cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
title: Effects of Ultrasonic Scaling and Hand-Activated Scaling on Tactile Sensitivity in Dental Hygiene Students
Creators: name: Ryan, Danielle Leigh
Publisher: name: Old Dominion University Libraries
Year: 2003

description: This study was conducted in order to determine if tactile sensitivity varies in dental hygiene students who use the ultrasonic scaler as compared to those who scale with handactivated instruments. A convenience sample of 40 consenting, first year dental hygiene students were randomly assigned to one of two groups. The 40 students had not yet used the ultrasonic scaler nor had any history of injuries or disabilities to the dominant arm, wrist or hand. After establishing a baseline tactile sensitivity score with the Vibratory Sensory Analyzer (VSA), experimental group subjects used the ultrasonic scaler to remove 4cc's of artificial calculus from a typodont in a controlled, simulated clinical setting for 45-minutes while each control subject manually scaled 4cc's of artificial calculus on a typodont in a controlled, simulated situation for 45-minutes. Tactile sensitivity scores were obtained using the VSA immediately following exposure to either the ultrasonic scaler or hand-activated scaling instruments. Analysis of variance with one repeated measures factor was used to determine between group and within group differences on the pretest and post-test tactile sensitivity scores. Results revealed that following a 45- minute scaling session with the ultrasonic scaler, tactile sensitivity increased. Pre to posttest changes in tactile sensitivity for the ultrasonic scaling group exhibited a much larger threshold as compared to those in the hand-activated scaling group, supporting a gain in students' level of sensitivity with stimulus (vibration). Tactile sensitivity decreased in those who used hand-activated scaling instruments. The thumb, index and middle fingers of students in both groups showed similarities in tactile sensitivity, with the index finger being the most sensitive. Ultrasonic scalers allow the hygienist to exert less pressure and decrease pinching and gripping forces, therefore implying a potential long-term reduction in musculoskeletal disorders. Results also underscore the potential importance of the index finger in detecting calculus and tooth surface irregularities. It was concluded that tactile sensitivity decreases with hand-activated scaling and increases with ultrasonic scaling over a 45-minute period. Short term vibration exposure from the ultrasonic scaler is insufficient to negatively affect tactile sensitivity. The long term effects of scaling with hand-activated and mechanized instruments on tactile sensitivity warrants further testing on clients in a clinical setting.
The boron-to-carbon abundance ratio and Galactic propagation of cosmic radiation
Creators: name: Obermeier, A.
name: Boyle, P.
name: Hörandel, J.
name: Müller, D.
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: In two long-duration balloon flights in 2003 and 2006, the TRACER cosmic-ray detector has measured the energy spectra and the absolute intensities of the cosmic-ray nuclei from boron (Z = 5) to iron (Z = 26) up to very high energies. In particular, the second flight has led to results on the energy spectrum of the secondary boron nuclei, and on the boron abundance relative to that of the heavier primary parent nuclei, commonly quantified as the "B/C abundance ratio". The energy dependence of this ratio, now available up to about 2 TeV per amu, provides a measure for the energy dependence of cosmic-ray propagation through the Galaxy, and for the shape of the cosmic-ray source energy spectrum. We use a Leaky-Box approximation of cosmic-ray propagation to obtain constraints on the relevant parameters on the basis of the results of TRACER and of other measurements. This analysis suggests that the source energy spectrum is a relatively soft power law in energy E^{-α}, with spectral exponent α= 2.37 \pm 0.12, and that the propagation path length Λ(E) is described by a power law in energy with exponent δ= 0.53 \pm 0.06, but may assume a constant residual value Λ_0 at high energy. The value of Λ_0 is not well constrained but should be less than about 0.8 g cm^{-2}. Finally, we compare the data with numerical solutions of a diffusive reacceleration model, which also indicates a soft source spectrum.
description: Accepted for publication in ApJ
Confronting the primordial black hole scenario with the gravitational-wave events detected by LIGO-Virgo
Creators: name: Chen, Zu-Cheng
name: Yuan, Chen
name: Huang, Qing-Guo
Publisher: name: arXiv
Year: 2021
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Adopting a binned method, we model-independently reconstruct the mass function of primordial black holes (PBHs) from GWTC-3 and find that such a PBH mass function can be explained by a broad red-tilted power spectrum of curvature perturbations. Even though GW190521 with component masses in upper mass gap $(m>65M_\odot)$ can be naturally interpreted in the PBH scenario, the events (including GW190814, GW190425, GW200105, and GW200115) with component masses in the light mass range $(m<3M_\odot)$ are quite unlikely to be explained by binary PBHs although there are no electromagnetic counterparts because the corresponding PBH merger rates are much smaller than those given by LIGO-Virgo. Furthermore, we predict that both the gravitational-wave (GW) background generated by the binary PBHs and the scalar-induced GWs accompanying the formation of PBHs should be detected by the ground-based and space-borne GW detectors and pulsar timing arrays in the future.
description: 7 pages, 2 figures; updated to GWTC-3
Hydrological Time Series Modelling and Applications
Creators: name: Asadzadeh, Ilnaz
Publisher: name: Graduate Studies
Year: 2016
Subjects: subject: Education--Mathematics
subject: Hydrology
subject: Statistics
subject: FOS: Mathematics
subject: Engineering--Operations Research
subject: Copulas
subject: Stochastic Dynamic Programming
subject: Upper and Lower Tail Dependence

description: We consider the problem of measuring reliability of a hydro reservoir over a finite horizon with a stochastic optimal control technique. To apply this technique, we need to model the underlying stochastic process which is the inflow of water to the reservoir. Typical time series models for such problems only capture linear dependency (simple correlation) in the data. Alternative approaches include artificial neural network methods but these lack a theoretical foundation and a systematic procedure for the construction of the model. To overcome both of these limitations, we propose a new framework based on the application of copulas to univariate time series modelling. Our model shows that some important statistical characteristics of hydrological time series, such as upper and lower tail dependencies, persistence, etc., can be described with the aid of copulas. In turn, this provides insight regarding the qualitative properties of the underlying time series. Our main contribution is a new method of estimation based on a semi-parametric technique. By semi-parametric we mean using empirical autocopula (copula of a time series with itself with different lags), and parametric marginal distributions. Goodness of fit analysis is carried out and numerical results are illustrated with variety of concrete examples and sample data sets. We then benchmark and compare our scheme to alternative methods such as parametric models and various other time series modelling techniques. The final part of the dissertation proposes an application of stochastic optimal control to measure the reliability function (the probability that a system will perform the required function for a specified period of time under stated conditions) of the reservoir. For this section, we work with both uncorrelated and correlated inflow time series. For the first case, we generate independent inflow series using some probability distribution and for the second assumption, correlated inflow series, we employ the values of inflow generated using the autocopula method.
ЭКСПОРТНЫЙ ПОТЕНЦИАЛ АГРОПРОДОВОЛЬСТВЕННОЙ ПРОДУКЦИИ РОССИИ С УЧЕТОМ ПРИОРИТЕТА ОБЕСПЕЧЕНИЯ ПРОДОВОЛЬСТВЕННОЙ БЕЗОПАСНОСТИ
Creators: name: Белугин Алексей Юрьевич
Publisher: name: Международный сельскохозяйственный журнал
Year: 2020
Subjects: международная торговля
сравнительные преимущества
комплементарность
экспортный потенциал
продовольственная безопасность
сельское хозяйство

description: Целью проведенного исследования является выявление групп российских агропродовольственных товаров, по которым возможно наращивание экспорта, а также определение перспективных рынков для их реализации. За счет комбинированного применения балансового метода и индексов Балассы и Лафея определено, что Россия имеет сравнительные преимущества и возможности по наращиванию экспорта конкурентных на международном рынке видов зерна и растительного масла при сохранении возможности для населения питаться в среднем по рациональным нормам. Также выявлены сравнительные преимущества по различным видам российской рыбной продукции, однако при существующих объемах экспорта ее уже не остается на внутреннем рынке для обеспечения продовольственной безопасности. Для дальнейшего наращивания экспорта российской рыбной продукции необходимо увеличить ее импорт. Отдельно выделены группы товаров, производимых в достаточных объемах, но не характеризующихся выявленными сравнительными преимуществами (сахар, яйца, мясо птицы, свинина), а также товары, по которым отсутствуют излишки и не выявлены сравнительные преимущества (овощи, фрукты, молочная продукция, говядина). Поддержка экспорта по указанным товарным группам не представляется целесообразной. К числу приоритетных рынков для поставок российской агропродовольственной продукции относится Турция, импортирующая в больших объемах зерно и растительные масла, а также экспортирующая продукцию переработки зерна. Высокие обороты и комплементарность торговли с Турцией характеризует перспективность заключения торговых соглашений и союзов с Россией.
Lectures on hydrodynamic fluctuations in relativistic theories
Creators: name: Kovtun, Pavel
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: These are pedagogical lecture notes on hydrodynamic fluctuations in normal relativistic fluids. The lectures discuss correlation functions of conserved densities in thermal equilibrium, interactions of the hydrodynamic modes, an effective action for viscous fluids, and the breakdown of the derivative expansion in hydrodynamics.
description: 55 pages. Based on lectures given at the Seattle INT Summer School on Applications of String Theory in July 2011
Searching for Isotropic Stochastic Gravitational-Wave Background in the International Pulsar Timing Array Second Data Release
Creators: name: Chen, Zu-Cheng
name: Wu, Yu-Mei
name: Huang, Qing-Guo
Publisher: name: arXiv
Year: 2021
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We search for isotropic stochastic gravitational-wave background (SGWB) in the International Pulsar Timing Array second data release. By modeling the SGWB as a power-law, we find very strong Bayesian evidence for a common-spectrum process, and further this process has scalar transverse (ST) correlations allowed in general metric theory of gravity as the Bayes factor in favor of the ST-correlated process versus the spatially uncorrelated common-spectrum process is $30\pm 2$. The median and the $90\%$ equal-tail amplitudes of ST mode are $\mathcal{A}_{\mathrm{ST}}= 1.29^{+0.51}_{-0.44} \times 10^{-15}$, or equivalently the energy density parameter per logarithm frequency is $Ω_{\mathrm{GW}}^{\mathrm{ST}} = 2.31^{+2.19}_{-1.30} \times 10^{-9}$, at frequency of 1/year. However, we do not find any statistically significant evidence for the tensor transverse (TT) mode and then place the $95\%$ upper limits as $\mathcal{A}_{\mathrm{TT}}< 3.95 \times 10^{-15}$, or equivalently $Ω_{\mathrm{GW}}^{\mathrm{TT}}< 2.16 \times 10^{-9}$, at frequency of 1/year.
description: 7 pages, 4 figures, 3 tables
КОМПЛЕКСНАЯ ОЦЕНКА НАЦИОНАЛЬНОЙ АГРОПРОДОВОЛЬСТВЕННОЙ СИСТЕМЫ В КОНТЕКСТЕ УСТОЙЧИВОГО РАЗВИТИЯ
Creators: name: Рыбасова Юлия Викторовна
name: Довготько Наталья Анатольевна
name: Чередниченко Ольга Александровна
name: Медяник Наталья Витальевна
Publisher: name: Международный сельскохозяйственный журнал
Year: 2020
Subjects: устойчивое развитие
национальная агропродовольственная система
принципы устойчивости ФАО
сельские территории
продовольственная безопасность
природные ресурсы
государственная аграрная политика

description: В статье доказывается тезис, что устойчивость агропродовольственной системы для национальных экономик имеет критически важное значение, полагая в долгосрочном периоде экономически эффективное производство необходимого для каждого человека количества и качества продуктов питания, целостность используемых в аграрном производстве экосистем, а также социально-экономическое благополучие сельских жителей и территорий. Целью статьи явилась диагностика параметров устойчивости национальной агропродовольственной системы на материалах Российской Федерации. Разработан методический и оценочный инструментарий для комплексного анализа устойчивости национальной агропродовольственной системы, основанный на экономической эффективности, социальном благополучии и экологической безопасности, параметрах соответствия пяти ключевым принципам ФАО, обеспечивающим сбалансированность социальных, экономических и экологических аспектов ведения аграрного производства и сельского образа жизни. В рамках экономического вектора выявлены отставание в продовольственном обеспечении по молоку, рыбе, овощам, бахчевым, фруктам и ягодам; кратный рост экспорта сельхозпродукции, преимущественно сырьевой; обоснована секторальная диверсификация, основанная на интенсификации производства и формировании продуктовых цепочек добавленной стоимости. В основе экологического вектора верифицирована необходимость воспроизводства долговременного продуктивного оборота сельхозземель, сохранности степных экосистем, экосистемных сервисов, климатически адаптированных агротехнологий. В рамках социального вектора выявлено отставание сельских территорий от городских в оплате труда, располагаемых ресурсах и денежных расходах домохозяйств, благоустройстве жилищного фонда, занятости; обоснованы меры занятости и консолидации производительного потенциала селян и экосервисная роль сельских территорий. Показана необходимость активной государственной аграрной политики в партнерстве с бизнесом и домохозяйствами, расширенная социальным проектированием, цифровизацией и «умными» агротехнологиями, экосистемным подходом. Предложения авторов статьи формируют методическую платформу и оценочный инструментарий для дальнейшего научного поиска и комплексной диагностики параметров устойчивости национальной агропродовольственной системы.
СОВРЕМЕННЫЙ ЭКОНОМИКО-МАТЕМАТИЧЕСКИЙ ИНСТРУМЕНТАРИЙ АНАЛИЗА ПОСЛЕДСТВИЙ ИЗМЕНЕНИЯ КЛИМАТА
Creators: name: Светлов Николай Михайлович
Publisher: name: Международный сельскохозяйственный журнал
Year: 2020
Subjects: климат
глобальное потепление
математическое моделирование
исследование операций
частичное равновесие
производственная программа
PF+PE-модель
архитектура модели

description: В статье показано, каким образом применение инновационной архитектуры PF+PE-модели и основанной на ней модели частичного равновесия на рынках сельскохозяйственной продукции субъектов РФ, разработанной в ВИАПИ имени А.А. Никонова — филиале ФНЦ ВНИИЭСХ, закрывает пробелы в решении проблемы научного обоснования подходов к адаптации сельского хозяйства России к меняющемуся климату. Для этой цели раскрыты методологические основы PF+PE-архитектуры в сравнении с двумя ее ближайшими аналогами — архитектурой PEMP и системами моделей, включающими в себя задачи производителей об оптимальных производственных программах вместе с системами уравнений частичного равновесия (на примере CAPRI). Представлено схематичное описание архитектуры, определен круг задач, для решения которых она предназначена, изложены ее преимущества и недостатки. В приложении к проблематике обоснования управленческих решений в сельском хозяйстве в условиях меняющегося климата архитектура PF+PE-моделей обладает рядом уникальных преимуществ в сравнении как с традиционными моделями частичного равновесия, так и с ближайшими аналогами, включающими в свой состав, наряду с уравнениями частичного равновесия, задачи производителя. К числу наиболее важных из них относятся способность воспроизводить влияние изменяющегося климата на географическое положение природно-сельскохозяйственных зон, возможность изучать влияние сценарных факторов — климатических и политических — на колеблемость результатов деятельности сельхозтоваропроизводителей и ситуации на рынках, возможность расчета объективно обусловленных оценок ресурсов. На этом основании, а также принимая во внимание накопленный практический опыт применения вышеупомянутой модели, рекомендовано использовать ее в качестве инструмента информационно-консультационного обслуживания инвесторов в контексте совершенствования территориально-отраслевой структуры сельского хозяйства России в условиях изменяющегося климата.
The Flavor Structure of the Three-Site Higgsless Model
Creators: name: Abe, Tomohiro
name: Chivukula, R. Sekhar
name: Simmons, Elizabeth H.
name: Tanabashi, Masaharu
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We study the flavor structure of the three-site Higgsless model and evaluate the constraints on the model arising from flavor physics. We find that current data constrain the model to exhibit only minimal flavor violation at tree level. Moreover, at the one-loop level, by studying the leading chiral logarithmic corrections to chirality-preserving Delta F = 1 and Delta F = 2 processes from new physics in the model, we show that the combination of minimal flavor violation and ideal delocalization ensures that these flavor-changing effects are sufficiently small that the model remains phenomenologically viable.
description: 23 pages, 22 pdf figures included
Micronectidae
Creators: name: Csabai, Zoltán
name: Soós, Nándor
name: Berchi, Gavril Marius
name: Cianferoni, Fabio
name: Boda, Pál
name: Móra, Arnold
Publisher: name: Zenodo
Year: 2017
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hemiptera
Micronectidae

description: Micronectidae   Micronecta sp. (nymphs)
 Material examined. RHODES: M. of South Rhodos: 0 56 Apolakkia, dam-lake, 36°06’08”N 27°47’55”E, 16.ii.2007, 5, L1.
description: Published as part of Csabai, Zoltán, Soós, Nándor, Berchi, Gavril Marius, Cianferoni, Fabio, Boda, Pál & Móra, Arnold, 2017, Aquatic and semiaquatic Heteroptera (Nepomorpha and Gerromorpha) fauna of Greek holiday islands (Rhodes, Crete and Corfu) with first records of three species from Europe and Greece, pp. 51-69 in Zootaxa 4231 (1) on page 55, DOI: 10.11646/zootaxa.4231.1.3, http://zenodo.org/record/311659
Isomeric states close to doubly magic $^{132}$Sn studied with JYFLTRAP
Creators: name: Kankainen, A.
name: Hakala, J.
name: Eronen, T.
name: Gorelov, D.
name: Jokinen, A.
name: Kolhinen, V. S.
name: Moore, I. D.
name: Penttilä, H.
name: Rinta-Antila, S.
name: Rissanen, J.
name: Saastamoinen, A.
name: Sonnenschein, V.
name: Äystö, J.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: The double Penning trap mass spectrometer JYFLTRAP has been employed to measure masses and excitation energies for $11/2^-$ isomers in $^{121}$Cd, $^{123}$Cd, $^{125}$Cd and $^{133}$Te, for $1/2^-$ isomers in $^{129}$In and $^{131}$In, and for $7^-$ isomers in $^{130}$Sn and $^{134}$Sb. These first direct mass measurements of the Cd and In isomers reveal deviations to the excitation energies based on results from beta-decay experiments and yield new information on neutron- and proton-hole states close to $^{132}$Sn. A new excitation energy of 144(4) keV has been determined for $^{123}$Cd$^m$. A good agreement with the precisely known excitation energies of $^{121}$Cd$^m$, $^{130}$Sn$^m$, and $^{134}$Sb$^m$ has been found.
description: 10 pages, 6 figures, submitted to Phys. Rev. C
Lubricin Binds to and Regulates Toll-like Receptor (TLR) Activity
Creators: name: Iqbal, Shah
Publisher: name: Graduate Studies
Year: 2015
Subjects: subject: Biology--Cell
subject: Biology--Molecular
subject: Lubricin
subject: Toll-like Receptor
subject: Osteoarthritis

description: In this study, lubricin, a protein involved in the lubrication of joints, was discovered to bind to and activate toll-like receptors (TLR). Since TLRs are a major component of the innate immune system, this suggests that lubricin may also play a role in the regulation of the inflammatory response. We attempted to elucidate whether lubricin has a pro- or anti-inflammatory role in the joint following TLR binding. To determine if lubricin-TLR interaction could be playing a role in Osteoarthritis (OA), we examined the cytokine secretions of OA fibroblasts treated with lubricin and demonstrated a potentially anti-inflammatory effect. Furthermore, in vivo studies demonstrated lubricin’s ability to mitigate pain, joint damage, and inflammation following an injury in a rat OA model. The experiments presented in this thesis suggest that lubricin could have anti-inflammatory effects when binding to TLRs at the cellular and tissue level.
ИНСТИТУЦИОНАЛЬНЫЕ ФАКТОРЫ РАЗВИТИЯ СТРАХОВАНИЯ СЕЛЬСКОХОЗЯЙСТВЕННЫХ РИСКОВ В СТРАНАХ ЕАЭС
Creators: name: Коростелев Вячеслав Геннадьевич
name: Кадомцева Марина Евгеньевна
Publisher: name: Международный сельскохозяйственный журнал
Year: 2020
Subjects: Евразийский экономический союз
агрострахование
сельское хозяйство
государственная поддержка
интеграция
риски
экономическая эффективность

description: В статье рассматриваются институциональные аспекты формирования и развития национальных систем страхования сельскохозяйственных рисков стран-участниц Евразийского экономического союза (ЕАЭС). Цель исследования состоит в изучении современного состояния агрострахования в странах ЕАЭС и выработке новых подходов к оценке потенциала его развития в рамках интеграционного сотрудничества. Проведен анализ фактического состояния страхования сельскохозяйственных рисков в странах ЕАЭС, рассмотрены основные тенденции его развития, изучен опыт государственной поддержки. Это позволило выделить сходства и различия моделей агрострахования, их достоинства и недостатки. Выявлены институциональные факторы, влияющие на формирование и развитие национальных систем страхования сельскохозяйственных рисков. На основе анализа структуры производства сельскохозяйственной продукции каждой из стран интеграционного сотрудничества обоснована целесообразность исследования развития агрострахования в разрезе моделей частно-государственного партнерства. Предлагаемый подход дает понимание особенностей организации моделей агрострахования, сложившихся в странах ЕАЭС, и позволяет оценить потенциальные возможности и ограничения развития агрострахования на едином экономическом пространстве.
Physical Activity and Nutrition in Head and Neck Oncology: Developing a Patient-Oriented, Clinic-Supported Program
Creators: name: Capozzi, Lauren Caroline
Publisher: name: Graduate Studies
Year: 2015
Subjects: subject: Oncology
subject: Rehabilitation and Therapy
subject: Psychology--Behavioral
subject: cancer
subject: Exercise
subject: psychosocial
subject: Rehabilitation
subject: Head and Neck Cancer
subject: health behaviour

description: Head and neck cancer is a debilitating disease associated with a variety of acute and chronic symptoms and treatment-related side effects. Effective rehabilitation programs are necessary to improve patient physical and psychosocial outcomes following diagnosis. In recent years, the role of physical activity in improving patient physical and psychosocial functioning following a cancer diagnosis has become apparent. With improved rates of survival, in particular within subgroups of head and neck cancer such as the human papilloma virus positive group, the role of physical activity is of interest The purpose of the present research was to: 1) review existing head and neck cancer and physical activity literature; 2) evaluate the feasibility of a group-based resistance training pilot program in managing symptoms and side effects following diagnosis; 3) assesses differences in physical activity participation between human papilloma virus positive versus human papilloma virus negative head and neck cancer patients; 4) examine the physical and psychosocial impact of a 12-week physical activity and lifestyle intervention during and immediately following radiation therapy; 5) and summarize the key findings from these studies to provide updated conclusions regarding the role of physical activity for head and neck cancer survivors. This work highlights the role of physical activity and a health behaviour change intervention in head and neck cancer patients from the point of diagnoses onwards. Although the randomized controlled trial conducted revealed no significant added benefit of a lifestyle intervention on lean body mass maintenance during radiation treatment, it is clear from the pilot work and reviewed literature that physical activity plays a valuable role in head and neck cancer survivorship. With low physical activity participation following diagnoses, especially among human papilloma virus negative head and neck cancer patients, targeted evidence-based clinic and community based programs designed to support patients with physical activity adoption and adherence are required. Ongoing work will be valuable in further clarifying the specific role of physical activity for these patients and how it can be tailored for maximized symptom and side effect management, ultimately improving head and neck cancer survivorship.
The dynamics of stars around spiral arms
Creators: name: Grand, Robert J. J.
name: Kawata, Daisuke
name: Cropper, Mark
Publisher: name: arXiv
Year: 2011
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Spiral density wave theory attempts to describe the spiral pattern in spiral galaxies in terms of a long-lived wave structure with a constant pattern speed in order to avoid the winding dilemma. The pattern is consequently a rigidly rotating, long-lived feature. We run N-body simulations of a giant disc galaxy consisting of a pure stellar disc and a static dark matter halo, and find that the spiral arms are transient features whose pattern speeds decrease with radius, in such a way that the pattern speed is almost equal to the rotation curve of the galaxy. We trace particle motion around the spiral arms. We show that particles from behind and in front of the spiral arm are drawn towards and join the arm. Particles move along the arm in the radial direction and we find a clear trend that they migrate toward the outer (inner) radii on the trailing (leading) side of the arm. Our simulations demonstrate that because the spiral arm feature is co-rotating, the particles continue to be accelerated (decelerated) by the spiral arm for long periods, which leads to strong and efficient migration, at all radii in the disc.
description: 11 pages, 12 figures, MNRAS in press
Estimation of Shear wave velocities from P-P and P-S seismic data using Equivalent Offset Migration
Creators: name: Guirigay, Thais America
Publisher: name: Graduate Studies
Year: 2012
Subjects: subject: Geophysics
subject: FOS: Earth and related environmental sciences
subject: Converted wave
subject: Imaging
subject: shear velocities
subject: Equivalent offset migration
subject: Migration

description: Prestack migration of converted wave data requires accurate acoustic and shear wave velocities Vp and Vs. This thesis presents new methods to estimate the shear velocities using a single converted wave velocity Vc, that combines Vp and Vs. The acoustic velocity Vp, and a constant value for the Vp/Vs ratio are used to make an initial estimate of the converted wave velocity, Vc. Narrow range gathers are formed using the initial estimate of Vc that are then processed to obtained a refined value of Vc. This refined value is then used to estimate Vs. The estimated Vs is used with Vp in a full prestack migration using the equivalent offset method (EOM) to form complete prestack migration gathers. Velocity analysis of these gathers produces a more accurate Vc which is used to complete the prestack migration. The quality of the method is demonstrated for the cases of one synthetic dataset and two real datasets. The results show superior imaging when compared with alternative migration algorithms.
Which coordinate system for modelling path integration?
Creators: name: Vickerstaff, Robert J.
name: Cheung, Allen
Publisher: name: arXiv
Year: 2012
Subjects: subject: Neurons and Cognition (q-bio.NC)
subject: FOS: Biological sciences

description: Path integration is a navigation strategy widely observed in nature where an animal maintains a running estimate of its location during an excursion. Evidence suggests it is both ancient and ubiquitous in nature. Over the past century or so, canonical and neural network models have flourished, based on a wide range of assumptions, justifications and supporting data. Despite the importance of the phenomenon, consensus and unifying principles appear lacking. A fundamental issue is the neural representation of space needed for biological path integration. This paper presents a scheme to classify path integration systems on the basis of the way the home vector records and updates the spatial relationship between the animal and its home location. Four extended classes of coordinate systems are used to unify and review both canonical and neural network models of path integration, from the arthropod and mammalian literature. This scheme demonstrates analytical equivalence between models which may otherwise appear unrelated, and distinguishes between models which may superficially appear similar. A thorough analysis is carried out of the equational forms of important facets of path integration including updating, steering, searching and systematic errors, using each of the four coordinate systems. The type of available directional cue, namely allothetic or idiothetic, is also considered. It is shown that on balance, the class of home vectors which includes the geocentric Cartesian coordinate system, appears to be the most robust for biological systems. A key conclusion is that deducing computational structure from behavioural data alone will be difficult or impossible, at least in the absence of an analysis of random errors. Consequently it is likely that further theoretical insights into path integration will require an in-depth study of the effect of noise on the four classes of home vectors.
description: 55 pages, 8 figures, 7 tables. Contains one change compared to the published version: the reference to Fuhs & Touretzky (2006) J. Neurosci. has been changed to Burak & Fiete (2009) PLoS Comput. Biol
АНАЛИЗ ФОРМИРОВАНИЯ МОДЕЛИ ГОСУДАРСТВЕННОЙ ПОДДЕРЖКИ СЕВЕРНОГО ДОМАШНЕГО ОЛЕНЕВОДСТВА НА СЕВЕРЕ РОССИИ (НА ПРИМЕРЕ РЕСПУБЛИКИ САХА (ЯКУТИЯ))
Creators: name: Никитина Надежда Николаевна
name: Крылова Акулина Николаевна
name: Протопопова Любовь Даниловна
name: Егорова Ирина Кимовна
name: Даянова Галина Ивановна
Publisher: name: Международный сельскохозяйственный журнал
Year: 2020
Subjects: северное домашнее оленеводство
государственная поддержка
субсидии
модель
поголовье
стабилизация
Республика Саха (Якутия)

description: В статье исследована модель государственной поддержки регионального уровня, основанная на затратном методе, расчетах нормативных затрат в процессе производства и себестоимости продукции при определении и обосновании объемов государственной финансовой поддержки. Целью исследования является выявление основных характеристик государственного регулирования северного домашнего оленеводства (СДО) в Республике Саха (Якутия) (РС (Я)). Современная модель государственной поддержки СДО республики характеризуется применением принципа в организации производства — оленеводческой бригады, мерами стабилизации поголовья. Формирование модели осуществлялось в четыре этапа: первый — 2002-2006 гг., второй — 20072011 гг., третий — 2012-2016 гг., четвертый — 2017 г. по настоящее время. В 2002-2009 гг. рост поголовья оленей РС (Я) происходил в основном по причине сокращения забоя оленей, а не из-за увеличения приплода на 100 маток, то есть не из-за повышения продуктивности. Наблюдаемые положительные изменения в официальных данных по поголовью также можно связать с человеческим фактором, когда в хозяйствах учет поголовья и внесение показателей в формы статистической отчетности осуществляется с учетом мер государственной поддержки. В связи со спецификой системы ведения СДО и поведенческой составляющей оленеводов методы государственной поддержки отрасли в РС (Я) должны меняться в соответствии с этапами развития отрасли и с условиями постоянно меняющейся внешней среды.
Interviewing Ahmed Kathrada: Inspirational!
Creators: name: Arieli, Roni Mikel
Publisher: name: Zenodo
Year: 2016
Subjects: Apartheid, the Diary of Anne Frank, Ahmed Kathrada, Robben Island

description: A blog entry on an interview with Ahmed Kathrada-the anti-apartheid activist who was imprisoned for

 eighteen years on Robben Island- from August 2016.
Robust Eigenvectors of Symmetric Tensors
Creators: name: Muller, Tommi
name: Robeva, Elina
name: Usevich, Konstantin
Publisher: name: arXiv
Year: 2021
Subjects: subject: Numerical Analysis (math.NA)
subject: Algebraic Geometry (math.AG)
subject: Spectral Theory (math.SP)
subject: FOS: Mathematics
subject: 15A69, 15A18, 42C15, 65F15

description: The tensor power method generalizes the matrix power method to higher order arrays, or tensors. Like in the matrix case, the fixed points of the tensor power method are the eigenvectors of the tensor. While every real symmetric matrix has an eigendecomposition, the vectors generating a symmetric decomposition of a real symmetric tensor are not always eigenvectors of the tensor.
 In this paper we show that whenever an eigenvector is a generator of the symmetric decomposition of a symmetric tensor, then (if the order of the tensor is sufficiently high) this eigenvector is robust, i.e., it is an attracting fixed point of the tensor power method. We exhibit new classes of symmetric tensors whose symmetric decomposition consists of eigenvectors. Generalizing orthogonally decomposable tensors, we consider equiangular tight frame decomposable and equiangular set decomposable tensors. Our main result implies that such tensors can be decomposed using the tensor power method.
description: 22 pages, 3 figures
A WISE View of Star Formation in Local Galaxy Clusters
Creators: name: Chung, Sun Mi
name: Eisenhardt, Peter R.
name: Gonzalez, Anthony H.
name: Stanford, Spencer A.
name: Brodwin, Mark
name: Stern, Daniel
name: Jarrett, Thomas
Publisher: name: arXiv
Year: 2011
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We present results from a systematic study of star formation in local galaxy clusters using 22 micron data from the Wide-field Infrared Survey Explorer (WISE). The 69 systems in our sample are drawn from the Cluster Infall Regions Survey (CIRS), and all have robust mass determinations. The all-sky WISE data enables us to quantify the amount of star formation, as traced by 22 micron, as a function of radius well beyond R200, and investigate the dependence of total star formation rate upon cluster mass. We find that the fraction of star-forming galaxies increases with cluster radius but remains below the field value even at 3 R200. We also find that there is no strong correlation between the mass-normalized total specific star formation rate and cluster mass, indicating that the mass of the host cluster does not strongly influence the total star formation rate of cluster members.
description: Accepted for publication in the Astrophysical Journal, 10 pages, 5 figures
How concerns of death affect scientific views : the existential underpinnings of support for intelligent design and discomfort with evolution
Creators: name: Martens, Jason Peter
Publisher: name: University of British Columbia
Year: 2010

description: Intelligent design theory (IDT) has received support from the general public, educators, elected officials, and a minority of scientists, who advocate that it be taught alongside evolutionary theory (ET) in high school science classes. Correspondingly, ET has faced considerable opposition from these groups. Given the tremendous amount of scientific evidence supporting ET and the fact that IDT is inherently unscientific (AAAS, 2006) and lacks any empirical support, it is important to understand the underlying psychological motives that likely influence these views. We tested whether the popularity of IDT and antagonism toward ET might be partially accounted for by IDT’s more existentially satisfying explanation of life’s origins. In four studies, we found that reminders of death in a diverse range of participants increased acceptance of IDT and/or rejection of ET. These effects were reversed among participants who learned that naturalism, which underlies ET but not IDT, can be a source of transcendent meaning (Study 4), and among natural-science-student participants, for whom ET is an existentially meaningful worldview (Study 5). These reversals demonstrate that individuals’ tendency to respond to mortality salience by shifting their scientific beliefs is likely due to a search for transcendent meaning in response to existential threat. Finally, the failure to find effects of mortality salience on acceptance of IDT or ET among a sample of Christian club members (Study 6), who likely already hold an existentially satisfying worldview, is discussed. This research highlights the previously unrecognized factor that is causally related to the formation of scientific beliefs, and indicates when and for whom this factor is most likely to operate.
The Effects of Including Non-Thermal Particles in Flare Loop Models
Creators: name: Reeves, Katharine K.
name: Winter, Henry D.
name: Larson, Natalie L.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: In this work, we use HyLoop (Winter et al. 2011), a loop model that can incorporate the effects of both MHD and non-thermal particle populations, to simulate soft X-ray emissions in various situations. First of all, we test the effect of acceleration location on the emission in several XRT filters by simulating a series of post flare loops with different injection points for the non-thermal particle beams. We use an injection distribution peaked at the loop apex to represent a direct acceleration model, and an injection distribution peaked at the footpoints to represent the Alfén wave interaction model. We find that footpoint injection leads to several early peaks in the apex-tofootpoint emission ratio. Second, we model a loop with cusp-shaped geometry based on the eruptionmodel developed by Lin & Forbes (2000) and Reeves& Forbes (2005a), and find that early in the flare, emission in the loop footpoints is much brighter in the XRT filters if non-thermal particles are included in the calculation. Finally, we employ a multi-loop flare model to simulate thermal emission and compare with a previous model where a semi-circular geometry was used (Reeves et al. 2007). We compare the Geostationary Operational Environmental Satellite (GOES) emission from the two models and find that the cusp-shaped geometry leads to a smaller GOES class flare.
description: 11 pages, 9 figures, invited talk at the Hinode 4 conference
СТРАТЕГИЧЕСКОЕ УПРАВЛЕНИЕ ЭКОНОМИЧЕСКИМ РОСТОМ ЗЕРНОПРОДУКТОВОГО ПОДКОМПЛЕКСА АПК: ОЦЕНКА ЭФФЕКТИВНОСТИ И НАПРАВЛЕНИЯ СОВЕРШЕНСТВОВАНИЯ
Creators: name: Поляков Денис Андреевич
name: Кузичева Наталия Юрьевна
name: Карамнова Наталья Владимировна
Publisher: name: Международный сельскохозяйственный журнал
Year: 2020
Subjects: зернопродуктовый подкомплекс АПК
проблемы развития
стратегическое управление
цели
направления
эффективность
совершенствование

description: Цель исследования состоит в выявлении уровня эффективности стратегического управления в зернопродуктовом подкомплексе АПК. В процессе изучения современного состояния его отраслей были использованы методы экономического исследования, основными из которых явились монографический, анализа и синтеза и расчетно-конструктивный. Обозначены ключевые проблемы стратегического развития зернопродуктового подкомлекса АПК: наличие дегенеративных процессов в воспроизводстве плодородия почв, низкие темпы обновления технических средств производства, дефицит инфраструктуры, отсутствие стабильности при формировании доходов участников производства конечного продукта. Сформулированы основные направления стратегического развития зернопродуктового подкомплекса АПК, охватывающие сферы инфраструктурного обеспечения, обеспечения ценовой стабильности рынка зерна, совершенствования государственного регулирования, межотраслевого взаимодействия на принципах кластеризации в основных зернопроизводящих регионах, расширения рынка сбыта зерна, биотехнологии производства, комплексной цифровизации. Анализ эффективности стратегического управления зернопродуктового подкомплекса АПК в 2016-2018 гг. показал ее стабильную величину через предложенный коэффициент эффективности стратегического управления развитием отрасли, колеблющуюся в пределах 1,04-1,08 в зернопроизводстве и 1,53-1,64 — в зернопереработке. Это отражает планомерность процесса развития, но и различную сложность влияния факторов внешней среды на него. Процесс стратегического управления развитием зернопродуктового подкомплекса АПК может быть усовершенствован в части применения аппарата оценки эффективности его осуществления. Исследование проведено на материалах организаций зернопродуктового подкомплекса АПК Тамбовской области — одного из зернопроизводящих регионов страны.
Designing Tabletop and Surface Applications Using Interactive Prototypes
Creators: name: De Souza Alcantara, Tulio
Publisher: name: Graduate Studies
Year: 2013
Subjects: subject: Computer Science
subject: usabillity
subject: anti-unification
subject: prototype
subject: tabletops

description: Innovative possibilities of interacting with touch-based devices come with the cost of having interaction designers to determine if users consider the interactions natural and easy to use. It is safe to assume that user-centered design helps creating applications that better fit user requirements and one of its steps is prototyping. However, interaction designers sometimes skip the prototyping phase due to time or economic constraints or for a lack of proper tools. In order to help designers of touch-based applications this research presents an approach that allows designers to create their own application-specific hand, finger or tag-based gestures and evaluate these gestures using sketch-based prototypes for touch-based applications without requiring any textual programming. The development of a sketch based prototyping tool followed a user centered design approach with requirements provided by user experience designers from industry. The whole application suite was evaluated to determine its fitness for helping designers of touch-based applications. The evaluation process was conducted in three steps: first, a study with software developers determined the efficacy of the tool to create custom gestures for performing tasks in sketch based prototypes. A follow up evaluation investigated the performance of the tool as a prototyping tool for tangible applications. Finally this thesis reports two cases where this solution helped in the design of real touch-based applications.
КОНЦЕПЦИИ И ПРАКТИКИ СОЦИАЛЬНО ОТВЕТСТВЕННОГО АГРОБИЗНЕСА В РОССИИ И ЗА РУБЕЖОМ
Creators: name: Овчинцева Любовь Александровна
Publisher: name: Международный сельскохозяйственный журнал
Year: 2020
Subjects: социальная ответственность аграрного бизнеса
модель социальной ответственности агробизнеса
зарубежный опыт социальной ответственности
сельское развитие
социальная инфраструктура
агробизнес и сельские сообщества

description: В статье анализируются концепции социально ответственного агробизнеса в России и в зарубежных странах и практики аграрных предприятий, которые позиционируют себя как социально ответственные. Цель исследования — выявление схожих и различающихся практик, анализ приоритетов и мотивов, которыми руководствуются представители бизнеса при реализации концепции социальной ответственности агробизнеса в России и за рубежом. Дан краткий обзор зарубежных и российских исследований социально ответственного бизнеса, подкрепленный анализом данных социологических опросов и статистики о состоянии социальной сферы села, информацией, содержащейся на сайтах сельхозорганизаций. Автор показывает сходство и различие содержания концепций социальной ответственности агробизнеса в России и за рубежом, обосновывает ожидания общества относительно социально ответственного поведения аграрных предприятий, сложившиеся с учетом результатов аграрной реформы в России. В качестве иллюстрации зарубежного опыта приведен краткий обзор результатов социологического опроса немецких производителей аграрной продукции, ранее не переводившийся на русский язык. В выводах автор показывает сходство социально ответственного поведения, основанное на традициях крестьянской благотворительности, указывает на необходимость повышения ответственности российского агробизнеса за сохранение окружающей среды и целесообразность поддержки корпоративной благотворительности.
Bernstein inequality and moderate deviations under strong mixing conditions
Creators: name: Merlevède, Florence
name: Peligrad, Magda
name: Rio, Emmanuel
Publisher: name: arXiv
Year: 2012
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics
subject: 60E15, 60F10, 62G07

description: In this paper we obtain a Bernstein type inequality for a class of weakly dependent and bounded random variables. The proofs lead to a moderate deviations principle for sums of bounded random variables with exponential decay of the strong mixing coeficients that complements the large deviation result obtained by Bryc and Dembo (1998) under superexponential mixing rates.
description: 20 pages
Pinching operators for approximating multiphoton entangled states
Creators: name: Turner, Skylar R.
name: La Cour, Brian R.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We introduce the pinching operator, which extends the theory of squeezing operators to non-Gaussian operators, and use it to approximate $n$-photon entangled states using a pinched vacuum state and pinching tensor of rank $n$. A simple recursion relation is derived for generating the Bogoliubov transformed creation and annihilation operators, which may be used to express the pinched state as a statistically equivalent set of nonlinearly transformed complex Gaussian random variables. Using this representation, we compare low-order approximations of the pinched state to entangled multiphoton Fock states, such as Greenberger-Horne-Zeilinger (GHZ) and W states. Using post-selection and a threshold detector model to represent non-Gaussian measurements, we find that this model is capable of producing states with a fidelity comparable to that of experimentally prepared multiphoton entangled states. Our results show that it is possible to classically simulate large multiphoton entangled states to high fidelity within the constraints of finite detection efficiency.
description: 13 pages, 4 figures