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Science News Archive May 2005


Page 13 of 16

Two studies document rise of superbugs in the environment

Two studies document a significant rise in superbugs, including methicillin-resistant Staphylococcus aureus (MRSA), affecting people worldwide. The prevalence of MRSA has more than doubled, with 76% of community-acquired isolates being resistant to antibiotics.

Misunderstanding real cost a barrier to mammography

A new study found that nearly half of women perceived mammography screenings as unaffordable due to misperceptions about insurance coverage. The researchers suggest that private insurers can play a significant role in reducing these misconceptions by providing better educational efforts.

Apple iPhone 17 Pro

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

Audiovisual integration of speech falters under competing demands for attention

Researchers found that audiovisual integration of speech is severely reduced when observers perform a difficult task, even when the talker is clearly visible and audible. This challenges previous claims that multisensory integration occurs without attention, implying a need for attentional resources for cross-sensory binding.

New blood test for ovarian cancer screening

Researchers at Yale University have developed a new blood test for ovarian cancer screening using four biomarkers, showing high sensitivity and specificity. The test predicts cancer in patients whose levels of two or more biomarkers fall within a certain warning area.

New research raises questions about buckyballs and the environment

Recent studies have shown that buckyballs can affect biological systems, but a new study assesses their behavior in water. Scientists found that buckyballs combine into nano-sized clumps, which are more soluble in water than individual carbon molecules, and inhibit the growth of soil bacteria at very low concentrations.

As world warms, vegetation changes may influence extreme weather

A study by Purdue University climatologist Noah Diffenbaugh suggests that vegetation changes can significantly affect extreme weather events. In regions like California and the Great Basin, vegetation feedbacks may lead to more or fewer extreme events depending on the location.

Two studies offer clues about how alcoholic behavior is 'switched' on

Researchers found that increasing dopamine D2 receptors can reduce drinking behavior in mice and rats, while blocking another type of dopamine receptor may also decrease consumption. These findings provide insight into the complex roles of dopamine in alcohol abuse and may lead to molecular-based treatments.

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.

Fear of falling: It's not only grandpa's phobia

A new study finds that fear of falling is surprisingly common among middle-aged African-American adults, affecting their activity levels and overall health. The phobia can lead to a self-fulfilling prophecy, causing individuals to become weaker and more prone to falls.

Combating antibiotic resistance

Researchers propose that antibiotic-mediated DNA damage triggers a bacterial repair mechanism, increasing the likelihood of mutations leading to antibiotic resistance. Blocking this pathway could provide a promising strategy for controlling the spread of superbugs.

MIT profs, colleagues propose plan for nuclear energy

Researchers propose Assured Nuclear Fuel Services Initiative (ANSFI) to provide nuclear fuel services to countries without enrichment capabilities. The initiative aims to prevent proliferation by making it economically attractive for countries to join, reducing the risk of weapons development.

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.

UI researcher studies deafness in fruit flies, humans

Researchers, led by Daniel Eberl, studied the Myosin VIIA gene in fruit flies to understand deafness. They found that this gene is essential for hearing in both fruit flies and humans. This discovery will help scientists design experiments to test specific mechanisms of hearing.

Girl juvenile offenders exhibit more problems, risks than boys

A new study by Ohio State University researchers found that troubled girls in the juvenile justice system face unique challenges, including family-related issues, mental health concerns, and increased risk of psychopathy. The findings emphasize the need for specialized support and resources to address these specific needs.

Hopeful results from interrupted Alzheimer's vaccine study

Researchers found that patients who mounted an immune response against beta amyloid experienced improved memory performance and reduced brain size, suggesting the removal of built-up protein. The new trial aims to stimulate an immune attack without raising brain inflammation risk.

Deep thoughts of a birdbrain

A new study reveals that neurons in a bird's brain region, analogous to the mammalian prefrontal cortex, selectively fire when birds are told to remember and stop firing when they are told to forget. This suggests that the avian brain may be capable of executive control, similar to humans.

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.

Promises made, promises kept?

The Canadian Medical Association Journal reports that prescription drug costs have surpassed $18 billion. This significant increase underscores the importance of disseminating unbiased information to ensure patient safety and healthcare sustainability.

Science, AAAS select two for new minority internship

Genevra Ornelas and Cathy Tran, both graduating seniors, will participate in a 10-week internship at Science magazine to improve diversity in science news reporting. The program aims to expose interns to science writing and promote a more scientifically aware population.

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.

Live reporting

Researchers use ferritin as a reporter gene to track genetic modifications in tumor cells, enabling monitoring of gene therapy's progress. This technique has far-reaching implications for diseases like diabetes, where genes can be tagged and tracked using MRI.

Depression gene may weaken mood-regulating circuit

A brain scan study found that people with a depression-linked gene variant have less gray matter and weaker connections in the mood-regulating circuit. The circuit's connectivity accounted for nearly 30% of their anxious temperament.

Employing ecology to predict and manage emerging infectious diseases

The conference aimed to incorporate ecological methods into traditional epidemiological studies, exploring how environmental changes influence disease dynamics. Experts emphasized the need for building a bridge between ecology and epidemiology to address emerging pathogens effectively.

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.

Research suggests molecular approaches to brain tumor treatment

Glioblastoma multiforme, the most common and least curable form of brain tumors, may be targeted with new molecular therapies. Researchers identified a protein called Fra-1 that controls malignant features of brain tumor cells and a receptor for interleukin 13 that can be augmented by cytokines to increase treatment accessibility.

Health geography study finds health care resources distributed unevenly in Kansas

A study by Debarchana Ghosh found extreme inequality in health care resource availability, with western and southeastern Kansas counties facing significant challenges. The research identified 'high health care resource regions' and 'low or very low health care resource regions,' highlighting the need for policy-makers to address these ...

Mechanism for the captation of nutrients in plants- unknown to date

Scientists at the Elhuyar Fundazioa Institute have identified a previously unknown mechanism for capturing nutrients in plants. The process, which uses micro-vesicles and internal compartments called vacuola, is independent of specific transporters in plasma membranes and can be triggered by saccharose.

USDA forecasts still accurate, but with room for improvement

A study by University of Illinois researchers found that USDA corn production forecasts were more accurate than private forecasts during most periods, but had limited impact on prices. Private market forecasts improved significantly since the mid-1980s, outperforming USDA forecasts in August and other months.

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.

Killer dinosaurs turned vegetarian

Scientists have discovered a new species, Falcarius utahensis, in Utah that provides clues about the evolution of plant-eating dinosaurs. The dinosaur had leaf-shaped teeth and a larger gut to digest plant material, and its neck and forelimbs were more elongated for reaching plants.

Researchers develop promising new gene network analysis method

A new tool for tracing human gene connections has been developed, enabling the study of complex systems like power grids and neural networks. The research used a novel approach to analyze gene activity in response to c-Myc activation, revealing over 1,000 genes significantly altered by the protein.

UCR chemist part of team identifying new areas of gene regulation

A team of researchers, including a UCR chemist, has discovered a novel site of histone acetylation that regulates gene expression in yeast. The study used mass spectrometry to show that this new site is associated with gene activation by attracting the SWI/SNF chromatin remodeling 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.

WHO's HIV initiative at risk of failing

The 3 by 5 program faces challenges in achieving its goal of treating 3 million people with HIV/AIDS, mainly due to insufficient financial resources (US$163 million vs US$174 million) and inadequate WHO staff deployment. Three countries, India, South Africa, and Nigeria, are crucial in addressing the issue, especially in Africa where o...

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.

Treat depression and chronic pain separately, U-M researchers say

A recent study found that fibromyalgia patients' level of depression has little impact on their intensity of pain experience, suggesting that treatments for each condition should be considered separately. Researchers hope that separating these two complex conditions can lead to more effective pain management.

Study examines measurement of service sector R&D

The study found that classification of research and development in the services sector has become increasingly difficult due to blurring lines between manufacturing and services. The researchers make recommendations for improved definitions and revised wording of questions to improve accuracy.

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.

The relationship between clinical depression and chronic pain

Researchers studied brain activity in fibromyalgia patients to understand depression-pain connection. They found heightened sensitivity to pressure-induced pain in FM patients, regardless of depressive symptoms. The study suggests treating depression and physical pain separately for better outcomes.

Cancer exploits the body's wound-healing process

Breast cancer tumors hijack normal wound-healing processes by exploiting stromal cells' production of SDF-1, which recruits endothelial precursor cells for tumor growth. This process enables tumors to access nutrients and grow unchecked.

A candidate biomarker to improve treatment of lupus patients

A recent study has associated high expression of interferon-inducible genes with increased disease severity in SLE patients, including kidney disease. The findings suggest that determining the expression of these genes may help select patients for clinical studies.

Meta Quest 3 512GB

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

Routine procedure during childbirth provides no benefits, study review finds

A study by University of North Carolina researchers finds that routine episiotomy during childbirth does not reduce pain or prevent complications, but may cause more harm. Women who underwent the procedure were more likely to experience urinary and fecal incontinence, pelvic organ prolapse, and impaired sexual function.

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.

Pitt Professor awarded competitive Sloan Research Fellowship

A Pitt professor has been awarded a prestigious Sloan Research Fellowship to study brain communication and its impact on mental disorders like schizophrenia. The two-year, $45,000 fellowship will fund his research into how brain areas interact during normal behaviors and how this interaction breaks down in schizophrenia.

Small glaciers in Northern California buck

Researchers found that small glaciers in Northern California are remaining stable due to higher precipitation rates. This anomaly highlights the need for further study on glacier behavior and provides insight into climate variability over thousands of years.

Federal agencies partner to document endangered languages

The U.S. National Science Foundation and NEH have launched an effort to document dying languages worldwide using modern cyberinfrastructure tools. Over $40 million in funding supports various research projects, including language documentation, archival digitization, and fellowship awards.

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.