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Science News Archive May 2008


Page 17 of 22

Everything's coming up corals

Two UM students, Rachel Silverstein and Nitzan Soffer, receive prestigious NSF fellowships for their doctoral work on coral reefs. The lab is led by Dr. Andrew Baker, a pioneer in developing techniques to enhance coral thermal tolerance.

CSHL scientists are part of consortium that sequences platypus genome

A consortium of scientists including CSHL's Gregory J. Hannon report findings about mammalian evolution gleaned from comparative study of small-RNA function in platypus, revealing unique characteristics such as egg-laying and venom delivery. The platypus genome also shows conserved small-RNA roles across species.

Apple iPhone 17 Pro

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

Dying bats in the Northeast remain a mystery

The U.S. Geological Survey is investigating the cause of thousands of bat deaths in the northeastern US, with most affected species showing signs of emaciation and poor body condition. Environmental samples have been collected to determine if toxicants or secondary microbial pathogens are contributing to the illness.

Major shift in HIV prevention priorities needed

Researchers argue that male circumcision and reducing multiple sexual partners are more effective HIV prevention strategies than condom promotion, HIV testing, and other approaches. Studies have shown significant reductions in HIV risk with these interventions, particularly in west Africa and Uganda.

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.

Newest GREET model updates environmental impacts

The updated GREET model allows researchers to simulate new fuel pathways, including ethanol from Brazilian sugarcane and bio-butanol production. The model also evaluates the energy consumption required for producing aluminum in sport utility vehicles.

Berkeley researchers identify photosynthetic dimmer switch

Researchers identified pigment-binding protein CP29 as a valve regulating excess solar energy during photosynthesis. The study suggests that ambient pH levels can control the dimmer switch's opening and closing, with implications for designing artificial photosynthesis systems.

Federal polar bear research critically flawed, says study in INFORMS journal

A study published in INFORMS journal Interfaces found that US polar bear research is flawed due to inadequate forecasting methodologies. The researchers concluded that the studies do not adequately support assumptions about sea ice changes and polar bears' ability to adapt, making it difficult to justify listing the species as endangered.

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.

Spinal cord research heads new $10M funding in London, Ontario

Researchers at the University of Western Ontario have received $10.5 million in funding to study a protein that may control regeneration in spinal cord injuries. The discovery aims to understand how scar tissue inhibits nerve growth and develop effective treatments for the estimated 12,000 annual spinal cord injuries in Canada and the US.

Antiretroviral treatment has reduced adult mortality in Malawi

A study published in The Lancet found that free antiretroviral therapy in Malawi led to a significant reduction in adult mortality, particularly among adults aged 15-59 years. Mortality rates declined by 10% overall, with an even greater drop of 35% observed in areas near the main road where pre-ART mortality was highest.

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.

Bread mold may hold secret to eliminating disease-causing genes

A University of Missouri scientist discovered a mechanism in bread mold that 'silences' unmatched genes during meiosis, protecting the organism from genetic abnormalities. This process, known as MSUD, could have applications in pharmaceuticals and agriculture by precisely targeting unwanted genes.

New study shows how genes control blood proteins important to health

A new study reveals that diet and lifestyle are not the only factors influencing blood protein levels, with genetics playing a significant role. The study identified variations in genes associated with key proteins like HDL cholesterol and interleukins, which play roles in inflammatory diseases.

Combating counterfeit drugs

The US FDA has seen an 800% increase in new counterfeit cases between 2000 and 2006. Antimalarials are a particular target for counterfeiters, flooding the market in many Asian countries. Collaborative approaches involving governments, industries, and international organizations can help combat counterfeiting.

New gas sensors for monitoring carbon dioxide sinks

A novel gas sensor system based on diffusion principle enables large-scale monitoring of CO2 concentrations over areas. The system replaces multiple sensors, reducing costs and improving data accuracy for environmental remediation, landfill monitoring, and indoor air quality.

Magnet Lab researchers make observing cell functions easier

Magnet Lab researchers develop two new biosensors to monitor cellular dynamics and expand optical microscopy capabilities. The new technique enables the observation of two dynamic processes in a single cell for longer periods, speeding up experiments and advancing tumor and developmental biology research.

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.

Surprising discovery: Multicellular response is 'all for one'

A Northwestern University study has discovered that multicellular organisms respond to stress in an integrated manner, with two specialized neurons controlling the response of individual cells. This finding challenges the long-held assumption that cells within a multicellular organism respond individually to stress conditions.

Model successfully predicts large river system fish diversity

Researchers used a neutral model to predict fish diversity in the Mississippi-Missouri River System, demonstrating its potential for analyzing complex systems. The approach, which assumes functional equivalence among species, provides new insights into biodiversity patterns and their relationship with environmental change.

How slow growth as a fetus can cause diabetes as an adult

Research using a rat model of intrauterine growth retardation found reduced Pdx1 expression in pancreatic beta-cells throughout life following IUGR. The molecular mechanisms affecting Pdx1 expression were reversible in the fetus and after birth, but irreversible in adulthood, providing new insight into diabetes development.

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.

JCI online early table of contents: May 8, 2008

Researchers found that slow fetal growth is linked to an increased risk of developing type 2 diabetes in adulthood. They also identified a new gene mutation associated with sudden cardiac death in humans. The study used rat models and human tissue samples to understand the mechanisms behind these diseases.

Stroke survivors walk better after human-assisted rehab

A recent study found that walking therapy for stroke survivors is significantly more effective when conducted by a physical therapist, improving walking speed and symmetry. Human-assisted interventions allow for patient error and harder work, leading to better outcomes.

Made-to-order isotopes hold promise on science's frontier

Researchers at Michigan State University have developed a method to create specific rare isotopes for scientific research, opening doors to new technologies. This capability promises to advance fields like biomedicine, international security, and nuclear energy.

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.

Justice in the brain: Equity and efficiency are encoded differently

A study using fMRI scans found that people prioritize equity over efficiency in allocating donations, with the brain responding differently to both. The insula region was activated by changes in equity, while the putamen responded to efficiency, with the caudate integrating both factors after a decision was made.

New evidence from earliest known human settlement in the Americas

The Monte Verde site in southern Chile provides conclusive evidence of the earliest known human settlement in the Americas, dating back to 14,220 years ago. The discovery supports the theory that early migrants followed the Pacific Coast and confirms the peopling of the Americas was a slower process than previously thought.

Scientists identify key roadblock to gene expression

Researchers have mapped nucleosome organization along genes in Drosophila melanogaster, revealing a critical stop sign for transcription. This discovery highlights the importance of nucleosomes in regulating gene expression and has implications for developing effective anti-viral drugs against HIV.

Computer game's high score could earn the Nobel Prize in medicine

Foldit, a computer game, harnesses players' skills to predict protein folding, a crucial step in understanding biological mysteries. Researchers aim to identify 'protein-folding prodigies' who can speed up the process and potentially find cures for diseases like HIV.

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.

Do antidepressants enhance immune function?

Researchers found that antidepressant medications increased natural killer cell activity in HIV-infected women with and without depression. The study suggests a potential link between antidepressant treatment and improved innate immunity, which could delay HIV disease progression.

Phase III pivotal results presented of VYVANSE to treat ADHD in adults

A phase III pivotal study showed VYVANSE significantly improved ADHD symptoms in adults, including inattention and hyperactivity. The medication provided a 43% reduction in ADHD Rating Scale (ADHD-RS-IV) scores and was associated with a 60% improvement rate on the Clinical Global Impressions-Improvement (CGI-I) scale.

Risks for painkiller abuse do not outweigh benefits in chronic pain

Research presented at the American Pain Society annual meeting found that less than 3% of patients with no history of drug abuse who are prescribed opioids for chronic pain will show signs of possible drug abuse or dependence. Most chronic pain patients do not rely on drugs as a sole solution, and multi-faceted treatment involving phys...

New technique measures ultrashort laser pulses at focus

Researchers developed a device to measure complex ultrashort light pulses in space and time at the focus of lenses, addressing distortions caused by optical components. The SEA TADPOLE system uses interferometry to determine pulse shape and intensity changes in space and time, enabling accurate correction for aberrations.

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.

Taking the sex out of sexual health screening

A study found that young Australian women would accept age-based chlamydia screening, but prefer it be offered universally, rather than based on their sexual history. The researchers suggest that detailed sexual history should not be required before testing women for chlamydia to improve screening rates and reduce stigma.

CIHR news: health research touching lives

The Canadian Institutes of Health Research (CIHR) has announced over $298 million in funding for 764 health research projects across Canada. The funded research will focus on addressing important health issues like cancer, heart disease, and HIV/AIDS.

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.

Over the back fence: gardeners get advice from neighbors, friends

A survey of Minnesota gardeners found that 78% preferred informal advice from friends and neighbors over university extension services. University information was viewed as higher quality but lacked convenient online access, posing a challenge to universities and arboreta.

Prisoner HIV program leads to continuum of medical care after release

The study found that 95% of participants completed the program, linking them to medical care for a year after release. This continuity of care improved health outcomes, reduced costs, and may have reduced HIV transmission. Researchers credited the use of professional social workers with the program's success.

Power from formic acid

Researchers from Rostock have developed a feasible process for the on-demand release of hydrogen, generating it at room temperature from formic acid. The use of formic acid allows the advantages of established hydrogen/oxygen fuel cell technology to be combined with those of liquid fuels.

Amazon under threat from cleaner air

Climate scientists warn that reducing sulphur dioxide emissions from coal burning could lead to increased sea surface temperatures in the tropical north Atlantic, causing droughts in the Amazon rainforest. The study estimates a heightened risk of drought every other year by 2025 and nine out of ten years by 2060.

Meta Quest 3 512GB

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

Obesity can increase dementia risk by up to 80 percent

Research found obesity increases dementia risk by 80%, while being underweight also poses a significant threat. The study, published in Obesity Reviews, analyzed data from over 37,000 people and estimated that 12% of dementia risk can be attributed to obesity.

When bears steal human food, mom's not to blame

Researchers found that black bears acquire behavior to conflict with humans through social learning and isolation, challenging the assumption that mother bears teach their cubs. The study indicates that 56% of mothers did not share behavioral habits with their offspring.

Climate models overheat Antarctica, new study finds

A new study by NCAR and Ohio State University found that climate models consistently overstate Antarctic warming, but still project significant sea-level rise due to melting ice sheets. The researchers suggest that warmer temperatures could slow down or speed up sea-level rise depending on future temperature increases.

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.

Ultrasound first, not CT, for diagnosing suspected acute appendicitis

A new study suggests that color Doppler ultrasound is the preferred imaging modality for diagnosing suspected acute appendicitis in adults, with a 97% specificity rate and 74% sensitivity rate. The test's advantages include lack of radiation exposure and lower cost compared to CT scans.

A new breakthrough on the pathogenesis of fulminant hepatic failure

Research led by Dr. Yi-Jia Lou suggests that LTC4 synthesis enzymes contribute to liver injury in a rat FHF model, leading to accumulation of cys-LTs. The study's findings imply further investigation into the expression and activity of these enzymes in managing viral hepatitis patients.

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.

UCSF receives funding for building from California stem cell agency

The University of California, San Francisco has received a $34.9 million grant from the California Institute for Regenerative Medicine to construct a regenerative medicine building on its campus. The facility will house 25 principal investigators and their teams at full capacity, driving the cross-pollination of scientific ideas.

Biodiversity -- it's in the water

Researchers demonstrate that a simple method using river network geometry and rainfall data can accurately predict fish species diversity patterns in the Mississippi-Missouri basin. The model, which uses just four parameters, captures complex biodiversity patterns without referencing individual fish species.

Fluke 87V Industrial Digital Multimeter

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