Results 161 to 170 of about 89,266 (344)

Morphometric analysis of postnatal lung development in the gray short‐tailed opossum (Monodelphis domestica): An ultrastructural study

open access: yesThe Anatomical Record, EarlyView.
Abstract An ultrastructural morphometric analysis of the postnatal development of the lung in the gray short‐tailed opossum (Monodelphis domestica) has been conducted to evaluate the morphofunctional status of this poorly developed marsupial lung immediately following parturition.
Kirsten Ferner
wiley   +1 more source

Managing work and motherhood: implications for perinatal mental health [PDF]

open access: yes, 2007
This research explores the perinatal wellbeing of mothers working in the paid labour force. In particular it focuses on: •work and identity; •the transition into the workplace after birth; •the decision-making process in returning to work; •attitudes
Gallegos, D.
core   +1 more source

Over the edge: Empirical evidence for the cliff‐edge model of obstetric selection

open access: yesThe Anatomical Record, EarlyView.
Abstract The cliff‐edge model of obstetric selection maintains that larger neonates and smaller birth canals confer a positive selective advantage until labor becomes obstructed and vaginal delivery is no longer possible, eliciting an abrupt reduction in fitness.
Laura M. Watson   +6 more
wiley   +1 more source

Twin pregnancies and the limits of the energetics of gestation and growth hypothesis

open access: yesThe Anatomical Record, EarlyView.
Abstract The “Energetics of Gestation and Growth” (EGG) hypothesis proposes that human birth timing and the associated secondary altriciality of human newborns is determined by limits in maternal metabolic capacity. According to this model, labor is triggered when the increasing fetal energy requirements exceed the expectant mother's maximum sustained ...
Cédric Cordey   +2 more
wiley   +1 more source

The 9+ month marathon: How pregnancy may have shaped human endurance capacities

open access: yesThe Anatomical Record, EarlyView.
Abstract Anthropology has long considered the evolution of our uniquely human endurance capacities to be the result of selection upon anatomical and physiological features imposed by the demands of thermoregulation and resource acquisition, particularly during the demands of persistence hunting. Research has focused on the anatomical changes present in
Cara Ocobock
wiley   +1 more source

Physiological and behavioural responses to fear and discomfort in dogs and goats [PDF]

open access: yes, 2010
In this thesis, behavioural and physiological methods were combined to better understand reactions to fearful situations in dogs and separation in goats. Fear of gunshots is common in dogs, but also other fears, such as fear of walking on certain floors.
Winblad von Walter, Louise
core  

Maternal separation leads to regional hippocampal microglial activation and alters the behavior in the adolescence in a sex-specific manner

open access: gold, 2020
Sara Bachiller   +4 more
openalex   +1 more source

The mechanism of labor in nonhuman primates: A look inside

open access: yesThe Anatomical Record, EarlyView.
Abstract While in humans, the flexed position of the fetus and its rotating course down the birth canal are well documented, in other primates the mechanism of labor is unknown. Despite the lack of comparative data, it is commonly assumed that the human obstetric mechanism is unique, and anthropologists have disputed when and why the transition to the ...
Melissa K. Stoller
wiley   +1 more source

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