cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
КОНЦЕПЦИИ К ПРАКТИЧЕСКОЙ РЕАЛИЗАЦИИ ЕДИНОЙ ЦИФРОВОЙ ПЛАТФОРМЫ АГРОПРОМЫШЛЕННОГО КОМПЛЕКСА
Creators: name: Меденников Виктор Иванович
Publisher: name: Международный сельскохозяйственный журнал
Year: 2020
Subjects: цифровая платформа
сельское хозяйство
математическое моделирование
логистика
точное земледелие

description: В статье дается теоретическое осмысление предшествующего опыта информатизации АПК России, связанного с достигнутыми мировыми результатами цифровизации сельского хозяйства, в целях поиска новых эффективных подходов к начавшейся цифровизации отрасли в России. Показано, что в России концептуальные вопросы проектирования единой цифровой платформы АПК были проработаны в результате расчетов на основе математической модели формирования оптимальной цифровой платформы в АПК еще в рамках задания «Электронизация сельского хозяйства» Комплексной программы НТП стран-членов СЭВ. Модель позволила выделить ряд облачных цифровых подплатформ, общих для большинства сельскохозяйственных организаций: сервис сбора и хранения пооперационной первичной учетной информации в единой базе данных; сервис единой базы данных технологического учета; сервис приложений, представляющий из себя программную реализацию функциональных управленческих задач с единым описанием алгоритмов. Теоретическим обоснованием такого концептуального подхода явились идеи Общегосударственной автоматизированной системы сбора и обработки информации для учета, планирования и управления народным хозяйством в СССР, предложенной выдающимися российскими учеными А.И. Китовым и В.М. Глушковым. В статье показано, что мировые тенденции цифровизации сельского хозяйства смещаются в сторону данных идей. В работе дан анализ проблем эффективности внедрения цифровых технологий в АПК России, к основным из которых можно отнести: отсутствие ясной стратегии в этой сфере со стороны Минсельхоза России; доминирование «позадачного» метода разработки и внедрения систем цифровизации. Для демонстрации возможности формирования облачных сервисов на основе модели формирования цифровой платформы АПК представлены схемы: перспективной цифровой подплатформы точного земледелия и единого интернет-пространства цифрового взаимодействия логистической деятельности сельскохозяйственного производства, переработки и сбыта продукции.
КОНКУРЕНТНЫЕ СТРАТЕГИИ ПРОИЗВОДИТЕЛЕН МЯСНОЙ ПРОДУКЦИИ НА РЫНКЕ НОВОСИБИРСКОЙ ОБЛАСТИ
Creators: name: Волосский Альберт Анатольевич
name: Афанасьева Татьяна Алексеевна
name: Слобожанин Дмитрий Михайлович
Publisher: name: Международный сельскохозяйственный журнал
Year: 2020
Subjects: конкурентные стратегии
мясная отрасль
производители мясной продукции
внешние конкурентные преимущества
дифференциация спроса
стратегические инструменты управления конкурентоспособностью мясной отрасли региона
вертикальная интеграция
доля рынка

description: Рассмотрены конкурентные стратегии производителей мясной продукции, действующих на рынке Новосибирской области, при этом выделены крупнейшие и крупные участники рынка. Сделан вывод, что крупнейшие производители придерживаются только стратегии вертикальной интеграции, хотя бизнес одних производителей данной категории начинался с производства сырья, другие же первоначально ориентировались на его переработку, но в любом случае сегодня контролируют всю технологическую цепочку. Показано, что, несмотря на реализацию стратегии вертикальной интеграции, крупнейшие производители мясной продукции по-прежнему стремятся управлять эффективностью за счет развития уровня производства, с которого начиналось выстраивание вертикально интегрированного бизнеса. Предпочтительным источником конкурентных преимуществ для крупнейших производителей выступают внешние преимущества, поскольку спрос на рынке мясной продукции Новосибирской области дифференцирован, но эти участники рынка эффективно контролируют затраты. Выделены и другие конкурентные стратегии, которых придерживаются как крупные, так и небольшие по размерам производители мясной продукции, но среди этих стратегий эффективны только производственная стратегия и стратегия производственной интеграции. Другие стратегии не позволяют предприятиям эффективно приспосабливаться к условиям рынка и воздействиям внешней среды в целом, поскольку при отсутствии развитой производственной базы многие факторы, в том числе эффект замещения импорта, использованы быть не могут. Сделан вывод, что далеко не все производители мясной продукции в Новосибирской области придерживаются определенной конкурентной стратегии. Показано, что использование инструментов стратегического управления конкурентоспособностью мясной отрасли могло бы быть более эффективным при условии разработки этих инструментов в соответствии с предпочтительными для регионально рынка мясной продукции конкурентными стратегиями.
ОЦЕНКА СТРУКТУРНЫХ ИЗМЕНЕНИЙ АГРОПРОДОВОЛЬСТВЕННОГО ЭКСПОРТА РОССИИ
Creators: name: Воронов Антон Сергеевич
name: Иваненко Ирина Серафимовна
name: Яковенко Наталия Анатольевна
Publisher: name: Международный сельскохозяйственный журнал
Year: 2020
Subjects: агропродовольственный комплекс
продуктовая структура
связанная диверсификация
конкурентоспособность
экспорт
структурные сдвиги.

description: Диверсификация экспорта сельскохозяйственной продукции и продовольствия тесно связана с проблемами повышения международной конкурентоспособности российского агропродовольственного комплекса в условиях усиления внешних вызовов и ограничений. Диверсификация как многоуровневый процесс предполагает трансформацию внешнеторговой специализации страны на мировом рынке на основе формирования устойчивых конкурентных преимуществ. Перспективным направлением стратегии диверсификации экспорта может стать диверсификация внутри продуктовых групп с точки зрения расширения ассортимента экспортируемой продукции. Целью исследования является оценка связанной диверсификации экспорта по основным конкурентоспособным товарным группам агропродовольственного комплекса России, выявление тенденций развития российского экспорта сельскохозяйственной продукции и продовольствия, обоснование перспективных направлений диверсификации агропродовольственного экспорта. Анализ процессов диверсификации экспорта в группах конкурентоспособных товаров агропродовольственного комплекса России позволил выявить общие и частные тенденции и интенсивность диверсификации по различным продуктовым группам. С 2001 по 2019 гг. отмечается усиление специализации экспорта в группе зерновых культур. За исследуемый период доля пшеницы и меслина выросла с 53,01 до 80,78%. Выявлены медленные темпы диверсификации в группе рыбной продукции и ракообразных. Экспорт мяса и мясопродуктов и масличных культур характеризуется более активными процессами расширения ассортимента экспортируемой продукции. Выявлено затухание процессов диверсификации в экспорте продукции мукомольно-крупяной промышленности. Значение различий структур по критерию Рябцева в период с 2010 по 2014 гг. составило 0,333 (существенные структурные сдвиги); в период с 2015 по 2019 гг. — 0,086 (низкий уровень различий структур). Реализация стратегии диверсификации экспорта внутри продуктовых групп предполагает расширение ассортимента экспорта на основе устойчивых конкурентных позиций, что позволит снизить расходы товаропроизводителей для выхода на новые сегменты мирового продовольственного рынка в условиях инвестиционных и инновационных ограничений.
title: Text/Conference Paper
Creators: name: Khosrawi-Rad, Bijan
name: Rinn, Heidi
name: Augenstein, Dominik
name: Markgraf, Daniel
name: Robra-Bissantz, Susanne
Publisher: name: Gesellschaft für Informatik e.V.
Year: 2023
Subjects: subject: Pedagogical Conversational Agent
subject: Virtual World
subject: Education
subject: Design Principle

description: Pedagogical conversational agents (PCAs) are intelligent dialog systems that can support students as chatbots or voice assistants. However, many users find interactions with PCAs less engaging. One solution to increase learners’ engagement is to embed the PCA in a virtual world, e.g., as a humanoid avatar that facilitates collaborative learning. Such a learning setting could be beneficial because virtual worlds positively affect fun and immersion. In this paper, we derive prescriptive design knowledge for PCAs in virtual worlds based on the results of nine expert interviews synthesized with findings from the literature. This design knowledge aims to enable the meaningful design of PCAs in virtual worlds. We contribute to research and practice by demonstrating how PCAs in virtual worlds can be designed to increase students' motivation to learn.
Консолидирование сельскохозяйственных земель Азербайджана как способ улучшения положения сельской местности
Creators: name: Низамзаде Теймур Низам Оглы
Publisher: name: Международный сельскохозяйственный журнал
Year: 2020
Subjects: консолидация земель
площадь ферм
сельские местности
земельные участки
раздробленность земель

description: В Азербайджане неравенство социально-экономических условий проживания между сельскими и городскими жителями страны с каждым годом возрастает. Причин происходящему, конечно, немало, и поэтому деятельность, нацеленная на повышение качества жизни в сельской местности, должна предусматривать улучшение сельскохозяйственного производства, возможностей трудоустройства, инфраструктуры, состояния окружающей среды и жилищных условий. Успех реализации комплексных проектов сельского развития будет в большой степени зависеть от того, как в их рамках будут решаться вопросы организации существующего сейчас огромного числа небольших, разрозненных ферм страны, которые, на наш взгляд, сильно нуждаются в консолидировании. Статья охватывает различные аспекты улучшения доступа к земле и к другим природным ресурсам и укрепления гарантий владения. В статье также рассматривается роль землевладения в процессе развития сельских районов Азербайджана, улучшения доступа к земле через посредство заключения договоров об аренде, системах налогообложения недвижимости в сельских районах и укрупнении земельных участков. Высокая динамика развития технологий и экономической интеграции требует от лиц, определяющих политику, проектировщиков, экспертов в области развития и аграрных производителей пересмотра организационных структур, используемых для регулирования следующих аспектов: кто располагает правами, на какие природные ресурсы, с какой целью, на какие сроки и на каких условиях. Целью настоящей статьи является вынесение рекомендаций относительно того, как в сельской местности следовало бы поступить для инициирования экспериментального проекта консолидации земель.
Comment on "New Limits on Intrinsic Charm in the Nucleon from Global Analysis of Parton Distributions"
Creators: name: Brodsky, S. J.
name: Gardner, S.
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: A Comment on the Letter by P. Jimenez-Delgado, T.J. Hobbs, J.T. Londergan, and W. Melnitchouk, Phys. Rev. Lett. 114, 082002 (2015).
description: 2 pages, submitted to PRL, clarifications added
Ultrafast time resolved photo-electric emission
Creators: name: Juffmann, Thomas
name: Klopfer, Brannon B.
name: Skulason, Gunnar E.
name: Kealhofer, Catherine
name: Xiao, Fan
name: Foreman, Seth M.
name: Kasevich, Mark A.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Accelerator Physics (physics.acc-ph)
subject: Optics (physics.optics)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The emission times of laser-triggered electrons from a sharp tungsten tip are directly characterized under ultrafast, near-infrared laser excitation at Keldysh parameters $6.6< γ< 19.1$. Emission delays up to 10 fs are observed, which are inferred from the energy gain of photoelectrons emitted into a synchronously driven microwave cavity. ~ fs timing resolution is achieved in a configuration capable of measuring timing shifts up to 55 ps. The technique can also be used to measure the microwave phase inside the cavity with a precision below 70 fs upon the energy resolved detection of a single electron.
description: 4 pages, 3 figures
Production of Kaon and $Λ$ in nucleus-nucleus collisions at ultra-relativistic energy from a blast wave model
Creators: name: Zhang, Song
name: Ma, Yu-Gang
name: Chen, Jin-Hui
name: Zhong, Chen
Publisher: name: arXiv
Year: 2014
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The particle production of Kaon and $Λ$ are studied in nucleus-nucleus collisions at relativistic energy based on a chemical equilibrium blast-wave model. The transverse momentum spectra of Kaon and $Λ$ at the kinetic freeze-out stage from our model are in good agreement with the experimental results. The kinetic freeze-out parameters of temperature ($T_{kin}$) and radial flow parameter $ρ_{0}$ are presented for the FOPI, RHIC and LHC energies. And the resonance decay effect is also discussed. The systematic study for beam energy dependence of the strangeness particle production will help us to better understand the properties of the matter created in heavy-ion collisions at the kinetic freeze-out stage.
description: in press by Advances in High Energy Physics (A special issue "Comparing Particle Productions at RHIC and LHC Energies")
Supplementary figures S1-S3 from Why are population growth rate estimates of past and present hunter–gatherers so different?
Creators: name: Tallavaara, Miikka
name: Jørgensen, Erlend Kirkeng
Publisher: name: The Royal Society
Year: 2020
Subjects: subject: Ecology
subject: FOS: Biological sciences

description: Hunter–gatherer population growth rate estimates extracted from archaeological proxies and ethnographic data show remarkable differences, as archaeological estimates are orders of magnitude smaller than ethnographic and historical estimates. This could imply that prehistoric hunter–gatherers were demographically different from recent hunter–gatherers. However, we show that the resolution of archaeological human population proxies is not sufficiently high to detect actual population dynamics and growth rates that can be observed in the historical and ethnographic data. We argue that archaeological and ethnographic population growth rates measure different things; therefore, they are not directly comparable. While ethnographic growth rate estimates of hunter–gatherer populations are directly linked to underlying demographic parameters, archaeological estimates track changes in the long-term mean population size, which reflects changes in the environmental productivity that provide the ultimate constraint for forager population growth. We further argue that because of this constraining effect, the hunter–gatherer population cannot grow on a long-term basis independently of increasing environmental productivity.This article is part of the theme issue ‘Cross-disciplinary approaches to prehistoric demography’.
title: Text/Conference Paper
Creators: name: Leikert-Boehm, Ninja
name: Matter, Philipp
name: Heinrich, Peter
Publisher: name: Gesellschaft für Informatik e.V.
Year: 2023
Subjects: subject: Camera use
subject: online teaching
subject: computer-mediated communication
subject: social presence

description: The COVID-19 pandemic has accelerated the transformation towards online and hybrid teaching. While these modalities have been shown to have many beneficial aspects, they can also limit the social presence and collective engagement in learning activities. In this paper, we present exploratory observations on the role of video features in online and hybrid course settings during the pandemic. By analyzing survey data from three university courses in 2021/2022, we identify different explanations for students’ behavior in regulating their social presence by turning their cameras on (or rather off). We suggest that the benefits of cameras are highly contextual and may conflict with students’ specific goals and expectations, as well as their territorial habits, which should be taken into account when designing course content and didactic methods.
An efficient filtered scheme for some first order Hamilton-Jacobi-Bellman equations
Creators: name: Bokanowski, Olivier
name: Falcone, Maurizio
name: Sahu, Smita
Publisher: name: arXiv
Year: 2015
Subjects: subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics

description: We introduce a new class of "filtered" schemes for some first order non-linear Hamilton-Jacobi-Bellman equations. The work follows recent ideas of Froese and Oberman (SIAM J. Numer. Anal., Vol 51, pp.423-444, 2013). The proposed schemes are not monotone but still satisfy some $ε$-monotone property. Convergence results and precise error estimates are given, of the order of $\sqrt{Δx}$ where $Δx$ is the mesh size. The framework allows to construct finite difference discretizations that are easy to implement, high--order in the domains where the solution is smooth, and provably convergent, together with error estimates. Numerical tests on several examples are given to validate the approach, also showing how the filtered technique can be applied to stabilize an otherwise unstable high--order scheme.
description: 20 pages (including references), 26 figures
title: Text/Conference Paper
Creators: name: Leonhardt, Thiemo
name: Lilienthal, Lanea
name: Baberowski, David
name: Bergner, Nadine
Publisher: name: Gesellschaft für Informatik e.V.
Year: 2023
Subjects: subject: Visualization
subject: Presence
subject: VR
subject: Learning

description: While learning applications such as driving simulations aim for the most realistic experience possible, learning in other applications can be hindered by unintentional distractions. Similarly, VR learning applications with a high sense of presence address the learner's attention as well as the emotional component of learning. A high sense of presence can also evoke negative feelings in learners due to the emotional component and thus hinder the learning process. With this tension in mind, this paper analyses two different VR learning applications. The results show no effect of abstract visualization in contrast to realistic, high visualization on user preference and usability between both applications with constant high presence.
A Study of the Aspect and Characteristics of Conflict among the People in the Rural Tourism Villages
Creators: name: Jang, Woowhan
name: Jang, Woowhan
Publisher: name: Unknown
Year: 2011
Subjects: subject: Resource /Energy Economics and Policy
subject: conflict
subject: the aspect of conflict
subject: stages of conflict

description: The purpose of this study is to examine the aspect and characteristics of conflict among the people in the rural tourism villages shown in the course of conducting a joint project and managing a business. This study was undertaken in view of the ground theory, which includes the stage of research design, collection and analysis of information, and assessment in reliability of the study. There were 3 stages of conflict: the source, the expression and the result of this conflict. As the stage of business propulsion and the stage of business operation, the aspect of conflict in the agricultural joint business was different. The result of conflict was not only in the point of negative but also in the point of positive. Additionally, systematic management of conflict among the people in an agricultural joint business should be conducted.
Poster #1 - Erdgeschichte: Aus Staub und Gas geboren
Creators: name: Schreiber, Mona
name: Gould, Sven
Publisher: name: Zenodo
Year: 2023
Subjects: Erdgeschichte, Atmosphäre, Klima, Plattentektonik

description: Die Geschichte unseres Planeten ist von enormen Veränderungen geprägt und über Millionen von Jahren formte sich unsere Erde, wie wir sie heute kennen. Bereits in der Frühzeit unseres Heimatplaneten vor etwa vier Milliarden Jahren entstand das Leben.
description: Posterserie zu forschungsnahen Themen im Bereich der Evolution der Landpflanzen — vom Ursprung des Lebens, über Pflanzendiversität, bis hin zu den Nutzpflanzen. Diese Posterserie ist im Rahmen des Schwerpunktprogramms MAdLand - Molecular Adaptation to Land: plant evolution to change (SPP 2237), gefördert durch die Deutsche Forschungsgemeinschaft, entstanden.
Communication with SIMP dark mesons via Z'-portal
Creators: name: Lee, Hyun Min
name: Seo, Min-Seok
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We consider a consistent extension of the SIMP models with dark mesons by including a dark U(1)_D gauge symmetry. Dark matter density is determined by a thermal freeze-out of the $3\to2$ self-annihilation process, thanks to the Wess-Zumino-Witten term. In the presence of a gauge kinetic mixing between the dark photon and the SM hypercharge gauge boson, dark mesons can undergo a sufficient scattering off the Standard Model particles and keep in kinetic equilibrium until freeze-out in this SIMP scenario. Taking the SU(N_f)xSU(N_f)/SU(N_f) flavor symmetry under the SU(N_c) confining group, we show how much complementary the SIMP constraints on the parameters of the dark photon are for current experimental searches for dark photon.
description: 16 pages, 6 figures, To appear in Phys. Lett. B
title: Text/Conference Paper
Creators: name: Wehrmann, Frank
name: Zender, Raphael
Publisher: name: Gesellschaft für Informatik e.V.
Year: 2023
Subjects: subject: Virtual Reality
subject: Inklusion
subject: Schule

description: Virtual Reality hat großes Potenzial für die inklusive Bildung. Dieser Beitrag verdeutlicht, wie VR-Anwendungen zur Förderung inklusiver Bildung beitragen können. Ein theoretischer Rahmen aus der Inklusionsforschung wird benutzt um eine Analyse inklusiver Prozessmerkmale in VR Lehr- und Lernanwendungen durchzuführen. Exemplarische Anwendungen zeigen, wie die Prozessmerkmale in VR umgesetzt werden können und unterstreichen das Potenzial von VR in diesem Bereich. Darüber hinaus bedarf es der Entwicklung grundlegender Gestaltungsprinzipien für inklusive VR-Anwendungen im schulischen Kontext.
Microscopic instability in recurrent neural networks
Creators: name: Yamanaka, Yuzuru
name: Amari, Shun-ichi
name: Shinomoto, Shigeru
Publisher: name: arXiv
Year: 2015
Subjects: subject: Neurons and Cognition (q-bio.NC)
subject: FOS: Biological sciences

description: In a manner similar to the molecular chaos that underlies the stable thermodynamics of gases, neuronal system may exhibit microscopic instability in individual neuronal dynamics while a macroscopic order of the entire population possibly remains stable. In this study, we analyze the microscopic stability of a network of neurons whose macroscopic activity obeys stable dynamics, expressing either monostable, bistable, or periodic state. We reveal that the network exhibits a variety of dynamical states for microscopic instability residing in given stable macroscopic dynamics. The presence of a variety of dynamical states in such a simple random network implies more abundant microscopic fluctuations in real neural networks, which consist of more complex and hierarchically structured interactions.
description: 9 pages, 12 figures
title: Text/Conference Paper
Creators: name: Komorowski, Tim
name: Weiland, Meike
name: König, Daniel
name: Heimes, Lilli
name: Gruber, Thomai Svenja
name: Heister, Michael
Publisher: name: Gesellschaft für Informatik e.V.
Year: 2023
Subjects: subject: Motivation
subject: Selbstbestimmungstheorie
subject: berufliche Bildung
subject: Digitalisierung

description: Die Digitalisierung der Arbeits- und Lebenswelt führt zu wachsenden Anforderungen an die digitalen Kompetenzen zukünftiger Fach- und Führungskräfte [He16]. Deshalb sollten die digita¬len Kompetenzen bereits in der Berufsschule gefördert werden [KMK16]. Dies gelingt besser, wenn sich die Gestaltung des Unterrichts und der genutzten digitalen Technologien an den psycho¬lo¬gi-schen Grundbedürfnissen der Selbstbestimmungstheorie [RD20] orientiert.
title: Text/Conference Paper
Creators: name: Dogaru, Teodora
name: Götze, Nora
name: Rotelli, Daniela
name: Berendsohn, Yoel
name: Merceron, Agathe
name: Sauer, Petra
Publisher: name: Gesellschaft für Informatik e.V.
Year: 2023
Subjects: subject: LMS
subject: Moodle log data analysis
subject: Data preprocessing

description: Analysing Learning Management System (LMS) log data gives insight into student learning behaviour that can help to predict performance, and as a consequence to avoid drop-out. This contribution provides an application and an adaptation of Rotelli and Monreale’s methodology [RM22] for defining tasks in a set of 10,532 online courses collected from seven universities. Unlike [RM22], we access the log data directly from the Moodle database. Even though our data set is much bigger and more heterogeneous than the one described in [RM22], we could adapt the data selection and filtering, as well as the components’ redefinition and alignment and employ their methodology to define tasks. This work is a contribution to make log data preprocessing open, replicable and more transparent.
Modern yields per stellar generation: the effect of the IMF
Creators: name: Vincenzo, Fiorenzo
name: Matteucci, Francesca
name: Belfiore, Francesco
name: Maiolino, Roberto
Publisher: name: arXiv
Year: 2015
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Gaseous and stellar metallicities in galaxies are nowadays routinely used to constrain the evolutionary processes in galaxies. This requires the knowledge of the average yield per stellar generation, $y_{\text{Z}}$, i.e. the quantity of metals that a stellar population releases into the interstellar medium (ISM), which is generally assumed to be a fixed fiducial value. Deviations of the observed metallicity from the expected value of $y_{\text{Z}}$ are used to quantify the effect of outflows or inflows of gas, or even as evidence for biased metallicity calibrations or inaccurate metallicity diagnostics. Here we show that $\rm y_{\text{Z}}$ depends significantly on the Initial Mass Function (IMF), varying by up to a factor larger than three, for the range of IMFs typically adopted in various studies. Varying the upper mass cutoff of the IMF implies a further variation of $y_{\text{Z}}$ by an additional factor that can be larger than two. These effects, along with the variation of the gas mass fraction restored into the ISM by supernovae ($R$, which also depends on the IMF), may yield to deceiving results, if not properly taken into account. In particular, metallicities that are often considered unusually high can actually be explained in terms of yield associated with commonly adopted IMFs such as the Kroupa (2001) or Chabrier (2003). We provide our results for two different sets of stellar yields (both affected by specific limitations) finding that the uncertainty introduced by this assumption can be as large as $\sim0.2$ dex. Finally, we show that $y_{\text{Z}}$ is not substantially affected by the initial stellar metallicity as long as $\text{Z}> 10^{-3}~\text{Z}_{\odot}$.
description: Accepted for publication in MNRAS, 9 pages, 6 figures, 3 tables; revised version appearing in the Journal (v2)
Retinal Pigment Epithelium After Application of the Cuban Treatment for Retinitis Pigmentosa.
Creators: name: Pérez Aguiar LJ
name: Herrera Mora MS
name: Barrientos Castaño A
Publisher: name: Escientific Publishers
Year: 2024

description: Summary

Purpose: To describe the possible effects on the retinal pigment epithelium generated by the application of the Cuban multithera­peutic treatment in patients with retinitis pigmentosa.  

Methods: A retrospective longitudinal descriptive study was carried out, selecting 16 eyes with retinitis pigmentosa after the ap­plication of the Cuban treatment for this disease. Infrared laser scanning confocal ophthalmoscopy was performed to acquire and process images of the retinal pigment epithelium areas before treatment, at one year, 7 years and 15 years after treatment.  

Results: Non-significant increases in central epithelial areas were observed in 6 right eyes and 5 left eyes at one year of the study, decreasing to their pre-treatment dimensions at 7 and 15 years. It is observed that in the same period 4 right and 4 left eyes that showed non-significant decreases at one year, maintained at 7 and 15 years similar dimensions to those obtained at the beginning of treatment.  

Conclusion The application of Cuban multitherapeutic treatment to treat patients with Retinitis Pigmentosa is an alternative that attempts to preserve the retinal pigment epithelium.
Calculation of BSM Kaon B-parameters using Staggered Quarks
Creators: name: Jang, Yong-Chull
name: Jeong, Hwancheol
name: Kim, Jangho
name: Kim, Seonghee
name: Lee, Weonjong
name: Leem, Jaehoon
name: Pak, Jeonghwan
name: Park, Sungwoo
name: Jung, Chulwoo
name: Kim, Hyung-Jin
name: Sharpe, Stephen R.
name: Yoon, Boram
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We present updated results for kaon B-parameters for operators arising in models of new physics. We use HYP-smeared staggered quarks on the $N_f = 2+1$ MILC asqtad lattices. During the last year we have added new ensembles, which has necessitated chiral-continuum fitting with more elaborate fitting functions. We have also corrected an error in a two-loop anomalous dimension used to evolve results between different scales. Our results for the beyond-the-Standard-Model B-parameters have total errors of $5-10$\%. We find that the discrepancy observed last year between our results and those of the RBC/UKQCD and ETM collaborations for some of the B-parameters has been reduced from $4\!-\!5\,σ$ to $2\!-\!3\,σ$.
description: 7 pages, 8 figures, Lattice 2014 proceeding
Analytical solutions of the geodesic equation in the spacetime of a black hole in f(R) gravity
Creators: name: Soroushfar, Saheb
name: Saffari, Reza
name: Kunz, Jutta
name: Lämmerzahl, Claus
Publisher: name: arXiv
Year: 2015
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We consider the motion of test particles in the spacetime of a black hole in f(R) gravity. The complete set of analytic solutions of the geodesic equation in the spacetime of this black hole are presented. The geodesic equations are solved in terms of Weierstrass elliptic functions and derivatives of Kleinian sigma functions. The different types of the resulting orbits are characterized in terms of the conserved energy and angular momentum as well as the cosmological constant $Λ$ and the real constant $β$.
description: 28 pages, 23 figures, Accepted for publication in Physical Review D
title: Text/Conference Paper
Creators: name: Tobin, Stephen
name: Wiepke, Axel
name: Lucke, Ulrike
Publisher: name: Gesellschaft für Informatik e.V.
Year: 2023
Subjects: subject: Virtual Reality
subject: Foreign Language Teaching
subject: Phonetics
subject: Clear Speech

description: We report extensions to a VR Classroom to provide trainee foreign language teachers with an opportunity to practice giving corrective feedback in the context of a digital media classroom. We propose further extensions to the classroom to give teachers feedback on speech clarity, which is critical for good communication and thus for effective learning in the classroom.
title: Intraspecific Variation in Prey Susceptibility Mediates the Consumptive Effect of Predation: A Case Study of Yellowstone Elk and Wolves
Creators: name: Smith, Lacy M.
Publisher: name: Utah State University
Year: 2021

description: The reintroduction of wolves (Canis lupus) to Yellowstone National Park starting in 1995 is an important case study for understanding the consequences of predation on a prey population. Simulation studies conducted prior to and shortly after wolf reintroduction predicted that wolf predation of elk (Cervus canadensis) would have a modest influence on elk abundance. Predation of elk by wolves has been well documented and elk have remained the primary prey for wolves despite a decline in elk abundance. I used two quantitative approaches to estimate the influence of wolf predation on adult female elk survival and abundance in northern Yellowstone and adjacent Montana during 2000-2017. My results suggest that, while wolves did kill adult female elk aged 2-14 years old, these elk generally had high survival. Elk were more likely to be killed by wolves as they aged. Wolf predation of adult female elk was primarily restricted to older individuals that generally comprised a small proportion of the total elk population. Harsh environmental conditions, such as heavy snow, increased mortality of adult elk, but elk aged 2-9 years old retained high survival regardless of the environmental conditions. The observed decline in elk abundance across the 17-year study was primarily due to mortality of 2-14 year-old elk that died due to causes unrelated to wolves, including malnutrition, harvest, and other predators. I could not estimate the full impact of wolves on female elk abundance because of the lack of data on elk calf and yearling mortality. However, wolves likely had a smaller impact on the elk population than did non-wolf causes of elk mortality. These findings clarify how the impact of predation on a prey population may be limited by the age of the prey that are consumed and the relative importance of the predated individuals to the population (i.e., their reproductive potential).
Can dark matter induce cosmological evolution of the fundamental constants of Nature?
Creators: name: Stadnik, Y. V.
name: Flambaum, V. V.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: Nuclear Theory (nucl-th)
subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: We demonstrate that massive fields, such as dark matter, can directly produce a cosmological evolution of the fundamental constants of Nature. We show that a scalar or pseudoscalar (axion-like) dark matter field $ϕ$, which forms a coherently oscillating classical field and interacts with Standard Model particles via quadratic couplings in $ϕ$, produces `slow' cosmological evolution and oscillating variations of the fundamental constants. We derive limits on the quadratic interactions of $ϕ$ with the photon, electron and light quarks from measurements of the primordial $^4$He abundance produced during Big Bang nucleosynthesis and recent atomic dysprosium spectroscopy measurements. These limits improve on existing constraints by up to 15 orders of magnitude. We also derive limits on the previously unconstrained linear and quadratic interactions of $ϕ$ with the massive vector bosons from measurements of the primordial $^4$He abundance.
description: 7 pages. 1 figure. Version to appear in Physical Review Letters. This final version now includes also results amalgamated from our work arXiv:1504.01798
On the survival probability of a random walk in random environment with killing
Creators: name: Junk, Stefan
Publisher: name: arXiv
Year: 2015
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics
subject: 60K37

description: We consider one dimensional random walks in random environment where every time the process stays at a location, it dies with a fixed probability. Under some mild assumptions it is easy to show that the survival probability goes to zero as time tends to infinity. In this paper we derive formulas for the rate with which this probability decays. It turns out that there are three distinct regimes, depending on the law of the environment.
Approach to asymptotically diffusive behavior for Brownian particles in media with periodic diffusivities
Creators: name: Dean, David S.
name: Guérin, Thomas
Publisher: name: arXiv
Year: 2014
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We analyze the mean squared displacement of a Brownian particle in a medium with a spatially varying local diffusivity which is assumed to be periodic. When the system is asymptotically diffusive the mean squared displacement, characterizing the dispersion in the system, is, at late times, a linear function of time. A Kubo type formula is given for the mean squared displacement which allows the recovery of some known results for the effective diffusion constant $D_e$ in a direct way, but also allows an understanding of the asymptotic approach to the diffusive limit. In particular, as well as as computing the slope of a linear fit to the late time mean squared displacement, we find a formula for the constant where the fit intersects the y axis.
description: 8 pages, 2 figures, revtex
Ion trajectory analysis for micromotion minimization and the measurement of small forces
Creators: name: Gloger, Timm F.
name: Kaufmann, Peter
name: Kaufmann, Delia
name: Baig, M. Tanveer
name: Collath, Thomas
name: Johanning, Michael
name: Wunderlich, Christof
Publisher: name: arXiv
Year: 2015
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: For experiments with ions confined in a Paul trap, minimization of micromotion is often essential. In order to diagnose and compensate micromotion we have implemented a method that allows for finding the position of the radio-frequency (RF) null reliably and efficiently, in principle, without any variation of direct current (DC) voltages. We apply a trap modulation technique and focus-scanning imaging to extract 3d ion positions for various RF drive powers and analyze the power dependence of the equilibrium position of the trapped ion. In contrast to commonly used methods, the search algorithm directly makes use of a physical effect as opposed to efficient numerical minimization in a high-dimensional parameter space. Using this method we achieve a compensation of the residual electric field that causes excess micromotion in the radial plane of a linear Paul trap down to 0.09V/m. Additionally, the precise position determination of a single harmonically trapped ion employed here can also be utilized for the detection of small forces. This is demonstrated by determining light pressure forces with a precision of 135yN. As the method is based on imaging only, it can be applied to several ions simultaneously and is independent of laser direction and thus well-suited to be used with, for example, surface-electrode traps.
description: 22 pages, 9 figures
La population et le pouvoir de Platon à Marx
Creators: name: Charbit, Yves
Publisher: name: Zenodo
Year: 2020

description: Alors même que la démographie n’existait pas, le concept de population s’est élaboré à travers les siècles à partir de trois disciplines : la philosophie politique et la philosophie morale dans un premier temps, l’économie politique ensuite. Les relations entre le pouvoir et la population ont été explicitement posées par les mercantilistes, dans une logique d’instrumenalisation par le Prince, mais sans réelle théorisation. Les contributions d’autres penseurs majeurs (Bodin, Grotius, Pufendorf, Spinoza, Hobbes, Locke, Quesnay, etc.) à des questions telles que la souveraineté, le degré de liberté de l’individu par rapport à l’État, le conflit des intérêts, le respect de la propriété, l’instruction, éclairent singulièrement la construction du concept tel que nous le connaissons aujourd’hui. Au XVIIIème siècle, un double tournant décisif est pris avec l’économie politique : Adam Smith dessine un homo oeconomicus utilitariste, tandis que Malthus opère une révolution théorique et doctrinale en démontrant la possibilité d’une croissance démoéconomique. Au XIXème siècle, les analyses de la fécondité, de la mortalité et de la mobilité alimentent un plaidoyer idéologique pour un modèle bourgeois de comportement démographique à vocation universelle. Ni Proudhon ni Marx ne parvinrent à s’y opposer avec succès. Ce texte développe le discours de réception du doctorat Honoris Causa décerné par l’Université de Cordoba (Argentine) le 6 juin 2019.
description: https://www.ceped.org/wp
title: Text/Conference Paper
Creators: name: Walter, David
name: Di Maria, Marco
name: Knackstedt, Ralf
Publisher: name: Gesellschaft für Informatik e.V.
Year: 2023
Subjects: subject: Technostress
subject: App Development
subject: Digital Well-Being

description: Increasing use of technology in education can be a major concern for students as this can lead to technostress. To mitigate this, we develop a mobile application aimed at reducing techno-overload and techno-invasion, two stressors causing technostress. To do so, we suggest the features: goal management, rewarding, and reflection.
title: Text/Conference Paper
Creators: name: Hofmann-von Kap-Herr, Ulrich
Publisher: name: Gesellschaft für Informatik e.V.
Year: 2023
Subjects: subject: Formative Assessments
subject: Design
subject: Baukasten
subject: One-Page-Layout
subject: ILIAS
subject: LMS
subject: Responsivität
subject: Individu¬ali¬sierbarkeit
subject: Modularität
subject: Lehrinhalte
subject: Lehrszenarien

description: Formative Assessments können mit diversen Softwareprodukten Realisierung finden und müssen, um den Lernerfolg abbilden zu können, kontextualisiert werden. Das entwickelte Layout integriert unterschiedliche Lehr-/Lern-Bausteine sowie Medien (Übungen, Filme mit Kontext¬fragen, Upload von Abgaben, kollaboratives Schreiben, Umfragen usw.) und setzt diese in ILIAS - unter Verwendung der Funktion Lernerfolgskontrolle - in Beziehung. Der modulare Aufbau ermöglicht es Lehrszenarien individualisiert und semesterunabhängig zu unterstützen. Alle Elemente sind individuell anpassbar, das Layout erweiterbar. Das Design ist responsiv, das Interface nimmt Bezug zu den Inhalten (Ikons) auf.
Landau damping of Gardner solitons in a dusty bi-ion plasma
Creators: name: Misra, A. P.
name: Barman, Arnab
Publisher: name: arXiv
Year: 2015
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: The effects of linear Landau damping on the nonlinear propagation of dust-acoustic solitary waves (DASWs) are studied in a collisionless unmagnetized dusty plasma with two species of positive ions. The extremely massive, micron-seized, cold and negatively charged dust particles are described by fluid equations, whereas the two species of positive ions, namely the cold (heavy) and hot (light) ions are described by the kinetic Vlasov equations. Following Ott and Sudan [Phys. Fluids {\bf 12}, 2388 (1969)], and by considering lower and higher-order perturbations, the evolution of DASWs with Landau damping is shown to be governed by Korteweg-de Vries (KdV), modified KdV (mKdV) or Gardner (KdV-mKdV)-like equations. The properties of the phase velocity and the Landau damping rate of DASWs are studied for different values of the ratios of the temperatures $(σ)$ and the number densities $(μ)$ of hot and cold ions as well the cold to hot ion mass ratio $m$. The distinctive features of the decay rates of the amplitudes of the KdV, mKdV and Gardner solitons with a small effect of Landau damping are also studied in different parameter regimes. It is found that the Gardner soliton points to lower wave amplitudes than the KdV and mKdV solitons. The results may be useful for understanding the localization of solitary pulses and associated wave damping (collisionless) in laboratory and space plasmas (e.g., the F-ring of Saturn) in which the number density of free electrons is much smaller than that of ions and the heavy, micron seized dust grains are highly charged.
description: 13 pages, 4 figures, to appear in Phys. Plasmas (2015); in the revised version some expressions are rectified, detailed derivation of some expressions are given and figure 4 is redrawn
A Study on Estimating the Rice Loss Rate
Creators: name: Park, Donggyu
name: Park, Donggyu
Publisher: name: Unknown
Year: 2011
Subjects: subject: Crop Production/Industries
subject: rice
subject: loss
subject: statistics

description: According to the results of this research, the possible amount of rice that is lost during the process from harvesting to distribution is 7~8%. It is estimated that 4.1% of rice produced is lost during the harvesting stage and due to statistical error, the actual loss in the process of harvesting in the fields could be a little more than the estimate. In the storage and polishing stages of rice, it is estimated that 2.09% of rice is lost due to evaporation. Also, 0.5% of rice is lost due to evaporation in the distribution stage. In conclusion, the lowest rate of rice loss from harvesting to distribution is 6.7%. If the damage from diseases and insects is taken into account, it is estimated that the actual rate of rice loss is likely to be around 7~8% of rice produced. In order to estimate the rate of rice loss more accurately, it is essential that thorough investigation is performed for at least three years on each stages of the rice production process from harvesting to distribution. However, this study has some limits. First, rice loss estimation in the storage and polishing stages is based on the result of a specific year. The rice loss with statistical error in a specific year can vary according to weather conditions. And distribution of statistical error generated by the adjustment of rate of rice loss is a task to be solved.
Facilitating Evolution during Design and Implementation
Creators: name: McClatchey, R.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Software Engineering (cs.SE)
subject: FOS: Computer and information sciences
subject: H.2.8

description: The volumes and complexity of data that companies need to handle are increasing at an accelerating rate. In order to compete effectively and ensure their commercial sustainability, it is becoming crucial for them to achieve robust traceability in both their data and the evolving designs of their systems. This is addressed by the CRISTAL software which was originally developed at CERN by UWE, Bristol, for one of the particle detectors at the Large Hadron Collider, and has been subsequently transferred into the commercial world. Companies have been able to demonstrate increased agility, generate additional revenue, and improve the efficiency and cost-effectiveness with which they develop and implement systems in various areas, including business process management (BPM), healthcare and accounting applications. CRISTALs ability to manage data and its provenance at the terabyte scale, with full traceability over extended timescales, together with its description-driven approach, has provided the flexible adaptability required to future proof dynamically evolving software for these businesses.
description: 6 paqes; 3 figures in Kunstliche Intelligenz AI Market 2014
Transition Redshift: New constraints from parametric and nonparametric methods
Creators: name: Rani, Nisha
name: Jain, Deepak
name: Mahajan, Shobhit
name: Mukherjee, Amitabha
name: Pires, Nilza
Publisher: name: arXiv
Year: 2015
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: In this paper, we use the Cosmokinematics approach to study the accelerated expansion of the Universe. This is a model independent approach and depends only on the assumption that the Universe is homogeneous and isotropic and is described by the FRW metric. We parametrize the deceleration parameter, $q(z)$, to constrain the transition redshift ($z_t$) at which the expansion of the Universe goes from a decelerating to an accelerating phase. We use three different parametrizations of $q(z)$ namely, $q_\I(z)=q_{\textnormal{\tiny\textsc{1}}}+q_{\textnormal{\tiny\textsc{2}}}z$, $q_\II (z) = q_\3 + q_\4 \ln (1 + z)$ and $q_\III(z)=\frac{1}{2}+\frac{q_{\textnormal{\tiny\textsc{5}}}}{(1+z)^2}$. A joint analysis of the age of galaxies, strong lensing and supernovae Ia data indicates that the transition redshift is less than unity i.e. $z_t<1$. We also use a nonparametric approach (LOESS+SIMEX) to constrain $z_t$. This too gives $z_t<1$ which is consistent with the value obtained by the parametric approach.
description: Accepted for publication in JCAP