(Phys.org)—Research indicates the out-of-Africa spread of humans was dictated by the appearance of favourable climatic windows.
Sep 17, 2012
4.5 / 5 (8)
7
|
(AP) -- More babies were born in the United States in 2007 than any year in the nation's history, topping the peak during the baby boom 50 years earlier, federal researchers reported Wednesday.
Mar 18, 2009
4.3 / 5 (10)
33
The U.S. birth rate has dropped for the second year in a row, and experts think the wrenching recession led many people to put off having children. The 2009 birth rate also set a record: lowest in a century.
Aug 27, 2010
3.5 / 5 (6)
52
(AP) -- A growing number of teen girls say they use the rhythm method for birth control, and more teens also think it's OK for an unmarried female to have a baby, according to a government survey released Wednesday.
Jun 02, 2010
5 / 5 (1)
0
(PhysOrg.com) -- A new study by McMaster University researchers has found low-risk women who have midwives in attendance during birth have positive outcomes regardless of where the delivery takes place.
Sep 18, 2009
4.4 / 5 (7)
0
Fewer births in states such as California may be delaying the annual onset of a common intestinal virus in the southwest, according to epidemiologists. The timing of infectious outbreaks in other locations such as the northeast ...
Jul 16, 2009
not rated yet
0
Implanting single embryos into the wombs of women seeking to boost fertility is more effective and less costly than placing two embryos at a time, a pair of studies released Wednesday found.
Mar 25, 2009
5 / 5 (1)
0
(Phys.org) —An Iowa State University sociologist is not surprised by a recent U.S. Census Bureau report showing a spike in the number of unmarried women giving birth. According to the report, nearly 36 percent of babies ...
May 10, 2013
4.5 / 5 (2)
0
Global population data spanning the years from 1900 to 2010 have enabled a research team from the Autonomous University of Madrid to predict that the number of people on Earth will stabilise around the middle ...
Apr 04, 2013
5 / 5 (9)
15
Projections suggesting the world human population will stop growing around 10 billion people at the end of this century are improbable, according to new research by SFI Postdoctoral Fellow Marcus Hamilton and collaborators.
Mar 20, 2013
not rated yet
0
White people will no longer make up a majority of Americans by 2043, according to new census projections. That's part of a historic shift that already is reshaping the nation's schools, workforce and electorate, and is redefining ...
Dec 12, 2012
4 / 5 (4)
171
Improving water supplies in rural African villages may have negative knock-on effects and contribute to increased poverty, new research published today has found.
Nov 14, 2012
5 / 5 (1)
2
About five years ago, Catherine Tucker was pregnant with identical twins when she encountered a serious medical issue. Her unborn children were diagnosed with twin-to-twin transfusion syndrome, a dangerous ...
Oct 02, 2012
not rated yet
0
Understanding how a species battles to sustain itself in a challenging habitat is a cornerstone of ecological research; now scientists have applied this approach to science itself to discover why women are being driven out ...
Jun 26, 2012
5 / 5 (3)
1
(Phys.org) -- "In biophysical terms, humanity has never been moving faster nor further from sustainability than it is now."
Jun 11, 2012
3.7 / 5 (12)
131
