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Thursday, April 1, 2021

World thanks India for "Vaccine Maitri" ~ Pascal's law .. .. jabs and more !!


In good old days, to scare the crying children – they used to say – ‘will take you to Doctor – who will put an injection’ !! for some the fear of needles continues in their adulthood too !!!~ the Covid vaccine jab gives a mild pain forgotten in the ‘selfie’ moment !!!!  Also remember that needles would be kept in boiling water to kill harmful bacterias – as those days, the same needles would be used again and again – not any longer in this age of ‘use-and-throw’.

West Indies cricketer Chris Gayle on Friday joined a number of cricketing stalwarts from the Caribbean islands to thank India and Prime Minister Narendra  Modiji  for donating COVID-19 vaccines to their countries. Gayle shared a message thanking India and PM Modi and called on the Indian High Commssioner there to express gratefulness. The High Commission of India in Kingston, Jamaica and for Bahamas, CaymanIslands, Turks and Caicos, and British Virgin Islands also posted his message on its Twitter account. "He thanked India for gifting the COVID19 Vaccines to Jamaica and shared how much he loves being in India," it added.

Earlier, West Indies, whose cricket team is represented by players from a number of sovereign Caribbean islands, cricketing giants like legendary Viv Richards, Richie Richardson and Jimmy Adams had shared similar messages to thank the Indian government for sending the vaccines to their countries.  India has donated the COVID-19 vaccines to a number of countries as part of the "Vaccine Maitri" exercise.

Pascal's law is a principle in fluid mechanics given by Blaise Pascal that states that a pressure change at any point in a confined incompressible fluid is transmitted throughout the fluid such that the same change occurs everywhere. The law was established by French mathematician Blaise Pascal in 1653 and published in 1663.  Blaise Pascal  was a French mathematician, physicist, inventor, philosopher, writer and  theologian. He was a child prodigy who was educated by his father, a tax collector in Rouen. Pascal's earliest mathematical work was on conic sections; he wrote a significant treatise on the subject of projective geometry at the age of 16.  In 1642, while still a teenager, he started some pioneering work on calculating machines (called Pascal's calculators and later Pascalines), establishing him as one of the first two inventors of the mechanical calculator.

From the time we were young children, most of us have feared going to the doctor and getting an injection.  The use of syringes (a.k.a. needles) usually means the administration of medicines or vaccines - A syringe is simply a tube with a snuggly fit plunger that pushes a liquid through a needle or tubing. This can be a vaccine to avoid a virus such as Covid 19  or simply any medicine in liquid form. A syringe can be used to inject liquid nutrients into a feeding tube or even for life-saving medication for an allergic reaction or insulin. While all syringes mechanically operate in the same manner, there are some differences in needles and syringes.  

An injection (often referred to as a "shot" in US English, a "jab" in UK English)  is the act of administering a liquid, especially a drug, into a person's body using a needle (usually a hypodermic needle) and a syringe.  An injection is considered a form of administering drugs via the parenteral route, which refers to routes of administration which do not involve absorption in the digestive tract. This allows the medication to be absorbed more rapidly and avoid the first pass effect.  Injections are among the most common health care procedures, with at least 16 billion administered in developing and transitional countries each year.

An injection necessarily causes a small puncture wound to the body, and thus may cause localized pain or infection. The occurrence of these side effects varies based on injection location, the substance injected, needle gauge, procedure, and individual sensitivity.   Fear of needles, also called needle phobia, is also common and may result in anxiety and fainting before, during, or after an injection. To prevent the localized pain that occurs with injections the injection site may be numbed or cooled before injection and the person receiving the injection may be distracted by a conversation or similar means.  

Syringe is that medical device that is used to inject fluid into, or withdraw fluid from, the body. A medical syringe consists of a needle attached to a hollow cylinder that is fitted with a sliding plunger. The downward movement of the plunger injects fluid; upward movement withdraws fluid. Medical syringes were once made of metal or glass, and required cleaning and sterilization before they could be used again. Now most syringes used in medicine are plastic and disposable.

Clean and sterile syringe needles are needed for all intravenous extractions or introduction procedures. Clean needles ensure that the patients do not get infected with any microorganisms or other patients infected blood.  Today read a report quoting Mr Rajiv Nath, who heads India's largest syringe factory, stating that  he is turning down as many as 40 requests for syringes from across the world. Mr Nath's Hindustan Syringes & Medical Devices (HMD) is in huge demand now as countries try to ramp up vaccination against Covid-19. The factory is currently producing some four million syringes a day but Mr Nath says that's still not enough given that the world needs 10 billion syringes to vaccinate just 60% of its population. He hopes that better coordination between the WHO, governments and syringe makers will smooth the way going forward.

The first experiments with intravenous injections were carried out in 1642 by a gentleman's hunting servant in eastern Germany. Similar experiments were done in 1656 by Christopher Wren, the astronomer, mathematician, and architect in Oxford, England, and a group of scientists around the physicist Robert Boyle.  Blaise Pascal, a child prodigy is credited with the invention of syringe.  Throughout his life, Pascal was in frail health, especially after the age of 18; he died just two months after his 39th birthday. Colin Albert Murdoch ONZM (1929 – 2008) was a New Zealand pharmacist and veterinarian who made a number of significant inventions, in particular the tranquilliser gun, the disposable hypodermic syringe and the child-proof medicine container. He had a total of 46 patents registered in his name.

Interesting !


With regards – S. Sampathkumar


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