Neuroscientists have long demonstrated that neuronal connections in the brain can be strengthened with neuronal activity in the process known as neuroplasticity, and that brain training can be the ideal remedy to sharpen the human mind and to slow down the progress of neurodegeneration. However, recent studies revealed that too much thinking can actually be detrimental to the brain, causing profound DNA damage often dubbed as the DNA double-stranded breakages (DSBs).
DSBs are identified by the accumulation of gH2A.X histone- a recruiter of the DNA-repair machinery- at the site of breakage, and are previously thought to be caused only by cell stress.
The common perception is that cancer develops because of gradual mutations over time, finally overwhelming the ability of a cell to control growth. A look at genomes in prostate cancer found instead that genetic mutations occur in abrupt, periodic bursts, causing complex, large scale reshuffling of DNA driving the development of prostate cancer.
The researchers dub this process "punctuated cancer evolution," akin to the theory of human evolution that states changes in a species occur in abrupt intervals. After discovering how DNA abnormalities arise in a highly interdependent manner, the researchers named these periodic disruptions in cancer cells that lead to complex genome restructuring "chromoplexy."
School violence has always been an important social issue world-wide because it poses a significant threat to the health, achievement, and well-being of students.
Chronic myeloid leukemia (CML) is now considered a highly curable disease, thanks to the emergence of powerful, targeted CML therapies known as tyrosine kinase inhibitors (TKIs) that allow patients to manage their disease with few symptoms by taking a well-tolerated pill.
Since the introduction of TKI therapy more than a decade ago, the annual mortality of patients with this disease has declined from 10 to 20 percent in the early 2000s to just 2 percent today and the estimated 10-year survival of CML patients has increased from 20 percent to more than 80 percent.
A paper in Journal of Affective Disorders
found that belief in God was correlated to improved outcomes for those receiving short-term treatment for psychiatric illness.
Dr. David H. Rosmarin, McLean Hospital clinician and instructor in the Department of Psychiatry at Harvard Medical School, examined individuals at the Behavioral Health Partial Hospital program at McLean in an effort to investigate the relationship between patients' level of belief in God, expectations for treatment and actual treatment outcomes.
Army physician William Beaumont was stationed at Fort Mackinac on Mackinac Island in Michigan in the early 1820s, when it existed to protect the interests of the American Fur Company. The fort became the refuge for a wounded 19-year-old French-Canadian fur trader named Alexis St. Martin when a shotgun went off by accident in the American Fur Company store and duck shot tore into his abdomen at close range June 6th, 1822.
That accident is key to much of our early knowledge about the workings of the digestive system, say speakers at the Experimental Biology 2013 meeting.
Mymaridae, commonly known as fairyflies, are one of about 18 families of chalcid wasps. Fairyflies are everywhere except Antarctica and include the world's smallest known insect - Kikiki huna, the body length of which is only 0.13 millimeters.
Fairyflies are among the most common chalcid wasps but seldom noticed by humans because of their minute size. Their apparent invisibility and delicate wings with long fringes invoke imagery of mythical fairies and earned them their common name.
Computer memory works on the basis of electrons that are moved around and stored. Electrons are small and, when it comes to insuring that information will not be lost over time, can be difficult to control using relatively thick insulator walls, so that information will not be lost over time.
The physics issues limit storage density and cost the system a great deal of energy so researchers pursue nanoelectronic components that make use of ions, i.e. charged atoms, for storing data. Ions are some thousands of times heavier that electrons and are therefore much easier to 'hold down'. In this way, the individual storage elements can almost be reduced to atomic dimensions, which enormously improves the storage density.
Mothers are more likely than fathers or childless people to leave jobs that require long hours - unless the occupations are female-dominated, according to sociologists.
More than one-third of men and nearly one-fifth of women work more than 50 hours a week. Mothers are far fewer than fathers in those numbers. What explains that? Are male-dominated jobs harder on mothers or do some occupations become female-dominated because they are more conducive to women with kids? Does that explain the difference in income? Male-dominated engineering pays women in America better than any other field while heavily female occupations such as environmentalism and social work pay women far worse than men.
Factor one: Facial hair (of the right length)
“A within-subjects design employed one condition (facial hair) incorporating five levels (clean-shaven, light stubble, heavy stubble, light beard and full beard).”-->
In a recent study, an area of the brain that initiates behavioral changes had greater activation in smokers who watched anti-smoking ads with strong arguments than ads with clever tricks like loud sounds and unexpected twists - and those smokers had significantly less nicotine metabolites in their urine when tested a month after viewing those ads.