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Science News Archive February 2011 - Page 7


Page 7 of 25

Texas-bound: Fungus keeps Texas leaf-cutter ants from spreading

A study found that Texas leaf-cutter ants use a fungus as an external digestive system to survive the cold, and the fungus's resistance is based on genetic differences. The ants' ability to manage fungal crops prevents them from spreading farther north than their current range.

SourceRice University·JournalProceedings of the National Academy of Sciences·DateFeb 21, 2011
Fluke 87V Industrial Digital Multimeter

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

Polygamy hurt 19th century Mormon wives' evolutionary fitness

A study of 19th century Mormon polygamy found that more sister-wives led to fewer children per woman, due to a 'Bateman gradient' effect. The practice reduced the strength of sexual selection on males by 58%, bringing their reproductive success closer to women's.

SourceIndiana University·JournalEvolution and Human Behavior·DateFeb 21, 2011

Plankton key to origin of Earth's first breathable atmosphere

Researchers studying the origin of Earth's first breathable atmosphere have found that ancient plankton played a critical role in providing oxygen. This discovery builds on earlier work that showed a reverse-greenhouse effect cooled the oceans, spawning giant plankton blooms and sending oxygen into the atmosphere.

SourceOhio State University·JournalProceedings of the National Academy of Sciences·DateFeb 21, 2011

Who can drive after a stroke? Tests can help decide

Research found that simple tests, such as Road Sign Recognition and Compass tasks, can identify those at risk of failing the on-road driving test. The tests correctly classified 80-85% of unsafe drivers.

SourceAmerican Academy of Neurology·JournalNeurology·DateFeb 21, 2011
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.

Chemical compounds in trees can fight deadly staph infections in humans

Scientists have identified a compound found in Eastern Red Cedar trees that effectively fights methicillin-resistant Staphylococcus aureus (MRSA) bacteria. The compound's discovery could lead to the development of new treatments for deadly MRSA infections, which are resistant to most medications.

SourceUniversity of Missouri-Columbia·DateFeb 21, 2011

Patient education helps earlier detection of skin lesions after kidney transplant

Sharing educational materials with kidney transplant recipients increased their likelihood of performing self-examinations and detecting skin cancers, according to a randomized controlled trial. The intervention also improved knowledge and attitudes towards skin cancer risk, leading to more follow-up appointments with dermatologists.

SourceJAMA Network·JournalArchives of Dermatology·DateFeb 21, 2011
Apple iPhone 17 Pro

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

Scientists to sequence DNA of cystic fibrosis superbug

Researchers at the University of Liverpool identified a particularly virulent strain of Pseudomonas aeruginosa, known as the 'superbug', that causes aggressive infections in cystic fibrosis patients. The team used new DNA sequencing technology to understand how the bacteria adapts to infect patients and develop targeted treatments.

SourceUniversity of Liverpool·DateFeb 21, 2011

Reprogrammed stem cells hit a roadblock

A recent study found that reprogramming stem cells leads to genomic aberrations and genetic mutations similar to those in cancer cells. This raises concerns about the safety and effectiveness of using these cells for regenerative medicine applications.

SourceEcole Polytechnique Fédérale de Lausanne·JournalCell Death and Differentiation·DateFeb 21, 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.

AAAS news briefs from UC Davis

Researchers at UC Davis are presenting innovative solutions to reduce greenhouse gas emissions from the transportation sector, including electrification of vehicles and producing biofuels. The university is also exploring celestial superfluids, which offer potential breakthroughs in materials science and technology.

SourceUniversity of California - Davis·DateFeb 21, 2011

Study shows tobacco retail proximity to schools

Researchers found that tobacco outlets in Buffalo and Niagara Falls are more concentrated around elementary and secondary schools, particularly in lower-income areas. This concentration may exacerbate socioeconomic disparities in tobacco use.

SourceUniversity at Buffalo·DateFeb 21, 2011

Common congenital defect a prickly problem for the kidney

Researchers have identified a new cellular mechanism underlying hydronephrosis by studying kidney development in mice. Genetic mutations in the Hedgehog signaling pathway impaired urine flow from the kidney to the bladder, leading to hydronephrosis.

SourceJCI Journals·JournalJournal of Clinical Investigation·DateFeb 21, 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.

Simple spit and blood tests might detect burnout before it happens

Researchers have developed a simple saliva test and blood analysis to detect early signs of burnout, which can lead to chronic stress, diabetes, cardiovascular disease, and immune problems. The tests may help identify individuals at risk before symptoms develop.

SourceUniversity of Montreal·JournalPsychoneuroendocrinology·DateFeb 21, 2011

Gastric bypass surgery associated with improved health outcomes

A study found that gastric bypass surgery resulted in greater weight loss and improved resolution of type 2 diabetes compared to sleeve gastrectomy and lap-band surgery. Additionally, patients who underwent gastric bypass experienced better quality of life outcomes.

SourceJAMA Network·JournalArchives of Surgery·DateFeb 21, 2011

£7M ($11.3M) for public wheat pre-breeding program announced

The Biotechnology and Biological Sciences Research Council has announced a £7 million grant to increase wheat diversity via comprehensive pre-breeding. This project aims to accelerate genetic improvement of UK wheat, ensuring its sustainability for the benefit of farmers and global food security.

SourceBiotechnology and Biological Sciences Research Council·DateFeb 21, 2011

First harmful algal bloom species genome sequenced

The genome sequencing of Aureococcus anophagefferens reveals its unique advantages over other phytoplankton, including adaptations to low light conditions and toxic metal handling. The research provides insights into the genetic predisposition of this species to thrive in environmentally impacted estuaries.

SourceWoods Hole Oceanographic Institution·JournalProceedings of the National Academy of Sciences·DateFeb 21, 2011

Lesbian moms vulnerable when abused, reluctant to seek help

A study by University of Illinois professors reveals that lesbian moms who experience intimate partner violence are often reluctant to seek help due to fear of losing custody. The researchers found that these women assume people are prejudiced against them and may try to solve the problem alone or hide their abuse from others.

SourceUniversity of Illinois College of Agricultural, Consumer and Environmental Sciences·JournalViolence Against Women·DateFeb 21, 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.

Pollution with antibiotics leads to resistant bacteria

Swedish scientists reveal that pollutants from Indian factories are breeding resistance genes in river bacteria, posing a global risk for untreatable diseases. The study's novel DNA sequencing approach may also aid future hospital research.

SourceUniversity of Gothenburg·JournalPLOS ONE·DateFeb 21, 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.

Shellshock: New report lists 25 most endangered turtle species

The Wildlife Conservation Society has released a report listing 25 most endangered turtle species, many of which are found in Asia and are threatened by illegal hunting for food and the pet trade. The report calls for better enforcement of trade laws, habitat protection, and captive breeding to prevent extinction.

SourceWildlife Conservation Society·DateFeb 21, 2011

JCI table of contents: Feb. 21, 2011

Researchers have discovered a new cellular mechanism underlying hydronephrosis, a common congenital defect in the kidney. They found that the Hedgehog signaling pathway controls the development of cells required for urine flow, and genetic mutations can impair this process. The study also suggests potential therapeutic targets and gene...

SourceJCI Journals·JournalJournal of Clinical Investigation·DateFeb 21, 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.

Climate change affecting food safety

Climate change is affecting the world's food supply by altering temperature patterns and causing extreme weather events like droughts and heavy rains. As a result, crops are being wiped out, leading to higher prices and health issues.

SourceMichigan State University·DateFeb 21, 2011

Fish provide missing piece in the marine sediment jigsaw

Research reveals fish produce fine-grained carbonates through their intestines, which are then excreted and released into the environment. This discovery sheds light on the origins of ancient limestone and chalk deposits.

SourceUniversity of Exeter·JournalProceedings of the National Academy of Sciences·DateFeb 21, 2011

Brown tide culprit sequenced: Genome of the first of algal bloom species

Researchers have sequenced the genome of Aureococcus anophagefferens, a brown tide species that outcompetes other phytoplankton in coastal ecosystems. The genome reveals genes that enable the microalga to thrive in low-light conditions and exploit alternative nutrients.

SourceDOE/Joint Genome Institute·JournalProceedings of the National Academy of Sciences·DateFeb 21, 2011
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.

Protein fuels inflammation in pancreatic and breast tumors

Researchers identify thymic stromal lymphopoietin (TSLP) as a key driver of Th2 inflammation in human breast and pancreatic tumors. TSLP from cancer cells or fibroblasts fuels Th2 inflammation, promoting tumor growth.

SourceRockefeller University Press·JournalJournal of Experimental Medicine·DateFeb 21, 2011

Study shows rapamycin reverses myocardial defects in mouse model of LEOPARD syndrome

A new study reveals that rapamycin can reverse cardiac muscle damage in a mouse model of LEOPARD syndrome, a rare congenital heart disease. The research demonstrates the importance of targeted therapies in managing congenital diseases and offers a potential new treatment option for patients with LEOPARD syndrome.

SourceBeth Israel Deaconess Medical Center·JournalJournal of Clinical Investigation·DateFeb 21, 2011

Sustainability solutions need the power of networks

Researchers are studying how social networks can be leveraged to effectively communicate sustainability science and make informed decisions. By analyzing the structure of social networks, scientists can identify key influencers who can spread information and have a dialogue with them.

SourceMichigan State University·DateFeb 21, 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.

Smallest magnetic field sensor in the world

Researchers from KIT and IPCMS have developed the world's smallest magnetic field sensor using organic molecules. This breakthrough has significant potential for increasing reading speed and data density in hard disks and non-volatile memories.

SourceHelmholtz Association·JournalNature Nanotechnology·DateFeb 21, 2011

Cold winters mean more pollution

Researchers found a strong link between climate and air pollution in Gothenburg, where extreme cold air from Siberia leads to high nitrogen oxide concentrations. The study, published in Atmospheric Environment, shows that air quality standards were exceeded more frequently during negative NAO phases.

SourceUniversity of Gothenburg·JournalAtmospheric Environment·DateFeb 21, 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.

High cholesterol and blood pressure in middle age tied to early memory problems

A recent study found that individuals with high cholesterol and blood pressure in middle age are more likely to experience early cognitive decline and memory problems. The research, which tracked over 4,800 participants for 10 years, showed a significant association between cardiovascular risk factors and poorer cognitive test scores.

SourceAmerican Academy of Neurology·JournalNeurology·DateFeb 21, 2011

Water, water, everywhere... but is it safe to drink?

Canada Research Chair Barbara Sherwood Lollar's research examines the effectiveness of bioremediation technologies in cleaning up groundwater contamination. Her techniques use isotopic signatures to track clean-up progress, providing a critical framework for regulators and practitioners.

SourceNatural Sciences and Engineering Research Council·DateFeb 20, 2011

Floating spores kill malaria mosquito larvae

Researchers have developed a method to disperse pathogenic fungi as a means of preventing malaria spread, using synthetic oil to increase dispersal effectiveness. The fungi cause muscardine disease in mosquito larvae, killing up to 50% more larvae than untreated spores and reducing pupation levels.

SourceBMC (BioMed Central)·JournalParasites & Vectors·DateFeb 20, 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.

Too hot, too cold, just right: Testing the limits of where humans can live

Researchers study island settlements to understand human resilience and capacity for colonization. Mobility, social networks, and knowledge of the local environment helped indigenous people survive in the face of natural disasters and climate change. The findings inform how we adapt to vulnerabilities and rebound from catastrophes.

SourceUniversity of Washington·DateFeb 20, 2011

Better mapping of human settlements to support crisis management operations

The Global Human Settlements Layer (GHSL) uses advanced algorithms to automatically analyze medium resolution satellite data, providing fast and precise mapping of built-up areas worldwide. This enables regular monitoring of human settlement changes and improved damage analysis in disaster-stricken areas.

SourceEuropean Commission Joint Research Centre·DateFeb 20, 2011

Using amphetamines may increase risk of Parkinson's disease

Using amphetamines like Benzedrine and Dexedrine may increase the risk of developing Parkinson's disease, according to a new study. The research, which followed 66,348 participants in northern California, found that those who used these drugs were nearly 60% more likely to develop the condition.

SourceAmerican Academy of Neurology·JournalNeurology·DateFeb 20, 2011

Manipulating molecules for a new breed of electronics

Scientists have successfully controlled the electrical conductance of a single molecule by manipulating its mechanical properties. The research uses a type of molecule called pentaphenylene and demonstrates that changing the tilt angle can increase conductance up to 10 times, thanks to lateral coupling effects.

SourceArizona State University·JournalNature Nanotechnology·DateFeb 20, 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.

How to leave your body

Researchers can manipulate the brain's perception of its own body, allowing for new prosthetic limbs and virtual reality experiences. This technology has significant implications for fields like medicine, psychology, and robotics.

SourceKarolinska Institutet·DateFeb 20, 2011

Trichinosis parasite gets DNA decoded

Researchers at Washington University School of Medicine have decoded the genome of Trichinella spiralis, a parasite that causes trichinosis, identifying unique features and novel genes that could lead to effective treatments. The study has implications for understanding parasitic diseases worldwide.

SourceWashU Medicine·JournalNature Genetics·DateFeb 20, 2011

One Health: From ideas to implementation, rhetoric to reality

The One Health concept aims to integrate surveillance activities across species to monitor and respond to emerging zoonotic diseases. ProMED-mail's global surveillance system has reported over 10,000 animal health issues, highlighting the need for improved interspecies collaboration.

SourceAmerican Society for Microbiology·DateFeb 20, 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.

How many will we be? Are population estimates off the mark?

The actual population trajectory is highly uncertain, with scenarios predicting a peak of 9.5 billion before stabilization or decline. Investments in family planning could reduce the number of people to 8 billion, having a beneficial impact on human welfare and environmental issues.

SourcePopulation Council·DateFeb 20, 2011

Spent nuclear fuel is anything but waste

The US lags behind other countries in nuclear fuel recycling due to unfounded concerns and myths. Reprocessing spent fuel can recover significant energy value and reduce high-level nuclear waste volume.

SourceUniversity of Texas at Austin·DateFeb 20, 2011