Results 41 to 50 of about 7,141 (229)

Positive selection in bone morphogenetic protein 15 targets a natural mutation associated with primary ovarian insufficiency in human.

open access: yesPLoS ONE, 2013
Bone Morphogenetic Protein 15 (BMP15) is a TGFβ-like oocyte-derived growth factor involved in ovarian folliculogenesis as a critical regulator of many granulosa cell processes.
Sylvain Auclair   +7 more
doaj   +1 more source

Natural history of the ERVWE1 endogenous retroviral locus

open access: yesRetrovirology, 2005
Background The human HERV-W multicopy family includes a unique proviral locus, termed ERVWE1, whose full-length envelope ORF was preserved through evolution by the action of a selective pressure. The encoded Env protein (Syncytin) is involved in hominoid
Duret Laurent   +5 more
doaj   +1 more source

First partial skeleton of a 1.34-million-year-old Paranthropus boisei from Bed II, Olduvai Gorge, Tanzania.

open access: yesPLoS ONE, 2013
Recent excavations in Level 4 at BK (Bed II, Olduvai Gorge, Tanzania) have yielded nine hominin teeth, a distal humerus fragment, a proximal radius with much of its shaft, a femur shaft, and a tibia shaft fragment (cataloged collectively as OH 80). Those
Manuel Domínguez-Rodrigo   +18 more
doaj   +1 more source

Structural Characterization of the Highly Restricted Down Syndrome Critical Region on 21q22.13: New KCNJ6 and DSCR4 Transcript Isoforms

open access: yesFrontiers in Genetics, 2021
Down syndrome (DS) is caused by trisomy of chromosome 21 and it is the most common genetic cause of intellectual disability (ID) in humans. Subjects with DS show a typical phenotype marked by facial dysmorphisms and ID.
Francesca Antonaros   +8 more
doaj   +1 more source

On the origin and evolutionary history of NANOG. [PDF]

open access: yesPLoS ONE, 2014
Though pluripotency is well characterized in mammals, many questions remain to be resolved regarding its evolutionary history. A necessary prerequisite for addressing this issue is to determine the phylogenetic distributions and orthology relationships ...
Pierluigi Scerbo   +6 more
doaj   +1 more source

Dental functional morphology predicts the scaling of chewing rate in mammals [PDF]

open access: yes, 2018
How food intake and mastication scale to satisfy the metabolic needs of mammals has been the subject of considerable scientific debate. Existing theory suggests that the negative allometric scaling of metabolic rate with body mass is compensated by a ...
Fortelius, Mikael, Zliobaite, Indre
core   +1 more source

A novel attention-getting vocalization in zoo-housed western gorillas.

open access: yesPLoS ONE, 2022
As a critical aspect of language, vocal learning is extremely rare in animals, having only been described in a few distantly related species. New evidence, however, extends vocal learning/innovation to the primate order, with zoo-housed chimpanzees and ...
Roberta Salmi   +2 more
doaj   +1 more source

A conditional compression distance that unveils insights of the genomic evolution

open access: yes, 2014
We describe a compression-based distance for genomic sequences. Instead of using the usual conjoint information content, as in the classical Normalized Compression Distance (NCD), it uses the conditional information content.
Pinho, Armando J., Pratas, Diogo
core   +1 more source

The effect of foot posture on capacity to apply free moments to the ground: implications for fighting performance in great apes [PDF]

open access: yes, 2017
In contrast to most other primates, great apes have feet in which the heel supports body weight during standing, walking and running. One possible advantage of this plantigrade foot posture is that it may enhance fighting performance by increasing the ...
Christopher Cunningham, David R. Carrier
core   +3 more sources

EVOLUTION OF THE HUMAN CAPACITY FOR BELIEFS

open access: yesZygon, 1993
. Evolution of the human capacity for beliefs is considered in relation to the emergence in human phylogeny of the ability to formulate propositions, evaluate their worth as bases for action, and make emotional attachments to them.
doaj   +2 more sources

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