Brightsurf Science News & Current Events

August 17, 2014
Study finds range of skills students taught in school linked to race and class size
Pressure to meet national education standards may be the reason states with significant populations of African-American students and those with larger class sizes often require children to learn fewer skills, finds a University of Kansas researcher.

Gorges are eradicated by downstream sweep erosion
A fast new mechanism drives the process of fluvial erosion.

Study suggests federal law to combat use of 'club drugs' has done more harm than good
A federal law enacted to combat the use of 'club drugs' such as ecstasy -- and today's variation known as molly -- has failed to reduce the drugs' popularity and, instead, has further endangered users by hampering the use of measures to protect them.

Risky situations increase women's anxiety, hurt their performance compared to men
Risky situations increase anxiety for women but not for men, leading women to perform worse under these circumstances, finds a study to be presented at the 109th Annual Meeting of the American Sociological Association.

Suspect gene corrupts neural connections
Researchers have demonstrated in patients' cells how a rare mutation in a suspect gene corrupts the turning on and off of dozens of other genes underlying synapses -- the connections between neurons.

FDA-approved drug restores hair in patients with alopecia areata
Researchers at Columbia University Medical Center have identified the immune cells responsible for destroying hair follicles in people with alopecia areata, a common autoimmune disease that causes hair loss, and have tested an FDA-approved drug that eliminated these immune cells and restored hair growth in a small number of patients.

Epigenetic breakthrough bolsters understanding of Alzheimer's disease
The study found that chemical modifications to DNA within the ANK1 gene are strongly associated with measures of neuropathology in the brain.

BGRF announces OncoFinder algorithm for reducing errors in transcriptome analysis
The BGRF proposes a new concept for signalome-wide analysis of changes in intracellular pathways, called OncoFinder, which allows for accurate and robust cross-platform analysis of gene expression data.

New Stanford research sheds light on how children's brains memorize facts
As children learn basic arithmetic, they gradually switch from solving problems by counting on their fingers to pulling facts from memory.

Most temporary workers from Mexico no better off than undocumented workers
Many politicians see the temporary worker program in the US as a solution to undocumented immigration from Mexico.

DNA methylation involved in Alzheimer's disease
A new study led by researchers at Brigham and Women's Hospital and Rush University Medical Center, reveals how early changes in brain DNA methylation are involved in Alzheimer's disease.

8,000-year-old mutation key to human life at high altitudes
Tibetans thrive in the thin air of the Tibetan Plateau, an environment in which others struggle to survive in.

Ultrasound imaging of chitosan nerve conduits that bridge sciatic nerve defects in rats
New simple and effective methods are needed to better evaluate the outcomes of repair using nerve conduits in vivo.

The double threat of climate and land use change enhances risks to biodiversity
Combined effects of climate and land use change may intensify the exposure of species and ecosystems to global change.

Virginity pledges for men can lead to sexual confusion -- even after the wedding day
Young men receiving support after they pledge to abstain from sex until marriage can find themselves without advisers and help once they do marry.

New home for an 'evolutionary misfit'
One of the most bizarre-looking fossils ever found -- a worm-like creature with legs, spikes and a head difficult to distinguish from its tail -- has found its place in the evolutionary tree of life, definitively linking it with a group of modern animals for the first time.

Stem cells reveal how illness-linked genetic variation affects neurons
A genetic variation linked to schizophrenia, bipolar disorder and severe depression wreaks havoc on connections among neurons in the developing brain, a team of researchers reports.

'Cavity protection effect' helps to conserve quantum information
Two different quantum systems are being coupled at the Vienna University of Technology to create a powerful hybrid quantum system.

Fascinating rhythm: Light pulses illuminate a rare black hole
Astronomers have accurately measured -- and thus confirmed the existence of -- a rare intermediate-mass black hole about 400 times the mass of our sun in a galaxy 12 million light years from the Milky Way.

A shift in the code: New method reveals hidden genetic landscape
With three billion letters in the human genome, it seems hard to believe that adding or removing a base could have much of an effect on our health.

Stuck in neutral: Brain defect traps schizophrenics in twilight zone
People with schizophrenia struggle to turn goals into actions because brain structures governing desire and emotion are less active and fail to pass goal-directed messages to cortical regions affecting human decision-making, new research reveals.

Microchip reveals how tumor cells transition to invasion
A microscopic obstacle course of carefully spaced pillars enables researchers to observe cancer cells directly as they break away from a tumor mass and move more rapidly across the microchip.

An inside-out vein graft filled with PRP for repair of a short sciatic nerve defect
Platelet-rich plasma containing various growth factors can promote nerve regeneration.
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