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68 55 55 55 14. 18 45 45 0 12. An increasing number of investigations in recent years have linked SA to AF. Is SA a risk factor for incident AF? What is the association between SA and AF in patients with heart failure? Are there signature electrocardiographic markers of AF found in patients with SA? Are there electrophysiology-based studies supporting the link between SA and AF?
What is the impact of SA treatment on AF? What is the effect of AF treatment on sleep? Finally, we address unsolved questions and suggest future directions to enhance our understanding of the AF-SA relationship. Check if you have access through your login credentials or your institution. George Ekegey Ekeha – Academia.
Sorry, preview is currently unavailable. You can download the paper by clicking the button above. Enter the email address you signed up with and we’ll email you a reset link. Interview questions and answers pdf, Objective questions, job interview, Online preparation tests. Engineering interview questions,Mcqs,Objective Questions,Class Notes,Seminor topics,Lab Viva Pdf free download. Chemical Online Quiz Tests for Freshers. What is the difference between isotropic and anisotropic materials ?
If a material exhibits same mechanical properties regardless of loading direction, it is isotropic, e. Materials lacking this property are anisotropic. It is a special class of anisotropic materials which can be described by giving their properties in three perpendicular directions e. What is view factor ? View factor is dependent upon geometry of the two surfaces exchanging radiation. Reliability and safety—Endurance limit and yield point. Explain the effects of alloying chromium and nickel in stainless steel.
Addition of nickel and chromium increases the tensile strength and increase in resistance to corrosion takes place. Mention two types of dislocations. Dislocation refers to a break in the continuity of the lattice. In edge dislocation, one plane of atoms gets squeezed out. In screw dislocation the lattice atoms move fom their regular ideal positions.
What are the principal constituents of brass? Principal constituents of brass are copper and zinc. What is Curie point ? Curie point is the temperature at which ferromagnetic materials can no longer be magnetised by outside forces. Specific strength of materials is very high when they are in fibre size but lower when they are in bar form Why ?