نتایج جستجو برای: plant covers
تعداد نتایج: 427683 فیلتر نتایج به سال:
Protected areas (PAs) are often considered the most important biodiversity conservation areas in national plans, but PAs often do not represent national-scale biodiversity. We evaluate the current conservation status of plant biodiversity within current existing PAs, and identify potential additional PAs for South Korea. We modeled species ranges for 2,297 plant species using Multivariate Adapt...
OBJECTIVE To determine the effectiveness of using a disinfectant mat filled with a peroxygen compound to prevent mechanical transmission of bacteria via contaminated footwear between the food animal ward and common breezeway of a veterinary teaching hospital. DESIGN Observational study. SAMPLE POPULATION Shoe soles of individuals entering and exiting from the ward. PROCEDURES A mat filled...
We call a ring $R$ right generalized semiperfect if every simple right $R$-module is an epimorphic image of a flat right $R$-module with small kernel, that is, every simple right $R$-module has a flat $B$-cover. We give some properties of such rings along with examples. We introduce flat strong covers as flat covers which are also flat $B$-covers and give characterizations of $A$-perfe...
abstract objective: the current study summarizes the updated information concerning the ethnopharmacology, phytochemistry, and pharmacology of otostegia persica boiss. (lamiaceae), an endemic medicinal plant in south and southeast of iran. materials and methods: information was collected through bibliographic investigation from scientific journals, books, theses, reports, and electronic search ...
A non-abelian finite group is called sequenceable if for some positive integer , is -generated ( ) and there exist integers such that every element of is a term of the -step generalized Fibonacci sequence , , , . A remarkable application of this definition may be find on the study of random covers in the cryptography. The 2-step generalized sequences for the dihedral groups studi...
Landfill sites are responsible for 6-12% of global methane emission. Methanotrophs play a very important role in decreasing landfill site methane emissions. We investigated the methane oxidation capacity and methanotroph diversity in lysimeters simulating landfill sites with different plant vegetations. Methane oxidation rates were 35 g methane m-2 day-1 or higher for planted lysimeters and 18 ...
Vegetation diversity assessment in tropical forests have mostly been concentrated on tree species than other plant life forms, because tree species diversity is an important aspect of forest ecosystem structure and fundamental to tropical forest biodiversity. Tropical forests, the major repository of biodiversity, are undergoing rapid fragmentation and degradation all over the world [1]. These ...
The science, this section-journal of Frontiers in Plant Sciences will be covering at great breadth and depth, aims at linking plant responses with the environment. The environmental influences are manifold and include both abiotic and biotic ones. The first include physical and chemical influences, the latter include plant–plant, plant–animal, plant–microbe (incl. virus) interactions. The plant...
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