Results 111 to 120 of about 94,455 (293)
Twin pregnancies and the limits of the energetics of gestation and growth hypothesis
The 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 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
"Updating the Teen Miscarriage Experiment: Are the Effects of a Teen Birth Becoming More Negative?" [PDF]
A reanalysis of the Hotz, McElroy, and Sanders research on the impact of a teen birth on socio-economic outcomes shows that their data set, which includes information on outcomes at older ages only for teen mothers with the earliest calendar year births,
Saul D. Hoffman
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
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
Obesity and peri-implantation endometrium [PDF]
Obesity is a global health problem and the current available evidence from the literature suggests that obese women may suffer from a wide spectrum of reproductive complications.
Bhandari, Harish
core
The Anatomical Record, EarlyView.Abstract Sharks possess varied diets and different prey capture mechanisms. As a result, the group exhibits a significant diversity in dental morphology, also reflecting the internal structures of the teeth. Internal dental anatomy points to the existence of three histotypes in elasmobranch phylogeny: orthodont, osteodont, and pseudoosteodont ...
Kelly Roberta da Silva +2 more
wiley +1 more source
Bisphenol B Exposure Induces Miscarriage by Suppressing Migration/Invasion and Migrasome Formation
Advanced ScienceUnexplained miscarriage (UM) remains challenge due to unclear pathogenesis and biological mechanisms. BPB (Bisphenol B), an extensively used endocrine disrupting chemical, has been widely detected out in human.
Wenxin Huang +13 more
doaj +1 more source
Animal Research and One Health, EarlyView.Source attribution figure for human and dogs Brucella canis infections. ABSTRACT We report a rare occurrence of genetic material from both Brucella canis and B. melitensis detected in a domesticated dog from Jiangsu Province, China. The detection was confirmed through serological assays, quantitative PCR (qPCR), metagenomic and genomic sequencing ...
Shengxin Ge +4 more
wiley +1 more source
“Things change, things aren’t always a given”: Exploring the Experiences of Miscarriage: A Narrative Analysis. [PDF]
Introduction: Miscarriage continues to be a prevalent experience; one in four pregnancies will end in miscarriage and is the most common adverse outcome of pregnancy.
Rogers, Majda
core +1 more source