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Science News Archive December 2021


Page 23 of 33

Fish help control crown-of-thorns starfish numbers on Great Barrier Reef

A new study from Australian Institute of Marine Science reveals that reef fish such as emperors, tropical snappers, and rockcods play a crucial role in controlling crown-of-thorns starfish numbers on the Great Barrier Reef. By removing these fish species, the abundance of coral-eating starfish increases.

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.

Twitter reveals dynamics of stories surrounding Trump’s presidency

A computational analysis of billions of tweets has uncovered high-resolution timelines of the major stories surrounding Trump's presidency from 2016 to 2021. The study found that turbulence in these stories varied over time, with dominant narratives emerging for longer periods during certain periods.

Impaired-driver sensor could pave the way for safer vehicles

Researchers have developed heat-resistant piezoelectric sheet sensors that can detect driver impairment, including drowsiness and sudden illnesses. These sensors, attached to seats, can signal a future smart car to take action, potentially preventing accidents.

Reimagining immunity in the eye

Researchers found immune cells in lens trying to fix damage and responding to long-lasting inflammation. Immune cells integrate into lens capsule, increasing invasion with disease progression, contradicting decades of scientific understanding.

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.

Defense or repair: How immune cells are controlled during wound healing

Researchers discovered that wound macrophages undergo different metabolic programs to coordinate tissue repair, including the use of reactive oxygen radicals for blood vessel growth. Macrophages also utilize a different type of mitochondrial exchange for anti-inflammatory and reparative functions in late-stage wound healing.

One in five future thyroid cancers linked to excess weight

A study by University of New South Wales has found that one in five future thyroid cancers in Australia is attributable to current levels of overweight and obesity. The prevalence of obesity has doubled in the last two decades, with 75% of Australian men and 60% of women being overweight or obese.

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.

The impact of drugs on gut microbes is greater than we thought

Researchers found that many medications, including antibiotics and cardiometabolic drugs, can significantly alter the human gut microbiome. The study revealed a complex relationship between drug dosage and microbiome impact, highlighting the need for personalized treatment strategies.

Home health care workers face challenges with their own health

A recent study found that nearly a quarter of home health care workers rate their general health as fair or poor, with 1 in 5 reporting poor mental health. Factors contributing to poorer health include low household income, cost barriers, and history of depression.

I remember how to control my body, therefore, I am.

A study published in iScience reveals that distorted perception of bodily self-consciousness can be predicted by different kinds of memories. The researchers found that the recovery of body ownership was associated with a fast memory process, while agency recovery was mainly linked to a slow memory process.

Apple iPhone 17 Pro

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

The paradox of big data spoils vaccination surveys

Researchers from Harvard University and others have found that large-scale COVID-19 vaccination surveys were off by up to 17 percentage points due to systematic biases in the data. The 'Big Data Paradox' highlights how big data sets can minimize one type of error while magnifying another, leading to misleading results.

Anxiety drugs and antidepressants trigger post-surgery delirium

A new Australian study has found that taking anxiety drugs like nitrazepam and antidepressants before hip or knee surgery can lead to postoperative delirium. The risk is particularly high for older patients, highlighting the need to adjust medication regimens before undergoing elective procedures.

Stem-cell breakthrough could preserve diverse livestock breeds

A team of scientists led by Vimal Selvaraj has developed a way to preserve the genetic diversity of fast-disappearing native cattle breeds using stem cells. This technology could be used to clone extinct breeds or to produce animals with desirable traits, such as disease resistance and extreme weather tolerance.

Talk therapy by US psychiatrists declined by half since 1990s

A study found that the percentage of psychiatrist visits involving psychotherapy dropped to 21.6% between 1996 and 2016, with rural and Black/Hispanic patients experiencing significant declines. The shift towards medication management is attributed to economic factors and a national shortage in psychiatric services.

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.

Devising new meat alternatives with 3D printing — and cocoa butter

Researchers have created a new combination of plant-based ingredients tailored for 3D printing meat alternatives, incorporating cocoa butter derived from chocolate. The formulation successfully mimics the texture and nutritional value of real meat, with potential benefits for animal welfare and environmental sustainability.

Nature or nurture: How does an animal get its microbiome?

Researchers have found that sharks acquire their microbiome through three methods: the mother passing on microbes to her offspring via egg case, social interactions with other sharks, and recruiting microbes from their environment. This study provides new insights into the development of animal microbiomes and their importance in under...

A new understanding of mental illness

A new study from McGill University suggests that a combination of biological, psychological, and social factors can predict early onset psychiatric disorders with over 90% accuracy. The study identifies temperament, trauma, and dopamine as the key factors in this prediction.

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.

Black children overlooked in scar tissue disorder tests, study says

A new study suggests that Black children are more likely to be affected by a rare immune disease that causes scar tissue to form on skin and internal organs. The research found that one in five cases of the disease involve children under 16 years old, with over 90% of these being Black.

Novel computer simulation method can accelerate COVID-19 drug discovery

Researchers developed a novel computer simulation method that can analyze key proteins in the reproductive cycle of SARS-CoV-2, promising to accelerate the search for bioactive compounds against COVID-19. The method estimates a reduction in research time from two to three years to under a year.

Celestron NexStar 8SE Computerized Telescope

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

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.

Transforming materials with light

Scientists create a process called 'coherent optical engineering' that can dramatically change the properties of materials without generating heat. The breakthrough uses lasers to alter electron energy levels in a way that is reversible and free from unwanted heating.

Inventory of the world belowground: Using DNA to study fungal communities

A new study published in Applications in Plant Sciences highlights the negative effects of clearcutting on mycorrhizal fungi, showing less diversity in formerly deforested areas. High-throughput sequencing reveals over 300 distinct fungal lineages in soil and root samples, shedding light on ecosystem health.

How do dolphins learn to live along the coast?

Researchers found that dolphins have adapted to coastal life independently due to ancestral genes, which provide benefits for living in different environments. These genetic variations can be learned and passed down through generations.

Sky & Telescope Pocket Sky Atlas, 2nd Edition

Sky & Telescope Pocket Sky Atlas, 2nd Edition is a durable star atlas for planning sessions, identifying targets, and teaching celestial navigation.

Catalyst technology converts methane greenhouse gas into useful, valuable chemicals

Researchers at Iowa State University have developed a catalyst technology that converts methane into ethane and ethylene with high efficiency and selectivity. The new technology uses platinum-based MXene structures to break down methane bonds, producing valuable chemicals without emitting the most abundant greenhouse gas, carbon dioxide.

Study shows preterm birth risk most strongly linked to pre-eclampsia

A study published in the British Journal of Obstetrics and Gynaecology found that women who experienced pre-eclampsia in both pregnancies were 17 times more likely to have another preterm birth. The research also showed a three-fold higher risk of subsequent pre-eclampsia after a preterm birth.

Meta Quest 3 512GB

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

These tiny liquid robots never run out of juice as long as they have food

Researchers at Lawrence Berkeley National Laboratory have developed water-walking liquid robots that can retrieve and deliver precious chemicals autonomously. The robots use chemistry to control buoyancy and do not require electrical energy, making them ideal for applications such as chemical synthesis and drug delivery.

Disparities in blood pressure control

A study of 16,000 adults with high blood pressure found significant racial disparities in blood pressure control, linked to unequal treatment intensification and missed appointments. The research highlights the need for targeted interventions to address these inequities and improve outcomes for underserved populations.

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.

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.

Several protein biomarkers protect against disease development

A recent study identified several protein biomarkers that protect against the development of inflammatory diseases such as psoriasis and osteoarthritis. The researchers used Mendelian Randomization to determine whether high levels of these proteins are associated with a lower risk of disease.

Up to our NECs in it: in-depth genomic analysis of a rare carcinoma

A comprehensive genomic analysis reveals the genetic basis of neuroendocrine carcinoma of the gastrointestinal system, a rare cancer that is highly resistant to treatment. The study identifies key biological processes underlying the development of the disease, including structural variants, methylation events, and gene fusions.

How Hydra animals regenerate their own heads

Researchers have identified the specific genetic regulatory elements responsible for Hydra head regeneration, showing that dynamic chromatin remodeling and transcription factor motifs play a crucial role. This discovery sheds light on the complex developmental processes involved in this remarkable regenerative ability.

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.

Does air pollution reduce the benefits of physical activity on the brain?

A new study found that air pollution in areas with high levels of particulate matter and nitrogen dioxide can negate the benefits of vigorous physical activity on certain markers of brain disease. This includes reduced white matter hyperintensities and gray matter volume, indicating poorer brain health.

Seeing shapes

Carlos Ponce is studying the parts of the visual system that analyze shapes, using macaque monkeys as a model. He combines computational models with electrophysiology experiments to understand how neurons process visual information.

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.