Search results for "AMP"

showing 10 items of 10184 documents

Collective amplitude mode fluctuations in a flat band superconductor formed at a semimetal surface

2016

We study the fluctuations of the amplitude (i.e. the Higgs-Anderson) mode in a superconducting system of coupled Dirac particles proposed as a model for possible surface or interface superconductivity in rhombohedral graphite. This system also serves as a generic model of a topological semimetal with an interaction driven transition on its surface. We show that the absence of Fermi energy and vanishing of the excitation gap of the collective amplitude mode in the model leads to a large fluctuation contribution to thermodynamic quantities such as the heat capacity. As a consequence, the mean-field theory becomes inaccurate indicating that the interactions lead to a strongly correlated state.…

puolimetallitamplitude modefysiikka
researchProduct

The detection of the mismatch negativity (MMN) in newborns using principal component analysis (PCA)

2001

pääkomponenttianalyysiherätevasteaikaikkunastimulusten välinen intervallilatenssiamplitudipoikkeavuusnegatiivisuus
researchProduct

Droša un atbildīga auto satiksme: Ceļu satiksmes drošības direkcijas kampaņas "Skaties ceļam acīs!" piemērs

2016

Bakalaura darba „Droša un atbildīga auto satiksme: Ceļu satiksmes drošības direkcijas kampaņas „Skaties ceļam acīs!” piemērs” ietvaros tika noskaidrots kādi un cik lielā mērā ir bijuši efektīvi kampaņā „Skaties ceļam acīs!” ietvertie pārliecināšanas līdzekļi un kā tie ir ietekmējuši autovadītāju braukšanas paradumus. Darba teorētiskajā daļā tiek apskatīta teorija par sociālo mārketingu, kampaņām un to pārliecināšanas līdzekļiem, uzvedības maiņas teorijas, kā arī tieši Ceļu satiksmes drošības direkcijas raksturojums un kampaņu veidošanas stratēģijas. Pētījums veikts kā gadījuma izpēte, ietverot dažādas pētniecības metodes –intervijas, anketēšanu, fokusgrupas diskusiju un semiotisko analīzi.

pārliecināšanas līdzekļiefektivitāteKomunikācijas zinātneuzvedības maiņaceļu satiksmes drošībakampaņa
researchProduct

Pārliecināšanas paņēmieni sociālajā kampaņā "Latvijas Labums"

2015

Bakalaura darba tēma - Pārliecināšanas paņēmieni sociālajā kampaņā "Latvijas Labums". Darba mērķis ir noskaidrot, kādi pārliecināšanas paņēmieni izmantoti sociālajā kampaņā "Latvijas Labums" un kāda ir šo izmantoto paņēmienu iedarbība. Bakalaura darba teorētisko bāzi veido teorija par sociālo mārketingu, sociālajām kampaņām un tā instrumentiem, pārliecināšanas komunikāciju un pārliecināšanas paņēmieniem reklāmā. Empīriskā daļā veikta sociālās kampaņas "Latvijas Labums" semiotiskā analīze, lai apzinātu reklāmās iekļautos pārliecināšanas paņēmienus, veikta daļēji strukturētā intervija ar sociālās kampaņas organizatoriem un veidotājiem, kā arī veiktas divas fokusa grupas, lai noskaidrotu pārli…

pārliecināšanas paņēmienisemiotiskā analīzeKomunikācijas zinātnedaļēji strukturētā intervijasociālā kampaņaLatvijas Labums
researchProduct

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…

quadrature amplitude modulationoptical wireless communications:CIENCIAS TECNOLÓGICAS [UNESCO]OFDM modulationradio-over-fibrefree-space optical communicationUNESCO::CIENCIAS TECNOLÓGICASindoor communication
researchProduct

Differential detection and quantification of cyclic AMP and other adenosine phosphates in live cell

2017

A new naphthol-based rhodamine derivative (NpRD) has been developed for the selective and differential detection of adenosine 3′,5′-cyclic monophosphate (cAMP) and adenosine phosphates (APs) (ATP, ADP, and AMP) from other nucleotides. The simple detection and quantification of cAMP in human blood cells and in other samples based on the ‘turn on’ fluorescence properties of this chemosensor through colorimetry or fluorometry makes it unique for probable application in high throughput screening. peerReviewed

quantification of cyclic AMPadenosine phosphatesdifferential detectionlive cell
researchProduct

Modeling and designing a robotic swarm: A quantum computing approach

2023

Nature is a neverending source of inspiration for technology. Quantum physics suggests applications to- ward quantum computing. Swarms’ self-organization leads to robotic swarm developments. Here, quantum computing is applied to swarm robotics. We model local interactions with a quantum circuit, testing it on simulators and quantum computers. To relate local with global behavior, we develop a block matrix-based model. Diagonal sub-matrices contain information on single robots; off-diagonal sub-matrices are the pairwise interaction terms. Comparing different swarms means comparing different block matrices. Choosing initial values and computation rules for off-diagonal blocks (with a particul…

quantum computing swarm robotics search &ampGeneral Computer ScienceSettore INF/01 - InformaticaGeneral Mathematicsrescue logic gates
researchProduct

Like Parents, like Teenagers: A Romanian Youth Smoking Overview

2015

AbstractThis paper estimates how family model influences youth's smoking behaviors and describes smoking behavior in Romania nowadays. A questionnaire-based survey was used and data was collected from a national sample (1,364 people: 536 male and 828 female; average age 22,71 years and SD=3,128). The paper analyses only the items relevant for smoking behavior.Using a quasi-experimental design, we found a significant difference determinated by father's model (ρ(1364)= 0,158, p < 0,05), mother's model (ρ(1362)=0,155, p < 0,05), and brothers/sisters’ model (ρ(1362)=0,219, p < 0,05), regarding smoking behavior.Keywords: smoking behaviour, Romanian teenagers, parental model, Health Psychology

quasi-experimentRomanianSignificant differenceSample (statistics)Youth smokingsmokinglanguage.human_languageSmoking behaviorHealth psychologyfamily influencesFamily modellanguageGeneral Materials ScienceadolescentsPsychologyQuasi-experimentDemographyProcedia - Social and Behavioral Sciences
researchProduct

Diversité des champignons mycorhiziens à arbuscules en association avec Acacia saligna dans différentes régions de la Tunisie

2022

Acacia saligna, appelée également Acacia cyanophylla, est une fabacée arbustive originaire de l'Australie. Cette plante a une grande résilience et s’adapte facilement à de nombreux écosystèmes différents, ce qui lui confère une importance économique forte. De plus, elle forme plusieurs symbioses racinaires avec des microorganismes qui favorisent son développement et améliorent sa résistance vis à vis de différents stress biotiques et abiotiques :(i) les rhizobiums qui fixent l’azote atmosphérique et (ii) les champignons mycorhiziens à arbuscules (CMA) En Tunisie, aucune étude ciblant des microorganismes formant des symbioses racinaires associées à A. saligna n’a été effectuée. Ce travail s’…

racine[SDV] Life Sciences [q-bio]solAcacia salignachampignon mycorhizien à arbusculesMiSeq IlluminaTunisiediversité
researchProduct

High Bias Voltage CZT Detectors for High-flux Measurements

2017

In this work, we present the performance of new travelling heater method (THM) grown CZT detectors, recently developed at IMEM-CNR Parma, Italy. Thick planar detectors (3 mm thick) with gold electroless contacts on CZT crystals grown by Redlen Technologies (Victoria BC, Canada) were realized, with a planar cathode covering the detector surface (4.1 x 4.1 mm(2)) and a central anode (2 x 2 mm(2)) surrounded by a guard ring electrode. The detectors, characterized by low leakage currents at room temperature (4.7 nA/cm(2) at 1000 V/cm), allow good room temperature operation even at high bias voltages (> 7000 V/cm). At low rates, the detectors exhibit an energy resolution around 4 % FWIEM at 59.5…

radiation detectorRadiology Nuclear Medicine and ImagingMaterials sciencePreamplifier02 engineering and technology01 natural scienceslaw.inventionlawpixel0103 physical sciencesInstrumentationNuclear and High Energy Physic010308 nuclear & particles physicsbusiness.industryDetectorSettore FIS/01 - Fisica SperimentaleElectrical engineeringBiasing021001 nanoscience & nanotechnologyPhoton countingCathodeSettore FIS/07 - Fisica Applicata(Beni Culturali Ambientali Biol.e Medicin)AnodeElectronic Optical and Magnetic MaterialsCZTFull width at half maximumHigh Fluxhigh bias voltageOptoelectronicssemiconductor detector0210 nano-technologybusinessVoltage
researchProduct