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Science News Archive July 2007


Page 4 of 16

Nutritional supplement cuts anemia in poor children by half

A nutritional supplement called Sprinkles has been shown to reduce anemia in poor children by more than half, according to a recent study published in the Journal of Nutrition. Children aged 6-24 months are most vulnerable to iron-deficiency anemia.

The inside dope

Scientists at the Weizmann Institute of Science have successfully implemented doping in molecular electronics, enabling the control of electronic properties in organic molecules. This breakthrough could lead to the creation of environmentally friendly and versatile electronic components.

Apple iPhone 17 Pro

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

FDA Nanotechnology Task Force takes positive step forward

The FDA Nanotechnology Task Force has outlined a comprehensive plan to address regulatory challenges posed by nanotechnology, recognizing the need for new safety assessment tools and greater expertise. The report calls for increased public participation and transparency in developing regulatory policies.

Treating HIV-infected infants early helps them live longer

A clinical trial by NIAID suggests that early antiretroviral therapy for HIV-infected infants can significantly improve survival rates. The study found that children treated before three months of age had a better prognosis than those whose treatment was delayed, leading to a potential change in standard care worldwide.

Combination therapy stops loss of kidney function in rare genetic disease

Researchers have discovered that combining two blood pressure-lowering drugs with enzyme replacement therapy can slow the progression of kidney disease in patients with severe Fabry disease. The study found significant reductions in proteinuria and minimal decline in kidney function after an average of two and a half years' treatment.

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.

Air pollution link to clogged arteries

Research reveals air pollution particles can trigger inflammation in blood vessels, leading to atherosclerosis and cardiovascular disease. Exposure to particulate matter increases the risk of heart attacks and strokes.

Rising surface ozone reduces plant growth and adds to global warming

A new study published in Nature finds that increasing surface ozone near the Earth's surface can lead to significant reductions in regional plant production and crop yields. This could undermine the ability of plants and soil to slow down global warming, as they currently store about a quarter of human carbon dioxide emissions.

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.

Accuracy of thyroid hormone testing improved with state-of-the-art test

Researchers at Georgetown University Medical Center developed a fast and accurate test to measure thyroid hormones, which may help diagnose and treat conditions like hypothyroidism and hyperthyroidism. The new test uses tandem mass spectrometry and is more specific than the current immunoassay test.

FDA sees nanotech challenges in every product category it regulates

The FDA's Nanotechnology Task Force report highlights the challenges of regulating nanotechnology across various product categories. With over 500 manufacturer-identified nanotechnology consumer products being sold annually, the agency must ensure the safety of novel products before they enter the market.

Scratch no more: Gene for itch sensation discovered

Researchers discovered the GRPR gene, which codes for a receptor involved in transmitting itch signals from the skin to the brain. Laboratory mice lacking this gene scratched less when exposed to itchy stimuli, suggesting a potential target for anti-itch medication.

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.

Study identifies new gene therapy tools for inherited blindness

Researchers at WashU Medicine have identified hundreds of DNA elements that control when and where genes linked to blindness are turned on. These new elements can be used as switches to activate blindness therapies, offering hope for a potential cure for inherited blindness.

Advanced therapy offers cure for relapsed cancer patient

Testicular cancer patients with metastatic disease can be cured with high-dose chemotherapy and a stem cell transplant, as shown in an Indiana University School of Medicine report. The treatment, which involves carboplatin chemotherapy at five times the standard dosage, has a success rate of over 90%.

The future of medicine -- Insert chip, cure disease?

University of Florida researchers are creating a brain chip to decode signals and stimulate neurons, aiming to treat conditions like paralysis and epilepsy. The technology has the potential to revolutionize medicine, allowing patients to control prosthetic devices with their thoughts.

Graphene oxide paper could spawn a new class of materials

Researchers at Northwestern University have developed graphene oxide paper with superior mechanical properties, potential applications in energy storage, and the ability to be chemically tunable. The material's unique combination of electrical insulation and controlled permeability makes it suitable for various industries.

Learning a second language -- Is it all in your head?

Researchers found that brain structure Heschl's Gyrus predicts successful second language learning. Adults with smaller left HG gray matter need not despair of learning another language, as training strategies can improve outcomes.

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.

Study points to new way to predict death risk from torn aorta

Researchers propose new model for predicting post-hospital death risk in aortic dissection patients based on blood clotting in the false lumen. Partial clotting is associated with a much greater risk of death, while those with patent or completely thrombosed false lumens have intermediate and lower risks respectively.

New NIH-supported study characterizes social networks of family, friends

A new NIH-supported study shows that obesity spreads within social networks, with closer connections increasing the influence on developing obesity. The study analyzed data from the Framingham Heart Study, finding that a person's chance of becoming obese increased by 57% if they had a close friend who became obese.

The Eli and Edythe Broad Foundation invests in gastroenterology's future

The Eli and Edythe Broad Foundation has awarded a three-year grant to the American Gastroenterological Association to support research fellowships for high school students interested in gastroenterology. The program will provide $2,500 each to five students to fund a 10-week research session under the supervision of an approved preceptor.

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.

Humboldt squid on the move

Large Humboldt squid have invaded the sea off Central California, where they are feeding on commercially important fishery species like hake and anchovy. This shift may be linked to a decrease in large tuna and billfish populations in the Equatorial Pacific, allowing the squid to expand their range.

Females more prone to brain damage from alcohol abuse

A recent study by OHSU and VAMC researchers found that female mice are more susceptible to brain cell death after alcohol withdrawal than male mice. The study suggests that women may be more vulnerable to the neurotoxic consequences of alcohol consumption, which could contribute to debilitating cognitive dysfunction and motor deficits ...

Why do people love horror movies? They enjoy being scared

A new study challenges existing explanations for horror movie enthusiasts, suggesting they enjoy the thrill of fear. Researchers found that viewers experience both negative and positive emotions simultaneously, including happiness in frightening moments.

Researchers watch antibiotics, bacteria meet at atomic level

Researchers used powerful imaging techniques to study the atomic level interactions between bacteria and antibiotics, revealing a key enzyme structure that enables gene expression. The findings provide insights into potential new antibiotic designs that can prevent bacterial resistance.

White blood cell booster may help cancer patients avoid deadly complications

A study led by Duke University researchers found that a white blood cell booster can significantly reduce the risk of chemotherapy-related complications characterized by fever and low white blood cell levels. The study, published in the Journal of Clinical Oncology, involved over 3,000 patients and showed that patients taking the drug ...

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.

How to manipulate perceptual focus in advertisements

A new study demonstrates how visual arrangement of alternatives can increase the likelihood of a product being chosen. Grouping options with similar characteristics can emphasize dissimilar options and help them stand out.

GPs antibiotic prescribing practices are still contributing to resistance

General Practitioners (GPs) are still over-prescribing antibiotics for common infections like sore throats and sinusitis, hindering efforts to combat antibiotic resistance. The analysis of the world's largest primary care database found that prescriptions for these conditions rose to 80% despite guidance warnings.

Study finds 30-minute CPR classes just as effective as multihour courses

A 30-minute video-based training session is as effective as a three- to four-hour course in teaching laypersons basic life-saving techniques. At six months after training, those who took the shorter course performed CPR and used an AED just as well or better than those who took the traditional training.

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.

Polar expeditions -- Bad and good for the mind

People on polar expeditions often experience disturbed sleep, impaired cognitive ability, and interpersonal tension. However, many also report feelings of camaraderie, mutual support, and personal achievement, highlighting the complex impact of these extreme environments on mental health.

Obesity is 'socially contagious'

A study by Harvard and the University of California, San Diego found that obesity is socially contagious, spreading from person to person in a social network. The greatest effect was seen among friends, with a 171% increase in chances of becoming obese if a mutual friend becomes obese.

UCLA study links air pollution to clogged arteries

A new UCLA study finds that combining diesel exhaust particles with cholesterol fats leads to a dangerous synergy that causes blood vessel inflammation and cardiovascular disease. The researchers discovered that the interaction activates genes promoting cellular inflammation, accelerating the narrowing and blockage of blood vessels.

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.

Hand gestures dramatically improve learning

A study found that hand gestures significantly enhance learning, with 90% of students recalling algebraic concepts after three weeks. The method taps into the need to experience information through interacting with the environment, making it a free and effective teaching aid.

Obesity spreads through social networks

Researchers found that when an individual gains weight, their friends and siblings have a significantly increased risk of becoming obese. The closer two people are in a social network, the stronger the effect. Geographical distance appears to have no effect, suggesting that environmental factors play a smaller role.

Study finds contaminated water reaching Florida's offshore keys

A new University of Georgia study reveals that sewage-contaminated groundwater is contaminating coral reefs up to six miles offshore in the Upper Florida Keys. The study found common fecal indicator bacteria and human viruses in surface water, groundwater, and corals.

Enzyme discovery sheds light on vitamin D

Researchers at Queen's University have made a groundbreaking discovery about the breakdown of vitamin D, revealing that changing a single amino acid in the hydroxylase enzyme can alter its pathway. This finding has significant implications for the treatment of cancer and other diseases associated with vitamin D deficiency.

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.

Picky eating potentially perilous for bats

Researchers found that specialized diets of bat species may contribute to their extinction risk. Contrary to previous studies, dietary breadth was not related to geographic range size or wing structure.

Switchable adhesive

Scientists create a surface pair that sticks together in response to an environmental stimulus, allowing for reversible detachment. This discovery could lead to innovative applications in microfluidic systems, actuators, and pharmacological agents.

Novel approach for rapid identification and development of malaria vaccines

Researchers have developed a novel approach for rapid identification of malaria vaccine candidates using bioinformatics and peptide synthesis. This approach has been shown to effectively inhibit parasite growth in vitro with purified human antibodies, potentially reducing the time and cost associated with developing new vaccines.

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.

Other highlights in the July 24 JNCI

A recent study found a significant decline in breast cancer incidence in 2003, coinciding with a drop in hormone therapy use. Breast density and sex hormone levels are also independent risk factors for breast cancer in postmenopausal women.

Seeing colors -- New study sheds light on sensory system quirk

Researchers used the Stroop task to test grapheme-color synesthetes, finding that opponent incongruent colors made it difficult for them to respond quickly. However, memories of objects associated with those same colors were not affected by color change. These findings suggest that synesthetic colors are perceived in a realistic way.

Fluke 87V Industrial Digital Multimeter

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

University of Leeds strengthens China links in membrane and neurobiology

The University of Leeds is joining forces with leading Chinese scientists in membrane and neurobiology to enhance research outputs and international profiles. The partnership aims to collaborate on studies focusing on ion channels, membrane transporters, and the flow of membranes between cellular compartments.

Drug protects brain cells in Huntington's disease model, researchers find

Researchers at UT Southwestern Medical Center have found that a drug called tetrabenazine (TBZ) prevents death of brain cells in mice genetically engineered to mimic Huntington's disease. The study sheds light on the biochemical mechanisms involved in the disease and suggests new avenues of study for preventing brain-cell death.

Older is better -- Top-10 comparison of diabetes drugs give metformin top grade

A study by Johns Hopkins Medicine found that metformin, a widely used diabetes medication, offers distinct advantages over nine other medications in controlling blood sugar levels, weight gain, and bad cholesterol levels. The medication was also found to be less expensive than newer options, with annual treatment costs averaging $100.

Additional mammogram readers improve breast cancer detection

A study published in the Journal of the National Cancer Institute found that adding readings by non-physician technologists to standard mammograms read by two radiologists increased breast cancer detection rates by 6.8%. This improvement was achieved with a minimal increase in false positives.

Meta Quest 3 512GB

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

Success rates for prostate cancer depend on experience of surgeon

A study published in the Journal of the National Cancer Institute found that experienced surgeons perform more successful prostate cancer surgeries, with a steeper learning curve. As surgeons gain experience, patient outcomes improve, but beyond 250 operations, additional experience has little influence on cancer recurrence rates.