cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Toward simulation of topological phenomenas with one-, two- and three-dimensional quantum walks
Creators: name: Panahiyan, S.
name: Fritzsche, S.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We study the simulation of the topological phases in three subsequent dimensions with quantum walks. We are mainly focused on the completion of a table for the protocols of the quantum walk that could simulate different family of the topological phases in one, two dimensions and take the first initiatives to build necessary protocols for three-dimensional cases. We also highlight the possible boundary states that can be observed for each protocol in different dimensions and extract the conditions for their emergences or absences. To further enrich the simulation of the topological phenomenas, we include step-dependent coins in the evolution operators of the quantum walks. Consequently, this leads to step-dependency of the simulated topological phenomenas and their properties which in turn introduce dynamicality as a feature to simulated topological phases and boundary states. This dynamicality provides the step-number of the quantum walk as a mean to control and engineer the number of topological phases and boundary states, their populations, types and even occurrences.
description: 24 pages, 11 figures, 1 table; some typos are corrected. submitted for publication
title: Feasibility of using photovoltaics for peak demand management for a factory in Bosnia and Herzegovina
Creators: name: Selak Orahovac, Nina
Publisher: name: TU Wien
Year: 2018
Subjects: subject: Feasibility
subject: Photovoltaics
subject: Peak Demand Management
subject: Bosnia and Herzegovina
subject: Feasibility
subject: Photovoltaics
subject: Peak Demand Management
subject: Bosnia and Herzegovina

description: As photovoltaic (PV) systems became increasingly affordable and reliable, electricity consumers are looking to use their property to generate electricity for self-supply. PV systems on their own will not significantly impact the end users energy costs unless integrated with a form of energy storage to help manage the energy produced by the PV system. The key challenge to this approach is to appropriately size the solar and energy storage solution with respect the to the customer load and maximize the solar utilization and the energy storage throughput. This masters thesis will discuss the challenges of integrating commercial Behind-the-Meter PV distributed energy resource technologies. A techno-economic case study of using small scale PV with battery energy storage solutions (BESS) as a means for peak power demand and energy cost reduction in Bosnia and Herzegovina will be presented.
title: Developing Sazan Island with renewable energy. case study of vitalizing and urbanising the first uninhabited Albanian Island into a self-sufficient, smart, zero waste, touristic and free economic zone
Creators: name: Ngjeqari, Vojna
Publisher: name: TU Wien
Year: 2018
Subjects: subject: Renewable Energy Albania
subject: Sazan Island
subject: Sustainable Tourism
subject: Selfsufficient Island
subject: Smart Grid Island
subject: Renewable Energy Albania
subject: Sazan Island
subject: Sustainable Tourism
subject: Selfsufficient Island
subject: Smart Grid Island

description: The tourism industry performance in Albania remains far below its potential. Albanian coast length of 427km remains undeveloped and only 10% of it has been used. Unlocking the touristic potential of Albania is the purpose of the research theses, while environmental sustainability is maintained. . The uninhabited Sazan Island is one of the greatest natural resource of the Albanian coastline. The government has proposed and prepared a technical document for the management of Sazan Island. The knowledge gap of the governmental Sazan management plan is limited to a management scenario and does not explore the development potential of the Island. The thesis aims to investigate the potential of the uninhabited Sazan Island to be developed and urbanised as an eco-friendly free economic zone with smart grid for sustainable tourism. As such, the main objective is to conduct a feasibility analysis by estimating renewable energy potentials in Sazan Island The renewable energy potentials for Sazan Island from solar power, wind power and marine currents were estimated based on geographic and climatic conditions. The self-sufficiency of Sazan Island could be achieved only through efficient management of energy and integration of renewable energies into smart grid. The results offer a fresh perspective on accelerating green economy, green jobs, and green communities on local, national and regional level. On this basis, it is recommended the urbanisation and development of Sazan Island as smart island for sustainable tourism. Further research could be undertaken to explore more in depth the feasibility study of Sazan Island.
Additional file 1 of Grant reviewer perceptions of the quality, effectiveness, and influence of panel discussion
Creators: name: Gallo, Stephen A.
name: Schmaling, Karen B.
name: Thompson, Lisa A.
name: Glisson, Scott R.
Publisher: name: figshare
Year: 2020
Subjects: Cell Biology
Science Policy

description: Additional file 1. Supporting Information - Peer Review Survey.
title: Technological and operational perspectives for the planning and operation of wind turbine generators under cold climate conditions
Creators: name: Lassager, Michael
Publisher: name: TU Wien
Year: 2018
Subjects: subject: Windturbine Generator
subject: ColdClimateCondition
subject: Icedetection
subject: De-Icing
subject: Ice-Throw
subject: Windturbine Generator
subject: ColdClimateCondition
subject: Icedetection
subject: De-Icing
subject: Ice-Throw

description: In the last decades wind energy became a cornerstone in the integration of renewable energy sources to the electrical energy production mix all over the world. The continuous development and integration of wind energy projects led more and more to project sites in remote and complex areas. The first wind energy projects in the Alpine Area were realized in the early 2000 years. Next to the challenging logistical and infrastructural issues during the construction period the operators of the wind energy projects faced the highly underestimated issue of the influence of atmospheric icing. Due to safety reasons, the Wind Turbine Generators (WTGs) had to be stopped and the staff of the operator had to wait, till the ice on the WTGs was melted by higher ambient temperatures. After a successful observation of ice-free rotor blades, the WTG had to be started on site, manually. Due to missing technologies of effective ice detection systems and efficient deicing systems the economical losses were enormous. The author of the Master Thesis has made a research on the background information starting from the political framework in the European Union and Austria, to wind energy technology in general and a deep understanding of the cold climate conditions. For the planning of wind farms, the author exemplifies the calculations and studies that assess the risk of ice throw and create a corresponding park layout and risk concept. The author has analyzed the available technologies for ice protection systems, divided into 2 main categories: active de-icing (involving energy consumption) and passive. Also, the author examined the importance of the risk analysis in order to identify potential events that can negatively impact persons, assets and the environment, and to implement control measures during the operation phase that eliminate or reduce the potential risk-related consequences. During the case study, the author analyzed the evolution of different technologies and strategies for the operation, risk management and economy of a given area in the Eastern Alps in Austria.
Additional file 2 of Grant reviewer perceptions of the quality, effectiveness, and influence of panel discussion
Creators: name: Gallo, Stephen A.
name: Schmaling, Karen B.
name: Thompson, Lisa A.
name: Glisson, Scott R.
Publisher: name: figshare
Year: 2020
Subjects: Cell Biology
Science Policy

description: Additional file 2:. Supplemental Table 1 - Comparison of Answers of Early Versus Late Respondent Groups.
Inverse statistics in stock markets: Universality and idiosyncracy
Creators: name: Zhou, Wei-Xing
name: Yuan, Wei-Kang
Publisher: name: arXiv
Year: 2004
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: Statistical Finance (q-fin.ST)
subject: FOS: Physical sciences
subject: FOS: Economics and business

description: Investigations of inverse statistics (a concept borrowed from turbulence) in stock markets, exemplified with filtered Dow Jones Industrial Average, S&P 500, and NASDAQ, have uncovered a novel stylized fact that the distribution of exit time follows a power law $p(τ_ρ) \sim τρ^{-α}$ with $α\approx 1.5$ at large $τ_ρ$ and the optimal investment horizon $τ_ρ^*$ scales as $ρ^γ$ [1-3]. We have performed an extensive analysis based on unfiltered daily indices and stock prices and high-frequency (5-min) records as well in the markets all over the world. Our analysis confirms that the power-law distribution of the exit time with an exponent of about $α=1.5$ is universal for all the data sets analyzed. In addition, all data sets show that the power-law scaling in the optimal investment horizon holds, but with idiosyncratic exponent. Specifically, $γ\approx 1.5$ for the daily data in most of the developed stock markets and the five-minute high-frequency data, while the $γ$ values of the daily indexes and stock prices in emerging markets are significantly less than 1.5. We show that there is of little chance that this discrepancy in $γ$ stems from the difference of record sizes in the two kinds of stock markets.
description: Elsevier style Latex file with BibTex, 13 pages including 9 eps figures (Several misprints corrected, reference updated)
POZIOM I ZRÓŻNICOWANIE KOSZTÓW OCHRONY ŚRODOWISKA W SPÓŁDZIELNIACH MLECZARSKICH
Creators: name: Juszczyk, Sławomir
name: Nowak, Mirosława M.
name: Juszczyk, Sławomir
name: Nowak, Mirosława M.
Publisher: name: Unknown
Year: 2014
Subjects: subject: Agribusiness
subject: environmental costs
subject: dairy cooperatives in Poland

description: The aim of this paper was to demonstrate the level of environmental costs in the dairy cooperatives in the years 2004-2010. The study involved 32 dairy cooperatives operating continuously during the research, at the end of 2005. Material consisted of information obtained from the questionnaire interview. Particular attention was paid to the cooperative fee for emissions to atmosphere and exceeding the limit values for these pollutants and noise, the costs of solid waste management and sewage costs. It was found that dairy cooperatives incur the highest costs associated with the economy of sewage. High costs are also associated with the emission of pollutants into the atmosphere. Economy linked to environmental protection in the largest cooperatives is stable and close to correct.
Mixing in brackish lakes due to surface ice : a physical model
Creators: name: Bluteau, Cynthia Evelyn
Publisher: name: University of British Columbia
Year: 2010

description: The effects of salt expelled by surface ice upon formation are investigated in the laboratory to determine whether it promotes merolnixis in lakes. The experiments consist of creating surface ice in an insulated container and letting it melt, while taking a time series of temperature measurements at different depths. The model lake has dimensions 0.34m x 0.18m x 0.3m depth and is sufficiently well insulated to allow the formation of an reverse temperature stratification in the water column. The experiments start with well-mixed saline solution at room temperature. Initial salinity ranges from 0 g L⁻¹ to 15 g L⁻¹ of potassium chloride. In all experiments, significant mixing occurred beneath the ice during its formation. The ice expels salt creating colder, more saline and hence denser water below the ice, which then mixes with warmer water located at depth. An unstable temperature stratification, supported by the accumulation of saline waters near the bottom of the lake, is present after the ice is completely melted. The proportion of salt expelled from the ice is a function of the initial lake salinity, as are the details of the circulation under the ice.
Development of a novel calorimetry setup based on metallic paramagnetic temperature sensors
Creators: name: Reifenberger, Andreas
name: Reiser, Andreas
name: Kempf, Sebastian
name: Fleischmann, Andreas
name: Enss, Christian
Publisher: name: arXiv
Year: 2020
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: We have developed a new micro-fabricated platform for the measurement of the specific heat of low heat capacity mg-sized metallic samples, such as superconductors, down to temperatures of as low as $10\,\mathrm{mK}$. It addresses challenging aspects of setups of this kind such as the thermal contact between sample and platform, the thermometer resolution, and an addenda heat capacity exceeding that of the samples of interest (typically $\mbox{nJ/K at }20\,\mbox{mK}$). The setup allows us to use the relaxation method, where the thermal relaxation following a well defined heat pulse is monitored to extract the specific heat. The sample platform ($5 \times 5\, \mathrm{mm^2}$) includes a micro-structured paramagnetic \underline{Ag}:Er temperature sensor, which is read out by a dc-SQUID via a superconducting flux transformer. In this way, a relative temperature precision of $30\,\mathrm{nK/\sqrt{Hz}}$ can be reached, while the addenda heat capacity falls well below $0.5\,\mathrm{nJ/K}$ for $T < 300\,\mathrm{mK}$. A gold-coated mounting area ($4.4 \times 3 \, \mathrm{mm^2}$) is included to improve the thermal contact between sample and platform.
description: 8 pages, 7 figures; the following article has been accepted by Review of Scientific Instruments. After it is published, it will be found at https://publishing.aip.org/resources/librarians/products/journals/
Additional file 1 of Comparison of bioresorbable vs durable polymer drug-eluting stents in unprotected left main (from the RAIN-CARDIOGROUP VII Study)
Creators: name: Iannaccone, Mario
name: Barbero, Umberto
name: Benedictis, Michele De
name: Imori, Yoichi
name: Quadri, Giorgio
name: Trabattoni, Daniela
name: Ryan, Nicola
name: Venuti, Giuseppe
name: Montabone, Andrea
name: Wojakowski, Wojciech
name: Rognoni, Andrea
name: Helft, Gerard
name: Radoslaw Parma
name: Luca, Leonardo De
name: Autelli, Michele
name: Boccuzzi, Giacomo
name: Mattesini, Alessio
name: Templin, Christian
name: Cerrato, Enrico
name: Wańha, Wojciech
name: Smolka, Grzegorz
name: Huczek, Zenon
name: Tomassini, Francesco
name: Cortese, Bernardo
name: Capodanno, Davide
name: Alaide Chieffo
name: Nuñez-Gil, Ivan
name: Gili, Sebastiano
name: Bassignana, Antonia
name: Mario, Carlo Di
name: Doronzo, Baldassarre
name: Omedè, Pierluigi
name: D’Amico, Maurizio
name: Tedeschi, Delio
name: Varbella, Ferdinando
name: Luscher, Thomas
name: Sheiban, Imad
name: Escaned, Javier
name: Rinaldi, Mauro
name: D’Ascenzo, Fabrizio
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Physiology
subject: FOS: Biological sciences
subject: Pharmacology
subject: Biotechnology
subject: Immunology
subject: FOS: Clinical medicine
subject: Cancer
subject: Computational Biology

description: Additional file 1 Supplementary Methods. List of leading and participating study centres. Lists of stents used in the study. Supplementary Table 1. Baseline and interventional characteristics before the propensity score.
Change-Point Analysis of Cyberbullying-Related Twitter Discussions During COVID-19
Creators: name: Das, Sanchari
name: Kim, Andrew
name: Karmakar, Sayar
Publisher: name: arXiv
Year: 2020
Subjects: subject: Social and Information Networks (cs.SI)
subject: Cryptography and Security (cs.CR)
subject: Computers and Society (cs.CY)
subject: FOS: Computer and information sciences

description: Due to the outbreak of COVID-19, users are increasingly turning to online services. An increase in social media usage has also been observed, leading to the suspicion that this has also raised cyberbullying. In this initial work, we explore the possibility of an increase in cyberbullying incidents due to the pandemic and high social media usage. To evaluate this trend, we collected 454,046 cyberbullying-related public tweets posted between January 1st, 2020 -- June 7th, 2020. We summarize the tweets containing multiple keywords into their daily counts. Our analysis showed the existence of at most one statistically significant changepoint for most of these keywords, which were primarily located around the end of March. Almost all these changepoint time-locations can be attributed to COVID-19, which substantiates our initial hypothesis of an increase in cyberbullying through analysis of discussions over Twitter.
On compression of Bruhat-Tits buildings
Creators: name: Neretin, Yuri A.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Representation Theory (math.RT)
subject: Differential Geometry (math.DG)
subject: FOS: Mathematics
subject: 20E42, 53C35, 11S99

description: We obtain an analog of the compression of angles theorem in symmetric spaces for Bruhat--Tits buildings of the type $A$. More precisely, consider a $p$-adic linear space $V$ and the set $Lat(V)$ of all lattices in $V$. The complex distance in $Lat(V)$ is a complete system of invariants of a pair of points of $Lat(V)$ under the action of the complete linear group. An element of a Nazarov semigroup is a lattice in the duplicated linear space $V\oplus V$. We investigate behavior of the complex distance under the action of the Nazarov semigroup on the set $Lat(V)$.
description: 6 pages
Impact of eccentricity on the gravitational wave searches for binary black holes: High mass case
Creators: name: Ramos-Buades, Antoni
name: Tiwari, Shubhanshu
name: Haney, Maria
name: Husa, Sascha
Publisher: name: arXiv
Year: 2020
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: The possible formation of stellar-mass binary black holes through dynamical interactions in dense stellar environments predicts the existence of binaries with non-negligible eccentricity in the frequency band of ground-based gravitational wave detectors; the detection of binary black hole mergers with measurable orbital eccentricity would validate the existence of this formation channel. Waveform templates currently used in the matched-filter gravitational-wave searches of LIGO-Virgo data neglect effects of eccentricity which is expected to reduce their efficiency to detect eccentric binary black holes. Meanwhile, the sensitivity of coherent unmodeled gravitational-wave searches (with minimal assumptions about the signal model) have been shown to be largely unaffected by the presence of even sizable orbital eccentricity. In this paper, we compare the performance of two state-of-the-art search algorithms recently used by LIGO and Virgo to search for binary black holes in the second Observing Run (O2), quantifying their search sensitivity by injecting numerical-relativity simulations of inspiral-merger-ringdown eccentric waveforms into O2 LIGO data. Our results show that the matched-filter search PyCBC performs better than the unmodeled search cWB for the high chirp mass ($>20 M_{\odot}$) and low eccentricity region ($e_{30 Hz} < 0.3$) of parameter space. For moderate eccentricities and low chirp mass, on the other hand, the unmodeled search is more sensitive than the modeled search.
Different pathways in mechanical unfolding/folding cycle of a single semiflexible polymer
Creators: name: Yoshinaga, Natsuhiko
name: Yoshikawa, Kenichi
name: Ohta, Takao
Publisher: name: arXiv
Year: 2004
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: Kinetics of conformational change of a semiflexible polymer under mechanical external field were investigated with Langevin dynamics simulations. It is found that a semiflexible polymer exhibits large hysteresis in mechanical folding/unfolding cycle even with a slow operation, whereas in a flexible polymer, the hysteresis almost disappears at a sufficiently slow operation. This suggests that the essential features of the structural transition of a semiflexible polymer should be interpreted at least on a two-dimensional phase space. The appearance of such large hysteresis is discussed in relation to different pathways in the loading and unloading processes. By using a minimal two-variable model, the hysteresis loop is described in terms of different pathways on the transition between two stable states.
description: 19 pages, 5 figures
A multimodal laser-scanning nonlinear optical microscope with a rapid broadband Fourier-transform coherent Raman modality
Creators: name: Sinjab, Faris
name: Hashimoto, Kazuki
name: Badarla, Venktata Ramaiah
name: Omachi, Junko
name: Ideguchi, Takuro
Publisher: name: arXiv
Year: 2020
Subjects: subject: Optics (physics.optics)
subject: Biological Physics (physics.bio-ph)
subject: FOS: Physical sciences

description: Nonlinear optical microscopy allows rapid high-resolution microscopy with image contrast generated from intrinsic properties of the sample. Established modalities such as multiphoton excited fluorescence and second/third-harmonic generation can be combined with other nonlinear techniques, such as coherent Raman spectroscopy which typically allow chemical imaging of a single resonant vibrational mode of a sample. Here, we utilize a single ultrafast laser source to obtain broadband coherent Raman spectra on a microscope, together with other nonlinear microscopy approaches on the same instrument. We demonstrate that the coherent Raman modality allows broadband measurement (>1000 cm-1), with high spectral resolution (<5 cm-1), with a rapid spectral acquisition rate (3-12 kHz). This enables Raman hyperspectral imaging of > kilo-pixel images at >11 frames per second.
Project Leadership Resources - Bringing Leadership Experiences into the Classroom
Creators: name: Vemu, Sheela
name: Mulcahy, Mary
name: Mehrotra, Dr
name: Goller, Carlos
name: Kaushik, Bharti
name: Rissler, Heather
name: Lorenz, Laurel
Publisher: name: QUBES Educational Resources
Year: 2024

description: The Project Leadership Program is a pedgagogical approach that is designed to improve teamwork through the integration of shared leadership experiences. The program involves three components: a web-based App called Project Leadership, active engagement of student teams, and supportive coaching from instructors. This resource describes the program in more detail, shares user guides for the App, and provides examples of ways to integrate the program in different contexts.
Weak Lensing Detection of Cl 1604+4304 at z = 0.90
Creators: name: Margoniner, V. E.
name: Lubin, L. M.
name: Wittman, D. M.
name: Squires, G. K.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present a weak lensing analysis of the high-redshift cluster Cl 1604+4304. At z=0.90, this is the highest-redshift cluster yet detected with weak lensing. It is also one of a sample of high-redshift, optically-selected clusters whose X-ray temperatures are lower than expected based on their velocity dispersions. Both the gas temperature and galaxy velocity dispersion are proxies for its mass, which can be determined more directly by a lensing analysis. Modeling the cluster as a singular isothermal sphere, we find that the mass contained within projected radius R is 3.69+-1.47 * (R/500 kpc) 10^14 M_odot. This corresponds to an inferred velocity dispersion of 1004+-199 km/s, which agrees well with the measured velocity dispersion of 989+98-76 km/s (Gal & Lubin 2004). These numbers are higher than the 575+110-85 km/s inferred from Cl 1604+4304 X-ray temperature, however all three velocity dispersion estimates are consistent within ~ 1.9 sigma.
description: Revised version accepted for publication in AJ (January 2005). 2 added figures (6 figures total)
Blast-wave analysis of strange particle $m_T$ spectra in Pb-Pb collisions at the SPS
Creators: name: Bruno, G. E.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: The transverse mass spectra of high statistics, high purity samples of K0s, Lambda, Xi and Omega particles produced in Pb-Pb collisions at SPS energy have been studied in the framework of the blast-wave model. The dependence of the freeze-out parameters on particle species and event centrality is discussed. Results at 40 A GeV/c are presented here for the first time.
description: Contribution to the proceedings of the "Hot Quarks 2004" Conference, July 18-24 2004, New Mexico, USA, submitted to Journal of Physics G
Rayleigh and Prandtl number scaling in the bulk of Rayleigh-Benard turbulence
Creators: name: Calzavarini, Enrico
name: Lohse, Detlef
name: Toschi, Federico
name: Tripiccione, Raffaele
Publisher: name: arXiv
Year: 2004
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: The Rayleigh (Ra) and Prandtl (Pr) number scaling of the Nusselt number Nu, the Reynolds number Re, the temperature fluctuations, and the kinetic and thermal dissipation rates is studied for (numerical) homogeneous Rayleigh-Benard turbulence, i.e., Rayleigh-Benard turbulence with periodic boundary conditions in all directions and a volume forcing of the temperature field by a mean gradient. This system serves as model system for the bulk of Rayleigh-Benard flow and therefore as model for the so called ``ultimate regime of thermal convection''. With respect to the Ra dependence of Nu and Re we confirm our earlier results \cite{loh03} which are consistent with the Kraichnan theory \cite{kra62} and the Grossmann-Lohse (GL) theory \cite{gro00,gro01,gro02,gro04}, which both predict $Nu \sim Ra^{1/2}$ and $Re \sim Ra^{1/2}$. However the Pr dependence within these two theories is different. Here we show that the numerical data are consistent with the GL theory $Nu \sim Pr^{1/2}$, $Re \sim Pr^{-1/2}$. For the thermal and kinetic dissipation rates we find $\eps_θ/(κΔ^{2}L^{-2}) \sim (Re Pr)^{0.87}$ and $\eps_u/(ν^3 L^{-4}) \sim Re^{2.77}$, also both consistent with the GL theory, whereas the temperature fluctuations do not depend on Ra and Pr. Finally, the dynamics of the heat transport is studied and put into the context of a recent theoretical finding by Doering et al. \cite{doe05}.
description: 8 pages, 9 figures
Quantum Pseudo-Telepathy
Creators: name: Brassard, Gilles
name: Broadbent, Anne
name: Tapp, Alain
Publisher: name: arXiv
Year: 2004
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Quantum information processing is at the crossroads of physics, mathematics and computer science. It is concerned with that we can and cannot do with quantum information that goes beyond the abilities of classical information processing devices. Communication complexity is an area of classical computer science that aims at quantifying the amount of communication necessary to solve distributed computational problems. Quantum communication complexity uses quantum mechanics to reduce the amount of communication that would be classically required. Pseudo-telepathy is a surprising application of quantum information processing to communication complexity. Thanks to entanglement, perhaps the most nonclassical manifestation of quantum mechanics, two or more quantum players can accomplish a distributed task with no need for communication whatsoever, which would be an impossible feat for classical players. After a detailed overview of the principle and purpose of pseudo-telepathy, we present a survey of recent and no-so-recent work on the subject. In particular, we describe and analyse all the pseudo-telepathy games currently known to the authors.
description: Minor modification in section 2 to give proper credit for the impossible colouring game. References corrected and updated
Additional file 2 of Detecting transcriptomic structural variants in heterogeneous contexts via the Multiple Compatible Arrangements Problem
Creators: name: Yutong Qiu
name: Ma, Cong
name: Xie, Han
name: Kingsford, Carl
Publisher: name: figshare
Year: 2020
Subjects: subject: Genetics
subject: FOS: Biological sciences
subject: Biotechnology
subject: 69999 Biological Sciences not elsewhere classified
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences
subject: Cancer
subject: Inorganic Chemistry
subject: FOS: Chemical sciences
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: Additional file 2. Supplementary document on distance considerations. An extended discussion on the false positives and false negatives that may be due to lack of consideration about various distances in the genome.
Multi-Scale Representation Learning for Spatial Feature Distributions using Grid Cells
Creators: name: Mai, Gengchen
name: Janowicz, Krzysztof
name: Yan, Bo
name: Zhu, Rui
name: Cai, Ling
name: Lao, Ni
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Artificial Intelligence (cs.AI)
subject: Machine Learning (cs.LG)
subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences
subject: I.2.0; I.2.6; I.5.1; J.2

description: Unsupervised text encoding models have recently fueled substantial progress in NLP. The key idea is to use neural networks to convert words in texts to vector space representations based on word positions in a sentence and their contexts, which are suitable for end-to-end training of downstream tasks. We see a strikingly similar situation in spatial analysis, which focuses on incorporating both absolute positions and spatial contexts of geographic objects such as POIs into models. A general-purpose representation model for space is valuable for a multitude of tasks. However, no such general model exists to date beyond simply applying discretization or feed-forward nets to coordinates, and little effort has been put into jointly modeling distributions with vastly different characteristics, which commonly emerges from GIS data. Meanwhile, Nobel Prize-winning Neuroscience research shows that grid cells in mammals provide a multi-scale periodic representation that functions as a metric for location encoding and is critical for recognizing places and for path-integration. Therefore, we propose a representation learning model called Space2Vec to encode the absolute positions and spatial relationships of places. We conduct experiments on two real-world geographic data for two different tasks: 1) predicting types of POIs given their positions and context, 2) image classification leveraging their geo-locations. Results show that because of its multi-scale representations, Space2Vec outperforms well-established ML approaches such as RBF kernels, multi-layer feed-forward nets, and tile embedding approaches for location modeling and image classification tasks. Detailed analysis shows that all baselines can at most well handle distribution at one scale but show poor performances in other scales. In contrast, Space2Vec's multi-scale representation can handle distributions at different scales.
description: 15 pages; Accepted to ICLR 2020 as a spotlight paper
تقييم الأداء والرؤية المستقبلية لسوق الألبان فى المملكة العربية السعودية
Creators: name: Ibrahim, Soliman
name: Ibrahim, Soliman
Publisher: name: Unknown
Year: 2005
Subjects: subject: Food Security and Poverty
subject: Marketing
subject: FOS: Economics and business
subject: dairy market in Saudi Arabia
subject: Saudi Arabia

description: Arab Economic Unity magazine, 17 year, number 32
Exploring Science & Mathematics Models through AI Technology to Advance High School Education Right
Creators: name: Vorsah, Rejoice Elikem
name: Tamakloe, Tobias Amewuga
Publisher: name: Zenodo
Year: 2025

description: Advancements in Artificial Intelligence (AI) have begun to redefine the educational landscape, offering new pathways for exploring complex scientific and mathematical concepts in high school curricula. This article examines the intersection of AI and STEM education, focusing on how AI-powered tools and models can transform the teaching and learning of science and mathematics at the secondary level. The study begins by framing the persistent challenges faced by high school educators—ranging from limited instructional time and student disengagement to disparities in access to laboratory resources and individualized support. Against this backdrop, the integration of AI-based modeling platforms, such as intelligent tutoring systems, virtual labs, and adaptive assessment engines, offers promising avenues for deepening student understanding and promoting inquiry-based learning. The article provides a structured review of AI applications that support interactive simulations, real-time feedback, automated reasoning, and personalized scaffolding in both mathematics and science domains. Case examples illustrate how machine learning algorithms enhance students’ problem-solving abilities in algebra, geometry, physics, and chemistry, while natural language processing facilitates complex scientific communication. The article also explores AI’s role in democratizing access to advanced learning content, supporting differentiated instruction, and improving learning outcomes for diverse student populations. Importantly, the discussion addresses ethical, pedagogical, and infrastructural considerations associated with AI adoption in education, including teacher preparedness, algorithmic transparency, and data privacy. Recommendations are offered for policymakers, educators, and technologists on effectively scaling AI-enhanced models within high school systems to foster future-ready competencies in STEM.
Bar-Driven Evolution and 2D Spectroscopy of Bulges
Creators: name: Bureau, M.
name: Athanassoula, E.
name: Chung, A.
name: Aronica, G.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: A multi-faceted approach is described to constrain the importance of bar-driven evolution in disk galaxies, particularly bulge formation. N-body simulations are used to construct stellar kinematic bar diagnostics for edge-on systems and to quantify the expected vertical structure of bars, and they are compared to observations of 30 edge-on spirals, most with a boxy bulge. Long-slit spectra of the galaxies show characteristic double-hump rotation curves, dispersion profiles with secondary peaks and/or flat maxima, and correlated h3 and V profiles, indicating that most of them harbor edge-on bars. The presence of cold, quasi-axisymmetric central stellar disks is also suggested, presumably formed through bar-driven gaseous inflow and star formation. K-band imaging of the same galaxies spectacularly highlights radial variations of the bars' scaleheights, as expected from vertical disk instabilities. The light profiles also vary radially in shape but never approach a classic de Vaucouleurs law. Filtering of the images further isolates the specific orbit families at the origin of the boxy structure, which can be directly related to periodic orbit calculations in 3D barred potentials. Bars are thus shown to contribute substantially to the formation of both large-scale triaxial bulges and embedded central disks. Relevant results from the SAURON survey of the stellar/ionized-gas kinematics and stellar populations of spheroids are also described. Examples are used to illustrate the potential of coupling stellar kinematics and linestrengths (age and metallicity), here specifically to unravel the dynamical evolution and related chemical enrichment history of bars and bulges. [Abridged]
description: 10 pages, including 4 figures (LaTeX, kapproc.cls, procps.sty). To appear in "Penetrating Bars through Masks of Cosmic Dust: the Hubble Tuning Fork Strikes a New Note", eds. D.L. Block, K.C. Freeman, I. Puerari, & R. Groess (Kluwer: Dordrecht). A version with full resolution PostScript figures is available at http://www.astro.columbia.edu/~bureau/Publications/peanut_sa_04.ps.gz
Programming matrix optics into Mathematica
Creators: name: Almeida, Jose B.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: The various non-linear transformations incurred by the rays in an optical system can be modelled by matrix products up to any desired order of approximation. Mathematica software has been used to find the appropriate matrix coefficients for the straight path transformation and for the transformations induced by conical surfaces, both direction change and position offset. The same software package was programmed to model optical systems in seventh-order. A Petzval lens was used to exemplify the modelling power of the program.
description: 15 pages
A 2MASS All-Sky View of the Sagittarius Dwarf Galaxy: III. Constraints on the Flattening of the Galactic Halo
Creators: name: Johnston, Kathryn V.
name: Law, David R.
name: Majewski, Steven R.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: M giants selected from the Two Micron All Sky Survey (2MASS) have been used to trace streams of tidal debris apparently associated with the Sagittarius dwarf spheroidal galaxy (Sgr) that entirely encircle the Galaxy. While the Sgr M giants are generally aligned with a single great circle on the sky, we measure a difference of 10.4 +- 2.6 degrees between the mean orbital poles of the great circles that best fit debris leading and trailing Sgr, which can be attributed to the precession of Sgr's orbit over the range of phases explored by the data set. Simulations of the destruction of Sgr in potentials containing bulge, disk and halo components best reproduce this level of precession along the same range of orbital phases if the potential contours of the halo are only slightly flattened, with the ratio between the axis length perpendicular to and in the disk in the range q = 0.90-0.95 (corresponding to isodensity contours with q_ρ~ 0.83 - 0.92). Oblate halos are strongly preferred over prolate (q_ρ> 1) halos, and flattenings in the potential of q <= 0.85 (q_ρ<= 0.75) and q >= 1.05 (q_ρ>= 1.1) are ruled out at the 3-sigma level. More extreme values of q <= 0.80 (q_ρ<= 0.6) and q >= 1.25 (q_ρ>= 1.6) are ruled out at the 7-sigma and 5-sigma levels respectively. These constraints will improve as debris with larger separation in orbital phase can be found.
description: 19 pages, 5 figures; Accepted for publication by ApJ (Oct 08, 2004; originally submitted April 21, 2004). Fixed typos and added references. PDF file with high resolution figures may be downloaded from http://www.astro.caltech.edu/~drlaw/Papers/Sgr_paper3.pdf
Additional file 1 of Real-time surveillance of surgical margins via ICG-based near-infrared fluorescence imaging in patients with OSCC
Creators: name: Jiongru Pan
name: Deng, Han
name: Shiqi Hu
name: Chengwan Xia
name: Yongfeng Chen
name: Jianquan Wang
name: Wang, Yuxin
Publisher: name: figshare
Year: 2020
Subjects: subject: Biophysics
subject: Space Science
subject: 29999 Physical Sciences not elsewhere classified
subject: FOS: Physical sciences
subject: Medicine
subject: Cell Biology
subject: Neuroscience
subject: Pharmacology
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Immunology
subject: FOS: Clinical medicine
subject: Marine Biology
subject: Cancer

description: Additional file 1: Fig. S1. Verification of the consistency between fluorescence boundary and tumor boundary in intraoperative frozen section.
Performance of shear stud clusters for precast concrete bridge deck panels
Creators: name: Larose, Kent Evan
Publisher: name: University of British Columbia
Year: 2011

description: The current edition of the Canadian Highway Bridge Design Code (CHBDC), CAN/CSA-S6-00 provides limited guidance for the design of composite bridges with precast concrete deck panels and steel girders. The shear connection is critical in determining the overall performance of the composite superstructure and is commonly achieved with a grout blockout in a precast concrete deck panel, which accepts a cluster of tightly spaced steel shear studs. No specific equations are found in the CHBDC for the design of shear studs used in this system. Furthermore, the current longitudinal spacing limitation of 600 mm for shear studs in the CHBDC is not conducive to the construction of precast concrete decks where an increased spacing of the stud cluster is desirable. An experimental testing regime was completed using push-test specimens constructed with precast concrete panels connected to steel flanges with steel studs within a circular grout pocket. Specimens were tested to failure to determine the ultimate capacity of a stud cluster and to investigate the reduction in ultimate strength after exposure to a number of loading cycles. A 36 m simple span composite superstructure was designed to the CHBDC. A parametric study was conducted on the spacing of stud clusters to investigate the serviceability limit state of the composite superstructure using data captured from the push test specimens. Experiments show that clustered shear studs embedded in high strength grout for construction using precast deck panels meet CHBDC strength requirements and that exceeding the code maximum stud spacing of 600 mm by a factor of two will not result in excessive displacements.
A 2MASS All-Sky View of the Sagittarius Dwarf Galaxy: IV. Modeling the Sagittarius Tidal Tails
Creators: name: Law, David R.
name: Johnston, Kathryn V.
name: Majewski, Steven R.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: M giants recovered from the Two Micron All-Sky Survey (2MASS) have recently been used to map the position and velocity distributions of tidal debris from the Sagittarius (Sgr) dwarf spheroidal galaxy entirely around the Galaxy. We compare this data set to both test particle orbits and N-body simulations of satellite destruction run within a variety of rigid Milky Way potentials and find that the mass of the Milky Way within 50 kpc of its center should be 3.8-5.6 x 10^11 Msun in order for any Sgr orbit to simultaneously fit the velocity gradient in the Sgr trailing debris and the apocenter of the Sgr leading debris. Orbital pole precession of young debris and leading debris velocities in regions corresponding to older debris provide contradictory evidence in favor of oblate/prolate Galactic halo potentials respectively, leading us to conclude that the orbit of Sgr has evolved over the past few Gyr. Based upon the velocity dispersion and width along the trailing tidal stream we estimate the current bound mass of Sgr to be M_Sgr = 2 - 5 x 10^8 Msun independant of the form of the Galactic potential; this corresponds to a range of mass to light ratios (M/L)_Sgr = 14 - 36 (M/L)_Sun for the Sgr core. Models with masses in this range best fit the apocenter of leading Sgr tidal debris when they orbit with a radial period of roughly 0.85 Gyr and have periGalactica and apoGalactica of about 15 kpc and 60 kpc respectively. These distances will scale with the assumed distance to the Sgr dwarf and the assumed depth of the Galactic potential. The density distribution of debris along the orbit in these models is consistent with the M giant observations, and debris at all orbital phases where M giants are obviously present is younger (i.e. was lost more recently from the satellite) than the typical age of a Sgr M giant star.
description: 42 pages, 13 figures; Accepted for publication by ApJ (October 08, 2004; originally submitted May 10, 2004). Fixed typos and added references. PDF file with high resolution figures may be downloaded from http://www.astro.caltech.edu/~drlaw/Papers/Sgr_paper4.pdf
The POLUSA Dataset: 0.9M Political News Articles Balanced by Time and Outlet Popularity
Creators: name: Gebhard, Lukas
name: Hamborg, Felix
Publisher: name: arXiv
Year: 2020
Subjects: subject: Digital Libraries (cs.DL)
subject: Information Retrieval (cs.IR)
subject: Social and Information Networks (cs.SI)
subject: FOS: Computer and information sciences

description: News articles covering policy issues are an essential source of information in the social sciences and are also frequently used for other use cases, e.g., to train NLP language models. To derive meaningful insights from the analysis of news, large datasets are required that represent real-world distributions, e.g., with respect to the contained outlets' popularity, topically, or across time. Information on the political leanings of media publishers is often needed, e.g., to study differences in news reporting across the political spectrum, which is one of the prime use cases in the social sciences when studying media bias and related societal issues. Concerning these requirements, existing datasets have major flaws, resulting in redundant and cumbersome effort in the research community for dataset creation. To fill this gap, we present POLUSA, a dataset that represents the online media landscape as perceived by an average US news consumer. The dataset contains 0.9M articles covering policy topics published between Jan. 2017 and Aug. 2019 by 18 news outlets representing the political spectrum. Each outlet is labeled by its political leaning, which we derive using a systematic aggregation of eight data sources. The news dataset is balanced with respect to publication date and outlet popularity. POLUSA enables studying a variety of subjects, e.g., media effects and political partisanship. Due to its size, the dataset allows to utilize data-intense deep learning methods.
description: 2 pages, 1 table
Filières agroalimentaires et chaines globales de valeur : concepts, méthodologies et perspectives de développement
Creators: name: Cheriet, Foued
name: Cheriet, Foued
Publisher: name: Unknown
Year: 2015
Subjects: subject: Agribusiness
subject: Agricultural and Food Policy
subject: Industrial Organization
subject: CGV
subject: agroalimentaire
subject: méthodologie
subject: concepts et outils
subject: développement
subject: GVC
subject: agribusiness
subject: methodology
subject: concepts and tools
subject: development

description: L’objet de cette intervention est de présenter les concepts clés et les outils méthodologiques mobilisés par les analyses de chaines globales de valeur. Dans un premier temps, nous ferons un rappel du positionnement de la démarche CGV en nous basant sur une lecture historique du développement de ces analyses. Un accent particulier sera ainsi mis sur la définition des notions clés : acteurs dominants, upgrading, modes de gouvernances, etc. (Gereffi et al, 2005). Ensuite, en nous basant sur les travaux de Palpacuer et Balas (2010) et de Trienekens (2011), nous présenterons quelques outils méthodologiques liés à ce type d’analyse. Cela nous permettra de dégager les spécificités des grands modèles de CGV selon les déterminants des modes de gouvernance et les profils des acteurs clés. Enfin, nous illustrerons nos propos par des exemples d’analyse des CGV de tomates fraiches dans plusieurs pays méditerranéens (Champion, 2014 ; Tozanli, El Haddad, 2007), et de la filière avicole en Algérie (Kaci, Cheriet, 2013). Ces illustrations permettront de dégager quelques éléments de comparaison des CGV dans ces pays mais également de faire une lecture plus fine des relations de coordination inter-firmes (Gereffi et al, 2005). Elles nous permettraient également de rendre compte du potentiel explicatif de ces outils d’analyse et d’esquisser quelques perspectives d’application pour l’analyse portant sur le champ alimentaire dans les Pays en Voie de Développement (Temple et al, 2009 ; Temple et al, 2011 ; Rastoin, Ghersi, 2010).