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Science News Archive January 2008


Page 2 of 17

Brown joins alliance to increase robotics education and research

Brown University has joined the Advancing Robotics Technology for Societal Impact (ARTSI) Alliance to develop outreach programs and provide mentoring opportunities for African-American students in computer science and robotics. The program aims to create pathways for minority students to pursue graduate degrees in computer science.

Blue-eyed humans have a single, common ancestor

A team at the University of Copenhagen discovered that people with blue eyes have a single common ancestor due to a genetic mutation in the OCA2 gene. This mutation resulted in reduced melanin production in the iris, effectively 'diluting' brown eyes to blue. Brown-eyed individuals exhibit more individual variation in their DNA.

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.

Study paves way for development of macular degeneration cures

Researchers at Cleveland Clinic Lerner College of Medicine developed an AMD animal model using oxidative chemicals, which closely represents the disease in people. This breakthrough could lead to better treatments and potentially a cure for age-related macular degeneration, affecting millions of Americans.

Where in the world

Global positioning systems technology can be used to study how children develop spatial awareness and orient themselves in the real world. The study found that children aged three years old could use environmental landmarks to guide their search, improving performance with larger test areas and different colored buckets.

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.

Study reveals improved prediction of prostrate cancer

A new model predicts prostate cancer progression based on Gleason score and biomarker assessments, providing valuable information for patient management and treatment planning. The research has potential benefits for patients diagnosed with early prostate cancer.

New adhesive mimics gecko toe hairs

Researchers developed a new synthetic adhesive that mimics gecko toe hairs, allowing for directional adhesion on smooth surfaces. The adhesive is made from hard plastic microfibers that become stronger with use and can detach without residue.

Brown mathematician David Mumford wins prestigious Wolf Prize

David Mumford is recognized for his contributions to algebraic surfaces, geometric invariant theory, and the modern algebraic theory of moduli of curves and theta functions. His work has fundamentally changed algebraic geometry, laying the foundations for string theory in physics.

Apple iPhone 17 Pro

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

Newborn brain cells modulate learning and memory

Researchers at the Salk Institute found that newborn brain cells play a crucial role in spatial memory and learning. Genetically engineered mice with shut-down neurogenesis showed learning and memory deficits, but not complete loss of function.

Researchers investigate links between prostate, cadmium, zinc

A recent study published in The Prostate found that men with low zinc levels and high cadmium exposure had a 22% higher PSA level, indicating a higher risk of prostate cancer. Conversely, those with high zinc intake showed little evidence of an association between cadmium and PSA levels.

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.

Scientists achieve major genetics breakthrough

Researchers identified duplicated genes HSD17B10 and HUWE1 as the trigger for intellectual disability. The study found that these genes produce excess protein, leading to mental retardation in individuals with X chromosome-linked mutations.

DNA is blueprint, contractor and construction worker for new structures

Researchers at Northwestern University have developed a technique using DNA to assemble crystalline structures out of gold nanoparticles, resulting in materials with unique properties. The method allows for the creation of 'designer' materials with specific applications in fields like therapeutics and electronics.

Increased hurricane activity linked to sea surface warming

A 0.5°C increase in sea surface temperature is associated with a 40% increase in hurricane activity and frequency in the tropical North Atlantic region. The research, conducted by University College London scientists, quantifies the link between sea surface warming and hurricane activity for the first time.

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.

Revolution in understanding of ion channel regulation

A study at Rush University Medical Center suggests that bubbles may regulate ion channel opening and closing, providing a vital piece of the molecular puzzle. This discovery has significant implications for treating diseases linked to malfunctioning ion channels, such as heart disease and cystic fibrosis.

DNA technique yields 3-D crystalline organization of nanoparticles

Scientists at Brookhaven National Laboratory successfully created 3D crystalline structures of nanoparticles using DNA, opening doors for new applications. The method relies on the attractive forces between complementary DNA strands to guide nanoparticle interactions and produce ordered crystals.

Paired earthquakes separated in time and space

Researchers discovered a rare doublet earthquake event near Japan, with two large quakes occurring over 60 days apart. The second quake was triggered by bending of the Pacific plate, shedding light on seismic dynamics and potential hazards in regions far from tectonic plate boundaries.

GoPro HERO13 Black

GoPro HERO13 Black records stabilized 5.3K video for instrument deployments, field notes, and outreach, even in harsh weather and underwater conditions.

Anemia treatment may be a double-edged sword

A mouse study reveals that erythropoietin keeps blood vessels alive and growing in the eye, but administering it at the wrong time may worsen diseases. The hormone's effects depend on timing, with early administration potentially slowing disease progression and late administration accelerating it.

Physicists explain dance marathon of wispy feature in roiling fluids

Researchers used laboratory experiments and calculations to understand how thin tendrils of magma can persist in roiling fluids, forming hotspot volcanism. The study applies to both small-scale and large-scale geological features, providing insights into Earth's interior dynamics.

Study analyzes best approach for treating abdominal aortic aneurysms

Researchers analyzed data from over 45,000 Medicare beneficiaries treated for AAA and found that EVAR has a lower mortality rate than open repair, with a significant benefit for elderly patients. While EVAR may require more reinterventions, the risks are balanced by late complications of open repair.

A taxing issue: How human T-lymphotropic virus

A new mechanism of HTLV-1-induced leukemia involves the reduction of histone protein levels, promoting genomic instability and cell division. This discovery suggests that Tax, a key viral protein, uncouples histone gene expression from cell cycle progression.

Celestron NexStar 8SE Computerized Telescope

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

More religious women less likely to get an abortion

A new study published in Social Science Quarterly reveals that religious women are less likely to obtain abortions compared to secular women. This is because religious women tend to lead more sexually conservative lifestyles, which reduces their likelihood of becoming pregnant before marriage and seeking an abortion.

Molecules may help predict survival in liver cancer

A study published in Clinical Cancer Research found that patients with poor disease-free survival had lower levels of specific microRNAs compared to those with better survival rates. The researchers hope that restoring these microRNAs could lead to improved treatment options for liver cancer patients.

Intensive insulin therapy protects kidneys in critically ill patients

A new study by American Society of Nephrology confirms that intensive insulin therapy (IIT) protects kidneys in critically ill patients, reducing the risk of acute kidney injury (AKI) and death. IIT was found to be more effective in preventing AKI after surgery compared to medical ICU patients.

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.

Cummings School receives Rockefeller Foundation grant

The Cummings School of Veterinary Medicine at Tufts University has received a $200,000 Rockefeller Foundation grant to assess veterinary health services in Indonesia and enhance the country's capacity to prevent and control infectious diseases shared by animals and people. The grant will support the expansion of a nationwide community-...

Urinary dysfunction troubles men who undergo prostate removal

Men with prostate cancer who undergo radical prostatectomy experience significant urinary and sexual dysfunction, including incontinence and depression. Health-care practitioners must educate patients about these side effects to improve quality of life.

Iowa State researcher studies how enzymes break down cellulose

Researchers are studying how enzymes break down cellulose, a tough plant-based material. This study aims to develop a basic understanding of the mechanism and activity of these enzymes, which could lead to more efficient and economical production of cellulosic ethanol.

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.

Gene variant linked to moderated symptoms of beta-thalassemia

Researchers discovered a genetic variant in the BCL11A gene associated with higher levels of fetal hemoglobin and milder beta-thalassemia symptoms. This finding has implications for developing targeted therapies to alleviate hemoglobin deficiencies in people with beta-thalassemia and sickle cell anemia.

Gene predicts heart attack response and cardiac damage

A protein called macrophage migration inhibitory factor (MIF) has been found to activate AMPK, a key regulator of cellular energy balance, protecting the heart from injury during a heart attack. MIF may help identify individuals at higher risk for cardiac damage during a heart attack based on their genetic characteristics.

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.

Agriculture is changing the chemistry of the Mississippi River

Researchers found that farming practices, such as liming and changes in tile drainage, are responsible for the majority of increased water and carbon dioxide in the Mississippi River. The study's findings highlight the significant impact of agricultural activities on the river's chemistry and ecosystem.

Smithsonian study: Sediment prediction tools off the mark

A recent Smithsonian study reveals that widely used sediment prediction tools are failing to accurately forecast sediment delivery to the Chesapeake Bay. The researchers suggest a shift in focus towards understanding what happens near streams and during high-level stream events.

Media highlights in the January issues of Biophysical Journal

The January issues of Biophysical Journal feature studies on the ultra-fast biological motion of Vorticella, which contracts like a spring, and sequence-dependent variations in nucleosome stability. Researchers also explore the biomechanical perspective of vesicle transport regulation in cells.

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.

Nanomedicine research for prostate cancer supported by $5 million gift

A multidisciplinary team led by Dr. Neil Bander will develop a novel nanomedicine for prostate cancer, targeting specific sites with high PSMA presence. The collaboration aims to create synergies in research and development, potentially reducing side effects and increasing effectiveness.

Gene discovery made easier with powerful new networking technique

A powerful new gene-networking model has been developed to identify disease-causing genes, allowing for faster and more efficient discovery. The technique was tested in nematode worms, where it identified new genes involved in tumor development and extended life span by 55 percent.

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.

Common drug-releasing coronary stents appear to have similar clinical outcomes

A study comparing sirolimus-eluting and paclitaxel-eluting stents found no significant differences in heart attack or cardiac death rates among patients undergoing percutaneous coronary interventions. The use of drug-eluting stents may be safe for the general population, with low rates of serious adverse events at 18 months of follow-up.

Severe asthma may be a different form of the disease

A study found that severe asthma is characterized by air trapping and incomplete reversibility with bronchodilator treatment. This suggests a distinct physiological difference between severe and non-severe asthma, potentially leading to new treatment approaches.

DNA (driver of nicotine addiction)

A genetic study of 14,000 people found two genes, alpha 3 and alpha 5 nicotinic receptor subunits, to be associated with an increased risk of heavy smoking. The implicated DNA variants can be used to predict ability to quit using existing medications, potentially leading to more efficient treatment.

Potential cause of age differences in stimulant response identified

Researchers found that brain-derived neurotrophic factor (BDNF) and its receptor TrkB play a crucial role in age-specific responses to stimulants. The study suggests that BDNF/TrkB might be used as a target for new treatments for childhood neuropsychiatric disorders or addiction.

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.

New research explains link between smoking and SIDS

Researchers at McMaster University found that exposure to nicotine in the womb impairs a baby's ability to respond to oxygen deprivation after birth. This impairment can lead to an increased risk of Sudden Infant Death Syndrome (SIDS).

NIDA research reveals subconscious signals can trigger drug craving

Researchers used fMRI to show that cocaine-related images stimulate activity in the limbic system, a brain network involved in emotion and reward, even when subjects are unaware they've seen anything. The study suggests new drug treatment strategies by targeting the brain's sensitivity to conditioned drug cues.