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Science News Archive 2003


Page 87 of 108

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.

Common mutations prevalent in low-grade ovarian cancers

Researchers found that 68% of invasive low-grade ovarian tumors and 61% of precancerous lesions carried one of the three common mutations in BRAF or KRAS. Blocking KRAS-BRAF signaling may provide more effective therapy for these cancers, which generally do not respond well to conventional chemotherapy.

First sightings of individual proteins as they fold

Researchers have made a breakthrough in understanding how proteins fold by capturing single proteins in action. The study reveals that protein molecules vary in the routes they take to form the same folded shape and create numerous intermediate shapes along the way.

Two major food allergy firsts in North America

A new study reveals that peanut allergies are on the rise in Quebec, affecting approximately 1.5% of Montreal schoolchildren, compared to previous estimates of 0.5%. The Association québécoise des allergies alimentaires has also launched a certification program for allergen-free food products.

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.

Scientists find new way to grow human embryonic stem cells

Researchers at Johns Hopkins Medicine have found a new method for growing human embryonic stem cells using human marrow stromal cells, eliminating the need for mouse cells as feeders. This breakthrough could potentially lead to significant advancements in treating conditions like Parkinson's disease 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.

How humans lost their scents

A study found that 54% of human olfactory receptor genes are impaired, compared to 28-36% in other primates. The decline of the sense of smell likely occurred within an 'evolutionary moment' 3-5 million years ago.

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.

$2.48 million to advance research on multiple sclerosis

The National Multiple Sclerosis Society has awarded $2.48 million to advance research on multiple sclerosis through five collaborative centers. These centers are focused on genetic underpinnings of MS, tissue repair and diagnostic technology, including the use of haplotype mapping and diffusion tensor MR imaging.

Alcohol dependence linked to chemical deficit

A study at the University of Illinois Chicago found that a protein in the brain, CREB, controls drinking behavior in laboratory animals. Low levels of active CREB or neuropeptide Y correlated with symptoms of anxiety and excessive alcohol consumption.

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.

Women smile more than men, except when they are in similar roles

A study by Yale researchers found that women do smile more than men, but the difference is modest and influenced by factors such as culture, ethnicity, age, and social role. When men and women think no one is looking, they smile similarly, and the sex differences disappear when they are in the same position of power or occupation.

Study finds risk for lung cancer varies among smokers

Researchers at Memorial Sloan-Kettering Cancer Center developed a mathematical model predicting lung cancer risk based on age, sex, and smoking history. The tool helps balance the risks and benefits of screening for high-risk individuals.

Young gay men are anxious, depressed and ignorant of their HIV status

A study led by Dr. Debra Bekerian found young gay men are anxious and depressed, with many unaware of their HIV status. Trauma may have a protective effect on health behavior, and the report suggests improving health messages using the internet could help reduce unsafe sexual practices.

Gretchen Daily named Nature Conservancy senior scholar

Gretchen Daily has been selected as a Nature Conservancy senior scholar, working with researchers from Stanford and the Nature Conservancy to develop market-based approaches to conservation. The project aims to make conservation more profitable and central to human activities.

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.

Anthrax threat needs aggressive government action plan, say researchers

The researchers propose a four-pronged approach to avoid a catastrophe: decisive action by authorities, immediate antibiotic distribution, clear messaging about the need for full treatment courses, and surge capacity for medical professionals. This could reduce the death toll from an anthrax attack from 123,000 to 1,000.

Into the mouths of babes

A survey of low-income single mothers in Atlantic Canada found that 78% experienced food insecurity and reported poorer nutrition than their children. The study highlights the need for policy reforms to address income inequality and ensure access to nutritious food for vulnerable populations.

ADHD in adults

Adults with ADHD are at higher risk of dropping out of school, losing jobs, and experiencing marital problems due to poor social skills and increased anxiety and depression. Reliable diagnosis and treatment options, such as stimulant medications and new psychotherapeutic approaches, can help manage the condition.

Click for Crick

The International Congress of Genetics will consider the implications of the genetics revolution on global food security, health care, and social justice. The event aims to provide representation from developing countries, which have the most to gain and lose from genetic advancements.

Sony Alpha a7 IV (Body Only)

Sony Alpha a7 IV (Body Only) delivers reliable low-light performance and rugged build for astrophotography, lab documentation, and field expeditions.

Mandatory reporting of HIV infection does not reduce testing rates

A study in Alberta found that mandatory reporting of HIV infection did not significantly impact testing rates among the general population. However, an opt-out prenatal screening policy resulted in a dramatic increase in female tests, suggesting that fear of receiving a positive test may be a more significant deterrent to testing.

Nanotech decoys for viruses

Researchers are developing nanotech decoys that can stick to the HIV virus and prevent it from entering human cells. The study focuses on the binding of gp120 protein to GalCer molecules in cell membranes.

Study shows public support for doctors who deceive insurers

A study found that 26% of jurors sanctioned deception by doctors to obtain care, while 70% favored appealing denied requests. The public's lack of trust in the healthcare system has led to support for 'physician gaming' to gain access to needed care.

Testosterone levels and marriage: High is not all bad

Penn State researchers found that wives with higher testosterone levels were more adaptive social support providers, while husbands with lower testosterone levels were more positive and less negative during discussions. Lower combined testosterone levels led to better social support givers and improved conflict resolution skills.

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.

Body’s own antibodies may drive new strains of HIV

Researchers found that HIV patients develop strong antibody responses against the virus, but these antibodies fail to keep pace with the virus's constant mutation process. This study sheds light on the complex dynamics between the immune system and HIV, highlighting potential avenues for vaccine development.

Annals of Internal Medicine, tip sheet, March 18, 2003

A high-meat protein diet may accelerate loss of kidney function in women with mild chronic kidney disease, according to data from the Nurses Health Study. Meanwhile, implantable cardioverter defibrillators have been shown to significantly reduce sudden cardiac death and deaths from all causes in many patients.

Visual attention attuned to grabbable objects

Researchers at Dartmouth College found that visual attention is specifically drawn to graspable objects, such as tools, and that this effect is more pronounced when these objects are on the right side. This discovery suggests a clear association between visual perception and motor systems in the brain.

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.

Metastasis gene may be useful for diagnosis and treatment of liver cancer

Researchers identified a specific gene required for liver cancer metastasis, which may serve as a diagnostic marker and therapeutic target. The study found that the activity of genes in tumors with metastatic potential differed from those without, enabling early detection and potentially improving treatment outcomes.

Are married people happier than unmarried people

A recent study involving over 24,000 participants found that life satisfaction plays a significant role in marital happiness. Most people experience adaptation and return to their initial levels of happiness after marriage or divorce.

UB study links gum disease with oral cancer risk

Researchers analyzed data from NHANES III to find that serious periodontal disease doubles the risk of pre-cancerous lesions and quadruples the risk of oral tumors. The study suggests a potential link between gum disease and oral cancer, with implications for early detection and prevention.

Researchers develop first mouse model of epithelial ovarian cancer

Researchers at Fox Chase Cancer Center developed a transgenic mouse model of epithelial ovarian cancer, allowing scientists to study the disease's progression from early stages. The model has the potential to facilitate advances in early detection and treatment of ovarian cancer.

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.

Stem cells: From bone marrow to pancreas

Researchers successfully transplanted bone marrow cells from a male donor mouse to a female recipient, where they developed into functional insulin-expressing cells. The findings suggest that bone marrow may be a viable source for ex vivo expansion and autologous transplantation of pancreatic beta-cell precursors.

JCI Table of Contents, March 14, 2003

Research highlights the role of WNK kinases in regulating thiazide-sensitive Na-Cl cotransport, a key mechanism for maintaining electrolyte balance. Additionally, studies investigate the immunomodulatory effects of WNK kinases on pulmonary inflammation and diabetes, shedding light on potential therapeutic targets.

Building the next generation of cancer researchers

AACR sponsors science programs for high school and undergraduate students to inspire careers in cancer research. The AACR-Thomas J. Bardos Science Education Awards for Undergraduate Students recognize and nurture talented young scientists.

Bone marrow stem cells are a source of insulin-producing cells

Researchers have identified bone marrow stem cells with the ability to produce functional insulin-producing cells, offering a new potential avenue for treating diabetes. The study used a molecular biology technique called CRE-loxP to isolate and study these cells, which were found to exhibit characteristics of pancreatic beta cells.

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.

Direct alcohol metabolites

A new study finds that ethyl glucuronide (EtG) is a highly effective and sensitive marker of recent alcohol use, detecting consumption up to 80 hours after complete elimination. The marker helps identify patients who have lapsed or relapsed in treatment, ensuring they are alcohol-free for work and other activities.

Scientists discover possible new treatment for genetic diseases

Researchers have developed a novel method to correct genetic mutations causing abnormal splicing, potentially treating genetic diseases such as spinal muscular atrophy. This technique uses short RNA oligos to recruit signals that influence splicing, allowing proper gene expression and normal cell development.

American Thoracic Society Journal news tips for March 2003 (second issue)

Two new studies report associations between prenatal exposure to maternal smoking and early-onset asthma with deficits in children's lung function. In the first study, a two-month rifampin/pyrazinamide regimen was found to be effective in treating latent TB in high-risk, non-adherent groups, but with potential liver toxicity risks.

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.

Can vitamins slow the progression of Alzheimer’s disease?

A recent pilot study published in the American Journal of Geriatric Psychiatry found that high-dose vitamins can reduce homocysteine levels in individuals with mild to moderate Alzheimer's disease. The multicenter trial, known as Vital, aims to determine if these vitamins can slow the progression of the disease. Researchers are optimis...

Alcohol abuse may increase susceptibility to HIV infection

Researchers found that alcohol consumption increased host susceptibility to SIV/HIV infection by increasing infectivity of cells and lymphocyte turnover. The study suggests that chronic or binge alcohol consumption may contribute to the risk of HIV infection, particularly through behavioral factors.

New crystalline structures may open door to molecular filters

Researchers have developed a new way to create molecular sieves with aligned tunnel-like pores, enabling more efficient filtration and potential applications in water purification and optical components. The discovery opens doors to producing uniform fibers and even sheet-like materials with controlled properties.

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.

Genes are main culprit in development of myopia, study suggests

Research suggests that children who spend more time studying and reading are more likely to develop myopia. However, the study found no link between screen time and the development of myopia. The study of 366 eighth-grade children highlights the importance of hereditary factors in the development of myopia.