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Science News Archive January 2009


Page 10 of 19

Baffling the body into accepting transplants

Researcher Stacey Walters finds that boosting BAFF levels in mice can alter their immune systems to accept tissue transplants. Increased B cells stimulate T regulatory cells, controlling killer cells and preventing rejection.

Universal infant hepatitis B immunization recommended

Global epidemiological studies suggest one-third of chronic hepatitis B infections are acquired during infancy and early childhood. Universal infant immunization is offered in most countries (98%) and has reduced incidence rates in provinces that adopted the program.

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.

New imaging method lets scientists 'see' cell molecules more clearly

Researchers have developed a new technique called liquid STEM that enables the imaging of individual molecules in biological cells, with improved resolution and speed compared to existing methods. This innovation has potential applications in energy science and the development of molecular probes.

Socially active and not easily stressed? You may not develop dementia

A study of 506 older adults found that those who were socially active, outgoing, and calm had a 50% lower risk of developing dementia compared to those who were isolated and prone to distress. Lifestyle factors can be modified to reduce dementia risk, offering hopeful news for those nearing retirement age.

Virtual communities may provide valuable support for psoriasis patients

Psoriasis affects 0.6-4.8% of the world's population, impairing financial status and well-being. Online support groups provide valuable resources, anonymity, and improved quality of life for patients. The study found that 49.5% of participants perceived improvements in psoriasis severity since joining an online community.

Scientific sub makes deep-sea discoveries

A four-week expedition to explore the deep ocean south-west of Tasmania has revealed new species of animals, including a bizarre carnivorous sea squirt and giant sponges. The survey also found vast fields of fossil corals dated to over 10,000 years old, providing ancient climate data for models of regional and global climate change.

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.

Bleeding hearts revealed with new scan

Researchers capture images of bleeding inside heart muscle after heart attack using MRI scans, finding correlation between bleeding and extent of heart damage. Patients with larger heart attacks show more significant bleeding and poorer recovery chances.

'Warrior gene' predicts aggressive behavior after provocation

Researchers discover that individuals with low-activity MAOA gene display higher levels of aggression in response to provocation, particularly when faced with significant financial loss. The study suggests genetic influences on aggression and punishment behavior, questioning the altruistic punisher theory.

Infra red spotlights crystal growth

Engineers at the University of Leeds developed a technique using infra-red spectroscopy to analyze chemical processes, enabling real-time monitoring of supersaturation levels required for crystallization. This can help predict optimum crystal structure conditions and improve pharmaceutical manufacturing efficiency.

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.

Major agricultural initiative to benefit millions of South Asian farmers

The Cereal Systems Initiative for South Asia (CSISA) aims to increase grain production by 5 million tons annually, benefiting six million poor rural households. The project will focus on sustainable cereal production in India, Pakistan, Bangladesh, and Nepal through the development of new crop varieties and technologies.

Survey: Scientists agree human-induced global warming is real

A survey of 3,146 earth scientists found consensus on the reality of climate change, with climatologists showing strongest agreement. Petroleum geologists and meteorologists were among the biggest doubters, but most still acknowledge human involvement in global warming.

Embargoed news from Annals of Internal Medicine

Bariatric surgery rapidly improves insulin action, prompting adjustments to diabetic regimens. Genetic testing for heart disease is questioned as a reliable predictor of cardiovascular events, with traditional risk factors proving sufficient. Researchers advocate for increased clinical vigilance in methadone patients to reduce sudden c...

Food advertisements in your magazine: How healthy are they?

Researchers at Newcastle University discovered that food adverts in popular UK magazines often feature sugary and salty products, despite promoting a healthier lifestyle. The study analyzed 30 widely-read weekly magazines and found that nearly every one contained unhealthy food options.

Infidelity produces faster sperm

A study by Uppsala University researchers found that females' promiscuity leads to males producing faster and larger sperms. The competition among sperms influences various characteristics, including size and speed.

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.

Study compares 2 nonsurgical treatments for reflux disease

Two non-surgical treatments for gastroesophageal reflux disease (GERD) have been found to be effective in reducing medication use and improving symptoms, according to a recent study. Radiofrequency therapy appears effective for reducing heartburn and cough, while full-thickness plication may be beneficial for patients with regurgitation.

Collaborative learning across multiple institutions

A collaborative research course taught at one university led to a global collaboration among faculty members from three universities, resulting in significant increases in communication skills and subject matter knowledge. Students reported improved understanding of how communication fits into collaborative problem-solving and anticipa...

'Smart' fridges stay cool by talking to each other

Researchers at CSIRO Australia have developed smart fridges that can negotiate the most energy-efficient way to keep food cold, reducing electricity consumption and greenhouse gas emissions. The fridges work as a network, sharing energy provided by renewable sources like solar panels or wind turbines.

Predicting politics: Professors model prediction markets

A Northwestern University team created a model of how prices fluctuate in political prediction markets, revealing that partisan feeling can significantly impact trading. The researchers found that traders' emotions played a crucial role in the market's behavior, especially during the 2000 presidential election. By understanding these d...

Apple iPhone 17 Pro

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

Rethinking the genetic theory of inheritance

Researchers at CAMH have detected evidence that DNA is not the only carrier of heritable information, with epigenetic factors playing a significant role. This finding challenges traditional genetics principles and may provide new insights into human disease causes.

A further study of Helicobacter pylori reducing gastric blood flow

Researchers investigated the mechanisms behind reduced gastric mucosal blood flow caused by H. pylori extracts, finding a nerve- and iNOS-mediated pathway involved. The study revealed that H. pylori extracts decrease gastric mucosal blood flow by approximately 30% in mice.

What is the risk factor for gastric cancer in a Costa Rican?

Research in Costa Rica found that H. pylori infection, particularly the status of cagA and vacA genotype distribution, plays a major role in gastric cancer incidence rate variability. Gastric atrophy and intestinal metaplasia were more common in patients with high GCIR.

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.

The heart disease mutation carried by 60 million

A genetic study found that 4% of Indian subcontinent populations carry a MYBPC3 mutation, associated with a high risk of heart problems. Researchers identify a potential solution through early screening and lifestyle modifications.

New step in DNA damage response in neurons discovered

Researchers have identified a crucial biochemical step involved in nerve cells' response to DNA damage. Cdk5 activation is necessary before ATM can function in neurons, suggesting it as a potential drug target for neurodegenerative diseases. This discovery sheds light on the underlying mechanisms of ataxia telangiectasia and other neur...

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.

Study links water pollution with declining male fertility

New research reveals a connection between water pollution and declining male fertility, with anti-androgenic chemicals identified as key players. The study suggests that exposure to these chemicals may contribute to reproductive problems in humans, particularly those affected by testicular dysgenesis syndrome.

Technology improves treatment options for drug users

The special issue highlights various new treatment options, including mobile phones, Internet-based interventions, and computers. Researchers have seen promising results, such as a high number of students logging on to screening programs and increased access for hard-to-reach populations.

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.

Researchers: Molecular forklifts overcome obstacle to 'smart dust'

University of Florida researchers develop a new approach to lab-on-a-chip technology by harnessing biologically powered molecular forklifts. This innovation allows for the creation of 'smart dust' that can detect biological threats and other contaminants without the need for electricity or rinsing.

New infant feeding and obesity research adds insight to ongoing issue

A new study published in the Journal of Nutrition found that longer periods of breastfeeding were associated with lower BMI at one year of age and no significant difference by age 60. The research suggests that infant feeding may have a protective effect on obesity until around age 7.

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.

African-Americans have worse prognosis at colorectal cancer diagnosis

Research from Thomas Jefferson University reveals that African-American patients with colorectal cancer are more likely to present with advanced disease and have a worse five-year survival rate. Socioeconomic factors, including access to healthcare screening, may contribute to these disparities.

Players love the game not the gore

A new study published in the Personality and Social Psychology Bulletin suggests that violent content does not increase enjoyment in video games. Instead, challenges and a sense of autonomy are key drivers of player engagement. For most players, gore actually detracts from the game's 'fun factor'.

3 Palauans selected as interns in new US Forest Service program

Three Palauans, Uelbil Puanani Michael, Omekrael Sadang, and Sheldon Siksei, have been selected as interns in the US Forest Service's Professional Internships in Pacific Terrestrial Island Ecosystem Management program. They will work on forestry projects in their home islands and later implement focus projects with mentors.

Neurons show sex-dependent changes during starvation

Researchers found that male neurons more readily withered up and died under starvation, while female neurons conserved energy and stayed alive. The study revealed sex-dependent effects in brain cells, shedding light on metabolic differences between males and females.

Fluke 87V Industrial Digital Multimeter

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

Dartmouth researchers identify potential cancer target

Researchers found that two proteins, Kif2b and MCAK, work together to ensure proper chromosome segregation during cell division. Increasing these proteins in tumor cells restored nearly normal accuracy of chromosome segregation, providing insight into mechanisms of cell division in tumor cells.

Pre-emptive treatment helped curtail skin toxicity with panitumumab

A pre-emptive skin regimen can significantly reduce skin-associated toxicities associated with panitumumab for metastatic colorectal cancer treatment. The study found that this approach reduced the incidence of grade 2 or higher skin toxicities by over 50%. Patients who received prophylactic treatment reported improved quality of life,...

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.

Astronomers find dust around a primitive star

Researchers found evidence of cosmic dust forming around a dying star in a nearby galaxy, similar to those that formed soon after the Big Bang. This discovery provides insight into the early stages of the Universe and challenges the long-held theory that supernovae explosions are the primary source of dust.

Evolutionary process more detailed than previously believed, study shows

A Texas A&M University study found that yeast cells exhibit a dynamic evolutionary process with multiple beneficial adaptations arising within a population, leading to competition between segments. The research provides direct experimental evidence of 'clonal interference,' contradicting the classical model of evolution.

Is there a relationship between sleep-wake rhythm and diabetes?

A new gene variant associated with fasting glucose levels influences insulin secretion via melatonin metabolism, implicating a previously unknown relationship between the sleep-wake rhythm and diabetes. Further studies will explore the role of melatonin in regulating insulin secretion and potentially lead to new treatment options.

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.

Fishdunnit! Mystery solved

A recent study published in Science reveals that fish produce a significant fraction of the oceans' calcium carbonate, affecting seawater's pH balance. The researchers estimate three to 15 percent of marine calcium carbonate is produced by fish, which can dissolve rapidly and release into the deep ocean.

Scientists glean new insights into convection in planets and stars

Researchers built a novel device to study convection in rotational systems, providing new insights into how it controls planetary and stellar behavior. The findings show that fluid boundary layers control rotating convection systems, rather than Coriolis and buoyancy forces.

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.

Key protein that may cause cancer cell death identified

Scientists at A*STAR's IMCB have discovered a human protein called Bax-beta (Baxβ) that can induce cancer cell death. The protein is normally degraded by proteasomes in healthy cells, but its levels are elevated in cancer cells, leading to apoptosis.

2 Pohnpeians selected as interns in new US Forest Service program

The US Forest Service has selected two Pohnpeian students, Fa'afo'i Tony Maugalei and John Ah Sue, as part of its Professional Internships in Pacific Terrestrial Island Ecosystem Management program. The program aims to recruit and train the next generation of forestry professionals in the Pacific Islands.

Celestron NexStar 8SE Computerized Telescope

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