The shock jump relations for gradients of flow variables are presented in the case of a uniform steady freestream with a curved shock thatmay trigger an endothermic or exothermic chemical reaction. The rich information that can be obtained from these is used in order to derive field information for flow variables as well as details about the sonic line. This presentation collects, reviews, and ...

We confront the theoretical and practical difficulties of computing a representation for two-dimensional shape, based on shocks or singularities that arise as the shape’s boundary is deformed. First, we develop subpixel local detectors for finding and classifying shocks. Second, we show that shock patterns are not arbitrary but obey the rules of a grammar, and in addition satisfy specific topol...

Thyroxin injection with associated increases in metabolic rate does not significantly affect simple reaction time to an electric shock. Hypophysectomy and thyroidectomy with associated decreases in metabolic rate produce a slight decline in reaction speed. Reaction time is long in young animals, probably due to incomplete development of certain integrative and conductive systems; it remains vir...

Figure-Ground segmentation is a fundamental problem in computer vision. The main diiculty is the integration of low-level, pixel-based local image features to obtain global object-based descriptions. Active contours in the form of snakes, balloons, and level-set modeling techniques have been proposed that satisfactorily address this question for certain applications. However, these methods requ...

More than 80% of Alzheimer's disease (AD) patients have some degree of cerebral amyloid angiopathy (CAA). In addition to arteries and veins, capillaries can also be affected. Capillary CAA (capCAA), rather than CAA in larger vessels, is associated with flame-like amyloid-beta (Aβ) deposits that may extend beyond the vessel wall and radiate into the neuropil, a phenomenon also known as "dyshoric...

Figure-Ground segmentation is a fundamental problem in computer vision. The main di culty is the integration of low-level, pixel-based local image features to obtain global objectbased descriptions. Active contours in the form of snakes, balloons, and level-set modeling techniques have been proposed that satisfactorily address this question for certain applications. However, these methods requi...

Psittacosis is a zoonotic infectious disease causing communityacquired pneumonia. Septic shock and respiratory failure can develop. The symptoms, diagnosis, transmission and treatment of psittacosis are discussed. In the described cases, especially polymerase chain reaction has shown to be a promising tool in diagnosing the disease. Physicians awareness might be accelerated to ensure rapid trea...