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Study: modern agriculture has weakened human bones

Brooks HaysWASHINGTON, Dec. 22 (UPI) -- According to a new study, the ends of human bones became much lighter and less dense around 12,000 years ago, as humans became more...

U.S. coy on whether responsible for North Korea internet outages

North Korea experienced sweeping and progressively worse internet outages, with one computer expert saying the country's online access is "totally down." The White House and the State Department declined to...

Light-emitting e-readers before bedtime can adversely impact sleep

Use of a light-emitting electronic device (LE-eBook) in the hours before bedtime can adversely impact overall health, alertness, and the circadian clock which synchronizes the daily rhythm of sleep to...

Coral reveals long-term link between Pacific winds, global climate

New research indicates that shifts in Pacific trade winds played a key role in twentieth century climate variation and are likely again influencing global temperatures. The study uses a novel...

Using light to understand the brain

An innovative way to understand how the brain works by using flashes of light, has been developed by researchers, allowing them to both 'read' and 'write' brain signals.The new technique...

Some heart patients do better when the doctor's away

When cardiologists are away at national conferences, patients with acute heart conditions are more likely to survive, a study shows.

Ursid Meteor Shower Peaks Tonight: How to See It

The Ursid meteor shower — peaking Monday night and into the wee hours of Tuesday morning — should also offer skywatchers a good view this year.

Drug helps Huntington’s disease-afflicted mice, and their offspring

Famine, drug abuse and even stress can “silence” certain genes, causing health problems in generations to come. Now scientists are wondering—could therapies that change gene expression in parents help their...

Muddy Forests, Shorter Winters Present Challenges for Loggers

A new study finds that the period of frozen ground has declined by an average of two or three weeks since 1948. During that time, wood harvests have shifted in...

Modern Genetics Confirm Ancient Relationship Between Fins and Hands

Efforts to connect the evolutionary transition from fish fins to wrist and fingers with the genetic machinery for this adaptation have fallen short because they focused on the wrong fish....

Mysteries of 'molecular machines' revealed: Phenix software uses X-ray diffraction spots to produce 3-D image

Scientists are making it easier for pharmaceutical companies and researchers to see the detailed inner workings of molecular machines.

Study pumps up the volume on understanding of marine invertebrate hearing

Noise pollution in the ocean is increasingly recognized as harmful to marine mammals, affecting their ability to communicate, find mates, and hunt for food. But what impact does noise have...

Clarithromycin-statin mix can cause drug interactions, requiring hospitalization

The combination of the common antibiotic clarithromycin with some statins increases the risk of adverse events, which may require hospital admission for older people, according to a new study. Statins,...

Distribution of fish on northeast US shelf influenced by both fishing, climate

Scientists studying the distribution of four commercial and recreational fish stocks in Northeast US waters have found that climate change can have major impacts on the distribution of fish, but...

Decision 'cascades' in social networks

People in social networks are often influenced by each other's decisions, resulting in a run of behaviors in which their choices become highly correlated, causing a cascade of decisions.

Universality of charge order in cuprate superconductors

Scientists have now identified charge order in HgBa2CuO4 , a pristine cuprate material. A further important result of the study is the finding that the charge order is closely related...

Variety is the spice of humble moth's sex life

A small brown moth, the gold swift moth (Phymatopus hecta), has one of the most complex sex lives in the insect world, new research has found. Despite the insect's unassuming...

Disadvantaged men more likely to do 'women's work' reveals new study

Men who are disabled and from an ethnic minority are significantly more likely to do jobs traditionally associated with women, a new study show. The work analyzed the workforce across...

Scientists 'map' water vapor in Martian atmosphere

Scientists have created a 'map' of the distribution of water vapor. Their research includes observations of seasonal variations in atmospheric concentrations using data collected over ten years by the Russian-French...

The Milky Way's new neighbor

The Milky Way, the galaxy we live in, is part of a cluster of more than 50 galaxies that make up the ‘Local Group’, a collection that includes the famous...

Suppressing a protein reduces cancer spread in mice

A specific protein called 'chitinase 3-like-1' appears key in enabling malignant melanoma or breast cancer to spread to the lungs of mice, researchers have found. Decreasing its levels or blocking...

Limit imaging scans for headache? Neurosurgeons raise concerns

Recent guidelines seeking to reduce the use of neuroimaging tests for patients with headaches run the risk of missing or delaying the diagnosis of brain tumors, according to neurosurgeons.

New, fundamental mechanism for how resveratrol provides health benefits uncovered

Resveratrol, the red-wine ingredient once touted as an elixir of youth, powerfully activates an evolutionarily ancient stress response in human cells, scientists have found. The finding should dispel much of...

Suicide risk linked to insomnia, alcohol use, study shows

Insomnia symptoms mediate the relationship between alcohol use and suicide risk, and that this mediation is moderated by gender, a new study demonstrates for the first time. The study suggests...

Methane is leaking from permafrost offshore Siberia

Images of craters on Yamal Peninsula, caused by collapsing permafrost, have become world famous. But did you know that this permafrost extends to the ocean floor? And it is thawing.

Fast-food consumption linked to lower test score gains in 8th graders

The amount of fast food children eat may be linked to how well they do in school, a new America-wide study suggests. This study can't say why fast-food consumption is...

Piezoelectricity in a 2D Semiconductor

A door has been opened to low-power off/on switches in micro-electro-mechanical systems (MEMS) and nanoelectronic devices, as well as ultrasensitive bio-sensors, with the first observation of piezoelectricity in a free...

Weight Training Helps Keep Men's Waistline from Expanding

People who lift weights every day may accumulate less belly fat over the years, compared with people who spend the same amount of time doing aerobic exercises, according to a...

Space Station Crew Sends Christmas Greetings to World

Astronauts Barry "Butch" Wilmore and Terry Virts got into the Christmas spirit by sending holiday greetings to the rest of us here on Earth.

Google unveils the prototype for their first self-driving car

Thor BensonMOUNTAIN VIEW, Calif., Dec. 22 (UPI) -- Google unveiled the prototype for their first self-driving car on Monday.

New distance rehabilitation system developed for patients with heart pathologies

A new distance heart rehabilitation system based on physical exercise routines for people affected by heart pathologies has been developed by researchers. The system is designed for both chronic patients...

Drought causes birds to nest later, reducing nesting success

A recent study suggests drought conditions are delaying nesting by two weeks or more for some Sonoran Desert bird species, such as Black-tailed Gnatcatchers and Verdins.

To Survive A Heart Attack, It Helps To Be Fat

Being obese brings with it a greater risk of heart disease, but patients who are obese before developing heart failure live longer than normal weight patients with the same condition,...

Does journal peer review miss best and brightest?

Gatekeeping predicts article citations but may fail to recognize unconventional but ultimately popular papers

Financial decisions: Older adults' lifetime of acquired expertise offsets declining ability to process information

Getting old doesn't spell doom when it comes to making important financial decisions, a team of researchers led by a University of California, Riverside assistant professor report in a just...

Boeing, Blackberry building self-destructing phone

Ed AdamczykWATERLOO , Ontario, Dec. 22 (UPI) -- Smartphone maker Blackberry Ltd. and aerospace manufacturer Boeing Co. are collaborating on a self-destructing phone, Blackberry's CEO revealed.

First gorilla born in a zoo turns 58 in Ohio

Colo, a Western lowland gorilla, is celebrating with cake made of peanut butter, applesauce, honey, carrots and Greek yogurt

Scientists Discover Blocking Notch Inhibition Pathway Provides a New Route to Hair Cell Regeneration for Hearing Restoration

Scientists from Massachusetts Eye and Ear/Harvard Medical School and Fudan University have shown that blocking the Notch pathway plays an essential role that determines cochlear progenitor cell proliferation capacity.

New non-invasive method can detect Alzheimer's disease early

A noninvasive MRI approach that can detect the Alzheimer's disease in a living animal, well before typical Alzheimer's symptoms appear, has been developed by researchers. The research team created an...

New chemical analysis of ancient Martian meteorite provides clues to planet's history of habitability

A new analysis of a Martian rock that meteorite hunters plucked from an Antarctic ice field 30 years ago this month reveals a record of the planet's climate billions of...

Study sheds new light on the diet of extinct animals

A study of tooth enamel in mammals living today in the equatorial forest of Gabon could ultimately shed light on the diet of long extinct animals, according to new research...

Crowdsourcing with mobile apps brings 'big data' to psychological research

A fast-paced game app where players pretend they are baggage screening officers operating airport x-ray scanners has provided researchers with billions of pieces of data in record time, according to...

Devising a way to count proteins as they group

A new study from Indiana University-Purdue University Indianapolis and University of California Berkeley researchers reports on an innovative theoretical methodology to solve "the counting problem," which is key to understanding...

Acoustic tweezers manipulate cell-to-cell contact

Sound waves can precisely position groups of cells for study without the danger of changing or damaging the cells, according to a team of Penn State researchers who are using...

Smoke signals: New evidence links air pollution to congenital defects

The health effects of air pollution are a major concern for urban populations all over the world. A new study provides new evidence linking high exposure to air pollution to...

Can the blood of Ebola survivors create a cure?

Several leading scientists have embraced the idea of using survivors' antibodies as the most promising approach in the fight against Ebola.

Diverse autism mutations lead to different disease outcomes

People with autism have a wide range of symptoms, with no two people sharing the exact type and severity of behaviors. Now a large-scale analysis of hundreds of patients and...

Loose bear eludes capture in Phoenix suburb

Authorities have given up trying to capture a bear that was running through a Phoenix suburb much of Monday morning.

Blocking excessive division of cell powerhouses reduces liver cell death in cholestasis

The power plants that fuel liver cells rapidly splinter when exposed to bile salts that aid digestion, prompting cell death, but blocking this excessive fission appears to protect the liver,...

New technology makes tissues, someday maybe organs

A new device for building large tissues from living components of three-dimensional microtissues borrows on ideas from electronics manufacturing. The Bio-Pick, Place, and Perfuse is a step toward someday making...

Alternative for pain control after knee replacement surgery

Injecting a newer long-acting numbing medicine called liposomal bupivacaine into the tissue surrounding the knee during surgery may provide a faster recovery and higher patient satisfaction, a new study has...

One in every three people with type 1 diabetes produces insulin years post-diagnosis

About one-third of people with type 1 diabetes (T1D) produce insulin, as measured by C-peptide, a byproduct of insulin production, even upward of forty years from initial diagnosis, according to...

Ebola Epidemic Continues in Africa, Despite Progress in Some Places

There has been dramatic improvement in the fight against Ebola in some parts of West Africa, however, in other places, much work needs to be done, U.S. health officials said...

Cells 'feel' their surroundings using finger-like structures

Cells have finger-like projections that they use to feel their surroundings. They can detect the chemical environment and they can 'feel' their physical surroundings using ultrasensitive sensors. New research from...

Lung Cancer: New Genetic Anomalies Discovered

By analyzing the DNA and RNA of lung cancers, researchers have found that patients whose tumors contained a large number of gene fusions had worse outcomes than patients with fewer...

A Particle Physics App for Your Phone

A free app for Android and Apple devices called The Particle Adventure makes checking out the world of quarks, dark matter, and particle accelerators as easy as tapping touchscreen icons.

Angelina Jolie says marriage to Brad Pitt is 'hard work'

Veronica LinaresSYDNEY, Dec. 22 (UPI) -- Angelina Jolie opened up about her sheltered relationship with Brat Pitt and called marriage "hard work" in a recent interview for Australian Women's Weekly.

The psychology of gift-giving and receiving

Gift exchanges can reveal how people think about others, what they value and enjoy, and how they build and maintain relationships. Researchers are exploring various aspects of gift-giving and receiving,...

Study examines websites' password practices

Global IT giants including Amazon and LinkedIn could be doing far more to raise awareness of the need for better password practices among their users.

221 new species described by the California Academy of Sciences in 2014

In 2014, researchers at the California Academy of Sciences added a whopping 221 new plant and animal species to our family tree, enriching our understanding of Earth's complex web of...

Radiologist recommendations for chest CT have high clinical yield

A substantial percentage of patients who receive radiologist recommendations for chest CT to evaluate abnormal findings on outpatient chest X-rays have clinically relevant findings, including cancer, according to a new...

Bone loss drugs may help prevent endometrial cancer

Women who use bisphosphonates -- medications commonly used to treat osteoporosis and other bone conditions -- have about half the risk of developing endometrial cancer as women who do not...

Consumer purchases of cakes, cookies and pies have decreased by 24 percent

There has been little change in the nutritional content of ready-to-eat grain-based desserts manufactured or purchased between 2005 and 2012; however overall consumer purchases of ready-to-eat grain-based desserts declined by...

Ecosystems need maths not random nature to survive

A previously unknown mathematical property has been found to be behind one of nature's greatest mysteries – how ecosystems survive.

Ninety-eight new beetle species discovered in Indonesia

Ninety-eight new species of the beetle genus Trigonopterus have been described from Java, Bali and other Indonesian islands. Museum scientists from Germany and their local counterparts used an innovative approach...

Average temperature in Finland has risen by more than two degrees

Over the past 166 years, the average temperature in Finland has risen by more than two degrees. During the observation period, the average increase was 0.14 degrees per decade, which...

Existing drug, riluzole, may prevent foggy 'old age' brain, research shows

Forgetfulness, it turns out, is all in the head. Scientists have shown that fading memory and clouding judgment, the type that comes with advancing age, show up as lost and...

Shape-shifting may help some species cope with climate change

Researchers have found that a Rocky Mountain mustard plant alters its physical appearance and flowering time in response to different environmental conditions, suggesting some species can quickly shape-shift to cope...

Mind-Blowing Earth From Space Time-Lapses Compiled | Video

European Space Agency astronaut Alexander Gerst snapped some incredible imagery of the Earth during his tour aboard the ISS. 12,5000 images of auroras, lightning, landscapes and nightscapes were compiled to...

Image: Multicoloured view of supernova remnant

Most celestial events unfold over thousands of years or more, making it impossible to follow their evolution on human timescales. Supernovas are notable exceptions, the powerful stellar explosions that make...

22 indicted in alleged dog-fighting ring in Baltimore

Danielle HaynesBALTIMORE, Dec. 22 (UPI) -- Officials in Baltimore handed down 22 indictments and rescued more than 225 dogs after busting up a dog-fighting ring.

Chicago Bears: Cutler to start, Clausen diagnosed with concussion

Chicago Bears quarterback Jimmy Clausen was diagnosed with a concussion after experiencing delayed symptoms on Sunday night.

Kansas says new virus found after resident's death

TOPEKA, Kan. (AP) -- Health officials say a new virus has been discovered following the death of a southeast Kansas resident this summer and they believe...

Arizona to change drugs it uses in executions

TUCSON, Ariz. (AP) -- Arizona officials said Monday they have been cleared of any wrongdoing in an execution this year that lasted nearly two hours, but...

Crystallized Intelligence: Why Gray Is The New Gold

Scam artists often prey on older people and that has fed the perception that when it comes to important financial decisions, getting old means having less competence.Not so, according to...

Is Barbie Damaging The Body Image Of Girls?

Just because Barbie has impossible proportions, does that mean playing with her will distort young girls' body image? Freddycat1, CC BY-SABy Zali Yager, Victoria UniversityLaunched in 1959, named after the...

Dr. C: When cancer looms over the holidays

A year after chronicling his ordeal with cancer for CBC, Dr. Nikhil Joshi reveals what he's learned from treating patients at what is ordinarily a time of joy.

NASA Black Hole Telescope Snaps Dazzling View of the Sun

The new image, which was taken by the NuSTAR spacecraft, is the best-ever view of the sun in high-energy X-ray light. The photo, and others taken by NuSTAR in the...

As dust clears, what's next for Sony?

The Sony hacking attack continues to deliver more dramatic plotlines than any fictional movie, but meanwhile the movie studio must move forward and tackle the next steps in minimizing the...

Will Smith, Margot Robbie star in new 'Focus' trailer

Annie MartinLOS ANGELES, Dec. 22 (UPI) -- Will Smith stars as a con man whose latest job is complicated by his former lover and protégé (Margot Robbie) in a new...

Rolling Stone asks journalism school to investigate UVA rape story

Danielle HaynesNEW YORK, Dec. 22 (UPI) -- Rolling Stone magazine asked the Columbia Journalism School to review its handling of a story about a University of Virginia student who says...

Do Weddell Seals Have Mammal 'GPS'? (Gallery)

Weddell seals have an amazing ability to dive deep and swim far for food, but how do they find their way back?

'Kiddie caudal' anesthesia seems safe, but still more to learn

A recent report provided anesthesiologists with reassuring data on the safety of caudal nerve block—sometimes called the "kiddie caudal"—for infants and young children undergoing surgery. But an editorial in the...

New connection between metabolism, regulation

In cells, ribonucleic acids (RNAs) are most commonly known as messengers or scaffold molecules, but they can also accelerate key biochemical reactions and regulate metabolic pathways. These regulatory RNAs were...

New cell marking technique to help understand how our brain works

A new technique to mark individual brain cells to help improve our understanding of how the brain works has been developed by researchers. In neuroscience research, it is a challenge...

Study Suggests Mechanism For How Eye Protein Protects Against Cataracts

Structural Biology: NMR study of protein fragment reveals how chaperone might scan for unfolded regions in eye protein it protects

Dissecting a Supernova: A Star Explosion Post-mortem (Videos)

Astronomers have spotted a new object emerging from the ashes of a recently deceased star. The stellar post-mortem may also solve a mystery surrounding the unexpected shape of the star's...

Weird Science: Are More Siberian Black Holes Ahead?

In the world of weird science, 2014 was the year of zero-G gecko sex, laser-guided sea monkeys ... and the black holes of Siberia.

Four Galileo satellites at ESA test centre

ESA engineers unwrapped a welcome Christmas present: the latest Galileo satellite. The navigation satellite will undergo a full checkout in Europe's largest satellite test facility to prove its readiness for...

Christmas Eve From Lunar Orbit - Apollo 8 Flashback | Video

NASA astronauts Frank Borman, Jim Lovell and William Anders take turns reading from the Bible's book of Genesis during the first manned mission to the moon. The entered lunar orbit...

The Stellar Origins of Your Toothpaste

It may only take brushing your teeth to help you feel connected to the cosmos. New research suggests that fluorine, an element in toothpaste, may have been forged billions of...

California storms unearth ancient fossils

Eroded by heavy rains, beaches and cliffs along the Pacific coast are revealing fossil finds dating back millions of years

PPPL's Popular Science Lecture Series Debuts Jan. 10 with New Name Honoring Long-Time Organizer

Announcement of start of 2015 Science on Saturday lecture series.

Couple fight to keep $160,000 wine collection

Aileen GraefPHILADELPHIA, Dec. 22 (UPI) -- Wine collector Arthur Goldman and his wife are trying to stop the state from seizing and destroying their $160,000 collection of wine.

Santa-suited firefighter's rescue caught on camera

Ben HooperRUTHERFORD, Australia, Dec. 22 (UPI) -- An Australian firefighter dressed as Santa to hand out treats to kids was caught on video giving CPR to a man pulled from...

Claims of nationalized Cuban assets must be resolved

Ed AdamczykWASHINGTON, Dec. 22 (UPI) -- A resolution of claims for compensation regarding seized U.S. property is part of the anticipation of the announced normalization of U.S.-Cuban relations.

Mike Colter to play Luke Cage in 'Jessica Jones'

Karen ButlerBEVERLY HILLS, Calif., Dec. 22 (UPI) -- Mike Colter has been cast as Luke Cage in "Marvel's A.K.A. Jessica Jones," Marvel and Netflix announced Monday.

Katniss Everdeen wax figure unveiled at Madam Tussauds

Annie MartinLONDON, Dec. 22 (UPI) -- "Hunger Games" protagonist Katniss Everdeen (Jennifer Lawrence) has been immortalized in wax at Madame Tussauds in London.

Reading from tablets before bed alters sleep cycles

If you’re in bed reading this, you may feel sleepy tomorrow morning.

Crafting ultrathin color coatings: Physicists produce vivid optical effects—on paper

In a sub-basement deep below the Laboratory for Integrated Science and Engineering at Harvard University, Mikhail Kats gets dressed. Mesh shoe covers, a face mask, a hair net, a pale...