cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Extending the WMAP Bound on the Size of the Universe
Creators: name: Key, Joey Shapiro
name: Cornish, Neil J.
name: Spergel, David N.
name: Starkman, Glenn D.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Clues to the shape of our Universe can be found by searching the CMB for matching circles of temperature patterns. A full sky search of the CMB, mapped extremely accurately by NASA's WMAP satellite, returned no detection of such matching circles and placed a lower bound on the size of the Universe at 24 Gpc. This lower bound can be extended by optimally filtering the WMAP power spectrum. More stringent bounds can be placed on specific candidate topologies by using a a combination statistic. We use optimal filtering and the combination statistic to rule out the infamous "soccer ball universe'' model.
description: 9 pages, 16 figures
Perceived Quality of E-Wallet by University Students: Case Study of Orange Money
Creators: name: Cedric Kamgna, Che Tita , Otto Enyame, Constance Jawaid
Publisher: name: Zenodo
Year: 2024

description: The aim of this qualitative case study is to explore students’ perception about the services rendered by Orange Cameroon,with focus on Orange Money. To achieve this, we used the case study research design to interview students at theUniversity of Buea. The data collection method was face-to-face interview for a sampleof twenty-two students. The resultof the study reveals that students hold negative perceptions about Orange Money. This is because of the difficulties theyhave been facing while using the said service. These difficulties have contributed to the development of the negativeperceptions towards Orange Money. Some of the issues include pending and incomplete transactions and high cost oftransactions. Consequently, most of the users have switched to the immediate competitors because their network wasunable to provide useful assistance when problems arose. Added to that, with an environment characterized by a rejectionof French products affiliates, this perception keeps increasing especially as users’ problems are not comprehensivelyaddressed.
Hard and soft probe - medium interactions in a 3D hydro+micro approach at RHIC
Creators: name: Bass, S. A.
name: Renk, T.
name: Ruppert, J.
name: Nonaka, C.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We utilize a 3D hybrid hydro+micro model for a comprehensive and consistent description of soft and hard particle production in ultra-relativistic heavy-ion collisions at RHIC. In the soft sector we focus on the dynamics of (multi-)strange baryons, where a clear strangeness dependence of their collision rates and freeze-out is observed. In the hard sector we study the radiative energy loss of hard partons in a soft medium in the multiple soft scattering approximation. While the nuclear suppression factor $R_{AA}$ does not reflect the high quality of the medium description (except in a reduced systematic uncertainty in extracting the quenching power of the medium), the hydrodynamical model also allows to study different centralities and in particular the angular variation of $R_{AA}$ with respect to the reaction plane, allowing for a controlled variation of the in-medium path-length.
description: 5 pages, 4 figures, Quark Matter 2006 proceedings, to appear in Journal of Physics G
Searching for the elusive critical endpoint at finite temperature and isospin density
Creators: name: Sinclair, D. K.
name: Kogut, J. B.
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: We consider 3-flavour lattice QCD with a finite chemical potential mu_I for isospin, close to the finite temperature transition from hadronic matter to a quark-gluon plasma. In this region one can argue that the position and probably the nature of this transition mimic those at finite quark-number chemical potential mu. The quark mass is chosen to be close to the critical mass at zero chemical potentials. Since the Binder cumulants used to determine the nature of this transition in HMD(R) simulations are very sensitive to the updating increment dt, we have switched to the newer exact RHMC algorithm for our simulations. Preliminary results indicate that there is no critical endpoint in the small mu_I regime, at least none connected with the critical point at zero chemical potentials.
description: 7 pages Latex with 4 postscript figures. Talk presented by DKS at Lattice2006, Tucson
Tree Approximation for Spin Glass Models
Creators: name: Kawashima, Naoki
Publisher: name: arXiv
Year: 2007
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: An approximate numerical approach to spin models is proposed, in which the original lattice is transformed into a tree. This method is applied to the Edwards-Anderson spin glass model in two and three dimensions. It captures the characteristics of each individual sample and reproduces various qualitative features of sample averaged quantities similar to those that have been observed in previous Monte Carlo simulations. For example, from the Binder parameter for various system sizes as a function of the temperature we obtain Tc ~ 1.0 with ν~ 1.85, in reasonable agreement with previous Monte Carlo simulations. The present approximation yields the trivial structure for the overlap distribution function.
description: 4 pages, 7 figures
Kaluza-Klein solitons reexamined
Creators: name: de Leon, J. Ponce
Publisher: name: arXiv
Year: 2006
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In (4 + 1) gravity the assumption that the five-dimensional metric is independent of the fifth coordinate authorizes the extra dimension to be either spacelike or timelike. As a consequence of this, the time coordinate and the extra coordinate are interchangeable, which in turn allows the conception of different scenarios in 4D from a single solution in 5D. In this paper, we make a thorough investigation of all possible 4D scenarios, associated with this interchange, for the well-known Kramer-Gross-Perry-Davidson-Owen set of solutions. We show that there are {\it three} families of solutions with very distinct geometrical and physical properties. They correspond to different sets of values of the parameters which characterize the solutions in 5D. The solutions of physical interest are identified on the basis of physical requirements on the induced-matter in 4D. We find that only one family satisfies these requirements; the other two violate the positivity of mass-energy density. The "physical" solutions possess a lightlike singularity which coincides with the horizon. The Schwarzschild black string solution as well as the zero moment dipole solution of Gross and Perry are obtained in different limits. These are analyzed in the context of Lake's geometrical approach. We demonstrate that the parameters of the solutions in 5D are not free, as previously considered. Instead, they are totally determined by measurements in 4D. Namely, by the surface gravitational potential of the astrophysical phenomena, like the Sun or other stars, modeled in Kaluza-Klein theory. This is an important result which may help in observations for an experimental/observational test of the theory.
description: In V2 we include an Appendix, where we examine the conformal approach. Minor changes at the beginning of section 2. In V3 more references are added. Minor editorial changes in the Introduction and Conclusions sections
$^{210}$Pb measurements at the André E. Lalonde AMS Laboratory for the radioassay of materials used in rare event search detectors
Creators: name: Vivo-Vilches, Carlos
name: Weiser, Benjamin
name: Zhao, Xiaolei
name: Francisco, Barbara B. A.
name: Gornea, Razvan
name: Kieser, William E.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: Naturally occurring radionuclide $^{210}$Pb ($T_{1/2}$=22.2 y) is an important source of background in rare event searches, such as neutrinoless double-$β$ decay and dark matter direct detection experiments. When a sample mass of hundreds of grams is available, $γ$-counting measurements can be performed. However, there are other cases where only grams of sample can be used. For these cases, better sensitivities are required. In this paper, in collaboration with the Astroparticle Physics group at Carleton University, the capabilities of the A.E. Lalonde AMS Laboratory at the University of Ottawa for $^{210}$Pb measurements are discussed. PbF$_{2}$ and PbO targets were used, selecting in the low energy sector, respectively, (PbF$_{3}$)$^{-}$ or (PbO$_{2}$)$^{-}$ ions. For fluoride targets, the blank $^{210}$Pb/$^{206}$Pb ratio was in the 10$^{-14}$ to 10$^{-13}$ range, but current output was lower and less stable. For oxide targets, current output showed better stability, despite a significant difference in current output for commercial PbO and processed samples, and background studies suggested a background not much higher than that of the fluoride targets. Both target materials showed, therefore, good performance for $^{210}$Pb AMS assay. Measurements of Kapton films, an ultra-thin polymer material, where masses available are typically just several grams, were performed. 90% C.L. upper limits for the $^{210}$Pb specific activity in the range of 0.74-2.8 Bq/kg were established for several Kapton HN films.
description: 16 pages, 2 figures, 7 tables. We have noticed on a mistake in version 1: due to a typo in the spreadsheet used to analyze the data, where we forgot to use the charge state of 206Pb3+ to calculate the 210Pb/206Pb ratio, the uncorrected ratios are 3 times lower. Since this affects also the standards, the final corrected 210Pb/206Pb ratio are not very different from those presented in version 1
LINGUOCULTURAL STUDY OF THE VERBALIZERS OF THE CONCEPT OF KINSHIP IN THE TRANSLATION OF THE NATIONAL AND CULTURAL WORKS OF THE UZBEK PEOPLE
Creators: name: Uliqova, Mavludakhon
Publisher: name: Zenodo
Year: 2024

description: Translation is a bridge between language and culture. Translation is an important tool for communication between speakers of different languages. Because we can get information about the culture, history, literature and scientific research of other peoples through translation. Translation helps to develop understanding and respect between peoples. It promotes intercultural exchange and helps promote peace and harmony on a global scale.
Elemental Abundance Measurements in Low-redshift Damped Lyman Alpha Absorbers
Creators: name: Meiring, Joseph D.
name: Kulkarni, Varsha P.
name: Khare, Pushpa
name: Bechtold, Jill
name: York, Donald G.
name: Cui, Jun
name: Lauroesch, James T.
name: Crotts, Arlin P. S.
name: Nakamura, Osamu
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present elemental abundance measurements for 9 damped Ly-alpha systems (DLAs) and 1 sub-DLA at 0.1 < z < 1.5 from recent observations with the Multiple Mirror Telescope. Most of these absorbers are found to be metal-poor, while 2 are found to have ~ 30-50 solar metallicities. Combining our data with other data from the literature, we find that the systems with higher [Zn/H] also have stronger depletion as measured by [Cr/Zn] and [Fe/Zn]. The relationship between the metallicity and H I column density is also investigated. Together with our previous MMT survey (Khare et al. 2004) we have discovered 2 of the 4 known absorbers at z < 1.5 that lie above (although near) the "obscuration threshold". This appears to be a result of selecting absorbers with strong metal lines in our sample. It would be interesting to find other similar systems by observing a larger sample and study how much such systems contribute to the cosmic budget of metals. Finally, an analysis of the N(H I)-weighted mean metallicity vs. redshift for our sample combined with data from the literature supports previous conclusions that the N(H I)-weighted mean global DLA metallicity rises slowly at best and falls short of solar levels by a factor of > 4 even at z=0.
description: 20 pages, 16 figures, accepted for publication in MNRAS
Non-Markovian Effects of Two-Level Systems in a Niobium Coaxial Resonator with a Single-Photon Lifetime of 10 ms
Creators: name: Heidler, P.
name: Schneider, C. M. F.
name: Kustura, K.
name: Gonzalez-Ballestero, C.
name: Romero-Isart, O.
name: Kirchmair, G.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Understanding and mitigating loss channels due to two-level systems (TLS) is one of the main cornerstones in the quest of realizing long photon lifetimes in superconducting quantum circuits. Typically, the TLS to which a circuit couples are modeled as a large bath without any coherence. Here we demonstrate that the coherence of TLS has to be considered to accurately describe the ring-down dynamics of a coaxial quarter-wave resonator with an internal quality factor of $0.5\times10^9$ at the single-photon level. The transient analysis reveals effective non-Markovian dynamics of the combined TLS and cavity system, which we can accurately fit by introducing a comprehensive TLS model. The fit returns an average coherence time of around $T_2^*\approx0.3\,\mathrm{μs}$ for a total of $N\approx10^{9}$ TLS with power-law distributed coupling strengths. Despite the shortly coherent TLS excitations, we observe long-term effects on the cavity decay due to coherent elastic scattering between the resonator field and the TLS. Moreover, this model provides an accurate prediction of the internal quality factor's temperature dependence.
description: 11 pages, 10 figures
Polymer dispersed liquid crystals and related electro-optical devices – I – Overview
Creators: name: Sparavigna, Amelia Carolina
Publisher: name: Zenodo
Year: 2019
Subjects: Liquid Crystals

description: To have a polymer dispersed liquid crystal (PDLC), the liquid crystalline material is dispersed into a liquid polymer. When the polymer changes from liquid to solid, the liquid crystal becomes incompatible with the polymer and creates dispersed droplets throughout the polymeric film. These films can be processed by standard techniques to have large and environmentally robust displays and light shutters. This paper describes PDLC films and their properties in a simplified approach, suitable for teaching the devices based on such films to students of university courses.
RO-Crate: A lightweight approach to Research Object data packaging
Creators: name: Carragáin, Eoghan Ó
name: Goble, Carole
name: Sefton, Peter
name: Soiland-Reyes, Stian
Publisher: name: F1000 Research Limited
Year: 2019

description: Presented at Bioinformatics Open Source Conference (BOSC) (BOSC), ISMB/ECCB 2019, Basel, Switzerland, 24-25 July 2019

Accepted Abstract: https://doi.org/10.5281/zenodo.3337883

Poster: https://doi.org/10.5281/zenodo.3343031

A Research Object (RO) provides a machine-readable mechanism to communicate the diverse set of digital and real-world resources that contribute to an item of research. The aim of an RO is to replace traditional academic publications of static PDFs, to rather provide a complete and structured archive of the items (such as people, organisations, funding, equipment, software etc) that contributed to the research outcome, including their identifiers, provenance, relations and annotations. This is increasingly important as researchers now rely heavily on computational analysis, yet we are facing a reproducibility crisis as key components are often not sufficiently tracked, archived or reported.re

We propose Research Object Crate (or RO-Crate for short), an emerging lightweight approach to package research data with their structured metadata, based on schema.org annotations in a formalized JSON-LD format that can be used independent of infrastructure to encourage FAIR sharing of reproducible datasets and analytical methods.
Additional file 4 of Suppression of histone deacetylases by SAHA relieves bone cancer pain in rats via inhibiting activation of glial cells in spinal dorsal horn and dorsal root ganglia
Creators: name: He, Xiao-Tao
name: Hu, Xiao-Fan
name: Zhu, Chao
name: Zhou, Kai-Xiang
name: Zhao, Wen-Jun
name: Zhang, Chen
name: Han, Xiao
name: Wu, Chang-Le
name: Wei, Yan-Yan
name: Wang, Wei
name: Deng, Jian-Ping
name: Chen, Fa-Ming
name: Gu, Ze-Xu
name: Dong, Yu-Lin
Publisher: name: figshare
Year: 2020
Subjects: subject: Biochemistry
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Neuroscience
subject: Ecology
subject: Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Cancer

description: Additional file 4. Table S1. Primer sequences used in this study.
Tetrad: Actively Secure 4PC for Secure Training and Inference
Creators: name: Koti, Nishat
name: Patra, Arpita
name: Rachuri, Rahul
name: Suresh, Ajith
Publisher: name: arXiv
Year: 2021
Subjects: subject: Cryptography and Security (cs.CR)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: Mixing arithmetic and boolean circuits to perform privacy-preserving machine learning has become increasingly popular. Towards this, we propose a framework for the case of four parties with at most one active corruption called Tetrad. Tetrad works over rings and supports two levels of security, fairness and robustness. The fair multiplication protocol costs 5 ring elements, improving over the state-of-the-art Trident (Chaudhari et al. NDSS'20). A key feature of Tetrad is that robustness comes for free over fair protocols. Other highlights across the two variants include (a) probabilistic truncation without overhead, (b) multi-input multiplication protocols, and (c) conversion protocols to switch between the computational domains, along with a tailor-made garbled circuit approach. Benchmarking of Tetrad for both training and inference is conducted over deep neural networks such as LeNet and VGG16. We found that Tetrad is up to 4 times faster in ML training and up to 5 times faster in ML inference. Tetrad is also lightweight in terms of deployment cost, costing up to 6 times less than Trident.
Μια εγκληματολογική προσέγγιση του ρατσισμού και η βίαιη έκφανσή του στην Ελλάδα της κρίσης:
Creators: name: Παπαδογιάννη, Ελευθερία Δημητρίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2013
Subjects: ρατσισμός
μετανάστες
κρίση
racism
immigrants
crisis

description: Σκοπός της παρούσας εργασίας ήταν η μελέτη των περιστατικών ρατσιστικής βίας που εμφανίστηκαν στην Ελλάδα, κατά την τελευταία κυρίως διετία, υπό το καθεστώς της οικονομικής κρίσης. Για την πληρέστερη ωστόσο, προσέγγιση της έννοιας του ρατσισμού, έγινε μια παρουσίαση του ορισμού του και των ειδικότερων εκφάνσεών του, αναπτύχθηκαν συναφείς του έννοιες και αναζητήθηκαν τα αίτιά του ενώ εξετάστηκε το προφίλ του δράστη και η ψυχολογία του θύματος του ρατσισμού. Στη συνέχεια, αναλύθηκε το νομοθετικό οπλοστάσιο που στρέφεται εναντίον του, τόσο σε διεθνές και ευρωπαϊκό επίπεδο όσο και στην εθνική μας έννομη τάξη. Τέλος, έγινε μια αναδρομή στο παρελθόν της χώρας προκειμένου να διαγνωστεί η ύπαρξη ή μη ρατσιστικής ιδεολογίας και να συγκριθεί με το βίαια ρατσιστικό παρόν, τις κοινωνικές, πολιτικές και οικονομικές συνθήκες που έχουν συμβάλει στη διαμόρφωσή του και την αντίδραση της ελληνικής πολιτείας για την αντιμετώπισή του.
description: The aim of this paper was the study of racist violence incidents that occurred in Greece mainly in the last two years, under the scheme of the financial crisis. To be able to have the fullest approach of what racism really is, a definition is given on it and all of its specific categories, similar concepts were looked at and its causes were searched, also the profile of the perpetrator and the psychology of the victim were questioned. Furthermore the international, european and national legal system regarding racism was analysed. Finally, a closer look was taken into the past years of the country so as to compare it to the racial present, the social, the financial and the political circumstances that have played a part in today’s racist reality and the way the greek government deals with it.
Μελέτη αποκατάστασης και επανάχρησης του «Πρώην Τελωνείου» Δράμας
Creators: name: Μποζοπούλου, Αννα Αναστασίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2013
Subjects: Αποκατάσταση
Πρώην Τελωνείο
Δράμα
Restoration
Former Customhouse
Drama

description: Σκοπός αυτής της διπλωματικής εργασίας ήταν η μελέτη αποκατάστασης και επανάχρησης του «Πρώην Τελωνείου» Δράμας. Αποτυπώθηκε το κτίριο, όπως και επιμέρους στοιχεία του, ενώ επίσης περιγράφηκε η τυπολογία και η εξωτερική μορφολογία του. Ακόμη μελετήθηκε η ιστορία του μνημείου αλλά και της ευρύτερης περιοχής του. Επιπλέον αναλύθηκαν οι οικοδομικές φάσεις, η κατασκευαστική δομή και η παθολογία του. Τέλος, προτάθηκαν εργασίες για την αποκατάσταση και επανάχρηση του μνημείου αφού αξιολογήθηκαν τα στοιχεία των φάσεων που διασώζονται στο μνημείο και οι χωρικές του δυνατότητες.
description: In this thesis we present a study of the restoration and re-use of the “Former Customhouse” building in Drama. We describe the surveyed building, focusing on some of its specific elements, and we illustrate its typology and external morphology. We also study the history of the monument and its surroundings and analyze the structural phases, its construction and pathology. Finally, after evaluating the surviving phases and spatial capabilities of the monument, we make proposals regarding its restoration and re-use.
Dynamics of spin-polarized impurity in ultracold Fermi gas
Creators: name: Magierski, Piotr
name: Tüzemen, Buğra
name: Wlazłowski, Gabriel
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We show that the motion of spin-polarized impurity (ferron) in ultracold atomic gas is characterized by a certain critical velocity which can be traced back to the amount of spin imbalance inside the impurity. We have calculated the effective mass of ferron in two dimensions. We show that the effective mass scales with the surface of the ferron. We discuss the impact of these findings; in particular, we demonstrate that ferrons become unstable in the vicinity of a vortex.
Cosmic D-Strings and Vortons in Supergravity
Creators: name: Brax, Ph.
name: van de Bruck, C.
name: Davis, A. C.
name: Davis, Stephen C.
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Recent developments in string inspired models of inflation suggest that D-strings are formed at the end of inflation. Within the supergravity model of D-strings there are 2(n-1) chiral fermion zero modes for a D-string of winding n. Using the bounds on the relic vorton density, we show that D-strings with winding number n>1 are more strongly constrained than cosmic strings arising in cosmological phase transitions. The D-string tension of such vortons, if they survive until the present, has to satisfy 8πG_N μ\lesssim p 10^{-26} where p is the intercommutation probability. Similarly, D-strings coupled with spectator fermions carry currents and also need to respect the above bound. D-strings with n=1 do not carry currents and evade the bound. We discuss the coupling of D-strings to supersymmetry breaking. When a single U(1) gauge group is present, we show that there is an incompatibility between spontaneous supersymmetry breaking and cosmic D-strings. We propose an alternative mechanism for supersymmetry breaking, which includes an additional U(1), and might alleviate the problem. We conjecture what effect this would have on the fermion zero modes.
description: 11 pages
Comparison of efficacy of second-generation anticoagulant rodenticides: Effect of active ingredients, type of formulation and commercial suppliers
Creators: name: Suárez, Olga V.
name: Cueto, Gerardo R.
Publisher: name: Taylor & Francis
Year: 2018
Subjects: subject: Biochemistry
subject: Medicine
subject: Biotechnology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Science Policy
subject: Hematology

description: The lack of a standardized protocol makes it difficult to compare studies on the efficacy of commercial rodenticides. To contribute to the knowledge of pest control technology, we compared the efficacy of 17 commercial baits with different active ingredients and types of formulation from various commercial suppliers, using a standardized efficacy protocol under laboratory conditions. All rats died in all experimental groups. First deaths occurred 3 days after the beginning of the trial; average survival varied between 4.17 ± 0.12 days (difethialone wax blocks) and 5.96 ± 0.35 days (difenacoum pellets). Results showed no consistent pattern of time to death according to active ingredient and type of formulation. For bromadiolone-based baits, the grains induced significantly shorter time to death than wax blocks and the individuals fed on wax blocks varied the consumption rate according to the commercial supplier, while those consuming grains showed more homogeneous values. Our results show that although mortality was 100% efficacy differed among baits. These differences could be explained by the combination of the formulation type and commercial supplier rather than by the active ingredient itself.
Προσωπικά Δεδομένα και Διαδίκτυο:
Creators: name: Παπατσούμα, Ιωάννα ΝΙκολάου
Publisher: name: Aristotle University of Thessaloniki
Year: 2013
Subjects: Δειγματοληψία
Παραγοντική Ανάλυση
Διαδίκτυο
Factor Analysis
Internet
Sampling

description: Σκοπός της παρούσας θέσης είναι η μελέτη της στάσης και της συμπεριφοράς των χρηστών του Διαδικτύου απέναντι στο ζήτημα της διαφύλαξης των προσωπικών τους δεδομένων στο χώρο αυτό. Τα προσωπικά μας δεδομένα είναι ένα αγαθό που πρέπει να διαφυλάσσουμε και να μην υποτιμούμε την αξία του. Το Διαδίκτυο, παρά τα αναμφισβήτητα πλεονεκτήματά του, αυξάνει, εκ φύσεως, τους κινδύνους παράνομης συλλογής και επεξεργασίας τους και σε συνδυασμό με τη συνεχώς αυξανόμενη διείσδυσή του, αναδεικνύει το ακανθώδες θέμα της ιδιωτικότητας και της προστασίας των προσωπικών δεδομένων των χρηστών του Διαδικτύου. Οι περισσότεροι χρήστες βρίσκονται σε σύγχυση όσον αφορά την ασφάλεια των δεδομένων τους, μη γνωρίζοντας τους κινδύνους και τις απειλές που αντιμετωπίζουν καθημερινά, ενώ οι εταιρείες παροχής υπηρεσιών, είτε πρόκειται για αγορές μέσω διαδικτύου και online τραπεζικές συναλλαγές είτε για υποβολή φορολογικών δηλώσεων κλπ., εθίζουν τους χρήστες σε πρακτικές χαμηλής ασφάλειας και παρέχουν μια αίσθηση ότι ασχολούνται αποτελεσματικά με την ασφάλεια των δεδομένων τους. Η εργασία παρουσιάζει τα αποτελέσματα δειγματοληπτικής έρευνας με ερωτηματολόγια που πραγματοποιήθηκε σε προπτυχιακούς και μεταπτυχιακούς φοιτητές του Τμήματος Μαθηματικών του Αριστοτελείου Πανεπιστημίου Θεσσαλονίκης.
description: Our personal data is an asset that should be preserved by each of us and not be underestimated. The Internet, despite its undoubted benefits, increases the risks of illegal collection and treatment of personal data, and in combination with its increasing penetration, highlights the thorny issue of the protection of privacy and personal data on the Internet. Most users are ignorant about the security of their data, without knowing the risks and threats, as most daily service-companies, such as online stores, e-banking, filing tax returns etc, desensitize them in low security practices and provide a false sense that they deal effectively with the security of their data. This thesis presents the results of a questionnaire survey of undergraduate and postgraduate students of the Department of Mathematics at Aristotle University of Thessaloniki. The purpose of the survey was to study their attitude and behavior towards the issue of safeguarding their personal data on the Internet.
Ανίχνευση παιδιών προσχολικής ηλικίας σε επικινδυνότητα για διαταραχές λόγου και πρόγραμμα εκπαίδευσης γνωστικών στρατηγικών:
Creators: name: Βαβάτσικου, Δήμητρα Κωνσταντίνου
Publisher: name: Aristotle University of Thessaloniki
Year: 2013
Subjects: Διαταραχές λόγου
Αφηγηματικός λόγος
Στρατηγική της γραμματικής των ιστοριών
Language Disorder
Narratives
Story grammar

description: Σχεδιάστηκε μία έρευνα – παρέμβαση η οποία είχε τους εξής στόχους: (α) αρχικά εντοπίστηκαν παιδιά προσχολικής ηλικίας τα οποία βρίσκονταν σε επικινδυνότητα να αναπτύξουν μαθησιακές δυσκολίες εξαιτίας των προβλημάτων που παρουσίαζαν στο λόγο, (β) αξιολογήθηκαν τα παιδιά αυτά ώστε να εντοπιστεί η μαθησιακή και η γλωσσική τους ετοιμότητα με τα κριτήρια Detroit και Λ- α -Τ- ω, (γ) σχεδιάστηκε και εφαρμόστηκε ένα πρόγραμμα εκπαίδευσης στην περιοχή του αφηγηματικού λόγου, με γνωστικές στρατηγικές, όπως αυτή της γραμματικής των ιστοριών και στο τέλος (δ) επαναξιολογήθηκαν τα παιδιά και διαπιστώθηκε η αποτελεσματικότητα του προγράμματος εκπαίδευσης. Η εφαρμογή του είναι σύμφωνη με το Αναλυτικό Πρόγραμμα για το Νηπιαγωγείο και προτείνεται ως εναλλακτική εκπαίδευση στον αφηγηματικό λόγο στην προσχολική ηλικία, κατάλληλο τόσο για υποστήριξη στα τμήματα ένταξης όσο και για προγράμματα μέσα στην τάξη.
description: This intervention study aims to the following objectives: (a) initially, preschoolers at risk of developing learning difficulties due to language disorder were screened , (b) these children were assessed in order to identify the learning and linguistic ability in reference to Detroit and L-a-T-o tests, (c) a narrative text structure programme was applied with cognitive strategies, such as story grammar, and finally (d) re-assessment of the children showed the effectiveness of the intervention programme. Its application is in accordance with the Curriculum for Kindergarten and is proposed as an alternative educational narrative programme for preschoolers, suitable both for support in integration classes and in the classroom.
RO-Crate, a lightweight approach to Research Object data packaging
Creators: name: Carragáin, Eoghan Ó
name: Goble, Carole
name: Sefton, Peter
name: Soiland-Reyes, Stian
Publisher: name: F1000 Research Limited
Year: 2019

description: Accepted abstract: https://doi.org/10.5281/zenodo.3337883

This Poster: https://doi.org/10.5281/zenodo.3343031

Slides: https://slides.com/soilandreyes/2019-07-24-bosc-ro-crate/

A Research Object (RO) provides a machine-readable mechanism to communicate the diverse set of digital and real-world resources that contribute to an item of research. The aim of an RO is to replace traditional academic publications of static PDFs, to rather provide a complete and structured archive of the items (such as people, organisations, funding, equipment, software etc) that contributed to the research outcome, including their identifiers, provenance, relations and annotations. This is increasingly important as researchers now rely heavily on computational analysis, yet we are facing a reproducibility crisis as key components are often not sufficiently tracked, archived or reported.

We propose Research Object Crate (or RO-Crate for short), an emerging lightweight approach to package research data with their structured metadata, based on schema.org annotations in a formalized JSON-LD format that can be used independent of infrastructure to encourage FAIR sharing of reproducible datasets and analytical methods.
Classical dilations à la Hudson-Parthasarathy of Markov semigroups
Creators: name: Gregoratti, M.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics
subject: 60J27; 81S25

description: We study the Classical Probability analogue of the dilations of a quantum dynamical semigroup defined in Quantum Probability via quantum stochastic differential equations. Given a homogeneous Markov chain in continuous time in a finite state space E, we introduce a second system, an environment, and a deterministic invertible time-homogeneous global evolution of the system E with this environment such that the original Markov evolution of E can be realized by a proper choice of the initial random state of the environment. We also compare this dilations with the dilations of a quantum dynamical semigroup in Quantum Probability: given a classical Markov semigroup, we extend it to a proper quantum dynamical semigroup for which we can find a Hudson-Parthasarathy dilation which is itself an extension of our classical dilation.
Additional file 1 of Cytochrome C catalyzed oxygen tolerant atom-transfer radical polymerization
Creators: name: Xie, Peng-Cheng
name: Guo, Xue-Qing
name: Yang, Fu-Qiao
name: Xu, Nuo
name: Chen, Yuan-Yuan
name: Wang, Xing-Qiang
name: Wang, Hongcheng
name: Yong, Yang-Chun
Publisher: name: figshare
Year: 2022
Subjects: Biochemistry
Biotechnology
Environmental Sciences not elsewhere classified
Chemical Sciences not elsewhere classified
Biological Sciences not elsewhere classified

description: Additional file 1: Figure S1. The effect of cytochrome C concentrations on the SMA conversion rate. Figure S2. The cytochrome C catalyzed ATRP for the polymerization of PSS. The monomer of PSS do not show fluorescence (Ex: 485 nm; Em: 535 nm), while the polymerized PSS showed obvious fluorescence with the excitation of 485 nm. The results indicated that the PSS monomer could be polymerized by cytochrome C catalyzed ATRP under anaerobic or aerobic condition. Figure S3. GPC analysis of PSS polymer synthesized by the cytochrome C catalyzed ATRP. Figure S4. The time-course change of the Fe(II) concentration of the cytochrome C catalyzed ATRP under anaerobic condition. Figure S5. The effects of different metal ion chelators (2 mM) on the SMA conversion of the cytochrome C catalyzed ATRP under anaerobic condition. Figure S6. SMA conversion of the free Fe(II) or Fe-TPMA catalyzed ATRP under anaerobic or aerobic condition. Figure S7. The proposed schematic for cytochrome C catalyzed ATRP.
The control of episodic breathing in the bullfrog (Rana catesbeiana)
Creators: name: Kinkead, Richard
Publisher: name: University of British Columbia
Year: 2009

description: Like many lower vertebrates, bullfrogs breathe episodically; i.e. breathing occurs in bouts that are interrupted by periods of apnea. This breathing pattern contrasts with the continuous alternation between inspiration and expiration usually seen in mammals. Little is known about the mechanisms underlying episodic breathing; hence, the objective of this thesis was to investigate respiratory control in the bullfrog to determine what causes the onset/termination of the episodes of breathing. A variety of preparations, ranging from the “ta (whole) animal to the in vitro brainstem-spinal cord preparation were used. This reductionist approach made it possible to assess the contribution of the different components of the respiratory control system towards pattern formation. The initial studies focused on the role of afferent feedback from different groups of peripheral receptors. In these experiments, receptor input was either eliminated by denervation or manipulated artificially. The results have shown that each receptor group influences pattern differently, either by affecting the number of breaths in an episode, or the duration of the apneic (non-ventilatory) period. However, none of the receptor groups investigated were responsible for clustering the breaths into episodes. These results were subsequently confirmed by recording the respiratory-related motor output from an in vitro brainstem-spinal cord preparation, which produced a “fictive” breathing pattern that was episodic, and virtually identical to that of intact frogs. Because this preparation is essentially devoid of afferent feedback (except for central chemoreceptors) and descending inputs but still can produce breathing episodes, it was concluded that the episodic breathing pattern of the bullfrog is an intrinsic property of the central nervous system, and can occur without peripheral feedback. The final study assessed the role of the nucleus isthmi in breathing pattern formation. This nucleus is located between the midbrain roof and the base of the cerebellum. Bilateral microinjections of the neurotoxin kainic acid in the nucleus isthmi area significantly reduced the breathing frequency, and the breathing pattern consisted mainly of evenly-spaced single breaths. This suggests that the nucleus isthmi provides the tonic drive to breathe, which is a key element in the production of breathing episodes of more than one breath. It is concluded that the mechanisms accounting for the onset/termination of breathing episodes may reflect a property of the neuronal circuitry responsible for respiratory rhythmogenesis, and/or burst pattern formation rather than an interaction between afferent inputs and the central nervous system.
Einstein Metrics, Complex Surfaces, and Symplectic 4-Manifolds
Creators: name: LeBrun, Claude
Publisher: name: arXiv
Year: 2008
Subjects: subject: Differential Geometry (math.DG)
subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 53C25, 57R57

description: Which smooth compact 4-manifolds admit an Einstein metric with non-negative Einstein constant? A complete answer is provided in the special case of 4-manifolds that also happen to admit either a complex structure or a symplectic structure.
description: 12 pages, LaTeX2e. Final version, to appear in Math. Proc. Camb. Phil. Soc. (Preliminary version appeared in informal lecture-note volume in honor of Fujiki's 60th birthday.)
Classical Newar Annotation Manual: Part II: Segmentation and Part-of-Speech Tagging
Creators: name: O'Neill, Alexander
name: Meelen, Marieke
Publisher: name: Zenodo
Year: 2024

description: This is part two of the Classical Newar Annotation Manual for the Diachronic Annotated Corpus of Newar (DACON) detailing segementation and part-of-speech tagging procedures for corpus annotation.

For full details, please see:O'Neill & Meelen, "The Diachronic Annotated Corpus of Newar: from Manuscript to Morphosyntax," Cahiers de Linguistique Asie Orientale (2024).

See also:
Part I (Preprocessing)

 

Tools for the Diachronic Annotated Corpus of Newar (DACON)
Stakeholder perceptions of the outcomes of reforms on the performance and sustainability of the cotton sector in Ghana and Burkina Faso: A tale of two countries
Creators: name: Yaw Agyeman Boafo
name: Boubacar Siddighi Balde
name: Saito, Osamu
name: Gasparatos, Alexandros
name: Lam, Rodolfo Dam
name: Ouedraogo, Nadia
name: Chamba, Emmanuel
name: Zida P. Moussa
Publisher: name: Taylor & Francis
Year: 2018
Subjects: subject: Medicine
subject: Biotechnology
subject: Sociology
subject: FOS: Sociology
subject: Science Policy

description: This study investigates the outcomes of reforms on the performance of the cotton sector in Ghana and Burkina Faso. These structural and policy reforms have been aimed at promoting competition and enhancing productivity, largely under the pressure of external donor agencies. The study draws on in-depth semi-structured interviews with stakeholders involved in different aspects of cotton value chains in the two countries. In particular, it elicits their perception of how reforms affected six domains (input credit systems, price determination and profit distribution, extension services, research and development, institutional and regulatory systems, and food security) related to the performance of the sector. This is complemented with the analysis of policy documents and annual cotton production statistics pre- and post-reform. Results indicate that reforms in Ghana and Burkina Faso took different directions, and subsequently, generated different outcomes to the six performance domains. Stakeholders in Ghana perceived predominantly negative outcomes, whereas Burkinabe stakeholders perceived both negative and positive outcomes. Regarding price determination for instance, Ghanaian respondents mentioned the lack of transparency in the seasonal price-setting system and the decline in government revenue and farmer profit as direct outcomes of reform actions. Burkinabe respondents cited the guaranteed minimum price, high profit-sharing among farmers, and the favorable price incentives as some positive outcomes of the reforms. The empirical information outlined in this study can be used to identify the positive and negative lessons learnt that can be relevant to stakeholders in the public and private sector, and efforts to help sustain the cotton sector in different parts of sub-Saharan Africa.
Observation of Bs-Bsbar Oscillations
Creators: name: CDF Collaboration
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We report the observation of Bs-Bsbar oscillations from a time-dependent measurement of the Bs-Bsbar oscillation frequency Delta ms. Using a data sample of 1 fb^-1 of p-pbar collisions at sqrt{s}=1.96 TeV collected with the CDF II detector at the Fermilab Tevatron, we find signals of 5600 fully reconstructed hadronic Bs decays, 3100 partially reconstructed hadronic Bs decays, and 61500 partially reconstructed semileptonic Bs decays. We measure the probability as a function of proper decay time that the Bs decays with the same, or opposite, flavor as the flavor at production, and we find a signal for Bs-Bsbar oscillations. The probability that random fluctuations could produce a comparable signal is 8 X 10^-8, which exceeds 5 sigma significance. We measure Delta ms = 17.77 +- 0.10 (stat) +- 0.07 (syst) ps^-1 and extract |Vtd/Vts| = 0.2060 +- 0.0007 (exp) + 0.0081 - 0.0060 (theor).
description: 9 pages, 5 figures, submitted to Physical Review Letters
Selbstmanagement für Jugendliche mit Lernschwierigkeiten Das Zürcher Ressourcen Modell didaktisch aufbereitet
Creators: name: Münch, Susanne
Publisher: name: Zenodo
Year: 2015
Subjects: Sonderpädagogik
Lernstörung
Jugend
Masterarbeit

description: Diese Forschungsarbeit widmet sich der Frage, ob auch Jugendliche im Oberstufenalter mit Lernschwierigkeiten ihr Selbstmanagement mittels der Strategien des Zürcher Ressourcen Modells (ZRM) verbessern können und welche Hilfestellungen dazu am besten geeignet sind. In der Auseinandersetzung mit dem ZRM-Modell und theoretischen Hintergrundinformationen habe ich den bestehenden Leitfaden des ZRMs für Jugendliche mit Lernschwierigkeiten angepasst. Das Produkt, das ich entwickelt habe, ist ein Selbstmanagement-Training für Jugendliche mit Lernschwierigkeiten nach der Vorlage des Zürcher Ressourcen Modells. Diese Arbeit beinhaltet im ersten Teil Hintergrundinformationen zu den Themen Jugendalter und Lernschwierigkeiten und zum theoretischen Hintergrund des Zürcher Ressourcen Modells und weiterer ergänzender Modelle, sowie didaktische und methodische Überlegen dazu. Daraus resultieren Überlegungen und Konsequenzen für die Erstellung des Leitfadens des Selbstmanagement-Trainings für Jugendliche mit Lernschwierigkeiten. Dieser Kurs wurde daraufhin mit freiwilligen Schülerinnen und Schülern einer Oberstufe im Kanton Aargau durchgeführt und anschliessend Mittels Forschungstagebuch, Fragebogen und Interviews mit den Kursteilnehmenden qualitativ ausgewertet. Diese Erkenntnisse wurden wiederum verwendet, um den Leitfaden gezielt zu verbessern. Es stellte sich heraus, dass Jugendliche mit Lernschwierigkeiten sehr wohl vom Zürcher Ressourcen Modell profitieren und ihre Selbstkompetenzen damit erweitern können. Geeignete Methoden sind hierfür eine enge persönliche Begleitung der Jugendlichen, viele praktische Beispiele und Übungen sowie eine stets positive und motivierende Haltung der Kursleitung. Ebenfalls als Gewinn bringend hat sich der regelmässige Einsatz von Social Media gezeigt.
Switchable coupling for superconducting qubits using double resonance in the presence of crosstalk
Creators: name: Ashhab, S.
name: Nori, Franco
Publisher: name: arXiv
Year: 2007
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: Several methods have been proposed recently to achieve switchable coupling between superconducting qubits. We discuss some of the main considerations regarding the feasibility of implementing one of those proposals: the double-resonance method. We analyze mainly issues related to the achievable effective coupling strength and the effects of crosstalk on this coupling approach. We also find a new, crosstalk-assisted coupling channel that can be an attractive alternative when implementing the double-resonance coupling proposal.
description: 4 pages, 3 figures
Theory of non-Fermi liquid and pairing in electron-doped cuprates
Creators: name: Krotkov, Pavel
name: Chubukov, Andrey V.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We apply the spin-fermion model to study the normal state and pairing instability in electron-doped cuprates near the antiferromagnetic QCP. Peculiar frequency dependencies of the normal state properties are shown to emerge from the self-consistent equations on the fermionic and bosonic self-energies, and are in agreement with experimentally observed ones. We argue that the pairing instability is in the $d_{x^{2}-y^{2}}$ channel, as in hole-doped cuprates, but theoretical $T_{c}$ is much lower than in the hole-doped case. For the same hopping integrals and the interaction strength as in hole-doped materials, we obtain $T_{c}\sim10$K at the end point of the antiferromagnetic phase. We argue that a strong reduction of $T_{c}$ in electron-doped cuprates compared to hole-doped ones is due to critical role of the Fermi surface curvature for electron-doped materials. The $d_{x^{2}-y^{2}}$-pairing gap $Δ(\mathbf{k},ω)$ is strongly non-monotonic along the Fermi surface. The position of the gap maxima, however, does not coincide with the hot spots, as the non-monotonic $d_{x^{2}-y^{2}}$ gap persists even at doping when the hot spots merge on the Brillouin zone diagonals.
description: 16 pages
Polymer dispersed liquid crystals and related electro-optical devices - An overview
Creators: name: Sparavigna, Amelia Carolina
Publisher: name: Zenodo
Year: 2019
Subjects: Liquid Crystals

description: To have a polymer dispersed liquid crystal (PDLC), the liquid crystalline material is dispersed into a liquid polymer. When the polymer changes from liquid to solid, the liquid crystal becomes incompatible with the polymer and creates dispersed droplets throughout the polymeric film. The film can be processed by standard techniques to have large and environmentally robust displays and light shutters. This paper describes PDLC films and their properties in a simplified approach, suitable for teaching the devices based on such films to students of university courses.