The data we collect from the field may sometimes have errors and these errors vary from place to place. Types of Errors in Demographic Data Sampling error of random fluctuation– in this kind of error, it is assumed that you have used the wrong techniques in the selection or collection of your …
Vital registration is the registration of vital events. The idea of vital registration or the concept of vital registration of birth, death and migration is very important in demography. Definition of Vital Registration The UN handbook on vital registration defines statistics defines vital registration as a system which includes legal registration, statistical recording, registration and …
The Direct Coombs Test (DCT Test) is also called Direct Antiglobulin Test (DAT Test). The direct Coombs test was the older term used to describe this test and it is a test used to detect antibodies or complement against red blood cells (RBCs). The presence of these antibodies or complement on the …
Schilling Test Definition Schilling test can be defined as an investigation that is done to detect rate of Vitamin B12 (Cobalamin) absorption by use of radioactive Cobalamin; it also helps to know if the body is producing Intrinsic factor (a protein produced by the stomach that helps in absorption of vitamin B12. …
Demography Definition Demography is a systematic study or body of knowledge that has been derived through the scientific application of knowledge to answer population problems. It involves the application and usage of materials which include: gathering and organizing of data, manipulation of data, analysis, description and interpretation of data which are related …
Earthquakes facts An earthquake is a sudden movements, vibration or oscillation in the earth crust caused by sudden release of heat and enormous pressure. There are three types of earthquakes namely: shallow, intermediate and deep earthquakes. The point at which the earthquakes originates is called focus while the point on the earth …
Progesterone Challenge Test (or Progestogen Challenge Test or Progestin Challenge Test PCT or Progesterone Withdrawal Test) is a test that is done to help in the diagnosis of Amenorrhea; this test was used before the development of other assays used in the measurement of serum levels of estradiol. The Progestogen Challenge Test was used to check …
What is Amenorrhea? Amenorrhea or Amenorrhoea can be defined as the absence of period in women; this is mostly caused by Pregnancy but there are other causes other than Pregnancy. When there is no period and you are not pregnant, it means you have Amenorrhea but the cause must be known. It …