Results 141 to 150 of about 19,338 (301)

Dynamics of Size and Shape Variation During Embryonic Development in the Balkan Crested Newt

Journal of Experimental Zoology Part B: Molecular and Developmental Evolution, EarlyView.
Morphological variance in Triturus ivanbureschi embryos fluctuates during the tailbud phase, coinciding with developmental arrest caused by the balanced lethal system. Prehatching embryos show uniform variance. Our study reveals dynamics of morphological variability during early development and provides a baseline for further studies.
Marko Bugarčić, Ana Ivanović, Milena Cvijanović, Maja Ajduković, Marija Drobnjaković, Ben Wielstra, Tijana Vučić   +6 more
wiley   +1 more source

Ontogenesis associated changes in mitochondrial metabolism

During early ontogenesis in mammals, changes in the energy requirements of cells occur in relation to their differentiation and proliferation. At the same time, energy metabolism must respond to changes in the availability of substrates that are present ...
Sychra, Pavel
core  

Determination of microbiocoenosis in the intestine of the Hisex Brown hens in ontogenesis using T-RFLP method

, 2017
Microbiocoenosis in the gastrointestinal tract, especially in the ceca, play an important part in life processes of poultry. Identification of the structure and taxonomic composition of microorganisms in the cecum using molecular genetic methods serves ...
Kochish, Ivan I., Nikonov, I N, Smolensky, Vladimir I., Panin, A N, Romanov, Michael N, Barkova, Olga Y., Shaposhnikov, Mikhail N., Laptev, Georgi Yu., Ilyina, Larisa A., Novikova, Natalia I., Griffin, Darren K.   +10 more
core  

Optimizing stereo‐baited remote underwater video sampling efficiency in turbid waters through horizontal field of view adjustments

Limnology and Oceanography: Methods, EarlyView.
Abstract Accurate length data underpin many ecological and physiological analyses, from assessing population size structure to parameterizing biomass and bioenergetic models. Stereo‐baited remote underwater video systems (stereo‐BRUVs) provide a non‐intrusive means of collecting these data in situ, supporting management and conservation of motile ...
Reece D. Mills, Ruairí Gallagher, Samuel Smith, Patrick C. Collins, Jonathan D. R. Houghton   +4 more
wiley   +1 more source

Bulbophyllum weddellii (Orchidaceae) demonstrates foliar water uptake plasticity along Brazilian campos rupestres

Nordic Journal of Botany, EarlyView.
Phenotypic plasticity can facilitate species survival in a variety of conditions that are not possible with a fixed phenotype. Foliar water uptake (FWU), defined as the absorption of water through leaf surfaces, is an important mechanism contributing to plant water balance and drought tolerance in many species.
Daniela Boanares, Lucas Erickson Nascimento da Costa, Markus Gastauer, Cecílio Caldeira, Cecilia F. Fiorini   +4 more
wiley   +1 more source

Let's Talk About Bone Cylinders. Taphonomy of Carnivores and Humans

International Journal of Osteoarchaeology, EarlyView.
ABSTRACTBone cylinders are a distinctive structure predominantly produced by durophagous carnivoran species during the consumption of long bones, in which the diaphyseal canal remains intact while both epiphyses are removed or consumed. This study evaluates the significance of this morphology, traditionally attributed to extant and extinct hyena ...
Darío Herranz‐Rodrigo
wiley   +1 more source

Application of Photogrammetry and Mesh Comparison in the Study of Human Cranial Morphology

International Journal of Osteoarchaeology, EarlyView.
ABSTRACT Photogrammetric methods for generating three‐dimensional (3D) models are becoming increasingly widespread in the fields of archaeology and biological anthropology. In particular, the study of the variability of skull morphology (generated by the ancestry of the individual or by the application of certain cultural practices) using 3D models is ...
Carlos Cancio Moreno, Javier Lescure, Antonio González‐Martín   +2 more
wiley   +1 more source

Inherited and somatic components in the pathogenetics of common diseases. [PDF]

Vavilovskii Zhurnal Genet Selektsii
Nazarenko MS, Sleptcov AA, Puzyrev VP.
europepmc   +1 more source

THE LEARNINGOF THE NUMBER: PHYLOGENESIS AND ONTOGENESIS

Revista Voces de la Educación, 2016
Abstract: The learning of the number is the beginning of the formal mathematical knowledge, it is there, where the importance of revising thoroughly its learning and its teaching from both perspectives centers;in the primitive human groups and in each person. This document shows both procedures based in several findings from researchers and theoretical
openaire   +2 more sources

Peculiarities OF Digestive Organs Development in Ontogenesis

The article presents the structural and functional features of the development of the digestive organs in early postnatal ontogenesis. It is shown that the digestive organs of the newborn are still unformed, therefore the baby is immature.
Burtkhanovich, K. B. (Khasanov)
core