Search results for "Sensor"
showing 10 items of 4594 documents
The pain threshold of high-threshold mechanosensitive receptors subsequent to maximal eccentric exercise is a potential marker in the prediction of D…
2017
Background Delayed-onset muscle soreness (DOMS) refers to dull pain and discomfort in people after participating in exercise, sport or recreational physical activities. The aim of this study was to detect underlying mechanical thresholds in an experimental model of DOMS. Methods Randomised study to detect mechanical pain thresholds in a randomised order following experimentally induced DOMS of the non-dominant arm in healthy participants. Main outcome was the detection of the pressure pain threshold (PPT), secondary thresholds included mechanical detection (MDT) and pain thresholds (MPT), pain intensity, pain perceptions and the maximum isometric voluntary force (MIVF). Results Twenty volun…
Mesurer le goût. Quand la mémoire s'en mêle
2011
; Dans le domaine alimentaire, le goût est un critère très important de satisfaction ou d’insatisfaction des consommateurs. Il est donc essentiel de le maîtriser, ce qui implique de pouvoir le mesurer.
Multisensorā pieeja veidojot bērnu rakstīt un lasītprasmes angļu valodas stundās
2016
Iemācīt pirmskolas vecuma bērniem lasītprasmi un rakstītprasmi ir svarīgs izaicinājums ikvienam skolotājam. Skolotāja izvēlētā pieejai, mācot bērnus, ir svarīga loma un tā var ietekmēt bērna panākumus lasīšanā un rakstīšanā nākotnē. Diplomdarba mērķis bija izpētīt multi-sensoro pieeju angļu valodas (kā svešvalodas) stundās, lai attīstītu bērna rakstītprasmi un lasītprasmi. Par pētījuma metodi tika izvēlēts gadījuma pētījums, kurš tika veikts 9 nedēļas Rīgas 234. Pirmsskolas izglītības iestādē. Diplomdarbā tika izmantotas sekojošas pētīšanas metodes: aptauja un novērošana. Diplomdarba autore novēroja 20 bērnus, kuri apmeklēja angļu valodas stundas, lai izpētītu viņu mācīšanās metodes un angļ…
A non-enzymatic electrochemical hydrogen peroxide sensor based on copper oxide nanostructures
2022
This work was supported by ERDF project No. 1.1.1.2/16/I/ 001, research application number 1.1.1.2/VIAA/4/20/743 "Development of nanomaterial-based electrochemical sensor for detection of hydrogen peroxide". Institute of Solid State Physics, University of Latvia as the Center of Excellence has received fund ing from the European Union’s Horizon 2020 Framework Programme H2020-WIDESPREAD-01-2016-2017 TeamingPhase2 under grant agree ment No. 739508, project CAMART2.
Copper and Palladium NWs for Hydrogen Peroxide detection
2018
H2O2 is a wide used chemical in different field, like in paper and textile industries and pharmaceutical applications. Furthermore, H2O2 concentration in human body is related to glucose concentration because the reaction between glucose and glucosidase produce hydrogen peroxide [1] . Moreover, is used as a biomarker of oxidative stress, being an oxidative specie [2] . For all these reasons, researcher all over the world are working to develop new and novel strategies for in situ, non-invasive and fast detection of this chemical. One of these fields concern the electrochemical sensors, that are sensors with an electrical (current, potential, impedance) output. The surface area the electrode…
Effet d'une éducation sensorielle sur les préférences et les comportements alimentaires d'enfants en classe de cours moyen (CM).
2008
Sensory experience of a meal (or mere exposure) can interact with preferences and food behaviour. On the other hand, current campaigns of nutritional information try to modify food behaviours by making people aware of the dangers of over eating and providing guidelines for healthy eating behaviour. Nevertheless, this approach doesn't take into account the pleasure to eat. The project "EduSens" bases itself on a hedonist and sensory approach in taste education that unites exposure to food and information about food. The aim of the study was to first develop tools to evaluate the effects of this sensory education and then to use them to measure the effects of a sensory education in a school c…
Factores implicados en la regulación del desarrollo de las vías del dolor.
2015
En el presente trabajo de tesis doctoral hemos querido investigar aspectos de la regulación de las neuronas sensoriales periféricas que participan en la detección del dolor y, para ello, hemos estudiado la contribución de la neurotrofina BDNF y de la metaloproteasa MT-5 al desarrollo y mantenimiento de esta población sensorial de indudable inetrés biomédico. Los aspectos más destacables de los hallazgos pueden resumirse en: 1) hemos identificado por primera vez la dependencia trófica postnatal de neuronas nociceptivas de la neurotrofina BDNF, 2) la implicación de una metaloproteasa en la fisiología del dolor a través de acciones específicas en el crecimiento de las fibras nociceptivas y en …
Impact of pharmacological and environmental manipulations on neuronal structural plasticity and dynamics
2017
El sistema nervioso de vertebrados es uno de los más estudiados, aunque peor comprendidos, del organismo de mamíferos. Desde que Ramón y Cajal postuló su teoría celular de este sistema (Ramón y Cajal 1909), la neurona se ha postulado como su unidad funcional. Sin embargo, durante las últimas décadas se ha revolucionado la visión que se tenía de éste. Una de las percepciones más asentadas era que, tras el desarrollo embrionario, el sistema nervioso se mantenía inmutable. Sin embargo, ahora sabemos que diferentes formas de plasticidad gobiernan su adaptación, que son necesarias para importantes procesos del día a día, tales como el aprendizaje y la memoria (Smythies 2002; Berlucchi and Buchte…
Modification of a commercial atomic force microscopy for low-noise, high-resolution frequency-modulation imaging in liquid environment.
2011
A key issue for high-resolution frequency-modulation atomic force microscopy imaging in liquids is minimizing the frequency noise, which requires a detailed analysis of the corresponding noise contributions. In this paper, we present a detailed description for modifying a commercial atomic force microscope (Bruker MultiMode V with Nanoscope V controller), aiming at atomic-resolution frequency-modulation imaging in ambient and in liquid environment. Care was taken to maintain the AFMs original stability and ease of operation. The new system builds upon an optimized light source, a new photodiode and an entirely new amplifier. Moreover, we introduce a home-built liquid cell and sample holder …
Latest Developments and Results of Radiation Tolerance CMOS Sensors with Small Collection Electrodes
2020
The development of radiation hard Depleted Monolithic Active Pixel Sensors (DMAPS) targets the replacement of hybrid pixel detectors to meet radiation hardness requirements of at least 1.5e16 1 MeV neq/cm2 for the HL-LHC and beyond. DMAPS were designed and tested in the TJ180 nm TowerJazz CMOS imaging technology with small electrodes pixel designs. This technology reduces costs and provides granularity of 36.4x36.4 um2 with low power operation (1 uW/pixel), low noise of ENC < 20 e-, a small collection electrode (3 um) and fast signal response within 25 ns bunch crossing. This contribution will present the latest developments after the MALTA and Mini-MALTA sensors. It will illustrate the imp…