cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Comparison of nuclear data uncertainty propagation methodologies for PWR burn-up simulations
Creators: name: Diez, Carlos Javier
name: Buss, Oliver
name: Hoefer, Axel
name: Porsch, Dieter
name: Cabellos, Oscar
Publisher: name: arXiv
Year: 2014
Subjects: subject: Nuclear Theory (nucl-th)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: Several methodologies using different levels of approximations have been developed for propagating nuclear data uncertainties in nuclear burn-up simulations. Most methods fall into the two broad classes of Monte Carlo approaches, which are exact apart from statistical uncertainties but require additional computation time, and first order perturbation theory approaches, which are efficient for not too large numbers of considered response functions but only applicable for sufficiently small nuclear data uncertainties. Some methods neglect isotopic composition uncertainties induced by the depletion steps of the simulations, others neglect neutron flux uncertainties, and the accuracy of a given approximation is often very hard to quantify. In order to get a better sense of the impact of different approximations, this work aims to compare results obtained based on different approximate methodologies with an exact method, namely the NUDUNA Monte Carlo based approach developed by AREVA GmbH. In addition, the impact of different covariance data is studied by comparing two of the presently most complete nuclear data covariance libraries (ENDF/B-VII.1 and SCALE 6.0), which reveals a high dependency of the uncertainty estimates on the source of covariance data. The burn-up benchmark Exercise I-1b proposed by the OECD expert group "Benchmarks for Uncertainty Analysis in Modeling (UAM) for the Design, Operation and Safety Analysis of LWRs" is studied as an example application. The burn-up simulations are performed with the SCALE 6.0 tool suite.
description: 16 pages, article submitted to Annals of Nuclear Energy
ОСОБЕННОСТИ ВЫБОРА ОРГАНИЗАЦИОННО-ПРАВОВОЙ ФОРМЫ НА ПРИМЕРЕ ИП И ООО
Creators: name: НЕФЁДОВА С.В.
name: СОЛОПОВА Ю.В.
Publisher: name: Экономика и бизнес: теория и практика
Year: 2020
Subjects: ИНДИВИДУАЛЬНОЕ ПРЕДПРИНИМАТЕЛЬСТВО
ООО
ОРГАНИЗАЦИОННО-ПРАВОВЫЕ ФОРМЫ
НАЛОГООБЛОЖЕНИЕ
РЕГИСТРАЦИЯ
INDIVIDUAL ENTREPRENEURSHIP
LLC
ORGANIZATIONAL AND LEGAL FORMS
TAXATION
REGISTRATION

description: В данной статье рассматриваются такие организационно-правовые формы бизнеса, как индивидуальное предпринимательство и ООО. Актуальность данного исследования состоит в том, что достаточно много людей хотят открыть свой бизнес, но не знают, какую форму выбрать. Цель данного исследования сравнить две самые распространенные формы бизнеса и выявить преимущества и недостатки каждой. Для достижения поставленной цели используется сравнение ИП и ООО по различным критериям.This article discusses such organizational and legal forms of business as individual entrepreneurship and LLC. The relevance of this research is that quite a lot of people want to open their own business, but do not know what form to choose. The purpose of this study is to compare the two most common forms of business and identify the advantages and disadvantages of each. To achieve this goal, we use a comparison of individual entrepreneurs and LLC based on various criteria.
Knowledge and attitudes of Implementation Support Practitioners-Findings from a systematic integrative review
Creators: name: Metz, A.
name: Varsi, C.
name: Burke, K.
name: Bartley, L.
name: Bührmann, L.
name: Albers, B.
name: Driessen, P.
Publisher: name: NLM (Medline)
Year: 2022

description: BACKGROUND: It requires thoughtful planning and work to successfully apply and sustain research-supported interventions like healthcare treatments, social support, or preventive programs in practice. Implementation support practitioners (ISPs) such as facilitators, technical assistance providers, knowledge brokers, coaches or consultants may be involved to actively support the implementation process. This article presents knowledge and attitudes ISPs bring to their work. METHODS: Building on a previously developed program logic, a systematic integrative review was conducted. Literature was sourced by searching nine electronic data bases, organizational websites, and by launching a call for publications among selected experts and social media. Article screening was performed independently by two researchers, and data from included studies were extracted by members of the research team and quality-assured by the lead researcher. The quality of included RCTs was assessed based on a framework by Hodder and colleagues. Thematic Analysis was used to capture information on knowledge and attitudes of ISPs across the included studies. Euler diagrams and heatmaps were used to present the results. RESULTS: Results are based on 79 included studies. ISPs reportedly displayed knowledge about the clinical practice they work with, implementation / improvement practice, the local context, supporting change processes, and facilitating evidence-based practice in general. In particular, knowledge about the intervention to be implemented and its target population, specific improvement / implementation methods and approaches, organizational structures and sensitivities, training, and characteristics of (good) research was described in the literature. Seven themes describing ISPs' attitudes were identified: 1) professional, 2) motivated / motivating / encouraging / empowering, 3) empathetic / respectful / sensitive, 4) collaborative / inclusive, 5) authentic, 6) creative / flexible / innovative / adaptive, and 7) frank / direct / honest. Pertaining to a professional attitude, being responsive and focused were the most prevalent indicators across included publications. CONCLUSION: The wide range and complexity of knowledge and attitudes found in the literature calls for a comprehensive and systematic approach to collaboratively develop a professional role for ISPs across disciplines. Embedding the ISP role in different health and social welfare settings will enhance implementation capacities considerably.
A Survey on Metaverse: Fundamentals, Security, and Privacy
Creators: name: Wang, Yuntao
name: Su, Zhou
name: Zhang, Ning
name: Xing, Rui
name: Liu, Dongxiao
name: Luan, Tom H.
name: Shen, Xuemin
Publisher: name: arXiv
Year: 2022
Subjects: subject: Cryptography and Security (cs.CR)
subject: FOS: Computer and information sciences

description: Metaverse, as an evolving paradigm of the next-generation Internet, aims to build a fully immersive, hyper spatiotemporal, and self-sustaining virtual shared space for humans to play, work, and socialize. Driven by recent advances in emerging technologies such as extended reality, artificial intelligence, and blockchain, metaverse is stepping from science fiction to an upcoming reality. However, severe privacy invasions and security breaches (inherited from underlying technologies or emerged in the new digital ecology) of metaverse can impede its wide deployment. At the same time, a series of fundamental challenges (e.g., scalability and interoperability) can arise in metaverse security provisioning owing to the intrinsic characteristics of metaverse, such as immersive realism, hyper spatiotemporality, sustainability, and heterogeneity. In this paper, we present a comprehensive survey of the fundamentals, security, and privacy of metaverse. Specifically, we first investigate a novel distributed metaverse architecture and its key characteristics with ternary-world interactions. Then, we discuss the security and privacy threats, present the critical challenges of metaverse systems, and review the state-of-the-art countermeasures. Finally, we draw open research directions for building future metaverse systems.
description: 32 pages, 17 figures, 11 tables. Accepted by IEEE Communications Surveys & Tutorials, 2022
The thickness dependence of quantum oscillations in ferromagnetic Weyl metal SrRuO$_{3}$
Creators: name: Kar, Uddipta
name: Singh, Akhilesh Kr.
name: Hsu, Yu-Te
name: Lin, Chih-Yu
name: Das, Bipul
name: Cheng, Cheng-Tung
name: Berben, M.
name: Yang, Song
name: Lin, Chun-Yen
name: Hsu, Chia-Hung
name: Wiedmann, S.
name: Lee, Wei-Cheng
name: Lee, Wei-Li
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Other Condensed Matter (cond-mat.other)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Quantum oscillations in resistivity and magnetization at high magnetic fields are a macroscopic fingerprint of the energy quantization due to the cyclotron motion of quasiparticles. In a thin Weyl semimetal, a unique thickness dependent Weyl-orbit quantum oscillation was proposed to exist, originating from a nonlocal cyclotron orbit via the electron tunneling between the top and bottom Fermi-arc surface states. Here, untwinned and high crystalline Weyl metal SrRuO$_3$ thin films with different thicknesses were grown on miscut SrTiO$_3$ (001) substrates. Magneto-transport measurements were carried out in magnetic fields up to 35 T, and quantum oscillations with different frequencies were observed and compared to the calculated band structure. In particular, we discovered a frequency $F \approx$ 30 T at low temperatures and above 3 T that corresponds to a small Fermi pocket with a light effective mass. Its oscillation amplitude appears to be at maximum for film thicknesses in a range of 10 to 20 nm, and the phase of the oscillation exhibits a systematic change with the film thickness. After isolating the well separated frequencies, the constructed Landau fan diagram shows an unusual concave downward curvature in the 1/$μ_0H_n$-$n$ curve, where $n$ is the Landau level index. Based on the rigorous analysis of the thickness and field-orientation dependence of the quantum oscillations, the oscillation with $F \approx$ 30 T is attributed to be of surface origin, which is related to the Fermi-arc surface state originating from non-overlapping Weyl nodes projected on the film's surface plane. Those findings can be understood within the framework of the Weyl-orbit quantum oscillation effect with non-adiabatic corrections.
description: 27 pages, 6 figures
Accidental crossings of eigenvalues in one-dimensional complex PT-symmetric Scarf-II potential
Creators: name: Ahmed, Zafar
name: Ghosh, Dona
name: Nathan, Joseph Amal
name: Parkar, Gaurang
Publisher: name: arXiv
Year: 2015
Subjects: subject: Quantum Physics (quant-ph)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: So far, the well known two branches of real discrete spectrum of complex PT-symmetric Scarf II potential are kept isolated. Here, we suggest that these two need to be brought together as doublets: $E^n_{\pm}(λ)$ with $n=0,1,2...$. Then if strength $(λ)$ of the imaginary part of the potential is varied smoothly some pairs of real eigenvalue curves can intersect and cross each other at $λ=λ_{*}$; this is unlike one dimensional Hermitian potentials. However, we show that the corresponding eigenstates at $λ=λ_{*}$ are identical or linearly dependent denying degeneracy in one dimension, once again. Other pairs of eigenvalue curves coalesce to complex-conjugate pairs completing the scenario of spontaneous breaking of PT-symmetry at $λ=λ_{c}$. To re-emphasize, sharply at $λ=λ_{*}$ and $λ_{c}$, two real eigenvalues coincide, nevertheless their corresponding eigenfunctions become identical or linearly dependent and the Hamiltonian looses diagonalizability.
description: 16 pages, 4 figures and two Tables
ОСОБЕННОСТИ РЕГУЛИРОВАНИЯ ТОРГОВОГО ПОСРЕДНИЧЕСТВА НА РЫНКЕ ЦЕННЫХ БУМАГ
Creators: name: НИКОНЕНКО В.А.
Publisher: name: Экономика и бизнес: теория и практика
Year: 2020
Subjects: РЫНОК ЦЕННЫХ БУМАГ
РЕГУЛИРОВАНИЯ РЫНКА ЦЕННЫХ БУМАГ
БРОКЕРЫ
ДИЛЕРЫ
ДОВЕРИТЕЛЬНЫЕ УПРАВЛЯЮЩИЕ
SECURITIES MARKET
SECURITIES MARKET REGULATION
BROKERS
DEALERS
TRUST MANAGERS

description: В данной статье проанализированы наиболее значимые особенности регулирования торговых посредников на рынке ценных бумаг. Выделены ключевые особенности, позволяющие дифференцировать финансовых и торговых посредников. Рассмотрена специфика деятельности брокеров, доверительных управляющих и дилеров на рынке ценных бумаг. Сформулированы обобщённые тенденции регулирования торгового посредничества на рынке ценных бумаг в рамках действующего законодательства.This article analyzes the most significant features of regulation of trade intermediaries in the securities market. The key features that allow differentiating financial and trade intermediaries are highlighted. The specifics of the activities of brokers, trust managers and dealers in the securities market are considered. Generalized tendencies of regulation of trade mediation in the securities market within the framework of the current legislation are formulated.
On Hawkes Processes with Infinite Mean Intensity
Creators: name: Aubrun, Cecilia
name: Benzaquen, Michael
name: Bouchaud, Jean-Philippe
Publisher: name: arXiv
Year: 2021
Subjects: subject: Trading and Market Microstructure (q-fin.TR)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Probability (math.PR)
subject: FOS: Economics and business
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: The stability condition for Hawkes processes and their non-linear extensions usually relies on the condition that the mean intensity is a finite constant. It follows that the total endogeneity ratio needs to be strictly smaller than unity. In the present note we argue that it is possible to have a total endogeneity ratio greater than unity without rendering the process unstable. In particular, we show that, provided the endogeneity ratio of the linear Hawkes component is smaller than unity, Quadratic Hawkes processes are always stationary, although with infinite mean intensity when the total endogenity ratio exceeds one. This results from a subtle compensation between the inhibiting realisations (mean-reversion) and their exciting counterparts (trends).
description: 5 pages, 3 figures
Balancing Consumer and Business Value of Recommender Systems: A Simulation-based Analysis
Creators: name: Ghanem, Nada
name: Leitner, Stephan
name: Jannach, Dietmar
Publisher: name: arXiv
Year: 2022
Subjects: subject: Social and Information Networks (cs.SI)
subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences
subject: 90B50, 68U35, 90-04, 37M05

description: Automated recommendations can nowadays be found on many e-commerce platforms, and such recommendations can create substantial value for consumers and providers. Often, however, not all recommendable items have the same profit margin, and providers might thus be tempted to promote items that maximize their profit. In the short run, consumers might accept non-optimal recommendations, but they may lose their trust in the long run. Ultimately, this leads to the problem of designing balanced recommendation strategies, which consider both consumer and provider value and lead to sustained business success. This work proposes a simulation framework based on agent-based modeling designed to help providers explore longitudinal dynamics of different recommendation strategies. In our model, consumer agents receive recommendations from providers, and the perceived quality of the recommendations influences the consumers' trust over time. We design several recommendation strategies which either give more weight on provider profit or on consumer utility. Our simulations show that a hybrid strategy that puts more weight on consumer utility but without ignoring profitability considerations leads to the highest cumulative profit in the long run. This hybrid strategy results in a profit increase of about 20 % compared to pure consumer or profit oriented strategies. We also find that social media can reinforce the observed phenomena. In case when consumers heavily rely on social media, the cumulative profit of the best strategy further increases. To ensure reproducibility and foster future research, we publicly share our flexible simulation framework.
description: 36 pages, 9 figures
ПАЕВЫЕ ИНВЕСТИЦИОННЫЕ ФОНДЫ КАК ИНСТИТУТ КОЛЛЕКТИВНОГО ИНВЕСТИРОВАНИЯ
Creators: name: НИКОНЕНКО В.А.
Publisher: name: Экономика и бизнес: теория и практика
Year: 2020
Subjects: ПАЕВЫЕ ИНВЕСТИЦИОННЫЕ ФОНДЫ
ПИФЫ
ЗАКРЫТЫЕ ПАЕВЫЕ ИНВЕСТИЦИОННЫЕ ФОНДЫ
ОТКРЫТЫЕ ПАЕВЫЕ ИНВЕСТИЦИОННЫЕ ФОНДЫ
ИНТЕРВАЛЬНЫЕ ПАЕВЫЕ ИНВЕСТИЦИОННЫЕ ФОНДЫ
MUTUAL FUNDS
MF
CLOSED-END MUTUAL FUNDS
OPEN-END MUTUAL FUNDS
INTERVAL MUTUAL FUNDS

description: Данная статья посвящена анализу паевых инвестиционных фондов как институтов коллективного инвестирования. Проанализированы исторические и практические аспекты становления паевых инвестиционных фондов как институтов коллективного инвестирования. Выделены ключевые особенности паевых инвестиционных фондов, определяющих их значимость в современных экономических условиях. Рассмотрены различные типы инвестиционных фондов и динамика их количества на отечественном финансовом рынке.This article is devoted to the analysis of mutual investment funds as collective investment institutions. Historical and practical aspects of the formation of mutual investment funds as collective investment institutions are analyzed. The key features of mutual investment funds that determine their significance in modern economic conditions are highlighted. Various types of investment funds and the dynamics of their number in the domestic financial market are considered.
Violation of bound on chaos for charged probe in Kerr-Newman-AdS black hole
Creators: name: Gwak, Bogeun
name: Kan, Naoto
name: Lee, Bum-Hoon
name: Lee, Hocheol
Publisher: name: arXiv
Year: 2022
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We investigate the conjectured bound on the Lyapunov exponent for a charged particle with angular motion in the Kerr-Newman-AdS black hole. The Lyapunov exponent is calculated based on the effective Lagrangian. We show that the negative cosmological constant reduces the chaotic behavior of the particle, namely, it decreases the Lyapunov exponent. Hence, the bound is more effective in the AdS spacetime than in the flat spacetime. Nevertheless, we find that the bound can be violated when the angular momenta of the black hole are turned on. Moreover, we show that in an extremal black hole, the bound is more easily violated compared to the nonextremal black hole.
description: 22 pages, 42 figures
Electrical manipulation of a hole `spin'-orbit qubit in nanowire quantum dot: the nontrivial magnetic field effects
Creators: name: Li, Rui
name: Zhang, Hang
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Strong `spin'-orbit coupled one-dimensional hole gas is achievable in a Ge nanowire in the presence of a strong magnetic field. The strong magnetic field lifts the two-fold degeneracy in the hole subband dispersions, so that the effective low-energy subband dispersion exhibits strong `spin'-orbit coupling. Here, we study the electrical `spin' manipulation in a Ge nanowire quantum dot for both the lowest and second lowest hole subband dispersions. Using a finite square well to model the quantum dot confining potential, we calculate exactly the level splitting of the `spin'-orbit qubit and the Rabi frequency in the electric-dipole `spin' resonance. The `spin'-orbit coupling modulated longitudinal $g$-factor $g_{\rm so}$ is not only non-vanishing but also magnetic field dependent. Moreover, the `spin'-orbit couplings of the lowest and second lowest subband dispersions have opposite magnetic dependences, so that the results for these two subband dispersions are totally different.
description: 8 pages, 7 figures
ПОВЫШЕНИЕ ЭФФЕКТИВНОСТИ ПРЯМОГО УЧАСТИЯ ГОСУДАРСТВА В ИНВЕСТИЦИОННОЙ ДЕЯТЕЛЬНОСТИ
Creators: name: ОЛЕЙНИК Г.В.
Publisher: name: Экономика и бизнес: теория и практика
Year: 2020
Subjects: ГОСУДАРСТВЕННЫЕ ИНВЕСТИЦИИ
ФЕДЕРАЛЬНАЯ АДРЕСНАЯ ИНВЕСТИЦИОННАЯ ПРОГРАММА
ЭКОНОМИЧЕСКИЙ РОСТ
ГОСУДАРСТВЕННО-ЧАСТНОЕ ПАРТНЕРСТВО
ЛИЗИНГ
ИНВЕСТИЦИОННЫЙ ПРОЕКТ
PUBLIC INVESTMENTS
FEDERAL TARGETED INVESTMENT PROGRAM
ECONOMIC GROWTH
PUBLIC-PRIVATE PARTNERSHIP
LEASING
INVESTMENT PROJECT

description: Задача обеспечения устойчивого экономического развития России требует дополнительных государственных инвестиций для обновления существующих и создания новых основных фондов и объектов инфраструктуры. Необходимы и дополнительные усилия по формированию благоприятных экономических условий и финансовых стимулов для привлечения частных инвестиций в реализацию крупных инвестиционных проектов. Статья посвящена современной практике прямого участия государства в инвестиционной деятельности, включая проблемы и тенденции предоставления бюджетных инвестиций. Сделан вывод о необходимости уточнения подхода к определению эффективности бюджетных инвестиций. На основе выявленных проблем сформулированы рекомендации по повышению эффективности прямого участия государства в инвестиционной деятельности.The task of ensuring Russia's sustainable economic development requires additional public investment to update existing assets and create new fixed assets and infrastructure facilities. Additional efforts are also needed to create favorable economic conditions and financial incentives to attract private investment in the realization of major investment projects. The article is devoted to the modern practice of direct participation of the state in investment activities, including problems and trends in the provision of budget investments. It is concluded that there is a need to correct the approach to determining the effectiveness of budget investments. Based on the identified problems, recommendations are formulated to improve the effectiveness of direct state participation in investment activities.
(503165) Constance Mary Camps
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
A Bayesian model selection approach to mediation analysis
Creators: name: Keele, Gregory R.
name: Crouse, Wesley L.
name: Valdar, William
name: Gastonguay, Madeleine S.
name: Churchill, Gary A.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2022

description: Genetic studies often seek to establish a causal chain of events originating from genetic variation through to molecular and clinical phenotypes. When multiple phenotypes share a common genetic association, one phenotype may act as an intermediate for the genetic effects on the other. Alternatively, the phenotypes may be causally unrelated but share genetic loci. Mediation analysis represents a class of causal inference approaches used to determine which of these scenarios is most plausible. We have developed a general approach to mediation analysis based on Bayesian model selection and have implemented it in an R package, bmediatR. Bayesian model selection provides a flexible framework that can be tailored to different analyses. Our approach can incorporate prior information about the likelihood of models and the strength of causal effects. It can also accommodate multiple genetic variants or multi-state haplotypes. Our approach reports posterior probabilities that can be useful in interpreting uncertainty among competing models. We compared bmediatR with other popular methods, including the Sobel test, Mendelian randomization, and Bayesian network analysis using simulated data. We found that bmediatR performed as well or better than these alternatives in most scenarios. We applied bmediatR to proteome data from Diversity Outbred (DO) mice, a multi-parent population, and demonstrate the power of mediation with multi-state haplotypes. We also applied bmediatR to data from human cell lines to identify transcripts that are mediated through or are expressed independently from local chromatin accessibility. We demonstrate that Bayesian model selection provides a powerful and versatile approach to identify causal relationships in genetic studies using model organism or human data.
Effect of non-pharmaceutical interventions in the early phase of the COVID-19 epidemic in Saudi Arabia
Creators: name: Saharty, Sameh El
name: Herbst, Christopher H.
name: Lessler, Justin
name: Alqunaibet, Ada Mohammed
name: Zhang, Yi
name: Alsukait, Reem F.
name: Dong, Di
name: Almudarra, Sami Saeed
name: Lee, Elizabeth C.
name: Wada, Nikolas I.
name: Perez-Saez, Javier
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2022

description: Non-pharmaceutical interventions have been widely employed to control the COVID-19 pandemic. Their associated effect on SARS-CoV-2 transmission have however been unequally studied across regions. Few studies have focused on the Gulf states despite their potential role for global pandemic spread, in particular in the Kingdom of Saudi Arabia through religious pilgrimages. We study the association between NPIs and SARS-CoV-2 transmission in the Kingdom of Saudi Arabia during the first pandemic wave between March and October 2020. We infer associations between NPIs introduction and lifting through a spatial SEIR-type model that allows for inferences of region-specific changes in transmission intensity. We find that reductions in transmission were associated with NPIs implemented shortly after the first reported case including Isolate and Test with School Closure (region-level mean estimates of the reduction in R0 ranged from 25–41%), Curfew (20–70% reduction), and Lockdown (50–60% reduction), although uncertainty in the estimates was high, particularly for the Isolate and Test with School Closure NPI (95% Credible Intervals from 1% to 73% across regions). Transmission was found to increase progressively in most regions during the last part of NPI relaxation phases. These results can help informing the policy makers in the planning of NPI scenarios as the pandemic evolves with the emergence of SARS-CoV-2 variants and the availability of vaccination.
Convex Denoising using Non-Convex Tight Frame Regularization
Creators: name: Parekh, Ankit
name: Selesnick, Ivan W.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Optimization and Control (math.OC)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics

description: This paper considers the problem of signal denoising using a sparse tight-frame analysis prior. The L1 norm has been extensively used as a regularizer to promote sparsity; however, it tends to under-estimate non-zero values of the underlying signal. To more accurately estimate non-zero values, we propose the use of a non-convex regularizer, chosen so as to ensure convexity of the objective function. The convexity of the objective function is ensured by constraining the parameter of the non-convex penalty. We use ADMM to obtain a solution and show how to guarantee that ADMM converges to the global optimum of the objective function. We illustrate the proposed method for 1D and 2D signal denoising.
description: 5 pages, 6 figures
Infrared Finite Scattering Theory in Quantum Field Theory and Quantum Gravity
Creators: name: Prabhu, Kartik
name: Satishchandran, Gautam
name: Wald, Robert M.
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: Infrared (IR) divergences arise in scattering theory with massless fields and are manifestations of the memory effect. There is nothing singular about states with memory, but they do not lie in the standard Fock space. IR divergences are artifacts of trying to represent states with memory in the standard Fock space. For collider physics, one can impose an IR cutoff and calculate inclusive quantities. But, this approach cannot treat memory as a quantum observable and is highly unsatisfactory if one views the S-matrix as fundamental in QFT and quantum gravity, since the S-matrix is undefined. For a well-defined S-matrix, it is necessary to define in/out Hilbert spaces with memory. Such a construction was given by Faddeev and Kulish (FK) for QED. Their construction "dresses" momentum states of the charged particles by pairing them with memory states of the electromagnetic field to produce states of vanishing large gauge charges at spatial infinity. However, in massless QED, due to collinear divergences, the "dressing" has an infinite energy flux so these states are unphysical. In Yang-Mills theory the "soft particles" used for dressing also contribute to the current flux, invalidating the FK procedure. In quantum gravity, the analogous FK construction would attempt to produce a Hilbert space of eigenstates of supertranslation charges at spatial infinity. However, we prove that there are no eigenstates of supertranslation charges except the vacuum. Thus, the FK construction fails in quantum gravity. We investigate some alternatives to FK constructions but find that these also do not work. We believe that to treat scattering at a fundamental level in quantum gravity - as well as in massless QED and YM theory - it is necessary to take an algebraic viewpoint rather than shoehorn the in/out states into some fixed Hilbert space. We outline the framework of such an IR finite scattering theory.
description: v3: minor edits and updated references, as appears in PRD v2: updated references v1: 82 pages + references, 1 figure (shortened abstract; full abstract in paper)
СТРАТЕГИЧЕСКОЕ УПРАВЛЕНИЕ ПЕРСОНАЛОМ В РОССИИ: ПРОБЛЕМЫ И ПУТИ СОВЕРШЕНСТВОВАНИЯ
Creators: name: ОСКОЛКОВА О.И.
Publisher: name: Экономика и бизнес: теория и практика
Year: 2020
Subjects: СТРАТЕГИЧЕСКОЕ УПРАВЛЕНИЕ
ПЕРСОНАЛ
ЧЕЛОВЕЧЕСКИЙ РЕСУРС
МОТИВАЦИЯ
ЛИДЕР
STRATEGIC MANAGEMENT
PERSONNEL
HUMAN RESOURCE
MOTIVATION
LEADER

description: В настоящее время в России многие предприятия переходят на стратегическое управление персоналом в связи с необходимостью поддержания конкурентоспособности на рынке. Однако существуют различные проблемы экономического, политического, социального, культурного характера, которые усложняют переход предприятий к данному виду управления. В статье рассмотрены предпосылки, основные проблемы и пути совершенствования перехода отечественных предприятий на стратегическое управление персоналом.Currently, many enterprises in Russia are switching to strategic personnel management due to the need to maintain competitiveness in the market. However, there are various problems of an economic, political, social, and cultural nature that complicate the transition of enterprises to this type of management. The article discusses the prerequisites, main problems and ways to improve the transition of Russian enterprises to strategic personnel management.
(503166) Walter Camps
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
УПРАВЛЕНИЕ РИСКАМИ ФИНАНСОВОЙ БЕЗОПАСНОСТИ КРЕДИТНЫХ ОРГАНИЗАЦИЙ
Creators: name: ПАНТЮНИН В.К.
Publisher: name: Экономика и бизнес: теория и практика
Year: 2020
Subjects: СИСТЕМА КРЕДИТНЫХ ОРГАНИЗАЦИЙ
РИСКИ ФИНАНСОВОЙ БЕЗОПАСНОСТИ КРЕДИТНЫХ ОРГАНИЗАЦИЙ
РЫНОЧНЫЙ РИСК
КРЕДИТНЫЙ РИСК
ПРОЦЕНТНЫЙ РИСК
THE SYSTEM OF CREDIT ORGANIZATIONS
FINANCIAL SECURITY RISKS OF CREDIT ORGANIZATIONS
THE MARKET RISK
THE CREDIT RISK
THE INTEREST RATE RISK

description: Современная система кредитных организаций является одной из наиболее значимых сфер в экономике любого государства, так как она регулирует и стабилизирует общую денежную массу, а также выступает в качестве первичного субъекта противодействия операциям по легализации доходов, полученных преступным путем. В настоящее время вопросы обеспечения финансовой безопасности кредитных организаций приобретают особое значение, так как возрастает количество и сила рисков, негативно воздействующих на их деятельность. В статье рассмотрены наиболее опасные риски финансовой безопасности кредитных организаций: рыночный риск, кредитный риск, процентный риск, а также описаны методы управления этими рисками.The modern system of credit organizations is one of the most important areas in the economy of any state, since it regulates and stabilizes the total money supply, and also acts as the primary subject of countering operations to legalize income obtained by criminal means. Currently, the issues of ensuring the financial security of credit organizations are of particular importance, as the number and strength of risks that negatively affect their activities increases. The article discusses the most dangerous risks of financial security of credit organizations: the market risk, the credit risk, the interest rate risk, and describes methods for managing these risks.
Strongly interacting trapped one-dimensional quantum gases: an exact solution
Creators: name: Minguzzi, Anna
name: Vignolo, Patrizia
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Quantum correlations can be used as a resource for quantum computing, eg for quantum state manipulation, and for quantum sensing, eg for creating non-classical states which allow to achieve the quantum advantage regime. This review collects the predictions coming from a family of exact solutions which allows to describe the many-body wavefunction of strongly correlated quantum fluids confined by a tight waveguide and subjected to any form of longitudinal confinement. It directly describes the experiments with trapped ultracold atoms where the strongly correlated regime in one dimension has been achieved. The exact solution applies to bosons, fermions and mixtures. It allows to obtain experimental observables such as the density profiles and momentum distribution at all momentum scales, beyond the Luttinger liquid approach. It also predicts the exact quantum dynamics at all the times, including the small oscillations regime yielding the collective modes of the system and the large quench regime where the system parameters are changed considerably. The solution can be extended to describe finite-temperature conditions, spin and magnetization effects. The review illustrates the idea of the solution, presents the key theoretical achievements and the main experiments on strongly correlated one-dimensional quantum gases.
description: 22 pages, 19 figures
Visible line intensities of the triatomic hydrogen ion from experiment and theory
Creators: name: Petrignani, Annemieke
name: Berg, Max H.
name: Grussie, Florian
name: Wolf, Andreas
name: Mizus, Irina I.
name: Polyansky, Oleg L.
name: Tennyson, Jonathan
name: Zobov, Nikolai F.
name: Pavanello, Michele
name: Adamowicz, Ludwik
Publisher: name: arXiv
Year: 2015
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: The visible spectrum of H3+ is studied using high-sensitivity action spectroscopy in a cryogenic radiofrequency multipole trap. Advances are made to measure the weak ro-vibrational transitions from the lowest rotational states of H3+ up to high excitation energies providing visible line intensities and, after normalisation to an infrared calibration line, the corresponding Einstein $B$ coefficients. {\it Ab initio} predictions for the Einstein $B$ coefficients are obtained from a highly precise dipole moment surface of H3+ and found to be in excellent agreement, even in the region where states have been classified as chaotic.
description: 4 pages, 1 figure
Multiwavelength search for the origin of IceCube's neutrinos
Creators: name: Kun, Emma
name: Bartos, Imre
name: Tjus, Julia Becker
name: Biermann, Peter L.
name: Franckowiak, Anna
name: Halzen, Francis
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: The origin of astrophysical high-energy neutrinos detected by the IceCube Neutrino Observatory remains a mystery to be solved. In this paper we search for neutrino source candidates within the $90$% containment area of $70$ track-type neutrino events recorded by the IceCube Neutrino Observatory. By employing the Fermi-LAT 4FGL-DR2, the Swift-XRT 2SXPS and the CRATES catalogs, we identify possible gamma, X-ray and flat-spectrum radio candidate sources of track-type neutrinos. We find that based on the brightness of sources and their spatial correlation with the track-type IceCube neutrinos, the constructed neutrino samples represent special populations of sources taken from the full Fermi-LAT 4FGL-DR2/Swift-XRT 2SXPS/CRATES catalogs with similar significance ($2.1σ$, $1.2σ$, $2σ$ at $4.8~\mathrm{GHz}$, $2.1σ$ at $8.4~\mathrm{GHz}$, respectively, assuming 50% astrophysical signalness). After collecting redshifts and deriving sub-samples of the CRATES catalog complete in the redshift--luminosity plane, we find that the 4.8 GHz ($8.4$~GHz) sub-sample can explain between 4% and 53% ($3$% and $42$%) of the neutrinos (90% C.L.), when the probability to detect a neutrino is proportional to the ($k$-corrected) radio flux. The overfluctuations indicate that a part of the sample is likely to contribute and that more sophisticated schemes in the source catalog selection are necessary to identify the neutrino sources at the $5σ$ level. Our selection serves as a starting point to further select the correct sources.
description: 17 pages, 8 figures, 4 tables. Accepted to ApJ
Ground states of large bosonic systems: The gross-pitaevskii limit revisited
Creators: name: Nam, Phan Thành
name: Rougerie, Nicolas
name: Seiringer, Robert
Publisher: name: arXiv
Year: 2015
Subjects: subject: Mathematical Physics (math-ph)
subject: Quantum Gases (cond-mat.quant-gas)
subject: Analysis of PDEs (math.AP)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We study the ground state of a dilute Bose gas in a scaling limit where the Gross-Pitaevskii functional emerges. This is a repulsive non-linear Schrödinger functional whose quartic term is proportional to the scattering length of the interparticle interaction potential. We propose a new derivation of this limit problem, with a method that bypasses some of the technical difficulties that previous derivations had to face. The new method is based on a combination of Dyson's lemma, the quantum de Finetti theorem and a second moment estimate for ground states of the effective Dyson Hamiltonian. It applies equally well to the case where magnetic fields or rotation are present.
СИСТЕМА УПРАВЛЕНИЯ РИСКАМИ. МЕТОДИКА ОЦЕНКИ БИЗНЕС-РИСКА ПО КРЕДИТНОМУ РЕЙТИНГУ
Creators: name: ПАШАЕВ М.М.
Publisher: name: Экономика и бизнес: теория и практика
Year: 2020
Subjects: БИЗНЕС-РИСК
СИСТЕМА УПРАВЛЕНИЯ БИЗНЕС-РИСКАМИ
МЕТОДИЧЕСКИЕ ОСНОВЫ ОЦЕНКИ
ЭКОНОМИЧЕСКАЯ УСТОЙЧИВОСТЬ
КРЕДИТНЫЙ РЕЙТИНГ
BUSINESS RISK
BUSINESS RISK MANAGEMENT SYSTEM
METHODOLOGICAL BASES OF ASSESSMENT
ECONOMIC STABILITY
CREDIT RATING

description: В данной работе рассмотрены теоретические и методические основы анализа бизнес-рисков, предложена оценка рисков по экспертному методу. В ходе исследования рассмотрена сущность бизнес-рисков, влияние системы управления рисками на результаты деятельности компании, предложен и проанализирован экспертный метод оценки бизнес-риска, создана специальная шкала оценки. Метод оценки бизнес-риска по кредитному рейтингу имеет практическую применимость в виде разработанной системы стимулирования клиентов компании.In this paper, the theoretical and methodological foundations of business risk analysis are considered, and the risk assessment using the expert method is proposed. The study examines the nature of business risks, the impact of the risk management system on the company's performance, offers and analyzes an expert method for assessing business risk, and creates a special assessment scale. The method of assessing business risk based on a credit rating has practical applicability in the form of a developed system for stimulating the company's clients.
A national study of moral distress among U.S. internal medicine physicians during the COVID-19 pandemic
Creators: name: Sonis, Jeffrey
name: Gaynes, Bradley N.
name: Pathman, Donald E.
name: Read, Susan
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2022

description: Background There have been no studies to date of moral distress during the COVID-19 pandemic in national samples of U.S. health workers. The purpose of this study was to determine, in a national sample of internal medicine physicians (internists) in the U.S.: 1) the intensity of moral distress; 2) the predictors of moral distress; 3) the outcomes of moral distress. Methods We conducted a national survey with an online panel of internists, representative of the membership of the American College of Physicians, the largest specialty organization of physicians in the United States, between September 21 and October 8, 2020. Moral distress was measured with the Moral Distress Thermometer, a one-item scale with a range of 0 (“none”) to 10 (“worst possible”). Outcomes were measured with short screening scales. Results The response rate was 37.8% (N = 810). Moral distress intensity was low (mean score = 2.4, 95% CI, 2.2–2.6); however, 13.3% (95% CI, 12.1% - 14.5%) had a moral distress score greater than or equal to 6 (“distressing”). In multiple linear regression models, perceived risk of death if infected with COVID-19 was the strongest predictor of higher moral distress (β (standardized regression coefficient) = 0.26, p < .001), and higher perceived organizational support (respondent belief that their health organization valued them) was most strongly associated with lower moral distress (β = -0.22, p < .001). Controlling for other factors, high levels of moral distress, but not low levels, were strongly associated (adjusted odds ratios 3.0 to 11.5) with screening positive for anxiety, depression, posttraumatic stress disorder, burnout, and intention to leave patient care. Conclusions The intensity of moral distress among U.S. internists was low overall. However, the 13% with high levels of moral distress had very high odds of adverse mental health outcomes. Organizational support may lower moral distress and thereby prevent adverse mental health outcomes.
Floquet-induced localization in long-range many-body systems
Creators: name: Yousefjani, Rozhin
name: Bose, Sougato
name: Bayat, Abolfazl
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The fate of many-body localization in long-range interacting systems is not fully settled. For instance, the phase boundary between ergodic and many-body localized regimes is still under debate. Here, we use Floquet dynamics which can induce many-body localization in a clean long-range interacting system through spatiotemporal disorder, which are realized by regular operation of random local rotations. The phase diagram has been determined for two types of uniform and nonuniform long-range couplings. Our Floquet mechanism shows more localizing power than conventional static disorder methods as it pushes the phase boundary in favor of the localized phase. Moreover, our comprehensive long-time simulations provide strong support for obtained results based on static analysis.
description: 7 Pages, 3 Figures. Comments are welcomed
(503163) George Richard Mullens
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
Quantum Machine Learning Corrects Classical Force Fields: Stretching DNA Base Pairs in Explicit Solvent
Creators: name: Berryman, Joshua T.
name: Taghavi, Amirhossein
name: Mazur, Florian
name: Tkatchenko, Alexandre
Publisher: name: arXiv
Year: 2022
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Biological Physics (physics.bio-ph)
subject: FOS: Physical sciences

description: In order to improve the accuracy of molecular dynamics simulations, classical force fields are supplemented with a kernel-based machine learning method trained on quantum-mechanical fragment energies. As an example application, a potential-energy surface is generalised for a small DNA duplex, taking into account explicit solvation and long-range electron exchange--correlation effects. Study of the corrected potential energy versus extension shows that leading classical DNA models have excessive stiffness with respect to stretching. This discrepancy is found to be common across multiple forcefields. The quantum correction is in qualitative agreement to the experimental thermodynamics for larger DNA double helices, providing a candidate explanation for the general and long-standing discrepancy between single molecule stretching experiments and classical calculations of DNA stretching. The new dataset of quantum calculations and the associated Kernel Modified Molecular Dynamics (KMMD) method should be of general utility in biomolecular simulations. KMMD is made available as part of the AMBER22 simulation software.
description: Publisher postprint (with minor corrections) is open access at J Chem Phys https://doi.org/10.1063/5.0094727