News tagged with developmental

Toxic mercury, accumulating in the Arctic, springs from a hidden source

(Phys.org) -- Environmental scientists at Harvard have discovered that the Arctic accumulation of mercury, a toxic element, is caused by both atmospheric forces and the flow of circumpolar rivers that carry ...

Space & Earth / Earth Sciences

created May 21, 2012 | popularity 3.7 / 5 (3) | comments 0 | with audio podcast

Bridging the gender-gap in maths

(Phys.org) -- A concerning gender-gap exists in career aspirations among Australian youth across science, technology, engineering, and mathematics (STEM) fields, a new study has found.

Other Sciences / Social Sciences

created May 15, 2012 | popularity 2.3 / 5 (3) | comments 0

Purple sea urchin metamorphosis controlled by histamine

Now that hay fever season has started, sufferers are well aware of the effect of histamines. However it is easy to forget that histamine is also a neurotransmitter involved in controlling memories, regulating ...

Biology / Plants & Animals

created Apr 26, 2012 | popularity 4 / 5 (1) | comments 0

Study shows developing organisms can identify and fix abnormalities in head and face

Developmental biologists at Tufts University have identified a "self-correcting" mechanism by which developing organisms recognize and repair head and facial abnormalities. This is the first time that such ...

Biology / Other

created Apr 25, 2012 | popularity 4 / 5 (2) | comments 0

World's first handmade cloned transgenic sheep born in China

Chinese scientists from BGI together with the Institute of Genetics and Developmental Biology, Chinese Academy of Sciences (CAS), and Shihezi University, Xinjiang province, made a significant breakthrough in animal cloning. ...

Biology / Biotechnology

created Apr 19, 2012 | popularity 5 / 5 (1) | comments 4

Meat eating led to earlier weaning, helped humans spread across globe

When early humans became carnivores, their higher-quality diet allowed mothers to wean babies earlier and have more children, with potentially profound effects on population dynamics and the course of human evolution, according ...

Biology / Plants & Animals

created Apr 18, 2012 | popularity 4.2 / 5 (6) | comments 0 | with audio podcast

Concerns grow over children using tablet computers

Electronic tablets like the iPad are a revolutionary educational tool and are becoming part of childhood, but should be watched carefully so that overuse doesn't lead to learning or behavioral problems, experts ...

Technology / Other

created Mar 29, 2012 | popularity 3.3 / 5 (3) | comments 3

Plug 'leaks,' create 'cradle to career' education system to meet world challenges: Top US educator

Plugging major "leaks" of students exiting formal education prematurely is a top priority in all countries -- developed and developing alike -- to successfully address a suite of problems confronting humanity in decades to ...

Other Sciences / Social Sciences

created Feb 29, 2012 | popularity not rated yet | comments 0

Family and peer relationships essential to Mexican-American college students' success

Hispanics are enrolling in the higher education system at a greater rate than ever, yet they are less likely than their non-Hispanic peers to enter college or earn degrees, according to the Pew Hispanic Center. A new study ...

Other Sciences / Social Sciences

created Feb 27, 2012 | popularity not rated yet | comments 1

Obama changed racial identity of black students

(PhysOrg.com) -- Barack Obama's historic election in 2008 stimulated individual and national reflection on race and changed African-American college students' perceptions of being black, reports a new Cornell study published ...

Other Sciences / Social Sciences

created Feb 17, 2012 | popularity 3 / 5 (5) | comments 2

Scientists discover molecular secrets of 2,000-year-old Chinese herbal remedy

For roughly two thousand years, Chinese herbalists have treated Malaria using a root extract, commonly known as Chang Shan, from a type of hydrangea that grows in Tibet and Nepal. More recent studies suggest that halofuginone, ...

Chemistry / Biochemistry

created Feb 12, 2012 | popularity 4.5 / 5 (28) | comments 29 | with audio podcast

Bush embryonic stem cell lines different from newly derived cell lines

Established human embryonic cell lines, including those approved for federal research funding under former President George W. Bush, are different than newly derived human embryonic stem cell lines, according to a study by ...

Biology / Cell & Microbiology

created Dec 01, 2011 | popularity 5 / 5 (3) | comments 0 | with audio podcast

Molecular barcodes -- identification of 16 new species of Caenorhabditis

Caenorhabditis are usually thought of as soil nematodes, happily living in compost heaps. The famous (scientifically speaking) Caenorhabditis elegans has provided a wealth of information about developmental processes and ce ...

Biology / Evolution

created Nov 21, 2011 | popularity not rated yet | comments 0

Inadequate supply of protein building blocks may explain pregnancy failures in bovine cloning experiments

Amino acids, the building blocks of proteins, are essential to support the normal growth of a developing embryo and the placenta. An insufficient supply of amino acids in the mother's uterus caused by abnormal ...

Biology / Biotechnology

created Oct 26, 2011 | popularity not rated yet | comments 0

Regulatory process for organ scaling discovered

A new study has shed light on the process by which fruit flies develop with their body proportions remaining constant. The study, conducted by the research group of Professor Markus Affolter at the Biozentrum of the University ...

Biology / Plants & Animals

created Oct 25, 2011 | popularity not rated yet | comments 0