Search results for "Modula"
showing 10 items of 1481 documents
Ge quantum well plasmon-enhanced quantum confined Stark effect modulator
2014
ABSTRACTWe theoretically and experimentally investigate a novel modulation concept on silicon (Si) based on the combination of quantum confinement and plasmon enhancement effects. We experimentally study the suitability of Ge/SiGe quantum wells (QWs) on Si as the active material for a plasmon-enhanced optical modulator. We demonstrate that in QW structures absorption and modulation of light with transverse magnetic (TM) polarization are greatly enhanced due to favorable selection rules. Later, we theoretically study the plasmon propagation at the metal-Ge/SiGe QW interface. We design a novel Ge/SiGe QW structure that allows maximized overlap between the plasmonic mode and the underlying Ge/…
Oxymetazoline modulates proinflammatory cytokines and the T‐cell stimulatory capacity of dendritic cells
2007
The nasal decongestant oxymetazoline (OMZ) is frequently used in the topical treatment of rhinitis/sinusitis. As proinflammatory cytokines play a critical role in the development and maintenance of local inflammation, the aim of this study was to investigate the influence of OMZ on immune cells in order to diminish the mucosal infiltration of the nose. Peripheral blood mononuclear cells (PBMC) from buffy coats of healthy volunteers were isolated and stimulated in the presence or absence of OMZ. In addition, monocyte-derived dendritic cells (DC) were generated and different concentrations of OMZ were added. DC phenotype and their T-cell stimulatory properties were analysed. The vasoactive su…
Neurophysiological Changes After Paired Brain and Spinal Cord Stimulation Coupled With Locomotor Training in Human Spinal Cord Injury
2021
Neurophysiological changes that involve activity-dependent neuroplasticity mechanisms via repeated stimulation and locomotor training are not commonly employed in research even though combination of interventions is a common clinical practice. In this randomized clinical trial, we established neurophysiological changes when transcranial magnetic stimulation (TMS) of the motor cortex was paired with transcutaneous thoracolumbar spinal (transspinal) stimulation in human spinal cord injury (SCI) delivered during locomotor training. We hypothesized that TMS delivered before transspinal (TMS-transspinal) stimulation promotes functional reorganization of spinal networks during stepping. In this p…
Banche e struttura modulare dei sistemi di pagamento: una prospettiva di analisi economico-aziendale
2019
Technology is changing the fundamental economics of the payment industry, just as it has in many other industries. Technological innovations in payment systems have deep managerial and financial implications at firm, industry, and regulatory levels. This paper adopts a business management perspective of studies to examine the distinctive factors of the adoption and diffusion of technological innovation in the economics of payments systems. The main aim is to identify the relevant drivers which lead to modularity of payments systems in the financial industry. In this paper, I adopt a modular design methodology to identify the factors related to the interoperability of payments systems, to an…
Síntesis y caracterización de poliuretanos termoplásticos basados en policarbonato dioles. Relación estructura/propiedades.
2012
Los poliuretanos son una familia de polímeros muy versátil, utilizados en un amplio rango de aplicación, desde las espumas rígidas-flexibles, materiales elastómeros, recubrimientos, adhesivos, hasta materiales con aplicaciones biomédicas. Esta gran versatilidad es debida a que los reactivos utilizados en la síntesis de los poliuretanos son muy variados, permitiendo la gran versatilidad en la formulación del poliuretano y en las propiedades del mismo. Los poliuretanos termoplásticos elastómeros son copolímeros de bloque, que a temperatura ambiente se comportan como elastómeros entrecruzados, y sin embargo a diferencia de los elastómeros convencionales, por acción del calor se pueden conforma…
Struttura galleggiante ad elevata stabilità (Floating structure with high stability)
2015
DESCRIZIONE GENERALE La struttura galleggiante innovativa è composta da diversi elementi modulari collegati fra loro. La composizione modulare della struttura consente di conferirle la lunghezza dettata dalle particolari esigenze da soddisfare. Tipiche applicazioni della struttura galleggiate innovativa sono i pontili, le passerelle pedonali o ciclabili su specchi d'acqua, e in generale le opere finalizzate a consentire lo spostamento di persone, merci e/o veicoli fra punti di uno specchio d'acqua (marino o lacustre) utilizzando strutture galleggianti. Ogni modulo, lungo 10-15 m, è tenuto a galla dalla spinta di Archimede sulle sue parti immerse (le carene), spinta che nella struttura innov…
On the evaluation of an optical OFDM radio over FSO system with IM-DD for high-speed indoor communications
2017
En aquest article es proposa un nou sistema híbrid de ràdio sobre fibra (RoF) i òptica d’espai lliure (FSO) basat en la transmissió de senyals òptics OFDM (OOFDM) per proporcionar enllaços de comunicació sense fils òptics d’alta capacitat. Es proposa un esquema de transmissió de baix cost basat en IM-DD per simplificar i reutilitzar la infraestructura existent per desplegar un enllaç FSO d’alt ample de banda. Aquest article mostra els resultats experimentals basats en la implementació de l'esquema proposat sota una transmissió digital OOFDM de 16 QAM a través de 10 km de fibra monomode (SMF) i enllaç FSO de 300 mm. Els resultats mostren la viabilitat de desplegar un sistema de comunicació d…
Factores radiológicos predictivos de accesibilidad quirúrgica a la fosa pterigopalatina
2020
La fosa pterigopalatina es una pequeña región anatómica con forma de pirámide invertida, localizada a caballo entre la base del cráneo y el macizo facial. Es un espacio pequeño y estrecho, estructuralmente complicado y de difícil accesibilidad quirúrgica. En la fosa se aloja el ganglio esfenopalatino, que está implicado en una amplia variedad de enfermedades relacionadas con el dolor facial de origen neurovegetativo, como la cefalea en racimos. La reciente aparición de técnicas basadas en la neuromodulación del ganglio esfenopalatino para el tratamiento de cefaleas en racimo refractarias hace imprescindible profundizar en el conocimiento de la fosa pterigopalatina y de sus vías de acceso. E…
Priekšrocības un grūtības CLIL izmantošanā vācu valodas stundās iesācējiem
2017
Pētījumā analizētas CLIL ((Content and Language Integrated Learning) – valodas un satura integrēta mācīšanās) priekšrocības un grūtības svešvalodu stundās iesācējiem. Tas sastāv no ievada un divām daļām – no teorētiskās un no praktiskās daļas. Ievadā formulēts darba mērķis un uzdevumi, izvirzīta pētāmajai problēmai atbilstoša hipotēze, izvēlētas pamatotas pētīšanas metodes. Teorētiskajā daļā aplūkots CLIL jēdziens un tā interpretācijas, būtiskās pazīmes un varianti, analizēti CLIL didaktiski metodiskie pamatprincipi un mācību materiālā bāze, kā arī mācību sasniegumu vertēšana. Praktiskajā daļā, kas veidota kā diplomdarba teorētiskās daļas praktisks pamatojums un apliecinājums, atspoguļota p…
Modular Service Design of Information Technology-Enabled Services
2022
The literature has proposed ways to modularize information-technology-enabled services (ITeS) with limited success. We argue that applying design principles (DPs) can address this gap and revitalize the service modularization literature. With a qualitative research study, we develop exemplar DPs and a set of prioritized DPs for ITeS. We contribute to the literature by demonstrating how complex service systems, specifically ITeS, can be modularly designed. Our DPs show how different ITeS design elements or service attribute combinations impact the outcome-driven design of service experience. Based on the findings, we present a modular service design framework and a service design method tha…