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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.
What is the life cycle type of bryophytes? As in all plants the life cycle of bryophytes is diplobiontic (alternation of generations). In bryophytes the lasting form is the hap
Which of the following is true for SA node cardiac muscle cells? A. An increase in the binding of norepinephrine to beta-adrenergic receptors in SA node cells will lead to an i
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why should shivering contribute to heat gain in the body?
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To observe yeast plants Borrow a microscope from a college, a high school, a doctor or a hospital. Place a some drops of the sugar solution which having yeast on a glass slide
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