Sleepwalking is a parasomnia or sleep disorder where the sufferer engages in activities that are normally associated with wakefulness while he or she is asleep or in a sleep-like state. Sleepwalking is usually defined by or involves the person affected apparently shifting from his or her prior sleeping position and moving around and performing normal actions as if awake . It is inexact to assume that somnambulists are unconscious during their nocturnal sleepwalking episodes. They are simply not conscious of their actions on a level where memory of the sleepwalking episode can be recalled, and because of this, unless the sleepwalker is awakened or aroused by someone else, this sleep disorder can go unnoticed. Sleepwalking is more commonly experienced in people with high levels of stress, anxiety or psychological factors and in people with genetic factors , or sometimes a combination of both.

A common misconception is that sleepwalking is acting out the physical movements within a dream, but in fact, sleepwalking occurs earlier on in the night when rapid eye movement (REM), or the "dream stage" of sleep, has not yet occurred.

OIL PAINTING

Oil painting is the process of painting with pigments that are bound with a medium of drying oil — especially in early modern Europe, linseed oil. Often an oil such as linseed was boiled with a resin such as pine resin or even frankincense; these were called 'varnishes' and were prized for their body and gloss. Other oils occasionally used include poppyseed oil, walnut oil, and safflower oil. These oils confer various properties to the oil paint, such as less yellowing or different drying times. Certain differences are also visible in the sheen of the paints depending on the oil. Painters often use different oils in the same painting depending on specific pigments and effects desired. The paints themselves also develop a particular feel depending on the medium.

JOURNALISM SCHOOL

Though the world is ruled by government ,the government is activated by journalism .but such journalists are trained in schools where they are given special trainig for the improvement of their skills .A journalism school is a school or department, usually part of an established university, where journalists are trained. An increasingly used short form for a journalism department, school or college is 'j-school'. Many of the most famous and respected journalists of the past and present had no formal training in journalism, but learned their craft on the job, often starting out as copy boys/copy girls. Today, in many parts of the world it is usual for journalists to first complete university-level training which incorporates both technical skills such as research skills, interviewing technique and shorthand and academic studies in media theory, cultural studies and ethics.

Historically, in the United Kingdom entrants used first to complete a non media-studies related degree course, giving maximum educational breadth, prior to taking a specialist postgraduate pre-entry course. However, this has changed over the last ten years with journalism training and education moving to higher educational institutions. There are now over 60 universities in the UK offering BA honours degrees in journalism.

ELECTRONICS

Electronics is the study of the flow of charge through various materials and devices such as semiconductors, resistors, inductors, capacitors, nano-structures and vacuum tubes. Although considered to be a theoretical branch of physics, the design and construction of electronic circuits to solve practical problems is an essential technique in the fields of electronic engineering and computer engineering. This science starts about 1908 with the invention by Dr Lee De Forest of the valve .Before 1950 this science was named "Radio" or "Radio technics" because that was its principal application.

The study of new semiconductor devices and surrounding technology is sometimes considered a branch of physics. This article focuses on engineering aspects of electronics.