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Science News Archive April 2007


Page 7 of 17

Strawberry daiquiris -- the extra-healthy cocktail?

Researchers found that treating strawberries with ethanol improves their antioxidant activity and free radical scavenging ability, potentially making them a healthier snack. This discovery has implications for other colored berry fruits like blackberries.

Green tea may help prevent autoimmune diseases

Researchers found significantly less salivary gland damage in a group treated with green tea extract, suggesting a reduction of Sjogren's Syndrome symptoms like dry mouth. Green tea's EGCG component may also suppress inflammation and turn on the body's defense system against TNF-alpha.

Renewable hydrogen energy -- an answer to the energy crisis

A new £4.2 million research project at Imperial College London aims to develop renewable and cost-effective methods of producing hydrogen for fuel cells. The project will explore both biological and chemical solar-driven processes to achieve this goal.

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.

Road traffic accidents: the young people's pandemic

Young males are disproportionately affected by road traffic accidents, with those under 25 nearly three times more likely to die than women in the same age group. The World Health Organisation reports an estimated 1.2 million annual deaths worldwide due to RTAs.

Fewer heart patients need antibiotics before dental procedures

Most dental patients with heart disease no longer need antibiotics before dental procedures to prevent infective endocarditis. New guidelines recommend antibiotics only for patients at greatest risk, including those with artificial heart valves or congenital heart conditions.

New health insurance survey -- Women have trouble affording care needed

A new report by the National Women's Law Center finds that women are more likely to struggle with medical bills and go without needed care due to high healthcare costs. The report also highlights a gender gap in health coverage, with more women than men facing underinsurance or uninsured status.

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.

UCLA/Toronto researchers unlock key to memory storage in brain

A UCLA/University of Toronto team has discovered a protein called CREB controls neuron participation in memory formation, suggesting a new approach for preserving memory in people with Alzheimer's or brain injury. The study found that high levels of CREB lead to more likely storage of memories.

Why some aphids can't stand the heat

Researchers found that a single gene in symbiotic bacteria determines aphid thermal tolerance. The gene's mutation affects heat-shock protein production, leading to reduced reproduction and survival in hot conditions. This discovery highlights the critical role of symbiotic bacteria in insect ecology.

Apple iPhone 17 Pro

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

Molecular signature may identify cisplatin-sensitive breast tumors

Researchers at MGH Cancer Center have discovered a molecular pathway underlying sensitivity to cisplatin in triple-negative breast cancers. The study found that p63 and p73 expression levels can predict cisplatin therapy effectiveness, leading to the design of a clinical trial for patients with advanced triple-negative breast cancer.

OHSU lab finds meth receptor that could lead to therapy

Researchers at OHSU have identified a G protein-coupled receptor called TAAR1 as a key player in the brain's response to methamphetamine. The discovery offers new hope for developing therapies to reverse meth's adverse health effects and reduce addiction, by targeting this newly found receptor.

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.

Oregon team's documentation of Mongolian High Altai gets funding boost

A new grant from the National Endowment for the Humanities will support the development of an interactive Web site and a published Cultural Atlas of the Ancient Mongolian Altai. The project aims to document the region's archaeology, geospatial data, and cultural significance in the face of threats from mining, tourism, and climate change.

New method to directly probe the quantum collisions of individual atoms

The Penn State researchers developed a new method to measure the phase shifts resulting from atomic collisions in ultracold cesium atoms. This technique allows for the detection of s-wave phase shifts independent of atom density, paving the way for breakthroughs in atomic physics and potential applications in Bose-Einstein condensates,...

Map predicting spread of avian flu

A model predicting the probability of infection from one farm to another has been developed by Gert-Jan Boender and colleagues, highlighting two poultry-dense areas in the Netherlands where epidemic spread is possible. The authors conclude that local control measures are unlikely to halt an unfolding epidemic in these regions.

Celestron NexStar 8SE Computerized Telescope

Celestron NexStar 8SE Computerized Telescope combines portable Schmidt-Cassegrain optics with GoTo pointing for outreach nights and field campaigns.

Amur leopard still on the brink of extinction, scientists say

A new census confirms the Amur leopard's precarious survival, with fewer than 35 individuals remaining in the wild. The species is threatened by encroaching civilization, poaching, and climate change, highlighting the need for expanded protected areas and conservation efforts.

Mystery of fossilized trees is solved

An international team of researchers has found evidence of the Earth's earliest forest trees, dating back 385 million years. The discovery includes upright stumps of fossilized trees that reached at least 8 meters in height, forming the first known forests on earth.

LASIK for older adults

A new study from the University of Illinois Chicago found that LASIK surgery is safe and effective for patients aged 40-69 years old, with reliable predictability of correction. The study also highlighted challenges faced by older adults, including difficulty with near vision after LASIK due to presbyopia.

Forming social memories

Researchers have identified a specific region in the frontal cortex as key to recording and learning social information. This discovery may improve understanding of mechanisms behind mental disorders affecting social skills, such as schizophrenia and autism.

GoPro HERO13 Black

GoPro HERO13 Black records stabilized 5.3K video for instrument deployments, field notes, and outreach, even in harsh weather and underwater conditions.

Researchers find that childhood sarcoma increases risk of blood clots

Researchers at the National Cancer Institute found that children and young adults with sarcoma are at increased risk of developing thromboembolic events (blood clots) in their veins. The study found that patients whose cancer had spread beyond the original site were more likely to develop a blood clot.

FSU pushing boundaries with environmentally friendly community

Florida State University is designing a new, 571-acre community called Sky with integrated renewable energy systems and sustainable design. The community will feature geothermal loops, solar collectors, fuel cells, and advanced wastewater treatment facilities to minimize its environmental footprint.

Creality K1 Max 3D Printer

Creality K1 Max 3D Printer rapidly prototypes brackets, adapters, and fixtures for instruments and classroom demonstrations at large build volume.

Common algae helps illustrate mammalian brain electrical circuitry

Duke University researchers engineer mice whose olfactory brain cells 'fire' when exposed to light, enabling real-time monitoring of brain activity. This breakthrough provides a new approach for studying mammalian neural circuitry and has potential applications in treating brain injuries and diseases.

Racing neurons control whether we stop or go

Researchers used physiological data to show how a theoretical model explains behavior in children with attention deficit hyperactivity disorder (ADHD). The study found that the 'go' and 'stop' processes are intricately linked, resolving a long-standing paradox.

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.

Depression: New therapy gives reason for hope

A study at the University of Bonn found that two men and a woman with severe depression experienced significant improvements in their symptoms after receiving deep brain stimulation. The therapy, which targets the nucleus accumbens area of the brain, showed promising results despite the small patient group.

Difficult births in obese women due to uterus failure

A study of 4,000 pregnant women found that almost 1 in 5 overweight women required emergency Caesarean sections due to poor uterine contraction. Obese women experienced excessive bleeding following delivery, which was attributed to poor uterine activity.

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.

UCSF launches study on treatment for prescription drug addiction

The Prescription Opiate Addiction Treatment Study aims to assess the effectiveness of buprenorphine/naloxone combination tablets and different models of drug counseling in patients addicted to prescription opioids. The study will enroll 648 participants and test various treatment approaches to treat addiction to opioid painkillers.

Robotic surgeon to team up with doctors, astronauts on NASA mission

Raven, a mobile surgical robot developed by the University of Washington, will operate in an underwater capsule off the coast of Florida, guided by surgeons in Seattle. The 12-day mission tests current technology for sending remote-controlled surgical robotic systems into space.

1,000 extra ovarian cancer deaths due to HRT in UK since 1991

A study published in The Lancet found that women using Hormone Replacement Therapy (HRT) in the UK are 20% more likely to develop and die from ovarian cancer. Researchers analyzed data from over 948,000 postmenopausal women and found a significant increase in ovarian cancer cases and deaths among HRT users.

Decrease in breast cancer incidence linked to drop in hormone replacement

A sharp decline in breast-cancer incidence in 2003, followed by relative stabilization, is attributed to the drop in hormone-replacement therapy among postmenopausal women. Researchers estimate a 44,000 fewer breast cancers over two years, with the reduction most evident in estrogen-receptor-positive tumors.

Meta Quest 3 512GB

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

Smoking indicator of alcohol misuse

A study by Yale School of Medicine researchers found that cigarette smoking status can be used as a clinical indicator for alcohol misuse, which presents an opportunity for intervention. Non-daily smokers are five times more likely to have a problem with alcohol compared to people who have never smoked.

US critical care delivery system in critical condition

The US critical care delivery system is in critical condition due to a growing mismatch between demand and supply. A new report proposes regionalizing the system to centralize expertise, equipment, and facilities, making services readily available to those most in need.

Scent prediction

An interdisciplinary team predicts the scent intensity of lily-of-the-valley fragrance components using a computer model of their olfactory receptors. The study confirms that electronic surface structures determine the interaction between scented molecules and human scent receptors.

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.

IMS reaction to report on breast cancer incidence in 2003 in US

A 6.7% decrease in breast cancer incidence among US women aged 50+ was reported, likely linked to a decline in hormone therapy use following the Women's Health Initiative study. However, other factors may contribute to this trend, and more research is needed.

Ethanol vehicles pose a significant risk to human health, study finds

A new study by Stanford University atmospheric scientist Mark Z. Jacobson found that ethanol-fueled vehicles increase ozone-related mortalities in the US by about 200 deaths per year compared to gasoline. Nationwide, E85 is likely to increase asthma-related emergency room visits and respiratory-related hospitalizations.

How the brain copes with shifty eyeballs

Researchers pinpointed brain regions critical to piecing together a continuous view of the world. By using an illusion known as boundary extension, they found two brain areas involved in extrapolating scenes and integrating discrete samples of surrounding space.

How genetic malfunction causes a form of retardation

A study published in Neuron reveals that genetic mutations in SHP-2 lead to an imbalance in brain cell development, resulting in mental retardation. The researchers found that the mutation causes neurons to overgrow and inhibits glial cell formation, disrupting neural balance.

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.

Ames Laboratory researchers rethink zinc

Researchers at the Ames Laboratory have discovered a new family of zinc compounds that can be tuned to exhibit physical properties similar to other materials. These compounds, which are over 85% zinc, display extraordinary tunability, allowing scientists to study magnetism and potentially create superconducting materials.

New imaging approach promises insights into multiple sclerosis

Researchers developed a combined imaging method using three microscopic techniques to study the molecular mechanisms of multiple sclerosis. The technique enables the analysis of living tissue, revealing details about astroglial filaments and myelin sheath degradation, which could lead to earlier detection and new treatments.

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.

Device uses solar energy to convert carbon dioxide into fuel

Chemists at UCSD develop a device that captures sunlight, converts it to electrical energy, and splits carbon dioxide into carbon monoxide and oxygen. This process has the potential to reduce greenhouse gas emissions, produce industrial chemicals, and save fuel.

Omega-3 fatty acid may help prevent Alzheimer's brain lesions

A study by UC Irvine scientists found that diets rich in docosahexaenoic acid (DHA) can help prevent the development of Alzheimer's disease later in life. Mice given a DHA-rich diet showed lower levels of tau and beta amyloid, proteins associated with neurofibrillary tangles and plaques.

A change in the wind

Climate model simulations indicate a robust increase in wind shear in the tropical Atlantic, which could counteract global warming's effects on hurricane intensity. The study suggests that increased wind shear may inhibit both hurricane development and intensification.

Nutrients in certain vegetables may provide cancer-fighting benefit

Research suggests that phytochemicals in cruciferous vegetables, such as broccoli and watercress, can stop human prostate cancer cells from growing and inhibit the formation of blood vessels that feed tumors. This study provides promising preliminary evidence for the potential anti-cancer properties of these vegetables.

Sony Alpha a7 IV (Body Only)

Sony Alpha a7 IV (Body Only) delivers reliable low-light performance and rugged build for astrophotography, lab documentation, and field expeditions.