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The partial thromboplastin time (PTT), also known as the activated partial thromboplastin time (aPTT or APTT), is a blood test that characterizes coagulation of the blood. A historical name for this measure is the Kaolin-cephalin clotting time ( KCCT ), [ 1 ] reflecting kaolin and cephalin as materials historically used in the test.
Water accounting is a discipline that seeks to provide comprehensive, consistent and comparable policy relevant information related to water. Based on the experience of more than fifty years of national accounts, the discipline that provides the elements to calculate the Gross Domestic Product (GDP), the United Nations Statistics Division (UNSD) developed the System of Environmental and ...
PT measures the following coagulation factors: I (fibrinogen), II (prothrombin), V (proaccelerin), VII (proconvertin), and X (Stuart–Prower factor). PT is often used in conjunction with the activated partial thromboplastin time (aPTT) which measures the intrinsic pathway and common pathway of coagulation.
It is necessary to measure temperatures of both the condensation and evaporation, because the dew point is the equilibrium temperature at which water both condense and evaporate at the same rate. When cooling the mirror, the temperature keeps dropping after it has reached the dew point thus, the condensation temperature measurement is lower ...
Clotting time is a general term for the time required for a sample of blood to form a clot, or, in medical terms, coagulate.The term "clotting time" is often used when referring to tests such as the prothrombin time (PT), activated partial thromboplastin time (aPTT or PTT), activated clotting time (ACT), thrombin time (TT), or Reptilase time.
The E P&L and the associated methodology were developed with the support of PricewaterhouseCoopers and Trucost. [6] The E P&L used existing input-output models and developed new valuation methodologies, building on a large volume of work in the fields of environmental and natural resource economics such as the United Nations study on The Economics of Ecosystems and Biodiversity.
Seasonal factors may prevent year-end values from being representative. A ratio's values may be distorted as account balances change from the beginning to the end of an accounting period. Use average values for such accounts whenever possible. Financial ratios are no more objective than the accounting methods employed.
Water audit is a useful tool to determine the water use efficiency in an irrigation project by accounting water losses. The clear-cut objectives of water audit applicable to irrigation systems include scope of distribution network, deliverables such as yield available and water efficiency, delivery locations/command areas and types of losses.