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Science News Archive 2008


Page 98 of 240

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.

Green roofs differ in building cooling, water handling capabilities

A recent study by The Lady Bird Johnson Wildflower Center at the University of Texas at Austin found significant variations in green roof performance across six manufacturers. Green roofs were found to cool buildings' interiors by up to 21% and capture rainwater during downpours, but differences varied greatly among products.

Apple iPhone 17 Pro

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

Long-term care workers struggle with elderly population boom

The growing demand for long-term care services is straining the workforce, with workers lacking support in pay and work relationships. The studies found that recruitment and retention are industry-wide problems, but also discovered that older people can play a role in addressing these issues.

'Erasing' drug-associated memories may stop drug addiction relapses

Researchers at the University of Cambridge have discovered that disrupting or erasing memories associated with drug use during recall can prevent relapse in recovering drug abusers. By blocking a brain chemical receptor important to learning and memory, scientists reduced drug-seeking behaviors in rats for up to four weeks.

Nature or nurture -- Are you who your brain chemistry says you are?

A new PET study reveals a direct correlation between hereditary personality traits, particularly reward dependency, and brain chemistry. Individuals with high reward dependence have higher opiate receptor binding in the ventral striatum, associated with increased cravings and addictive behavior.

Dying frogs sign of a biodiversity crisis

Researchers from UC Berkeley argue that devastating declines of amphibians worldwide signal a biodiversity disaster. The study highlights the impact of chytridiomycosis, habitat constriction, and pollution on frog populations, contributing to a sixth mass extinction event.

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.

Nano vaccine for hepatitis B shows promise for third world

A new nano vaccine for hepatitis B has been developed to address the drawbacks of current vaccines, which require refrigeration and can cause side effects. The vaccine uses a needle-free nasal delivery method and has been shown to be effective in producing strong immune responses in animal studies.

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.

Apple Watch Series 11 (GPS, 46mm)

Apple Watch Series 11 (GPS, 46mm) tracks health metrics and safety alerts during long observing sessions, fieldwork, and remote expeditions.

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...

Women in India abused by husbands at far greater risk for HIV infection

A new study reveals married Indian women who experience physical and sexual abuse are approximately four times more likely to become infected with HIV than those not abused. The study highlights the importance of addressing intimate partner violence in preventing HIV transmission among women in India.

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.

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...

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.

Meta Quest 3 512GB

Meta Quest 3 512GB enables immersive mission planning, terrain rehearsal, and interactive STEM demos with high-resolution mixed-reality experiences.

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.

Apple AirPods Pro (2nd Generation, USB-C)

Apple AirPods Pro (2nd Generation, USB-C) provide clear calls and strong noise reduction for interviews, conferences, and noisy field environments.

Study reveals surprising details of the evolution of protein translation

A new study reveals that transfer RNA's (tRNA) dual functions of reading the genetic blueprint and adding amino acids to proteins evolved independently. The findings suggest that these functions were acquired at different points in time, with protein synthesis preceding the refinement of the genetic code.

Climate change may boost Middle East rainfall

New research suggests that climate change may increase Middle East rainfall by up to 50% in the Euphrates-Tigris watershed, contrary to previous projections. This could alleviate agricultural challenges and reduce food shortages.

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.

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.

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.

Diamond conference at the Goethe University

The 9th International Kimberlite Conference at the Goethe University Frankfurt explores the science of diamonds, their inclusions, and their significance for geoscientists. The conference features over 500 participants from 37 countries, with a focus on basic scientific research, diamond production, and industry.

New breastfeeding study shows most moms quit early

A new national study found that only 36% of babies are breastfed through six months, well short of the federal government's goal. Breastfeeding promotion programs encourage women to start but often fail to provide support to continue.

Cardiac resynchronization: Race, age, geography matter, study shows

A recent study found significant racial, age and geographic disparities in the use of cardiac resynchronization therapy (CRT), a treatment for heart failure. The research examined nearly 34,000 hospital admissions and discovered that CRT was underutilized in certain populations, such as older patients and those from the Northeast.

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.

Sound adds speed to visual perception

A recent study in monkeys found that auditory stimulation directly improves visual perception without involving higher brain areas. The researchers recorded neuronal responses and measured latency, showing a 5-10% decrease in response time when visual signals were weaker, suggesting the auditory cue speeds up the response.

Scientists call for trial of 'hen harrier ceiling'

Two scientists call for a large-scale trial of a 'ceiling' on hen harrier numbers in grouse moors to end long-standing conflicts. The proposal aims to find a compromise between conservationists and grouse managers, while also improving the conservation status of harriers.

New insight into most common forebrain malformation

The study sheds light on the complex interactions between genes and environmental factors that cause holoprosencephaly, a developmental malformation affecting the anterior brain and face. Researchers found that a gene called Six3 plays a crucial role in regulating fetal brain development.

Low vitamin D levels pose large threat to health

Researchers found a 26% increased risk of death among individuals with low blood levels of vitamin D. The study suggests that adequate vitamin D levels may be crucial in preventing cardiovascular disease.

Apple iPad Pro 11-inch (M4)

Apple iPad Pro 11-inch (M4) runs demanding GIS, imaging, and annotation workflows on the go for surveys, briefings, and lab notebooks.

Proton pump inhibitors increase risk of bone fractures

Patients taking proton pump inhibitors for 7 years or more are at higher risk of osteoporosis-related fractures. The study found a significant increase in hip fracture risk after 5 years and any fracture risk after 7 years of continuous exposure.

UCR graduate student discovers, names bacterium linked to psyllid yellows

A UCR graduate student has discovered a new bacterial pathogen, Candidatus Liberibacter psyllaurous, closely related to citrus greening disease, that causes yellowing of tomato and potato leaves. The bacterium is vectored by the tomato/potato psyllid into host plants, resulting in yield losses up to 85% in commercial crops.

Running slows the aging clock, Stanford researchers find

A new study from Stanford University School of Medicine tracked 500 older runners for over 20 years, finding that regular running delays disability and reduces the risk of early death. The study's findings support the theory that 'comparing morbidity' - compressing the period of declining health - can extend high-quality life.

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.

Large reservoir of mitochondrial DNA mutations identified in humans

A study published in the American Journal of Human Genetics reveals a significant presence of mitochondrial DNA mutations in the general population. Researchers found that at least 1 in 200 individuals harbor pathogenic mitochondrial DNA mutations, which may lead to diseases such as muscle weakness and diabetes.

Study finds more PSA screening awareness needed among high-risk groups

A study published by researchers at Duke University Medical Center found that only one-fifth of men under age 50 reported undergoing a PSA test in the previous year. Black men and men with a family history are disproportionately affected, highlighting the need for increased awareness and screening efforts.

1 in 5 young men has had recent prostate cancer test

A study found that one in five men in their 40s have undergone a PSA test within the previous year. Young black men are more likely than young white men to have been screened. The study also revealed that younger Hispanic men and those with higher household income and education level were more likely to undergo testing.

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.

Signs of Alzheimer's disease may be present decades before diagnosis

Researchers found that individuals with lower educational achievement and smaller head sizes were more likely to develop Alzheimer's disease, suggesting an early sign of the illness. The study suggests that brain damage related to Alzheimer's may begin earlier in life, compromising intellectual ability and leading to reduced education.

Bugs put the heat in chili peppers

A new study reveals that chili peppers' spiciness is a defense mechanism against microbial fungus that destroys seeds. The pungency acts as a unique defense, slowing down microbial growth and protecting the plant's progeny.

Childhood brain tumor traced to normal stem cells gone bad

Researchers at Dana-Farber Cancer Institute and UCSF have uncovered new origins for childhood brain tumors, suggesting that targeting the mutated cell-signaling pathway may lead to more effective treatment approaches. The findings hint that not all patients' tumors may be born from the same cells.

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.

Designer RNA fights high cholesterol, researchers find

Researchers have discovered a single dose of small interfering RNA (siRNA) can significantly reduce cholesterol levels in rodents, with effects lasting for weeks. The siRNA works by blocking the production of PCSK9, a protein that raises LDL cholesterol, and has shown promise in nonhuman primates as well.

Alternative energy hits the road

Researchers at Worcester Polytechnic Institute have created a solar collector system that can harness heat from asphalt roads and parking lots to generate electricity and hot water. The technology has the potential to reduce urban 'heat island' effects and provide a cost-effective source of renewable energy.

Aspirin, acid blocker a-day keeps GI bleeding

A U-M study finds that proton pump inhibitors (PPIs) are a cost-effective way to prevent upper GI bleeding in patients taking aspirin for cardiac events. Starting PPI therapy at age 50 or older is estimated to be highly cost-effective, while starting at younger ages may only be marginally so.

Cognitive problems associated with diabetes duration and severity

A study published in Archives of Neurology found that individuals with mild cognitive impairment are more likely to develop diabetes, have longer durations of diabetes, and experience greater severity. Poor blood glucose control over time may lead to neuronal damage, contributing to cognitive impairment.

Rigol DP832 Triple-Output Bench Power Supply

Rigol DP832 Triple-Output Bench Power Supply powers sensors, microcontrollers, and test circuits with programmable rails and stable outputs.

Greater response to placebo in children than in adults

A systematic review of antiepileptic drugs found that children with drug-resistant partial epilepsy have a greater response to placebo treatments compared to adults. This suggests that clinical trials in children require careful design and reporting to provide valid results.

Egg P bodies protect maternal gene messages

Researchers found that egg P bodies lack degradation proteins Pat1 and DCAP-2 to safeguard maternally-derived gene messages until fertilization. The specialized P bodies interact with each other, suggesting they exchange mRNAs.