Asunto(s)
COVID-19 , Control de Enfermedades Transmisibles , Atención a la Salud/organización & administración , Médicos de Atención Primaria , Atención Primaria de Salud , COVID-19/epidemiología , COVID-19/prevención & control , COVID-19/terapia , Control de Enfermedades Transmisibles/organización & administración , Control de Enfermedades Transmisibles/normas , Hong Kong , Humanos , Médicos de Atención Primaria/normas , Médicos de Atención Primaria/provisión & distribución , Atención Primaria de Salud/métodos , Atención Primaria de Salud/tendencias , Rol Profesional , SARS-CoV-2RESUMEN
This paper presents the Static Computational Optical Undersampled Tracker (SCOUT), an architecture for compressive motion tracking systems. The architecture uses compressive sensing techniques to track moving targets at significantly higher resolution than the detector array, allowing for low cost, low weight design and a significant reduction in data storage and bandwidth requirements. Using two amplitude masks and a standard focal plane array, the system captures many projections simultaneously, avoiding the need for time-sequential measurements of a single scene. Scenes with few moving targets on static backgrounds have frame differences that can be reconstructed using sparse signal reconstruction techniques in order to track moving targets. Simulations demonstrate theoretical performance and help to inform the choice of design parameters. We use the coherence parameter of the system matrix as an efficient predictor of reconstruction error to avoid performing computationally intensive reconstructions over the entire design space. An experimental SCOUT system demonstrates excellent reconstruction performance with 16X compression tracking movers on scenes with zero and nonzero backgrounds.
Asunto(s)
Sales (Química) , Tensión Superficial , Tensoactivos , Bromuros , Fenómenos Químicos , Química , Cloruros , Citratos , Sulfato de Magnesio , Fosfatos , Cloruro de Sodio , Sulfatos , TartratosRESUMEN
Fibroblasts from a patient with Fanconi's anemia were deficient in their ability to excise UV-induced pyrimidine dimers from their DNA but were capable of single-strand break production and unscheduled DNA synthesis.
Asunto(s)
Anemia Aplásica/metabolismo , Reparación del ADN , ADN/efectos de la radiación , Anemia de Fanconi/metabolismo , Rayos Ultravioleta , Sitios de Unión , Células Cultivadas , Centrifugación por Gradiente de Densidad , ADN/biosíntesis , Síndrome de Down/metabolismo , Fibroblastos/metabolismo , Fibroblastos/efectos de la radiación , Humanos , Peso Molecular , Nucleótidos de Pirimidina/metabolismo , Efectos de la RadiaciónRESUMEN
Over an 18 month period, 34,495 livebirths were delivered in the Kuala Lumpur Maternity Hospital. 36 neonates (1.044 per 1000 livebirths) had Down's syndrome. The observed rates of Down's syndrome per 1000 livebirths by single year intervals of maternal age were calculated. By using the discontinuous slope model, our study showed that the incidence of Down's syndrome among the Malaysian liveborns increased markedly when the maternal age exceeded 35 years. This study also suggested that the Malay mothers had increased risk of producing babies with Down's syndrome at a later age than the Chinese and the Indians. However, a larger number of babies in each racial group needs to be studied to confirm this.