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Science News for June 11, 2009


Obese women with PCOS can lose weight with a doctor's help

A new study found that obese women with polycystic ovary syndrome (PCOS) can lose a substantial amount of weight with simple weight-loss advice from a physician and regular follow-up. This weight loss was clinically significant, with 43.2% of patients losing at least 5% of their body weight.

SourceThe Endocrine Society·DateJun 11, 2009

LSUHSC research finds single gene controls growth of some cancers

A single gene, EBNA1, plays a crucial role in the activation of EBV genes responsible for indiscriminate tumor cell growth. The LSUHSC research team discovered that oxidative stress regulates EBNA1's ability to activate these genes, leading to potential therapeutic approaches using existing treatments like Vitamin K.

SourceLouisiana State University Health Sciences Center·JournalPLOS Pathogens·DateJun 11, 2009

Maple seeds and animals exploit the same trick to fly

Researchers have discovered that maple seeds generate lift by creating a vortex, similar to insects and animals, which allows them to be carried aloft by the wind. The study suggests that plants and animals have converged on this aerodynamic solution for improving flight performance.

SourceCalifornia Institute of Technology·JournalScience·DateJun 11, 2009

Isolated forest patches lose species, diversity

A new study reveals that decades of fragmentation have taken a toll on the sustainability of Wisconsin's forests, reducing native plant abundance and diversity. The effects of urbanization and agricultural dominance are now determining which species can survive in isolated forest patches.

SourceUniversity of Wisconsin-Madison·JournalConservation Biology·DateJun 11, 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.

Study finds segregation decreases access to surgical care for minorities

A study published in Journal of the American College of Surgeons reveals that segregation is associated with decreased access to surgical services and increased emergency room visits among minority populations. The research highlights the need to address racial disparities in healthcare, particularly in the most segregated areas.

SourceWeber Shandwick Worldwide·JournalJournal of the American College of Surgeons·DateJun 11, 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.

Jumping genes discovery 'challenges current assumptions'

New research challenges standard assumptions about the timing of mobile DNA insertions in humans. Jumping gene insertions are found to occur during embryogenesis after fertilization, rather than in eggs and sperm cells. This discovery has implications for understanding genetic diseases, cancer, and the development of new genes.

SourceUniversity of Pennsylvania School of Medicine·JournalGenes & Development·DateJun 11, 2009
Apple iPhone 17 Pro

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

Promising device snags young inventors coveted spot at IShow

A duo of researchers from the University of Houston has developed a unique health-monitoring system that could provide congestive heart failure patients with peace of mind and significant healthcare cost savings. The device, known as the BlueScale, simultaneously records various patient information in just 10 seconds.

SourceUniversity of Houston·DateJun 11, 2009

A case of cecal volvulus

A case of cecal volvulus was reported in a 78-year-old woman with severe abdominal pain and fever. The patient underwent an emergent laparotomy and recovered after intensive care. A review of Japanese literature revealed an increase in aged patients with mental disabilities presenting with cecal volvulus, adoption of ileo-colectomy as ...

SourceWorld Journal of Gastroenterology·JournalWorld Journal of Gastroenterology·DateJun 11, 2009

Exenatide promotes weight loss when added to diet and exercise

A study by The Endocrine Society found that exenatide, an injectable medication, helps nondiabetic obese individuals lose over three times more weight than those receiving a placebo. This is the first study to assess the effect of exenatide on body weight in nondiabetic obese individuals.

SourceThe Endocrine Society·DateJun 11, 2009
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.

If you do good, you look good

A study by Dr. Anat Bracha of Tel Aviv University found that participating in charitable events in public settings boosts donations due to positive recognition from the community. In contrast, monetary incentives are more effective in private settings, where social judgment is less present.

SourceAmerican Friends of Tel Aviv University·JournalAmerican Economic Review·DateJun 11, 2009
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.

If the shoe flits, duck: A real-life example of humans' dual vision system

Researchers explore human visual system's dual processing of sensory information, revealing independent pathways for actions and perception. The study demonstrates that threatening stimuli grab attention, even when consciously unidentified, highlighting the brain's ability to prioritize survival.

SourceUniversity of Washington·JournalCurrent Biology·DateJun 11, 2009

A breakthrough in gastric carcinogenesis

Researchers discovered a correlation between CHFR silencing and microsatellite alteration in gastric cancer, leading to mitotic checkpoint disruption and increased cell survival. This study provides new information on the genetic mechanisms underlying gastric carcinogenesis.

SourceWorld Journal of Gastroenterology·JournalWorld Journal of Gastroenterology·DateJun 11, 2009

A new 'idol' grabs the spotlight

Researchers identified an enzyme called Idol that destroys the LDL receptor, allowing more 'bad' cholesterol to circulate in the blood. By blocking Idol's activity, cells produce more receptors and absorb more cholesterol from the body.

SourceUniversity of California - Los Angeles·JournalScience·DateJun 11, 2009

The microbial hydrocarbon diet

Researchers have found the optimal conditions for a new microbe to degrade n-hexadecane, suggesting a more effective approach to bioremediation. The team discovered that enzymes within the microbial cell and its membrane are responsible for degradation, with neutral pH and 30 Celsius temperature being ideal conditions.

SourceInderscience Publishers·JournalInternational Journal of Environment and Pollution·DateJun 11, 2009

Male flies: Not the world's most sensitive lovers

In Drosophila montana, males try to prolong copulation to increase their chances of fathering offspring. The researchers found that when females were prevented from dislodging the copulating male, matings lasted one-and-a-half times longer.

SourceBMC (BioMed Central)·JournalBMC Evolutionary Biology·DateJun 11, 2009
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.

Celestron NexStar 8SE Computerized Telescope

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

UIC evaluates 'virtual world' training for public health emergencies

Researchers at UIC are conducting a study to assess the effectiveness of collaborative virtual environments in improving public health preparedness and response planning. The study, funded by a $1.6 million grant from the CDC, uses Second Life to train public health workers in emergency preparedness.

SourceUniversity of Illinois Chicago·DateJun 11, 2009

Are angiotensins involved in the hemodynamic changes of cirrhosis patients?

The study found that Ang-(1-7) levels predominate in the peripheral circulation in early stages of liver cirrhosis, contributing to reduced vascular resistance. In advanced stages, Ang 2 leads to extra-splanchnic vasoconstriction. The relationship between these peptides and hemodynamic changes was investigated.

SourceWorld Journal of Gastroenterology·JournalWorld Journal of Gastroenterology·DateJun 11, 2009
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.

Deforestation causes 'boom-and-bust' development in the Amazon

Research reveals that clearing the Amazon rainforest brings initial improvements in income and quality of life for Brazilian communities, but these gains are short-lived. The study suggests that levels of development revert back to below national average levels once natural resources are exploited and deforestation expands.

SourceUniversity of Cambridge·JournalScience·DateJun 11, 2009

Australia's climate: Drought and flooding in annual rings of tropical trees

Scientists have compiled the first ever growth ring chronology from tropical Australia, revealing that tree growth depends mainly on annual precipitation. The analysis suggests that growth rings are a more suitable proxy data for registering precipitation dynamics in Australia than current methods based on ENSO and IPO.

SourceHelmholtz Association·JournalClimate Dynamics·DateJun 11, 2009

NIH funds Einstein center to target HIV-related brain disease

The Einstein Proteomics Research Center aims to identify brain proteins responsible for neurological complications in people infected with HIV, particularly those who are also addicted to drugs. The center will investigate the mechanism of HIV infection and develop biomarkers to detect neurological disease.

SourceAlbert Einstein College of Medicine·DateJun 11, 2009
Fluke 87V Industrial Digital Multimeter

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

New images may improve vaccine design for deadly rotavirus

Researchers have mapped the structure of an antiviral antibody clamped onto rotavirus protein VP7, revealing intimate details about how it interferes with virus infection. The discovery may lead to the development of a new generation of rotavirus vaccines that are easier to store and administer.

SourceHoward Hughes Medical Institute·JournalScience·DateJun 11, 2009

Study shows promise for new cancer-stopping therapy

Researchers discovered that delivering a small molecule that is highly expressed in normal tissues but lost in diseased cells can result in tumor suppression. The study employed a novel strategy to treat hepatocellular (liver) cancer, using microRNAs (miRNA) gene delivery via a recombinant adeno-associated virus (AAV).

SourceNationwide Children's Hospital·JournalCell·DateJun 11, 2009

Lost molecule is lethal for liver cancer cells in mice

Scientists have found that replacing microRNAs in liver cancer cells can be lethal, while leaving healthy cells unaffected. The study used a special delivery virus to introduce the microRNA into mice with liver cancer, resulting in rapid death of tumor cells.

SourceJohns Hopkins Medicine·JournalCell·DateJun 11, 2009
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.

Waste disposal protein is mechanism behind cancer tumor suppression

A waste disposal protein called p62 is responsible for disposing of damaged proteins in cells, preventing the accumulation of toxic waste that can promote cancer tumor growth. Researchers discovered that controlling p62 levels can stimulate autophagy and lead to tumor suppression.

SourceRutgers University·JournalCell·DateJun 11, 2009

Assessment of safety and efficacy of human embryonic stem cell therapy

Researchers have demonstrated the long-term safety and efficacy of human embryonic stem cell-derived retinal pigment epithelium in animal models of eye diseases. The therapy has shown functional rescue in both RCS rat and Elov14 mouse, with sustained visual function without tumor formation or untoward pathological reactions.

SourceAdvanced Cell Technology·JournalStem Cells·DateJun 11, 2009

International study could aid search for life in the universe

A team of international scientists captured a snapshot of Earth's chemical signature using a lunar eclipse, providing crucial information for identifying potentially habitable planets. The observation, published in Nature magazine, offers a unique opportunity to study planetary atmospheres and compositions.

SourceUniversity of Central Florida·JournalNature·DateJun 11, 2009
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.

Low-fat diet helps genetically predisposed animals avoid liver cancer

Researchers found that a high-fat diet increases the risk of liver cancer in genetically susceptible mice, while switching to a low-fat diet reverses this outcome. The study could lead to screening methods for precancerous conditions and cancer prevention strategies related to obesity.

SourceUniversity of Pennsylvania School of Medicine·JournalHuman Molecular Genetics·DateJun 11, 2009

What are the risk factors of sporadic colorectal cancer?

A study published in the World Journal of Gastroenterology found that current alcohol drinking and a high body mass index (BMI) ≥ 24.0 kg/m2 are independent risk factors for colon and rectal cancer. Former alcohol consumption and a positive family history of cancer are also linked to an increased risk of colon cancer.

SourceWorld Journal of Gastroenterology·JournalWorld Journal of Gastroenterology·DateJun 11, 2009

Wii-hab may enhance Parkinson's treatment

Researchers found significant improvements in rigidity, movement, fine motor skills, and energy levels among Parkinson's patients playing Wii games. Most participants experienced a decrease in depression levels to zero.

SourceMedical College of Georgia at Augusta University·DateJun 11, 2009

Hidden genitalia in female water striders makes males 'sing'

In a study on female water striders, researchers found that females use morphological shields to protect their genitalia from male attempts at copulation. In response, males produce a courtship song by tapping the water surface, allowing females to expose their genitalia only after receiving the signal.

SourcePLOS·JournalPLOS ONE·DateJun 11, 2009

Researchers at Case Western Reserve discover a new way the body fights fungal infection

Researchers at Case Western Reserve University have identified a critical role of interleukin-1β in protecting against oral colonization by Candida albicans. The study found that IL-1β is secreted by human immune cells in response to Candida infection and helps modulate the immune system, providing new avenues for therapeutic targets.

SourceCase Western Reserve University·JournalCell Host & Microbe·DateJun 11, 2009
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.

New American College of Surgeons risk calculator determines colorectal surgery risk

A new risk calculator developed by the American College of Surgeons can help surgeons provide patients with more detailed preoperative information about the risk of death and complications following colorectal surgery. The tool considers both patient and hospital factors, improving resource planning and informed decision making.

SourceWeber Shandwick Worldwide·JournalJournal of the American College of Surgeons·DateJun 11, 2009

Simulation helps students learn dental implant procedures

The Virtual Dental Implant Training Simulation Program uses multiple patients and clinical scenarios to teach diagnostics, decision making, and treatment protocols. Research shows that healthcare providers who practice clinical skills via simulation have better patient outcomes than those who don't.

SourceMedical College of Georgia at Augusta University·DateJun 11, 2009

Study reveals publics' ignorance of anatomy

A study published in BMC Family Practice found that most people lack basic knowledge of human anatomy. Approximately half of the participants correctly identified the location of major organs, highlighting potential problems in doctor-patient communication and diagnosis.

SourceBMC (BioMed Central)·JournalBMC Family Practice·DateJun 11, 2009

The dark side of animation

A study found that custom animations in PowerPoint lectures negatively impact student learning, requiring greater concentration and reducing exposure time. In contrast, static graphics are better retained by students.

SourceInderscience Publishers·JournalInternational Journal of Innovation and Learning·DateJun 11, 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.

A strong future for women in medicine

Despite progress, women still face underrepresentation in senior academic roles and limited flexible working support. The medical profession should be secure with a merit-based selection process, providing a larger talent pool for both women and men.

SourceThe Lancet_DELETED·JournalThe Lancet·DateJun 11, 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.

Study: Greenland ice sheet larger contributor to sea-level rise

A recent study published in Hydrological Processes reveals that the Greenland ice sheet is a major contributor to sea-level rise, accounting for nearly 25% of global sea-rise in the past 13 years. The study also shows that seas are rising at a rate of over 3 millimeters per year, more than 50% faster than the average for the 20th century.

SourceUniversity of Alaska Fairbanks·JournalHydrological Processes·DateJun 11, 2009

Association between obstructive sleep apnea and weight gain found

A recent study found a significant association between obstructive sleep apnea (OSA) and weight gain. Participants with severe OSA had an increased BMI by 0.52 kg/m2 compared to those with moderate OSA. The study suggests that people with more severe OSA may be more likely to experience weight gain over time.

SourceAmerican Academy of Sleep Medicine·DateJun 11, 2009

A natural hormone may protect muscle from atrophy

Researchers discovered a potential new treatment for muscle atrophy, a debilitating condition characterized by loss of muscle mass and function. Des-acyl ghrelin, an appetite-stimulating hormone, shows anti-atrophic activity on skeletal muscle in mice with muscular atrophy.

SourceThe Endocrine Society·DateJun 11, 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.

Protein that triggers plant cell division revealed by researchers

Scientists at Stanford University have discovered a plant protein called BASL that plays a key role in asymmetric cell division, a process vital for creating different types of cells in plants. The discovery sheds light on the unique mechanisms used by plants to control cell growth and development.

SourceStanford University·JournalCell·DateJun 11, 2009

Sleep may be important in regulating emotional responses

A study found that sleep selectively preserves memories of emotionally salient scenes, with benefits lasting up to four months. The sleeping brain calculates what is most important about an experience and selects only the adaptive elements for consolidation and long-term storage.

SourceAmerican Academy of Sleep Medicine·DateJun 11, 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.

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.

Symptoms of depression in obese children linked to elevated cortisol

A new study connects abnormalities of cortisol with symptoms of depression in obese children, indicating a hormonal link between the two conditions. Cortisol levels in the afternoon and evening correlate positively with depressive symptoms, suggesting that obesity and depression may have a shared underlying cause.

SourceThe Endocrine Society·DateJun 11, 2009

Dangerous liaisons: Bacterial 'sex' causes antibiotic resistance

Researchers studied DNA from 1,930 pneumococcus strains and found a link between bacterial recombination and antibiotic resistance. Bacteria that undergo sex with other species are more likely to develop resistance to antibiotics, making treatment increasingly difficult.

SourceImperial College London·JournalScience·DateJun 11, 2009

Bariatric surgery increases risk of fractures

A new study found that bariatric surgery nearly doubles the expected risk of fractures, especially hand and foot fractures, in patients who underwent weight loss surgery to treat medically complicated obesity. The researchers analyzed data from 97 patients with an average age of 44 years and found a total of 31 fractures after surgery.

SourceThe Endocrine Society·DateJun 11, 2009
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.