A2B-type meso-(4-nitrophenyl)-substituted subporphyrins have been synthesized and shown to undergo very fast photoinduced intramolecular charge separation (CS) and charge recombination (CR) between the subporphyrin core and the meso-4-nitrophenyl group in CH2Cl2 as probed by femtosecond time-resolved transient absorption spectroscopy. Red-shifted emissions were detected from charge-separated st...

Augmentation of vagal tone increases ventricular fibrillation threshold (VFT) under nonischemic and ischemic conditions and protects against spontaneous ventricular fibrillation during experimental myocardial infarction. The purpose of this study was to identify the anatomic pathways responsible for this cholinergically-mediated enhanced electrical stability and to determine whether or not thes...

Variable-frequency stimulation trains (VFTs) that take advantage of the catchlike property of skeletal muscle have been shown to augment the force production of fatigued muscles compared with constant-frequency trains (CFTs). The present study is the first to report the force augmentation produced by VFTs after fatiguing the muscle with VFTs versus fatiguing the muscle with CFTs. Data were obta...

INTRODUCTION The recently developed Phototest is a simple, easy and very brief (<3 minutes) test with theoretical advantages over available dementia screening tests. Our objective was to evaluate its diagnostic accuracy under routine clinical conditions. MATERIAL AND METHODS A phase II cross-sectional validation study of diagnostic tests was performed in a sample of 308 patients referred to a...

Abstract In this paper, we introduce a Low-Dropout (LDO) Regulator that features transient-current enhanced buffer, providing fast transient responses and high-power efficiency. The which incorporates an AC-coupled network high-gain stage, enhances the load response by boosting charging or discharging current to gate capacitor of power transistor, without consuming extra under varying condition...

Abstract - Use of efficient signal processing tools (SPTs) to extract proper indices for fault detection in induction motors (IMs) is the essential part of any fault recognition procedure. The Part1 of the two parts paper focuses on Fourier-based techniques including fast Fourier transform and short time Fourier transform. In this paper, all utilized SPTs which have been employed for fault fete...

Virtual Forum Theater is a web-based participatory and collaborative digital drama designed to enhance expressive fluency, argumentation skills, and critical awareness. The theoretical framework is based on Pedagogy of the Oppressed (Freire, 1972), constructivism (Piaget, 1977), constructionism (Papert, 1980), Computer Supported Collaborative Learning (CSCL) (Koschmann, 1996) as well as Theater...