News tagged with reproductive problems
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Ecological speciation by sexual selection on good genes: Is speciation adaptive?
Nov 26, 2009 |
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Darwin suggested that the action of natural selection can produce new species, but 150 years after the publication of his famous book, 'On the Origin of Species', debate still continues on the mechanisms of speciation. New ...
Female birds -- acting just like the guys -- become sexual show-offs in cooperative breeding species
Dec 09, 2009 |
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(PhysOrg.com) -- Female birds in species that breed in groups can find themselves under pressure to sexually show off and evolve the same kinds of embellishments - like fanciful tail feathers or chest-puffing ...
Common plastics chemicals linked to ADHD symptoms
Medicine & Health / Psychology & Psychiatry
Nov 19, 2009 |
4.4 / 5 (5) |
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Phthalates are important components of many consumer products, including toys, cleaning materials, plastics, and personal care items. Studies to date on phthalates have been inconsistent, with some linking exposure to these ...
Pilot study relates phthalate exposure to less-masculine play by boys
Nov 16, 2009 |
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A study of 145 preschool children reports, for the first time, that when the concentrations of two common phthalates in mothers' prenatal urine are elevated their sons are less likely to play with male-typical toys and games, ...
A RANK insider resolving the enigma of the fever chart
Nov 25, 2009 |
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Mammals have evolved a complex system for controlling bone remodeling. Babies require calcium for healthy bones and they obtain it from their mother's milk. Nursing mothers release calcium from their bones. Surprisingly, ...
New screening tool helps identify children at risk
Dec 07, 2009 |
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When a baby is born, new parents often wonder, "Will he be the next President of the United States?" or "Could she be the one to find a cure for cancer?" But the underlying question for many specialists is, "Is this child ...
Brainstorming works best in less specialized efforts, study says
Other Sciences / Social Sciences
5 hours ago |
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Applying brainstorming techniques to new product development works best when the collaboration employs participants from varied specialties gathering to develop a less complex product, according to the Management Insights ...
Study confirms association between tobacco smoke and behavioral problems in children
Dec 09, 2009 |
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The scientists observed that the impact of tobacco smoke was especially detrimental during gestation. The results of the study have been published in the current online issue of the renowned journal Environmental Health Pe ...
New ethical questions are being raised in stem cell research
4 hours ago |
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A groundbreaking discovery two years ago that turned ordinary skin cells back into an embryonic or "pluripotent" state was hailed as the solution to the controversial ethical question that has plagued stem-cell science for ...
Military children face more emotional challenges as parental deployments grow longer, study finds
Dec 07, 2009 |
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Children in military families may suffer from more emotional and behavioral difficulties when compared to other American youths, with older children and girls struggling the most when a parent is deployed overseas, according ...
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