cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
The Effectiveness of the Item Count Technique in Eliciting Valid Answers to Sensitive Questions. An Evaluation in the Context of Self-Reported Delinquency
Creators: name: Wolter, Felix
name: Laier, Bastian
Publisher: name: European Survey Research Association
Year: 2014
Subjects: survey methodology; item count technique; response bias; sensitive questions; social desirability

description: Surveys often contain sensitive questions, that is, questions about private, illegal, or socially undesirable behavior. When asked directly in standard survey modes, respondents tend to underreport these behaviors, yielding biased results. One method that promises more valid estimates than direct questioning (DQ) is the item count technique (ICT). In this paper, methodological benefits and disadvantages of the ICT, as compared to DQ, are empirically evaluated with regard to questions on self-reported delinquency. We present findings from a face-to-face survey of 552 respondents who had been convicted under criminal law prior to the survey. The results show that, first, subjective measures of survey quality such as trust in anonymity or willingness to respond are not affected positively by the ICT with the exception that interviewers feel less uncomfortable asking sensitive questions in ICT mode than in DQ mode. Second, all prevalence estimates of self-reported delinquent behaviors are significantly higher in ICT than in DQ mode. Third, a regression model on determinants of response behavior indicates that the effect of the ICT on response validity varies by gender. All in all, our results are in favor of the ICT. This technique is a promising alternative to other special questioning techniques such as the much more complicated randomized response technique (RRT).
description: Survey Research Methods, Vol 8, No 3 (2014)
Thermodynamic versus Topological Phase Transitions: Cusp in the Kertész Line
Creators: name: Blanchard, Philippe
name: Gandolfo, Daniel
name: Ruiz, Jean
name: Wouts, Marc
Publisher: name: arXiv
Year: 2008
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We present a study of phase transitions of the Curie--Weiss Potts model at (inverse) temperature $β$, in presence of an external field $h$. Both thermodynamic and topological aspects of these transitions are considered. For the first aspect we complement previous results and give an explicit equation of the thermodynamic transition line in the $β$--$h$ plane as well as the magnitude of the jump of the magnetization (for $q \geqslant 3)$. The signature of the latter aspect is characterized here by the presence or not of a giant component in the clusters of a Fortuin--Kasteleyn type representation of the model. We give the equation of the Kertész line separating (in the $β$--$h$ plane) the two behaviours. As a result, we get that this line exhibits, as soon as $q \geqslant 3$, a very interesting cusp where it separates from the thermodynamic transition line.
Going Online with a Face-to-Face Household Panel: Effects of a Mixed Mode Design on Item and Unit Non-Response
Creators: name: Jäckle, Annette
name: Lynn, Peter
name: Burton, Jon
Publisher: name: European Survey Research Association
Year: 2015
Subjects: longitudinal survey, mixed mode survey, non-response, respondent incentives, response rate, web survey

description: There are considerable cost and timeliness advantages associated with web interviewing, compared to interviewer administration. However, web surveys do not perform well in terms of coverage and participation. To harness the strengths of both modes, existing probability-based interviewer-administered surveys are therefore being pushed to consider a mixed mode approach, including web. We assess the effect of introducing web interviewing as part of a mixed-mode design in the context of an existing longitudinal survey in which sample members have previously been interviewed face-to-face. Using experimental data from a household panel survey in the UK, we find that the mixed mode design resulted in a lower proportion of households fully responding. However, more than one in five households fully responded
online. Overall, individual response rates were also lower with the mixed mode design, and we were unable to identify any subgroups where the reverse was true. Also, item nonresponse rates were higher with the mixed mode design.
description: Survey Research Methods, Vol 9, No 1 (2015)
Comparing transient oligonucleotide hybridization kinetics using DNA-PAINT and optoplasmonic single-molecule sensing on gold nanorods
Creators: name: Eerqing, Narima
name: Subramanian, Sivaraman
name: Rubio, Jesús
name: Lutz, Tobias
name: Wu, Hsin-Yu
name: Anders, Janet
name: Soeller, Christian
name: Vollmer, Frank
Publisher: name: arXiv
Year: 2021
Subjects: subject: Optics (physics.optics)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Soft Condensed Matter (cond-mat.soft)
subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: We report a comparison of two photonic techniques for single-molecule sensing: fluorescence nanoscopy and optoplasmonic sensing. As the test system, oligonucleotides with and without fluorescent labels are transiently hybridized to complementary docking strands attached to gold nanorods. Comparing the measured single-molecule kinetics helps to examine the influence of fluorescent labels as well as factors arising from different sensing geometries. Our results demonstrate that DNA dissociation is not significantly altered by the fluorescent label, while DNA association is affected by geometric factors in the two techniques. These findings open the door to exploiting plasmonic sensing and fluorescence nanoscopy in a complementary fashion, which will aid in building more powerful sensors and uncovering the intricate effects that influence the behavior of single molecules.
description: 8 pages, 3 figures, 1 table. Added an analysis for another DNA strand plus several control experiments
Mean observed and predicted response delays from Causes of delayed outbreak responses and their impacts on epidemic spread
Creators: name: Tao, Yun
name: Probert, William J. M.
name: Shea, Katriona
name: Runge, Michael C.
name: Lafferty, Kevin
name: Tildesley, Michael
name: Ferrari, Matthew
Publisher: name: The Royal Society
Year: 2021
Subjects: Computational Biology

description: Mean observed and predicted response delays on infected premises (IPs) grouped by farm size, control demand, and case report dates. IPs are separated into two size classes: farms that contain more than 500 livestock (red) and those with smaller populations (blue). Their response times are aggregated by the level of control demand, with the means calculated for each group (dots). From the same covariate values of farm size and control demand, delays are also simulated using the method of inverse probability integral transform. 1000 simulation replicates are run for each IP setting and their means are similarly aggregated and averaged by group (circles and lines). Note that the simulations of disposal delays on IPs reported prior to 1 April (c) depend only on farm size due to the insignificant effect of control demand (see Tables 1 and S2). The corresponding distribution of control demand is shown in each panel. Dashed line marks the 24 hours period.
Non-integrability of the Kepler and the two-body problem on the Heisenberg group
Creators: name: Stachowiak, Tomasz
name: Maciejewski, Andrzej J.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mathematical Physics (math-ph)
subject: Classical Analysis and ODEs (math.CA)
subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences
subject: FOS: Mathematics
subject: 37J30, 70F05, 70H07, 70G45, 53C17

description: The analog of the Kepler system defined on the Heisenberg group introduced by Montgomery and Shanbrom in [Fields Inst. Commun., Vol. 73, Springer, New York, 2015, 319-342, arXiv:1212.2713] is integrable on the zero level of the Hamiltonian. We show that in all other cases the system is not Liouville integrable due to the lack of additional meromorphic first integrals. We prove that the analog of the two-body problem on the Heisenberg group is not integrable in the Liouville sense.
description: 12 pages; final accepted version
Numerically Exact Generalized Green's Function Cluster Expansions for Electron-Phonon Problems
Creators: name: Carbone, Matthew R.
name: Reichman, David R.
name: Sous, John
Publisher: name: arXiv
Year: 2021
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We generalize the family of approximate momentum average methods to formulate a numerically exact, convergent hierarchy of equations whose solution provides an efficient algorithm to compute the Green's function of a particle dressed by bosons suitable in the entire parameter regime. We use this approach to extract ground-state properties and spectral functions. Our approximation-free framework, dubbed the generalized Green's function cluster expansion (GGCE), allows access to exact numerical results in the extreme adiabatic limit, where many standard methods struggle or completely fail. We showcase the performance of the method, specializing three important models of charge-boson coupling in solids and molecular complexes: the molecular Holstein model, which describes coupling between charge density and local distortions, the Peierls model, which describes modulation of charge hopping due to intersite distortions, and a more complex Holstein+Peierls system with couplings to two different phonon modes, paradigmatic of charge-lattice interactions in organic crystals. The GGCE serves as an efficient approach that can be systematically extended to different physical scenarios, thus providing a tool to model the frequency dependence of dressed particles in realistic settings.
description: 13 pages, 6 figures main text + 1 figure appendices
Statistical Mechanics of a Cat's Cradle
Creators: name: Shen, Tongye
name: Wolynes, Peter G.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: It is believed that, much like a cat's cradle, the cytoskeleton can be thought of as a network of strings under tension. We show that both regular and random bond-disordered networks having bonds that buckle upon compression exhibit a variety of phase transitions as a function of temperature and extension. The results of self-consistent phonon calculations for the regular networks agree very well with computer simulations at finite temperature. The analytic theory also yields a rigidity onset (mechanical percolation) and the fraction of extended bonds for random networks. There is very good agreement with the simulations by Delaney et al. (Europhys. Lett. 2005). The mean field theory reveals a nontranslationally invariant phase with self-generated heterogeneity of tautness, representing ``antiferroelasticity''.
description: 4 pages, 4 figures
Comparisons of Cox models of response delays from Causes of delayed outbreak responses and their impacts on epidemic spread
Creators: name: Tao, Yun
name: Probert, William J. M.
name: Shea, Katriona
name: Runge, Michael C.
name: Lafferty, Kevin
name: Tildesley, Michael
name: Ferrari, Matthew
Publisher: name: The Royal Society
Year: 2021
Subjects: Computational Biology

description: Comparisons of Cox proportional hazards regression models of response delays on infected premises (IPs) using ANOVA.
Evaporation and growth of crystals - propagation of step density compression waves at vicinal surfaces
Creators: name: Ranguelov, Bogdan
name: Stoyanov, Stoyan
Publisher: name: arXiv
Year: 2007
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: We studied the step dynamics during crystal sublimation and growth in the limit of fast surface diffusion and slow kinetics of atom attachment-detachment at the steps. For this limit we formulate a model free of the quasi-static approximation in the calculation of the adatom concentration on the terraces at the crystal surface. Such a model provides a relatively simple way to study the linear stability of a step train in a presence of step-step repulsion and an absence of destabilizing factors (as Schwoebel effect, surface electromigration etc.). The central result is that a critical velocity of the steps in the train exists which separates the stability and instability regimes. When the step velocity exceeds its critical value the plot of these trajectories manifests clear space and time periodicity (step density compression waves propagate on the vicinal surface). This ordered motion of the steps is preceded by a relatively short transition period of disordered step dynamics.
description: 18 pages, 6 figures
Temporal variations in logistical quantities from Causes of delayed outbreak responses and their impacts on epidemic spread
Creators: name: Tao, Yun
name: Probert, William J. M.
name: Shea, Katriona
name: Runge, Michael C.
name: Lafferty, Kevin
name: Tildesley, Michael
name: Ferrari, Matthew
Publisher: name: The Royal Society
Year: 2021
Subjects: Computational Biology

description: Temporal variations in quantities of logistical factors affecting control efforts on infected premises (IPs) during the 2001 foot-and-mouth epidemic in the UK. Top panel: Mean size of IPs across report dates. Middle panels: Mean levels of control demand on culling and disposal responses to IPs across report dates. Bottom panel: Mean value of farm density within a 5km radius from IPs across report dates.
A newly opened Galaxy platform at Clermont Auvergne University
Creators: name: GOUE, Nadia
name: Grimbichler, David
name: Peyret, Pierre
name: Mahul, Antoine
Publisher: name: F1000 Research Limited
Year: 2019

description: The Mesocentre as part of Clermont Auvergne University (UCA) is delivering services in sciences data computing (HPC, VM, …) and short-term storage through a network of technology core facilities. These offers are done to assist multi-disciplinary scientists in their computing projects. At that time, we are hosting a computer farm with about 800 cores, 40 nodes for moderate memory usage (<256 GB) and a SMP supercomputer made of 384 cores and 12 TB memory in addition to a CEPH storage of at least 1 TB capacity by user, with a total of 1.2 PB.
Hosted by the Mesocentre, the AuBi (Auvergne bioinformatics) platform is a member of IFB (French Bioinformatics Institute, https://www.france-bioinformatique.fr/). AuBi platform aims at sharing expertises and knowledge in large-scale data treatments and analysis by supplying a complete computing environment with hardware and software infrastructures for initially 9 UCA research laboratories. To fit this goal, a Galaxy server was installed as a facilitator for a computing access to non-bioinformatician biologists. As AuBi platform is involved in various projects, tools related to genomics, metagenomics and transcriptomics were installed to the Galaxy instance as well as homemade tools from a local toolshed.
To an informatics infrastructure point of view, our Galaxy server is installed behind a reverse proxy galaxy.mesocentre.uca.fr on a RBD system connected to the HPC facilities with a NFS server to empower computing and storage capabilities. It’s sharing the LDAP to authenticate users on the cluster and on Galaxy. In addition, we get use of BioMaJ1 for sharing databanks access to both cluster and Galaxy. In the future, we expect the users from the IFB community to connect via eduGAIN.
2D contour shape analysis for automated herring roe quality grading by computer vision
Creators: name: Beatty, D. Andrew
Publisher: name: University of British Columbia
Year: 2009

description: A method has been developed to analyze the two-dimensional contour of naturally varying objects and to automatically assess the amount of shape variation that would be perceived by a person. Specifically, a software system was developed to assess the shape quality of herring roe sacs from a single overhead image. The shape difference from first grade to lower grade roe sacs calculated by the system matched well with that perceived by human roe graders, who select shape based on its appeal to the consumer. The principle motivation for this work is its application in the fishing industry, which requires both speed and robustness from the system, as well as grading accuracy. This software forms the basis of an actual industrial application, the prototype of which is currently under development. Objects in the image are segmented using brightness thresholding and by ensuring they do not not overlap. Morphological processing is used to filter out irrelevant shape features such as overlapping parasites and small broken pieces. The major principal axis of area serves as a reference axis for width measurements along the length of the shape. These measurements are the basis for deriving shape features. While this representation restricts the shapes to which the algorithm can be applied, it has worked well for roe sacs. Shape comparison involves taking the magnitude of the vector difference between the smoothed tangent angles at each measurement along the edges of each shape. This provides an effective measure of the human-perceived difference between the shapes, which can be used in combination with an internal database of acceptable shapes (either individuals or large data set clustering) to function as a shape assessment expert. In practice an internal database of 200 roe sacs has proven effective and sufficiently fast for comparison. A final shape difference measure is arrived at by averaging the 3 smallest shape comparison values obtained when comparing a sample with every database sample. In tests of sorting first from second grade roe sacs, the system has achieved overall accuracy of 81 ± 2 %. This compares with human grading accuracy, in which the entire three-dimensional shape of the sac is examined, of approximately 92%. The theoretical accuracy limit from two-dimensional contour information is estimated to be within a few per-cent of 85%. To be useful in practice, a grading approach is used in which only roe sacs which are determined to be first grade with high certainty are selected and the remainder are sorted by hand. Using this approach, the system can automatically select out half of a processor's bulk roe with a high (for the industry) accuracy of 97% for the selected sacs.
Flat-band solutions in $D$-dimensional decorated diamond and pyrochlore lattices: Reduction to molecular problem
Creators: name: Mizoguchi, Tomonari
name: Katsura, Hosho
name: Maruyama, Isao
name: Hatsugai, Yasuhiro
Publisher: name: arXiv
Year: 2021
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Flat-band models have been of particular interest from both fundamental aspects and realization in materials. Beyond the canonical examples such as Lieb lattices and line graphs, a variety of tight-binding models are found to possess flat bands. However, analytical treatment of dispersion relations is limited, especially when there are multiple flat bands with different energies. In this paper, we present how to determine flat-band energies and wave functions in tight-binding models on decorated diamond and pyrochlore lattices in generic dimensions $D \geq 2$. For two and three dimensions, such lattice structures are relevant to various organic and inorganic materials, and thus our method will be useful to analyze the band structures of these materials.
description: 13 pages, 10 figures
Η ουσιαστική περάτωση της κύριας ανάκρισης κατ' εξαίρεση στα κακουργήματα των ναρκωτικών
Creators: name: Ζαχαριάς, Αριστείδης Χρήστου
Publisher: name: Aristotle University of Thessaloniki
Year: 2019
Subjects: Ναρκωτικά
Ανάκριση
Απευθείας στο ακροατήριο
Addictive substances
Main investigation
Referral process

description: Στην παρούσα εργασία αναλύεται το δικονομικό πλαίσιο, μετά την ουσιαστική περάτωση της κύριας ανάκρισης, στα κακουργήματα του νόμου περί εξαρτησιογόνων ουσιών (Ν. 4139/2013). Περαιτέρω, ερευνάται η αλληλεπίδραση της παρ. 2 γ του άρθρου 43 του νόμου περί εξαρτησιογόνων ουσιών (Ν. 4139/2013), έναντι της ρύθμισης του άρθρου 308Α του Κώδικα Ποινικής Δικονομίας. Η έσχατη τροποποίηση του τελευταίου άρθρου του ΚΠΔ με τον Ν. 4509/2017 επιδρά καταλυτικά στην ουσιαστική περάτωση της ανάκρισης, μεταξύ άλλων και στα κακουργήματα διακίνησης ναρκωτικών, η δικονομική μεταχείριση των οποίων διεπόταν μέχρι πρότινος, αποκλειστικά, από την ειδική διάταξη της παρ. 2 γ του άρθρου 43 Ν 4139/2013. Η παρούσα διπλωματική εργασία επιδιώκει μία εκτενή ανάλυση του νέου δικονομικού πλαισίου, για τα κακουργήματα των ναρκωτικών, αναλύοντας παράλληλα τις διαφορετικές απόψεις και την κριτική, που έχει ασκηθεί σε αυτό. Η εργασία αυτή διατυπώνει την άποψη, ότι το νέο άρθρο 308Α ΚΠΔ κατισχύει του άρθρου 43 Ν 4139/2013, στα ζητήματα που συναντάται με αυτό, ως προφανώς νεότερη ρύθμιση, η οποία σαφώς αποτυπώνει την βούληση του νομοθέτη, ως προς το ζήτημα
description: This paper analyzes the procedural framework after the substantive termination of the main investigation (referral process) into the crimes of the law on addictive substances (Law 4139/2013). Furthermore the interaction of paragraph 2c of Article 43 of the Law on Substance Abuse (Law 4139/2013) is being investigated against the provisions of Article 308A of the Code of Criminal Procedure. The last modification of the last article of the Code of Criminal Procedure by Law 4509/2017 has a catalytic effect on the substantive termination of the main investigation (referral process), including the drug trafficking crimes, the procedural treatment of which was governed exclusively by the special provision of para. 2 c of Article 43 Law 4139/2013. This paper seeks an extensive analysis of the new procedural framework for drug offenses, while analyzing the different views and criticisms that have been made of it. This paper takes the view that the new Article 308A of the Code of Criminal Procedure overrides Article 43 Law 4139/2013 on the issues encountered with it as an apparently more recent regulation, which clearly reflects the legislator's intention on the matter
description: Σε συνεργασία με το Πανεπιστήμιο Λευκωσίας Κύπρου
The effects of a pyrrolidine functional group on the magnetic properties of N@C60
Creators: name: Zhang, Jinying
name: Morton, John J. L.
name: Sambrook, Mark R.
name: Porfyrakis, Kyriakos
name: Ardavan, Arzhang
name: Briggs, G. Andrew D.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: A new stable pyrrolidine functionalized fullerene derivative, C69H10N2O2, has been synthesized, purified by high performance liquid chromatography, and characterized by MALDI mass spectrometry, ultraviolet-visible spectroscopy, Fourier transform infrared, 1H and 13C nuclear magnetic resonance. The magnetic properties of the analogous endohedral species have been studied by both continuous wave (CW) and pulsed EPR. CW-EPR spectra indicated an anisotropic hyperfine interaction and a permanent zero-field-splitting (ZFS). Both CW and pulsed EPR showed the ZFS parameter Deff to be around 17 MHz. Pulsed EPR revealed a biexponential decay in both T1 and T2, yielding a molecular tumbling correlation time of 31.4 +/- 2.5 ps.
description: 5 pages, 5 figures
Simulated timeline of response delays from Causes of delayed outbreak responses and their impacts on epidemic spread
Creators: name: Tao, Yun
name: Probert, William J. M.
name: Shea, Katriona
name: Runge, Michael C.
name: Lafferty, Kevin
name: Tildesley, Michael
name: Ferrari, Matthew
Publisher: name: The Royal Society
Year: 2021
Subjects: Computational Biology

description: Mean daily delays to culling (purple) and disposal (green) over report dates, simulated as a function of farm size, control demand, and policy timeframes (time-dependent response).
Tackling city-regional dynamics into a survey using grid sampling
Creators: name: Laaksonen, Seppo
name: Kemppainen, Teemu
name: Kortteinen, Matti
name: Stjernberg, Mats
name: Vaattovaara, Mari
name: Lönnqvist, Henrik
Publisher: name: European Survey Research Association
Year: 2015
Subjects: 250 m x 250 m grids, conditional sampling design, administrative auxiliary variables

description: The paper considers a Finnish human survey that takes advantage of explicit stratification. Stratification is not ordinary, since there are two types of stratification. In one, the strata are municipality based that are much used earlier. But in the second, these take advantage of the grid data base in which the grid size is 250 metres times 250 metres.  Using the grid data base the two explicit strata are constructed, one consisting of such grids where the median tax income of the adults is low (called ‘poor’ grids), whereas the median income is high in the second explicit stratum of such grids (‘rich’ grids). In order to correctly handle these both stratified data, it is required first to merge them together, next to create the single sampling weights, and finally, due to 60 per cent non-response to adjust for these weights. This helps in reducing the bias of the estimates. The adjustment is strengthened with good auxiliary data both from the grid data base and other administrative sources
description: Survey Research Methods, Vol 9, No 1 (2015)
Flat band, spin-1 Dirac cone, and Hofstadter diagram in the fermionic square kagome model
Creators: name: Mizoguchi, Tomonari
name: Kuno, Yoshihito
name: Hatsugai, Yasuhiro
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We study characteristic band structures of the fermions on a square kagome lattice, one of the two-dimensional lattices hosting a corner-sharing network of triangles. We show that the band structures of the nearest-neighbor tight-binding model exhibit many characteristic features, including a flat band which is ubiquitous among frustrated lattices. On the flat band, we elucidate its origin by using the molecular-orbital representation and also find localized exact eigenstates called compact localized states. In addition to the flat band, we also find two spin-1 Dirac cones with different energies. These spin-1 Dirac cones are not described by the simplest effective Dirac Hamiltonian because the middle band is bended and the energy spectrum is particle-hole asymmetric. We also investigated the Hofstadter problem on a square kagome lattice in the presence of an external field and find that the profile of the Chern numbers around the modified spin-1 Dirac cones coincides with the conventional one.
description: 9 pages, 7 figures
Periodically-driven quantum thermal machines from warming up to limit cycle
Creators: name: Liu, Junjie
name: Jung, Kenneth A.
name: Segal, Dvira
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Theoretical treatments of periodically-driven quantum thermal machines (PD-QTMs) are largely focused on the limit-cycle stage of operation characterized by a periodic state of the system. Yet, this regime is not immediately accessible for experimental verification. Here, we present a general thermodynamic framework that can handle the performance of PD-QTMs both before and during the limit-cycle stage of operation. It is achieved by observing that periodicity may break down at the ensemble average level, even in the limit-cycle phase. With this observation, and using conventional thermodynamic expressions for work and heat, we find that a complete description of the first law of thermodynamics for PD-QTMs requires a new contribution, which vanishes only in the limit-cycle phase under rather weak system-bath couplings. Significantly, this contribution is substantial at strong couplings even at limit cycle, thus largely affecting the behavior of the thermodynamic efficiency. We demonstrate our framework by simulating a quantum Otto engine building upon a driven resonant level model. Our results provide new insights towards a complete description of PD-QTMs, from turn-on to the limit-cycle stage and, particularly, shed light on the development of quantum thermodynamics at strong coupling.
description: submitted. Comments and suggestions are highly welcome
Estimated survival functions from Causes of delayed outbreak responses and their impacts on epidemic spread
Creators: name: Tao, Yun
name: Probert, William J. M.
name: Shea, Katriona
name: Runge, Michael C.
name: Lafferty, Kevin
name: Tildesley, Michael
name: Ferrari, Matthew
Publisher: name: The Royal Society
Year: 2021
Subjects: Computational Biology

description: Estimated survival functions from three-factors Cox proportional hazards regression models for infected premises (IPs). (a-b) compare IPs that are substantial in size (containing more than 500 livestock) with those limited to fewer animals (a-b); (c-d) compare IPs receiving intervention during low (ten concurrent cases or fewer) versus high levels of control demands (c-d). In every analysis, the two other candidate covariates are fixed at their average values. Each estimate is attended by a point-wise 95-percent confidence envelope. County membership is reassigned as a fixed effect to permit estimations of survival curves.
The effect of events between waves on panel attrition
Creators: name: Trappmann, Mark
name: Gramlich, Tobias
name: Mosthaf, Alexander
Publisher: name: European Survey Research Association
Year: 2015
Subjects: panel survey; attrition; nonresponse; weighting

description: Panel surveys suffer from attrition. Most panel studies use propensity models or weighting class approaches to correct for non-random dropout. These models draw on variables measured in a previous wave or from paradata of the study. While it is plausible that they affect contactability and cooperativeness, panel studies usually cannot assess the impact of events between waves on attrition. The amount of change in the population could be seriously underestimated if such events had an effect on participation in subsequent waves. The panel study PASS is a novel dataset for labour market and poverty research. In PASS, survey data on (un)employment histories, income and education of participants are linked to corresponding data from respondents' administrative records. Thus, change can be observed for attritors as well as for continued participants. These data are used to show that change in household composition, employment status or receipt of benefits has an influence on contact and cooperation rates in the following wave. A large part of the effect is due to lower contactability of households who moved. Nevertheless, this effect can lead to biased estimates for the amount of change. After applying the survey’s longitudinal weights this bias is reduced, but not entirely eliminated.
description: Survey Research Methods, Vol 9, No 1 (2015)
Smooth backfitting in generalized additive models
Creators: name: Yu, Kyusang
name: Park, Byeong U.
name: Mammen, Enno
Publisher: name: arXiv
Year: 2008
Subjects: subject: Statistics Theory (math.ST)
subject: FOS: Mathematics
subject: 62G07 (Primary) 62G20 (Secondary)

description: Generalized additive models have been popular among statisticians and data analysts in multivariate nonparametric regression with non-Gaussian responses including binary and count data. In this paper, a new likelihood approach for fitting generalized additive models is proposed. It aims to maximize a smoothed likelihood. The additive functions are estimated by solving a system of nonlinear integral equations. An iterative algorithm based on smooth backfitting is developed from the Newton--Kantorovich theorem. Asymptotic properties of the estimator and convergence of the algorithm are discussed. It is shown that our proposal based on local linear fit achieves the same bias and variance as the oracle estimator that uses knowledge of the other components. Numerical comparison with the recently proposed two-stage estimator [Ann. Statist. 32 (2004) 2412--2443] is also made.
description: Published in at http://dx.doi.org/10.1214/009053607000000596 the Annals of Statistics (http://www.imstat.org/aos/) by the Institute of Mathematical Statistics (http://www.imstat.org)
Elicitation of fricatives and affricates
Creators: name: Parker, Verdena
name: Campbell, Amy
name: Escamilla, Ramón
name: Newbold, Lindsey
name: Spence, Justin
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2021
Subjects: subject: hup

description: Audio file VP-111107-05: Elicitation focused on the phonology of fricative and affricate sounds, based on examples from the texts in Sapir and Golla (2001).
High-dielectric constant and wide band gap inverse silver oxide phases of the ordered ternary alloys of SiO$_{2}$, GeO$_{2}$ and SnO$_{2}$
Creators: name: Sevik, C.
name: Bulutay, C.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: High-dielectric constant and wide band gap oxides have important technological applications. The crystalline oxide polymorphs having lattice constant compatibility to silicon are particularly desirable. One recently reported candidate is the inverse silver oxide phase of SiO$_2$. First-principles study of this system together with its isovalent equivalents GeO$_{2}$, SnO$_{2}$ as well as their ternary alloys are performed. Within the framework of density functional theory both generalized gradient approximation and local density approximation (LDA) are employed to obtain their structural properties, elastic constants and the electronic band structures. To check the stability of these materials, phonon dispersion curves are computed which indicate that GeO$_{2}$ and SnO$_{2}$ have negative phonon branches whereas their ternary alloys Si$_{0.5}$Ge$_{0.5}$O$_{2}$, Si$_{0.5}$Sn$_{0.5}$O$_{2}$, and Ge$_{0.5}$Sn$_{0.5}$O$_{2}$ are all stable within LDA possessing dielectric constants ranging between 10 to 20. Furthermore, the lattice constant of Si$_{0.5}$Ge$_{0.5}$O$_{2}$ is virtually identical to the Si(100) surface. The $GW$ band gaps of the stable materials are computed which restore the wide band gap values in addition to their high dielectric constants.
description: Published version; two figures merged into one
Dependent Interviewing and Sub-Optimal Responding
Creators: name: Eggs, Johannes
name: Jäckle, Annette
Publisher: name: European Survey Research Association
Year: 2015
Subjects: measurement error; validation; record linkage; panel survey; welfare benefit; satisficing

description: With proactive dependent interviewing (PDI) respondents are reminded of the answer they gave in the previous interview, before being asked about their current status. PDI is used in panel surveys to assist respondent recall and reduce spurious changes in responses over time. PDI may however provide scope for new errors if respondents falsely accept the previous information as still being an accurate description of their current situation. In this paper we use data from the German Labour Market and Social Security panel study, in which an error was made with the preload data for a PDI question about receipt of welfare benefit. The survey data were linked to individual administrative records on receipt of welfare benefit. A large proportion of respondents accepted the false preload. This behaviour seems mainly driven by the difficulty of the response task: respondents with a more complex history of receipt according to the records were more likely to confirm the false preload. Personality also seemed related to the probability of confirming. Predictors of satisficing, indicators of satisficing on other items in the survey, and characteristics of the survey and interviewer were not predictive of confirming the false preload.
description: Survey Research Methods, Vol 9, No 1 (2015)
AGN Outflows and the Matter Power Spectrum
Creators: name: Levine, Robyn
name: Gnedin, Nickolay Y.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We have investigated the effects of AGN outflows on the amplitude of the matter power spectrum in a simple model of spherically symmetric outflows around realistically clustered AGN population. We find that two competing effects influence the matter power spectrum in two opposite directions. First, AGN outflows move baryons from high to low density regions, decreasing the amplitude of the matter power spectrum by up to 20%. Second, high clustering of the AGN transfers the power from small to larger scales. The exact balance between these two effects depends on the details of outflows on small scales, and quantitative estimates will require much more sophisticated modeling than presented here.
description: submitted to ApJL
Research Methods of Assessing Global Value Chains
Creators: name: Dutta, Sourish
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Economics (econ.GN)
subject: FOS: Economics and business

description: The global production (as a system of creating values) is eventually forming a vast web of value chains that explains the transitional structures of global trade and development of the world economy. It is truly a new wave of globalisation, and we can term it as the global value chains (GVCs), creating the nexus among firms, workers and consumers around the globe. The emergence of this new scenario is asking how an economy's businesses, producers and employees are connecting to the global economy and capturing the gains out of it regarding different dimensions of economic development. Indeed, this GVC approach is very crucial for understanding the organisation of the global industries (including firms) through analysing the statics and dynamics of different economic players involved in this complex global production network. Its widespread notion deals with various global issues (including regional value chains also) from the top down to the bottom up, founding a scope for policy analysis.
description: 15 pages
A feasibility test of using smartphones to collect GPS information in face-to-face surveys
Creators: name: Olson, Kristen
name: Wagner, James
Publisher: name: European Survey Research Association
Year: 2015
Subjects: interviewers; GPS; mobile devices; face to face surveys

description: Survey organizations rely on interviewers to make informed and efficient decisions about their efforts in the field, including which housing units they approach to knock on doors, make appointments, and obtain interviews. This paper presents initial findings from a feasibility test on a face to face survey, the US National Survey of Family Growth, in which the interviewers were equipped with GPS-enabled smartphones. This test included an experiment to determine if the use of the GPS-enabled smartphone altered interviewer behavior. We evaluate interviewer compliance with the GPS request, the effects of using the GPS device on interviewer behavior, and the quality of the recorded GPS points as related to interviewer behaviors. This test also included two surveys of interviewers that were completed after using the smartphone. We report results from these surveys and link one set of survey results to interviewer GPS compliance rates. Implications for future use of GPS devices to monitor and understand interviewer travel behavior are discussed.
description: Survey Research Methods, Vol 9, No 1 (2015)
Bibliotheksentwicklung: Vom Wie zum Wohin
Creators: name: Bleyl, Henning
Publisher: name: Humboldt-Universität zu Berlin
Year: 2019
Subjects: subject: Öffentliche Bibliothek
subject: Demokratisierung
subject: Digitalisierung
subject: Öffnungszeit
subject: Open Library
subject: Bibliothekspersonal
subject: 020 Bibliotheks- und Informationswissenschaften

description: Wenn Wissen allgegenwärtig wird, muss sich auch die Institution Bibliothek neu erfinden. Um dabei nicht in eine Identitätskrise zu geraten, braucht sie zwei sehr verschiedene Dinge: Balance und Radikalität. Ersteres in Bezug auf alte und neue Aufgaben, zweiteres in Hinblick auf ihre weitere Demokratisierung. Der Text untersucht, in längerer historischer Perspektive, welchen Identitätswandel Bibliotheken durchleben. Der verbreiteten Vorstellung, die Digitalisierung erzwinge eine Anpassung des bibliothekarischen Selbstverständnisses, setzt der Text eine andere Sichtweise entgegen: In dieser erscheint der digitale Umbruch lediglich als – wenn auch äußerst rasante – Beschleunigung einer Entwicklungslogik, deren zentrale Kategorie die Demokratisierung von Wissen ist. Deutlich wird: Die Sammlung von Wissen ist nicht nur mit Erkenntnis-, sondern auch mit Machtinteressen verbunden – die sich auf einer politischen Bewertungsskala zwischen demo- und autokratisch beinahe beliebig orientieren können.
Transcription of "Panther and Bobcat"
Creators: name: Parker, Verdena
name: Campbell, Amy
name: Escamilla, Ramón
name: Newbold, Lindsey
name: Spence, Justin
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2021
Subjects: subject: hup

description: Audio file VP-111107-06: Transcription of the story of Panther and Bobcat (file VP-200107-01), up to 4:00.
An analytic solution for evaluating the magnetic field induced from an arbitrary, asymmetric ocean world
Creators: name: Styczinski, Marshall J.
name: Vance, Steven D.
name: Harnett, Erika M.
name: Cochrane, Corey J.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: Magnetic investigations of icy moons have provided some of the most compelling evidence available confirming the presence of subsurface, liquid water oceans. In the exploration of ocean moons, especially Europa, there is a need for mathematical models capable of predicting the magnetic fields induced under a variety of conditions, including in the case of asymmetric oceans. Existing models are limited to either spherical symmetry or assume an ocean with infinite conductivity. In this work, we derive an analytic result capable of determining the induced magnetic moments for an arbitrary, layered body. Crucially, we find that degree-2 tidal deformation results in changes to the induced dipole moments. We demonstrate application of our results to models of plausible asymmetry from the literature within the oceans of Europa and Miranda and the ionospheres of Callisto and Triton. For the models we consider, we find that in the asymmetric case, the induced magnetic field differs by more than 2 nT near the surface of Europa, 0.25$-$0.5 nT at 1 $R$ above Miranda and Triton, and is essentially unchanged for Callisto. For Miranda and Triton, this difference is as much as 20$-$30% of the induced field magnitude. If measurements near the moons can be made precisely to better than a few tenths of a nT, these values may be used by future spacecraft investigations to characterize asymmetry within the interior of icy moons.
description: Submitted to Icarus. Supplemental Material available at: https://zenodo.org/record/5002956 (software), https://zenodo.org/record/5004369 (animations)
Algebraic approach to the Hulthen potential
Creators: name: Setare, Mohammad R.
name: Karimi, Ebrahim
Publisher: name: arXiv
Year: 2007
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: In this paper the energy eigenvalues and the corresponding eigenfunctions are calculated for Hulthen potential. Then we obtain the ladder operators and show that these operators satisfy SU(2) commutation relation.
description: 8 Pages, 1 Table
The raven kernel: a microkernel for shared memory multiprocessors
Creators: name: Ritchie, Duncan S.
Publisher: name: University of British Columbia
Year: 2008

description: The Raven kernel is a small, lightweight operating system for shared memory multiprocessors. Raven is characterized by its movement of several traditional kernel abstractions into user space. The kernel itself implements tasks, virtual memory management, and low level excep-tion dispatching. All thread management, device drivers, and message passing functions are implemented completely in user space. This movement of typical kernel-level abstractions into user space can drastically reduce the overall number of user/kernel interactions for fine-grained parallel applications.
Feminism and Entrepreneurship: The Economic Impact of Covid-19 on Women Entrepreneurs in Nigeria and South Africa
Creators: name: Ezeokoli Rita Nkiruka
name: Tanusha Raniga
Publisher: name: Zenodo
Year: 2024
Subjects: Economic Impact, COVID-19, Lockdown, Women Entrepreneurs, South Africa, Nigeria.

description: Abstract

Feminism and entrepreneurship are topical areas of concern in Africa based on the level of economic development of its member states. The quest of feminism is the strive for gender equality, inclusion and access to opportunities in areas of finance, empowerment and entrepreneurship for economic development. The case of Nigeria and South Africa, however, shows that women entrepreneurs have not received massive support in their various establishments, despite the fact that women are considered as major actors in the development of these two countries. Furthermore, the effort of women in entrepreneurship was affected by the incidence of the COVID-19 pandemic, and this impacted on the family as well as their business performance and survival. The study sought to understand the economic impact of COVID-19 on women entrepreneurs. It also assessed whether or not there was institutional support for women owned businesses during the pandemic. Likewise, the study considered the use of online platform as part of the adaptive strategies for women entrepreneurs during COVID-19 era.  Descriptive research design was engaged, which uses in-depth interview guide in sourcing for useful information. Purposive sampling technique was engaged for the study. Data collected were analysed using content analysis. The study concluded that the impact of the pandemic was heavy on women entrepreneurs in terms of their family sustenance, business survival; and a number of women businesses were discontinued because they could not adapt their business to the experience of the pandemic, and also because they lacked business and financial support from the government, both in Nigeria and South Africa.
Statistically Unbiased Free Energy Estimates from Biased Simulations
Creators: name: Carli, Matteo
name: Laio, Alessandro
Publisher: name: arXiv
Year: 2021
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: Soft Condensed Matter (cond-mat.soft)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: Estimating the free energy in molecular simulation requires, implicitly or explicitly, counting how many times the system is observed in a finite region. If the simulation is biased by an external potential, the weight of the configurations within the region can vary significantly, and this can make the estimate numerically unstable. We introduce an approach to estimate the free energy as a simultaneous function of several collective variables starting from data generated in a statically-biased simulation. The approach exploits the property of a free energy estimator recently introduced by us which provides by construction the estimate in a region of infinitely small size. We show that this property allows removing the effect of the external bias in a simple and rigorous manner. The approach is validated on model systems for which the free energy is known analytically and on a small peptide for which the ground truth free energy is estimated in an independent unbiased run. In both cases the free energy obtained with our approach is an unbiased estimator of the ground-truth free energy, with an error whose magnitude is also predicted by the model.