cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Propagation of Disturbances in AC Electricity Grids
Creators: name: Tamrakar, Samyak Ratna
name: Conrath, Michael
name: Kettemann, Stefan
Publisher: name: arXiv
Year: 2017
Subjects: subject: Physics and Society (physics.soc-ph)
subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: The energy transition towards high shares of renewable energy will affect the stability of electricity grids in many ways. Here, we aim to study its impact on propagation of disturbances by solving nonlinear swing equations describing coupled rotating masses of synchronous generators and motors on different grid topologies. We consider a tree, a square grid and as a real grid topology, the German transmission grid. We identify ranges of parameters with different transient dynamics: the disturbance decays exponentially in time, superimposed by oscillations with the fast decay rate of a single node, or with a smaller decay rate without oscillations. Most remarkably, as the grid inertia is lowered, nodes may become correlated, slowing down the propagation from ballistic to diffusive motion, decaying with a power law in time. Applying linear response theory, we show that tree grids have a spectral gap leading to exponential relaxation as protected by topology and independent on grid size. Meshed grids are found to have a spectral gap which decreases with increasing grid size, leading to slow power law relaxation and collective diffusive propagation of disturbances. We conclude by discussing consequences if no measures are undertaken to preserve the grid inertia in the energy transition.
Towards a Rigorous Methodology for Measuring Adoption of RPKI Route Validation and Filtering
Creators: name: Reuter, Andreas
name: Bush, Randy
name: Cunha, Ítalo
name: Katz-Bassett, Ethan
name: Schmidt, Thomas C.
name: Wählisch, Matthias
Publisher: name: arXiv
Year: 2017
Subjects: subject: Networking and Internet Architecture (cs.NI)
subject: Cryptography and Security (cs.CR)
subject: FOS: Computer and information sciences
subject: C.2.2, C.2.3, C.2.5, C.4

description: A proposal to improve routing security---Route Origin Authorization (ROA)---has been standardized. A ROA specifies which network is allowed to announce a set of Internet destinations. While some networks now specify ROAs, little is known about whether other networks check routes they receive against these ROAs, a process known as Route Origin Validation (ROV). Which networks blindly accept invalid routes? Which reject them outright? Which de-preference them if alternatives exist? Recent analysis attempts to use uncontrolled experiments to characterize ROV adoption by comparing valid routes and invalid routes. However, we argue that gaining a solid understanding of ROV adoption is impossible using currently available data sets and techniques. Our measurements suggest that, although some ISPs are not observed using invalid routes in uncontrolled experiments, they are actually using different routes for (non-security) traffic engineering purposes, without performing ROV. We conclude with a description of a controlled, verifiable methodology for measuring ROV and present three ASes that do implement ROV, confirmed by operators.
Current Interactions from the One-Form Sector of Nonlinear Higher-Spin Equations
Creators: name: Gelfond, O. A.
name: Vasiliev, M. A.
Publisher: name: arXiv
Year: 2017
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The form of higher-spin current interactions in the sector of one-forms is derived from the nonlinear higher-spin equations in $AdS_4$. Quadratic corrections to higher-spin equations are shown to be independent of the phase of the parameter $η=\exp iφ$ in the full nonlinear higher-spin equations. The current deformation resulting from the nonlinear higher-spin equations is represented in the canonical form with the minimal number of space-time derivatives. The non-zero spin-dependent coupling constants of the resulting currents are determined in terms of the higher-spin coupling constant $η\barη$. Our results confirm the conjecture that (anti-)self-dual nonlinear higher-spin equations result from the full system at ($η=0$) $\bar η=0$.
description: 38 pages, no figures; V2: 39 pages, minor corrections, to be published version
On the Hamiltonian formalism of the Tetrad-Gravity with fermions
Creators: name: Lagraa, M. H.
name: Lagraa, M.
Publisher: name: arXiv
Year: 2017
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We extend the analysis of the Hamiltonian formalism of the d-dimensional tetrad-connection gravity to the fermionic field by fixing the non-dynamic part of the spatial connection to zero. Although the reduced phase space is equipped with complicated Dirac brackets, the first-class constraints which generate the diffeomorphisms and the Lorentz transformations satisfy a closed algebra with structural constants analogous to that of the pure gravity. We also show the existence of a canonical transformation leading to a new reduced phase space equipped with Dirac brackets having a canonical form leading to the same algebra of the first-class constraints.
description: 29 pages, improved version, references added. version accepted for publication in General Relativity and Gravitation
Soft-Hair-Enhanced Entanglement Beyond Page Curves in a Black-hole Evaporation Qubit Model
Creators: name: Hotta, Masahiro
name: Nambu, Yasusada
name: Yamaguchi, Koji
Publisher: name: arXiv
Year: 2017
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We propose a model with multiple qubits that reproduces the thermal properties of 4-dimensional (4-dim) Schwarzschild black holes (BHs) by simultaneously taking account of the emission of Hawking particles and the zero-energy soft hair evaporation at horizon. The results verify that the entanglement entropy between a qubit and other subsystems, including emitted radiation, is much larger than the BH entropy analogue of the qubit, as opposed to the Page curve prediction. Our result suggests that early Hawking radiation is entangled with soft hair, and that late Hawking radiation can be highly entangled with the degrees of freedom of BH, avoiding the emergence of a firewall at the horizon.
description: 10pages, 3 figures
Additional file 1: of Saving Lives at Birth; development of a retrospective theory of change, impact framework and prioritised metrics
Creators: name: Lalli, Marek
name: Ruysen, Harriet
name: Blencowe, Hannah
name: Yee, Kristen
name: Clune, Karen
name: DeSilva, Mary
name: Leffler, Marissa
name: Hillman, Emily
name: El-Noush, Haitham
name: Mulligan, Jo
name: Murray, Jeffrey
name: Silver, Karlee
name: Lawn, Joy
Publisher: name: figshare
Year: 2018
Subjects: subject: Space Science
subject: Medicine
subject: Molecular Biology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences
subject: Developmental Biology
subject: Science Policy

description: Search terms and results. (DOCX 12Â kb)
CAUSATIVE AGENTS FOR FOWL TYPHOID AND PULLORUM DISEASE IN POULTRY AND APPROACH TO CONTROL
Creators: name: Julianingsih, Dita
Publisher: name: Digital Repository at the University of Maryland
Year: 2023
Subjects: subject: Animal sciences
subject: Animal diseases
subject: Microbiology
subject: FOS: Biological sciences

description: In response to escalating consumer demand, a significant number of conventional US poultry farms have transitioned to antibiotic-free and chemical-free practices, particularly those adopting pasture/organic methods. However, recent reports highlight a resurgence of bacterial diseases in both conventional and pasture poultry farms, resulting in elevated bird mortality rates and reduced profitability. This comprehensive study investigates the prevalence of S. Gallinarum and S. Pullorum, causative agents of fowl typhoid and pullorum disease, in integrated crop-livestock/pasture farm environments and meat products. A total of 1,286 samples from 7 farms and 13 retail markets were examined, revealing that S. Pullorum and S. Gallinarum are common in both farm poultry environments and market products. Antibiotic resistance patterns, determined through an antibiogram assay, indicated high resistance to multiple antibiotics. S. Pullorum and S. Gallinarum were discovered in 2.7% and 1.5% of samples, respectively, at the pre-harvest stage. Only 1.6% of the meat samples recovered from retail markets had S. Gallinarum detected in them at the post-harvest level. Concurrently, a different study investigates the possibility of Orange Cold-press Valencia Terpeneless, a citrus oil variety, acting as a natural antimicrobial in poultry farming. This study tackles the problems caused by a decline in the usage of antibiotics, which has resulted in an increase in bacterial infections. Citrus oil exhibits potential as an antimicrobial agent, inhibiting the growth of S. Pullorum and S. Gallinarum, with consistent MIC and MBC values. Time-dependent experiments with 0.4% citrus oil show total suppression of bacterial growth, which is confirmed by environmental simulations. Furthermore, the study reveals that both Salmonella strains have downregulated their virulence genes, which may indicate a change in the pathogenicity of the bacteria. Overall, the findings highlight the crucial importance of surveillance programs and preventive measures. Citrus oil is presented as a promising natural alternative for antibiotics in the treatment of Salmonella-related infections in the poultry farming industry.
Mixed-valence insulators with neutral Fermi surfaces
Creators: name: Chowdhury, Debanjan
name: Sodemann, Inti
name: Senthil, T.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Samarium hexaboride is a classic three-dimensional mixed valence system with a high-temperature metallic phase that evolves into a paramagnetic charge insulator below 40 kelvin. A number of recent experiments have suggested the possibility that the low-temperature insulating bulk hosts electrically neutral gapless fermionic excitations. Here we show that a possible ground state of strongly correlated mixed valence insulators - composite exciton Fermi liquid - hosts a three dimensional Fermi surface of a neutral fermion, that we name the "composite exciton". We describe the mechanism responsible for the formation of such excitons, discuss the phenomenology of the composite exciton Fermi liquids and make comparison to experiments in SmB$_6$.
description: Final published version
Additional file 1: of Developmental change in look durations predicts later effortful control in toddlers at familial risk for ASD
Creators: name: Hendry, Alexandra
name: Jones, Emily
name: Bedford, Rachael
name: Gliga, Teodora
name: Charman, Tony
name: Johnson, Mark
Publisher: name: figshare
Year: 2018
Subjects: subject: Medicine
subject: Molecular Biology
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Developmental Biology

description: Supplementary analyses. (DOCX 58Â kb)
UPDATED: Contact V Knowledge Replication Study
Creators: name: Cheso, Diana
name: Zagefka, Hanna
name: Bjornsdottir, R. Thora
Publisher: name: Open Science Framework
Year: 2022
Subjects: subject: Social Psychology
subject: Gender and Sexuality
subject: Social and Behavioral Sciences
subject: Psychology
subject: FOS: Psychology
subject: Sociology
subject: FOS: Sociology

description: This is largely a replication study that will test whether contact mediates the relationship between knowledge and transprejudice.
Additional file 1: Figure S1. of Developmental change in look durations predicts later effortful control in toddlers at familial risk for ASD
Creators: name: Hendry, Alexandra
name: Jones, Emily
name: Bedford, Rachael
name: Gliga, Teodora
name: Charman, Tony
name: Johnson, Mark
Publisher: name: figshare
Year: 2018
Subjects: subject: Medicine
subject: Molecular Biology
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Developmental Biology

description: Supplementary analyses. (DOCX 58Â kb)
EMPIRICAL RESEARCH OF YOUTH EMPLOYMENT AND UNEMPLOYMENT IN BELARUS (REGIONAL ASPECT)
Creators: name: VANKEVICH ALENA
name: KORABAVA ALENA
Publisher: name: Вестник Витебского государственного технологического университета
Year: 2019
Subjects: БЕЗРАБОТИЦА
ЗАНЯТОСТЬ
РЫНОК ТРУДА МОЛОДЕЖИ
ТРУДОУСТРОЙСТВО
EMPLOYMENT
UNEMPLOYMENT
LABOUR MARKET OF YOUTH
EMPLOYABILITY

description: This article analyzes labour situation for young people from the region of Belarus. The features of the youth labour market are examined. The research is focused on the methodological differences between Belarusian approach to labour market statistics and ILO's approach. The labour situation for young people in one of the Belarusian regions is described using analysis of the data obtained from empirical research. The article represents results of youth employment and unemployment level assessment, which were received during the survey of the group of 307 young people at the age of 15-29 years by means of questionnaire for households survey on employment issues developed according to ILO's methodology. According to the survey the youth employment level in Vitebsk Region accounted for 36.8 % with the unemployment level being 10.3 % i.e. the actual youth unemployment level is higher than a registered one in Belarus and it is comparable in value to the level in other countries. The research reveals a high number of young people who work while studying. The assessment of means of job seeking showed that individual search alongside with friends' and relatives' help dominates. Other elements of labour market infrastructure (state employment agencies, recruitment agencies) are not popular despite the fact that their efficiency among the registered unemployed is rather high. The research resulted in the development of additional database of the condition of youth labour market in the Republic of Belarus (at regional level) which allows to diagnose the situation in youth employment which is beyond the vision of state employment agencies.
Additional file 1: Figure S1. of Sox5 is involved in germ-cell regulation and sex determination in medaka following co-option of nested transposable elements
Creators: name: Schartl, Manfred
name: Schories, Susanne
name: Wakamatsu, Yuko
name: Nagao, Yusuke
name: Hashimoto, Hisashi
name: ChloĂŠ Bertin
name: Mourot, Brigitte
name: Schmidt, Cornelia
name: Wilhelm, Dagmar
name: Centanin, Lazaro
name: Guiguen, Yann
name: Herpin, Amaury
Publisher: name: figshare
Year: 2018
Subjects: subject: 29999 Physical Sciences not elsewhere classified
subject: FOS: Physical sciences
subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Evolutionary Biology
subject: Developmental Biology
subject: Computational Biology

description: Annotation of the dmrt1bY promoter. Bold underlined: Rex1 element. Bold red: location of sox5 binding sites. Dmrt1bY exon 0 is in blue letters. Primer sets used for ChIP are provided. (DOCX 169 kb)
Self-structured behavior in an applied voluntary task switching paradigm
Creators: name: Wehner, Peggy
name: Herbers, Judith
name: Surrey, Caroline
name: Scherbaum, Stefan
name: Pannasch, Sebastian
Publisher: name: Open Science Framework
Year: 2022
Subjects: subject: Cognitive Psychology
subject: Social and Behavioral Sciences
subject: Psychology
subject: FOS: Psychology

description: The aim of this project is the investigation of participants' behavior in an applied voluntary task switching paradigm. We would like to examine possible influencing factors on the task processing behavior of the participants, check for the existence of typical effects of voluntary task switching in our paradigm, and demonstrate that such an applied paradigm offers the possibility to investigate additional processes and mechanisms.
РОЛЬ ЛОГИСТИКИ В РАЗВИТИИ ЭКСПОРТА РЕСПУБЛИКИ БЕЛАРУСЬ: ПРОБЛЕМЫ И НАПРАВЛЕНИЯ РЕШЕНИЯ
Creators: name: ГОРЯЧЕВА С.М.
Publisher: name: Вестник Витебского государственного технологического университета
Year: 2019
Subjects: ВНЕШНЯЯ ТОРГОВЛЯ
ЭФФЕКТИВНОСТЬ
ГЛОБАЛИЗАЦИЯ
ЛОГИСТИКА
ЭКСПОРТ
ИМПОРТ
САЛЬДО
ВНЕШНИЕ РЫНКИ
ПРОБЛЕМЫ
ГОСУДАРСТВО
EFFICIENCY
GLOBALIZATION
LOGISTICS
FOREIGN TRADE
EXPORT
IMPORT
BALANCE
FOREIGN MARKETS
PROBLEMS
STATE

description: Актуальность исследования предопределяется необходимостью формирования положительного сальдо внешнеторговой деятельности Республики Беларусь. Основная задача заключается в достижении превышения экспорта над импортом по видам экономической деятельности в разрезе товаров и услуг, регионов и стратегических партнеров. Необходимо снизить сложившееся за ряд лет отрицательное сальдо внешней торговли товарами и повысить долю товаров и услуг с положительным сальдо. Учитывая выгодное географическое расположение Республики Беларусь и то, что это транзитное государство, через которое ввозится и вывозится большое количество материальных потоков, происходит формирование логистических цепей поставок грузов, возникает большая потребность в увеличении транспортно логистических услуг. Объектом исследования являются внешняя торговля и логистический рынок Республики Беларусь, экономическая политика государства, определяющая их роль и взаимосвязи. Целью исследования является комплексный, системный анализ основных тенденций развития внешней торговли Республики Беларусь, возникающих проблем эффективности экспорта и логистики, формирование роли логистики в повышении экспортного потенциала государства и разработка направлений его повышения. Научная новизна исследования: на основе официальной статистической информации дана оценка экономической эффективности экспорта, показаны возможности логистики в увеличении экспорта товаров и услуг Республики Беларусь, выявлены проблемы и разработаны направления его повышения. На взгляд автора, недостаточная результативность участия логистики в увеличении экспорта товаров и услуг обусловливается отсутствием региональных центров формирования и управления логистическими цепями поставок товаров и услуг на зарубежные рынки сбыта.
Deforming Black Hole and Cosmological Solutions by Quasiperiodic and/or Pattern Forming Structures in Modified and Einstein Gravity
Creators: name: Bubuianu, Laurenţiu
name: Vacaru, Sergiu I.
Publisher: name: arXiv
Year: 2017
Subjects: subject: General Physics (physics.gen-ph)
subject: FOS: Physical sciences

description: We elaborate on the anholonomic frame deformation method, AFDM, for constructing exact solutions with quasiperiodic structure in modified gravity theories, MGTs, and general relativity, GR. Such solutions are described by generic off-diagonal metrics, nonlinear and linear connections and (effective) matter sources with coefficients depending on all spacetime coordinates via corresponding classes of generation and integration functions and (effective) matter sources. There are studied effective free energy functionals and nonlinear evolution equations for generating off-diagonal quasiperiodic deformations of black hole and/or homogeneous cosmological metrics. The physical data for such functionals are stated by different values of constants and prescribed symmetries for defining quasiperiodic structures at cosmological scales, or astrophysical objects in nontrivial gravitational backgrounds some similar forms as in condensed matter physics. It is shown how quasiperiodic structures determined by general nonlinear, or additive, functionals for generating functions and (effective) sources may transform black hole like configurations into cosmological metrics and inversely. We speculate on possible implications of quasiperiodic solutions in dark energy and dark matter physics. Finally, it is concluded that geometric methods for constructing exact solutions consist an important alternative tool to numerical relativity for investigating nonlinear effects in astrophysics and cosmology.
description: Accepted to EPJC, latex2e, version 3, 43 pages with table of contents; new references and modified formulas which allow a unified formulation both on nonholonomic manifolds and tangent bundles
Additional file 1: of Associations of childhood, maternal and household dietary patterns with childhood stunting in Ethiopia: proposing an alternative and plausible dietary analysis method to dietary diversity scores
Creators: name: Yohannes Melaku
name: Gill, Tiffany
name: Taylor, Anne
name: Adams, Robert
name: Zumin Shi
name: Amare Worku
Publisher: name: figshare
Year: 2018
Subjects: subject: Medicine
subject: Biotechnology
subject: Ecology
subject: FOS: Biological sciences
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: Science Policy
subject: Computational Biology

description: Table S1. Components of food groups used for dietary pattern (household and maternal), 2014. Table S2. Components of food groups used for dietary pattern (children), 2014. Table S3. Proportion children, mothers and household by dietary diversity scores (DDS), 2014. Table S4. Dietary diversity and stunting in Ethiopia, 2014. Table S5. Prevalence ratios (95% confidence interval) for the associations of household, maternal and child dietary diversity scores and dietary patterns with childhood stunting in Ethiopia, 2014 (PDF 173 kb)
A Modularized Efficient Framework for Non-Markov Time Series Estimation
Creators: name: Schamberg, Gabriel
name: Ba, Demba
name: Coleman, Todd P.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Optimization and Control (math.OC)
subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics

description: We present a compartmentalized approach to finding the maximum a-posteriori (MAP) estimate of a latent time series that obeys a dynamic stochastic model and is observed through noisy measurements. We specifically consider modern signal processing problems with non-Markov signal dynamics (e.g. group sparsity) and/or non-Gaussian measurement models (e.g. point process observation models used in neuroscience). Through the use of auxiliary variables in the MAP estimation problem, we show that a consensus formulation of the alternating direction method of multipliers (ADMM) enables iteratively computing separate estimates based on the likelihood and prior and subsequently "averaging" them in an appropriate sense using a Kalman smoother. As such, this can be applied to a broad class of problem settings and only requires modular adjustments when interchanging various aspects of the statistical model. Under broad log-concavity assumptions, we show that the separate estimation problems are convex optimization problems and that the iterative algorithm converges to the MAP estimate. As such, this framework can capture non-Markov latent time series models and non-Gaussian measurement models. We provide example applications involving (i) group-sparsity priors, within the context of electrophysiologic specrotemporal estimation, and (ii) non-Gaussian measurement models, within the context of dynamic analyses of learning with neural spiking and behavioral observations.
description: Made correction to residuals in Section III.D., fixed typos, and added information on the official published version
ЦЕЛЕВОЙ ПОДХОД К ОЦЕНКЕ КОММЕРЧЕСКОЙ ЭФФЕКТИВНОСТИ ОРГАНИЗАЦИИ
Creators: name: КАСАЕВА Т.В.
name: МАТВЕЕВ М.В.
Publisher: name: Вестник Витебского государственного технологического университета
Year: 2019
Subjects: СИСТЕМА СБАЛАНСИРОВАННЫХ ПОКАЗАТЕЛЕЙ
КОММЕРЧЕСКАЯ ЭФФЕКТИВНОСТЬ БИЗНЕСА
КЛЮЧЕВЫЕ ПОКАЗАТЕЛИ
ИНДИКАТОРЫ
ОЦЕНКА ВЫПОЛНЕНИЯ СТРАТЕГИИ
ОЦЕНКА РИСКОВ
COMMERCIAL EFFICIENCY OF BUSINESS
SYSTEM OF BALANCED INDICATORS
KEY INDICATORS
INDICATORS
EVALUATION OF STRATEGY IMPLEMENTATION
RISK ASSESSMENT

description: Своевременное внедрение, учет и анализ показателей оценки уровня коммерческой эффективности позволяют не только определить сильные и слабые стороны основных бизнес процессов деятельности организации, но и выявить резервы его повышения. С этой целью необходимо активнее внедрять зарубежный опыт внедрения систем контроля и учета уровня эффективности, основанный на целевом подходе, практическое использование которых в различных сферах функционирования экономических субъектов доказывает их результативность и целесообразность. В данном исследовании предпринята попытка разработки методики оценки коммерческой эффективности организации, основанной на разработке стратегических целей, установлении их числовых параметров, оценке достижения поставленных целей. Для разработки направлений развития бизнеса и повышения его коммерческой эффективности предложена система оценки рисков.
Honeycombs in the Pascal triangle and beyond
Creators: name: Blair, Matthew
name: Flórez, Rigoberto
name: Mukherjee, Antara
Publisher: name: arXiv
Year: 2022
Subjects: subject: History and Overview (math.HO)
subject: FOS: Mathematics
subject: Primary 11B39, Secondary 11B83

description: In this paper we present a geometric approach to discovering some known and some new identities using triangular arrays. Our main aim is to demonstrate how to use the geometric patterns (by Carlitz), in the Pascal and Hosoya triangles to rediscover some classical identities and integer sequences. Therefore, we use new techniques in classical settings which then provide a new perspective in undergraduate research.
description: This paper was partially published in Math Horizons, February 2022
PREREQUISITES AND FACTORS OF ICT SECTOR DEVELOPMENT IN EASTERN PARTNERSHIP COUNTRIES
Creators: name: SOVETNIKOVA OLGA
Publisher: name: Вестник Витебского государственного технологического университета
Year: 2019
Subjects: IT ИНДУСТРИЯ
СТРАНЫ ВОСТОЧНОГО ПАРТНЕРСТВА
СЕКТОР ИКТ
РЫНОК АУТСОРСИНГА
ЭЛЕКТРОННОЕ ПРАВИТЕЛЬСТВО
ИНДЕКС РАЗВИТИЯ
IT INDUSTRY
EASTERN PARTNERSHIP COUNTRIES
ICT SECTOR
OUTSOURCING MARKET
E-GOVERNMENT
DEVELOPMENT INDEX

description: The article analyzes the ICT sector in the Eastern partnership countries and identifies the factors influencing the development of the Internet economy. The rating of the e government of the Eastern partnership countries was assessed; the main trends in the development of the startup industry were considered; recommendations for the development of the ICT sector for the Eastern partnership countries were developed.
title:  Ti sono già venute le parole? Silenzi, corpi e contaminazioni nell’Infanzia di Ljuvers di Boris Pasternak
Creators: name: Polakova  ,  Kristina
Publisher: name: Roma Tre University
publisherIdentifier: https://ror.org/05vf0dg29
publisherIdentifierScheme: ROR
Year: 2024

description: Partendo dall’idea della poesia come «lingua del fatto organico» l’articolo si pone l’obiettivo di rintracciare il percorso di una tale parola poetica nel racconto Detstvo Ljuvers di Pasternak. Si tenterà di vedere in Ženja Ljuvers non tanto un ‘principio femminile’, quanto il polo di un confronto imprescindibile con un’alterità incarnata. Attraverso una lettura di stampo semiotico si metterà in luce l’incontro di Ženja con varie zone di alterità, tra cui spicca quella del corpo. Ne emergerà l’arco di una formazione percettiva, espressiva e morale che dallo spazio magico dell’infanzia approda alla necessità di una contaminazione rigenerante con una realtà infinitamente interconnessa.

This article is based on the idea that poetry is, as Pasternak notes, the ‘language of organic fact’ and retraces the path of such a poetic word in his work Detstvo Liuvers (The Childhood of Liuvers). An attempt will be made to view Zhenia Liuvers not as a ‘principle of femininity’, but rather as one side of an essential comparison with an embodied alterity. I will use a semiotic framework to highlight Zhenia’s relationship with different zones of alterity, particularly the body. This will provide an insight into an arc of perceptive, expressive and moral developments that begins in the magical realm of childhood and concludes at a need to blend with an infinitely interconnected reality if it is to regenerate.
description: 20/Venti. Nuovi studi sulla cultura russa e sovietica degli anni Venti del XX secolo
A Representation Separation Perspective to Correspondences-free Unsupervised 3D Point Cloud Registration
Creators: name: Zhang, Zhiyuan
name: Sun, Jiadai
name: Dai, Yuchao
name: Zhou, Dingfu
name: Song, Xibin
name: He, Mingyi
Publisher: name: arXiv
Year: 2022
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: 3D point cloud registration in remote sensing field has been greatly advanced by deep learning based methods, where the rigid transformation is either directly regressed from the two point clouds (correspondences-free approaches) or computed from the learned correspondences (correspondences-based approaches). Existing correspondences-free methods generally learn the holistic representation of the entire point cloud, which is fragile for partial and noisy point clouds. In this paper, we propose a correspondences-free unsupervised point cloud registration (UPCR) method from the representation separation perspective. First, we model the input point cloud as a combination of pose-invariant representation and pose-related representation. Second, the pose-related representation is used to learn the relative pose wrt a "latent canonical shape" for the source and target point clouds respectively. Third, the rigid transformation is obtained from the above two learned relative poses. Our method not only filters out the disturbance in pose-invariant representation but also is robust to partial-to-partial point clouds or noise. Experiments on benchmark datasets demonstrate that our unsupervised method achieves comparable if not better performance than state-of-the-art supervised registration methods.
description: Accepted by IEEE Geoscience and Remote Sensing Letters
Additional file 1: of Full genome characterization of porcine circovirus type 3 isolates reveals the existence of two distinct groups of virus strains
Creators: name: Fux, Robert
name: SĂśckler, Christina
name: Link, Ellen
name: Renken, Christine
name: Krejci, Roman
name: Sutter, Gerd
name: Ritzmann, Mathias
name: Eddicks, Matthias
Publisher: name: figshare
Year: 2018
Subjects: subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Genetics
subject: Evolutionary Biology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Ecology
subject: 69999 Biological Sciences not elsewhere classified
subject: 60506 Virology

description: PCV3 sequences used for phylogenetic analysis. (DOCX 15Â kb)
VRNet: Learning the Rectified Virtual Corresponding Points for 3D Point Cloud Registration
Creators: name: Zhang, Zhiyuan
name: Sun, Jiadai
name: Dai, Yuchao
name: Fan, Bin
name: He, Mingyi
Publisher: name: arXiv
Year: 2022
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: 3D point cloud registration is fragile to outliers, which are labeled as the points without corresponding points. To handle this problem, a widely adopted strategy is to estimate the relative pose based only on some accurate correspondences, which is achieved by building correspondences on the identified inliers or by selecting reliable ones. However, these approaches are usually complicated and time-consuming. By contrast, the virtual point-based methods learn the virtual corresponding points (VCPs) for all source points uniformly without distinguishing the outliers and the inliers. Although this strategy is time-efficient, the learned VCPs usually exhibit serious collapse degeneration due to insufficient supervision and the inherent distribution limitation. In this paper, we propose to exploit the best of both worlds and present a novel robust 3D point cloud registration framework. We follow the idea of the virtual point-based methods but learn a new type of virtual points called rectified virtual corresponding points (RCPs), which are defined as the point set with the same shape as the source and with the same pose as the target. Hence, a pair of consistent point clouds, i.e. source and RCPs, is formed by rectifying VCPs to RCPs (VRNet), through which reliable correspondences between source and RCPs can be accurately obtained. Since the relative pose between source and RCPs is the same as the relative pose between source and target, the input point clouds can be registered naturally. Specifically, we first construct the initial VCPs by using an estimated soft matching matrix to perform a weighted average on the target points. Then, we design a correction-walk module to learn an offset to rectify VCPs to RCPs, which effectively breaks the distribution limitation of VCPs. Finally, we develop a hybrid loss function to enforce the shape and geometry structure consistency ...
description: Accepted by IEEE Transactions on Circuits and Systems for Video Technology
Subpicosecond $X$ rotations of atomic clock states
Creators: name: Song, Yunheung
name: Lee, Han-gyeol
name: Kim, Hyosub
name: Jo, Hanlae
name: Ahn, Jaewook
Publisher: name: arXiv
Year: 2017
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: We demonstrate subpicosecond-time-scale population transfer between the pair of hyperfine ground states of atomic rubidium using a single laser-pulse. Our scheme utilizes the geometric and dynamic phases induced during Rabi oscillation through the fine-structure excited state in order to construct an $X$ rotation gate for the hyperfine-state qubit system. Experiment performed with a femtosecond laser and cold rubidium atoms, in a magneto-optical trap, shows over 98\% maximal population transfer between the clock states.
description: 5 pages, 5 figures
Universal fluctuations of Floquet topological invariants at low frequencies
Creators: name: Rodriguez-Vega, M.
name: Seradjeh, B.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We study the low-frequency dynamics of periodically driven one-dimensional systems hosting Floquet topological phases. We show, both analytically and numerically, in the low-frequency limit $Ω\to0$, the topological invariants of a chirally-symmetric driven system exhibit universal fluctuations. While the topological invariants in this limit nearly vanish on average over a small range of frequencies, we find that they follow a universal Gaussian distribution with a width that scales as $1/\sqrtΩ$. We explain this scaling based on a diffusive structure of the winding numbers of the Floquet-Bloch evolution operator at low frequency. We also find that the maximum quasienergy gap remains finite and scales as $Ω^2$. Thus, we argue that the adiabatic limit of a Floquet topological insulator is highly structured, with universal fluctuations persisting down to very low frequencies.
description: In this version we present additional numerical results for the topological invariants of the SSH, Kitaev, and SSH-Kitaev models in the low-frequency regime. The draft has 5 pages, and 11 figures
Simulations on the influence of spatially-varying spin transport parameters on the measured spin lifetime in graphene non-local spin valves
Creators: name: Drögeler, Marc
name: Volmer, Frank
name: Stampfer, Christoph
name: Beschoten, Bernd
Publisher: name: arXiv
Year: 2017
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Spin transport properties of graphene non-local spin valve devices are typically determined from Hanle spin precession measurements by using a simplified solution of the one-dimensional Bloch-Torrey equation which assumes infinitely long transport channels and uniform spin transport parameter. We investigate the effects of a finite graphene size and explore the influence of spatially-varying transport parameters on the measured Hanle curves by finite element simulations. We assume enhanced spin dephasing in the contact-covered graphene areas with additional Fermi level pinning and explore the influence of non-magnetic reference electrodes which are not properly decoupled from graphene. In experiments, it is typically observed that the spin lifetime increases with increasing charge carrier density. None of our simulations can reproduce this trend indicating that this dependency originates from spin transport through graphene areas which are not covered by contacts. We find that the extracted spin lifetime might be overestimated in flakes which are shorter than the spin diffusion length. Moreover, contact-induced spin dephasing leads to an overall reduction of the extracted spin lifetime. Additionally, we show that non-magnetic reference electrodes may also influence the measured spin lifetime even though they are not part of the transport area under investigation.
description: 7 pages, 3 figures
MOESM1 of Combinatorial pretreatment and fermentation optimization enabled a record yield on lignin bioconversion
Creators: name: Liu, Zhi-Hua
name: Shangxian Xie
name: Furong Lin
name: Mingjie Jin
name: Yuan, Joshua
Publisher: name: figshare
Year: 2018
Subjects: subject: Biochemistry
subject: Space Science
subject: Medicine
subject: Molecular Biology
subject: Pharmacology
subject: Ecology
subject: FOS: Biological sciences
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics
subject: Plant Biology
subject: Computational Biology

description: Additional file 1. Additional table and figure.
Prodsimplicial-Neighborly Polytopes
Creators: name: Matschke, Benjamin
name: Pfeifle, Julian
name: Pilaud, Vincent
Publisher: name: arXiv
Year: 2009
Subjects: subject: Metric Geometry (math.MG)
subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 52B05, 52B11

description: Simultaneously generalizing both neighborly and neighborly cubical polytopes, we introduce PSN polytopes: their k-skeleton is combinatorially equivalent to that of a product of r simplices. We construct PSN polytopes by three different methods, the most versatile of which is an extension of Sanyal and Ziegler's "projecting deformed products" construction to products of arbitrary simple polytopes. For general r and k, the lowest dimension we achieve is 2k+r+1. Using topological obstructions similar to those introduced by Sanyal to bound the number of vertices of Minkowski sums, we show that this dimension is minimal if we additionally require that the PSN polytope is obtained as a projection of a polytope that is combinatorially equivalent to the product of r simplices, when the dimensions of these simplices are all large compared to k.
description: 28 pages, 9 figures; minor corrections
Optimal bounds for the colored Tverberg problem
Creators: name: Blagojević, Pavle V. M.
name: Matschke, Benjamin
name: Ziegler, Günter M.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Combinatorics (math.CO)
subject: Algebraic Topology (math.AT)
subject: FOS: Mathematics
subject: 52A35, 55S35

description: We prove a "Tverberg type" multiple intersection theorem. It strengthens the prime case of the original Tverberg theorem from 1966, as well as the topological Tverberg theorem of Barany et al. (1980), by adding color constraints. It also provides an improved bound for the (topological) colored Tverberg problem of Barany & Larman (1992) that is tight in the prime case and asymptotically optimal in the general case. The proof is based on relative equivariant obstruction theory.
description: 17 pages, 3 figures; revised version (February 2013), to appear in J. European Math. Soc. (JEMS)
Optimal bounds for a colorful Tverberg--Vrecica type problem
Creators: name: Blagojevic, Pavle
name: Matschke, Benjamin
name: Ziegler, Gunter
Publisher: name: arXiv
Year: 2009
Subjects: subject: Algebraic Topology (math.AT)
subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 52A35, 55S35

description: We prove the following optimal colorful Tverberg-Vrecica type transversal theorem: For prime r and for any k+1 colored collections of points C^l of size |C^l|=(r-1)(d-k+1)+1 in R^d, where each C^l is a union of subsets (color classes) C_i^l of size smaller than r, l=0,...,k, there are partition of the collections C^l into colorful sets F_1^l,...,F_r^l such that there is a k-plane that meets all the convex hulls conv(F_j^l), under the assumption that r(d-k) is even or k=0. Along the proof we obtain three results of independent interest: We present two alternative proofs for the special case k=0 (our optimal colored Tverberg theorem (2009)), calculate the cohomological index for joins of chessboard complexes, and establish a new Borsuk-Ulam type theorem for (Z_p)^m-equivariant bundles that generalizes results of Volovikov (1996) and Zivaljevic (1999).
description: Substantially revised version: new notation, improved results, additional references; 12 pages, 2 figures
Hyperelliptic modular curves $X_0(n)$ and isogenies of elliptic curves over quadratic fields
Creators: name: Bruin, Peter
name: Najman, Filip
Publisher: name: arXiv
Year: 2014
Subjects: subject: Number Theory (math.NT)
subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics

description: Let $n$ be an integer such that the modular curve $X_0(n)$ is hyperelliptic of genus $\ge2$ and such that the Jacobian of $X_0(n)$ has rank $0$ over $\mathbb Q$. We determine all points of $X_0(n)$ defined over quadratic fields, and we give a moduli interpretation of these points. As a consequence, we show that up to $\overline{\mathbb Q}$-isomorphism, all but finitely many elliptic curves with $n$-isogenies over quadratic fields are in fact $\mathbb Q$-curves, and we list all exceptions. We also show that, again with finitely many exceptions up to $\overline{\mathbb Q}$-isomorphism, every $\mathbb Q$-curve $E$ over a quadratic field $K$ admitting an $n$-isogeny is $d$-isogenous, for some $d\mid n$, to the twist of its Galois conjugate by some quadratic extension $L$ of $K$; we determine $d$ and $L$ explicitly.
description: 30 pages, published version displays a wrong equation of X_0(26), has a few missing exceptional points on X_0(n) for n=22,26 and 46, three points too many on X_0(23), and a typo in a point for X_0(29). Magma code is included
The Optical/NIR afterglow of GRB 111209A: Complex yet not Unprecedented
Creators: name: Kann, D. A.
name: Schady, P.
name: E., F. Olivares
name: Klose, S.
name: Rossi, A.
name: Perley, D. A.
name: Zhang, B.
name: Krühler, T.
name: Greiner, J.
name: Guelbenzu, A. Nicuesa
name: Elliott, J.
name: Knust, F.
name: Cano, Z.
name: Filgas, R.
name: Pian, E.
name: Mazzali, P.
name: Fynbo, J. P. U.
name: Leloudas, G.
name: Afonso, P. M. J.
name: Delvaux, C.
name: Graham, J. F.
name: Rau, A.
name: Schmidl, S.
name: Schulze, S.
name: Tanga, M.
name: Updike, A. C.
name: Varela, K.
Publisher: name: arXiv
Year: 2017
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Afterglows of Gamma-Ray Bursts (GRBs) are simple in the most basic model, but can show many complex features. The ultra-long duration GRB 111209A, one of the longest GRBs ever detected, also has the best-monitored afterglow in this rare class of GRBs. We want to address the question whether GRB 111209A was a special event beyond its extreme duration alone, and whether it is a classical GRB or another kind of high-energy transient. The afterglow may yield significant clues. We present afterglow photometry obtained in seven bands with the GROND imager as well as in further seven bands with the UVOT telescope on-board the Neil Gehrels Swift Observatory. The light curve is analysed by multi-band modelling and joint fitting with power-laws and broken power-laws, and we use the contemporaneous GROND data to study the evolution of the spectral energy distribution. We compare the optical afterglow to a large ensemble we have analysed in earlier works, and especially to that of another ultra-long event, GRB 130925A. We furthermore undertake a photometric study of the host galaxy. We find a strong, chromatic rebrightening event at approx 0.8 days after the GRB, during which the spectral slope becomes redder. After this, the light curve decays achromatically, with evidence for a break at about 9 days after the trigger. The afterglow luminosity is found to not be exceptional. We find that a double-jet model is able to explain the chromatic rebrightening. The afterglow features have been detected in other events and are not unique. The duration aside, the GRB prompt emission and afterglow parameters of GRB 111209A are in agreement with the known distributions for these parameters. While the central engine of this event may differ from that of classical GRBs, there are multiple lines of evidence pointing to GRB 111209A resulting from the core-collapse of a massive star with a stripped envelope.
description: A&A, in press, expanded discussion on energetics, and updated otherwise. 32 pages, 17 pages main paper, 2 pages Appendix, 11 pages data tables. arXiv admin note: substantial text overlap with arXiv:1606.06791
Additional file 1: of “I beg you…breastfeed the baby, things changed”: infant feeding experiences among Ugandan mothers living with HIV in the context of evolving guidelines to prevent postnatal transmission
Creators: name: Dunkley, Emma
name: Scholastic Ashaba
name: Burns, Bridget
name: O’Neil, Kasey
name: Sanyu, Naomi
name: Akatukwasa, Cecilia
name: Kastner, Jasmine
name: Berry, Nicole
name: Psaros, Christina
name: Matthews, Lynn
name: Kaida, Angela
Publisher: name: figshare
Year: 2018
Subjects: subject: Medicine
subject: Neuroscience
subject: Sociology
subject: FOS: Sociology
subject: Developmental Biology
subject: Cancer
subject: Computational Biology

description: PPD Interview Guide. (PDF 481 kb)
The solvable length of groups of local diffeomorphisms
Creators: name: Ribón, Javier
Publisher: name: arXiv
Year: 2014
Subjects: subject: Dynamical Systems (math.DS)
subject: Complex Variables (math.CV)
subject: FOS: Mathematics
subject: Primary: 37F75, 20F16, Secondary: 20F14, 32H50

description: We are interested in the algebraic properties of groups of local biholomorphisms and their consequences. A natural question is whether the complexity of solvable groups is bounded by the dimension of the ambient space. In this spirit we show that $2n+1$ is the sharpest upper bound for the derived length of solvable subgroups of the group $\mathrm{Diff}({\mathbb C}^{n},0)$ of local complex analytic diffeomorphisms for $n=2,3,4,5$.
description: 40 pages, Accepted for publication in Journal f\"ur die reine und angewandte Mathematik
Doppelgängers: Bijections of Plane Partitions
Creators: name: Hamaker, Zachary
name: Patrias, Rebecca
name: Pechenik, Oliver
name: Williams, Nathan
Publisher: name: arXiv
Year: 2016
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics

description: We say two posets are "doppelgängers" if they have the same number of $P$-partitions of each height $k$. We give a uniform framework for bijective proofs that posets are doppelgängers by synthesizing $K$-theoretic Schubert calculus techniques of H. Thomas and A. Yong with M. Haiman's rectification bijection and an observation of R. Proctor. Geometrically, these bijections reflect the rational equivalence of certain subvarieties of minuscule flag manifolds. As a special case, we provide the first bijective proof of a 1983 theorem of R. Proctor---that plane partitions of height $k$ in a rectangle are equinumerous with plane partitions of height $k$ in a trapezoid.
description: 38 pages, improved exposition