Our actions, thoughts, perceptions, feelings, and memories are underpinned by electrical activity, which passes through networks of neurons in the brain. As a child grows and gains new skills their brain changes rapidly and brain networks are formed and strengthened with learning and experience.
Osteoarthritis is a chronic condition of the synovial joint. The disease develops over time and most commonly affects the knees, hips and hands, and less commonly the shoulder, spine, ankles and feet. It’s a prevalent, disabling disease, and consequently has a formidable individual and social impact.
Thanks to the recent release of consultation paper titled <“Regulatory Framework for Over-the-top (OTT) services,” for the first time in India’s telecom history close to a million petitions in favour of net neutrality were sent; comparable to millions who responded to Federal Communications Commission’s position paper on net neutrality last year.
I love ebooks. Despite their unimaginative page design, monotonous fonts, curious approach to hyphenation, and clunky annotation utilities, they’re convenient and easy on my aging eyes. But I wish they didn’t come wrapped in legalese. Whenever I read a book on my iPad, for example, I have tacitly agreed to the 15,000-word statement of terms and conditions for the iTunes store. It’s written by lawyers in language so dense and tedious it seems designed not to be read, except by other lawyers, and that’s odd, since these Terms of Service agreements (TOS) concern the use of books that are designed to be read.
As 2.6 million men and women return home from war, the prevalence of veteran suicide and post-traumatic stress is something that is frequently discussed by civilians, politicians, and the media, but seldom understood. These changes extend beyond psychological readjustment, physical handicap, and even loss of life. The greatest wounds, in fact, may not even be visible to the naked eye. While the traditional dialogue concerning veteran assistance typically involves the availability of institutional services, military hospitals, and other resources, there is an increasing need to address what many call the “moral injuries” sustained by soldiers during combat.
Does coffee enhance marijuana? A study published recently in the Journal of Neuroscience by neuroscientists from the Integrative Neurobiology Section of the National Institute on Drug Abuse, a branch of the National Institutes of Health, has finally provided a definitive answer: Yes, No, and it depends.
DNA is the foundation of life. It codes the instructions for the creation of all life on Earth. Scientists are now reading the autobiographies of organisms across the Tree of Life and writing new words, paragraphs, chapters, and even books as synthetic genomics gains steam. Quite astonishingly, the beautiful design and special properties of DNA makes it capable of many other amazing feats. Here are five man-made functions of DNA, all of which are contributing to the growing “industrial-DNA” phenomenon.
Since evolution became the primary framework for biological thought, we have been fascinated—sometimes obsessed—with the origins of things. Darwin himself was puzzled by the seemingly sudden appearance of angiosperms (flowering plants) in the fossil record. In that mid-Cretaceous debut, they seemed to be diversified into modern families already, with no evidence of what came before them. This was Darwin’s famous “abominable mystery.”
The Obamacare “Cadillac tax” is currently scheduled to go into effect in 2018. However, last week, sixty-six members of the House of Representatives, including both Republicans and Democrats, proposed to repeal the Cadillac tax before it becomes effective. The Cadillac tax will be imposed at a 40% rate on the cost of health care insurance, exceeding statutorily-established thresholds. Unions and many of their Democratic stalwarts, otherwise supportive of Obamacare, oppose the Cadillac tax because generous union-sponsored health care plans will trigger the tax.
Given the highly scientific and technical nature of medical practice, it is tempting to assume that the system of residency training developed in response to intellectual forces within medicine. There is much truth to this. After all, the need to learn scientific concepts and principles, to develop skills of critical reasoning, to acquire the capacity to manage uncertainty, to master technical procedures, and to learn how to assume responsibility for patient care all reflected powerful professional demands.
Light occupies a central place in our understanding of the world both as a means by which we locate ourselves in nature and as a thing that inspires our imagination. Light is what enables us to see things, and thus to navigate our surroundings. It is also a primary means by which we learn about the world – light beams carry information about the constituents of the universe, from distant stars and galaxies to the cells in our bodies to individual atoms and molecules.
Mathematics is used in increasingly sophisticated ways in modern society, explicitly by experts who develop applications and implicitly by the general public who use technological devices. As each of us is taught a broad curriculum in school and then focuses on particular specialisms in our adult life, it is useful to ask the question ‘what does it mean to make sense of mathematics?’.
During the first run of my Coursera course on the bilingual brain, a student asked whether changing languages leads to people changing personalities. Considerable discussion ensued about this on the forums. My initial answer was that language was a marker of a set of circumstances and as such was likely to be accompanied by a shift in context.
In our study analyzing data from the New England Centenarian Study, we found that for people who live to 90 years old, the chance of their siblings also reaching age 90 is relatively small – about 1.7 times greater than for the average person born around the same time.
Most scientific inquires, referring to animals en masse, neglect the idea of individuality among animals. However, disregarding this academic approach, many people view their animal companions as family members. Dogs, often called ‘man’s best friend,’ are no exception. Despite this old saying, science had generally neglected research on dogs until the end of the 19th century.
Today, 25 April is a joint celebration for geneticists, commemorating the discovery of the helix nature of DNA by James Watson and Francis Crick in 1953 and the completion of the human genome project fifty years later in 2003. It may have taken half a century to map the human genome, but in the years since its completion the field of genetics has seen breakthroughs increase at an ever-accelerating rate.