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Science News Archive July 2015


Page 32 of 34

The sting in dengue's tail

Singapore researchers have identified specific molecular interactions in the dengue virus genome that allow it to manipulate human immune defenses and spread more efficiently. These genetic changes increase the virus's capacity for epidemic outbreaks, highlighting the need for targeted surveillance and response strategies.

New technique maps elusive chemical markers on proteins

Researchers developed a new method to map critical chemical tags on proteins, enabling better understanding of protein formation and function. The technique allows pinpointing phosphates' location and studying unstable amino acids like histidine.

Discovery points to a new path toward a universal flu vaccine

Researchers at Rockefeller University discovered a new mechanism to create more effective and efficient vaccines against the flu virus. By harnessing modified antibodies, they were able to elicit broad protection against multiple strains of the virus.

Seafaring spiders depend on their 'sails' and 'anchors'

Researchers found that spiders adopt postures to control wind direction while on water, allowing them to 'sail' in turbulent conditions. This behavior compensates for the risks of landing on water after uncontrolled flights, enabling spiders to survive in aquatic environments.

Apple iPhone 17 Pro

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

Genetic testing in kids is fraught with complications

The American Society of Human Genetics recommends genetic testing for children only when results could have an immediate impact on healthcare decisions. Predictive testing is particularly complicated and may affect family relationships and mental health. ASHG advises against direct-to-consumer DNA testing, especially in healthy children.

Special focus on advanced nonlinear control of hypersonic flight vehicles

Recent advancements in hypersonic flight dynamics and control are presented, including anti-disturbance control, composite dynamic surface control using neural networks, and sliding mode control. These methods enhance tracking performance and convergence speed, addressing system uncertainty and actuator dynamics.

Supercharging stem cells to create new therapies

A new method has been discovered to culture stem cells, allowing them to grow twice as fast and be more efficient in regulating the immune response. This breakthrough could lead to more effective treatments for transplant patients by reducing side effects of current immunosuppressant drugs.

The clock is ticking: New method reveals exact time of death after 10 days

Researchers at the University of Salzburg developed a new method to estimate time since death in humans, even up to 240 hours after death, by analyzing muscle proteins and enzymes in pigs. Initial results are promising for human samples, offering a simple and efficient approach with advantages over current methods.

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.

Water to understand the brain

Researchers from Université de Genève found that activated neurons swell due to massive entry of water, providing a new insight into brain functioning. This discovery enables the detection of cellular mechanisms behind brain activity, allowing for more accurate localization and pathologies diagnosis.

Cause of acute liver failure in young children discovered

A team of researchers has discovered a link between acute liver failure and mutations in the NBAS gene, which affects cellular transport processes. The study found that these mutations can disrupt protein packing and transport within cells, leading to metabolic imbalances in the liver.

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.

Seahorse tails could inspire new generation of robots

A recent study published in the journal Science suggests that seahorse tails' square prism shape offers a functional advantage over cylindrical shapes. This unique design could inspire new forms of armor and lead to the development of search-and-rescue robots with improved control and versatility.

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.

Elastic gel to heal wounds

A team of bioengineers at Brigham and Women's Hospital developed a new protein-based gel that mimics the properties of elastic tissue when exposed to light. The gel can be controlled in its swelling and strength, making it suitable for various applications such as regenerating cells or creating a barrier over wounds.

The bioprinted 'play dough' capable of cell and protein transfer

Scientists have developed a novel technique for bioprinting at ambient temperatures, creating a paste capable of incorporating cells and proteins. This innovative material can sustain stresses similar to cancellous bone and is being explored as an injectable bone defect filler or scaffold for larger reconstructions.

Clemson research: Bad sleep habits linked to higher self-control risks

Clemson University researchers found that poor sleep habits increase the risk of impulsive desires, inattentiveness, and questionable decision-making. Better sleep habits can contribute to improved health and worker performance, as well as reduced risks of addictions and excessive spending.

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.

Long-term memories are maintained by prion-like proteins

Research by Eric Kandel's lab shows prion-like proteins, like those causing mad cow disease, are critical for maintaining long-term memories in mice. These proteins work by creating aggregated structures that turn on protein synthesis necessary to maintain the memory.

International consortium to study plant fertility evolution

An international consortium is developing a comprehensive understanding of fertilization in flowering plants using comparative genomics and molecular biology techniques. The research aims to provide insights into the origins of fertilization and its role in improving crop productivity.

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.

Melanoma mutation rewires cell metabolism

Researchers discovered that a melanoma mutation activates ketogenesis enzyme HMG-CoA lyase, turning on fat breakdown in cancer cells. This rewiring of metabolism may explain why V600E mutation is common in melanomas and provide alternative strategies to existing drugs targeting the mutation.

Oregon experiments open window on landscape formation

A team of researchers led by UO doctoral student Kristin E. Sweeney conducted a series of experiments in small sandboxes to witness the formation of ridges and valleys in real-time. The study provides new insights into the competition between erosion driven by runoff and soil movement on hillsides, revealing how climate change may impa...

Nanospiked bacteria are the brightest hard X-ray emitters

Researchers at Tata Institute of Fundamental Research created bacteria to emit intense hard x-ray radiation. By using nanostructured bacterial cells and silver nanoparticles, they achieved a 10,000-fold increase in x-ray emission compared to plain glass slides.

Will climate change put mussels off the menu?

Rising sea temperatures and decreased salt concentration are predicted to significantly impact mussel health, favoring disease-causing bacteria that produce toxins. This could threaten the rapidly-growing tropical shellfish industry in South-West India, which is already under pressure from urbanization.

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.

Do you really think you're a foodie?

A nationwide survey of 502 women found that adventurous eaters rated themselves as healthier eaters and were more physically active. They also reported being more likely to have friends over for dinner and were less concerned with the healthfulness of their food.

Online reader comments can provide valuable feedback to news sites

Researchers found that readers value different journalistic traits and hold expectations for journalists beyond traditional values. Readers often criticize news outlets using human adjectives like 'sanctimonious' and 'lazy'. News leaders should understand how readers anthropomorphize their organizations to better present their brands.

Traders' hormones' may destabilize financial markets

A study suggests that cortisol and testosterone levels in traders can lead to increased risk-taking behavior, potentially destabilizing financial markets. Researchers found that artificially increasing hormone levels shifted investment towards riskier assets.

New guidelines recommend brain stents to fight strokes in certain patients

The American Heart Association/American Stroke Association recommends the use of brain stent retrievers in certain patients undergoing acute ischemic strokes. The devices can restore blood flow and reduce stroke damage when treated promptly, making them a valuable option for carefully selected patients.

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.

Launch of first European nanomedicine characterization lab

The European Nanomedicine Characterization Laboratory (EU-NCL) aims to bring safe and efficient nanotherapeutics faster to patients. EU-NCL partners with international reference facilities to harmonize analytical protocols, providing a trans-disciplinary testing infrastructure for preclinical characterization.

Why the seahorse's tail is square

A team of researchers found that a seahorse's square, overlapping tail segments provide better armor and gripping abilities compared to traditional cylindrical tails. The squared shape absorbs more energy before permanent failure begins and creates more contact points with surfaces.

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.

Can autism be measured in a sniff?

Researchers discovered that children with autism spectrum disorder exhibit a unique sniffing pattern when exposed to pleasant or unpleasant odors, allowing for accurate classification with high accuracy. The study suggests that olfactory tests could be used as an early indicator of ASD, potentially leading to more effective intervention.

Vanderbilt research could lead to vaccines and treatment for dengue virus

Researchers have determined the structure of a human monoclonal antibody that strongly neutralizes a type of the potentially lethal dengue virus in an animal model. This finding could lead to effective therapies and vaccines against dengue, a complex of four distinct mosquito-borne viruses causing illness and death in the tropics.

ASHG issues position statement on genetic testing in children and adolescents

The American Society of Human Genetics has issued a position statement on the ethical, legal, and psychosocial implications of genetic testing in children and adolescents. The statement addresses various issues related to genetic testing, including predictive testing, whole-genome sequencing, and implementation challenges.

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.

Two new studies on the connection between hypertension and cognitive decline

New studies reveal that hypertensive individuals experience higher rates of cognitive decline compared to non-hypertensive populations. Additionally, African Americans with hypertension bear a disproportionate burden of disability and mortality associated with the condition. These findings underscore the importance of effective managem...

Research reveals how the human brain might reconstruct past events

Researchers at University College London have discovered that when we try to remember a single aspect of an event, our brain reconstructs the entire episode, including details we weren't consciously aware of. This process is made possible by the hippocampus, which associates different aspects of the event and enables pattern completion.

Commonly prescribed drugs affect decisions to harm oneself and others

Healthy people given citalopram were willing to pay more to prevent harm to themselves or others than those on placebo drugs, highlighting the serotonin-enhancing antidepressant's effect on moral decision-making. In contrast, levodopa made healthy people more selfish and less altruistic.

Patient access to cardiovascular devices delayed by bureaucracy

The introduction of innovative techniques and devices has led to declining death rates from cardiovascular disease, but reimbursement systems are hindering their adoption. Delays in allocating reimbursement codes are limiting investment in future device therapies.

Boys more likely to have antipsychotics prescribed, regardless of age

A recent NIH-funded study found that approximately 1.5% of boys aged 10-18 received an antipsychotic prescription in 2010, with attention deficit hyperactivity disorder (ADHD) being the most common diagnosis among youth ages 1-18. The study also highlighted a significant increase in antipsychotic use with age, beginning at 0.11% for ch...

Rigol DP832 Triple-Output Bench Power Supply

Rigol DP832 Triple-Output Bench Power Supply powers sensors, microcontrollers, and test circuits with programmable rails and stable outputs.

Could your smartphone one day tell you you're pregnant?

Researchers developed a smartphone sensor using surface plasmon resonance to detect biomolecules, including those for pregnancy testing and diabetes monitoring. The sensor is tiny, affordable, and comparable in sensitivity to current equipment.

UH Health leader inducted into National Optometry Hall of Fame

Earl L. Smith III, OD, was inducted into the National Optometry Hall of Fame for his long-lasting impact on the optometric profession through his academic and administrative work at UH College of Optometry. He has made significant contributions to vision science research and education.

Research letter: Indoor tanning rates drop among US adults

Indoor tanning rates declined significantly among US adults from 2010 to 2013, with notable decreases in younger age groups and certain health conditions. The decrease is attributed to increased awareness of indoor tanning's harms, including its link to cancer risk.

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.

Single-celled predator evolves tiny, human-like 'eye'

A single-celled marine plankton has evolved a tiny eye-like structure that resembles the complex eyes of humans and other animals. The ocellloid contains sub-cellular organelles similar to those found in multicellular eyes, potentially aiding prey detection through light shift detection.

Income-tax earnings data give more accurate picture of value of college degree

A new study using Social Security Administration's personal income tax data confirms the value of college education by measuring individual lifetime earnings over 20 years. The study estimates significant long-term economic benefits of college education, with men earning an average of $840,000 more over 50 years than high school gradua...

Improving insulation materials, down to wetting crossed fibers

Researchers study the behavior of liquids trapped between two parallel fibers, discovering that spreading is controlled by three key parameters: liquid amount, fiber orientation, and distance between them. This insight could lead to cheaper materials with better insulation properties.

Fluke 87V Industrial Digital Multimeter

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

Europe, Siberia and in between: Caucasian populations of non-biting midges

Researchers found interesting morphological distinctions in the mouthparts of larvae and new chromosome rearrangements in the second chromosome of <i> Ch. bernensis</i>. The study suggests a possible adaptive explanation for the geographical distribution of the species, with different genotypic combinations dominating at various sites.