Coma

In medicine, coma (from the Greek κῶμα koma, meaning "deep sleep") is a state of unconsciousness in which a person: cannot be awakened; fails to respond normally to painful stimuli, light, or sound; lacks a normal wake-sleep cycle; and does not initiate voluntary actions. A person in a state of coma is described as being comatose. Typically, a distinction is made in the medical community between a coma and a medically induced coma, the former is generally understood to be a result of circumstances beyond the control of the medical community, while the latter is generally understood to be a means by which medical professionals may allow a patient's injuries to heal in a controlled environment.

A comatose person exhibits a complete absence of wakefulness and is unable to consciously feel, speak, hear, or move. For a patient to maintain consciousness, two important neurological components must function. The first is the cerebral cortex—the gray matter that forms the outer layer of the brain. The other is a structure located in the brainstem, called reticular activating system (RAS). Injury to either or both of these components is sufficient to cause a patient to experience a coma. The cerebral cortex is a group of tight, dense, "gray matter" composed of the nuclei of the neurons whose axons then form the "white matter", and is responsible for perception, relay of the sensory input (sensation) via the thalamic pathway, and many other neurological functions, including complex thinking.

Angle

In planar geometry, an angle is the figure formed by two rays, called the sides of the angle, sharing a common endpoint, called the vertex of the angle. Angles formed by two rays lie in a plane, but this plane does not have to be a Euclidean plane. Angles are also formed by the intersection of two planes in Euclidean and other spaces. These are called dihedral angles. Angles formed by the intersection of two curves in a plane are defined as the angle determined by the tangent rays at the point of intersection. Similar statements hold in space, for example, the spherical angle formed by two great circles on a sphere is the dihedral angle between the planes determined by the great circles.

Angle is also used to designate the measure of an angle or of a rotation. This measure is the ratio of the length of a circular arc to its radius. In the case of a geometric angle, the arc is centered at the vertex and delimited by the sides. In the case of a rotation, the arc is centered at the center of the rotation and delimited by any other point and its image by the rotation.

Massive Attack

Massive Attack are an English trip hop group formed in 1988 in Bristol, consisting of Robert "3D" Del Naja, Grant "Daddy G" Marshall and formerly Andy "Mushroom" Vowles ("Mush"). Their debut album Blue Lines was released in 1991, with the single "Unfinished Sympathy" reaching the charts and later being voted the 63rd greatest song of all time in a poll by NME. 1998's Mezzanine, containing "Teardrop", and 2003's 100th Window charted in the UK at number 1. Both Blue Lines and Mezzanine feature in Rolling Stone's list of the 500 Greatest Albums of All Time.

The group has won numerous music awards throughout their career, including a Brit Award—winning Best British Dance Act, two MTV Europe Music Awards, and two Q Awards. They have released five studio albums that have sold over 11 million copies worldwide.

History

DJs Daddy G and Andrew Vowles and graffiti artist-turned-rapper Robert Del Naja met as members of partying collective The Wild Bunch. One of the first homegrown soundsystems in the UK, The Wild Bunch became dominant on the Bristol club scene in the mid-1980s.

Satpal Singh

Satpal Singh (born 11 May 1955) also known as Guru Satpal is a wrestling coach and former wrestler of India. He was a Gold Medalist in 1982 Asian Games and a Bronze medalist in 1974 Asian Games.Today he is better known as the coach of two time Olympic medal winner Sushil Kumar.

He was awarded Padma Bhushan, the third highest civilian award of India, in 2015.

Biography

Satpal born on 1 February 1955 in Bawana village in Delhi. He was coached by the famous wrestling coach Guru Hanuman at Hanuman Akhara, Delhi.

Satpal now works as Deputy Director of Education, Delhi. He is also the President of School Games Federation of India. He runs an Akhada for coaching of wrestling with fellow coach Virender Singh from 1988 in Chhatrasal Stadium in Delhi. He trained two time Olympic medal winner, Sushil Kumar for the Beijing Olympics 2008 and London Olympics 2012.

He was awarded Dronacharya Award in 2009 by the Indian Government. Earlier in 1983 he has been awarded by the Padma Shri award.

Awards and achievements