Search results for "14"
showing 10 items of 9841 documents
Neuropeptide Y: una overview sugli effetti di neuro- ed immuno-modulazione
2002
Neutrino Flavor Sensitivity of Large Liquid Scintillator Detectors
2015
Abstract Scintillator detectors are known for their good light yield, energy resolution, timing characteristics and pulse shape discrimination capabilities. These features make the next-generation liquid scintillation detector LENA[1] (Low Energy Neutrino Astronomy) the optimal choice for a wide range of astro-particle topics including supernova-, solar-, and geo neutrinos. In addition to the excellent calorimetric and timing properties, scintillartor detectors (LSDs) are also capable of topology reconstruction sufficient to discriminate with adequate efficiency between electron and muon neutrino induced charge current events and neutral current events in the GeV energy range. This feature …
Decreasing muscle performance associated with increasing disease activity in patients with rheumatoid arthritis
2018
Objectives Increasing evidence suggests that inflammation has a detrimental effect on muscle strength. Our objective was to analyse the association between muscle performance and different disease activity levels in patients with rheumatoid arthritis (RA). Method A total of 199 consecutive outpatients were subject to cross-sectional assessment. Measurements of grip strength, endurance of the upper and lower limbs and trunk strength were combined as a muscle performance composite score (MPCS), using a standardised method. The disease activity for 28 joints (DAS28), radiographs of small joints (Larsen score), rheumatoid factor, body mass index (BMI), comorbidities and anti-rheumatic drugs wer…
Computational Structures and SAPT Interaction Energies of HXeSH···H2Y (Y=O or S) Complexes
2018
Ab initio calculations of the structures, vibrational spectra and supermolecular and symmetry-adapted perturbation theory (SAPT) interaction energies of the HXeOH and HXeSH complexes with H2O and H2S molecules are presented. Two minima already reported in the literature were reproduced and ten new ones were found together with some transition states. All complexes show blue shift in Xe&ndash
Noiseless Quantum Measurement and Squeezing of Microwave Fields Utilizing Mechanical Vibrations
2017
A process which strongly amplifies both quadrature amplitudes of an oscillatory signal necessarily adds noise. Alternatively, if the information in one quadrature is lost in phase-sensitive amplification, it is possible to completely reconstruct the other quadrature. Here we demonstrate such a nearly perfect phase-sensitive measurement using a cavity optomechanical scheme, characterized by an extremely small noise less than 0.2 quanta. We also observe microwave radiation strongly squeezed by 8 dB below vacuum. A source of bright squeezed microwaves opens up applications in manipulations of quantum systems, and noiseless amplification can be used even at modest cryogenic temperatures.
Generalized Noise Study of Solid-State Nanopores at Low Frequencies.
2017
Nanopore technology has been extensively investigated for analysis of biomolecules, and a success story in this field concerns DNA sequencing using a nanopore chip featuring an array of hundreds of biological nanopores (BioNs). Solid-state nanopores (SSNs) have been explored to attain longer lifetime and higher integration density than what BioNs can offer, but SSNs are generally considered to generate higher noise whose origin remains to be confirmed. Here, we systematically study low-frequency (including thermal and flicker) noise characteristics of SSNs measuring 7 to 200 nm in diameter drilled through a 20-nm-thick SiNx membrane by focused ion milling. Both bulk and surface ionic curren…
Novel non-destructive inspection techniques for laser powder deposition inspection
2013
A novel non-destructive testing (NDT) techniques for inspection of parts and components manufactured by Additive Manufacturing Processes (AMP), in particular Laser Metal Deposition (LMD), has been developed. LMD is a technology that has been maturing over the last 20 years and has found application in repair, coatings, hybrid build and 3D near net shape manufacture of small intricate parts that can be used in aero and automobile engines to improve efficiency. Currently this technology cannot be used to supply some of these parts because absence of flaws, which might be left in the component during manufacture, cannot be guaranteed. Today, quality is assessed by sample destructive testing, w…
Storiografie parallele. Cos'è la non-fiction?
2019
Il libro propone una teoria della categoria di narrativa non-finzionale nota come "non-fiction". Dopo una premessa storico-teorica si esamina la non-fiction in base alle forme e ai generi adoperati in questa categoria di scrittura, dopo di che si procede a un'analisi di temi e costanti concettuali condotta attraverso una lettura per campioni di testi degli ultimi trent'anni. Una breve considerazione su potenzialità e limiti discorsivi, commerciali, comunicativi della non-fiction italiana e straniera chiude il libro.
El desarrollo humano en la economía ética de Amartya Sen
2005
La tesis tiene como objetivo la fundamentación filosófica y el análisis desde la teoría económica del concepto de desarrollo humano según la propuesta de Amartya Sen. El punto de partida es un análisis de la globalización, sus posibilidades y sus deficiencias para ver qué papel puede jugar un concepto y una teoría como la del desarrollo humano. Una nueva propuesta que puede servir de guía y fundamento a los distintos proyectos y a la actividad de la cooperación al desarrollo que ponen en práctica los principales organismos internacionales, nacionales, empresas y todo tipo de organizaciones solidarias. En el capítulo I se realiza una contextualización de la tesis en el marco de la ética apli…
La aportación de la tragedia griega a la educación democrática.
2008
La presente tesis quiere demostrar que la tragedia griega clásica puede funcionar como una metáfora de un "arte democrático". Una democracia no sólo es consecuencia de aspectos económicos o de orden cultural, sino también del desarrollo de un imaginario democrático. Y es en dicho imaginario donde se inscriben las tragedias, consideradas como "mitos democráticos" ya que servían para reafirmar a la democracia ateniense. Las democracias precisan de razones, pero también de mitos democráticos. Por ello este género teatral tiene un papel activo en el paso de una paideía aristocrática a una democrática.