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Science News Archive August 2008 - Page 11


Page 11 of 17

Causes for sexual dysfunction change as people age

A new study reveals that a history of sexually transmitted disease increases the risk of sexual dysfunction in older adults. The study found that physical health and mental health are significant factors contributing to sexual problems in both men and women, with certain demographics experiencing specific challenges.

SourceUniversity of Chicago·JournalThe Journal of Sexual Medicine·DateAug 13, 2008

The pandemic potential of H9N2 avian influenza viruses

Recent H9N2 viruses can transmit to ferrets in direct contact, but aerosol transmission is not observed. A single amino acid residue at the receptor-binding site plays a major role in transmission. The study suggests that establishment and prevalence of H9N2 viruses in poultry pose a significant threat to humans.

SourcePLOS·JournalPLOS ONE·DateAug 12, 2008

Risk assessment plays key role in long-term treatment of breast cancer

A study led by M. D. Anderson Cancer Center found that risk assessment can help determine the probability of breast cancer recurrence, allowing clinicians to make informed decisions about extended therapy. The research analyzed data from 2,838 women diagnosed with Stage I-III breast cancers and treated with adjuvant systemic therapy.

SourceUniversity of Texas M. D. Anderson Cancer Center·JournalJNCI Journal of the National Cancer Institute·DateAug 12, 2008

Towards zero training for brain-computer interfacing

A novel data analysis method has been developed that extracts representative spatial filters for each individual subject, reducing the need for calibration before every session. This approach may pave the way for practical daily use of brain-computer interfacing technology for both patients and healthy users.

SourcePLOS·JournalPLOS ONE·DateAug 12, 2008

Also in the August 12 JNCI

Researchers identified specific HBV genotypes and mutations associated with increased liver cancer risk, including genotype C and basal core promoter mutation A1762T/G1764A. A combination of doxorubicin and zoledronic acid was found to reduce tumor size substantially in a mouse model of breast cancer.

SourceJournal of the National Cancer Institute·JournalJNCI Journal of the National Cancer Institute·DateAug 12, 2008

Researchers examine safety of Internet prescriber service providing erectile dysfunction medications

Researchers compared online prescribing and traditional physician consultation for treating erectile dysfunction, finding that the online system outperformed in patient education and prescription appropriateness. The study concludes that a well-regulated Internet prescriber service can be comparable to traditional medical practice.

SourceMayo Clinic·JournalMayo Clinic Proceedings·DateAug 12, 2008

HIV risk higher among Indian women who are abused by husbands

A study of married Indian women found that those who experienced physical and sexual violence from their husbands had an increased risk of HIV infection. The prevalence of HIV among abused women was approximately four times higher than non-abused women, highlighting the importance of addressing intimate partner violence in preventing H...

SourceJAMA Network·JournalJAMA·DateAug 12, 2008

Changes in work force, not pay, narrowing the gender wage gap

A groundbreaking study by Brown University economist Yona Rubinstein and Casey Mulligan of the University of Chicago reveals that the apparent narrowing of the gender wage gap in recent decades is due to changes in the type of women entering the workforce, not actual pay increases. The research found that growing wage inequality within...

SourceBrown University·JournalThe Quarterly Journal of Economics·DateAug 12, 2008

Case Western Reserve University study finds caregivers of spouses with dementia enjoy life less

A study by Case Western Reserve University found that caregivers of spouses with dementia report sadness, loneliness, and a lack of positive emotions. The research analyzed data from 391 caregivers and 226 non-caregivers, revealing that 25% of caregivers suffered from depression compared to 5% of non-caregivers.

SourceCase Western Reserve University·JournalInternational Psychogeriatrics·DateAug 12, 2008

AGU journal highlights -- Aug. 12, 2008

A recent study predicts a fast rise in scorching days, with temperatures exceeding 40 degrees Celsius by the end of this century. Another record reveals a 1000-year history of hurricane activity in Boston, Massachusetts. Climate zones are also shifting southward in Australia due to warming sea surface temperatures.

SourceAmerican Geophysical Union·JournalGeophysical Research Letters·DateAug 12, 2008

Scientists use old enemy to K.O. cancer

Researchers use ruthenium as a catalyst to increase oxidant levels in infected cells, ultimately destroying cancerous cells. The study offers a promising alternative to traditional cancer treatments, which often adapt quickly to targeted drugs.

SourceUniversity of Warwick·JournalProceedings of the National Academy of Sciences·DateAug 12, 2008

Antarctic climate: Short-term spikes, long-term warming linked to tropical Pacific

A new analysis of ice cores reveals that West Antarctica's climate is influenced by atmospheric and oceanic changes in the tropical Pacific, with dramatic year-to-year temperature swings and a century-long warming trend. The findings show the connection between global warming and periodic events like El Niño.

SourceNational Center for Atmospheric Research/University Corporation for Atmospheric Research·JournalProceedings of the National Academy of Sciences·DateAug 12, 2008

Why an exciting book is just as thrilling as a hair-raising movie

Researchers found that the same brain regions are activated when observing facial expressions of disgust in others and experiencing it oneself. This study suggests that reading a book can elicit emotional responses comparable to those experienced while watching a movie, thanks to the shared brain activity patterns.

SourcePLOS·JournalPLOS ONE·DateAug 12, 2008

New evidence implicates humans in prehistoric animal extinctions

Research by UK and Australian scientists suggests that humans hunted Tasmania's giant kangaroos and marsupial 'rhinos' and 'leopards' until their extinction, contrary to previous climate change theories. The findings provide the first evidence of human involvement in the mass extinction event, which took place around 41,000 years ago.

SourceUniversity of Exeter·JournalProceedings of the National Academy of Sciences·DateAug 11, 2008