Results 61 to 70 of about 170,127 (368)

The Development and the Growth Features of Sprouts of Malus Orientalis Uglitzk.Species Introduced in Absheron

open access: yesInternational Journal of Secondary Metabolite, 2017
Apple is cultivated in most of the temperate regions due to the fruit’s quality, its easiness to propagate, and its natural aptitude to bear. Malus classifications differ primarily in the taxonomic level at which infrageneric groupings of species are ...
Ceyran Najafova   +2 more
doaj   +1 more source

Cognitive-matrix analysis of research on primary health care development in the Russian Federation for the period from 2012 to 2022

open access: yesКардиоваскулярная терапия и профилактика, 2023
The distribution of publications posted in the Elibrary for the period from January 1, 2012 to December 31, 2022, in the structure of a cognitive matrix of taxonomic characteristics for the analysis and assessment of primary health care in the Russian ...
S. A. Orlov   +11 more
doaj   +1 more source

Tetraconatan phylogeny with special focus on Malacostraca and Branchiopoda: highlighting the strength of taxon-specific matrices in phylogenomics

open access: yesProceedings of the Royal Society B: Biological Sciences, 2018
Understanding the evolution of Tetraconata or Pancrustacea—the clade that includes crustaceans and insects—requires a well-resolved hypothesis regarding the relationships within and among its constituent taxa. Here, we assembled a taxon-rich phylogenomic
Martin Schwentner   +3 more
semanticscholar   +1 more source

Annotated checklist of amphibians and reptiles of Qom Province, central Iran [PDF]

open access: yesIranian Journal of Animal Biosystematics, 2015
The updated checklist of amphibians and reptiles of Qom Province, Central Iran is presented. Totally 46 species, 35 genera and 17 families of reptiles and amphibians are reported in the area. The most diverse suborder is serpentes with 19 species or 41.3%
Seyed Mahdi Kazemi   +6 more
doaj   +1 more source

A generalized taxon concept [PDF]

open access: yesBotanical Journal of the Linnean Society, 1997
Abstract A generalized taxon concept (GTC) is proposed with a method for revealing and ranking difficult taxa at any level in the taxonomic hierarchy. The method is based on cluster quality, defined jointly by the compactness of a cluster's contents and its isolation from its informational neighbours.
openaire   +2 more sources

The diversity and richness of tree species of Tambang Sawah forest Kerinci-Seblat National Park Sumatra Indonesia

open access: yesJournal of Biological Researches, 2010
The conservation of tropical ecosystem is increasingly relevant as the recent global warming and climate change generate serious impacts on human life.
Agus Susatya
doaj   +1 more source

Regional invertebrate cross- and within-taxon surrogacy are scale and taxon dependent [PDF]

open access: yesTransactions of the Royal Society of South Africa, 2019
This study measured within- and cross-taxon congruence in the diversity of epigeal invertebrates (spiders, beetles and millipedes) and woody vegetation sampled at small spatial grains (0.25 ha) across a large area (30 000 km2) within the Vhembe Biosphere Reserve (VBR) in South Africa.
Michelle Hamer   +4 more
openaire   +2 more sources

Estimating morphological diversity and tempo with discrete character‐taxon matrices: implementation, challenges, progress, and future directions

open access: yes, 2016
Discrete character-taxon matrices are increasingly being used in an attempt to understand the pattern and tempo of morphological evolution; however, methodological sophistication and bespoke software implementations have lagged behind.
Graeme T. Lloyd
semanticscholar   +1 more source

Taxon Richness of “Megaviridae” Exceeds those of Bacteria and Archaea in the Ocean

open access: yesMicrobes and Environments, 2018
Since the discovery of the giant mimivirus, evolutionarily related viruses have been isolated or identified from various environments. Phylogenetic analyses of this group of viruses, tentatively referred to as the family “Megaviridae”, suggest that it ...
Tomoko Mihara   +5 more
semanticscholar   +1 more source

Illustration of Step-Wise Latent Class Modeling With Covariates and Taxometric Analysis in Research Probing Children's Mental Models in Learning Sciences

open access: yesFrontiers in Psychology, 2018
This paper illustrates two psychometric methods, latent class analysis (LCA) and taxometric analysis (TA) using empirical data from research probing children's mental representation in science learning.
Dimitrios Stamovlasis   +4 more
doaj   +1 more source

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