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Science News for September 28, 2011


Correcting sickle cell disease with stem cells

Scientists at Johns Hopkins Medicine have corrected the genetic alteration causing sickle cell disease by using a patient's own stem cells. The team found four working iPS cell lines containing correct copies of the hemoglobin gene and successfully converted them into immature red blood cells.

SourceJohns Hopkins Medicine·JournalBlood·DateSep 28, 2011
Apple iPhone 17 Pro

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

How normal cells become brain cancers

Researchers at UCSF Brain Tumor Research Center discovered a protein called NG2 that controls the switch from asymmetric to symmetric cell division in normal cells. This abnormal cell division pattern is associated with oligodendroglioma brain tumors, which may respond to chemotherapy but often recur in resistant forms.

SourceUniversity of California - San Francisco·JournalCancer Cell·DateSep 28, 2011
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.

MVA-B Spanish HIV vaccine shows 90 percent immune response in humans

The MVA-B vaccine has been shown to induce an 90% immune response in humans against Human's immunodeficiency virus (HIV), with 85% of volunteers maintaining this response for at least one year. The vaccine works by training the immune system to recognize and respond to HIV particles and infected cells.

SourceSpanish National Research Council (CSIC)·JournalJournal of Virology·DateSep 28, 2011

Alcohol-related behavior changes -- blame your immune system

A new study found that blocking Toll-like receptors reduces the effects of alcohol on the brain, which could lead to treatments for alcohol dependence and acute overdoses. This shift in understanding may help identify individuals at risk of brain damage after long-term drinking.

SourceWiley·JournalBritish Journal of Pharmacology·DateSep 28, 2011

End-of-life discussions do not affect survival rates, study shows

A new study published in Journal of Hospital Medicine found that discussing end-of-life care with physicians does not affect survival rates. Patients who have advance directives in their medical records also have similar survival rates as those without these discussions and documents.

SourceWiley·JournalJournal of Hospital Medicine·DateSep 28, 2011
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.

Vital protein complex and therapeutic possibilities revealed

Three international teams describe in unprecedented detail the workings of G protein-coupled receptors (GPCRs), a major molecular target for drugs. GPCRs are essential to human life, involved in almost every physiological function, and malfunctions have been linked to dozens of diseases.

SourceUniversity of California - San Diego·JournalNature·DateSep 28, 2011

Popular colorectal cancer drug may cause permanent nerve damage

Researchers at Johns Hopkins Medicine found that oxaliplatin, a widely used chemotherapy drug for colorectal cancer, causes permanent nerve damage in some patients. A new study suggests using simple skin biopsies to track nerve cell degeneration and develop new treatments to prevent or slow the damage.

SourceJohns Hopkins Medicine·JournalNeurology·DateSep 28, 2011

Hide-and-seek: Altered HIV can't evade immune system

Researchers at Johns Hopkins have modified HIV to trigger an immune response, a major hurdle in vaccine development. The altered virus activates the adaptive immune system's response against HIV, negating its immunosuppressive properties.

SourceJohns Hopkins Medicine·JournalBlood·DateSep 28, 2011
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.

Barrow scientists identify new stem cell activity in human brain

Researchers identified a new pathway of stem cell activity in the subventricular zone of the human brain, which targets the prefrontal cortex in newborns. This discovery challenges previous reports that suggested neural stem cells remain active into adulthood.

SourceSt. Joseph's Hospital and Medical Center·JournalNature·DateSep 28, 2011

fMRIs show that dyslexia isn't a matter of IQ

A recent brain-imaging study challenges the historical understanding of dyslexia by showing that children with reading difficulties have the same brain difficulty in processing sounds regardless of their IQ. This finding could change the way educators help poor readers, as all can benefit from the same interventions.

SourceAssociation for Psychological Science·JournalPsychological Science·DateSep 28, 2011

Low zinc and copper levels might cause spontaneous abortion

A study by the University of Granada found that low plasma levels of copper and zinc are associated with an increased risk of spontaneous abortion. The research involved 265 pregnant women, with 132 experiencing miscarriage, and revealed significant differences in maternal plasma concentrations of these essential minerals.

SourceUniversity of Granada·JournalObstetrics and Gynecology·DateSep 28, 2011

Study shows heifers don't have to be pigs at the feed bunk

A two-year study by Montana State University researchers found that heifers can safely reduce their feed intake during the seven months between weaning and breeding. This results in cost savings of $21 per animal, with industry-wide savings being significant, especially in drought areas.

SourceMontana State University·JournalBritish Journal Of Nutrition·DateSep 28, 2011
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.

Medical education needs more of a public health and prevention focus

The supplement highlights the importance of integrating public health and prevention principles into medical education. Experts emphasize the need for physicians with a better appreciation for these issues to address complex public health challenges, such as rising chronic disease burdens and persistent health disparities.

SourceElsevier Health Sciences·JournalAmerican Journal of Preventive Medicine·DateSep 28, 2011

Even high-but-normal blood pressure elevates stroke risk

Research from the University of California - San Diego School of Medicine found that people with prehypertension have a 55% higher risk of experiencing a future stroke than those without. The study analyzed 12 prospective cohort studies involving over 518,000 participants and found that even high-but-normal blood pressure elevates stro...

SourceUniversity of California - San Diego·JournalNeurology·DateSep 28, 2011
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.

Study investigates why adolescents respond differently to peer influence

A Northwestern University study found that adolescents can be insulated from the negative influence of their peers by having characteristics respected by friends, such as close friendships with members of the opposite sex. Insulation also occurs if individuals have something their friends need, like a car.

SourceAmerican Sociological Association·JournalSocial Psychology Quarterly·DateSep 28, 2011
Davis Instruments Vantage Pro2 Weather Station

Davis Instruments Vantage Pro2 Weather Station offers research-grade local weather data for networked stations, campuses, and community observatories.

Saving heart attack victims with computer science

A new study has identified subtle markers of heart damage hidden in hours of EKG recordings, allowing doctors to identify high-risk heart attack patients. The researchers found that these anomalies can predict patient mortality within 12 months, enabling targeted treatments to save lives.

SourceUniversity of Michigan·JournalScience Translational Medicine·DateSep 28, 2011

Millesecond memory

Researchers at NTNU's Kavli Institute for Systems Neuroscience discovered that memory is divided into discrete packets, with each packet lasting around 125 milliseconds. The brain switches between these packets rapidly, allowing it to 'flip' between different maps of location and experience.

SourceNorwegian University of Science and Technology·JournalNature·DateSep 28, 2011

Managing future forests for water

Researchers used long-term data from Coweeta Hydrological Laboratory to examine the feasibility of managing forests for water supply. The analysis revealed significant increases in temperature and extreme wet and dry years, with conversion from hardwoods to pines decreasing streamflow.

SourceUSDA Forest Service ‑ Southern Research Station·JournalEcological Applications·DateSep 28, 2011
Sky-Watcher EQ6-R Pro Equatorial Mount

Sky-Watcher EQ6-R Pro Equatorial Mount provides precise tracking capacity for deep-sky imaging rigs during long astrophotography sessions.

The mark of the beast: tradition or stress?

A recent study by Christine Aurich's group at the University of Veterinary Medicine, Vienna found that short-term branding stress levels are comparable to microchip implants in foals. However, branding causes more prolonged tissue damage and alterations in body temperature, leading to increased welfare concerns.

SourceUniversity of Veterinary Medicine -- Vienna·JournalThe Veterinary Journal·DateSep 28, 2011

Stanford brain imaging study shows physiological basis of dyslexia

Researchers used fMRI to compare brain activation patterns of poor readers with and without low IQs. Both groups showed reduced activations in left inferior parietal lobule and fusiform gyrus, indicating impaired phonological processing. This study provides biological evidence against using IQ to diagnose dyslexia.

SourceStanford Medicine·JournalPsychological Science·DateSep 28, 2011

Prescribed stimulant use for ADHD continues to rise steadily

The study found a slow but steady increase in prescribed stimulant use among children and adolescents with ADHD, with higher rates among boys and white children. However, the rate of growth has slowed in recent years, suggesting that more children are being diagnosed and treated for ADHD.

SourceNIH/National Institute of Mental Health·JournalAmerican Journal of Psychiatry·DateSep 28, 2011

Easily embarrassed? Study finds people will trust you more

A recent study by researchers at the University of California, Berkeley, suggests that embarrassment can be a positive trait, fostering trust and cooperation in everyday life. Subjects who were more easily embarrassed reported higher levels of monogamy and generosity, indicating a stronger tendency to affiliate with others.

SourceUniversity of California - Berkeley·JournalJournal of Personality and Social Psychology·DateSep 28, 2011
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.

JoVE grants developing countries access to experimental videos

The Journal of Visualized Experiments (JoVE) is now offering free subscriptions to developing countries through the HINARI initiative. This move aims to address information inequality by providing access to visual content, including over 1,300 video-protocols on experimental approaches in various fields.

SourceThe Journal of Visualized Experiments·DateSep 28, 2011

OGI and MaRS Innovation invest in peptide therapeutics

Dr. Andrei Yudin's innovative process makes linear peptides circular, increasing their stability and ability to enter cells effectively. A library of macrocycles will be built to test properties and identify potential therapeutic compounds.

SourceOntario Genomics Institute·DateSep 28, 2011

New research findings impact Seattle, Sierra Nevada

Researchers have developed a new model to evaluate seismic wave velocities at shallow depth in the Seattle Basin, offering refined seismic hazard assessments. The study also exposes two faults in the eastern Sierra Nevada, providing new details about active faulting in the area.

SourceSeismological Society of America·JournalBulletin of the Seismological Society of America·DateSep 28, 2011
Anker Laptop Power Bank 25,000mAh (Triple 100W USB-C)

Anker Laptop Power Bank 25,000mAh (Triple 100W USB-C) keeps Macs, tablets, and meters powered during extended observing runs and remote surveys.

NIST polishes method for creating tiny diamond machines

A new method developed at NIST enables the creation of unique features in diamond, allowing for precise cuts and potentially leading to improvements in nanometrology. The method could also improve MEMS devices used in cell phones, gyroscopes, and medical implants, making them more durable and efficient.

SourceNational Institute of Standards and Technology (NIST)·JournalDiamond and Related Materials·DateSep 28, 2011

Potential treatment for 'pink eye' epidemic

Researchers have discovered a potential new treatment for EKC, a highly infectious eye disease affecting millions annually in the US. A molecular wipe targeting viruses responsible for EKC could relieve symptoms, speed up healing and reduce transmission risk.

SourceAmerican Chemical Society·JournalJournal of Medicinal Chemistry·DateSep 28, 2011

Video shows tool use by a fish

A fish has been observed using a tool to crack open a shell, similar to previous reports of tool use by other fish species such as wrasse and blackspot tuskfish.

SourceUniversity of California - Santa Cruz·JournalCoral Reefs·DateSep 28, 2011

Who's the best leader: the saint or the scrooge?

A new study explains why leaders are often perceived as strong and dominant, despite their generosity. In non-competitive contexts, generous individuals are admired and respected, but in times of competition, they are seen as weak and submissive.

SourceNorthwestern University·JournalJournal of Personality and Social Psychology·DateSep 28, 2011
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.

Adolescents particularly susceptible to drinking habits of romantic partner's friends

A recent study published in the American Sociological Review found that adolescents are more susceptible to drinking habits of their romantic partner's friends than their own friends or significant others. This influence can be either positive or negative, depending on whether the partner's friends drink heavily.

SourceAmerican Sociological Association·JournalAmerican Sociological Review·DateSep 28, 2011

Resisting peer pressure

A new Northwestern University study found that adolescents in mixed friend groups were insulated from the influence of peers who were delinquent or low-academic achievers. Neighborhood violence and territorial boundaries constrained their friendship choices.

SourceNorthwestern University·JournalSocial Psychology Quarterly·DateSep 28, 2011

Prevention of bedsores in long-term care homes cost-effective, study shows

Researchers found that pressure reduction foam mattresses and foam cleansers for incontinence care are cost-effective alternatives to standard mattresses and soap and water. The study estimated average savings of $115 and $179 per resident, respectively, with clinical benefits confirmed through further research.

SourceUniversity of Toronto·JournalArchives of Internal Medicine·DateSep 28, 2011
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.

Major HIV prevention trial in women to drop oral tenofovir arm

The VOICE trial will continue testing the safety and effectiveness of oral Truvada and tenofovir gel, while discontinuing daily use of oral tenofovir tablets. The trial enrolled 5,029 women across three countries to evaluate the efficacy of ARV-based approaches in preventing HIV transmission.

SourceMicrobicide Trials Network·DateSep 28, 2011
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.

UC Davis advocates for new approaches to biomedical research

Researchers advocate for interdisciplinary collaboration and partnerships between academia and industry to improve population health and address health inequities. They also propose training grants to bridge the 'valley of retirement' as experienced researchers retire.

SourceUniversity of California - Davis Health·JournalScience Translational Medicine·DateSep 28, 2011

Global conservation priorities for marine turtles

Researchers have developed a new method to evaluate spatially and biologically distinct groups of marine turtles, identifying 11 out of 58 worldwide turtle regions as most at risk. The study highlights the need for targeted conservation efforts for these threatened populations.

SourcePLOS·JournalPLOS ONE·DateSep 28, 2011
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.

Homegrown solution for physician shortage described in Academic Medicine

The University of Missouri's Rural Track Pipeline Program has produced nearly 65% of its graduates staying in Missouri, with over 57% practicing in rural areas. The program offers multiple opportunities for medical students to train and live in rural communities, addressing the national physician shortage in rural areas.

SourceUniversity of Missouri School of Medicine·JournalAcademic Medicine·DateSep 28, 2011

Genetic variant linked to blocked heart arteries in patients with diabetes

Researchers at Washington University School of Medicine have identified a genetic variant associated with the severity of coronary artery disease in patients with type 2 diabetes. The variant, located in the TLL1 gene, was found to correlate strongly with the extent of coronary disease, even better than traditional clinical factors.

SourceWashU Medicine·JournalCirculation·DateSep 28, 2011

Control gene for developmental timing discovered

University of Alberta researchers identified a key regulator controlling the speed of development in fruit flies. Blocking this regulator sped up development, leading to faster maturation. The study defines a novel mechanism for regulating steroid hormone pulses, crucial for human health and disease.

SourceUniversity of Alberta·JournalPLOS Biology·DateSep 28, 2011
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.

Children with autism benefit from early, intensive therapy

Research suggests that early, intensive therapy is most effective in improving social-communication skills for children with autism. A study of over 1,000 children found that those who received more comprehensive treatment achieved better outcomes.

SourceUniversity of Missouri-Columbia·JournalResearch in Autism Spectrum Disorders·DateSep 28, 2011

Students 'jump into action' for better health

A new study from the University of Missouri shows Jump Into Action (JIA), a school-based physical activity program, is effective in changing unhealthy youth behaviors. JIA participants reported increased knowledge of health behaviors and adopted many of these behaviors, leading to improved nutrition and reduced screen time.

SourceUniversity of Missouri-Columbia·JournalJournal of Extension·DateSep 28, 2011

Wildlife Conservation Society study uncovers a predictable sequence toward coral reef collapse

A study by the Wildlife Conservation Society identified 8 changes that occur on coral reefs before they collapse due to overfishing. Researchers found a 'window' of maximum sustainable yield between 300-600 kilograms per hectare, but when fish stocks drop below this threshold, reef degradation accelerates.

SourceWildlife Conservation Society·JournalProceedings of the National Academy of Sciences·DateSep 28, 2011

NIH modifies 'VOICE' HIV prevention study in women

The VOICE study will discontinue evaluating oral tenofovir due to lack of effectiveness, while continuing to investigate tenofovir gel and PrEP. This decision was made after an interim review found no safety concerns with oral tenofovir.

SourceNIH/National Institute of Allergy and Infectious Diseases·DateSep 28, 2011

Additives meant to protect vitamin C actually cause more harm

Researchers found that anti-caking agents in powdered vitamin C products can accelerate degradation, even protecting it from moisture. This is due to the chemical properties of these agents, which can absorb or repel water and lead to further reactions that lower the nutrient's stability.

SourcePurdue University·JournalJournal of Food Science·DateSep 28, 2011
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.

New University of Houston research focuses on teenage mind

Researchers at the University of Houston have found a connection between borderline personality disorder and hypermentalizing in adolescents, which can lead to emotional regulation challenges. The study's findings suggest that early intervention and treatment can improve strategies for managing BPD symptoms.

SourceUniversity of Houston·JournalJournal of the American Academy of Child & Adolescent Psychiatry·DateSep 28, 2011

NW biofuels coming of age with $80 million in separate projects led by UW, WSU

The University of Washington and Washington State University are leading two separate $40 million grants to develop a regional biofuels industry in the Pacific Northwest. The projects aim to produce cellulosic fuels from woody biomass, creating jobs and stimulating economic growth. Successful demonstration projects will lay the foundat...

SourceUniversity of Washington·DateSep 28, 2011
Celestron NexStar 8SE Computerized Telescope

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

Drug companies must report clinical trial results, even when they won't lead to a product

Clinical trials should be reported even when product development is terminated to benefit the research community and prevent negative drug developments from being unpublished. This ensures greater patient safety, improves treatment research strategies, and optimizes resource allocations for promising new therapeutics.

SourceUniversity of California - Davis Health·JournalScience Translational Medicine·DateSep 28, 2011

Light from galaxy clusters confirm theory of relativity

Astrophysicists have measured how light is affected by gravity on its way out of galaxy clusters, confirming the general theory of relativity. The observations show that the gravitational redshift of light is proportionally offset in relation to the galaxy cluster's gravity.

SourceUniversity of Copenhagen·JournalNature·DateSep 28, 2011
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.