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Science News Archive July 2019


Page 8 of 41

Strange bacteria hint at ancient origin of photosynthesis

Researchers found similar structures in rare bacteria and modern cyanobacteria, suggesting the process is older than thought. This challenges the traditional view that oxygenic photosynthesis evolved from anoxygenic photosynthesis a billion years ago.

Apple iPhone 17 Pro

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

Exposure to common chemicals in plastics linked to childhood obesity

A study published by The Endocrine Society found that exposure to bisphenol S (BPS) and bisphenol F (BPF) in plastics and canned foods may contribute to childhood obesity. Children with higher levels of these chemicals in their urine were more likely to have obesity compared to those with lower levels.

When a fix for one vision problem causes another

Researchers discovered that monovision can cause significant misperceptions of distance and 3D direction, particularly with moving objects. By analyzing the effects of blur differences on visual processing, they found that a darker lens can cancel out the negative impact of monovision.

Current guides for starting infants on solid food may lead to overfeeding

A computer-simulated study suggests that standard solid food feeding guides from hospitals and baby-formula makers may not provide accurate recommendations for infants. Following these guidelines can lead to overweight infants as early as 9-11 months old, with the Similac guide producing the healthiest results.

Fluke 87V Industrial Digital Multimeter

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

Preschool teachers ask children too many simple questions

A study found that only 24% of preschool teacher questions were challenging, while most responses from children were correct due to the simplicity of the questions. Teachers should aim for a balance between easy and difficult questions to push children's development forward.

Shark hotspots under worldwide threat from overfishing

A recent study found that shark hotspots, crucial for multiple species, overlap with longline fishing vessels at alarming rates. This poses a 'double whammy' for sharks, accelerating declines in abundance and potentially threatening their survival.

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.

Clemson research suggests a practical use for regret, hindsight

A study by Robin Kowalski found that many people think about advice they would give their younger selves multiple times per week. This mental exercise can help individuals conceptualize their ideal self and overcome regret. The research also revealed that areas of education, self-worth, and relationships are commonly focused on when it...

Mapping cells in the 'immortal' regenerating hydra

Scientists at UC Davis have traced the fate of hydra's cells, revealing how three lines of stem cells become nerves, muscles or other tissues. This high-resolution map will help researchers understand regulatory gene networks in place early in evolution.

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.

Detox pathway extends lifespan of the worm C. elegans

A mutant worm with a change in one mitochondrial gene produces more ROS, but lives twice as long due to a detoxification pathway. The study reveals that this pathway is conserved throughout the animal kingdom and essential for longevity.

Virginia Tech researchers lead breakthrough in quantum computing

A team of Virginia Tech researchers has advanced quantum simulation by devising an algorithm that can more efficiently calculate the properties of molecules on a noisy quantum computer. The breakthrough enables simulating molecular properties, which can lead to advances in materials improvement and drug discovery.

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.

To become, or not to become... a neuron

Researchers uncover a molecular mechanism controlling neural stem cell development, enabling precise differentiation into neurons. The discovery sheds light on brain developmental processes and has implications for stem cell biology and cancer research.

Trapping female mosquitoes helps curb chikungunya virus

Researchers found that CDC-developed Autocidal Gravid Ovitrap (AGO) traps successfully protected people from chikungunya virus infection in Puerto Rican communities. The study showed a significant reduction in CHIKV seropositivity among participants in intervention areas with AGO traps compared to those without traps.

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 reveals how HIV infection may contribute to metabolic conditions

A single viral factor released from HIV-infected cells impairs cholesterol metabolism in uninfected cells, triggering inflammation and contributing to the development of diseases such as dementia, heart disease, and diabetes. Targeted treatment may provide a longer and healthier life for people living with HIV/AIDS.

Meta Quest 3 512GB

Meta Quest 3 512GB enables immersive mission planning, terrain rehearsal, and interactive STEM demos with high-resolution mixed-reality experiences.

Little helpers for the rainforest

Scientists have shown that monkeys disperse seeds from primary forests to secondary forests, leading to increased biodiversity. Over 20 years of study, researchers found that moustached and black-fronted tamarins were responsible for dispersing over 10% of the seeds, which germinated and survived for at least a year.

Working memory is structured hierarchically

A team of researchers at HSE University found that working memory stores objects and their features independently, making it easier to remember single-object information. This hierarchical structure suggests that working memory can store multiple types of information simultaneously.

How HIV infection may contribute to wide-ranging metabolic conditions

A study published in PLOS Pathogens found that HIV-infected cells release a viral protein called Nef, impairing cholesterol metabolism and triggering inflammation in uninfected bystander cells. This impairment causes the formation of excessive lipid rafts and triggers inflammation, potentially contributing to various co-morbidities ass...

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.

How the pufferfish got its wacky spines

Researchers have identified the genetic basis of pufferfish spines, which share developmental pathways with other vertebrates. The study reveals that the spines evolved as a unique adaptation for protection during inflation.

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.

Research by NJIT faculty uses big data to track and treat drug abuse

Researchers created a community-focused drug abuse monitoring system called DrugTracker, which analyzes social media posts and geospatial data to detect trends and changes in the landscape. The system helps organizations identify drug abuse risk behaviors and allocate resources effectively.

Antibiotic-resistant genes found in London's canals and ponds

Antibiotic-resistant genes were found in London's freshwater sources, with the River Thames having the highest levels. The genes come from human and animal waste, which contaminates water bodies through wastewater discharge. Researchers are now experimenting with slow sand filtration to remove these genes.

NAFTA's demise puts Canada in the 'penalty box,' study shows

A new study from the University of Notre Dame reveals that eliminating NAFTA would reduce standards of living in all three countries. Canada's per capita income loss is expected to be 2.11%, nearly two times that of Mexico's 1.15% and eight times that of the US' 0.27%.

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.

Worm pheromones protect major crops

Researchers at Boyce Thompson Institute discovered that ascaroside compounds from nematodes can protect rice, wheat, corn, and soybeans from numerous pathogens. The compounds helped increase resistance against bacterial, fungal, viral, and oomycete pathogens in major crops.

Hidden genetic variations power evolutionary leaps

Researchers found that cryptic genetic variation enables bacteria to evolve green fluorescent proteins with increased diversity. The discovery could improve directed evolution techniques for developing new biomolecules for medical and other applications.

Researchers discover new cause of cell aging

Scientists have found that senescent cells stop producing nucleotides, a class of chemicals essential to keep cells young. The discovery could pave the way for new drugs to eliminate aged cells and promote healthy aging.

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.

Brains work in sync during music therapy -- study

A new study by Anglia Ruskin University reveals that brain activity synchronises between patients and therapists during music therapy sessions. The breakthrough uses brain hyperscanning to track subtle changes in emotional processing, offering a more precise understanding of the therapeutic impact.

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.

NASA finds one burst of energy in weakening Depression Dalila

NASA's Aqua satellite detected a small area of strong thunderstorms with cold cloud top temperatures, enough to maintain Tropical Depression Dalila's tropical cyclone classification. The depression is forecasted to weaken and become a post-tropical remnant low in the coming days.

US emergency medical services underrepresented of women and minorities

A new study found that women and racial/ethnic minorities are underrepresented in US emergency medical services, with less than a quarter of newly certified paramedics being female. The gaps are more pronounced among paramedics, who provide critical invasive interventions and make complex decisions.

Signals from skin cells control fat cell specialization

Research at Kobe University reveals that protein secretions by skin cells, keratinocytes, regulate the differentiation of subsurface skin fat cells into white or brown adipose tissue. The study found that suppressing growth factor proteins BMP2 and FGF21 can decrease white fat cell numbers and increase brown fat cells.

T cells trim the fat and protect against obesity

A new study reveals that T follicular helper cells shield mice from obesity by promoting IgA antibody production, which suppresses lipid absorption. This discovery highlights the immune system's role in regulating the gut microbiome and offers potential for novel treatments against metabolic diseases.

Apple Watch Series 11 (GPS, 46mm)

Apple Watch Series 11 (GPS, 46mm) tracks health metrics and safety alerts during long observing sessions, fieldwork, and remote expeditions.

Supercomputers use graphics processors to solve longstanding turbulence question

Researchers at Imperial College London used supercomputers and graphics processors to simulate turbulent fluid flow and solve a longstanding question about disturbance dissipation. Their results lead to the development of new empirical models for turbulence, improving engineering designs in fields like wind turbines and Formula 1 cars.

Researchers discover the science behind giving up

A study published in Cell reveals that large complex neurotransmitters, such as neuropeptides, have a robust effect on animal behavior by regulating the ventral tegmental area. The findings could lead to helping people find motivation when they are depressed and decreasing motivation for drugs in substance-abuse disorders.

Physicists from IKBFU create metallic alloy for magnetic refrigerator

Researchers at Immanuel Kant Baltic Federal University have developed a new metallic alloy that can be used in magnetic refrigeration technology, offering an environmentally friendly alternative to traditional refrigerants like freon. The manganese-arsenic alloy shows promising results for solid-state cooling at room temperature.

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.