نتایج جستجو برای: tribe
تعداد نتایج: 5216 فیلتر نتایج به سال:
Pseudorandom function tribe ensembles are pseudorandom function ensembles that have an additional collision resistance property: almost all functions have disjoint ranges. We present an alternative to the construction of pseudorandom function tribe ensembles based on oneway permutations given by Canetti, Micciancio and Reingold [7]. Our approach yields two different but related solutions: One c...
Endemic Burkitt's lymphoma (BL) is the most common paediatric malignancy in equatorial Africa and was originally shown to occur at high-incidence rates in regions where malaria transmission is holoendemic. New ecological models of malaria that are based on both parasite prevalence and disease have been described. In this study, we examined district level data collected from paediatric BL cases ...
The Ticuna are an Amerindian tribe of Central Amazonas, a key location in theories of the peopling of eastern South America. The results of typing some 1760 members of the tribe with respect to 37 different genetic systems are reported, as are the results of HLA typings on a subsample of 129 persons. Salient findings include the following. (1) Except for a high frequency of LMs allele and an un...
BACKGROUND AND AIMS The genus Salvia has traditionally included any member of the tribe Mentheae (Lamiaceae) with only two stamens and with each stamen expressing an elongate connective. The recent demonstration of the non-monophyly of the genus presents interesting implications for staminal evolution in the tribe Mentheae. In the context of a molecular phylogeny, the staminal morphology of the...
Anthidiini comprise a large, diversified, and widely distributed tribe of megachiline bees. Recently, morphological molecular analyses recovered five major monophyletic groups within the tribe. For this reason, we review current classification tribe, giving status subtribe to these lineages. A new subtribe, Epanthidiina (type genus: Epanthidium Moure), is proposed for large group restricted Neo...
خانواده تفریتیده یکی از بزرگ ترین خانواده های دوبالان محسوب می شود که تقریبا 4400 گونه از آن ها از زیست بوم های مختلف در دنیا شناسایی شده اند. به افراد این خانواده مگس های میوه می-گویند زیرا اکثر گونه ها روی میوه ها و سایر اندام های حامل دانه گیاهان در حال رشد زندگی می کنند. حشرات کامل این خانواده در روی گل ها و اطراف درختان میوه مشاهده می شوند در حالی که لارو-های آن با تغذیه از گوشت میوه، باعث...
In the present paper, the genus Spazigasteroides gen. nov. (Diptera, Syrphidae), with Spazigasteroides caeruleus sp. nov. as type species, is described from China. The new genus bears the following characters: Head strongly concave posteriorly and closely appressed to thorax so that the bare postpronota are entirely hidden. Face black in ground colour. Antennae short, with basoflagellomeres sli...
Malaria is one of the most common diseases in the African population. Genetic variance in glucose dehydrogenase 6-phosphate (G6PD) in humans determines the response to malaria exposure. In this study, we aimed to analyze the frequency of two single-nucleotide polymorphisms (G202A and A376G) present in two local tribes of Sudanese Arabs from the region of the 4th Nile cataract in Sudan, the Shag...
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