cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
title: Определение инкреторной способности семенников у мужчин, перенесших крипторхизм путем исследования биохимического состава семенной жидкости и тестостерона в сыворотке крови
Creators: name: Чуваков, Геннадий
Publisher: name: Новгородский государственный университет имени Ярослава Мудрого (НовГУ)
Year: 2022

description: Проведено изучение инкреторной функции гонад у 18 здоровых мужчин и у 47 мужчин в возрасте 18–28 лет, которым 10–15 лет тому назад было проведено лечение по поводу крипторхизма. Об инкреторной функции тестикул у здоровых мужчин и у перенесших крипторхизм судили по концентрации фруктозы в сперме, которую определяли по методу Roe в модификации В.И. Чемоданова. У 68 мужчин возраста от 18 до 28 лет, перенесших крипторхизм 10–15 лет тому назад и у 18 здоровых мужчин того же возраста исследовали концентрацию тестостерона в сыворотке крови радиоиммунологическим методом с использованием стандартных тест-наборов фирмы «Cea-Jre-Sorin» (Франция). Выявили, что определение тестостерона в сыворотке крови радиоиммунологическим методом в 2,5 раза чаще выявляет эндокринную недостаточность семенников у мужчин, перенесших крипторхизм в детстве.
Energy-Saving Precoder Design for Narrowband and Wideband Massive MIMO
Creators: name: Peschiera, Emanuele
name: Rottenberg, François
Publisher: name: arXiv
Year: 2023
Subjects: subject: Signal Processing (eess.SP)
subject: Information Theory (cs.IT)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences

description: In this work, we study massive multiple-input multiple-output (MIMO) precoders optimizing power consumption while achieving the users' rate requirements. We first characterize analytically the solutions for narrowband and wideband systems minimizing the power amplifiers (PAs) consumption in low system load, where the per-antenna power constraints are not binding. After, we focus on the asymptotic wideband regime. The power consumed by the whole base station (BS) and the high-load scenario are then also investigated. We obtain simple solutions, and the optimal strategy in the asymptotic case reduces to finding the optimal number of active antennas, relying on known precoders among the active antennas. Numerical results show that large savings in power consumption are achievable in the narrowband system by employing antenna selection, while all antennas need to be activated in the wideband system when considering only the PAs consumption, and this implies lower savings. When considering the overall BS power consumption and a large number of subcarriers, we show that significant savings are achievable in the low-load regime by using a subset of the BS antennas. While optimization based on transmit power pushes to activate all antennas, optimization based on consumed power activates a number of antennas proportional to the load.
description: To appear in IEEE Transactions on Green Communications and Networking
РАСЧЕТНО-ЭКСПЕРИМЕНТАЛЬНЫЕ ИССЛЕДОВАНИЯ ВНУТРЕННИХ НАПРЯЖЕНИЙ В СТРОИТЕЛЬНЫХ МАТЕРИАЛАХ
Creators: name: СОКОЛОВА ЮЛИЯ АНДРЕЕВНА
name: КОНДРАЩЕНКО ВАЛЕРИЙ ИВАНОВИЧ
name: КЕСАРИЙСКИЙ АЛЕКСАНДР ГЕОРГИЕВИЧ
name: МУРАДЯН КАРИНЭ ОВАНЕСОВНА
name: КАЗАКОВ АНДРЕЙ АЛЕКСЕЕВИЧ
Publisher: name: Эксперт: теория и практика
Year: 2020
Subjects: ВНУТРЕННИЕ НАПРЯЖЕНИЯ
КОМПЬЮТЕРНОЕ МОДЕЛИРОВАНИЕ
МЕТОД КОНЕЧНЫХ ЭЛЕМЕНТОВ
СТРОИТЕЛЬНЫЕ МАТЕРИАЛЫ
ЛАЗЕРНАЯ ИНТЕРФЕРОМЕТРИЯ

description: Для определения внутренних напряжений в строительных материалах проведено компьютерное моделирование с применением метода конечных элементов. Дано расчетное обоснование методики, основанной на применении технологии высверливания отверстий в исследуемых образцах. Разработана конечно-элементная модель пористого строительного композита. Исследованы методики формирования внутренних напряжений в расчетном образце. Показано, что применение методов лазерной голографической интерферометрии обеспечивает эффективное определение величины и распределения векторов поля перемещений в области зондирующего отверстия. Для ряда образцов строительных материалов получены экспериментальные данные о распределении деформационных полей, вызванных внутренними напряжениями.The justification of the internal stresses estimation method in construction materials by drilling holes is carried out with the computer simulation. The finite element method is used. A mathematical model of a porous construction composite has been developed. The internal stresses formation methods in the analytical model are investigated. The efficiency of the laser interferometry application for the experimental displacement field determination of the drilled hole’s edge for the internal stresses estimation in the material is shown. Experimental data for different types of building materials were obtained.
Helicity in Proton-Proton Elastic Scattering and the Spin Structure of the Pomeron
Creators: name: Ewerz, Carlo
name: Lebiedowicz, Piotr
name: Nachtmann, Otto
name: Szczurek, Antoni
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We discuss different models for the spin structure of the nonperturbative pomeron: scalar, vector, and rank-2 symmetric tensor. The ratio of single-helicity-flip to helicity-conserving amplitudes in polarised high-energy proton-proton elastic scattering, known as the complex r_5 parameter, is calculated for these models. We compare our results to experimental data from the STAR experiment. We show that the spin-0 (scalar) pomeron model is clearly excluded by the data, while the vector pomeron is inconsistent with the rules of quantum field theory. The tensor pomeron is found to be perfectly consistent with the STAR data.
description: 14 pages
Gravitational waves from cosmic strings associated with pseudo-Nambu-Goldstone dark matter
Creators: name: Qiu, Ze-Yu
name: Yu, Zhao-Huan
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We study stochastic gravitational waves from cosmic strings generated in an ultraviolet-complete model for pseudo-Nambu-Goldstone dark matter with a hidden $\mathrm{U(1)}$ gauge symmetry. The dark matter candidate in this model can naturally evade direct detection bounds and easily satisfy other phenomenological constraints. The bound on the dark matter lifetime implies an ultraviolet scale higher than $10^9~\mathrm{GeV}$. The spontaneous $\mathrm{U(1)}$ symmetry breaking at such a high scale would induce cosmic strings with high tension, resulting in a stochastic gravitational wave background with a high energy density. We investigate the constraints from current gravitational wave experiments as well as the future sensitivity. We find that most viable parameter points can be well studied in future gravitational wave experiments.
description: 24 pages, 6 figures; revisions to match the published version
Diabetes Disposition Index Without Insulin
Creators: name: Ha, Joon
name: Kim, Joon Young
name: Springer, Max
name: Chhabra, Aaryan
name: Chung, Stephanie
name: Sumner, Anne E.
name: Sherman, Arthur
name: Arslanian, Silva
Publisher: name: figshare
Year: 2024
Subjects: classificationCode: 320208
subject: Endocrinology
classificationCode: 319999
subject: Other biological sciences not elsewhere classified
classificationCode: 490102
subject: Biological mathematics

description: Risk of diabetes, especially type 2 diabetes, can be quantified by a disposition index (DI), defined as the product of some measure of insulin sensitivity and some measure of beta-cell function (capacity to secrete insulin). We recently published a new model for estimating insulin sensitivity and beta-cell function: Estimating Insulin Sensitivity and Beta-Cell Function from the Oral Glucose Tolerance Test: Validation of a new Insulin Sensitivity and Secretion (ISS) Model, Am. J. Physiol. (Endocrinol. Metab.), in press [PubMed] [doi].This item contains supplementary material for a follow-up paper in review, tentatively titledA Mathematical Model-Derived Disposition Index Without Insulin Validated in Youth with Obesitythat explores the utility of a new disposition index derived from the ISS model. A noteworthy feature of the new index is that it can be obtained using only glucose data without insulin. This makes it appealing for large-scale clinical studies by reducing cost and patient burden.Items included:Supplementary Online Material (methods and figures).A zip file containing Matlab code to estimate the new disposition index, with or without insulin, and detailed instructions for using it.
Foodrugs: an exploratory mining web application for food – drug interactions
Creators: name: Garranzo, Marco
name: Laguna, Teresa
name: Pérez, David
name: Lacruz, Blanca
name: Espinosa, María Isabel
name: De Molina, Ana Ramirez
name: De Santa Pau, Enrique Carrillo
Publisher: name: F1000 Research Limited
Year: 2022

description: The consumption of supplement foods with an active role to prevent non-communicable diseases have increased during the last years raising concerns over the potential interactions with drugs, particularly in patients undergoing chronic therapy. However, the current knowledge of them in clinical practice has been reported to be unsatisfactory. Therefore, It is required to develop computational tools to exploit the vast information available in dispersed databases about food-drug interactions. We present FOODRUGS, a friendly-user webapp to access and explore putative food-drug interactions. Users can explore transcriptomic relationships between food and drugs through a similarity bipartite network built with 585 food transcriptomic profiles from GEO and the CMAP database for drug profiles. Food and drug nodes are connected by a positive or negative tau score representing the similarity (positive) or dissimilarity (negative) relationship, meaning for a putative similar or opposite mechanism of action. In addition, enrichment analysis to annotate drug compounds for a food node can be performed. Lastly, more than 2.500 scientific documents from Pubmed, drugbank and drugs.com can be consulted after applying NLP techniques to extract relevant food-drug interactions.
Overcoming unbalanced flows problem at a roundabout by use of part-time metering signals
Creators: name: Chang, Stanley H. .
Publisher: name: Monash University
Year: 2022

description: This thesis was scanned from the print manuscript for digital preservation and is copyright the author.
 Researchers can access this thesis by asking their local university, institution or public library to
 make a request on their behalf. Monash staff and postgraduate students can use the link in the References field.
ОБЕСПЕЧЕНИЕ ЭКСПЛУАТАЦИОННЫХ ХАРАКТЕРИСТИК СЕЙФОВЫХ ПОМЕЩЕНИЙ
Creators: name: ТАЛАНТОВА КЛАРА ВАСИЛЬЕВНА
name: МИХЕЕВ НИКОЛАЙ МАТВЕЕВИЧ
Publisher: name: Эксперт: теория и практика
Year: 2020
Subjects: ЗДАНИЯ БАНКОВ
СЕЙФОВЫЕ ПОМЕЩЕНИЯ
КЛАДОВЫЕ ХРАНЕНИЯ ЦЕННОСТЕЙ
УСТОЙЧИВОСТЬ К ВЗЛОМУ
УДАРНАЯ ПРОЧНОСТЬ
СТОЙКОСТЬ К ВОЗДЕЙСТВИЮ ВЗРЫВА И ОГНЯ ПРИ ПОЖАРЕ
СТАЛЕФИБРОБЕТОН

description: В работе рассматриваются вопросы обеспечения эксплуатационных требований, предъявляемых к сейфовым помещения для хранения информации, оружия, наркотиков, в том числе кладовым хранения ценностей банков. Ограждения сейфовых помещений разрабатываются из элементов на основе сталефибробетона. Применение сталефибробетона позволяет создавать элементы конструкций кладовых хранения ценностей заданного класса устойчивости к взлому, в том числе двери. Для автоматизированного проектирования кладовых хранения ценностей в сборно-разборном варианте с несущим каркасом из стальных профилей разрабатывается программа «SAVE». Представленные результаты исследований получены с учётом нормативных требований.The paper considers the issues of ensuring operational requirements for safe rooms for storing information, weapons, drugs, including pantries for storing bank valuables. Fences of safe rooms are developed from ele-ments based on steel fiber concrete. The use of steel fiber concrete allows you to create structural elements of storage rooms for valuables of a given class of resistance to burglary, including doors. For the automated design of pantries for storing valuables in a collapsible version with a supporting frame made of steel profiles, the SAVE program is being developed. The article shows the program algorithm. The research results presented are based on regulatory requirements.
The Bioinfo4Women pilot mentoring programme for young scientists
Creators: name: Sanz, Alba Jene
name: Olfat Khannous-Lleiffe
name: Othmane Hayoun-Mya
name: Sopena-Rios, Maria
name: Codina-Tobías, Mireia
name: Alloza, Eva
name: Àtia Cortés
name: Rementeria, Maria José
Publisher: name: F1000 Research Limited
Year: 2022

description: The Bioinfo4Women programme (B4W) is an initiative that started in 2018 to promote the research done by women in computational biology, and it supports researchers by promoting the exchange of knowledge and experience of outstanding women researchers through activities such as seminars, conferences, training and mentorships. B4W has particular focus on the areas of personalised medicine, bioinformatics and HPC, and ultimately aims at building a more collaborative, supportive, and equal scientific community.

 The B4W International Mentoring Programme for Young Scientists kicked off as a pilot in June 2022 for one year and connects international, accomplished scientists as Mentors with junior researcher Mentees, providing role models for young researchers to help them build their scientific career. It has been designed with a gender equality perspective and with professional support, including the development of the Guidelines of the programme. Criteria for Mentors and Mentees selection were defined and training sessions took place in May and June 2022, with feedback gathered. Such training has been very well received and supports both groups in the planning and implementation of the mentoring sessions, which will be planned at the Mentee’s chosen pace.

 Here, we report on the design and implementation of the pilot mentoring programme and the feedbacks received from the training sessions and initial Mentor-Mentee meetings. The aim is to complete the pilot successfully by May 2023, and set the ground for more ambitious implementations, and expand towards providing guidance to postdoctoral researchers in their transition to independent researcher roles.
ВЛИЯНИЕ ИЗМЕНЕНИЯ КОНЦЕНТРАЦИИ ВОДОРОДА ВО ВРЕМЕНИ НА НДС СФЕРИЧЕСКОЙ ОБОЛОЧКИ ИЗ ТИТАНОВОГО СПЛАВА
Creators: name: ТРЕЩЕВ АЛЕКСАНДР АНАТОЛЬЕВИЧ
name: КУЗНЕЦОВА ВИОЛЕТТА ОЛЕГОВНА
Publisher: name: Эксперт: теория и практика
Year: 2020
Subjects: ПОЛОГАЯ ОБОЛОЧКА
ТИТАНОВЫЙ СПЛАВ
КОНЕЧНЫЕ РАЗНОСТИ
НЕЛИНЕЙНОЕ ДЕФОРМИРОВАНИЕ
ИЗОТРОПНЫЙ МАТЕРИАЛ
БОЛЬШИЕ ПРОГИБЫ

description: В данной статье построена математическая модель, описывающая влияние изменения концентрации водородосодержащей среды на напряжённо-деформированное состояние тонкой пологой сферической оболочки из титанового сплава, нагруженной равномерно-распределённой нагрузкой. Использовалась нелинейная модель, представленная в нормированных пространствах напряжений. Прогибы оболочки приняты большими, закрепление жёсткое. Разработан алгоритм решения проблемы наводороживания оболочек из титанового сплава. Практическое решение производилось двухшаговым методом последовательных возмущений параметров с использованием пакетов прикладных программ MatLab и Maple. Для решения системы разрешающих дифференциальных уравнений применён метод конечных разностей. Произведено сравнение полученных результатов с результатами классической теории и теории И.Г. Овчинникова.In this article, a mathematical model is constructed that describes the effect of changing the concentration of a hydrogen-containing medium on the stress-strain state of a thin flat spherical shell made of titanium alloy loaded with a uniformly distributed load. A nonlinear model presented in normalized stress spaces was used. The deflections of the shell are assumed to be large, and the fixing is rigid. An algorithm for solving the problem of hydrogenation of titanium alloy shells has been developed. The practical solution was made by a two-step method of successive parameter perturbations using MatLab and Maple application software packages. The finite difference method is used to solve the system of resolving differential equations. The obtained results are compared with the results of the classical theory and the theory of I.G. Ovchinnikov.
ПРОДУКТИВНОСТЬ И СОСТАВ ТРАВОСТОЕВ ПАСТБИЩНОГО ИСПОЛЬЗОВАНИЯ В УСЛОВИЯХ ЕВРОПЕЙСКОГО СЕВЕРА РОССИИ
Creators: name: Прядильщикова, Елена
Publisher: name: figshare
Year: 2022
Subjects: Agriculture, land and farm management not elsewhere classified

description: В научной работе представлены результаты 2017–2021 гг., полученные на опытном поле СЗНИИМЛПХ в Вологодской области, по вопросам влияния целенаправленно подобранных видов и сортов злаковых и бобовых трав, дополняющих фестулолиум и райграс, на продуктивность и ботанический состав агрофитоценозов Европейского Севера РФ.
Oscillatory deviations from Matthiessen's rule due to interacting dislocations
Creators: name: Fu, Chu-Liang
name: Li, Mingda
Publisher: name: arXiv
Year: 2016
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We theoretically examine the validity of Matthiessen's rule caused by strong dislocation-dislocation interaction using a fully quantized dislocation field, where its degree of deviation is quantified at arbitrary electron energy, dislocation-electron and dislocation-dislocation distances and interaction strengths. Contrary to intuition, we show that the electron relaxation rate deviates from the Matthiessen's rule in an oscillatory way as a function of inter-dislocation distance, instead of monotonically. This study could serve as a computational tool to investigate the electronic behavior of a highly-dislocated system at a full quantum field theoretical level.
description: 9 pages, 5 figures
МОДЕЛИРОВАНИЕ ПРОЦЕССА ВОЗВЕДЕНИЯ ВЫСОТНОГО КАРКАСНО-МОНОЛИТНОГО ЗДАНИЯ
Creators: name: УТКИНА ВЕРА НИКОЛАЕВНА
name: БЕЗРУКОВА ЕВГЕНИЯ СЕРГЕЕВНА
Publisher: name: Эксперт: теория и практика
Year: 2020
Subjects: ВЫСОТНОЕ КАРКАСНО-МОНОЛИТНОЕ ЗДАНИЕ
УЧЕТ ПОЭТАПНОСТИ ВОЗВЕДЕНИЯ
НАПРЯЖЕННО-ДЕФОРМИРОВАННОЕ СОСТОЯНИЕ КОНСТРУКЦИЙ
РЕЗУЛЬТАТЫ МКЭ-РАСЧЕТА
HIGH-RISE FRAME-MONOLITHIC BUILDING
TAKING INTO ACCOUNT THE STAGES OF CONSTRUCTION
STRESSSTRAIN STATE OF STRUCTURES
RESULTS OF THE FEM-CALCULATION

description: В статье рассматривается проблема учета последовательности возведения высотного здания. Выполнено моделирование процесса возведения и расчет высотного каркасно-монолитного здания гостиницы методом конечных элементов в ПК МОНОМАХ-САПР. Приведены результаты расчета конструкций.The article deals with the problem of accounting for the sequence of a high-rise building. Modeling of the construction process and calculation of a high-rise frame-monolithic hotel using the finite element method in the PC MONOMAKH-CAD is performed. The results of the calculation of structures are presented.
Schloss Dagstuhl - Jahresbericht / Annual Report 2017
Creators: name: Schloss Dagstuhl-Leibniz-Zentrum Für Informatik,
Publisher: name: Schloss Dagstuhl - Leibniz-Zentrum fuer Informatik GmbH, Wadern/Saarbruecken, Germany
Year: 2018
Subjects: subject: Computer Science
subject: 000 Computer science, knowledge, general works

description: Schloss Dagstuhl -- Leibniz-Zentrum fuer Informatik setzt sich zum Ziel, Informatikforschung auf Weltklasseniveau zu unterstuetzen und Wissenschaftsseminare zu beherbergen, in denen neue Ideen untersucht und Probleme diskutiert werden, um Grundsteine für neue Entwicklungen in der Informatik zu legen. Der Jahresbericht 2017 gibt einen detaillierten Ueberblick ueber das wissenschaftliche Programm und weiterer Aktivititaeten des Jahres 2017. Schloss Dagstuhl -- Leibniz-Zentrum fuer Informatik promotes world-class research in informatics and hosts research seminars in which new ideas are showcased, problems discussed, and the course set for future development in a specific field of informatics. This annual report provides a detailed overview of the scientific program, activities, and overall work of the center in 2017.
Dynamic dependence to domain wall propagation through artificial spin ice
Creators: name: Burn, D. M.
name: Chadha, M.
name: Branford, W. R.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Domain wall propagation dynamics have been studied in nanostructured artificial kagome spin ice structures. A stripline circuit has been used to provide localised pulsed magnetic fields within the artificial spin ice structure. This provides control of the system through electrically assisted domain wall nucleation events. Synchronisation of the pulsed fields with additional global magnetic fields and the use of a focussed magneto-optical Kerr effect magnetometer allows our experiments to probe the domain wall transit through an extended ASI structure. We find that the propagation distance depends on the driving field revealing field driven properties of domain walls below their intrinsic nucleation field.
MPEC 2023-Q03 : DAILY ORBIT UPDATE (2023 August 16)
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2023
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469

description: The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements.  They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
Nesting-driven antiferromagnetic order in Kondo lattice CePd5Al2
Creators: name: Zhang, Chen
name: Yuan, Ya-Hua
name: Song, Jiao-Jiao
name: Rusz, Jan
name: Zhao, Yin-Zou
name: Wu, Qi-Yi
name: Duan, Yu-Xia
name: Sassa, Yasmine
name: Tjernberg, Oscar
name: Mansson, Martin
name: Bemtsen, Magnus H.
name: Tobash, P. H.
name: Bauer, Eric D.
name: Oppeneer, Peter M.
name: Durakiewicz, Tomasz
name: Meng, Jian-Qiao
Publisher: name: arXiv
Year: 2023
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We investigated the electronic structure of the antiferromagnetic Kondo lattice CePd5Al2 using high-resolution angle-resolved photoemission spectroscopy. The experimentally determined band structure of the conduction electrons is predominated by the Pd 4d character. It contains multiple hole and electron Fermi pockets, in good agreement with density functional theory calculations. The Fermi surface is folded over Q0 = (0, 0, 1), manifested by Fermi surface reconstruction and band folding. Our results suggest that Fermi surface nesting drives the formation of antiferromagnetic order in CePd5Al2.
description: 6 pages,3 figure
title:  The Influence of Nursing Experience and Education on Nurses Inferences of Patients' Suffering
Creators: name: Coots, Patricia A.
Publisher: name: Old Dominion University Libraries
Year: 1988

description: A primary dimension of nursing is caring tor patients who suffer. This study examined the inferences made about patients' suffering oy 65 registered nurses employed in acute care health facilities. Utilizing The standard Measure of Inferences of Suffering Questionnaire. the purpose of the study was to explore the influence of nursing education and experience on the degree of pain and psychological distress inferred by the nurses. Analysis of Covariance was used to test for group differences on the basis of nursing education when number of months of nursing experience was controlled. Although nursing education did not influence nurses' inferences of patients· suffering. Pearson correlations revealed an inverse relationship between the amount of experience and the degree of inferred suffering, such that as the amount of nursing experience increased. the degree of inferred suffering decreased. Further research exploring different variables involved in perception and subsequent inferences of patients' suffering is recommended.
Concepts Toward Efficient Back-Contact Perovskite Solar Cells
Creators: name: ZHAO, BOYA
Publisher: name: Monash University
Year: 2023
Subjects: Photovoltaic devices (solar cells)
Crystallography
Nanofabrication, growth and self assembly

description: This thesis provides effective strategies to improve the power conversion efficiency of back-contact perovskite solar cells. It offers new understandings of the perovskite materials and the device physics in back-contact perovskite solar cells.
Neutron stars in the light of SKA: Data, statistics, and science
Creators: name: Arjunwadkar, Mihir
name: Kashikar, Akanksha
name: Bagchi, Manjari
Publisher: name: arXiv
Year: 2016
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Applications (stat.AP)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: The Square Kilometre Array (SKA), when it becomes functional, is expected to enrich neutron star (NS) catalogues by at least an order of magnitude over their current state. This includes the discovery of new NS objects leading to better sampling of under-represented NS categories, precision measurements of intrinsic properties such as spin period and magnetic field, as also data on related phenomena such as microstructure, nulling, glitching, etc. This will present a unique opportunity to seek answers to interesting and fundamental questions about the extreme physics underlying these exotic objects in the universe. In this paper, we first present a meta-analysis (from a methodological viewpoint) of statistical analyses performed using existing NS data, with a two-fold goal: First, this should bring out how statistical models and methods are shaped and dictated by the science problem being addressed. Second, it is hoped that these analyses will provide useful starting points for deeper analyses involving richer data from SKA whenever it becomes available. We also describe a few other areas of NS science which we believe will benefit from SKA which are of interest to the Indian NS community.
description: To appear in Journal of Astrophysics and Astronomy (JOAA) special issue on "Science with the SKA: an Indian perspective"
Structure and phase transformations in a zirconia-calcia alloy
Creators: name: Lin, Miao.
Publisher: name: Monash University
Year: 2022

description: This thesis was scanned from the print manuscript for digital preservation and is copyright the author.
 Researchers can access this thesis by asking their local university, institution or public library to
 make a request on their behalf. Monash staff and postgraduate students can use the link in the References field.
title: АТМОСФЕРА БЕЛОРУССКИХ ПЛОЩАДЕЙ
Creators: name: Протасова, Юлия
Publisher: name: Новгородский государственный университет имени Ярослава Мудрого (НовГУ)
Year: 2022

description: В статье рассматривается проблема пустоты городских площадей. Автор стремится проследить процесс формирования, использования и реконструкции площадей Беларуси. Статья раскрывает содержание понятия «атмосфера общественных пространств». Исходя из этого анализируются площади Беларуси от момента возникновения до нашего времени.
Liouville soliton surfaces obtained using Darboux transformations
Creators: name: Mancas, S. C.
name: Acharya, K. R.
name: Rosu, H. C.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: In this paper, Liouville soliton surfaces based on some soliton solutions of the Liouville equation are constructed and displayed graphically, including some of those corresponding to Darboux-transformed counterparts. We find that the Liouville soliton surfaces are centroaffine surfaces of Tzitzeica type and their centroaffine invariant can be expressed in terms of the Hamiltonian. The traveling wave solutions to Liouville equation from which these soliton surfaces stem are also obtained through a modified variation of parameters method which is shown to lead to elliptic functions solution method.
description: 11 pages, 5 figures, 21 references, matches published version
Statistical analysis of acoustic wave parameters near active regions
Creators: name: Soares, M. Cristina Rabello
name: Bogart, Richard S.
name: Scherrer, Philip H.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: In order to quantify the influence of magnetic fields on acoustic mode parameters and flows in and around active regions, we analyse the differences in the parameters in magnetically quiet regions nearby an active region (which we call `nearby regions'), compared with those of quiet regions at the same disc locations for which there are no neighboring active regions. We also compare the mode parameters in active regions with those in comparably located quiet regions. Our analysis is based on ring diagram analysis of all active regions observed by HMI during almost five years. We find that the frequency at which the mode amplitude changes from attenuation to amplification in the quiet nearby regions is around 4.2 mHz, in contrast to the active regions, for which it is about 5.1 mHz. This amplitude enhancement (the `acoustic halo effect') is as large as that observed in the active regions, and has a very weak dependence on the wave propagation direction. The mode energy difference in nearby regions also changes from a deficit to an excess at around 4.2 mHz, but averages to zero over all modes. The frequency difference in nearby regions increases with increasing frequency until a point at which the frequency shifts turn over sharply as in active regions. However, this turnover occurs around 4.9 mHz, significantly below the acoustic cutoff frequency. Inverting the horizontal flow parameters in the direction of the neighboring active regions, we find flows that are consistent with a model of the thermal energy flow being blocked directly below the active region.
description: accepted in ApJ
magnetoARPES: Angle Resolved Photoemission Spectroscopy with Magnetic Field Control
Creators: name: Ryu, Sae Hee
name: Reichenbach, Garett
name: Jozwiak, Chris M.
name: Bostwick, Aaron
name: Richter, Peter
name: Seyller, Thomas
name: Rotenberg, Eli
Publisher: name: arXiv
Year: 2023
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Angle-Resolved Photoemission Spectroscopy (ARPES) is a premier technique for understanding the electronic excitations in conductive, crystalline matter, in which the induced photocurrent is collected and dispersed in energy and angle of emission to reveal the energy- and momentum-dependent single particle spectral function $A(\mathbf{k},ω)$. So far, ARPES in a magnetic field has been precluded due to the need to preserve the electron paths between the sample and detector. In this paper we report progress towards "magnetoARPES", a variant of ARPES that can be conducted in a magnetic field. It is achieved by applying a microscopic probe beam ($\lesssim$ 10 $μ$m ) to a thinned sample mounted upon a special sample holder that generates magnetic field confined to a thin layer near the sample surface. In this geometry we could produce ARPES in magnetic fields up to around $\pm$ 100 mT. The magnetic fields can be varied from purely in-plane to nearly purely out-of-plane, by scanning the probe beam across different parts of the device. We present experimental and simulated data for graphene to explore the aberrations induced by the magnetic field. These results demonstrate the viability of the magnetoARPES technique for exploring symmetry breaking effects in weak magnetic fields.
description: 21 pages, 6 figures
The Stability of Tidal Equilibrium for Hierarchical Star-Planet-Moon Systems
Creators: name: Adams, Fred C.
name: Bloch, Anthony M.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: Motivated by the current search for exomoons, this paper considers the stability of tidal equilibrium for hierarchical three-body systems containing a star, a planet, and a moon. In this treatment, the energy and angular momentum budgets include contributions from the planetary orbit, lunar orbit, stellar spin, planetary spin, and lunar spin. The goal is to determine the optimized energy state of the system subject to the constraint of constant angular momentum. Due to the lack of a closed form solution for the full three-body problem, however, we must use use an approximate description of the orbits. We first consider the Keplerian limit and find that the critical energy states are saddle points, rather than minima, so that these hierarchical systems have no stable tidal equilibrium states. We then generalize the calculation so that the lunar orbit is described by a time-averaged version of the circular restricted three-body problem. In this latter case, the critical energy state is a shallow minimum, so that a tidal equilibrium state exists. In both cases, however, the lunar orbit for the critical point lies outside the boundary (roughly half the Hill radius) where (previous) numerical simulations indicate dynamical instability. These results suggest that star-planet-moon systems have no viable long-term stable states analogous to those found for two-body systems.
description: 17 pages, 4 figures, accepted to MNRAS
Neutrino Constraints and the ATOMKI X17 Anomaly
Creators: name: Denton, Peter B.
name: Gehrlein, Julia
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Recent data from the ATOMKI group continues to confirm their claim of the existence of a new $\sim17$ MeV particle. We review and numerically analyze the data and then put into context constraints from other experiments, notably neutrino scattering experiments such as the latest reactor anti-neutrino coherent elastic neutrino nucleus scattering data and unitarity constraints from solar neutrino observations. We show that minimal scenarios are disfavored and discuss the model requirements to evade these constraints.
description: 11 pages, 4 figures, comments welcome! v2: analysis expanded, results similar, matches published version
Holographic complexity of Jackiw-Teitelboim gravity from Karch-Randall braneworld
Creators: name: Bhattacharya, Aranya
name: Bhattacharyya, Arpan
name: Patra, Ayan K.
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Recently, it has been argued in [1] that Jackiw-Teitelboim (JT) gravity can be naturally realized in the Karch-Randall braneworld in $(2+1)$ dimensions. Using the `complexity=volume' proposal, we studied this model and computed the holographic complexity of the JT gravity from the bulk perspective. We find that the complexity grows linearly with boundary time at late times, and the leading order contribution is proportional to the $φ_0$, similar to the answer found in [2]. However, in addition, we find subleading corrections to the complexity solely arising from the fluctuations of these Karch-Randall branes.
description: 20 pages, 3 figures, v2: references added, minor changes, accepted for publication in JHEP
Properties and microstructure of barium titanate doped with zirconia
Creators: name: Xu, Jing.
Publisher: name: Monash University
Year: 2022

description: This thesis was scanned from the print manuscript for digital preservation and is copyright the author.
 Researchers can access this thesis by asking their local university, institution or public library to
 make a request on their behalf. Monash staff and postgraduate students can use the link in the References field.
Machine learning modeling of the atomic structure and physical properties of alkali and alkaline-earth aluminosilicate glasses and melts
Creators: name: Losq, Charles Le
name: Baldoni, Barbara
Publisher: name: arXiv
Year: 2023
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: The first version of the machine learning greybox model i-Melt was trained to predict latent and observed properties of K$_2$O-Na$_2$O-Al$_2$O$_3$-SiO$_2$ melts and glasses. Here, we extend the model compositional range, which now allows accurate predictions of properties for glass-forming melts in the CaO-MgO-K$_2$O-Na$_2$O-Al$_2$O$_3$-SiO$_2$ system, including melt viscosity (accuracy equal or better than 0.4 log$_{10}$ Pa$\cdot$s in the 10$^{-1}$-10$^{15}$ log$_{10}$ Pa$\cdot$s range), configurational entropy at glass transition ($\leq$ 1 J mol$^{-1}$ K$^{-1}$), liquidus ($\leq$ 60 K) and glass transition ($\leq$ 16 K) temperatures, heat capacity ($\leq$ 3 \%) as well as glass density ($\leq$ 0.02 g cm$^{-3}$), optical refractive index ($\leq$ 0.006), Abbe number ($\leq$ 4), elastic modulus ($\leq$ 6 GPa), coefficient of thermal expansion ($\leq$ 1.1 10$^{-6}$ K$^{-1}$) and Raman spectra ($\leq$ 25 \%). Uncertainties on predictions also are now provided. The model offers new possibilities to explore how melt/glass properties change with composition and atomic structure.
description: Accepted version. Changes were made following reviews. New figures (4, 5, 6) were added. Text in section 3.1 has been modified accordingly. Figures 7 and 8 were improved. Small modifications of the text were made to correct typos, to add references or to clarify the text. Two lines were added in Table 1 to document errors on glass transition temperature and entropy
Machine learning method for $^{12}$C event classification and reconstruction in the active target time-projection chamber
Creators: name: Wu, Huangkai
name: Wang, Youjing
name: Wang, Yumiao
name: Deng, Xiangai
name: Cao, Xiguang
name: Fang, Deqing
name: Ma, Weihu
name: Wang, Hongwei
name: He, Wanbing
name: Fu, Changbo
name: Ma, Yugang
Publisher: name: arXiv
Year: 2023
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: Active target time projection chambers are important tools in low energy radioactive ion beams or gamma rays related researches. In this work, we present the application of machine learning methods to the analysis of data obtained from an active target time projection chamber. Specifically, we investigate the effectiveness of Visual Geometry Group (VGG) and the Residual neural Network (ResNet) models for event classification and reconstruction in decays from the excited $2^+_2$ state in $^{12}$C Hoyle rotation band. The results show that machine learning methods are effective in identifying $^{12}$C events from the background noise, with ResNet-34 achieving an impressive precision of 0.99 on simulation data, and the best performing event reconstruction model ResNet-18 providing an energy resolution of $σ_E<77$ keV and an angular reconstruction deviation of $σ_θ<0.1$ rad. The promising results suggest that the ResNet model trained on Monte Carlo samples could be used for future classifying and predicting experimental data in active target time projection chambers related experiments.
description: 9 pages, 10 figures, 9 tables
Variational Bayes Made Easy
Creators: name: Khan, Mohammad Emtiyaz
Publisher: name: arXiv
Year: 2023
Subjects: subject: Machine Learning (cs.LG)
subject: Artificial Intelligence (cs.AI)
subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences

description: Variational Bayes is a popular method for approximate inference but its derivation can be cumbersome. To simplify the process, we give a 3-step recipe to identify the posterior form by explicitly looking for linearity with respect to expectations of well-known distributions. We can then directly write the update by simply ``reading-off'' the terms in front of those expectations. The recipe makes the derivation easier, faster, shorter, and more general.
Self-assembly and biophysical properties of archaeal lipids
Creators: name: Bhattacharya, Ahanjit
Publisher: name: Stanford Digital Repository
Year: 2024
Subjects: subject: Archaea
subject: Lipids
subject: Self-assembly (Chemistry)
subject: Evolution (Biology)

description: Archaea constitute one of the three fundamental domains of life. Archaea possess unique lipids in their cell membranes which distinguish them from bacteria and eukaryotes. This difference in lipid composition is referred to as ‘Lipid Divide’ and its origins remain elusive. Chemical inertness and the highly branched nature of the archaeal lipids afford the membranes stability against extremes of temperature, pH, and salinity. Based on the molecular architecture, archaeal polar lipids are of two types — monopolar and bipolar. Both monopolar and bipolar lipids have been shown to form vesicles and other well defined membrane architectures. Bipolar archaeal lipids are among the most unique
lipids found in nature because of their membrane-spanning nature and mechanical stability. The majority of the self-assembly studies on archaeal lipids have been carried out using crude polar lipid extracts or molecular mimics. The complexity of the archaeal lipids makes them challenging to synthesize chemically, and as a result, studies on pure
lipids are few. There is an ongoing effort to develop simplified routes to synthesize complex archaeal lipids to facilitate diverse biophysical studies and pharmaceutical applications. Investigation on archaeal lipids may help us understand how life survives in extreme conditions and therefore unlock some of the mysteries surrounding the origins of cellular life.
Quasiparticle interference from different impurities on the surface of pyrochlore iridates: signatures of the Weyl phase
Creators: name: Lambert, F.
name: Schnyder, A. P.
name: Moessner, R.
name: Eremin, I.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Weyl semimetals are gapless three-dimensional topological materials where two bands touch at an even number of points in the bulk Brillouin zone. These semimetals exhibit topologically protected surface Fermi arcs, which pairwise connect the projected bulk band touchings in the surface Brillouin zone. Here, we analyze the quasiparticle interference patterns of the Weyl phase when time-reversal symmetry is explicitly broken. We use a multi-band $d$-electron Hubbard Hamiltonian on a pyrochlore lattice, relevant for the pyrochlore iridate R$_2$Ir$_2$O$_7$ (where R is a rare earth). Using exact diagonalization, we compute the surface spectrum and quasiparticle interference (QPI) patterns for various surface terminations and impurities. We show that the spin and orbital texture of the surface states can be inferred from the absence of certain backscattering processes and from the symmetries of the QPI features for non-magnetic and magnetic impurities. Furthermore, we show that the QPI patterns of the Weyl phase in pyrochlore iridates may exhibit additional interesting features that go beyond those found previously in TaAs.
description: 15 pages, 16 figures
title: ГОРОДСКАЯ КУЛЬТУРА В СОСТАВЕ ВИЗУАЛЬНОГО КОДА СОЦИАЛЬНЫХ СЕТЕЙ
Creators: name: Рыжкова, Ольга
Publisher: name: Новгородский государственный университет имени Ярослава Мудрого (НовГУ)
Year: 2022

description: В статье рассматривается феномен социальной сети «ВКонтакте», служащей не только средством коммуникации, но и способом визуального проявления локальной идентичности. Анализ неформального образа города, отличающегося от рекламно-туристического формата, может стать эффективным инструментом изучения городской среды.
Regular Compact Objects with Scalar Hair
Creators: name: Karakasis, Thanasis
name: Mavromatos, Nick E.
name: Papantonopoulos, Eleftherios
Publisher: name: arXiv
Year: 2023
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We discuss exact regular compact object solutions in higher dimensional extensions of General Relativity sourced by a phantom scalar field in arbitrary $D$ spacetime dimensions ($D>2$), for which a central singularity is absent. We follow a bottom-up approach, by means of which, by imposing the desired form of the solution to the metric function, we derive the form of the self-interaction scalar potential, which in general appears to depend on both the scalar-hair charge and the black-hole mass. We discuss in this context the validity of the first law of thermodynamics in such systems. Consistency requires the independence of the potential of the mass, imposing in this way the dependence of the mass on the scalar charge of a type that varies with the value of $D$, and according to the no-hair theorem dressing the regular black hole solution with secondary hair. In $D=3,4$ we demonstrate that the potential depends on the ratio of the scalar charge over the mass, and thus considered as a parameter of the theory. This feature, however, does not characterise higher-dimensional cases. Calculating the $D-$dimensional Kretschmann scalar we show that it is finite at the centre point $r=0$ for arbitrary $D$, rendering the solutions regular. The phantom matter content of the theory is also regular at $r=0$, hence the radial coordinate of our manifold is defined for $r \ge 0$. We explicitly discuss the cases of $D=3,4,5,6,10$, and demonstrate that we can have regular, asymptotically flat, black holes with secondary scalar hair.
description: Minor changes, explicit expressions for the energy conditions added for D=4, version accepted for publication in PRD
Evaluating the Accuracy of a Novel Artificial Intelligence Based Symptom Checker: A Clinical Vignettes Study : results document
Creators: name: Hammoud, Mohammad
name: Douglas, Shahd
name: Darmach, Mohamad
name: Alawneh, Sara
name: Sanyal, Swapnendu
name: Kanbour, Youssef
Publisher: name: figshare
Year: 2022
Subjects: Other biomedical and clinical sciences not elsewhere classified

description: Evaluating the Accuracy of a Novel Artificial Intelligence Based Symptom Checker: A Clinical Vignettes Study - results document
Anisotropies of Gravitational Wave Backgrounds: A Line Of Sight Approach
Creators: name: Contaldi, Carlo R.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In the weak field regime, gravitational waves can be considered as being made up of collisionless, relativistic tensor modes that travel along null geodesics of the perturbed background metric. We work in this geometric optics picture to calculate the anisotropies in gravitational wave backgrounds resulting from astrophysical and cosmological sources. Our formalism yields expressions for the angular power spectrum of the anisotropies. We show how the anisotropies are sourced by intrinsic, Doppler, Sachs-Wolfe, and Integrated Sachs-Wolfe terms in analogy with Cosmic Microwave Background photons.
The use of an axially loaded tube as a monitoring device on a rock bolt
Creators: name: Brown, Glenn Murray.
Publisher: name: Monash University
Year: 2022

description: This thesis was scanned from the print manuscript for digital preservation and is copyright the author.
 Researchers can access this thesis by asking their local university, institution or public library to
 make a request on their behalf. Monash staff and postgraduate students can use the link in the References field.