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Prelim Bits 13-08-2018

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August 13, 2018

Parker Solar Probe

  • NASA’s Parker Solar Probe is the mankind’s first mission to ‘touch’ the Sun.
  • Parker Solar probe will perform the closest-ever observations of the Sun’s outer atmosphere, called the corona.
  • Corona is a region of the Sun only seen from Earth when the Moon blocks out the Sun’s bright face during total solar eclipses.
  • This probe will take a seven-year long journey to unlock the mysteries of Sun’s fiery outer atmosphere and its effects on space weather.

SSLV

  • A small Indian satellite launch vehicle has been developed by ISRO, it costs looks set to revolutionise the global satellite launch industry.
  • The Small Satellite Launch Vehicle (SSLV) will be an on-demand rocket for small satellites weighing about 500-700 kg, it will act as a quick response space vehicle.
  • It will be autonomous and highly intelligent, versatile and capable of adapting to different launch situations and requirements.

PEGylated Streptokinase

  • CSIR has developed a Novel Biological Entity (NBE), new Clot buster, PEGylated Streptokinase.
  • Novel Biological Entity (NBE) is a thrombolytic protein for ischemic stroke.
  •  PEGylated Streptokinase would reduce the probability of haemorrhage over current treatment regimens of thrombolytic drugs for acute stroke.
  • This technology is all set to revolutionize the treatment of ischemic strokes.

Ischemic Stroke

  • Deprived of oxygen and other nutrients, the brain suffers damage as a result of the stroke.
  • Ischemic stroke is a condition caused by a dysfunction in the supply of blood to the brain.
  • Ischemic stroke can be divided into two main types:
  1. Thrombotic stroke - It occurs when diseased or damaged cerebral arteries become blocked by the formation of a blood clot within the brain.
  2. Embolic strokes - It is caused by a blood clot or plaque debris that develops elsewhere in the body and then travels to one of the blood vessels in the brain through the bloodstream.

Caspian Sea

  • The Caspian Sea is the largest enclosed inland body of water on Earth by area, variously classed as the world's largest lake or a full-fledged sea.
  • It is an endorheic basin (a basin without outflows) located between Europe and Asia.
  • It is bounded by Kazakhstan to the northeast, Russia to the northwest, Azerbaijan to the west, Iran to the south, and Turkmenistan to the southeast..
  • Recently the five nations which shares borders with Caspian Sea has signed a deal to share the resource-rich Caspian Sea after more than two decades of dispute.

              

 

Source: PIB, the Hindu, Live Mint

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