Search results for "Taus"
showing 10 items of 589 documents
Experimental Quantum Probing Measurements With No Knowledge on the System-Probe Interaction
2020
In any natural science, measurements are the essential link between theory and observable reality. Is it possible to obtain accurate and relevant information via measurement whose action on the probed system is unknown? In other words, can one be convinced to know something about the nature without knowing in detail how the information was obtained? In this paper, we show that the answer is surprisingly, yes. We construct and experimentally implement a quantum optical probing measurement where measurements on the probes, the photons' polarization states, are used to extract information on the systems, the frequency spectra of the same photons. Unlike the pre-existing probing protocols, our …
What can be learned from the Belle spectrum for the decay τ−→ντKSπ−
2008
Abstract A theoretical description of the differential decay spectrum for the decay τ − → ν τ K S π − , which is based on the contributing Kπ vector and scalar form factors F + K π ( s ) and F 0 K π ( s ) being calculated in the framework of resonance chiral theory (R χ T), additionally imposing constraints from dispersion relations as well as short distance QCD, provides a good representation of a recent measurement of the spectrum by the Belle Collaboration. Our fit allows to deduce the total branching fraction B [ τ − → ν τ K S π − ] = 0.427 ± 0.024 % by integrating the spectrum, as well as the K ∗ resonance parameters M K ∗ = 895.3 ± 0.2 MeV and Γ K ∗ = 47.5 ± 0.4 MeV , where the last t…
Stability of moving viscoelastic panels interacting with surrounding fluid
2012
We study a model describing the out-of-plane vibrations of an axially moving viscoelastic panel submerged in flowing fluid. The panel is assumed to travel at a constant velocity between two fixed supports, and it is modeled as a flat panel made of viscoelastic Kelvin-Voigt material. The fluid flow is modeled with the help of the added mass coefficients. The resulting dynamic equation is a partial differential equation of fifth order in space. Five boundary conditions are set for the studied problem. The behavior of the panel is analyzed with the help of its eigenvalues (eigenfrequencies). These characteristics are studied with respect to the velocity of the panel. In our study, we have incl…
Sajūtu veicināšana dabaszinību nodarbībās 2-3 gadīgiem bērniem brīvā dabā
2018
Lai teorētiski un praktiski izzinātu sajūtu attīstīšanas iespējas dabaszinību nodarbībās brīvā dabā darba autore Inta Ansonska izanalizējusi vairāku pētnieku uzskatus par 2-3 gadu vecu bērnu attīstības likumsakarībām un brīvdabas pedagoģijas pamatprincipiem sensoro spēju attīstīšanai, kā arī veikusi pedagoģisko izmēģinājumdarbību, izveidojot un novadot Jelgavas PII “Pasaciņa” jaunākā vecuma grupiņas bērniem pēc brīvdabas pedagoģijas principiem izstrādātu dabaszinību nodarbību ciklu “Rudens”. Darba autore secina, ka, gan pēc pieejamā teorētiskā materiāla, gan veicot praktiskās pedagoģiski eksperimentālās darbības, brīvdabas pedagoģijas principi ir ļoti iedarbīga sajūtu attīstīšanas veicināša…
Polynomial Regression and Measurement Error
2020
Many of the phenomena of interest in information systems (IS) research are nonlinear, and it has consequently been recognized that by applying linear statistical models (e.g., linear regression), we may ignore important aspects of these phenomena. To address this issue, IS researchers are increasingly applying nonlinear models to their datasets. One popular analytical technique for the modeling and analysis of nonlinear relationships is polynomial regression, which in its simplest form fits a "U-shaped" curve to the data. However, the use of polynomial regression can be problematic when the independent variables are contaminated with measurement error, and the implications of error can be m…
The Politics of Privacy - a Useful Tautology
2020
While communication and media studies tend to define privacy with reference to data security, current processes of datafication and commodification substantially transform ways of how people act in increasingly dense communicative networks. This begs for advancing research on the flow of individual and organizational information considering its relational, contextual and, in consequence, political dimensions. Privacy, understood as the control over the flow of individual or group information in relation to communicative actions of others, frames the articles assembled in this thematic issue. These contributions focus on theoretical challenges of contemporary communication and media privacy …
Continuous Analysis of Running Mechanics by Means of an Integrated INS/GPS Device
2019
This paper describes a single body-mounted sensor that integrates accelerometers, gyroscopes, compasses, barometers, a GPS receiver, and a methodology to process the data for biomechanical studies. The sensor and its data processing system can accurately compute the speed, acceleration, angular velocity, and angular orientation at an output rate of 400 Hz and has the ability to collect large volumes of ecologically-valid data. The system also segments steps and computes metrics for each step. We analyzed the sensitivity of these metrics to changing the start time of the gait cycle. Along with traditional metrics, such as cadence, speed, step length, and vertical oscillation, this system est…
Structural Validity of the Foot and Ankle Outcome Score for Orthopaedic Pathologies with Rasch Measurement Theory
2022
Publisher Copyright: © 2021 The Authors A B S T R A C T Background: The Foot and Ankle Outcome Score (FAOS) is one of the most frequently used patient reported outcome measures for foot and ankle conditions. The aim is to test the structural validity of the Finnish version of the FAOS using Rasch Measurement Theory. Methods: FAOS scores were obtained from 218 consecutive patients who received operative treatment for foot and ankle conditions. The FAOS data were fitted into the Rasch model and person separation index (PSI) calculated. Results: All the five subscales provided good coverage and targeting. Three subscales presented unidimensional structure. Thirty-eight of the 42 items had orde…
Web-sovellusten testaaminen Selenium-testaustyökalun avulla
2016
Eräs tapa testata web-sovelluksia on automaattinen testaus, jota tässä tutkielmassa tarkastellaan. Testaaminen on web-sovelluksen elinkaaressa tärkeä osa, sillä websovelluksilta vaaditaan nykyään paljon niin käytettävyyden, turvallisuuden kuin tehokkuudenkin osalta. Tutkielmassa käydään läpi automaattisen testauksen perusperiaatteita ja esitellään web-sovellusten automaattiseen testaukseen käytettävää työkalua nimeltä Selenium. Selenium rakentuu useasta eri komponentista ja tämä tutkielma perehtyy erityisesti näistä kahteen: Selenium IDE-ohjelmointiympäristöön sekä WebDriver-rajapintaan. One way to test web applications is automated testing which this thesis examines. Software testing is an…