Plant probe could help estimate bee exposure to neonicotinoid insecticides
Bee populations are declining, and neonicotinoid pesticides continue to be investigated -- and in some cases banned -- because of their suspected role as a contributing factor. However, limitations in sampling and analytical techniques have prevented a full understanding of the connection. Now, researchers describe a new approach to sample neonicotinoids and other pesticides in plants, which could explain how bees are exposed to the substances.
Marijuana use may not make parents more 'chill'
Sorry, marijuana moms and dads: Using pot may not make you a more relaxed parent, at least when it comes to how you discipline your children. A study of California parents found that current marijuana users administered more discipline techniques of all kinds to their children on average than did non-users. That includes everything from timeouts to, in some cases, physical abuse.
Living longer or healthier? Genetic discovery in worms suggests they can be separated
Gene identified in worms controls how resources are allocated for stress resilience, longevity and fertility.
Predators' fear of humans ripples through wildlife communities, emboldening rodents
Giving credence to the saying, 'While the cat's away, the mice will play,' a new study indicates that pumas and medium-sized carnivores lie low when they sense the presence of humans, which frees up the landscape for rodents to forage more brazenly.
Older adults: Daunted by a new task? Learn 3 instead
Learning several new things at once increases cognitive abilities in older adults, according to new research. After just 1.5 months learning multiple tasks in a new study, participants increased their cognitive abilities to levels similar to those of middle-aged adults, 30 years younger. Control group members, who did not take classes, showed no change in their performance.
Newly-Discovered Rocky Exoplanet Has Three Red Suns
Astronomers using NASA’s Transiting Exoplanet Survey Satellite (TESS) have discovered a terrestrial planet orbiting a star in the triple-star system LTT 1445. LTT 1445, also known as TIC 98796344, TOI 455, L 730-18 or BD-17 588, is a hierarchical trio of mid-to-late M-dwarfs (red dwarf stars) approximately 22.5 light-years away. The newly-discovered world orbits LTT [...]
Detoxification Enzyme Linked to Obesity and Fatty Liver Disease
A team of scientists at Clemson University has discovered that CYP2B — a key enzyme involved in metabolism, particularly in the detoxification of chemicals in the body — plays a role in obesity and fatty liver disease, especially in males. The team, led by Clemson University’s Professor William Baldwin, used a novel mouse model developed [...]
Joshua trees facing extinction
They outlived mammoths and saber-toothed tigers. But without dramatic action to reduce climate change, new research shows Joshua trees won't survive much past this century.
A new tool for data scientists and biologists and more
A new computational tool is able to quickly identify the hidden affiliations and interrelationships among groups/items/persons with greater accuracy than existing tools.
Vast majority of dietary supplements don't improve heart health or put off death, study finds
In a massive new analysis of findings from 277 clinical trials using 24 different interventions, researchers say they have found that almost all vitamin, mineral and other nutrient supplements or diets cannot be linked to longer life or protection from heart disease.
Are fertility apps useful?
Researchers have carried out an analysis of the largest datasets from fertility awareness apps. Analyzing data from 200,000 users of the apps Sympto and Kindara, they have been able to make population-level observations regarding user demographics, tracking behavior patterns and accuracy in measuring menstrual health and ovulation.
Anti-starvation trick that saved our ancestors may underlie obesity epidemic
A molecular 'trick' that kept our ancient ancestors from starving may now be contributing to the obesity epidemic, a new study finds.
Limits on pot fishing can result in win-win for fishermen and marine wildlife
The first major study into the impact of inshore potting for crab and lobster within a Marine Protected Area has found that in areas of low potting intensity the industry is operating in a way that had little impact on seabed species or economically-important shellfish.
Higher iron levels may boost heart health -- but also increase risk of stroke
Scientists have helped unravel the protective -- and potentially harmful -- effect of iron in the body.
Rugby-style tackling may have lower force of impact than football-style tackling
The style of tackling used in rugby may be associated with a lower force of impact than the style used in football, according to a preliminary study of college athletes.
Insurance linked to hospitals' decision to transfer kids with mental health emergencies
A national study finds differences in the decisions to admit or transfer children with mental health emergencies based on the patients' insurance type. Children without insurance are more likely to be transferred to another hospital than those with insurance.
Salt regulation among saltmarsh sparrows evolved in 4 unique ways
A new study finds that different bird species in the same challenging environment -- the highly saline ecosystem of tidal marshes along ocean shores -- were able to evolve unique species-specific ways to address the same problem.
Researchers build transistor-like gate for quantum information processing -- with qudits
Researchers have built what could be a quantum version of a transistor -- with qudits.
Novel therapy administered after TBI prevents brain damage
Could a therapy administered 30 minutes after a traumatic brain injury prevent damage that leads to seizures and other harmful effects? Researchers think so.
Researchers track how cats' weights change over time
Researchers have accessed data on more than 19 million cats and have learned that most cats continue to put on weight as they age.
Top science news
A Better Way to Manage Your Period? Try the Menstrual Cup, Scientists Say
The reusable, bell-like devices unfold in the vagina to stanch menstrual flow. They are as effective as sanitary pads and tampons, according to a new analysis — and less expensive.