Brightsurf Science News & Current Events

May 04, 2012
Economics study homes in on factors influencing value of great art
Arzu Aysin Tekindor has never seen

Consortium formed around stem cell research in inland Southern California
Stem cell research laboratories at the University of California, Riverside, Loma Linda University and the California State University at San Bernardino have formed the

Slaughtering animals without prior stunning should be curbed, if not banned
The slaughter of animals for commercial meat supply without stunning them first should at the very least be curbed, if not banned, concludes a former president of the British Veterinary Association in an opinion piece in this week's Veterinary Record.

Different recipes for success in the world of plants
In order to prevail against native plants, non-native plant species develop special strategies.

Hip implant for long-term use
Hip replacement is one of the most frequent operations carried out in Germany.

Sunlight and air powers access to sterile water
Researchers at the University of Hull are developing a way to produce constant supplies of sterile water, powered simply by sunlight and air.

A single stem cell mutation triggers fibroid tumors
Fibroid uterine tumors affect an estimated 15 million women in the United States, causing irregular bleeding, anemia, pain and infertility.

Expensive hospital readmissions linked to health-care-associated infections
New research finds a strong link between healthcare-associated infections and patient readmission after an initial hospital stay.

Preop MRI valuable in detecting additional malignancies in dense & not dense breasts
Newly diagnosed breast cancer patients should undergo a preoperative MRI exam even if their breasts are not dense, a new study indicates.

Scientists identify prostate cancer stem cells among low-PSA cells
Prostate cancer cells that defy treatment and display heightened tumor-generating capacity can be identified by levels of prostate specific antigen (PSA) expressed in the tumor cells, a research team led by scientists at the University of Texas MD Anderson Cancer Center reports in the May 3 edition of Cell Stem Cell.

Beehive extract shows potential as prostate cancer treatment
An over-the-counter natural remedy derived from honeybee hives arrests the growth of prostate cancer cells and tumors in mice, according to a new paper from researchers at the University of Chicago Medicine.

Scientific evidence proves why healers see the 'aura' of people
The results of this study have been published in the prestigious journal Consciousness and Cognition.

'Game-powered machine learning' opens door to Google for music
University of California, San Diego engineers have shown that a computer be taught to automatically label every song on the Internet using sets of examples provided by unpaid music fans.

Colors burst into contemporary architecture
White stopped being the official color of architecture a while ago.

UCLA scientists measure communication between stem cell-derived motor neurons and muscle cells
UCLA researchers have developed a novel system to measure the communication between stem cell-derived motor neurons and muscle cells in a Petri dish.

6 month follow-up of patients with benign MRI-guided breast biopsies may not be necessary
Short term follow-up of patients who have had a negative (benign) MRI-guided vacuum assisted breast biopsy may not be necessary, a new study indicates.

Analyzing energy potential
Sensors, radio transmitters and GPS modules all feature low power consumption.

Ancient volcanic blast provides more evidence of water on early Mars
Georgia Tech assistant professor Josef Dufek's new findings provide more evidence that early Mars was saturated with water and that its atmosphere was considerably thicker, at least 20 times more dense, than it is today.

HPV vaccine completion rate among girls is poor, getting worse
The proportion of insured girls and young women completing the human papillomavirus (HPV) vaccine among those who initiated the series has dropped significantly -- as much as 63 percent -- since the vaccine was approved in 2006, according to new research from the University of Texas Medical Branch (UTMB) in Galveston.

Better prognosis for breast cancer in Germany
How successful is the interdisciplinary treatment of breast cancer? Since 2003, the Breast Center at Heidelberg University Hospital has systematically tracked the course of breast cancer in more than 3,000 patients and, as the first center in Germany, has published these significant prospective results: 86 percent of the patients survived the first five years after onset of treatment, with 80 percent of them remaining disease-free during this period.

Spotlight on Sentinel-2
The vast potential of ESA's upcoming Sentinel-2 satellites came into focus last week at a symposium in Italy on how they will benefit current and future projects that exploit Earth observation data.

Are educators showing a 'positive bias' to minority students?
Rutgers psychology professor Kent Harber's research indicates that public school teachers under-challenge minority students by providing them more positive feedback than they give to white students, for work of equal merit.

Using nanoclays to build better asphalt pavement
Michigan Tech scientist Zhanping You is paving the way for brand-new asphalt blends to fight off cracks, rutting and potholes.

What is your dog thinking? Brain scans unleash canine secrets in Emory study
Emory University researchers in the Emory Center for Neuropolicy have developed a new methodology to scan the brains of alert dogs and explore the minds of the oldest domesticated species.

New technique could identify drugs that help fight broad range of viruses
Results of a new study demonstrate the feasibility of a novel strategy in drug discovery: screening large numbers of existing drugs -- often already approved for other uses -- to see which ones activate genes that boost natural immunity.

MicroRNA controls malignancy and resistance of breast cancer cells
Resistances to drugs are the main reason why breast cancer cannot effectively be fought in many patients.

Study: Men who do load-bearing exercise in early 20s may be shielded from osteoporosis
Young men who play volleyball, basketball or other load-bearing sports for four hours a week or more increase bone mass and might gain protection from developing osteoporosis later in life, according to a new study in the May issue of the Journal of Bone and Mineral Research.

NOAA discovers way to detect low-level exposure to seafood toxin in marine animals
NOAA scientists and their colleagues have discovered a biological marker in the blood of laboratory zebrafish and marine mammals that shows when they have been repeatedly exposed to low levels of domoic acid, which is potentially toxic at high levels.

New Vermont law: Researchers to measure 'genuine progress'
The Vermont legislature passed a bill that directs researchers at the University of Vermont to develop a new way of measuring the health of the state economy.

First-of-its-kind study reveals surprising ecological effects of 2010 Chile earthquake
The reappearance of long-forgotten habitats and the resurgence of species unseen for years may not be among the expected effects of a natural disaster.

New technique uses electrons to map nanoparticle atomic structures
A Brookhaven/Columbia Engineering School team of scientists shows how a form of nanocrystallography can be carried out using a transmission electron microscope -- an instrument found in many chemistry and materials science laboratories.

Comorbidities increase risk of mortality in COPD patients
Comorbidities are common among patients with chronic obstructive pulmonary disease (COPD), and a number of these comorbidities are independently associated with an increased mortality risk, according to a new study.

Hubble to use moon as mirror to see Venus transit
A mottled landscape showing the impact crater Tycho is among the most violent-looking places on our moon.

Study examines necessity of additional imaging in PET/CT oncologic reports
Radiologists and nuclear medicine physicians recommended additional imaging about 30 percent of the time in oncologic PET/CT reports, with about half of those recommendations being unnecessary, a new study shows.

Radiologists study necessity of additional imaging recommendations in PET/CT oncologic reports
Determining the rate of unnecessary imaging can help guide both policymakers and physicians to develop guidelines that would ultimately reduce costs associated with advanced medical imaging.

Plant diversity is key to maintaining productive vegetation
Vegetation, such as a patch of prairie or a forest stand, is more productive in the long run when more plant species are present, results of a new study show.

Nutrient supply after algal bloom determines the succession of the bacterial population
Researchers from the Max Planck Institute in Bremen, along with their co-authors from the University of Greifswald, the Jacobs University, and the Alfred Wegener Institute for Marine and Polar Research, examined an algal bloom in the North Sea and identified the microorganisms involved in the degradation of algal remnants.

New center focuses on sport concussion research and community service
The Center for Sport Concussion Research and Service, a new Penn State Center, will advance research on sport-related concussions and provide services to local collegiate and child athletes in the form of baseline assessments that can aid in diagnosing concussions and tracking recovery.

Protein signal is crucial for accurate control of insect size
Two independent groups of researchers have identified a hormone that is responsible for keeping the growth and development of insects on track.

Early spring means more bat girls
A study on bats by a University of Calgary researcher suggests that bats produce twice as many female babies as male ones in years when spring comes early.

Low testosterone levels could raise diabetes risk for men
Low levels of testosterone in men could increase their risk of developing diabetes, a study suggests.

Scientists aim to kill lung tumors
Lung cancer is the leading cause of cancer death throughout the world.

Karin Melnick receives AMS Centennial Fellowship
Karin Melnick of the University of Maryland has been awarded the prestigious AMS Centennial Fellowship for the 2012-2013 academic year.
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