This paper studies performance of the parallel variable transformation (PVT) algorithm for unconstrained nonlinear optimization through numerical experiments on a Fujitsu VPP500, one of the most up-to-date vector parallel computer. Special attention is paid to a particular form of the PVT algorithm that is regarded as a generalization of the block Jacobi algorithm that allows overlapping of var...

Gauri Billa1*, Ajay S Chandanwale2, Subramanian Sundar3, Kaliaperumal Latchoumibady4, Swati Biswas5 1Medical Advisor, Abbott Healthcare Pvt Ltd, 1st floor, D Mart Bldg, Mulund-Goregaon Link Road, Mumbai. 2Department of Orthopedics& Traumatology, ByramjeeJeejeebhoy Medical College and. Sassoon General Hospital, Pune. 3Consultant orthopedic surgeon, Vasantha Subramanian Hospital, Chennai, Tamil N...

Using a mathematical heat transfer model including anisotropic heat conduction, radiation, and RF heating, we use our software WIAS-HiTNIHS 1 to perform numerical computations of the temperature field in axisymmetric growth apparatus during sublimation growth of silicon carbide (SiC) bulk single crystals by physical vapor transport (PVT) (modified Lely method). As it is not unusual for the ther...

The goal of the present study was to examine the effect of listening to self-relevant words (i.e., one's own name) on vigilant attention, arousal, and subjective sleepiness during performance of a psychomotor vigilance test (PVT). Twenty-one participants aged 20-26 years (22.2 ± 1.76) performed a PVT in four experimental conditions: one in which their own full name was pronounced every 20 s in ...

Repetitive transcranial magnetic stimulation (rTMS) is a noninvasive technique to induce electric currents in the brain. Although rTMS is being evaluated as a possible alternative to electroconvulsive therapy for the treatment of refractory depression, little is known about the pattern of activation induced in the brain by rTMS. We have compared immediate early gene expression in rat brain afte...

Solar photovoltaic (PV) technology has a lower adoption rate than expected because of different weather conditions (sunny, cloudy, windy, rainy, and stormy) high material manufacturing costs. To overcome the barriers to adoption, many researchers are developing methods increase its performance. A photovoltaic–thermal absorber hybrid system may shift performance, but become more efficient, could...

Schultheiss et al. [3]. The article by Lang et al. [4] points out the interdisciplinary approach that is required to select an optimal individual therapy for a given patient based on clinical presentation, underlying diseases, extension of thrombosis, and the patient’s comorbidities. A particular focus is therefore put on the surgical therapeutic options. A specific clinical challenge is a PVT ...

INTRODUCTION Fatigue is the most frequently reported persistent symptom following a mild traumatic brain injury (mTBI), but the explanations for the persisting fatigue symptoms in mTBI remain controversial. In this study, we investigated the change of cerebral blood flow during the performance of a psychomotor vigilance task (PVT) by using pseudo-continuous arterial spin labeling (PCASL) MRI te...

In order to determine the role of the coupling interval of a premature ventricular contraction (PVC) in the development of paroxysmal ventricular tachycardia (PVT) during the early phase of acute myocardial infarction in man, 52 male patients with documented acute myocardial infarction had 24-hour Holter monitoring commenced within 24 hours of the onset of prolonged chest pain. Review of the ta...