cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Direct Detection of Classically Undetectable Dark Matter through Quantum Decoherence
Creators: name: Riedel, C. Jess
Publisher: name: arXiv
Year: 2012
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Although various pieces of indirect evidence about the nature of dark matter have been collected, its direct detection has eluded experimental searches despite extensive effort. If the mass of dark matter is below 1 MeV, it is essentially imperceptible to conventional detection methods because negligible energy is transferred to nuclei during collisions. Here I propose directly detecting dark matter through the quantum decoherence it causes rather than its classical effects such as recoil or ionization. I show that quantum spatial superpositions are sensitive to low-mass dark matter that is inaccessible to classical techniques. This provides new independent motivation for matter interferometry with large masses, especially on spaceborne platforms. The apparent dark matter wind we experience as the Sun travels through the Milky Way ensures interferometers and related devices are directional detectors, and so are able to provide unmistakable evidence that decoherence has galactic origins.
description: AGIS parameters have been updated, increasing the sensitivity by an order of magnitude. Some minor tweaks in response to referees. To appear in PRD
Non-Hermitian Many-Body Localization with Open Boundaries
Creators: name: Suthar, Kuldeep
name: Wang, Yi-Cheng
name: Huang, Yi-Ping
name: Jen, H. H.
name: You, Jhih-Shih
Publisher: name: arXiv
Year: 2022
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: The explorations of non-Hermiticity have been devoted to investigate the disorder-induced many-body localization (MBL). However, the sensitivity of the spatial boundary conditions and the interplay of the non-Hermitian skin effect with many-body phenomena are not yet clear. For a MBL system in the presence of non-reciprocal tunnelings and random disorder potential, we identify two different complex-real spectral transitions, one is present for both open and periodic boundaries while the other is present only for open boundaries of a coupled non-Hermitian chains. The later is driven due to the inter-chain coupling at weak disorder where the level statistics of the real eigenenergy phase follows Gaussian orthogonal ensemble. We further characterize wavefunctions through the (biorthogonal) inverse participation ratio and fractal dimension, which reveal the suppression of skin effect in the non-Hermitian MBL phase. Finally, we demonstrate that the quench dynamics of the local particle density, spin imbalance, and entanglement entropy also signify the hallmark of the boundary effects and non-ergodic character of many-body localization.
description: 11 pages, 10 figures; version accepted for publication in Phys. Rev. B
Astronomical arguments in Newton's Chronology
Creators: name: Naze, Yael
Publisher: name: arXiv
Year: 2012
Subjects: subject: History and Philosophy of Physics (physics.hist-ph)
subject: FOS: Physical sciences

description: In his Chronology, Newton uses astronomical "evidence" to support its extreme rejuvenation of ancient times. These elements, having a scientific varnish, provide some credibility to the work. They have been fiercely debated for a century, with a gradual undermining of Newton's assumptions. However, this has not dented the prestige of the English scientist. ----- Dans sa Chronologie, Newton utilise des "preuves" astronomiques pour appuyer son rajeunissement extreme des epoques anciennes. Ces elements, au vernis scientifique, donnent une credibilite certaine a l'ensemble. Ils ont donc ete aprement discutes, les debats sapant petit a petit les hypotheses du savant anglais pour finalement porter un coup mortel a l'ensemble. Cela n'a toutefois pas entame le prestige du savant anglais.
description: To be published in Archives Internationales d'Histoire des Sciences #170 (June 2013) ; article originally in French (available as separate file in postscript, or after English version in pdf) ; additional figures available on http://hdl.handle.net/2268/151993
Additional file 4 of The swan genome and transcriptome, it is not all black and white
Creators: name: Karawita, Anjana C.
name: Cheng, Yuanyuan
name: Chew, Keng Yih
name: Challagulla, Arjun
name: Kraus, Robert
name: Mueller, Ralf C.
name: Tong, Marcus Z. W.
name: Hulme, Katina D.
name: Bielefeldt-Ohmann, Helle
name: Steele, Lauren E.
name: Wu, Melanie
name: Sng, Julian
name: Noye, Ellesandra
name: Bruxner, Timothy J.
name: Au, Gough G.
name: Lowther, Suzanne
name: Blommaert, Julie
name: Suh, Alexander
name: McCauley, Alexander J.
name: Kaur, Parwinder
name: Dudchenko, Olga
name: Aiden, Erez
name: Fedrigo, Olivier
name: Formenti, Giulio
name: Mountcastle, Jacquelyn
name: Chow, William
name: Martin, Fergal J.
name: Ogeh, Denye N.
name: Thiaud-Nissen, Françoise
name: Howe, Kerstin
name: Tracey, Alan
name: Smith, Jacqueline
name: Kuo, Richard I.
name: Renfree, Marilyn B.
name: Kimura, Takashi
name: Sakoda, Yoshihiro
name: McDougall, Mathew
name: Spencer, Hamish G.
name: Pyne, Michael
name: Tolf, Conny
name: Waldenström, Jonas
name: Jarvis, Erich D.
name: Baker, Michelle L.
name: Burt, David W.
name: Short, Kirsty R.
Publisher: name: figshare
Year: 2023
Subjects: subject: Genetics
subject: FOS: Biological sciences
subject: Immunology
subject: FOS: Clinical medicine

description: Additional file 4: Supplementary Table S2. BUSCO analysis of the final genomes.
PSF nowcast using PASSATA simulations -- Towards a PSF forecast
Creators: name: Turchi, A.
name: Agapito, G.
name: Masciadri, E.
name: Beltramo-Martin, O.
name: Milli, J.
name: Plantet, C.
name: Rossi, F.
name: Pinna, E.
name: Sauvage, J. F.
name: Neichel, B.
name: Fusco, T.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: Characterizing the PSF of adaptive optics instruments is of paramount importance both for instrument design and observation planning/optimization. Simulation software, such as PASSATA, have been successfully utilized for PSF characterization in instrument design, which make use of standardized atmospheric turbulence profiles to produce PSFs that represent the typical instrument performance. In this contribution we study the feasibility of using such tool for nowcast application (present-time forecast), such as the characterization of an on-sky measured PSF in real observations. Specifically we will analyze the performance of the simulation software in characterizing the real-time PSF of two different state-of-the-art SCAO adaptive optics instruments: SOUL at the LBT, and SAXO at the VLT. The study will make use of on-sky measurements of the atmospheric turbulence and compare the results of the simulations to the measured PSF figures of merit (namely the FHWM and the Strehl Ratio) retrieved from the instrument telemetry in real observations. Our main goal in this phase is to quantify the level of uncertainly of the AO simulations in reproducing real on-sky observed PSFs with an end-to-end code (PASSATA). In a successive phase we intend to use a faster analytical code (TIPTOP). This work is part of a wider study which aims to use simulation tools joint to atmospheric turbulence forecasts performed nightly to forecast in advance the PSF and support science operations of ground-based telescopes facilities. The 'PSF forecast' option might therefore be added to ALTA Center or the operational forecast system that will be implemented soon at ESO.
description: 10 pages, 6 figures
Fulde-Ferrell-Larkin-Ovchinnikov Phases in Two-dimensional Spin-Orbit Coupled Degenerate Fermi Gases
Creators: name: Zheng, Zhen
name: Gong, Ming
name: Zhang, Yichao
name: Zou, Xubo
name: Zhang, Chuanwei
name: Guo, Guangcan
Publisher: name: arXiv
Year: 2012
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: The Fulde-Ferrell-Larkin-Ovchinnikov (FFLO) phase, a superconducting state with non-zero total momentum Cooper pairs in a strong magnetic field, was predicted more than 50 years ago and now becomes an important concept in many branches of physics. However, no unambiguous experimental evidences for the existence of FFLO phases have been observed yet. Recently, spin-imbalanced ultracold degenerate Fermi gases have emerged as a new powerful platform for the observation of FFLO phases due to their high experimental controllability and the lack of disorder. However, in three dimensional degenerate Fermi gases where the FFLO phases can be described within the simple mean field theory, the parameter region for the FFLO phases is too small to be observed in experiments. Recently, we showed that the Rashba type spin-orbit coupling and in-plane Zeeman field in three dimensional degenerate Fermi gases provide a more efficient way to create the FFLO phase because (1) the parameter region for the FFLO phase is greatly enlarged in the phase diagram and (2) the FFLO phase is stabilized due to the enhanced energy difference between FFLO phase and conventional Bardeen-Cooper-Schrieffer (BCS) phase. In this work we investigate the FFLO phase in two dimensional spin-orbit coupled degenerate Fermi gases using the mean field theory, with special concerns on the physical origin of the FFLO state. The basic properties of the FFLO phase are discussed and the phase diagram is obtained at zero temperature. The symmetry of different quantum phases is examined, which provide important basis for the experimental observation of FFLO phases using the time-of-flight imaging.
description: Presentations have been improved. A detailed comparison between cold atom and solid materials are provided explicitly
Characterization of LBT atmospheric and turbulence conditions in the context of ALTA project
Creators: name: Turchi, A.
name: Masciadri, E.
name: Veillet, C.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: ALTA project has been active since 2016, providing, at LBT observatory site, forecasts of atmospheric parameters, such as temperature, wind speed and direction, relative humidity and precipitable water vapor, and optical turbulence parameters, such as seeing, wavefront coherence time and isoplanatic angle with the final goal to support nightly the science operation of the LBT. Besides to the forecasts, during the years ALTA has been collecting statistics on the atmospheric conditions which can be used to draw a very accurate characterization of the climatology of the telescope site located on top of Mount Graham, Arizona. Such characterization can be used both for the optimization and calibration of the forecast model and as a reference for a model validation. The climatology of these parameters is conceived to be a further output of ALTA that will be upgraded on the website with time and it will be able to put in evidence trends at short as well as long time scales. In this contribution we present a climatological description of all the atmospheric parameters relevant for ground-based astronomy in order to provide to the scientific community a robust reference of the bserving conditions at LBT. The study is performed using on-site measurements provided by DIMM and atmospheric sensors over several years and made available in the telescope telemetry data.
description: 14 pages, 14 figures
title: A 3D mobile application for social networking of an academic community
Creators: name: Λυγγεριδης Χρηστος
Publisher: name: Technical University of Crete
Year: 2015

description: The vast area of TUC, the complex architectural design, the dispersed information about people and services, the daily usage of portable devices in order to get informed and communicate, but also their 3D rendering abilities were the reasons TUCapp was created. TUCapp is a social network that apart anonymous communication of University members offers a 3D map that users can  navigate, find information about campus buildings, services and personel. The  goal of this thesis is the creation of a 3D application that its content can be updated by the users of the application, who can add and edit information and content using the Drupal platform, with no need of administrator or programmer intervention. Using the 3D application creation platform Unity3d, we designed and implemented for android devices, a system for retrieving information from an online database and viewing them in a 3D enviroment. The programmer is able to add new features into this system, creating an android application that can be exported for many operation systems with no need of editing the already written code.
Optimal classification in sparse Gaussian graphic model
Creators: name: Fan, Yingying
name: Jin, Jiashun
name: Yao, Zhigang
Publisher: name: arXiv
Year: 2012
Subjects: subject: Machine Learning (stat.ML)
subject: Statistics Theory (math.ST)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics

description: Consider a two-class classification problem where the number of features is much larger than the sample size. The features are masked by Gaussian noise with mean zero and covariance matrix $Σ$, where the precision matrix $Ω=Σ^{-1}$ is unknown but is presumably sparse. The useful features, also unknown, are sparse and each contributes weakly (i.e., rare and weak) to the classification decision. By obtaining a reasonably good estimate of $Ω$, we formulate the setting as a linear regression model. We propose a two-stage classification method where we first select features by the method of Innovated Thresholding (IT), and then use the retained features and Fisher's LDA for classification. In this approach, a crucial problem is how to set the threshold of IT. We approach this problem by adapting the recent innovation of Higher Criticism Thresholding (HCT). We find that when useful features are rare and weak, the limiting behavior of HCT is essentially just as good as the limiting behavior of ideal threshold, the threshold one would choose if the underlying distribution of the signals is known (if only). Somewhat surprisingly, when $Ω$ is sufficiently sparse, its off-diagonal coordinates usually do not have a major influence over the classification decision. Compared to recent work in the case where $Ω$ is the identity matrix [Proc. Natl. Acad. Sci. USA 105 (2008) 14790-14795; Philos. Trans. R. Soc. Lond. Ser. A Math. Phys. Eng. Sci. 367 (2009) 4449-4470], the current setting is much more general, which needs a new approach and much more sophisticated analysis. One key component of the analysis is the intimate relationship between HCT and Fisher's separation. Another key component is the tight large-deviation bounds for empirical processes for data with unconventional correlation structures, where graph theory on vertex coloring plays an important role.
description: Published in at http://dx.doi.org/10.1214/13-AOS1163 the Annals of Statistics (http://www.imstat.org/aos/) by the Institute of Mathematical Statistics (http://www.imstat.org)
Probabilistic Constrained Bayesion Inversion for Transpiration Cooling
Creators: name: Steins, Ella
name: Bui-Thanh, Tan
name: Herty, Michael
name: Müller, Siegfried
Publisher: name: arXiv
Year: 2022
Subjects: subject: Computational Engineering, Finance, and Science (cs.CE)
subject: FOS: Computer and information sciences

description: To enable safe operations in applications such as rocket combustion chambers, the materials require cooling to avoid material damage. Here, transpiration cooling is a promising cooling technique. Numerous studies investigate possibilities to simulate and evaluate the complex cooling mechanism. One naturally arising question is the amount of coolant required to ensure a safe operation. To study this, we introduce an approach that determines the posterior probability distribution of the Reynolds number using an inverse problem and constraining the maximum temperature of the system under parameter uncertainties. Mathematically, this chance inequality constraint is dealt with by a generalized Polynomial Chaos expansion of the system. The posterior distribution will be evaluated by different Markov Chain Monte Carlo based methods. A novel method for the constrained case is proposed and tested among others on two-dimensional transpiration cooling models.
Support for economic surveys
Creators: name: Tulley, Stephanie
name: Sherman, Amber
Publisher: name: Zenodo
Year: 2023

description: In this presentation, we will share our experiences and some lessons learned from supporting economists with various aspects of their survey-related research. As original data collection needs have grown in our organization, we contract services for survey platforms, recruiting participants, using vendor panels, pre-testing questionnaires with focus groups, 3rd party IRBs, questionnaire development, statistical disclosure review and documentation for releasing public use files. Many of the survey projects involve researchers from multiple institutions, adding a layer of complexity. We hope to present useful advice for others to consider as they are contracting with a vendor for survey support.
Object Detection as Probabilistic Set Prediction
Creators: name: Hess, Georg
name: Petersson, Christoffer
name: Svensson, Lennart
Publisher: name: arXiv
Year: 2022
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: Accurate uncertainty estimates are essential for deploying deep object detectors in safety-critical systems. The development and evaluation of probabilistic object detectors have been hindered by shortcomings in existing performance measures, which tend to involve arbitrary thresholds or limit the detector's choice of distributions. In this work, we propose to view object detection as a set prediction task where detectors predict the distribution over the set of objects. Using the negative log-likelihood for random finite sets, we present a proper scoring rule for evaluating and training probabilistic object detectors. The proposed method can be applied to existing probabilistic detectors, is free from thresholds, and enables fair comparison between architectures. Three different types of detectors are evaluated on the COCO dataset. Our results indicate that the training of existing detectors is optimized toward non-probabilistic metrics. We hope to encourage the development of new object detectors that can accurately estimate their own uncertainty. Code available at https://github.com/georghess/pmb-nll.
ВЛИЯНИЕ ЭКСТРАКТА ИЗ МОРСКОЙ БУРОЙ ВОДОРОСЛИ SACCHARINA JAPONICA (J.E. ARESCHOUG) НА СТРЕСС-ИНДУЦИРУЕМЫЕ НАРУШЕНИЯ МЕМБРАН ЭРИТРОЦИТОВ
Creators: name: Сообщество рецензентов Международного научно-исследовательского журнала
Publisher: name: ООО Цифра
Year: 2023
Subjects: saccharina japonica
eleutherococcus
stress
membranes
erythrocytes
lipids
polyphenols
сахарина японская
элеутерококк
стресс
мембраны
эритроциты
липиды
полифенолы

description: Международный научно-исследовательский журнал, Выпуск 11 (137) 2023
Safe Policy Improvement in Constrained Markov Decision Processes
Creators: name: Berducci, Luigi
name: Grosu, Radu
Publisher: name: arXiv
Year: 2022
Subjects: subject: Machine Learning (cs.LG)
subject: Artificial Intelligence (cs.AI)
subject: Formal Languages and Automata Theory (cs.FL)
subject: Robotics (cs.RO)
subject: FOS: Computer and information sciences
subject: I.2.6; I.2.9

description: The automatic synthesis of a policy through reinforcement learning (RL) from a given set of formal requirements depends on the construction of a reward signal and consists of the iterative application of many policy-improvement steps. The synthesis algorithm has to balance target, safety, and comfort requirements in a single objective and to guarantee that the policy improvement does not increase the number of safety-requirements violations, especially for safety-critical applications. In this work, we present a solution to the synthesis problem by solving its two main challenges: reward-shaping from a set of formal requirements and safe policy update. For the former, we propose an automatic reward-shaping procedure, defining a scalar reward signal compliant with the task specification. For the latter, we introduce an algorithm ensuring that the policy is improved in a safe fashion with high-confidence guarantees. We also discuss the adoption of a model-based RL algorithm to efficiently use the collected data and train a model-free agent on the predicted trajectories, where the safety violation does not have the same impact as in the real world. Finally, we demonstrate in standard control benchmarks that the resulting learning procedure is effective and robust even under heavy perturbations of the hyperparameters.
description: Accepted for presentation at the International Symposium on Leveraging Applications of Formal Methods (ISoLA, 2022)
Multi-tiling and Riesz bases
Creators: name: Grepstad, Sigrid
name: Lev, Nir
Publisher: name: arXiv
Year: 2012
Subjects: subject: Classical Analysis and ODEs (math.CA)
subject: Functional Analysis (math.FA)
subject: FOS: Mathematics

description: Let S be a bounded, Riemann measurable set in R^d, and L be a lattice. By a theorem of Fuglede, if S tiles R^d with translation set L, then S has an orthogonal basis of exponentials. We show that, under the more general condition that S multi-tiles R^d with translation set L, S has a Riesz basis of exponentials. The proof is based on Meyer's quasicrystals.
Estimation of car-sharing demand using an activity-based microsimulation approach: Model discussion and preliminary results
Creators: name: Ciari, Francesco
name: Schüssler, Nadine
name: Axhausen, Kay W.
Publisher: name: ETH Zurich
Year: 2010
Subjects: subject: info:eu-repo/classification/ddc/624
subject: Civil engineering
subject: FOS: Civil engineering

description: Arbeitsberichte Verkehrs- und Raumplanung, 632
C. Valerius Catullus: CARMINA. Gedichte. Lateinisch - deutsch. Übersetzt und herausgegeben von Niklas Holzberg
Creators: name: Weitz, Friedemann
Publisher: name: Forum Classicum
Year: 2017

description: Rezension zu: C. Valerius Catullus: CARMINA. Gedichte. Lateinisch - deutsch. Übersetzt und herausgegeben von Niklas Holzberg. Düsseldorf: Artemis & Winkler 2009. 280 S. (ISBN 978-3- 538-03508-9).
description: Forum Classicum, Nr. 3 (2010): Forum Classicum
Tierisch gut. Phädrus, Fabeln
Creators: name: Rettberg, Jürgen
Publisher: name: Forum Classicum
Year: 2017

description: Rezension zu: Tierisch gut. Phädrus, Fabeln. Bearbeitet von Christian Zitzl. Reihe Transfer, Heft 9. Verlag C. C. Buchner, Bamberg 2009. VII+48 S.,  (ISBN 978-3-7661-5169-8).
description: Forum Classicum, Nr. 1 (2011): Forum Classicum
Powerful DDI-CDI Metadata – the How and the Why?
Creators: name: Lungley, Deirdre
name: Gilders, Thomas
Publisher: name: Zenodo
Year: 2023

description: Here at the UK Data Archive we have a vision of using DDI-CDI – DDI metadata for Cross-Domain Interoperability – to power our future data dissemination tools. However, populating these rich metadata structures at scale is not a trivial task and therefore we are exploring the use of current state-of-the-art machine learning models. With the resulting tools we aim to improve access to our data while protecting people’s privacy. We aim to break open the current binary utility/risk trade-off of Secure Access or Open Access when it comes to sensitive/disclosive datasets, particularly in Social Science and reduce the time delay in giving researchers access to data. Detailed metadata will not only allow researchers to select, filter and link data but will also provide us with the input necessary to drive SDCMicro functions (well-used command-line tools we have rewritten as web services) which drive machine-assisted disclosure assessment, which in turn feeds a decision tree of real-time access outcomes, providing researchers with richer and more flexible choices based on real-time mitigations of key variable sensitivity (e.g. global recoding, top/bottom recoding, etc.) As well as a live demo of the tool, we outline our methodology for building and improving machine learning models capable of enabling the scaling of rich metadata creation. We are all aware of the potential of machine learning to reduce our manual workload but what are the practical considerations for applying these tools to create Social Science metadata, how successful have we been and what more can we do to improve the resulting accuracy?
title: Implementation of distributed Alamouti space time code in orthogonal frequency-division multiplexing (OFDM) system using USRP N200
title: Υλοποίηση κατανεμημένου αλγορίθμου Alamouti σε OFDM σύστημα χρησιμοποιώντας USRP N200
Creators: name: Καραμολεγκος Νικολαος
Publisher: name: Technical University of Crete
Year: 2015

description: Orthogonal frequency division multiplexing (OFDM) is a modulation technique
which is now used in most wired and wireless communication systems, because it is
an effective solution to cope with intersymbol interference caused by the channel.
In wireless communication, the concept of parallel transmission of symbols is used
to achieve high throughput and better transmission quality. OFDM is one of the
techniques for parallel transmission. OFDM splits the total transmission band-
width into a number of orthogonal subcarriers in order to transmit the symbols
using these subcarriers in parallel. It is a widely used modulation and multiplexing
technology, which has become the basis of many telecommunications standards in-
cluding 4G, wireless local area networks (LANs), digital terrestrial television (DTT)
and digital radio broadcasting in much of the world.
Multiple-input multiple-output (MIMO) technology significantly enhances sys-
tem performance. The extra degrees of freedom afforded by the multiple antennas
can be used for increasing bit rates through spatial multiplexing or for improved
diversity order through space-time coding techniques.
In this thesis, we combine OFDM and MIMO systems. Specifically, we design
and implement an OFDM system with two transmitters and one receiver with
Alamouti space time code (STC) using USRP. At the beginning, we create an
OFDM transmitter and receiver with N subcarriers in Matlab and GNU radio and
then we build it using C++ for real time processing. The two transmitters modify
the data, as described, by Alamouti STC and they send them simultaneously. The
receiver has to receive and process the data in order to detect the transmitted
symbols. Time synchronization, CFO cancellation and channel estimation are such
processes. The transmitters are two USRPs N200, which were synchronized to send
the Alamouti symbols at the same time. Also, the receiver is a USRP N200. Before
the Alamouti scheme, we implemented an OFDM system with one transmitter and
one receiver. Finally, we measure some performance metrics, like SNR and BER.
QMA-complete problems
Creators: name: Bookatz, Adam D.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: In this paper we give an overview of the quantum computational complexity class QMA and a description of known QMA-complete problems to date. Such problems are believed to be difficult to solve, even with a quantum computer, but have the property that if a purported solution to the problem is given, a quantum computer would easily be able to verify whether it is correct. An attempt has been made to make this paper as self-contained as possible so that it can be accessible to computer scientists, physicists, mathematicians, and quantum chemists. Problems of interest to all of these professions can be found here.
description: Updated to be current to Aug 22, 2013
МЕХАНИЗМ МАЙНД ФИТНЕСА С ЭЛЕМЕНТАМИ РЕБАЛАНСИНГА
Creators: name: Киварина, Мария
Publisher: name: ООО Цифра
Year: 2023
Subjects: innovative approach
staff security
mind fitness
mind processing
mind rebalancing
"Pygmalion effect"
инновационный подход
кадровая безопасность
майнд фитнес
майнд процессинг
майнд ребалансинг
«эффект Пигмалиона»

description: Международный научно-исследовательский журнал, Выпуск 11 (137) 2023
Solving the Schrodinger Poisson System using the coordinate Adaptive Moving Mesh method
Creators: name: Munive-Villa, Erick
name: Lopez-Sanchez, Jessica N.
name: Avilez-Lopez, Ana A.
name: Guzman, F. S.
Publisher: name: arXiv
Year: 2022
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: In this paper, we implement the Adaptive Moving Mesh method (AMM) to the solution of initial value problems involving the Schrödinger equation, and more specifically the Schrödinger-Poisson system of equations. This method is based on the solution of the problem on a discrete domain, whose resolution is coordinate and time-dependent, and allows to dynamically assign numerical resolution in terms of desired refinement criteria. We apply the method to solve various test problems involving stationary solutions of the SP system, and toy scenarios related to the disruption of subhalo s made of ultralight bosonic dark matter traveling on top of host galaxies.
description: 12 Figures. Published in Physical Review D 105, (2022)8, 083521
title: Implementation of smart radios with OFDM in SDR platform USRP N200 and application in a cognitive radio protocol
title: Υλοποίηση τεχνικών ευφυών ραδιοφώνων με OFDM σε SDR πλατφόρμες USRP N200 και εφαρμογή σε ένα γνωστικό ραδιο-δίκτυο
Creators: name: Γκιολιας Αθανασιος
Publisher: name: Technical University of Crete
Year: 2015

description: Orthogonal Frequency Division Multiplexing or (OFDM) is a modulation format that is being used for many of the latest wireless and telecommunications standards.
OFDM has been adopted in the Wi-Fi arena at standards like 802.11a, 802.11n, 802.11ac and more. It has also been chosen for the cellular telecommunications
standard LTE / LTE-A and, in addition, it has been adopted by other standards such as WiMAX and many more. The combination of high data capacity,
high spectral efficiency, and its resilience to intersymbol interference as a result of multi-path effects means that it is ideal for the high data applications that have
become a major factor in today's communications scene. Since OFDM has gained a significant presence in the wireless market place, it is very interesting to examine it thoroughly and acquire a great amount of knowledge in this area of telecommunications.
Firstly, the purpose of this thesis is to provide an experimental study of an OFDM implementation by utilizing the Ettus UHD drivers in C++, USRPs N200 and several math libraries. The initial prototyping takes place in Matlab and after thorough testing the code is converted into the corresponding C++ code that will be able to handle the incoming/outcoming OFDM packets' processing in realtime. Afterwards, the transmitter-receiver set will be pushed to its limits in order to examine the existence and estimation of a frequency selective channel instead of a flat fading channel.
Secondly, we have the creation and study of a time slotted protocol with a master transmitter(Primary User - PU) and a slave transceiver(Secondary User - SU) that acts as a cognitive radio. The SU after spectrum sensing transmits packets when the PU is idle, in order to keep all time-slots occupied. Next, this application is modified so that the users can transmit a binary image and a receiver processes the incoming parts. The processing of all the packets is done in realtime and provides us with the received image of each user in the end of his transmission.
Phase-Space Ab-Initio Direct and Reverse Ballistic-Electron Emission Spectroscopy: Schottky Barriers Determination for Au/Ge(100)
Creators: name: Gerbi, Andrea
name: Buzio, Renato
name: Gonzalez, Cesar
name: Flores, Fernando
name: de andres, Pedro L.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We develop a phase-space ab-initio formalism to compute Ballistic Electron Emission Spectroscopy current-voltage I(V)'s in a metal-semiconductor interface. We consider injection of electrons into the conduction band for direct bias ($V>0$) and injection of holes into the valence band or injection of secondary Auger electrons into the conduction band for reverse bias ($V<0$). Here, an ab-initio description of the semiconductor inversion layer (spanning hundreds of Angstroms) is needed. Such formalism is helpful to get parameter-free best-fit values for the Schottky barrier, a key technological characteristic for metal-semiconductor rectifying interfaces. We have applied the theory to characterize the Au/Ge(001) interface; a double barrier is found for electrons injected into the conduction band -- either directly or created by the Auger process -- while only a single barrier has been identified for holes injected into the valence band.
description: 35 pages, 11 figures. Appl. Surf. Sci (2022)
RoVISQ: Reduction of Video Service Quality via Adversarial Attacks on Deep Learning-based Video Compression
Creators: name: Chang, Jung-Woo
name: Javaheripi, Mojan
name: Hidano, Seira
name: Koushanfar, Farinaz
Publisher: name: arXiv
Year: 2022
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Cryptography and Security (cs.CR)
subject: FOS: Computer and information sciences

description: Video compression plays a crucial role in video streaming and classification systems by maximizing the end-user quality of experience (QoE) at a given bandwidth budget. In this paper, we conduct the first systematic study for adversarial attacks on deep learning-based video compression and downstream classification systems. Our attack framework, dubbed RoVISQ, manipulates the Rate-Distortion ($\textit{R}$-$\textit{D}$) relationship of a video compression model to achieve one or both of the following goals: (1) increasing the network bandwidth, (2) degrading the video quality for end-users. We further devise new objectives for targeted and untargeted attacks to a downstream video classification service. Finally, we design an input-invariant perturbation that universally disrupts video compression and classification systems in real time. Unlike previously proposed attacks on video classification, our adversarial perturbations are the first to withstand compression. We empirically show the resilience of RoVISQ attacks against various defenses, i.e., adversarial training, video denoising, and JPEG compression. Our extensive experimental results on various video datasets show RoVISQ attacks deteriorate peak signal-to-noise ratio by up to 5.6dB and the bit-rate by up to $\sim$ 2.4$\times$ while achieving over 90$\%$ attack success rate on a downstream classifier. Our user study further demonstrates the effect of RoVISQ attacks on users' QoE.
description: Accepted at NDSS 2023
Benchmarking Structural Evolution Methods for Training of Machine Learned Interatomic Potentials
Creators: name: Waters, Michael J.
name: Rondinelli, James M.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: When creating training data for machine-learned interatomic potentials (MLIPs), it is common to create initial structures and evolve them using molecular dynamics to sample a larger configuration space. We benchmark two other modalities of evolving structures, contour exploration and dimer-method searches against molecular dynamics for their ability to produce diverse and robust training density functional theory data sets for MLIPs. We also discuss the generation of initial structures which are either from known structures or from random structures in detail to further formalize the structure-sourcing processes in the future. The polymorph-rich zirconium-oxygen composition space is used as a rigorous benchmark system for comparing the performance of MLIPs trained on structures generated from these structural evolution methods. Using Behler-Parrinello neural networks as our machine-learned interatomic potential models, we find that contour exploration and the dimer-method searches are generally superior to molecular dynamics in terms of spatial descriptor diversity and statistical accuracy.
description: 13 pages, 15 figures, 4 tables
title: Ανάπτυξη συστήματος μέτρησης της αποτελεσματικότητας μονάδων παραγωγής ηλεκτρικής ενέργειας (αξιολόγηση, αυτοαξιολόγηση)
Creators: name: Αχιλλας Δημητριος
Publisher: name: Technical University of Crete
Year: 2015

description: Η παγκοσμιοποίηση και ο ανταγωνισμός τα τελευταία χρονιά έχουν καταστήσει την αναγκαία την αξιολόγηση των επιχειρήσεων - οργανισμών.  Η αξιολόγηση αποτελεί ένα από τους κύριους παράγοντες για το σχεδιασμό της στρατηγικής για την ανάπτυξη της επιχείρησης - οργανισμού. Δύο τρόποι για την αξιολόγηση μιας επιχείρηση - οργανισμού είναι η μέτρηση της αποτελεσματικότητας και της αποδοτικότητας. Πολλές φορές η αποτελεσματικότητα και η αποδοτικότητα συγχέονται. Η διαφορά μεταξύ των δύο είναι ότι η μέτρηση της αποτελεσματικότητας γίνεται στο αποτέλεσμα ενώ η μέτρηση της αποδοτικότητας γίνεται στο τρόπο που προκύπτει το αποτέλεσμα. Στο τομέα της ενέργειας η αξιολόγηση μπορεί να γίνει στη παραγωγή ενέργειας, στη διανομή και στη κατανάλωση. Στη παραγωγή ενέργειας η αξιολόγηση γίνεται στις μονάδες παραγωγής ενέργειας και συνηθίζεται να αξιολογούνται οι μονάδες με βάση την αποδοτικότητα τους.
 Στη παρούσα διπλωματική πραγματοποιήθηκε μία αξιολόγηση των πέντε μονάδων του ΑΗΣ Αγίου Δημητρίου σε ένα διάστημα 7 χρόνων. Για την αξιολόγηση των μονάδων δημιουργήθηκε ένα σύστημα σε περιβάλλον MATLAB το οποίο αξιολογεί και συγκρίνει τις μονάδες. Ο αλγόριθμος είναι βασισμένος στη μέθοδο περιβάλλουσα ανάλυση δεδομένων (DEA). Αυτή η μέθοδος είναι η πιο διαδεδομένη στη μέτρηση αποδοτικότητας μονάδων παραγωγής ενέργειας καθώς είναι μια μέθοδος που επιτρέπει την αξιολόγηση μονάδων που δέχονται πολλαπλές εισόδους και παράγουν πολλαπλές εξόδους. Οι μονάδες αξιολογήθηκαν ως προς την αποδοτικότητα τους με βάση τη παραγωγή ενέργειας και με βάση την εκπομπή διοξειδίου του άνθρακα μιας και οι μονάδες παραγωγής ενέργειας με καύση λιγνίτη της Ελλάδας βρίσκονται στις πρώτες θέσεις ρύπανσης στην Ευρώπη.
Τα αποτελέσματα που προέκυψαν εμφανίζουν από τις πέντε μονάδες που αξιολογήθηκαν τις μονάδες 1 και 2 να είναι λιγότερο αποδοτικές σε σχέση με τη μονάδα 5 που είναι σχεδόν αποδοτική κατά τη διάρκεια των 7 χρόνων. Ιδιαίτερο ενδιαφέρον παρουσίασε η περιβαλλοντική απόδοση των μονάδων καθώς εμφανίζονται να έχουν χαμηλή αποδοτικότητα. Από αυτό προκύπτει το συμπέρασμα ότι για τη βελτίωση των μονάδων ιδιαίτερη προσοχή πρέπει να δοθεί στη μείωση των ρύπων που αποβάλλονται από τις μονάδες κατά τη διαδικασία παραγωγής της ενέργειας.
Bernard Andreae: Antike Bildmosaiken
Creators: name: Schmitz, Dietmar
Publisher: name: Forum Classicum
Year: 2017

description: Rezension zu: Bernard Andreae: Antike Bildmosaiken. Darmstadt/Mainz: Verlag Philipp von Zabern 2012. (ISBN 978-3-8053-4470-8).
description: Forum Classicum, Nr. 2 (2012): Forum Classicum
Additional file 5 of The swan genome and transcriptome, it is not all black and white
Creators: name: Karawita, Anjana C.
name: Cheng, Yuanyuan
name: Chew, Keng Yih
name: Challagulla, Arjun
name: Kraus, Robert
name: Mueller, Ralf C.
name: Tong, Marcus Z. W.
name: Hulme, Katina D.
name: Bielefeldt-Ohmann, Helle
name: Steele, Lauren E.
name: Wu, Melanie
name: Sng, Julian
name: Noye, Ellesandra
name: Bruxner, Timothy J.
name: Au, Gough G.
name: Lowther, Suzanne
name: Blommaert, Julie
name: Suh, Alexander
name: McCauley, Alexander J.
name: Kaur, Parwinder
name: Dudchenko, Olga
name: Aiden, Erez
name: Fedrigo, Olivier
name: Formenti, Giulio
name: Mountcastle, Jacquelyn
name: Chow, William
name: Martin, Fergal J.
name: Ogeh, Denye N.
name: Thiaud-Nissen, Françoise
name: Howe, Kerstin
name: Tracey, Alan
name: Smith, Jacqueline
name: Kuo, Richard I.
name: Renfree, Marilyn B.
name: Kimura, Takashi
name: Sakoda, Yoshihiro
name: McDougall, Mathew
name: Spencer, Hamish G.
name: Pyne, Michael
name: Tolf, Conny
name: Waldenström, Jonas
name: Jarvis, Erich D.
name: Baker, Michelle L.
name: Burt, David W.
name: Short, Kirsty R.
Publisher: name: figshare
Year: 2023
Subjects: subject: Genetics
subject: FOS: Biological sciences
subject: Immunology
subject: FOS: Clinical medicine

description: Additional file 5: Supplementary Table S3. CEGMA analysis of the final genomes.
In-Vehicle Interface Adaptation to Environment-Induced Cognitive Workload
Creators: name: Meiser, Elena
name: Alles, Alexandra
name: Selter, Samuel
name: Molz, Marco
name: Gomaa, Amr
name: Reyes, Guillermo
Publisher: name: arXiv
Year: 2022
Subjects: subject: Human-Computer Interaction (cs.HC)
subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences
subject: H.5.2; H.1.2

description: Many car accidents are caused by human distractions, including cognitive distractions. In-vehicle human-machine interfaces (HMIs) have evolved throughout the years, providing more and more functions. Interaction with the HMIs can, however, also lead to further distractions and, as a consequence, accidents. To tackle this problem, we propose using adaptive HMIs that change according to the mental workload of the driver. In this work, we present the current status as well as preliminary results of a user study using naturalistic secondary tasks while driving (i.e., the primary task) that attempt to understand the effects of one such interface.
ПЕДИКУЛЕЗ В АСТРАХАНСКОЙ ОБЛАСТИ ЗА 2017-2022
Creators: name: Ефременко, Евгений
Publisher: name: ООО Цифра
Year: 2023
Subjects: head lice
louse
children
itching
parasites
педикулез
головная вошь
дети
зуд
паразиты

description: Международный научно-исследовательский журнал, Выпуск 11 (137) 2023
Introduction to DataCite Infrastructure
Creators: name: Mejias, Gabriela
Publisher: name: Zenodo
Year: 2023
Subjects: webinar
Global Access Program
Africa
DataCite

description: DataCite is a leading global non-profit organization that provides persistent identifiers (PIDs) for research data and other research outputs. DataCite has introduced the Global Access Program (GAP) with the aim to improve equity, access to and adoption of persistent identifier (PID) infrastructure for communities in under-represented countries, including all African countries. African research is still not receiving the right visibility due to several factors, including a lack of appropriate repositories with trusted PIDs, inadequate infrastructure to project the outputs, poor metadata for visibility, technical gaps, low awareness about the importance of PIDs, and institutional buy-in. Through GAP, DataCite’s dedicated resources will collaborate with the research community and stakeholders to promote Africa’s indigenous knowledge and contributions to research outputs. In her presentation, Gabriela Mejias gives an introduction to DataCite's infrastructure. A recording of the presentation can be found here: https://www.youtube.com/watch?v=lbgOmH0cGrU&t=0s
Quintessence Dark Energy from strongly-coupled Higgs mass gap: Local and Non-local higher-derivative non-perturbative scenarios
Creators: name: Frasca, Marco
name: Ghoshal, Anish
name: Koshelev, Alexey
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We entertain the possibility that dark energy arises from the Higgs field of quintessence type in the non-perturbative regimes. For this purpose we utilize a set of exact solutions of Higgs field theory recently devised, in terms of Jacobi elliptical function for a massless quartic scalar field, that satisfy a massive dispersion relation. In certain regions of the parameter space, determined by the quartic coupling value, we show that such solutions have the property to give the correct behavior for the equation of state of the dark energy depending on the initial $θ$ value of periodicity of the Jacobi elliptical function solution. It is seen that on a time scale determined by the Hubble constant and the strength of the self-interaction of the scalar field, when conformal invariance is restored, the equation of state for the dark energy becomes manifest. Further we investigate scenarios within standard field theory framework and also extending to higher-derivative theories, namely infinite-derivative theory, motivated from p-adic string field theory, and Lee-Wick theories and in all cases, we find suitable choices of the parameter space leads to dark energy behavior of the Higgs field, which we compare.
description: 24 pages, 2 figures. Version accepted for publication in European Physical Journal C
Stochastic Echo Phenomena in Nonequilibrium Systems
Creators: name: Noh, Jae Dong
Publisher: name: arXiv
Year: 2012
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: A thermodynamic system is driven into a nonequilibrium condition when a time-dependent force or a nonconservative force represented by a protocol $λ(t)$ is applied. Such a system is time irreversible in the sense that the motion under a protocol $λ(0\leq t\leq τ)$ and the time-reversed motion under $λ(τ-t)$ are not equally probable. We investigate a stochastic echo phenomenon in which a system is controlled by an optimal protocol to display the time-reversed motion. The optimal protocol is derived for a Langevin system. For the time-dependent driving case, simple harmonic oscillator systems are found to display the perfect stochastic echo phenomenon. We also show that any system driven by a time-independent nonconservative force has a dual system displaying the perfect stochastic echo phenomenon. Our study provides a novel perspective on the time-irreversibility of nonequilibrium systems.
description: 5 pages, 1 figure, revised version
PROCEDURE FOR ENTERING FLOOD AND FLOOD ZONES INTO THE UNIFIED STATE REGISTER OF REAL ESTATE
Creators: name: Zdanova Ruslana, V.
name: Sinitsa Julia, S.
Publisher: name: International agricultural journal
Year: 2021
Subjects: REAL ESTATE REGISTRY
TERRITORIES
FLOODING ZONES
UNDERFLOODING ZONES
PUBLIC MAP
REGISTRATION

description: In this article, the authors consider what is the reason for the need to include in the registry of real estate information about flood zones and flooding, why it is important to observe a certain regime and special conditions for their use in these territories, shows what is the difference between the concepts of flood zone and flood zone, what protective measures are set for such zones to prevent the negative impact of water on clearly designated areas.
From microstructural features to effective toughness in disordered brittle solids
Creators: name: Démery, Vincent
name: Ponson, Laurent
name: Rosso, Alberto
Publisher: name: arXiv
Year: 2012
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: The relevant parameters at the microstructure scale that govern the macroscopic toughness of disordered brittle materials are investigated theoretically. We focus on planar crack propagation and describe the front evolution as the propagation of a long-range elastic line within a plane with random distribution of toughness. Our study reveals two regimes: in the collective pinning regime, the macroscopic toughness can be expressed as a function of a few parameters only, namely the average and the standard deviation of the local toughness distribution and the correlation lengths of the heterogeneous toughness field; in the individual pinning regime, the passage from micro to macroscale is more subtle and the full distribution of local toughness is required to be predictive. Beyond the failure of brittle solids, our findings illustrate the complex filtering process of microscale quantities towards the larger scales into play in a broad range of systems governed by the propagation of an elastic interface in a disordered medium.
description: 7 pages, 4 figures