Results 71 to 80 of about 10,342 (185)

Tadpole pupil [PDF]

open access: yesNeurology, 2012
Aki, Kawasaki, Cedric, Mayer
openaire   +2 more sources

Bayesian Inference for Multivariate Monotone Densities

open access: yesScandinavian Journal of Statistics, EarlyView.
ABSTRACT We consider a nonparametric Bayesian approach to estimation and testing for a multivariate monotone density. Instead of following the conventional Bayesian approach of imposing a prior that satisfies the monotonicity restriction, we place a prior on the step heights via binning and a Dirichlet distribution. The resulting posterior distribution
Kang Wang, Subhashis Ghosal
wiley   +1 more source

Multiple Overspill Flood Channels from Young Craters Require Surface Melting and Hundreds of Meters of Midlatitude Ice Late in Mars’s History

open access: yesThe Planetary Science Journal
Mars’s tadpole craters are small, young craters whose crater rims are incised by one or more exit breaches but lack visible inlets. The tadpole-forming climate records the poorly understood drying of Mars since the Early Hesperian.
Alexandra O. Warren   +4 more
doaj   +1 more source

Maturation of spinal motor control through developmental changes in ion currents

open access: yesThe Journal of Physiology, EarlyView.
Abstract figure legend Ion channels of spinal neurons have been shown to change during development in a wide range of species. These changes occur at specific stages of development. An important developmental process is the maturation of motor control by which the body acquires new movements or refines movements already present.
Stephanie F. Gaudreau, Tuan V. Bui
wiley   +1 more source

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

Fins are relevant non-lethal surrogates for muscle to measure stable isotopes in amphibians

open access: yesKnowledge and Management of Aquatic Ecosystems, 2019
Stable isotope analyses (SIA) are now widely used in ecology research to quantify the trophic implications of a large range of ecological processes.
Bélouard Nadège   +4 more
doaj   +1 more source

Lymph node stromal topology as a hidden regulator of breast cancer outcome: commentary on reticular network analysis†

open access: yesThe Journal of Pathology, Volume 270, Issue 1, Page 1-3, September 2026.
Abstract The axillary lymph node remains a cornerstone of breast cancer staging and therapeutic decision‐making, yet it is still largely interpreted through a static anatomical framework. Emerging evidence challenges this paradigm, positioning tumor‐draining lymph nodes as dynamic immunological ecosystems that actively regulate tumor progression and ...
Andrea Vethencourt   +2 more
wiley   +1 more source

Tadpole of Frog [PDF]

open access: yesNature, 1911
AT the beginning of April last I collected some frog ova for the purpose of making observations on development. Tadpoles appeared about April 9, and from time to time from that date until July 17, when young frogs were developed, I took batches away for preservation and sectioning.
openaire   +2 more sources

Antipredatory Strategies of Anurans: An Updated Conceptual Review

open access: yesEthology, Volume 132, Issue 9, Page 662-708, September 2026.
To unravel the evolutionary dynamics of predator–prey interactions, we propose an updated, three‐tiered classification of anuran antipredatory strategies. By mapping non‐behavioral, individual, and group defenses across five functional phases, this integrative framework introduces the concept of synergetic coupling.
Ubiratã Ferreira Souza   +3 more
wiley   +1 more source

Vulnerability and behavioral responses of South Chinese anuran tadpoles to native dragonfly (Pantala flavescens) naiads and introduced western mosquitofish (Gambusia affinis)

open access: yesJournal of Freshwater Ecology, 2017
Anti-predator behavior is an important fitness component in most animals. Alien predator species are a serious threat to amphibian populations. We studied the vulnerability and behavioral defenses of tadpoles of six Chinese anurans in response to the ...
Xiao-Li Fan, Zhi-Hua Lin
doaj   +1 more source

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