Results 121 to 130 of about 48,346 (206)

Difficulties of an Infrared Extension of Differential Renormalization

open access: yes, 1993
We investigate the possibility of generalizing differential renormalization of D.Z.Freedman, K.Johnson and J.I.Latorre in an invariant fashion to theories with infrared divergencies via an infrared $\tilde{R}$ operation.
Avdeev, L. V.   +2 more
core   +1 more source

Chern class identities from tadpole matching in type IIB and F-theory

open access: yes, 2007
In light of Sen's weak coupling limit of F-theory as a type IIB orientifold, the compatibility of the tadpole conditions leads to a non-trivial identity relating the Euler characteristics of an elliptically fibered Calabi-Yau fourfold and of certain ...
Aluffi, Paolo, Esole, Mboyo
core   +3 more sources

Stellar Populations and Star Cluster Formation in Interacting Galaxies with the Advanced Camera for Surveys

open access: yes, 2002
Pixel-by-pixel colour-magnitude and colour-colour diagrams - based on a subset of the Hubble Space Telescope Advanced Camera for Surveys Early Release Observations - provide a powerful technique to explore and deduce the star and star cluster formation ...
Jessica T. Lee B   +5 more
core   +2 more sources

Induced Electroweak Symmetry Breaking and Supersymmetric Naturalness

open access: yes, 2013
In this paper we study a new class of supersymmetric models that can explain a 125 GeV Higgs without fine-tuning. These models contain additional `auxiliary Higgs' fields with large tree-level quartic interaction terms but no Yukawa couplings. These have
Galloway, Jamison   +3 more
core   +1 more source

Body length of Hylodes cf. ornatus and Lithobates catesbeianus tadpoles, depigmentation of mouthparts, and presence of Batrachochytrium dendrobatidis are related Tamanho do corpo, despigmentação das partes bucais e presença de Batrachochytrium dendrobatidis estão relacionados em Hylodes cf. ornatus e Lithobates catesbeianus

open access: yesBrazilian Journal of Biology, 2013
A fungal pathogen Batrachochytrium dendrobatidis (Bd), which can cause morbidity and death of anurans, has affected amphibian populations on a worldwide basis.
CA. Vieira   +3 more
doaj  

The tadpole of Hypsiboas leptolineatus (Braun and Braun, 1977), a species in the Hypsiboas polytaenius clade (Anura; Hylidae)

open access: yesBrazilian Journal of Biology
The larval morphology of Hypsiboas leptolineatus was studied. The tadpole has an ovoid body in lateral view, wider than deep; snout rounded with dorsal reniform nostrils; spiracle sinistral with lateral wall attached to body; anal tube dextral; tail fins
C. Both, A. Kwet, M. Solé
doaj   +1 more source

Morphometrics and ratio of body proportionality of tadpoles of Rhinella icterica (Anura, Bufonidae) at different developmental stages

open access: yesBrazilian Journal of Biology
The plasticity of the anurans' development is probably related to their great ecological and geographic diversity. Therefore, the understanding of environmental occupation by tadpoles is related to their morphological peculiarities.
MSCS. Lima, J. Pederassi
doaj   +1 more source

Desarrollo embrionario y larva del sapo Incilius aucoinae (Bufonidae) en Golfito, Costa Rica

open access: yesRevista de Biología Tropical, 2009
Se describe la larva y los estadios del desarrollo del huevo y larva de Incilius aucoinae utilizando especímenes del río Cañaza, Golfito, Costa Rica, recolectados en enero de 1997 y enero-febrero de 1998.
Susy Segura-Solís, Federico Bolaños
doaj  

Novel Insights into the Distribution and Effects of Perfluorooctanesulfonic acid (PFOS) in the Nervous System of a Frog Tadpole Model by Mass Spectrometry Imaging. [PDF]

open access: yesEnviron Sci Technol
Poulsen R   +7 more
europepmc   +1 more source

Beyond locomotion: How specialized motor patterns enable a vertebrate to struggle free from capture. [PDF]

open access: yesiScience
Farjami S   +8 more
europepmc   +1 more source

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