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Science News Archive April 2011 - Page 13


Page 13 of 26

Drug potency -- what happens in space?

Pharmaceuticals flown on space missions may have shorter shelf-life due to radiation and vibration, according to a NASA study. The researchers found that exposure to chronic low-dose ionizing radiation and repackaging of solid medications can compromise stability.

SourceSpringer·JournalThe AAPS Journal·DateApr 14, 2011

Temporary memory loss strikes hospitalized seniors

A new Northwestern Medicine study found that hospitalization can lead to temporary memory loss and difficulty understanding discharge instructions in seniors. However, the cognitive impairment typically resolves on its own within a month after hospital discharge.

SourceNorthwestern University·DateApr 14, 2011

New spin on graphene

Researchers at the University of Manchester have discovered a new way to interconnect electron spin and charge in graphene, enabling direct manipulation of electric current using microelectronics. This breakthrough has significant implications for spintronics, with potential applications in sensors, memories, and transistors.

SourceUniversity of Manchester·JournalScience·DateApr 14, 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.

Antiplatelets: 1 person, 1 dose?

A new trial shows that standard-dose clopidogrel is as effective as double the dose for preventing cardiovascular events in patients with high on-treatment platelet reactivity. Researchers argue that a personalized approach to antiplatelet therapy may be more beneficial, warranting further investigation.

SourceMontreal Heart Institute·JournalJAMA·DateApr 14, 2011

Climate change from black carbon depends on altitude

New research from Carnegie Institution scientists found that black carbon aerosols have a greater effect on surface warming when emitted near the land and ocean surface. However, as altitude increases, surface warming decreases, while cooling occurs in the stratosphere.

SourceCarnegie Institution for Science·JournalClimate Dynamics·DateApr 14, 2011

Hopkins team discovers how DNA changes

Researchers identified a step-by-step process involving TET1 and Apobec1 that converts methylated cytosine into hydroxymethylated cytosine, indicating a potential unified mechanism for DNA methylation status change. The discovery has implications for understanding diseases associated with epigenetic abnormality.

SourceJohns Hopkins Medicine·JournalCell·DateApr 14, 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.

Filtering out pesticides with E. coli

Researchers in China have developed a genetically modified form of E. coli that can extract toxic pesticides like parathion and methyl parathion from the air with high efficiency. The biofilter system has shown average removal efficiencies of up to 95.2% for parathion and 98.6% for methyl parathion.

SourceInderscience Publishers·JournalInternational Journal of Environment and Pollution·DateApr 14, 2011

Experimental drug inhibits cell signaling pathway and slows ovarian cancer growth

An experimental drug called NVP-BEZ235 blocks a crucial cancer cell signaling pathway, slowing ovarian cancer growth and increasing survival in an ovarian cancer mouse model. The drug also re-sensitizes resistant cancer cells to platinum chemotherapy, offering new hope for fighting drug resistance.

SourceUniversity of California - Los Angeles Health Sciences·JournalClinical Cancer Research·DateApr 14, 2011

Warning to breastfeeding mothers

A recent study found that breastfeeding mothers are perceived as less competent than non-breasting mothers, with biases detected among both men and women. This prejudice may deter some women from breastfeeding, highlighting the need for greater support to overcome negative experiences.

SourceSAGE·JournalPersonality and Social Psychology Bulletin·DateApr 14, 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.

Women more likely to self-medicate

A research study by the Rey Juan Carlos University in Madrid found that women are more likely to self-medicate than men in Spain. The study, published in Pharmacoepidemiology and Drug Safety, revealed that 20.17% of Spaniards use medication without a medical prescription, with women accounting for 16.93% of those cases.

SourceSpanish Foundation for Science and Technology·JournalPharmacoepidemiology and Drug Safety·DateApr 14, 2011

Sharpened focus: Improving the numbers, utility of medical imaging

A group of radiologists and biochemists have developed a new approach to improve the accuracy and reliability of medical imaging. By creating standardized benchmarks and calibration objects, they aim to provide hard numbers that can be used to justify treatments and accelerate cancer treatment approvals.

SourceNational Institute of Standards and Technology (NIST)·JournalRadiology·DateApr 14, 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.

People who overuse credit believe products have unrealistic properties

A University of Missouri researcher found that people who overuse credit believe products have unrealistic properties, leading to unfulfilled expectations. The study recommends revising financial literacy programs to help consumers recognize the limitations of material purchases.

SourceUniversity of Missouri-Columbia·JournalJournal of Public Policy & Marketing·DateApr 14, 2011

Loch fossils show life harnessed sun and sex early on

Scientists discovered remarkably preserved remains of ancient organisms in Scottish lochs that lived a billion years ago. These fossils show complex algal cells with nucleus, mitochondria, and chloroplasts, indicating early evolution of photosynthesis and sexual reproduction.

SourceUniversity of Sheffield·JournalNature·DateApr 13, 2011

HIV rate in SF could be cut sharply with expanded treatment, study predicts

A new study by the University of California, San Francisco suggests that treating HIV-infected adults as soon as they are diagnosed can significantly reduce the rate of new HIV infections among men who have sex with men in San Francisco. This approach is expected to cut new infections by almost 60% over five years.

SourceUniversity of California - San Francisco·JournalClinical Infectious Diseases·DateApr 13, 2011

Aerobic exercise may improve nonalcoholic fatty liver disease

Researchers found that walking for one hour a day improved insulin sensitivity, increased adiponectin levels, and reduced oxidative damage in obese individuals with prediabetes. This exercise regimen may help slow the progression of nonalcoholic fatty liver disease.

SourceFederation of American Societies for Experimental Biology·DateApr 13, 2011
Apple iPhone 17 Pro

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

Ceramic coatings may protect jet engines from volcanic ash

Researchers have discovered a new class of ceramic coatings that could offer jet engines special protection against volcanic ash damage. The coatings were tested and found to resist damage caused by ash deposits, with one coating offering sufficient protection against small amounts of ash ingested by the engine over time.

SourceOhio State University·JournalAdvanced Materials·DateApr 13, 2011

AGU journal highlights -- April 13, 2011

Researchers found that solar activity during the Little Ice Age may have contributed to the period's cooling, suggesting factors other than low sunspot activity played a role. Glacial dust storms are a significant source of iron to the Gulf of Alaska, impacting phytoplankton growth and ecosystems.

SourceAmerican Geophysical Union·JournalGeophysical Research Letters·DateApr 13, 2011

Low doses of penta-brominated diphenyl ether flame retardants alter gene expression

Researchers found that low doses of penta-BDEs altered gene expression in reproductive organs and thyroid hormones in female rat offspring exposed in utero and via maternal milk. Osteopontin gene expression was significantly increased, which may have long-term implications for human health.

SourceSociety for Experimental Biology and Medicine·JournalExperimental Biology and Medicine·DateApr 13, 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.

Difference in ICU care between the US and UK reflect extremes of bed availability

A study comparing US and UK ICU admissions found that UK patients were sicker upon admission, while US patients required more continuing care after discharge. Hospital mortality rates varied between the countries due to differences in healthcare systems and discharge practices.

SourceAmerican Thoracic Society·JournalAmerican Journal of Respiratory and Critical Care Medicine·DateApr 13, 2011

Challenges in stemming the spread of resistant bacteria in intensive care

A new research study found that a commonly used strategy to reduce the spread of resistant bacteria in hospital ICUs had no significant effect. The study, which used active surveillance and expanded use of barrier precautions, did identify a large subgroup of patients not previously known to be colonized with MRSA or VRE.

SourceMayo Clinic·JournalNew England Journal of Medicine·DateApr 13, 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.

Family largely ignored in Canada's response to youth homelessness

A York University report highlights the need for a greater emphasis on prevention, family reconnection, and rapid re-housing efforts in Canada's approach to youth homelessness. The report cites successful programs in Australia and the UK that have helped young people reconnect with their families or move into independent housing.

SourceYork University·DateApr 13, 2011

Improvements in embryonic preimplantation genetic screening techniques

A new short Comparative Genomic Hybridisation (CGH) method enables comprehensive analysis of all chromosomes and detection of chromosomal anomalies. The technique, developed by Mariona Rius, has shown an implantation rate of 60%, successfully resulting in a pregnancy for a woman with two chromosomal translocations.

SourceUniversitat Autonoma de Barcelona·JournalHuman Reproduction·DateApr 13, 2011

Brain starts shrinking nearly a decade before Alzheimer's appears

A new study found that areas of the brain affected by Alzheimer's disease may start shrinking up to a decade before dementia is diagnosed. The researchers used MRI scans to measure brain size in people with no memory problems and followed them for years to see who developed the disease.

SourceAmerican Academy of Neurology·JournalNeurology·DateApr 13, 2011

More interventions at delivery not linked to healthier newborns

Research published at University of Rochester Medical Center found that high induction and primary C-section rates in low-risk pregnant women have no impact on newborn health. The study's findings question the increasing trend of interventions at delivery in the US, suggesting that 'more is not always better'.

SourceUniversity of Rochester Medical Center·JournalThe Journal of Maternal-Fetal & Neonatal Medicine·DateApr 13, 2011
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.

An advance for a newborn vaccine approach

A new vaccine approach using an adjuvant to stimulate the immune system shows promise in a study of Gambian infants, highlighting potential for single-shot protection at birth and reducing immunizations needed. The study's findings could have major wins for global health.

SourceBoston Children's Hospital·JournalPLOS ONE·DateApr 13, 2011

Two kinds of Webb telescope mirrors arrive at NASA Goddard

Two unique types of mirrors, Primary and Secondary EDUs, have arrived at NASA's Goddard Space Flight Center. The mirrors will work together to observe distant galaxies and unexplored planets. The Primary mirror is composed of 18 hexagonal segments, while the Secondary mirror directs light from the Primary mirror to Webb's instruments.

SourceNASA/Goddard Space Flight Center·DateApr 13, 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.

Death -- not just life -- important link in marine ecosystems

Researchers found that copepod carcasses play a crucial role in understanding oceanic food webs. Non-predatory mortality accounted for over 10% of all copepod deaths, providing insights into the fate of these tiny crustaceans.

SourceU.S. National Science Foundation·JournalMarine Ecology Progress Series·DateApr 13, 2011

Children victims of most eye injuries from aerosols

A study by Brown University researchers found that children were the victims in more than half of emergency room visits for eye injuries related to aerosol cans. The youngest children, ages 0 to 4, accounted for an estimated 2,830 emergency room visits during the study timeframe.

SourceBrown University·JournalAmerican Journal of Ophthalmology·DateApr 13, 2011

Experimental treatment for COPD in development

Researchers at Johns Hopkins Bloomberg School of Public Health developed a non-steroid based strategy to improve lung's innate immune defense against bacterial infection in COPD patients. Sulforaphane, an ingredient present in broccoli, was used to enhance the Nrf2 pathway in the lungs.

SourceJohns Hopkins Bloomberg School of Public Health·JournalScience Translational Medicine·DateApr 13, 2011

Preparing for a cool life -- seasonal changes in lipid composition

Researchers found that alpine marmots increase n-6 polyunsaturated fatty acid concentrations in their cell membranes before hibernation, preparing for low temperatures. This seasonal change is reversed upon hibernation termination and appears to be controlled by an endogenous clock.

SourceUniversity of Veterinary Medicine -- Vienna·JournalPLOS ONE·DateApr 13, 2011
Meta Quest 3 512GB

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

Obese individuals can suffer from social anxiety disorder due to weight alone

A new study from Rhode Island Hospital researchers shows that obese individuals with social anxiety related only to their weight may experience anxiety as severe as those with social anxiety disorder. The findings suggest that excluding obesity-related social anxiety from SAD diagnosis may hinder identification of the disorder.

SourceLifespan·JournalDepression and Anxiety·DateApr 13, 2011

Queen's researchers pioneer needle-free test for premature babies

Researchers at Queen's University Belfast have pioneered a needle-free test for medicines in premature babies, reducing trauma and improving accuracy. The new approach uses blood spots obtained from heel-pricks, allowing for more precise dosage calculations and better treatment outcomes.

SourceQueen's University Belfast·JournalPEDIATRICS·DateApr 13, 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.

Patients' own cells yield new insights into the biology of schizophrenia

Researchers created patient-derived iPSCs, which were then differentiated into neurons to study schizophrenia. The study found that these neurons connected less frequently with each other and had misregulated gene expression profiles, but Loxapine restored connectivity. The findings provide a new model for understanding the disease mec...

SourceSalk Institute·JournalNature·DateApr 13, 2011

UCSF neurosurgeons test new device for placing brain implants

A new MRI device guides surgeons during electrode implantation, potentially cutting surgery time in half and making the procedure faster and more comfortable for patients. The device was developed by a team of UCSF neurosurgeons and radiologists to improve deep brain stimulation outcomes for Parkinson's disease patients.

SourceUniversity of California - San Francisco·JournalAmerican Antiquity·DateApr 13, 2011

Programming regret for Google

Researchers at Tel Aviv University have developed an algorithm that enables computers to anticipate the future and make more efficient decisions. The algorithm, funded by Google, aims to minimize 'regret' in computer decision-making by analyzing variables and adapting to situations.

SourceAmerican Friends of Tel Aviv University·DateApr 13, 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.

New drug may reduce seizures in epilepsy

Perampanel, a new drug, has shown promise in reducing seizures in people with hard-to-control epilepsy. The study involved 387 participants who took either the 12mg or 8mg dose of perampanel and reported a significant reduction in seizure frequency compared to those taking a placebo.

SourceAmerican Academy of Neurology·DateApr 13, 2011

Researchers advance toward hybrid spintronic computer chips

Hybrid spintronic computer chips are being developed using a combination of inorganic and organic materials. The new technology could lead to computers that require less power and produce less heat, enabling instant on and flexibility. This breakthrough promises significant advances in information processing.

SourceOhio State University·JournalPhysical Review Letters·DateApr 13, 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.

Are your values right or left? The answer is more literal than you think

A study published in Psychological Science found that people's values and judgments are linked to their motor skills, with right-handers favoring the right side. The research used brain-injured patients and healthy volunteers to investigate how much time it takes for individuals to switch their preferences.

SourceAssociation for Psychological Science·JournalPsychological Science·DateApr 13, 2011

Switching to solar

The book highlights the crucial role of policy mechanisms, such as the feed-in tariff, in promoting widespread solar energy deployment. In California, a new law aims to make solar affordable at the municipal level.

SourcePrometheus Books·DateApr 13, 2011