Chemical processes are generally modeled through monoscale approaches, which, while not adequate, satisfy a useful role in product-process design. In this case, use of a multi-dimensional and multi-scale model-based approach has importance in product-process development. A computer-aided framework for model generation, analysis, solution and implementation is necessary for the development and a...

For the study of cerebral hemodynamics in patients with multiple occlusive or stenotic lesions of the internal carotid artery (lCA) and vertebral/basilar artery (VA/BA), six male patients (mean aged 62.5 years) were examined by regional cerebral blood flow(rCBF; Fg: intravenous bolus injection of Xe 133). The highest rCBF(73.3 ± l6.l(SD)m2/100g/min) was observed in two patients with stenosis of...

Forty-two intracranial internal carotid arteries were visualized by both arteriography and 2 MHz pulse ultrasonic Doppler examinations. The intracranial internal carotid artery Doppler signals were studied at 5-7 cm depth behind the eyelid using frequency spectral analysis. Stenosis criteria were developed and methods of avoiding confusion with collateral effects devised. Among 33 intracranial ...

To examine if mild carotid stenosis correlates with silent vascular brain changes, we studied a prospective population-based cohort "Men born in 1914." Data from followups at ages 68 and 81, have been used. Carotid ultrasound was performed at age 81, and cerebral blood flow (CBF) was measured with SPECT at age 82. Out of 123 stroke-free patients, carotid stenosis <50% was observed in 94% in the...

For more than 70 years, the inhibitors of carbonic anhydrase (ICA) have been used in treatment glaucoma. Since 1995, topical forms ICA appeared among antiglaucoma drugs — dorzolamide, and since 1999 brinzolamide. The hypotensive efficacy safety gave rise to widespread use these various peculiarities mechanism action made it possible create on their basis effective fixed combinations, which allo...

Due to the advantages of micro-grids including power losses and voltage drops reduction, reliability improvement reduction in transmission network cost, numerous clean renewable resources such as wind, tidal solar are developed different countries world. The investment cost energy-based generation units especially barrages is high, generate cost-effective electricity from resources, optimizatio...

At rest, spontaneous brain activity measured by fMRI is summarized by a number of distinct resting state networks (RSNs) following similar temporal time courses. Such networks have been consistently identified across subjects using spatial ICA (independent component analysis). Moreover, graph theory-based network analyses have also been applied to resting-state fMRI data, identifying similar RS...

A bst ract . V-Ie address certain questions concern ing invert ible cellular aut omata (ICA) , and present new results in this area . Specifically, we explicitly const ru ct a cellular automaton (CA) in a class (r esidual clas s) previously known not to be empty only via a nonconstr uctive existe nce proof. T his class contains CAs that are invert ible on every fini te suppor t but not on an in...

Background. A link between various pathological conditions and blood cerebrospinal fluid (CSF) flow alterations has been suggested by numerous studies.1 The CSF dynamics are influenced many factors, such as posture,2 heart beating, thoracic pressure changes during respiration.2,3 blood/CSF can be estimated using phase-contrast (PC) – magnetic resonance imaging (MRI). However, the clinical cardi...