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Biological classification

Biological classification
The hierarchy of biological classification's eight major taxonomic ranks. Intermediate minor rankings are not shown. Modern biological classification has its root in the work of Carolus Linnaeus, who grouped species according to shared physical characteristics. These groupings have since been revised to improve consistency with the Darwinian principle of common descent. With the introduction of the cladistic method in the early 20th century, formalized by Willi Hennig in the mid-20th century, phylogenetic taxonomy in which organisms are grouped purely on inferred evolutionary relatedness (based either on classical evidence of morphology, chemistry, physiology, ecology or molecular evidence or both) has become common in biology.[1] Molecular phylogenetics, which uses DNA sequences as data, has driven many recent revisions and is likely to continue doing so. Biological classification belongs to the science of biological systematics. Definition[edit] Biological types[edit] Early systems[edit]

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Nosology Nosology (from Ancient Greek νόσος (nosos), meaning "disease", and -λογία (-logia), meaning "study of-") is a branch of medicine that deals with classification of diseases. Types of classification[edit] A chief difficulty in nosology is that diseases often cannot be defined and classified clearly, especially when etiology or pathogenesis are unknown. Thus diagnostic terms often only reflect a symptom or set of symptoms (syndrome). History[edit] In the 18th century, the taxonomist Carolus Linnaeus, Francois Boissier de Sauvages, and psychiatrist Philippe Pinel developed an early classification of physical illnesses. What you need to know about artificial intelligence, and the imminent robot future Do androids dream of electric sheep? That's unclear, but I know for sure that every kid dreams of intelligent, thinking robots -- certainly every kid who goes on to work at CNET, in any case. Today, my sci-fi-fuelled childhood fantasies of a bot with a "brain the size of a planet" are closer than ever to being realised.

Classification of mental disorders The classification of mental disorders, also known as psychiatric nosology or taxonomy, is a key aspect of psychiatry and other mental health professions and an important issue for people who may be diagnosed. There are currently two widely established systems for classifying mental disorders—Chapter V of the International Classification of Diseases (ICD-10) produced by the World Health Organization (WHO) and the Diagnostic and Statistical Manual of Mental Disorders (DSM-5) produced by the American Psychiatric Association (APA). Both list categories of disorders thought to be distinct types, and have deliberately converged their codes in recent revisions so that the manuals are often broadly comparable, although significant differences remain. Other classification schemes may be in use more locally, for example the Chinese Classification of Mental Disorders. Other manuals have some limited use by those of alternative theoretical persuasions, such as the Psychodynamic Diagnostic Manual.

Robots master skills with ‘deep learning’ technique Robot learns to use hammer. What could go wrong? (credit: UC Berkeley) Outline of physical science Physical science is the study of physics and chemistry of nature.[citation needed] From the materialist and functionalist viewpoints it overlaps the life sciences where ecology studies the evidences of historical facts or evolution. Natural sciences bridge the phenomena in the physical sciences to the noumenon in the life sciences. The following is presented as an overview and topical guide of these physical sciences. General principles of the physical sciences[edit] The foundations of the physical sciences rest upon key concepts and theories, each of which explains and/or models a particular aspect of the behavior of nature.

Consciousness: Eight questions science must answer Consciousness is at once the most familiar and the most mysterious feature of our existence. A new science of consciousness is now revealing its biological basis. Once considered beyond the reach of science, the neural mechanisms of human consciousness are now being unravelled at a startling pace by neuroscientists and their colleagues. I've always been fascinated by the possibility of understanding consciousness, so it is tremendously exciting to witness – and take part in – this grand challenge for 21st century science. Here are eight key questions that neuroscientists are now addressing: 1.

Bethlem Royal Hospital The Bethlem Royal Hospital is a hospital for the treatment of mental illness located in London, United Kingdom and part of the South London and Maudsley NHS Foundation Trust. Although it has moved three times from its original location, it is recognised as Europe's first and oldest institution to specialise in mental illnesses. It has been known by various names including St Mary Bethlehem, Bethlem Hospital, Bethlehem Hospital and, informally and most notoriously, Bedlam. The Hospital is closely associated with King's College London and in partnership with the King's College London Institute of Psychiatry is a major centre for psychiatric research. It is part of both the King's Health Partners academic health science centre and the NIHR Biomedical Research Centre for Mental Health. Originally the hospital was sited near Bishopsgate just outside the walls of the City of London.

The Three Laws of Transhumanism and Artificial Intelligence Wikimedia Commons I recently gave a speech at the Artificial Intelligence and The Singularity Conference in Oakland, California. There was a great lineup of speakers, including AI experts Peter Voss and Monica Anderson, New York University professor Gary Marcus, sci-fi writer Nicole Sallak Anderson, and futurist Scott Jackisch. All of us are interested in how the creation of artificial intelligence will impact the world. My speech topic was: The Morality of an Artificial Intelligence Will be Different from our Human Morality Recently, entrepreneur Elon Musk made major news when he warned on Twitter that AI could be: "Potentially more dangerous than nukes."

Whip A leather cat o' nine tails pictured with a U.S. dollar bill for size comparison. A set of romal reins, featuring a quirt at the end of the romal A whip is a tool traditionally used by humans to exert control over animals or other people, through pain compliance or fear of pain, although in some activities whips can be used without use of pain, such as an additional pressure aid in dressage. Whips are generally of two types, either a firm stick device designed to strike directly, or a flexible whip which must be swung in a specific manner to be effective, but has a longer reach. There are also whips which combine both a firm stick (the stock or handle) and a flexible line (the lash or thong), such as hunting whips. The majority of whips are designed for use on animals, although whips such as the "cat o' nine tails" and knout were designed specifically for flagellation of humans as a means of a corporal punishment or torture.

What will happen when the internet of things becomes artificially intelligent? When Stephen Hawking, Bill Gates and Elon Musk all agree on something, it’s worth paying attention. All three have warned of the potential dangers that artificial intelligence or AI can bring. The world’s foremost physicist, Hawking said that the full development of artificial intelligence (AI) could “spell the end of the human race”. Musk, the tech entrepreneur who brought us PayPal, Tesla and SpaceX described artificial intelligence as our “biggest existential threat” and said that playing around with AI was like “summoning the demon”. Gates, who knows a thing or two about tech, puts himself in the “concerned” camp when it comes to machines becoming too intelligent for us humans to control. What are these wise souls afraid of?

Age of Enlightenment The Enlightenment (also known as the Age of Enlightenment or the Age of Reason;[1] in French: le Siècle des Lumières, lit. 'the Century of Lights'; and in German: Aufklärung, 'Enlightenment')[2] was an intellectual movement which dominated the world of ideas in Europe during the 18th century, The Century of Philosophy.[3] The Enlightenment included a range of ideas centered on reason as the primary source of authority and legitimacy, and came to advance ideals like liberty, progress, tolerance, fraternity, constitutional government, and separation of church and state.[4][5] In France, the central doctrines of les Lumières were individual liberty and religious tolerance in opposition to an absolute monarchy and the fixed dogmas of the Roman Catholic Church. The Enlightenment was marked by an emphasis on the scientific method and reductionism along with increased questioning of religious orthodoxy—an attitude captured by the phrase Sapere aude, "Dare to know".[6]

Darpa sets out to make computers that teach themselves The Pentagon's blue-sky research agency is readying a nearly four-year project to boost artificial intelligence systems by building machines that can teach themselves -- while making it easier for ordinary schlubs like us to build them, too. When Darpa talks about artificial intelligence, it's not talking about modelling computers after the human brain. That path fell out of favour among computer scientists years ago as a means of creating artificial intelligence; we'd have to understand our own brains first before building a working artificial version of one. But the agency thinks we can build machines that learn and evolve, using algorithms -- "probabilistic programming" -- to parse through vast amounts of data and select the best of it. After that, the machine learns to repeat the process and do it better. But building such machines remains really, really hard: The agency calls it "Herculean".

Moral treatment Moral treatment was an approach to mental disorder based on humane psychosocial care or moral discipline that emerged in the 18th century and came to the fore for much of the 19th century, deriving partly from psychiatry or psychology and partly from religious or moral concerns. The movement is particularly associated with reform and development of the asylum system in Western Europe at that time. It fell into decline as a distinct method by the 20th century, however, due to overcrowding and misuse of asylums and the predominance of biomedical methods. The movement is widely seen as influencing certain areas of psychiatric practice up to the present day. The approach has been praised for freeing sufferers from shackles and barbaric physical treatments, instead considering such things as emotions and social interactions, but has also been criticised for blaming or oppressing individuals according to the standards of a particular social class or religion.