نتایج جستجو برای: climax
تعداد نتایج: 1521 فیلتر نتایج به سال:
Members of the ciliate group of protozoans are often observed in mass cultures of rotifers. In particular, Euplotes and Vorticella are common contaminating species. In this study, I examined the effect of the ciliates Euplotes sp. and Vorticella sp. on the growth of the rotifer Brachionus rotundiformis by conducting inter-specific and tripartite-specific mixed-culture experiments. The growth of...
Background Pharmacovigilance studies are helpful to follow the use of allergen immunotherapy in clinical practice. Industrially manufactured allergen vaccines (VALERGEN) of three mite species (including the tropical species Dermatophagoides siboney and Blomia tropicalis) have been recently introduced country-wide in Cuba for asthma treatment. To assess the safety and efficacy of allergen immuno...
Compared with the numerous studies on Chiroptera in other countries only little information has been published on Nepalese bats. Status of bats in Nepal has not been identified and even not given more interest by the government body which is devoted to wildlife managements itself. In Nepal, out of 51 species recorded by CAMP in 2002, 2 are critically endangered, 1 endangered and 5 are vulnerabl...
Premise of research. Brood-site deceptive flowers use dishonest signals—especially floral odors that mimic oviposition substrates—to attract and deceive saprophilous insects to pollinate them. In this work, we recorded the pollinators of the sapromyiophilous species Jaborosa rotacea (Solanaceae) endemic to southern South America. Then, we characterized the floral volatiles of this species, and ...
Messages from social media are increasingly being mined to extract useful information and to detect trends. These can relate to matters as serious as earthquakes and wars or as trivial as haircuts and cats. Football remains one of the world’s most popular sports and events within big matches are heavily discussed on Twitter. It therefore provides an excellent case study for event detection. Her...
Quivers (directed graphs), species (a generalization of quivers) and their representations play a key role in many areas of mathematics including combinatorics, geometry, and algebra. Their importance is especially apparent in their applications to the representation theory of associative algebras, Lie algebras, and quantum groups. In this paper, we discuss the most important results in the rep...
Citation: Lyu J, Song J, Liu Y, Wang Y, Li J and Du FK (2018) Species Boundaries Between Three Sympatric Oak Species: Quercus aliena, Q. dentata, and Q. variabilis at the Northern Edge of Their Distribution in China. Front. Plant Sci. 9:414. doi: 10.3389/fpls.2018.00414 Species Boundaries Between Three Sympatric Oak Species: Quercus aliena, Q. dentata, and Q. variabilis at the Northern Edge of ...
The very rare spider species Emblyna brevidens (Kulczyñski, 1897) is known from only few sites in Europe. This article reports on the first sites of this species in Poland, found in the mid-eastern part of the country, in the Polesie National Park, during studies carried out between 1995 and 1998. Six mature females were caught in willow-birch thickets and on a flooded meadow. Available data fr...
This vignette demonstrates an analysis of the relative stabilities of 24 carboxylases from model organisms that grow optimally at different temperatures. In the chemical thermodynamic model, changes in both temperature and oxidation potential influence the relative stabilities of the proteins with an overall progression that fits with the growth temperatures of the organisms. The calculations s...
A fundamental question in ecology is how biological interactions and biogeographic processes interact to determine the biodiversity of local sites. We quantified patterns of plant species diversity on transects across elevation at 59 salt marsh sites in Georgia and 49 sites in Texas. Although these regions have similar climates and floras, we anticipated that diversity might differ because of d...
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