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Science News Archive October 2009


Page 12 of 27

Non-nuclear families function, too

A new study by the Spanish Foundation for Science and Technology found that adolescents' perception of family functioning is no longer decisive. Family structure is no longer a determining factor in an adolescent's perception of proper family function.

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.

Hormone mix could cut breast cancer risk and treat symptoms of menopause

A combination of estrogen and a selective estrogen receptor modulator (SERM) may relieve menopause symptoms and lower breast cancer risk without the progestin side effects. Researchers treated breast and endometrial cell lines with the hormone mix, finding that it blocked cell growth and prevented proliferation.

Bedrock of a holy city: the historical importance of Jerusalem's geology

A new analysis of historical documents and geological maps reveals Jerusalem's karst geology played a pivotal role in the city's selection as David's capital, allowing it to successfully fend off Assyrian sieges. The discovery highlights the significance of water security in the region, with implications for modern-day life and politics.

Detecting the undetectable in prostate cancer screening

Researchers have developed a highly sensitive PSA assay using nanotechnology, enabling early detection of prostate cancer recurrence and improving treatment outcomes. The new technology has the potential to redefine the PSA 'zero' level, allowing for earlier diagnosis and targeted therapies.

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.

Killer algae a key player in mass extinctions

A new theory proposes that toxic algae may have caused the world's great species annihilations during five of Earth's largest mass extinctions. Algae blooms can kill thousands of fish and poison shellfish, with some plants on land also picking up toxins through their roots.

Power at work has payoffs, but not for health

People with job authority report higher levels of interpersonal conflict and stressors spilling over into non-work domains. Despite benefits like greater pay and problem-solving tasks, the health costs negate the advantages of having power at work.

APIC announces winner of first Healthcare Administrator Award

Deborah Friberg, COO and Executive Vice President at WakeMed Health and Hospitals, has been recognized by APIC with the first annual Healthcare Administrator Award. She supports infection prevention and control through various initiatives, including MRSA reduction and hand hygiene compliance.

The book of life can now literally be written on paper

Researchers at Harvard's Wyss Institute have developed a method to grow cells in three dimensions using paper stacks, mimicking real tissues. This technique allows for uniform oxygen and nutrient delivery, making it easier to study cancer and other diseases.

Apple iPhone 17 Pro

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

International glass institute receives second 5-year grant from NSF

The International Materials Institute for New Functionalities in Glass at Lehigh University has received a second five-year contract from the National Science Foundation. The institute aims to increase the visibility of glass globally while encouraging more students to pursue careers in this historically low-number field. Glass plays a...

A master mechanism for regeneration?

Researchers at the University of Michigan have found that genes involved in fin regeneration and heart repair are also required for rebuilding damaged light receptors in the eye. The study suggests that a common molecular mechanism guides the process, no matter what body part is damaged.

Study examines treatment for olfactory loss after viral infection

A study published in Archives of Otolaryngology–Head & Neck Surgery found that glucocorticoid medication and Ginkgo biloba significantly improved the sense of smell in individuals with previous olfactory loss due to upper respiratory infections. The treatment was effective regardless of whether it was used alone or in combination.

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.

Thyroid surgery safe for older patients, study finds

A multi-year study of 428 thyroidectomy patients found only slight differences in rates of complications and hospital readmissions between older and younger patients. Elderly patients had a slightly higher hospital readmission rate due to transient calcium levels issues, not age-related complications.

JCI table of contents: Oct. 19, 2009

Researchers found that administration of APC protein slowed disease progression and extended survival in mice with inherited ALS. The study suggests activating APC might benefit patients with inherited and possibly sporadic ALS, but warns of potential risks.

Yale's scan of Turkish infant's genome yields a surprise diagnosis

A Yale team used whole exome sequencing to identify a mutation in a Turkish baby's genome, leading to a surprise diagnosis and treatment of congenital chloride diarrhea. The approach has potential for dramatic insights into human diseases and could become commonly used in clinical settings.

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.

Study: Added oxygen during stroke reduces brain tissue damage

Researchers at Ohio State University have found that giving supplemental oxygen to animals during a stroke can reduce damage to brain tissue surrounding the clot. The timing of delivery is critical to achieving this benefit, and using pure oxygen delivered by mask was also effective.

Popping the cork on biofuel agriculture

Researchers at Brookhaven National Laboratory identified an enzyme responsible for suberin production, which can help control water and nutrient transportation in plants. This discovery may lead to easier agricultural production of crops used for biofuels, enabling them to thrive in specific or harsh environments.

Global warming may spur increased growth in Pacific Northwest forests

A new study suggests that global warming may lead to increased productivity in high-elevation forests of the Pacific Northwest, with potential increases of up to 500% in Washington. However, lower-elevation forests are expected to decline in growth due to drought stress and limited moisture.

Researchers reveal mechanism for neuron self-preservation

A study published in the Journal of Cell Biology reveals that PIKfyve, a lipid kinase, protects neurons from calcium overload by degrading voltage-gated calcium channels. This mechanism may provide new insights into neurodegenerative disorders such as stroke, Parkinson's disease, and Alzheimer's disease.

Meta Quest 3 512GB

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

West Antarctic ice sheet may not be losing ice as fast as once thought

Researchers from the University of Texas at Austin and other institutions have made new ground measurements that suggest the West Antarctic ice sheet is losing ice slightly more slowly than estimated. The findings could improve estimates of ice mass loss and provide a clearer picture of Antarctica's contribution to rising sea levels.

MIT neuroscientists find neural stopwatch in the brain

Researchers identified populations of neurons coding time with extreme precision in the primate brain's prefrontal cortex and striatum. This fine-scale coverage enables precise timing of actions, such as speaking or driving a car.

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.

Researcher honored for experimental work in nanotechnology

Dr. Óscar Custance has been awarded the 2009 Feynman Prize for Experimental Work in Nanotechnology for his pioneering research in atomic-scale precision. His work could lead to more effective catalysts for hydrogen fuel production. The prize recognizes advancements toward molecular manufacturing.

Compound shows potential for slowing progression of ALS

Scientists have discovered a compound that dramatically slows the progression of amyotrophic lateral sclerosis (ALS) in mice by extending their lifespan by 25 percent and reducing muscle wasting. The enzyme APC has been shown to protect neurons from cell death caused by SOD1 mutations, which are linked to most sporadic cases of ALS.

Children's blood lead levels linked to lower test scores

Researchers at Duke University found a clear dose-response pattern between lead exposure and test performance, with the effects becoming more pronounced as lead levels increase. Early childhood exposure to lead accounts for 7-16% of decline in test scores, while family poverty status accounts for 25-28%, and parental education for 58-65%.

Understanding the brain's natural foil for over-excited neurons

High concentrations of glutamate activate the metabotropic glutamate receptor 1 (mGlu1 receptors), which become protective against toxic effects. This finding may lead to rational drug design for therapeutic approaches to protect against excitotoxic brain damage following injury and neurodegenerative diseases.

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.

Researchers optimizing progesterone for brain injury treatment

Researchers are optimizing progesterone for treating traumatic brain injuries by combining it with vitamin D and developing more water-soluble analogues. These compounds showed equivalent ability to reduce brain swelling in animal models, suggesting potential for improved treatment outcomes.

Research with wood ducks earns graduate student 2 national awards

Sarah DuRant, a Virginia Tech doctoral student, has received two national awards for her research with wood ducks. Her work explores the effects of slight changes in incubation temperature on early growth and stress endocrinology in wood ducklings. This novel approach reveals profound impacts on the health of baby birds after hatching.

The protein APC slows Lou Gehrig's disease in mice

Researchers found that administering APC and its analogs slowed disease progression and extended survival in mutant SOD1-expressing mice. These compounds worked by decreasing SOD1 expression in brain cells, indicating a potential neuroprotective effect of APC in mouse models of inherited ALS.

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.

Clemson researchers say algae key to mass extinctionss

Researchers at Clemson University found evidence that toxin-producing algae played a deadly role in mass extinctions. The scientists analyzed ancient algal deposits and found that these algae were present in sufficient quantities to kill off plants and animals.

Latest diabetes figures paint grim global picture

The International Diabetes Federation reports a staggering 285 million people worldwide have diabetes, with the disease disproportionately affecting low and middle-income countries. The number is expected to reach 435 million by 2030, posing a significant threat to global health and economies.

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.

Super typhoon Lupit heading west in the Philippine Sea

Super Typhoon Lupit is currently packing maximum sustained winds near 132 mph and moving westward toward northern Luzon. The storm has joined the ranks of super typhoons in the Western Pacific Ocean, with forecasters expecting a landfall in the region during the afternoon hours on October 22.

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 technique paves way for medical discoveries

Researchers at the University of Gothenburg have developed a new technique that allows for precise analysis of protein sugar structures. This breakthrough may lead to a better understanding of disease mechanisms and potential new treatments, particularly for conditions such as Alzheimer's.

Teach your physicians well

A new Brandeis study found that faculty values at US academic medical centers align well with institutional missions, but in some cases, institutions fall short of practicing what they preach. Faculty prioritize caring for the underserved, teaching, intellectual rigor, and freedom of discovery.

How Chinese firms benefit from the diversity of foreign direct investment

A new study by Rice University's Jones Graduate School of Business found that Chinese firms benefiting from the diversity of foreign direct investment (FDI) productivity and competitiveness. The more diverse the national origins of foreign investors in an industry, the higher the productivity of Chinese firms.

Ancient bison genetic treasure trove for farmers

Researchers analyzed ancient bison genetic mutations to identify important variations in domestic animals, potentially improving agricultural breeding programs and disease resistance. The study also revealed the evolutionary history of the ruminant family tree and provided insights into climate change adaptations.

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.

Intelligent system to help autistic children recognize emotions

A new facial expression recognition system is being developed to help autistic children recognize emotions of surrounding people. The portable device uses boosting classifier and derivative-based filtering to locate the face region and classify emotional expressions.

Protein may predict heart attack and early death, not stroke

A study of 2,240 people found that high CRP levels were associated with an increased risk of heart attack and death, while lower levels were linked to reduced risk. The protein was not linked to an increased risk of stroke in the study, suggesting it may be more useful for predicting heart health.

Embargoed news from Annals of Internal Medicine

The American College of Physicians (ACP) has issued clinical practice guidelines for treating erectile dysfunction (ED), recommending the use of phosphodiesterase type 5 (PDE-5) inhibitors and individualizing decisions on hormonal tests. For patients with stable ischemic heart disease, adding ACE inhibitors to standard care improves ou...

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.