cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Reivindicando a Mary Richmond y su obra
Creators: name: Aranda, Miguel Miranda
Publisher: name: Locus Soci@l
Year: 2010

description: La figura de M. E. Richmond es fundamental en la historia del Trabajo Social, una historia que hay que recuperar, e incluso construir y conocer, para avanzar en la consolidación de la profesión. No hay identidad individual y colectiva ignorando la propia historia. Todas las disciplinas reconocen a sus pioneros, a sus clásicos pero en el Trabajo Social por unas u otras razones se despreció su obra o se le clasificó de manera inadecuada. En este artículo se debate sobre las principales acusaciones formuladas contra Mary Richmond (asistencialismo, funcionalismo, darwinismo), en un intento de situarla mejor, vinculada al Pragmatismo filosófico y al Interaccionismo y con la esperanza de que las nuevas generaciones lleguen a sentirse orgullosas herederas de una de aquellas mujeres admirables que inventaron el Trabajo Social.
description: Locus Soci@l, No 5 (2010)
Effects of surface tension reduction on wind-wave growth and air-water scalar transfer
Creators: name: Matsuda, Keigo
name: Komori, Satoru
name: Takagaki, Naohisa
name: Onishi, Ryo
Publisher: name: arXiv
Year: 2022
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: Effect of surface tension reduction on wind-wave growth is investigated using direct numerical simulation (DNS) of air-water two-phase turbulent flow. The incompressible Navier-Stokes equations for air and water sides are solved using an arbitrary Lagrangian-Eulerian method with boundary-fitted moving grids. The wave growth of finite-amplitude and non-breaking gravity--capillary waves, whose wavelength is less than 0.07 m, is simulated for two cases of different surface tensions under a low--wind speed condition of several meters per second. The results show that significant wave height for the smaller surface tension case increases faster than that for the larger surface tension case. Energy fluxes for gravity and capillary wave scales reveal that, when the surface tension is reduced, the energy transfer from the significant gravity waves to capillary waves decreases and the significant waves accumulate more energy supplied by wind. This results in faster wave growth for the smaller surface tension case. Effect on the scalar transfer across the air-water interface is also investigated. The results show that the scalar transfer coefficient on the water side decreases due to the surface tension reduction. The decrease is caused by suppression of turbulence in the water side. In order to support the conjecture, the surface tension effect is compared with laboratory experiments in a small wind-wave tank.
Beyond the Spectral Standard Model: Emergence of Pati-Salam Unification
Creators: name: Chamseddine, Ali H.
name: Connes, Alain
name: van Suijlekom, Walter D.
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Quantum Algebra (math.QA)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: The assumption that space-time is a noncommutative space formed as a product of a continuous four dimensional manifold times a finite space predicts, almost uniquely, the Standard Model with all its fermions, gauge fields, Higgs field and their representations. A strong restriction on the noncommutative space results from the first order condition which came from the requirement that the Dirac operator is a differential operator of order one. Without this restriction, invariance under inner automorphisms requires the inner fluctuations of the Dirac operator to contain a quadratic piece expressed in terms of the linear part. We apply the classification of product noncommutative spaces without the first order condition and show that this leads immediately to a Pati-Salam SU(2)_{R}x SU(2)_{L}x SU(4) type model which unifies leptons and quarks in four colors. Besides the gauge fields, there are 16 fermions in the (2,1,4)+(1,2,4) representation, fundamental Higgs fields in the (2,2,1), (2,1,4) and (1,1,1+15) representations. Depending on the precise form of the order one condition or not there are additional Higgs fields which are either composite depending on the fundamental Higgs fields listed above, or are fundamental themselves. These additional Higgs fields break spontaneously the Pati-Salam symmetries at high energies to those of the Standard Model.
description: Typographical error in Abstract corrected
title: Single-well tracer test for Sor estimation
Creators: name: Απειρανθιτης Νικολαος
Publisher: name: Technical University of Crete
Year: 2015

description: The Single-well Tracer Test is a test used extensively to measure the residual oil saturation- Sor in watered-out reservoir. Also, it is implemented in order to evaluate enhanced oil recovery (EOR) using chemicals, such as Alkaline/Surfactant/Polymer flooding.
The tracer test, in particular, includes a water/oil partitioning tracer injection, along with water, to a radius of investigation of 30 feet around a test well. Then the well is shut in and the injected tracer, usually an ester, reacts with the formation water producing ethanol. The produced ethanol dissolves only in the water. When the well is again set on production, the produced water is measured regularly, in order to measure the concentration of the tracers; the remained unreacted ester, and the produced ethanol. Due to the fact that the ester is partitioning tracer and the ethanol is a passive tracer, a separation will be observed on the arrival of time that the peak concentration is measured. This separation gives the Sor estimation. A passive tracer is injected along with the ester, in order to monitor any losses of the injected volumes in the reservoir. During production the ester’s and the passive tracer’s peak concentration should arrive at the same time.
The test is affected by several parameters, such as the reservoir temperature, the brine salinity and the temperature gradient that is created after the injection. The temperature affects the partitioning coefficient of the tracer in positive way, as also the reaction rate, with the same way. Brine salinity affects the partitioning coefficient in positive way, while the reaction rate of the tracer is affected negatively. In order to take into consideration initial temperature and brine effect, the part. Coefficient and the reaction rate are measured in the lab at reservoir conditions, using the formation water at the reservoir temperature. Furthermore, the injection is done with formation water in order to keep the salinity effect constant.
The temperature effect, in terms of different reservoir and/or injection water temperature is examined, and also in terms of the different temperature gradient that is created using or not pre-flush water volume in order to cool down the reservoir. The reservoir temperature affects the results with the same way; more ethanol is produced, while the water temperature, affects the reaction only when pre-flush is used. Injection rate also affects the amount of the produced ethanol, with high injection rate to be optimal the test to be valid.
Regarding the history matching conducted under the described scope and the temperature effects, better result were obtained when a pre-flush volume is injected. Also, more satisfying results were obtained with increasing the separate layers of the investigation interval. The final Sor estimation was not uniformly distributed though out the reservoir, varying from 10% to 26% at same cases.
All simulations were done using the Chemical Simulator of the University of Texas (UTCHEM).
Blackbody emission from light interacting with an effective moving dispersive medium
Creators: name: Petev, M.
name: Westerberg, N.
name: Moss, D.
name: Rubino, E.
name: Rimoldi, C.
name: Cacciatori, S. L.
name: Belgiorno, F.
name: Faccio, D.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Optics (physics.optics)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Intense laser pulses excite a nonlinear polarisation response that may create an effective flowing medium and, under appropriate conditions, a blocking horizon for light. Here we analyse in detail the interaction of light with such laser-induced flowing media, fully accounting for the medium dispersion properties. An analytical model based on a first Born-approximation is found to be in excellent agreement with numerical simulations based on Maxwell's equations and shows that when a blocking horizon is formed, the stimulated medium scatters light with a blackbody emission spectrum. Based on these results, diamond is proposed as a promising candidate medium for future studies of Hawking emission from artificial, dispersive horizons.
QED Meson Description of the X17 and Other Anomalous Particles
Creators: name: Wong, Cheuk-Yin
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The X17 particle, the E38 particle, and the anomalous soft photons are anomalous particles because they do not appear to belong to any known Standard Model families. We propose a QED meson description of the anomalous particles as composite systems of a light quark and a light antiquark bound and confined by the compact QED interaction, by combining Polyakov's transverse confinement of opposite electric charges in compact QED in (2+1)D and Schwinger's longitudinal confinement for massless opposite electric charges in QED in (1+1)D. With predicted QED meson masses close to the observed X17 and E38 masses, QED mesons may be good candidates for the description of the anomalous particles.
description: 4 pages 3 figures, presented at the Workshop of "Shedding Light on X17", September 6-8, 2021, Centro Ricerche Enrico Fermi, Rome, Italy
title: Design and development of a vibration measurement system for mechanical arrays
title: Σχεδιασμός και ανάπτυξη συστήματος μέτρησης ταλαντώσεων σε μηχανολογικές διατάξεις
Creators: name: Κωστακης Κωνσταντινος
Publisher: name: Technical University of Crete
Year: 2019

description: Στην παρούσα διπλωματική εργασία σχεδιάστηκε και υλοποιήθηκε ένα σύστημα μέτρησης ταλαντώσεων σε μηχανολογικές διατάξεις. Η διάταξη αποτελείται από έναν μικροελεγκτή με δυνατότητα ασύρματης επικοινωνίας με τον υπολογιστή όπου εκτελείται το πρόγραμμα διεπαφής χρήστη για την προβολή και την καταγραφή των μετρήσεων και τους αισθητήρες επιτάχυνσης. Το πλεονέκτημα της προτεινόμενης υλοποίησης σε σχέση με τις υπάρχουσες λύσεις στην αγορά είναι το χαμηλό της κόστος. Το προτεινόμενο σύστημα μέτρησης ελέγχθηκε με την χρήση πειραματικής διάταξης παραγωγής ταλαντώσεων. Οι πειραματικές μετρήσεις υποδεικνύουν ότι το σύστημα είναι αξιόπιστο για την διάγνωση ενός σημαντικού μέρους των βλαβών που παρουσιάζονται σε στρεφόμενο μηχανολογικό εξοπλισμό.
description: In this thesis, a low-cost data acquisition system is designed to measure vibrations in mechanical arrays. The measurement device consists of a microcontroller which is wirelessly connected to a computer. The measured vibration data can be visualized in real time and saved for post-processing on the computer with the help of a GUI. The proposed data acquisition system is significantly cheaper compared to similar commercially available products for fault detection. The accuracy and reliability of the system was tested by measuring known synthetic vibration signals. The signals were generated by an experimental device specifically designed for the purpose of testing the proposed vibration measurement system. Experimental results indicate that the designed system can be used for the detection of a wide range of mechanical faults in rotation equipment.
Typical perturbation theory: conditions, accuracy and comparison with a mesoscopic case
Creators: name: Lamann, Mats H.
name: Gemmer, Jochen
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: The perturbation theory based on typicality introduced in Ref. [1] and further refined in Refs. [2, 3] provides a powerful tool since it is intended to be applicable to a wide range of scenarios while relying only on a few parameters. Even though the authors present various examples to demonstrate the effectiveness of the theory, the conditions used in its derivation are often not thoroughly checked. It is argued that this is justified (without analytical reasoning) by the robustness of the theory. In the paper at hand, said perturbation theory is tested on three spin-based models. The following criteria are taken into focus: the fulfillment of the conditions, the accuracy of the predicted dynamics and the relevance of the results with respect to a mesoscopic case.
description: 12 pages, 17 figures
Supervisão em serviço social, percurso para o desenvolvimento profissional e pessoal: um estudo exploratório
Creators: name: Carvalho, Maria Irene De
Publisher: name: Locus Soci@l
Year: 2010

description: Este artigo tem como objectivo reflectir sobre o processo de supervisão em serviço social, considerando a sua importância para o desenvolvimento profissional e pessoal. Questiona o significado da supervisão em serviço social, os objectivos e os tipos de supervisão existentes. Reflecte sobre os vários modelos de supervisão e questiona qual o modelo mais adequado quando se fala da prática (praxis) dos profissionais de serviço social em determinado contexto. Prossegue, elaborando uma proposta de supervisão baseada num modelo integrado ecológico/holístico promotor de uma postura crítica e reflexiva. Termina com um estudo exploratório realizado a profissionais de serviço social sobre a percepção do processo de supervisão, questionando se será possível, através do mesmo, construir novas formas de acção tendo em conta o contexto, as famílias, os clientes, as organizações e os profissionais, os princípios e os valores em presença. Os mesmos consideram que a metodologia de supervisão integrada tem sido secundarizada em detrimento de uma supervisão burocrática e identificam algumas modalidades de supervisão que gostariam de experienciar no sentido de melhorar a prática profissional.
description: Locus Soci@l, No 4 (2010)
The risks of mixing dependency lengths from sequences of different length
Creators: name: Ferrer-i-Cancho, Ramon
name: Liu, Haitao
Publisher: name: arXiv
Year: 2013
Subjects: subject: Computation and Language (cs.CL)
subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: FOS: Computer and information sciences
subject: FOS: Physical sciences

description: Mixing dependency lengths from sequences of different length is a common practice in language research. However, the empirical distribution of dependency lengths of sentences of the same length differs from that of sentences of varying length and the distribution of dependency lengths depends on sentence length for real sentences and also under the null hypothesis that dependencies connect vertices located in random positions of the sequence. This suggests that certain results, such as the distribution of syntactic dependency lengths mixing dependencies from sentences of varying length, could be a mere consequence of that mixing. Furthermore, differences in the global averages of dependency length (mixing lengths from sentences of varying length) for two different languages do not simply imply a priori that one language optimizes dependency lengths better than the other because those differences could be due to differences in the distribution of sentence lengths and other factors.
description: Laguage and referencing has been improved; Eqs. 7, 11, B7 and B8 have been corrected
Bound orbit domains in the phase space of the Kerr geometry
Creators: name: Rana, Prerna
name: Mangalam, A.
Publisher: name: arXiv
Year: 2022
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We derive the conditions for a non-equatorial eccentric bound orbit to exist around a Kerr black hole in two-parameter spaces: the energy, angular momentum of the test particle, spin of the black hole, and Carter's constant space ($E$, $L$, $a$, $Q$), and eccentricity, inverse-latus rectum space ($e$, $μ$, $a$, $Q$). These conditions distribute various kinds of bound orbits in different regions of the ($E$, $L$) and ($e$, $μ$) planes, depending on which pair of roots of the effective potential forms a bound orbit. We provide a prescription to select these parameters for bound orbits, which are useful inputs to study bound trajectory evolution in various astrophysical applications like simulations of gravitational wave emission from extreme-mass ratio inspirals, relativistic precession around black holes, and the study of gyroscope precession as a test of general relativity.
description: 7 pages, 2 figures, Conference: Proceedings of the MG15 Meeting on General Relativity
title: Υπερφασματική απεικόνιση για την χαρτογράφηση χρωμοφόρων του δέρματος
title: Hyperspectral imaging for skin chromophore mapping
Creators: name: Τοντου Νικολεττα
Publisher: name: Technical University of Crete
Year: 2019

description: Η υπερφασματική απεικόνιση είναι μια μη-επεμβατική τεχνική, η οποία συνδυάζει την συμβατική απεικόνιση με την φασματοσκοπία, δίνοντας τόσο χωρικές όσο και φασματικές πληροφορίες για το εκάστοτε εξεταζόμενο δείγμα. Στην δερματολογία, οι πληροφορίες της υπερφασματικής απεικόνισης προέρχονται από την αλληλεπίδραση του φωτός με το δέρμα. Συγκεκριμένα, η ακτινοβολία που αντανακλά το δέρμα καθορίζεται κυρίως από τις χρωμοφόρες, οι οποίες αποτελούν τους βασικούς απορροφητές, σκεδαστές και φθοριστές του δέρματος.
Αυτή η πληροφορία, που καθορίζεται από τις χρωμοφόρες του δέρματος, μπορεί με την κατάλληλη επεξεργασία να δώσει αποτελέσματα για την κατάσταση του δέρματος, για ανωμαλίες ή για ασθένειες. Με τη χρήση της βιοψίας σε κακοήθειες, όπως είναι οι κακοήθεις δυσπλαστικοί σπίλοι, μπορεί να προκληθούν ανωμαλίες κατά την αφαίρεση του δείγματος είτε στο υπό εξέταση δείγμα είτε στον ιστό γύρω από αυτό. Όμως, με την υπερφασματική απεικόνιση διεξάγουμε οπτική βιοψία, βάσει της οποίας θα προσπαθήσουμε με την χρήση διάφορων αλγορίθμων επεξεργασίας του υπερφασματικού κύβου να βγάλουμε συμπεράσματα για την ποσότητα των χρωμοφόρων, την φυσιολογία του δέρματος και τις κυτταρικές διαφοροποιήσεις που τυχόν έχουν προκύψει. Με την εφαρμογή της υπερφασματικής απεικόνισης στο δέρμα αυξάνονται οι πιθανότητες σωστής διάγνωσης ή ακόμα και πρόληψης μιας κακοήθειας από τον θεραπευτή. Σκοπός, λοιπόν, είναι η βέλτιστη και έγκυρη διάγνωση δερματοπαθειών, χωρίς επεμβατικές τεχνικές. Σημαντικός είναι ο ρόλος της χαρτογράφησης, με την οποία αποδίδουμε στα αποτελέσματα των αλγορίθμων χρώματα, βάσει ενός χρωματικού κώδικα, ανάλογα με τις τιμές των εικονοστοιχείων της εικόνας. Η επεξεργασία αυτή καθιστά τα αποτελέσματα πιο ευδιάκριτα, μειώνοντας τις πιθανότητες λάθους από τον εξεταστή, ενώ ταυτόχρονα φαίνονται ευκρινέστερες οι διακυμάνσεις των τιμών στα αποτελέσματα.
A modified peer instruction protocol: peer versus teacher's instruction
Creators: name: Lan, Boon Leong
name: Lim, Pooi Mee
name: Ho, Patrick W. C.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Physics Education (physics.ed-ph)
subject: FOS: Physical sciences

description: Peer Instruction (PI) was introduced by Mazur to help students learn physics concepts during lectures. Besides physics, PI has also been adopted in other STEM fields. In this approach, students answer a related question individually after a concept has been presented. Before they revote on the same question individually, they are asked to convince others their answer is correct during peer discussion. The percentage of correct answer typically increased after peer discussion. However, Smith et al. highlighted that the improvement may be due to copying, not because students actually learned how to reason correctly. To exclude copying, Smith et al. modified Mazur's PI protocol by adding a second question Q2 after the students revote on the first question Q1. Q2 is 'isomorphic' to Q1, meaning that it requires the application of the same concept but the 'cover story' is different. The answer to Q1 is not revealed until after the individual vote on Q2. Here, we simplify Smith et al.'s PI protocol by removing the revote on Q1. Moreover, our Q1 and Q2 are similar, i.e. the same but some information given is different. Our PI protocol is thus the same as Mazur's, except the pre and post discussion questions are not exactly the same. We compare the effectiveness of PI, in our protocol, to teacher's instruction (TI) for a pair of similar questions, involving Lenz's law, using Hake's normalized gain and a statistical test.
description: Accepted for publication in the 'Physics Teacher' in 2023
Charging of dielectric surfaces in contact with aqueous electrolyte -- the influence of CO$_2$
Creators: name: Vogel, Peter
name: Möller, Nadir
name: Qaisrani, Muhammad Nawaz
name: Bista, Pravash
name: Weber, Stefan
name: Butt, Hans-Jürgen
name: Liebchen, Benno
name: Sulpizi, Marialore
name: Palberg, Thomas
Publisher: name: arXiv
Year: 2022
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The charge state of dielectric surfaces in aqueous environments is of fundamental and technological importance. Here, we study the influence of dissolved molecular CO$_2$ on the charging of three, chemically different surfaces (SiO$_2$, Polystyrene, Perfluorooctadecyltrichlorosilane). We determine their charge state from electrokinetic experiments. We compare an ideal, CO$_2$-free reference system to a system equilibrated against ambient CO$_2$ conditions. In the reference system, the salt-dependence is weakened for SiO$_2$ and inverted for the organic surfaces. We show that screening and pH-driven charge regulation alone cannot explain the observed effects. As additional cause, we tentatively suggest dielectric regulation of surface charges due to a diffusively adsorbed thin layer of molecular CO$_2$. The formation of such a dynamic layer even at the hydrophilic and partially ionized silica surfaces is supported by a minimal theoretical model and results from molecular simulations.
description: Extended and thoroughly revised version with newly generated data from MD simulation, improved interpretation, Main text and supplementary materials, 29 Pages, 17 figures, published in JACS
Individualization de la dette social et travail avec autrui
Creators: name: Astier, Isabel
Publisher: name: Locus Soci@l
Year: 2010

description: Dans cet article nous analyserons le grand retournement des conceptions et mécanismes de la solidarité sociale que il y a place dans l’actualité. Nous soulignerons ici à grands traits les gestes qui réorientent l’intervention sociale et transforment considérablement le travail social : la passage de la l’insertion à l’activation, la con[1]stitution de la proximité comme principe base et l’accompagnement comme dispositif nuclear des politiques sociales en face de la crise du modèle d’intégration sociale classique.
description: Locus Soci@l, No 4 (2010)
Eccentric equatorial trajectories around a Kerr black hole as a QPO model for M82X-1
Creators: name: Rana, Prerna
name: Mangalam, A.
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We study the bound orbit conditions for equatorial and eccentric orbits around a Kerr black hole both in the parameter space ($E$, $L$, $a$) representing the energy, angular momentum of the test particle, and spin of the black hole, and also ($e$, $μ$, $a$) space representing the eccentricity, inverse-latus rectum of the orbit, and spin. We apply these conditions and implement the relativistic precession (RP) model to M82X-1, which is an Intermediate-mass black hole (IMBH) system, where two high-frequency Quasi-Periodic Oscillations (HFQPOs) and a low-frequency QPO were simultaneously observed. Assuming that the QPO frequencies can also be generated by equatorial and eccentric trajectories, we calculate the probability distributions to infer $e$, $a$, and periastron distance, $r_p$, of the orbit giving rise to simultaneous QPOs. We find that an eccentric orbit solution is possible in the region between innermost stable circular orbit (ISCO) and the marginally bound circular orbit (MBCO) for $e=0.2768^{+0.0657}_{-0.0451}$, $a=0.2897 \pm 0.0087$, and $r_p=4.6164^{+0.0694}_{-0.1259}$.
description: 7 pages, 2 figures, Conference: Proceedings of the MG15 Meeting on General Relativity
Ibrahim Hakan Mert, Untersuchungen zur hellenistischen und kaiserzeitlichen Bauornamentik von Stratonikeia
Creators: name: Baier, Christoph
Publisher: name: Bonner Jahrbücher
Year: 2017

description: Rezension zu: Ibrahim Hakan Mert, Untersuchungen zur hellenistischen und kaiserzeitlichen Bauornamentik von Stratonikeia. Istanbuler Forschungen, Band 50. Verlag Ernst Wasmuth, Tübingen 2008. XIII und 285 Seiten mit 272 Abbildungen sowie 4 Tabellen
description: Bonner Jahrbücher, Bd. 209.2009(2011): Bonner Jahrbücher
The effects of transcription factor competition on gene regulation
Creators: name: Zabet, Nicolae Radu
name: Adryan, Boris
Publisher: name: arXiv
Year: 2013
Subjects: subject: Subcellular Processes (q-bio.SC)
subject: Molecular Networks (q-bio.MN)
subject: FOS: Biological sciences

description: Transcription factor (TF) molecules translocate by facilitated diffusion (a combination of 3D diffusion around and 1D random walk on the DNA). Despite the attention this mechanism received in the last 40 years, only a few studies investigated the influence of the cellular environment on the facilitated diffusion mechanism and, in particular, the influence of `other' DNA binding proteins competing with the TF molecules for DNA space. Molecular crowding on the DNA is likely to influence the association rate of TFs to their target site and the steady state occupancy of those sites, but it is still not clear how it influences the search in a genome-wide context, when the model includes biologically relevant parameters (such as: TF abundance, TF affinity for DNA and TF dynamics on the DNA). We performed stochastic simulations of TFs performing the facilitated diffusion mechanism, and considered various abundances of cognate and non-cognate TFs. We show that, for both obstacles that move on the DNA and obstacles that are fixed on the DNA, changes in search time are not statistically significant in case of biologically relevant crowding levels on the DNA. In the case of non-cognate proteins that slide on the DNA, molecular crowding on the DNA always leads to statistically significant lower levels of occupancy, which may confer a general mechanism to control gene activity levels globally. When the `other' molecules are immobile on the DNA, we found a completely different behaviour, namely: the occupancy of the target site is always increased by higher molecular crowding on the DNA. Finally, we show that crowding on the DNA may increase transcriptional noise through increased variability of the occupancy time of the target sites.
description: This is an updated version of the manuscript taking into account comments from reviewers
Insider Interest, Not Industry Influence: The Practice of Federal Reserve Bank Presidential Appointments
Creators: name: Hayes, William
Publisher: name: Columbia University
Year: 2019
Subjects: Federal Reserve banks
Monetary policy
Administrative agencies--Officials and employees--Selection and appointment
Public-private sector cooperation--Law and legislation

description: Conceived as a counterweight to public administration of monetary policy, the quasi-private Federal Reserve Banks now seem an institutional anomaly. The role that private interests play in Reserve Bank governance has prompted criticism that their anomalous structure renders the Reserve Banks unduly insulated and prone to financial industry influence. Yet a survey of the practical effect of the Reserve Banks’ unusual governance structure demonstrates not a privileging of private industry interests, but instead a pattern of elevating Federal Reserve System insiders, with potential involvement from publicly appointed Board of Governors of the Federal Reserve System. As a result, this Note argues that conventional fears of the consequences of Reserve Bank governance are largely unrealized. This pattern of elevating Federal Reserve System insiders, however, raises alternate concerns of institutional homogeneity. This Note thus advocates for transparency reforms aimed at mitigating these concerns—reforms that address not a problem of industry influence in Reserve Bank governance, but one of Federal Reserve System insularity.
Convergence of the Fefferman-Graham expansion and complex black hole anatomy
Creators: name: Serantes, Alexandre
name: Withers, Benjamin
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Given a set of sources and one-point function data for a Lorentzian holographic QFT, does the Fefferman-Graham expansion converge? If it does, what sets the radius of convergence, and how much of the interior of the spacetime can be reconstructed using this expansion? As a step towards answering these questions we consider real analytic CFT data, where in the absence of logarithms, the radius is set by singularities of the complex metric reached by analytically continuing the Fefferman-Graham radial coordinate. With the conformal boundary at the origin of the complex radial plane, real Lorentzian submanifolds appear as piecewise paths built from radial rays and arcs of circles centred on the origin. This allows singularities of Fefferman-Graham metric functions to be identified with gauge-invariant singularities of maximally extended black hole spacetimes, thereby clarifying the physical cause of the limited radius of convergence in such cases. We find black holes with spacelike singularities can give a radius of convergence equal to the horizon radius, however for black holes with timelike singularities the radius is smaller. We prove that a finite radius of convergence does not necessarily follow from the existence of an event horizon, a spacetime singularity, nor from caustics of the Fefferman-Graham gauge, by providing explicit examples of spacetimes with an infinite radius of convergence which contain such features.
description: 29 pages + appendices, 13 figures
Structure Property in Cu crystallization
Creators: name: Li, Bobin
Publisher: name: arXiv
Year: 2022
Subjects: subject: General Physics (physics.gen-ph)
subject: FOS: Physical sciences

description: Phase transition is a central topic in condensed matter physics, all the time. In this paper, as a general representative of phase transition, the Cu crystallization is discussed. And some physical quantities is defined to quantificationally describe the structure property in Cu crystallization, such as diffusion property and symmetry so on. As a result, it is indicated that there are some interesting changes of structure property in Cu crystallization.
De la compassion à la culpabilisation des pauvres. Vers un nouveau régime de traitement da la pauvrété en Europe?
Creators: name: Paugam, Serge
Publisher: name: Locus Soci@l
Year: 2010

description: Dans cet article nous analyserons les changements qui se observent dans le domaine des politique sociales, nottament dans le contract social de l’assistance dans la pauvrété. Nous presenterons des lignes de tendence que siganlent la passage d’un régime de compassion vers un régime de culpabilisation des pauvres en Europe.
description: Locus Soci@l, No 4 (2010)
Standard Essential Patents and Antitrust Law: Balancing Innovation and Competition
Creators: name: Greene, Kyle L.
Publisher: name: Columbia University
Year: 2019
Subjects: Antitrust law
Patent laws and legislation
Internetworking (Telecommunication)
Intellectual property

description: Antitrust and patent law have always been uneasy allies. Although both seek to encourage innovation and competition in the long run, patent law does so primarily by granting creators exclusive fiefdoms over their intellectual property, and antitrust law does so primarily by proscribing firms from anticompetitive conduct. Yet today’s world is flush with patent-rich products and industries that depend on the fruitful, simultaneous application of both of these bodies of law. Industries reliant on flourishing networks, such as those in the information and communication technology sector, are particularly influenced by the intersection of antitrust and patent law.1 Because of the central importance of well-functioning networks to these industries, many have developed standard setting organizations (“SSOs”) to designate technical standards that ensure product compatibility and interoperability between offerings from different firms. These standards incorporate many specific patents, known as standard essential patents (“SEPs”). Further, standards promulgated by SSOs oblige SEP holders to license their SEPs to implementers of the standard in a fair, reasonable, and non-discriminatory (“FRAND”) fashion.2 As a result, SEP holders and their counterparties stand, precariously, where antitrust and patent law meet. This Note will argue that an SEP holder who violates their FRAND commitments by unilaterally refusing to deal with a prospective implementer of the relevant standard should be presumed to have antitrust liability under Section 2 of the Sherman Act. In other words, such a firm should be presumed to have market power and to have participated in exclusionary conduct with anticompetitive effects. Part I will describe the landscape of standard setting, its effect on competition, and the place of antitrust and patent law in the standards landscape. Part II will explore the antitrust case law concerning refusals to deal in greater depth, paying particular attention to cases involving intellectual property and patents. Finally, Part III will build off of the previous two Parts to make and justify the argument that SEP holders should face a presumption that they have violated Section 2 of the Sherman Act when they violate their FRAND commitments by refusing to deal.
Devir do estado providência e trabalho social
Creators: name: Castel, Robert
Publisher: name: Locus Soci@l
Year: 2010

description: O devir do Estado Providência e o Trabalho Social estiveram profundamente ligados durante o período de crescimento económico e progresso social no período após a segunda guerra mundial até meados da década de 1970. O mandato do trabalho social é, então, o de assumir uma parte do papel emancipatório e protector do Estado relativamente aos grupos de pessoas que, por diversas razões, sofrem défice de integração. Hoje, essa sinergia parece ter sido perdida. Os trabalhadores sociais são confrontados com novos públicos, cujo principal problema não é tanto um défice pessoal de inaptidão como a dificuldade de ocupar um lugar estável na sociedade devido a conjuntura social e económica. Enquanto isso, o Estado de Bem-Estar perdeu grande parte de seu poder para assegurar, com base num trabalho protegido, a integração social da grande maioria da população. Confrontado com estes novos desafios, o trabalho social alarga-se e recompõe-se (cf. a política de inserção e desenvolvimento de políticas do território). Ao mesmo tempo, o Estado de Bem-Estar procura através da descentralização e medidas de «activação das despesas passivas», os meios para ser mais ágil, mais flexível, mais próximo dos interesses dos utentes e da especificidade das situações locais. Deve-se estar atento para as aberturas que este tipo de desenvolvimento poderia promover. Mas também devem ser assinaladas as ambiguidades que envolve, quanto ao risco de deixar os indivíduos mais vulneráveis face à hegemonia das autoridades locais. O que quer que possam ser no futuro, o devir do Estado de Bem- -Estar e do trabalho social deveriam continuar a enquadrar as intervenções sociais como parte do exercício de um direito garantido pelos poderes públicos.
description: Locus Soci@l, No 4 (2010)
Integrated Multiscale Domain Adaptive YOLO
Creators: name: Hnewa, Mazin
name: Radha, Hayder
Publisher: name: arXiv
Year: 2022
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: The area of domain adaptation has been instrumental in addressing the domain shift problem encountered by many applications. This problem arises due to the difference between the distributions of source data used for training in comparison with target data used during realistic testing scenarios. In this paper, we introduce a novel MultiScale Domain Adaptive YOLO (MS-DAYOLO) framework that employs multiple domain adaptation paths and corresponding domain classifiers at different scales of the recently introduced YOLOv4 object detector. Building on our baseline multiscale DAYOLO framework, we introduce three novel deep learning architectures for a Domain Adaptation Network (DAN) that generates domain-invariant features. In particular, we propose a Progressive Feature Reduction (PFR), a Unified Classifier (UC), and an Integrated architecture. We train and test our proposed DAN architectures in conjunction with YOLOv4 using popular datasets. Our experiments show significant improvements in object detection performance when training YOLOv4 using the proposed MS-DAYOLO architectures and when tested on target data for autonomous driving applications. Moreover, MS-DAYOLO framework achieves an order of magnitude real-time speed improvement relative to Faster R-CNN solutions while providing comparable object detection performance.
description: This paper is a significantly expanded version of our 2021 ICIP paper arXiv:2106.01483 and includes new tools and architectures for improving the original MS-DAYOLO framework
A biografia enquanto género historiográfico: uma possibilidade para o estudo da história do serviço social
Creators: name: Santos, Maria Isabel Rodrigues Dos
Publisher: name: Locus Soci@l
Year: 2009

description: O presente artigo faz uma incursão sobre a possibilidade de aplicar o género biográfico ao estudo histórico do Serviço Social. Após mapear os (escassos) trabalhos produzidos com recurso a esta abordagem historiográfica, cuidaremos de apresentar alguns traços distintivos do género biográfico no campo disciplinar histórico, e de analisar as suas tendências mais recentes, em que se destaca: o interesse pela “biografia ordinária”; a articulação entre a trajectória individual e o contexto mais amplo em que esta se desenrola; e a apreensão dos vários planos de existência do biografado. Segue-se a formulação de uma hipótese concreta para aplicar o género biográfico ao estudo da história do Serviço Social em Portugal: a compreensão do percurso biográfico de Marie-Thérèse Lévêque, na sua articulação com o Instituto de Serviço Social de Lisboa (1935-44).
description: Locus Soci@l, No 3 (2009)
Judy Collins
Creators: name: (:Unav)
Publisher: name: Columbia University
Year: 2019

description: Bob plays a number of Judy Collins songs, including "Golden Apples of the Sun", "Bonnie Ship the Diamond", "Little Brown Dog", "I Know Where I'm Going", "Turn Turn Turn", "Twelve Gates to the City", "Farewell", "Maid of Constant Sorrow", and "Deportee
Robust Hybrid Learning With Expert Augmentation
Creators: name: Wehenkel, Antoine
name: Behrmann, Jens
name: Hsu, Hsiang
name: Sapiro, Guillermo
name: Louppe, Gilles
name: Jacobsen, Jörn-Henrik
Publisher: name: arXiv
Year: 2022
Subjects: subject: Machine Learning (cs.LG)
subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences

description: Hybrid modelling reduces the misspecification of expert models by combining them with machine learning (ML) components learned from data. Similarly to many ML algorithms, hybrid model performance guarantees are limited to the training distribution. Leveraging the insight that the expert model is usually valid even outside the training domain, we overcome this limitation by introducing a hybrid data augmentation strategy termed \textit{expert augmentation}. Based on a probabilistic formalization of hybrid modelling, we demonstrate that expert augmentation, which can be incorporated into existing hybrid systems, improves generalization. We empirically validate the expert augmentation on three controlled experiments modelling dynamical systems with ordinary and partial differential equations. Finally, we assess the potential real-world applicability of expert augmentation on a dataset of a real double pendulum.
Phase transitions, hysteresis, and hyperbolicity for self-organized alignment dynamics
Creators: name: Degond, Pierre
name: Frouvelle, Amic
name: Liu, Jian-Guo
Publisher: name: arXiv
Year: 2013
Subjects: subject: Analysis of PDEs (math.AP)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: We provide a complete and rigorous description of phase transitions for kinetic models of self-propelled particles interacting through alignment. These models exhibit a competition between alignment and noise. Both the alignment frequency and noise intensity depend on a measure of the local alignment. We show that, in the spatially homogeneous case, the phase transition features (number and nature of equilibria, stability, convergence rate, phase diagram, hysteresis) are totally encoded in how the ratio between the alignment and noise intensities depend on the local alignment. In the spatially inhomogeneous case, we derive the macroscopic models associated to the stable equilibria and classify their hyperbolicity according to the same function.
description: Archive for Rational Mechanics and Analysis (2014) accepted
Unrolled Optimization with Deep Learning-based Priors for Phaseless Inverse Scattering Problems
Creators: name: Deshmukh, Samruddhi
name: Dubey, Amartansh
name: Murch, Ross
Publisher: name: arXiv
Year: 2022
Subjects: subject: Signal Processing (eess.SP)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Inverse scattering problems, such as those in electromagnetic imaging using phaseless data (PD-ISPs), involve imaging objects using phaseless measurements of wave scattering. Such inverse problems can be highly non-linear and ill-posed under extremely strong scattering conditions such as when the objects have very high permittivity or are large in size. In this work, we propose an end-to-end reconstruction framework using unrolled optimization with deep priors to solve PD-ISPs under very strong scattering conditions. We incorporate an approximate linear physics-based model into our optimization framework along with a deep learning-based prior and solve the resulting problem using an iterative algorithm which is unfolded into a deep network. This network not only learns data-driven regularization, but also overcomes the shortcomings of approximate linear models and learns non-linear features. More important, unlike existing PD-ISP methods, the proposed framework learns optimum values of all tunable parameters (including multiple regularization parameters) as a part of the framework. Results from simulations and experiments are shown for the use case of indoor imaging using 2.4 GHz phaseless Wi-Fi measurements, where the objects exhibit extremely strong scattering and low-absorption. Results show that the proposed framework outperforms existing model-driven and data-driven techniques by a significant margin and provides up to 20 times higher validity range.
description: This work has been submitted to IEEE for possible publication
A construção da acção colectiva em processos de desenvolvimento sócio-territorial
Creators: name: Ramos, Teresa Margarida
Publisher: name: Locus Soci@l
Year: 2009

description: O presente artigo tem como ponto de partida os desafios que a questão social e urbana colocam na implementação de processos de intervenção sócio-territorial, nomeadamente em termos da construção da acção colectiva, que constitui hoje um requisito intrínseco à administração das politicas públicas territoriais. Contudo, a construção da acção colectiva revela-se um campo instável, onde a mobilização dos actores não é inata, nem emerge de forma automática, e pressupõe a capacidade de desvendar as justificações e lógicas de acção dos actores em presença, bem como as tensões e contradições que aí se estabelecem e desenvolvem.
description: Locus Soci@l, No 3 (2009)
May the Fourth Be with You: Charting the Future of Corporate Liability Under the Alien Tort Statute After Jesner v. Arab Bank
Creators: name: Estes, Benjamin
Publisher: name: Columbia University
Year: 2019
Subjects: Human rights
Liability (Law)
Extraterritoriality
International business enterprises

description: The Alien Tort Statute ( the “ATS”) has been the subject of much curiosity ever since it became a conduit for human rights lawsuits nearly 40 years ago. Many of these lawsuits have been directed at corporate defendants, with businesses around the world accused of conscience-shocking behavior. However, the Supreme Court has in recent years restricted the scope of corporate ATS liability. In 2013, the Court held in Kiobel that the presumption against extraterritoriality applies to the ATS, and in 2018, it held in Jesner that foreign corporations cannot be sued under the ATS. In the wake of these developments, observers have questioned whether the statute’s vitality is reaching its end. This Note charts the path forward for the ATS. After tracing the development of the statute from its murky Founding origins to its modern incarnation as a powerful litigation tool, the Note examines how several circuits have analyzed the issues of corporate liability and the presumption against extraterritoriality under the ATS. The Note ultimately argues that the Fourth Circuit’s approach provides the best regime for the ATS in light of Jesner and the other considerations that have long informed ATS cases.
Claro. Lernwortschatz Latein. Hrsg. v. Armin Höfer unter Mitw. v. Carsten Ahrens [u. a.] unter berat. Mitarb. v. Alfred Bertram [u. a.]
Creators: name: Victor, Ulrich
Publisher: name: Forum Classicum
Year: 2017

description: Rezension zu: Claro. Lernwortschatz Latein. Hrsg. v. Armin Höfer unter Mitw. v. Carsten Ahrens [u. a.] unter berat. Mitarb. v. Alfred Bertram [u. a.]. Berlin: Cornelsen 2001.160 S. (ISBN 3-464-79752-2).
description: Forum Classicum, Nr. 2 (2001): Forum Classicum