Results 81 to 90 of about 59,744 (316)
Potential of Orange Peel Ash as a Cement Replacement Material [PDF]
The potential of Orange peel ash (OPA) as a cement replacement material was investigated with focus on the effect of OPA content on the physicomechnical properties such as consistency, setting times, soundness, compressive and flexural strengths of OPA ...
Abdullahi, Basiru +2 more
core +2 more sources
Abstract Stages of embryonic development for reptiles have been presented in tables that may include all or part of embryonic development. When oviposition occurs in some lizards, embryos are already in the later stages of development; likewise, the size of the eggs increases as incubation time progresses.
Nivia Rocio Antonio‐Rubio +3 more
wiley +1 more source
The Effect of Eggshell Quality on Hatchability of Pure Chicken Breeds
Hatchability is affected by a variety of factors. Eggshell quality plays very important role among these factors. In this work we analysed eggshell quality, hatchability and embryonic mortality of pure chicken breeds New Hampshire, Oravka, Plymouth Rock,
Cyril Hrnčár +2 more
doaj
The biological frontier of pattern formation [PDF]
Morphogenetic patterns are highly sophisticated dissipative structures. Are they governed by the same general mechanisms as chemical and hydrodynamic patterns? Turing's symmetry breaking and Wolpert's signalling provide alternative mechanisms.
Pismen, L. M.
core +2 more sources
Abstract A recent debate has emerged between Caspar et al. (2024) and Herculano‐Houzel (2023) on inferring extinct dinosaur cognition by estimating brain neuron counts. While thought‐provoking, the discussion largely overlooks the function of cognition, as well as partly neglects the difficulties involved in estimating neuron numbers, which according ...
Thomas Rejsenhus Jensen +7 more
wiley +1 more source
The chicken embryo and its micro environment during egg storage and early incubation [PDF]
When egg storage periods are prolonged (>7 days), hatchability and chick quality declines. The reason for this decline has been investigated, but is still not completely understood.
Brand, H., van den +3 more
core +2 more sources
Abstract The study of morphological evolution is fundamentally tied to ontogeny, yet studies of these heterochronic processes in the fossil record are rare. Fossils belonging to an ontogenetic series are difficult to assign to an ontogenetic stage due to inconsistent proxies for skeletal ages, challenging to taxonomically assign due to morphological ...
Erika R. Goldsmith, Michelle R. Stocker
wiley +1 more source
A Scanning Electron Microscopic Study of Eggshell Surface Topography of Leidynema portentosae and L. appendiculatum (Nematoda: Oxyuroidea) [PDF]
Author Institution: Department of Zoology, The Ohio State UniversityThe eggs of the nematodes Leidynema appendiculatum and L. portentosae were studied with scanning electron microscopy (SEM).
Crites, John L., Yu, Xiong
core
Abstract Last year, we challenged the view that large‐bodied theropod dinosaurs such as Tyrannosaurus rex resembled primates in cognition and behavior, a proposition made by Herculano‐Houzel in 2023. More recently, Jensen et al. have criticized our work on this topic, raising methodological and conceptual issues.
Kai R. Caspar +5 more
wiley +1 more source
Multi‐omics analysis revealed that FOS supplementation increased the abundance of Phascolarctobacterium, GCA‐900066575, Shuttleworthia, Olsenella, Eubacterium_hallii_group while decreasing Alistipes. It also influenced the metabolism of S‐lactoylglutathione, p‐cresol glucuronate, 2‐phenylethanol glucuronide, propionic acid, dulcitol, and inhibited the ...
Dan Song +11 more
wiley +1 more source

