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Science News Archive August 2013


Page 6 of 29

4 cups of coffee a day may keep prostate cancer recurrence and progression away

Researchers found a 59% reduced risk of prostate cancer recurrence and/or progression in men who consumed four or more cups of coffee per day. The study suggests that bioactive compounds in coffee may have anti-inflammatory and antioxidant effects, but further research is needed to understand the mechanisms underlying the results.

Women at increasing risk of kidney stones, related ER visits

The study found a significant increase in women's risk of developing kidney stones, with more cases being seen in emergency departments over a four-year period. The rate of hospitalization remained stable, but the use of CT scans to diagnose kidney stones may contribute to the rise in emergency department charges.

Apple iPhone 17 Pro

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

Rethinking investment risk

A paper by MIT economist Alp Simsek suggests that financial innovation does not reduce portfolio risk, but instead raises it by spreading risk through new financial instruments and creating situations where parties hold opposing views. This can lead to increased average portfolio risks as speculative variance becomes dominant.

Why do haters have to hate?

Researchers have discovered a new dimension of personality known as dispositional attitude, which affects how individuals view and interact with the world. People with positive dispositional attitudes tend to be more open and like things, whereas those with negative attitudes are more likely to dislike things.

Language can reveal the invisible, study shows

Researchers used continuous flash suppression to render objects invisible and found that hearing the correct word boosted object visibility. Hearing an unmatched word suppressed it. The study suggests a deep connection between language and sensory perception.

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, 'robust' treatment for stroke uses genetic material from bone marrow

Researchers have developed a novel treatment for stroke using exosomes containing genetic material from bone marrow stem cells, which significantly improved neurological function in lab rats. The treatment, tested on lab rats with induced stroke, showed gradual and eventually significant improvement over four weeks.

Sea otters promote recovery of seagrass beds

A study found that sea otter recolonization led to an increase in grazing invertebrates, which kept algae growth under control and allowed seagrasses to recover. The findings suggest that restoration of entire food webs may be necessary for coastal habitat recovery.

Watching the production of new proteins in live cells

Researchers at Columbia University have developed a new technique to visualize protein synthesis in live cells, enabling the study of complex biological processes such as long-term memory and disease mechanisms. The method harnesses deuterium-labeled amino acids to track newly synthesized proteins, providing unprecedented insights into...

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.

Intervention appears effective to prevent weight gain among black women

A behavioral weight gain prevention intervention was effective in preventing weight gain among socioeconomically disadvantaged black women. The Shape Program, which included weekly self-monitoring and monthly counseling calls, resulted in a significant reduction in weight at 12 months compared to usual care.

NASA sees Depression Pewa pass in Pacific

Tropical Depression Pewa dissipated over the Pacific Ocean on August 26, 2013. NASA satellite data revealed a significant decrease in rainfall by August 25, indicating the storm's weakening. The Joint Typhoon Warning Center forecasted this outcome, and further observations confirmed the depression's waning life.

First report of real-time manipulation and control of nuclear spin noise

Researchers have demonstrated a method to create polarization order from random fluctuations, enabling enhanced sensitivity in nanometer-scale magnetic resonance imaging (MRI) and potentially solid-state quantum computers. This achievement has the potential to revolutionize nano- and atomic-scale imaging techniques.

Adapting to mainstream lowers diabetes risk in African-Americans

African-American children and teens who adapt to mainstream culture while maintaining their own identity can reduce stress and stress eating, lowering type 2 diabetes risk. Higher socioeconomic status does not necessarily protect against diabetes risk for Latino adolescents.

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.

New screening strategy may catch ovarian cancer at early stages

A new screening strategy for ovarian cancer has shown high specificity in detecting the disease before it becomes lethal. The two-stage approach incorporates changes in a blood protein called CA125 and has been found to have a positive predictive value of 40% for invasive ovarian cancer.

Grand Challenge grant awarded to team led by Nationwide Children's researcher

A multidisciplinary team led by Irina Buhimschi at Nationwide Children's Hospital has been awarded a Grand Challenge grant for their low-cost, paper-based urine test to diagnose preeclampsia. The test enables early diagnosis of the condition in resource-limited areas, reducing morbidity and mortality related to preeclampsia.

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.

Genome-wide survey examines recessive alzheimer disease gene

A genome-wide survey has identified a significant association between regions of homozygosity (ROHs) and the etiology of Alzheimer disease in Caribbean Hispanics. The study found that ROHs could significantly contribute to AD in this population, with notable associations observed at specific genetic loci.

Mathematical models help locate raw materials

Raimon Tolosana-Delgado's mathematical models help understand rock formation and sediment development, crucial for predicting raw material locations. The prize recognizes his work on developing general models applicable to various raw materials, which could improve exploration and extraction efficiency.

Researchers develop software tool for cancer genomics

A new bioinformatics software tool, DrGaP, has been developed to identify genetic mutations responsible for cancers. The tool combines statistical methods and bioinformatics tools to distinguish between driver mutations and passenger mutations, leading to a more complete identification of altered genes and signaling pathways in cancer.

Penn study finds earlier peak for Spain's glaciers

A study by University of Pennsylvania geologist Jane Willenbring and colleagues found that the local glacial maximum in southern Europe occurred earlier than expected, around 26,000 years ago. This discovery provides new insights into how regional climates have varied over time and could lead to more accurate global climate models.

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.

NASA catches Tropical Storm Kong-Rey form in northwestern Pacific

Tropical Storm Kong-Rey has formed in the northwestern Pacific, with NASA's Aqua satellite capturing its strengthening circulation. The storm is expected to bring scattered to widespread rain showers and thunderstorms to eastern Luzon, with sustained winds of 32-39 mph/52-63 kph.

Sweaty palms and racing heart may benefit some negotiators

A new study published in Psychological Science found that physiological arousal can be beneficial for individuals who enjoy negotiation, but detrimental for those who dread it. The researchers suggest that the key is interpreting arousal as excitement rather than nervousness.

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.

Drug blocks light sensors in eye that may trigger migraine attacks

A new molecule selectively blocks specialized light-sensitive receptors in the eyes, which could help treat migraines and potentially other disorders of the central nervous system. The drug also showed no interaction with rhodopsin or other opsins, making it a promising lead for research and potential clinical applications.

Size matters as nanocrystals go through phases

Berkeley Lab researchers observed direct size-dependence in metal nanocrystal phase transformations during reactions with hydrogen gas. This discovery holds key findings for optimizing commercial applications, including hydrogen storage systems, catalysts, fuel cells, and batteries.

Microneedle patch could replace standard tuberculosis skin test

A University of Washington team has developed a microneedle patch that can precisely deliver a tuberculosis test without user error. The patch uses biodegradable needles and has been shown to be as effective as the traditional skin test in detecting the infection.

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.

Development of a therapeutic algorithm for optimal nosebleed management

Researchers analyzed 147 patients with epistaxis and found that chemical cautery was significantly successful in achieving lasting hemostasis. Nondissolvable packing demonstrated the highest rate of failure or recurrence for initial bleed management, while more invasive procedures led to better outcomes and shorter hospital stays.

Changing river chemistry affects Eastern US water supplies

Researchers found two-thirds of Eastern US rivers have become more alkaline over 25-60 year periods, complicating drinking water treatment and harming aquatic ecosystems. Increased alkalinity also threatens metal pipe infrastructure and affects irrigated crops and fish.

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.

Pediatric readmission rates aren't indicator of hospital performance

A new study published in Pediatrics found that pediatric readmission and revisit rates are limited in their usefulness as a quality indicator for pediatric hospital care. The study suggests that grouping patients with similar diagnoses could improve the accuracy of readmission rates as a quality measurement.

Rim Fire Update Aug. 26, 2013

The Rim Fire continues to burn in northeastern California, affecting over 224 square miles of land. The fire's size and spread are hampered by inaccessible terrain and extreme weather conditions, making containment efforts challenging.

Fluke 87V Industrial Digital Multimeter

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

Video games do not make vulnerable teens more violent

Researchers found a slight calming effect of violent video games on youths with attention deficit symptoms, reducing aggressive behavior. The study challenges the popular belief that violent video games increase aggression in vulnerable youth.

RNA double helix structure identified using synchrotron light

Researchers from McGill University have confirmed a 50-year-old hypothesis on the RNA double helix structure, revealing its potential applications in biological nanomaterials and supramolecular chemistry. The discovery may lead to new possibilities for genetic information storage and treatment of diseases like HIV and AIDS.

Maintain, don't gain: A new way to fight obesity

A new study from Duke University finds that a 'maintain, don't gain' approach can be effective in preventing obesity-related health issues among premenopausal black women. By focusing on maintaining current weight, these women can reduce their likelihood of experiencing chronic diseases later in life.

Task Force recommends that physicians counsel youth against tobacco use

The USPSTF recommends that primary care clinicians provide education or brief counseling to prevent tobacco use in school-aged children and adolescents. A systematic evidence review found that such interventions can reduce the risk of smoking initiation by 19% compared to control participants.

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.

Eastern US water supplies threatened by a legacy of acid rain

A new study reveals that the Eastern US is experiencing a significant increase in river alkalinity, with two-thirds of streams and rivers becoming more alkaline over the past 25 to 60 years. This rise in alkalinity can lead to water quality issues, harm aquatic life, and exacerbate salinization of freshwater.

Comprehensive Parkinson's biomarker test has prognostic and diagnostic value

Researchers at the University of Pennsylvania School of Medicine have developed a comprehensive test for protein biomarkers in spinal fluid that shows prognostic and diagnostic value in early stages of Parkinson's disease. The study found that patients with lower levels of tau and alpha synuclein had greater motor dysfunction, while th...

New function for a well-known immune messenger molecule

Researchers at ETH Zurich discovered that IL-7 enhances lymphatic vessel drainage, a crucial function that could improve lymphedema treatment outcomes. This finding may help prevent or alleviate fluid accumulation and tissue swelling in patients with compromised lymphatic systems.

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.

Chelyabinsk meteorite had previous collision or near miss

Research on Chelyabinsk meteorite fragments reveals evidence of intensive melting process, likely caused by a collision or proximity to the Sun. The dark fragments contain spherical 'bubbles' and platinum group elements, which are unusual for their formation time period.