* This project is funded under the NASA-KSC STTR-Phase I Program. ABSTRACT A single-stage power factor correction converter with softswitching is proposed in this paper. The topology of this converter is derived by adding a resonant circuit to an existing Single-Stage, Single-Switch Power Factor Correction (S PFC) converter. As a result, zero-voltage-switching and zero-current-switching are ach...

Introduction: Depuis 1995, le Maroc a connu une réactivation des foyers de leishmanioses cutanées (LC) à L. major et une nouvelle répartition géographique des foyers à L. tropica. Le but de cette étude est de comparer les aspects épidémio-cliniques associés aux LC potentiellement dûes à L. major et à L. tropica. Méthodes: Une étude rétrospective a colligé 268 cas de LC au service de dermatologi...

Dopamine neurotransmission in the dorsal hippocampus is critical for a range of functions from spatial learning and synaptic plasticity to the deficits underlying psychiatric disorders such as attention-deficit hyperactivity disorder. The ventral tegmental area (VTA) is the presumed source of dopamine in the dorsal hippocampus. However, there is a surprising scarcity of VTA dopamine axons in th...

The brainstem nucleus locus coeruleus (LC) is the primary source of norepinephrine (NE) to the mammalian neocortex. It is believed to operate as a homogeneous syncytium of transmitter-specific cells that regulate brain function and behavior via an extensive network of axonal projections and global transmitter-mediated modulatory influences on a diverse assembly of neural targets within the CNS....

Dendritic cells (DCs) form a network comprising different populations that initiate and differentially regulate immune responses. Langerhans cells (LCs) represent a unique population of DCs colonizing epithelium, and we present here observations suggesting that macrophage inflammatory protein (MIP)-3 a plays a central role in LC precursor recruitment into the epithelium during inflammation. (a)...

Abstract This paper introduces a neural network (NN) approach for fitting the Lee-Carter (LC) and Poisson model on multiple populations. We develop some NNs that replicate structure of individual LC models allow their joint by simultaneously analysing mortality data all considered The NN architecture is specifically designed to calibrate each using available information instead population-speci...

cyanobacteria blooms are common in baltic sea and their intensity have been increased due toanthropogenic eutrophication. in this study we investigated the cyanotoxin levels in the water samplescollected from four different locations in the baltic sea at three different seasons including summer 2011.protein phosphatase 2a (pp2a) inhibition assays, enzyme-linked immunosorbent assays (elisa) and ...

for the first time, a multi-residue methodfor simultaneous determination of 41lc-amenable pesticides in rice, belonging to different chemical classes has been developed in iran by lc-ms/ms. the pesticides were analyzed simultaneously in a single run using positive electrospray ionization with multiple reaction monitoring (mrm) after extraction with slightly modified quechers method. the calibra...