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Science News Archive 2021


Page 271 of 510

New potential therapy for fatty liver disease

Researchers have found that leptin can help mobilize extra fat in the liver, reversing conditions like nonalcoholic steatohepatitis (NASH) in patients with partial lipodystrophy and/or low leptin levels. Leptin therapy showed promise in improving insulin sensitivity and body weight.

Feedback on cafeteria purchases helps employees make healthier food choices

A randomized clinical trial tested an automated, personalized intervention to improve health in hospital staff, finding that employees who received feedback on their cafeteria purchases made healthier choices. The study's results suggest that food purchasing data can be leveraged for delivering health promotion interventions at scale.

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.

Efficient metal-free near-infrared phosphorescence films

Researchers in China developed new NIR dyes based on the energy gap law, achieving efficient near-infrared phosphorescence without metals. The dyes demonstrated moderate to high performance, with TBPB@PVA films showing the best results.

Arctic rotifer lives after 24,000 years in a frozen state

Researchers found that Bdelloid rotifers can persist for at least 24,000 years in the Siberian permafrost and survive. The study suggests that these tiny animals have a mechanism to shield their cells and organs from harm at extremely low temperatures.

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.

Are heavy metals toxic? Scientists find surprising new clues in yeast

Researchers have compiled the most complete library yet of lanthanides and their potential toxicity by exposing baker's yeast to lanthanide metals. The study found that lanthanides interrupt cell-signaling pathways, disrupting calcium-binding sites in endocytosis and ESCRT machinery.

New research in protein sequencing poised to transform medicine

A new overview article explores innovative strategies for protein sequencing at the single-cell and single-molecule level, enabling critical insights into cell-to-cell variation in organs and tissues. This breakthrough may lead to routine clinical applications for diagnostic and treatment purposes, fulfilling personalized medicine.

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.

Wider applications for Vortex Fluidic Device

Researchers have discovered the VFD's capabilities in controlling chemical reactivity, materials processing, and probing self-organised systems. The device has shown promise in synthesizing various compounds and could lead to more efficient and environmentally friendly production methods.

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.

ALPALGA: The search for mountain snow microalgae

Researchers have established the first map of snow microalgae distribution along elevation, revealing different species thrive at varying altitudes. The study aims to answer fundamental questions about these organisms' survival, blooms, and impact on snowmelt.

Exploring an epidemic's meaning from the perspective of nursing

An article by Julie A. Fairman, PhD, RN, FAAN, explores the meaning of epidemics from a nursing perspective, extending Charles Rosenberg's 1992 work on the AIDS epidemic. This approach highlights the importance of understanding the social constructs and meanings attached to epidemics through the experiences of nurses and patients.

High blood lead levels found in indigenous peoples in Peruvian Amazonia

A study published in Environment International found high levels of lead in indigenous people living in Peruvian Amazonia, with the highest concentrations found near oil extraction areas. The research, led by Cristina O'Callaghan-Gordo, highlights the need for urgent action to address the potential health effects on these communities.

Snowflake morays can feed on land, swallow prey without water

A new study shows that snowflake morays can grab and swallow prey on land thanks to an extra set of jaws in their throats, allowing them to utilize different environments for food resources. This unique feeding mechanism enables at least one species of moray to feed on land without relying on water.

Fragility fractures cost European health care systems €56.9 billion annually

A new report by the International Osteoporosis Foundation reveals that fragility fractures result in 4.3 million cases and €56.9 billion in healthcare costs each year in Europe. The report also highlights significant service provision gaps, with only half of women at high fracture risk receiving therapy for osteoporosis.

Apple iPhone 17 Pro

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

Being social generates larger genomes in snapping shrimp

A study by Columbia University researchers found that eusocial snapping shrimp have larger genomes due to an accumulation of 'jumping' genes called transposable elements. This discovery has significant implications for understanding the relationship between genome evolution and social behavior in various species, including humans.

New drug-formulation method may lead to smaller pills

A team of MIT chemical engineers has developed a new method for incorporating hydrophobic drugs into tablets or other formulations, which allows for higher drug loading and potentially smaller dosages. This could lead to improved patient compliance and effectiveness, especially for people who have difficulty swallowing pills.

Clever biomolecular labelling enables identification of immune cells

Researchers at the University of Göttingen have developed a non-toxic method to label peptides and investigate their mechanism of action. The new technique allows for efficient screening of molecules important for the adaptive immune system, which can help fight infections and cancer.

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.

A breakthrough in the physics of blood clotting

Researchers at Georgia Institute of Technology and Emory University have made a significant discovery in the physics of blood clotting. By modeling the dynamics of clot contraction, they found that platelets work best when not in total sync with each other, leading to a 90% decrease in clot volume.

Anthropogenic forest use in pre-Columbian Peru

A study analyzing charcoal and phytolith records in northeastern Peru suggests that indigenous societies helped maintain forest integrity over the last 5,000 years. Material remains of ancient cultures, such as ceramics and stone tools, were absent from soil samples, supporting the findings.

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.

Toshiba announces breakthrough in long distance quantum communication

Toshiba has demonstrated record distances for quantum communications using a novel 'dual band' stabilisation technique, enabling QKD over 600km. The technique sends two optical reference signals to minimise phase fluctuations on long fibres, resulting in constant optical phase stability even after propagation through hundreds of km.

Social inequality in energy use

Researchers analyzed fine-scale energy use data to reveal significant racial and income disparities in urban energy use. Block groups with higher poverty rates exhibit significantly higher annual energy consumption, particularly for temperature-sensitive applications.

Researchers make new charge storage mechanism discovery

Researchers at the University of Liverpool have made a groundbreaking discovery in charge storage mechanisms for calcium-air batteries. The new finding, known as trapped interfacial redox, introduces a novel mechanism that can be harnessed to create highly sustainable battery technologies.

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.

New research examines the science behind superfoods

A new study found that consuming mangos can help lower chronic disease risk by improving fasting glucose levels and reducing inflammation. Researchers also discovered that adding herbs and spices to the diet may help lower blood pressure, while ginger, cinnamon, and turmeric supplements were linked with improved cholesterol benefits.

Postpartum mental health visits 30% higher during COVID-19 pandemic

Mental health visits for new mothers skyrocketed 30% during the COVID-19 pandemic, with increased rates observed in the first 3 months after giving birth. The study suggests that virtual care may have removed barriers to postpartum mental health support, enabling more people to seek care.

Cutting food waste alone won't solve world's nutritional needs

A new study using a computational model found that cutting food waste would provide enough protein and energy to feed the growing population but fall short in terms of micronutrients like calcium, iron, and vitamin E. Researchers emphasize the need for attention to essential vitamins and minerals to address global nutritional needs.

Fluke 87V Industrial Digital Multimeter

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

Pre-Columbian fire and water management in Bolivia

Researchers analyzed sediment cores revealing that pre-Columbian societies used controlled fires and water management techniques from at least 3,500 years ago. This predates changes caused by cattle and new technologies in the region.

First glimpse of brains retrieving mistaken memories observed

Researchers studied rats in mazes to observe brain cell activation during correct and incorrect memory recall. They found similar patterns of cell activation, but with different timing and energy levels, suggesting a link between memory disorders like Alzheimer's and faulty retrieval.

Origins of meteorite delivery to Earth

Researchers recovered 10,000 extraterrestrial chrome-spinel grains to establish a paleoflux record of meteorites falling to Earth. The results suggest that meteorite delivery has been largely stable over the past 500 million years.

New research shows trend toward unhealthy eating during pandemic

A study of over 2,000 US adults found that the pandemic has led to a decrease in the consumption of healthy foods such as vegetables and whole grains. The researchers suggest that this shift may be more pronounced among certain populations, including women, black and Latino participants, and those who gained weight during the pandemic.

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.

Popularity runs in families

A Rice University study, likened to the movie 'The Truman Show,' found that genetic variation plays a significant role in determining social positions within groups of cloned fruit flies. The researchers measured social interactions between identical clones in separate enclosures under different environmental conditions.

New connector for sustainable structures on Earth and in space

Romain van Wassenhove has created a sustainable bamboo connector that can be used to make modular structures out of sustainable materials. His invention is EU patent-protected and has been published in Composite Structures, a leading journal for composite materials and their applications.

40 years on: Discrimination still linked with HIV and AIDS

A new study by Flinders University researchers found that people living with HIV/AIDS face significant discrimination in their families, communities, and even among healthcare providers. This stigma can lead to concealment of the condition, self-isolation, and poor access to healthcare services.

Meta Quest 3 512GB

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

How a Vietnamese raw pork snack could help us keep food fresh, naturally

Researchers at RMIT University have discovered a bacteria-killing compound in Nem Chua that can destroy more dangerous bacteria, potentially leading to a safe and all-natural food preservative. The compound is effective against a wide range of bacteria, including those that cause life-threatening diseases like Listeria.

Societal divisions could hinder EU climate policy

A new study by Silvia Weko reveals that political ideology plays a larger role than party preferences in shaping attitudes towards climate policy among Europeans. Cosmopolitan attitudes are more positive towards climate action, while communitarian minds are more concerned with energy security and economic development.

An 'atlas' of the brain's choroid plexus across the lifespan

A new resource provides a cellular and spatial map of the choroid plexus, revealing its constituent cell types, gene expression profiles, and molecular makeup. The atlas shows differences in tissue architecture, immune activity, and vascular arrangement across different life stages, offering insights into brain development and immunity.

Smartphone use associated with unhealthy eating and overweight in teens

A study of over 53,000 Korean adolescents found that moderate smartphone use is associated with unhealthy eating behaviors, including a higher intake of junk food and fewer fruits and vegetables. Teens who spent more than 3 hours per day on their phone were significantly more likely to be overweight or obese.

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.

Monash researchers make fundamental advance in understanding T cell immunity

Researchers from Monash University have made a fundamental advance in understanding how T cells become activated when encountering pathogens. The study found that T cells need to recognize pathogens in a particular orientation to receive a strong activating signal, revealing a critical mechanism for effective T cell immunity.