Results 91 to 100 of about 42,376 (222)
Fish and amphibians as test organisms for evaluation of effects caused by chemicals [PDF]
, 2007 A large number of chemicals can contaminate aquatic environments and therefore be exposed to fish and amphibians during their sensitive stages of development.
Carlsson, Gunnar
core
Diagnostic Cytopathology, Volume 54, Issue 6, Page 429-435, June 2026.ABSTRACT Introduction Esophageal perforation (EP) is a rare but life‐threatening condition, and most cases are due to iatrogenic causes. The rest occur spontaneously, due to malignancies, or trauma. The mortality rates can approach 50%, and delayed diagnosis of EP exacerbates patient outcomes.
Mason Marshall +3 more
wiley +1 more source
Classification and a toolbox for orientifold models
, 2005 We provide the general tadpole conditions for a class of supersymmetric orientifold models by studing the general properties of the elements included in the orientifold group.
Aldazabal +11 more
core +1 more source
Hypotheses for the Adaptive Maintenance of Phenotypic Polymorphisms
Ecology and Evolution, Volume 16, Issue 5, May 2026.Phenotypic polymorphisms offer easily observable diversity ideal for empirical and theoretical exploration, but developing and comparing hypotheses for the adaptive maintenance of polymorphism can be a challenge. Here, we propose a framework categorizing polymorphisms based on (i) one of five distinct types of maintenance selection and (ii) the context
Jay J. Falk +2 more
wiley +1 more source
Neotropical tadpoles: spatial and temporal distribution and habitat use at a seasonal lake in Veracruz, Mexico [PDF]
Phyllomedusa: Journal of Herpetology, 2002 We studied a tadpole assemblage in a seasonal neotropical lake where 14 species of anurans reproduce. Tadpoles were collected monthly at nine sampling stations at depth intervals of 1 m from the surface to the bottom (13 m).
Roberto E. Torres-Orozco +3 more
doaj
Model Building and Phenomenology of Flux-Induced Supersymmetry Breaking on D3-branes
, 2004 We study supersymmetry breaking effects induced on D3-branes at singularities by the presence of NSNS and RR 3-form fluxes. First, we discuss some local constructions of chiral models from D3-branes at singularities, as well as their global embedding in ...
Abdullah +108 more
core +3 more sources
Target Capture Sequencing Provides Insights Into Hybridogenetic Water Frogs
Ecology and Evolution, Volume 16, Issue 5, May 2026.The genomics of European frogs of the genus Pelophylax are intriguing due to their propensity to hybridise, the prevalence of polyploidy, and the unusual hemiclonal hybridogenetic complexes formed in many populations. This study examines the use of target capture sequencing using the Frog Cap bait set to investigate these complex systems.
Lisanne van Veldhuijzen +5 more
wiley +1 more source
Cases of albinism and leucism in amphibians in Italy: new reports
Natural History Sciences, 2017 Findings of abnormally pigmented amphibian individuals provide interesting insights on intraspecific phenotypic variability as well as on variation among populations inhabiting different habitats.
Enrico Lunghi +15 more
doaj +1 more source
Comments on the classification of orientifolds
, 2002 The simple current construction of orientifolds based on rational conformal field theories is reviewed. When applied to SO(16) level 1, one can describe all ten-dimensional orientifolds in a unified framework.Comment: 9 pages, Contribution to proceedings
Angelantonj C +12 more
core +1 more source