Informacja

Drogi użytkowniku, aplikacja do prawidłowego działania wymaga obsługi JavaScript. Proszę włącz obsługę JavaScript w Twojej przeglądarce.

English (EN)·Polski (PL)·Yкраїнський (UK)
Przejdź do strony domowej biblioteki Centralna Biblioteka Wojskowa Link otwiera się w nowym oknie Logo biblioteki Prolib Integro - strona głównaCentralna Biblioteka Wojskowa

Wyszukujesz frazę "hypertrophy" wg kryterium: Temat

  Lista filtrów
Wyrównaj
Wyświetlanie 1-15 z 21
Tytuł:
The links between hypertrophy, reproductive potential and longevity in the Saccharomyces cerevisiae yeast
Autorzy:
Molon, Mateusz
Zadrag-Tecza, Renata
Powiązania:
https://bibliotekanauki.pl/articles/1038822.pdf
Data publikacji:
2016
Wydawca:
Polskie Towarzystwo Biochemiczne
Tematy:
yeast
lifespan
longevity
hypertrophy
Opis:
The yeast Saccharomyces cerevisiae has long been used as a model organism for studying the basic mechanisms of aging. However, the main problem with the use of this unicellular fungus is the unit of "longevity". For all organisms, lifespan is expressed in units of time, while in the case of yeast it is defined by the number of daughter cells produced. Additionally, in yeast the phenotypic effects of mutations often show a clear dependence on the genetic background, suggesting the need for an analysis of strains representing different genetic backgrounds. Our results confirm the data presented in earlier papers that the reproductive potential is strongly associated with an increase in cell volume per generation. An excessive cell volume results in the loss of reproductive capacity. These data clearly support the hypertrophy hypothesis. The time of life of all analysed mutants, with the exception of sch9D, is the same as in the case of the wild-type strain. Interestingly, the 121% increase of the fob1D mutant's reproductive potential compared to the sfp1D mutant does not result in prolongation of the mutant's time of life (total lifespan).
Źródło:
Acta Biochimica Polonica; 2016, 63, 2; 329-334
0001-527X
Pojawia się w:
Acta Biochimica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Impact of adenoid hypertrophy on the open bite in childrena
Autorzy:
Poddębniak, Justyna
Zielnik-Jurkiewicz, Beata
Powiązania:
https://bibliotekanauki.pl/articles/1397515.pdf
Data publikacji:
2019
Wydawca:
Index Copernicus International
Tematy:
adenoid hypertrophy
children
open bite
Opis:
Nasal obstruction caused by adenoid hypertrophy can lead to malocclusion. The research material consisted of children aged 7–12 years with adenoid hypertrophy qualified for adenoidectomy. On the basis of the conducted tests (laryngological, orthodontic, pediatric), the occurrence of open frontal bite in children with pharyngeal tonsil hypertrophy, in particular in boys, was confirmed in comparison to children without hypertrophy correctly breathing through the nose.
Źródło:
Polish Journal of Otolaryngology; 2019, 73, 4; 8-13
0030-6657
2300-8423
Pojawia się w:
Polish Journal of Otolaryngology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effects of eight weeks of TRX versus traditional resistance training on physical fitness factors and extremities perimeter of non-athlete underweight females
Autorzy:
Arazi, Hamid
Malakoutinia, Fatemeh
Izadi, Mani
Powiązania:
https://bibliotekanauki.pl/articles/1031661.pdf
Data publikacji:
2018
Wydawca:
PPHU Projack Jacek Wąsik
Tematy:
functional training
strength gain
weight training
hypertrophy
Opis:
Introduction: New form of suspension training (TRX) has been introduced which has the ability to develop physical fitness factors. The aim of this study was to compare the effects of eight weeks of resistance training by traditional and TRX methods on physical fitness factors and extremities perimeter of non -athlete underweight girls. Material and methods: Thirty non -athlete underweight female students qualified with an average age of 23±1.64 years, weight of 43.53±0.28 kg, height of 162.66±6.6 cm and BMI of 16.31±0.2 kg /m 2 were selected and randomly assigned into three groups of 10 subjects (traditional, TRX and control). Participants performed training of 3 sessions per week for eight weeks. Before and after the period of training, physical fitness variables including muscular strength and endurance, flexibility, thigh and arm circumferences were measured. Results: The results showed that both forms of training had a significant effect on muscular strength and endurance. There was no significant difference in flexibility and thigh and arm circumferences. Conclusion: It can be concluded, that the traditional and TRX training have created almost same improvements in physical fitness factors, so TRX training can be considered an efficient choice to do alongside traditional training or as its alternative in order to earn desired training achievements. It is noteworthy that when training goal is to enhance muscular strength and endurance especially in upper -body, TRX training appears to be accompanied by greater gains compared to traditional resistance training.
Źródło:
Physical Activity Review; 2018, 6; 73-80
2300-5076
Pojawia się w:
Physical Activity Review
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Functional strength exercise and blood-flow restriction protocols: a systematic review
Autorzy:
Hernandez, Nicole J.
Myers, Bradley J.
Feito, Yuri
Bunn, Jennifer A.
Powiązania:
https://bibliotekanauki.pl/articles/1030915.pdf
Data publikacji:
2020
Wydawca:
Uniwersytet Szczeciński. Wydawnictwo Naukowe Uniwersytetu Szczecińskiego
Tematy:
arterial occlusion
low intensity
muscle hypertrophy
resistance training
Opis:
Objective: To assess current literature focused on the influence of functional training with blood flow restriction (BFR) on muscular adaptation in adults below the age of 65 years. Methods: A systematic literature search was performed with the following databases: PubMed, CINAHL Complete EBSCOhost, and ScienceDirect. Two researchers filtered the articles according to the criteria and quality, supported by the Consolidated Standards of Reporting Trials (CONSORT) tool. Studies were limited to those with participants with a mean age between18 and 65 years. Articles were peer-reviewed, available in English, and utilized either multi-joint resistance exercises or functional exercise as the intervention. Results: The search yielded 16 studies on uninjured, older adult, injured and athletic subjects. Regardless of the population, the studies tended to favor BFR training for improvements of strength, but this was highly dependent on cuff pressure and training load. Conclusions: Current literature suggests that BFR with functional and or multi-joint strength training is successful in improving strength, hypertrophy, function and in pain reduction. Favorable results with functional BFR included procedures using relative and well-controlled occlusion pressure. More research is necessary to understand the effect of BFR on self-reported outcomes and hypertrophy in athletic and older adults.
Źródło:
Central European Journal of Sport Sciences and Medicine; 2020, 31, 3; 47-58
2300-9705
2353-2807
Pojawia się w:
Central European Journal of Sport Sciences and Medicine
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Breast hypertrophy, forward head posture, neck and shoulder pain-related disabilities and selected anthropometrics variables of female undergraduate students
Autorzy:
Akodu, Ashiyat Kehinde
Oti, Temiloluwa Grace
Lawal, Abdulrazzaq Oluwagbemiga
Powiązania:
https://bibliotekanauki.pl/articles/2049188.pdf
Data publikacji:
2022-03-30
Wydawca:
Uniwersytet Rzeszowski. Wydawnictwo Uniwersytetu Rzeszowskiego
Tematy:
breast hypertrophy
craniovertebral angle
neck pain
shoulder pain
Opis:
Introduction and aim. Large breast sizes frequently contribute to women presenting with severe pain symptoms. This study determined the association between breast hypertrophy, forward head posture (FHP), neck and shoulder pain related disabilities and selected anthropometric variables of female undergraduate students of College of Medicine, University of Lagos. Material and methods. A cross-sectional analytical study was conducted among 89 female undergraduate students (mean age = 21.45±1.29 years) with breast hypertrophy (cup size D and above). Breast cup sizes, neck and shoulder pain related disabilities, forward head posture were measured using a measuring tape, neck pain disability scale, shoulder pain disability index and craniovertebral angle (CVA) using photography method. Results. The prevalence of forward head posture among the participants was 43(48.3%). Twenty-eight (31.3%) participants had a “DD” cup size, twenty-six (29.2%) participants had a “DDD” cup size. Sixty-five (73%) of the participants had neck pain related disabilities and 10 (11.2%) of the participants had shoulder pain related disabilities. There was association among weight, forward head posture (p=0.027) and breast hypertrophy (p=0.016). Conclusion. Neck, shoulder pain related disabilities, and forward head posture is prevalent among undergraduates with breast hypertrophy and weight has an influence on forward posture and breast hypertrophy.
Źródło:
European Journal of Clinical and Experimental Medicine; 2022, 1; 93-101
2544-2406
2544-1361
Pojawia się w:
European Journal of Clinical and Experimental Medicine
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Complications in the early adaptation period of neonates of mothers with gestational diabetes mellitus
Autorzy:
Setlak, Marcin
Radosz, Patrycja
Radwan, Aneta
Okoń, Aneta
Klinicka, Paulina
Górny, Agata
Powiązania:
https://bibliotekanauki.pl/articles/1179541.pdf
Data publikacji:
2017
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
early adaptation period
gestational diabetes mellitus
hyperbilirubinaemia
hypertrophy
hypotrophy
Opis:
Diabetes is one of the common complications during pregnancy. Insulin-dependent diabetes, lasting from childhood, is an outcome of 0,5% of pregnancies, while significantly more pregnant women is diagnosed with gestational diabetes. It is believed to be a risk factor of more frequent occurence of neonatal complications. The aim of our research was to present the most common complications in the early adaptation period of diabetic mothers’ neonates. Retrospective research included 222 neonates of mothers with GDM that were hospitalized in the Neonatal Unit in Katowice from 2009 to 2017. In the study group 199 newborns were born by caesarean section and 23 by natural labour. 23 (10,36%) neonates had features of hypertrophy, whereas 30 (13,51%) – hypotrophy. 33 children (14,86%) have been diagnosed with carbohydrate disorders. Complications in the early adaptation period occurred in 44,1% of neonates and hyperbilirubinaemia was the most frequent (55,1%). Among the developmental anomalies, the most common was the congenital heart disease - 10.81% of newborns. Complications in the early adaptation period occur often in diabetic mothers' neonates, in particular: carbohydrate disorders, pathological jaundice and PIVH features in additional examinations. 10,81% of neonates have been diagnosed with non-critical heart disease.
Źródło:
World Scientific News; 2017, 76; 183-189
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Which diagnostic method should be used in which age interval in the diagnosis of adenoid hypertrophy?
Którą z metod diagnostycznych należy stosować w celu rozpoznawania przerostu migdałka gardłowego u dzieci w poszczególnych grupach wiekowych?
Autorzy:
Kaya, Kamil Hakan
Bilece, Zeki Tolga
Acıpayam, Harun
Koçak, Hasan Emre
Ulusoy, Hüseyin Avni
Keskin, Mehmet
Powiązania:
https://bibliotekanauki.pl/articles/1399795.pdf
Data publikacji:
2018
Wydawca:
Index Copernicus International
Tematy:
Adenoid hypertrophy
flexible
endoscopy
lateral nasopharynx X-ray
nasopharyngoscopy
Opis:
Aim: This study aims to determine the age interval for which the flexible nasopharyngoscopy (FNP) and lateral nasopharyngeal X-ray radiography (LNX) used in the diagnosis of adenoid hypertrophy more effectively in a pediatric population. Study Design: Prospective Cohort Study. Materials and Methods: 281 pediatric patients (1 to 15 years old) who were admitted to our ENT outpatient clinic with the complaints of nasal obstruction, snoring, sleep apnea through April 2016 and February 2017 and who were examined with FNP with the pre-diagnosis of adenoid hypertrophy were included in our study. All FNP examinations were evaluated by a single physician. The degree of choanal obstruction was recorded as percentage (%) with the help of the adenoid tissue image. The patients were divided into four groups according to the quality of the endoscopic examination performed during FNP examination; optimal assessment (group-1), assisted optimal assessment (group-2), assisted suboptimal assessment (group-3), and inability to assess despite assistance (group-4). LNX was performed for the re-evaluation of adenoid tissue in the patients in Group-3 and 4. Statistical analysis was performed among the groups according to the ages of the patients. Results: Optimal images were obtained with FNP in the patients aged between 1 and 2 years and 8-15 years and the expected images were obtained for choanal obstruction. However, no image could be obtained with FNP for assessment of choanal obstruction in more than 30% of patients between the ages of 3 and 8 years (31.2% and 33.3%, respectively), also in more than 50% of the patients who were 4,5,6 and 7 years old (60.6%, 56.7%, 55.8%, 66 , 6%, respectively). For this reason, their degrees of choanal obstruction were determined with LNX. Conclusion: For the optimal assessment of adenoid hypertrophy, we suggest that using LNX for the pediatric patients who are 4, 5, 6 and 7 years old and using FNP for the other age groups are more appropriate methods respectively in order not to disturb the polyclinic process of physician and for patient compliance.
Źródło:
Polski Przegląd Otorynolaryngologiczny; 2018, 7, 3; 50-54
2084-5308
2300-7338
Pojawia się w:
Polski Przegląd Otorynolaryngologiczny
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Pour le décryptage de traces expressionnistes dans l’œuvre d’Isidore Ducasse
Autorzy:
Ziółkowski, Sebastian
Powiązania:
https://bibliotekanauki.pl/articles/20874660.pdf
Data publikacji:
2023
Wydawca:
Uniwersytet Gdański. Wydawnictwo Uniwersytetu Gdańskiego
Tematy:
Lautréamont
expressionism
antagonism
auctorial hypertrophy
exaggeration
expressionnisme
antagonisme
hypertrophie auctoriale
exagération
Opis:
This paper aims to highlight the resemblances existing between the poetic art by Isidor Ducasse (Lautréamont) and the poetic and aesthetic realisations of some expressionist authors. We have mainly analysed the concept of antagonism which seems to be a cardinal component of both the Lautréamont’s poetics and most expressionist works. Another part of our analysis is dedicated to the hypertrophy of the author’s I instance, emblematic in the Lautréamont’s work, reminding the expressionist principle of irradiation of the author’s I. Furthermore, we have analysed the principle of exaggeration, so much visible in Chants de Maldoror. It aims an antinaturalistic derealisation of the poetic universe as well as a caricatured painting of the political and sociological reality. All those aspects enable some sociocritical participation of the literary work in a changing world.
Źródło:
Cahiers ERTA; 2023, 34; 227-245
2300-4681
Pojawia się w:
Cahiers ERTA
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Badania skuteczności funkcjonowania korytowego systemu podczyszczającego zastosowanego na rzece Młynówka (województwo lubuskie)
Investigation of the effectiveness of the cleaning flume system applied on the Młynówka River (Lubusz voivodeship)
Autorzy:
Bonisławska, M.
Rybczyk, A.
Nędzarek, A.
Czerniejewski, P.
Tórz, A.
Łopata, M.
Powiązania:
https://bibliotekanauki.pl/articles/400804.pdf
Data publikacji:
2018
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
hypertrofia
oczyszczanie wstępne
ciek wodny
fosfor
azot
hypertrophy
pretreatment plant
watercourse
phosphorus
nitrogen
Opis:
Przeprowadzono roczną ocenę funkcjonowania systemu filtrów wypełnionych kształtkami z polipropylenu i keramzytem, usytuowanych w korycie rzeki, których zadaniem była redukcja zawiesin ogólnych oraz biogenów w wodzie przed jej odprowadzeniem do śródmiejskiego jeziora. Wykazano, że z powodu złej konserwacji i małej ilości zabiegów czyszczących, skuteczność systemu znacznie spadła w stosunku do okresu prawidłowej eksploatacji. Dotyczyło to przede wszystkim wyczerpania możliwości zatrzymywania głównego pierwiastka biogennego – fosforu. W okresie monitorowania obiekt utrzymał zdolność do redukcji zanieczyszczeń organicznych, zawiesin i azotu.
An annual assessment pertaining to the functioning of the filter systems filled with polypropylene and gravelite profiles, located in the river bed, to reduce total suspensions and biogenic compounds in the water before it was directed to the city lake, was carried out. It has been shown that due to poor maintenance and a small number of cleaning operations, the efficiency of the system has decreased considerably, comparing to the period of correct operation. This was mainly related to the exhaustion of the ability to retain the main biogenic element – phosphorus. Througout the monitoring period, the facility retained the ability to reduce organic pollutants, suspended solids and nitrogen.
Źródło:
Inżynieria Ekologiczna; 2018, 19, 3; 52-61
2081-139X
2392-0629
Pojawia się w:
Inżynieria Ekologiczna
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Rhinological factors predisposing to headaches: our experience
Autorzy:
Tretiakow, Dmitry
Skorek, Andrzej
Powiązania:
https://bibliotekanauki.pl/articles/1197574.pdf
Data publikacji:
2021-05-25
Wydawca:
Gdański Uniwersytet Medyczny
Tematy:
nasal septum deviation
Haller cells
concha bullosa
nasal turbinate hypertrophy
headaches
nasal sinus
treatment
Opis:
Background: This study aimed to present the correlation between headaches and anatomical changes within the nasal cavity and paranasal sinuses. Material and methods: This study includes a literature search and our observations of 24 patients regarding the correlation of headaches with the nasal cavity and paranasal sinus anatomy. Results: According to the literature, about 12% of the population suffer from chronic/recurrent headaches. In about 60% of patients, the headache was accompanied by different types of the anatomical structure of the nasal cavity and paranasal sinuses, which may predispose to frequent recurrence or poor control of pain. We observed 2 groups of patients. Group I consisted of 18 patients, who in according to the according to ICHD-3 classification were diagnosed with a headache or facial pain attributed to disorder of the head or neck. Group II included 6 patients with a non-diagnosed recurrent headache, who after septoplasty reported either complete headache resolution or a significantly reduced frequency of headache attacks and duration. Statistically significant differences in the surgical treatment outcomes between patients before and after therapy were observed (p = 0,00001). Conclusion: Several anatomical changes can predispose or cause recurrent headaches. In most cases, they require surgical intervention.
Źródło:
European Journal of Translational and Clinical Medicine; 2021, 4, 1; 50-56
2657-3148
2657-3156
Pojawia się w:
European Journal of Translational and Clinical Medicine
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Electrocardiographic history of pulmonary arterial hypertension – from diagnosis, through pregnancy, to lung transplantation
Obraz elektrokardiograficzny tętniczego nadciśnienia płucnego – od diagnozy poprzez ciążę do przeszczepienia płuc
Autorzy:
Bula, Karolina
Grabka, Marek
Mizia-Stec, Katarzyna
Powiązania:
https://bibliotekanauki.pl/articles/11542754.pdf
Data publikacji:
2023-08-17
Wydawca:
Śląski Uniwersytet Medyczny w Katowicach
Tematy:
electrocardiography
pulmonary arterial hypertension
right ventricular hypertrophy
elektrokardiografia
tętnicze nadciśnienie płucne
przerost prawej komory serca
Opis:
The frequency and nature of electrocardiographic changes in patients with pulmonary hypertension varies significantly depending on the severity of the illness. In mild cases, electrocardiogram (ECG) may be normal. We present the consecutive ECGs of a patient with pulmonary arterial hypertension (PAH) in the 5-year course of the disease – from diagnosis to lung transplantation. The described case shows the variability of ECG changes in correlation with the clinical state of the patient. The observed ECG abnormalities in PAH are reversible and in the presented case ECG normalized after lung transplantation.
Częstość i charakter zmian w zapisach elektrokardiograficznych u pacjentów z nadciśnieniem płucnym znacząco różni się zależnie od ciężkości choroby. U pacjentów z łagodnym nadciśnieniem płucnym zapis elektro-kardiograficzny (EKG) może być prawidłowy. W niniejszej pracy prezentujemy kolejne zapisy EKG pacjentki z tętniczym nadciśnieniem płucnym (pulmonary arterial hypertension – PAH) w 5-letnim okresie choroby – od postawienia diagnozy aż do przeszczepienia płuc. Opisany przypadek pokazuje różnorodność zmian w zapisach EKG, których nasilenie korelowało ze stanem klinicznym pacjentki. Obserwowane nieprawidłowości w zapisach EKG w przypadku PAH są odwracalne i w prezentowanym przypadku doszło do ich normalizacji po przeszczepieniu płuc.
Źródło:
Annales Academiae Medicae Silesiensis; 2023, 77, 1; 128-136
1734-025X
Pojawia się w:
Annales Academiae Medicae Silesiensis
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Úvahy o hodnote krízy a o kríze hodnôt
Considerations on the Value of the Crisis and the Crisis of Values
Rozważania o wartości kryzysu i kryzysie wartości
Autorzy:
Nemec, Rastislav
Powiązania:
https://bibliotekanauki.pl/articles/1371183.pdf
Data publikacji:
2019-01-20
Wydawca:
Akademia Katolicka w Warszawie
Tematy:
kryzys
społeczeństwo
racjonalizm
hipertropia rozumu
duchowe podstawy
crisis
society
economics
rationalism
hypertrophy of reason
spiritual foundations
Opis:
The term “crisis” is often considered as synonymous with the decline of economic and social values. However, the essence of this concept goes much deeper and beyond its social and political approaches. The essence of crisis reaches the interior of a human being and its values. According to Jan Patočka, every human being must experience some kind of crisis that naturally leads to disappointment. However, from there, may also be born a great expectation for hope, which is a sign of our inner, spiritual foundation that we must find in ourselves.
Termin „kryzys” często uważany jest za równoznaczny z upadkiem wartości ekonomicznych i społecznych. Jednak istota tego pojęcia sięga znacznie głębiej i wykracza poza jego społeczne i polityczne ujęcia. Istota kryzysu sięga wnętrza człowieka i jego wartości. Według Jana Patočka, każda istota ludzka musi doświadczyć pewnego kryzysu, który w naturalny sposób prowadzi do rozczarowania. Jednak zrodzić się może z niego również wielkie oczekiwanie na nadzieję, która jest znakiem naszej wewnętrznej, duchowej podstawy, którą musimy w sobie odnaleźć. Celem artykułu jest ukazanie rozważań Jana Patočka o wartości kryzysu i kryzysie wartości.
Źródło:
Studia Bobolanum; 2019, 30, 1; 115-124
1642-5650
2720-1686
Pojawia się w:
Studia Bobolanum
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Discoloured seeds of amaranth plant infected by Alternaria alternata: physiological, histopathological alterations and fungal secondary metabolites associated or registered
Autorzy:
Noelting, M.C.
Sisterna, M.
Lovisolo, M.
Molla-Kralj, A.
Lori, G.
Sandoval, M.C.
Sulyok, M.
Molina, M.C.
Powiązania:
https://bibliotekanauki.pl/articles/65891.pdf
Data publikacji:
2016
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
seed
pathology
amaranth
plant infection
Alternaria alternata
physiological alteration
histopathological alteration
fungal metabolite
secondary metabolite
hypertrophy
Opis:
In the present study the aspects of discolouration that could influence both the production and consumption of amaranth were analyzed with the objectives to identify the presence of Alternaria alternata on seeds, to analyze possible changes in the anatomy of seed tissues and to detect the presence of fungal secondary metabolites. Component plating, histopathological and mycological analyses on discoloured seeds allowed i) location of propagules of A. alternata in all seminal components; ii) observation of hypertrophies in perisperm and embryo and iii) determination of several fungal secondary metabolites, mainly high concentrations of tenuazonic acid. To our knowledge, the information presented in this paper, related to physiological, histopathological changes and fungal secondary metabolites on discoloured seeds of (Amaranthus mantegazzianus syn. A. caudatus subsp. mantegazzianus (Pass) Hanelt affected by A. alternata, is the first worldwide record.
Źródło:
Journal of Plant Protection Research; 2016, 56, 3
1427-4345
Pojawia się w:
Journal of Plant Protection Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Assessment of Restored Water Bodies in a River-Lake System Based on Phosphorus Concentrations
Ocena funkcjonowania zrenaturyzowanych zbiorników wodnych należących do systemu rzeczno--jeziornego na podstawie stężeń fosforu
Autorzy:
Sobczyńska-Wójcik, K.
Rafałowska, M.
Powiązania:
https://bibliotekanauki.pl/articles/388661.pdf
Data publikacji:
2011
Wydawca:
Towarzystwo Chemii i Inżynierii Ekologicznej
Tematy:
system rzeczno-jeziorny
jeziora polimiktyczne
produkcja pierwotna
hipertrofia
river-lake system
polymictic lakes
primary production
hypertrophy
Opis:
Three water bodies restored around 30 years ago were studied: Lake Nowe Wloki, Lake Setalskie Duze and Lake Setalskie Male, connected by the Setal Stream into a single river-lake system in the Olsztyn Lakeland, approximately 25 km north of the city of Olsztyn, in the District of Dywity. The objective of this study was to evaluate the functioning of three water bodies in a river-lake system restored around 30 years ago. Particular attention was paid to water quality and the trophic status of the analyzed lakes, assessed based on seasonal changes in phosphorus concentrations. A river-lake system comprising restored water bodies in rural areas reduces the concentrations of biogens migrating from the catchment area, thus minimizing the effects of potential eutrophication in larger rivers and other water bodies to which the system’s watercourses evacuate. As regards lake inflows, a drop in total phosphorus levels was noted after passage through the water body, and high concentrations of total P resulted from the polymictic character of the studied lakes. The inflows to water bodies that form a chain system supply substantial amounts of total P to the lakes, leading to the retention of excessive phosphorus concentrations and speeding up processes which deteriorate water quality and lake functioning. Over a three-year experimental period, the average concentrations of phosphorus, – an element limiting primary production – varied from 0.22 to 0.34 mg Ptotal dm–3 in the water bodies within the studied river-lake system. The absence of water stratification (hypolimnion) contributed to intensive phosphorus recirculation and very high trophy levels in the examined lakes. According to Nurnberg, the total phosphorus concentrations determined in the spring are indicative of their hypetrophy.
Badaniami objęto trzy zbiorniki wodne odtworzone przed około 30 laty: jezioro Nowe Włóki, jezioro Setalskie Duże i jezioro Setalskie Małe, połączone Strugą Setal w jeden system rzeczno-jeziorny, położone na Pojezierzu Olsztyńskim około 25 km na północ od Olsztyna w gminie Dywity. Celem pracy była ocena funkcjonowania odtworzonych przed około 30 laty zbiorników wodnych, należących do systemu rzeczno-jeziornego, ze szczególnym uwzględnienie jakości wody i stanu troficznego jezior na podstawie stężeń fosforu i jego sezonowych zmian. Istnienie systemu rzeczno-jeziornego, dzięki odtworzonym zbiornikom na terenach wiejskich pozwala na redukcję stężeń (kumulacji związków biogennych) migrujących ze zlewni, zmniejszając w ten sposób skutki potencjalnej eutrofizacji większych rzek i innych akwenów, do których cieki systemu uchodzą. W przypadku wód dopływających do jezior zaobserwowano poprawę w zakresie obniżenia stężeń fosforu ogólnego, po ich przepłynięcie przez akweny, a utrzymywanie się dużych koncentracji Pog w wodach badanych jezior należy wiązać także z ich polimiktycznym charakterem. Z dostawy zanieczyszczeń (Pog) do zbiorników układu paciorkowego wynika, iż wody dopływów wnoszą do jezior znaczne jego ilości, powodując ponadnormatywne stężenia Pog w wodzie akwenów i przyspieszając w ten sposób procesy, które pogarszają jej jakość oraz funkcjonowanie jezior. Stwierdzono, że w wodzie odtworzonych zbiorników średnie z trzech lat stężenia fosforu - pierwiastka limitującego produkcję pierwotną, mieściły się w zakresie od 0,22 do 0,34 mg Pog dm-3. Brak stratyfikacji wód (hypolimnionu), wpłynął na intensywną recyrkulację fosforu i bardzo wysoką trofię wód. Według Nurnberga wiosenne koncentracje Pog, wskazują na stan ich skrajnego przeżyźnienia czyli hipertrofii.
Źródło:
Ecological Chemistry and Engineering. A; 2011, 18, 11; 1441-1456
1898-6188
2084-4530
Pojawia się w:
Ecological Chemistry and Engineering. A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Demographic analysis of the Makkah Province for the purpose of evaluating the balance of the urban system
Autorzy:
Derbali, Amani
Farhi, Abdallah
Powiązania:
https://bibliotekanauki.pl/articles/15803607.pdf
Data publikacji:
2022-06-30
Wydawca:
Uniwersytet im. Adama Mickiewicza w Poznaniu
Tematy:
urban system
urban hierarchy
Zipf’s law
law of Beckmann
demographic macrocephaly
demographic hypertrophy
holy city of Makkah
Opis:
Reaching a well-adjusted population distribution is a major challenge for urban settlements. Various research works have been focusing on evaluating the demographic balance of urban systems worldwide. Regularities in population distribution among urban settlements have been noticed and confirmed by empirical studies in the contemporary era. These studies assert that both rank of a city in the demographic hierarchy and its population size are proportionally correlated in a balanced urban system. It has been proved that this correlation is established according to mathematical theories that have been scientifically identified and proved through in-depth research. This article aims to check the conformity of the population distribution of the Makkah Province to two main demographic, organisational theories. In this article, there will be an attempt to measure the variations, evaluate and assess the deviations, interpret the result thereof, and then compare the outcomes of the two methods applied on the Makkah Province.
Źródło:
Quaestiones Geographicae; 2022, 41, 2; 49-65
0137-477X
2081-6383
Pojawia się w:
Quaestiones Geographicae
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 21

Ta witryna wykorzystuje pliki cookies do przechowywania informacji na Twoim komputerze. Pliki cookies stosujemy w celu świadczenia usług na najwyższym poziomie, w tym w sposób dostosowany do indywidualnych potrzeb. Korzystanie z witryny bez zmiany ustawień dotyczących cookies oznacza, że będą one zamieszczane w Twoim komputerze. W każdym momencie możesz dokonać zmiany ustawień dotyczących cookies