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Science News Archive 2009


Page 185 of 277

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.

Stopgap DNA repair needs a second step

A recent study by Prof. Zvi Livneh reveals the two-step mechanism of stopgap DNA repair, a major source of mutations in cells. Understanding this process can lead to enhanced treatment options for individuals with deficient natural DNA repair, as well as improved chemotherapy effectiveness against cancer.

New light shed on the enigma of salt intake and hypertension

Scientists find novel salt storage site in the skin and a gene regulator controlling blood pressure regulation. A high-salt diet leads to increased lymphatic vessels, but the process behind this storage and its relevance to human disease are not yet fully understood.

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.

Psyched out by stereotypes: IU research suggests thinking about the positive

A study by Indiana University researchers found that women who are aware of both a negative and positive stereotype related to performance identify more closely with the positive stereotype, improving their performance. The study demonstrated how the negative stereotype can encroach on working memory, but the positive stereotype had no...

Unprecedented use of DDT concerns experts

A panel of experts reviewed studies on the link between DDT and human health, expressing concern over high levels of exposure in regions where malaria is endemic. They called for increased efforts to reduce exposure and develop alternatives to using DDT.

What teens don't know about OTC medications can hurt them

A University of Rochester Medical Center survey found teens lack knowledge about over-the-counter pain medications, with only 35% correctly identifying acetaminophen and Tylenol. Chronic misuse can lead to liver damage and accidental overdose

Social networking for terrorists

A new analytical approach can reveal latent connections and patterns in terrorist networks, potentially helping investigators gather information on associates and bring perpetrators to justice sooner. The technique uses graph theory and computational data processing to analyze networks and identify critical nodes.

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.

Weizmann Institute scientists show white blood cells move like millipedes

Weizmann Institute scientists have discovered that white blood cells use a unique method of movement, similar to millipedes, to crawl along the lining of blood vessels. The cells create tiny 'legs' that attach and detach in sequence, allowing them to move rapidly while keeping a good grip on the vessel's sides.

World's largest tornado experiment heads for Great Plains

The VORTEX2 project, a collaborative international study, aims to gain a better understanding of tornado formation and damage patterns. By deploying advanced weather-sensing tools, researchers hope to identify the characteristics of severe thunderstorms that produce tornadoes, ultimately leading to more accurate tornado warnings.

Brain protein central to both Parkinson's, drug addiction identified

Researchers at Columbia University Irving Medical Center have identified a protein called oct3 that plays a critical role in both Parkinson's disease and addictive drugs. The protein helps toxic chemicals reach dopamine neurons, leading to cell death in patients with Parkinson's 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.

May 2009 Geology media highlights

Chevron-shaped dunes are not indicative of mega-tsunamis, contrary to popular speculation. Microbial life extends fossil record by 1.5 billion years, while nanoscale cristobalite fibers in volcanic ash hint at adverse health effects. The largest trilobites ever found provide insight into Earth's first animals and fossil evidence.

Humans, not climate, driving increased dengue risk in Australia

A new study suggests that human behavior, such as installing large domestic water tanks, may enable the dengue mosquito Aedes aegypti to re-emerge in Australia and expand its range of possible infections. By 2050, the risk of dengue fever is expected to be high in all capital cities around the country.

Delirium rapidly accelerates memory decline in Alzheimer's patients

Researchers at Beth Israel Deaconess Medical Center found that an episode of delirium rapidly accelerates cognitive decline and memory loss in Alzheimer's patients. The study, which analyzed data from 408 patients, revealed that the average decline on cognitive tests nearly doubled to 4.9 points per year following an episode of delirium.

Apple iPhone 17 Pro

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

When atoms are getting close

Researchers analyze chlorotrinitromethane molecule to reveal extremely short carbon-clorine single bond of 1.69 Angstroms, breaking previous measurements. Theoretical calculations confirm electrostatic interactions between atoms contribute to this unusual bond length.

Women more vulnerable to tobacco carcinogens, new results show

Researchers found women tend to be younger when developing lung cancer, despite smoking less than men, increasing the risk of tobacco carcinogens. Women's awareness of other cancers like breast cancer may also contribute to their vulnerability, with median survival after surgery being longer for women.

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.

Personalized treatment for early lung cancer

Researchers discuss personalized treatment options for early-stage lung cancer, using targeted therapies and cancer vaccines. A gene signature is being used to predict which patients will benefit from an immune-boosting vaccine designed to target MAGE-A3 protein.

Moving gene therapy forward with mobile DNA

Researchers at VIB develop efficient and safe gene delivery approach based on non-viral genetic elements called transposons, overcoming limitations of viral vectors. This technology may simplify gene therapy, improve safety and reduce costs, treating cancer and genetic disorders.

Process controlling T cell growth and production identified

Identifying a transcription factor that regulates blood stem cells, researchers found ELF4 activates an inhibitor that stops naive T cells from proliferating. This discovery could lead to better vaccines and more effective cancer immunotherapy by controlling T cell growth and production.

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.

Nanotechnology holds promise for STD drug delivery

Researchers at Yale University have developed a novel approach to deliver small interfering RNA (siRNA) molecules using biodegradable nanoparticles, achieving sustained release and effective knockdown of gene activity. This breakthrough holds promise for the treatment of sexually transmitted diseases (STDs), particularly HPV and HIV.

Neuroscientists discover long-term potentiation in the olfactory bulb

Researchers at Case Western Reserve University have discovered a form of synaptic memory in the olfactory bulb, which could explain how we store information about specific smells. This finding provides a new perspective on the brain's processing of sensory information and has implications for understanding human memory.

Narcolepsy is an autoimmune disorder, Stanford researcher says

Researchers confirm that narcolepsy is an autoimmune disease caused by a specific immune cell variation. A study found that nearly 90% of patients with narcolepsy carry a variant of the human leukocyte antigen gene, which is also associated with other autoimmune diseases like multiple sclerosis and juvenile diabetes.

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.

Late motherhood boosts family lifespan

A new study finds that women who have babies in their 40s or 50s tend to live longer than other women, and their brothers also live longer, but not their wives. The study suggests that genes may play a significant role in prolonging lifespan and female fertility.

Tree survival skills

A recent study by the American Society for Horticultural Science found that stressors during tree handling and transport, such as root severance, water stress, and mechanical damage, can significantly impact tree health and establishment. Researchers identified key stages in the transplanting process that contribute to reduced growth a...

Fluke 87V Industrial Digital Multimeter

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

Decreasing deer damage

A recent study by researchers found that certain tree and shrub species are more or less attractive to white-tailed deer, resulting in varying levels of damage. By identifying these preferences, growers can take steps to reduce economic losses, such as harvesting products in late fall and early winter.

Apple enthusiasts welcome WineCrisp

A new apple cultivar called WineCrisp has been introduced after 25 years of research, offering a highly productive late-season red apple with a firm texture and dark red color. The fruit is resistant to fungal disease apple scab, reducing costs for growers and promoting environmental sustainability.

Study shows texting while driving can be deadly

A new study confirms that texting while driving can be deadly, as teens using a driving simulator displayed significant slowing, weaving, and lane changes. The study highlights the risks of distracted driving for both drivers and pedestrians.

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.

Protecting fresh-cut produce

Researchers from three institutions applied harpin to head lettuce prior to harvest to prevent microbial contamination. The study found that harpin improved color, reduced browning, and increased phenolic compounds, which are linked to plant chemical defenses against microbes.

New and improved tomato analyzer

The Tomato Analyzer software provides accurate and objective measurements of fruit shape, aiding morphological research. The analysis is more efficient for large numbers of subjects and detects traits difficult to quantify manually.

New Southern California beetle killing oaks

A rare beetle, Agrilus coxalis, has attacked 67 percent of oak trees in an area east of San Diego, threatening fire danger and wildlife habitats. The beetle's origin and spread are still unknown, but research is needed to determine its distribution, seasonal active periods, and natural enemies.

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.

Weight loss competitions produce encouraging results

A new study from Brown University found that statewide weight loss competitions can be an effective way to promote weight loss in large numbers of people. The study, which evaluated the Shape Up Rhode Island 2007 program, showed that individuals who increased their activity levels achieved the best weight losses.

ISU researcher identifies key function in protein, cell transcription

A Iowa State University researcher has figured out a mechanism involved in marking where DNA instructions are located in cells. The Gcn5 protein plays a crucial role in recognizing chemically modified histones, facilitating efficient gene reading and shedding light on diseases like cancer.

Climate change threatens Lake Baikal's unique biota

A warmer, wetter climate poses a significant threat to Lake Baikal's biodiversity, with declining ice cover affecting iconic diatoms at the base of the food web. Stepped-up monitoring and international action are necessary to mitigate the impact of climate change on this unique ecosystem.

Meta Quest 3 512GB

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

Mosquito parasite may help fight dengue fever

A parasitic bacterium may reduce mosquito lifespan and limit dengue fever transmission. Infected mosquitoes become more active as they age, but their activity levels don't increase further.

Wildlife trade threatens public health and ecosystems

The US wildlife trade is plagued by a lack of coordination and regulation, leading to the importation of millions of animals each year. This can have devastating effects on native species, food supply chains, and human health, as evidenced by previous disease outbreaks such as monkeypox.

Two Argonne mathematicians recognized as SIAM Fellows

Researchers at Argonne National Laboratory have made significant contributions to optimization problems, dynamical systems theory, and climate change modeling. The duo was named Fellow by the Society for Industrial and Applied Mathematics (SIAM) for their work on software development and numerical methods.

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.

New study evaluates community response to personally controlled health information

A new study evaluated the community's response to Indivo, a personalized health record system. The two-year study found that issues such as health literacy, accessibility, and privacy were relevant factors in PCHR adoption. Researchers advocate for continued evaluation of PCHRs and discussions on technical and policy approaches to adva...

Rotator cuff tears: Are they all in the family?

A new study published in The Journal of Bone and Joint Surgery found a strong link between genetic predisposition and rotator cuff tears. Family members of patients with rotator cuff tears are at increased risk of similar tendon tears, suggesting that heredity plays a role in the development of the disease.

Study links ADHD with sleep problems in adolescents

A study reveals that adolescents with ADHD are more likely to experience current and lifetime sleep problems and disorders, regardless of ADHD symptom severity. Mental health professionals are advised to screen for sleep problems and psychiatric comorbidities in all adolescents with a childhood ADHD diagnosis.

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.

Injured Marines at risk for abnormal bone growth

Researchers studied 243 wounded Marines to identify risk factors for heterotopic ossification, a condition where bone forms in soft tissues. The study found that age, traumatic brain injury, amputation, and multiple injuries are key contributors to the development of this abnormal bone growth.

JCI online early table of contents: May 1, 2009

Researchers have identified a protein responsible for regulating branched-chain amino acid catabolism, which may be linked to Maple Syrup Urine Disease. Additionally, immune cells called V-alpha-24-invariant NKT cells can indirectly affect neuroblastoma growth by killing tumor-associated cells that promote its growth.