Gene therapy is a clinical reality where defective genes can be replaced, pathogenic gene express... more Gene therapy is a clinical reality where defective genes can be replaced, pathogenic gene expression can be inhibited, or entirely new and novel functions can be added to cells by gene transfer. These techniques allow for the direct treatment of underlying molecular and cellular defects that give rise to pathologies, especially in monogenic disorders. (2) Gene therapy uses carrier molecules called vectors to deliver the therapeutic gene into the patient's target cell. The technologies for gene insertion can be divided into those that rely upon viral mechanisms, and those that rely on chemical means or on direct physical insertion of DNA. The two most popular viral mechanisms are the retrovirus and the adenovirus while the most accepted in the chemical mechanism is the creation of a phospholipid bilayer called a liposome. There are two means of inserting the therapeutic gene, namely the ex vivo delivery and the in vivo delivery. In vivo is the direct introduction of therapeutic gene into the bloodstream while ex vivo delivery involves growing of cultured cell outside the body. Because gene therapy is a powerful technology and it involves changing the body's basic instruction, it raises many unique ethical concerns and the most controversial among these is the idea of germ line gene therapy, wherein the effect can be passed on to the next generation. It may be concluded that gene therapy is still in its infancy and will need more technical and bioethical advances but at present has been used with some success.
Free fall is a common term for any motion that, in theory, is determined solely by gravitational ... more Free fall is a common term for any motion that, in theory, is determined solely by gravitational forces. Examples are the moon's motion around the earth, and an object dropping to the earth's surface. A person in free fall experiences weightlessness e.g. skydiving. In fact, influences besides gravitation are unavoidable. Air resistance in the earth's atmosphere, for instance, slows down an object's rate of descent. In this experiment, the value of the acceleration due to gravity was determined theoretically using the free fall motion.
In physics, equilibrium is defined as a static or dynamic state in which all forces or processes ... more In physics, equilibrium is defined as a static or dynamic state in which all forces or processes are in balance and there is no resultant change. To test the principles of equilibrium, a certain arrangement was used.
A scientific paper after a laboratory experiment which involves the use of various food products ... more A scientific paper after a laboratory experiment which involves the use of various food products in order to determine their respective cholesterol content.
Gene therapy is a clinical reality where defective genes can be replaced, pathogenic gene express... more Gene therapy is a clinical reality where defective genes can be replaced, pathogenic gene expression can be inhibited, or entirely new and novel functions can be added to cells by gene transfer. These techniques allow for the direct treatment of underlying molecular and cellular defects that give rise to pathologies, especially in monogenic disorders. (2) Gene therapy uses carrier molecules called vectors to deliver the therapeutic gene into the patient's target cell. The technologies for gene insertion can be divided into those that rely upon viral mechanisms, and those that rely on chemical means or on direct physical insertion of DNA. The two most popular viral mechanisms are the retrovirus and the adenovirus while the most accepted in the chemical mechanism is the creation of a phospholipid bilayer called a liposome. There are two means of inserting the therapeutic gene, namely the ex vivo delivery and the in vivo delivery. In vivo is the direct introduction of therapeutic gene into the bloodstream while ex vivo delivery involves growing of cultured cell outside the body. Because gene therapy is a powerful technology and it involves changing the body's basic instruction, it raises many unique ethical concerns and the most controversial among these is the idea of germ line gene therapy, wherein the effect can be passed on to the next generation. It may be concluded that gene therapy is still in its infancy and will need more technical and bioethical advances but at present has been used with some success.
Free fall is a common term for any motion that, in theory, is determined solely by gravitational ... more Free fall is a common term for any motion that, in theory, is determined solely by gravitational forces. Examples are the moon's motion around the earth, and an object dropping to the earth's surface. A person in free fall experiences weightlessness e.g. skydiving. In fact, influences besides gravitation are unavoidable. Air resistance in the earth's atmosphere, for instance, slows down an object's rate of descent. In this experiment, the value of the acceleration due to gravity was determined theoretically using the free fall motion.
In physics, equilibrium is defined as a static or dynamic state in which all forces or processes ... more In physics, equilibrium is defined as a static or dynamic state in which all forces or processes are in balance and there is no resultant change. To test the principles of equilibrium, a certain arrangement was used.
A scientific paper after a laboratory experiment which involves the use of various food products ... more A scientific paper after a laboratory experiment which involves the use of various food products in order to determine their respective cholesterol content.
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