Results 141 to 150 of about 16,178,120 (306)
Mother's education and birth weight [PDF]
Low birth weight has considerable short and long-term consequences and leads to high costs to the individual and society even in a developed economy.
Vincent O'Sullivan, Arnaud Chevalier
core
The mechanism of labor in nonhuman primates: A look inside
The 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
The Anatomical Record, EarlyView.Abstract The cortical bone structure of long bone diaphyses changes throughout growth via skeletal modeling and has important implications for bone strength and structural integrity. Ontogenetic trends in diaphyseal structure have been identified in both chimpanzees and humans but it is not yet clear how these trends compare given notable differences ...
Karen R. Swan +3 more
wiley +1 more source
Trends in low birth weight : United States, 1975-85 [PDF]
National and regional trends in rates of low, moderately low, and very low birth weight are analyzed for the period 1975-85. Also reviewed are 1985 rates of low, moderately low, and very low birth weight in relation to a number of maternal and infant ...
core
The Anatomical Record, EarlyView.Abstract Maternal and neonatal morbidity and mortality have declined dramatically during the last century. Historical data are therefore important sources to study the evolutionary selection pressures related to childbirth and how they have fluctuated over time.
Mirella Woodert +7 more
wiley +1 more source
Human evolution and the obstetrical dilemma: The pelvic floor hypothesis
The Anatomical Record, EarlyView.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
Majallah-i Dānishgāh-i ̒Ulūm-i Pizishkī-i Bābul, 2012 BACKGROUND AND OBJECTIVE: Very low birth weight (VLBW) infants (4-7% live birth) are at high risk for mortality (one third of neonatal mortality). To determine the frequency of disease-free survival, complications and risk factors for morbidity and ...
SA Afjeh +3 more
doaj
The Anatomical Record, EarlyView.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
Understanding Mothers' Experiences of Very Low Birth Weight Infants Across the Childbirth Trajectory in Japan: A Retrospective Analysis Using Natural Language Processing. [PDF]
Jpn J Nurs SciKojima M +4 more
europepmc +1 more source
The “costly son” hypothesis: Sons exacerbate obstetrical dilemmas in humans and other mammals
The Anatomical Record, EarlyView.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