Informacja

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

Wyszukujesz frazę "taxonomy method" wg kryterium: Temat


Wyświetlanie 1-11 z 11
Tytuł:
Application of anatomical methods in the taxonomy of sedges [Carex L.] from the section Muehlenbergianae [L.H.Bailey] Kuk. occurring in Poland
Autorzy:
Szczepanik-Janyszek, M
Klimko, M.
Powiązania:
https://bibliotekanauki.pl/articles/878188.pdf
Data publikacji:
1999
Wydawca:
Uniwersytet Przyrodniczy w Poznaniu
Tematy:
sedge
Polska
Muehlenbergianae
anatomy
nut
stem
utricle
Carex
leaf
taxonomy
anatomical method
Opis:
This paper presents the results of the research on the anatomical structure of the stems and leaves and on the sculpture of the nuts of the sedges from section Muehlenbergianae (L.H. Bailey) Kük. The results show, that the anatomical structure of the vegetative organs cannot be an effective criterion of a taxonomical division. The most important interspecific differences occur among shapes and size of the exocarp cells, and among the presence or absence of the silica bodies on the surfaces of the cells. The greatest variation in the features listed above is observed in Carex divulsa Stokes subsp. leersii (Kneucker) W. Koch.
Praca dotyczy próby zastosowania metod anatomicznych w taksonomii roślin i sprawdzenia przydatności poszczególnych cech budowy wewnętrznej w tworzeniu podziałów systematycznych, a także w uzupełnianiu nimi opisów morfologicznych. Dotychczasowe badania prowadzone w obrębie sekcji Muehlenbergianae (L.H. Bailey) Kük., oparte na znacznej liczbie cech morfologicznych, nie dały jednoznacznych rozstrzygnięć w kwestii relacji zachodzących pomiędzy taksonami tej grupy. Badania były prowadzone na materiale zielnikowym pochodzącym z Polski północnej i południowej. Szczegółowej analizie zostały poddane cztery cechy dotyczące liści, trzy dotyczące łodygi oraz jedna związana z budową owocu. Na podstawie przeprowadzonych badań okazało się, że w przypadku łodyg i liści cechy anatomiczne nie stanowią zdecydowanego kryterium taksonomicznego. Dopiero analiza skulptury orzeszka pozwoliła na wychwycenie różnic pomiędzy taksonami. Wyróżniono pięć typów egzokarpu, z których każdy reprezentował określony takson. Jednakże dokładne i jednoznaczne określenie kryteriów, na których miałby się opierać podział taksonomiczny, wymaga dalszych badań na materiale pochodzącym z całego obszaru zasięgu opracowywanych taksonów.
Źródło:
Roczniki Akademii Rolniczej w Poznaniu. Botanika; 1999, 02
1508-9193
Pojawia się w:
Roczniki Akademii Rolniczej w Poznaniu. Botanika
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Analiza stanów składu niejednorodnej mieszaniny ziarnistej w procesie przygotowania paszy dla gołębi w warunkach przemysłowych z wykorzystaniem metody taksonomicznej
Analysis of the compositions of a non-homogenious granual mixture pigeons feed prepared under industrial conditions using the taksonomy method
Autorzy:
Królczyk, J.
Matuszek, D.
Tukiendorf, M.
Powiązania:
https://bibliotekanauki.pl/articles/289868.pdf
Data publikacji:
2005
Wydawca:
Polskie Towarzystwo Inżynierii Rolniczej
Tematy:
materiał ziarnisty
niejednorodna mieszanina ziarnista
pasza
gołębie
metoda taksonomiczna
granual materials
non-homogenious granual mixture
pigeons feed
taxonomy method
Opis:
W pracy zaproponowano analizę stanów składu wieloskładnikowej mieszaniny ziarnistej w procesie przygotowania paszy. Badania przeprowadzono w warunkach przemysłowych, w zakładzie zajmującym się produkcją i sprzedażą karmy dla gołębi pocztowych i rasowych. Znajomość procentowego udziału każdego z komponentów mieszaniny w zależności od kolejnych minut mieszania może posłużyć do poprawy ekonomiki procesu. Zastosowano analizę opartą na metodzie taksonomicznej pozwalającej na klasyfikacje etapów badanego procesu mieszania. Wyniki przedstawiono graficznie.
This research presents on analysis of the composition of a multi-constituent grain mixture in the feed preparation process. This research was carried out in industrial conditions, in a company which deals with the breeding and sale of mail and racing pigeons. Knowledge of the percentage of distribution of each feed component with reference to the consecutive minutes of mixing can serve to improve the economy of the process. An analysis based on the taxonomy method was executed, which allows classification of the stages of the researched mixing process. The outcomes were presented graphically.
Źródło:
Inżynieria Rolnicza; 2005, R. 9, nr 14, 14; 193-201
1429-7264
Pojawia się w:
Inżynieria Rolnicza
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A contribution to the systematics of the genus Tilia with respect to some hybrids by RAPD analysis
Autorzy:
Liesebach, H
Sinko, Z.
Powiązania:
https://bibliotekanauki.pl/articles/41216.pdf
Data publikacji:
2008
Wydawca:
Polska Akademia Nauk. Instytut Dendrologii PAN
Tematy:
Tilia
linden
taxonomy
hybrid
DNA
UPGMA method
systematics
random amplified polymorphic DNA
Szent Istvan tree
K3 tree
cluster analysis
Opis:
The putative hybrid character of two Tilia varieties selected as avenue trees (‘Szent Istvan’ and‘K3’) should be clarified for further breeding activities. Their ancestor species should be identified by a genetic comparison with reference material (Tilia cordata, T. platyphyllos, T. dasystyla, T. × euchlora, T. × europaea and others). RAPD marker data were evaluated by UPGMA cluster and neighbour-joining analysis. The genetic comparison of the two selected clones with the collection of reference material offers insights into some systematic relationships within the genus Tilia. It was supplemented by a critical discussion of methods of RAPD data evaluation for taxonomic purposes.
Źródło:
Dendrobiology; 2008, 59; 13-22
1641-1307
Pojawia się w:
Dendrobiology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Medical data integration - an algebraic approach
Autorzy:
Jankowska, B.M.
Powiązania:
https://bibliotekanauki.pl/articles/333387.pdf
Data publikacji:
2008
Wydawca:
Uniwersytet Śląski. Wydział Informatyki i Nauki o Materiałach. Instytut Informatyki. Zakład Systemów Komputerowych
Tematy:
integracja danych
metody leczenia
diagnostyka medyczna
format XML
data integration
taxonomy of concepts
tuple format
XML format
medical diagnosis
treatment method
algebra of medical concepts
Opis:
It would be difficult to find a knowledge domain in which data integration is as important as in medicine, being interested in human health and life. Firstly, medical data integration enables acquiring all the information, stored anywhere, about a patient who needs an urgent medical intervention. Secondly, thanks to the integration, we can obtain an aggregate data comprising all known, similar medical cases. In fact, the aggregate data is a source of medical knowledge and a base for formulating conclusions about hypothetical diagnoses, and methods of treating the disorder diagnosed. In the paper, it is shown that a uniform, theoretical approach for the both kinds of data integration: horizontal and vertical, respectively, is possible. It is an algebraic approach, joined together with the use of taxonomy of medical and related concepts. Having the algebra of the concepts, we can as well check the permissibility of data integrating (by means of the subsumption relation, defined on the set of all concepts), as describe the semantics of this process (by means of the usual algebraic operations of sum and intersection).
Źródło:
Journal of Medical Informatics & Technologies; 2008, 12; 241-247
1642-6037
Pojawia się w:
Journal of Medical Informatics & Technologies
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Malus x oxysepala (M. domestica Borkh. x M. sylvestris Mill.) - a new spontaneous apple hybrid
Autorzy:
Czarna, A.
Nowinska, R.
Gawronska, B.
Powiązania:
https://bibliotekanauki.pl/articles/58374.pdf
Data publikacji:
2013
Wydawca:
Polskie Towarzystwo Botaniczne
Tematy:
Malus x oxysepala
Malus domestica
Malus sylvestris
new hybrid
spontaneous hybrid
apple hybrid
hybrid
taxonomy
genetic similarity
RAPD-PCR method
Źródło:
Acta Societatis Botanicorum Poloniae; 2013, 82, 2
0001-6977
2083-9480
Pojawia się w:
Acta Societatis Botanicorum Poloniae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Zastosowanie metod taksonomicznych w analizie struktury systemu regionalnego
The use of taxonomic methods in the analysis of the structure of the regional system
Autorzy:
Czyż, Teresa
Hauke, Jan
Powiązania:
https://bibliotekanauki.pl/articles/1023198.pdf
Data publikacji:
2014-03-20
Wydawca:
Uniwersytet im. Adama Mickiewicza w Poznaniu
Tematy:
regional macrostructure
regional taxonomy
the method of the largest flow
the method of maximizing of the coefficient of determination
migration flows
subregional systems
macroregions of Poland
makrostruktura regionalna
metody taksonomii regionalnej
metoda największego przepływu
metoda maksymalizacji współczynnika determinacji
przepływy migracyjne
podsystemy regionalne
makroregiony Polski
Opis:
Celem pracy jest zastosowanie metod taksonomii numerycznej w badaniu makrostruktury regionalnej i ocena ich możliwości analitycznych. W pierwszej części pracy przedstawiono opis matematyczno-statystyczny dwóch metod: (1) metody delimitacji układów powiązań opartej na kryterium największego przepływu Nystuena i Daceya (1961), (2) metody identyfikacji istotnych relacji w systemie regionalnym na zasadzie maksymalizacji współczynnika determinacji, opracowanej przez Holmesa i Haggetta (1977). W drugiej części pracy wykorzystano równolegle proponowane metody dla określenia makrostruktury regionalnej Polski na podstawie międzyregionalnych przepływów migracyjnych. Dokonano również oceny wyników poznawczych uzyskanych w analizie makrostruktury regionalnej w aspekcie metodologicznym i empiryczno-diagnostycznym.
The aim of the paper is the use of numerical taxonomy methods in the study of the macrostructure of regional system and evaluation of their analytical capabilities. In the first part of the paper a mathematical-statistical description of two methods is presented: (1) the method of the largest flow of Nystuen and Dacey (1961), (2) the method of maximizing of the coefficient of determination, developed by Holmes and Haggett (1977). In the second part of paper the proposed methods were parallelly applied in the analysis of the Polish regional macrostructure based on interregional migration flows. The evaluation of the cognitive results in the of analysis of regional macrostructure is considered.
Źródło:
Rozwój Regionalny i Polityka Regionalna; 2014, 25; 29-45
2353-1428
Pojawia się w:
Rozwój Regionalny i Polityka Regionalna
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
AFLP analysis reveals infraspecific phylogenetic relationships and population genetic structure of two species of Aconitum in Central Europe
Autorzy:
Mitka, J.
Boron, P.
Wroblewska, A.
Baba, W.
Powiązania:
https://bibliotekanauki.pl/articles/59372.pdf
Data publikacji:
2015
Wydawca:
Polskie Towarzystwo Botaniczne
Tematy:
AFLP method
phylogenetic relationship
population structure
genetic structure
Aconitum
taxonomy
population genetics
evolution
Sudetes Mountains
Central Europe
Opis:
The genetic diversity of two Aconitum species endemic to the Carpathian Mountains and Sudetes was studied. A reticulate evolution between them was earlier postulated as an effect of secondary contact. The genetic diversity at the individual and taxonomic levels was examined across the entire geographical ranges of the taxa in 11 populations based on 247 AFLP markers found in 112 individuals in the Sudetes and Western Carpathians. The overall genetic differentiation was greater within the Sudetic A. plicatum (Fst = 0.139, P < 0.001) than within the Carpathian A. firmum (Fst = 0.062, P < 0.001), presumably due to the long-lasting geographic isolation between the Giant Mts and Praděd (Sudetes) populations of the species. Interestingly, relatively distant and presently isolated populations of A. plicatum and A. f. subsp. maninense share a part of their genomes. It could be an effect of their common evolutionary history, including past and present reticulations. The introgression among infraspecific taxa of Aconitum is common, probably as a result of seed dispersal within a distance of ca. 20 km (Mantel's r = 0.36, P = 0.01). Aconitum f. subsp. maninense had the highest genetic diversity indices: Nei's h and rarefied FAr, and divergence index DW (P < 0.05), pointing to its presumably ancient age and long-term isolation.
Źródło:
Acta Societatis Botanicorum Poloniae; 2015, 84, 2
0001-6977
2083-9480
Pojawia się w:
Acta Societatis Botanicorum Poloniae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Identifying microbes from environmental water samples
Autorzy:
Mungs, Wenfa
Powiązania:
https://bibliotekanauki.pl/articles/1153739.pdf
Data publikacji:
2015
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
biomarker
educational research
inquiry-based
mass spectrum fingerprinting
microbial ecology
microbial typing
phylogeny
ribosomal proteins
scientific method
taxonomy
Opis:
What is the microbe that we are dealing with? Whether it is cholera or anthrax, we want to know the disease-causing microorganism as quickly as possible since prompt identification of the causative organism would help control disease spread - and potentially save lives through provision of appropriate care and medication. Yet, despite the advent of rapid microbial identification tools – particularly those based on mass spectrometry – most undergraduate curricula continue to focus on culture- and nucleic acid-based identification techniques since they are widely used for detecting and identifying microbes in clinical and environmental samples. Mass spectrometry-based methods, however, have increasingly complemented traditional approaches in clinical and research laboratories - but are rarely featured in undergraduate curricula. Motivated by the desire to address the curriculum gap, the author of this study developed an inquiry-based laboratory exercise for introducing students to the operating principles and methodology of mass spectrometry-based microbial identification. By requiring students to identify microbes in environmental water samples – a real-life problem with unknown answers – the exercise piqued the students’ interest in learning, while helping to stir their curiosity through an interesting field activity in which they could put on a scientist’s hat in solving a mystery. This synopsis article summarizes a piece of published educational research and expands on the discussion of concepts underlying matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF MS)-based microbial identification. Herein, the article discusses the relative advantages and disadvantages of the pattern recognition and proteome database search approaches for analyzing mass spectra data. Additionally, the effect of general and tailored sample preparation protocols on identification accuracy is also elaborated. Finally, the pedagogical utility of field- and inquiry-based educational tools is also discussed in greater detail from a post-publication perspective. A full-length synopsis of the work and a structured abstract can be found in the accompanying PDF file, the original article being entitled: “Teaching Microbial Identification with Matrix-Assisted Laser Desorption/Ionization Time-of-Flight Mass Spectrometry (MALDI-TOF MS) and Bioinformatics Tools”.
Źródło:
World News of Natural Sciences; 2015, 2; 7-19
2543-5426
Pojawia się w:
World News of Natural Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Analysis of greenhouse gas emissions in the European Union member states with the use of an agglomeration algorithm
Autorzy:
Kijewska, A.
Bluszcz, A.
Powiązania:
https://bibliotekanauki.pl/articles/91948.pdf
Data publikacji:
2016
Wydawca:
Główny Instytut Górnictwa
Tematy:
sustainable development
mineral resources
energy
greenhouse gas emission
taxonomy
cluster analysis
agglomerative method
rozwój zrównoważony
zasoby mineralne
energia
emisja gazów cieplarnianych
taksonomia
analiza klasterów
metoda aglomeracyjna
Opis:
The use of fossil fuels as sources of energy is related to the emission of pollutants into the atmosphere. The implementation of international commitments on reducing emissions requires their continuous monitoring. The main energy resources for electricity production in the world include fossil fuels, i.e. oil, coal and natural gas, and according to projections their dominant role in the market of energy resources will persist for at least the next two decades. The aim of this article is to analyse the level of differentiation of European Union member states in terms of emissions of four greenhouse gases and to identify groups of similar countries based on these criteria. Such studies will provide information that will enrich our knowledge about the contribution of each European Union country to the emissions of greenhouse gases. This article uses a taxonomic method - cluster analysis, namely the agglomerative algorithm, which enables the extraction of objects that are similar to each other from the data and then to merge them into groups. In this way, a number of homogeneous subsets can be obtained from one heterogeneous set of objects. European Union countries make up the objects of segmentation. Each of them are described by their level of greenhouse gas emissions, such as carbon dioxide, methane, nitrogen oxides and nitrous oxides. Groups of homogeneous countries are distinguished due to total emissions and due to the level of their emissions per capita. Analysis is based on annual Eurostat reports concerning greenhouse gas emissions.
Źródło:
Journal of Sustainable Mining; 2016, 15, 4; 133-142
2300-1364
2300-3960
Pojawia się w:
Journal of Sustainable Mining
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Evaluation of environmental order level in districts of Krakow Metropolitan Area
Autorzy:
Szylar, M.
Powiązania:
https://bibliotekanauki.pl/articles/123880.pdf
Data publikacji:
2016
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
sustainability
environmental order
Wrocław taxonomy
Thorndike’s method
Kraków Metropolitan Area
Opis:
Environmental order is one of sustainability aspects. Respect for environment, rational management of its resources and protection of biological diversity are only some of the rules that should be followed in order to preserve ecological balance. The paper is aimed to show evaluation of environmental order level in 7 districts included in Krakow Metropolitan Area (in polish: krakowski obszar metrolitalny – KOM). Such evaluations together with analyses of changes of environmental order factors (and also the remaining orders which are components of sustainability) enable to monitor effects of council unit’s activities. Suggested analysis was performed on the basis of 18 factors of environmental order. The data were taken from the Local Data Bank [in Polish: Bank Danych Lokalnych (BDL)] and they concern 2014. The evaluation was carried out by classifying examined units to three types – with best average and worst preserved environmental order. This rating was made by means of two taxonomic methods – Wroclaw taxonomy and Thorndike’s method. It was stated in the research that most districts do well with preserving environmental order. However, there are units where environmental balance is unsettled. They should take immediate actions in order to improve this situation. Collective activities within cooperation of KOM districts could also give measurable improvement and result in improving balance of the whole region’s development.
Źródło:
Journal of Ecological Engineering; 2016, 17, 5; 35-42
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Financial potential analysis of forestry enterprises of Ukraine on the taxonomy method basis
Autorzy:
Ievdokymov, Viktor
Grytsyshen, Dymytrii
Oliinyk, Oksana
Dziubenko, Oleg
Yukhymenko-Nazaruk, Iryna
Powiązania:
https://bibliotekanauki.pl/articles/1538259.pdf
Data publikacji:
2021
Wydawca:
STE GROUP
Tematy:
financial potential
forestry enterprises
matrix
rating estimation
taxonomy
taxonomic analysis method
Opis:
In the article the method of analysis of financial potential using taxonomy method has been developed as well as it has been tested on the basis of empirical data of Ukrainian forestry enterprises. The application of such a method made it possible to construct a rating assessment of a complex and multifactorial economic object – the financial potential, using algorithms of systematization to multidimensional quantities. The authors present the stages of application of analytical procedures for assessing the dynamics of taxonomic indicators of financial potential as well as for constructing the rating of the suggested business entities. An innovative model of financial potential of forestry enterprises is proposed, which will allow to identify the complex of properties of an object as a basis for forming a set of analytical procedures for assessing its state. The obtained results of the analysis can serve as the basis for constructing a management strategy to optimize the financial potential of the enterprise.
Źródło:
Management Systems in Production Engineering; 2021, 1 (29); 3-13
2299-0461
Pojawia się w:
Management Systems in Production Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-11 z 11

    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