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Science News Archive September 2011


Page 21 of 29

Primary component in turmeric kicks off cancer-killing mechanisms in human saliva

A pilot study using human saliva found that curcumin inhibited a critical cell signaling pathway and reduced pro-inflammatory cytokines in patients with head and neck cancers. The study suggests curcumin could be combined with other treatments to treat head and neck cancer, and may be given to high-risk patients as an adjuvant treatment.

Confronting meaninglessness

A recent study investigates how individuals respond to unexpected and unsettling events, suggesting that different threat-reduction approaches can be adaptive in various situations. The researchers propose a new framework for understanding responses to such events, highlighting the importance of considering individual perspectives on t...

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.

Fathers wired to provide offspring care

A new Northwestern University study confirms that human males are biologically wired to care for their offspring, showing that fatherhood significantly lowers testosterone levels. The study found that fathers who became more involved in child care experienced the largest decline in testosterone.

Blacks develop high blood pressure one year faster than whites

Blacks with prehypertension have a 35 percent greater risk of progressing to high blood pressure than whites. Lifestyle changes such as weight loss and physical activity can reduce the risk of developing high blood pressure for those with prehypertension.

Apple iPhone 17 Pro

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

A tale of (more than) 2 butterflies

Researchers studied the genetic basis of species formation in the Appalachian tiger swallowtail butterfly, a rare hybrid of Eastern and Canadian tiger swallowtails. The study reveals that hybrid speciation can create new combinations of life history and morphological traits, allowing colonization of novel environments.

New species of ancient predatory fish discovered

A new species of ancient predatory fish, Laccognathus embryi, has been discovered in North America during the Devonian Period. The 5-6 foot long fish had a wide head, small eyes, and robust jaws lined with large piercing teeth.

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.

Scientists utilize breath and sweat to detect trapped humans

Researchers created a simulator of a collapsed building to test portable sensors that use human metabolites, detecting carbon dioxide, ammonia, and volatile organic compounds. The study's findings hold promise for improving detection systems in disaster scenarios.

Study reveals critical similarity between two types of do-it-all stem cells

Researchers at University of Wisconsin-Madison report 99% protein similarity between two types of do-it-all stem cells, shedding light on their potential applications in cell replacement therapies. The study measured over 6,000 proteins using mass spectrometry and provides insights into their biological role.

International study identifies new gene targets for hypertension treatment

An international study identifies 28 new gene regions associated with blood pressure, including a previously unknown physiologic pathway involved in blood pressure control. The findings suggest potential targets for new hypertension drugs and may lead to improved treatment options for cardiovascular complications.

USC scientists generate first detailed map of human neuroreceptor

USC scientists have created the world's first high-resolution images of the α7 receptor, a molecule responsible for transmitting signals between neurons. This breakthrough promises to revolutionize drug design by allowing pharmaceutical companies to target specific receptors instead of using trial-and-error approaches.

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.

Genome-wide hunts reveal new regulators of blood pressure

Researchers identified 29 DNA sequence variations linked to blood pressure, suggesting a complex genetic regulatory mechanism. The study pooled data from over 200,000 people worldwide and found common genetic variants in individuals of Asian and African ancestry.

New coral dating method hints at possible future sea-level changes

A new coral dating method developed by WHOI researcher William G. Thompson provides accurate age estimates for fossil coral reef skeletons in the Bahamas, revealing that sea levels were less stable than previously believed. The study suggests that a similar scenario to the Last Interglacial could occur if current warming trends continue.

A guiding light for new directions in energy production

Optofluidics, the study of microfluidics combined with optics, is poised to revolutionize energy production. By directing light and concentrating its use, optofluidics can increase efficiency in existing systems like biofuel reactors and solar cells, as well as innovate new forms of energy production.

Innovating for every woman, every child

The report emphasizes the importance of self-sustaining supply-demand systems in improving health and wellbeing for marginalized women and children globally. The authors highlight democratising technologies like mobile phones as a key opportunity for local demand to be understood, appreciated, and locally solved.

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.

Dangers of exposure to 'white' light

A new international study reveals that 'white' light bulbs emit shorter wavelengths that suppress melatonin production, causing behavior disruptions and health problems. The researchers recommend limiting the use of 'white' light, adjusting lampposts to reduce light pollution, and using energy-efficient lighting.

Squeezed laser will bring gravitational waves to the light of day

Researchers from Max Planck Society and Leibniz University Hannover have successfully applied the 'squeezed light' method to improve the sensitivity of the GEO600 gravitational wave detector. This new technology reduces shot noise by a factor of two, allowing for more accurate measurements of tiny changes in space-time.

Discovery of blood pressure genes could help prevent cardiovascular disease

Researchers identified 16 new gene regions associated with blood pressure and confirmed 12 previously discovered ones, providing insights into the genetic mechanisms of hypertension. The study's findings could lead to new therapeutic drug development and improved treatment options for individuals with high blood pressure.

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.

Lithosphere highlights: New research posted Sept. 2

Two studies examine the Jemez-Embudo Accommodation Zone in New Mexico and the Tennessee Salient in Appalachia, shedding light on tectonic processes. Geodynamic models and paleomagnetic data reveal no statistically significant rotation in the Rio Grande Rift and indicate a more complex history of curvature formation.

Changes to distribution of livers for transplant proposed

Transplantation specialists propose changes to liver organ distribution to prioritize patients with high MELD scores and reduce waitlist mortality. The new model aims to rapidly allocate organs to those most in need, ensuring timely delivery and reducing death rates.

Local government, homeowners paying price for non-native forest insects

A recent study by the USDA Forest Service estimates that non-native forest insects, such as the emerald ash borer and Asian longhorned beetle, are causing significant economic damage to urban trees. The study reveals that homeowners and local governments are bearing the greatest share of costs associated with these insects.

Birth control pills affect memory, UCI researchers find

UCI researchers found that hormonal contraceptives improve women's ability to remember the gist of an emotional event, but not the details. This discovery may help explain why women experience post-traumatic stress syndrome more frequently than men.

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.

Groundbreaking DNA tests could trap deer poachers

Researchers at the University of Strathclyde have developed a DNA test that can identify deer poachers by detecting low levels of human DNA on deer carcasses. The test has been shown to be effective in recovering DNA profiles from poached deer remains, with a success rate of less than one in a billion.

Rhythm is it

Researchers have discovered that HCN channels, essential for the heart's electrical signals, are vital for normal repolarization. A new animal model showed a significant reduction in repolarization phase duration when one subtype of HCN channel protein was missing.

Wayne State University researcher to study spinal muscular atrophy

Researchers aim to clarify the role of alpha-synuclein in spinal muscular atrophy (SMA), a genetic disease causing muscle weakness and degeneration. A better understanding of SNCA's role may lead to new therapies for SMA, potentially identifying useful disease markers and advancing neuromuscular disease research.

Celestron NexStar 8SE Computerized Telescope

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

Homeowners, taxpayers pay billions to fight invasive pests

Invasive tree-feeding insects cause significant economic damage to homeowners, local governments, and the federal government, resulting in estimated annual losses of over $2 billion. The study highlights the need for strengthened regulations and enforcement to protect forests and economies from invasive pests.

Can scientists look at next year's climate?

Researchers at UCLA have developed a new algorithm that improves climate forecast accuracy by 16 months, enabling more precise predictions for agriculture and industry, while also helping identify El Niño events

Cotton's potential for padding nonwovens

Cotton technologist Paul Sawhney and his colleagues investigated using virgin cotton in nonwoven materials. They found that greige cotton, a naturally water-repellent material, can be made absorbent by controlling water pressure during processing.

Diamondback moth host-parasite interaction unraveled

Researchers identified genes expressed when diamondback moth is attacked by parasitic wasp, which could lead to new control measures and resistance management strategies. The study provides a comprehensive analysis of the impact of parasitization on host physiology.

Rebalancing the nuclear debate through education

Brazilian scientist Heldio Villar advocates for better physics teaching and environmental education on radioactivity and nuclear power generation. This approach could lead to a more informed public and reduced reliance on fossil fuels.

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.

Early motor experiences give infants a social jump start

A new study found that providing infants with 'sticky mittens' enhances their interest in faces, indicating advanced social development. This suggests that early motor training can benefit infants at risk for autism spectrum disorders.

New twist in diabetes drugs could reduce life-threatening side effects

Researchers at Dana-Farber Cancer Institute have developed prototype drugs with powerful anti-diabetic effects without the severe side effects of current medications. The new compounds target PPAR-gamma, a metabolic regulator controlling fat cell development, and block phosphorylation to minimize risk.

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.

Researchers find high levels of toxic PCBs in Indiana Harbor and Ship Canal

A recent study found high concentrations of polychlorinated biphenyls (PCBs) in the deep sediments of the Indiana Harbor and Ship Canal, posing a risk to human health and the environment. The discovery was made by researchers from the University of Iowa Health Care, who used submersible vibro-coring systems to collect sediment samples.

Hormone predicts which kidney patients might die early

A blood test measuring fibroblast growth factor-23 (FGF-23) levels can identify kidney disease patients who are at high risk of developing heart problems, needing dialysis, and dying prematurely. FGF-23 levels are strongly associated with key outcomes in CKD patients.

Fermi's latest gamma-ray census highlights cosmic mysteries

The Fermi catalog reveals a mix of known and unknown objects, with active galaxies, pulsars, and supernova remnants making up a large portion. Unassociated sources pose an intriguing mystery, sparking research into new types of gamma-ray-emitting objects.

Invasive forest insects cost homeowners, taxpayers billions

The study estimates $1.7 billion in local government expenditures and $830 million in lost residential property values each year from invasive tree-feeding insects like the emerald ash borer and Asian longhorned beetle. Strengthening regulations and enforcement are crucial to mitigate future costs.

Fluke 87V Industrial Digital Multimeter

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

Taming light

Researchers achieve precise control over ultrashort light pulses, enabling the manipulation of electron motion in atoms and molecules. This breakthrough enables new tools for studying sub-atomic processes and understanding atomic interactions.

Fewer than 3 doses of cervical cancer vaccine effective

A new study suggests that Cervarix vaccine may be as effective in preventing cervical cancer with fewer than three doses, offering potential cost and logistics benefits. The researchers found similar protection levels among women receiving one, two, or three doses of the vaccine.

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.

NASA satellite rainmap shows extent of Tropical Storm Lee's heavy rainfall

Tropical Storm Lee caused massive rainfall across central Louisiana, Mississippi, and northern Alabama, with some areas receiving over 250 mm. The TRMM satellite's TMPA analysis showed heavy rains extending inland from the Gulf of Mexico, with Chattanooga Tennessee breaking its all-time 24-hour rainfall record.

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.