نتایج جستجو برای: megaselia scalar
تعداد نتایج: 46362 فیلتر نتایج به سال:
INTRODUCTION The transmission of harmful pathogens by arthropods is an increasing health concern. More concretely, flies are known to be able to transmit the infectious agent mechanically. OBJECTIVE The present work shows a case report occurred from foodservice establishments where were isolated and identified, at the first time, Megaselia spp. in the food preparation place. Furthermore, micr...
Se registra por primera vez en Venezuela la presencia del género Megaselia sp (Rondani, 1856) (Diptera: Phoridae) sobre frutos descomposición de hemiparásita Phthirusa pyrifolia (Kunth) Eichler (Loranthaceae) conocida popularmente como guatepajarito, parásita colectada ciudad Puerto Ordaz, ubicado el municipio Caroní, estado Bolívar, (8º18'55''LN; 62º42'53''LO) muy cerca unión río al Orinoco. I...
Conditional branches are expensive. Branches require a signi cant percentage of execution cycles since they occur frequently and cause pipeline ushes when mispredicted. In addition, branches result in forks in the control ow, which can prevent other code-improving transformations from being applied. In this paper we describe pro le-based techniques for replacing the execution of a set of two or...
In this paper, we examine the singlet scalar dark matter annihilation to becoming the Standard Model particles in the non-commutative space. In the recent decades, many candidates of dark matter have been offered, but our information about the nature of dark matter is still limited. There are such particle candidates as scalar matetr, fermion, boson, gauge boson, etc.; however, they have nei...
for a given riemannian manifold (m,g),it is an interesting question to study the existence of a conformal diffemorphism (also called as a conformal transformation) f : m ! m such that the metric g? = fg has one of the following properties: (i)(m; g?) has constant scalar curvature. (ii)(m; g?) is an einstein manifold.
In this paper, we consider a massive charged scalar field coupled to a uniform electric field background in a 3 dimensional de Sitter spacetime. We consider the value of the dimensionless coupling constant of the scalar field to the scalar curvature of a 3 dimensional de Sitter spacetime equal to 1/8. We compute the expectation value of the trace of the energy-momentum tensor in the in-vacuum s...
The segmentation gene network in insects can produce equivalent phenotypic outputs despite differences in upstream regulatory inputs between species. We investigate the mechanistic basis of this phenomenon through a systems-level analysis of the gap gene network in the scuttle fly Megaselia abdita (Phoridae). It combines quantification of gene expression at high spatio-temporal resolution with ...
In this paper, by modifying Cheng-Yau$'$s technique to complete hypersurfaces in $S^{n+1}(1)$, we prove a rigidity theorem under the hypothesis of the mean curvature and the normalized scalar curvature being linearly related which improve the result of [H. Li, Hypersurfaces with constant scalar curvature in space forms, {em Math. Ann.} {305} (1996), 665--672].
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