Results 121 to 130 of about 31,799 (246)
Social efficiency deficit deciphers social dilemmas. [PDF]
Arefin MR +4 more
europepmc +1 more source
Modelling collective action to change social norms around domestic violence: social dilemmas and the role of altruism. [PDF]
Gram L +4 more
europepmc +1 more source
The pelvis doesn't walk by itself: Wider pelves reduce the cost of walking over unstable surfaces
Abstract Walking over variable and/or unstable terrain is a key aspect of daily life and was crucial to the evolution of bipedalism. The ability to find gait solutions that maintained stability over uneven terrain for the least increase in metabolic cost was likely a hallmark of locomotor effectiveness in early humans, in particular acting as an ...
Cara Wall‐Scheffler +2 more
wiley +1 more source
Human evolution and the obstetrical dilemma: The pelvic floor hypothesis
Abstract Human childbirth is mechanically difficult because a large‐headed, broad‐shouldered fetus must pass through a comparatively narrow, twisted bony birth canal. Traditional explanations of this “obstetrical dilemma” emphasize the role of bipedal locomotion in inhibiting the evolution of a wider, more spacious pelvis.
Barbara Fischer, Ekaterina Stansfield
wiley +1 more source
Abstract The obstetrical dilemma hypothesis (ODH) proposes an evolutionary trade‐off between obstetric requirements and locomotor performance. However, whether external pelvic breadth measures influence walking energetics during human growth remains poorly understood.
Guillermo Zorrilla‐Revilla +4 more
wiley +1 more source
Automata representation of successful strategies for social dilemmas. [PDF]
Murase Y, Baek SK.
europepmc +1 more source
The “costly son” hypothesis: Sons exacerbate obstetrical dilemmas in humans and other mammals
Abstract Human childbirth has often been considered uniquely difficult among mammals, yet recent evidence suggests that obstructed labor and fetopelvic disproportion are widespread across placental mammals. Here, we propose the “costly son” hypothesis: because male offspring are typically larger at birth, they impose greater obstetric risk on mothers ...
Nicole D. S. Grunstra +1 more
wiley +1 more source
Objective Pathologic bone formation in ankylosing spondylitis (AS) is not fully reflected by systemic inflammation, limiting the utility of markers of inflammation for structural damage assessment. This study aimed to identify plasma protein signatures associated with structural damage severity in AS.
Tiantian Sun +9 more
wiley +1 more source
Two ways to overcome the three social dilemmas of indirect reciprocity. [PDF]
Okada I.
europepmc +1 more source

