Results 11 to 20 of about 10,342 (185)
The tadpole conjecture proposes that complex structure moduli stabilisation by fluxes that have low tadpole charge can be realised only at special points in moduli space, leading generically to (large) gauge symmetries.
Andreas P. Braun +4 more
doaj +4 more sources
Abstract We examine the mechanism of moduli stabilization by fluxes in the limit of a large number of moduli. We conjecture that one cannot stabilize all complex-structure moduli in F-theory at a generic point in moduli space (away from singularities) by fluxes that satisfy the bound imposed by the tadpole cancellation condition ...
Bena, Iosif +3 more
openaire +4 more sources
Editors' Note: Dr. Egan inquires about the possibility of Tournay phenomenon in Kawasaki and Mayer's "Tadpole pupil." Dr. Charles, in reference to "Disease-modifying drugs for multiple sclerosis in pregnancy: A systematic review," suggests that it might be appropriate to continue glatiramer acetate in women trying to conceive given the lack of evidence
Deborah I, Friedman, Aki, Kawasaki
openaire +5 more sources
Influence of 50-Hz Electromagnetic Field on Anurian (Xenopus laevis) Metamorphosis
In this study, we show the effect of a 1-mT magnetic field AC at 50 Hz on Xenopus laevis tadpole populations. In the course of a 65-day exposure to the field, tadpole survival showed a small, but significant, decrease (p < 0.0004), together with a ...
S. Grimaldi +5 more
doaj +1 more source
Antipredator pheromones in amphibians: a review
Specific chemosignals (pheromones) have an important role in the antipredator behaviour in amphibians and other vertebrates. However, relatively little is known about the occurrence of chemical alarm cues just in amphibians.
J. Rajchard
doaj +1 more source
Microhabitat features determine the tadpole diversity in mountainous streams
The study on the mechanism driving the spatial patterns of biological diversity along elevational gradients is a main focus in ecology, biogeography, and conservation biology.
Zijian Sun +6 more
doaj +1 more source
Both the warming climate and ultraviolet-B radiation (UVBR) are considered to be notable environmental factors affecting amphibian population decline, with particular effects on tadpole development.
Xiaolong Tang +7 more
doaj +1 more source
Analytic tadpole coefficients of one-loop integrals
One remaining problem of unitarity cut method for one-loop integral reduction is that tadpole coefficients can not be straightforward obtained through this way. In this paper, we reconsider the problem by applying differential operators over an auxiliary
Bo Feng, Tingfei Li, Xiaodi Li
doaj +1 more source

