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Science News Archive August 2009


Page 5 of 22

Apple MacBook Pro 14-inch (M4 Pro)

Apple MacBook Pro 14-inch (M4 Pro) powers local ML workloads, large datasets, and multi-display analysis for field and lab teams.

Has northern-hemisphere pollution affected Australian rainfall?

New research suggests that pollution from Asia, Europe and North America may contribute to recent Australian rainfall changes. Human-generated aerosols from the northern hemisphere are thought to drive changes in atmospheric and oceanic circulation, leading to increased rainfall in north-western and central Australia.

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.

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.

Sky & Telescope Pocket Sky Atlas, 2nd Edition

Sky & Telescope Pocket Sky Atlas, 2nd Edition is a durable star atlas for planning sessions, identifying targets, and teaching celestial navigation.

People vary widely in ability to eliminate arsenic from the body

A new study found that people's bodies handle arsenic differently, with some individuals excreting up to 95% of ingested arsenic, while others store it in their bodies, posing a risk to health. The research suggests that existing standards for evaluating human health risks from arsenic may need to be reassessed.

Runaway girls reap strong benefits from nurse interventions

A new study published in the Journal of Adolescent Health found that a nurse intervention program significantly improves the lives of sexually exploited runaway girls. The program reduces trauma, emotional distress, substance use, suicide attempts, and risky sexual behaviors while improving family and school relationships, self-esteem,...

'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.

Apple iPhone 17 Pro

Apple iPhone 17 Pro delivers top performance and advanced cameras for field documentation, data collection, and secure research communications.

The American Phytopathological Society announces 2009 awardees

The American Phytopathological Society recognized outstanding contributions to plant pathology with its 2009 awards. The APS Fellow class of 2009 includes prominent researchers and educators from around the world. Notable winners include Anne E. Dorrance, Charles Mellinger, H. David Shew, and Richard A. Sikora.

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.

Hankering for molecular electronics? Grab the new NIST sandwich

Researchers at NIST have developed a simple method to assemble organic molecules between silicon and metal, overcoming a key obstacle in creating individual molecule switches. This breakthrough could lead to faster, cheaper components and new applications in biosensors.

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.

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.

Nikon Monarch 5 8x42 Binoculars

Nikon Monarch 5 8x42 Binoculars deliver bright, sharp views for wildlife surveys, eclipse chases, and quick star-field scans at dark sites.

Discovery of natural odors could help develop mosquito repellents

Researchers at UC Riverside have identified a novel class of compounds that could pave the way for developing inexpensive and safe mosquito repellents. These odorants, including hexanol and 2,3-butanedione, prevent CO2-sensitive neurons in mosquitoes from functioning.

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.

LEGO toy helps researchers learn what happens on nanoscale

Researchers used a LEGO board with pegs to recreate microscopic activity in lab-on-a-chip devices. By analyzing the motion of beads through the array, they discovered that large particles followed deterministic paths and were influenced by phase locking.

Ant has given up sex completely, report Texas researchers

A team of Texas and Brazilian researchers confirms that the fungus-gardening ant Mycocepurus smithii reproduces without males, with no evidence of male production or sperm storage organs. This makes the species one of the rarest examples of complete asexuality in the animal kingdom.

GQ GMC-500Plus Geiger Counter

GQ GMC-500Plus Geiger Counter logs beta, gamma, and X-ray levels for environmental monitoring, training labs, and safety demonstrations.

New study suggests the brain predicts what eyes in motion will see

Researchers found that brain predicts what eyes in motion will see, even before they move, allowing for a stable visual environment despite retinal image shifts. This remapping process enables continuous representation of locations across eye movement, facilitating the transition between current and expected images.

Risk of death following acute coronary syndromes different for men, women

Women may have a slightly higher risk of death than men in the 30 days following an acute coronary syndrome, but this difference appears to be due to factors such as severity and type of ACS. After adjusting for clinical characteristics and angiographic data, no significant difference in 30-day mortality was found.

Deadly heat waves are becoming more frequent in California

A 2006 heat wave in California killed over 600 people and 25,000 cattle, with temperatures rising to the hottest one percent of historical records. The event was exacerbated by high humidity, which caused heat waves to last longer and fed on themselves until winds changed.

SAMSUNG T9 Portable SSD 2TB

SAMSUNG T9 Portable SSD 2TB transfers large imagery and model outputs quickly between field laptops, lab workstations, and secure archives.

Slow-motion earthquake testing probes how buildings collapse in quakes

Researchers developed a hybrid approach to test how buildings collapse during powerful earthquakes. The new method is safer and far less expensive than traditional shake table tests, allowing for the testing of full-scale buildings. The study's results could help engineers design buildings that are less prone to sustaining damage.

Blood-flow metabolism mismatch predicts pancreatic tumor aggressiveness

A study published in Clinical Cancer Research found that a blood-flow metabolism mismatch in pancreatic tumors predicts poor patient outcome. The researchers used PET imaging to measure blood flow and glucose consumption, revealing a correlation between decreased blood flow and malignant tumors.

Garmin GPSMAP 67i with inReach

Garmin GPSMAP 67i with inReach provides rugged GNSS navigation, satellite messaging, and SOS for backcountry geology and climate field teams.

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.

DJI Air 3 (RC-N2)

DJI Air 3 (RC-N2) captures 4K mapping passes and environmental surveys with dual cameras, long flight time, and omnidirectional obstacle sensing.

Reinterpretation of proximal colon polyps called hyperplastic in 2001

A study reinterpretated proximal colon polyps as hyperplastic in 2001 revealed a significant inter-observer variation among gastrointestinal pathologists. This discrepancy highlights the need for clarification on the pathologic interpretation of serrated colorectal polyps and their clinical significance.

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.

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.

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.

Aranet4 Home CO2 Monitor

Aranet4 Home CO2 Monitor tracks ventilation quality in labs, classrooms, and conference rooms with long battery life and clear e-ink readouts.

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.

UTSA plant biologists publish where their peers are -- on the Web

Researchers at the University of Texas at San Antonio have published an 11-minute video in JoVE to demonstrate their novel hormone extraction technique. The video provides a clear format for communicating complex scientific experiments and has received nearly 3,000 views since its publication.

CalDigit TS4 Thunderbolt 4 Dock

CalDigit TS4 Thunderbolt 4 Dock simplifies serious desks with 18 ports for high-speed storage, monitors, and instruments across Mac and PC setups.

New technology helps Parkinson's patients speak louder

Researchers developed a new technology using ambient sound to aid Parkinson's patients speaking louder and more clearly. The system, which plays background babble noise when the patient begins to speak, shows significant improvement in speech changes after eight weeks of training.

Researchers evaluate resistance training for diabetes prevention

A Virginia Tech-led research team is designing a program to help pre-diabetic adults begin and maintain resistance training. The goal is to improve insulin and glucose metabolism, reducing the risk of diabetes. A five-year study will test theory-based approaches to encourage long-term adherence to resistance training.

Fluke 87V Industrial Digital Multimeter

Fluke 87V Industrial Digital Multimeter is a trusted meter for precise measurements during instrument integration, repairs, and field diagnostics.

Surgical treatment a rare complication of duodenal diverticulum

A rare case of duodenal obstruction after successful embolization for duodenal diverticular hemorrhage was reported. The study highlights the importance of thorough observation of resolving hematomas and conservative treatment before surgery to relieve duodenal fibrotic encasement.

Bridging the political divide across the Gulf of Aqaba

Scientists from Stanford University and their international colleagues use cutting-edge technology to monitor the Gulf of Aqaba's surface currents, shedding light on its complex dynamics. The research helps environmental agencies respond to spills and minimize pollution, while also informing large-scale water projects.

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 ...

Davis Instruments Vantage Pro2 Weather Station

Davis Instruments Vantage Pro2 Weather Station offers research-grade local weather data for networked stations, campuses, and community observatories.

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.

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.

Kestrel 3000 Pocket Weather Meter

Kestrel 3000 Pocket Weather Meter measures wind, temperature, and humidity in real time for site assessments, aviation checks, and safety briefings.