cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
A Cross-Country and Cross-Time Comparison of the Human Values Measurements with the Second Round of the European Social Survey
Creators: name: Davidov, Eldad
Publisher: name: European Survey Research Association
Year: 2008
Subjects: European Social Survey; configural, metric, and scalar invariance; human values; multiple-group confirmatory factor analysis (MGCFA); cross-country comparison

description: The study reported in this paper assesses the fit of a 21-item instrument measuring values in the second round of the European Social Survey (ESS) to the theory of 10 basic values on which it was based (Schwartz 1992). In particular, the measurement invariance of this instrument for studying value priorities across nations and over time was investigated. In the first part of the study, using multi-group confirmatory factor analysis (MGCFA) of data from the second ESS round, configural, metric, and scalar invariance of the values are assessed across 25 countries. Metric invariance is a necessary condition to insure equivalence of the meaning of factors and a precondition for comparing values’ correlates. Scalar invariance is a precondition for comparing value means. The MGCFA did not support configural and metric invariance across 25 countries. After reducing the number of countries to 14, the MGCFA supported metric invariance of a model with seven distinct values, the same values identified with data from the first ESS round. These value measurements may now be used by researchers to study relationships among values, attitudes, behavior, and sociodemographic characteristics across the 14 nations. Comparing national value means may be possible only across a smaller set of countries where scalar invariance holds. In the second part of the study, metric and scalar invariance were established between the first and the second rounds of the ESS in each of 19 countries separately. Value means may be compared for each of the countries between the first and second ESS rounds (2002-2003 and 2004-2005, respectively).
description: Survey Research Methods, Vol 2, No 1 (2008)
Supernovae, Lensed CMB and Dark Energy
Creators: name: Hu, Wayne
name: Huterer, Dragan
name: Smith, Kendrick M.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Supernova distance and primary CMB anisotropy measurements provide powerful probes of the dark energy evolution in a flat universe but degrade substantially once curvature is marginalized. We show that lensed CMB polarization power spectrum measurements, accessible to next generation ground based surveys such as SPTpol or QUIET, can remove the curvature degeneracy at a level sufficient for the SNAP and Planck surveys and allow a measurement of sigma(w_p)=0.03, sigma(w_a)=0.3 jointly with sigma(Omega_K)=0.0035. This expectation assumes that the sum of neutrino masses is independently known to better than 0.1 eV. This assumption is valid if the lightest neutrino is assumed to have negligible mass in a normal neutrino mass hierarchy and is potentially testable with upcoming direct laboratory measurements.
description: 4 pages, 4 figures, submitted to ApJL
Ενδυναμωτική ηγεσία και καινοτόμα εργασιακή συμπεριφορά: Ο διαμεσολαβητικός ρόλος της εργασιακής σμίλευσης και της εργασιακής δέσμευσης
Creators: name: Ρήγα, Βασιλική Χρήστου
Publisher: name: Aristotle University of Thessaloniki
Year: 2019
Subjects: ενδυναμωτική ηγεσία
εργασιακή σμίλευση
εργασιακή δέσμευση
καινοτόμα εργασιακή συμπεριφορά
empowering leadership
job crafting
work engagement
innovative work behavior

description: Σκοπός της παρούσας διπλωματικής εργασίας είναι η διεξοδική ανάλυση της έννοιας της ενδυναμωτικής ηγεσίας στο πλαίσιο των σχολικών μονάδων της δευτεροβάθμιας εκπαίδευσης. Αναλυτικότερα, μελετάται η έννοια της ενδυναμωτικής ηγεσίας σε γενικό πλαίσιο και έπειτα εμβαθύνει στο πως συμβάλλει στη διαμόρφωση καινοτόμας εργασιακής συμπεριφοράς. Παράλληλα, επικεντρώνεται στην ενδυνάμωση των εκπαιδευτικών, πως την κατανοούν οι ίδιοι καθώς και τα εργασιακά αποτελέσματα που αυτή αποφέρει. Η συγκεκριμένη εργασία εξετάζει την επίδραση του ενδυναμωτικού χαρακτήρα της ηγεσίας στην ανάπτυξη καινοτόμας συμπεριφοράς μέσω του διαμεσολαβητικού ρόλου της εργασιακής σμίλευσης και της εργασιακής δέσμευσης. Στα πλαίσια της εργασίας, διενεργήθηκε εμπειρική έρευνα με την αξιοποίηση ενός ερωτηματολογίου αυτο-αναφοράς που απαντήθηκε από 177 εκπαιδευτικούς του Νομού Φθιώτιδας. Τα αποτελέσματα της έρευνας δείχνουν τη συσχέτιση της ενδυναμωτικής ηγεσίας με την καινοτόμα συμπεριφορά μέσω της εργασιακής σμίλευσης και της εργασιακής δέσμευσης. Στο τέλος, παρατίθενται χρήσιμες πρακτικές που απευθύνονται σε στελέχη της εκπαίδευσης καθώς και αποτυπώνονται οι περιορισμοί της έρευνας και προτάσεις για τη μελλοντική της επέκταση
description: The aim of this thesis is to analyze in detail the concept of empowering leadership within the framework of greek public schools of secondary education. More specifically, the concept of empowering leadership is being studied and then it depthens into how it contributes to the development of innovative work behavior. At the same time, it focuses on teachers’ empowerment, understanding how they work, and the work outcomes. This paper examines the impact of the empowering leadership on the development of innovative work behavior through the mediating role of job crafting and work engagement. In this context, empirical research was carried out using a self-reporting questionnaire, answered by 177 teachers in the Prefecture of Fthiotida. The results of the survey highlight the relationship between empowering leadership and innovative behavior through job crafting and work engagement. Finally, there are useful implications for school principals, as well as research constraints and proposals for future expansion
Physical Properties of Tidal Features in Interacting Disk Galaxies
Creators: name: Oh, Sang Hoon
name: Kim, Woong-Tae
name: Lee, Hyung Mok
name: Kim, Jongsoo
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We explore tidal interactions of a galactic disk with Toomre parameter Q ~ 2 embedded in rigid halo/bulge with a point mass companion moving in a prescribed parabolic orbit. Tidal interactions produce well-defined spiral arms and extended tidal features such as bridge and tail that are all transient, but distinct in nature. In the extended disks, strong tidal force is able to lock the perturbed epicycle phases of the near-side particles to the perturber, shaping them into a tidal bridge that corotates with the perturber. A tidal tail develops at the opposite side as strongly-perturbed, near-side particles overtake mildly-perturbed, far-side particles. The tail is essentially a narrow material arm with a roughly logarithmic shape, dissolving with time because of large velocity dispersions. Inside the disks where tidal force is relatively weak, on the other hand, a two-armed logarithmic spiral pattern emerges due to the kinematic alignment of perturbed particle orbits. While self-gravity makes the spiral arms a bit stronger, the arms never become fully self-gravitating, wind up progressively with time, and decay after the peak almost exponentially in a time scale of ~ 1 Gyr. The arm pattern speed varying with both radius and time converges to Omega-kappa/2 at late time, suggesting that the pattern speed of tidally-driven arms may depend on radius in real galaxies. We present the parametric dependences of various properties of tidal features on the tidal strength, and discuss our findings in application to tidal spiral arms in grand-design spiral galaxies. (Abridged)
description: 49 pages, 17 figures, 1 table. Accepted for publication in Astrophysical Journal. PDF version with higher resolution figures is available at http://astro.snu.ac.kr/~shoh/research/publications/astroph/Tidally_Induced_Spiral_Structure.pdf
The one-loop renormalization of the gauge sector in the noncommutative standard model
Creators: name: Buric, Maja
name: Radovanovic, Voja
name: Trampetic, Josip
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In this paper we construct a version of the standard model gauge sector on noncommutative space-time which is one-loop renormalizable to first order in the expansion in the noncommutativity parameter $θ$. The one-loop renormalizability is obtained by the Seiberg-Witten redefinition of the noncommutative gauge potential for the model containing the usual six representations of matter fields of the first generation.
description: 16 pages, 2 figures
Comparability and Usability:  Key issues in the design of internet forms for New Zealand’s 2006 Census of Populations and Dwellings
Creators: name: Potaka, Lyn
Publisher: name: European Survey Research Association
Year: 2008
Subjects: Questionnaire design, On-line forms, Internet survey, Mode effects, Usability, Census

description: Designing internet questionnaires to collect data that will ultimately be comparable with the data collected from paper questionnaires can present a number of challenges for developers.  This paper discusses the design and development of internet forms for use in a mixed-mode Census in New Zealand in 2006.  Using experiences from the design and testing of prototype forms, it describes design features intended to take full advantage of the capabilities of the internet mode, while preserving the qualities of paper based responding to help prevent mode effects.  The discussion also highlights the role of usability testing as a key tool in evaluating the success of those design strategies and ensuring that the forms would be simple and easy to use.
description: Survey Research Methods, Vol 2, No 1 (2008)
Additional file 1 of Psychometric properties of patient-reported outcome measures for dysphagia in head and neck cancer: a systematic review protocol using COSMIN methodology
Creators: name: Manduchi, Beatrice
name: Che, Zhiyao
name: Fitch, Margaret I.
name: Ringash, Jolie
name: Howell, Doris
name: Martino, Rosemary
Publisher: name: figshare
Year: 2022
Subjects: subject: Space Science
subject: Medicine
subject: Biotechnology
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences
subject: Science Policy

description: Additional file 1. PRISMA-P 2015 Checklist.
Black Holes: from Speculations to Observations
Creators: name: Baumgarte, Thomas W.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: This paper provides a brief review of the history of our understanding and knowledge of black holes. Starting with early speculations on ``dark stars'' I discuss the Schwarzschild "black hole" solution to Einstein's field equations and the development of its interpretation from "physically meaningless" to describing the perhaps most exotic and yet "most perfect" macroscopic object in the universe. I describe different astrophysical black hole populations and discuss some of their observational evidence. Finally I close by speculating about future observations of black holes with the new generation of gravitational wave detectors.
description: 15 pages, 6 Figures; to appear in the Proceedings of the Albert Einstein Century International Conference, Paris, France, 2005
Improving Standard Poststratification Techniques For Random-Digit-Dialing Telephone Surveys
Creators: name: Battaglia, Michael P.
name: Frankel, Martin R.
name: Link, Michael W.
Publisher: name: European Survey Research Association
Year: 2008
Subjects: nonresponse; weighting; raking; RDD survey; BRFSS

description: Random-digit-dialing surveys in the United States such as the Behavioral Risk Factor Surveillance System (BRFSS) typically poststratify on age, gender and race/ethnicity using control totals from an appropriate source such as the 2000 Census, the Current Population Survey, or the American Community Survey.  Using logistic regression and interaction detection software we identified key "main effect" socio-demographic variables and important two-factor interactions associated with several health risk factor outcomes measured in the BRFSS, one of the largest annual RDD surveys in the United States. A procedure was developed to construct control totals, which were consistent with estimates of age, gender, and race/ethnicity obtained from a commercial source and distributions of other demographic variables from the Current Population Survey.  Raking was used to incorporate main effects and two-factor interaction margins into the weighting of the BRFSS survey data.  The resulting risk factor estimates were then compared with those based on the current BRFSS weighting methodology and mean squared error estimates were developed. The research demonstrates that by identifying socio-demographic variables associated with key outcome variables and including these variables in the weighting methodology, nonresponse bias can be substantially reduced.
description: Survey Research Methods, Vol 2, No 1 (2008)
High-order synchronization, transitions, and competition among Arnold tongues in a rotator under harmonic forcing
Creators: name: Garcia-Alvarez, David
name: Stefanovska, Aneta
name: McClintock, Peter V. E.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: We consider a rotator whose equation of motion for the angle $θ$ consists of the zeroth and first Fourier modes. Numerical analysis based on the trailing of saddle-node bifurcations is used to locate the n:1 Arnold tongues where synchronization occurs. Several of them are wide enough for high-order synchronization to be seen in passive observations. By sweeping the system parameters within a certain range, we find that the stronger the dependence of $\dotθ$ on $θ$, the wider the regions of synchronization. Use of a synchronization index reveals a vast number of very narrow n:m Arnold tongues. A competition phenomenon among the tongues is observed, in that they "push" and "squeeze" one another: as some tongues widen, others narrow. Two mechanisms for transitions between different n:m synchronization states are considered: slow variation of the driving frequency, and the influence of low-frequency noise on the rotator.
description: 10 pages, 7 figures, revtex. Many major changes compared to previous version. As appears in Physical Review E, except that the last editions by the publishers do not appear here
Ενημερωμένη συγκατάθεση στην ογκολογική κλινική έρευνα
Creators: name: Μαγουλά, Βασιλική Νικολάου
Publisher: name: Aristotle University of Thessaloniki
Year: 2019
Subjects: Ενημερωμένη συγκατάθεση
Κλινική έρευνα
Κλινική μελέτη
Ογκολογία
Informed consent
Clinical research
Clinical study
Oncology

description: Σκοπός της διπλωματικής εργασίας ήταν η μελέτη της ενημερωμένης συγκατάθεσης στην κλινική έρευνα στην ογκολογία. Εξετάσαμε άρθρα ερευνών που έχουν διεξαχθεί σχετικά με το θέμα. Τα άρθρα επιλέχθηκαν από την βάση δεδομένων Pubmed με όρους να αφορούν κλινική έρευνα στην ογκολογία και να μελετούν πτυχές του εντύπου και της διαδικασίας ενημερωμένης συγκατάθεσης. Από τα άρθρα που επιλέχθηκαν αναλύθηκαν ποιοτικά τα θέματα που μελετήθηκαν και ομαδοποιήθηκαν ώστε να μπορέσουμε να βγάλουμε κάποια συμπεράσματα. Εντοπίστηκαν ομάδες θεμάτων και αναλύθηκε η συχνότητα εμφάνισης τους στα επιλεγμένα άρθρα, καθώς και η σημασία τους για την περαιτέρω εξέλιξη και βελτίωση της διαδικασίας της ενημερωμένης συγκατάθεσης στην κλινική έρευνα στο θεραπευτικό πεδίο της ογκολογίας.
description: The aim of the present thesis was to analyze the process of informed consent in clinical research in oncology. We analyzed articles regarding research conducted on the subject. The articles were selected from the Pubmed database under the conditions that they concerned clinical research in oncology and examined aspects of the informed consent document and process. From the articles selected a qualitative analysis of the themes that came forward and t these themes were grouped and analyzed in order to extract conclusions. We located and groups of themes and analyzed the frequency of appearance in the selected articles as well as their significance in the future development and improvement of the informed consent process in the therapeutic area of oncology.
The Influence of the Design of Web Survey Questionnaires on the Quality of Responses
Creators: name: Ganassali, Stéphane
Publisher: name: European Survey Research Association
Year: 2008
Subjects: Web surveys; questionnaires; response quality

description: he first objective of this article is to propose a conceptual framework of the effects of on-line questionnaire design on the quality of collected responses. Secondly, we present the results of an experiment where different protocols have been tested and compared in a randomised design using the basis of several quality indexes.
Starting from some previous categorizations, and from the main factors identified in the literature, we first propose an initial global framework of the questionnaire and question characteristics in a web survey, divided into five groups of factors. Our framework was built to follow the response process successive stages of the contact between the respondent and the questionnaire itself. 
Then, because it has been studied in the survey methodology literature in a very restricted way, the concept of `response quality' is discussed and extended with some more `qualitative' criteria that could be helpful for researchers and practitioners, in order to obtain a deeper assessment of the survey output.
As an experiment, on the basis of the factors chosen as major characteristics of the questionnaire design, eight versions of a questionnaire related to young people's consumption patterns were created. The links to these on-line questionnaires were sent in November 2005 to a target of 10,000 young people. The article finally presents the results of our study and discusses the conclusions. Very interesting results come to light; especially regarding the influence of length, interaction and question wording dimensions on response quality. We discuss the effects of Web-questionnaire design characteristics on the quality of data.
description: Survey Research Methods, Vol 2, No 1 (2008)
Internet Surveys: Can Statistical Adjustments Eliminate Coverage Bias?
Creators: name: Dever, Jill A
name: Rafferty, Ann
name: Valliant, Richard
Publisher: name: European Survey Research Association
Year: 2008
Subjects: Internet penetration, undercoverage, calibration estimation, poststratification, US Behavioral Risk Factor Surveillance Survey (BRFSS)

description: The Internet is an attractive mode of data collection to survey researchers due to cost savings and timeliness in comparison with other modes.  However, survey estimates are subject to coverage bias if sampled persons with Internet access are systematically different from those without Internet access who were excluded from the survey.  Statistical adjustments, either through weighting or modeling methods, can minimize or even eliminate bias due to non-coverage.  In the current paper, we examine the coverage bias associated with conducting a hypothetical Internet survey on frame of persons obtained through a random-digit-dial (RDD) sample.  We compare estimates collected during telephone interviews from households with and without Internet access using data from the 2003 Michigan Behavioral Risk Factor Surveillance System in the United States.  Statistical models are developed such that the coverage bias is negligible for most of the health outcomes analyzed from the Michigan survey.  Though not definitive, the analysis results suggest that statistical adjustments can reduce, if not eliminate, coverage bias in the situation we study.
description: Survey Research Methods, Vol 2, No 2 (2008)
A Note on Interviewer Performance Measures in centralised CATI Surveys
Creators: name: Lipps, Oliver
Publisher: name: European Survey Research Association
Year: 2008
Subjects: non-response, interviewer performance, contact level, multiple membership, cross-classified multilevel, random assignment

description: Interviewer performance with respect to convincing sample members to participate in surveys is an important dimension of survey quality. However, unlike in CAPI surveys where each sample case ‘belongs’ to one interviewer, there are hardly any good measures of interview performance for centralised CATI surveys, where even single contacts are assigned to interviewers at random. If more than one interviewer works one sample case, it is not clear how to attribute success or failure to the interviewers involved. In this article, we propose two correlated methods to measure interviewer contact performance in centralised CATI surveys. Their modelling must take complex multilevel clustering effects, which need not be hierarchical, into account. Results are consistent with findings from CAPI data modelling, and we find that when comparing effects with a direct (‘naive’) measure of interviewer contact results, interviewer random effects are largely underestimated using the naive measure.
description: Survey Research Methods, Vol 2, No 2 (2008)
An evaluation of the weighting procedures for an online access panel survey
Creators: name: Loosveldt, Geert
name: Sonck, Nathalie
Publisher: name: European Survey Research Association
Year: 2008
Subjects: online access panel, representative samples, weighting procedures, propensity score adjustment

description: Opinion research is frequently carried out through the Internet and a further increase can be expected. The article focuses on the online access panel, in which respondents are previously recruited through non-probability methods. Despite substantial time- and cost-reduction, online access panel research mainly has to cope with limited Internet coverage and self-selection in the recruitment phase of new panel members. The article investigates whether frequently applied weighting procedures, based on poststratification variables and propensity scores, make online access panel data more representative of the general population. To address this issue, the answers to identical questions are compared between an online self-administered survey of previously recruited online access panel respondents and a face-to-face survey of randomly sampled respondents of the general population. Both respondent groups were surveyed at a similar moment in time (2006-2007) in the same geographical region (Flanders, Belgium). The findings reveal many significant differences, regarding sociodemographic characteristics as well as attitudes towards work, politics and immigrants. The results can be explained by both the specific characteristics of the respondent groups and mode effects. Weighting adjustment had only a minor impact on the results and did not eliminate the differences.
description: Survey Research Methods, Vol 2, No 2 (2008)
Using Reinterview and Reconciliation Methods to Design and Evaluate Survey Questions
Creators: name: Morton, Jeremy E.
name: Mullin, Paul
name: Biemer, Paul
Publisher: name: European Survey Research Association
Year: 2008
Subjects: reinterview, reconciliation, questionnaire design

description: Conducting reinterviews is an effective method to estimate and reduce response errors in interview surveys.  As part of the School Health Policies and Programs Study 2000 (SHPPS), RTI used reinterview methods to assist in designing and evaluating survey questions.  Reinterviews were conducted in the field test with selected respondents to identify discrepancies between the original interviews and reinterviews. Reconciliation interviews were then conducted to determine the reasons for the discrepancies in terms of comprehension, recall, encoding, response options, or other problems. In this paper, we describe the design of the reinterview and reconciliation study and discuss the implications of using these methods for questionnaire design and evaluation, specifically in comparison to cognitive interviewing.
description: Survey Research Methods, Vol 2, No 2 (2008)
Neutron and Proton Transverse Emission Ratio Measurements and the Density Dependence of the Asymmetry Term of the Nuclear Equation of State
Creators: name: Famiano, M. A.
name: Liu, T.
name: Lynch, W. G.
name: Mocko, M.
name: Rogers, A. M.
name: Tsang, M. B.
name: Wallace, M. S.
name: Charity, R. J.
name: Komarov, S.
name: Sarantites, D. G.
name: Sobotka, L. G.
name: Verde, G.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: Recent measurements of pre-equilibrium neutron and proton transverse emission from (112,124)Sn+(112,124)Sn reactions at 50 MeV/A have been completed at the National Superconducting Cyclotron Laboratory. Free nucleon transverse emission ratios are compared to those of A=3 mirror nuclei. Comparisons are made to BUU transport calculations and conclusions concerning the density dependence of the asymmetry term of the nuclear equation-of-state at sub-nuclear densities are made. The double-ratio of neutron-proton ratios between two reactions is employed as a means of reducing first-order Coulomb effects and detector efficiency effects. Comparison to BUU model predictions indicate a density dependence of the asymmetry energy that is closer to a form in which the asymmety energy increases as the square root of the density for the density region studied. A coalescent-invariant analysis is introduced as a means of reducing suggested difficulties with cluster emission in total nucleon emission. Future experimentation is presented.
Στα 200 μέτρα από το σχολείο μου: δράσεις έρευνας και νοηματοδότησης του ιστορικού τοπίου της Θεσσαλονίκης από μαθητές της δευτεροβάθμιας εκπαίδευσης
Creators: name: Αυγερινού, Δέσποινα Αρίσταρχου
Publisher: name: Aristotle University of Thessaloniki
Year: 2019
Subjects: Μουσειοπαιδαγωγική
Ιστορικό τοπίο Θεσσαλονίκης
Πρότζεκτ δευτεροβάθμιας εκπαίδευσης
Museum educational project
Historic landscape of Thessaloniki
Secondary education project

description: Η παρούσα εργασία αποτελεί πρόταση προσέγγισης, διερεύνησης και νοηματοδότησης του ιστορικού τοπίου στο κέντρο της Θεσσαλονίκης από μαθητές δευτεροβάθμιας εκπαίδευσης σε ακτίνα 200 μέτρων από τη σχολική τους μονάδα. Η κομβική θέση του σχολείου σε σχέση με σημαντικά μνημεία, κτιριακά σύνολα, δημόσια κτίρια και σημεία ιστορικά φορτισμένα στο κέντρο της πόλης της Θεσσαλονίκης αποτέλεσε το έναυσμα για την υλοποίηση του συγκεκριμένου πρότζεκτ. Η χωρική εγγύτητα, ωστόσο, των ιστορικών ιχνών στο αστικό τοπίο δεν εξασφαλίζει αυτόματα μεγαλύτερο βαθμό διανοητικής ή συναισθηματικής διείσδυσης. Η σφυρηλάτηση μιας βαθύτερης γνωστικής και αισθητηριακής σχέσης με το ιστορικό τοπίο και τις πηγές του προϋποθέτει ένα συντονισμένο πλαίσιο προσέγγισης που να ανατρέπει την επιφανειακή και μηχανιστική ανάγνωσή τους. Για τον σκοπό αυτό σχεδιάστηκε και εφαρμόστηκε η συγκεκριμένη εκπαιδευτική παρέμβαση, η οποία, μέσα από διαφορετικές δράσεις, επιχειρεί να ενεργοποιήσει τους μαθητές ώστε να εισαχθούν σε μια δημιουργική διαδικασία διερεύνησης και νοηματοδότησης.
description: The present thesis is a proposal for approaching, researching and assigning meaning to the historic landscape in the centre of Thessaloniki. The project is designed for secondary school students and conducted within a 200 metre radius of their school. The school’s pivotal location in relation to important monuments, building complexes, public buildings and historically charged places is what triggered this project. However, the spatial proximity of the historic traces in the urban landscape does not necessarily guarantee a higher degree of cognitive or emotional permeation. Forging a deeper cognitive or sensory relationship to the historic landscape and its sources presupposes a coordinated approach framework which will overturn its superficial and mechanical “reading”. To this end, we designed and implemented the present project, which employed different activities in an attempt to motivate students and engage them into a constructive research and meaning-making process.
description: Σε συνεργασία με: Παιδαγωγικό Δημοτικής Εκπαίδευσης (Πανεπιστήμιο Δυτικής Μακεδονίας)
A linear Stark shift in dressed atoms as a signal to measure a nuclear anapole moment with a cold atom fountain or interferometer
Creators: name: Bouchiat, Marie-Anne
Publisher: name: arXiv
Year: 2006
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We demonstrate theoretically the existence of a linear dc Stark shift of the individual substates of an alkali atom in its ground state, dressed by a circularly polarized laser field. It arises from the electroweak nuclear anapole moment violating P but not T. It is characterized by the pseudoscalar equal to the mixed product formed with the photon angular momentum and static electric and magnetic fields. We derive the relevant left-right asymmetry with its complete signature in a field configuration selected for a precision measurement with cold atom beams. The 3,3 to 4,3 Cs hyperfine-transition frequency shift amounts to 7 $μ$Hz for a laser power of about 1 kW at 877 nm, E=100 kV/cm and B larger than 0.5 G.
description: Article, 4 pages, 2 figures
COSTUME DESIGN FOR L’ENFANT ET LES SORTILÈGES
Creators: name: Fulop, Kate Julia
Publisher: name: Digital Repository at the University of Maryland
Year: 2015
Subjects: subject: Theater
subject: Performing arts
subject: Costume Design
subject: Design
subject: Opera
subject: Ravel
subject: Theatre

description: The purpose of this thesis is explore the artistic concepts, design process and execution of Kate Fulop’s costume design for the Maryland Opera Studio’s production of L’enfant et les sortilèges by Maurice Ravel and score by Collette. L’enfant et les sortilegès opened on April 17th, 2015 in the University of Maryland’s Kay Theatre under the direction of Nicholas Olcott, conducted by Craig Kier, movement by Karin Abromaitis.  The design team included set designer April Joy Vester and Lighting design by Brittany Shemuga. This document includes a detailed explanation of the design process including conceptual approach statements, color renderings, revisions and in process, fitting, and production photos. This document will also follow the problem solving and realization process from a paper to design to an actualized design.
Quasar H II Regions During Cosmic Reionization
Creators: name: Alvarez, Marcelo A.
name: Abel, Tom
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Cosmic reionization progresses as HII regions form around sources of ionizing radiation. Their average size grows continuously until they percolate and complete reionization. We demonstrate how this typical growth can be calculated around the largest, biased sources of UV emission, such as quasars, by further developing an analytical model based on the excursion set formalism. This approach allows us to calculate the sizes and growth of the HII regions created by the progenitors of any dark matter halo of given mass and redshift with a minimum of free parameters. Statistical variations in the size of these pre-existing HII regions are an additional source of uncertainty in the determination of very high redshift quasar properties from their observed HII region sizes. We use this model to demonstrate that the transmission gaps seen in very high redshift quasars can be understood from the radiation of only their progenitors and associated clustered small galaxies. The fit sets a lower limit on the redshift of overlap at z = 5.8 +/- 0.1. This interpretation makes the transmission gaps independent of the age of the quasars observed. If this interpretation were correct it would raise the prospects of using radio interferometers currently under construction to detect the epoch of reionization.
description: 6 pages, 3 figures, accepted by MNRAS, revised to match published version
Median
Creators: name: Hackett, Rob
Publisher: name: Digital Repository at the University of Maryland
Year: 2015
Subjects: subject: Fine arts
subject: Hackett
subject: Printmaking
subject: Rob
subject: Sculpture

description: This thesis discusses the idea of median as it relates to both a physical barrier as well as a reference to the center point along a set of information. The navigation of the built environment and the memories generated by the interactions with it inform my current body of sculptural and print work.
Low heat conduction in white dwarf boundary layers?
Creators: name: Liu, F. K.
name: Meyer, F.
name: Meyer-Hofmeister, E.
name: Burwitz, V.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: X-ray spectra of dwarf novae in quiescence observed by Chandra and XMM-Newton provide new information on the boundary layers of their accreting white dwarfs. Comparison of observations and models allows us to extract estimates for the thermal conductivity in the accretion layer and reach conclusions on the relevant physical processes. We calculate the structure of the dense thermal boundary layer that forms under gravity and cooling at the white dwarf surface on accretion of gas from a hot tenuous ADAF-type coronal inflow. The distribution of density and temperature obtained allows us to calculate the strength and spectrum of the emitted X-ray radiation. They depend strongly on the values of thermal conductivity and mass accretion rate. We apply our model to the dwarf nova system VW Hyi and compare the spectra predicted for different values of the thermal conductivity with the observed spectrum. We find a significant deviation for all values of thermal conductivity that are a sizable fraction of the Spitzer conductivity. A good fit arises however for a conductivity of about 1% of the Spitzer value. This also seems to hold for other dwarf nova systems in quiescence. We compare this result with thermal conduction in other astrophysical situations. The highly reduced thermal conductivity in the boundary layer requires magnetic fields perpendicular to the temperature gradient. Locating their origin in the accretion of magnetic fields from the hot ADAF-type coronal flow we find that dynamical effects of these fields will lead to a spatially intermittent, localized accretion geometry at the white dwarf surface.
description: 8 pages, 5 figs, to appear in Astronomy & Astrophysics
Incentive-Compatible Kidney Exchange in a Slightly Semi-Random Model
Creators: name: Blum, Avrim
name: Gölz, Paul
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computer Science and Game Theory (cs.GT)
subject: Theoretical Economics (econ.TH)
subject: FOS: Computer and information sciences
subject: FOS: Economics and business

description: Motivated by kidney exchange, we study the following mechanism-design problem: On a directed graph (of transplant compatibilities among patient-donor pairs), the mechanism must select a simple path (a chain of transplantations) starting at a distinguished vertex (an altruistic donor) such that the total length of this path is as large as possible (a maximum number of patients receive a kidney). However, the mechanism does not have direct access to the graph. Instead, the vertices are partitioned over multiple players (hospitals), and each player reports a subset of her vertices to the mechanism. In particular, a player may strategically omit vertices to increase how many of her vertices lie on the path returned by the mechanism. Our objective is to find mechanisms that limit incentives for such manipulation while producing long paths. Unfortunately, in worst-case instances, competing with the overall longest path is impossible while incentivizing (approximate) truthfulness, i.e., requiring that hiding nodes cannot increase a player's utility by more than a factor of $1 + o(1)$. We therefore adopt a semi-random model where a small ($o(n)$) number of random edges are added to worst-case instances. While it remains impossible for truthful mechanisms to compete with the overall longest path, we give a truthful mechanism that competes with a weaker but non-trivial benchmark: the length of any path whose subpaths within each player have a minimum average length. In fact, our mechanism satisfies even a stronger notion of truthfulness, which we call matching-time incentive compatibility. This notion of truthfulness requires that each player not only reports her nodes truthfully but also does not stop the returned path at any of her nodes in order to divert it to a continuation inside her own subgraph.
description: Full version of EC'21 paper
Additional file 1 of Integrated Palliative Outcome Scale for People with Dementia: easy language adaption and translation
Creators: name: Spichiger, Frank
name: Keller Senn, Anita
name: Volken, Thomas
name: Larkin, Philip
name: Koppitz, Andrea
Publisher: name: figshare
Year: 2022
Subjects: subject: Medicine
subject: Sociology
subject: FOS: Sociology

description: Additional file 1. Level of agreement regarding concepts, content, experience and semantics during phase IV - expert review.
Observation of Bs->K+K- and Measurements of Branching Fractions of Charmless Two-body Decays of B0 and Bs Mesons in p-pbar Collisions at sqrt(s)=1.96 TeV
Creators: name: CDF Collaboration
name: Abulencia, A.
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We search for decays of the type B0(Bs)->h+h'- (where h,h'= K or pi) in 180 pb-1 of p-pbar collisions collected at the Tevatron by the upgraded Collider Detector at Fermilab. We report the first observation of the new mode Bs->K+K- with a yield of 236 +- 32 events, corresponding to (f_s/f_d)*BR(Bs->K+K-)/BR(B0->K+pi-) = 0.46+-0.08(stat.)+-0.07(syst.), where f_s/f_d is the ratio of production fractions of Bs and B0. We find results in agreement with world averages for the B0 modes, and set the following new limits at 90% CL: BR(Bs->K-pi+) < 5.6*10^{-6} and BR(Bs->pi+pi-) < 1.7*10^{-6}.
description: 7 Pages, 2 Figures. v3: added minor corrections made in proof before publication
Good Kids: A Lighting Design
Creators: name: Segarra, Alberto
Publisher: name: Digital Repository at the University of Maryland
Year: 2015
Subjects: subject: Theater
subject: Design
subject: Lighting
subject: Theatre

description: The purpose of this thesis is to provide research, supporting paperwork, documentation of the process and results of the lighting design for the University of Maryland – College Park, School of Theatre, Dance, and Performance Studies production of Good Kids. This thesis contains the following: research images collected to develop and visually communicate ideas about color, intensity, form, composition and mood to the production team; storyboard with research images and description to depict the arc of lighting design; preliminary and final organization of desired equipment to execute the lighting design; a full set of drafting plates and supplementary paperwork used to communicate the organization and placement of lighting equipment to the master electrician; magic sheets and cue list used as organizational tools for the lighting designer during the tech process. Archival production photographs are included as documentation of the completed design.
TESS Hunt for Young and Maturing Exoplanets (THYME) V: A Sub-Neptune Transiting a Young Star in a Newly Discovered 250 Myr Association
Creators: name: Tofflemire, Benjamin M.
name: Rizzuto, Aaron C.
name: Newton, Elisabeth R.
name: Kraus, Adam L.
name: Mann, Andrew W.
name: Vanderburg, Andrew
name: Nelson, Tyler
name: Hawkins, Keith
name: Wood, Mackenna L.
name: Zhou, George
name: Quinn, Samuel N.
name: Howell, Steve B.
name: Collins, Karen A.
name: Schwarz, Richard P.
name: Stassun, Keivan G.
name: Bouma, Luke G.
name: Essack, Zahra
name: Osborn, Hugh
name: Boyd, Patricia T.
name: Furesz, Gabor
name: Glidden, Ana
name: Twicken, Joseph D.
name: Wohler, Bill
name: McLean, Brian
name: Ricker, George R.
name: Vanderspek, Roland
name: Latham, David W.
name: Seager, S.
name: Winn, Joshua N.
name: Jenkins, Jon M.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The detection and characterization of young planetary systems offers a direct path to study the processes that shape planet evolution. We report on the discovery of a sub-Neptune-size planet orbiting the young star HD 110082 (TOI-1098). Transit events we initially detected during TESS Cycle 1 are validated with time-series photometry from Spitzer. High-contrast imaging and high-resolution, optical spectra are also obtained to characterize the stellar host and confirm the planetary nature of the transits. The host star is a late F dwarf (M=1.2 Msun) with a low-mass, M dwarf binary companion (M=0.26 Msun) separated by nearly one arcminute (~6200 AU). Based on its rapid rotation and Lithium absorption, HD 110082 is young, but is not a member of any known group of young stars (despite proximity to the Octans association). To measure the age of the system, we search for coeval, phase-space neighbors and compile a sample of candidate siblings to compare with the empirical sequences of young clusters and to apply quantitative age-dating techniques. In doing so, we find that HD 110082 resides in a new young stellar association we designate MELANGE-1, with an age of 250(+50/-70) Myr. Jointly modeling the TESS and Spitzer light curves, we measure a planetary orbital period of 10.1827 days and radius of Rp = 3.2(+/-0.1) Earth radii. HD 110082 b's radius falls in the largest 12% of field-age systems with similar host star mass and orbital period. This finding supports previous studies indicating that young planets have larger radii than their field-age counterparts.
description: Accepted to AJ, 20 figures, 7 tables, 1 appendix
Additional file 1 of Age, period, and cohort effects on trends in outpatient addiction care utilization in the general Berlin population from 2008 to 2016
Creators: name: Specht, Sara
name: Schwarzkopf, Larissa
name: Braun-Michl, Barbara
name: Seitz, Nicki-Nils
name: Wildner, Manfred
name: Kraus, Ludwig
Publisher: name: figshare
Year: 2022
Subjects: subject: Biotechnology
subject: Ecology
subject: FOS: Biological sciences
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: Science Policy

description: Additional file 1. Supplementary Table for the estimation of the IRR, 95% CI, and P-values for AUD- and ISUD-related utilization and Supplementary Figures and Tables regarding the sensitivity analyses SA1-SA3
The Lost World A Scenic Design
Creators: name: Francis, Lydia Marie
Publisher: name: Digital Repository at the University of Maryland
Year: 2015
Subjects: subject: Theater
subject: Design
subject: Scenic
subject: Theater

description: The purpose of this thesis is to provide research, supporting paperwork, production photographs and other materials that document the scenic design process for the production of Jared Mezzocchi’s new play The Lost World at the University of Maryland – College Park, Department of Theater Dance and Performance Studies. This thesis contains the following: research images collected to express emotional landscape; location; shapes; forms; texture; scale and mood; preliminary sketches; photographs of the ¼” scale model; a full set of drafting plates and paint elevations used to communicate the design to the production team; a unit list naming each scenic element; a prop list and prop book to detail each hand prop, furniture piece, and consumable to the prop master; and archival production photographs to document the completed design.
The last of the seven-parton tree amplitudes
Creators: name: de Florian, Daniel
name: Zurita, Jose
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We compute the four-quark plus three-gluon and six-quark plus one-gluon tree level amplitudes using on-shell recursion relations. They are needed for the calculation of the 5-jet cross-section at the Born level, and constitute an essential ingredient for next-to-leading order 4-jet and next-to-next-to-leading order 3-jet production at hadronic colliders. Very compact expressions for all possible helicity configurations are provided, allowing direct implementation in computer codes. With the results presented in this paper, the full set of seven-parton tree amplitudes becomes available.
description: 23 pages
Mutatio
Creators: name: Williams, Stephen
Publisher: name: Digital Repository at the University of Maryland
Year: 2015
Subjects: subject: Fine arts

description: There is a separation between the seen and the unseen, material and immaterial, sacred and mundane.  My creative work explores this divide.  It begins with the found object; from there my interest focuses on the transformation that occurs when object becomes image.  Through the use of photography, combining of images and shift in scale, these objects become decontextualized and dematerialized, furthering the ambiguity around prior function, material and value.  The camera is both microscope and paintbrush in the way in which the resulting works expose levels of details that, when enlarged beyond life-size, begin to take on characteristics of a painted image.
Additional file 1 of Perspectives of physicians and pharmacists on rational use of antibiotics in Turkey and among Turkish migrants in Germany, Sweden and the Netherlands: a qualitative study
Creators: name: Özcebe, Hilal
name: Üner, Sarp
name: Karadag, Ozge
name: Daryani, Achraf
name: Gershuni, Olga
name: Czabanowska, Katarzyna
name: Brand, Helmut
name: Erdsiek, Fabian
name: Aksakal, Tuğba
name: Brzoska, Patrick
Publisher: name: figshare
Year: 2022
Subjects: subject: Medicine
subject: Biotechnology
subject: Sociology
subject: FOS: Sociology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Science Policy

description: Additional file 1. Supplement for “Perspectives of physicians and pharmacists on rational use of antibiotics in Turkey and among Turkish migrants in Germany, Sweden and the Netherlands: A qualitative study “(Ozcebe et al.). Guides used for qualitative interviews.
Infant-Directed Speech: Maternal Pitch Variability, Rate of Speech, and Child Language Outcomes
Creators: name: Raneri, Daniele Palma
Publisher: name: Digital Repository at the University of Maryland
Year: 2015
Subjects: subject: Speech therapy
subject: child-directed speech
subject: child language
subject: infant-directed speech
subject: motherese
subject: pitch variability
subject: speech rate

description: Research regarding the influence of specific features typical of infant-directed speech (IDS) and their potential role in facilitating children’s language development is still needed. Very little evidence links features of IDS to specific or general language outcomes. Surprisingly, given their pervasive description, the potential impacts of slowed speech rate and increased pitch variability of IDS on child language outcomes have not been examined. This study asks whether decreased speech rate and increased pitch variability in IDS among 42 mother-infant dyads at 7, 10/11, 18, and 24 months predicts language outcomes at two years. Decreased maternal speech rate at seven months related to increased child expressive language outcomes at two years. Contrary to hypotheses, children who were exposed to IDS characterized by decreased pitch variability at seven months had greater expressive language outcomes at two years than children who were exposed to IDS with increased pitch variability. Possible interpretations and clinical ramifications are discussed.