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Science News Archive 2014


Page 79 of 376

Scientists sniff out unexpected role for stem cells in the brain

Researchers found that newly formed brain cells in the olfactory system maintain proper connections and are essential for recovery from disrupted states. The discovery challenges previous assumptions about neuronal development and suggests a constant supply of new neurons is necessary to stabilize the mature structure.

University of Calgary research leads to brain cancer clinical trial

Researchers have made a breakthrough in brain cancer treatment by identifying a key process that can be targeted with a new drug, AZD8055, which combines with Temozolomide to extend animal life by 30%. This discovery is leading to the start of a human phase I/II clinical trial as early as Spring 2015.

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Teenage baseball pitchers at risk for permanent shoulder injury

A new study published in Radiology found that teenage baseball pitchers who throw more than 100 pitches per week are at risk for acromial apophysiolysis, a condition characterized by incomplete fusion and tenderness at the acromion. The study also found that these pitchers are more likely to develop rotator cuff tears later in life.

A canary for climate change

Researchers found a strong correlation between Northern Hemisphere seabird diversity and environmental stressors, with puffins and auks serving as indicator species. The study suggests that climate change has shaped the geographic distribution and population size of existing species over the past 5 million years.

Rare genetic disease protects against bipolar disorder

Researchers at UMass Chan Medical School and UMMSM have identified a rare genetic pathway that protects against bipolar disorder. Decades of research in Old Order Amish families with a high incidence of both diseases revealed a significant negative association between Ellis van-Creveld syndrome and bipolar affective disorder.

A neurotic personality increases the risk of Alzheimer's disease

A study followed 800 women for nearly 40 years and found that those with neurotic tendencies were more likely to develop dementia conditions. The research suggests that long periods of stress can increase the risk of Alzheimer's disease, with shy women experiencing the highest increase in risk.

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Cambridge team explore power of thorium for improved nuclear design

A UK team is exploring the use of thorium as a fuel source for improved nuclear designs, which could provide safer and more cost-effective power generation. The Integral Inherently Safe Light Water Reactor (I2S-LWR) aims to reduce the size and enhance safety of conventional nuclear power stations.

Orphanage care linked to thinner brain tissue in regions related to ADHD

Research at the University of Washington shows that children who spent their early years in institutions have thinner brain tissue in areas related to attention and impulse control. The study provides strong evidence for a link between childhood neglect and ADHD, with significant differences seen in brain structure and behavior.

Testing parents' patience, while treating kids' problem behavior

Researchers at Marcus Autism Center studied delay discounting in parental decision-making, finding that parents' willingness to engage in treatment for their children's problem behavior decreases with longer delay. The study aimed to design treatment programs that families can stick to and help them adhere to.

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.

NASA sees Hurricane Gonzalo head toward Bermuda

Hurricane Gonzalo has intensified into a hurricane, with powerful thunderstorms and heavy rainfall. The storm is forecasted to become a major hurricane and make landfall on the island of Bermuda.

New forecasting method: Predicting extreme floods in the Andes mountains

A new forecasting method uses complex networks analysis to predict extreme rainfall events in the South American Andes. The approach, developed by an international team of scientists, can accurately forecast 90% of extreme rainfall events under El Niño conditions and 60% under other conditions.

$2.3 million NSF grant will fund MU study of math learning outcomes

The University of Missouri will receive a $2.3 million NSF grant to study the impact of elementary mathematics specialists on student learning outcomes. The research aims to improve math instruction by exploring the effectiveness of assigning specialist teachers to specific classrooms.

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Light-activated drug could reduce side effects of diabetes medication

Scientists at Imperial College London have created a light-activated drug that stimulates insulin release from pancreatic cells in response to blue light, potentially reducing side effects and improving blood sugar control. The drug, JB253, is reversible and can be switched on for short periods after meals.

Caribbean coral reef inhabitants critical in determining future of reefs

New research highlights the crucial role of bioerosion and carbonate production on Caribbean coral reefs. Species that live in and erode coral reefs, such as sea urchins and parrotfish, will significantly impact the future health of reefs. The study suggests a delicate balance between these processes is necessary to maintain reef health.

Fish oil supplements have little effect on irregular heartbeat

A new study by the Montreal Heart Institute found that high doses of fish oil supplements do not reduce atrial fibrillation, a common type of irregular heartbeat. The study also showed that fish oil supplements did not reduce inflammation or oxidative stress markers, which may explain their lack of efficacy.

What goes up must come down

Biologists at UC Riverside found that geckos reverse hind foot position to use the adhesive system as a brake and stabilizer when moving downhill. The study, published in Biology Letters, sheds light on gecko locomotion on non-level terrain and has applications in robotics.

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Collapsible wings help birds cope with turbulence

Birds use collapsible wing tucks to respond to turbulent air masses, reducing lift and minimizing jolting. Researchers found that this technique could potentially be used in micro air vehicles to maintain stability in windy conditions.

The neuroscience of holding it

Researchers found a strong connection between the pelvic floor muscles and the glutes in the brain, highlighting the interconnected nature of the body. This discovery may help identify the causes of chronic pelvic floor pain and improve treatments for incontinence.

Future computers could be built from magnetic 'tornadoes'

Researchers at the University of Sheffield have made a breakthrough in creating magnetic materials that can perform calculations, paving the way for more power-efficient computers. By harnessing the properties of magnetic vortex domain walls, they hope to develop smaller and faster logic gates.

Seniors run for the suburbs in their golden years

A Concordia University study found that seniors over 65 are more likely to move to suburbs than urban cores. This trend is driven by factors such as access to medical services and public transit infrastructure. As a result, researchers warn that this shift may have negative implications for seniors' quality of life.

Earth's magnetic field could flip within a human lifetime

A new study reveals that Earth's magnetic field reversed direction in less than 100 years, approximately 786,000 years ago. This rapid reversal could have significant effects on our planet, including disruptions to electrical grids and increased cancer rates due to the loss of protection from solar and cosmic particles.

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Energy drinks may pose danger to public health

Energy drinks have been linked to high caffeine levels, which can cause heart palpitations, hypertension, nausea, and vomiting. Mixing energy drinks with alcohol is also a significant risk factor for adverse health effects.

Scientists discover carbonate rocks are unrecognized methane sink

Researchers have found that carbonate rocks contain vast amounts of active microbes that take up methane, expanding our understanding of the Earth's methane process. The discovery could significantly impact our understanding of greenhouse gas accumulation and its role in climate change.

Thyroid carcinoma: Biomarker reveals cancer cause

A new biomarker, CLIP2, has been discovered that distinguishes between radiation-induced and sporadic thyroid carcinomas. The marker increases in both genetic activity and protein expression after radiation exposure.

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Immune cells in the liver drive fatty liver disease and liver cancer

A team of scientists led by Prof. Mathias Heikenwälder found that immune cells, particularly CD8+ T cells and NK T cells, play a crucial role in the development of fatty liver disease, non-alcoholic steatohepatitis (NASH), and liver cancer. The study suggests that an existing metabolic imbalance triggers the activation and migration of...

Frontline diagnosis and treatment of infant infections

A systematic review and meta-analysis found that frontline health workers can accurately diagnose bacterial infections in young infants, but access to antibiotics is limited. The study suggests that improving diagnosis and antibiotic access can help reduce neonatal deaths in low- and middle-income countries.

GoPro HERO13 Black

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New sequencing reveals genetic history of tomatoes

Researchers analyzed 360 tomato varieties and wild strains to understand the impact of domestication and breeding on cultivated tomatoes. The study identified genes responsible for larger fruit size and increased disease resistance, but also found areas of genetic uniformity that could be addressed in future breeding.

The Costco effect: Do consumers buy less variety at bigger stores?

A new study found that consumers purchase a greater variety of products when they are packaged individually rather than bundled together. Consumers tend to seek more options when choosing from single products, regardless of their preference. The study offers insight for retailers on how to influence consumer behavior and increase sales.

CWRU dental survey finds dental anxiety leads cause for moderate sedation

A new study by Case Western Reserve University found that moderate sedation is used to calm anxiety in over half of patients, with fear of needles being the second most common reason. The study provides a guideline for when to use moderate sedation, but raises concerns about endodontist training and certification.

Sky & Telescope Pocket Sky Atlas, 2nd Edition

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Are there enough fish to go around?

A study by researchers at the University of York found that domestic fish supplies have fallen to their lowest point in over 70 years, with only one fifth of recommended consumption levels met. The report also highlights the environmental costs of aquaculture and calls for sustainable production methods.

Photopharmacology: Optical control of insulin secretion

A team of scientists has successfully created a light-sensitive sulfonylurea compound that stimulates insulin release only in response to blue light. This breakthrough could lead to more precise control over blood sugar levels and reduce side effects associated with traditional diabetes treatments.

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.

Autophagy helps fast track stem cell activation

Researchers found that autophagy, a cellular recycling mechanism, helps activate muscle stem cells by inducing metabolic shifts and coping with increased biosynthesis demands. Inhibited autophagy delayed stem cell activation, highlighting SIRT1's regulatory role in this process.

Forced to be bad: When eating that chocolate cake is 'not our fault'?

A new study in Journal of Consumer Research found that consumers experience less guilt and higher vitality when they're not responsible for indulging in luxury products. The research suggests that allowing consumers to deflect their spending decisions can lead to increased happiness and well-being.

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.

Many older adults still homebound after 2011 Great East Japan Earthquake

A recent study found that approximately 20% of older adults in the affected area were homebound, highlighting a public health concern. The study's geographical analysis revealed that distances to retail stores and availability of hawker bus services significantly impacted the risk of being homebound.

Can big data make sense of climate change?

Researchers explore challenges and opportunities of mining large climate datasets with powerful analytical methods, scientific theory, and solid data engineering. By combining theory and Big Data, scientists aim to explain and predict important climate change phenomena.

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 light on the 'split peak' of alcohols

Researchers used RIXS to investigate liquid alcohols and found that split peaks originate from nuclear dynamics during the scattering process. This new understanding extends the technique's utility for studying complex materials.

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