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Science News Archive June 2009


Page 13 of 26

Trans fats hinder multiple steps in blood flow regulation pathways

A new study reveals that trans fats interfere with the regulation of blood flow by hindering key enzymes and reducing prostacyclin production. This can lead to increased inflammation, high LDL cholesterol, and calcified arteries, ultimately contributing to atherosclerosis and heart disease.

Common fish species has 'human' ability to learn

A new study suggests that common fish species, such as the nine-spined stickleback, can compare behavior and make choices based on personal experience, leading to better food supplies. This sophisticated social learning capability, called 'hill-climbing', challenges the idea that big brains are necessary for cumulative culture.

Apple iPhone 17 Pro

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

Therapy helps improve outcomes for patients with severe sepsis

Researchers found that a novel therapy combining antibiotic-based hemoperfusion with conventional treatment significantly reduced mortality and improved blood circulation and organ function in patients with severe sepsis. The study's results suggest potential benefits for endotoxin-targeted therapy in septic shock.

Putting a name to a face may be key to brain's facial expertise

Researchers found that individuating novel objects with unique names enhances holistic processing, a hallmark of face-like expertise. This technique can be learned quickly and applied to other objects, indicating that expert-level recognition is not solely the result of extensive practice.

Good news for some hard-to-treat hepatitis C patients

A new combination therapy of daily consensus interferon and ribavirin has been found to be effective in some hepatitis C patients who have not responded to previous treatment. The study, led by a Saint Louis University researcher, showed a success rate of above 30 percent for patients with less severe liver damage.

Stanford expert lists 5 steps to boost impact of comparative effectiveness research

Comparative effectiveness research can significantly improve health care quality and affordability if done correctly. Two key challenges are obtaining data earlier in the life cycle of new drugs and linking evidence to strategies that modify physician practice. The expert also highlights the need for a broader agenda, including lifesty...

Meta Quest 3 512GB

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

Rural tourists' profile analyzed

A study on rural tourists' profile in Spanish villages with limited inhabitants highlights the importance of emotional and cognitive aspects of travel. Key factors influencing traveler behavior include historical-cultural wealth, cleanliness, and welcome from local residents.

Sinus infections may be a factor in toxic shock syndrome in children

Researchers found that sinus infections are a primary cause of toxic shock syndrome in about one-fifth of cases in children. Children with both conditions had more severe symptoms and required intensive care, but prompt imaging studies can help diagnose the underlying infection.

New approach for treating recurrent prostate cancer on the horizon

Researchers have developed a novel form of treatment using an alpha-particle emitting radiopeptide that targets and destroys cancer cells while sparing healthy tissue. The study found that this therapy was significantly more effective at tripling the survival rate of mice with recurrent prostate cancer compared to traditional treatments.

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.

Psoriasis associated with cardiovascular disease and increased mortality

A study found that psoriasis is associated with an increased risk of cardiovascular disease, including ischemic heart disease, cerebrovascular disease, and peripheral artery disease. Patients with psoriasis were also more likely to die from these conditions, highlighting the need for vigilance in screening for cardiovascular risk factors.

'Platforms in space' to help businesses

The University of Leicester has launched G-STEP, a business-facing service that harnesses space technology for earth-bound benefits. Researchers are working with businesses and public sector organisations to provide value-added services exploiting environmental data from the GMES system.

TRAPping proteins that work together inside living cells

Researchers have developed a new crosslinking method called TRAP to study protein interactions in living cells. The method uses small crosslinkers that can be controlled with light to identify proteins working together, revealing new details about RNA polymerase in bacteria.

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 method separates cancer cells from normal cells

Researchers at Northwestern University have developed a novel method to separate cancer cells from normal cells by directing their movement along preferred directions. The technique utilizes ratcheting technology and has the potential to create a

Popular Alzheimer's theory may be false trail

Researchers found that microglial cell degeneration contributes to loss of neurons and dementia, contradicting the popular neuro-inflammation theory. The study suggests that anti-inflammatory drugs may not be effective in fighting dementia.

Is the sky the limit for wind power?

A new study identifies New York and eastern U.S. cities as prime locations for exploiting high-altitude winds, which contain enough energy to meet world demand 100 times over. The regions match population centers and have high wind power densities, but fluctuating wind strength poses a challenge for large-scale exploitation.

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.

Calcium -- the secret to honeybees' memory

Researchers have discovered that calcium modulation affects long-term memory specifically while leaving learning and short-term memory intact. The study found that increased calcium levels during learning led to stronger responses to olfactory stimuli associated with food, indicating improved memory performance.

Show and prove

Temple University's School of Podiatric Medicine has received a $650,000 NIH grant to test the effectiveness of a personalized, visual diabetic foot education strategy. The program aims to improve health literacy and empower patients to make better decisions about their foot care.

Fluke 87V Industrial Digital Multimeter

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

MIT slows concrete creep to a crawl

Researchers at MIT identified the cause of concrete creep and found a way to slow its rate, enabling ultra-high-density materials that can last hundreds of years. This breakthrough could lead to enormous cost-savings and reduced CO2 emissions in construction.

Having a higher purpose in life reduces risk of death among older adults

A new study by researchers at Rush University Medical Center found that possessing a greater purpose in life is associated with lower mortality rates among older adults. The study used data from 1,238 community-dwelling elderly participants and found a substantially reduced risk of mortality among those with high purpose in life.

NERSC helps expose cosmic transients

The Palomar Transient Factory (PTF) utilizes NERSC's tools to uncover relatively rare cosmic events like supernovae and gamma ray bursts, discovering over 40 in its commissioning phase. The survey combines automated analysis with high-end systems and networks, enabling rapid follow-up observations.

Amazon conservation policy working in Brazil, MSU-led study finds

A recent MSU-led study found that Brazil's protected areas within the Amazon can buffer the forest from climate change even if the remaining area is deforested. The researchers used atmospheric computer modeling to simulate a worst-case scenario and found rainfall levels would not decrease significantly.

AmScope B120C-5M Compound Microscope

AmScope B120C-5M Compound Microscope supports teaching labs and QA checks with LED illumination, mechanical stage, and included 5MP camera.

Hungry cells

Scientists have identified a new approach to detect and treat Peutz-Jeghers syndrome, a rare inherited cancer syndrome, by exploiting tumors' weak spot in glucose metabolism. They found that targeting mTOR pathway with rapamycin can stop tumor growth, offering new treatment options.

Gating the tides in yeast

Researchers have gained insight into the regulation of aquaporins in yeast cells, revealing a previously mysterious region that acts as a gate controlling water flow. This discovery may lead to the development of inhibitors for human aquaporins, which could slow down cancer tumor growth.

Predicting fatal fungal infections

Scientists have identified a method to predict which HIV-positive individuals are most susceptible to deadly fungal meningitis. The study found that people with low levels of IgM memory B cells are more likely to develop the disease, suggesting a genetic predisposition.

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.

Scientists discover magnetic superatoms

Researchers at Virginia Commonwealth University discovered a stable cluster of atoms that can mimic different elements of the periodic table, exhibiting strong magnetic properties. The discovery has potential applications in creating faster computers, larger memory storage, and molecular electronic devices.

New study closes in on geologic history of Earth's deep interior

A study by UC Davis geochemists has produced the first picture of how different isotopes of iron were initially distributed in the solid Earth 4.5 billion years ago. The discovery could lead to investigations into the evolution of Earth's mantle and its geologic history.

New skin cancer patch: Possible alternative to surgery

Researchers successfully treated basal cell carcinoma with a non-toxic radioactive patch, showing minimal scarring and no toxicity. The treatment delivered beta radiation to the cancer site, effectively eradicating the malignant cells.

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.

How consumers continue enjoying their favorite experiences

Researchers found that thinking about similar experiences accelerates recovery from satiation, as people tend to forget the variety they had in their lives. By recalling past favorite experiences, consumers can regain enjoyment and appreciate their current experience more.

What limits the size of birds?

Research by Sievert Rohwer and colleagues reveals that maximum body size in birds is constrained by the molt process. As bird size increases, feathers wear out before they can be replaced, requiring alternative strategies to maintain aerodynamic support. This fundamental relationship ultimately limits the size of flying birds.

Gene evolution process discovered

Researchers at the University of Leeds have discovered a key mechanism governing gene evolution, revealing that protein REST controls gene expression by binding to specific genetic sequences. This process has been shown to play a leading role in the evolution of intelligence in mammals, particularly in the brain.

Stress puts double whammy on reproductive system, fertility

Researchers at the University of California, Berkeley, have found a critical piece in the puzzle about how stress causes sexual dysfunction and infertility. Stress hormones, such as glucocorticoids like cortisol, inhibit the body's main sex hormone GnRH, while also increasing another hormone GnIH, which directly inhibits GnRH.

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.

Embargoed news from Annals of Internal Medicine

Researchers investigated calcium supplementation's effect on obese patients' weight loss, found no benefits. Red yeast rice capsules improved LDL cholesterol levels in statin-intolerant patients without muscle pain side effects. Colonoscopy-related adverse events were low but increased with age and specific comorbid conditions.

Pregnant women at high risk of complications from H1N1 influenza

A new study in CMAJ reports that oseltamivir and zanamivir are relatively safe for use in pregnant and breast-feeding women during the H1N1 pandemic. Pregnant women, especially those in the third trimester, are at high risk of serious complications from the flu virus.

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.

D.C. Math for America awarded $1.5-million NSF grant

The Carnegie Institution's CASE and Math for America (MfA) partnership aims to recruit, train, and retain effective secondary school mathematics teachers in Washington, D.C. The program has received a $1.5-million NSF grant to support 14 Fellows over the next four years.

Memories may be formed throughout the day, not just while sleeping

A study on rats reveals that neural replay of past experiences occurs both during and after wakefulness, forming long-term memories more accurately. The hippocampus replays events in peppered bursts, often involving different settings, suggesting elements of past experience are constantly reactivated.

The downside of microtubule stability

Research finds stalled microtubules in cells with faulty dynamin 2 protein, leading to reduced nerve impulse strength and slowed movement. The stable microtubules disrupt normal cellular processes, including the formation of the Golgi complex.

Celestron NexStar 8SE Computerized Telescope

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

New chemistry techniques improve hybrid scanner performance

Researchers have developed a new fully integrated PET/MRI system that can provide whole-body images of rats and small animals. The system offers significant improvements in imaging capabilities, enabling increased understanding of disease characteristics and physiological processes.

They are young and need the job: A second chance for dangerous T cells

Researchers found that young autoreactive T-cells are more receptive to reeducation into regulatory T-cells. In contrast, older T-cells become fully activated and cause damage. Understanding the developmental stage of T-cells holds promise for developing new therapies for autoimmune diseases.

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.

Extended service contracts: When and why do people buy them?

Researchers found that people are more likely to buy Extended Service Contracts for hedonic products like game controllers, which hold value due to the pain of potential loss. Price promotions also play a role, with low-income consumers more likely to purchase ESCs as they cannot afford replacements.

New issue of Reproductive Health Matters on task shifting

The new issue of Reproductive Health Matters highlights the need for comprehensive efforts to strengthen public health systems and create a well-trained workforce. Mid-level providers are willing to take on increased workloads, raising questions about quality of care and financial remuneration.

U of Alberta study discovers how proteins help repair DNA

Researchers at the University of Alberta have discovered how proteins recognize and repair damaged DNA. The proteins bend the DNA double helix to amplify damage recognition, enabling the next protein to cut out the damaged section. This process can be used to develop new cancer treatments and disease prevention strategies.

Major breakthrough in early detection and prevention of AMD

A team of researchers led by Dr. Jayakrishna Ambati at the University of Kentucky has discovered a biological marker for neovascular age-related macular degeneration (AMD). The marker, CCR3, shows strong potential as a means for both early detection and preventive treatment.

The anti-consumption movement: Researchers examine resistance to global brands

A study in Journal of Consumer Research found that India's anti-Coca-Cola movement employs nationalism and swadeshi ideology, invoking imagery of foreign invasion and exploitation. The authors argue that global brands can become symbols of oppression, with implications for multinational corporations and policy makers.

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.

RNA snippet suppresses spread of aggressive breast cancer

Researchers at Whitehead Institute for Biomedical Research discovered a microRNA, miR-31, that inversely correlates with metastasis in breast cancer. Increasing miR-31 levels can help predict patient prognoses and potentially aid in the development of targeted therapies.