A case is recorded in which a large giant cell reaction to gel-foam is noted after its use in neurosurgery. This caused blockage to the flow of cerebrospinal fluid and also thrombosis of superficial vessels of the brain with subsequent infarction. We recognize the value of gel-foam as a haemostatic agent in neurosurgery but wish to warn against its use too close to viable cerebral tissue, as it...

methods campylobacter jejuni atcc 33291 and seven isolates donated from instituto de biotecnologia were used in this study. the presence of cdt genes in c. jejuni strains was determined by pcr. to evaluate the effect of cdt, hela cells were treated with bacterial lysate, and the damage and morphological changes were analyzed by microscopy, immunofluorescence staining, and flow cytometry. to eva...

Abstract The dynamic behaviors of a horizontal piping structure with an elbow due to the two-phase flow excitation are experimentally investigated. effects patterns and superficial velocities on pressure pulsations vibration responses evaluated in detail. A strong partition coupling algorithm is used calculate flow-induced (FIV) pipe, theoretical values agree well experimental results. It found...

Introduction Non-occlusive mesenteric ischemia (NOMI) is an acute mesenteric circulatory disorder that, in contrast to mesenteric arterial occlusion induced by blockage of blood flow by emboli and thrombi, is not caused by organic occlusion of blood vessels. 1 Good outcomes in NOMI are observed with early recognition and treatment. 1-2 The early symptoms and characteristics of NOMI, however, ar...

Vents with louvers are an important component in the indoor heating, ventilation, and air conditioning (HVAC) system providing a degree of freedom to occupants direct flow prevent foreign objects from entering or exiting ducts. As result, whether designing ventilation any duct design that involves louvers, influence louver cannot be ignored. For vent design, aside angle, blockage ratio is facto...

Due to high directionality and small wavelengths, 60 GHz links are highly vulnerable to human blockage. To overcome blockage, 60 GHz radios can use a phased-array antenna to search for and switch to unblocked beam directions. However, these techniques are reactive, and only trigger after the blockage has occurred, and hence, they take time to recover the link. In this paper, we propose BeamSpy,...

Non-invasive detection, localization and characterization of an arterial stenosis (a blockage or partial blockage in the artery) continues to be an important problem in medicine. Partial blockage stenoses are known to generate disturbances in blood flow which generate shear waves in the chest cavity. We examine a one-dimensional viscoelastic model that incorporates Kelvin-Voigt damping and inte...

The first stage of a core degradation—based on the defense-in-depth concept nuclear power plant (NPP) safety—is prone to fuel melting due local blockage. flow blockage accidents with no SCRAM happening can lead fuel-clad failure, consequently affecting safety NPP. present study provides an analysis Anticipated Transient Without (ATWS), which might condition burning out. related ATWS scenarios, ...

Human embryonic stem cells (hESCs) have great potential for clinical therapeutic use. However, relatively little is known of the mechanisms which dictate their specificity of adhesion to substrates through adhesion proteins including integrins. Previous observations demonstrated enhanced clonogenicity in reduced oxygen culture systems. Here, we demonstrated via antibody blocking experiments tha...