cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Additional file 1 of Breastfeeding may have a long-term effect on oral microbiota: results from the Fin-HIT cohort
Creators: name: Eshriqui, Ilana
name: Viljakainen, Heli T.
name: Ferreira, Sandra R. G.
name: Sajan C. Raju
name: Weiderpass, Elisabete
name: Figueiredo, Rejane A. O.
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Ecology
subject: FOS: Biological sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: Cancer

description: Additional file 1. Differentially abundant bacteria at OTU-level by type of feeding (No infant formula vs. Infant formula) during the first six months of life.
ZASTOSOWANIE METOD TAKSONOMICZNYCH W BADANIU WARUNKÓW ŻYCIA W GMINACH WIEJSKICH WOJEWÓDZTWA ZACHODNIOPOMORSKIEGO
Creators: name: Bąk, Iwona
name: Szczecińska, Beata
name: Bąk, Iwona
name: Szczecińska, Beata
Publisher: name: Unknown
Year: 2015
Subjects: subject: Agribusiness
subject: Community/Rural/Urban Development
subject: Consumer/Household Economics
subject: Research Methods/ Statistical Methods
subject: rural communes
subject: living conditions
subject: unitarisation zeroed method multi-criteria
subject: taxonomy

description: Research in the area of the living conditions of the cities and communes is important, both from the point of view of residents and local authorities. To improve the residents’ satisfaction with the standard of life in a given unit, fi rst the most important areas have to be diagnosed. The article attempts to compare the living conditions of the rural communes of the Zachodniopomorskie voivodeship. Linear organisation and building of similar typological groups was conducted using the unitarisation zeroed method. Construction of synthetic indicators was performed using two separate sets of diagnostic variables characterising social and economic aspects of rural communes. In addition, rural communes were divided into similar typological groups, both in terms of the highlighted aspects, using a multi-criteria taxonomy. It turned out that in the majority of communes (76%) living conditions were similar. Apart from that the living conditions in various communes dependence on their position in space.
Free circle actions with contractible orbits on symplectic manifolds
Creators: name: Kotschick, D.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Symplectic Geometry (math.SG)
subject: Geometric Topology (math.GT)
subject: FOS: Mathematics
subject: 57R17; 57R57

description: We prove that closed symplectic four-manifolds do not admit any smooth free circle actions with contractible orbits, without assuming that the actions preserve the symplectic forms. In higher dimensions such actions by symplectomorphisms do exist, and we give explicit examples based on a construction of Fernandez, Gray and Morgan. We also prove that the only compact complex surfaces admitting free circle actions with contractible orbits are primary Hopf surfaces.
description: proof of Prop. 1 clarified, to appear in Mathematische Zeitschrift
An Exploratory Study of Hierarchical Fuzzy Systems Approach in Recommendation System
Creators: name: Razak, Tajul Rosli
name: Halim, Iman Hazwam Abd
name: Jamaludin, Muhammad Nabil Fikri
name: Ismail, Mohammad Hafiz
name: Fauzi, Shukor Sanim Mohd
Publisher: name: arXiv
Year: 2020
Subjects: subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: Recommendation system or also known as a recommender system is a tool to help the user in providing a suggestion of a specific dilemma. Thus, recently, the interest in developing a recommendation system in many fields has increased. Fuzzy Logic system (FLSs) is one of the approaches that can be used to model the recommendation systems as it can deal with uncertainty and imprecise information. However, one of the fundamental issues in FLS is the problem of the curse of dimensionality. That is, the number of rules in FLSs is increasing exponentially with the number of input variables. One effective way to overcome this problem is by using Hierarchical Fuzzy System (HFSs). This paper aims to explore the use of HFSs for Recommendation system. Specifically, we are interested in exploring and comparing the HFS and FLS for the Career path recommendation system (CPRS) based on four key criteria, namely topology, the number of rules, the rules structures and interpretability. The findings suggested that the HFS has advantages over FLS towards improving the interpretability models, in the context of a recommendation system example. This study contributes to providing an insight into the development of interpretable HFSs in the Recommendation systems.
Additional file 1 of Differential blood miRNA expression in brain amyloid imaging-defined Alzheimer’s disease and controls
Creators: name: Wu, Helen Zong Ying
name: Anbupalam Thalamuthu
name: Cheng, Lesley
name: Fowler, Christopher
name: Masters, Colin L.
name: Perminder Sachdev
name: Mather, Karen A.
Publisher: name: figshare
Year: 2020
Subjects: subject: Biochemistry
subject: Medicine
subject: Cell Biology
subject: Molecular Biology
subject: Neuroscience
subject: Immunology
subject: FOS: Clinical medicine
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Additional file 1 : Supplementary Table 1. Dysregulated miRNAs between amyloid positive AD and amyloid negative cognitively normal controls adjusted for age, sex, years of education, and MMSE score. Supplementary Table 2. Results of nominally significant (p<0.05) differential miRNA expression between AD and controls in the validation set (Leidinger cohort).
Fluid dynamics on logarithmic lattices
Creators: name: Campolina, Ciro S.
name: Mailybaev, Alexei A.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: Analysis of PDEs (math.AP)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: Open problems in fluid dynamics, such as the existence of finite-time singularities (blowup), explanation of intermittency in developed turbulence, etc., are related to multi-scale structure and symmetries of underlying equations of motion. Significantly simplified equations of motion, called toy-models, are traditionally employed in the analysis of such complex systems. In such models, equations are modified preserving just a part of the structure believed to be important. Here we propose a different approach for constructing simplified models, in which instead of simplifying equations one introduces a simplified configuration space: velocity fields are defined on multi-dimensional logarithmic lattices with proper algebraic operations and calculus. Then, the equations of motion retain their exact original form and, therefore, naturally maintain most scaling properties, symmetries and invariants of the original systems. Classification of such models reveals a fascinating relation with renowned mathematical constants such as the golden mean and the plastic number. Using both rigorous and numerical analysis, we describe various properties of solutions in these models, from the basic concepts of existence and uniqueness to the blowup development and turbulent dynamics. In particular, we observe strong robustness of the chaotic blowup scenario in the three-dimensional incompressible Euler equations, as well as the Fourier mode statistics of developed turbulence resembling the full three-dimensional Navier-Stokes system.
description: 39 pages, 6 figures
title: Arcousticon : interactive, space-creating, digital MIDI instrument (synthesizer)
Creators: name: Vovk, Tetyana
Publisher: name: TU Wien
Year: 2018
Subjects: subject: Architektur
subject: Klang
subject: Synästhesie
subject: Bewegung
subject: Pavillon
subject: architecture
subject: sound
subject: synaesthetics
subject: movement
subject: pavilion

description: Die Symbiose zwischen Musik und Architektur als Verbindung zwischen ihren konstituierenden Teilen ist das Grundthema des Musikpavillons Arcousticon. Er funktioniert einerseits als digitaler Synthesizer andererseits als Visualisierer kinetischer Formen. Die zu Grunde liegende Idee versucht Klang als Verräumlichung seiner Zeitkomponente mit Hilfe tastbarer Materialien umzusetzen. Der Designprozess folgt einem sehr experimentellen Ansatz und versucht, die für den Entwurf wesentlichen Verbindungen zwischen Klang und physikalischer Form Schritt für Schritt empirisch herauszufinden. Während Bewegung in der Architektur üblicherweise ein Darstellungsproblem ist (metaphorisch) setzt Arcousticon Bewegung auch buchstäblich um. Der Pavillon selbst kann als dynamische Klangskulptur aufgefasst werden, die mit dem Besucher interagiert und daraus neue raumzeitliche Formen generiert.
description: The symbiosis of music and architecture as a connection between their constituent parts is the basic theme of the interactive musical pavilion Arcousticon. It functions both as a real-time digital synthesizer and a physical shape visualizer. The main idea lies in presenting sound as a time changeable flow in space using tangible materials. The design process itself is a pure experimental one, trying to find interconnections between sound and form step by step. Whereas movement in architecture is usually a problem of its representation (metaphorical), Arcousticon establishes movement in a more literal form too. The pavilion, as a dynamic sound sculpture, interacts with the visitors movements in real time and responds by generating new spatial forms.
Verifying Deep Learning-based Decisions for Facial Expression Recognition
Creators: name: Rieger, Ines
name: Kollmann, Rene
name: Finzel, Bettina
name: Seuss, Dominik
name: Schmid, Ute
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: Neural networks with high performance can still be biased towards non-relevant features. However, reliability and robustness is especially important for high-risk fields such as clinical pain treatment. We therefore propose a verification pipeline, which consists of three steps. First, we classify facial expressions with a neural network. Next, we apply layer-wise relevance propagation to create pixel-based explanations. Finally, we quantify these visual explanations based on a bounding-box method with respect to facial regions. Although our results show that the neural network achieves state-of-the-art results, the evaluation of the visual explanations reveals that relevant facial regions may not be considered.
description: accepted at ESANN 2020
Dynamic transit signal priority
Creators: name: Ekeila, Wael
Publisher: name: University of British Columbia
Year: 2010

description: Transit Signal Priority (TSP) is a popular Traffic Demand Management strategy used to enhance the performance of transit systems by modifying the signal control logic to give transit signal priority through signalized intersections. Conventional TSP strategies used in most cities have been shown to offer significant benefits in minimizing the delays of transit vehicles. However, there have been several concerns about the shortcomings of conventional TSP strategies which limited their applications. The main concern is the potential negative impact on the cross street traffic. Another concern is the static nature of conventional TSP strategies and the lack of responsiveness to real-time traffic and transit conditions. This thesis describes the development and evaluation of a dynamic Transit Signal Priority (TSP) control system which has the ability to provide signal priority in response to real-time traffic and transit conditions. The dynamic TSP system consists of three main components: a virtual detection system, a dynamic arrival prediction model, and a dynamic TSP algorithm. The methodology followed to develop the system consisted of three main steps. The first was to develop a microsimulation model that would be used to test and evaluate the performance of the dynamic TSP system. In the model, Automatic Vehicle location (AVL) was used as the virtual detection system. The second step was the development of several bus arrival prediction models using linear regression and neuro-fuzzy methods. Techniques such as Kalman and Bayes filters were used to refine the prediction. The last step was the development of a dynamic TSP algorithm that would decide what TSP strategy to use and when to apply it. The dynamic TSP system was tested and compared to the conventional TSP system using the microsimulation model. Scenarios with varying simulation parameters and traffic volumes were tested. Results showed that when an accurate prediction model was used, the dynamic TSP system outperformed the conventional one. The dynamic TSP system could be further enhanced if better arrival prediction models are used, more TSP strategies are evaluated, and a larger scale of implementation is studied.
Additional file 6 of Opportunities for the development of drowning interventions in West Bengal, India: a review of policy and government programs
Creators: name: Gupta, M.
name: A. B. Zwi
name: J. Jagnoor
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Cancer
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: Computational Biology

description: Additional file 6. Appendix 6: List of policy documents included in final analysis.
Additional file 1 of Ethnoveterinary plants of Pakistan: a review
Creators: name: Aziz, Muhammad Abdul
name: Khan, Amir Hasan
name: Pieroni, Andrea
Publisher: name: figshare
Year: 2020
Subjects: subject: Ecology
subject: FOS: Biological sciences
subject: Cancer
subject: Science Policy
subject: Plant Biology

description: Additional file 1: Table S2. Medicinal plants used in ethnoveterinary practices in Pakistan.
Current distribution inside Py/Cu lateral spin-valve device
Creators: name: Hamrle, J.
name: Kimura, T.
name: Otani, Y.
name: Tsukagoshi, K.
name: Aoyagi, Y.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: We have investigated experimentally the non-local voltage signal (NLVS) in the lateral permalloy (Py)/Cu/Py spin valve devices with different width of Cu stripes. We found that NLVS strongly depends on the distribution of the spin-polarized current inside Cu strip in the vicinity of the Py-detector. To explain these data we have developed a diffusion model describing spatial (3D) distribution of the spin-polarized current in the device. The results of our calculations show that NLVS is decreased by factor of 10 due to spin flip-scattering occurring at Py/Cu interface. The interface resistivity on Py/Cu interface is also present, but its contribution to reduction of NLVS is minor. We also found that most of the spin-polarized current is injected within the region 30 nm from Py-injector/Cu interface. In the area at Py-detector/Cu interface, the spin-polarized current is found to flow mainly close on the injector side, with 1/e exponential decay in the magnitude within the distance 80 nm.
description: 10 pages, 14 figures
The language of Einstein spoken by optical instruments
Creators: name: Baskal, Sibel
name: Kim, Y. S.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Quantum Physics (quant-ph)
subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: Einstein had to learn the mathematics of Lorentz transformations in order to complete his covariant formulation of Maxwell's equations. The mathematics of Lorentz transformations, called the Lorentz group, continues playing its important role in optical sciences. It is the basic mathematical language for coherent and squeezed states. It is noted that the six-parameter Lorentz group can be represented by two-by-two matrices. Since the beam transfer matrices in ray optics is largely based on two-by-two matrices or $ABCD$ matrices, the Lorentz group is bound to be the basic language for ray optics, including polarization optics, interferometers, lens optics, multilayer optics, and the Poincaré sphere. Because the group of Lorentz transformations and ray optics are based on the same two-by-two matrix formalism, ray optics can perform mathematical operations which correspond to transformations in special relativity. It is shown, in particular, that one-lens optics provides a mathematical basis for unifying the internal space-time symmetries of massive and massless particles in the Lorentz-covariant world.
description: LaTex 8 pages, presented at the 10th International Conference on Quantum Optics (Minsk, Belarus, May-June 2004), to be published in the proceedings
MIEJSCE ROLNICTWA W GOSPODARCE POLSKICH REGIONÓW
Creators: name: Beba, Patrycja
name: Poczta, Walenty
name: Beba, Patrycja
name: Poczta, Walenty
Publisher: name: Unknown
Year: 2015
Subjects: Agribusiness
Agricultural and Food Policy
Community/Rural/Urban Development
Farm Management
Labor and Human Capital
Land Economics/Use
Production Economics
Productivity Analysis

description: The objective of the article was to present regional differentiation of Polish agriculture. Resources of production factors – land, labor and capital as well as the relationships between them was discussed. Spatial diversity of agriculture in Poland, rated by determining the production potential of the individual provinces.
Partial-Wave Analyses of all Proton-Proton and Neutron-Proton Data Below 500 MeV
Creators: name: Rentmeester, M. C. M.
name: Timmermans, R. G. E.
name: de Swart, J. J.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: In 1993 the Nijmegen group published the results of energy-dependent partial-wave analyses (PWAs) of the nucleon-nucleon (NN) scattering data for laboratory kinetic energies below Tlab=350 MeV (PWA93). In this talk some general aspects, but also the newest developments on the Nijmegen NN PWAs are reported. We have almost finished a new energy-dependent PWA and will discuss some typical aspects of this new PWA; where it differs from PWA93, but also what future developments might be, or should be.
description: Presentation at the 19th European Conference on Few-Body Problems in Physics, Groningen, The Netherlands, 23-27 August 2004. 4 pages REVTeX4, no figures
KONDYCJA FINANSOWA GMIN WIEJSKICH WIELKOPOLSKI W LATACH 2007-2011
Creators: name: Bieniasz, Anna
name: Gołaś, Zbigniew
name: Bieniasz, Anna
name: Gołaś, Zbigniew
Publisher: name: Unknown
Year: 2015
Subjects: subject: Agribusiness
subject: Agricultural Finance
subject: Community/Rural/Urban Development
subject: Research Methods/ Statistical Methods
subject: financial condition
subject: rural communes
subject: Wielkopolska
subject: Topsis

description: The main objective of this paper was to evaluate the fi nancial condition of the rural communes of Wielkopolska in 2007-2011. In assessing the fi nancial performance using ratio analysis, TOPSIS method and regression analysis were applied. Studies have shown that synthetic partial measure of the relationship of budget, indicators per capita and debt, as well as the average synthetic assessment of the fi nancial condition of rural communities did not differ from the rural communes and of Wielkopolska in Poland. Rural communes of Wielkopolska best and worst fi nancial condition constituted about 15% of communes, low-and middle-level characterised more than 30% of communes. Typological class communes were strongly differentiated primarily by synthetic measure of the debt. Parameters of the regression model indicated that signifi cant determinants of fi nancial condition are: the ability to create income, expenditure policy and sovereign debt, as well as the scale of unemployment, demographic structure of communes and age structure of the councilors.
Criteria for Exact Qudit Universality
Creators: name: Brennen, Gavin K.
name: O'Leary, Dianne P.
name: Bullock, Stephen S.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We describe criteria for implementation of quantum computation in qudits. A qudit is a d-dimensional system whose Hilbert space is spanned by states |0>, |1>,... |d-1>. An important earlier work of Mathukrishnan and Stroud [1] describes how to exactly simulate an arbitrary unitary on multiple qudits using a 2d-1 parameter family of single qudit and two qudit gates. Their technique is based on the spectral decomposition of unitaries. Here we generalize this argument to show that exact universality follows given a discrete set of single qudit Hamiltonians and one two-qudit Hamiltonian. The technique is related to the QR-matrix decomposition of numerical linear algebra. We consider a generic physical system in which the single qudit Hamiltonians are a small collection of H_{jk}^x=\hbarΩ(|k>k iff H_{jk}^{x,y} are allowed Hamiltonians. One qudit exact universality follows iff this graph is connected, and complete universality results if the two-qudit Hamiltonian H=-\hbarΩ|d-1,d-1>
description: 7 pages, 1 figure
Regional exponential general observability in diffusion problem
Creators: name: Jaafar, Zainab A.
name: Al-Saphory, Raheam A.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Optimization and Control (math.OC)
subject: FOS: Mathematics

description: The aim of this paper is to extend the concept of regional exponential general observability to the case of Neumann boundary conditions problem in diffusion system. More precisely, for linear distributed parameter diffusion systems, we show that the sensors characterizations allow to reconstruct the regional exponential state in a sub-region of the considered systems domain. Moreover, various interesting results associated with the choice of sensors are given and illustrated in specific situations in order regional exponential general observability notion to be achieved. Finally, we also show that, there exists a dynamical system for diffusion system is not exponential general observable in the usual sense, but it may be regional exponential general observable.
description: 11 pages, 5 figures, regular paper
ROLA JAKOŚCI W PODEJMOWANIU DECYZJI NABYWCZYCH PRZEZ KONSUMENTÓW NA PRZYKŁADZIE RYNKU MIĘSA I WĘDLIN
Creators: name: Grębowiec, Mariusz
name: Grębowiec, Mariusz
Publisher: name: Unknown
Year: 2015
Subjects: subject: Agribusiness
subject: Consumer/Household Economics
subject: Food Consumption/Nutrition/Food Safety
subject: Livestock Production/Industries
subject: quality
subject: meat
subject: cured meat
subject: consumer
subject: market

description: The paper discusses the concept of quality and the factors that it consist of. It takes into account the role of the consumer in the formation of the product quality. It presents the basic quality assurance systems used in food production. Purchasing decision-making process and its implications have been presented. The situation on the market of meat and cured meat in Poland and the legal requirements for the production of food of animal origin have been described. It presents the results of their survey, comparing them with the available data.
Remarks on the rolling tachyon BCFT
Creators: name: Gaberdiel, Matthias R.
name: Gutperle, Michael
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: It is shown how the boundary correlators of the Euclidean theory corresponding to the rolling tachyon solution can be calculated directly from Sen's boundary state. The resulting formulae reproduce precisely the expected perturbative open string answer. We also determine the open string spectrum and comment on the implications of our results for the timelike theory.
description: 20 pages, harvmac(b), no figures
title: 01_1121
Creators: name: Wesley Baldwin, John
name: Baldwin, John W.
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2018
Subjects: subject: LaMOP
subject: Laboratoire de Médiévistique Occidentale de Paris

description: L'ensemble de ces notes ont été crée par John Baldwin lors d'une de ses premières périodes de résidence à Paris. Ces documents comprennent tous les magistri qu’il avait pu rencontrer dans ses sources. Aux XIIème et XIIIème siècles, les universités n'existant pas encore, le titre de magister s'il évoque certainement une compétence n'est pas rattaché de façon systématique au passage par les écoles. De surcroît, les magistris sont le plus souvent désignés par leur seul prénom. La lecture de ces données est donc difficile et suppose un long travail pour tenter d'identifier un individu auquel on pourrait rattacher plusieurs mentions. John Baldwin avait donc renoncé à utiliser ces données pour donner un prolongement à sa magnifique étude sur les gradués d'université et leur emploi par les Capétiens et les Plantagenêts. Néanmoins, il a conservé ces données et elles sont potentiellement très utile dans le cadre de Studium, comme le sont toutes les mentions dans les volumes des Fasti Ecclesiae Gallicanae de chanoines portant ce titre de magister sans autres précisions. L'ampleur des dépouillements rend ces données très utiles et nous devons une grande reconnaissance à John Baldwin pour avoir pris la peine de faire photocopier ses fiches et de nous les avoir transmises amicalement.
Les données ainsi que les images des fiches sont accessibles sur le site Internet à l'adresse suivante : http://studium-baldwin.lamop.fr/.
Les transcriptions des fiches ont été effectuées par des étudiants de Paris 1 Panthéon - Sorbonne mais elles n'ont pas été corrigées par la suite.
description: Relation: https://lamop.hypotheses.org/
Additional file 1 of Epidemiological analysis of the Kaohsiung city strategy for dengue fever quarantine and epidemic prevention
Creators: name: Pan, Chao-Ying
name: Liu, Wei-Liang
name: Matthew-P. Su
name: Te-Pin Chang
name: Hui-Pin Ho
name: Shu, Pei-Yun
name: Joh-Jong Huang
name: Li-Jen Lin
name: Chen, Chun-Hong
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Biotechnology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Ecology
subject: FOS: Biological sciences
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: Cancer
subject: Science Policy
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: Computational Biology

description: Additional file 1 Supplementary Fig. 1. Map showing the distance between the top/ bottom 5 countries from which Dengue was imported and Kaohsiung city. The analysis chart was created after analyzing all collected imported dengue fever data from 2013 to 2018 and referring to the dengue map constructed by the Taiwan CDC (https://cdcdengue.azurewebsites.net/Imported.aspx). The world map is publicly available via OpenStreetMap (https://www.openstreetmap.org/).
The role of fragment shapes in the simulations of asteroids as gravitational aggregates
Creators: name: Ferrari, Fabio
name: Tanga, Paolo
Publisher: name: arXiv
Year: 2020
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: Remote measurements and in-situ observations confirm the idea that asteroids up to few hundreds of meters in size might be rubble piles. The dynamics of these objects can be studied using N-body simulations of gravitational aggregation. We investigate the role of particle shape in N-body simulations of gravitational aggregation. We study contact interaction mechanisms and the effects of parameters such as surface friction, particle size distribution and number of particles in the aggregate. We discuss the case of rubble pile reshaping under its own self-gravity, with no spin and no external force imposed. We implement the N-body gravitational aggregation problem with contact and collisions between particles of irregular, non-spherical shape. Contact interactions are modeled using a soft-contact method, considering the visco-elastic behavior of particles' surface. We perform numerical simulations to compare the behavior of spherical bodies with that of irregular angular bodies. The simulations are performed starting from aggregates in non-equilibrium state. We allow particles to settle through reshaping until they reach an equilibrium state. Preliminary tests are studied to investigate the quantitative and qualitative behavior of the granular media. The shape of particles plays a relevant role in the settling process of the rubble pile aggregate, affecting both transient dynamics and global properties of the aggregate at equilibrium. In the long term, particle shape dominates over simulation parameters such as surface friction, particle size distribution and number of particles in the aggregate. Spherical particles are not suitable to model accurately the physics of contact interactions between particles of N-body aggregation simulations. Irregular particles are required for a more realistic and accurate representation of the contact interaction mechanisms.
description: 23 pages, 14 figures. Accepted on Icarus
AKTYWIZACJA OBSZARÓW WIEJSKICH UNII EUROPEJSKIEJ W KONTEKŚCIE PROGRAMU LEADER W WIELKOPOLSCE
Creators: name: Hadyński, Jakub
name: Borucka, Karolina
name: Hadyński, Jakub
name: Borucka, Karolina
Publisher: name: Unknown
Year: 2015
Subjects: Agribusiness
Agricultural and Food Policy
Community/Rural/Urban Development

description: Paper refers to the effects of local resources activation on rural areas with reference to the assessment of Leader Programme implementation in the Wielkopolska voivodeship. Particular attention was given to the fi rst effects of Leader Programme with regard to the level of expenditure and area of activity undertaken by Local Action Groups. The paper includes the review of budgets of Local Action Groups in Wielkopolska Voivodeship, and their allocations to particular measures and years. The obtained results point out the level of budgetary spending by Local Action Groups. This analysis shows the advancement level and fi rst effects of Leader Programme’s adaptation.
ASYMETRIA W TRANSMISJI CEN PSZENICY PASZOWEJ MIĘDZY RYNKIEM POLSKIM I NIEMIECKIM
Creators: name: Hamulczuk, Mariusz
name: Hamulczuk, Mariusz
Publisher: name: Unknown
Year: 2015
Subjects: subject: Agribusiness
subject: Crop Production/Industries
subject: Demand and Price Analysis
subject: horizontal price transmission
subject: asymmetry
subject: wheat prices
subject: TAR
subject: M-TAR
subject: ECM

description: The aim of the paper was an assessment of possible asymmetry in price transmission between Polish and German feed wheat prices. TAR and M-TAR procedures were employed for testing price symmetry, as well as ECM framework. The results obtained indicate the existence of the long-run relationship between Polish and German wheat prices, as well as asymmetric adjustment of prices to the long-run equilibrium relationship.
Backwards semi-martingales into Burgers' turtulence
Creators: name: Nzissila, Florent
name: Moutsinga, Octave
name: Obiang, Fulgence Eyi
Publisher: name: arXiv
Year: 2020
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics

description: In fluid dynamics governed by the one dimensional inviscid Burgers equation $\partial_t u+u\partial_x(u)=0$, the stirring is explained by the sticky particles model. A Markov process $([Z^1_t,Z^2_t],\,t\geq0)$ describes the motion of random turbulent intervals which evolve inside an other Markov process $([Z^3_t,Z^4_t],\,t\geq0)$, describing the motion of random clusters concerned with the turbulence. Then, the four velocity processes $(u(Z^i_t,t),\,t\geq0)$ are backward semi-martingales.
description: 21 pages, 5 figures
TRUSTD: Combat Fake Content using Blockchain and Collective Signature Technologies
Creators: name: Jaroucheh, Zakwan
name: Alissa, Mohamad
name: Buchanan, William J
Publisher: name: arXiv
Year: 2020
Subjects: subject: Cryptography and Security (cs.CR)
subject: FOS: Computer and information sciences

description: The growing trend of sharing news/contents, through social media platforms and the World Wide Web has been seen to impact our perception of the truth, altering our views about politics, economics, relationships, needs and wants. This is because of the growing spread of misinformation and disinformation intentionally or unintentionally by individuals and organizations. This trend has grave political, social, ethical, and privacy implications for society due to 1) the rapid developments in the field of Machine Learning (ML) and Deep Learning (DL) algorithms in creating realistic-looking yet fake digital content (such as text, images, and videos), 2) the ability to customize the content feeds and to create a polarized so-called "filter-bubbles" leveraging the availability of the big-data. Therefore, there is an ethical need to combat the flow of fake content. This paper attempts to resolve some of the aspects of this combat by presenting a high-level overview of TRUSTD, a blockchain and collective signature-based ecosystem to help content creators in getting their content backed by the community, and to help users judge on the credibility and correctness of these contents.
description: arXiv admin note: text overlap with arXiv:1812.00315, arXiv:1807.06346, arXiv:1904.05386 by other authors
Teleportation Topology
Creators: name: Kauffman, Louis H.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We discuss the structure of teleportation. By associating matrices to the preparation and measurement states, we show that for a unitary transformation M there is a full teleportation procedure for obtaining M|S> from a given state |S>. The key to this construction is a diagrammatic intepretation of matrix multiplication that applies equally well to a topological composition of a maximum and a minimum that underlies the structure of the teleportation. This paper is a preliminary report on joint work with H. Carteret and S. Lomonaco.
description: LaTeX document, 16 pages, 8 figures, Talk delivered at the Xth International Conference on Quantum Optics, Minsk, Belarus
MALACOPHAUNA OF THE GISSAR RESERVOIR AND GORGE ILONLI GISSAR RIDGE
Creators: name: Gaibnazarova, F.
name: Khakberdiyeva, Khilola
Publisher: name: Zenodo
Year: 2024

description: In this article, the malacofauna of the Gissar reservoir and the Ilonli gorge of the Gissar ridge and the diversity of species (after the family Buliminidae) were studied. 5 subfamilies, 12 genera and 38 species are represented, constituting 22.22% of the malacofauna.
Dissipative dynamics of an open quantum battery
Creators: name: Carrega, Matteo
name: Crescente, Alba
name: Ferraro, Dario
name: Sassetti, Maura
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Coupling with an external environment inevitably affects the dynamics of a quantum system. Here, we consider how charging performances of a quantum battery, modelled as a two level system, are influenced by the presence of an Ohmic thermal reservoir. The latter is coupled to both longitudinal and transverse spin components of the quantum battery including decoherence and pure dephasing mechanisms. Charging and discharging dynamics of the quantum battery, subjected to a static driving, are obtained exploiting a proper mapping into the so-called spin-boson model. Analytic expressions for the time evolution of the energy stored in the weak coupling regime are presented relying on a systematic weak damping expansion. Here, decoherence and pure dephasing dissipative coupling are discussed in details. We argue that the former results in better charging performances, showing also interesting features reminiscent of the Lamb shift level splitting renormalization induced by the presence of the reservoir. Charging stability is also addressed, by monitoring the energy behaviour after the charging protocol has been switched off. This study presents a general framework to investigate relaxation effects, able to include also non Markovian effects, and it reveals the importance of controlling and, possibly, engineering system-bath coupling in the realization of quantum batteries.
description: 29 pages (single column), 6 figures
A Survey of 3 to 5.4 Micron Emission From Planetary Nebulae using SOFIA/FLITECAM
Creators: name: Smith, Erin C.
name: Logsdon, Sarah E.
name: McLean, Ian S.
name: Fletcher, Elizabeth
name: Vacca, William D.
name: Becklin, E. E.
name: 5
name: Shenoy, Sachindev
name: Savage, Maureen
name: Hamilton, Ryan T.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Here we present the results of an airborne 3-5.4$μ$m spectroscopic study of three young, Carbon-rich planetary nebulae IC 5117, PNG 093.9-00.1, and BD $+$30 3639. These observations were made using the grism spectroscopy mode of the FLITECAM instrument during airborne science operations onboard NASA's Stratospheric Observatory for Infrared Astronomy (SOFIA). The goal of this study is to characterize the 3.3 $μ$m and 5.25 $μ$m PAH dust emission in planetary nebulae and study the evolution of PAH features within evolved stars before their incorporation into new stellar systems in star-forming regions. Targets were selected from IRAS, KAO and ISO source lists, and were previously observed with FLITECAM on the 3-meter Shane telescope at Lick Observatory to allow direct comparison between the ground and airborne observations. We measure PAH emission equivalent width and central wavelength, classify the shape of the PAH emission, and determine the PAH/Aliphatic ratio for each target. The 3.3 $μ$m PAH emission feature is observed in all three objects. PNG 093.9-00.1 exhibits NGC 7027-like aliphatic emission in the 3.4 to 3.6 $μ$m region while IC 5117 and BD +30 3639 exhibit less aliphatic structure. All three PNs additionally exhibit PAH emission at 5.25 $μ$m.
description: 17 Pages, 3 figures
Generalization of the second trace form of central simple algebras in characteristic two
Creators: name: de la Maza, A. C.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Number Theory (math.NT)
subject: Rings and Algebras (math.RA)
subject: FOS: Mathematics
subject: 11E04; 11E81

description: Let F be a field with characteristic two. We generalize the second trace form for central simple algebras with odd degree over F. We determine the second trace form and the Arf invariant and Clifford invariant for tensor products of central simple algebras.
description: LaTeX, 9 pages
An evaluation of online reinforcement learning neuro-fuzzy traffic signal controllers
Creators: name: Hasan, Moudud
Publisher: name: University of British Columbia
Year: 2010

description: The work related to the development and evaluation of an online reinforcement learning neuro-fuzzy traffic signal controller undertaken at the University of British Columbia has been presented in this thesis. The main objective of the initiative was to advance the functionality of an earlier design developed at the same research facility which has been presented in the undergraduate thesis of Denesh Pohar. The original code has now been modified to control traffic movements at a standard four-leg arterial intersection. Its robustness was tested considering a range of traffic volume scenarios on the intersecting roads and simulated over a 90-minute period in Vissim traffic simulation software. Furthermore, the performance was compared to the operations of two existing signal control strategies, the actuated and modified FUSICO controls, which were also simulated under an identical set of conditions. Results suggest some positive changes in the intersection performance with the implementation of the online RLFNN control.
Exactly Soluble Quantum Wormhole in Two Dimensions
Creators: name: Kim, Won Tae
name: Son, Edwin J.
name: Yoon, Myung Seok
Publisher: name: arXiv
Year: 2004
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We are presenting a quantum traversable wormhole in an exactly soluble two-dimensional model. This is different from previous works since the exotic negative energy that supports the wormhole is generated from the quantization of classical energy-momentum tensors. This explicit illustration shows the quantum-mechanical energy can be used as a candidate for the exotic source. As for the traversability, after a particle travels through the wormhole, the static initial wormhole geometry gets a back reaction which spoils the wormhole structure. However, it may still maintain the initial structure along with the appropriate boundary condition.
description: v1. 13 pages, 1 figure, REVTeX3; v2. 1 Ref. added, REVTeX4, to appear in Phys. Rev. D
Classes of forms Witt equivalent to a second trace form over fields of characteristic two
Creators: name: de la Maza, A. C.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Number Theory (math.NT)
subject: Rings and Algebras (math.RA)
subject: FOS: Mathematics
subject: 11E04; 11E81

description: Let F be a field of characteristic two. We determine all non-hyperbolic quadratic forms over F that are Witt equivalent to a second trace form.
description: LaTeX, 3 pages
Der Weg von 2000-Watt-Areal Bewohnern in eine nachhaltige Zukunft : ökologischer Fussabdruck und Absenkpfad von 2000-Watt-Areal Bewohnern zur Erreichung des 2000-Watt-Ziels
Creators: name: Hertweck, Basil
Publisher: name: ZHAW Zürcher Hochschule für Angewandte Wissenschaften
Year: 2019
Subjects: 2000-Watt-Areal
2000-Watt-Gesellschaft
Treibhausgasemissionen
Primärenergiebedarf
Benutzerverhalten
338.927: Umweltökonomie und nachhaltige Entwicklung

description: Um die globale Erderwärmung bei maximal +1.5°C zu stoppen, muss die Schweiz ihre Treibhausgasemissionen bis 2050 auf ein Minimum senken. Dies soll unter anderem mithilfe der Vision einer 2000-Watt-Gesellschaft bis ins Jahr 2100 geschehen. Zur Umsetzung der darin definierten Ziele, wurde das 2000-Watt-Areal Label erstellt. Das Label steht für einen nachhaltigen Umgang mit Ressourcen und Emissionen. Zur Messung des ökologischen Fussabdrucks eines Anwohnenden, gibt es zwei verschiedene Bilanzierungskonzepte. Während die meisten Auswertungen einfachheitshalber mit dem Endenergiekonsum durchgeführt werden, wird in dieser Arbeit mit dem Gesamtkonsum bilanziert. Aufgrund von Literaturquellen wurden Grundlagen für die verschiedenen Einflussbereiche der Bewohner und Bewohnerinnen von 2000-Watt-Arealen gesammelt und ausgewertet. Die Ergebnisse zeigen, dass die 2000-Watt-Areale einen deutlich tieferen Primärenergiebedarf (4’755 Watt pro Person) wie auch tiefere Treibhausgasemissionen (6.83 Tonnen CO2 pro Person) aufweisen, als Referenzwerte aus der Stadt Zürich und der Schweiz.
Im Vergleich zu dem Ziel der 2000-Watt-Gesellschaft sieht der Absenkpfad eine Reduktion des Primärenergiebedarfs um 33% und der Treibhausgasemissionen um 81% bis ins Jahr 2050 vor. Das grösste Reduktionspotential liegt im Bereich des Konsums, mit bis zu 45% Anteil an den Primärenergiebedarf und den Treibhausgasemissionen. Dieser Bereich hängt mehrheitlich von den individuellen Entscheidungen und Gewohnheiten Einzelner ab. Des Weiteren wurden noch einige geeignete Massnahmen zur Reduktion des ökologischen Fussabdrucks beschrieben. Die Arbeit kommt zum Schluss, dass die 2000-Watt-Areale auf einem guten Weg in eine nachhaltige Zukunft sind. Um den Absenkpfad bis 2050 einzuhalten, muss mit den Massnahmen jedoch bereits heute begonnen werden.
Farming or burning? shadow prices and farmer’s impatience on the allocation of multi-purpose resource in the mixed farming system of Ethiopia
Creators: name: Teklewold, Hailemariam
name: Teklewold, Hailemariam
Publisher: name: Unknown
Year: 2011
Subjects: subject: Farm Management
subject: impatience
subject: shadow price
subject: allocation
subject: farm yard manure
subject: Ethiopia

description: In crop-livestock mixed farming system where farm yard manure (FYM) is considered as important multi-purpose resource such as source of soil organic matter, additional source of income and household source of energy, soil fertility depletion could takes place within the perspective of the household allocation pattern of FYM. This paper estimates structural FYM-allocation model in the presence of corner solution, with the objective of examining the role of various returns to FYM and farmer’s impatience on the propensity to allocate FYM for alternative purposes. We illustrate the model using data based on a random sample of 493 farm households in the central highlands of Ethiopia. We find that the higher the selling price of FYM is the higher the incentive for farmers to divert the resource from farming to marketing for burning outside the farm households. A farmers’ decision to turn FYM from farming to marketing due to heterogeneity in time preference is also an alternative account to explicate the correlation between farmers’ impatience and resource allocation. The implication is that the high discount rate and the rise of price encourage current consumption that has long term effect on the sustainable management of soil resource. The results are of paramount importance for the design of sustainable land management policy where soil fertility depletion is salient for low agricultural productivity.