Current White Dwarfs News and Events

Current White Dwarfs News and Events, White Dwarfs News Articles.
Sort By: Most Relevant | Most Viewed
Page 1 of 25 | 1000 Results
Binary stars are all around us, new map of solar neighborhood shows
A UC Berkeley doctoral student has mined the most recent Gaia survey for all binary stars near Earth and created a 3D atlas of 1.3 million of them. The last local survey included about 200 binary pairs. With such census data, astronomers can conduct statistical analyses on binary populations. For pairs that contain white dwarfs, it's possible to determine the age of their main-sequence companion, and thus of any exoplanets around them. (2021-02-22)

Stem cells provide hope for dwindling wildlife populations
A paper recently published in the scientific journal Stem Cells and Development shares an important advancement in conservation -- one that may make the difference between survival and extinction for wildlife species that have been reduced to very small population sizes. Using fibroblast cells that have been preserved in San Diego Zoo Global's Frozen Zoo®, scientists have been able to generate induced pluripotent stem cells of northern and southern white rhinoceroses. (2021-02-22)

Eating more refined grains increases risk of heart attack & death: SFU researcher
A new study published in The British Medical Journal by researchers including SFU health sciences professor Scott Lear found consuming a high number of refined grains, such as croissants and white bread, is associated with a higher risk of major cardiovascular disease, stroke and death. (2021-02-19)

The messenger matters in safe gun storage, suicide prevention education
Law enforcement and those in the military, rather than doctors and celebrities, are the most preferred messengers on firearm safety, a Rutgers study found. (2021-02-18)

COVID-19 associated with leukoencephalopathy on brain MRI
According to an open-access article in ARRS' American Journal of Roentgenology (AJR), COVID-19-related disseminated leukoencephalopathy (CRDL) represents an important--albeit uncommon--differential consideration in patients with neurologic manifestations of coronavirus disease (COVID-19). (2021-02-17)

All the colours of the dingo: not just a yellow dog
Animals assumed to be dingo-dog hybrids based on their coat colour and culled may have been pure dingoes, a study involving UNSW finds. (2021-02-16)

Vaporised crusts of Earth-like planets found in dying stars
Remnants of planets with Earth-like crusts have been discovered in the atmospheres of four nearby white dwarf stars by University of Warwick astronomers, offering a glimpse of the planets that may have once orbited them up to billions of years ago. (2021-02-11)

Hubble uncovers concentration of small black holes
Scientists were expecting to find an intermediate-mass black hole at the heart of the globular cluster NGC 6397, but instead they found evidence of a concentration of smaller black holes lurking there. New data from the NASA/ESA Hubble Space Telescope have led to the first measurement of the extent of a collection of black holes in a core-collapsed globular cluster. (2021-02-11)

New study finds climate change shrinks and shifts juvenile white shark range
Unprecedented sightings of juvenile white sharks at the northern end of Monterey Bay signal a significant shift in the young white sharks' range. Researchers conclude the northward range shift demonstrates the young sharks are being subjected to a loss of suitable thermal habitat, meaning water temperatures within their preferred temperature range are becoming harder to find. (2021-02-09)

Astronomers offer possible explanation for elusive dark-matter-free galaxies
A team led by astronomers at the University of California, Riverside, has found that some dwarf galaxies may today appear to be dark-matter free even though they formed as galaxies dominated by dark matter in the past. (2021-02-09)

Rare blast's remains discovered in Milky Way's center
Astronomers may have found our Galaxy's first example of an unusual kind of stellar explosion. This discovery, made with NASA's Chandra X-ray Observatory, adds to the understanding of how some stars shatter and seed the universe with elements critical for life on Earth. (2021-02-08)

Deadly white-nose syndrome changed genes in surviving bats
Scientists have found genetic differences between bats killed by white-nose syndrome and bats that survived, suggesting that survivors rapidly evolve to resist the fungal disease, according to a Rutgers-led study with big implications for deciding how to safeguard bat populations. (2021-02-04)

Father's early-life exposure to stress associated with child's brain development
The FinnBrain research of the University of Turku has demonstrated for the first time that the stress the father has experienced in his childhood is connected to the development of the white matter tracts in the child's brain. Whether this connection is transmitted through epigenetic inheritance needs further research. (2021-02-04)

The benefits of reading outdoors
Investigators demonstrate that image luminance has opposite effects on the contrast sensitivity of cortical pathways signaling lights than darks. It impairs luminance discrimination for the brightest stimuli of the scene while improving it for the darkest stimuli, a mechanism that is needed to efficiently sample natural scenes. (2021-02-02)

Minority patients miss out on cystic fibrosis drugs due to genetic test limitations
There is an impassioned debate taking place in medicine on whether race-based considerations should be a factor in research, diagnoses, or treatments. (2021-02-02)

Researchers illustrate the need for anti-racism in kidney care, research
There is a growing awareness of systematic inequality and structural racism in American society. Science and medicine are no exception, as evidenced by historical instances of discrimination and overt racism. In a perspective piece in the Journal of the American Society of Nephrology, researchers from Boston University School of Medicine (BUSM), take an honest look at how the current practice of nephrology (kidney medicine) may have elements rooted in racist ideologies. (2021-01-29)

Scientists developed energy saving ceramic phosphors for high power LED systems
Materials scientists of Far Eastern Federal University (FEFU), in collaboration with an international research team, have advanced the design of composite ceramic materials (Ce3+:YAG-Al2O3), i.e. solid-state light converters (phosphors) that can be applied in ground and aerospace technologies. The LED systems based on the developed materials to save 20-30 percent more energy compared to commercial analogues. A related article was published in Materials Characterization. (2021-01-26)

Race plays a role in children's food allergies
Black children have significantly higher rates of shellfish and fish allergies than white children, confirming that race plays an important role in how children are affected by food allergies, researchers at Rush University Medical Center have found. (2021-01-26)

NASA's Roman mission will probe galaxy's core for hot Jupiters, brown dwarfs
NASA's Roman Space Telescope will conduct a microlensing survey to reveal worlds that are similar to the planets in our solar system. Now, a new study shows that the same survey will also unveil more extreme planets and planet-like bodies in the heart of the galaxy, thanks to their gravitational tug on the stars they orbit. (2021-01-25)

Vermont's BIPOC drivers are most likely to have a run-in with police, study shows
Examining more than 800,000 police stops in Vermont between 2014 to 2019, researchers confirm that Vermont authorities stop, ticket, arrest and search Black drivers at a rate far beyond their share of the state's total driving population. (2021-01-18)

Mapping our sun's backyard
Astronomers have curated the most complete list of nearby brown dwarfs to date thanks to discoveries made by thousands of volunteers participating in the Backyard Worlds citizen science project. The list and 3D map of 525 brown dwarfs -- including 38 reported for the first time -- incorporate observations from a host of astronomical instruments including several NOIRLab facilities. The results confirm that the Sun's neighborhood appears surprisingly diverse relative to other parts of the Milky Way Galaxy. (2021-01-14)

Striped or spotted? Winds and jet streams found on the closest brown dwarf
Using high-precision brightness measurements from NASA's TESS space telescope, astronomers found that the nearby brown dwarf Luhman 16B's atmosphere is dominated by high-speed, global winds akin to Earth's jet stream system. This global circulation determines how clouds are distributed in the brown dwarf's atmosphere, giving it a striped appearance. (2021-01-07)

Mental health of UK women, ethnic minorities especially affected during pandemic
In the UK, men from ethnic minorities and women may have experienced worse mental health declines than White British men, according to a study published January 6, 2021 in the open access journal PLOS ONE by Eugenio Proto and Climent Quintana-Domeque of institutions including the University of Glasgow and the University of Exeter, UK. (2021-01-06)

Scientists discover mutations associated with early onset dementia
Scientists at Trinity College Dublin today announced a significant advance in our understanding of an early onset form of dementia that may also progress our understanding of conditions such as Alzheimer's disease. Adult onset Leukoencephalopathy with axonal Spheroids and Pigmented glia (ALSP) is an ultra-rare condition that manifests initially with psychiatric and behavioural changes in patients followed by a rapid progression of dementia in the third or fourth decade of life. (2020-12-22)

Optoelectronic devices that emit warm and cool white light
A single semiconducting material can produce white light by emitting light across the visible spectrum. (2020-12-21)

How does immersive reality affect implicit racial bias?
A University of Barcelona study shows that when the virtual scenario is affectively negative, implicit bias increases, and even the illusion of owning a virtual body is lessened. Researchers argue that negative affect prevents the formation of new positive associations with black, and distress leads to disownership of the virtual body. Results challenge virtual reality as an empathy machine and may have implications in the way virtual reality should be used to reduce implicit biases. (2020-12-17)

Can white dwarfs help solve the cosmological lithium problem?
For the first time, lithium has been identified and measured in the atmosphere of a white dwarf. The finding, reported by the University of North Carolina at Chapel Hill, provides clues for what's become of the lithium expected from the Big Bang. (2020-12-17)

COVID-19 cuts into college students' drinking
When college campuses closed in the spring due to the COVID-19 pandemic, the quantity of alcohol consumed by students decreased significantly if they went from living with peers to living with parents, according to a new report in the Journal of Studies on Alcohol and Drugs. (2020-12-16)

A pair of lonely planet-like objects born like stars
An international research team led by the University of Bern has discovered an exotic binary system composed of two young planet-like objects, orbiting around each other from a very large distance. Although these objects look like giant exoplanets, they formed in the same way as stars, proving that the mechanisms driving star formation can produce rogue worlds in unusual systems deprived of a Sun. (2020-12-16)

BAME babies at highest risk of Vitamin D deficiency
A third of all babies and half of Black, Asian and Minority Ethnic (BAME) babies are vitamin D deficient, a large study of 3000 newborn's in the West Midlands has shown. (2020-12-16)

Crowdfunding can affect consumer product choices -- especially when the products do good
A new study from the UBC Sauder School of Business shows that people will pay far more for social good items when they're crowdfunded. (2020-12-16)

The Lancet Child & Adolescent Health: Black children diagnosed with severe sepsis are more likely to die than White or Hispanic children, hospital data suggests
Black children hospitalized in the US due to severe sepsis have 20% greater odds of death than White or Hispanic children, according to research published in The Lancet Child & Adolescent Health journal. (2020-12-14)

Masonic Medical Research Institute studies brown fat: Implications in obesity
The Lin Lab at the MMRI, quantified the number of brown fat cells present in newborn animals. For years, researchers have argued over whether brown fat continues to grow after birth. Dr. Lin and his team have become the first to prove that it does. (2020-12-11)

How much does the way you speak reveal about you?
Listeners can extract a lot of information about a person from their acoustic speech signal. During the 179th ASA Meeting, Dec. 7-10, Tessa Bent, Emerson Wolff, and Jennifer Lentz will describe their study in which listeners were told to categorize 144 unique audio clips of monolingual English talkers into Midland, New York City, and Southern U.S. dialect regions, and Asian American, Black/African American, or white speakers. (2020-12-10)

White blood cells may cause tumor cell death -- but that's not good news
White blood cells are part of many immune system responses in the human body. New research shows that a specific type of those cells may cause brain cancer tissues to die -- but that's not good news, according to researchers at Penn State College of Medicine. They said that higher amounts of this tissue death have been associated with poor survival in patients with aggressive glioblastomas, a deadly type of brain cancer that is common in adults. (2020-12-07)

Once hospitalized, Black patients with COVID-19 have lower risk of death than white
While multiple research studies show that Black and Hispanic patients are more likely to test positive for COVID-19, a team of investigators at NYU Langone Health has found that once hospitalized, Black patients (after controlling for other serious health conditions and neighborhood income) were less likely to have severe illness, die, or be discharged to hospice compared to White patients. (2020-12-04)

Medicine-carriers made from human cells can cure lung infections
Scientists used human white blood cell membranes to carry two drugs, an antibiotic and an anti-inflammatory, directly to infected lungs in mice. The nano-sized drug delivery method successfully treated both the bacterial growth and inflammation in the mice's lungs. The study shows a potential new strategy for treating infectious diseases, including COVID-19. (2020-12-03)

Mortality rate after cancer surgery drops, but gap persists between Black and white patients
Mortality rates after cancer surgery declined for Black as well as white patients during a recent ten-year period, although the mortality gap between the two groups did not narrow, according to new research by Dana-Farber Cancer Institute, Brigham and Women's Hospital, and Harvard University investigators. (2020-12-03)

Chicago neighborhoods with barriers to social distancing had higher COVID-19 death rates
New research has found that Chicago neighborhoods with barriers to social distancing, including limited access to broadband internet and low rates of health insurance, had more COVID-19 deaths in spring 2020. (2020-12-03)

How a police contact by middle school leads to different outcomes for Black, white youth
A new University of Washington study finds that Black youth are more likely than white youth to be treated as 'usual suspects' after a first encounter with police, leading to subsequent arrests over time. Even as white young adults report engaging in significantly more illegal behavior, Black young adults face more criminal penalties. (2020-12-03)

Page 1 of 25 | 1000 Results
   First   Previous   Next      Last   
Brightsurf.com is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com.