S.D tutorials

Defination:   The  Drugs and Cosmetics Act, 1940  is an  act of the Parliament of India  which regulates the import, manufacture and distribution of drugs in  India . [1]  The primary objective of the act is to ensure that the drugs and cosmetics sold in India are safe, effective and conform to state quality standards. [2]  The related  Drugs and Cosmetics Rules, 1945  contains provisions for classification of drugs under given schedules and there are guidelines for the storage, sale, display and prescription of each schedule Amendments: The act has been amended several times. The following are a list of amending acts: The Drugs (Amendment) Act, 1960 (35 of 1960) The Drugs (Amendment) Act, 1962 (21 of 1962) The Drugs and Cosmetics (Amendment) Act, 1964 (13 of 1964) The Drugs and Cosmetics (Amendment) Act, 1972 (19 of 1972) The Drugs and Cosmetics (Amendment) Act, 1982 (68 of 1982) The Drugs and Cosmetics (Amendment) Act, 1986 The Drugs a...

  Pathophysiology practice paper: 1. Which of the following is not a major role of hormon .         a. Grouth stimulation          b.Erythrocyte synthesis          c.Fluid balance and regulation          d.Metabolic rate regulation ans: B 2.Release of Hormons from gland is most often controlled by        a.Negstive feedback mechanisim         b.Nephrojenic mechanisims        c.Atopic hormon production        d.Active transpoart ans:A 3.Most common cause of Andocrine desorders is :       a.Surgical Removal of andocrine gland       b.Infection       c.Adenomas       d.Immunodeficiency ans:c 4.What is not a function of Culcium :      a.Bones and teeth formation      b.Blood cuagulation       c.Cadiac...

  Pathophysiology of Asthma:                                                            Asthma defination: Asthma is a chronic inflammatory disease of the airways in which variable periodic symptoms occurs, along with air flow obstruction,and bronchial hyper-responsiveness, is termed asthma. Types: 1.Extrinsic:This type is initiated by a type-1 hypersensitivity(atopic) response to an extrinsic antigen. 2.Intrinsic: This type is initiated by non-immune mechanisms,such as respiratory tract infections,exercise,aspirin,emotional upset and exposure to bronchial irritants Asthma was reclassified in to following type: 1.Atopic Asthma: This Asthma is of type I IgE-mediated hypersensitivity reaction.The attack of atopic asthma is caused by allergens in dust,pollen,animal dander,food etc. 2.Non-atopic Asthma: The asthmatic pateints do not show ...

  WATER: An important cause of the ill health in underdeveloped countries is the lack of safe drinking water. It should be free from pathogenic agents and harmful chemical substances ,pleasant taste and usable for domestic purpose. An average daily supply of 150-200 liters per head is considered the optimum quantity. Sources of water supply: The two important consideration for selecting a proper source are: (a) Quality of water must be acceptable (b) Quantity must be enough to meet the present requirements Three main sources  of  water are 1. Rain water 2. Surface water 3.Ground water Rain water: Rain water that sinks into the ground forms ground water, and that runs off to form streams,rivers and tanks. Surface water:  The surface water sources include   (a) Impounding Reservoirs:       These are artificial lakes constructed usually of masonry in which large quantities of surface water is stored.      (b) Rivers: Many rivers provid...

 Rheology: Defination:  The term  "Rheology " derived from the Greek words, Rheo means "to flow" and logos means "science"  Rheology can be defined as the science concerened with the deformation of matter under the influence of stress,which may be applied perpendicularly to the surface of body,tangential to the surface of body or at any other angle to the surface of body. The result of application of a stress may be divided into two types:         (i)Elastic deformation: It is a reversible process ,deformation is recoverable when the body returns to its original position.         (ii) Plastic deformation: It is a irreversible deformation, The work spent for the deformation is dissolute as heat. Flow is dived into two types (i) Newtonian: Liquids which follow Newton's law of viscous flow are known as newtonian liquid. example: water, true solution,dilute suspensions (ii) Non-Newtonian: Liquids which does not follow Newton's law ...