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Science News Archive February 2014


Page 5 of 30

Brain cell activity regulates Alzheimer's protein

New research from Washington University School of Medicine finds that increased brain cell activity boosts brain fluid levels of tau protein, a hallmark of Alzheimer's disease. The study suggests that brain cells may be secreting tau when they send signals, potentially leading to the spread of disease.

Apple iPhone 17 Pro

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

Scientists demonstrate first contagious airborne WiFi virus

Researchers at the University of Liverpool have created a WiFi virus called 'Chameleon' that can spread rapidly between homes and businesses, evading detection by encryption and passwords. The virus exploits weaknesses in WiFi networks to propagate quickly across densely populated areas.

Carbon dating uncovers forged Cubist painting

Physicists used accelerator mass spectrometry to analyze the canvas, revealing a level of radioactive carbon found in 1959, years after Léger's death. This study provides conclusive evidence that the painting is a forgery.

Unhealthy attachments

The study used atomic force microscopy and surface forces apparatus to measure the strength of adhesion between healthy and diseased myelin bilayers. Researchers found that healthy myelin adsorbs proteins better, maintaining optimal insulation and nerve function.

Fluke 87V Industrial Digital Multimeter

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

FDA approves lipodystrophy drug metreleptin

The US FDA has approved metreleptin as a treatment for generalized lipodystrophy, a condition characterized by near-complete absence of fat tissue. Leptin replacement therapy has been shown to control severe insulin resistance and lower triglyceride levels in patients with severe generalized lipodystrophy.

Increasing brain acidity may reduce anxiety

An animal study suggests that activating acid-sensing ion channels called ASIC1a in the brain's emotional control center can reduce anxiety-like behavior. The findings highlight a potential new mechanism for controlling fear and anxiety, paving the way for novel therapies.

Technique to create holes in graphene could improve water filters, desalination

Researchers at MIT developed a new method to create controlled-size holes in graphene sheets, enabling the production of highly selective filters for improved desalination. The graphene filters can sustain higher water flow rates than conventional membranes, making them suitable for efficient desalination and nanofiltration applications.

3-D printer creates transformative device for heart treatment

Researchers at Washington University in St. Louis have developed a 3D elastic membrane that can precisely measure temperature, mechanical strain, and pH, and deliver treatment for arrhythmia and heart attack prediction. The device has the potential to revolutionize heart treatment by providing high-definition diagnostics and therapy.

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.

Study finds 2 biodegradable mulches to be suitable polyethylene alternatives

Researchers evaluated three biodegradable plastic mulch products and found two to be suitable alternatives to traditional polyethylene mulches. BioAgri¹ and Crown 1 mulches performed well in terms of crop yield, weed suppression, and overall function, making them viable options for organic production in the Pacific Northwest.

Study shows mentally ill more likely to be victims, not perpetrators, of violence

A study by North Carolina State University researchers found that nearly one-third of adults with mental illness are at risk of being victims of violence, while those who commit violence tend to do so in residential settings. The study also highlights the need for stronger public health interventions to protect individuals at risk

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.

Mother to child HIV transmission at record low in the UK

The UK's mother to child HIV transmission rate has dropped to an all-time low of 0.46%, according to a study published in the journal AIDS. The decline is attributed to earlier initiation of antenatal combination antiretroviral therapy and increased uptake of antenatal HIV screening.

The importance of (experimental) design

Researchers found that birds' choice of group size may be influenced by experimental design, rather than genetics. The study's conclusions are challenged due to errors such as regression to the mean and spatial fallacy.

Report details multiple commercial uses of wireless sensor networks

Commercial horticulture operations are adopting wireless sensor networks to monitor and control irrigation events, leading to improved soil moisture management and enhanced crop yields. The technology has been successfully implemented at three nurseries in Georgia, showcasing its potential for widespread adoption in the industry.

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.

Real time forecast of Hurricane Sandy had track and intensity accuracy

Researchers at Penn State used a real-time convection-permitting hurricane analysis and forecasting system to accurately predict Hurricane Sandy's path, intensity, and rainfall. The system compared favorably to operational global models, showcasing its potential for improving storm prediction.

PFC exposure may spark metabolic changes in overweight children

Overweight children exposed to higher levels of perfluorinated chemicals show early signs of metabolic syndrome, a cluster of risk factors for heart disease, stroke, and diabetes. The study highlights the potential public health hazard of these industrial chemicals.

Eliminating maternal mortality could extend life expectancy in reproductive ages

A new study by Johns Hopkins Bloomberg School of Public Health found that eliminating maternal mortality worldwide would result in a gain of over 0.6 years in life expectancy. This improvement is significant, as it would take place during the most productive ages of human life, carrying non-trivial socio-economic implications.

Vitamin A may help boost immune system to fight tuberculosis

Researchers at UCLA discovered that vitamin A and a specific gene assist the immune system by reducing cholesterol levels in TB-infected cells, allowing lysosomes to kill bacteria effectively. This finding may lead to new treatment approaches for tuberculosis.

Discovery of a 'conductor' in muscle development

Researchers at IRCM identified a critical receptor in muscle cell fusion, which could lead to new therapies for muscular diseases like myopathies and muscular dystrophies. The discovery sheds light on the complex process of muscle development and regeneration.

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.

Tiger lily heights controlled with flurprimidol preplant bulb soaks

Researchers found that flurprimidol preplant bulb soaks effectively controlled stem elongation of 'Orange Tiger' tiger lily, making it suitable for retail sales. The study also showed that residual carryover effects of flurprimidol were not significant a year after application.

Scientists twist sound with metamaterials

Researchers have created an acoustic field rotator, a device that manipulates sound waves, using metamaterials. The device can rotate sound waves in a manner similar to electromagnetic or liquid wave counterparts, which could improve the operation of medical ultrasound machines and enhance image quality.

New study finds concussion-related health problems in retired football players

A new study published in Journal of Neurotrauma found that retired professional football players who suffered repeated concussions had reduced levels of growth hormone, gonadotropin, and testosterone, leading to disorders such as metabolic syndrome and impaired quality of life. The study suggests that repeat concussion may elicit pitui...

Research links risky behaviors of gambling and sex

A study by Columbia University's Mailman School of Public Health found that African-American youth who gambled before age 18 were more likely to engage in high-risk sexual behaviors, leading to unintended consequences. The research suggests a potential link between gambling and sex behaviors in this demographic.

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.

Vitamin D deficiency may compromise immune function

Researchers found a significant association between vitamin D deficiency and biomarkers for inflammation in older Irish adults. Vitamin D plays a crucial role in maintaining immune function, and low levels may compromise the body's ability to fight off infections and diseases.

Stigma 'key deterrent' in accessing mental health care

A new study from King's College London reveals that mental health stigma is a major deterrent for people seeking help, with up to 75% of those with disorders not receiving treatment. The study found that fear of disclosing a mental health condition and concerns about confidentiality were common barriers.

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.

Taming microbes to combat antibiotic resistance

Researchers at LA BioMed are developing novel anti-infectives designed to disarm methicillin-resistant S. aureus (MRSA), reducing its resistance to antibiotics and promoting effective treatment outcomes.

Saudi Arabian camels carry MERS virus

A nationwide survey in Saudi Arabia found that three-quarters of camels tested had evidence of MERS-CoV infection. The study established direct camel-to-human transmission is possible and likely, highlighting the need for control measures to contain the spread of the disease.

Glycerol phenylbutyrate reduces hepatic encephalopathy events

The study found that Glycerol phenylbutyrate significantly reduced hepatic encephalopathy events, hospitalizations, and ammonia levels compared to placebo. GPB's direct ammonia-lowering agent properties suggest its therapeutic potential for patients with cirrhosis and hepatic encephalopathy.

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.

Psychological side-effects of anti-depressants worse than thought

A recent study published in Psychiatry Research found that nearly half of people taking anti-depressants reported experiencing psychological problems, such as suicidal feelings, sexual difficulties, and emotional numbness. The research highlights the need for better awareness and disclosure about these side-effects.

UT part of $140 million White House advanced manufacturing initiative

The University of Tennessee at Knoxville is leading a national research effort focused on developing new lightweight materials for fuel-efficient cars and aircraft. The initiative aims to improve vehicle performance, safety, and energy efficiency by reducing material weight while maintaining strength.

Georgia Tech project ensures 'what you see is what you send'

Researchers at Georgia Tech have developed a prototype software called Gyrus, which takes extra steps to prevent malware from sending spam emails and instant messages. The software captures user intent and interactions with an application, verifying that the resulting output can be mapped back to the user's intention.

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 uncovers why almost winning is just as good for some gamblers

A new study found that gamblers' brains exhibit similar increases in theta activity to wins and near-misses, particularly in the insula and orbitofrontal cortex. This response is associated with gambling severity and susceptibility to problem gambling. The research suggests that brain responses to near-misses resemble those to actual w...

NASA's SDO shows images of significant solar flare

A powerful solar flare peaked at X4.9-class on Feb. 24, 2014, as observed by NASA's Solar Dynamics Observatory (SDO). The flare emitted giant flashes of light and caused disturbing effects in the layer where GPS and communications signals travel.

Strawberries lower cholesterol

A Spanish Foundation for Science and Technology study found that consuming strawberries reduced total cholesterol, LDL (bad) cholesterol, and triglycerides in healthy volunteers. The antioxidant properties of strawberries were also linked to improved cardiovascular health parameters.

New record set for data-transfer speeds

Researchers at IBM have achieved a record-breaking data transfer speed of 64 gigabits per second (Gb/s) using standard non-return-to-zero modulation on a multimode optical fiber. The technology has the potential to meet growing needs of servers, data centers and supercomputers through the end of this decade.

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.

Where have all the codfish gone?

Researchers at the University of Hawaii are studying copepods to understand their response to global climate change. They have published a transcriptome for the key North Atlantic copepod Calanus finmarchicus, which provides insights into population changes and may help predict future declines.

Using stolen computer processing cycles to mine Bitcoin

A team of researchers at the University of California - San Diego examined over 2,000 pieces of malware used by Bitcoin mining operations and found that they made at least 4,500 Bitcoins over two years. The study highlights how malware operators use low-cost and no-investment infrastructure to mine Bitcoin.

Does solitary confinement fuel more crime?

A Michigan State University study refutes critics' claims that solitary confinement leads to increased recidivism rates. In reality, young drug offenders with prior convictions and disciplinary charges are more likely to re-offend.

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.

Novel optical fibers transmit high-quality images

Engineers at the University of Wisconsin-Milwaukee have developed novel optical fibers that can transmit high-quality images, rivaling those of current commercial endoscopy imaging fibers. The fibers utilize a unique architecture that traps multiple beams of light, resulting in improved resolution and contrast.

System that automatically fills gaps in programmers' code gains power

Researchers have developed a new version of Sketch that can handle complex synthesis tasks more efficiently, enabling it to produce working code in milliseconds. The system treats program synthesis as a search problem and finds a way to shrink the search space, making it more suitable for real-world applications.

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.

Vinegar kills tuberculosis and other mycobacteria

Acetic acid in vinegar effectively kills drug-resistant tuberculosis bacteria and other stubborn mycobacteria. A 6% solution of acetic acid for 30 minutes reduces TB mycobacteria to undetectable levels, posing a low-risk alternative to toxic disinfectants.