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Science News Archive January 2012


Page 21 of 24

Researchers discover new culprit in atherosclerosis

A new study by NYU Langone Medical Center researchers identified netrin-1 as a molecule that blocks the normal migration of macrophages out of arteries, causing them to accumulate and promote atherosclerosis. Genetically deleting netrin-1 can minimize atherosclerosis, reduce macrophage levels in plaque, and promote macrophage migration.

New test spots early signs of inherited metabolic disorders

A new test can identify biomarkers for mucopolysaccharidoses (MPS), a group of inherited metabolic disorders, allowing for earlier diagnosis and potentially more effective treatment. The test detects specific carbohydrate structures in cells, blood, and urine samples, enabling differentiation between forms of the disease.

Exercise in a pill may protect against extreme heat sensitivity

A compound called AICAR has been found to prevent heat-induced deaths in mice with a gene mutation that makes them sensitive to heat. The study's findings suggest that AICAR could protect young athletes and soldiers from heat-related illnesses, potentially saving lives during exercise.

Colorado mountain hail may disappear in a warmer future

A new study suggests that Colorado's Rocky Mountains will experience a near elimination of surface hail by 2070. The warmer climate could lead to more runoff and an increased risk of flash floods. Meanwhile, intense storms may produce more hail inside clouds, but it will melt quickly and fall as rain.

Apple iPhone 17 Pro

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

Simpler times: Did an earlier genetic molecule predate DNA and RNA?

Researchers investigated alternative nucleic acids that differ slightly from DNA and RNA, aiming to uncover a simpler genetic molecule. TNA, with its threose sugar backbone, showed promise as an early genetic carrier, folding into complex shapes that bind to targets with high affinity and specificity.

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.

Graphene reveals its magnetic personality

Researchers at the University of Manchester have successfully made graphene magnetic by introducing vacancies and nonmagnetic atoms. The study's findings hold promise for future applications in spintronics and electronics, despite the tiny magnetism observed.

2 genes affect anxiety, behavior in mice with too much MeCP2

Researchers found that Crh and Oprm1 genes are implicated in anxiety and social behavior problems caused by excess MeCP2 protein in mice. Reducing levels of these genes alleviated symptoms, suggesting a potential treatment approach for patients with MeCP2 duplication syndrome.

Team finds a better way to gauge the climate costs of land use changes

A new study in Nature Climate Change presents a more complete picture of the climate costs of land use changes by incorporating biophysical effects beyond greenhouse gases. The researchers found that tropical rainforests are highly valuable for protecting against climate warming, while boreal forests have lower climate regulation values.

'Couch potato pill' might stop heat stroke too

Researchers found that AICAR, an experimental therapy, protected animals from heat-induced sudden death and may hold promise for treating people with enhanced susceptibility to heat stroke. The drug works by reducing calcium leakage from RYR1, thus diminishing heat-induced contractions and muscle damage.

Utah biologist wins 2011 AAAS Public Engagement with Science Award

Nadkarni has made a significant impact through her public engagement activities, raising awareness of environmental and conservation issues among diverse audiences. Her initiatives include the Sustainable Prisons Project, Tree-Top Barbie, and the Research Ambassadors Program, promoting science education and outreach.

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.

A decade of research proves PET effectively detects dementia

A new review of imaging studies confirms that positron emission tomography (PET) safely and accurately detects dementia, including the most common form among the elderly, Alzheimer's disease. The study found that combining PET with a biomarker called 18F-FDG can pinpoint key areas of metabolic decline in the brain indicating dementia.

Experts offer pointers for optimizing radiation dose in pediatric CT

The article highlights the importance of justification and optimization of pediatric CT protocols to reduce radiation dose. Experts recommend using lower tube current, restricting scan length, and employing image post-processing techniques to minimize radiation exposure while maintaining diagnostic quality.

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.

Tiny worm points to big promise

Researchers at Northwestern University identified nine core genes that protect cells from protein misfolding, a common cause of over 300 diseases. They also discovered seven classes of small molecules that restore proper protein folding and reduce disease progression.

Tobacco company misrepresented danger from cigarettes

A new UCSF analysis of tobacco industry documents reveals that Philip Morris USA manipulated data on the effects of additives in cigarettes, including menthol. The researchers found that hundreds of additives should be eliminated from cigarettes due to their potential to increase health risks for smokers.

The nuclear, biological and climate threat - 2011 reviewed

The Bulletin of the Atomic Scientists' special issue reviews 2011's top threats, including Iran's nuclear program, Fukushima's aftermath, and a growing partisan divide in US climate policy. The Doomsday Clock Symposium evaluates the world's progress on biological threats and nuclear disarmament.

Salk scientists map the frontiers of vision

Researchers at the Salk Institute have produced neuron-by-neuron maps of the mouse brain's visual processing system, laying the groundwork for decoding brain circuitry using genetic research techniques. The study revealed specialized roles for different areas in processing visual information, including direction and fine detail.

Meta Quest 3 512GB

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

Study shows no evidence of a mortality benefit to PSA screening

Men in the Prostate, Lung, Colorectal and Ovarian Cancer Screening Trial had no evidence of a mortality benefit from annual PSA testing compared to usual care. The study found a higher percentage of deaths from other causes among prostate cancer patients diagnosed with PSA screening, indicating over-diagnosis.

Creality K1 Max 3D Printer

Creality K1 Max 3D Printer rapidly prototypes brackets, adapters, and fixtures for instruments and classroom demonstrations at large build volume.

Hopes for reversing age-associated effects in MS patients

A study published in Cell Stem Cell highlights the possibility of reversing ageing in the central nervous system for multiple sclerosis (MS) patients. The age-associated decline of remyelination, a regenerative process, can be reversed using inflammatory cells from young mice.

Scientists characterize protein essential to survival of malaria parasite

Researchers at Washington University have characterized a protein crucial to the life of the malaria parasite, Plasmodium falciparum. The enzyme, phosphoethanolamine methyltransferase (PMT), is an ideal target for new antimalarial drugs due to its unique characteristics and lack of homologues in humans.

Study finds age-related effects in MS may be reversible

A study published in Cell Stem Cell found that defects in myelin sheath regeneration surrounding nerves can be at least partially corrected following exposure to young immune cells. This suggests that regenerative therapies may work throughout the duration of MS, regardless of age. The findings provide new hope for treating this disease.

Implanted biofuel cell converts bug's chemistry into electricity

Researchers at Case Western Reserve University developed an implantable biofuel cell that converts a cockroach's internal chemicals into electricity. The device can provide enough power to control the bug or transmit sensor data, and has shown promise for long-term use without harming the insect.

Better research is needed to understand why elders are happier

Older people tend to be happier due to focusing on positive events and emotions, but direct links between these strategies and mood changes are lacking. More research is needed to clarify the relationship between cognitive processes and happiness in older adults.

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.

CCNY's Robert Alfano wins first biomedical optics award

Robert Alfano, CUNY Distinguished Professor of Science and Engineering at CCNY, receives the Britton Chance Biomedical Optics Award for developing non-invasive optical biopsy methods that provide molecular information on cancer cells. His techniques can eliminate wait times and reduce physical trauma of surgery.

Mass prostate cancer screening doesn't reduce deaths

New research confirms that annual prostate cancer screening does not reduce deaths from the disease, even among men in their 50s and 60s with underlying health conditions. The study found that six years of aggressive screening led to more diagnoses of tumors but not fewer deaths.

Celestron NexStar 8SE Computerized Telescope

Celestron NexStar 8SE Computerized Telescope combines portable Schmidt-Cassegrain optics with GoTo pointing for outreach nights and field campaigns.

Hybrid silkworms spin stronger spider silk

Scientists at the University of Notre Dame have successfully engineered silkworms to produce fibers with the strength and elasticity of spider silk. This breakthrough could lead to the development of new materials for sutures, wound dressings, artificial limbs, and other textiles. The researchers used a transgenic engineering approach ...

Rare and National Geographic announce winners of 'Solution Search'

The Wildlife Conservation Society won the grand prize with its solution, Bycatch Escape Gaps for Fish Traps in Curaçao and Kenya, receiving a $20,000 prize. The two runners-up received prizes of $5,000 each for their respective solutions. The winners will receive their awards at a ceremony in Washington, D.C., on February 8.

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.

Relay race with single atoms: New ways of manipulating matter

Researchers have successfully visualized relay reactions at the atomic scale using a scanning tunneling microscope. This breakthrough allows for controlled transfer of hydrogen atoms along molecular chains, potentially enabling new information exchange methods in future electronics.

Dialysis treatments go green

A new study finds that solar-powered hemodialysis can reduce power costs by up to 76.5% and generate effectively free energy. The researchers advocate for implementing water conservation and waste management systems in dialysis programs to further reduce environmental impact.

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.

Couch potato or elite athlete? A happy medium keeps colds at bay!

Regular moderate exercise reduces the risk of catching respiratory infections like colds by up to a third, thanks to long-term improvement in immunity. However, prolonged strenuous exercise increases the likelihood of illness, making athletes more susceptible to upper respiratory tract infections.

The bigger picture of population genomics

Researchers have developed a software package called PoPoolation2 to compare population data, facilitating the study of evolution and adaptation. The tool uses next-generation sequencing methods to determine allele frequencies between populations, providing insights into evolutionary processes.

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.

Light makes write for DNA information-storage device

A team of researchers has created a 'write-once-read-many-times' DNA-based memory device that can encode information using ultraviolet light. The device, made from salmon DNA and silver nanoparticles, retains information indefinitely.

Whiff of 'love hormone' helps monkeys show a little kindness

Researchers found that oxytocin administration enhanced prosocial choices in rhesus macaques, making them pay attention to each other and choose to give juice to a neighbor. The hormone also increased gaze duration when choosing to reward another monkey, suggesting improved social skills.

Dogs read our intent

Researchers used eye-tracking technology to find that dogs are receptive to human communication in a manner similar to young children, responding more to verbal cues and intentions than just words. Dogs' brains show sensitivity to communicative intent through verbal addressing and eye contact.

American Mathematical Society to award prizes

The American Mathematical Society has awarded several major prizes, including the AMS Steele Prize for Lifetime Achievement and the AMS-SIAM George David Birkhoff Prize in Applied Mathematics. The winners include IVO M. Babuska, Michael Aschbacher, William P. Thurston, and Dana McKenzie, among others.

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.

Focusing on family helps mothers of technology-dependent children function

A recent study by researchers at Case Western Reserve University found that mothers who successfully integrate the care of their technology-dependent child into family life experience improved family functioning and normalcy. Mothers whose children no longer require technologies showed the greatest improvement.

Flatworm flouts fundamental rule of biology

Researchers have discovered that flatworms can regenerate without centrosomes, a cellular structure essential for cell division in all animals. This finding challenges the long-held assumption that centrosomes are crucial for cell division.

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.