cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Tremors and Klinefelter’s Syndrome
Creators: name: Rabin, Marcie L
name: Mittal, Shivam Om
name: Jabbari, Bahman
Publisher: name: Tremor and Other Hyperkinetic Movements
Year: 2015

description: Background: Klinefelter’s syndrome (KS) has been associated with tremor, but reports on tremor phenomenology and treatment are limited. Case Reports: Patient 1 is a 17‐year‐old male with a dystonic tremor treated with deep brain stimulation (DBS). Patient 2 is a 57‐year‐old male with a predominant left hand resting tremor and dystonic features. Discussion: Our cases suggest that the tremor in patients with KS may be dystonic in nature. Patient 1 is also the third reported case of successful treatment with DBS. These cases have implications for elucidating the underlying neurobiological mechanism of tremor and identifying treatment options.
description: Tremor and Other Hyperkinetic Movements, Tremor and Other Hyperkinetic Movements
Nine Years with Munchausen Syndrome: A Case of Psychogenic Dystonia
Creators: name: Cakmak, Mirac A.
name: Sahin, Sevki
name: Cinar, Nilgun
name: Tiyekli, Utkan
name: Karsidag, Sibel
Publisher: name: Tremor and Other Hyperkinetic Movements
Year: 2015

description: Background: Munchausen syndrome presenting with psychogenic dystonia is a rare condition. Phenomenology Shown: A psychogenic dystonia case presenting with an acute onset of retrocollis, lower limb dystonia and bizarre gait was diagnosed as Munchausen syndrome. Educational Value: Recognizing psychogenic dystonia avoids unnecessary investigations and provides successful treatment.
description: Tremor and Other Hyperkinetic Movements, Tremor and Other Hyperkinetic Movements
Upper bound on our knowledge about noncommuting observables for a qubit system
Creators: name: Kurotani, Yuji
name: Sagawa, Takahiro
name: Ueda, Masahito
Publisher: name: arXiv
Year: 2007
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: A trade-off relation on our knowledge about two noncommuting observables of a qubit system in simultaneous measurement is formulated. The obtained inequality offers a quantitative information-theoretic representation of Bohr's principle of complementarity, and can be interpreted as a trade-off relation on the asymptotic accuracy of the maximum-likelihood estimation of the probability distributions of observables.
description: 4 pages, 1 figure
Construction of Lorentz Invariant Amplitudes from Rest Frame Wave Functions in HQET
Creators: name: Matsuki, Takayuki
name: Seo, Kohichi
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: Succeeding in predicting 0^+ and 1^+ states of D and D_s heavy mesons by our semi-relativistic quark potential model, we examine a method how to construct Lorentz-invariant scattering amplitudes and/or decay widths and develop a formulation to calculate Lorentz-boosted ones given the rest frame wave functions in our model. To show how effective this is, we apply the formulation to calculate the semileptonic weak form factors out of the rest frame wave functions of heavy mesons and numerically calculate the dynamical 1/m_Q corrections to those for the process B-bar -> D^{(*)}\ellνbased on our model for heavy mesons. It is shown that nonvanishing expressions for ρ_1(ω)=ρ_2(ω) and ρ_3(ω)=ρ_4(ω)=0 are obtained in a special Lorentz frame, where ρ_i(ω) are the parameters used in the Neubert-Rieckert decomposition of form factors. Various values of form factors are estimated, which are compatible with recent experimental data as well as other theoretical calculations.
description: 28 pages, 4 Tables
The initial boundary value problem and quasi-local Hamiltonians in General Relativity
Creators: name: An, Zhongshan
name: Anderson, Michael T.
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Differential Geometry (math.DG)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We discuss relations between the initial boundary value problem (IBVP) and quasi-local Hamiltonians in GR. The latter have traditionally been based on Dirichlet boundary conditions, which however are shown here to be ill-posed for the IBVP. We present and analyse several other choices of boundary conditions which are better behaved with respect to the IBVP and carry out a corresponding Hamiltonian analysis, using the framework of the covariant phase space method.
description: 22 pages
Αυτοματοποίηση συστημάτων ηλεκτρικής ενέργειας: σχεδιασμός και προσομοίωση συστήματος για τον εντοπισμό-απομόνωση σφαλμάτων γραμμής και την αποκατάσταση της ηλεκτροδότησης σε δίκτυα διανομής μέσης τάσης με την εφαρμογή μεθόδων διανεμημένης τεχνητής νοημοσύνης
Creators: name: Μπαξεβάνος, Ιωάννης Σ.
Publisher: name: Aristotle University of Thessaloniki
Year: 2006
Subjects: Διανεμημένη τεχνητή νοημοσύνη
Υπόγεια πρωτεύοντα δίκτυα διανομής
Multi-agent systems
Underground primary distribution networks

description: Οι διαδικασίες διαχείρισης των δικτύων διανομής και αποκαταστάσεις της ηλεκτροδότησης μετά από το σφάλμα, αποτελούν κρισιμότατα θέματα υπό το πρίσμα της ποιότητας και αξιοπιστίας της παρεχόμενης ενέργειας στους καταναλωτές. Στην παρούσα διδακτορική διατριβή παρουσιάζεται μια εκτεταμένη έρευνα, η οποία κατέληξε στο σχεδιασμό και την ανάπτυξη ενός συστήματος συνεργαζόμενων πρακτόρων με σκοπό την επιτάχυνση των ανωτέρω διαδικασιών καθώς και την αύξηση της ακρίβειας και αξιοπιστίας στην εφαρμογής τους. Περιγράφεται πλήρως η δομή του προτεινόμενου συστήματος, τόσο σε επίπεδο λογισμικού όσο και σε επίπεδο υλικού. Αναπτύσσονται διεξοδικά οι διεργασίες που λαμβάνουν χώρα σε μακροσκοπικό και μικροσκοπικό επίπεδο. Εφαρμόζεται η τεχνολογία ως χρήστης των ηλεκτρικών δικτύων ως δίαυλοι επικοινωνίας. Τέλος, η προσομοίωση, κατέδειξε την ευελιξία και προσαρμοστικότητα του συστήματος στις μεταβολές της τοπολογίας των δικτύων, την ακρίβεια και υψηλή ταχύτητα της λειτουργίας του, όπως επίσης την ικανότητα εφαρμογής του σε δίκτυα πολύπλοκης δομής και ανεξαρτήτου τοπολογίας
description: Power distribution system management and restoration are issues of major significance in terms of quality and reliability of the supplied electrical energy. In this Phd thesis, the development of a multi-agent system is presented, aiming at the incrementation of reliability, precision and velocity indexes of the above procedures. A complete and detailed description of the proposed system structure is being made(software and hardware aspects). Both macroscopic and microscopic procedures are revised. Power line communication technology is implemented. The effected simulation illustrates the system's versatility and adaptiveness to network topology alternations, the precision and reliability of the system operation as well as its ability to manage complexed networks with multiple interconnection points
Chorea: A Journey Throughout History
Creators: name: Cardoso Vale, Thiago
name: Cardoso, Francisco
Publisher: name: Tremor and Other Hyperkinetic Movements
Year: 2015

description: The original descriptions of chorea date from the Middle Ages, when an epidemic of “dancing mania” swept throughout Europe. The condition was initially considered a curse sent by a saint, but was named “Saint Vitus’s dance” because afflicted individuals were cured if they touched churches storing Saint Vitus’s relics. Paracelsus coined the term chorea Sancti Viti and recognized different forms of chorea (imaginativa, lasciva, and naturalis). In the 17th century, Thomas Sydenham provided an accurate description of what he termed chorea minor. He also described rheumatic fever but did not associate it with chorea. It was only in 1850 that See established a relationship between chorea and rheumatic disease. A connection with cardiac involvement was soon recognized and in 1866 Roger postulated that chorea, arthritis, and heart disease had a common cause. The last quarter of the 19th century is marked by the works of Jean‐Martin Charcot, Silas Weir Mitchell, William Osler, and William Richard Gowers, all of paramount importance in the refinement of the definition of chorea, its causes, and differential diagnosis. In 1841, Charles Oscar Waters gave a concise account of a syndrome, likely to be Huntington’s disease (HD), later described further by George Huntington and named after him. In 1955, the Venezuelan physician Americo Negrette published a book describing communities in the State of Zulia in Venezuela, with unusual numbers of individuals with chorea. Negrette’s works culminated in the creation of the Venezuela project and the subsequent discovery of seminal findings in HD. We review the historical facts and outstanding physicians that mark both HD and Sydenham’s chorea’s history in various sections.
description: Tremor and Other Hyperkinetic Movements, Tremor and Other Hyperkinetic Movements
Eccentricity fluctuations and elliptic flow at RHIC
Creators: name: Bhalerao, Rajeev S.
name: Ollitrault, Jean-Yves
Publisher: name: arXiv
Year: 2006
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Fluctuations in nucleon positions can affect the spatial eccentricity of the overlap zone in nucleus-nucleus collisions. We show that elliptic flow should be scaled by different eccentricities depending on which method is used for the flow analysis. These eccentricities are estimated semi-analytically. When $v_2$ is analyzed from 4-particle cumulants, or using the event plane from directed flow in a zero-degree calorimeter, the result is shown to be insensitive to eccentricity fluctuations.
description: 5 pages, 3 eps figures
Management Recommendation 1 for each case study
Creators: name: Mikkelsen, Nina
name: Olsen, Karin
name: Rodriguez, Alexandre
name: Martín, Sonia Doblado
name: Vidal, Duarte F.
name: Pérez, Rosa Chapela
name: Ballesteros, Marta
name: Stobberup, Kim
name: Erzini, Karim
name: Herrera, Miguel
name: Morón, Julio
name: Roucou, Yannick
name: Nielsen, Kåre Nolde
name: Kvalvik, Ingrid
name: Staby, Arved
name: Elkalay, Khalid
name: Teijeria, Francisco
name: Martin, Juan
name: Ruiz, Javier
name: Aschan, Michaela
name: Viðarsson, Jónas R.
Publisher: name: Zenodo
Year: 2020
Subjects: SFPA - Sustainable Fisheries Partnership Agreements
CFP - Common Fisheries Policy
Fisheries management
Horizon 2020
Mauritania
Senegal
EU fleet
Cape Verde
Seychelles
High Seas

description: More than 20% of the European fishing fleets catches are taken from non-European waters. Access to these waters is often based on agreements with coastal states that allow the EU fleet to fish from surplus stocks in return for financial support. These agreements have been subjected to criticism, as these fisheries are sometimes poorly regulated and management decisions are often based on limited knowledge, compliance, and enforcement capabilities. It is also too often the case that trust between stakeholders is lacking. The aim of the FarFish project is to overcome these hurdles. The FarFish project is designed around six case study areas in which the European fleet is actively engaged in fishing activities, including Cape Verde, Mauritania, Senegal and Seychelles, as well as the international high-seas areas in the southeast and southwest Atlantic. Among the Research & Innovation outputs of the FarFish project is a development of a management approach where the management authorities and the resource users come to an agreement on some key objectives and how to meet them. This approach is designed to reduce micromanagement by involving stakeholders and increase the degree of co-management by delegating management responsibilities to resource users. The process is broken into a number of steps, which include a) the provision of guidelines on how to develop so called management recommendations (MRs), b) provision of an invitation from the authorities to the resource users to develop MRs, where overall objectives are established, c) development of MRs, d) third party audit of the MR, where the success of the MR is evaluated. Draft guidelines and MR invitations have been published, and this report compiles the first proposals for MRs for each of the FarFish case studies. These will then be audited by an independent auditor and the whole process will then be re-iterated. The aim is that by the end of the project, we will have a tested / validated approach for how to manage fisheries in cocreation between authorities and resource users.
Low T/|W| dynamical instabilities in differentially rotating stars: Diagnosis with canonical angular momentum
Creators: name: Saijo, Motoyuki
name: Yoshida, Shin'ichirou
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We study the nature of non-axisymmetric dynamical instabilities in differentially rotating stars with both linear eigenmode analysis and hydrodynamic simulations in Newtonian gravity. We especially investigate the following three types of instability; the one-armed spiral instability, the low T/|W| bar instability, and the high T/|W| bar instability, where T is the rotational kinetic energy and W is the gravitational potential energy. The nature of the dynamical instabilities is clarified by using a canonical angular momentum as a diagnostic. We find that the one-armed spiral and the low T/|W| bar instabilities occur around the corotation radius, and they grow through the inflow of canonical angular momentum around the corotation radius. The result is a clear contrast to that of a classical dynamical bar instability in high T/|W|. We also discuss the feature of gravitational waves generated from these three types of instability.
description: 8 pages with 6 eps figures, aipproc.cls. To appear in Proceedings of the Albert Einstein Century International Conference, Paris, France, 2005, edited by Jean-Michel Alimi and Andre Fuzfa (American Institute of Physics)
A New Numerical Abstract Domain Based on Difference-Bound Matrices
Creators: name: Miné, Antoine
Publisher: name: arXiv
Year: 2007
Subjects: subject: Programming Languages (cs.PL)
subject: FOS: Computer and information sciences

description: This paper presents a new numerical abstract domain for static analysis by abstract interpretation. This domain allows us to represent invariants of the form (x-y<=c) and (+/-x<=c), where x and y are variables values and c is an integer or real constant. Abstract elements are represented by Difference-Bound Matrices, widely used by model-checkers, but we had to design new operators to meet the needs of abstract interpretation. The result is a complete lattice of infinite height featuring widening, narrowing and common transfer functions. We focus on giving an efficient O(n2) representation and graph-based O(n3) algorithms - where n is the number of variables|and claim that this domain always performs more precisely than the well-known interval domain. To illustrate the precision/cost tradeoff of this domain, we have implemented simple abstract interpreters for toy imperative and parallel languages which allowed us to prove some non-trivial algorithms correct.
description: (update: reversed author first and last names)
Waterworlds Probably Do Not Experience Magmatic Outgassing
Creators: name: Krissansen-Totton, Joshua
name: Galloway, Max L.
name: Wogan, Nicholas
name: Dhaliwal, Jasmeet K.
name: Fortney, Jonathan J.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: Terrestrial planets with large water inventories are likely ubiquitous and will be among the first Earth-sized planets to be characterized with upcoming telescopes. It has previously been argued that waterworlds-particularly those possessing more than 1% H$_2$O-experience limited melt production and outgassing due to the immense pressure overburden of their overlying oceans, unless subject to high internal heating. But an additional, underappreciated obstacle to outgassing on waterworlds is the high solubility of volatiles in high-pressure melts. Here, we investigate this phenomenon and show that volatile solubilities in melts probably prevent almost all magmatic outgassing from waterworlds. Specifically, for Earth-like gravity and oceanic crust composition, oceans or water ice exceeding 10-100 km in depth (0.1-1 GPa) preclude the exsolution of volatiles from partial melt of silicates. This solubility limit compounds the pressure overburden effect as large surface oceans limit both melt production and degassing from any partial melt that is produced. We apply these calculations to Trappist-1 planets to show that, given current mass and radius constraints and implied surface water inventories, Trappist-1f and -1g are unlikely to experience volcanic degassing. While other mechanisms for interior-surface volatile exchange are not completely excluded, the suppression of magmatic outgassing simplifies the range of possible atmospheric evolution trajectories and has implications for interpretation of ostensible biosignature gases, which we illustrate with a coupled model of planetary interior-climate-atmosphere evolution.
description: 16 pages, 11 figures
White Matter Microstructure in Idiopathic Craniocervical Dystonia
Creators: name: Pinheiro, Giordanna L.S.
name: Guimarães, Rachel P.
name: Piovesana, Luiza G.
name: Campos, Brunno M.
name: Campos, Lidiane S.
name: Azevedo, Paula C.
name: Torres, Fabio R.
name: Amato‐Filho, Augusto C.
name: França Jr, Marcondes C.
name: Lopes‐Cendes, Iscia
name: Cendes, Fernando
name: D’Abreu, Anelyssa
Publisher: name: Tremor and Other Hyperkinetic Movements
Year: 2015

description: Background: Dystonias are hyperkinetic movement disorders characterized by involuntary muscle contractions resulting in abnormal torsional movements and postures. Recent neuroimaging studies in idiopathic craniocervical dystonia (CCD) have uncovered the involvement of multiple areas, including cortical ones. Our goal was to evaluate white matter (WM) microstructure in subjects with CCD using diffusion tensor imaging (DTI) analysis. Methods: We compared 40 patients with 40 healthy controls. Patients were then divided into subgroups: cervical dystonia, blepharospasm, blepharospasm + oromandibular dystonia, blepharospasm + oromandibular dystonia + cervical dystonia, using tract‐based spatial statistics. We performed a region of interest‐based analysis and tractography as confirmatory tests. Results: There was no significant difference in the mean fractional anisotropy (FA) and mean diffusivity (MD) between the groups in any analysis. Discussion: The lack of DTI changes in CCD suggests that the WM tracts are not primarily affected.
description: Tremor and Other Hyperkinetic Movements, Tremor and Other Hyperkinetic Movements
Interplay of type I and type II seesaw contributions to neutrino mass
Creators: name: Akhmedov, Evgeny Kh.
name: Frigerio, Michele
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Type I and type II seesaw contributions to the mass matrix of light neutrinos are inherently related if left-right symmetry is realized at high energy scales. We investigate implications of such a relation for the interpretation of neutrino data. We proved recently that the left-right symmetric seesaw equation has eight solutions, related by a duality property, for the mass matrix of right-handed neutrinos $M_R$. In this paper the eight allowed structures of $M_R$ are reconstructed analytically and analyzed numerically in a bottom-up approach. We study the dependence of right-handed neutrino masses on the mass spectrum of light neutrinos, mixing angle $θ_{13}$, leptonic CP violation, scale of left-right symmetry breaking and on the hierarchy in neutrino Yukawa couplings. The structure of the seesaw formula in several specific SO(10) models is explored in the light of the duality. The outcome of leptogenesis may depend crucially on the choice among the allowed structures of $M_R$ and on the level crossing between right-handed neutrino masses.
description: 55 pages, JHEP3.cls, 18 eps files; section added (4.1) about right-handed neutrinos at TeV scale
Towards a Flexible System Architecture for Automated Knowledge Base Construction Frameworks
Creators: name: Din, Osman
Publisher: name: arXiv
Year: 2021
Subjects: subject: Information Retrieval (cs.IR)
subject: FOS: Computer and information sciences

description: Although knowledge bases play an important role in many domains (including in archives, where they are sometimes used for entity extraction and semantic annotation tasks), it is challenging to build knowledge bases by hand. This is owing to a number of factors: Knowledge bases must be accurate, up-to-date, comprehensive, and as flexible and as efficient as possible. These requirements mean a large undertaking, in the form of extensive work by subject matter experts (such as scientists, programmers, archivists, and other information professionals). Even when successfully engineered, manually built knowledge bases are typically one-off, use-case-specific, non-standardized, hard-to-maintain solutions. We present a scalable, flexible, and extensible architecture for knowledge base construction frameworks. As a work in progress, we extend a specific framework to address some of its design limitations. The contributions presented in this short paper can shed a light on the suitability of using AKBC frameworks for computational use cases in this domain and provide future directions for building improved AKBC frameworks.
Determinants of support provision : interaction of provider and recipient factors
Creators: name: Trobst, Krista Kornelia
Publisher: name: University of British Columbia
Year: 2011

description: Little research has examined the determinants of support provision. This study assessed the importance of provider empathy, provider gender, recipient gender, and recipient expressed distress in influencing supportiveness. The study made use of a 2 X 2 (gender of coper by distress of coper) between subjects design, with level of empathy and gender of subject as internal factors. Eighty-one male and 84 female undergraduates completed a measure of dispositional empathy and watched a videotape of a high or low emotion, male or female coper. Respondents then indicated via questionnaire responses, their reactions to the coper and the amounts and kinds of support they would be willing to provide. Subjects were then asked to volunteer to act as a peer counselor to the coper. As predicted, results indicated a positive association between supportiveness and empathy. Also consistent with predictions, greater supportiveness was evidenced among women than among men, and a significant portion of this tendency was attributable to gender differences in empathy. In general, no differences were found in supportiveness as a function of the gender of the coper. Last, high distress copers were liked more, and were perceived as needing more support than low distress copers. In turn, participants indicated a greater willingness to provide support to high emotion copers.
One new sesquiterpene pyridine alkaloid from the stems and leaves of Euonymus fortunei
Creators: name: Kuang, Guang-Kai
name: Wang, Lin
name: Yang, Li-Li
name: Zhang, Yu-Bo
name: Luo, Ding
name: Zhou, Yi-Duo
name: Chen, Neng-Hua
name: Wu, Zhong-Nan
name: Wang, Guo-Cai
name: Li, Yao-Lan
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Biochemistry
subject: Environmental Sciences not elsewhere classified
subject: Chemical Sciences not elsewhere classified
subject: Ecology
subject: FOS: Biological sciences
subject: Sociology
subject: FOS: Sociology
subject: Biological Sciences not elsewhere classified

description: A new sesquiterpene pyridine alkaloid (1), along with four known compounds (2-5), were isolated from the stems and leaves of Euonymus fortunei. The new structure was determined by extensive spectroscopic analyses (IR, UV, NMR, HRESIMS and ECD). In addition, compound 3 showed a stronger anti-respiratory syncytial virus (RSV) activity with an IC50 value of 1.20 ± 0.10 µM than the positive control ribavirin with an IC50 value of 5.62 ± 0.49 µM.
Functional Aspects of Gait in Essential Tremor: A Comparison with Age-Matched Parkinson’s Disease Cases, Dystonia Cases, and Controls
Creators: name: Louis, Elan D.
name: Rao, Ashwini K.
Publisher: name: Tremor and Other Hyperkinetic Movements
Year: 2015

description: Background: An understanding of the functional aspects of gait and balance has wide ramifications. Individuals with balance disorders often restrict physical activity, travel, and social commitments to avoid falling, and loss of balance confidence, itself, is a source of disability. We studied the functional aspects of gait in patients with essential tremor (ET), placing their findings within the context of two other neurological disorders (Parkinson’s disease [PD] and dystonia) and comparing them with age‐matched controls. Methods: We administered the six‐item Activities of Balance Confidence (ABC‐6) Scale and collected data on number of falls and near‐falls, and use of walking aids in 422 participants (126 ET, 77 PD, 46 dystonia, 173 controls). Results: Balance confidence was lowest in PD, intermediate in ET, and relatively preserved in dystonia compared with controls. This ordering reoccurred for each of the six ABC‐6 items. The number of near‐falls and falls followed a similar ordering. Use of canes, walkers, and wheelchairs was elevated in ET and even greater in PD. Several measures of balance confidence (ABC‐6 items 1, 4, 5, and 6) were lower in torticollis cases than in those with blepharospasm, although the two groups did not differ with respect to falls or use of walking aids. Discussion: Lower balance confidence, increased falls, and greater need for walking aids are variably features of a range of movement disorder patients compared to age‐matched controls. While most marked among PD patients, these issues affected ET patients as well and, to a small degree, some patients with dystonia.
description: Tremor and Other Hyperkinetic Movements, Tremor and Other Hyperkinetic Movements
Field-Sensitive Value Analysis of Embedded C Programs with Union Types and Pointer Arithmetics
Creators: name: Miné, Antoine
Publisher: name: arXiv
Year: 2007
Subjects: subject: Programming Languages (cs.PL)
subject: FOS: Computer and information sciences

description: We propose a memory abstraction able to lift existing numerical static analyses to C programs containing union types, pointer casts, and arbitrary pointer arithmetics. Our framework is that of a combined points-to and data-value analysis. We abstract the contents of compound variables in a field-sensitive way, whether these fields contain numeric or pointer values, and use stock numerical abstract domains to find an overapproximation of all possible memory states--with the ability to discover relationships between variables. A main novelty of our approach is the dynamic mapping scheme we use to associate a flat collection of abstract cells of scalar type to the set of accessed memory locations, while taking care of byte-level aliases - i.e., C variables with incompatible types allocated in overlapping memory locations. We do not rely on static type information which can be misleading in C programs as it does not account for all the uses a memory zone may be put to. Our work was incorporated within the Astrée static analyzer that checks for the absence of run-time-errors in embedded, safety-critical, numerical-intensive software. It replaces the former memory domain limited to well-typed, union-free, pointer-cast free data-structures. Early results demonstrate that this abstraction allows analyzing a larger class of C programs, without much cost overhead.
description: (update: reversed author first and last names)
The effect of differential victim crime reporting on predictive policing systems
Creators: name: Akpinar, Nil-Jana
name: De-Arteaga, Maria
name: Chouldechova, Alexandra
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computers and Society (cs.CY)
subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences

description: Police departments around the world have been experimenting with forms of place-based data-driven proactive policing for over two decades. Modern incarnations of such systems are commonly known as hot spot predictive policing. These systems predict where future crime is likely to concentrate such that police can allocate patrols to these areas and deter crime before it occurs. Previous research on fairness in predictive policing has concentrated on the feedback loops which occur when models are trained on discovered crime data, but has limited implications for models trained on victim crime reporting data. We demonstrate how differential victim crime reporting rates across geographical areas can lead to outcome disparities in common crime hot spot prediction models. Our analysis is based on a simulation patterned after district-level victimization and crime reporting survey data for Bogotá, Colombia. Our results suggest that differential crime reporting rates can lead to a displacement of predicted hotspots from high crime but low reporting areas to high or medium crime and high reporting areas. This may lead to misallocations both in the form of over-policing and under-policing.
description: Conference on Fairness, Accountability, and Transparency (FAccT 2021)
Ανάλυση μεθόδου πεπερασμένων όγκων για τις ασυμπίεστες εξισώσεις Navier-Stokes
Creators: name: Συράκος, Αλέξανδρος Θ.
Publisher: name: Aristotle University of Thessaloniki
Year: 2006
Subjects: Μέθοδος πεπερασμένων όγκων
Μέθοδος πολλαπλών πλεγμάτων
Finite volume method
Multigrid

description: Η διατριβή ασχολείται με την ανάλυση και βελτίωση μιας μεθόδου πεπερασμένων όγκων για την επίλυση των χρονικά σταθερών εξισώσεων Navier-Stokes για ασυμπίεστα ρευστά. Χρησιμοποιούνται σχήματα διακριτοποίησης 2ης τάξης και μια καινούρια παραλλαγή παρεμβολής ορμής για την αποφυγή ταλαντώσεων πίεσης. Αναπτύσσεται και δοκιμάζεται στην πράξη μια μέθοδος υπολογισμού του σφάλματος αποκοπής η οποία χρησιμοποιεί τη λύση σε ένα δεδομένο πλέγμα, και ένα αραιότερο πλέγμα(χωρίς επίλυση σε αυτό). Αυτή η εκτίμηση του σφάλματος αποκοπής χρησιμοποιείται για την αύξηση της ακρίβειας της μεθόδου πεπερασμένων όγκων, αλλά και στα πλαίσια ενός κριτηρίου τοπικής υποδιαίρεσης του πλέγματος το οποίο υποδιαιρεί τους όγκους ελέγχου που συνεισφέρουν περισσότερο στο ολοκλήρωμα του σφάλματος αποκοπής στο χώρο. Τα αριθμητικά φανερώνουν ότι αυτό το κριτήριο υποδιαίρεσης είναι αποδοτικό για υψηλούς αριθμούς Reynolds αλλά όχι για χαμηλούς και ότι αναπτύσσονται πολύ υψηλά σφάλματα αποκοπής στα όρια μεταξύ διαφορετικών επιπέδων του πλέγματος και στα όρια του χώρου. Τέλος παρατηρείται σημαντική επιτάχυνση του ρυθμού σύγκλισης όταν η μέθοδος Simple ενισχύεται με μια μέθοδο πολλαπλών πλεγμάτων, τροποποιημένη για τοπικά υποδιαιρεμένα πλέγματα
description: The thesis delas with the analysis and improvement of a finite volume method for the steady state incompressible Navier-Stokes equations. 2nd order central differences are used along with a new momentum interpolation to avoid pressure oscillations. A truncation error estimate is developed and tested which uses the solution of a given grid and a coarser grid. This estimate is used to increase the accuracy of the finite volume method and to enable a local refinement criterion which subdivides those control volumes which contribute the greatest to the integral of the truncation error. Numerical experiments show that this criterion is efficient at high Reynolds numbers to the integral of the truncation error. Numerical experiments show that this criterion is efficient at high Reynolds numbers but not at low ones and that very high truncation errors develop at grid level interfaces and domain boundaries. finally, the "simple" solver is accelerated using a multipled scheme which is modified to allow for locally refined grids. Numerical experiments show great increase of efficiency compared to "simple" alone
Ge/Si nanowire mesoscopic Josephson junctions
Creators: name: Xiang, Jie
name: Vidan, A.
name: Tinkham, M.
name: Westervelt, R. M.
name: Lieber, Charles M.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The controlled growth of nanowires (NWs) with dimensions comparable to the Fermi wavelengths of the charge carriers allows fundamental investigations of quantum confinement phenomena. Here, we present studies of proximity-induced superconductivity in undoped Ge/Si core/shell NW heterostructures contacted by superconducting leads. By using a top gate electrode to modulate the carrier density in the NW, the critical supercurrent can be tuned from zero to greater than 100 nA. Furthermore, discrete sub-bands form in the NW due to confinement in the radial direction, which results in stepwise increases in the critical current as a function of gate voltage. Transport measurements on these superconductor-NW-superconductor devices reveal high-order (n = 25) resonant multiple Andreev reflections, indicating that the NW channel is smooth and the charge transport is highly coherent. The ability to create and control coherent superconducting ordered states in semiconductor-superconductor hybrid nanostructures allows for new opportunities in the study of fundamental low-dimensional superconductivity.
Ολοκληρωμένη διαχείριση των υδατικών πόρων: εφαρμογή του πίνακα ισορροπημένης στοχοθεσία στη λεκάνη απορροής του Νέστου
Creators: name: Καμπράγκου, Ελένη Γ.
Publisher: name: Aristotle University of Thessaloniki
Year: 2006
Subjects: Πίνακας ισορροπημένης στοχοθεσίας
Balanced score card

description: Αντικείμενο της διδακτορικής διατριβής είναι η ανάπτυξη και η αξιοποίηση ενός εργαλείου σχεδιασμού και αξιολόγησης της ολοκληρωμένης διαχείρισης των υδατικών πόρων, με γνώμoνα τη θέσπιση στόχων διαχείρισης του νερού σε σχέση με την ευρύτερη στρατηγική στον τομέα των υδατικών πόρων. Συγκεκριμένα, χρησιμοποιήθηκε ο Πίνακας Ισορροπημένης Στοχοθεσία(ΠΙΣ), προσαρμοσμένος στις ανάγκες και ιδιαιτερότητες της ολοκληρωμένης διαχείρισης των υδατικών πόρων, με περίπτωση μελέτης της λεκάνη απορροής του ποταμού Νέστου. Ο ΠΙΣ αναδείχτηκε χρήσιμο εργαλείο για την ενσωμάτωση των αρχών και των μεθόδων, που αφορούν την ολoκληρωμένη διαχείριση των υδατικών πόρων. Επιτυγχάνεται παράλληλα 1)η θέσπιση στόχων και ο σχεδιασμός δράσεων διαχείρισης και 2)η αντικειμενική αξιολόγηση της απόδοσή τους, με ένα εργαλείο. Οσον αφορά στην περίπτωση του Νέστου, αναδείχτηκαν και αξιολογήθηκαν τα κρίσιμα σημεία βελτίωσης του νερού στην περιοχή
description: Aim of the thesis is the development and use of a commonly planning, management and assessment tool for integrated water resources management, taking into account adapts such a tool, the Balanced Score card(BSC), to the needs of integrated water resources management. The tool was applied and tested in Nestos river basin. The tool was applied and tested in Nestos river basin. By using only one tool, the BSC it was achieved both 1)goal definition and strategy development and 2)the assessment of performance in water management. As for as Nestos basin is concerned, the crucial parameters for the improvement of water management performance in the region, were identified and assessed
A Few Graph-Based Relational Numerical Abstract Domains
Creators: name: Miné, Antoine
Publisher: name: arXiv
Year: 2007
Subjects: subject: Programming Languages (cs.PL)
subject: FOS: Computer and information sciences

description: This article presents the systematic design of a class of relational numerical abstract domains from non-relational ones. Constructed domains represent sets of invariants of the form (vj - vi in C), where vj and vi are two variables, and C lives in an abstraction of P(Z), P(Q), or P(R). We will call this family of domains weakly relational domains. The underlying concept allowing this construction is an extension of potential graphs and shortest-path closure algorithms in exotic-like algebras. Example constructions are given in order to retrieve well-known domains as well as new ones. Such domains can then be used in the Abstract Interpretation framework in order to design various static analyses. Amajor benfit of this construction is its modularity, allowing to quickly implement new abstract domains from existing ones.
description: (update: reversed author first and last names)
Reduced Number of Pigmented Neurons in the Substantia Nigra of Dystonia Patients? Findings from Extensive Neuropathologic, Immunohistochemistry, and Quantitative Analyses
Creators: name: Iacono, Diego
name: Geraci-Erck, Maria
name: Peng, Hui
name: Rabin, Marcie L.
name: Kurlan, Roger
Publisher: name: Tremor and Other Hyperkinetic Movements
Year: 2015

description: Background: Dystonias (Dys) represent the third most common movement disorder after essential tremor (ET) and Parkinson's disease (PD). While some pathogenetic mechanisms and genetic causes of Dys have been identified, little is known about their neuropathologic features. Previous neuropathologic studies have reported generically defined neuronal loss in various cerebral regions of Dys brains, mostly in the basal ganglia (BG), and specifically in the substantia nigra (SN). Enlarged pigmented neurons in the SN of Dys patients with and without specific genetic mutations (e.g., GAG deletions in DYT1 dystonia) have also been described. Whether or not Dys brains are associated with decreased numbers or other morphometric changes of specific neuronal types is unknown and has never been addressed with quantitative methodologies. Methods: Quantitative immunohistochemistry protocols were used to estimate neuronal counts and volumes of nigral pigmented neurons in 13 SN of Dys patients and 13 SN of age‐matched control subjects (C). Results: We observed a significant reduction (∼20%) of pigmented neurons in the SN of Dys compared to C (p<0.01). Neither significant volumetric changes nor evident neurodegenerative signs were observed in the remaining pool of nigral pigmented neurons in Dys brains. These novel quantitative findings were confirmed after exclusion of possible co‐occurring SN pathologies including Lewy pathology, tau‐neurofibrillary tangles, β‐amyloid deposits, ubiquitin (ubiq), and phosphorylated‐TAR DNA‐binding protein 43 (pTDP43)‐positive inclusions. Discussion: A reduced number of nigral pigmented neurons in the absence of evident neurodegenerative signs in Dys brains could indicate previously unconsidered pathogenetic mechanisms of Dys such as neurodevelopmental defects in the SN.
description: Tremor and Other Hyperkinetic Movements, Tremor and Other Hyperkinetic Movements
BEC-BCS crossover in an optical lattice
Creators: name: Koetsier, Arnaud
name: Dickerscheid, D. B. M.
name: Stoof, H. T. C.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We present the microscopic theory for the BEC-BCS crossover of an atomic Fermi gas in an optical lattice, showing that the Feshbach resonance underlying the crossover in principle induces strong multiband effects. Nevertheless, the BEC-BCS crossover itself can be described by a single-band model since it occurs at magnetic fields that are relatively far away from the Feshbach resonance. A criterion is proposed for the latter, which is obeyed by most known Feshbach resonances in ultracold atomic gases.
description: 4 pages, 3 figures
Hierarchical multiscale quantification of material uncertainty
Creators: name: Liu, Burigede
name: Sun, Xingsheng
name: Bhattacharya, Kaushik
name: Ortiz, Michael
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: The macroscopic behavior of many materials is complex and the end result of mechanisms that operate across a broad range of disparate scales. An imperfect knowledge of material behavior across scales is a source of epistemic uncertainty of the overall material behavior. However, assessing this uncertainty is difficult due to the complex nature of material response and the prohibitive computational cost of integral calculations. In this paper, we exploit the multiscale and hierarchical nature of material response to develop an approach to quantify the overall uncertainty of material response without the need for integral calculations. Specifically, we bound the uncertainty at each scale and then combine the partial uncertainties in a way that provides a bound on the overall or integral uncertainty. The bound provides a conservative estimate on the uncertainty. Importantly, this approach does not require integral calculations that are prohibitively expensive. We demonstrate the framework on the problem of ballistic impact of a polycrystalline magnesium plate. Magnesium and its alloys are of current interest as promising light-weight structural and protective materials. Finally, we remark that the approach can also be used to study the sensitivity of the overall response to particular mechanisms at lower scales in a materials-by-design approach.
Pädagogische Fachkräfte - ein Schlüssel zum Erfolg für mehr Digitalisierung in Wohneinrichtungen?!
Creators: name: Heitplatz, Vanessa Nina
Publisher: name: Technische Universität Dortmund
Year: 2021
Subjects: subject: Pädagogische Fachkräfte
subject: Digitalisierung
subject: Wohneinrichtungen
subject: Intellektuelle Beeinträchtigung
subject: Digitale Teilhabe
subject: 360
subject: 370
subject: Pädagoge
subject: Pädagogin
subject: Digitale Revolution
subject: Teilhabe
subject: Behindertenhilfe
subject: Soziale Einrichtung

description: Pädagogischen Fachkräften kommt in Einrichtungen der Behindertenhilfe eine besondere Rolle als Multiplikator*innen von Medienkompetenzen für die Klient*innen zu. Die Praxis zeigt jedoch, dass oftmals ungünstige Rahmenbedingungen und Einflussfaktoren dieser Rolle im Weg stehen. In diesem Artikel werden die Ergebnisse einer Fragebogenstudie mit 89 pädagogischen Fachkräften zu ihrer Akzeptanz, Haltung und Offenheit gegenüber der Mediennutzung ihrer Klient*innen vorgestellt. Schlussendlich werden Implikationen für die pädagogische Arbeit abgeleitet.
Self-dual solitons in a Born-Infeld baby Skyrme model
Creators: name: Casana, Rodolfo
name: Santos, André C.
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We show the existence of self-dual (topological) solitons in a gauged version of the baby Skyrme model in which the Born-Infeld term governs the gauge field dynamics. The successful implementation of the Bogomol'nyi-Prasad-Sommerfield formalism provides a lower bound for the energy and the respective self-dual equations whose solutions are the solitons saturating such a limit. The energy lower bound (Bogomol'nyi bound) is proportional to the topological charge of the Skyrme field and therefore quantized. In contrast, the total magnetic flux is a nonquantized quantity. Furthermore, the model supports three types of self-dual solitons profiles: the first describes compacton solitons, the second follows a Gaussian decay law, and the third portrays a power-law decay. Finally, we perform numerical solutions of the self-dual equations and depicted the soliton profiles for different values of the parameters controlling the nonlinearity of the model.
Measuring selected neighbourhood impacts of rapid transit
Creators: name: Adelman, Michael David
Publisher: name: University of British Columbia
Year: 2011

description: This thesis focuses on one aspect of the rapid transit planning process-the analytical assessment of localized impacts. The purpose of this thesis is to develop and test a method to determine the neighbourhood impacts of a proposed Richmond Rapid Transit Line in Vancouver. The method developed is as follows: Past impacts of various rapid transit systems are examined, and then, based on this information, quantitative and qualitative methods are used to determine potential impacts in a selected study area. A compendium of impact determinants is generated as part of the method. In order to fine tune the method, specific findings on impacts in the Study Area, as well as ways to mitigate adverse impacts in each category, were examined. In all, ten impact categories are dealt with—noise, loss of privacy, shadowing and light overspill, view obstruction and other aesthetic effects, traffic and parking impacts, pedestrian impacts, land use and property price impacts, commercial activity impacts, indirect social impacts, and impacts on local amenities. To assist in the application of- the method to other situations, a set of recommendations is presented. In addition, a general recommendation is made to compensate for unmitigated impacts by the addition of special community amenities. The findings of this thesis must be qualified by the need to examine additional routes, technologies, and neighbourhoods; and by the need to subject them to the scrutiny of the people that would be most affected.
Symbolic Methods to Enhance the Precision of Numerical Abstract Domains
Creators: name: Miné, Antoine
Publisher: name: arXiv
Year: 2007
Subjects: subject: Programming Languages (cs.PL)
subject: FOS: Computer and information sciences

description: We present lightweight and generic symbolic methods to improve the precison of numerical static analyses based on Abstract Interpretation. The main idea is to simplify numerical expressions before they are fed to abstract transfer functions. An important novelty is that these simplifications are performed on-the-fly, using information gathered dynamically by the analyzer. A first method, called "linearization," allows abstracting arbitrary expressions into affine forms with interval coefficients while simplifying them. A second method, called "symbolic constant propagation," enhances the simplification feature of the linearization by propagating assigned expressions in a symbolic way. Combined together, these methods increase the relationality level of numerical abstract domains and make them more robust against program transformations. We show how they can be integrated within the classical interval, octagon and polyhedron domains. These methods have been incorporated within the Astrée static analyzer that checks for the absence of run-time errors in embedded critical avionics software. We present an experimental proof of their usefulness.
description: (update: reversed author first and last names)
Myoclonus in Ataxia-Telangiectasia
Creators: name: Termsarasab, Pichet
name: Yang, Amy C
name: Frucht, Steven J
Publisher: name: Tremor and Other Hyperkinetic Movements
Year: 2015

description: Background: Various movement disorders can be found in ataxia-telangiectasia (AT), including ataxia, dystonia, chorea, and myoclonus, but myoclonus has rarely been described as the predominant feature in AT. Case Report: We report two AT patients with prominent myoclonus in relative isolation, illustrating an unusual presentation of this disorder. Sequencing of the ATM gene in the first patient revealed a homozygous truncating mutation, c.5908C>T (p.Q1970*) in exon 38 of the ATM gene which has been previously reported as a founder mutation in the Costa Rican population. Discussion: Myoclonus can be a predominant or presenting feature in AT, even without dystonia.
description: Tremor and Other Hyperkinetic Movements, Tremor and Other Hyperkinetic Movements
Quantum field theory on the degenerate Moyal space
Creators: name: Grosse, Harald
name: Vignes-Tourneret, Fabien
Publisher: name: arXiv
Year: 2008
Subjects: subject: Mathematical Physics (math-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences
subject: 81R60, 81T10, 81T15, 81T17

description: We prove that the self-interacting scalar field on the four-dimensional degenerate Moyal plane is renormalisable to all orders when adding a suitable counterterm to the Lagrangean. Despite the apparent simplicity of the model, it raises several non trivial questions. Our result is a first step towards the definition of renormalisable quantum field theories on a non-commutative Minkowski space.
description: 21 pages, 4 figures. We use the techniques of the previous version in a conclusive manner on the degenerate Moyal space