cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
title: Comparing Domestic Assaults in Military and Non-Military Populations: A Test of Social Learning Theory
Creators: name: Carey, Crystal S.
Publisher: name: Old Dominion University
publisherIdentifier: https://ror.org/04zjtrb98
publisherIdentifierScheme: ROR
Year: 2005

description: This study examined factors relating to the severity of domestic assaults in military and non-military populations by examining a sample of 599 clients admitted to battered women's shelters over a 22-month period. This study addressed the following question: What differences, if any, exist between the severity of domestic assaults committed by military and non-military offenders, and what explains those differences?

The following factors as they may relate to severity of domestic assault are measured: batterer race, batterer income, victim income, batterer military status, and weapon involvement. Analyses reveal no significant differences in injury severity between assaults perpetrated by military and non-military offenders. Batterer income was the only significant predictor of severity of injury in this study.
The Dusty Evolved Star Kit (DESK): A Python package for fitting the Spectral Energy Distribution of Evolved Stars
Creators: name: Goldman, Steven R.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: One of the few ways that we can understand the environment around dusty stars and how much material they contribute back to the Universe, is by fitting their brightness at different wavelengths with models that account for how the energy transfers through the dust. The DESK is a python package designed to compare the best fits of different stellar samples and model grids for a better understanding of the results and their uncertainties. The package fits the Spectral Energy Distribution (SED) of evolved stars, using photometry or spectra, to grids of radiative transfer models using a least-squares method. The package includes newly created grids using a variety of different dust species, and state-of-the-art dust growth grids. A robust method for testing different model grids will be particularly important given the wealth of infrared data to come from the James Webb Space Telescope (JWST).
description: Published in JOSS
The labour market implications of job quality
Creators: name: Vahey, Shaun Patrick
Publisher: name: University of British Columbia
Year: 2009

description: This thesis takes the form of three essays about the labour market implications of job quality. In the first essay, I demonstrate, by analysing a two-type, two-period example, that high introductory wage offers can signal the quality of experience jobs. In this game, one type of firm - the “good” type - offers higher expected quality jobs. If this type is less likely to exit from the industry than the “bad’ type, it can increase expenditure on introductory wages without being mimicked, distinguishing it from its inferior. The game has many equilibria with these separating wages. In each, the introductory compensating differentials have the opposite sign to the usual case: higher expected quality jobs pay more, rather than less. In the second essay, I present Canadian evidence that tests and supports the theory of compensating differentials for a variety of job characteristics. The data used are from the National Survey of Class Structure and Labour Process in Canada (NSCS). These self-report data are preferable to the more conventional occupational-trait data; they provide information on individual jobs rather than averages across broad occupational categories and industries. In the third essay, I focus on the mismatch between the educational requirements of jobs and the educational attainments of workers. Using NSCS data, I find that the returns to over- and undereducation for males are sensitive to the level of required education. There is evidence of positive returns to overeducation for jobs that require a university bachelor’s degree; but, in general, the returns are insignificant. Undereducated workers are penalised in jobs with low educational requirements. For females, I find that the returns to over- and undereducation are insignificant for all levels of required education.
$SU(1,1)$ covariant $s$-parametrized maps
Creators: name: Klimov, Andrei B.
name: Seyfarth, Ulrich
name: de Guise, Hubert
name: Sanchez-Soto, L. L.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We propose a practical recipe to compute the ${s}$-parametrized maps for systems with $SU(1,1)$ symmetry using a connection between the ${Q}$ and ${P} $ symbols through the action of an operator invariant under the group. The particular case of the self-dual (Wigner) phase-space functions, defined on the upper sheet of the two-sheet hyperboloid (or, equivalently, inside the Poincaré disc) are analyzed.
description: 18 pages, 3 figures. Comments welcome!
Literarische Bilder des multikulturellen Berlin in Yadé Karas Selam Berlin und Wladimir Kaminers´ Russendisko.:
Creators: name: Βαρσάμη, Ελένη Απόστολου
Publisher: name: Aristotle University of Thessaloniki
Year: 2011
Subjects: Βερολίνο
Λογοτεχνικές εικόνες
Berlin
Images

description: Σκοπός της διπλωματικής εργασίας ήταν να παρουσιάσει την εικόνα του πολυπολιτισμικού Βερολίνου στο παράδειγμα των δύο έργων, το Selam Berlin της Yadé Kara και το Russendisko του Wladimir Kaminer.
description: The aim of the present thesis was to present the images of the multicultural Berlin in Yadé Karas Selam Berlin and Wladimir Kaminers Russendisko.
Density Perturbations in Chain Inflation
Creators: name: Feldstein, Brian
name: Tweedie, Brock
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We consider the model of ``Chain Inflation,'' in which the period of inflation in our universe took the form of a long sequence of quantum tunneling events. We find that in the simplest such scenario, in which the tunneling processes are uniform, approximately 10^4 vacua per e-folding of inflation are required in order that the density perturbations produced are of an acceptable size. We arrive at this conclusion through a combination of analytic and numerical techniques, which could also serve as starting points for calculations with more general sets of assumptions.
description: 28 pages, 16 figures; v2: corrected typos, increased resolution on D=2+1 data points
Dominant two-loop electroweak corrections to the hadroproduction of a pseudoscalar Higgs boson and its photonic decay
Creators: name: Brod, Joachim
name: Fugel, Frank
name: Kniehl, Bernd A.
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We present the dominant two-loop electroweak corrections to the partial decay widths to gluon jets and prompt photons of the neutral CP-odd Higgs boson A^0, with mass M_{A^0} < 2 M_W, in the two-Higgs-doublet model for low to intermediate values of the ratio tan(beta) = v_2/v_1 of the vacuum expectation values. They apply as they stand to the production cross sections in hadronic and two-photon collisions, at the Tevatron, the LHC, and a future photon collider. The appearance of three gamma_5 matrices in closed fermion loops requires special care in the dimensional regularization of ultraviolet divergences. The corrections are negative and amount to several percent, so that they fully compensate or partly screen the enhancement due to QCD corrections.
description: 9 pages, 3 figures
A closed expression for the UV-divergent parts of one-loop tensor integrals in dimensional regularization
Creators: name: Sulyok, Georg
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Starting from the general definition of a one-loop tensor N-point function, we use its Feynman parametrization to calculate the UV-divergent part of an arbitrary tensor coefficient in the framework of dimensional regularization. In contrast to existing recursion schemes, we are able to present a general analytic result in closed form that enables direct determination of the UV-divergent part of any one-loop tensor N-point coefficient independent from UV-divergent parts of other one-loop tensor N-point coefficients. Simplified formulas and explicit expressions are presented for A-, B-, C-, D-, E-, and F-functions.
description: 19 pages (single column), the result of previous versions is further evaluated leading to a closed analytic expression for the UV-divergent part of an arbitrary one-loop tensor coefficient, title is modified accordingly, a sign error in the appendix (C_{00000000}) has been corrected, a mathematica notebook containing an implementation of the newly derived formula is attached
The polarization-encoded self-coherent camera
Creators: name: Bos, Steven P.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: The exploration of circumstellar environments by means of direct imaging to search for Earth-like exoplanets is one of the challenges of modern astronomy. One of the current limitations are evolving non-common path aberrations (NCPA) that originate from optics downstream of the main wavefront sensor. The self-coherent camera (SCC) is an integrated coronagraph and focal-plane wavefront sensor that generates wavefront information-encoding Fizeau fringes in the focal plane by adding a reference hole (RH) in the Lyot stop. Here, we aim to show that by featuring a polarizer in the RH and adding a polarizing beamsplitter downstream of the Lyot stop, the RH can be placed right next to the pupil. We refer to this new variant of the SCC as the polarization-encoded self-coherent camera (PESCC). We study the performance of the PESCC analytically and numerically, and compare it, where relevant, to the SCC. We show analytically that the PESCC relaxes the requirements on the focal-plane sampling and spectral resolution with respect to the SCC by a factor of 2 and 3.5, respectively. Furthermore, we find via our numerical simulations that the PESCC has effectively access to $\sim$16 times more photons, which improves the sensitivity of the wavefront sensing by a factor of $\sim4$. We also show that without additional measurements, the RH point-spread function (PSF) can be calibrated using PESCC images, enabling coherent differential imaging (CDI) as a contrast-enhancing post-processing technique for every observation. In idealized simulations (clear aperture, charge two vortex coronagraph, perfect DM, no noise sources other than phase and amplitude aberrations) and in circumstances similar to those of space-based systems, we show that WFSC combined with CDI can achieve a $1σ$ raw contrast of $\sim3\cdot10^{-11}- 8 \cdot 10^{-11}$ between 1 and 18 $λ/ D$.
description: Accepted for publication in A&A. Shortened abstract. 17 pages, 21 figures
Die Rolle der Krankheit im Werk Christa Wolfs an ausgewählten Beispielen: “ Medea.Stimmen”, “Kassandra” “Leibhaftig”.:
Creators: name: Μυλωνά, Μαρία Δημητρίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2011
Subjects: Nόσος
Υγιής
Θύμα
Disease
Ηealthy
Victim

description: Σκοπός της Μεταπτυχιακής εργασίας ήταν η μελέτη της Νόσου, το πώς μπορεί να προκαλείται και να συνυπάρχει με κοινωνικές, πολιτικές και ψυχολογικές εξελίξεις αλλά και ανθρώπινες ευαισθησίες σε επιλεγμένα έργα της Christa Wolf. Η συγγραφέας αφιερώνει στη νόσο ιδιαίτερη προσοχή, αφού η ασθένεια μπορεί από τη μία πλευρά να χρησιμοποιείται ως καταφύγιο για ευαίσθητες ψυχές ή μπορεί να μετατραπεί σε αρνητικό μετοχικό κεφάλαιο και από την πλειοψηφία δηλαδή να χρησιμοποιηθεί ως όπλο κατά της μειονότητας. Είναι δυσάρεστο το γεγονός ότι η κοινωνία χρησιμοποιώντας τη νόσο μπορεί να περιθωριοποιήσει ανθρώπους αντίθετους στα κοινωνικά και πολιτικά δρώμενα, αποκαλώντας τους παράφρονες. Αποτέλεσμα αυτού του αποκλεισμού ήταν η απομόνωση τους, η εσωστρέφεια και η καταστροφή της ψυχής τους. Ακόμη αναφερθήκαμε στη ιδιαιτερότητα του ονείρου που συνδέεται παράλληλα με την ψυχική ασθένεια. Το άτομο στο όνειρο, όπως και στην ασθένειά του, μπορεί να είναι ο εαυτός του και δεν λαμβάνει υπόψη του εξωτερικές επιρροές. Δηλαδή η ασθένεια προσφέρει ένα καταφύγιο, προστατεύοντας τους από εξωτερικές επιρροές, και τους στερεί τις αισθήσεις ανοίγοντας χώρο για την νόσο. Έτσι έχουν τουλάχιστον στο μυαλό τους τη δυνατότητα να είναι οι εαυτοί τους.
description: The aim of the thesis was the study the disease, how it can be caused to coexist with social, political and psychological development but also with human sensitivities by selected works of Christa Wolf. The author devotes special attention to the disease, since the disease can be used one the one hand as a shelter for sensitive souls, or may be converted on the other hand from the majority to negative equity to use it as a weapon against minority. It is regrettable that society by using the disease can marginalize people who are opposed to social and political processes by calling them insane. The result of this exclusion was not only the isolation of this people, but also the introversion and destruction of their own souls. We even mentioned the specificity of the dream which is connected in several parallel ways with mental illness. The person in his dreams, just as in his disease, can be himself and does not take into account external influences. That is because, the disease offers a shelter, protecting them from external influences, and deprives them of their senses by opening space for the disease. So at least in their minds the have a possibility be their selves.
Hidden fermion as milli-charged dark matter in Stueckelberg Z' model
Creators: name: Cheung, Kingman
name: Yuan, Tzu-Chiang
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We augment the hidden Stueckelberg $Z'$ model by a pair of Dirac fermions in the hidden sector, in which the $Z'$ has a coupling strength comparable to weak scale coupling. We show that this hidden fermion-antifermion pair could be a milli-charged dark matter candidate with a viable relic density. Existing terrestrial and astrophysical searches on milli-charged particles do not place severe constraints on this hidden fermion. We calculate the flux of monochromatic photons coming from the Galactic center due to pair annihilation of these milli-charged particles and show that it is within reach of the next generation $γ$-ray experiments. The characteristic signature of this theoretical endeavor is that the Stueckelberg $Z'$ boson has a large invisible width decaying into the hidden fermion-antifermion pair. We show that existing Drell-Yan data do not constrain this model yet. Various channels of singly production of this $Z'$ boson at the LHC and ILC are explored.
description: 24 pages with 7 embedded figures. Published version
Systematic quantum corrections to screening in thermonuclear fusion
Creators: name: Chitanvis, Shirish M.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: Nuclear Theory (nucl-th)
subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: We develop a series expansion of the plasma screening length away from the classical limit in powers of $\hbar^{2}$. It is shown that the leading order quantum correction increases the screening length in solar conditions by approximately 2% while it decreases the fusion rate by approximately $ 0.34%$. We also calculate the next higher order quantum correction which turns out to be approximately 0.05%.
TB2J: a python package for computing magnetic interaction parameters
Creators: name: He, Xu
name: Helbig, Nicole
name: Verstraete, Matthieu J.
name: Bousquet, Eric
Publisher: name: arXiv
Year: 2020
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We present TB2J, a Python package for the automatic computation of magnetic interactions, including exchange and Dzyaloshinskii-Moriya interactions, between atoms of magnetic crystals from the results of density functional calculations. The program is based on the Green's function method with the local rigid spin rotation treated as a perturbation. As input,the package uses the output of either Wannier90, which is interfaced with many density functional theory packages,or of codes based on localized orbitals. A minimal user input is needed, which allows for easy integration into high-throughput workflows. The package is open source under BSD 2-Clause license, available at https://github.com/mailhexu/TB2J.
Fusing Optical and SAR time series for LAI gap filling with multioutput Gaussian processes
Creators: name: Pipia, Luca
name: Muñoz-Marí, Jordi
name: Amin, Eatidal
name: Belda, Santiago
name: Camps-Valls, Gustau
name: Verrelst, Jochem
Publisher: name: arXiv
Year: 2020
Subjects: subject: Image and Video Processing (eess.IV)
subject: Machine Learning (cs.LG)
subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: Machine Learning (stat.ML)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences
subject: FOS: Physical sciences

description: The availability of satellite optical information is often hampered by the natural presence of clouds, which can be problematic for many applications. Persistent clouds over agricultural fields can mask key stages of crop growth, leading to unreliable yield predictions. Synthetic Aperture Radar (SAR) provides all-weather imagery which can potentially overcome this limitation, but given its high and distinct sensitivity to different surface properties, the fusion of SAR and optical data still remains an open challenge. In this work, we propose the use of Multi-Output Gaussian Process (MOGP) regression, a machine learning technique that learns automatically the statistical relationships among multisensor time series, to detect vegetated areas over which the synergy between SAR-optical imageries is profitable. For this purpose, we use the Sentinel-1 Radar Vegetation Index (RVI) and Sentinel-2 Leaf Area Index (LAI) time series over a study area in north west of the Iberian peninsula. Through a physical interpretation of MOGP trained models, we show its ability to provide estimations of LAI even over cloudy periods using the information shared with RVI, which guarantees the solution keeps always tied to real measurements. Results demonstrate the advantage of MOGP especially for long data gaps, where optical-based methods notoriously fail. The leave-one-image-out assessment technique applied to the whole vegetation cover shows MOGP predictions improve standard GP estimations over short-time gaps (R$^2$ of 74\% vs 68\%, RMSE of 0.4 vs 0.44 $[m^2m^{-2}]$) and especially over long-time gaps (R$^2$ of 33\% vs 12\%, RMSE of 0.5 vs 1.09 $[m^2m^{-2}]$).
description: 43 pages, 12 figures
Δίκτυα ουρών αναμονής και Προσομοίωση: εφαρμογή σε συστήματα εξυπηρέτησης:
Creators: name: Μπασδάρας, Πέτρος Θεοδώρου
Publisher: name: Aristotle University of Thessaloniki
Year: 2011
Subjects: Συστήματα ουρών
Προσομοίωση
Θεωρία αναμονής
Queuering systems
Simulation
Queuering theory

description: Η παρούσα εργασία πραγματοποιήθηκε στα πλαίσια του Διατμηματικού Προγράμματος Μεταπτυχιακών Σπουδών «Πληροφορική και Διοίκηση». Σκοπός της εργασίας είναι μέσα από την ανάλυση της θεωρίας των ουρών αναμονής σε συνδυασμό με την θεωρία της προσομοίωσης να παρουσιάσουμε και να εφαρμόσουμε δύο κλασικά παραδείγματα σε συστήματα εξυπηρέτησης. Πέρα από το θεωρητικό κομμάτι, στην εργασία δόθηκε μεγάλο βάρος στην ανάπτυξη της προσομοίωσης μιας ουράς αναμονής σε ένα νοσοκομείο και σε μια τράπεζα. Στο πρώτο κεφάλαιο αναφερόμαστε στα συστήματα ουρών και σε ορισμένα χαρακτηριστικά τους όπως η πειθαρχία μιας ουράς και οι χρόνοι εξυπηρέτησης. Στο δεύτερο κεφάλαιο γίνεται μια εισαγωγή στη θεωρία αναμονής και σε κάποιες βασικές έννοιες και θεωρήματα. Στο τρίτο κεφάλαιο γίνεται μια αναφορά στα δίκτυα ουρών αναμονής. Στο τέταρτο κεφάλαιο παρουσιάζουμε το τελικό μοντέλο δηλαδή το νοσοκομείο ως ένα σύστημα ουρών και τέλος το προσομοιώνουμε με το πρόγραμμα mathematica και συλλέγουμε τα δεδομένα. Στο έκτο κεφάλαιο εισάγουμε τη θεωρία της προσομοίωσης και στο έβδομο κεφάλαιο πραγματοποιούμε τη δεύτερη μας εφαρμογή προσομοιώνοντας μια ουρά αναμονής πελατών σε μια τράπεζα στο Excel. Στα τρία τελευταία κεφάλαια γίνεται αναφορά στα συμπεράσματα που αποκομίσαμε, στη βιβλιογραφία με την οποία ασχοληθήκαμε και τέλος στο παράρτημα δίνουμε κάποιες διευκρινήσεις σχετικά με την προσομοίωση στο Excel και την εφαρμογή με την τράπεζα.
description: The present work was realized in the frames of Interdepartmental Program of Postgraduate Study “Information technology and Administration”. Aim of work is through the analysis of queueing theory in combination with the simulation theory to present and to apply two classic examples in service systems. Beyond the theoretical part, in the work was given great importance in the simulation of a queue in a hospital and in a bank. The first chapter refers to the queueing systems and to their certain characteristics as the discipline of a queue and the service time. In the second chapter is introduced the queueing theory and certain basic significances and theorems. In the third chapter is given a report in the queueing networks. In the fourth chapter we present the final model that is to say the hospital as a queueing system and we finally simulate with the program “mathematica” and collect the data. In the sixth chapter we introduce the simulation theory and in the seventh chapter we implement our second application by simulate a queue of customers in a bank in Excel. The last three chapters refer to the conclusions that we acquire the bibliography with which we dealt and finally in the appendix we give some clarification with regard to the simulation in Excel and the application with the bank.
Irreversibility in active matter: General framework for active Ornstein-Uhlenbeck particles
Creators: name: Dabelow, Lennart
name: Eichhorn, Ralf
Publisher: name: arXiv
Year: 2020
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: Active matter systems are driven out of equilibrium by conversion of energy into directed motion locally on the level of the individual constituents. In the spirit of a minimal description, active matter is often modeled by so-called active Ornstein-Uhlenbeck particles (AOUPs), an extension of passive Brownian motion where activity is represented by an additional fluctuating non-equilibrium "force" with simple statistical properties (Ornstein-Uhlenbeck process). While in passive Brownian motion, entropy production along trajectories is well-known to relate to irreversibility in terms of the log-ratio of probabilities to observe a certain particle trajectory forward in time in comparison to observing its time-reversed twin trajectory, the connection between these concepts for active matter is less clear. It is therefore of central importance to provide explicit expressions for the irreversibility of active particle trajectories based on measurable quantities alone, such as the particle positions. In this technical note, we derive a general expression for the irreversibility of AOUPs in terms of path probability ratios (forward versus backward path), extending recent results from [PRX 9, 021009 (2019)] by allowing for arbitrary initial particle distributions and states of the active driving.
description: 14 pages
Lung Nodule Detection in Screening Computed Tomography
Creators: name: Gori, I.
name: Bellotti, R.
name: Cerello, P.
name: Cheran, S. C.
name: De Nunzio, G.
name: Fantacci, M. E.
name: Kasae, P.
name: Masala, G. L.
name: Martinez, A. Preite
name: Retico, A.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Medical Physics (physics.med-ph)
subject: FOS: Physical sciences

description: A computer-aided detection (CAD) system for the identification of pulmonary nodules in low-dose multi-detector helical Computed Tomography (CT) images with 1.25 mm slice thickness is presented. The basic modules of our lung-CAD system, a dot-enhancement filter for nodule candidate selection and a neural classifier for false-positive finding reduction, are described. The results obtained on the collected database of lung CT scans are discussed.
description: 3 pages, 4 figures; Proceedings of the IEEE NNS and MIC Conference, Oct. 29 - Nov. 4, 2006, San Diego, California
Activity-dependent regulation of -̆amino-3-hydroxy-5-methyl-4-isoxazole propionic acid (AMPA) receptors in rat neocortex
Creators: name: Lanius, Ruth Anne
Publisher: name: University of British Columbia
Year: 2009

description: The study of α-amino-3-hydroxy-5-methyl-isoxazole propionic acid (AMPA) receptors is of great interest given that these receptors mediate most fast excitatory synaptic neurotransmission in brain and are involved in neuroplastic phenomena such as long-term potentiation and long-term depression. Understanding the molecular mechanisms involved in the regulation of AMPA receptors may therefore provide insight into many aspects of neuronal function, including normal synaptic transmission and synaptic neuroplasticity. To assess activity-dependent regulation of cortical AMPA receptors, radioligand binding methods employing the competitive AMPA receptor antagonist[³H]-6-cyano-7- nitroquinoxaline-2,3-dione (CNQX) were used to study the effects of various regulatory stimuli on the agonist binding site of AMPA receptors in rat cortical slices. AMPA receptor regulation was studied in response to a variety of stimuli, including agonist (AM PA), pharmacological depolarization (veratridine + glutamate), as well as the phosphorylating enzymes calcium (Ca²+) /calmodulin-dependent kinase II (CaMKH) and protein kinase A (PKA). Treatment with AMPA or veratridine led to approximately 20% decreases in [³H]-CNQX binding. Similar decreases in[³H]-CNQX binding were seen following treatment with CaMKII (∼35%) and PKA (∼30%). The effects of AMPA and veratridine could be blocked by inhibitors of CaMKll and PKA, suggesting that phosphorylation reactions are involved in AMPA receptor regulation by AMPA and veratridine. Moreover, loperamide, a non specific inhibitor of voltage-gated Ca²⁺ channels was able to inhibit the AMPA and veratridine-induced regulation of AMPA receptors. These results suggested that AMPA and veratridine may result in the activation of voltage gated Ca²⁺ channels, in turn leading to changes in[³H]-CNQX binding through the activation of CaMKII and/or PKA. Ca²⁺ alone was able to decrease[³H]- CNQX binding over a concentration range of 0.1 to 1 mM, an effect which could be blocked by specific inhibitors of CaMKII or PKA. These data indicate that AMPA and veratridine, agents intended to mimic aspects of synaptic transmission, lead to the regulation of AMPA receptors via a Ca²⁺ influx through voltage-gated Ca²⁺ channels and the activation of specific phosphorylating enzymes. These results provide for a novel mechanism ot AMPA receptor regulation and may establish the framework for a clearer understanding of the modulation of synaptic activity in normal conditions, following modifications of synaptic strength, and in some forms of neuropathology.
Ergodic Transformations of the Space of $p$-adic Integers
Creators: name: Anashin, Vladimir
Publisher: name: arXiv
Year: 2006
Subjects: subject: Dynamical Systems (math.DS)
subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: 37A25, 37A05, 11S80

description: Let $\mathcal L_1$ be the set of all mappings $f\colon\Z_p\Z_p$ of the space of all $p$-adic integers $\Z_p$ into itself that satisfy Lipschitz condition with a constant 1. We prove that the mapping $f\in\mathcal L_1$ is ergodic with respect to the normalized Haar measure on $\Z_p$ if and only if $f$ induces a single cycle permutation on each residue ring $\Z/p^k\Z$ modulo $p^k$, for all $k=1,2,3,...$. The multivariate case, as well as measure-preserving mappings, are considered also. Results of the paper in a combination with earlier results of the author give explicit description of ergodic mappings from $\mathcal L_1$. This characterization is complete for $p=2$. As an application we obtain a characterization of polynomials (and certain locally analytic functions) that induce ergodic transformations of $p$-adic spheres. The latter result implies a solution of a problem (posed by A.~Khrennikov) about the ergodicity of a perturbed monomial mapping on a sphere.
description: To be published in Proceedings of the 2-nd Int'l Conference on p-adic Mathematical Physics (15-25 Sept., 2005, Belgrade)
Generalized Fokker-Planck equation, Brownian motion, and ergodicity
Creators: name: Plyukhin, A. V.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Dynamical Systems (math.DS)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: Microscopic theory of Brownian motion of a particle of mass $M$ in a bath of molecules of mass $m\ll M$ is considered beyond lowest order in the mass ratio $m/M$. The corresponding Langevin equation contains nonlinear corrections to the dissipative force, and the generalized Fokker-Planck equation involves derivatives of order higher than two. These equations are derived from first principles with coefficients expressed in terms of correlation functions of microscopic force on the particle. The coefficients are evaluated explicitly for a generalized Rayleigh model with a finite time of molecule-particle collisions. In the limit of a low-density bath, we recover the results obtained previously for a model with instantaneous binary collisions. In general case, the equations contain additional corrections, quadratic in bath density, originating from a finite collision time. These corrections survive to order $(m/M)^2$ and are found to make the stationary distribution non-Maxwellian. Some relevant numerical simulations are also presented.
Modern compact star observations and the quark matter EoS
Creators: name: Klahn, T.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: A hybrid equation of state for dense matter is presented that satisfies phenomenological constraints from modern compact star observations which indicate high maximum masses of about 2 M_sun and large radii of R> 12 km. The corresponding isospin symmetric equation of state is consistent with flow data analyses of heavy-ion collisions. The transition from nuclear to two-flavor color superconducting quark matter at n approximately 0.55 fm^{-3} is almost a crossover.
description: 2 pages, 2 figures; Proceedings of the Erice School on 'Radioactive Beams, Nuclear Dynamics and Astrophysics' to be published in 'Prog. Part. Nucl. Phys.'
Comment on "Trapped flux in a small crystal of CaKFe$_4$As$_4$ at ambient pressure and in a diamond anvil pressure cell" by S. L. Bud'ko et al
Creators: name: Hirsch, J. E.
name: Marsiglio, F.
Publisher: name: arXiv
Year: 2024
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: In their paper arXiv:2405.08189, Supercond. Sci. Technol. 37 (2024) 065010 [1], Bud'ko et al. present experimental results for trapped magnetic flux for a tiny sample of a type II superconductor. The paper aims to provide evidence in support of the interpretation that similar measurements performed in samples of hydrogen-rich materials under high pressure by Minkov, Bud'ko and coauthors [2] are conclusive evidence [3] for superconductivity in hydrides under pressure. Here we point out that the new evidence presented by Bud'ko et al. [1] further supports our interpretation [4],[5] that the reported measurements of trapped flux on hydrides under pressure [2] are evidence that the samples are $not$ superconducting.
description: Comment on arXiv:2405.08189
Ergodic Capacity of Discrete- and Continuous-Time, Frequency-Selective Rayleigh Fading Channels with Correlated Scattering
Creators: name: Mittelbach, Martin
name: Mueller, Christian
name: Schubert, Konrad
Publisher: name: arXiv
Year: 2007
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: We study the ergodic capacity of a frequency-selective Rayleigh fading channel with correlated scattering, which finds application in the area of UWB. Under an average power constraint, we consider a single-user, single-antenna transmission. Coherent reception is assumed with full CSI at the receiver and no CSI at the transmitter. We distinguish between a continuous- and a discrete-time channel, modeled either as random process or random vector with generic covariance. As a practically relevant example, we examine an exponentially attenuated Ornstein-Uhlenbeck process in detail. Finally, we give numerical results, discuss the relation between the continuous- and the discrete-time channel model and show the significant impact of correlated scattering.
description: - presented at IEEE Globecom 2007 - version v3: substantially revised - version v4: correction of minor typing errors
Hot star wind models with new solar abundances
Creators: name: Krticka, Jiri
name: Kubat, Jiri
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We compare the hot star wind models calculated assuming older solar abundance determination with models calculated using the recently published values derived from 3D hydrodynamical model atmospheres. We show that the use of new abundances with lower metallicity improves the agreement between wind observation and theory in several aspects: (1) The predicted wind mass-loss rates are lower by a factor of 0.76. This leads to a better agreement with mass-loss rate determinations derived from observations with account of clumping. (2) As a result of the lowering of mass-loss rates, there is a better agreement between predicted modified wind momentum-luminosity relationship and that derived from observations with account of clumping. (3) Both the lower mass fraction of heavier elements and lower mass-loss rates lead to a decrease of the opacity in the X-ray region. This has influence on the prediction of the X-ray line profile shapes. (4) There is a better agreement between predicted PV ionization fractions and those derived from observations.
description: 4 pages, accepted for publication in Astronomy & Astrophysics Letters
title: Apfel-Unterlagen :
title: Richtlinien für die Durchführung der Prüfung auf Unterscheidbarkeit, Homogenität und Beständigkeit.
titleType: Subtitle
Creators: name: International Union For The Protection Of New Varieties Of Plants,
Publisher: name: International Union for the Protection of New Varieties of Plants,
Year: 0
Subjects: Group identity.
New Varieties of Plants
Apple Rootstocks

description: Zweck dieser Richtlinien („Prüfungsrichtlinien“) ist es, die in der Allgemeinen Einführung (Dokument TG/1/3) und deren verbundenen TGP-Dokumenten enthaltenen Grundsätze in detaillierte praktische Anleitung für die harmonisierte Prüfung der Unterscheidbarkeit, der Homogenität und der Beständigkeit (DUS) umzusetzen und insbesondere geeignete Merkmale für die DUS-Prüfung und die Erstellung harmonisierter Sortenbeschreibungen auszuweisen.
Observations on the Bias of Nonnegative Mechanisms for Differential Privacy
Creators: name: Glinchey, Aisling Mc
name: Mason, Oliver
Publisher: name: arXiv
Year: 2021
Subjects: subject: Cryptography and Security (cs.CR)
subject: Statistics Theory (math.ST)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics
subject: 68P27

description: We study two methods for differentially private analysis of bounded data and extend these to nonnegative queries. We first recall that for the Laplace mechanism, boundary inflated truncation (BIT) applied to nonnegative queries and truncation both lead to strictly positive bias. We then consider a generalization of BIT using translated ramp functions. We explicitly characterise the optimal function in this class for worst case bias. We show that applying any square-integrable post-processing function to a Laplace mechanism leads to a strictly positive maximal absolute bias. A corresponding result is also shown for a generalisation of truncation, which we refer to as restriction. We also briefly consider an alternative approach based on multiplicative mechanisms for positive data and show that, without additional restrictions, these mechanisms can lead to infinite bias.
Stabilization of Compactification Volume In a Noncommutative Mini-Super-Phase-Space
Creators: name: Khosravi, N.
name: Sepangi, H. R.
name: Sheikh-Jabbari, M. M.
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Astrophysics (astro-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We consider a class of generalized FRW type metrics in the context of higher dimensional Einstein gravity in which the extra dimensions are allowed to have different scale factors. It is shown that noncommutativity between the momenta conjugate to the internal space scale factors controls the power-law behavior of the scale factors in the extra dimensions, taming it to an oscillatory behavior. Hence noncommutativity among the internal momenta of the mini-super-\emph{phase}-space can be used to explain stabilization of the compactification volume of the internal space in a higher dimensional gravity theory.
description: 13 pages, 4 .eps figures; v2: References added
Predicted signatures of p-wave superfluid phases and Majorana zero modes of fermionic atoms in RF absorption
Creators: name: Grosfeld, Eytan
name: Cooper, Nigel R.
name: Stern, Ady
name: Ilan, Roni
Publisher: name: arXiv
Year: 2007
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We study the superfluid phases of quasi-2D atomic Fermi gases interacting via a p-wave Feshbach resonance. We calculate the absorption spectra of these phases under a hyperfine transition, for both non-rotating and rotating superfluids. We show that one can identify the different phases of the p-wave superfluid from the absorption spectrum. The absorption spectrum shows clear signatures of the existence of Majorana zero modes at the cores of vortices of the weakly-pairing $p_x+ip_y$ phase.
Quantum Econophysics
Creators: name: Hidalgo, Esteban Guevara
Publisher: name: arXiv
Year: 2006
Subjects: subject: Physics and Society (physics.soc-ph)
subject: General Finance (q-fin.GN)
subject: FOS: Physical sciences
subject: FOS: Economics and business

description: The relationships between game theory and quantum mechanics let us propose certain quantization relationships through which we could describe and understand not only quantum but also classical, evolutionary and the biological systems that were described before through the replicator dynamics. Quantum mechanics could be used to explain more correctly biological and economical processes and even it could encloses theories like games and evolutionary dynamics. This could make quantum mechanics a more general theory that we had thought. Although both systems analyzed are described through two apparently different theories (quantum mechanics and game theory) it is shown that both systems are analogous and thus exactly equivalents. So, we can take some concepts and definitions from quantum mechanics and physics for the best understanding of the behavior of economics and biology. Also, we could maybe understand nature like a game in where its players compete for a common welfare and the equilibrium of the system that they are members.
description: 9 pages. arXiv admin note: substantial text overlap with arXiv:physics/0609088, arXiv:quant-ph/0510238, arXiv:quant-ph/0606045
Signatures of bilayer Wigner crystals in a transition metal dichalcogenide heterostructure
Creators: name: Zhou, You
name: Sung, Jiho
name: Brutschea, Elise
name: Esterlis, Ilya
name: Wang, Yao
name: Scuri, Giovanni
name: Gelly, Ryan J.
name: Heo, Hoseok
name: Taniguchi, Takashi
name: Watanabe, Kenji
name: Zaránd, Gergely
name: Lukin, Mikhail D.
name: Kim, Philip
name: Demler, Eugene
name: Park, Hongkun
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: A Wigner crystal, a regular electron lattice arising from strong correlation effects, is one of the earliest predicted collective electronic states. This many-body state exhibits quantum and classical phase transitions and has been proposed as a basis for quantum information processing applications. In semiconductor platforms, two-dimensional Wigner crystals have been observed under magnetic field or moiré-based lattice potential where the electron kinetic energy is strongly suppressed. Here, we report bilayer Wigner crystal formation without a magnetic or confinement field in atomically thin MoSe$_2$ bilayers separated by hexagonal boron nitride. We observe optical signatures of robust correlated insulating states formed at symmetric (1:1) and asymmetric (4:1 and 7:1) electron doping of the two MoSe$_2$ layers at cryogenic temperatures. We attribute these features to the bilayer Wigner crystals formed from two commensurate triangular electron lattices in each layer, stabilized via inter-layer interaction. These bilayer Wigner crystal phases are remarkably stable and undergo quantum and thermal melting transitions above a critical electron density of up to $6 \times10^{12}$ cm$^{-2}$ and at temperatures of ~40 K. Our results demonstrate that atomically thin semiconductors provide a promising new platform for realizing strongly correlated electronic states, probing their electronic and magnetic phase transitions, and developing novel applications in quantum electronics and optoelectronics.
description: 4 figures
DMRG study of FQHE systems in the open cylinder geometry
Creators: name: Misguich, G.
name: Jolicoeur, Th.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The study of the fractional quantum Hall liquid state of two-dimensional electrons requires a non-perturbative treatment of interactions. It is possible to perform exact diagonalizations of the Hamiltonian provided one considers only a small number of electrons in an appropriate geometry. Many insights have been obtained in the past from considering electrons moving on a sphere or on a torus. In the Landau gauge it is also natural to impose periodic boundary conditions in only one direction, the cylinder geometry. The interacting problem now looks formally like a one-dimensional problem that can be attacked by the standard DMRG algorithm. We have studied the efficiency of this algorithm to study the ground state properties of the electron liquid at lowest Landau level filling factor $ν=1/3$ when the interactions are truncated to the two most important repulsive hard-core components. Use of finite-size DMRG allows us to conclude that the ground state is a compressible two-electron bubble phase in agreement with previous Hartree-Fock calculations. We discuss the treatment of Coulomb interactions in the cylinder geometry. To regularize the long-distance behavior of the Coulomb potential, we compare two methods: using a Yukawa potential or forbidding arbitrary long distances by defining the interelectron distance as the chord distance through the cylinder. This allows us to observe the Wigner crystal state for small filling factor.
description: 11 pages, 5 figures, proceedings of the International Conference on Computer Simulation in Physics and beyond (CSP2020), October 12-16, 2020, Moscow, Russia
Josephson effect in mesoscopic graphene strips with finite width
Creators: name: Moghaddam, Ali G.
name: Zareyan, Malek
Publisher: name: arXiv
Year: 2006
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We study Josephson effect in a ballistic graphene strip of length $L$ smaller than the superconducting coherence length and arbitrary width $W$. We find that the dependence of the critical supercurrent $I_{c}$ on $W$ is drastically different for different types of the edges. For \textit{smooth} and \textit{armchair} edges at low concentration of the carriers $I_{c}$ decreases monotonically with decreasing $W/L$ and tends to a constant minimum for a narrow strip $W/L\lesssim1$. The minimum supercurrent is zero for smooth edges but has a finite value $eΔ_{0}/\hbar$ for the armchair edges. At higher concentration of the carriers, in addition to this overall monotonic variation, the critical current undergoes a series of peaks with varying $W$. On the other hand in a strip with \textit{zigzag} edges the supercurrent is half-integer quantized to $(n+1/2)4eΔ_{0}/\hbar$, showing a step-wise variation with $W$.
description: 4 pages, 3 figures
Some experimental schemes to identify quantum spin liquids
Creators: name: Gao, Yong Hao
name: Chen, Gang
Publisher: name: arXiv
Year: 2020
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Despite the apparent ubiquity and variety of quantum spin liquids in theory, experimental confirmation of spin liquids remains to be a huge challenge. Motivated by the recent surge of evidences for spin liquids in a series of candidate materials, we highlight the experimental schemes, involving the thermal Hall transport and spectrum measurements, that can result in smoking-gun signatures of spin liquids beyond the usual ones. For clarity, we investigate the square lattice spin liquids and theoretically predict the possible phenomena that may emerge in the corresponding spin liquids candidates. The mechanisms for these signatures can be traced back to either the intrinsic characters of spin liquids or the external field-driven behaviors. Our conclusion does not depend on the geometry of lattices and can broadly apply to other relevant spin liquids.
description: 7 pages, 4 figures
Mysterious Globular Cluster System of the Peculiar Massive Galaxy M85
Creators: name: Ko, Youkyung
name: Lee, Myung Gyoon
name: Park, Hong Soo
name: Sohn, Jubee
name: Lim, Sungsoon
name: Hwang, Narae
name: Park, Byeong-Gon
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present a study on stellar population and kinematics of globular clusters (GCs) in the peculiar galaxy M85. We obtain optical spectra of 89 GCs at 8 kpc $< R
description: 19 pages, 12 figures, 5 tables, accepted for publication in ApJ