Science news from Science Daily

Science Daily logo

Science Daily logo

Science Daily is is an online source for topical science articles active since 1995. It features articles on a wide variety of science topics including: astronomy, exoplanets, computer science, nanotechnology, medicine, psychology, biology, geology, climate, space, physics, mathematics, chemistry, archeology, paleontology, and others.

All content is copyright Science Daily.

Latest Science News -- ScienceDaily

Last feed update: Sunday August 25th, 2019 04:21:33 PM

Deducing the scale of tsunamis from the 'roundness' of deposited gravel

Sunday August 25th, 2019 11:59:34 AM
Scientists have found a link between the 'roundness' distribution of tsunami deposits and how far tsunamis reach inland. They sampled the 'roundness' of gravel from different tsunamis in Koyadori, Japan, and found a common, abrupt change in composition approximately 40% of the 'inundation distance' from the shoreline, regardless of tsunami magnitude. Estimates of ancient tsunami size from geological deposits may help inform effective disaster mitigation.

Light-matter interaction without interference

Saturday August 24th, 2019 12:49:35 AM
Quantum dots might constitute the foundation of quantum communication. They are an efficient interface between matter and light, with photons emitted by the quantum dots transporting information across large distances. However, structures form by default during the manufacture of quantum dots that interfere with communication. Researchers have now successfully eliminated these interferences.

Heart attack patients with mild cognitive impairment get fewer treatments

Friday August 23rd, 2019 10:27:09 PM
New research finds people with mild cognitive impairment don't always receive the same, established medical treatment that patients with normal cognitive functioning get when they have a heart attack.

Evolution designed by parasites

Friday August 23rd, 2019 10:27:02 PM
A new paper explores an overlooked aspect of the relationship between parasites and their hosts by systematically discussing the ways in which parasitic behavior manipulation may encourage the evolution of mechanisms in the host's nervous and endocrine systems.

A novel technology for genome-editing a broad range of mutations in live organisms

Friday August 23rd, 2019 10:27:00 PM
Researchers have developed a new tool -- dubbed SATI -- to edit the mouse genome, enabling the team to target a broad range of mutations and cell types. The new genome-editing technology could be expanded for use in a broad range of gene mutation conditions such as Huntington's disease and the rare premature aging syndrome, progeria.

Migrating mule deer don't need directions, study finds

Friday August 23rd, 2019 10:26:57 PM
Mule deer navigate in spring and fall mostly by using their knowledge of past migration routes and seasonal ranges, according to a new study.

Tech time not to blame for teens' mental health problems

Friday August 23rd, 2019 06:07:36 PM
A new study suggests that the time adolescents are spending on their phones and online is not that bad. The study tracked young adolescents on their smartphones to test whether more time spent using digital technology was linked to worse mental health outcomes.

Children of incarcerated parents have more substance abuse, anxiety

Friday August 23rd, 2019 06:07:34 PM
Children of incarcerated parents are six times more likely to develop a substance use disorder in adulthood and nearly twice as likely to have diagnosable anxiety compared to children whose parents were not incarcerated, according to new research.

Laser-produced uranium plasma evolves into more complex species

Friday August 23rd, 2019 06:07:32 PM
Mapping the evolution of complex uranium oxide species has practical applications from Mars exploration to nuclear proliferation detection.

Brain's astrocytes play starring role in long-term memory

Friday August 23rd, 2019 06:07:31 PM
Researchers have discovered that star-shaped cells called astrocytes help the brain establish long-lasting memories. The work could inform therapies for disorders in which long-term memory is impaired, such as traumatic brain injury or dementia.

How memories form and fade

Friday August 23rd, 2019 06:07:29 PM
Researchers have identified the neural processes that make some memories fade rapidly while other memories persist over time.

Can't get thinner than this: Synthesis of atomically flat boron sheets

Friday August 23rd, 2019 06:07:27 PM
Scientists have found a simple method for producing atomically thin layers of oxidized borophene, a promising 2D boron-based nanomaterial that could serve in a variety of fields.

Self-rolling sensors take heart cell readings in 3D

Friday August 23rd, 2019 06:07:23 PM
A new organ-on-an-electronic-chip platform uses self-rolling biosensor arrays to coil up and measure the electrophysiology of heart cells in 3D.

Analytical tool designs corkscrew-shaped nano-antennae

Friday August 23rd, 2019 06:07:19 PM
Researchers have derived analytically how corkscrew-shaped nano-antennas interact with light.

How microbes generate and use their energy to grow

Friday August 23rd, 2019 06:07:12 PM
Researchers have shed light on how bacteria and baker's yeast generate and use their energy to grow. Knowing about cells' energy use is essential for industrial biotech processes.

Successful egg harvest breaks new ground in saving the northern white rhinoceros

Friday August 23rd, 2019 06:07:06 PM
There are only two northern white rhinos left worldwide, both of them female. Saving this representative of megafauna from extinction seems impossible under these circumstances, yet an international consortium of scientists and conservationists just completed a procedure that could enable assisted reproduction techniques to do just that.

How gonorrhea develops resistance to antibiotics

Friday August 23rd, 2019 06:07:04 PM
As public health officials worry about the emergence of antibiotic-resistant gonorrhea, researchers are tracing how antibiotics bind to a gonococcal protein, information that can help lead to new antimicrobials.

New approaches to heal injured nerves

Friday August 23rd, 2019 06:06:51 PM
Researchers have deciphered new mechanisms that enable the regeneration of nerve fibers. This could open up new treatment approaches for the brain, optic nerve, and spinal cord injuries.

Bioprinting complex living tissue in just a few seconds

Friday August 23rd, 2019 01:48:32 PM
Researchers have developed an extremely fast optical method for sculpting complex shapes in stem-cell-laden hydrogels and then vascularizing the resulting tissue. Their groundbreaking technique stands to change the field of tissue engineering.

Study models new method to accelerate nanoparticles

Friday August 23rd, 2019 01:48:29 PM
Researchers have modeled a method to manipulate nanoparticles as an alternative mode of propulsion for tiny spacecraft that require very small levels of thrust. The team simulated a system that uses light to generate an electromagnetic field to move the particles from a reservoir, funneled through an injector, then shot out of an accelerator to produce thrust.

Can researchers engage safely with the food industry?

Friday August 23rd, 2019 01:48:27 PM
Researchers are exploring ways to help scientists better protect their work from the influence of the food industry.

Frying oil consumption worsened colon cancer and colitis in mice, study shows

Friday August 23rd, 2019 01:48:25 PM
Food scientists have shown that feeding frying oil to mice exaggerated colonic inflammation, enhanced tumor growth and worsened gut leakage, spreading bacteria or toxic bacterial products into the bloodstream.

A new method for quantifying crystal semiconductor efficiency

Friday August 23rd, 2019 01:48:18 PM
Scientists have found a new way to successfully detect the efficiency of crystal semiconductors.

Researchers find a way to stop lung damage due to the body's immune response

Friday August 23rd, 2019 01:17:46 PM
Researchers have discovered a new way to stop harmful inflammation in the lungs due to sepsis and injury. They found a molecule, present during inflammation that binds to white blood cells allowing them to pass from the blood stream into the tissue and cause severe damage.

Do single people suffer more?

Friday August 23rd, 2019 01:17:42 PM
Researchers have confirmed the analgesic effects of social support - even without verbal or physical contact.

The technology behind Bitcoin may improve the medications of the future

Friday August 23rd, 2019 01:17:40 PM
Researchers have developed a prototype of an app that may potentially prescribe the optimal dose of medicine for the individual patient, as well as prevent counterfeit products.

Addressing causes of mortality in Zambia

Friday August 23rd, 2019 01:17:37 PM
Despite the fact that people in sub-Saharan Africa are now living longer than they did two decades ago, their average life expectancy remains below that of the rest of the world population. A new study looked into the importance of various causes of death in Zambia and how eliminating the most prominent of these would impact life expectancy in the country.

Your heart's best friend: Dog ownership associated with better cardiovascular health

Friday August 23rd, 2019 12:00:27 PM
Owning a pet may help maintain a healthy heart, especially if that pet is a dog, according to a new analysis. The study examines the association of pet ownership -- specifically dog ownership -- with cardiovascular disease risk factors and cardiovascular health.

The fat of the land: Estimating the ecological costs of overeating

Friday August 23rd, 2019 12:00:25 PM
Researchers have proposed a way to measure the ecological impact of global food wastage due to excessive consumption. The results suggest that direct food waste -- thrown away or lost from field to fork -- is a mere hors-d'œuvre.

Junk food intake in children reduced by health education that addresses emotional issues

Friday August 23rd, 2019 12:00:23 PM
Teacher training followed by classroom education with information, activities, and emotional support improves lifestyles in teachers and students, according to new research. The study suggests that knowledge alone is insufficient to change behavior.

Pollution and winter linked with rise in heart attack treatment

Friday August 23rd, 2019 12:00:21 PM
Heavily polluted areas have a higher rate of angioplasty procedures to treat blocked arteries than areas with clean air, according to new research. Procedures are even more common in winter, the most polluted time of year.

Study suggests weight loss regardless of psychiatric medication use

Friday August 23rd, 2019 12:00:17 PM
A new study suggests that individuals who take anti-depressants and/or anti-psychotics and participate in a weight management program can lose weight whether or not they take psychiatric medications, according to a new report. The study is the first to examine weight loss outcomes in individuals taking anti-depressants or anti-psychotics alone, in combination or not at all.

Big brains or big guts: Choose one

Friday August 23rd, 2019 12:00:16 PM
A global study comparing 2,062 birds finds that, in highly variable environments, birds tend to have either larger or smaller brains relative to their body size. Birds with smaller brains tend to use ecological strategies that are not available to big-brained counterparts.

Videos of chemical synthesis at atomic resolution achieved

Friday August 23rd, 2019 12:00:14 PM
For the first time, researchers have managed to view previously inaccessible details of certain chemical processes. They have shown there are significant discrete stages to these processes which build on our knowledge of chemical synthesis. These details could aid in the development of methods to synthesize chemicals with greater control and precision than ever before. Methods such as these could be useful in materials science and in drug development.

Elite athletes have poor oral health despite brushing twice daily

Friday August 23rd, 2019 12:00:12 PM
Elite athletes have high rates of oral disease despite brushing their teeth more frequently than most people, finds a new study.

Key areas of measles virus polymerase to target for antiviral drug development

Thursday August 22nd, 2019 09:35:59 PM
Targeting specific areas of the measles virus polymerase, a protein complex that copies the viral genome, can effectively fight the measles virus and be used as an approach to developing new antiviral drugs to treat the serious infectious disease, according to a new study.

Psychiatric illnesses are common in adults and children with kidney failure

Thursday August 22nd, 2019 09:35:53 PM
Between 1996 and 2013, approximately 27% of adults, 21% of elderly adults, and 16% of children with kidney failure in the United States were hospitalized with a psychiatric diagnosis in the first year of kidney failure. The prevalence of hospitalizations with psychiatric diagnoses increased over time across age groups, mostly due to secondary diagnoses.

Scurrying roaches help researchers steady staggering robots

Thursday August 22nd, 2019 08:50:38 PM
To walk or run with finesse, roaches and robots coordinate leg movements via signals sent through centralized systems. Though their moving parts are utterly divergent, researchers have devised handy principles and equations to assess how both beasts and bots locomote and to improve robotic gait.

Research details impact of energy development on deer habitat use

Thursday August 22nd, 2019 08:50:35 PM
Mule deer avoid areas close to such human disturbance, even when there's quality forage in those areas.

International team discovers unique pathway for treating deadly children's brain cancer

Thursday August 22nd, 2019 08:50:33 PM
An international team of researchers has discovered a new pathway that may improve success against an incurable type of children's brain cancer. The study results suggest that scientists have identified a unique way to disrupt the cellular process that contributes to Diffuse Intrinsic Pontine Gliomas (DIPG).

How the sun damages our skin

Thursday August 22nd, 2019 08:50:29 PM
Researchers have discovered the mechanism through which ultraviolet radiation, given off by the sun, damages our skin.

The Paleozoic diet: Why animals eat what they eat

Thursday August 22nd, 2019 08:50:28 PM
In what likely is the first study on the evolution of dietary preferences across the animal kingdom, researchers report several unexpected discoveries, including that the first animal likely was a carnivore and that humans, along with other omnivores, belong to a rare breed.

How red-eared invaders are hurting California's native turtles

Thursday August 22nd, 2019 08:50:26 PM
Western pond turtles got fatter and healthier after scientists removed nearly 200 invasive red-eared slider turtles from the UC Davis Arboretum, reports a new study. The study is the first to quantify competition between these two species in the wild.

What's killing sea otters? Parasite strain from cats

Thursday August 22nd, 2019 08:50:24 PM
Many wild southern sea otters in California are infected with the parasite Toxoplasma gondii, yet the infection is fatal for only a fraction of sea otters, which has long puzzled the scientific community. A new study identifies the parasite's specific strains that are killing southern sea otters, tracing them back to a bobcat and feral domestic cats from nearby watersheds.

Helping NASA spacecraft travel faster and farther with math

Thursday August 22nd, 2019 08:50:20 PM
By combining cutting-edge machine learning with 19th-century mathematics, a mathematician is working to make NASA spacecraft lighter and more damage tolerant by developing methods to detect imperfections in carbon nanomaterials used to make composite rocket fuel tanks and other spacecraft structures.

In a quantum future, which starship destroys the other?

Thursday August 22nd, 2019 08:50:18 PM
Quantum mechanics boasts all sorts of strange features, one being quantum superposition -- the peculiar circumstance in which particles seem to be in two or more places or states at once. Now, an international group of physicists flip that description on its head, showing that particles are not the only objects that can exist in a state of superposition -- so can time itself.

Cracking a decades-old test, researchers bolster case for quantum mechanics

Thursday August 22nd, 2019 08:50:16 PM
Researchers have developed creative tactics to get rid of loopholes that have long confounded tests of quantum mechanics. With their innovative method, the researchers were able to demonstrate quantum interactions between two particles spaced more than 180 meters (590 feet) apart while eliminating the possibility that shared events during the past 11 years affected their interaction.

Nano-thermometer takes temperature inside cells

Thursday August 22nd, 2019 08:50:12 PM
Scientists have developed a nano-thermometer able to take temperatures inside cells. The technique takes advantage of the fluorescent properties of a modified molecular rotor and the viscosity of the cell.

Increasing flood risk

Thursday August 22nd, 2019 08:50:10 PM
Researchers have developed new maps that predict coastal flooding for every county on the Eastern and Gulf Coasts and find 100-year floods could become annual occurrences in New England; and happen every one to 30 years along the southeast Atlantic and Gulf of Mexico shorelines.

Mission to Jupiter's icy moon confirmed

Thursday August 22nd, 2019 06:32:18 PM
An icy ocean world in our solar system that could tell us more about the potential for life on other worlds is coming into focus with confirmation of the Europa Clipper mission's next phase.

A single gene determines whether a fly has a good sense of sight or a good sense of smell

Thursday August 22nd, 2019 06:19:50 PM
Trade-offs in the sizes of visual and olfactory organs are a common feature of animal evolution, but the underlying genetic and developmental mechanisms have not been clear. A study reveals that a single DNA variant that affects the timing of sensory organ development in fruit flies could explain the size trade-off between eyes and antennae, potentially providing a quick route to behavioral changes and adaptation.

Genes tell the story of how the Asian tiger mosquito spread

Thursday August 22nd, 2019 06:19:48 PM
Over the last 40 years, the Asian tiger mosquito, Aedes albopictus, has invaded every continent thanks to the transportation of its eggs via human trade and transportation. Researchers have now used the genomes of the mosquitoes to track the history of the invasion and expansion of the species through Albania, Italy, and Greece.

Lasers enable engineers to weld ceramics, no furnace required

Thursday August 22nd, 2019 06:19:46 PM
Smartphones that don't scratch or shatter. Metal-free pacemakers. Electronics for space and other harsh environments. These could all be made possible thanks to a new ceramic welding technology. The process works in ambient conditions and uses less than 50 watts of laser power, making it more practical than current ceramic welding methods that require heating the parts in a furnace.

Memory T cells shelter in bone marrow, boosting immunity in mice with restricted diets

Thursday August 22nd, 2019 06:19:29 PM
Even when taking in fewer calories and nutrients, humans and other mammals usually remain protected against infectious diseases they have already encountered. This may be because memory T cells, which are located throughout the body and required to maintain immune responses to infectious agents. A new study in mice also found that animals undergoing dietary restriction were better protected against tumors and bacterial infections than animals with unrestricted diets.

Cell suicide could hold key for brain health and food security

Thursday August 22nd, 2019 06:19:27 PM
Research into the self-destruction of cells in humans and plants could lead to treatments for neurodegenerative brain diseases and the development of disease-resistant plants. A study has identified the role certain proteins play in cellular suicide.

Dietary zinc protects against Streptococcus pneumoniae infection, study finds

Thursday August 22nd, 2019 06:19:21 PM
Researchers have uncovered a crucial link between dietary zinc intake and protection against Streptococcus pneumoniae, the primary bacterial cause of pneumonia.

Shocking rate of plant extinctions in South Africa

Thursday August 22nd, 2019 06:19:18 PM
Plant extinctions from South Africa's three biodiversity hot spots represent 45.4 percent of all extinctions from 10 of the world's 36 hotspots, new research finds.

Malaria control success in Africa at risk from spread of multi-drug resistance

Thursday August 22nd, 2019 06:19:16 PM
In the first continent-wide genomic study of malaria parasites in Africa, scientists have uncovered the genetic features of Plasmodium falciparum parasites that inhabit different regions of the continent, including the genetic factors that confer resistance to anti-malarial drugs. This sheds new light on the way that drug resistance is emerging in different locations and moving by various routes across Africa, putting previous success in controlling malaria at risk.

Map of malaria behavior set to revolutionize research

Thursday August 22nd, 2019 06:19:14 PM
The first detailed map of individual malaria parasite behavior across each stage of its complicated life cycle has been created by scientists. Researchers used advanced single-cell technology to isolate individual parasites and measure their gene activity. The result is the Malaria Cell Atlas, which gives the highest resolution view of malaria parasite gene expression to date and monitors how individual parasites change as they develop in both the mosquito and human host.

Structure of protein nano turbine revealed

Thursday August 22nd, 2019 06:19:12 PM
Scientists have determined the first structure of a cell's rotary engine using state-of-art microscopy.

Feed aggregation powered by Syndicate Press.
Processed request in 0.00663 seconds.