Search results for "Instrument"
showing 10 items of 5652 documents
Measurement of the top quark pair production cross-section with ATLAS in the single lepton channel
2012
A measurement of the production cross-section for top quark pairs (t[bar over t]) in pp collisions at √s = 7 TeV is presented using data recorded with the ATLAS detector at the Large Hadron Collider. Events are selected in the single lepton topology by requiring an electron or muon, large missing transverse momentum and at least three jets. With a data sample of 35 pb[superscript −1], two different multivariate methods, one of which uses b-quark jet identification while the other does not, use kinematic variables to obtain cross-section measurements of σ[subscript t bar over t] = 187 ± 11 (stat.) [+18 over −17] (syst.) ± 6 (lumi.) pb and σ[subscript t bar over t] = 173 ± 17 (stat.) [+18 ove…
Silicon Strip Detectors for the ATLAS End-Cap Tracker at the HL-LHC
2017
El LHC se ha convertido en el acelerador más potente de todos los tiempos. Su principal objetivo es dar respuesta a las limitaciones del Modelo Estándar y revelar la física más allá de él. El descubrimiento del bosón de Higgs en 2012 supuso el comienzo de una era en el campo de la física de partículas donde conseguir la mayor precisión posible en las medidas es vital. En el LHC se aceleran y colisionan protones con una energía nominal de centro de masas de 14 TeV y una luminosidad instantánea nominal de 10^34 cm−2 s−1. Para la máxima luminosidad, los protones son acelerados en paquetes de 1.15 ×10^11 protones cada uno, con una frecuencia de 40 MHz (esto supone una colisión cada 25 ns). Esta…
User Orientation Through Experience: A Study of Hobbyist Knowing in Product Development
2007
Those who are involved in hobbyist communities and share the values and practices of these communities often also innovate new products. Users are important actors in innovations. Recently, a lot of attention has been paid to users in relation to product development processes and especially user innovations. This article points out that product development team members are often simultaneously users themselves and they can be important translators of “hobbyist knowing” into organizational practices. Hobbyist knowing refers to the practice of making sense of situations through concrete activities and participation in particular social and physical circumstances and practices. This article st…
Kredītiestāžu noregulējums un finanšu kapitāla tirgus komisijas darbība Latvijā pēc vienotā noregulējuma mahānisma spēkā stāšanās.
2018
Vienotais noregulējuma mehānisms rada bezprecedenta izmaiņas pieejā kredītiestādēm, kas rada gan juridiskas, gan sociālas, gan politiskas, gan ekonomiskas sekas. Tā potenciālie ieguvumi ES ekonomikai, politiskie kompromisi, pie kuriem nācās nonāk, lai tas stātos spēkā un iespēja atbrīvot nodokļu maksātājus no maksātnespējīgu kredītiestāžu glābšanas ir būtiskāko jautājumu starpā, kas apvij Vienoto noregulējuma mehānismu. Pēdējo divu gadu laikā par noregulējuma piemērošanu tika lemts attiecībā uz divām Latvijas bankām, taču ne Trasta Komercbankai, ne ABLV Bankai noregulējums piemērots netika, jo to glābšana nebija sabiedrības interesēs. Šajā darbā tiek apskatīti problēmjautājumi Vienotā noreg…
Eos: conceptual design for a demonstrator of hybrid optical detector technology
2023
Abstract Eos is a technology demonstrator, designed to explore the capabilities of hybrid event detection technology, leveraging both Cherenkov and scintillation light simultaneously. With a fiducial mass of four tons, Eos is designed to operate in a high-precision regime, with sufficient size to utilize time-of-flight information for full event reconstruction, flexibility to demonstrate a range of cutting edge technologies, and simplicity of design to facilitate potential future deployment at alternative sites. Results from Eos can inform the design of future neutrino detectors for both fundamental physics and nonproliferation applications. This paper describes the conceptual design and po…
Design and performance of the prototype Schwarzschild-Couder telescope camera
2022
Journal of astronomical telescopes, instruments, and systems 8(01), 014007-1 (2022). doi:10.1117/1.JATIS.8.1.014007
Immuno-MALDI-MS in Human Plasma and on-Chip Biomarker Characterizations at the Femtomole Level
2012
Immuno-SPR-MS is the combination of immuno-sensors in biochip format with mass spectrometry. This association of instrumentation allows the detection and the quantification of proteins of interest by SPR and their molecular characterization by additional MS analysis. However, two major bottlenecks must be overcome for a wide diffusion of the SPR-MS analytical platform: (i) To warrant all the potentialities of MS, an enzymatic digestion step must be developed taking into account the spot formats on the biochip and (ii) the biological relevancy of such an analytical solution requires that biosensing must be performed in complex media. In this study, we developed a procedure for the detection …
Innovative ultrasound systems for preclinical studies: design and production of new instruments and set-ups for in vitro and in vivo experiments – Si…
Dialogic Learning Environments That Enhance Instrumental Learning and Inclusion of Students With Special Needs in Secondary Education
2021
Across Europe, the enrolment of students with special educational needs in regular classrooms is increasing, although it does not always mean access to high quality educational experience. In this context, inclusive education has been enhanced in most educational systems, but its successful implementation is still limited and has become a challenge in most countries, and specially in secondary education, when segregation due to learning achievement is more frequent. Educational practices that take into account the potential of promoting learning interactions within heterogeneous groups of students have already demonstrated contributing to educational inclusion of students with special needs…
Screening of complicated grief
2013
Objetivo: Conocer en profundidad el fenómeno del duelo complicado o patológico, y recabar aquellos indicadores de detección y evaluación que nos permitan su pronta identificación en la práctica clínica. Método: Tras una amplia revisión de la literatura científica aparecida en los últimos años, y a la luz de nuestra experiencia profesional, se realizó una recopilación de los indicadores más significativos. Resultados: Presentamos los principales criterios diagnósticos e instrumentos de medida utilizados en la actualidad, que permiten a los profesionales del ámbito de la salud valorar con precisión posibles complicaciones en el proceso de duelo. Conclusiones: Contamos con importantes indicado…