Results 261 to 270 of about 38,188 (301)
Some of the next articles are maybe not open access.

Early ontogeny of the human femoral bicondylar angle

American Journal of Physical Anthropology, 1994
AbstractThe presence of a femoral bicondylar angle consistently and significantly greater than 0° has been a hallmark of hominid bipedality, but its pattern of development has not been documented. We have therefore compiled cross‐sectional data on the development of the articular bicondylar angle for a clinical sample of modern humans and of the ...
C, Tardieu, E, Trinkaus
openaire   +2 more sources

Early Ontogeny of Introduced Hydrangea Species

Russian Journal of Developmental Biology, 2021
This work describes early ontogeny of Hydrangea L. species introduced into the Bashkir Cis-Urals. In Hydrangea, the four distinct age-states of the virginile ontogenetic period, namely seedlings, juveniles, immatures and mature vegetative plants, were identified and their morphologic features and development chronology were described. Hydrangeas become
F. K. Murzabulatova   +2 more
openaire   +1 more source

Development of immune responses in early pig ontogeny

Veterinary Immunology and Immunopathology, 1994
Low amounts of immunoglobulins, produced without any known cause of stimulation, can be detected in sera and cells of fetal and colostrum deprived newborn pigs. These immunoglobulins are believed to represent the preimmune antibody repertoire on the basis of their polyspecificity and reactivity against self antigens.
H, Tlaskalova-Hogenova   +5 more
openaire   +2 more sources

Early Ontogeny in the Siberian Sturgeon

2017
This chapter is a synthesis of published information describing the development of Siberian sturgeon during the embryonic (from fertilization to hatching), prelarval (from hatching to the onset of exogenous feeding) and larval (from first feeding to the juvenile stage) periods.
Enric Gisbert, Yoon Kwon Nam
openaire   +1 more source

The allometry of leaf form in early plant ontogeny

Bulletin of Mathematical Biology, 2005
A general allometric model between metabolic rate and body size has been derived for early plant ontogeny. The scaling exponent is (2+N/6)/3, where N is the cell's degree of freedom of motion. For early plant ontogeny N=2, our prediction agrees well with Sack et al.'s observation [Sack, L., Maranon, T., Grubb, P.J., 2002. Science 295, 1923].
openaire   +2 more sources

Protein digestion in early postnatal ontogeny

Bulletin of Experimental Biology and Medicine, 1974
Newborn rats aged 3 days, removed from their mothers for 3 h, were given 0.4 ml of a 20% aqueous solution of human albumin by mouth. Pieces of tissue from the proximal jejunum and the renal cortex of the animals were investigated electron-microscopically by Gomori's reaction for acid phosphatase.
K. A. Zufarov   +2 more
openaire   +1 more source

Fossilized ontogenies: the contribution of placoderm ontogeny to our understanding of the evolution of early gnathostomes

Palaeontology, 2014
AbstractPlacoderms, representing phylogenetically more inclusive jawed vertebrates and successive sister taxa to crown‐group gnathostomes, are critical to our understanding of character evolution within the crown‐group (chondrichthyans + osteichthyans), including developmental characters.
Johanson, Z., Trinajstic, Katherine
openaire   +2 more sources

Intersubjective communication and emotion in early ontogeny

Infant Observation, 2001
(2001). Intersubjective communication and emotion in early ontogeny. Infant Observation: Vol. 4, No. 3, pp. 109-112.
openaire   +1 more source

[Early ontogeny of the human hematopoietic system].

Comptes rendus des seances de la Societe de biologie et de ses filiales, 1996
Immunohistochemistry was used to detect markers of the vascular, stromal and hematopoietic cell compartments in the human embryo and early fetus, from 3 to 15 weeks of gestation. CD34 expression was consistently observed at the surface of vascular endothelial cells from off earliest stages tested, at the single exception of embryonic liver blood ...
P, Charbord   +7 more
openaire   +1 more source

The siphonotretide brachiopod Schizambon from the Early Ordovician of South China: ontogeny and affinity

Papers in Palaeontology, 2023
Zhiliang Zhang   +2 more
exaly  

Home - About - Disclaimer - Privacy