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Science News Archive February 2019


Page 27 of 40

New role for death molecule

A team of researchers has found a novel function for the signaling molecule TRADD, which was previously considered dispensable. Without RIPK1 protein, having two copies of the TRADD gene or no copies results in cell death, while one copy promotes survival. This discovery sheds light on regulating cell death and survival pathways.

Celestron NexStar 8SE Computerized Telescope

Celestron NexStar 8SE Computerized Telescope combines portable Schmidt-Cassegrain optics with GoTo pointing for outreach nights and field campaigns.

Quantum strangeness gives rise to new electronics

Researchers have created a new breed of devices with unique properties, harnessing the power of quantum interference to fine-tune electrical conductance. By controlling quantum strangeness, they demonstrated that electrical conductance can be modulated over two orders of magnitude in single molecules.

How common are mental health disorders, treatment in children?

An estimated 7.7 million American children have at least one mental health disorder, with prevalence varying widely by state. Policy efforts are needed to improve treatment for children with mental health disorders, which affects up to 72% in some states.

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.

Neural circuits involved in obsessive-compulsive disorder

Researchers identified a key neural circuit involved in OCD, including connections between the basolateral amygdala and medial prefrontal cortex. Altering this circuit's activity was shown to impact OCD-like checking behavior, providing new insights into the disorder's pathophysiology.

Using big data to help manage global natural assets

A new approach using environmental big data helps identify effective conservation methods for managing natural capital, including forests and ponds. The study shows that measures to reduce chemicals used by farmers will be particularly effective in protecting freshwater environments in northern Britain.

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.

Sophisticated blood analysis provides new clues about Ebola, treatment avenues

Researchers analyzed blood samples from Ebola patients in Sierra Leone to understand the progression of the disease and potential treatments. The study identified a critical role for choline and microvesicles in the virus's progression, with survivors showing higher levels of phosphatidylcholines and healthy individuals having lower PS...

Rats in augmented reality help show how the brain determines location

Researchers studied rats' brain activity while navigating an augmented reality environment, finding that their internal map of location is constantly updated on a minute-by-minute basis. This process, called path integration, involves the use of external landmarks and self-motion cues to estimate distance and speed.

Apple iPhone 17 Pro

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

Working proteins make good use of frustration

Researchers surveyed known enzyme structures and found that active sites often have conflicting instructions, allowing for a balance between stability and functionality. This 'extended frustration' extends beyond the first shell of amino acids, supporting catalytic ability and enabling enzymes to modify target molecules efficiently.

Weyl goes chiral

Physicists at ETH Zurich have created acoustic metamaterials that interact differently with Weyl fermions of opposite chirality, a crucial aspect of particle physics. This discovery enables the manipulation of chiral channels, giving independent access to these particles in bulk systems.

Researchers examine puzzling sizes of extremely light calcium isotopes

Michigan State University researchers have measured the nuclei of three protein-rich calcium isotopes, revealing unique patterns in their charge radii. The findings, which challenge existing theories, are attributed to a better understanding of proton interactions at large distances outside the nucleus.

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.

Women less likely to receive geriatric care for emergency hip surgery

A Canadian Medical Association Journal study found that women are less likely than men to receive geriatric care during hospitalization for emergency hip surgery. Women from low-income neighborhoods and those with dementia were also excluded from receiving anesthesiology consultations before surgery.

Tuberculosis: Inhibiting host cell death with immunotherapy

Researchers have identified a new target protein that can inhibit Mycobacterium tuberculosis-induced cell death. Corticosteroids, already used in tuberculosis treatment, may support the healing process by inhibiting this pathway. This immunotherapy approach could reduce treatment duration and secondary complications associated with TB.

Breaking the vicious cycles of age-related diseases

Biologist Aleksey Belikov proposes that rapid progression of age-related diseases results from vicious cycles triggered by biochemical reactions. The study highlights the importance of interrupting these cycles in preventing disease progression.

Hard-to-detect antibiotic resistance an underestimated clinical problem

Researchers at Uppsala University and Emory University found that over a quarter of bacteria exhibit heteroresistance, making antibiotic treatment ineffective. The underlying genetic mechanism is often the spontaneous occurrence of gene amplifications, which can make it difficult to detect and study.

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.

How do protein tangles get so long in Alzheimer's?

Researchers at Ohio State University have found that tau protein aggregates in Alzheimer's disease can grow by joining end-to-end, forming longer filaments. This discovery helps explain the formation of toxic aggregates and may inform the development of new drug candidates.

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.

Next-generation optics in just two minutes of cooking time

Researchers at EPFL have developed a method to create dielectric glass metasurfaces in just a few minutes, using dewetting to produce flexible and ultra-thin photonic circuits. This breakthrough enables the creation of highly sensitive sensors and flexible optics for various applications.

A bioengineered factory for T-cells

Harvard engineers create injectable sponge-like gel to enhance T-cell production and diversity after bone marrow transplantation, improving the immune system's ability to fight infections. The device reduces graft-versus-host disease and increases T-cell recovery rates.

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.

Face transplant surgery can improve speech in victims of severe face trauma

A new case study from New York University finds that face transplant surgery can significantly improve speech production in patients who have experienced severe facial trauma. The study used optical tracking technology to examine the effects of the procedure on facial movements and speech intelligibility, with remarkable results.

How your smartphone is affecting your relationship

A growing body of research suggests that smartphones can negatively impact face-to-face social interactions, leading to feelings of ignored, annoyed, or pushed away. The constant access to text messaging and social media makes it easier for people to disclose personal information and respond to others in their large social networks.

Alternative stable states on coral reefs

Research in Moorea, French Polynesia, reveals that intense herbivory is required to prevent seaweed establishment and that seaweed-dominated patch reefs are resilient to moderate disturbances. The findings suggest that preventing shifts to seaweed should be a focus of reef management.

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.

Workshop: Getting women due credit -- on the paper

Recent studies indicate that women and scholars from underrepresented groups often don't receive proper authorship credit, due to biases in leadership positions and collaborations. Experts will provide guidance on navigating power dynamics and promoting responsible authorship decisions at the AAAS Annual Meeting.

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.

Sand from glacial melt could be Greenland's economic salvation

Researchers have identified a potential economic opportunity for Greenland by exploiting its abundant river sediment, which has a market value equivalent to half of the country's GDP. Sand export could provide a new revenue stream, but it would require careful assessment of environmental impact and collaboration with local authorities.

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.

New tuberculosis drug may shorten treatment time for patients

A new experimental antibiotic AN12855 has been shown to be more effective against tuberculosis than isoniazid, a decades-old drug. In mouse studies, the new drug demonstrated a much lower tendency to develop resistance and remained in tissues where Mycobacterium tuberculosis bacteria reside for longer, killing them more effectively.

Researchers develop flags that generate energy from wind and sun

Scientists at the University of Manchester have created flags that can harness both wind and solar energy to generate electricity. The innovative flags use piezoelectric strips and flexible photovoltaic cells to produce power, making them suitable for powering remote sensors and small electronics.

Scientists discover oldest evidence of mobility on Earth

Ancient fossils found in Gabon date back 2.1 billion years, revealing a multicellular organism that moved through the mud. The discovery pushes the history of locomotion in complex organisms to over 1.5 billion years earlier than previously thought.

Fluke 87V Industrial Digital Multimeter

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

How to classify high blood pressure in pregnancy?

Researchers analyzed medical records from nearly 3,000 pregnant women to find that the ACOG criteria identifies those at highest risk for complications. The study suggests obstetric care providers need more information about the implications of 'high normal' blood pressure during pregnancy.

Almost 2,000 unknown bacteria discovered in the human gut

Researchers identified nearly 2000 novel bacterial species in the human gut using computational methods, revealing significant geographical diversity and underscoring the importance of collecting data from underrepresented populations to achieve a comprehensive understanding of the human microbiome.

New device simplifies measurement of fluoride contamination in water

A new device can accurately measure fluoride concentrations in water using a novel material that changes color when exposed to fluoride ions. This simple, on-site testing method is cheaper and more accessible than current methods, enabling virtually anyone to monitor fluoride levels in drinking water.

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.

Developing a flight strategy to land heavier vehicles on Mars

Researchers have developed a new flight strategy to land heavier vehicles on Mars by eliminating parachutes and using larger rocket engines. The approach optimizes the lift vector to minimize propellant usage, enabling vehicles to carry more payload while reducing costs.

Protein released from fat after exercise improves glucose

Researchers at Joslin Diabetes Center found that exercise causes dramatic changes to fat, releasing factors into the bloodstream that improve glucose tolerance. The study identified transforming growth factor beta 2 as an adipokine released from fat that has positive effects on health.