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Science News Archive April 2007


Page 9 of 17

Tip sheet Annals of Internal Medicine, April 17, 2007

A new meta-analysis of published research concludes that chondroitin has little effect on knee or hip pain caused by arthritis, while a clinical trial testing two different ways to treat Helicobacter pylori infection found sequential therapy cured the infection more often than standard treatment.

Ancient amphibians evolved a bite before migrating to dry land

Researchers from Harvard University found that ancient aquatic amphibians developed the ability to feed on land before transitioning to terrestrial life. Analysis of skull bones reveals that these extinct animals captured prey by biting or sucking it into their mouth, with one key species showing signs of biting behavior.

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.

Should primary care doctors assess safety of older drivers?

A recent editorial by Dr. Malaz Boustani suggests that primary care physicians should not assess the safety of older drivers due to resource constraints and potential conflicts of interest. The editorial is based on a survey of Canadian family physicians, who reported low confidence in assessing driving fitness.

Johns Hopkins begins aggressive screening for 'superbugs' in children

The hospital has introduced more stringent admission screening methods for MRSA and VRE, detecting many more carriers before infection or spread. Weekly swab testing and bacterial growth cultures were effective in identifying patients with the germs, missing only 35% of those with MRSA.

Massey researchers induce cell death in leukemia

Researchers at Virginia Commonwealth University Massey Cancer Center have induced cell death in leukemia cells using a combination of bortezomib and romidepsin or belinostat. The findings suggest potentiated lethality and additive effects in human CLL cells.

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.

UCSF brain tumor vaccine trial shows promising results

A clinical trial at UCSF Brain Tumor Research Center has shown promising results using the vitespen vaccine to stimulate the immune system to attack tumor cells. The vaccine, made from a patient's own tumor, induced a tumor-specific immune response in all 12 study patients.

From silicon to the sea: Managing heat aboard modern ships

Researchers at Rensselaer Polytechnic Institute are working to develop new cooling techniques to manage heat aboard modern ships. The project aims to reduce device temperatures below 50 degrees Celsius using novel electronic cooling systems, including liquid cooling and nanoparticle suspensions.

Smoking ban dramatically reduces air pollution in Irish pubs

A national smoking ban in Ireland resulted in a significant reduction in air pollution in pubs, with an 83 percent decrease in airborne carcinogens. The ban also improved the respiratory health of bar workers, particularly non-smoking employees, who showed improvements in cough and phlegm production.

Tennessee researcher earns Komen grant to study depression and breast cancer

A University of Tennessee researcher has been awarded a $296,000 Komen grant to conduct a groundbreaking study on treating depression in breast cancer patients using behavior therapy. The study aims to determine the effectiveness of two treatments: problem-solving therapy and brief behavior activation therapy.

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.

MS drug helps reduce vision loss

Researchers found that natalizumab significantly reduces vision loss and likelihood of sustained vision loss in patients with relapsing MS. The drug's potential benefits must be weighed against its risks, including progressive multifocal leukoencephalopathy.

Strong marriage helps couples deal with tempermental baby

A new study from Ohio State University found that couples with a strong marital relationship tend to handle temperamental babies better than those without. The study, which involved 97 couples, showed that poor coparenting relationships can have long-term effects on children's behavior.

Wireless sensors limit earthquake damage

Shirley J. Dyke successfully tested wireless sensors in a simulated structural control setting, demonstrating their potential to reduce damage from earthquakes. The technology has the potential to enable less manpower requirements and far less remodeling of existing structures.

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.

Researchers find 'large is smart' when it comes to cities

Researchers found that as cities grow, their creative output increases superlinearly, generating more wealth and innovation. This challenges traditional models of urban growth, suggesting large cities are a source of solutions rather than problems.

Prognosis -- predicting cancer risk in the long term

Researchers found that early age at first birth protects against ERPR-positive breast cancer, but not receptor-negative. Breastfeeding was protective for both subtypes, regardless of when a woman gave birth. Women who delay childbearing may benefit from breastfeeding to reduce their risk.

Apple iPhone 17 Pro

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

Study shows that indigenous people are not genetically prone to diabetes

A recent study by Dr Yin Paradies and colleagues reveals that indigenous people do not have a genetic predisposition to diabetes. The research shows that social factors such as poor diet, reduced physical activity, stress, and low birth weight contribute significantly to the high rates of diabetes among indigenous populations.

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.

DOE commits $27.5M for uranium contaminant transport field studies

The Department of Energy has awarded $27.5 million for two field research studies to investigate contaminated groundwater at the Hanford Site in Washington and a uranium mill tailings site in Colorado. The studies aim to identify new approaches to resolve questions about subsurface contaminant movement.

Scientists find major susceptibility genes for Crohn's disease

A consortium of Canadian and American researchers have identified three major genetic risk factors for Crohn's disease: PHOX2B, NCF4, and ATG16L1. These findings highlight biological pathways not previously thought to play a role in the disease, including altered reactive oxygen species production and autophagic processes.

Chromosomes tell tale of patient's risk for new, future cancer

Researchers found that Hodgkin's disease survivors with higher chromosomal aberrations are two-and-a-half times more likely to develop another type of cancer. Chromosomal breaks, particularly those on one chromosome arm, may serve as a biomarker for predicting second primary tumor risk.

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.

MicroRNAs as tumor suppressors

Researchers found that microRNA let-7 binds to HMGA2 mRNA transcript, suppressing its expression and preventing tumorigenesis. This establishes HMGA2 as a target of let-7, highlighting the potential role of microRNAs in cancer prevention.

Scientists find major susceptibility gene for Crohn's disease

A study published in Nature Genetics identifies PHOX2B, NCF4, and ATG16L1 as genetic risk factors for Crohn's disease. The research highlights the role of neuroendocrine cells and altered reactive oxygen species production in increasing disease susceptibility.

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.

Scientists find new genes for Crohn's disease

Researchers identify three genetic variants associated with an increased risk of Crohn's disease, including PHOX2B, NCF4, and ATG16L1. These discoveries offer new insights into the biological pathways underlying the disease and may lead to more effective therapies.

Research team identifies additional genetic risk factors for Crohn's disease

A research team has identified several novel genetic variations associated with the risk of Crohn's disease, which could improve understanding of the disease process and lead to new therapies. The study found that one of the newly identified genes, ATG16L1, plays a crucial role in autophagy, a biological pathway involved in inflammation.

New diagnostic technologies offer non-invasive means

Researchers have developed tests that diagnose, predict or monitor cancer risks without invasive tissue sampling, benefiting underserved populations. DNA methylation mapping from exhaled breath can identify early-stage lung cancer, while an oral rinse test detects head and neck squamous cell carcinoma

Diseased brain cells more involved in ALS-associated motor neuron death

Researchers found that astrocytes, carrying a mutated gene, induce motor neuron death in ALS patients. The study suggests that targeting these cells may lead to effective therapies and earlier diagnoses. This discovery could involve transplanting embryonic stem cells to replace damaged neurons.

Fluke 87V Industrial Digital Multimeter

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

USC study identifies factors attributed to later stage cancer diagnosis

A USC study found that patients with later stage cancer diagnoses were more likely to live in unsafe neighborhoods, use public transportation, and travel long distances to receive medical care. The study suggests that addressing neighborhood conditions and prioritizing health care can help reduce late-stage cancer diagnoses.

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.

Novel antigen-cloning technique may boost efforts to develop a melanoma vaccine

Researchers at The Wistar Institute have developed a novel antigen-cloning technique that may boost efforts to develop a melanoma vaccine. The new approach has been used to identify a tumor antigen called ribosomal protein L8 (RPL8), which has the potential to elicit both helper T cell and cytotoxic T-lymphocyte responses.

'Night owls' report more insomnia-related symptoms

A study published in JCSM found that 'night owls' experience more sleep/wake irregularities and waking distress due to insomnia. Insomnia affects 30% of adults, leading to serious health problems like depression, obesity, and cardiovascular disease.

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.

Breathing for better lung health

A study by UNC researchers found that normal breathing's rhythmic motion regulates mucus clearance, promoting lung health in CF patients. This rhythm also re-hydrates airways, accelerating mucus removal.

Blame the brain for high blood pressure

Scientists at the University of Bristol have found that inflammation caused by trapped white blood cells can obstruct blood flow to the brain, leading to poor oxygen supply. This discovery suggests a new mechanism for high blood pressure, with potential therapeutic targets for treatment.

Investigational cancer drug targets critical proteins

Researchers discovered that an investigational cancer drug selectively kills cancer cells due to its affinity for a modified version of heat shock protein 90. The modification, called acetylation, allows the drug to target and block the activity of this protein, promoting cell survival.

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.

ATR checkpoint-activating DNA structure

Researchers have identified a minimal DNA structure that activates the ATR-mediated DNA damage checkpoint in a cell-free system. This discovery enables precise control and quantitative probing of checkpoint signaling responses.

Microbes start immune response by sneaking inside cells

Researchers have discovered that bacteria can enter immune system cells through a pore in the cell membrane, triggering an immune response without activating Toll-like receptors. This finding offers new perspectives for developing human vaccines and drugs that target inflammatory responses in autoimmune diseases like rheumatoid arthritis.

Meta Quest 3 512GB

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

High-pressure chemistry in ultra small pressure cooker

Researchers created ultra-small microreactor chips that increase chemical reaction rates by up to 1.7 times, reducing safety risks and increasing efficiency. The miniaturized Total Analysis System (µTAS) is now a feasible future technology.

LSU professor helps India prepare for impact of global warming

An international science team led by LSU professor Robert Twilley is developing an environmental observation system for India to help reduce climate-related risks. The system will provide a scientific foundation for long-term government policies aimed at meeting international accords on greenhouse gas emissions.

Study shows hope for early diagnosis of Alzheimer's

Researchers at Rowan University and Penn Medicine developed a high-accuracy method to diagnose early-stage Alzheimer's using EEG signals. The test, which can be done in a physician's office, has an accuracy rate of 82-85% and may provide earlier treatment and improved quality of life for those affected.