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Science News Archive April 2012


Page 17 of 29

Study dusts sugar coating off little-known regulation in cells

Researchers have increased knowledge of the O-GlcNAc regulatory system, a little-known mechanism that regulates proteins in cells. The study found hundreds of proteins modified by O-GlcNAc, which suggests a larger coordination between the O-GlcNAc and phosphate-based regulatory systems.

Apple iPhone 17 Pro

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

X-rays create a window on glass formation

Scientists have visualized the transformation of powder mixtures into molten glass using X-ray microtomography. The study revealed that contact between grains determines whether a mixture turns into liquid glass, and that sodium carbonate plays a key role in initiating chemical reactions.

Fluke 87V Industrial Digital Multimeter

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

Stress about wife's breast cancer can harm a man's health

A recent study found that men who reported the highest levels of stress in relation to their wives' breast cancer were at the highest risk for physical symptoms and weaker immune responses. The researchers suggest that clinicians caring for breast cancer patients could help their patients by considering the caregivers' health as well.

Countries that best prepare math teachers share similarities

The study found that countries like Taiwan and Singapore prepare math teachers better due to rigorous high school math instruction, highly selective university programs, and a more attractive teaching profession. This suggests that university-based teacher education programs are effective in preparing math teachers.

Can social media detect the changes in public mood?

Researchers analyzed Twitter data to detect changes in public mood, finding a significant increase in negative emotions following government spending cuts and summer 2011 riots. The study suggests that social media can provide insights into public sentiment, but its accuracy is limited compared to human assessment.

Mayo Clinic breast cancer study finds new type of mutation

Researchers at Mayo Clinic have discovered a new class of molecular mutation in various forms of breast cancer, which may shed light on the development and growth of different types of breast tumors. Fusion transcripts, the mutated forms of RNA, could provide a way to identify tumor subtypes and offer new strategies for treatment.

Sky & Telescope Pocket Sky Atlas, 2nd Edition

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Why does simply trusting your feelings lead to much better predictions?

A study by Michel Tuan Pham, Leonard Lee, and Andrew T. Stephen found that individuals who trusted their feelings were better able to predict future events than those with less trust. The 'emotional oracle effect' was proven across various predictions, including weather, stock market movements, and movie success.

When do consumers react to social exclusion with charitable behavior?

A new study found that consumers rejected by others are more likely to volunteer or donate to a worthy cause, while those ignored tend to engage in conspicuous consumption. The researchers propose that this is because people who feel rejected attempt to reconnect with society through prosocial behavior.

UWM discovery advances graphene-based electronics

Researchers at UWM create a semiconducting material called graphene monoxide (GMO) from graphene oxide, which could revolutionize electronics. The discovery pushes carbon materials closer to replacing traditional wires in devices.

Scientists find neural stem cell regulator

Researchers at the University of Colorado Anschutz Medical Campus found that a lack of a specific gene interrupts neural tube closure, a condition that can lead to serious birth defects. The study reveals new insights into neural tube development and opens up a new pathway for understanding how neural tube defects occur.

SAMSUNG T9 Portable SSD 2TB

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IU, Regenstrief automated system aims to improve child health

Researchers at IU School of Medicine and Regenstrief Institute created an automated system called CHICA to streamline pediatric care. CHICA uses risk factor data to alert physicians to potential issues, allowing them to focus on individual children's needs.

Adolescents can benefit from 12-step involvement

Research found that adolescent attendance and involvement in 12-step meetings, such as AA and NA, promote greater abstinence among young people. Attending meetings at least once a week or more significantly improves substance use outcomes.

Therapy exploits 'addiction' of leukemia cells

Researchers identify non-classical oncogenes critical for leukemia cell survival and develop a strategy targeting these molecules, potentially reducing toxicity of current treatments. Dual inhibition of PI3K subtypes supports cancer cell death in mice and human tumor cells.

Apple MacBook Pro 14-inch (M4 Pro)

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Fiber protects against cardiovascular disease -- especially in women

A study from Lund University found that women who eat high-fibre diets have a significantly lower risk of cardiovascular disease, with a 25% decrease compared to those on low-fibre diets. The researchers also discovered that men may not benefit from high fibre intake in the same way.

Research reveals 1 of the earliest farming sites in Europe

Researchers have found evidence of cereal-based agriculture and domesticated animals at Vashtëmi, a site in southeastern Albania that dates back to 6,500 BC. This discovery suggests that early farmers in the region preferred resource-rich settings, such as wetland edges, to establish pioneer farming villages.

Salt levels in fast food vary significantly between countries

A study by an international team of researchers found significant variations in salt levels among fast foods sold by major companies across developed countries. The study analyzed data on over 2,100 food items from six companies and found that some countries had much higher sodium content than others.

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Prenatal exposure to air pollution linked to childhood obesity

A Columbia University study finds pregnant women exposed to high levels of polycyclic aromatic hydrocarbons (PAHs) are more likely to have obese children. Children of mothers with high PAH exposure were nearly twice as likely to be obese at age 5 and 7, with an average weight gain of 2.4 lbs.

Omega-3 fatty acids not associated with beneficial effects in multiple sclerosis

A randomized controlled trial found that omega-3 fatty acid supplementation had no beneficial effects on disease activity in patients with relapsing-remitting multiple sclerosis. The study included 92 patients who received either omega-3 fatty acids or a placebo for six months, followed by interferon beta treatment for another 18 months.

Apple iPad Pro 11-inch (M4)

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JCI early table of contents for April 16, 2012

Researchers study the origins of HIV/AIDS, revealing that SIV replication in human tissues is crucial to viral efficiency. In contrast, a new study finds that autoantibodies against citrullinated proteins contribute to bone loss in rheumatoid arthritis patients.

2012 Hannover Messe: Innovations by KIT

KIT showcases algae engineering platform, laser technologies for battery production, electronic drawbar for agricultural machines, and organic computing system for tractors. Algae can convert sunlight into chemical energy, reducing CO2 emissions.

Nikon Monarch 5 8x42 Binoculars

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Nanosponges soak up oil again and again

Researchers at Rice University and Penn State University discovered a material that can absorb oil spilled in water due to the addition of boron to carbon nanotubes. The nanosponges have a high surface area, conduct electricity, and can be manipulated with magnets.

Promiscuous queen bees maintain genetic diversity

Promiscuous queen bees on Hainan Island and other locations keep their colonies healthy by maintaining a diverse gene pool. By mating with multiple males, they ensure the combination of complementary sex determination genes is kept diverse.

AmScope B120C-5M Compound Microscope

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New study traces the evolutionary history of what mammals eat

A new study has traced the evolutionary history of mammal diets, revealing that omnivores, including primates, bears, and dogs, came from ancestors that primarily ate plants. The study found that diet is linked to species diversification, with plant-eaters proliferating faster than meat-eaters.

Some patients do not walk after surgery despite encouragement

A study by Loyola Medicine found that despite encouragement, some patients do not walk after surgery, with median steps recorded at 80. Early discontinuation of catheters and IV fluids, as well as improved pain management, have the potential to increase walking and overall outcomes for these patients.

Researcher explores the 'word of mouth' paradox

Sarah Moore's research finds that analyzing emotional experiences reduces emotions, while analyzing practical experiences amplifies them. For positive experiences, it's best to relive the emotion without rationalizing, while cognitive experiences benefit from analysis and reflection.

Garmin GPSMAP 67i with inReach

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That is why plants grow towards the light!

Researchers at VIB discovered a new transport mechanism for auxin, allowing plants to direct their growth towards the light and absorb sunlight efficiently. This breakthrough could lead to more efficient crop growth and higher yields by regulating auxin levels in specific areas.

How Parkinson's disease starts and spreads

A team studied mice with a mutated form of alpha-synuclein, finding that injected clumps accelerated disease onset and severity. The clumps seemed to hijack brain signals, spreading throughout the brain.

Rigol DP832 Triple-Output Bench Power Supply

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Ammonites found mini oases at ancient methane seeps

Research found that ammonites made homes in unique environments surrounding methane seeps, forming integral part of interwoven communities. Isotope analysis revealed that these ancient mollusks spent their whole lives in these ecosystems.

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.

Despite obstacles, fine needle aspiration might be best diagnostic tool

Researchers found that fine needle aspiration is highly sensitive for diagnosing lung cancer, but has a high rate of false negatives, especially in larger lesions. The study recommends repeat imaging to monitor for growth and suggests this method can help patients avoid unnecessary surgery.

Latest research confirms genetic susceptibility to lung cancer

A recent study published in the Journal of Thoracic Oncology reveals that Japanese patients with lung cancer are more likely to harbor specific genetic mutations and have a different risk profile compared to Western patients. The research highlights the importance of considering genetic factors in lung cancer diagnosis and treatment.

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.

Salk scientists discover how plants grow to escape shade

Researchers found that phytochrome interacting factor 7 (PIF7) serves as key messenger between plant's cellular light sensors and production of auxins, hormones that stimulate stem growth. This discovery could lead to high-yield crops that gather light more efficiently and make better use of farmland.

New method may help detect marker for Alzheimer's disease earlier

A new method using florbetaben PET scans may help diagnose Alzheimer's disease earlier by detecting beta-amyloid plaques in the brain. The study found a sensitivity of 77% and specificity of 94% compared to post-mortem diagnosis, with even higher accuracy for visual assessments.

Sony Alpha a7 IV (Body Only)

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