniane ZUT w Szczecinie

Tematy:

heifer
Simmental breed
ontogenesis
postnatal development
body mass
body measurement
body structure
Carpathian Region

Źródło:

Acta Scientiarum Polonorum. Zootechnica; 2020, 19, 1; 25-30
1644-0714

Pojawia się w:

Acta Scientiarum Polonorum. Zootechnica

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

Zmień widok

• na półce

Skocz do pozycji: 32.

Tytuł:

Cell compound of parenchyma and extracellular matrices of Triaenophorus nodulosus [Cestoda] in ontogenesis

Autorzy:

Korneva, J.V.

Powiązania:

https://bibliotekanauki.pl/articles/841015.pdf

Data publikacji:

1998

Wydawca:

Polskie Towarzystwo Parazytologiczne

Tematy:

Triaenophorus nodulosus
Cestoda
cell forming
ontogenesis
life cycle
muscle cell
cell compound
tegument cell
parenchyma

Źródło:

Annals of Parasitology; 1998, 44, 3
0043-5163

Pojawia się w:

Annals of Parasitology

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

Zmień widok

• na półce

Skocz do pozycji: 33.

Tytuł:

A giant skull of the temnospondyl Xenotosuchus africanus from the Middle Triassic of South Africa and its ontogenetic implications

Autorzy:

Damiani, R

Powiązania:

https://bibliotekanauki.pl/articles/21570.pdf

Data publikacji:

2008

Wydawca:

Polska Akademia Nauk. Instytut Paleobiologii PAN

Tematy:

Temnospondyli
Triassic
paleontology
ontogenesis
Africa
Middle Triassic
variation
temnospondyl form
Xenotosuchus africanus
South Africa
skull

Opis:

A previously unreported large skull of the mastodonsaurid temnospondyl Xenotosuchus africanus, from the Cynognathus Assemblage Zone (Early to Middle Triassic) of the Beaufort Group, Karoo Basin of South Africa, is described. The species is plesiomorphic in most aspects of its cranial anatomy, and only one autapomorphy is tentatively identified herein, namely contact between the left and right exoccipitals posterior to the parasphenoid. The new specimen permits recognition of a growth series for X. africanus from sub−adult (all previously known specimens) to fully adult (new specimen) stages. Ontogenetic changes associated with this include changes in skull proportions, and changes in the morphology of the lacrimal flexure, frontal, postfrontal, cultriform process and body of the parasphenoid, and the transvomerine tooth row.

Źródło:

Acta Palaeontologica Polonica; 2008, 53, 1
0567-7920

Pojawia się w:

Acta Palaeontologica Polonica

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

Zmień widok

• na półce

Skocz do pozycji: 34.

Tytuł:

A new Arctic hadrosaurid from the Prince Creek Formation (lower Maastrichtian) of northern Alaska

Autorzy:

Mori, H.
Druckenmiller, P.S.
Erickson, G.M.

Powiązania:

https://bibliotekanauki.pl/articles/23525.pdf

Data publikacji:

2016

Wydawca:

Polska Akademia Nauk. Instytut Paleobiologii PAN

Tematy:

new species
Arctic
hadrosaurid
Dinosauria
Hadrosauridae
Saurolophinae
Edmontosaurini
ontogenesis
Cretaceous
Prince Creek Formation
Maastrichtian
Alaska

Opis:

The Liscomb bonebed in the Price Creek Formation of northern Alaska has produced thousands of individual bones of a saurolophine hadrosaurid similar to Edmontosaurus; however, the specific identity of this taxon has been unclear, in part because the vast majority of the remains represent immature individuals. In this study, we address the taxonomic status of the Alaskan material through a comparative and quantitative morphological analysis of juvenile as well several near adult-sized specimens with particular reference to the two known species of Edmontosaurus, as well as a cladistic analysis using two different matrices for Hadrosauroidea. In the comparative morphological analysis, we introduce a quantitative method using bivariate plots to address ontogenetic variation. Our comparative anatomical analysis reveals that the Alaskan saurolophine possesses a unique suite of characters that distinguishes it from Edmontosaurus, including a premaxillary circumnarial ridge that projects posterolaterally without a premaxillary vestibular promontory, a shallow groove lateral to the posterodorsal premaxillary foramen, a relatively narrow jugal process of the postorbital lacking a postorbital pocket, a relatively tall maxilla, a relatively gracile jugal, a more strongly angled posterior margin of the anterior process of the jugal, wide lateral exposure of the quadratojugal, and a short symphyseal process of the dentary. The cladistic analyses consistently recover the Alaskan saurolophine as the sister taxon to Edmontosaurus annectens + Edmontosaurus regalis. This phylogenetic assessment is robust even when accounting for ontogenetically variable characters. Based on these results, we erect a new taxon, Ugrunaaluk kuukpikensis gen. et sp. nov. that contributes to growing evidence for a distinct, early Maastrichtian Arctic dinosaur community that existed at the northernmost extent of Laramidia during the Late Cretaceous.

Źródło:

Acta Palaeontologica Polonica; 2016, 61, 1
0567-7920

Pojawia się w:

Acta Palaeontologica Polonica

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

Zmień widok

• na półce

Skocz do pozycji: 35.

Tytuł:

Miocene cyclopid copepod from a saline paleolake in Mojave, California

Autorzy:

Holynska, M.
Leggitt, L.
Kotov, A.A.

Powiązania:

https://bibliotekanauki.pl/articles/20781.pdf

Data publikacji:

2016

Wydawca:

Polska Akademia Nauk. Instytut Paleobiologii PAN

Tematy:

Miocene
cyclopid copepod
copepod
Copepoda
Cyclopidae
ontogenesis
biogeography
Barstow Formation
saline lake
paleontology
Mojave Desert
California

Opis:

There are remarkably few direct fossil records of Copepoda, which implies that current estimates of the lineage divergence times and inferences on the historical biogeography remain highly dubious for these small-sized crustaceans. The Cyclopidae, a predominantly freshwater copepod family with 1000+ species and distributed worldwide, has no fossil record at all. Recent collections from the middle Miocene Barstow Formation in Southern California resulted in ample material of finely preserved cyclopid fossils, including both adult and larval stages. To document the antennulary setation pattern in the adult and copepodid instars we used a coding system that is coherent between sexes and developmental stages. The majority of the cyclopid fossils, coming from saline lake environment, represent the modern genus Apocyclops, a euryhaline, thermophilic group occurring both in the New World and Old World. A new species Apocyclops californicus is described, based on the short medial spine and spiny ornamentation of the free segment of leg 5, spinule ornamentation of pediger 5, and well-developed protuberances of the intercoxal sclerite of leg 4. The presence of antennal allobasis and the features of the swimming legs unambiguously place the Miocene Apocyclops in the A. panamensis- clade, a predominantly amphi-Pacific group. The middle Miocene fossils with clear affinities to a subgroup of Apocyclops imply an early Miocene or Paleogene origin of the genus. Based on the geographic patterns of the species richness and morphology in Apocyclops and its presumed closest relative, genus Metacyclops, we hypothesize that: (i) the ancestor of Apocyclops, similar in morphology to some cave-dweller Metacyclops occurring today in the peri-Mediterranean region, might have arrived in North America from Europe via the Thulean North Atlantic bridge in the late Paleocene–early Eocene; (ii) Eocene termination of the Thulean land connection might have resulted in the divergence of Apocyclops from the Metacyclops stock.

Źródło:

Acta Palaeontologica Polonica; 2016, 61, 2
0567-7920

Pojawia się w:

Acta Palaeontologica Polonica

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

Zmień widok

• na półce

Skocz do pozycji: 36.

Tytuł:

A new species of the sauropsid reptile Nothosaurus from the Lower Muschelkalk of the western Germanic Basin, Winterswijk, The Netherlands

Autorzy:

Klein, N.
Albers, P.C.H.

Powiązania:

https://bibliotekanauki.pl/articles/22006.pdf

Data publikacji:

2009

Wydawca:

Polska Akademia Nauk. Instytut Paleobiologii PAN

Tematy:

new species
sauropsid reptile
Nothosaurus
Lower Muschelkalk
Germanic Basin
Winterswijk town
Netherlands,The
paleobiology
Sauropterygia
ontogenesis

Opis:

A nothosaur skull recently discovered from the Lower Muschelkalk (early Anisian) locality of Winterswijk, The Netherlands, represents at only 46 mm in length the smallest nothosaur skull known today. It resembles largely the skull morphology of Nothosaurus marchicus. Differences concern beside the size, the straight rectangular and relative broad parietals, the short posterior extent of the maxilla, the skull proportions, and the overall low number of maxillary teeth. In spite of its small size, the skull can not unequivocally be interpreted as juvenile. It shows fused premaxillae, nasals, frontals, and parietals, a nearly co−ossified jugal, and fully developed braincase elements, such as a basisphenoid and massive epipterygoids. Adding the specimen to an existing phylogenetic analysis shows that it should be assigned to a new species, Nothosaurus winkelhorsti sp. nov., at least until its juvenile status can be unequivocally verified. Nothosaurus winkelhorsti sp. nov. represents, together with Nothosaurus juvenilis, the most basal nothosaur, so far.

Źródło:

Acta Palaeontologica Polonica; 2009, 54, 4
0567-7920

Pojawia się w:

Acta Palaeontologica Polonica

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

Zmień widok

• na półce

Skocz do pozycji: 37.

Tytuł:

The regulatory role of AtDeg5 chloroplast protease in chronological progression of principal growth stages in Arabidopsis thaliana plants

Autorzy:

Baranek, M.
Lucinski, R.
Jackowski, G.

Powiązania:

https://bibliotekanauki.pl/articles/80598.pdf

Data publikacji:

2013

Wydawca:

Polska Akademia Nauk. Czytelnia Czasopism PAN

Tematy:

conference
serine-type protease
chymotrypsin
thylakoid membrane
photosystem II
protease
chloroplast
Arabidopsis thaliana
ontogenesis
growth stage

Źródło:

BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology; 2013, 94, 3
0860-7796

Pojawia się w:

BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

Zmień widok

• na półce

Skocz do pozycji: 38.

Tytuł:

Late Famennian stromatoporoids from Debnik Anticline, southern Poland

Autorzy:

Wolniewicz, P

Powiązania:

https://bibliotekanauki.pl/articles/19981.pdf

Data publikacji:

2009

Wydawca:

Polska Akademia Nauk. Instytut Paleobiologii PAN

Tematy:

paleontology
Famennian
Late Famennian
stromatoporoid
Polska
Porifera
ontogenesis
Quasiendothyra communis
Clathrodictyida
Gerronostroma
Stylostroma
Labechiida
Gerronostroma raclaviense
Stromatoporoidea

Opis:

Famennian Stromatoporoidea from the Quasiendothyra communis Foraminiferal Zone and slightly younger strata from the Dębnik anticline, southern Poland, form a succession of three consecutive assemblages. Assemblages 1 and 3 consist of representatives of the order Clathrodictyida, while assemblage 2 is dominated by the order Labechiida. The clathrodictyids are represented by the genus Gerronostroma, and labechiids are represented by the genus Stylostroma. Species assigned here to the genus Gerronostroma show a network of amalgamated pillars in the central part of the columns, a feature regarded by previous authors as typical of the genus Clavidictyon. Two new species, Stylostroma multiformis sp. nov. and Gerronostroma raclaviense sp. nov., are described. Stromatoporoids from southern Poland differ from the Famennian fauna of western Europe, showing affinity to eastern European and Siberian Stromatoporoidea.

Źródło:

Acta Palaeontologica Polonica; 2009, 54, 2; 337-350
0567-7920

Pojawia się w:

Acta Palaeontologica Polonica

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

Zmień widok

• na półce

Skocz do pozycji: 39.

Tytuł:

O niejednoznaczności idei pomocy
The Ambiguity of the Idea of Assistance

Autorzy:

Kusak, Leszek

Powiązania:

https://bibliotekanauki.pl/articles/468688.pdf

Data publikacji:

2012

Wydawca:

Polska Akademia Nauk. Instytut Filozofii i Socjologii PAN

Tematy:

the idea of assistance
love and compassion ethics
moral fashion
false consciousness
altruism
postembrional ontogenesis
Mängelwesen
lifestyle

Opis:

The idea of assistance is important in philosophy, moral science, and in socialpolitical and economic life. Its generally positive connotation is associated mainly with its clear entanglement in the world of moral values. Assistance and altruistic actions on behalf of others are treated as a differentiator and a fundamental commitment of those who would be called, “good.” Nietzsche and other „masters of suspicion” who refute the myth of transparency and obviousness of the human self questioned the established perception of the idea of assistance. Modern science also brings its contribution to the destruction of the image of this idea, and claims that this idea is incompatible with reality; this brings to light sophisticated forms of selfishness hiding behind the appearance of morality. The position of the idea of assistance can be, nevertheless, rebuilt on a new, extra-moral ground by referring to the findings of contemporary philosophical anthropology. It points at the fundamental importance of assistance in the constituting process of the human species: without the spirit of solidarity, without spontaneous acts of assistance, not only would people never have become fully human, but in general, life in a human form would have had no chance to survive.

Źródło:

Prakseologia; 2012, 153; 11-30
0079-4872

Pojawia się w:

Prakseologia

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

Zmień widok

• na półce

Skocz do pozycji: 40.

Tytuł:

A glimpse at the ontogeny of the fossil neobatrachian frog Calyptocephalella canqueli from the Deseadan (Oligocene) of Patagonia, Argentina

Autorzy:

Muzzopappa, P.
Nicoli, L.

Powiązania:

https://bibliotekanauki.pl/articles/20186.pdf

Data publikacji:

2010

Wydawca:

Polska Akademia Nauk. Instytut Paleobiologii PAN

Tematy:

ontogenesis
paleontology
fossil
neobatrachian frog
frog
Calyptocephalella canqueli
Anura
Neobatrachia
Australobatrachia
Calyptocephalella
osteogenesis
Cenozoic
Deseadan
Oligocene
Patagonia
Argentina

Opis:

Two fossil tadpoles collected in the Deseadan levels (Oligocene) at the Scarritt Pocket locality of central Patagonia are studied herein. These specimens, which show different degrees of skeletal development, have been assigned to the neobatrachian Calyptocephalella canqueli based on the morphology of the frontoparietals and the presence of adult specimens of this fossil species at the same locality. The concurrent analysis of three developmental stages (Gosner Stages 35/36 and 38/39, and adult) has provided significant data about the ontogeny of this species, including the change of the pattern of exostosis of the frontoparietals, from a pitted to a tuberculated pattern, and the corroboration of the inclusion of two neural arches in the formation of the urostyle. This evidence will shed light on developmental mechanisms that might be involved in the evolution of the genus Callyptocephalella.

Źródło:

Acta Palaeontologica Polonica; 2010, 55, 4
0567-7920

Pojawia się w:

Acta Palaeontologica Polonica

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

Zmień widok

• na półce

Skocz do pozycji: 41.

Tytuł:

Microstructural diversity of the stylophyllid [Scleractinia] skeleton

Autorzy:

Stolarski, J
Russo, A.

Powiązania:

https://bibliotekanauki.pl/articles/22102.pdf

Data publikacji:

2002

Wydawca:

Polska Akademia Nauk. Instytut Paleobiologii PAN

Tematy:

stylophyllid
paleobiology
Scleractinia
skeleton
morphology
Jurassic
Stylophyllina
microstructure
Haimeicyclus haimei
ontogenesis
diversity
Stylophyllopsis
deposit
coral
solitary coral
paleontology

Opis:

Coralla of the three species of solitary corals described herein from the Sinemurian (Lower Jurassic) of Sicily, i.e., Haimeicyclus haimei (Chapuis and Dewalque, 1853), Stylophyllopsis sp. cf. S. rugosa (Duncan and Wright, 1867), and Stylophyllopsis sp. A., conform to the overall stylophyllid morphology. Their septa consist of spines that are increasingly covered with sclerenchyme and low in the calice form compact blades. The pattern of diagenetic alteration of septa is diverse but consistent within particular taxa. It suggests that the spectrum of the original microstructures is wider than traditionally suggested for stylophyllids. In H. haimei, the septa are covered with dense granulations and completely recrystallized. Granulations also cover septal faces of Stylophyllopsis cf. rugosa and have rod−like foundations. In Stylophyllopsis sp. A., vestiges of the narrow mid−septal zone (similar to that in minitrabecular corals) occur in the proximal part of larger septa, whereas septal spines which are similar to those in Stylophyllopsis cf. rugosa occur in their distal parts. Similar diversity of microstructures is reported also in Triassic stylophyllids that have aragonitic coralla. The presence of distinct septal spines along with wide−ranging microstructural diversity of traditional Triassic–Jurassic stylophyllids, casts light on their possible evolutionary relationships, and can be a useful criterion for further revision of the group. For example, Jurassic thecocyathids, considered ancestral to caryophylliinans, share similar spiny/lobate septa with stylophyllids. Also Recent deep−water anthemiphylliids with spiny/lobate septa are strikingly similar to stylophyllids. Although this may be another example of parallel evolution, the separation of anthemiphylliids from other scleractinian clades on a mitochondrial 16S RNA tree topology suggests their ancient roots and enable us to suggest a stylophyllid ancestry. The supposed cyclic pattern of protoseptal insertion in Early Jurassic H. haimei supports the hypothesis of scleractinian−like (and not rugosan) ancestory of the stylophyllid evolutionary lineage.

Źródło:

Acta Palaeontologica Polonica; 2002, 47, 4
0567-7920

Pojawia się w:

Acta Palaeontologica Polonica

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

Zmień widok

• na półce

Skocz do pozycji: 42.

Tytuł:

Functional morphology and modifications on spine growth in the productid brachiopod Heteralosia slocomi

Autorzy:

Perez-Huerta, A.

Powiązania:

https://bibliotekanauki.pl/articles/22228.pdf

Data publikacji:

2013

Wydawca:

Polska Akademia Nauk. Instytut Paleobiologii PAN

Tematy:

functional morphology
modification
spine growth
productid brachiopod
brachiopod
Heteralosia slocomi
Brachiopoda
Productida
tubular hollow spine
silicification
ontogenesis
paleoecology

Opis:

Spines are one of the most characteristic ornamenting features of many fossil brachiopod taxa. Despite several studies of spines in different species, there is still insufficient information about the development, functionalmorphology, andmodifications of brachiopod spines. In particular, ontogenetic data are very rare and the understanding of the relationship between functional morphology and paleoecology is elusive. The present study analyzes the functional morphology and modifications on spines of the Pennsylvanian brachiopod species Heteralosia slocomi throughout ontogeny. Spines are tubular hollow and only displayed on the surface of the ventral valves, where they develop from a specific point at the margins of the growth lamellae and directed towards the anterolateral margins.Modifications of up to 180 from this original direction of growth are observed in response to ecological pressure and biotic interactions. The function of these spines is primarily for attachment by clasping and cementation, but the possibility of spines acting as sensory mechanisms is not excluded.

Źródło:

Acta Palaeontologica Polonica; 2013, 58, 2
0567-7920

Pojawia się w:

Acta Palaeontologica Polonica

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

Zmień widok

• na półce

Skocz do pozycji: 43.

Tytuł:

Early ontogeny and palaeoecology of the Mid-Miocene rissoid gastropods of the Central Paratethys

Autorzy:

Kowalke, T
Harzhauser, M.

Powiązania:

https://bibliotekanauki.pl/articles/21635.pdf

Data publikacji:

2004

Wydawca:

Polska Akademia Nauk. Instytut Paleobiologii PAN

Tematy:

Miocene
gastropod
Mohrensternia pfaffstaettensis
morphology
embryonic shell
Sarmatian
Mohrensternia hollabrunnensis
Gastropoda
ontogenesis
Caenogastropoda
rissoid gastropod
Badenian
paleoecology
Rissooidea
Littorinimorpha

Opis:

Twenty−six species of Rissoidae (Caenogastropoda: Littorinimorpha: Rissooidea) are described from the Badenian and Early Sarmatian of 14 localities in Austria and the Czech Republic (Molasse Basin, Styrian Basin, Vienna Basin) and from the Badenian of Coştei (Romania). For the first time, the early ontogenetic skeletal characters of these gastropods are described. Based on these features an indirect larval development with a planktotrophic veliger could be reconstructed for all investigated Mid−Miocene species. The status of Mohrensterniinae as a subfamily of the Rissoidae is confirmed by the morphology of the low conical protoconch, consisting of a fine spirally sculptured embryonic shell and a larval shell which is smooth except for growth lines. Transitions from embryonic shells to larval shells and from larval shells to teleoconchs are slightly thickened and indistinct. Whilst representatives of the subfamily Rissoinae characterise the marine Badenian assemblages, Mohrensterniinae predominate the Early Sarmatian faunas. We hypothesize that this take−over by the Mohrensterniinae was triggered by changes in the water chemistry towards polyhaline conditions. Consequently, the shift towards hypersaline conditions in the Late Sarmatian is mirrored by the abrupt decline of the subfamily. Four new species Rissoa costeiensis (Rissoinae) from the Badenian and Mohrensternia hollabrunnensis, Mohrensternia pfaffstaettensis, and Mohrensternia waldhofensis (Mohrensterniinae) from the Early Sarmatian are introduced.

Źródło:

Acta Palaeontologica Polonica; 2004, 49, 1
0567-7920

Pojawia się w:

Acta Palaeontologica Polonica

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

Zmień widok

• na półce

Skocz do pozycji: 44.

Tytuł:

Ontogenetic changes in the craniomandibular skeleton of the abelisaurid dinosaur Majungasaurus crenatissimus from the Late Cretaceous of Madagascar

Autorzy:

Ratsimbaholison, N.O.
Felice, R.N.
O’Connor, P.M.

Powiązania:

https://bibliotekanauki.pl/articles/21868.pdf

Data publikacji:

2016

Wydawca:

Polska Akademia Nauk. Instytut Paleobiologii PAN

Tematy:

ontogenetic change
craniomandibular skeleton
abelisaurid dinosaur
Majungasaurus crenatissimus
Dinosauria
Abelisauridae
geometric morphometrics
ontogenesis
skull
Cretaceous
Gondwana
Late Cretaceous
Madagascar

Opis:

Abelisaurid theropods were one of the most diverse groups of predatory dinosaurs in Gondwana during the Cretaceous. The group is characterized by a tall, wide skull and robust cervical region. This morphology is thought to have facilitated specialized feeding behaviors such as prolonged contact with prey. The Late Cretaceous abelisaurid Majungasaurus crenatissimus typifies this abelisaurid cranial morphotype. Recent fossil discoveries of this species include a partial growth series that allows for the first time an investigation of ontogenetic variation in cranial morphology in a representative abelisaurid. Herein we examine growth trajectories in the shape of individual cranial bones and articulated skulls of Majungasaurus using geometric morphometrics. Several major changes in skull shape were observed through ontogeny, including an increase in the height of the jugal, postorbital, and quadratojugal, an increase in the extent of the contacts between bones, and a decrease in the circumference of the orbit. The skull transitions from relatively short in the smallest individual to tall and robust in large adults, as is seen in other theropods. Such morphological change during ontogeny would likely have resulted in different biomechanical properties and feeding behaviors between small and large individuals. These findings provide a post-hatching developmental framework for understanding the evolution of the distinctive tall skull morphology seen in abelisaurids and other large-sized theropod dinosaurs.

Źródło:

Acta Palaeontologica Polonica; 2016, 61, 2
0567-7920

Pojawia się w:

Acta Palaeontologica Polonica

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

Zmień widok

• na półce

Skocz do pozycji: 45.

Tytuł:

Sprachontologie und Entwicklung natürlicher Sprachen
Linguistic ontology and development of natural languages

Autorzy:

Kotin, Michail L.

Powiązania:

https://bibliotekanauki.pl/articles/555507.pdf

Data publikacji:

2018

Wydawca:

Uniwersytet Warszawski. Wydział Lingwistyki Stosowanej

Tematy:

anthropocentric language concept
origin of language
language change
phylogenesis
ontogenesis
language contacts
anthropozentrisches Sprachkonzept
Sprachursprung
Sprachwandel
Phypogenese
Ontogenese
Sprachkontakte

Opis:

The real existence of human languages is, according to Prof. Franciszek Grucza, an anthropocentric phenomenon, i.e., it concerns not only the individual speaker’s competence in the Chomskyan model, but also the existence of a language as instrument of mental activity and communication, which is situated, as an idiolect, in the minds of human beings who belong to the given language community. Idiolects are, for their part, phenomena underlying mutual changes caused by the development of the individual awareness in its permanent interaction with the idiolects of other members of the language society. The detection of these changes and their appropriate interpretation allows us to draw conclusions concerning the interaction of ontogenesis and phylogenesis in the creation of human languages. On the background of the anthropocentric linguistics developed by F. and S. Grucza, the problem in question receives a new dimension, namely it is about the dynamic aspect of the interaction of individual and socially-conditioned features as well as language acquisition and so called “systemic” change in the process of language evolution.

Źródło:

Applied Linguistics Papers; 2018, 25/1; 25-37
2544-9354

Pojawia się w:

Applied Linguistics Papers

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

Zmień widok

• na półce

Skocz do pozycji: 46.

Tytuł:

Allometric growth in the frontals of the Mongolian theropod dinosaur Tarbosaurus bataar

Autorzy:

Yun, C.-G.
Peters, G.F.
Currie, P.J.

Powiązania:

https://bibliotekanauki.pl/articles/31341395.pdf

Data publikacji:

2022

Wydawca:

Polska Akademia Nauk. Instytut Paleobiologii PAN

Tematy:

paleontology
allometric growth
frontal bone
growth change
Mongolia
dinosaur
theropod dinosaur
Tarbosaurus bataar
Dinosauria
Theropoda
Tyrannosauridae
Tyrannosaurus rex
ontogenesis
allometry

Źródło:

Acta Palaeontologica Polonica; 2022, 67, 3; 601-615
0567-7920

Pojawia się w:

Acta Palaeontologica Polonica

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

Zmień widok

• na półce

Skocz do pozycji: 47.

Tytuł:

Neurobiologiczne mechanizmy zachowań emocjonalnych i wolicjonalnych a strategie terapii logopedycznej
Neurobiological Mechanisms of Emotional and Volitional Behaviors vis-à-vis Strategies for Logopedic Therapy

Autorzy:

Panasiuk, Jolanta

Powiązania:

https://bibliotekanauki.pl/articles/892747.pdf

Data publikacji:

2020-08-27

Wydawca:

Polskie Towarzystwo Logopedyczne

Tematy:

filogeneza mowy
ontogeneza mowy
pragmatyczne funkcje wypowiedzi
zaburzenia mowy
postępowanie logopedyczne
speech phylogenesis
speech ontogenesis
pragmatic functions of utterances
speech disorders
speech therapy management

Opis:

Przyjąć należy, że możliwości językowe i umysłowe człowieka są stopniowalne, co wynika zarówno z praw ewolucji gatunku ludzkiego, jak też z etapów rozwoju każdej jednostki. Porządek następowania kolejnych faz w procesie kształtowania się czynności psychicznych określony jest zasadą: od najbardziej pierwotnych do coraz bardziej złożonych. Ta hierarchia opiera się na uwarunkowaniach neurobiologicznych – w procesach formowania i odbioru wypowiedzi uczestniczą wszystkie piętra organizacji mózgu, począwszy od najstarszej części, czyli pnia, który jest związany z gotowością do mówienia i automatyzacją przebiegów głosowych, poprzez układ limbiczny, który reguluje emocjonalno-motoryczny aspekt wypowiedzi, aż po układ najmłodszy, czyli korowy, który odpowiada za planowanie językowe. W artykule zaprezentowano strategie, jakie należy przyjąć w stymulowaniu, kształtowaniu i odbudowie zachowań językowych u dzieci i dorosłych z zaburzeniami mowy o podłożu neurologicznym. Strategie te wynikają z ewolucyjnych i ontogenetycznych praw rozwoju i działania układu nerwowego u człowieka.
It should be assumed that human linguistic and intellectual capabilities are gradable, which follows from both the laws of evolution of the human species and from developmental stages of each individual. The order of succession of the stages in the process of formation of mental functions is determined by the principle: from the most primitive to the increasingly complex. This hierarchy is based on neurobiological determinants: all the levels of the brain organization participate in the processes of forming and receiving utterances, from the oldest or the brain stem, which is connected with the readiness to speak and automation of vocal sequences, to the limbic level, which regulates the emotional and motor aspect of utterances, to the youngest or cortical level, which is responsible for language planning. The paper presents strategies that should be adopted to stimulate, shape and rebuild linguistic behaviors of children and adults with neurologically-based speech disorders. These strategies stem from the evolutionary and ontogenetic laws of the development and functioning of the human nervous system.

Źródło:

Logopedia; 2018, 47, 2; 101-121
0459-6935

Pojawia się w:

Logopedia

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

Zmień widok

• na półce

Skocz do pozycji: 48.

Tytuł:

Zachowania zdrowotne kobiet w ciąży w kontekście zdrowia i rozwoju noworodka
Pro-health behaviours of pregnant women in the context of newborns’ health and development

Autorzy:

Kaiser, Alicja
Sokołowski, Marek
Kaiser, Anna

Powiązania:

https://bibliotekanauki.pl/articles/423615.pdf

Data publikacji:

2014

Wydawca:

Lubuskie Towarzystwo Naukowe

Tematy:

family health
pregnant woman
premature birth
pro-health behaviour
health
promotion
ontogenesis
zdrowie rodziny
kobieta w ciąży
poród przedwczesny
zachowania zdrowotne
promocja zdrowia
ontogeneza

Opis:

Introduction. Progressing medicalization of social life more and more influences maternity. As a result, pregnant women are not enough aware of the role of their health-related behaviour which influences the course of pregnancy and the infant’s health condition. Mothers’ lifestyle is particularly essential in the process of shaping health opinions and behaviour in the offspring. Objective. The objective of the research was to evaluate selected health-related behaviour in pregnant women in relation to the prematurely born infant’s health condition as well as to family upbringing concerning health care. Material and method. Test group consisted of 65 women in confinement and 65 prematurely born infants. The authors used a questionnaire which concerned retrospective evaluation of health-related behaviour in pregnant women as well as an analysis of medical documentation related to infants’ health condition. Results. In the lifestyle of tested women both advantageous and isadvantageous healthrelated behaviour was observed. The majority of tested women avoided harmful substances during pregnancy, however, it is highly alarming that they engaged in a very little amount of physical exercise and were exposed to a number of stressful situations. Participation in antenatal classes was not very popular among tested women. Conclusions. The promotion of procreation health care should be directed at shaping responsibility in future mothers concerning their own and their offspring’s health as well as at preparing women to the social role of mothers. Actions should still be taken concerning elimination of risk factors that are responsible for premature birth as well as actions focused on educating future mothers about family planning and proper approach to pregnancy and motherhood.
Wprowadzenie. Postępująca medykalizacja życia społecznego w coraz większym stopniu obejmuje macierzyństwo. W efekcie kobiety w ciąży nie zawsze w dostatecznym stopniu dostrzegają rolę swoich zachowań zdrowotnych, które wpływają na przebieg ciąży i stan zdrowia noworodka. Styl życia matek jest ważny także w procesie kształtowania u potomstwa poglądów i zachowań w zakresie zdrowia. Cel. Celem pracy była ocena wybranych zachowań zdrowotnych kobiet w ciąży, w kontekście stanu zdrowia i rozwoju noworodka przedwcześnie urodzonego oraz rodzinnej socjalizacji w zakresie zdrowia. Materiał i metoda. Grupę badawczą stanowiło 65 położnic oraz 65 noworodków urodzonych przedwcześnie. Zastosowano technikę ankiety dotycząca retrospektywnej oceny zachowań zdrowotnych w czasie ciąży oraz analizę dokumentacji medycznej w zakresie stanu zdrowia noworodków. Wyniki. W stylu życia badanych kobiet w ciąży dostrzega się zarówno korzystne, jak i niekorzystne zachowania związane ze zdrowiem. Większość badanych kobiet w ciąży unika zażywania używek, natomiast zdecydowanie niepokojąca jest bardzo niska aktywność fizyczna wśród respondentek oraz duże narażenie na czynniki stresowe. Udział w zajęciach w szkole rodzenia jest mało rozpowszechniony wśród badanych kobiet. Wnioski. Promocja zdrowia prokreacyjnego powinna dotyczyć kształtowania odpowiedzialności przyszłych matek za zdrowie własne i potomstwa oraz socjalizacji kobiet do roli matki. Należy w dalszym ciągu rozszerzać działania na rzecz eliminacji czynników ryzyka porodów przedwczesnych oraz uświadamiać przyszłe matki w zakresie planowania rodziny i właściwego podejścia do ciąży i macierzyństwa.

Źródło:

Rocznik Lubuski; 2014, 40, 2; 275-287
0485-3083

Pojawia się w:

Rocznik Lubuski

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

Zmień widok

• na półce

Skocz do pozycji: 49.

Tytuł:

Sprawności dialogowe w autyzmie.Wyniki badań dzieci 6–7-letnich w normie intelektualnej
Dialogue Skills in Autism. Test Results of 6-7-Year-Old Children in the Intellectual Norm

Autorzy:

Saj, Magdalena

Powiązania:

https://bibliotekanauki.pl/articles/1938537.pdf

Data publikacji:

2021-06-02

Wydawca:

Polskie Towarzystwo Logopedyczne

Tematy:

spektrum zaburzeń autystycznych
ontogeneza mowy
zaburzenia mowy
struktura dialogu
diagnoza logopedyczna
autism spectrum disorders
ontogenesis of speech
speech disorders
structure of dialogue
speech therapy diagnosis

Opis:

Sprawności dialogowe są wykładnikiem społecznego i komunikacyjnego rozwoju dziec-ka. Podstawowym problemem w funkcjonowaniu dzieci autystycznych jest budowanie naprze-miennych relacji społecznych i komunikowanie się z innymi, czyli rozwój sprawności dialogo-wych. W artykule przedstawiono wyniki badania wypowiedzi dialogowych współtworzonych przez 6- i 7-letnie dzieci z autyzmem pozostające w normie intelektualnej. Problemy badawcze dotyczyły tego, czy dzieci autystyczne współtworzą dialog, czy respektują naprzemienność ról nadawcy i od-biorcy, czy realizują językowe reguły społeczne, sytuacyjne i pragmatyczne, czy współtworzone przez nie dialogi są spójne na poziomie formalnym, semantycznym i pragmatycznym. Ocena spraw-ności dialogowej wykazała, że dzieci autystyczne mają znaczne ograniczenia, ale też istotny poten-cjał w zakresie możliwości konwersacyjnych. Wyniki badań wskazują na potrzebę oceny sprawno-ści dialogowej w diagnozowaniu zaburzeń rozwoju mowy.
Dialogic skills are an interpretation of the child’s social and communicative development. The basic problem in functioning of autistic children is building alternate social relations and com-municating with others, i.e. the development of dialogic skills. The article presents the results of a study of dialogic utterances co-created by 6- and 7-year-old children with autism remaining in the intellectual norm. The research problems included the following issues: whether autistic children co-create dialogues; whether they respect the alternation of the roles of both sender and receiver; whether they implement the linguistic social, situational and pragmatic rules; whether the dialogues they co-create are coherent at the formal, semantic and pragmatic level. The evaluation of dialogue proficiency revealed that autistic children have significant limitations, but also significant potential in conversational abilities. The results of this study indicate the need for dialogue proficiency evaluation in the diagnosis of speech development disorders.

Źródło:

Logopedia; 2020, 49, 2; 55-72
0459-6935

Pojawia się w:

Logopedia

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

Zmień widok

• na półce

Skocz do pozycji: 50.

Tytuł:

Pneumaticity and soft-tissue reconstructions in the neck of diplodocid and dicraeosaurid sauropods

Autorzy:

Schwarz, D
Frey, E.
Meyer, C.A.

Powiązania:

https://bibliotekanauki.pl/articles/22875.pdf

Data publikacji:

2007

Wydawca:

Polska Akademia Nauk. Instytut Paleobiologii PAN

Tematy:

Dicraeosauridae
pneumaticity
cervical ligament
morphology
dicraeosaurid sauropod
diplodocid sauropod
sauropod
Diplodocidae
body length
muscle
ontogenesis
tomography
soft tissue reconstruction
cervical musculature
vertebral pneumaticity
paleontology
functional morphology

Opis:

The axial soft−tissue system in the neck of Dicraeosauridae and Diplodocidae, including pneumatic diverticula, ligaments, and muscles, is reconstructed on the basis of phylogenetic and functional morphological comparisons with extant crocodylians and birds and compared with other soft−tissue reconstructions for sauropods. Bifurcation of the neural spines separated the paired supraspinal ligament into two sheets. A paired interspinal septum was attached to the cranial and caudal margins of the neural spines. The dorsal and the lateral portions of the cervical musculature must have been strongly segmented, whereas the laterocostal portion was divided with one myoseptum per vertebral segment. The hypaxial cervical muscle was most probably small and only poorly segmented. In Diplodocidae and Dicraeosauridae, the distribution of external pneumatic structures is similar, whereas only Diplodocidae possess intraosseous pneumatic structures. Supravertebral pneumatic diverticula are reconstructed for both groups, which, together with dorsal ligaments filled the gap between the metapophyses of bifurcate neural spines. Comparisons between the vertebrae of juvenile and adult diplodocids strongly indicate that pneumatisation proceeded from the supramedullary diverticula into the neural arch and the neural spine. The regular branching pattern of the pneumatic cavities as well as the vertical I−beam construction of the vertebral corpora is interpreted as a consequence of the biomechanical constraints of the vertebral corpora in diplodocids. These reconstructions form the ground for functional morphological considerations in Diplodocidae and Dicraeosauridae while addressing the possible mechanical consequences of pneumatic structures for the integrity of the support system of the neck.

Źródło:

Acta Palaeontologica Polonica; 2007, 52, 1
0567-7920

Pojawia się w:

Acta Palaeontologica Polonica

Dostawca treści:

Biblioteka Nauki

/5

Artykuł

Zmień widok

• na półce