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Feb 28, 2009

What is cryopreservation?

Cryopreservation (freezing at super cold temperatures) of tissue and cells is a technique which puts the cells in suspended animation where they can retain their viability indefinitely. Cryopreservation protects against catastrophic losses caused by such events as disease outbreaks, fire, breeding cessation, or genetic contamination and eliminates the necessity of maintaining stocks 'on the shelf' when those stocks are not being actively used. Cryobiology improved rapidly with the discovery of the beneficial effects of cryoprotectant substances that are added to cell freezing solutions. Cryopreservation is now routinely used to store semen, embryos and all types of cells/tissue of animals and humans.

Feb 21, 2009

What is helicopter parenting?

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What is helicopter parenting?

It's a colloquial term that refers to a style of parenting which involves paying extremely close attention to children. It's also called overparenting. It gets its name from the fact that parents hover over children like a helicopter, to make sure they aren't harmed in any way. This particularly pertains to school-related problems. It can be detrimental for children who end up being overprotected.

What is the Latur pattern of study?


The Latur pattern of study involves continuous and methodical practice of model question papers months before the board exams. This method was devised by principal Aniruddha Jadhav of Rajarishi Shahu College in Latur, who felt this mechanical methodology of continuous study helps students in providing point-to-point answers to questions which could be expected in the examination. This methodology, however, has been lambasted by educationists who consider it a tool to gain temporary advantage that does not aim to prepare them for advanced learning.

Feb 2, 2009

What is synchronised and circular trading in the stock exchange?

A synchronised trade is a transaction wherein the buy and sell order quantities are identical, and are put through at exactly the same time on the trading platform. Circular trades in a particular scrip happen when a closely knit set of market entities, mainly brokers, buy and sell shares frequently among themselves to push up the stock price. Since there are no genuine intentions to trade in the case of circular trades, the trading volumes thus generated are referred to as artificial volumes.

What is an electron gun?

It is a device in the back of a "cathode ray tube" television or computer monitor (pre-plasma or LCD flat-panel). The electron gun fires a stream of electrons from the back of the TV onto the inside face of the screen, which is coated with a material that glows when hit by electrons. By using powerful magnets to direct the stream across the screen, a series of dots ('pixels') is built over the screen which appears as an image.