domingo, 31 de agosto de 2014

Today's Words of Wisdom

Knowing how to be content means loving your life and embracing it.

From "The Challenge of the Mind", written by Master Ryuho Okawa
http://amazon.com/o/ASIN/0751535737/hsmail-20/



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[mpnews] ¿Están los arqueólogos a punto de descubrir otra ciudad maya?

[mpnews] ¿Están los arqueólogos a punto de descubrir otra ciudad maya?

Link to MysteryPlanet.com.ar

¿Están los arqueólogos a punto de descubrir otra ciudad maya?

Posted: 30 Aug 2014 11:44 PM PDT

Hace un par de semanas atrás, te informábamos, antes que cualquier otro medio, sobre el extraordinario hallazgo de dos ancestrales ciudades mayas en las selvas de México. Ahora, de acuerdo a National Geographic, investigadores creen estar cerca de desvelar otra maravilla de los Mayas, esta vez en Guatemala: la ciudad ...

ScienceDaily: Most Popular News

ScienceDaily: Most Popular News


The universal 'anger face': Each element makes you look physically stronger and more formidable

Posted: 28 Aug 2014 03:48 PM PDT

The next time you get really mad, take a look in the mirror. See the lowered brow, the thinned lips and the flared nostrils? That's what social scientists call the "anger face," and it appears to be part of our basic biology as humans. Now, researchers have identified the functional advantages that caused the specific appearance of the anger face to evolve.

NASA's Spitzer Space Telescope witnesses asteroid smashup

Posted: 28 Aug 2014 02:01 PM PDT

NASA's Spitzer Space Telescope has spotted an eruption of dust around a young star, possibly the result of a smashup between large asteroids. This type of collision can eventually lead to the formation of planets.

Second-hand e-cig smoke compared to regular cigarette smoke

Posted: 28 Aug 2014 11:28 AM PDT

Second-hand e-cig smoke has 10 times less particulate matter than regular cigarette smoke; but higher levels of certain toxic metals, a new study finds.

Prehistoric migrations: DNA study unravels the settlement history of the New World Arctic

Posted: 28 Aug 2014 11:27 AM PDT

A new DNA study unravels the settlement history of the New World Arctic. We know people have lived in the New World Arctic for about 5,000 years. Archaeological evidence clearly shows that a variety of cultures survived the harsh climate in Alaska, Canada and Greenland for thousands of years. Despite this, there are several unanswered questions about these people.

Home is where the microbes are

Posted: 28 Aug 2014 11:27 AM PDT

A person's home is their castle, and they populate it with their own subjects: millions and millions of bacteria. Scientists have detailed the microbes that live in houses and apartments. The results shed light on the complicated interaction between humans and the microbes that live on and around us. Mounting evidence suggests that these microscopic, teeming communities play a role in human health and disease treatment and transmission.

New research reveals how wild rabbits were genetically transformed into tame rabbits

Posted: 28 Aug 2014 11:27 AM PDT

The genetic changes that transformed wild animals into domesticated forms have long been a mystery. An international team of scientists has now made a breakthrough by showing that many genes controlling the development of the brain and the nervous system were particularly important for rabbit domestication. The study gives answers to many genetic questions.

Electric current to brain boosts memory: May help treat memory disorders from stroke, Alzheimer's, brain injury

Posted: 28 Aug 2014 11:27 AM PDT

Stimulating a region in the brain via non-invasive delivery of electrical current using magnetic pulses, called Transcranial Magnetic Stimulation, improves memory. The discovery opens a new field of possibilities for treating memory impairments caused by conditions such as stroke, early-stage Alzheimer's disease, traumatic brain injury, cardiac arrest and the memory problems that occur in healthy aging.

Astronomy: Radio telescopes settle controversy over distance to Pleiades

Posted: 28 Aug 2014 11:27 AM PDT

A worldwide network of radio telescopes measured the distance to the famous star cluster the Pleiades to an accuracy within 1 percent. The result resolved a controversy raised by a satellite's measurement that now is shown to be wrong. The incorrect measurement had challenged standard models of star formation and evolution.

Genomic sequencing reveals mutations, insights into 2014 Ebola outbreak

Posted: 28 Aug 2014 11:27 AM PDT

In response to an ongoing, unprecedented outbreak of Ebola virus disease in West Africa, a team of researchers has rapidly sequenced and analyzed more than 99 Ebola virus genomes. Their findings could have important implications for rapid field diagnostic tests.

Mystery solved: 'Sailing stones' of Death Valley seen in action for the first time

Posted: 28 Aug 2014 11:19 AM PDT

Racetrack Playa is home to an enduring Death Valley mystery. Littered across the surface of this dry lake, also called a "playa," are hundreds of rocks -- some weighing as much as 320 kilograms (700 pounds) -- that seem to have been dragged across the ground, leaving synchronized trails that can stretch for hundreds of meters.

Nanoscale assembly line: Nanoscale production line for assembly of biological molecules created

Posted: 28 Aug 2014 08:08 AM PDT

Researchers have realized a long-held dream: inspired by an industrial assembly line, they have developed a nanoscale production line for the assembly of biological molecules.

Paleontology: Oldest representative of a weird arthropod group

Posted: 28 Aug 2014 06:14 AM PDT

Biologists have assigned a number of 435-million-year-old fossils to a new genus of predatory arthropods. These animals lived in shallow marine habitats and were far less eye-catching than related forms found in Jurassic strata.

From nose to knee: Engineered cartilage regenerates joints

Posted: 28 Aug 2014 06:02 AM PDT

Human articular cartilage defects can be treated with nasal septum cells. Researchers now report that cells taken from the nasal septum are able to adapt to the environment of the knee joint and can thus repair articular cartilage defects. The nasal cartilage cells' ability to self-renew and adapt to the joint environment is associated with the expression of so-called HOX genes.

Walking fish reveal how our ancestors evolved onto land

Posted: 27 Aug 2014 10:15 AM PDT

About 400 million years ago a group of fish began exploring land and evolved into tetrapods – today's amphibians, reptiles, birds, and mammals. But just how these ancient fish used their fishy bodies and fins in a terrestrial environment and what evolutionary processes were at play remain scientific mysteries.

Lifetime of fitness: Fountain of youth for bone, joint health?

Posted: 27 Aug 2014 09:26 AM PDT

Being physically active may significantly improve musculoskeletal and overall health, and minimize or delay the effects of aging. "An increasing amount of evidence demonstrates that we can modulate age-related decline in the musculoskeletal system," said the lead study author.. "A lot of the deterioration we see with aging can be attributed to a more sedentary lifestyle instead of aging itself."

Yellowstone supereruption would send ash across North America

Posted: 27 Aug 2014 09:26 AM PDT

In the unlikely event of a volcanic supereruption at Yellowstone National Park, the northern Rocky Mountains would be blanketed in meters of ash, and millimeters would be deposited as far away as New York City, Los Angeles and Miami, according to a new study.

Southwest U.S. may face 'megadrought' this century

Posted: 27 Aug 2014 09:25 AM PDT

Because of global warming, scientists say, the chances of the southwestern United States experiencing a decade long drought is at least 50 percent, and the chances of a "megadrought" -- one that lasts over 30 years -- ranges from 20 to 50 percent over the next century.

ScienceDaily: Strange Science News

ScienceDaily: Strange Science News


Study reveals drivers of Western consumers' readiness to eat insects

Posted: 28 Aug 2014 08:52 AM PDT

The most likely early adopters of insets as a meat substitute in Western societies are young men with weak attitudes toward meat, who are open to trying novel foods and interested in the environmental impact of their food choice. With a low level of food neophobia, the likelihood that this type of person is willing to eat insects as a meat substitute is estimated more than 75%, according to a new study.

Nanoscale assembly line: Nanoscale production line for assembly of biological molecules created

Posted: 28 Aug 2014 08:08 AM PDT

Researchers have realized a long-held dream: inspired by an industrial assembly line, they have developed a nanoscale production line for the assembly of biological molecules.

ScienceDaily: Top News

ScienceDaily: Top News


Factor in naked mole rat's cells enhances protein integrity

Posted: 29 Aug 2014 02:54 PM PDT

A factor in naked mole rat cells could be one of the secrets to how the rodent defies aging, researchers say. Naked mole rats, which burrow through underground tunnels in their native East Africa, are nearly hairless rodents. They live as long as 32 years. Naked mole rats maintain cancer-free good health and reproductive potential well into their third decade of life.

Surprising discovery: HIV hides in gut, evading eradication

Posted: 29 Aug 2014 02:54 PM PDT

Some surprising discoveries about the body's initial responses to HIV infection have been made by researchers. One of the biggest obstacles to complete viral eradication and immune recovery is the stable HIV reservoir in the gut. There is very little information about the early viral invasion and the establishment of the gut reservoir. "We want to understand what enables the virus to invade the gut, cause inflammation and kill the immune cells," said the study's lead author.

Antidepressants show potential for postoperative pain

Posted: 29 Aug 2014 02:54 PM PDT

Anesthesiologists examine studies where antidepressants were prescribed for pain after surgery. Clinical trials are often used to answer questions about the efficacy of the off-label uses of drugs. In the case of antidepressants, their effects on postsurgical pain continue to be an area of research interest.

Preventing cancer from forming 'tentacles' stops dangerous spread

Posted: 29 Aug 2014 02:54 PM PDT

'Invadopodia' play a key role in the spread of cancer, a team of researchers reports. The study shows preventing these tentacle-like structures from forming can stop the spread of cancer entirely.

Efficacy of new gene therapy approach for toxin exposures shown in mouse study

Posted: 29 Aug 2014 02:53 PM PDT

Gene therapy may offer significant advantages in prevention and treatment of botulism exposure over current methods, new research shows. "We envision this treatment approach having a broad range of applications such as protecting military personnel from biothreat agents or protecting the public from other toxin-mediated diseases such as C. difficile and Shiga toxin-producing E. coli infections," said the lead researcher.

Pioneer strategy for creating new materials

Posted: 29 Aug 2014 10:59 AM PDT

Making something new is never easy. Scientists constantly theorize about new materials, but when the material is manufactured it doesn't always work as expected. To create a new strategy for designing materials, scientists combined two different approaches at two different facilities to synthesize new materials. This new strategy gives faster feedback on what growth schemes are best, thus shortening the timeframe to manufacture a new, stable material for energy transport and conversion applications.

Revealing novel mode of action for osteoporosis drug

Posted: 29 Aug 2014 10:54 AM PDT

Raloxifene is a US Food and Drug Administration-approved treatment for decreasing fracture risk in osteoporosis. While raloxifene is as effective at reducing fracture risk as other current treatments, this works only partially by suppressing bone loss. X-ray studies revealed an additional mechanism underlying raloxifene action, providing an explanation for how this drug can achieve equivalent clinical benefit.

New biodiversity metric defined by researchers

Posted: 29 Aug 2014 10:54 AM PDT

To understand how the repeated climatic shifts over the last 120,000 years may have influenced today's patterns of genetic diversity, a team of researchers developed a new biodiversity metric called 'phylogeographic endemism.'

Leading Ebola researcher says there's an effective treatment for Ebola

Posted: 29 Aug 2014 10:54 AM PDT

A leading US Ebola researcher has gone on record stating that a blend of three monoclonal antibodies can completely protect monkeys against a lethal dose of Ebola virus up to five days after infection, at a time when the disease is severe.

MERS: Low transmissibility, dangerous illness

Posted: 29 Aug 2014 07:33 AM PDT

The MERS coronavirus has caused disease outbreaks across the Arabian Peninsula and spread to Europe several times. The severe pneumonia virus has claimed the lives of several hundred people since its discovery in 2012. For a long time, scientists have been puzzled over how easily the pathogen spreads from human to human. An international team of researchers has now come to the conclusion that the rate of human transmission is low.

Intervention needed for survivors of childhood burns

Posted: 29 Aug 2014 07:32 AM PDT

Adults who have been hospitalized for a burn as a child experience higher than usual rates of depression and suicidal thoughts, according to new research. A 30-year follow up of childhood burns victims has found that 42% of people surveyed had suffered some form of mental illness and 30% suffered depression at some stage in their lives.

New model predicts patients with type 1 diabetes who will go on to develop major complications

Posted: 28 Aug 2014 03:48 PM PDT

A new model has been developed for predicting which patients with type 1 diabetes will go on to develop major complications, through easily and routinely measured risk factors. "The risk estimates can guide surveillance recommendations, inform patients and allow efficient design and analysis of clinical trials," the author say.

Cellphone addiction harming academic performance is 'an increasingly realistic possibility'

Posted: 28 Aug 2014 03:47 PM PDT

Women college students spend an average of 10 hours a day on their cellphones, with men college students spending nearly eight hours, according to a study on cellphone activity. "As cellphone functions increase, addictions to this seemingly indispensable piece of technology become an increasingly realistic possibility," researchers noted.

Prions can trigger 'stuck' wine fermentations, researchers find

Posted: 28 Aug 2014 02:00 PM PDT

A biochemical communication system that crosses from bacteria to yeast, making use of prions, has been discovered. It is responsible for a chronic winemaking problem known as 'stuck fermentation' and may also have implications for better understanding metabolic diseases, such as type 2 diabetes, in humans.

Socially-assistive robots help kids with autism learn by providing personalized prompts

Posted: 28 Aug 2014 02:00 PM PDT

Children with autism spectrum disorders showed improved or maintained performance in learning imitative behavior by interacting with humanoid robots that provided graded cueing, an occupational therapy technique that shapes behavior by providing increasingly specific cues to help a person learn new skills.

Breakthrough in RSV research with drug trial

Posted: 28 Aug 2014 02:00 PM PDT

A new clinical trial of a drug was shown to safely reduce the viral load and clinical illness of healthy adult volunteers intranasally infected with respiratory syncytial virus (RSV). RSV is the most common cause of lower respiratory tract infections in young children in the United States and worldwide. It hospitalizes 125,000 children in the United States each year, and was the cause for 1.5 million outpatient visits.

New type of cell movement discovered

Posted: 28 Aug 2014 11:27 AM PDT

Scientists have used an innovative technique to study how cells move in a three-dimensional matrix, similar to the structure of certain tissues, such as the skin. They discovered an entirely new type of cell movement whereby the nucleus helps propel cells through the matrix like a piston in an engine.

HIV Lessons from the Mississippi Baby

Posted: 28 Aug 2014 11:26 AM PDT

The news in July, 2014 that HIV had returned in a Mississippi toddler after a two-year treatment-free remission dashed the hopes of clinicians, HIV researchers and the public at large tantalized by the possibility of a cure. But a new commentary by two leading HIV experts argues that despite its disappointing outcome, the Mississippi case and two other recent HIV "rebounds" in adults, have yielded critical lessons about the virus' most perplexing — and maddening — feature: its ability to form cure-defying viral hideouts.

Respiratory infection controls being used for Ebola patients are unnecessary, may contribute to public panic

Posted: 28 Aug 2014 10:55 AM PDT

Respiratory infection control measures -- which have been adopted by most health agencies to deal with the Ebola epidemic in west Africa -- are unnecessary, and may heighten panic and fear among the public, according to the authors of a new paper.

How studying damage to prefrontal lobe has helped unlock the brain's mysteries

Posted: 28 Aug 2014 10:55 AM PDT

Until the last few decades, the frontal lobes of the brain were shrouded in mystery and erroneously thought of as nonessential for normal function. Now a review highlights groundbreaking studies of patients with brain damage that reveal how distinct areas of the frontal lobes are critical for a person's ability to learn, multitask, control emotions, socialize, and make decisions. The findings have helped experts rehabilitate patients experiencing damage to this brain region.

Cicada study discovers two genomes that function as one

Posted: 28 Aug 2014 10:55 AM PDT

While studying cicadas, researchers discovered that Hodgkinia had subtly become more complex through a speciation event, in which the original lineage split to produce two separate but interdependent species of Hodgkinia. What was previously thought to be a tripartite, or a three-way symbiosis, is now proven to actually be a four-way symbiosis.

Zombie bacteria are nothing to be afraid of

Posted: 28 Aug 2014 10:52 AM PDT

The first experimental evidence has been obtained that there are at least two fail-safe points in the bacterial cell cycle. If the fail-safes are activated, the cell is forced to exit the cell cycle forever. It then enters a zombie-like state and is unable to reproduce even under the most favorable of conditions. Drugs that trigger the fail-safes are already under development.

Sensory-tested, woman-initiated drug-delivery vehicle could limit spread of HIV, AIDS

Posted: 28 Aug 2014 08:53 AM PDT

A unique method for delivering compounds that could positively impact the global battle against HIV and AIDS may be possible, American researchers say. A semi-soft vaginal suppository made from the seaweed-derived food ingredient carrageenan and loaded with the antiviral drug Tenofovir provides a woman-initiated, drug-delivery vehicle that can protect against the spread of sexually transmitted infections during unprotected heterosexual intercourse, they report

New analytical technology reveals 'nanomechanical' surface traits

Posted: 28 Aug 2014 08:53 AM PDT

A new research platform uses a laser to measure the 'nanomechanical' properties of tiny structures undergoing stress and heating, an approach likely to yield insights to improve designs for microelectronics and batteries.

Females ignored in basic medical research, experts say

Posted: 28 Aug 2014 08:53 AM PDT

Surgical researchers rarely use female animals or female cells in their published studies, researchers say, despite a huge body of evidence showing that sex differences can play a crucial role in medical research.

New solutions needed to recycle fracking water, experts say

Posted: 28 Aug 2014 08:53 AM PDT

Scientists have produced a detailed analysis of water produced by hydraulic fracturing of three gas reservoirs and suggested environmentally friendly remedies are needed to treat and reuse it.

Protected areas proven to protect biodiversity

Posted: 28 Aug 2014 08:09 AM PDT

Protected areas conserve biodiversity, experts say, and more action is needed to ensure safeguards are in place to protect these areas. "Our work has now shown that protected areas have significant biodiversity benefits. In general, plant and animal populations are larger and more species are found inside rather than outside protected areas. In other words, protected areas are doing their job," they report.

This is your brain's blood vessels on drugs

Posted: 28 Aug 2014 08:09 AM PDT

A laser-based method has been used to produce the first-ever set of images clearly and directly detailing how cocaine shuts down blood flow in the brain. This could help doctors and researchers better understand how drug abuse affects the brain, which may aid in improving brain-cancer surgery and tissue engineering, and lead to better treatment for recovering drug addicts.