cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
The Spectrums of Automated Privacy Policy Compliance
Creators: name: Burdon, Mark
name: Hardy, Sam
name: Klaver, Rianne
name: Yang, Nick
name: Gaunt, Sam
name: Irvine Casey, Samuel
Publisher: name: Monash University
Year: 2024
Subjects: classificationCode: 489999
subject: Other law and legal studies not elsewhere classified

description: The privacy policy has a vaunted position in the operation of information privacy law. In Australia, there is a renewed focus about the appropriate role of privacy policies and whether current legal obligations under the Privacy Act 1988 (Cth) need strengthening. However, there is a lack of research about the current state of compliance in publicly available privacy policies in Australia. Previous attempts to identify states of compliance are limited and typically involve ‘privacy sweeps’. These are qualitative exercises conducted by relevant regulators and are difficult to undertake at scale. In this paper, we examine a novel automation method for ascertaining privacy policy compliance levels at scale. We combined web scraping technologies to extract data from publicly available Australian government privacy policies with natural language processing algorithms to examine potential compliance levels across three vectors: privacy complaint processes; definitions of personal information; and collection purposes. Our findings indicate that the Commonwealth privacy policies examined are constructed in different ways and have different levels of compliance with Australian Privacy Principle 1. We conclude our paper by outlining the complex spectrums of supervision, standardisation, and intervention that arise from the use of automation tools to ascertain privacy policy compliance levels at scale.
Big jump principle for heavy-tailed random walks with correlated increments
Creators: name: Höll, Marc
name: Barkai, Eli
Publisher: name: arXiv
Year: 2021
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: The big jump principle explains the emergence of extreme events for physical quantities modelled by a sum of independent and identically distributed random variables which are heavy-tailed. Extreme events are large values of the sum and they are solely dominated by the largest summand called the big jump. Recently, the principle was introduced into physical sciences where systems usually exhibit correlations. Here, we study the principle for a random walk with correlated increments. Examples are the autoregressive model of first order and the discretized Ornstein-Uhlenbeck process both with heavy-tailed noise. The correlation leads to the dependence of large values of the sum not only on the big jump but also on the following increments. We describe this behaviour by two big jump principles, namely unconditioned and conditioned on the step number when the big jump occurs. The unconditional big jump principle is described by a correlation dependent shift between the sum and maximum distribution tails. For the conditional big jump principle, the shift depends also on the step number of the big jump.
COVIDNearYou and SurveyMonkey COVID-19 Syndromic Surveillance Survey Instrument
Creators: name: Wronski, Laura
name: Cohen, Jon
name: Chen, Jack
name: Brilliant, Joseph
name: Sewalk, Kara
name: Gertz, Autumn
name: Rader, Benjamin
name: Hawkins, Jared
name: Astley, Christina M.
name: Brownstein, John S.
Publisher: name: figshare
Year: 2021
Subjects: subject: 111706 Epidemiology
subject: FOS: Health sciences

description: Survey instrument used by SurveyMonkey and COVIDNearYou for COVID-19 Syndromic Surveillance.
Description: https://www.surveymonkey.com/newsroom/surveymonkey-and-covid-near-you/
Latest Version: https://www.surveymonkey.com/r/COVIDNearYouSurveyMonkey
Explore Results: https://public.tableau.com/profile/surveymonkey#!/vizhome/CovidNearYouSurveyMonkeyMasks/CNYSVMK?publish=yes
On the nature of ill-posedness of the forward-backward heat equation
Creators: name: Chugunova, Marina
name: Karabash, Illya M.
name: Pyatkov, Sergei G.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Analysis of PDEs (math.AP)
subject: Spectral Theory (math.SP)
subject: FOS: Mathematics
subject: 35M10, 47B10, 34L40

description: We study the Cauchy problem with periodic initial data for the forward-backward heat equation defined by the J-self-adjoint linear operator L depending on a small parameter. The problem has been originated from the lubrication approximation of a viscous fluid film on the inner surface of the rotating cylinder. For a certain range of the parameter we rigorously prove the conjecture, based on the numerical evidence, that the set of eigenvectors of the operator $L$ does not form a Riesz basis in $Ł^2 (-π,π)$. Our method can be applied to a wide range of the evolutional problems given by $PT-$symmetric operators.
description: 21 pages; Remark 5.2 added, acknowledgements added, several typos fixed
Conditions in the WR 140 wind-collision region revealed by the 1.083-micron He I line profile
Creators: name: Williams, Peredur M.
name: Varricatt, Watson P.
name: Chené, André-Nicolas
name: Corcoran, Michael F.
name: Gull, Ted R.
name: Hamaguchi, Kenji
name: Moffat, Anthony F. J.
name: Pollock, Andrew M. T.
name: Richardson, Noel D.
name: Russell, Christopher M. P.
name: Sander, Andreas A. C.
name: Stevens, Ian R.
name: Weigelt, Gerd
Publisher: name: arXiv
Year: 2021
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We present spectroscopy of the P~Cygni profile of the 1.083-micron He I line in the WC7 + O5 colliding-wind binary (CWB) WR 140 (HD 193793), observed in 2008, before its periastron passage in 2009, and in 2016-17, spanning the subsequent periastron passage. Both absorption and emission components showed strong variations. The variation of the absorption component as the O5 star was occulted by the wind-collision region (WCR) sets a tight constraint on its geometry. While the sightline to the O5 star traversed the WCR, the strength and breadth of the absorption component varied significantly on time-scales of days. An emission sub-peak was observed on all our profiles. The variation of its radial velocity with orbital phase was shown to be consistent with formation in the WCR as it swung round the stars in their orbit. Modelling the profile gave a measure of the extent of the sub-peak forming region. In the phase range 0.93-0.99, the flux in the sub-peak increased steadily, approximately inversely proportionally to the stellar separation, indicating that the shocked gas in the WCR where the line was formed was adiabatic. After periastron, the sub-peak flux was anomalously strong and varied rapidly, suggesting formation in clumps down-stream in the WCR. For most of the time, its flux exceeded the 2-10-keV X-ray emission, showing it to be a significant coolant of the shocked wind.
description: 19 pages, 14 figures, accepted for publication in the MNRAS
Demonstration of photomultiplier tube operation at 29 K
Creators: name: Nikkel, James A.
name: Lippincott, W. Hugh
name: McKinsey, Daniel N.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We describe measurements of gain, dark current, and quantum efficiency obtained while cooling a Hamamatsu R5912-02-MOD photomultiplier tube from room temperature to 29 K. We found that the PMT operated normally down to 29 K, with a reduced gain and quantum efficiency at the lowest temperatures. Furthermore, we found that the dark count rate increased as the temperature decreased. We conclude that these PMTs appear to be adequate for the requirements of the CLEAN experiment.
description: 3 pages, 5 figures
The potential for tidally heated icy and temperate moons around exoplanets
Creators: name: Scharf, Caleb A.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Moons of giant planets may represent an alternative to the classical picture of habitable worlds. They may exist within the circumstellar habitable zone of a parent star, and through tidal energy dissipation they may also offer alternative habitable zones, where stellar insolation plays a secondary, or complementary, role. We investigate the potential extent of stable satellite orbits around a set of 74 known extrasolar giant planets located beyond 0.6 AU from their parent stars - where moons should be long-lived with respect to removal by stellar tides. Approximately 60% of these giant planets can sustain satellites or moons in bands up to $\sim 0.04$ AU in width. For comparison, the Galiean satellites extend to $\sim 0.013$ AU. We investigate the stellar insolation that moons would experience for these exoplanet systems, and the implications for sublimation loss of volatiles. We find that between 15 and 27% of {\em all} known exoplanets may be capable of harboring small, icy, moons. In addition, some 22-28% of all known exoplanets could harbor moons within a ``sublimation zone'', with insolation temperatures between 273 K and 170 K. A simplified energy balance model is applied to the situation of temperate moons, maintained by a combination of stellar insolation and tidal heat flow. We demonstrate that large moons ($>0.1 $M$_{\oplus}$), at orbital radii commensurate with those of the Galilean satellites, could maintain temperate, or habitable, surface conditions during episodes of tidal heat dissipation of the order 1-100 times that currently seen on Io. (Abridged).
description: 28 pages, 8 Figures, AASTex, Accepted for publication in the Astrophysical Journal
Action of halothane on large-conductance, calcium-activated potassium channels in rat cerebrovascular smooth muscle cells
Creators: name: Yan, Hong
Publisher: name: University of British Columbia
Year: 2008

description: Halothane anesthesia is associated with increased cerebral blood flow and dilatation of cerebral vessels. The mechanisms which underlie this drug action are presently unclear. Cerebrovascular tone is probably regulated in part by the opening of large conductance, Ca²⁺-activated potassium channels (BK channels) in cerebral artery smooth muscle cells. The present experiments utilized extra cellular patch clamp techniques to investigate whether clinically relevant concentrations of halothane directly alter the biophysical properties of these channels. Cerebrovascular smooth muscle cells (CVSMCs) were dispersed from the basilar, middle, posterior communicating, and posterior cerebral arteries of adult Wistar rats using collagenase and trypsin and maintained in vitro for 48 hrs prior to use. Recordings were made from isolated inside-out membrane patches at room temperature (21-23°C) using a List EPC-5 patch clamp amplifier. Under control conditions, amplitude distributions of single BK channel currents were well described by a single Gaussian term. This behavior was maintained during exposure to halothane. The mean conductance of single BK channels, which was 194 ± 6.1 pS in symmetrical 140 mM K⁺ solutions, was unchanged by application of halothane at any of the concentrations tested (0.5, 1.6, 2.8 mM). Halothane caused a dose-dependent, reversible decrease in the open probability (Po) of BK channels. Halothane reduced Po by 14 % and 55 % on application of 1.6 mM (n=11) and 2.8 mM (n=11) halothane respectively, while 0.5 mM halothane had no significant effect on the open probability (n=7). Kinetic analysis of BK channel currents showed that halothane altered the gating of these channels. Halothane reduced the mean channel open time by 23 % and 56 %, and increased the mean channel closed time by factors of 2.1 and 9.3 when applied at concentrations of 1.6 mM or of 2.8 mM, respectively. The inhibitory effect of halothane on BK channel function is unlikely to result solely from the fluidization of membrane lipids by the anesthetic, since this would probably increase the channel opening probability. Rather, halothane appears to alter BK channel function by binding to hydrophobic domains within the channel protein, or by interfering with protein-lipid interactions in the membrane. A halothane-induced decrease in the open probability of BK channels in CVSMCs might be expected to reduce outward potassium current, resulting in enhanced contraction of blood vessel walls. Hence, the direct inhibitory effects of halothane on BK channels obtained from cerebral artery cells cannot explain the marked cerebral vasodilation caused by the anesthetic. This vasodilation must therefore result from other drug actions on vascular smooth muscle cells, which include reduction in calcium influx through voltage-dependent calcium channels, decreased accumulation of intracellular free calcium, and lowered sensitivity of contractile proteins to calcium.
Anomalous spin-dependent behaviour of one-dimensional subbands
Creators: name: Graham, A. C.
name: Pepper, M.
name: Simmons, M. Y.
name: Ritchie, D. A.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We report a new electron interaction effect in GaAs/AlGaAs quantum wires. Using DC-bias spectroscopy, we show that large and abrupt changes occur to the energies of spin-down (lower energy) states as they populate. The effect is not observed for spin-up energy states. At B=0, interactions have a pronounced effect, in the form of the well-known 0.7 Structure. However, our new results show that interactions strongly affect the energy spectrum at all magnetic fields, from 0 to 16T, not just in the vicinity of the 0.7 Structure.
description: 4 pages, 2 figures
101 Trojans: a tale of period bimodality, binaries, and extremely slow rotators from K2 photometry
Creators: name: Kalup, Csilla E.
name: Molnár, László
name: Kiss, Csaba
name: Szabó, Gyula M.
name: Pál, András
name: Szakáts, Róbert
name: Sárneczky, Krisztián
name: Vinkó, József
name: Szabó, Róbert
name: Kecskeméthy, Viktória
name: Kiss, László L.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: Various properties of Jovian trojan asteroids such as composition, rotation periods, and photometric amplitudes, or the rate of binarity in the population can provide information and constraints on the evolution of the group and of the Solar System itself. Here we present new photometric properties of 45 Jovian trojans from the K2 mission of the Kepler space telescope, and present phase-folded light curves for 44 targets, including (11351) Leucus, one of the targets of the Lucy mission. We extend our sample to 101 asteroids with previous K2 Trojan measurements, then compare their combined amplitude- and frequency distributions to other ground-based and space data. We show that there is a dichotomy in the periods of Trojans with a separation at $\sim 100$ hr. We find that 25% of the sample are slow rotators (P$\geq$30 hr), which excess can be attributed to binary objects. We also show that 32 systems can be classified as potential detached binary systems. Finally, we calculate density and rotation constraints for the asteroids. Both the spin barrier and fits to strengthless ellipsoid models indicate low densities and thus compositions similar to cometary and TNO populations throughout the sample. This supports the scenario of outer Solar System origin for Jovian trojans.
description: 25 pages, 19 figures, accepted for publication in ApJS
Επανασχεδιασμός επιχειρηματικών διεργασιών οικονομικού και διαχείρισης ανθρωπίνων πόρων με χρήση ERP ανοιχτού κώδικα
Creators: name: Κουντουρίδου, Νίκη Ευθυμίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2016
Subjects: Ανοιχτός κώδικας
Διεργασίες
ΕΛ/ΛΑΚ
Open Source
Odoo
Modules

description: Τα συστήματα Διαχείρισης Επιχειρησιακών Πόρων, γνωστά ως ERP, παρουσιάζονται ως μία επιχειρηματική λύση αυτοματοποίησης των λειτουργιών της επιχείρησης με τέτοιο τρόπο ώστε να παρέχεται πληροφόρηση σε όλα τα επίπεδα του οργανισμού. Με αυτό τον τρόπο εξυπηρετούν τον σκοπό δημιουργίας τους. Καθώς όμως όλο και περισσότερες επιχειρήσεις καλούνται να εφαρμόσουν ένα πληροφοριακό σύστημα προκειμένου να ανταπεξέλθουν στον ανταγωνισμό, το κόστος απόκτησης και συντήρησης ενός πληροφοριακού συστήματος γίνεται όλο και πιο δύσκολο δεδομένου των δυσμενών οικονομικών συνθηκών που επικρατούν. Η γενικότερη τάση, η οποία κερδίζει έδαφος με την πάροδο των ετών, θέλει την στροφή των χρηστών και των επιχειρήσεων προς τη χρήση λογισμικού Ανοιχτού Κώδικα λόγω της διαφάνειας του λογισμικού και του μικρότερου κόστους εφαρμογής. Αρκετές επιφανείς επιχειρήσεις έχουν καταφύγει στη λύση που παρέχει ο Ανοιχτός Κώδικας με επιτυχία καταρρίπτοντας τον μύθο που θέλει ο βαθμός χρηστικότητας ενός λογισμικού να έχει άμεση σχέση με το κόστος απόκτησής του και την εμπορικότητά του. Η παρούσα διπλωματική εξετάζει το γεγονός υιοθέτησης ενός συγκεκριμένου ERP συστήματος Ανοιχτού Κώδικα και εφαρμογής του σε μία ελληνική υπαρκτή βιομηχανία στα πλαίσια μείωσης των εξόδων της επιχείρησης, ελεύθερης πρόσβασης στον πηγαίο κώδικα για περαιτέρω ανάπτυξη του συστήματος με μικρότερο κόστος και ενίσχυσης της τοπικής αγοράς πληροφορικής αντί των ελάχιστων μεγάλων εταιρειών κατασκευής λογισμικού.
description: The Enterprise Resource Planning systems, known as ERPs, are presented as a business automated solution for the company’s operations in such a way as to provide information to all levels of the entire organization. In this way, they fulfill the purpose of their creation. But as more and more businesses are obliged to implement an information system to cope with the competition, the cost of acquisition and maintenance of the information system becomes more difficult because of the unfavorable economic conditions. The general trend, which is gaining ground over the years, expects to shift users and businesses to use the Open Source Software because of the transparency of software and less expensive implementation. Several leading companies have resorted to the solution provided by the Open Source successfully dispelling the myth that wants the usability degree of software to be directly related to the acquisition cost and its marketability. This thesis examines the fact of adopting a particular ERP open source system and applying it in an existed Greek industry in the context of reducing the costs of the operation, free access to the source code for further development of the system at a lower cost and enhance local IT market instead of minimum major software manufacturing companies.
DEP bulletin 1990 - July - December
Creators: name: No Name Supplied
Publisher: name: No Publisher Supplied
Year: 1990

description: The DEP bulletin is a semi-monthly publication of the New Jersey Department of Environmental Protection. It contains a list of construction permit applications recently filed or acted upon by the Department along with a calendar of events of interest, a schedule of public hearings, and Environmental Impact Statements acted upon during the period.
Vacuum Boundary Effects
Creators: name: Asorey, M.
name: Munoz-Castaneda, J. M.
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The effect of boundary conditions on the vacuum structure of quantum field theories is analysed from a quantum information viewpoint. In particular, we analyse the role of boundary conditions on boundary entropy and entanglement entropy. The analysis of boundary effects on massless free field theories points out the relevance of boundary conditions as a new rich source of information about the vacuum structure. In all cases the entropy does not increase along the flow from the ultraviolet to the infrared.
description: 10 pages
Replicator equations induced by microscopic processes in nonoverlapping population playing bimatrix games
Creators: name: Mukhopadhyay, Archan
name: Chakraborty, Sagar
Publisher: name: arXiv
Year: 2021
Subjects: subject: Populations and Evolution (q-bio.PE)
subject: Biological Physics (physics.bio-ph)
subject: FOS: Biological sciences
subject: FOS: Physical sciences

description: This paper is concerned with exploring the microscopic basis for the discrete versions of the standard replicator equation and the adjusted replicator equation. To this end, we introduce frequency-dependent selection -- as a result of competition fashioned by game-theoretic consideration -- into the Wright--Fisher process, a stochastic birth-death process. The process is further considered to be active in a generation-wise nonoverlapping finite population where individuals play a two-strategy bimatrix population game. Subsequently, connections among the corresponding master equation, the Fokker--Planck equation, and the Langevin equation are exploited to arrive at the deterministic discrete replicator maps in the limit of infinite population size.
Towards augmented reality for corporate training
Creators: name: Martins, Bruno R.
name: Jorge, Joaquim A.
name: Zorzal, Ezequiel R.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Human-Computer Interaction (cs.HC)
subject: FOS: Computer and information sciences

description: Corporate training relates to employees acquiring essential skills to operate equipment or effectively performing required tasks both competently and safely. Unlike formal education, training can be incorporated into the task workflow and performed during working hours. Increasingly, organizations adopt different technologies to develop both individual skills and improve their organization. Studies indicate that Augmented Reality (AR) is quickly becoming an effective technology for training programs. This systematic literature review (SLR) aims to screen works published on AR for corporate training. We describe AR training applications, discuss current challenges, literature gaps, opportunities, and tendencies of corporate AR solutions. We structured a protocol to define keywords, the semantics of research, and databases used as sources of this SLR. From a primary analysis, we considered 1952 articles in the review for qualitative synthesis. We selected 60 among the selected articles for this study. The survey shows a large number of 41.7% of applications focused on automotive and medical training. Additionally, 20% of selected publications use a camera-display with a tablet device, while 40% refer to head-mounted-displays, and many surveyed approaches (45%) adopt marker-based tracking. Results indicate that publications on AR for corporate training increased significantly in recent years. AR has been used in many areas, exhibiting high quality and provides viable approaches to On-The-Job training. Finally, we discuss future research issues related to increasing relevance regarding AR for corporate training.
description: This paper is published in the Journal of Interactive Learning Environments (Routledge) 2021
Η επίδραση της διανομής του εισοδήματος στην οικονομική μεγέθυνση. Το κλασικό υπόδειγμα.
Creators: name: Μεριβάνη, Πολυξένη Αγγελου
Publisher: name: Aristotle University of Thessaloniki
Year: 2016
Subjects: διανομή εισοδήματος
οικονομική μεγέθυνση
κλασικοί
income distribution
economic growth
classical

description: Η παρούσα εργασία πραγματεύεται τη λειτουργική και την προσωπική διανομή του εισοδήματος και την επίπτωση που έχει στην οικονομική μεγέθυνση. Στο πρώτο μέρος της εργασίας παρουσιάζεται το θεωρητικό πλαίσιο μέσα στο οποίο οι κλασικοί οικονομολόγοι και ο Marx προσέγγισαν το ζήτημα της διανομής του εισοδήματος. Στο δεύτερο μέρος της εργασίας γίνεται αναφορά στη διανομή του εισοδήματος μεταξύ των ατόμων και στις ανισότητες εντός των εισοδημάτων της εργασίας και του κεφαλαίου, αλλά και τις συνολικές εισοδηματικές ανισότητες. Στη συνέχεια ακολουθεί εμπειρική μελέτη μέσω γραφικών αναπαραστάσεων, η οποία εξετάζει τη λειτουργική διανομή του εισοδήματος για τη Γερμανία, τη Γαλλία, την Ιταλία, την Ελλάδα και την Πορτογαλία για τη χρονική περίοδο 1960-2016. Αρχικά, η διανομή με βάση την παραγωγή εξετάζεται ξεχωριστά για κάθε χώρα, ενώ στη συνέχεια γίνεται σύγκριση μεταξύ τους. Κατόπιν παρουσιάζεται η προσωπική διανομή του εισοδήματος στις ίδιες χώρες για την περίοδο 2003-2014 με τη χρήση του δείκτη Gini και συγκρίνεται η εξέλιξη των εισοδηματικών ανισοτήτων. Τέλος, παρουσιάζονται τα συμπεράσματα και οι προτάσεις για το δρόμο που πρέπει να ακολουθήσει η διανεμητική πολιτική στην Ευρωζώνη.
description: This paper deals with functional and personal income distribution and its effect on economic growth. In the first half, the theoretical framework on income distribution by classical economists and Marx is presented. The second half refers to the distribution of income among individuals and the inequality between incomes gained from labor and capital, as well as total income inequality. The empirical study in the form of graphical representation considers the functional income distribution for Germany, France, Italy, Greece and Portugal for the time period of 1960-2016. Functional distribution is examined for every country and compared. Also, personal income distribution is examined for the time period of 2003-2014 using the Gini index. Finally, recommendations are made regarding the distributive policy the Euro zone should follow in the next few years.
Weak universality, bicritical points and reentrant transitions in the critical behaviour of a mixed spin-1/2 and spin-3/2 Ising model on the union jack (centered square) lattice
Creators: name: Strecka, Jozef
Publisher: name: arXiv
Year: 2006
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: The mixed spin-1/2 and spin-3/2 Ising model on the union jack lattice is solved by establishing a mapping correspondence with the eight-vertex model. It is shown that the model under investigation becomes exactly soluble as a free-fermion eight-vertex model when the parameter of uniaxial single-ion anisotropy tends to infinity. Under this restriction, the critical points are characterized by critical exponents from the standard Ising universality class. In a certain subspace of interaction parameters, which corresponds to a coexistence surface between two ordered phases, the model becomes exactly soluble as a symmetric zero-field eight-vertex model. This surface is bounded by a line of bicritical points having interaction-dependent critical exponents that satisfy a weak universality hypothesis.
description: 8 pages, 8 figures
Excited Thomas-Efimov levels in ultracold gases
Creators: name: Lee, Mark D.
name: Koehler, Thorsten
name: Julienne, Paul S.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: Since the early days of quantum physics, the complex behavior of three interacting particles has been the subject of numerous experimental and theoretical studies. In a recent Letter to Nature, Kraemer et al. [Nature (London) 440, 315 (2006)] report on experimental ``evidence for Efimov quantum states'' in an ultracold gas of cesium atoms. Such quantum states refer to an infinite series of energy levels of three identical Bose particles, accumulating at the threshold for dissociation as the scattering length of each pair is tuned to infinity. Whereas the existence of a single Efimov state has been predicted for three helium atoms, earlier experimental studies concluded that this elusive state had not been found. In this paper we show by an intuitive argument and full numerical calculations that the helium and cesium experiments actually provide evidence of the same, ground state of this trimer spectrum, which the helium experimentalists and pioneering theoretical studies had not associated with Efimov's effect. Unlike the helium trimer, the observed 133Cs_3 resonance refers to a Borromean molecular state. We discuss how as yet unobserved, excited Efimov quantum states might be detected in ultracold gases of 85Rb and of 133Cs at magnetic field strengths in the vicinity of 0.08 T (800 G).
description: 17 pages, 10 eps figures
TCN: Table Convolutional Network for Web Table Interpretation
Creators: name: Wang, Daheng
name: Shiralkar, Prashant
name: Lockard, Colin
name: Huang, Binxuan
name: Dong, Xin Luna
name: Jiang, Meng
Publisher: name: arXiv
Year: 2021
Subjects: subject: Information Retrieval (cs.IR)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: Information extraction from semi-structured webpages provides valuable long-tailed facts for augmenting knowledge graph. Relational Web tables are a critical component containing additional entities and attributes of rich and diverse knowledge. However, extracting knowledge from relational tables is challenging because of sparse contextual information. Existing work linearize table cells and heavily rely on modifying deep language models such as BERT which only captures related cells information in the same table. In this work, we propose a novel relational table representation learning approach considering both the intra- and inter-table contextual information. On one hand, the proposed Table Convolutional Network model employs the attention mechanism to adaptively focus on the most informative intra-table cells of the same row or column; and, on the other hand, it aggregates inter-table contextual information from various types of implicit connections between cells across different tables. Specifically, we propose three novel aggregation modules for (i) cells of the same value, (ii) cells of the same schema position, and (iii) cells linked to the same page topic. We further devise a supervised multi-task training objective for jointly predicting column type and pairwise column relation, as well as a table cell recovery objective for pre-training. Experiments on real Web table datasets demonstrate our method can outperform competitive baselines by +4.8% of F1 for column type prediction and by +4.1% of F1 for pairwise column relation prediction.
Dynamical SUSY Breaking at Meta-Stable Minima from D-branes at Obstructed Geometries
Creators: name: Franco, Sebastian
name: Uranga, Angel M .
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study the existence of long-lived meta-stable supersymmetry breaking vacua in gauge theories with massless quarks, upon the addition of extra massive flavors. A simple realization is provided by a modified version of SQCD with N_{f,0} < N_c massless flavors, N_{f,1} massive flavors and additional singlet chiral fields. This theory has local meta-stable minima separated from a runaway behavior at infinity by a potential barrier. We find further examples of such meta-stable minima in flavored versions of quiver gauge theories on fractional branes at singularities with obstructed complex deformations, and study the case of the dP_1 theory in detail. Finally, we provide an explicit String Theory construction of such theories. The additional flavors arise from D7-branes on non-compact 4-cycles of the singularity, for which we find a new efficient description using dimer techniques.
description: 57 pages, 27 figures. References and comment about SO and Sp gauge groups added
Συστήματα διάχυσης ιατρικής πληροφορίας
Creators: name: Ξανθοπούλου, Μαρία Μιχαήλ
Publisher: name: Aristotle University of Thessaloniki
Year: 2016
Subjects: Πρωτόκολλα ασύρματης διάχυσης δεδομένων
Τοπικότητα ζήτησης
Απόδοση του συστήματος
Wireless Dissemination Protocols
Locality on demand
System performance

description: Στην παρούσα διπλωματική εργασία πρότερο στόχο μας αποτελεί η επισκόπηση της περιοχής των πρωτοκόλλων ασύρματης διάχυσης δεδομένων. Η διάχυση δεδομένων πραγματεύεται την επικοινωνία του κόμβου συλλογής δεδομένων και των αισθητήρων . Το κύριο πρόβλημα της διάχυσης δεδομένων είναι η δρομολόγηση των δεδομένων στον κόμβο συλλογής. Σε περιπτώσεις δε, όπου έχουμε κινητούς κόμβους συλλογής , τότε το πρόβλημα της διάχυσης δεδομένων μετατρέπεται σε ένα σύνθετο πρόβλημα εύρεσης τοποθεσίας και δρομολόγησης, όπου οι κόμβοι του δικτύου μοιράζονται κάποιους κοινούς περιορισμούς. Υπάρχει μια πληθώρα εργασιών στις οποίες παρουσιάζονται αποδοτικά πρωτόκολλα δρομολόγησης. Τα πρωτόκολλα αυτά εφαρμόζονται σε συστήματα ασύρματης εκπομπής δεδομένων, τα οποία έχουν τη δυνατότητα να χρησιμοποιηθούν στο πεδίο της ιατρικής (διάχυση ιατρικής πληροφορίας). Γενικευμένοι στόχοι της εφαρμογής των πρωτοκόλλων ασύρματης διάχυσης αποτελούν η αύξηση επίδοσης του συστήματος, διότι όντας πιο αποδοτικό εξυπηρετεί και πιο αποτελεσματικά τις ανάγκες των εμπλεκομένων, και γενικότερα την ορθή διαχείριση των πόρων του συστήματος. Προς τούτη την κατεύθυνση, ο προτεινόμενος μηχανισμός στα πλαίσια της παρούσας εργασίας εκμεταλλεύεται την τοπικότητα ζήτησης προκειμένου να αυξηθεί η απόδοση της ασύρματης διάχυσης δεδομένων.
description: In this work our former objective is to provide an overview of the wireless data dissemination protocols area. The dissemination of data deals with the communication of data collection node and sensors. The main problem of the dissemination of data is the data routing node in the collection. In cases, where there are moving collection nodes, the problem of diffusion data is converted to a complex problem location finding and routing where nodes share some common limitations. There is a plethora of works which are presented efficiently routing protocols. These protocols are applicable to wireless data transmission systems, which are able to be used in medicine (medical information diffusion field). Generalized objectives of the implementation of wireless diffusion protocols constitute the system performance increase, because being more efficient and more effectively serve the needs of those involved, and more generally the sound management of system resources. To this end direction, the proposed mechanism in the context of this paper exploits the demand locality in order to increase efficiency of wireless data dissemination.
Study of two-subband population in Fe-doped AlxGa1-xN/GaN heterostructures by persistent photoconductivity effect
Creators: name: Lo, Ikai
name: Tsai, J. K.
name: Gau, M. H.
name: Chen, Y. L.
name: Chang, Z. J.
name: Wang, W. T.
name: Chiang, J. C.
name: Wang, K. R.
name: Chen, Chun-Nan
name: Aggerstam, T.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The electronic properties of Fe-doped Al0.31Ga0.69N/GaN heterostructures have been studied by Shubnikov-de Haas measurement. Two subbands of the two-dimensional electron gas in the hetero-interface were populated. After the low temperature illumination, the electron density increases from 11.99 x 1012 cm-2 to 13.40 x 1012 cm-2 for the first subband and from 0.66 x 1012 cm-2 to 0.94 x 1012 cm-2 for the second subband. The persistent photoconductivity effect (~13% increase) is mostly attributed to the Fe-related deep-donor level in GaN layer. The second subband starts to populate when the first subband is filled at a density n1 = 9.40 x 1012 cm-2. We calculate the energy separation between the first and second subbands to be 105 meV.
Identification and characterization of a novel neurotrophic factor secreted by a mouse Schwann cell line
Creators: name: Xu, Ren Y.
Publisher: name: University of British Columbia
Year: 2008

description: During development, neurotrophic factors regulate morphologic and functional differentiation in addition to their role as regulators of neuronal survival. Schwann cells are the major glial elements in the peripheral nervous system and, therefore, could play a major functional role in supporting neuronal differentiation and survival in nervous system. Here, we have characterized a neurotrophic factor secreted by MS1 cells from an immortalized Schwann cell line. In our mesencephalic culture system, a 2.9-fold increased survival of TH+ neurons at day 5 and a 1.9-fold increase of dopamine uptake have been observed when the cells were treated with MS1 conditioned medium (MCM). This trophic effect is more potent than other known trophic factors for dopaminergic neurons such as bFGF, insulin, and EGF. The characteristics of this factor are different from all other known neurotrophic factors in vitro. Partial purification of MCM has shown that the molecular weight of this factor is between 17 kDa and 30 kDa. It is a heat sensitive, non-heparin binding, protease digestible protein-like molecule. MCM did not have any mitogenic effects on astrocytes in our culture, nor did it have survival effects on 1-day-old dorsal root ganglia or E13 spinal cord culture. Thus, we conclude that the trophic factor in MCM is a novel and specific survival factor for dopaminergic neurons.
Standard-Model Condensates and the Cosmological Constant
Creators: name: Brodsky, Stanley J.
name: Shrock, Robert
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Astrophysics (astro-ph)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We suggest a solution to the problem of some apparently excessive contributions to the cosmological constant from Standard-Model condensates.
Weak universal critical behaviour of the mixed spin-(1/2, S) Ising model on the union jack (centered square) lattice: integer versus half-odd-integer spin-S case
Creators: name: Strecka, Jozef
name: Canova, Lucia
name: Dely, Jan
Publisher: name: arXiv
Year: 2006
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: The mixed spin-(1/2, S) Ising model on the union jack (centered square) lattice is investigated by establishing the mapping relationship with its corresponding eight-vertex model. An interplay between the nearest-neighbour interaction, the competing next-nearest-neighbour interaction and the single-ion anisotropy gives rise to a rather complex critical behaviour displayed in the reentrant phase transitions, the weak universal critical behaviour, as well as, a presence of first- and second-order phase transitions. The most interesting finding to emerge from the present study relates to a variation of the weak-universal critical exponents along the line of bicritical points, which is being twice as large for the mixed spin-(1/2, S) systems with the integer spin-S atoms as for the ones with the half-odd-integer spin-S atoms.
description: 9 pages, 12 figures
Revamping Storage Class Memory With Hardware Automated Memory-Over-Storage Solution
Creators: name: Zhang, Jie
name: Kwon, Miryeong
name: Gouk, Donghyun
name: Koh, Sungjoon
name: Kim, Nam Sung
name: Kandemir, Mahmut Taylan
name: Jung, Myoungsoo
Publisher: name: arXiv
Year: 2021
Subjects: subject: Hardware Architecture (cs.AR)
subject: FOS: Computer and information sciences

description: Large persistent memories such as NVDIMM have been perceived as a disruptive memory technology, because they can maintain the state of a system even after a power failure and allow the system to recover quickly. However, overheads incurred by a heavy software-stack intervention seriously negate the benefits of such memories. First, to significantly reduce the software stack overheads, we propose HAMS, a hardware automated Memory-over-Storage (MoS) solution. Specifically, HAMS aggregates the capacity of NVDIMM and ultra-low latency flash archives (ULL-Flash) into a single large memory space, which can be used as a working or persistent memory expansion, in an OS-transparent manner. HAMS resides in the memory controller hub and manages its MoS address pool over conventional DDR and NVMe interfaces; it employs a simple hardware cache to serve all the memory requests from the host MMU after mapping the storage space of ULL-Flash to the memory space of NVDIMM. Second, to make HAMS more energy-efficient and reliable, we propose an "advanced HAMS" which removes unnecessary data transfers between NVDIMM and ULL-Flash after optimizing the datapath and hardware modules of HAMS. This approach unleashes the ULL-Flash and its NVMe controller from the storage box and directly connects the HAMS datapath to NVDIMM over the conventional DDR4 interface. Our evaluations show that HAMS and advanced HAMS can offer 97% and 119% higher system performance than a software-based hybrid NVDIMM design, while consuming 41% and 45% lower system energy, respectively.
Neutralino Dark Matter in the Left-Right Supersymmetric Model
Creators: name: Demir, Durmus A.
name: Frank, Mariana
name: Turan, Ismail
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We study the neutralino sector of the left-right supersymmetric model. In addition to the possibilities available in the minimal supersymmetric model, the neutralino states can be superpartners of the U(1)_{B-L} gauge boson, the neutral SU(2)_R neutral gauge boson, or of the Higgs triplets. We analyze neutralino masses and determine the parameter regions for which the lightest neutralino can be one of the new pure states. We then calculate the relic density of the dark matter for each of these states and impose the constraints coming from the rho parameter, the anomalous magnetic moment of the muon, b -> s gamma, as well as general supersymmetric mass bounds. The lightest neutralino can be the bino, or the right-wino, or the neutral triplet higgsino, all of which have different couplings to the standard model particles from the usual neutralinos. A light bino satisfies all the experimental constraints and would be the preferred dark matter candidate for light supersymmetric scalar masses, while the right-wino would be favored by intermediate supersymmetric mass scales. The neutral triplet Higgs fermion satisfies the experimental bounds only in a small region of the parameter space, for intermediate to heavy supersymmetric scalar masses.
description: 31 pages, 8 figures, one table and references added, to be published in Phys. Rev. D
Μοντελοποίηση ικανοτήτων για τη διαχείριση των ανθρώπινων πόρων στον τραπεζικό τομέα: Κατασκευή μοντέλου με βάση την πελατοκεντρική στρατηγική.
Creators: name: Τριανταφύλλου, Αννα Αντωνίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2016
Subjects: Μοντελοποίηση ικανοτήτων
Αξιολόγηση ανθρώπινων πόρων
Τραπεζική πελατοκεντρική στρατηγική
Competency modeling
Human resource assessment
Banking customer-centric strategy

description: Η πραγματοποίηση έγκυρων εκτιμήσεων σχετικά με την απόδοση του Ανθρώπινου Δυναμικού αποτελεί βασική προϋπόθεση για τη διαμόρφωση και υλοποίηση των κατάλληλων επιχειρηματικών στρατηγικών. Η μοντελοποίηση ικανοτήτων αποτελεί το πιο σημαντικό βήμα για την επίτευξη αυτού του στόχου, καθώς πίσω από όλα τα σημεία του μοντέλου ικανοτήτων ενός οργανισμού βρίσκεται ένα σαφές στρατηγικό όραμα. Η ανάπτυξη ενός τέτοιου εργαλείου αξιολόγησης αποτελεί βασικό παράγοντα επιτυχίας, καθώς εξασφαλίζει την τοποθέτηση των κατάλληλων ανθρώπων στις κατάλληλες θέσεις. Το παρόν πόνημα αποσκοπεί στην ενημέρωση του αναγνώστη σχετικά με τη μοντελοποίηση ικανοτήτων και τη χρησιμότητά της, καθώς και στην ανάδειξη μιας δυναμικής προσέγγισης αξιολόγησης για τον τραπεζικό τομέα. Το προτεινόμενο μοντέλο ικανοτήτων, το οποίο αντικατοπτρίζει τη στρατηγική των ηγετών του κλάδου και εκφράζει την οργανωτική αλλαγή, δίνει το έναυσμα για την εκπαίδευση και την ανάπτυξη των εργαζομένων ούτως ώστε να επιτευχθεί η ευθυγράμμιση με τους νέους στόχους και το νέο στρατηγικό προσανατολισμό.
description: Conducting valid assessments of the performance of human resources is a basic prerequisite for the formulation and implementation of appropriate business strategies. Competency modeling is the most important step in order to achieve this objective, since a clear strategic vision lies behind of all the areas of a competency model of an organization. The development of such an evaluation tool is a key factor for success as it ensures the placement of the right people in the right positions. This project aims to inform the reader about the competency modeling and its usefulness, as well as to give prominence to a dynamic evaluation approach for the banking sector. The proposed competency model, which reflects the strategy of the industry leaders and expresses organisational change, gives rise to employee training and development in order to achieve alignment with new goals and strategic orientation.
Crossover behavior and multi-step relaxation in a schematic model of the cut-off glass transition
Creators: name: Greenall, M. J.
name: Cates, M. E.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We study a schematic mode-coupling model in which the ideal glass transition is cut off by a decay of the quadratic coupling constant in the memory function. (Such a decay, on a time scale tau_I, has been suggested as the likely consequence of activated processes.) If this decay is complete, so that only a linear coupling remains at late times, then the alpha relaxation shows a temporal crossover from a relaxation typical of the unmodified schematic model to a final strongly slower-than-exponential relaxation. This crossover, which differs somewhat in form from previous schematic models of the cut-off glass transition, resembles light-scattering experiments on colloidal systems, and can exhibit a `slower-than-alpha' relaxation feature hinted at there. We also consider what happens when a similar but incomplete decay occurs, so that a significant level of quadratic coupling remains for t>>tau_I. In this case the correlator acquires a third, weaker relaxation mode at intermediate times. This empirically resembles the beta process seen in many molecular glass formers. It disappears when the initial as well as the final quadratic coupling lies on the liquid side of the glass transition, but remains present even when the final coupling is only just inside the liquid (so that the alpha relaxation time is finite, but too long to measure). Our results are suggestive of how, in a cut-off glass, the underlying `ideal' glass transition predicted by mode-coupling theory can remain detectable through qualitative features in dynamics.
description: 14 pages revtex inc 10 figs; submitted to pre
Gaussian heat kernel upper bounds via Phragmén-Lindelöf theorem
Creators: name: Coulhon, Thierry
name: Sikora, Adam
Publisher: name: arXiv
Year: 2006
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: 35K05, 58J35

description: We prove that in presence of $L^2$ Gaussian estimates, so-called Davies-Gaffney estimates, on-diagonal upper bounds imply precise off-diagonal Gaussian upper bounds for the kernels of analytic families of operators on metric measure spaces.