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    Wyświetlanie 1-7 z 7
    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
    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:
    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:
    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:
    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:
    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
      Wyświetlanie 1-7 z 7

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