cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Характеристика питания и пищевого статуса рабочих различных промышленных предприятий Свердловской области
Creators: name: Мажаева Т. В.
name: Дубенко С. Э.
name: Погожева А. В.
name: Хотимченко С. А.
Publisher: name: Вопросы питания
Year: 2018
Subjects: ожирение
метаболические нарушения
питание рабочих
пищевой статус

description: Нарушение структуры питания приводит к изменениям пищевого статуса, что способствует развитию неинфекционных заболеваний, которые составляют более половины причин смертей населения нашей страны. Немаловажным фактором возникновения метаболических нарушений и сердечно-сосудистых заболеваний являются неблагоприятные условия трудовой деятельности. Целью совместных исследований, проведенных на базе 2 центров здорового питания (в Екатеринбурге и Москве), стала оценка питания и пищевого статуса у рабочих 2 промышленных предприятий Свердловской области. В исследование были включены 347 рабочих предприятия по получению черновой меди (№ 1) и 267 рабочих предприятия по добыче железорудного сырья (№ 2) (средний возраст – соответственно 45,7±0,4 и 50,4±0,6 года). В программу обследования рабочих входило изучение фактического питания частотным методом, антропометрических показателей, показателей состава тела (биоимпедансометрия), биомаркеров пищевого статуса (биохимические показатели крови). Рацион питания рабочих отличался высокой энергетической ценностью (свыше 2500 ккал/сут) с избытком общих и насыщенных жиров (40,7–41,0 и 15,2–15,3% по калорийности) и монои дисахаридов (19,0–21,0% по калорийности). Рабочие предприятия по добыче железорудного сырья потребляли значительно меньше витамина С (на 78%, р<0,01) и витамина А (на 27%, р<0,05), чем рабочие предприятия по получению черновой меди. 28,5% рабочих имели высокие (>1,0) значения отношения обхвата талии к обхвату бедер. Ожирение (индекс массы тела >25,0 кг/см2) было выявлено у 36–42% рабочих, избыток жировой массы – у 81%. У 28 и 35% обследованных 1-го и 2-го предприятий определялись повышенные концентрации липопротеинов низкой плотности в сыворотке крови. Метаболический синдром был выявлен у 27,0% рабочих 1-го предприятия и у 44,2% рабочих 2-го предприятия, а заболевания сердечно-сосудистой системы – соответственно у 25,9 и 56,5%. Показано влияние генетических факторов (rs9939609 гена FTO и Trp64Arg гена ADRB3) на развитие ожирения и метаболических нарушений.
ALMA Observations of Infalling Flows toward the Keplerian Disk around the Class I Protostar L1489 IRS
Creators: name: Yen, Hsi-Wei
name: Takakuwa, Shigehisa
name: Ohashi, Nagayoshi
name: Aikawa, Yuri
name: Aso, Yusuke
name: Koyamatsu, Shin
name: Machida, Masahiro N.
name: Saigo, Kazuya
name: Saito, Masao
name: Tomida, Kengo
name: Tomisaka, Kohji
Publisher: name: arXiv
Year: 2014
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We have conducted ALMA observations in the 1.3 mm continuum and 12CO (2-1), C18O (2-1) and SO (5_6-4_5) lines toward L1489 IRS, a Class I protostar surrounded by a Keplerian disk and an infalling envelope. The Keplerian disk is clearly identified in the 12CO and C18O emission, and its outer radius (~700 AU) and mass (~0.005 Msun) are comparable to those of disks around T Tauri stars. The protostellar mass is estimated to be 1.6 Msun with the inclination angle of 66 deg. In addition to the Keplerian disk, there are blueshifted and redshifted off-axis protrusions seen in the C18O emission pointing toward the north and the south, respectively, adjunct to the middle part of the Keplerian disk. The shape and kinematics of these protrusions can be interpreted as streams of infalling flows with a conserved angular momentum following parabolic trajectories toward the Keplerian disk, and the mass infalling rate is estimated to be ~5E-7 Msun/yr. The specific angular momentum of the infalling flows (~2.5E-3 km/s*pc) is comparable to that at the outer radius of the Keplerian disk (~4.8E-3 km/s*pc). The SO emission is elongated along the disk major axis and exhibits a linear velocity gradient along the axis, which is interpreted as that the SO emission primarily traces a ring region in the flared Keplerian disk at radii of ~250-390 AU. The local enhancement of the SO abundance in the ring region can be due to the accretion shocks at the centrifugal radius where the infalling flows fall onto the disk. Our ALMA observations unveiled both the Keplerian disk and the infalling gas onto the disk, and the disk can further grow by accreting material and angular momenta from the infalling gas.
description: 42 pages, 16 figures, 1 tables, Accepted by ApJ
The leader-second dyad : how complementarity and status impact collective performance
Creators: name: Dow, Benjamin John
Publisher: name: The University of Texas at Austin
Year: 2019
Subjects: Leadership
Personality
Second-in-command

description: Although leadership is one of the most well-studied topics in management, the role of the second-in-command (second) on teams and in organizations has been left largely unexplored. The handful of prior investigations into seconds have only examined the impact of their presence or absence in organizations. The investigation conducted here is among the first to explore how the characteristics of leader-second dyads influence the performance of the units they lead. A review of the limited literature on seconds, as well as a related literature on pooled leadership, suggests that the degree of similarity or difference between leaders and seconds can influence the dyad’s effectiveness. However, prior research provides little insight into the types of differences that are important or the nature of the relationship between particular leader-second differences and effectiveness. Both for this reason, and because leader-second dyads are a largely unexplored phenomenon, I conducted a series of interviews with leaders and seconds. The results of this qualitative investigation focus attention on the constructs of personality, expertise, and status distance. To confirm and elaborate on these findings I conducted an archival study of leaders and seconds at the top of large firms, where they are typically the CEO and COO of the organization. I find that leader-second differences in extraversion and openness improve collective performance, however, differences in agreeableness harm it. I also find that status distance moderates these effects such that lower distance makes the effects of personality differences more positive. The hypothesized effects of differences in expertise were not supported. These results suggest that characteristics of leader-second dyads, such as personality differences and status distance, have an impact on performance of the people these dyad lead.
Signature of the time-dependent hydrodynamic interactions on the collective diffusion in colloidal monolayers
Creators: name: Domínguez, Alvaro
Publisher: name: arXiv
Year: 2014
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: It has been shown recently that the coefficient of collective diffusion in a colloidal monolayer is divergent due to the hydrodynamic interactions mediated by the ambient fluid in bulk. The analysis is extended to allow for time--dependent hydrodynamic interactions. Novel observational features specific to this time dependency are predicted. The possible experimental detection in the dynamics of the monolayer is discussed.
description: 14 pages, 6 figures
title: Plastics in soil description and surveys – practical considerations and field guide
Creators: name: Weber, Collin Joel
Publisher: name: Frontiers
Year: 2022

description: A growing evidence base has shown that plastics are widely distributed in soils and could have negative effects on soil functions. However, within international standards for soil description, plastics are handled so far as one part of humanmade artefacts. With the ongoing plastic crisis, such a simple classification may no longer be sufficient to provide a satisfactory description of plastics in soils. Based on the latest research on plastics in soils, these foreign components can no longer be understood as relevant only for soils in urban, industrial, traffic, mining and military areas. This perspective therefore aims to suggest a possible approach towards a future and more comprehensive description of plastics in soil characterization. Based on the existing definitions within the international soil description standards, a description concept and a corresponding field guide are proposed. The proposed approach comprises a recent definition of plastics and guidelines for the description of visible plastic residues in soils during field work. Classification approaches are developed for plastics abundance and distribution as well as plastic characteristics. Furthermore, pitfalls during the description, as well as during the extraction of plastics from soils in the field, and further limitations are discussed. Basic soil description during soil surveys or soil mapping, are a strong tool of soil science to derive environmental data sets. The perspective and the field guide presented in this paper are intended to change this circumstance and enable soil scientists to describe plastic residues in soils simple, comparable and adapted to existing standards in future.
Особенности питания пожилых пациентов со съемными стоматологическими ортопедическими конструкциями
Creators: name: Меликян И. А.
name: Ахмедов Г. Д.
name: Гуревич К. Г.
name: Ханферьян Р. А.
name: Бургасова О. А.
name: Никитюк Д. Б.
name: Заборова В. А.
Publisher: name: Вопросы питания
Year: 2018
Subjects: питание
пожилые
стоматологические ортопедические конструкции

description: Цель исследования – изучение особенностей питания пожилых пациентов со съемными стоматологическими ортопедическими конструкциями. Обследованы 1388 пациентов в возрасте от 60 до 75 лет, обратившихся в городскую стоматологическую поликлинику. Пациенты были разделены на 3 группы: 1-я группа – лица, имеющие только несъемные стоматологические ортопедические конструкции (n=419); 2-я группа – лица, имеющие хотя бы одну частично съемную стоматологическую ортопедическую конструкцию и не имеющие полносъемных ортопедических конструкций (n=512); 3-я группа – лица, имеющие хотя бы одну полносъемную стоматологическую ортопедическую конструкцию (n=457). Пациентов опрашивали об особенностях питания. Проводили антропометрические исследования. По сравнению с 1-й и 2-й группами среди пациентов 3-й группы в 2,2 и 1,3 раза больше лиц, у которых одновременно увеличены обхват талии и отношение обхвата талии и бедер (p=0,0013). Лица 3-й группы существенно реже употребляли цельное мясо по сравнению с пациентами 1-й и 2-й групп. Аналогичная тенденция отмечалась и в отношении мясных продуктов, овощей и фруктов (p<0,05). По сравнению с пациентами 1-й и 2-й групп пациенты 3-й группы чаще употребляли злаки, картофель, рис, макаронные изделия, а также соусы, майонезы, маргарины. Все обследованные пациенты пожилого возраста редко употребляли рыбу и морепродукты (76,0–89,9% потребляли 1 раз в месяц и реже).
Singular versus boundary arcs for aircraft trajectory optimization in climbing phase
Creators: name: Cots, Olivier
name: Gergaud, Joseph
name: Goubinat, Damien
name: Wembe, Boris
Publisher: name: arXiv
Year: 2022
Subjects: subject: Optimization and Control (math.OC)
subject: FOS: Mathematics

description: In this article, we are interested in optimal aircraft trajectories in climbing phase. We consider the cost index criterion which is a convex combination of the time-to-climb and the fuel consumption. We assume that the thrust is constant and we control the flight path angle of the aircraft. This optimization problem is modeled as a Mayer optimal control problem with a single-input affine dynamics in the control and with two pure state constraints, limiting the Calibrated AirSpeed (CAS) and the Mach speed. The candidates as minimizers are selected among a set of extremals given by the maximum principle. We first analyze the minimum time-to-climb problem with respect to the bounds of the state constraints, combining small time analysis, indirect multiple shooting and homotopy methods with monitoring. This investigation emphasizes two strategies: the common CAS/Mach procedure in aeronautics and the classical Bang-Singular-Bang policy in control theory. We then compare these two procedures for the cost index criterion.
A Comparative Evaluation of Interventions Against Misinformation: Augmenting the WHO Checklist
Creators: name: Heuer, Hendrik
name: Glassman, Elena Leah
Publisher: name: arXiv
Year: 2022
Subjects: subject: Human-Computer Interaction (cs.HC)
subject: Computers and Society (cs.CY)
subject: FOS: Computer and information sciences

description: During the COVID-19 pandemic, the World Health Organization provided a checklist to help people distinguish between accurate and misinformation. In controlled experiments in the United States and Germany, we investigated the utility of this ordered checklist and designed an interactive version to lower the cost of acting on checklist items. Across interventions, we observe non-trivial differences in participants' performance in distinguishing accurate and misinformation between the two countries and discuss some possible reasons that may predict the future helpfulness of the checklist in different environments. The checklist item that provides source labels was most frequently followed and was considered most helpful. Based on our empirical findings, we recommend practitioners focus on providing source labels rather than interventions that support readers performing their own fact-checks, even though this recommendation may be influenced by the WHO's chosen order. We discuss the complexity of providing such source labels and provide design recommendations.
description: Published at CHI '22, Conference on Human Factors in Computing Systems, April 29-May 5, 2022, New Orleans, LA, USA
Self-modulated laser wakefields driven by a CO₂ laser
Creators: name: Welch, James Roland
Publisher: name: The University of Texas at Austin
Year: 2019
Subjects: Self-modulated laser wakefields
Laser-plasma acceleration
Laser wakefields
Electron acceleration

description: Long-wavelength lasers are being explored for use in multi-stage laser wakefield accelerators with the eventual goal of creating a TeV-scale lepton collider. We use a high-power, ultrafast CO₂ laser (5 J, 4 ps, 10.6 μm) to generate self-modulated laser wakefields in a hydrogen gas jet, the first such experiment in this regime to our knowledge. Collective Thomson scattering (CTS) co-propagating probes were used to measure the plasma density in the gas jet and estimate the wakefield amplitudes. The measured wakefield have similar amplitudes to previous self-modulated laser wakefield experiments which measured accelerated electrons. The effects of gas jet geometry on the measured wavelength shift of the CTS probes were explored in depth, demonstrating a complex interplay of self-focusing and divergence effects based on the local plasma density and the pulse power.
Ionization and scintillation of nuclear recoils in gaseous xenon
Creators: name: Renner, J.
name: Gehman, V. M.
name: Goldschmidt, A.
name: Matis, H. S.
name: Miller, T.
name: Nakajima, Y.
name: Nygren, D.
name: Oliveira, C. A. B.
name: Shuman, D.
name: Álvarez, V.
name: Borges, F. I. G.
name: Cárcel, S.
name: Castel, J.
name: Cebrián, S.
name: Cervera, A.
name: Conde, C. A. N.
name: Dafni, T.
name: Dias, T. H. V. T.
name: Díaz, J.
name: Esteve, R.
name: Evtoukhovitch, P.
name: Fernandes, L. M. P.
name: Ferrario, P.
name: Ferreira, A. L.
name: Freitas, E. D. C.
name: Gil, A.
name: Gómez, H.
name: Gómez-Cadenas, J. J.
name: González-Díaz, D.
name: Gutiérrez, R. M.
name: Hauptman, J.
name: Morata, J. A. Hernando
name: Herrera, D. C.
name: Iguaz, F. J.
name: Irastorza, I. G.
name: Jinete, M. A.
name: Labarga, L.
name: Laing, A.
name: Liubarsky, I.
name: Lopes, J. A. M.
name: Lorca, D.
name: Losada, M.
name: Luzón, G.
name: Marí, A.
name: Martín-Albo, J.
name: Martínez, A.
name: Moiseenko, A.
name: Monrabal, F.
name: Monserrate, M.
name: Monteiro, C. M. B.
name: Mora, F. J.
name: Moutinho, L. M.
name: Vidal, J. Muñoz
name: da Luz, H. Natal
name: Navarro, G.
name: Nebot-Guinot, M.
name: Palma, R.
name: Pérez, J.
name: Aparicio, J. L. Pérez
name: Ripoll, L.
name: Rodríguez, A.
name: Rodríguez, J.
name: Santos, F. P.
name: Santos, J. M. F. dos
name: Seguí, L.
name: Serra, L.
name: Simón, A.
name: Sofka, C.
name: Sorel, M.
name: Toledo, J. F.
name: Tomás, A.
name: Torrent, J.
name: Tsamalaidze, Z.
name: Veloso, J. F. C. A.
name: Villar, J. A.
name: Webb, R. C.
name: White, J.
name: Yahlali, N.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: High Energy Physics - Experiment (hep-ex)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: Ionization and scintillation produced by nuclear recoils in gaseous xenon at approximately 14 bar have been simultaneously observed in an electroluminescent time projection chamber. Neutrons from radioisotope $α$-Be neutron sources were used to induce xenon nuclear recoils, and the observed recoil spectra were compared to a detailed Monte Carlo employing estimated ionization and scintillation yields for nuclear recoils. The ability to discriminate between electronic and nuclear recoils using the ratio of ionization to primary scintillation is demonstrated. These results encourage further investigation on the use of xenon in the gas phase as a detector medium in dark matter direct detection experiments.
description: 15 pages, 14 figures
Supplementary document for Transition from Ince–Gaussian Beams to Nondiffractive Mathieu Beams - 7168512.pdf
Creators: name: BHARGAVA, Swati
name: Tschernig, Konrad
name: Guacaneme, David
name: Bandres, Miguel
Publisher: name: Optica Publishing Group
Year: 2024
Subjects: Uncategorized

description: Supplemental Material
Interfaces, Strings, and a Soft Mode in the Square Lattice Quantum Dimer Model
Creators: name: Banerjee, D.
name: Bögli, M.
name: Hofmann, C. P.
name: Jiang, F. -J.
name: Widmer, P.
name: Wiese, U. -J.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: The quantum dimer model on the square lattice is equivalent to a $U(1)$ gauge theory. Quantum Monte Carlo calculations reveal that, for values of the Rokhsar-Kivelson (RK) coupling $λ< 1$, the theory exists in a confining columnar phase. The interfaces separating distinct columnar phases display plaquette order, which, however, is not realized as a bulk phase. Static "electric" charges are confined by flux tubes that consist of multiple strands, each carrying a fractionalized flux $\frac{1}{4}$. A soft pseudo-Goldstone mode emerges around $λ\approx 0$, long before one reaches the RK point at $λ= 1$.
description: 5 pages, 12 figures
title: Autogenous Eutrophication, Anthropogenic Eutrophication, and Climate Change: Insights from the Antrift Reservoir (Hesse, Germany)
Creators: name: Weber, Collin Joel
name: Weihrauch, Christoph
Publisher: name: MDPI
Year: 2022

description: Climate change is projected to aggravate water quality impairment and to endanger drinking water supply. The effects of global warming on water quality must be understood better to develop targeted mitigation strategies. We conducted water and sediment analyses in the eutrophicated Antrift catchment (Hesse, Germany) in the uncommonly warm years 2018/2019 to take an empirical look into the future under climate change conditions. In our study, algae blooms persisted long into autumn 2018 (November), and started early in spring 2019 (April). We found excessive phosphorus (P) concentrations throughout the year. At high flow in winter, P desorption from sediments fostered high P concentrations in the surface waters. We lead this back to the natural catchment-specific geochemical constraints of sediment P reactions (dilution- and pH-driven). Under natural conditions, the temporal dynamics of these constraints most likely led to high P concentrations, but probably did not cause algae blooms. Since the construction of a dammed reservoir, frequent algae blooms with sporadic fish kills have been occurring. Thus, management should focus less on reducing catchment P concentrations, but on counteracting summerly dissolved oxygen (DO) depletion in the reservoir. Particular attention should be paid to the monitoring and control of sediment P concentrations, especially under climate change.
More chips off of Asteroid (4) Vesta: characterization of eight Vestoids and their HED meteorite analogs
Creators: name: Hardersen, Paul S.
name: Reddy, Vishnu
name: Roberts, Rachel
name: Mainzer, Amy
Publisher: name: arXiv
Year: 2014
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: This work reports high quality NIR spectra, and their respective interpretations, for eight Vp type asteroids, as defined by Carvano et al. (2010), that were observed at the NASA Infrared Telescope Facility on January 14, 2013 UT. They include (3867) Shiretoko, (5235) Jean-Loup, (5560) Amytis, (6331) 1992 FZ1, (6976) Kanatsu, (17469) 1991 BT, (29796) 1999 CW77, and (30872) 1992 EM17. All eight asteroids exhibit the broad 0.9 and 1.9 micron mineral absorption features indicative of pyroxene on each asteroid's surface. Data reduction and analysis via multiple techniques produced consistent results for the derived spectral absorption band centers and average pyroxene surface chemistries for all eight asteroids (Reddy et al., 2012; Lindsay et al., 2013,2014; Gaffey et al., 2002; Burbine et al., 2009). (3867) Shiretoko is most consistent with the eucrite meteorites while the remaining seven asteroids are most consistent with the howardite meteorites. The existing evidence suggests that all eight of these Vp type asteroids are genetic Vestoids that probably originated from Vesta's surface.
description: 52 pages, 5 figures, 5 tables
Оценка питания, состава тела и особенности диетологического консультирования пациенток с функциональной гипоталамической аменореей
Creators: name: Москвичева Ю. Б.
name: Гусев Д. В.
name: Табеева Г. И.
name: Чернуха Г. Е.
Publisher: name: Вопросы питания
Year: 2018
Subjects: энергетический баланс
менструальный цикл
аменорея
питание
лептин
жировая ткань

description: Проведены анализ данных фактического питания, антропометрия, оценка нарушений пищевого поведения, количества жировой ткани и уровня лептина у 48 пациенток с функциональной гипоталамической аменореей (ФГА). Изучение фактического питания выявило несоответствие калорийности питания уровню энерготрат у 50% пациенток, недостаточность суточного потребления углеводов у 91,7%, повышенное потребление белка у 70,8% пациенток. У исследуемой группы обнаружено нарушение рекомендуемого соотношения белков, жиров, углеводов (1:1:0,3). Отмечено, что дефицит жировой ткани и снижение концентрации лептина в сыворотке крови наблюдались не только у пациенток с низким индексом массы тела, но и у 70% женщин с его нормальными значениями. При помощи опросника Eating Disorder Inventory 2 (EDI-2) выявлено, что желание похудеть имели 54,2%, неудовлетворенность своим телом – 22,9% пациенток. Полученные данные можно рассматривать как обоснование комплексного подхода к ведению пациенток с ФГА, которое предусматривает консультацию гинеколога, психотерапевта и диетолога.
On the evolution of oxidative etching of few layer graphene (FLG) in FLG /TiO$_2$ nanocomposites. Interfacial dipole signature and chemical shift in C1s X-ray photoemission spectra
Creators: name: Marouazi, Hamza El
name: Keller, Valérie
name: Janowska, Izabela
Publisher: name: arXiv
Year: 2022
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We present the effect of oxidative etching in FLG/TiO$_2$ hybrids on FLG edges chemistry/morphology addressing also the catalytic activity of TiO$_2$ NPs. According to the XPS and TGA analysis the oxidation degree strongly depends on TiO$_2$:FLG ratio. The preparation of two series of FLG/TiO$_2$ hybrids via sol-gel method and in-situ oxidation permitted to correctly describe and distinguish the chemical composition, core shift and charge distribution in C1s XPS with Tip peak as reference. Such analysis is challenging in carbon materials due the overlapping of C1s peaks from the sample and adventitious carbon reference. We claim the formation of interfacial dipole as possible direct signature of charge transfer from TiO$_2$ to FLG. A downward shift of C1s (sp$^2$C) up to 1.4 eV is measured and contributions of non sp$^2$C are determined in the composites. The modifications related to the oxidation are supported by TEM/SEM observations, and referred to non-catalytic oxidation and oxidation in mechanically mixed components. KEYWORDS: oxidative etching, graphene edges, TiO$_2$ catalyst, interfacial dipole, XPS, charge transfer
Silent Flocks
Creators: name: Cavagna, Andrea
name: Giardina, Irene
name: Grigera, Tomas S.
name: Jelic, Asja
name: Levine, Dov
name: Ramaswamy, Sriram
name: Viale, Massimiliano
Publisher: name: arXiv
Year: 2014
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Soft Condensed Matter (cond-mat.soft)
subject: Biological Physics (physics.bio-ph)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: Experiments find coherent information transfer through biological groups on length and time scales distinctly below those on which asymptotically correct hydrodynamic theories apply. We present here a new continuum theory of collective motion coupling the velocity and density fields of Toner and Tu to the inertial spin field recently introduced to describe information propagation in natural flocks of birds. The long-wavelength limit of the new equations reproduces Toner-Tu theory, while at shorter wavelengths (or, equivalently, smaller damping), spin fluctuations dominate over density fluctuations and second sound propagation of the kind observed in real flocks emerges. We study the dispersion relation of the new theory and find that when the speed of second sound is large, a gap sharply separates first from second sound modes. This gap implies the existence of `silent' flocks, namely medium-sized systems across which neither first nor second sound can propagate.
SUSY structures, representations and Peter-Weyl theorem for $S^{1|1}$
Creators: name: Carmeli, C.
name: Fioresi, R.
name: Kwok, S. D.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Representation Theory (math.RT)
subject: Mathematical Physics (math-ph)
subject: Rings and Algebras (math.RA)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: The real compact supergroup $S^{1|1}$ is analized from different perspectives and its representation theory is studied. We prove it is the only (up to isomorphism) supergroup, which is a real form of $({\mathbf C}^{1|1})^\times$ with reduced Lie group $S^1$, and a link with SUSY structures on ${\mathbf C}^{1|1}$ is established. We describe a large family of complex semisimple representations of $S^{1|1}$ and we show that any $S^{1|1}$-representation whose weights are all nonzero is a direct sum of members of our family. We also compute the matrix elements of the members of this family and we give a proof of the Peter-Weyl theorem for $S^{1|1}$.
Relationships between the behavioral dynamics of fish spawning aggregations and reproductive resilience
Creators: name: Biggs, Christopher
name: 0000-0003-3978-2786
Publisher: name: The University of Texas at Austin
Year: 2019
Subjects: Marine fisheries
Bioacoustics
Hydrophones
Gulf of Mexico, Spotted seatrout
Fisheries management

description: In the context of reproductive resilience, the dynamics of phenotypically plastic spawning behaviors are shaped by the environmental and anthropogenic stressors that a species is exposed to. Spawning locations, timing, and periodicity are three characteristics that are progressively being recognized as important aspects of productivity and resilience in fish species. The chapters of this dissertation examine those factors as they are filtered through the ecological contexts of the environment, life history traits and fisheries exploitation. The following research covers spatio-temporal scales from a species and site-specific study of spawning behavior to a multi-species, regional study of spawning behavior and the interactions with fisheries. Chapters two and three illustrate how reproductive resilience is realized in species that spawn frequently across spatially diverse locations. These reproductive traits have evolved to maintain reproductive success and population stability in response to the unpredictable and highly variable environments the species inhabit. Chapter four investigates the use of passive acoustic techniques to locate and monitor spawning in species that produce sound during the spawning process. That study seeks to resolve the spatial resolution of passive acoustic sampling and monitoring in shallow estuarine environments. Chapter five provides further support for including spawning behaviors in the study of productivity and resilience in fish populations by showing that species that aggregate to spawn, along with large changes in density, for short and predictable time periods, are the most vulnerable to targeted fishing and are more likely to have been historically overfished. This work builds on the concept and framework of reproductive resilience in fish and provides both theoretical support and empirical evidence for further consideration of the spatial and temporal components of spawning in stock assessments, climate variability assessments and the conservation of fish populations
A high quality, efficiently coupled microwave cavity for trapping cold molecules
Creators: name: Dunseith, D. P.
name: Truppe, S.
name: Hendricks, R. J.
name: Sauer, B. E.
name: Hinds, E. A.
name: Tarbutt, M. R.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: We characterize a Fabry-Perot microwave cavity designed for trapping atoms and molecules at the antinode of a microwave field. The cavity is fed from a waveguide through a small coupling hole. Focussing on the compact resonant modes of the cavity, we measure how the electric field profile, the cavity quality factor, and the coupling efficiency, depend on the radius of the coupling hole. We measure how the quality factor depends on the temperature of the mirrors in the range from 77 to 293K. The presence of the coupling hole slightly changes the profile of the mode, leading to increased diffraction losses around the edges of the mirrors and a small reduction in quality factor. We find the hole size that maximizes the intra-cavity electric field. We develop an analytical theory of the aperture-coupled cavity that agrees well with our measurements, with small deviations due to enhanced diffraction losses. We find excellent agreement between our measurements and finite-difference time-domain simulations of the cavity.
description: 16 pages, 8 figures
Reverberation Measurements of the Inner Radius of the Dust Torus in 17 Seyfert Galaxies
Creators: name: Koshida, S.
name: Minezaki, T.
name: Yoshii, Y.
name: Kobayashi, Y.
name: Sakata, Y.
name: Sugawara, S.
name: Enya, K.
name: Suganuma, M.
name: Tomita, H.
name: Aoki, T.
name: Peterson, B. A.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present the results of a dust reverberation survey for 17 nearby Seyfert 1 galaxies, which provides the largest homogeneous data collection for the radius of the innermost dust torus. A delayed response of the K-band light curve after the V-band light curve was found for all targets, and 49 measurements of lag times between the flux variation of the dust emission in the K band and that of the optical continuum emission in the V band were obtained. The lag times strongly correlated with the optical luminosity in the luminosity range of M_V=-16 to -22 mag, and the regression analysis was performed to obtain the correlation log $Δt$ (days) = -2.11 -0.2 M_V assuming $Δt \propto L^{0.5}$, which was theoretically expected. We discuss the possible origins of the intrinsic scatter of the dust lag-luminosity correlation, which was estimated to be about 0.13 dex, and we find that the difference of internal extinction and delayed response of changes in lag times to the flux variations could have partly contributed to intrinsic scatter. However, we could not detect any systematic change of the correlation with the subclass of the Seyfert type or the Eddington ratio. Finally, we compare the dust reverberation radius with the near-infrared interferometric radius of the dust torus and the reverberation radius of broad Balmer emission lines. The interferometric radius in the K band was found to be systematically larger than the dust reverberation radius in the same band by about a factor of two, which could be interpreted by the difference between the flux-weighted radius and the response-weighted radius of the innermost dust torus. The reverberation radius of the broad Balmer emission lines was found to be systematically smaller than the dust reverberation radius by about a factor of 4-5, which strongly supports the unified scheme of the Seyfert type of active galactic nuclei. (Abridged)
description: 38 pages, 15 figures, 9 tables; ApJ in press
Direct observation of topological surface state in the topological superconductor 2M-WS2
Creators: name: Cho, Soohyun
name: Huh, Soonsang
name: Fang, Yuqiang
name: Hua, Chenqiang
name: Bai, Hua
name: Jiang, Zhicheng
name: Liu, Zhengtai
name: Liu, Jishan
name: Chen, Zhenhua
name: Fukushima, Yuto
name: Harasawa, Ayumi
name: Kawaguchi, Kaishu
name: Shin, Shik
name: Kondo, Takeshi
name: Lu, Yunhao
name: Mu, Gang
name: Huang, Fuqiang
name: Shen, Dawei
Publisher: name: arXiv
Year: 2022
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: The quantum spin Hall (QSH) effect has attracted extensive research interest because of the potential applications in spintronics and quantum computing, which is attributable to two conducting edge channels with opposite spin polarization and the quantized electronic conductance of 2e2/h. Recently, 2M-WS2, a new stable phase of transition metal dichalcogenides with a 2M structure showing an identical layer configuration to that of the monolayer 1T' TMDs, was suggested to be a QSH insulator as well as a superconductor with critical transition temperature around 8 K. Here, high-resolution angle-resolved photoemission spectroscopy (ARPES) and spin-resolved ARPES are applied to investigate the electronic and spin structure of the topological surface states (TSS) in the superconducting 2M-WS2. The TSS exhibits characteristic spin-momentum-locking behavior, suggesting the existence of long-sought nontrivial Z2 topological states therein. We expect that 2M-WS2 with co-existing superconductivity and TSS might host the promising Majorana bound states.
Disentangling the nuclear shape coexistence in even-even Hg isotopes using the interacting boson model
Creators: name: García-Ramos, J. E.
name: Heyde, K.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We intend to provide a consistent description of the even-even Hg isotopes, 172-200Hg, using the interacting boson model including configuration mixing. We pay special attention to the description of the shape of the nuclei and to its connection with the shape coexistence phenomenon.
description: To appear in CGS15 conference proceedings (EPJ Web of Conferences)
Promoting Open Access in Research-Performing Organizations: Spheres of Activity, Challenges, and Future Action Areas
Creators: name: Pampel, Heinz
Publisher: name: Humboldt-Universität zu Berlin
Year: 2023
Subjects: subject: open access
subject: research-performing organizations
subject: universities
subject: science policy
subject: open science
subject: libraries
subject: 020 Bibliotheks- und Informationswissenschaften
subject: 070 Dokumentarische Medien, publizistische Medien, Unterrichtsmedien; Journalismus; Verlagswesen

description: Open access (OA) has become a critical issue in science policy and affects a wide range of activities in universities and research labs. Research-performing organizations (RPOs), defined as publicly funded universities and research institutions, face significant challenges in shaping the OA transformation. This article examines the spheres of activity available to RPOs for shaping the OA transformation, using a categorization of 22 spheres of activity related to OA. These spheres of activity include strategy and communication, services and infrastructures, business relationships with publishers, and collaborations. Current challenges and future action areas in promoting OA are also described, providing support for RPOs in handling OA and highlighting key issues. The categorization can serve as a tool for systematically assessing OA activities at RPOs and shows that OA is a cross-cutting issue in these organizations. Collaboration on OA activities, both within and beyond organizations, presents a challenge. To effectively promote OA, it is crucial to strengthen the interaction between funding agencies and RPOs. Libraries are critical stakeholders, playing a vital role in advancing OA at the local, national, and international levels in partnership with RPO management and other partners in faculty, administration, and information technology.
Applying digital tools in the Latin classroom
Creators: name: Bouzigard, Gabrielle Teresa
Publisher: name: The University of Texas at Austin
Year: 2019
Subjects: subject: Comprehensible Input
subject: Second language acquisition
subject: Digital divide
subject: Latin pedagogy
subject: Latin language--Study and teaching
subject: Latin language--Study and teaching--Audio-visual aids
subject: Educational technology
subject: Second language acquisition

description: The study of Latin is facing a crisis in the form of declining class enrollment. This report examines research in second language acquisition to identify potential reasons for such declines and propose fruitful avenues for Latinists to meet the challenges facing their classrooms. Latin’s history and continued perception as an elitist discipline merits a new and contrasting emphasis on student identity and motivation. I show that, among other familiar challenges, Latinists must acknowledge that there is a digital divide among students; discrepancies in both access to and usage of online and digital tools creates disadvantages for some students in a globalized economic market. In light of the benefits of blending digital and in person instruction, and informed by Stephen Krashen’s influential ‘input hypothesis’, I present a catalogue of online tools that can be integrated into a Latin class and provide suggestions for using these resources in a classroom that utilizes Comprehensible Input.
ULTRASPEC: a high-speed imaging photometer on the 2.4-m Thai National Telescope
Creators: name: Dhillon, V. S.
name: Marsh, T. R.
name: Atkinson, D. C.
name: Bezawada, N.
name: Bours, M. C. P.
name: Copperwheat, C. M.
name: Gamble, T.
name: Hardy, L. K.
name: Hickman, R. D. H.
name: Irawati, P.
name: Ives, D. J.
name: Kerry, P.
name: Leckngam, A.
name: Littlefair, S. P.
name: McLay, S. A.
name: O'Brien, K.
name: Peacocke, P. T.
name: Poshyachinda, S.
name: Richichi, A.
name: Soonthornthum, B.
name: Vick, A.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: ULTRASPEC is a high-speed imaging photometer mounted permanently at one of the Nasmyth focii of the 2.4-m Thai National Telescope (TNT) on Doi Inthanon, Thailand's highest mountain. ULTRASPEC employs a 1024x1024 pixel frame-transfer, electron-multiplying CCD (EMCCD) in conjunction with re-imaging optics to image a field of 7.7'x7.7' at (windowed) frame rates of up to ~200 Hz. The EMCCD has two outputs - a normal output that provides a readout noise of 2.3 e- and an avalanche output that can provide essentially zero readout noise. A six-position filter wheel enables narrow-band and broad-band imaging over the wavelength range 330-1000 nm. The instrument saw first light on the TNT in November 2013 and will be used to study rapid variability in the Universe. In this paper we describe the scientific motivation behind ULTRASPEC, present an outline of its design and report on its measured performance on the TNT.
description: 14 pages, 10 figures, 3 tables, accepted for publication in MNRAS
Meridional flow velocities on solar-like stars with known activity cycles
Creators: name: Baklanova, Dilyara
name: Plachinda, Sergei
Publisher: name: arXiv
Year: 2014
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The direct measurements of the meridional flow velocities on stars are impossible today. To evaluate the meridional flow velocities on solar-like stars with stable activity periods, we supposed that during the stellar Hale cycle the matter on surfaces of stars passes the meridional way equivalent to $2πR_\star$. We present here the dependence of the mean meridional flow velocity on Rossby number, which is an effective parameter of the stellar magnetic dynamo.
description: Accepted for publication in Advances in Space Research
Free loop spaces, Koszul duality, and shifted Poisson geometry
Creators: name: Riedel, Rustam Darius
Publisher: name: The University of Texas at Austin
Year: 2019
Subjects: Derived algebraic geometry
Algebraic geometry
Poisson geometry
Free loop spaces
Koszul duality

description: This thesis describes [the] action on the Koszul dual ∞-category in terms of the shifted Poisson structure on T [superscript *] X[2]: The main result is that the action is the exponential of the Poisson bracket
title: Using ⁸⁷Sr/⁸⁶Sr Ratios to Date Fossil Methane Seep Deposits: Methodological Requirements and an Example from the Great Valley Group, California
Creators: name: Kiel, Steffen
name: Hansen, Christian
name: Nitzsche, Kai Nils
name: Hansen, Bent T.
Publisher: name: University of Chicago Press
Year: 2022

description: Methane seep carbonates preserve information about the history of methane seepage and of the fauna inhabiting these ecosystems. For this information to be useful, a reliable determination of the carbonates’ stratigraphic ages is required, but this is not always available. Here we investigate the using strontium isotope stratigraphy to date fossil methane seep carbonates via detailed petrographic and geochemical investigation of the different carbonate phases in biostratigraphically well-dated seep carbonates of Paleozoic, Mesozoic, and Cenozoic age. The best results are obtained from banded, botryoidal rim cements from carbonate phases showing a weak or no cathodoluminescence signal, an oxygen isotope signature close to that of seawater, and the lowest Mn concentrations. We then applied the method to a presumably late Jurassic seep carbonate from the Great Valley Group in California. Strontium isotope ratios of the least diagenetically altered carbonate phases indicate a Tithonian (late Jurassic) age for this seep site, which is in conflict with a recent study that suggested the absence of Jurassic strata from the Great Valley Group.
Raman spectra and electron-phonon coupling in disordered graphene with gate-tunable doping
Creators: name: Childres, Isaac
name: Jauregui, Luis A.
name: Chen, Yong P.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We report a Raman spectroscopy study of graphene field-effect transistors (GFET) with a controlled amount of defects introduced in graphene by exposure to electron-beam irradiation. Raman spectra are taken at T = 8 K over a range of back gate voltages (Vg) for various irradiation dosages (Re). We study effects in the Raman spectra due to Vg-induced doping and artificially created disorder at various Re. With moderate disorder (irradiation), the Raman G peak with respect to the graphene carrier density (nFE) exhibits a minimum in peak frequency and a maximum in peak width near the charge- neutral point (CNP). These trends are similar to those seen in previous works on pristine graphene and have been attributed to a reduction of electron-phonon coupling strength (D) and removal of the Kohn anomaly as the Fermi level moves away from the CNP. We also observe a maximum in I2D/IG and weak maximum in ID/IG near the CNP. All the observed dependences of Raman parameters on nFE weaken at stronger disorder (higher Re), implying that disorder causes a reduction of D as well. Our findings are valuable for understanding Raman spectra and electron-phonon physics in doped and disordered graphene.
description: 16 pages, 5 figures
Eliciting impact of nano-clay reinforcement and processing schemes on polyurethane chain dynamics by gold sputtering patterns (GSPs)
Creators: name: Babar, Mohammad
name: Verma, Gaurav
Publisher: name: Taylor & Francis
Year: 2023
Subjects: Biophysics
Biochemistry
Physical Sciences not elsewhere classified
Cell Biology
Chemical Sciences not elsewhere classified

description: This article narrates how processing “bias” affects polymer chain dynamics due to variable 2D-nanofiller interfaces. Importance of this biasing can be assessed by the significant improvement in thermal and mechanical properties we have recently published for polyurethane-2D clay nanocomposite coatings. We intricately look at the nanoscale structure and subsequent interface formation between 2D clay and PU chains to understand the changes in morphology. Polyurethane (PU) chain dynamics was observed through the gold (Au) sputtered patterns in field emission electron microscopy (FESEM) images. These were fitted with circles and our findings confirm the presence of an attractive interface between PU and 2D nanoclay. Circle fitting elicits important data like the critical area (Ac) and critical relative frequency (fc) which are used to evaluate the polymer chain dynamics and morphology. We find that fc is related to circularity, and reinforcing nanoclay to the PU matrix enhances fc by 4.6% and 6.9% with simultaneous use of ultrasonic bath and high shear homogenizer. This is further correlated with the already established methods of small angle X-Ray scattering (SAXS) and Fourier transform infrared (FTIR) spectroscopy to generate a fresh perspective on interfacial interactions in PU-2D clay nanocomposites. Circle fitting treatment FESEM images of polyurethane (PU) nanocomposites. Difference in the gold sputtering patterns (GSPs) of PU on the surface of nanoclay (below) can be clearly observed as compared to the GSPs of bare PU (above). 1 wt% C30B-PU nanocomposite coatings were prepared using 3 processing schemes.FESEM images revealed gold sputtered patterns from the differently processed samples.Circle fitting analysis on GSPs helped in understanding the polymer nanofiller interface.Growth conformation of polymer chains in and around the 2D nanofiller provides fresh perspective into polymer chain dynamics. 1 wt% C30B-PU nanocomposite coatings were prepared using 3 processing schemes. FESEM images revealed gold sputtered patterns from the differently processed samples. Circle fitting analysis on GSPs helped in understanding the polymer nanofiller interface. Growth conformation of polymer chains in and around the 2D nanofiller provides fresh perspective into polymer chain dynamics.
Supplementary document for Highly-sensitive full solar-blind ultraviolet spectrum detection and imaging based on PdSe2/Ga2O3 vdW heterojunction - 7140319.pdf
Creators: name: Cao, Xiaolin
name: Liu, Kunxuan
name: Wu, Di
name: Zhou, Zhiman
name: LIN, PEI
name: Zhuo, Ranran
name: Shi, Zhifeng
name: Hu, Xin
name: Zeng, Longhui
name: Li, Xin Jian
Publisher: name: Optica Publishing Group
Year: 2024
Subjects: Uncategorized

description: Supplemental 1