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A triangulated category is an additive category D with a translation functor and a class of triangles, called exact triangles [2] (or distinguished triangles), satisfying the following properties (TR 1), (TR 2), (TR 3) and (TR 4). (These axioms are not entirely independent, since (TR 3) can be derived from the others. [3])
The symptoms of TR depend on its severity. Severe TR causes right-sided heart failure, with the development of ascites and peripheral edema. [1] In severe cases of right heart failure due to TR, venous congestion of the kidneys and liver may lead to cardiorenal syndrome (kidney failure secondary to heart failure) and cardiohepatic syndromes (liver failure secondary to heart failure ...
Type 1 regulatory T cells poses inhibitory receptor CTLA-4 through which they exert suppressor function. [12] Metabolic disruption: Tr1 cells can express ectoenzymes CD39 and CD73 and are suspected of generating adenosine which suppresses effector T cell proliferation and their cytokine production in vitro. [13] Cytolitic activity:
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Positron emission tomography (PET) [1] is a functional imaging technique that uses radioactive substances known as radiotracers to visualize and measure changes in metabolic processes, and in other physiological activities including blood flow, regional chemical composition, and absorption.
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In conventional CT machines, an X-ray tube and detector are physically rotated behind a circular shroud (see the image above right). An alternative, short lived design, known as electron beam tomography (EBT), used electromagnetic deflection of an electron beam within a very large conical X-ray tube and a stationary array of detectors to achieve very high temporal resolution, for imaging of ...
The thyroid hormone receptor (TR) [1] is a type of nuclear receptor that is activated by binding thyroid hormone. [2] TRs act as transcription factors , ultimately affecting the regulation of gene transcription and translation .