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How is blood stored in blood bank?

Blood is collected into a plastic bag for blood collection & storage which contains anticoagulant/buffers etc. which allow storage of blood. These include citrate-phosphate dextrose (CPD), acid-citrate dextrose (ACD), ACD or CPD with adenine to prolong red cell storage, and other preservative solutions like SAGM etc. If red cells are preserved in SAGM solution then their life goes upto 42 days. The CPD solution preserves whole blood for 21 days whereas CPDA solution preserves blood for 35 days. The material of the bag is biocompatible with blood cells and allows diffusion of gases permitting optimal cell preservation. The specimen thus collected is tested for hepatitis B & C, HIV and other infections. The blood is stored in refrigerators at 2 to 6 degrees C. Each unit of whole blood normally is separated into several components. Red blood cells may be stored under refrigeration for a maximum of 42 days, or they may be frozen for up to 10 years. Red cells carry oxygen and are us

What does Captcha [ C.A.P.T.C.H.A ] stand for?

​​ What does Captcha [ C.A.P.T.C.H.A ] stand for ? Captcha stands for: Completely Automated Public Turing test to tell Computers and Humans Apart. It is used by many websites to make it harder for automated bots to download information from them. This bots are usually made by hackers and so many websites use this technology to counter them. it's not always successful because the bots are getting more sophisticated.

What is Black Box?

​​ What is Black Box? The Black Box or Flight Data Recorder of an Airplane is an instrument which records all the activities of the airplane during its flight. From the security point of view, this box is generally kept at the back side of the airplane. This Box is made of Titanium metal and is enclosed in a Titanium box which gives it strength to withstand any shock if it falls in sea or falls from the height. It can work for 30 days without any electricity. It can withstand a temperature of 11000°C. When this box is lost anywhere, it keeps on emitting the waves along with a beep sound for about 30 days. This voice can be identified by the investigators from a distance of about 2-3 Kilometers. An interesting fact with regard to Black box is that it can emit waves from the depth of 14000 feet in the sea.

Morning post

जिद चाहिए जीतने के लिए... हारने के लिए तो डर ही काफी है 🌞 सुप्रभात मित्रों 🌞

How do Bees make Honey?

​​ How do Bees make Honey? You may have seen HoneyBees buzzing around flowers. If you watch them without getting too close, you will see them crawl right down into a flower. They are searching for a few drops of the sweet nectar, or sugar water, that the flower makes. The bee will carry a load of nectar from a lot of flowers back to the hive. Then the bees will use their wings to move a little draft of air to evaporate most of the water. What's left is honey.

Makarsankranti 2019

Bandra Premier League 2019

Bandra Premier League Box Cricket 07.01.2019