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Explain about Bioactive materials
Bioactive materials: Certain glasses, ceramics, and glass-ceramics that contain oxides of silicon, sodium, calcium and phosphorus (SiO2 , Na2O, CaO, and P2O5 ) form a chemical bond with bone, resulting in a strong mechanical implant bone bond. These materials do bond to bone through a time-dependent, kinetic modification of the surface triggered by their implantation within living bone. An ion-exchange reaction between the bioactive implant and surrounding body fluids results in the formation of a biologically active calcium phosphate layer on the implant. This layer is chemically and crystallographically equivalent to the mineral phase in bone which is responsible for the strong interfacial bonding.
Point and Non-Point Sources The discharge of effluents in receiving water body at a specific site are referred to a point sources in contrast to the inflow of pollutants in a
Biotechnology: Biotechnology is, perhaps. best defined as the industrial utilisation of biological systems or processes. In sense, therefore, biote(biology ha existed fo
Q. Define Stress Echocardiography with Adenosine? These have all been described. The information is that of wall motion abnormality indicating ischaemia. Ejection fraction can
Define Conservation genetics and hybridization? Is the genetic integrity of European wolves threatened by hybridization along with free-ranging dogs? To ascertain the extent of
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Define the Food and Nutrition Security? In the previous section, we learnt about the trends in production of food grains in the country and their relationship to population gro
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If one determines the concentration of cortisol in the blood plasma to be 10 ugrams/ml and that in a 24 hour period a person excretes 10 mgs of cortisol, calculate the volume of bl
Lipids are essential fats that have much importance to the human body. Lipids are biological molecules that are insoluble in aqueous solutions and soluble in organic solvents are c
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