To study adaptation, it is essential to identify multiple adaptive mutations and to characterize their molecular, phenotypic, selective, and ecological consequences. Here we describe a genomic screen for adaptive insertions of transposable elements in Drosophila. Using a pilot application of this screen, we have identified an adaptive transposable element insertion, which truncates a gene and a...

We show how clustering as a general hierarchical dynamical process proceeds via a sequence of inverse cascades to produce self-similar scaling, as an intermediate asymptotic, which then truncates at the largest spatial scales. We show how this model can provide a general explanation for the behavior of several models that has been described as "self-organized critical," including forest-fire, s...

Summary I develop algorithms to facilitate Bayesian inference in structural vector autoregressions that are set-identified with sign and zero restrictions by showing the system of is equivalent a lower-dimensional space. Consequently, applicable under can be extended allow for restrictions. Specifically, extend proposed Amir-Ahmadi Drautzburg (2021) check whether identified set nonempty sample ...

conclusions the reason for difference in the detected snail genera in sampling sites may be due to various physicochemical factors. according to the current study, medically important snails exist in miangran lake and they could be a source of trematode infections for the local people. controlling measures after comprehensive studies should be applied. background some freshwater snails are acti...

This paper considers an approximation usually used when implementing Ramaswami's recursion for the stationary distribution of M/G/1-type Markov chain. The is called level-increment-truncation because it truncates level increment at a given threshold. main contribution this to present geometric convergence formula level-wise difference between respective distributions original chain and its LI t...

The molluscicidal effects of Talinum triangulare from two locations in Nigeria on Bulinus truncatus were studied in the laboratory. Snails were exposed for 96h to different concentrations of ethanolic extract of the plant root from Nsukka in Enugu State and Erei in Cross River State, Nigeria. Those in dechlorinated water served as control. On coming in contact with the test medium, the snails r...

BACKGROUND Fragile histidine triad (FHIT) is considered as a member of the histidine triad (HIT) nucleotide-binding protein superfamily regarded as a putative tumor suppressor executing crucial role in inhibiting p53 degradation by MDM2. Accumulating evidences indicate FHIT interaction with p53 or MDM2; however, there is no certain study deciphering functional domains of FHIT involving in the i...

Irrigation for intensive sugar cultivation started in the early 1980s at Richard Toll, some 100 km from the mouth of the Senegal River. Infections with Schistosoma mansoni were first seen in late 1988. This study records quantitative snail surveys for over 3 years from 1992 at sites representing different habitats in and around the irrigation scheme. Populations of both Biomphalaria pfeifferi (...