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Science News Archive 2013 - Page 314


Page 314 of 352

Indian plant could play key role in death of cancer cells

Researchers have identified an Indian plant compound, gedunin, that attacks a co-chaperone of Hsp90 and leads to the inactivation of the Hsp90 machine, killing cancer cells. This finding may open new ways for targeting Hsp90 using established inhibitors.

SourceMedical College of Georgia at Augusta University·JournalJournal of Biological Chemistry·DateFeb 14, 2013

Technique that removes additional toxins prolongs dialysis patients' lives

A technique that removes additional toxins during dialysis decreased kidney failure patients' risk of dying from any cause by 30% over three years, with lower risks of heart-related causes and infections. The study's findings suggest OL-HDF may indeed prolong kidney failure patients' lives compared to conventional hemodialysis.

SourceAmerican Society of Nephrology·JournalJournal of the American Society of Nephrology·DateFeb 14, 2013
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.

Are billboards driving us to distraction?

Researchers found that emotionally charged words on billboards can provoke an emotional response, distracting drivers and decreasing traveling speed. Positive connotations sped up drivers' responses, while negative words led to drifting and veering from the lane.

SourceUniversity of Alberta·JournalAccident Analysis & Prevention·DateFeb 14, 2013

Study shows limits on brain's ability to perceive multifeatured objects

Research shows that when shapes are repeated in multiple locations with mixed color-shape associations, they are hard to perceive. This finding expands on previous work on feature integration in visual perception and provides new insights into how the brain encodes objects.

SourceAssociation for Psychological Science·JournalPsychological Science·DateFeb 14, 2013

Researchers discover breakthrough in ovarian cancer

A recent study published in The Lancet Oncology reveals that patients with low-grade serous carcinoma of the ovary or peritoneum can experience tumor stabilization or shrinkage after taking a regular dose of selumetinib. This breakthrough discovery offers new possibilities for treating previously chemoresistant tumors.

SourceSt. Joseph's Hospital and Medical Center·JournalThe Lancet Oncology·DateFeb 14, 2013

Physical activity linked to lower rates of depression in bariatric surgery patients

Adults undergoing bariatric surgery who are more physically active are less likely to have depressive symptoms and treatment for depression or anxiety. Moderate-intensity physical activity, such as one hour a week or 4,750 steps a day, was associated with lower odds of these conditions.

SourceUniversity of Pittsburgh Schools of the Health Sciences·JournalJournal of Psychosomatic Research·DateFeb 14, 2013
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.

What green algae are up to in the dark

Researchers at Ruhr-University Bochum have discovered a metabolic pathway for hydrogen production in green algae under stress conditions, even in the dark. This discovery provides new insights into the production of hydrogen gas and its potential application in sustainable energy solutions.

SourceRuhr-University Bochum·JournalJournal of Biological Chemistry·DateFeb 14, 2013

Low-protein diet slows Alzheimer's in mice

Mice with Alzheimer's-like pathologies showed improved memory and slower disease progression on a low-protein diet supplemented with specific amino acids. The study found reduced levels of IGF-1 and increased blockade of its effects, suggesting potential non-invasive treatments.

SourceUniversity of Southern California·JournalAging Cell·DateFeb 14, 2013
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.

Risk of leukemia after cancer chemotherapy persists

A study published in Blood found that certain chemotherapies increase a patient's risk of developing therapy-related acute myeloid leukemia (tAML), a rare but frequently fatal condition. The risk varies by type of cancer and year of diagnosis, with some patients facing higher risks more than 10 years after their initial diagnosis.

SourceAmerican Society of Hematology·JournalBlood·DateFeb 14, 2013

Stay cool and live longer?

Researchers discovered a genetic program that promotes longevity in roundworms at cold temperatures and found it exists in humans. The study links calcium signaling to aging for the first time, suggesting exposure to cold air or stimulation of this genetic program may promote mammalian longevity.

SourceUniversity of Michigan·JournalCell·DateFeb 14, 2013

First animal model of recent human evolution

A team of researchers created an animal model of recent human evolution, revealing a single mutation that produced several traits common in East Asian peoples. The study found that the mutation arose around 30,000 years ago in central China and is linked to thicker hair, denser sweat glands, and other skin features.

SourceHarvard Medical School·JournalCell·DateFeb 14, 2013
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.

2 Cell studies reveal genetic variation driving human evolution

Researchers used an animal model and whole-genome sequence data to identify hundreds of gene variants that potentially helped humans adapt to changing environmental conditions. The findings provide a road map for understanding human biological history and modern-day variability, including traits like resistance to infectious diseases.

SourceCell Press·JournalCell·DateFeb 14, 2013
Apple iPhone 17 Pro

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

Long noncoding RNAs control development of fat cells

Researchers at Whitehead Institute have identified long noncoding RNAs as essential regulators of white fat cell development, which can lead to obesity. The study found that knocking down specific lncRNAs reduced the formation of lipid droplets in fat cells.

SourceWhitehead Institute for Biomedical Research·JournalProceedings of the National Academy of Sciences·DateFeb 13, 2013

NASA scientists part of Arctic Sea ice study

Researchers found a 36% autumn and 9% winter decline in Arctic sea ice volume over the last decade. The study builds on previous studies using submarine and NASA satellite data, verifying compatibility with CryoSat-2 satellite measurements.

SourceNASA/Goddard Space Flight Center·JournalGeophysical Research Letters·DateFeb 13, 2013

Gro Harlem Brundtland recieves Huntington Environmental prize.

The Woods Hole Research Center has awarded the Lawrence S. Huntington Environmental Prize to Dr. Gro Harlem Brundtland, a renowned leader in sustainability and climate change. Dr. Brundtland's vision of sustainability has inspired generations of scientists and policymakers.

SourceWoodwell Climate Research Center·DateFeb 13, 2013

Cure in sight for kissing bug's bite

Researchers at Vanderbilt University Medical Center have discovered a potential cure for both acute and chronic forms of Chagas disease in mice using the small molecule VNI. The treatment achieved 100% survival without toxic side effects.

SourceVanderbilt University Medical Center·JournalThe Journal of Infectious Diseases·DateFeb 13, 2013
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.

Valentine's Day tales of romance and chemistry

A study found that nearly half of online Viagra samples contained only 30-50% active pharmaceutical ingredient. Meanwhile, bedbugs produce a foul odor during mating attempts to deter unwanted advances.

SourceAmerican Chemical Society·JournalChemical & Engineering News·DateFeb 13, 2013

Happily married couples consider themselves healthier, expert says

Research suggests that happy marriages improve both partners' spirits and well-being, while lower stress levels. Health professionals are advised to consider patients' personal relationships when designing health promotion programs or treatment plans.

SourceUniversity of Missouri-Columbia·JournalJournal of Family Psychology·DateFeb 13, 2013

Opera's poisons and potions connect students with chemistry

This article from ACS' Journal of Chemical Education explores the real chemistry behind famous opera plots, including poisonous snake bites and deadly venoms. The author highlights several examples of operatic themes involving chemistry that can be used as a teaching tool for students and the general public.

SourceAmerican Chemical Society·JournalJournal of Chemical Education·DateFeb 13, 2013
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.

Light-emitting bioprobe fits in a single cell

Researchers at Stanford have developed a light-emitting probe that can be injected into individual cells without harm. The device uses photonic cavities to amplify light and detect specific biomolecules, paving the way for real-time sensing and monitoring of cellular biology.

SourceStanford University School of Engineering·JournalNano Letters·DateFeb 13, 2013

Advance promises to expand biological control of crop pests

A new discovery allows for expanded use of a mainstay biological pest control method, the sterile insect technique (SIT), which avoids health and environmental concerns. The approach involves mass release of radiation-sterilized insects that mate but produce no offspring, reducing pest populations.

SourceAmerican Chemical Society·JournalACS Synthetic Biology·DateFeb 13, 2013

A neural basis for benefits of meditation

Researchers propose that mindfulness practitioners gain enhanced control over sensory cortical alpha rhythms, enabling optimal filtering of sensory information and regulation of negative thoughts. This control is linked to the practice of mindful awareness of breath and body sensations.

SourceBrown University·JournalFrontiers in Human Neuroscience·DateFeb 13, 2013
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.

European satellite confirms UW numbers: Arctic Ocean is on thin ice

A European Space Agency satellite confirms a University of Washington analysis that the Arctic has lost more than a third of its summer sea-ice volume since 2012. The Arctic is now shrinking and thinning, with summer ice volume estimated to be one-fifth of what it was in 1980.

SourceUniversity of Washington·JournalGeophysical Research Letters·DateFeb 13, 2013

Preventing obesity transmission during pregnancy

A recent publication by ILSI Europe identifies key contributors to child obesity, including maternal diet, gestational weight gain, and metabolic perturbations. Combining data from clinical studies could lead to more effective nutritional advice for pregnant women.

SourceILSI Europe·JournalAnnals of Nutrition and Metabolism·DateFeb 13, 2013

Magnetic shielding of ion beam thruster walls

A research team at Caltech's Jet Propulsion Laboratory has found a way to effectively control erosion of Hall thruster walls by shaping the engine's magnetic field. By minimizing the effect of plasma on the magnetic field lines, they demonstrated 100 to 1,000 times less wall erosion when using magnetic shielding.

SourceAmerican Institute of Physics·JournalApplied Physics Letters·DateFeb 13, 2013

Key molecule suppresses growth of cancerous liver tumors, Mayo study finds

Researchers found that IQGAP1, a molecule controlling cell shape and movement, can suppress the growth of liver tumors when active in surrounding cells. The study provides new insight into cancer metastasis and points to potential therapeutic targets for preventing or treating liver metastases.

SourceMayo Clinic·JournalJournal of Clinical Investigation·DateFeb 13, 2013
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.

Engineers show feasibility of superfast materials

Engineers at the University of Utah have shown that it is feasible to create organic topological insulators, which can conduct electricity on their edges but act as an insulator inside. This discovery could enable faster-than-light information transfer in quantum computers and spintronics devices.

SourceUniversity of Utah·JournalNature Communications·DateFeb 13, 2013

Kinect teleport for remote medicine

A new system using Kinect technology and Azure connectivity can replace expensive telemedicine systems, reducing hospital-acquired infections and patient transport costs. The system uses low-bandwidth connections and can be used in areas with unreliable internet, making it a powerful tool for remote communities.

SourceInderscience Publishers·JournalInternational Journal of Electronic Finance·DateFeb 13, 2013

Genetic study pursues elusive goal: How many humpbacks existed before whaling?

A genetic analysis reveals that North Atlantic humpback whales once existed in numbers of over 100,000 individuals, with an estimated range of 45,000 to 235,000. The study's findings provide a more accurate estimate than previous catch data and have significant implications for determining the recovery threshold of the species.

SourceWildlife Conservation Society·JournalConservation Genetics·DateFeb 13, 2013
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.

Scientists discover how animals taste, and avoid, high salt concentrations

Researchers at Columbia University Irving Medical Center have identified two opposing behaviors triggered by salt concentrations in mammals, allowing them to avoid high-salt diets. The discovery may lead to the development of taste modulators to control appetite and reduce the effects of excessive sodium intake.

SourceColumbia University Irving Medical Center·JournalNature·DateFeb 13, 2013

UNC researchers discover gene that suppresses herpesviruses

Researchers at the University of North Carolina have identified a family of human genes known as Tousled-like kinases (TLKs) that play a key role in suppressing and activating herpesviruses. The discovery suggests that suppressing TLK enzymes may help prevent viral replication and reduce the risk of virus-associated cancers.

SourceUniversity of North Carolina Health Care·JournalCell Host & Microbe·DateFeb 13, 2013
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.

A cooler way to protect silicon surfaces

Researchers at MIT have developed a new passivation process that can protect silicon surfaces at room temperature, reducing energy costs and enabling the production of more efficient solar cells. This breakthrough has the potential to replace traditional silicon nitride coatings, which are currently expensive and finicky.

SourceMassachusetts Institute of Technology·JournalAdvanced Materials·DateFeb 13, 2013
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.

Robots with lift

Soft robots designed by Harvard researchers can leap up to a foot in the air using small explosions of methane and oxygen. This fast-acting system could aid in search and rescue missions. The robots' jumping ability is made possible by a simple valve system and the brief, high-energy explosion.

SourceHarvard University·JournalAngewandte Chemie·DateFeb 13, 2013

Cellular renewal process may underlie benefits of omega fatty acids

Researchers found that omega-6 fatty acids stimulate autophagy in both C. elegans roundworms and human cells, leading to increased lifespan and improved immune response. This discovery suggests that balanced intake of omega nutrients may benefit human health.

SourceMassachusetts General Hospital·JournalGenes & Development·DateFeb 13, 2013
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.

Study suggests infant deaths can be prevented

Researchers found that blocking a complement protein C5 reduces placental blood vessel growth limitations, allowing for improved fetal survival and growth. The study provides hope for preventing adverse birth outcomes worldwide.

SourceUniversity Health Network·JournalCell Host & Microbe·DateFeb 13, 2013

Vanderbilt study reveals clues to childhood respiratory virus

The Vanderbilt-led research found that human metapneumovirus is the second leading cause of severe bronchiolitis in young children, affecting more children over age 1 than RSV. The study provides a clearer picture of how this virus impacts children and highlights the need for vaccines to prevent it.

SourceVanderbilt University Medical Center·JournalNew England Journal of Medicine·DateFeb 13, 2013

Facial structure may predict endorsement of racial prejudice

A new study found that men with a wider face-to-height ratio are more likely to express racist remarks and be less concerned about social pressures. This association was not linked to explicit prejudice, but rather to social dominance.

SourceAssociation for Psychological Science·JournalPsychological Science·DateFeb 13, 2013