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Science News Archive April 2009


Page 9 of 24

The price of pain and the value of suffering

Researchers found that demand for pain relief is almost completely dependent on recent past pain experience and available cash. The study's results suggest that the value of pain relief is flexible and cannot be predicted by individual behavior, with significant economic implications.

IUPUI study reports inherited impulsivity predicts alcoholism

A recent study by Indiana University researchers found that genetic predisposition to impulsivity is a trait predictive of alcoholism. The study used selective breeding to produce mice with high and low alcohol-preferred genes, which demonstrated that predisposition to impulsivity is predictive of alcoholism.

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.

PDAs, more education help doctors follow cholesterol treatment guidelines

A new study suggests that patients with high cholesterol receive better care when physicians use a variety of tools, including PDAs, to learn and apply clinical practice guidelines for treating the condition. This multifaceted strategy improved guideline adherence by reducing over-treatment and increasing appropriate treatment decisions.

Telesso initiates post-market head-to-head peripheral IV catheter study

A head-to-head clinical trial will enroll approximately 400 patients at three world-class sites to compare Telesso's novel guide-wire assisted peripheral IV catheter with the industry standard. The trial aims to reduce safety risks, lessen patient pain and discomfort, and provide cost savings.

Measuring snow with a bucket, a windmill and the sun?

The USGS has developed an energy-efficient system to measure snowfall in remote areas of Maine, using a bucket, small windmill, and solar panels. This innovative solution helps predict floods from spring snowmelt and saves lives by providing accurate information.

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 identify missing target for calcium signaling

A team of researchers has discovered a missing trigger for calcium signaling in cells, which controls muscle contraction, nerve-cell transmission, insulin release, and other essential functions. The study found that two-pore channels (TPCs) cause the release of calcium when stimulated by NAADP, and are located in lysosomes and endosomes.

Reef boom beats doom

Coral reefs in Australia's Great Barrier Reef Marine Park have recovered rapidly from a devastating bleaching event in 2006, thanks to an exceptional combination of ecological mechanisms. Asexual reproduction played a vital role in the recovery process.

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.

Science Chicago a world-class success

The Science Chicago program is raising awareness about the significance of science in everyday life, offering opportunities for people of all ages to learn and have fun with science. The initiative features various activities, including Science Works!, Science Saturdays, LabFests! and Jr. Science Cafes.

Animals that seem identical may be completely different species

DNA analysis reveals two distinct species of worm that resemble each other in appearance, leading to a reevaluation of the Earth's biodiversity. The discovery could have significant consequences for laboratory testing and our understanding of environmental toxins.

Blood transfusions and outcomes

A comprehensive review of medical literature by experts found no evidence supporting beneficial effects from blood transfusions. Studies show associations with higher rates of complications like heart attack, stroke, and kidney failure, highlighting the need for restricted practice and safer storage methods.

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.

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.

Remembrance of things past influences how female field crickets select mates

Research by UC Riverside biologists reveals that female field crickets learn to recognize attractive male characteristics through song, influencing their mate selection. This finding underscores the importance of social effects in models of evolution, suggesting that insects possess complex cognitive capacities.

UT Southwestern researchers probe kidney damage, protection in lupus

UT Southwestern researchers have discovered a link between immune cell malfunction and kidney damage in lupus patients. They also found that certain genes, such as kallikreins, appear to protect the kidneys from immune attack, suggesting potential new treatments for the disease.

Our penchant for rarity could threaten conservation efforts

A study published in PLOS ONE found that people are more attracted to rare species, leading to longer download times and increased attempts to access them. This perceived value of rarity poses a threat to conservation efforts, particularly in the context of ecotourism and exotic pet trade.

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.

Plants could override climate change effects on wildfires

A new study found that changes in vegetation can override climate change effects on wildfire frequency. Plant types and abundance play a significant role in determining an ecosystem's flammability. In some cases, vegetation changes were more influential than climate shifts, leading to fewer fires.

What's protected, what's not?

The Protected Areas Database – United States (PAD-US) is a national inventory of protected lands in the US. The database contains information on over 22,000 highly protected areas, covering 15% of the country's land area.

Meta Quest 3 512GB

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

Ability grouping in elementary school hampers minority students' literacy

A new study by University of Illinois professor Christy Lleras found that ability grouping in elementary school impairs the literacy of lower-grouped minority students, while having little effect on higher-grouped minority students. The practice creates larger achievement gaps among minority students and exacerbates inequality.

Increasing Antarctic sea ice extent linked to the ozone hole

Researchers from British Antarctic Survey and NASA found that the ozone hole has strengthened surface winds around Antarctica, leading to greater flow of cold air over the Ross Sea. This resulted in a small increase in sea ice extent in West Antarctica, contrary to the expected effects of greenhouse gas increases.

Emotional health affects exercise patterns in breast cancer patients

A study of 227 breast cancer patients found that those with greater depressive symptoms and lower emotional quality of life were less likely to exercise as part of their recovery. Despite initial increases, physical activity declined over time, suggesting the need for future interventions to support long-term engagement.

ACP releases new resource to help patients managing high blood pressure

The American College of Physicians has released a guidebook and DVD to assist patients in managing high blood pressure, a condition that increases the risk of heart disease, stroke, and kidney problems. The resource provides information on causes, risk factors, and lifestyle changes to control hypertension.

Natural protein may halt colorectal cancer's spread

Researchers at Medical College of Wisconsin discovered that CXCL12 can prevent colorectal cancer cells from adhering to underlying proteins, leading to programmed cell death. The study suggests a potential mechanism for slowing cancer spread and improving patient prognosis.

CalDigit TS4 Thunderbolt 4 Dock

CalDigit TS4 Thunderbolt 4 Dock simplifies serious desks with 18 ports for high-speed storage, monitors, and instruments across Mac and PC setups.

EPA's P3 award winners celebrate a green future

The EPA P3 award winners are recognized for their sustainable designs, including integrated aquaculture systems and solar thermal combined cycles. These projects demonstrate the potential for economic growth and environmental sustainability to coexist.

Lip-reading computers can detect different languages

Scientists at the University of East Anglia have created lip-reading computers that can accurately identify different languages spoken by individuals. The technology uses statistical modelling of lip motions and was tested on a group of bilingual and trilingual speakers, achieving high accuracy rates across multiple languages.

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.

Ultrasound imaging now possible with a smartphone

Researchers have successfully coupled USB-based ultrasound probe technology with smartphones, enabling compact, mobile medical imaging devices. This innovation has far-reaching implications for global healthcare, particularly in developing countries where access to medical imaging is limited.

New treatment shows promise against recurrent gynecologic cancers

A new combination of chemotherapy drugs, topotecan and docetaxel, has produced clinical benefit for patients with recurrent gynecologic cancers. The treatment showed an unusually high proportion of women experiencing clinical benefit, with a median survival time of 18.5 months.

Apple iPhone 17 Pro

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

Translating the conversation between the brain and blood vessels

Researchers Francois Abboud and Ann M. Schreihofer have unraveled how the brain regulates blood pressure and flow through communication with blood vessels. Their work has led to clinical advances, including a pacemaker-like device to lower blood pressure in hypertensive individuals.

Fluke 87V Industrial Digital Multimeter

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

World's brightest X-ray machine comes online at SLAC

The Linac Coherent Light Source (LCLS) produces the world's brightest X-ray laser, allowing researchers to capture molecular details with unprecedented resolution. This technology has far-reaching implications for medicine, energy research, and other fields.

Louse infestation calibrates immune system regulation

Researchers studied louse infestation's effect on immune activity in wild wood mice, finding reduced readiness to mount an immune response. This suggests a potential immunosuppressive effect of the parasite, supporting the idea that modern human populations have heightened immune responsiveness due to reduced exposure to parasites.

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.

LSUHSC student awarded top national honor for diabetes research

A LSUHSC student has developed a groundbreaking treatment for diabetes using ACE2 gene therapy, which improves pancreatic beta cell function and restores glucose stability in diabetic mice. The award recognizes the student's outstanding research contributions to the field of endocrinology and metabolism.

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.

Too much or too little sleep increases risk of diabetes

Researchers at Université Laval found that people who sleep too much or not enough are at greater risk of developing type 2 diabetes or impaired glucose tolerance. Approximately 20% of those with long and short sleep duration developed type 2 diabetes, compared to only 7% among average sleepers.

Walnuts may prevent breast cancer

A study by Elaine Hardman found that walnut consumption can reduce breast tumor incidence in laboratory mice. Walnut consumption delayed tumors by at least three weeks, with molecular analysis showing increased omega-3 fatty acid intake contributing to the decline.

Exercise protects against damage causing leakage in the blood-brain barrier

A study published at Experimental Biology 2009 found that regular exercise prevents the disruption of the blood-brain barrier caused by methamphetamine use. The study showed that exercising mice were protected from increased oxidative stress and permeability in the brain, while sedentary mice experienced damage.

Witnessing violence affects kids' health

Exposure to community violence in school-aged children disrupts their normal cortisol production pattern, leading to physiological symptoms and potential long-term negative health effects. The study found a link between stress symptoms and cortisol levels, highlighting the need for healthcare providers to monitor these children's health.