cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Trajectory and distribution of suspended non-Brownian particles moving past a fixed spherical or cylindrical obstacle
Creators: name: Risbud, Sumedh R.
name: Drazer, German
Publisher: name: arXiv
Year: 2014
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We investigate the motion of a suspended non-Brownian sphere past a fixed cylindrical or spherical obstacle in the limit of zero Reynolds number for arbitrary particle-obstacle aspect ratios. We consider both a suspended sphere moving in a quiescent fluid under the action of a uniform force as well as a uniform ambient velocity field driving a freely suspended particle. We determine the distribution of particles around a single obstacle and solve for the individual particle trajectories to comment on the transport of dilute suspensions past an array of fixed obstacles. First, we obtain an expression for the probability density function governing the distribution of a dilute suspension of particles around an isolated obstacle, and we show that it is isotropic. We then present an analytical expression -- derived using both Eulerian and Lagrangian approaches -- for the minimum particle-obstacle separation attained during the motion, as a function of the incoming impact parameter, i.e. the initial offset between the line of motion far from the obstacle and the coordinate axis parallel to the driving field. Further, we derive the asymptotic behaviour for small initial offsets and show that the minimum separation decays exponentially. Finally we use this analytical expression to define an effective hydrodynamic surface roughness based on the net lateral displacement experienced by a suspended sphere moving past an obstacle.
Platforms' content moderation & accountability: Evaluating the present and looking into the future (MS12 - Workshop Report)
Creators: name: Dergacheva, Daria
name: Katzenbach, Christian
name: Schwemer, Sebastian Felix
Publisher: name: Zenodo
Year: 2023
Subjects: content moderation
intermediaries
workshop
copyright law

description: On 8 December 2022, ReCreating Europe carried out an online workshop on the topic of “Platforms’ content moderation and accountability: evaluating the present and looking into the future”. This workshop provided an opportunity to discuss research collaboration in the field of copyright content moderation. This Report describes the findings of this event.
Classical and quantum shortcuts to adiabaticity for scale-invariant driving
Creators: name: Deffner, Sebastian
name: Jarzynski, Christopher
name: del Campo, Adolfo
Publisher: name: arXiv
Year: 2014
Subjects: subject: Quantum Physics (quant-ph)
subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: A shortcut to adiabaticity is a driving protocol that reproduces in a short time the same final state that would result from an adiabatic, infinitely slow process. A powerful technique to engineer such shortcuts relies on the use of auxiliary counterdiabatic fields. Determining the explicit form of the required fields has generally proven to be complicated. We present explicit counterdiabatic driving protocols for scale-invariant dynamical processes, which describe for instance expansion and transport. To this end, we use the formalism of generating functions, and unify previous approaches independently developed in classical and quantum studies. The resulting framework is applied to the design of shortcuts to adiabaticity for a large class of classical and quantum, single-particle, non-linear, and many-body systems.
description: 17 pages, 5 figures
Probing individual split Cooper-pairs using the spin qubit toolkit
Creators: name: Scherübl, Zoltán
name: Pályi, András
name: Csonka, Szabolcs
Publisher: name: arXiv
Year: 2014
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: A superconductor is a natural source of spin-entangled spatially separated electron pairs. Although the first Cooper-pair splitter devices have been realized recently, an experimental confirmation of the spin state and the entanglement of the emitted electron pairs is lacking up to now. In this paper a method is proposed to confirm the spin-singlet character of individual split Cooper pairs. Two quantum dots (QDs), each of them holding one spin-prepared electron, serve as the detector of the spin state of a single Cooper pair that is forced to split when it tunnels out from the superconductor to the QDs. The number of charges on the QDs, measured at the end of the procedure, carries information on the spin state of the extracted Cooper pair. The method relies on the experimentally established toolkit of QD-based spin qubits: resonant spin manipulation, Pauli blockade, and charge measurement.
description: 15 pages, 7 figures
Physical characteristics and cation distribution of NiFe2O4 thin films with high resistivity prepared by reactive co-sputtering
Creators: name: Klewe, Christoph
name: Meinert, Markus
name: Boehnke, Alexander
name: Kuepper, Karsten
name: Arenholz, Elke
name: Gupta, Arunava
name: Schmalhorst, Jan-Michael
name: Kuschel, Timo
name: Reiss, Guenter
Publisher: name: arXiv
Year: 2013
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We fabricated NiFe2O thin films on MgAl2O4 (001) substrates by reactive dc magnetron co-sputtering in a pure oxygen atmosphere at different substrate temperatures. The film properties were investigated by various techniques with a focus on their structure, surface topography, magnetic characteristics, and transport properties. Structural analysis revealed a good crystallization with epitaxial growth and low roughness and a similar quality as in films grown by pulsed laser deposition. Electrical conductivity measurements showed high room temperature resistivity (12 Ohmm), but low activation energy, indicating an extrinsic transport mechanism. A band gap of about 1.55 eV was found by optical spectroscopy. Detailed x-ray spectroscopy studies confirmed the samples to be ferrimagnetic with fully compensated Fe moments. By comparison with multiplet calculations of the spectra we found that the cation valencies are to a large extent Ni2+ and Fe3+.
description: 8 pages, 8 figures
title: The cultural consequences for European collaborative arrangements in telecommunications
Creators: name: Hexter, Jeanette
Publisher: name: University of Kent
Year: 2022

description: This work investigates the cultural consequences on international collaborative arrangements (ICAs) within the European telecommunications industry. We analyse which cultural variables influence 1CA success and which entry mode and management strategies should be utilised to increase their positive effects on the collaboration. We use Germany as investigative point of origin. Furthermore, we look at culture in Europe in general and at specific cultural variables that have been previously overlooked. We find that culture within Europe is heterogeneous with a clear North-South divide and that the success of ICAs is influenced by the management of these differences. We achieve these results through a mixture of qualitative and quantitative research methods for model building, testing and triangulation. We test the hypotheses that language and national pride are strong determinants of cultural differences within European. They influence the effectiveness of international and internal management strategies within ICAs. Our results further support the hypothesis that national and corporate cultures are important issues to be considered for ICA entry mode choice as well as management strategies. We also show that national cultural consequences vary with different departmental internal or external focus, technology content and local terminology. We further find that international employees need to show capabilities on a general as well as an international dimension. We show how to assess an ICA opportunity, choose an appropriate entry mode strategy and adapt internal management strategies on the corporate, departmental and individual level to suit the local national culture and increase future success potential. Our study allows a closer look at ICAs and the cultural consequences they face. We show that cultural differences need to be considered for company strategy, even if their relevance appears minor, as they affect an ICA’s success potential. We make recommendations towards suitable management and entry mode strategies for successful ICAs. This study contributes towards the academic literature, business knowledge and practices as well as policy making.
title: Solid State Synthesis of Boracites
Creators: name: Barkley, Alice
name: Csetenyi, Laszlo
name: Josse, Michaël
name: Cochard, Charlotte
Publisher: name: University of Dundee
Year: 2023
Subjects: classificationCode: 1.3
subject: FOS: Physical sciences

description: Crystals from the boracite family, M3B7O13X, have regained interest in the last 5 years owing to their interesting properties at the domain walls [1,2]. Indeed, charged domain walls form spontaneously on cooling through the phase transition. To develop a better understanding of the origin of the change in conduction at the domain walls and the apparent negative capacitance, we intend to study other boracite materials of properties similar to Cu-Cl, namely Mg-Cl and Cr-Cl boracite.

Due to the high-volatility of chlorine, boracite is not usually the stable phase when considering simple solid-state synthesis. We show that by tailoring the calcination conditions thoroughly the pure boracite phase can be obtained. In particular, the effect of temperature, pressure and calcination atmosphere on the synthesis yield are reported.
Non-singular assembly mode changing trajectories in the workspace for the 3-RPS parallel robot
Creators: name: Chablat, Damien
name: Jha, Ranjan
name: Rouillier, Fabrice
name: Moroz, Guillaume
Publisher: name: arXiv
Year: 2014
Subjects: subject: Robotics (cs.RO)
subject: FOS: Computer and information sciences

description: Having non-singular assembly modes changing trajectories for the 3-RPS parallel robot is a well-known feature. The only known solution for defining such trajectory is to encircle a cusp point in the joint space. In this paper, the aspects and the characteristic surfaces are computed for each operation mode to define the uniqueness of the domains. Thus, we can easily see in the workspace that at least three assembly modes can be reached for each operation mode. To validate this property, the mathematical analysis of the determinant of the Jacobian is done. The image of these trajectories in the joint space is depicted with the curves associated with the cusp points.
Вибір операційної системи для створення інформаційних ресурсів
Creators: name: Tkachov, Yurii
Publisher: name: figshare
Year: 2023
Subjects: Information systems education

description: Debian — це дійсно універсальна ОС, безкоштовна, невибаглива до апаратних ресурсів, дозволяє розв’язувати безліч задач для бізнесу та дому, не потребує значних витрат на апаратне забезпечення, характеризується високою продуктивністю на слабких та старих системах, легко адаптується для освоєння в освітньому процесі. За реальних умов під час розв’язання бізнес-задач, рішення, основані на цій ОС, будуть характеризуватись високою економічною ефективністю.
The flush statistic on semistandard Young tableaux
Creators: name: Salisbury, Ben
Publisher: name: arXiv
Year: 2014
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: Primary 05E10, Secondary 17B37

description: In this note, a statistic on Young tableaux is defined which encodes data needed for the Casselman-Shalika formula.
description: 6 pages
Untitled ItemВибір операційної системи для створення інформаційних ресурсів
Creators: name: Tkachov, Yurii
Publisher: name: figshare
Year: 2023
Subjects: Information systems education

description: Debian — це дійсно універсальна ОС, безкоштовна, невибаглива до апаратних ресурсів, дозволяє розв’язувати безліч задач для бізнесу та дому, не потребує значних витрат на апаратне забезпечення, характеризується високою продуктивністю на слабких та старих системах, легко адаптується для освоєння в освітньому процесі. За реальних умов під час розв’язання бізнес-задач, рішення, основані на цій ОС, будуть характеризуватись високою економічною ефективністю.
title: Incorporating ‘Company Reputation’ into Total Enterprise Simulations
Creators: name: Cannon, Hugh M.
name: Schwaiger, Manfred
Publisher: name: Universitätsbibliothek der Ludwig-Maximilians-Universität München
Year: 2003

description: The literature on simulation and gaming has done very little to address emerging concepts such as relationship marketing, brand equity, and company reputation. This paper relates these to each other, linking them to a new business paradigm, in which companies seek to harness the long-term value of reputation and relationships to lower transaction costs with key stakeholders. It then presents a model for incorporating the concept of company reputation into a total enterprise simulation. It builds on an empirically derived model of company reputation in which various company characteristics are linked to two underlying dimensions of reputation: sympathy and competence. The paper suggests how the various components of company reputation might be operationalized in a simulation game. It then discusses how they might be used to both help determine and evaluate student performance.
Causal Attributions and Smoking Behaviors in Cervical Cancer Survivors: A Mixed-Methods Pilot Study
Creators: name: Puleo, Gabriella E.
Publisher: name: University of Kentucky Libraries
Year: 2018

description: Abstract:
This cross-sectional, mixed-methods study examined the nature of, and association between, causal attributions and current smoking behavior in cervical cancer survivors who were smokers at cancer diagnosis (n=50). As a whole, participants’ beliefs about smoking as a risk factor or cause of cervical cancer in general (i.e., global attribution) and/or their own cervical cancer (i.e., personal attribution) reflected far greater endorsement of global than personal attributions. Data collection involved a quantitative survey and an optional semi-structured interview to assess key variables (i.e., smoking behavior and causal attributions). Data were analyzed via descriptive statistics and inferential tests, all of which illustrated greater endorsement of global smoking-related causal attributions versus personal attributions within the sample. In conclusion, the results of this formative study highlights the potential role of causal attributions in understanding the smoking behavior of cervical cancer survivors, the results of which aids understanding of how cancer survivors think about, and make changes in, their smoking behavior.
Copyright: © Gabriella E. Puleo 2018
Funding information: K07 CA181351 (Jessica Burris)
Supplementary Text and Figures from Inferring kinetic parameters of oscillatory gene regulation from single cell time-series data
Creators: name: Burton, Joshua
name: Manning, Cerys S.
name: Rattray, Magnus
name: Papalopulu, Nancy
name: Kursawe, Jochen
Publisher: name: The Royal Society
Year: 2022
Subjects: subject: Biophysics
subject: 60114 Systems Biology
subject: FOS: Biological sciences
subject: Computational Biology

description: A pdf file containing all supplementary methods and seven supplementary Figures.
The dust content of QSO hosts at high redshift
Creators: name: Calura, F.
name: Gilli, R.
name: Vignali, C.
name: Pozzi, F.
name: Pipino, A.
name: Matteucci, F.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Infrared observations of high-z quasar (QSO) hosts indicate the presence of large masses of dust in the early universe. When combined with other observables, such as neutral gas masses and star formation rates, the dust content of z~6 QSO hosts may help constraining their star formation history. We have collected a database of 58 sources from the literature discovered by various surveys and observed in the FIR. We have interpreted the available data by means of chemical evolution models for forming proto-spheroids, investigating the role of the major parameters regulating star formation and dust production. For a few systems, given the derived small dynamical masses, the observed dust content can be explained only assuming a top-heavy initial mass function, an enhanced star formation efficiency and an increased rate of dust accretion. However, the possibility that, for some systems, the dynamical mass has been underestimated cannot be excluded. If this were the case, the dust mass can be accounted for by standard model assumptions. We provide predictions regarding the abundance of the descendants of QSO hosts; albeit rare, such systems should be present and detectable by future deep surveys such as Euclid already at z>4.
description: 22 pages, 8 figures, MNRAS, accepted
Supplementary Information from Inferring kinetic parameters of oscillatory gene regulation from single cell time-series data
Creators: name: Burton, Joshua
name: Manning, Cerys S.
name: Rattray, Magnus
name: Papalopulu, Nancy
name: Kursawe, Jochen
Publisher: name: The Royal Society
Year: 2022
Subjects: subject: Biophysics
subject: 60114 Systems Biology
subject: FOS: Biological sciences
subject: Computational Biology

description: Gene expression dynamics, such as stochastic oscillations and aperiodic fluctuations, have been associated with cell fate changes in multiple contexts, including development and cancer. Single cell live imaging of protein expression with endogenous reporters is widely used to observe such gene expression dynamics. However, the experimental investigation of regulatory mechanisms underlying the observed dynamics is challenging, since these mechanisms include complex interactions of multiple processes, including transcription, translation and protein degradation. Here, we present a Bayesian method to infer kinetic parameters of oscillatory gene expression regulation using an auto-negative feedback motif with delay. Specifically, we use a delay-adapted nonlinear Kalman filter within a Metropolis-adjusted Langevin algorithm to identify posterior probability distributions. Our method can be applied to time-series data on gene expression from single cells and is able to infer multiple parameters simultaneously. We apply it to published data on murine neural progenitor cells and show that it outperforms alternative methods. We further analyse how parameter uncertainty depends on the duration and time resolution of an imaging experiment, to make experimental design recommendations. This work demonstrates the utility of parameter inference on time course data from single cells and enables new studies on cell fate changes and population heterogeneity.
Demkov-Kunike model in cold molecule formation
Creators: name: Ishkhanyan, A.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: We study the dynamics of cold molecule formation via photo- or magneto-association of quantum degenerate atomic gases for the case when the field configuration is defined by the quasi-linear level crossing Demkov-Kunike model, which is characterized by a bell-shaped pulse and finite variation of the frequency detuning. We generalize the approach developed for the Landau-Zener model and propose a cubic polynomial equation for the asymptotic transition probability at infinity applicable in the large detuning regime of the interaction process. The proposed approximation applies to all values of the Rabi frequency; hence, it presents a unified description of previously noticed weak, moderate, and strong interaction limits of the fast sweep regime. This cubic equation for the transition probability provides improvement of previous results by an order of the magnitude.
A Model for Multi-property Galaxy Cluster Statistics
Creators: name: Evrard, August E.
name: Arnault, Pablo
name: Huterer, Dragan
name: Farahi, Arya
Publisher: name: arXiv
Year: 2014
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: The massive dark matter halos that host groups and clusters of galaxies have observable properties that appear to be log-normally distributed about power-law mean scaling relations in halo mass. Coupling this assumption with either quadratic or cubic approximations to the mass function in log space, we derive closed-form expressions for the space density of halos as a function of multiple observables as well as forms for the low-order moments of properties of observable-selected samples. Using a Tinker mass function in a ΛCDM cosmology, we show that the cubic analytic model reproduces results obtained from direct, numerical convolution at the 10 percent level or better over nearly the full range of observables covered by current observations and for redshifts extending to z = 1.5. The model provides an efficient framework for estimating effects arising from selection and covariance among observable properties in survey samples.
description: 9 pages, 4 figures, uses on-line mass function calculator http://hmf.icrar.org/. Submitted to MNRAS
title: Η ψυχολογική επιρροή του συνδυασμού δομής και φύσης

title: The psychological effect of the combination of structure and nature
Creators: name: Μενζιλτζογλου Βασιλειος
Publisher: name: Technical University of Crete
Year: 2023

description: Σκοπός της εργασίας είναι η έρευνα ως προς τις χωρικές, ποιοτικές και αισθητικές σχεδιαστικές παραμέτρους που επηρεάζουν και κατ’ επέκταση βοηθούν στην αποκατάσταση της ψυχικής ισορροπίας του ατόμου, μέσω διερεύνησης υφιστάμενων έργων και τεχνοτροπιών ανά τον κόσμο. Μέσω της έρευνας αυτής, θα γίνει η απόπειρα καθορισμού των βασικών σχεδιαστικών αρχών που βοηθούν στη διαδικασία ψυχικής αποκατάστασης του ατόμου, καθώς και η προσπάθεια αναγωγής τους στα μεσογειακά δεδομένα, ώστε να μελετηθεί η τυχόν εφαρμογή και απήχηση μίας έμπρακτης εφαρμογής αυτών στην Ελλάδα.
Anisotropic Hydrodynamics: Motivation and Methodology
Creators: name: Strickland, Michael
Publisher: name: arXiv
Year: 2014
Subjects: subject: Nuclear Theory (nucl-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In this proceedings contribution I review recent progress in our understanding of the bulk dynamics of relativistic systems that possess potentially large local rest frame momentum-space anisotropies. In order to deal with these momentum-space anisotropies, a reorganization of relativistic viscous hydrodynamics can been made around an anisotropic background, and the resulting dynamical framework has been dubbed "anisotropic hydrodynamics." I also discuss expectations for the degree of momentum-space anisotropy of the quark gluon plasma generated in relativistic heavy ion collisions at RHIC and LHC from second-order viscous hydrodynamics, strong-coupling approaches, and weak-coupling approaches.
description: 10 pages, 2 figures; Plenary contribution to the International Conference on the Initial Stages of High-Energy Nuclear Collisions 2013 (IS2013)
Interpretable Sparse Proximate Factors for Large Dimensions
Creators: name: Pelger, Markus
name: Xiong, Ruoxuan
Publisher: name: Taylor & Francis
Year: 2021
Subjects: subject: Space Science
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics
subject: Developmental Biology
subject: Science Policy
subject: Hematology

description: This article proposes sparse and easy-to-interpret proximate factors to approximate statistical latent factors. Latent factors in a large-dimensional factor model can be estimated by principal component analysis (PCA), but are usually hard to interpret. We obtain proximate factors that are easier to interpret by shrinking the PCA factor weights and setting them to zero except for the largest absolute ones. We show that proximate factors constructed with only 5%–10% of the data are usually sufficient to almost perfectly replicate the population and PCA factors without actually assuming a sparse structure in the weights or loadings. Using extreme value theory we explain why sparse proximate factors can be substitutes for non-sparse PCA factors. We derive analytical asymptotic bounds for the correlation of appropriately rotated proximate factors with the population factors. These bounds provide guidance on how to construct the proximate factors. In simulations and empirical analyses of financial portfolio and macroeconomic data, we illustrate that sparse proximate factors are close substitutes for PCA factors with average correlations of around 97.5%, while being interpretable.
Mentorship Matters: Enhancing Newly Graduated CRNA Onboarding through Implementation of Formal Mentor Training
Creators: name: Eshleman, Stephanie
name: Rodriguez, Ashley
Publisher: name: Oregon Health and Science University
Year: 2024
Subjects: subject: mentoring
subject: Oregon
subject: Mentor training

description: Newly graduated Certified Registered Nurse Anesthetists (CRNAs) encounter significant challenges without formal mentor support and guidance. While mentoring is crucial for professional development, mentors often struggle to provide effective support without formal training. This presentation explores the impact of mentor training modules on enhancing mentor confidence.
Horizon thermodynamics and spacetime mappings
Creators: name: Faraoni, Valerio
name: Vitagliano, Vincenzo
Publisher: name: arXiv
Year: 2014
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: When black holes are dynamical, event horizons are replaced by apparent and trapping horizons. Conformal and Kerr-Schild transformations are widely used in relation with dynamical black holes and we study the behaviour under such transformations of quantities related to the thermodynamics of these horizons, such as the Misner-Sharp-Hernandez mass (internal energy), the Kodama vector, surface gravity, and temperature. The transformation properties are not those expected on the basis of naive arguments.
description: 12 pages
The discrete Lamb problem: Elastic lattice waves in a block medium
Creators: name: Aleksandrova, Nadezhda
Publisher: name: arXiv
Year: 2014
Subjects: subject: Classical Physics (physics.class-ph)
subject: Analysis of PDEs (math.AP)
subject: FOS: Physical sciences
subject: FOS: Mathematics
subject: 74J15 (Primary) 74H10, 74H40 (Secondary)

description: We study the propagation of transient waves under the action of a vertical step point load on the surface of a half-space filled by a block medium. The block medium is modeled by a square lattice of masses connected by springs in the directions of the axes x, y, and in the diagonal directions. The problem is solved by two methods. Analytically, we obtain asymptotic solutions in the vicinity of the Rayleigh wave at large time intervals. Numerically, we obtain a solution for any finite time interval. We compare these solutions with each other and with the solution to the Lamb problem for an elastic medium.
description: 23 pages, 14 figures
Magneto-elastic couplings in the distorted diamond-chain compound azurite
Creators: name: Cong, Pham Thanh
name: Wolf, Bernd
name: Manna, Rudra Sekhar
name: Tutsch, Ulrich
name: de Souza, Mariano
name: Brühl, Andreas
name: Lang, Michael
Publisher: name: arXiv
Year: 2014
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We present results of ultrasonic measurements on a single crystal of the distorted diamond-chain compound azurite Cu$_3$(CO$_3$)$_2$(OH)$_2$. Pronounced elastic anomalies are observed in the temperature dependence of the longitudinal elastic mode $c_{22}$ which can be assigned to the relevant magnetic interactions in the system and their couplings to the lattice degrees of freedom. From a quantitative analysis of the magnetic contribution to $c_{22}$ the magneto-elastic coupling $G$ = $\partial J_2$/$\partial ε_b$ can be determined, where $J_2$ is the intra-dimer coupling constant and $ε_b$ the strain along the intra-chain $b$ axis. We find an exceptionally large coupling constant of $|G| \sim ($3650 $\pm$ 150) K highlighting an extraordinarily strong sensitivity of $J_2$ against changes of the $b$-axis lattice parameter. These results are complemented by measurements of the hydrostatic pressure dependence of $J_2$ by means of thermal expansion and magnetic susceptibility measurements performed both at ambient and finite hydrostatic pressure. We propose that a structural peculiarity of this compound, in which Cu$_2$O$_6$ dimer units are incorporated in an unusually stretched manner, is responsible for the anomalously large magneto-elastic coupling.
description: 9 pages, 6 figures
Bridging design and evaluation: making policy, programmes, and projects work
Creators: name: Rigby, John
Publisher: name: Zenodo
Year: 2023
Subjects: Evaluation
Policy design
Bayesian models

description: Policies, programmes, and projects aim to change the way the world works. They need careful design to have a chance of effecting change, and thorough evaluation to find out not only what the effects were, but whether the design itself was responsible. And central to a design that works and to helpful evaluation is understanding causation.
 The design of interventions and the evaluation should be connected by a common approach to causation. However, for much of the last sixty years, policy and programme design and policy and programme evaluation have been conducted as discrete tasks, attuned to different priorities, carried out by different people, using different techniques, and providing different results, ostensibly for the benefit of the same interests and rarely converging on the issue of causation. It might be said that policy and programme design and policy and programme evaluation are Two Cultures.
 So those engaged in understanding how interventions are designed have often been unaware of consequences of design, while evaluation has sometimes ignored what design aimed to achieve. But there are now signs these two activities are connecting. New methods are emerging that focus upon causation and can make design and evaluation part of a holistic process. This bridge between design and evaluation is being built, but not before time.
 There are a number of reasons why the construction of the bridge has been so slow. Conceptual difficulty is one. Another reason is that to investigate the mechanism / means by which policies and programmes take effect may challenge political ideologies. A further reason is that the separation of the activity of design from the activity of evaluation has been thought to make evaluation objective and independent, conditions important to developing it as a profession.
 This white paper considers the reasons why the two activities have been pursued as separate enterprises. It then looks at why and how connections between them are now being made. The last section of the paper considers the next steps needed to bring these two activities together - what we term design- evaluation bridging - and what the implications are for organisations responsible for interventions.
Bangla Text Recognition from Video Sequence: A New Focus
Creators: name: Bhowmick, Souvik
name: Banerjee, Purnendu
Publisher: name: arXiv
Year: 2014
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: Extraction and recognition of Bangla text from video frame images is challenging due to complex color background, low-resolution etc. In this paper, we propose an algorithm for extraction and recognition of Bangla text form such video frames with complex background. Here, a two-step approach has been proposed. First, the text line is segmented into words using information based on line contours. First order gradient value of the text blocks are used to find the word gap. Next, a local binarization technique is applied on each word and text line is reconstructed using those words. Secondly, this binarized text block is sent to OCR for recognition purpose.
Phonon thermal transport between two in-plane, two-dimensional nanoribbons in the extreme near-field regime
Creators: name: Hasan
Publisher: name: figshare
Year: 2024
Subjects: classificationCode: 401204
subject: Computational methods in fluid flow, heat and mass transfer (incl. computational fluid dynamics)

description: The phonon thermal conductance of subnanometric vacuum gaps between two in-plane nanoribbons of two-dimensional materials (graphene and silicene) is analyzed using the atomistic Green's function method and by employing the Tersoff and Lennard-Jones potentials for describing the interatomic interactions. It is found that the phonon conductance decays exponentially with the size of the gap. Three exponential regimes have been identified. In the regime where the Lennard-Jones (L-J) potential is driven by the repulsive interatomic forces, caused by the overlap of electronic orbits, there is a sharp exponential decay in conductance as the gap increases (𝑒−10.0⁢𝑑 for graphene). When both the repulsive and the attractive (van der Waals) interatomic forces contribute to the L-J potential, the decay rate of the conductance significantly reduces to 𝑒−2.0⁢𝑑 for graphene and 𝑒−2.5⁢𝑑 for silicene. In the regime where attractive van der Waals forces dominate the L-J potential, phonon conductance has the slowest exponential decay as 𝑒−1.3⁢𝑑 for both silicene and graphene. It is also found that the contribution from the optical phonons to the conductance is non-negligible only for very small gaps between graphene nanoribbons (𝑑<1.6Å). The phonon conductance of the gap is shown to vary with the width of the nanoribbon very modestly, such that the thermal conductivity of the gap linearly increases with the nanoribbon widths. The results of this study are of significance for a fundamental understanding of heat transfer in the extreme near-field regime and for predicting the effect of interfaces and defects on heat transfer
Transformed Estimation for Panel Interactive Effects Models
Creators: name: Hsiao, Cheng
name: Shi, Zhentao
name: Zhou, Qiankun
Publisher: name: Taylor & Francis
Year: 2021
Subjects: subject: Biochemistry
subject: Cell Biology
subject: Molecular Biology
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Ecology
subject: FOS: Biological sciences
subject: Immunology
subject: FOS: Clinical medicine
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics
subject: Marine Biology
subject: Cancer
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: We propose a transformed estimator for the slope coefficients of panel models with interactive effects. The transformed estimation method does not require the prior knowledge of the dimension of factor structure. It is consistent and asymptotically normally distributed under fairly general conditions when N is fixed and T→∞ or T is fixed and N→∞, or when both N and T are large and NT→a≠0<∞. Moreover, because the transformation is equivalent to aggregating cross-sectional units or time units before implementing the least-square method over time or across cross-sectional units, it can bypass the issues arising from heteroscedasticity across cross-sectional units or serial correlations over time in the idiosyncratic errors. Furthermore, in the case that the idiosyncratic errors are independent over time, there is no asymptotic bias even the explanatory variables contain lagged dependent variables when NT→a<∞ as T→∞. Extensive Monte Carlo simulations are also conducted to examine the finite sample performance of the transformed estimation method.
Inward and Outward Network Influence Analysis
Creators: name: Wu, Yujia
name: Lan, Wei
name: Zou, Tao
name: Tsai, Chih-Ling
Publisher: name: Taylor & Francis
Year: 2021
Subjects: subject: Space Science
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics
subject: Science Policy

description: Measuring heterogeneous influence across nodes in a network is critical in network analysis. This article proposes an inward and outward network influence (IONI) model to assess nodal heterogeneity. Specifically, we allow for two types of influence parameters; one measures the magnitude of influence that each node exerts on others (outward influence), while we introduce a new parameter to quantify the receptivity of each node to being influenced by others (inward influence). Accordingly, these two types of influence measures naturally classify all nodes into four quadrants (high inward and high outward, low inward and high outward, low inward and low outward, and high inward and low outward). To demonstrate our four-quadrant clustering method in practice, we apply the quasi-maximum likelihood approach to estimate the influence parameters, and we show the asymptotic properties of the resulting estimators. In addition, score tests are proposed to examine the homogeneity of the two types of influence parameters. To improve the accuracy of inferences about nodal influences, we introduce a Bayesian information criterion that selects the optimal influence model. The usefulness of the IONI model and the four-quadrant clustering method is illustrated via simulation studies and an empirical example involving customer segmentation.
A fast and accurate method to compute the mass return from multiple stellar populations
Creators: name: Calura, F.
name: Ciotti, L.
name: Nipoti, C.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: The mass returned to the ambient medium by aging stellar populations over cosmological times sums up to a significant fraction (20% - 30% or more) of their initial mass. This continuous mass injection plays a fundamental role in phenomena such as galaxy formation and evolution, fueling of supermassive black holes in galaxies and the consequent (negative and positive) feedback phenomena, and the origin of multiple stellar populations in globular clusters. In numerical simulations the calculation of the mass return can be time consuming, since it requires at each time step the evaluation of a convolution integral over the whole star formation history, so the computational time increases quadratically with the number of time-steps. The situation can be especially critical in hydrodynamical simulations, where different grid points are characterized by different star formation histories, and the gas cooling and heating times are shorter by orders of magnitude than the characteristic stellar lifetimes. In this paper we present a fast and accurate method to compute the mass return from stellar populations undergoing arbitrarily complicated star formation histories. At each time-step the mass return is calculated from its value at the previous time, and the star formation rate over the last time-step only. Therefore in the new scheme there is no need to store the whole star formation history, and the computational time increases linearly with the number of time-steps.
description: 8 pages, 4 figures, submitted, comments welcome
Transformed Estimation for Panel Interactive Effects Models*
Creators: name: Hsiao, Cheng
name: Shi, Zhentao
name: Zhou, Qiankun
Publisher: name: Taylor & Francis
Year: 2021
Subjects: subject: Biochemistry
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Biotechnology
subject: Evolutionary Biology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Immunology
subject: FOS: Clinical medicine
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics
subject: Marine Biology
subject: Cancer
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: Computational Biology

description: We propose a transformed estimator for the slope coefficients of panel models with interactive effects. The transformed estimation method does not require the prior knowledge of the dimension of factor structure. It is consistent and asymptotically normally distributed under fairly general conditions when N is fixed and T→∞ or T is fixed and N→∞, or when both N and T are large and NT→a≠0<∞. Moreover, because the transformation is equivalent to aggregating cross-sectional units or time units before implementing the least squares method over time or across cross-sectional units, it can bypass the issues arising from heteroskedasticity across cross-sectional units or serial correlations over time in the idiosyncratic errors. Furthermore, in the case that the idiosyncratic errors are independent over time, there is no asymptotic bias even the explanatory variables contain lagged dependent variables when NT→a<∞ as T→∞. Extensive Monte Carlo simulations are also conducted to examine the finite sample performance of the transformed estimation method.
In-line extraction of an ultra-stable frequency signal over an optical fiber link
Creators: name: Bercy, Anthony
name: Guellati-Khélifa, Saïda
name: Stefani, Fabio
name: Santarelli, Giorgio
name: Chardonnet, Christian
name: Pottie, Paul-Eric
name: Lopez, Olivier
name: Amy-Klein, Anne
Publisher: name: arXiv
Year: 2014
Subjects: subject: Optics (physics.optics)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We demonstrate in-line extraction of an ultra-stable frequency signal over an optical link of 92-km of installed telecommunication fibers, following the proposition of G. Grosche in 2010. We show that the residual frequency noise at the extraction end is noticeably below that at the main link output when the extraction is near the input end, as expected from a simple model of the noise compensation. We obtain relative frequency instabilities, expressed as overlapping Allan deviation, of 8x10-16 at 1 s averaging time and a few 10-19 at 1 day. These results are at the state-of-the-art for a link using urban telecommunication fibers. We also propose an improved scheme which delivers an ultra-stable signal of higher power, in order to feed a secondary link. In-line extraction opens the way to a broad distribution of an ultra-stable frequency reference, enabling a wide range of applications beyond metrology.
Numerical studies on post-fire residual capacity of axially restrained high strength steel columns under eccentric compression
Creators: name: Song, Linxin
name: Li, Guoqiang
Publisher: name: figshare
Year: 2023
Subjects: Fire safety engineering
Structural engineering

description: For steel structures, steel columns are the critical load-bearing components and they are usually restrained by other components connected to them. At and after fire, the restraints will induce the deflection and stress in columns, and the mechanical properties of high strength steels may reduce significantly. These two aspects have further effects on the post-fire residual capacity of the restrained columns. This paper presents the details of numerical studies on post-fire residual capacity of axially restrained high strength steel columns under eccentric compression, based on a verified finite element model built in ABAQUS. It can be concluded that the maximum temperature experienced during the fire, axially restraint stiffness ratio, eccentricity, load ratio and slenderness ratio have significant effects on the post-fire residual capacity of axially restrained high strength steel columns.
Observation of spectral interference for any path difference in an interferometer
Creators: name: Salazar-Serrano, Luis Jose
name: Valencia, Alejandra
name: Torres, Juan P.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We report the experimental observation of spectral interference in a Michelson interferometer, regardless of the relationship between the temporal path difference introduced between the arms of the interferometer and the spectral width of the input pulse. This observation is possible by introducing the polarization degree of freedom into a Michelson interferometer using a typical weak value amplification scenario.
description: 4 pages, 4 figures
On the area of accretion curtains from fast aperiodic time variability of the intermediate polar EX Hya
Creators: name: Semena, Andrey N.
name: Revnivtsev, Mikhail G.
name: Buckley, David A. H.
name: Kotze, Marissa M.
name: Khabibullin, Ildar I.
name: Breytenbach, Hannes
name: Gulbis, Amanda A. S.
name: Coppejans, Rocco
name: Potter, Stephen B.
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We present results of a study of the fast timing variability of the magnetic cataclysmic variable (mCV) EX Hya. It was previously shown that one may expect the rapid flux variability of mCVs to be smeared out at timescales shorter than the cooling time of hot plasma in the post shock region of the accretion curtain near the WD surface. Estimates of the cooling time and the mass accretion rate, thus provide us with a tool to measure the density of the post-shock plasma and the cross-sectional area of the accretion funnel at the WD surface. We have probed the high frequencies in the aperiodic noise of one of the brightest mCV EX Hya with the help of optical telescopes, namely SALT and the SAAO 1.9m telescope. We place upper limits on the plasma cooling timescale $τ
description: 11 pages 11 figures. Accepted for publication in MNRAS
Virtual Interactive 3D model 1a: Side determination of Scapula
Creators: name: Chauhan, Pradip
Publisher: name: figshare
Year: 2023
Subjects: Biomedical imaging
Virtual and mixed reality
Medical anthropology

description: Side determination of scapula: 1. The glenoid notch (Lateral angle) should be directed laterally. 2. The convex surface bearing the spinous process should be directed dorsally while the concave surface should be directed ventrally. 3. The thick border running from the lateral angle to the inferior angle is known as a lateral border and is directed laterally.