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Science News Archive August 2009 - Page 5


Page 5 of 22

D2 lymphadenectomy improves the long-term survival for patients with node-negative gastric cancer

A study published in World Journal of Gastroenterology found that a large number of dissected lymph nodes in D2 dissection improves long-term survival and reduces recurrence rate for patients with node-negative gastric cancer. The number of resected lymph nodes is a key prognostic indicator, and increasing it leads to better survival o...

SourceWorld Journal of Gastroenterology·JournalWorld Journal of Gastroenterology·DateAug 26, 2009

LLNL research reveals how blast waves may cause human brain injury even without direct head impacts

Researchers at LLNL used hydrodynamic simulations to show that nonlethal blasts can induce skull flexure and generate damaging loads in the brain. The study suggests that armor systems designed for impacts may not be optimal for blast wave protection, highlighting the need for improved helmet design.

SourceDOE/Lawrence Livermore National Laboratory·JournalPhysical Review Letters·DateAug 26, 2009

New molecular markers for tumor aggressiveness in biliary tract cancer

Researchers identified LNγ2, LNβ3, and active MMP7 as molecular markers for tumor aggressiveness in biliary tract cancer. The study found that these markers were associated with tumor progression, depth of invasion, and advanced stage. Down-regulation of MMP7 expression resulted in a significant decrease in cancer cell invasion.

SourceWorld Journal of Gastroenterology·JournalWorld Journal of Gastroenterology·DateAug 26, 2009

How to increase colonoscopy attendance?

A Chinese study establishes a multifaceted barrier-focused intervention program to increase colonoscopy attendance among nonadherent high-risk populations for colorectal cancer screening. The program significantly increased attendance rates, especially among those with objective barriers.

SourceWorld Journal of Gastroenterology·JournalWorld Journal of Gastroenterology·DateAug 26, 2009

'Hedgehog' pathway may hold key to anti-cancer therapy

Scientists have discovered a way to block the growth of human colon cancer cells by targeting the Hedgehog-GLI pathway, preventing tumor growth and metastasis. This breakthrough could provide a new method for treating incurable forms of colon cancer.

SourceWiley·JournalEMBO Molecular Medicine·DateAug 26, 2009

Return of business to New Orleans post-Katrina

A study analyzing business return to New Orleans post-Katrina found that businesses reopening cited damage to physical locations and financing as primary concerns, while those remaining closed ranked levee protection as top concern. The study used repeated telephone surveys of businesses from December 2005 to October 2007.

SourcePLOS·JournalPLOS ONE·DateAug 26, 2009

Employee's loyalty to workplace damaged by unfair treatment

A recent study published in Journal of Management Studies found that employees who experience perceived injustices at work are more likely to suffer from psychological well-being damage and extreme emotional exhaustion. This can lead to decreased job commitment, increased turnover rates, and a general depletion in employee morale.

SourceWiley·JournalJournal of Management Studies·DateAug 26, 2009

Strictly ballroom analysis

Researchers developed a neural network system to classify music genres, such as cha-cha-cha, jive, and tango, with varying degrees of success. The approach combines the strengths of two existing methods and uses a neural network to analyze beat and tempo, outperforming other classification techniques.

SourceInderscience Publishers·JournalInternational Journal of Intelligent Information and Database Systems·DateAug 26, 2009

New ultrasensitive electronic sensor array speeds up DNA detection

Scientists developed a novel electronic sensor array to rapidly detect DNA for disease diagnosis and biological research, with ultrasensitive detection capabilities and cost-effectiveness. The Nanogap Sensor Array technology has the potential to speed up efforts in detecting debilitating diseases such as cancer and infectious viruses.

SourceAgency for Science, Technology and Research (A*STAR), Singapore·JournalJournal of the American Chemical Society·DateAug 26, 2009

New research examines how career dreams die

Researchers found that people cling to their dreams until they're clearly shown the consequences of failure. The study involved students who were told varying levels of threat to their new dreams, with those receiving the strongest threat experiencing higher self-doubt and anxiety, leading them to drop their dream.

SourceOhio State University·JournalSocial Cognition·DateAug 25, 2009

More obesity blues

Researchers from UCLA and Pittsburgh found that obese individuals have a 8% less brain tissue than those with normal weight, while overweight individuals have 4% less tissue. This increased risk is linked to severe brain degeneration and cognitive decline.

SourceUniversity of California - Los Angeles·JournalHuman Brain Mapping·DateAug 25, 2009

Typhoid fever cases in US linked to foreign travel

A study found that typhoid fever cases in the US are often associated with international travel to the Indian subcontinent and are increasingly resistant to common treatments. The majority of cases were linked to travelers who visited friends or family, highlighting the need for improved vaccination coverage and prevention measures.

SourceJAMA Network·JournalJAMA·DateAug 25, 2009

New link between pre-eclampsia and diet

Researchers at the University of Leeds discovered a significant link between pre-eclampsia and dietary ergothioneine, a known antioxidant. The study found elevated levels of this compound in pregnant women with pre-eclampsia, suggesting its potential role in understanding the condition's cause.

SourceUniversity of Leeds·JournalReproductive Sciences·DateAug 25, 2009

Animal sacrifice in Brazilian folk religion

In Brazilian folk religion Candomblé, animal sacrifice plays a crucial role in the believers' requests and desires, believed to 'feed' supernatural deities known as orishas. The practice is fundamental to many religions, including Judaism, Christianity, and Islam.

SourceBMC (BioMed Central)·JournalJournal of Ethnobiology and Ethnomedicine·DateAug 25, 2009

UK public health research center given grant

The University of Kentucky Center for Public Health Systems and Services Research has received a $600,000 grant to create an integrated dataset that will provide researchers with access to critical information to inform translational practice decisions. The dataset will combine survey data from various organizations, enabling users to ...

Post-traumatic stress disorder primary suicide risk factor for veterans

Researchers found that post-traumatic stress disorder (PTSD) is associated with an increased risk of thoughts of suicide in Iraq and Afghanistan war veterans. The study, published in the Journal of Traumatic Stress, indicates that PTSD is a primary risk factor for suicide-related thoughts, even after accounting for other mental disorders.

SourceWiley·JournalJournal of Traumatic Stress·DateAug 25, 2009

Hip fracture rates decline in Canada

Hip fracture rates declined by 31.8% in females and 25% in males between 1985 and 2005, with the largest decrease among individuals aged 55-64 years. The reasons for this decline are unclear, but factors such as overweight and obesity may contribute.

SourceJAMA Network·JournalJAMA·DateAug 25, 2009