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Nurses sleep less before a scheduled shift, hindering patient care and safety

Nurses sleep nearly an hour and a half less before work days compared to days off, which hurts patient care and safety, finds a new study.

Breakthrough in Zika virus vaccine

Researchers have made significant advances in developing a novel vaccine against Zika virus, which could potentially lead to global elimination of the disease.

People willing to risk near-certain death for an HIV cure

People willing to risk near-certain death for an HIV cure; protecting individuals and families in genetic and psychiatric research, considerations for including pregnant women in research.

Canadian tundra formerly covered in rich forest: Ancient plant fossil record shows

Canada's northernmost islands, Ellesmere and Axel Heiberg islands in Nunavut, were home to a vibrant, temperate forest 56 million years ago, according to fossil research.

When flowers reached Australia

University of Melbourne research has established when and where flowering plants first took a foothold.

Climate cycles and insect pests drive migration timing of reindeer's North American cousin

Biologists have discovered two unexpected drivers for migration timing that dispute long-held assumptions and provide insight into potential future effects of climate change on caribou. First, the start of migration is synchronized across North America and ti

To the brain, straight from the vein: IV treatment for TBI

A team of researchers has found that neural exosomes -- 'cargo' molecules within the nervous system that carry messages to the brain -- can minimize or even avert progression of traumatic brain injury when used as part of a new cell-to-cell messaging technolo

Scientists say you can change your personality

A review of recent research in personality science points to the possibility that personality traits can change through persistent intervention and major life events.

First identified comet to visit our solar system from another star

Comet 2I/Borisov is a mysterious visitor from the depths of space -- the first identified comet to arrive here from another star. Hubble images capture the comet streaking though our solar system and on its way back to interstellar space. It's only the secon

Ocean microbes: Novel study underscores microbial individuality

A single drop of seawater can contain a wide representation of ocean microbes from around the world -- revealing novel insights into the ecology, evolution and biotechnology potential of the global microbiome.

Deadly 'superbugs' destroyed by molecular drills

Motorized molecules activated by light target and drill through highly antibiotic resistant bacteria and kill them within minutes. The molecules can open bacteria to attack by drugs they previously resisted. The strategy could be applied to bacterial infectio

High-precision map of Antarctic ice sheet bed topography

Glaciologists have unveiled the most accurate portrait yet of the contours of the land beneath Antarctica's ice sheet -- and, by doing so, have helped identify which regions of the continent are going to be most vulnerable to the impact of future climate warm

Zika vaccine protects both mom and fetus, but mom needs a higher dose when pregnant

Researchers showed, for the first time, that a single, higher dose of vaccination to a pregnant mouse safely protects both her and her fetus from the Zika virus. The researchers found that a single, less potent dose was not enough to protect the fetus.

Deforestation, erosion exacerbate mercury spikes near Peruvian gold mining

Scientists have developed a model that can predict the amount of mercury being released into a local ecosystem from deforestation. The research could point toward ways to mitigate the worst effects of mercury poisoning in regions already experiencing elevate

Scientists discover key neural circuit regulating alcohol consumption

New research pinpoints a specific neural circuit that when altered caused animal models to drink less alcohol.

Chemists' calculations may advance cancer prediction

A computational study by chemists showed the dynamics of tumor formation don't necessarily correlate with clinical data on lifetime cancer risks. It suggests biomarkers may someday be able to help predict when mutations in cells will turn cancer-prone cells i

Newfound Martian aurora actually the most common; sheds light on Mars' changing climate

A type of Martian aurora first identified by NASA's MAVEN spacecraft in 2016 is actually the most common form of aurora occurring on the Red Planet, according to new results from the mission. The aurora is known as a proton aurora and can help scientists trac

Planet-mass objects in extragalactic systems

A research group is reporting the detection of extragalactic planet-mass objects in a second and third galaxy beyond the Milky Way after the first detection in 2018. With the existing observational resources, it is impossible to directly detect planet-mass ob

A way to 'fingerprint' human cells

Researchers have developed a method that allows them to identify single cells with a unique genomic profile from a tissue sample.

Importance of breastfeeding in preventing diabetes reaffirmed in rat study

New research published today shows that breastfeeding is crucial in preventing diabetes. The World Health Organization recommends breastfeeding as the sole source of nutrition for infants until six months of age, as this helps reduce child morbidity and morta

Flipping the script on novel cancer therapy leads to insights into lupus

In the last decade, scientists discovered that blocking a key regulator of the immune system helped unleash the body's natural defenses against several forms of cancer, opening up a new era of cancer immunotherapy. Now scientists have essentially flipped thi

Researchers discover brain circuit linked to food impulsivity

A team of researchers has now identified a specific circuit in the brain that alters food impulsivity.

Earth was stressed before dinosaur extinction

By measuring the chemistry of fossilized seashells collected in Antarctica, researchers discovered that Earth was already experiencing carbon cycle instability before the asteroid impact that wiped out the dinosaurs.

Mountain goats' air conditioning is failing, study says

A new study says Glacier National Park's iconic mountain goats are in dire need of 'air conditioning.'

State of shock: 200-year-old law about gas mixtures called into question

According to a new study led by a team from The University of New Mexico, centuries-old laws about the behavior of gas mixtures do not apply in the presence of shock waves. This finding could have potential impact on everything that involves mixtures of gase

Paleontology: Experiments in evolution

A new find from Patagonia sheds light on the evolution of large predatory dinosaurs. Features of the 8-m long specimen from the Middle Jurassic suggest that it records a phase of rapid diversification and evolutionary experimentation.

ALMA spots most distant dusty galaxy hidden in plain sight

Astronomers have spotted the light of a massive galaxy seen only 970 million years after the Big Bang. This galaxy, called MAMBO-9, is the most distant dusty star-forming galaxy that has ever been observed without the help of a gravitational lens.

Scientists convert plastics into useful chemicals using sunlight

Chemists have discovered a method that could turn plastic waste into valuable chemicals by using sunlight.

NASA's treasure map for water ice on Mars

Where should the first people on Mars land? A new paper provides a map of water ice believed to be as little as an inch (2.5 centimeters) below the surface of the Red Planet.

Deciphering the equations of life

Research has resulted in a set of equations that describes and predicts commonalities across life despite its enormous diversity. The new theory allows predictions for organisms that might not be well understood by science.

Trashed farmland could be a conservation treasure

Low-productivity agricultural land could be transformed into millions of hectares of conservation reserve across the world, according to new research. The research team proposed a new way of understanding the conservation value of ''uncontested lands'' - area

Unique data confirms why water turns brown

By analysing almost daily water samples taken from the same river from 1940 until today, researchers have confirmed their hypothesis that the browning of lakes is primarily due to the increase in coniferous forests, as well as rainfall and sulphur deposits.

Blueprint for nanomaterial development offers hope to newborns, elderly and busy doctors

Scientist hopes 'blueprint' leads to a new golden age of healthcare.

Illumination drives bats out of caves

Researchers have investigated how the illumination of bat caves affects the animals' behavior and whether the color of light makes a difference on their flight. Although red light irritates the small mammals somewhat less than white light, from the researcher

Isotope analysis points to prisoners of war, 1,400 years ago

Maya archaeologists found the bones of about 20 people at a water reservoir in the former Maya city of Uxul (Mexico). They had apparently been killed and dismembered about 1,400 years ago. Did these victims come from Uxul or other regions of the Maya Area?

'Invisible,' restricted horse racing therapy may leave a trail

Shockwave therapy is used in both horses and humans to speed healing, but it can also mask pain. For the first time veterinarians have identified several biomarkers of the treatment, the use of which is restricted in horse racing.

Reducing wildfire risks for better management and resource allocation

Managing future wildfire risk requires an interface between human decision processes and knowledge about climate trends related to fire, as well as humans' abilities to anticipate wildfire potential and mitigation approaches are critical.

Genetic brain disorder fixed in mice using precision epigenome editing

Using a targeted gene epigenome editing approach in the developing mouse brain, researchers reversed one gene mutation that leads to the genetic disorder WAGR syndrome, which causes intellectual disability and obesity in people. This specific editing was uniq

Lower BMI means lower diabetes risk, even among non-overweight people

Lower body mass index (BMI) is consistently associated with reduced type II diabetes risk, among people with varied family history, genetic risk factors and weight, according to a new study.

Tiny magnetic particles enable new material to bend, twist, and grab

Researchers have developed a soft polymer material, called magnetic shape memory polymer, that uses magnetic fields to transform into a variety of shapes. The material could enable a range of new applications from antennas that change frequencies on the fly t
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