نتایج جستجو برای: single photon emission computed tomography
تعداد نتایج: 1269056 فیلتر نتایج به سال:
Using a genome-wide single nucleotide polymorphism (SNP) panel, we observed population structure in a diverse group of Europeans and European Americans. Under a variety of conditions and tests, there is a consistent and reproducible distinction between "northern" and "southern" European population groups: most individual participants with southern European ancestry (Italian, Spanish, Portuguese...
We control the linear polarization of emission from the coherently emitting K^{+} and K^{-} valleys (valley coherence) in monolayer WS_{2} with an out-of-plane magnetic field of up to 25 T. The magnetic-field-induced valley Zeeman splitting causes a rotation of the emission polarization with respect to the excitation by up to 35° and reduces the polarization degree by up to 16%. We explain both...
Microvascular abnormalities of the coronary circulation are present in several cardiac disorders, are associated with risk factors, and may be present in systemic disease. For the diagnosis and quantification of microvascular dysfunction, non invasive imaging techniques can be used. This paper will highlight the roles of exercise ECG, single photon emission computed tomography, echocardiography...
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