Dispersed nickel sulfate NiSO4 microclusters on Si substrates were fragmented by pulsed excimer laser irradiation to serve as catalysts for carbon nanotube/nanofiber CNT/CNF growth. At proper fluences, NiSO4 clusters were pulverized into nanoparticles. The sizes of clusters/nanoparticles were found to be dependent on laser fluence and laser pulse number. By increasing the laser fluence from 100...

The paper presents an automatic method for liver vasculature segmentation in volumetric images obtained during Computed Tomography (CT) patient examination. The method, apart from the CT image, also requires an additional image containing binary liver mask. A modified multiscale vesselness filter (VF) performs vasculature detection. VF response is used to determine the starting voxels for the s...

A micro-electro-mechanical system (MEMS) is a technology that allows obtaining components between 1 to 1000 micrometers (usually 20 micrometers). Its small dimension and, at the same time, the low power consumption, has become the most important features so as to develop a new technology for nano-scale components. Moreover, the fabrication procedures are as simple as a Microstrip line procedure...

To explore mechanisms of hypoxemia after acute pulmonary embolism, we measured regional pulmonary blood flow and alveolar ventilation before and after embolization with 780-micrometers beads in five anesthetized, mechanically ventilated pigs. Regional ventilation and perfusion were determined in approximately 2.0-cm3 lung volumes by using 1-micrometers-diameter aerosolized and 15-micrometers-di...

Conformable electronics has emerged in recent years as an innovative research field and the ability of conformable devices to monitor human physiological signals been extensively explored. Therefore, this study, possibility using active capable providing stimuli body is investigated. In particular, a new approach proposed elicit tactile sensations on skin operating principle based generation lo...

The neutral amino acid gamma-aminobutyric acid (GABA) produced membrane hyperpolarization and increased membrane chloride ion conductance of spinal cord (SC) and cortical (CTX) neurons in cell culture. GABA dose-response curves were obtained for SC neurons by pressure applying known concentrations of GABA from micropipettes with large tips (miniperfusion pipettes). GABA response threshold was a...

Penetrating artery infarcts that are predominantly caused by occlusion at the vessel orifices of larger caliber penetrating arteries by atheromatous plaque can represent a distinctive stroke entity as intracranial branch atheromatous disease (BAD) (1). BAD often shows progressive motor deficits leading to severe disability (2). Thrombolytic therapy by tissue plasminogen activator has not been d...

Mechanical stimuli direct reversible intramembrane positioning of flat rigid microdomains on scales up to tens micrometers.