Search results for "Bach"
showing 10 items of 571 documents
Translating, Reliability Testing, and Validating a Norwegian Questionnaire to Assess Adolescents’ Intentions to be Physically Active After High Schoo…
2015
This is a scholarly, peer-reviewed article originally published in Sage Open under the terms of the Creative Commons Attribution 3.0 License (CC BY 3.0). You can access the article by following this link: http://dx.doi.org/10.1177/2158244015580374 Dette er en vitenskapelig, fagfellevurdert artikkel som opprinnelig ble publisert i Sage Open under betingelsene til lisensen Creative Commons Attribution 3.0 (CC BY 3.0). Du får tilgang til artikkelen via Sage Open ved å følge denne lenken: http://dx.doi.org/10.1177/2158244015580374 This study aimed to test the reliability and validity of a Norwegian measure of adolescents’ intentions to be physically active after graduation (the Intention to be …
Signatures of superfluidity for Feshbach-resonant Fermi gases
2004
We consider atomic Fermi gases where Feshbach resonances can be used to continuously tune the system from weak to strong interaction regime, allowing to scan the whole BCS-BEC crossover. We show how a probing field transferring atoms out of the superfluid can be used to detect the onset of the superfluid transition in the high-$T_c$ and BCS regimes. The number of transferred atoms, as a function of the energy given by the probing field, peaks at the gap energy. The shape of the peak is asymmetric due to the single particle excitation gap. Since the excitation gap includes also a pseudogap contribution, the asymmetry alone is not a signature of superfluidity. Incoherent nature of the non-con…
Quantum Spin Dynamics of Mode-Squeezed Luttinger Liquids in Two-Component Atomic Gases
2007
We report on the observation of the phase dynamics of interacting one-dimensional ultracold bosonic gases with two internal degrees of freedom. By controlling the non-linear atomic interactions close to a Feshbach resonance we are able to induce a phase diffusive many-body spin dynamics. We monitor this dynamical evolution by Ramsey interferometry, supplemented by a novel, many-body echo technique. We find that the time evolution of the system is well described by a Luttinger liquid initially prepared in a multimode squeezed state. Our approach allows us to probe the non-equilibrium evolution of one-dimensional many-body quantum systems.
Coherence and clock shifts in ultracold fermi gases with resonant interactions.
2007
Using arguments based on sum rules, we derive a general result for the average shifts of rf lines in Fermi gases in terms of interatomic interaction strengths and two-particle correlation functions. We show that near an interaction resonance shifts vary inversely with the atomic scattering length, rather than linearly as in dilute gases, thus accounting for the experimental observation that clock shifts remain finite at Feshbach resonances.
The coupling of the X1Σ+and a3Σ+states of the atom pair Na + Cs and modelling cold collisions
2006
The states X1?+ and a3?+ correlated to the ground-state asymptote of Na (3s) and Cs (6s) atoms have been experimentally investigated using high resolution Fourier-transform spectroscopy. The hyperfine splitting of the a3?+ state levels is partially resolved. Transitions to asymptotic vibrational levels of the a3?+ and X1?+ states were recorded simultaneously. The joint evaluation of the data of both the a3?+ and the X1?+ states allows us to determine accurate potential energy curves of both electronic states. Coupled-channels calculations are finally applied for deriving long range dispersion parameters and the exchange contribution of the molecular potentials, yielding a reliable descripti…
Macroecological properties of ammonites : spatial distribution, phylogeny, and faunal similarity
2016
The present work, which lies between macroecology and macroevolution, focuses on the spatio-temporal dynamics of early Pliensbachian ammonites of the western Tethys. Two main questions are addressed: how does inter-assemblage compositional similarity decrease with geographical distance? What is the relationship between species range size and phylogeny, species duration and latitudinal position?Ammonite dispersal dynamics are studied through a multi-scale Similarity Distance Decay analysis. We show that their long-distance dispersal is facilitated when the environment is more homogeneous and that it is not related to their morphology. This suggests that their long-distance dispersal occurred…
Język polski na Uniwersytecie Łotewskim w Rydze
2015
The Polish language at the Latvian University in RigaThe history of teaching of Polish language in the University of Latvia (LU) starts soon after its establishment in 1919. In the 1930s thanks to such famous scientists as Julian Krzyżanowski and Stanisław Kolbuszewski, the number of subjects connected with the Polish culture has increased at the Faculty of Philology and Philosophy and the Latvian society was introduced to the numerous works of these professors, published in different publications in Latvia. After the Second World War, Polish language has been taught within Russian philology with the aim of comparison Eastern and Western Slavic language groups. At the same time scientific w…
Assessing the Quality of the Bachelor Degree Courses: An Analysis of their Effects on Students' Acquisition of Economic Content Knowledge
2014
Qualitat der Bachelorstudiengange auf dem Prufstand: Analyse der Effekte auf den Erwerb des okonomischen Fachwissens Die Erfassung, Bewertung und Optimierung der Leistungen im Bereich der Lehre sind entscheidende Bestandteile einer Qualitatsentwicklung im Hochschulbereich. Fur die neuen BA- und MA-Studiengange liegen jedoch Ergebnisse objektiver Messungen zu zentralen Leistungsindikatoren wie Fachwissenserwerb der Studierenden bislang nur vereinzelt vor. Um diesem Erkenntnisdefizit zu begegnen, wurde in einer Langsschnittstudie das betriebs- und volkswirtschaftliche Wissen von Studierenden des BA/MA-Modells im Vergleich zum „alten“ Diplomstudienmodell erfasst und unter Kontrolle einer Vielz…
Development of a short questionnaire based on the Practice Environment Scale-Nursing Work Index in primary health care
2019
BackgroundProfessional nursing environments determine the quality of care and patient outcomes. Assessing the quality of environments is essential to improve and obtain better health outcomes. Simplifying and shortening the way to evaluate environments reliably is also important to help nurses better understand the strengths and weaknesses of their environments. In that sense, identifying essential elements of nursing environments would allow the construction of short assessment tools to improve such environments.ObjectiveTo construct a short tool to assess primary health care (PHC) nursing environments based on the Practice Environment Scale-Nursing Work Index (PES-NWI) questionnaire.Metho…
The Somatic Symptom Disorder - B Criteria Scale (SSD-12): Factorial structure, validity and population-based norms.
2017
The Somatic Symptom Disorder - B Criteria Scale (SSD-12) assesses the psychological features of DSM-5 Somatic Symptom Disorder (SSD). The present study investigates the dimensionality and psychometric properties in a general population sample and provides norm values.Test dimensionality was evaluated via confirmatory factor analysis and nonparametric item response theory. Correlational analyses and logistic regression models based on related measures (SSS 8, PHQ-2, GAD-2, Health Care Utilization) were used to derive predictive validity. Age and gender specific norms were derived via quantile regression.The SSD-12 has good item characteristics and excellent reliability (Cronbach's α=0.95). C…