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Science News Archive April 2011


Page 8 of 26

USC research shows critical role of placenta in brain development

A groundbreaking study by USC researchers shows the human placenta synthesizes serotonin, providing a new source of this neurotransmitter to the fetal forebrain. This discovery has implications for treating health impacts such as cardiovascular disease and mental illness.

Fruit flies on meth: Study explores whole-body effects of toxic drug

A new study in fruit flies explores the potent effects of methamphetamine on the body, identifying molecular pathways and energy metabolism changes associated with the drug. The research found that sugar metabolism plays a role in reducing toxicity, while disruptions to calcium and iron balance may contribute to dysfunction.

Apple iPhone 17 Pro

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

Adaptive trial designs could accelerate HIV vaccine development

Adaptive clinical trial designs may accelerate HIV vaccine development by rapidly screening out poor candidates and evaluating promising ones. These designs can provide key information on the immunological basis for HIV prevention, helping to advance vaccines through clinical trials more quickly.

Entrepreneurship urged to stimulate the economy

Recent studies support the idea that entrepreneurship can stimulate economic growth, with research on immigrant high-tech start-ups and entrepreneurial decision-making providing avenues for future research. The "Startup America" initiative aims to promote entrepreneurship as a solution to the US economy's recovery process.

Ends of chromosomes protected by stacked, coiled DNA caps

Researchers at the University of Pennsylvania School of Medicine have discovered how telomere caps, made up of G-quadruplexes, protect chromosomes from unraveling. This discovery has implications for studying human aging, Werner syndrome, and Bloom syndrome.

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.

EMBO Gold Medal 2011 awarded to Simon Boulton

Boulton's research highlights include discovering key genes and enzymes involved in DNA repair mechanisms, including RTEL1 and ALC1. His work has led to novel therapeutic approaches for cancer treatment, particularly liver cancer.

Musical activity may improve cognitive aging

A study found that older individuals who played a musical instrument throughout life performed better on cognitive tests than non-musicians. The study suggests that musical activity may serve as a challenging cognitive exercise, making the brain fitter and more capable of accommodating aging challenges.

What's your gut type?

Researchers found three distinct gut types, each associated with unique microbial genetic markers. These markers may help diagnose diseases like colo-rectal cancer and predict treatment outcomes.

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.

Breastfeeding tied to stronger maternal response to baby's cry

A new study from Journal of Child Psychology and Psychiatry found that breastfeeding mothers respond more emotionally to their infants' cries, with greater activity in caregiving brain regions. This is the first paper to examine neurobiological mechanisms linked to breastfeeding and maternal behaviors.

New battery produces electricity where freshwater meets saltwater

Scientists have developed a new 'mixing entropy battery' that generates electricity by alternating freshwater and seawater through the device. The technology has promising potential as an additional renewable energy source, with the ability to also desalinate ocean water for drinking.

Celestron NexStar 8SE Computerized Telescope

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

Childhood music lessons may provide lifelong boost in brain functioning

A study found that childhood musical experience can provide lifelong cognitive benefits, with musicians outperforming non-musicians on tests of visuospatial memory and cognitive flexibility. The research suggests that the duration of musical practice is more important than continued playing at an advanced age.

What's your intestinal bacteria type?

Scientists from the University of Copenhagen have discovered three distinct clusters of intestinal bacteria, known as enterotypes, which affect digestion, energy metabolism, and drug absorption. These enterotypes are independent of nationality, gender, and age, providing a new biological fingerprint for personalized medicine.

Rice wins $1.2 million for heart-valve tissue research

A team of bioengineers at Rice University is developing new materials to grow replacement heart valves using gel-like scaffolds that mimic the complex structure and physical properties of heart-valve tissues. The goal is to create living valves that use a patient's own cells, eliminating tissue rejection.

WSU files for patent on researcher's vaccine technology for chlamydia

A Wayne State University School of Medicine researcher has developed a potential vaccine for Chlamydia, targeting the disease's leading causes of blindness and infertility. The technology demonstrates a successful vaccine effect in an animal model, paving the way for human trials and potentially significant public health benefits.

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.

ESHRE sets standards for cross-border reproductive care

The ESHRE Guide aims to ensure equitable and safe assisted reproduction treatment for local and foreign patients. Key principles include patient-centeredness, timeliness, and effectiveness, with recommendations on translator costs, donor compensation, and recruitment criteria.

Stanford research moves nanomedicine one step closer to reality

Engineered gold nanoparticles have been shown to be non-toxic when administered by two alternative routes in mice, suggesting they may be safe for human use. The particles are designed to detect cancer-lesion sites with high sensitivity and could lead to early disease detection.

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.

How TRIM5 fights HIV

Researchers have discovered TRIM5's mechanism of preventing HIV multiplication, which opens up new prospects for fighting the virus in humans. The protein triggers an immune response and stimulates the production of signal molecules to eliminate infected cells.

New booklet about modern Antarctic science

The new booklet, Antarctica: A Journey of Discovery, provides an introduction to cutting-edge Antarctic research in various subjects. It covers topics such as the food web, ice cores, particle physics, and geology, offering insights into the continent's past and its development.

Physical activity improves walking capacity in Chilean elderly

A recent study published in PLoS Medicine found that a nutritional supplement and physical activity program improved walking capacity in Chilean older adults. The program, known as CENEX, was evaluated for its cost-effectiveness in preventing pneumonia and functional decline in older people.

Fluke 87V Industrial Digital Multimeter

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

Why are we fascinated by death, horror and violence?

Veteran psychologist Jeffrey A. Kottler examines what draws a wide audience to violent entertainment, focusing on normal people who enjoy the forbidden side of destruction and evil. The book explores psychological impact and future trends in society's attitudes toward violence.

Routine rotavirus vaccination in Brazil has reduced diarrhea deaths in children

A Brazilian study shows that widespread rotavirus vaccination in all areas of the country led to significant reductions in diarrhea-related deaths and hospital admissions among young children. The authors conclude that this real-world data supports the use of rotavirus vaccination as an effective measure for controlling severe childhoo...

Study confirms link between breast implants and rare form of cancer

A recent study by the RAND Corporation has confirmed a link between breast implants and anaplastic large cell lymphoma (ALCL), a rare type of immune system cancer. The disease takes a slow course and can be controlled by surgical removal of the implant and surrounding tissue.

A user's guide to the encyclopedia of DNA elements

The ENCODE project has released a comprehensive guide to its DNA elements database, providing a framework for understanding the human genome's function. The dataset enables scientists to associate single nucleotides with diseases and identify new paths for studying noncoding variants.

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.

How do consumers judge quality? It depends on who's making the purchase

A new study found that consumers predict product quality based on attributes when buying for themselves, but rely on price when someone else makes the purchase. The researchers suggest retailers and salespeople should increase psychological distance to influence quality perceptions through high prices.

Researchers discover precisely how thalidomide causes birth defects

New research reveals that thalidomide's toxic effects on embryos result from its breakdown products producing reactive oxygen species, causing DNA damage and birth defects. The study uses a rabbit embryo culture model to demonstrate the link between thalidomide and its hydrolysis products.

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.

Can biochar help suppress greenhouse gases?

A New Zealand study found that adding biochar to soil can decrease nitrous oxide emissions from grazing animals' urine by up to 70%. The incorporation of biochar also alters nitrogen transformations and reduces ammonia formation, leading to lower nitrate concentrations.

LA BioMed study finds 'thirdhand smoke' poses danger to unborn babies' lungs

A recent study published in the American Journal of Physiology found that prenatal exposure to thirdhand smoke can have as serious or even more negative impacts on an infant's lung development than postnatal or childhood exposure. Pregnant women should take precautions to avoid homes and places where thirdhand smoke is likely to be found.

Sugar helping map new ground against deadly bug

A team of researchers at the University of Guelph has developed a potential vaccine against Helicobacter pylori, a common bacterium linked to stomach cancer. The sugar-based antigen caused mice to develop antibodies against the bacteria.

High rates of substance abuse exist among veterans with mental illness

A new study published in The American Journal on Addictions reveals that Veterans who suffer from mental health disorders also have high rates of substance use disorders. Rates of substance use disorders among those with mental illness range from 21-35%, with bipolar disorder and schizophrenia showing the highest rates.

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.

Hundreds of barrier islands newly identified in global survey

A global survey by Duke University researchers has identified 2,149 barrier islands worldwide, significantly increasing the known total from 1,492 previously surveyed without satellite imagery. The new islands measure 20,783 kilometers in length and are found along all continents except Antarctica.

Landmark study reveals breed-specific causes of death in dogs

A University of Georgia study analyzed nearly 75,000 dog deaths over 20 years, identifying breed-specific risks and patterns. The research highlights the importance of anticipating potential health issues to manage wellness, particularly for rare breeds like the Bouvier des Flandres.

Political wins celebrated with porn, says Rutgers-Camden Researcher

A Rutgers-Camden psychologist studied how internet users celebrated political wins with visits to porn sites, finding a significant link between male testosterone levels and vicarious winning. The research used Google trends data and estimated that 90% of porn use is attributed to men.

Taking aim at tumors

Binghamton University researchers are studying the role of tubulin tyrosine ligase (TTL) in cancer cells, which may lead to more effective treatments. The team has developed a new labeling technique to observe TTL's behavior in live cells, potentially allowing clinicians to personalize cancer therapies.

Early product launches: How will consumers respond?

A new study by Torsten Bornemann and Christian Homburg found that consumers who evaluate a product from a distance tend to interpret high prices as reflecting high quality. Consumers who face an immediate purchase focus on the role of price as an indicator of monetary sacrifice.

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.

A cancer marker and treatment in 1?

Researchers at UC San Diego School of Medicine have discovered a potential cancer biomarker in non-human sialic acid antibodies, which can also be used as a treatment to suppress tumor growth. The study found that patients with carcinomas have elevated levels of antibodies to one specific Neu5Gc-containing sugar chain.

Treatment-resistant epilepsy common in idiopathic autism

A new study found that treatment-resistant epilepsy (TRE) is common in idiopathic autism, with early age at seizure onset and delayed global development associated with TRE. Researchers also discovered that patients with TRE had more developmental regression, motor and language delays than those who were seizure-free.

'3-D towers' of information double data storage areal density

A team of French researchers has discovered a method to double the areal density of information by stacking magnetic media in a three-dimensional tower structure. This innovative approach enables greater data storage capacity, overcoming physical limits imposed by current technology.

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.

Improved recovery of motor function after stroke

A two-pronged molecular therapy combining inosine and NEP1-40 restores skilled motor function in a rat model of stroke. The study demonstrates significant nerve growth and functional improvements after treating strokes with this combination therapy.

Decoding cancer patients' genomes is powerful diagnostic tool

Two studies highlight the power of sequencing cancer patients' genomes, identifying novel genetic mutations that guide treatment. Researchers used genome sequencing to diagnose a patient with acute myeloid leukemia and breast cancer, changing her course from stem cell transplant to targeted chemotherapy.

Democrats and Republicans increasingly divided over global warming

A study by Michigan State University researcher Aaron M. McCright found that Democrats generally believe in global warming more now than they did 10 years ago, while Republicans increasingly deny its existence. The gap between these groups has increased over the past decade, hindering meaningful national energy policies.

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.

Gold prices spur six-fold spike in Amazon deforestation

A recent study by Duke University reveals a six-fold increase in Amazon deforestation in Peru, largely driven by artisanal gold mining fueled by record gold prices. The mining activities have led to widespread mercury pollution, contaminating water and soil, and posing risks to human health and the environment.