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Science News for January 19, 2009


Research breakthrough targets genetic diseases

Researchers have discovered a plant model that mimics human DNA patterns, allowing for the study of genetic diseases such as Huntington's and Fragile X syndrome over multiple generations. This breakthrough could pave the way for better understanding and potential treatments for these debilitating conditions.

SourceResearch Australia·JournalScience·DateJan 19, 2009

Our microbes, ourselves

Researchers found significant differences in microbial composition among obese patients, gastric bypass surgery subjects, and normal-weight individuals. The study suggests that the gut microbiome plays a key role in energy harvesting, making people more susceptible to obesity.

SourceArizona State University·JournalProceedings of the National Academy of Sciences·DateJan 19, 2009

Hospital at-home programs provide similar patient outcomes

A systematic review and meta-analysis found hospital at-home programs produce similar health outcomes to inpatient care for select patients, including those with chronic pulmonary disease and stroke. Patient satisfaction is also high for treatment at home.

SourceCanadian Medical Association Journal·JournalCanadian Medical Association Journal·DateJan 19, 2009

Language driven by culture, not biology

Researchers modelled gene evolution alongside language development, concluding that genetic adaptation to language is unlikely due to rapid cultural change. The study suggests that human language has evolved primarily through cultural conventions rather than biological adaptation.

SourceUniversity College London·JournalProceedings of the National Academy of Sciences·DateJan 19, 2009
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.

New, higher-yielding rice plant could ease threat of hunger for poor

A new, higher-yielding rice plant is being developed through a global consortium of scientists, which aims to increase yields by 50% while reducing fertilizer and water usage. The project has received a $11 million grant from the Bill & Melinda Gates Foundation and has the potential to benefit billions of poor people worldwide.

SourceInternational Rice Research Institute·DateJan 19, 2009

JCI online early table of contents: Jan. 19, 2009

A recent study by Oregon Health and Science University and the University of Colorado School of Medicine found that fetal heath is affected by mother's diet, with high-fat diets increasing the risk of developing NAFLD and obesity-related diseases in offspring. Researchers suggest a healthy maternal diet is crucial for preventing these ...

SourceJCI Journals·JournalJournal of Clinical Investigation·DateJan 19, 2009

Fetal health affected by mother's diet

A study found that a mother's high-fat diet during pregnancy can increase the risk of obesity-related diseases in her offspring. Reverting to a low-fat diet after a high-fat diet period reduced these risks.

SourceJCI Journals·JournalJournal of Clinical Investigation·DateJan 19, 2009
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.

New sperm shaker to improve IVF success

Scientists have developed a method to test sperm quality before IVF treatment, increasing conception chances. The new process uses Raman spectroscopy to identify DNA damage in sperm, providing a non-destructive 'quality score'.

SourceEngineering and Physical Sciences Research Council·DateJan 19, 2009

New criteria for measuring tumor size and progression will help ease workloads in clinical trials

The revised RECIST (Response Evaluation Criteria in Solid Tumours) guidelines aim to ease workloads in clinical trials by reducing the number of lesions to be assessed and providing new guidance on tumor burden measurement. The updated criteria also refine disease progression definitions and incorporate modern imaging techniques.

SourceECCO-the European CanCer Organisation·JournalEuropean Journal of Cancer·DateJan 19, 2009

Kidney transplant survival can be long-term for people with HIV

A Johns Hopkins study found that HIV-positive kidney transplant recipients can achieve one-year survival rates comparable to those without HIV, provided key risk factors for transplant failure are recognized and controlled. The study's results reflect the impact of newer antiretroviral therapies on reducing HIV-related deaths.

SourceJohns Hopkins Medicine·JournalArchives of Surgery·DateJan 19, 2009

Nile Delta fishery grows dramatically thanks to run-off of sewage, fertilizers

The Nile Delta fishery has grown significantly due to the influx of nutrients from fertilizers and sewage discharges, with 60-100% of production supported by these sources. This unexpected expansion raises questions about the value of anthropogenic nutrient inputs to ecosystems.

SourceUniversity of Rhode Island·JournalProceedings of the National Academy of Sciences·DateJan 19, 2009

Scientists: Earthquakes, El Ninos fatal to earliest civilization in Americas

The Supe people's advanced stone pyramid temples and maritime farming community were devastated by a series of earthquakes and flooding caused by El Nino events, rendering their fertile fields and bays uninhabitable. The region's collapse serves as a cautionary tale for modern times, highlighting the risks of environmental vulnerability.

SourceUniversity of Florida·JournalProceedings of the National Academy of Sciences·DateJan 19, 2009
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.

Food choices and location influence California sea otter exposure to disease

Research reveals that California sea otters living in coastal areas with limited resources are more susceptible to diseases caused by parasites. The study found that diet diversity among individual otters can lead to higher infection rates, highlighting the importance of habitat quality for maintaining healthy populations.

SourceU.S. Geological Survey·JournalProceedings of the National Academy of Sciences·DateJan 19, 2009

MRSA's 'weak point' visualized by scientists

Researchers have visualized the molecular structure of the LtaS enzyme, a key player in MRSA's growth and spread. The team hopes to develop a new antibiotic targeting this enzyme to combat the superbug.

SourceImperial College London·JournalProceedings of the National Academy of Sciences·DateJan 19, 2009

The more promiscuous the female, the speedier the sperm

Promiscuous female African cichlids stimulate males to produce larger and speedier sperm, a strategy to outcompete rival suitors for reproduction. Researchers used computer simulations to show that this evolutionary adaptation occurs after species transition to more promiscuous mating behaviors.

SourceMcMaster University·JournalProceedings of the National Academy of Sciences·DateJan 19, 2009

Obama and the opportunity to eliminate nuclear weapons

Physicians around the world are urging US President Barack Obama to prioritize nuclear abolition as a matter of global health and security. The current nuclear arsenal poses an existential threat to human life and the environment.

SourceCanadian Medical Association Journal·JournalCanadian Medical Association Journal·DateJan 19, 2009
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.

Genetic testing not cost-effective in guiding initial dosing of common blood thinner

New analysis by University of Cincinnati researchers found that genetic testing to guide initial dosing of warfarin may not be worth the costs for typical patients. However, it could be beneficial for those at high risk of major bleeding. The study suggests that testing should be done in-house and at lower cost without delays.

SourceUniversity of Cincinnati·JournalAnnals of Internal Medicine·DateJan 19, 2009

How Toxoplasma gondii gets noticed

Researchers study how Toxoplasma gondii infects mice and finds that infected cells fuse with endoplasmic reticulum to present parasitic peptides. This process, called cross-presentation, helps the parasite evade immune detection.

SourceRockefeller University Press·JournalJournal of Experimental Medicine·DateJan 19, 2009

Space mission for worms

Researchers are sending worms to the International Space Station to study muscle atrophy in zero gravity. The goal is to understand why astronauts experience dramatic muscle loss and potentially develop new treatments for muscle wasting diseases.

SourceUniversity of Nottingham·DateJan 19, 2009
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.

MRSA head and neck infections increase among children

Rates of antibiotic-resistant head and neck infections increased significantly in pediatric patients nationwide between 2001 and 2006. MRSA rates rose from 11.8 percent to 28.1 percent during this period, with the highest proportion found in ear infections.

SourceJAMA Network·JournalArchives of Otolaryngology - Head and Neck Surgery·DateJan 19, 2009

Baffling the body into accepting transplants

Researcher Stacey Walters finds that boosting BAFF levels in mice can alter their immune systems to accept tissue transplants. Increased B cells stimulate T regulatory cells, controlling killer cells and preventing rejection.

SourceResearch Australia·JournalThe Journal of Immunology·DateJan 19, 2009

Motor skill learning may be enhanced by mild brain stimulation

Researchers found that mild electrical current to a motor control area of the brain improved motor task performance significantly. The technique has potential for enhancing rehabilitation for individuals with brain injuries.

SourceNIH/National Institute of Neurological Disorders and Stroke·JournalProceedings of the National Academy of Sciences·DateJan 19, 2009

Universal infant hepatitis B immunization recommended

Global epidemiological studies suggest one-third of chronic hepatitis B infections are acquired during infancy and early childhood. Universal infant immunization is offered in most countries (98%) and has reduced incidence rates in provinces that adopted the program.

SourceCanadian Medical Association Journal·JournalCanadian Medical Association Journal·DateJan 19, 2009
Meta Quest 3 512GB

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

New imaging method lets scientists 'see' cell molecules more clearly

Researchers have developed a new technique called liquid STEM that enables the imaging of individual molecules in biological cells, with improved resolution and speed compared to existing methods. This innovation has potential applications in energy science and the development of molecular probes.

SourceVanderbilt University Medical Center·JournalProceedings of the National Academy of Sciences·DateJan 19, 2009

Socially active and not easily stressed? You may not develop dementia

A study of 506 older adults found that those who were socially active, outgoing, and calm had a 50% lower risk of developing dementia compared to those who were isolated and prone to distress. Lifestyle factors can be modified to reduce dementia risk, offering hopeful news for those nearing retirement age.

SourceAmerican Academy of Neurology·JournalNeurology·DateJan 19, 2009

Virtual communities may provide valuable support for psoriasis patients

Psoriasis affects 0.6-4.8% of the world's population, impairing financial status and well-being. Online support groups provide valuable resources, anonymity, and improved quality of life for patients. The study found that 49.5% of participants perceived improvements in psoriasis severity since joining an online community.

SourceJAMA Network·JournalArchives of Dermatology·DateJan 19, 2009

Scientific sub makes deep-sea discoveries

A four-week expedition to explore the deep ocean south-west of Tasmania has revealed new species of animals, including a bizarre carnivorous sea squirt and giant sponges. The survey also found vast fields of fossil corals dated to over 10,000 years old, providing ancient climate data for models of regional and global climate change.

SourceCSIRO Australia·DateJan 19, 2009
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.

Penn study: Breast cancer survivors call for more 'survivorship care' from primary care physicians

A new study found that breast cancer survivors are unsatisfied with the post-cancer care they receive from their primary care physicians, highlighting the need for more coordinated care. Patients advocate for educational interventions and specialized clinics to address late effects of treatments and prevent disease recurrences.

SourceUniversity of Pennsylvania School of Medicine·JournalJournal of Clinical Oncology·DateJan 19, 2009

Bleeding hearts revealed with new scan

Researchers capture images of bleeding inside heart muscle after heart attack using MRI scans, finding correlation between bleeding and extent of heart damage. Patients with larger heart attacks show more significant bleeding and poorer recovery chances.

SourceImperial College London·JournalRadiology·DateJan 19, 2009

'Warrior gene' predicts aggressive behavior after provocation

Researchers discover that individuals with low-activity MAOA gene display higher levels of aggression in response to provocation, particularly when faced with significant financial loss. The study suggests genetic influences on aggression and punishment behavior, questioning the altruistic punisher theory.

SourceBrown University·JournalProceedings of the National Academy of Sciences·DateJan 19, 2009

Infra red spotlights crystal growth

Engineers at the University of Leeds developed a technique using infra-red spectroscopy to analyze chemical processes, enabling real-time monitoring of supersaturation levels required for crystallization. This can help predict optimum crystal structure conditions and improve pharmaceutical manufacturing efficiency.

SourceUniversity of Leeds·JournalCrystal Growth & Design·DateJan 19, 2009

Major agricultural initiative to benefit millions of South Asian farmers

The Cereal Systems Initiative for South Asia (CSISA) aims to increase grain production by 5 million tons annually, benefiting six million poor rural households. The project will focus on sustainable cereal production in India, Pakistan, Bangladesh, and Nepal through the development of new crop varieties and technologies.

SourceInternational Rice Research Institute·DateJan 19, 2009
Apple iPhone 17 Pro

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

Survey: Scientists agree human-induced global warming is real

A survey of 3,146 earth scientists found consensus on the reality of climate change, with climatologists showing strongest agreement. Petroleum geologists and meteorologists were among the biggest doubters, but most still acknowledge human involvement in global warming.

SourceUniversity of Illinois Chicago·JournalEos·DateJan 19, 2009

Embargoed news from Annals of Internal Medicine

Bariatric surgery rapidly improves insulin action, prompting adjustments to diabetic regimens. Genetic testing for heart disease is questioned as a reliable predictor of cardiovascular events, with traditional risk factors proving sufficient. Researchers advocate for increased clinical vigilance in methadone patients to reduce sudden c...

SourceAmerican College of Physicians·JournalAnnals of Internal Medicine·DateJan 19, 2009

Food advertisements in your magazine: How healthy are they?

Researchers at Newcastle University discovered that food adverts in popular UK magazines often feature sugary and salty products, despite promoting a healthier lifestyle. The study analyzed 30 widely-read weekly magazines and found that nearly every one contained unhealthy food options.

SourceNewcastle University·JournalEuropean Journal of Public Health·DateJan 19, 2009

Infidelity produces faster sperm

A study by Uppsala University researchers found that females' promiscuity leads to males producing faster and larger sperms. The competition among sperms influences various characteristics, including size and speed.

SourceUppsala University·JournalProceedings of the National Academy of Sciences·DateJan 19, 2009

Study compares 2 nonsurgical treatments for reflux disease

Two non-surgical treatments for gastroesophageal reflux disease (GERD) have been found to be effective in reducing medication use and improving symptoms, according to a recent study. Radiofrequency therapy appears effective for reducing heartburn and cough, while full-thickness plication may be beneficial for patients with regurgitation.

SourceJAMA Network·JournalArchives of Surgery·DateJan 19, 2009
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.

Collaborative learning across multiple institutions

A collaborative research course taught at one university led to a global collaboration among faculty members from three universities, resulting in significant increases in communication skills and subject matter knowledge. Students reported improved understanding of how communication fits into collaborative problem-solving and anticipa...

SourceAmerican Society of Agronomy·JournalJournal of Natural Resources and Life Sciences Education·DateJan 19, 2009

'Smart' fridges stay cool by talking to each other

Researchers at CSIRO Australia have developed smart fridges that can negotiate the most energy-efficient way to keep food cold, reducing electricity consumption and greenhouse gas emissions. The fridges work as a network, sharing energy provided by renewable sources like solar panels or wind turbines.

SourceCSIRO Australia·DateJan 19, 2009

Victims of intimate partner violence display distinct patterns of facial injury

Victims of intimate partner violence display unique patterns of facial injuries, including zygomatic complex fractures and orbital blow-out fractures. Medical professionals can recognize these patients through universal screening and examination, facilitating appropriate medical and social intervention.

SourceJAMA Network·JournalArchives of Facial Plastic Surgery·DateJan 19, 2009

Predicting politics: Professors model prediction markets

A Northwestern University team created a model of how prices fluctuate in political prediction markets, revealing that partisan feeling can significantly impact trading. The researchers found that traders' emotions played a crucial role in the market's behavior, especially during the 2000 presidential election. By understanding these d...

SourceNorthwestern University·JournalProceedings of the National Academy of Sciences·DateJan 19, 2009
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.