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Science News Archive 2008


Page 221 of 240

Gene plays 'Jekyll and Hyde' in brain cancer

A new study has found that a gene called STAT3 can behave differently depending on genetic nuances between individuals, playing a tumor suppressor role in some glioblastoma cases. The discovery has laid the foundation for personalized medicine approaches to treat this devastating brain cancer.

RNA-associated introns guide nerve-cell channel production

A team of researchers at the University of Pennsylvania School of Medicine has identified an important molecular mechanism guiding nerve-cell electrical channels. The discovery suggests that RNA-associated introns play a critical role in regulating gene expression and controlling the number of channel proteins produced.

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.

How crystal becomes a conductor

Researchers used computational modeling to demonstrate how manganese oxide changes from an insulator to a conductor under high pressure. The study sheds light on the behavior of similar minerals deep in the Earth's crust and mantle.

Supplementary approach to malaria

A vitamin A and zinc supplement reduced malaria incidence by 34% in young children, according to a randomized double-blind trial. The supplementation also increased time to onset of malarial symptoms and reduced episode frequency.

Research shows a daily does of beetroot juice can beat high blood pressure

A daily dose of beetroot juice can significantly reduce blood pressure, according to a study published in the American Heart Association journal Hypertension. The research reveals that dietary nitrate, found in beetroot juice, leads to decreased blood pressure by converting into nitrite and then nitric oxide.

Carnegie Mellon gets NSF award

Assistant Professor Jeremy J. Michalek of Carnegie Mellon University has been awarded the National Science Foundation's Faculty Early Career Development Award for his research on public policy and its impact on vehicle efficiency.

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.

Scientists obtain core samples from subsea fault system off Japan

A team of scientists has obtained core samples from a subsea fault system off the coast of Japan, providing new data on how earthquakes are generated. The cores contain over 5,000 samples that will help researchers understand the evolution of the subduction zone and its relationship to earthquake and tsunami activity.

Chemical signature of manic depression discovered by scientists

Researchers identify distinct biochemical profile in patients with bipolar disorder, suggesting a balance of neurotransmitters is disrupted. The study's findings may lead to the development of more effective treatments using mood-stabilizing drugs like lithium and valproic acid.

Carnegie mellon visiting scholar identifes vulnerable areas

A new international study identifies vulnerable areas at risk for abrupt climate change, including the Arctic sea ice and Greenland ice sheet. The researchers warn that these 'tipping elements' may be pushed over a threshold to a radically different climate state, with catastrophic consequences.

Less invasive methods may provide accurate means to determine lung cancer stage

A study suggests that endoscopic ultrasound-guided fine-needle aspiration (EUS-FNA) and its combination with endobronchial ultrasound-guided fine-needle aspiration (EBUS-FNA) can accurately determine lung cancer stage. These minimally invasive methods show high sensitivity rates, potentially replacing traditional surgical procedures.

New devices to boost nematode research on neurons and drugs

Researchers have developed two nanotech-driven tools using soft lithography to study brain-behavior connections and screen new pharmaceuticals for parasitic infections in humans. The devices provide a near-natural environment for nematode movement, enabling the monitoring of individual fluorescent-injected neurons in real-time.

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.

Whole grain diets lower risk of chronic disease

A study by Penn State researchers found that consuming whole grains can lead to significant weight loss and reduced risk of chronic diseases. The study showed that the whole grain group experienced a lower body weight, lower blood pressure, and increased intake of fiber and magnesium compared to the refined grain group.

Dr. Andrew Constable awarded 2008 Pew Fellowship in marine conservation

Dr. Constable will create an ecosystem-based management plan to safeguard baleen whales and other marine life in the Southern Ocean's rapidly-growing krill fisheries. His project aims to promote environmentally sustainable growth of the industry and address concerns over climate change and overfishing.

'Weight training' muscles reduce fat, improve metabolism in mice

Researchers at Boston University found that increasing type II muscle mass reduces body fat and improves metabolic parameters in genetically engineered mice. This study suggests that strength training may be beneficial for overweight individuals and could lead to new treatments for obesity and diabetes.

Apple iPhone 17 Pro

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

DNA 'barcode' identified for plants

A unique DNA gene, matK, has been identified as a potential 'barcode' for plants, allowing for easy identification and cataloging of different species. This discovery could lead to new methods for identifying plant ingredients in traditional medicines and monitoring endangered species.

Older women more susceptible to depression than older men

A new study by Yale School of Medicine researchers found that older women are more prone to depression and less likely to die from it compared to older men. The study, which evaluated 754 individuals aged 70+, found that women were more likely to experience symptoms of depression and remain depressed over time.

What are the long-term causes and consequences for the young homeless?

Research explores the growing impact of homelessness on families, particularly children and youth, highlighting the need for adequate and affordable shelter. The issue examines the consequences of homelessness on young people's lives, underscoring the urgency of addressing this critical issue.

2008 Pew Fellowship in Marine Conservation awarded to Dr. Ussif Rashid Sumaila

Dr. Sumaila will create comprehensive databases on the cost and ecological impact of commercial fishing globally, providing evidence for smarter policymaking concerning fisheries management worldwide. He aims to gather extensive information on social and economic drivers of overfishing and its impact on marine conservation.

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.

Smoking marijuana associated with increased risk for gum disease

Regular marijuana use in young adulthood is associated with a higher risk of developing periodontal disease, according to the study. Cannabis exposure groups showed significant increases in periodontal attachment loss and new attachment loss compared to non-users.

Don't blame the trees: Social factors, not forests, dictate disease patterns

A new study published in PLOS Neglected Tropical Diseases found that social marginalization is a stronger predictor of American Cutaneous Leishmaniasis (ACL) incidence than deforestation. The research showed that socially marginalized human populations are more vulnerable to infection, even in highly deforested counties.

Heavy marijuana use linked to gum disease

A recent study has found that heavy marijuana use is associated with an increased risk of developing periodontal disease. The study, which tracked over 900 individuals, found that frequent cannabis use since age 18 was linked to more than one-third of new cases of gum disease between ages 26 and 32.

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.

Plan expedites alternatives to animal testing

The new plan aims to reduce, refine and replace animal use in research and regulatory testing through partnerships with industry and stakeholders. It emphasizes the development of predictive systems using new technologies to minimize animal use.

Anker Laptop Power Bank 25,000mAh (Triple 100W USB-C)

Anker Laptop Power Bank 25,000mAh (Triple 100W USB-C) keeps Macs, tablets, and meters powered during extended observing runs and remote surveys.

Drug fights cystic fibrosis

Researchers at the University of Alabama at Birmingham found that PTC124 restored normal function in up to 29 percent of abnormal cystic-fibrosis protein cases. The drug works by rescuing faulty proteins that lead to illnesses, including cystic fibrosis and over 2,400 genetic diseases.

Why do earthquakes stop?

Researchers understand that a smooth decrease in stress at the end of a primary fault reduces the likelihood of an earthquake jumping to another fault. This study highlights the importance of slip gradient and rupture front acceleration in determining fault jump probability.

Obesity may be wired in the brain, rat study suggests

Researchers found that obese rats have abnormalities in brain regions critical for appetite control, including reduced responsiveness to the hunger-suppressing hormone leptin. This suggests that obesity may be wired into the brain from early life, making it challenging to reverse with exercise and diet alone.

Celestron NexStar 8SE Computerized Telescope

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

Feed the birds: Winter feeding makes for better breeding

Research by the University of Exeter and Queen's University Belfast shows that providing extra food to garden birds in winter makes for a more successful breeding season in the spring. Birds that receive extra food, such as peanuts, lay eggs earlier and produce more fledglings.

Researchers find less invasive, highly accurate methods

Researchers at Mayo Clinic have developed a new technique using two small flexible tubes to stage lung cancer, achieving a 93% accuracy rate in finding malignant lymph nodes. This method is less invasive and more precise than traditional surgical methods, allowing patients to recover the same day.

Chronic pain harms the brain

A study by Northwestern University's Feinberg School of Medicine found that chronic pain disrupts the equilibrium of the brain's regions, leading to permanent damage. This constant firing of neurons can alter connections and even cause death.

Hand-held computers prod older adults to exercise more, Stanford study shows

A Stanford study found that specially programmed PDAs can prod middle-aged and older Americans into increasing their physical activity levels by approximately five hours each week. The devices provided reminders and feedback to help participants set goals and track progress, leading to a significant increase in exercise frequency.

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.

Avian origins: new analysis confirms ancient beginnings

A new study using molecular genetic data confirms that modern birds originated more than 100 million years ago, contradicting earlier fossil-based estimates of around 60 million years ago. The analysis suggests that both the fossil record and molecular clock methods have limitations in dating biological events.

'T-ray' breakthrough signals next generation of security sensors

Researchers at Imperial College London have developed a new type of sensor that uses T-rays to detect explosives and poisons. The technology guides the radiation along a specially designed surface, increasing detection sensitivity and potentially revolutionizing security screening.

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.

Argonne breakthrough may revolutionize ethylene production

Scientists at Argonne National Laboratory have developed an environmentally friendly technology to produce ethylene from ethane streams by removing pure hydrogen, significantly reducing greenhouse gas emissions. The new membrane reactor enables the reaction to feed itself, making it a clean and energy-efficient way of producing ethylene.

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.

New hospital standards needed for pediatric flu vaccines

A new study published in Pediatrics found that 23% of children hospitalized with influenza had a previous hospitalization during the most recent flu-vaccine season. This suggests that providing in-hospital vaccinations to those at highest risk may aid in reducing rates of pediatric hospitalization for influenza.

Elsevier to publish the Journal of the Korean Statistical Society from 2008

The Journal of the Korean Statistical Society will be published by Elsevier starting from 2008, with an international editorial board and increased availability on ScienceDirect. The journal publishes original research articles on statistics and probability theory, as well as innovative applications and current topics.

Gas 'finger' points to galaxies' future

Researchers have discovered a giant hydrogen gas finger in the Milky Way Galaxy, which may indicate that nearby galaxies, such as the Large and Small Magellanic Clouds, will eventually merge with our Galaxy. The study provides valuable insight into the galaxies' fate using CSIRO radio telescopes.

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.

Hidden art could be revealed by new terahertz device

Researchers at the University of Michigan have developed a new terahertz device that can reveal hidden artworks beneath layers of plaster or paint in centuries-old buildings. The device uses pulses of terahertz radiation to detect subtle changes in material, allowing for non-destructive imaging of artworks.

Former substance abusers rarely relapse after organ transplantation

A meta-analysis found that former substance abusers have a low rate of relapse after organ transplantation, with significant associations between relapse and poor social support and family alcohol history. The study included over 3,600 individuals who received transplants and examined the rates of alcohol and drug relapse.

'Tipping points' could come this century

Researchers have identified nine key components of the Earth's climate system at risk of passing a tipping point, with some elements projected to undergo major transitions within the next 100 years. The study highlights the need for early warning systems and caution against complacency in addressing climate change.

Breastfeeding now safer for infants of HIV-infected mothers

A study found that a low-dose regimen of nevirapine significantly reduced the risk of HIV transmission to breast-feeding infants, with a 40% decrease at 6 weeks and 33% decrease at 6 months. The extended-nevirapine regimen is considered safe and shows promise for preventing sexual transmission of HIV.

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.