Results 51 to 60 of about 33,233 (205)

There’s no smell like home: how sensory ontogeny plays a role in the early life history of estuarine-dependent fishes

open access: yesFrontiers in Marine Science, 2015
The spatial distribution and connectivity of marine organisms and their populations are largely determined by biophysical factors affecting dispersal during the larval phase. It is becoming increasingly clear that larval behaviour and active swimming may
J. Jack O'Connor   +3 more
doaj   +1 more source

A Juvenile Specimen of Archaeorhynchus Sheds New Light on the Ontogeny of Basal Euornithines

open access: yesFrontiers in Earth Science, 2021
The ontogenetic development of extant birds is characterized by rapid growth, bone fusion and an early onset of flight ability. In contrast, little is known about how these ontogenetic traits evolved in the bird stem lineage, and the available data ...
Christian Foth   +4 more
doaj   +1 more source

Coagulation of blood properties of vegetable nutrition in piglets (in environmental conditions of central Russia)

open access: yesRUDN Journal of Ecology and Life Safety, 2013
The work purpose — to reveal features of coagulatory activity of plasma of blood at the healthy pigs of a vegetative food who are growing up in the central Russia.
A V Parahnevich, I N Medvedev
doaj  

Ontogeny and phylogeny: molecular signatures of selection, constraint, and temporal pleiotropy in the development of Drosophila

open access: yesBMC Biology, 2009
Background Karl Ernst Von Baer noted that species tend to show greater morphological divergence in later stages of development when compared to earlier stages. Darwin originally interpreted these observations via a selectionist framework, suggesting that
Haerty Wilfried   +2 more
doaj   +1 more source

Development and application of a pediatric mechanistic kidney model

open access: yesCPT: Pharmacometrics & Systems Pharmacology, 2022
Pediatric physiologically‐based pharmacokinetic (P‐PBPK) models have been used to predict age related changes in the pharmacokinetics (PKs) of renally cleared drugs mainly in relation to changes in glomerular filtration rate.
Farzaneh Salem   +2 more
doaj   +1 more source

Carried over: Heat stress in the egg stage reduces subsequent performance in a butterfly. [PDF]

open access: yesPLoS ONE, 2017
Increasing heat stress caused by anthropogenic climate change may pose a substantial challenge to biodiversity due to associated detrimental effects on survival and reproduction.
Michael Klockmann   +2 more
doaj   +1 more source

Phyllotactic pattern formation in early stages of cactus ontogeny

open access: yesActa Societatis Botanicorum Poloniae, 2011
Representatives of the family Cactaceae are characterized by a wide range of phyllotaxis. To assess the origin of this diversity, early stages of phyllotactic pattern formation were examined in seedlings. The analysis of the sequence of areole initiation
Edyta M. Gola
doaj   +1 more source

Unravelling the temporal and spatial variation of fungal phylotypes from embryo to adult stages in Atlantic salmon

open access: yesScientific Reports
Early microbial colonization has a profound impact on host physiology during different stages of ontogeny. Although several studies have focused on early bacterial colonization and succession, the composition and role of fungal communities are poorly ...
Jep Lokesh   +2 more
doaj   +1 more source

Effects of praziquantel on early life stages of Grass carp, Ctenopharyngodon idella

open access: yesVeterinární Medicína
This study aimed to assess the toxicity of the anthelmintic drug praziquantel in the early life stages of grass carp (Ctenopharyngodon idella). The toxicity was evaluated based on mortality, early ontogeny development, growth, oxidative stress biomarkers,
J Velisek   +5 more
doaj   +1 more source

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