Search results for "NIR"

Exploring FPGA‐Based Lock‐In Techniques for Brain  Monitoring Applications

2017

Functional near‐infrared spectroscopy (fNIRS) systems for e‐health applications usually suffer from poor signal detection, mainly due to a low end‐to‐end signal‐to‐noise ratio of the electronics chain. Lock‐in amplifiers (LIA) historically represent a powerful technique helping to improve performance in such circumstances. In this work a digital LIA system, based on a Zynq® field programmable gate array (FPGA) has been designed and implemented, in an attempt to explore if this technique might improve fNIRS system performance. More broadly, FPGA‐based solution flexibility has been investigated, with particular emphasis applied to digital filter parameters, needed in the digital LIA, and its …

A la sortie du lycée ... évolution sur trois ans

1988

Le devenir des jeunes jurassiens ayant achevé en 1980 une formation de niveau V (CAP, BEP, apprentissage, formations agricoles)

1986

Le devenir professionnel des élèves sortis en juin 1979 des classes terminales de BEPA dans les régions Bourgogne-Franche-Comté : premiers résultats

1985

International audience

Devenir des élèves ayant achevé en juin 1981 une formation à temps plein en électricité et électronique dans l'académie de Besançon

1983

Référence interne : 83003; Dans l'académie de Besançon, en juin 1981, 750 élèves ou étudiants arrivaient au terme d'une formation professionnelle à temps plein dans les spécialités de l'électricité ou de l'électronique aux niveaux CAP et BEP, BTN, BTS et DUT. Que sont devenus ces élèves et étudiants ? Combien ont poursuivi des études et lesquelles ? Dans quelles conditions s'est effectuée l'insertion professionnelle pour ceux qui l'ont recherché ? Y'a t'il concurrence entre les différents niveaux de formation ? Pour répondre à ces questions, il a été procédé à une enquête par voie postale, entre mars et juin 1992, auprès de tous les élèves et étudiants concernés. Les résultats de l'exploita…

nuevos desafíos en espectroscopia vibracional

2017

El principal objetivo de la Química Analítica Verde es la sustitución de metodologías contaminantes por otras más limpias, mediante:  La reducción de reactivos y disolventes empleados en el pre-tratamiento y análisis de las muestras.  Minimizar las cantidades y de la toxicidad de los compuestos empleados en las etapas de preparación y medida, especialmente mediante automatización y miniaturización.  El desarrollo de metodologías directas de análisis sin uso de reactivos o disolventes y que, por tanto, no generen desechos tóxicos ni peligrosos. Las técnicas espectroscópicas junto con el uso de la quimiometría pueden ser una buena alternativa a los métodos tradicionales, ya que se pueden r…

L'insertion professionnelle : plus de chômage, moins d'emploi pour les filles

1988

New Vocabulary for Bacterial Communication

2019

Abstract Quorum sensing (QS) is widely accepted as a procedure that bacteria use to converse. However, prevailing thinking places acyl homoserine lactones (AHLs) at the forefront of this communication pathway in Gram‐negative bacteria. With the advent of high‐throughput genomics and the subsequent influx of bacterial genomes, bioinformatics analysis has determined that the genes encoding AHL biosynthesis, originally discovered to be indispensable for QS (LuxI‐like proteins and homologues), are often absent in QS‐capable bacteria. Instead, the sensing protein (LuxR‐like proteins) is present with an apparent inability to produce any outgoing AHL signal. Recently, several signals for these Lux…

Genotyping of Campylobacter spp.

2000

method. The major disadvantages of both of these techniques are the high number of untypeable strains and the time-consuming and technically demanding requirements of the techniques. Production and quality control of antiserum reagents for serotyping schemes are costly; consequently, these reagents are not widely available. A recently developed scheme (23) based on HS antigens in which modified antibody production and antigen detection techniques are used may be an improvement for routine use, but this scheme does not solve the problem of restricted reagent availability or the problem of the high level of nontypeability. Because of such problems, the value of serotyping techniques for natio…

Correlates of Sedentary Behaviour in Adults with Intellectual Disabilities—A Systematic Review

2018

Individuals with intellectual disabilities (ID) are at high risk for high levels of sedentary behaviour. To inform the development of programmes to reduce sedentary behaviour, insight into the correlates is needed. Therefore, the aim of this study is to review the evidence on correlates of sedentary behaviour in adults with ID. We performed a systematic literature search in Ovid Medline, Ovid Embase, Web of Science and Google Scholar up to 19 January 2018, resulting in nine included studies that were published from 2011 to 2018. Correlates were categorized according to the ecological model. Studies predominantly focused on individual level correlates. Of those correlates studied in more tha…