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Science News Archive 2005


Page 64 of 165

Simple explanation for complex pattern of feather development

A team of biologists has discovered that plumed feather structures involve the coordination of at least two genes that activate and inhibit barb growth. This finding provides the best experimental evidence for a classical theory of growth in complex biological structures.

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.

Gene loss accelerates aging

Researchers have discovered that the loss of the p63 gene accelerates aging in mice, leading to hair loss, reduced fitness and body weight, progressive curvature of the spine, and a shortened lifespan. This study suggests that p63 plays a fundamental role in maintaining health and preventing cancer.

Slower care for heart attack patients treated off hours and weekends

A study by Yale University researchers found that delayed treatment for heart attacks treated outside regular hours leads to increased mortality rates. PCI therapy, which opens narrowed coronary arteries, is more effective when administered promptly, but delays result in reduced survival benefits.

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.

Gene expression levels may reveal stage of Huntington's disease

Researchers analyzed gene expression patterns in blood samples from patients with Huntington's disease (HD) and asymptomatic carriers to identify potential biomarkers. The study found 12 genes with significantly altered expression levels, which rose to disease-associated levels as carriers approached symptom onset.

Dual-drug therapy targets one colon cancer gene

Researchers found that combining interferon with irinotecan boosts IRF5 protein levels in colon cancer cells, leading to increased cell death. The combination therapy may limit side effects and make it harder for cancer cells to build resistance.

Temperature sensing by the circadian clock

Researchers found that low temperatures trigger a specific splicing mechanism in frq mRNA, excluding the l-FRQ translation initiation site and modulating circadian rhythmicity. This temperature-dependent inhibition of translation by uORFs effectively regulates FRQ levels and circadian rhythms.

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.

Breast cancer detected through mammography has survival advantage

Researchers found that breast cancer detected by mammography has a substantially better survival prognosis, even after adjusting for stage of disease and tumor characteristics. The study suggests that this is due to the detection of slower-growing tumors, which are more likely to be node-negative.

Other highlights in the August 17 JNCI

Researchers found that screen-detected breast cancers tend to have better prognoses than clinically detected ones, but may not lead to lower mortality. Meanwhile, patients on cetuximab therapy are at risk of hypomagnesemia and require magnesium supplementation. Additionally, men with Klinefelter syndrome may be more likely to develop c...

Kidney failure a significant cause of ICU deaths worldwide

A large international study found that 6% of critically ill patients develop kidney failure, with 60% dying while hospitalized. Researchers also discovered that 86% of surviving patients do not require dialysis after discharge, providing a clue for treating acute renal failure.

Apple iPhone 17 Pro

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

Driving metastasis

Researchers found RhoC essential for tumor metastasis, but dispensable for embryonic development and tumor initiation. RhoC-deficient mice display reduced tumor metastasis, lower cell motility, and survival properties in secondary sites.

Weight control protein may yield antiobesity drugs

Researchers found that SH2-B regulates leptin sensitivity, energy balance, and body weight in mice, leading to obesity and metabolic syndrome. The study identifies SH2-B as a critical component in maintaining leptin sensitivity, potentially serving as a therapeutic target for treating obesity and type 2 diabetes

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.

Bush sneaks in vetoes under a veil of formality

The president's statements provide interpretation of law language and announce constitutional limits on some provisions. This allows the administration to shape policy without passing new legislation, strengthening veto threats.

New title from SSSA: Chemical Processes in Soils

The book provides a comprehensive understanding of the chemical and biological processes occurring in soil, essential for those studying or working in related fields. Readers will find chapters on various topics, including soil organic matter, macronutrients, and redox processes.

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.

Women who cohabit have daughters who do the same, study shows

A study by Ohio State University found that young adult women whose mothers reported cohabitation were 57% more likely to report cohabitation themselves. Daughters of cohabiting mothers also tended to cohabit at earlier ages than others, according to researchers.

New analytical tool helps detect cancer

Researchers at Ames Laboratory developed a method called dynamic multiple equilibrium gradients (DMEG) that enables hyperselective separation and concentration of specific analytes. This advancement allows for the detection of smallest substance traces, including estrogen-derived conjugates and DNA adducts in human fluid samples, poten...

Meta Quest 3 512GB

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

Life-extending protein keeps blood sugar in check

Researchers found that Sirt1 protein enhances glucose-stimulated insulin secretion in mice, improving glucose tolerance. The study suggests therapeutic interventions for the prevention and treatment of diabetes.

Purdue simulation to help merge molecules with silicon electronics

Researchers at Purdue University have created a nanotech simulation tool that helps design molecular electronic devices. The tool simulates how current flows between silicon atoms and individual molecules, enabling the development of new technologies such as biochips and advanced sensors. By studying the interaction between molecules a...

Tumor suppressor activity of PTEN

Research reveals PTEN regulates VGF signaling, enhancing angiogenesis and accelerating tumor growth in mice. Individuals with mutated PTEN alleles are at risk for increased tumorigenic mutations and accelerated tumor growth due to enhanced angiogenesis.

Common painkillers linked to high blood pressure in women

A study of over 4,000 women found that taking high doses of acetaminophen and ibuprofen may increase the risk of developing high blood pressure. Women taking these painkillers were more likely to develop hypertension compared to those who didn't use them.

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.

Galactic survey reveals a new look for the Milky Way

Astronomers have conducted the most detailed survey of the Milky Way's inner regions to date, revealing a long stellar bar spanning 27,000 light years. The bar is oriented at about a 45-degree angle relative to the galaxy's center, providing new insights into the galaxy's structure and evolution.

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.

Global warming to boost Scots farmers

Climate change could increase crop yields and improve livestock farming in Scotland, but the impact depends on the extent of CAP reform. Regional variations in climate change effects were found, with lowland south-west Scotland likely to benefit most from increased farm income.

Diabetics fare worse after ankle fracture surgery

A recent study found that diabetics who underwent ankle fracture surgery had significantly longer hospital stays and higher mortality rates compared to non-diabetic patients. The researchers estimated that diabetic patients experienced an additional day of hospitalization and costs approximately 20% higher.

Celestron NexStar 8SE Computerized Telescope

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

NSF awards $36 million toward securing cyberspace

The National Science Foundation has awarded $36 million to support two new research centers focused on securing the nation's cyberspace and critical infrastructure. The Cyber Trust initiative aims to develop trustworthy computing systems, improve electronic voting systems, and create a secure cyberinfrastructure for the power grid.

After overeating, we don't compensate by eating less

A study of 12 normal-weight individuals found that their eating behavior did not compensate for overeating, despite gaining weight. Instead, they maintained their usual eating patterns when returning to their normal environment.

No small feat: First ever gene therapy success for muscular dystrophy achieved

Researchers at the University of Pittsburgh Medical Center have successfully treated animals with muscular dystrophy using a miniature gene and new systemic approach, demonstrating significant improvements in muscle function and longevity. The treatment involves delivering a mini-agrin gene via adeno-associated virus vectors, restoring...

NSF center aims to bolster security and trust in e-voting

The NSF-funded ACCURATE center brings together experts to tackle the challenges of integrating technology into the voting process. Researchers will focus on building more reliable software and hardware, as well as exploring human factors and usability issues in e-voting systems.

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.

Time and money make a difference in endangered species recovery

A recent study found that about half of protected species are no longer declining in numbers. The research highlights the importance of considering agency administration and funding in evaluating the success of conservation efforts under the Endangered Species Act.

Tip sheet Annals of Internal Medicine, Aug. 16, 2005

A study of 372 community-dwelling older patients found that those receiving high-quality care had better survival rates than those without it. The research created a quality-of-care score based on 236 process-of-care measures, with survival improving steadily as the score increased.

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.

Scientists harness the power of pee

Researchers have developed a paper battery that harnesses the power of urine to test for diseases, providing a cheap and efficient solution for healthcare diagnostics. The device can be integrated into biochip systems, enabling people to monitor their health at home without relying on external power sources.

Ships bring alien jellyfish invaders to our shores

Researchers used genetic data and computer simulations to reveal that moon jellyfish migration post-dates European global shipping and trade. The study found that up to 23% of marine species in international harbors are non-indigenous, posing threats to ecosystems and causing billions of dollars in damage.

Role of microRNA identified in breast cancer

A study from Ohio State University's Comprehensive Cancer Center discovered a set of microRNAs that can distinguish between normal and cancerous breast tissue. The findings suggest that microRNA expression is correlated with breast cancer's hormone status, metastatic potential, and proliferative rate.

Researchers find evidence for 'tanning addiction'

Study finds that repetitive tanning behavior may be linked to a kind of addiction, similar to alcoholism or drug dependency. Researchers identified UVL tanning dependence in 53% of beachgoers, suggesting why educational interventions have been unsuccessful.

Johns Hopkins-led center will study voting technologies

The Johns Hopkins-led ACCURATE center will investigate electronic voting technology, public policy issues, and human behavior in the context of e-voting, seeking to improve the integrity and trustworthiness of the US electoral process. The center's research aims to develop technical standards for secure and accessible e-voting systems.

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.

Young athletes ignore skin cancer risk

A recent study by Dr. Brian Adams found that 85% of NCAA soccer players and cross-country runners did not use sunscreen during practice, despite being at high risk for sun-related skin cancer. The American Cancer Society estimates that most cases of nonmelanoma skin cancer diagnosed yearly in the US are sun-related.