cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Evaluating the Morphology of the Local Interstellar Medium: Using New Data to Distinguish Between Multiple Discrete Clouds and a Continuous Medium
Creators: name: Redfield, Seth
name: Linsky, Jeffrey L.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Ultraviolet and optical spectra of interstellar gas along the lines of sight to nearby stars have been interpreted by Redfield & Linsky (2008) and previous studies as a set of discrete warm, partially ionized clouds each with a different flow vector, temperature, and metal depletion. Recently, Gry & Jenkins (2014) have proposed a fundamentally different model consisting of a single cloud with nonrigid flows filling space out to 9 parsecs from the Sun that they propose better describes the local ISM. Here we test these fundamentally different morphological models against the spatially unbiased Malamut et al. (2014) spectroscopic data set, and find that the multiple cloud morphology model provides a better fit to both the new and old data sets. The detection of three or more velocity components along the lines of sight to many nearby stars, the presence of nearby scattering screens, the observed thin elongated structures of warm interstellar gas, and the likely presence of strong interstellar magnetic fields also support the multiple cloud model. The detection and identification of intercloud gas and the measurement of neutral hydrogen density in clouds beyond the Local Interstellar Cloud could provide future morphological tests.
description: 15 pages, 2 figures. Accepted for publication in ApJ
Heat diffusion in the disordered electron gas
Creators: name: Schwiete, G.
name: Finkel'stein, A. M.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We study the thermal conductivity of the disordered two-dimensional electron gas. To this end we analyze the heat density-heat density correlation function concentrating on the scattering processes induced by the Coulomb interaction in the sub-temperature energy range. These scattering processes are at the origin of logarithmic corrections violating the Wiedemann-Franz law. Special care is devoted to the definition of the heat density in the presence of the long-range Coulomb interaction. To clarify the structure of the correlation function, we present details of a perturbative calculation. While the conservation of energy strongly constrains the general form of the heat density-heat density correlation function, the balance of various terms turns out to be rather different from that for the correlation functions of other conserved quantities such as the density-density or spin density-spin density correlation function.
description: 23 pages, 12 figures
EXPERIMENTS ON HERBAGE CROPS AT SAXMUNDHAM, 1967-71, Rothamsted Experimental Station Report for 1971 Part 2
Creators: name: R. J. B. WILLIAMS And G. W. COOKE
Publisher: name: Lawes Agricultural Trust
Year: 1972
Subjects: subject: rothamsted research
subject: saxmundham experimental station

description: Scanned PDF of EXPERIMENTS ON HERBAGE CROPS AT SAXMUNDHAM, 1967-71, part of Rothamsted Experimental Station Report for 1971 Part 2
title: Embodied Martial and Medical Practices of South India
Creators: name: P. S., Gowtham
Publisher: name: Journal of Martial Arts Research
Year: 2019

description: In Tamil Nadu and Kerala, the martial arts practices appear under different names and emphasize different aspects according to geographical, political, and linguistic considerations. They find a place in contemporary society by addressing performative, fitness, and nationalistic and socio-political purposes. There are traditional medical systems, Siddha and Ayurveda, associated with these martial arts: many martial arts practitioners are medical practitioners as well. In my paper, I draw connections between the Siddha medical system and the above-mentioned martial systems.


The martial artist’s internalized understanding of the body as malleable, able to conform to stylistic conventions, and able to navigate and exploit space to harm the opponent, I contend, must in some way affect his perspective when he takes on the role of Siddha practitioner. My paper will analyse the forms and movements as they relate to the medical systems, and the role they play in the practitioner’s lived identity as well as in the collective regional identity. This paper explores the above-mentioned systems within the rationality of these systems of knowledge.
description: Journal of Martial Arts Research, Bd. 2 Nr. 2 (2019): Tagungsbeiträge 2018
Emulating the one-dimensional Fermi-Hubbard model by a double chain of qubits
Creators: name: Reiner, Jan-Michael
name: Marthaler, Michael
name: Braumüller, Jochen
name: Weides, Martin
name: Schön, Gerd
Publisher: name: arXiv
Year: 2016
Subjects: subject: Quantum Physics (quant-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: The Jordan-Wigner transformation maps a one-dimensional spin-1/2 system onto a fermionic model without spin degree of freedom. A double chain of quantum bits with XX and ZZ couplings of neighboring qubits along and between the chains, respectively, can be mapped on a spin-full 1D Fermi-Hubbard model. The qubit system can thus be used to emulate the quantum properties of this model. We analyze physical implementations of such analog quantum simulators, including one based on transmon qubits, where the ZZ interaction arises due to an inductive coupling and the XX interaction due to a capacitive interaction. We propose protocols to gain confidence in the results of the simulation through measurements of local operators.
description: 5+5 pages, 9 figures
On the impact of swirl on the growth of coherent structures
Creators: name: Oberleithner, Kilian
name: Paschereit, Christian Oliver
name: Wygnanski, I.
Publisher: name: Technische Universität Berlin
Year: 2014
Subjects: subject: 530 Physik
subject: absolute/convective instability
subject: turbulent flows
subject: wakes/jets

description: Dieser Beitrag ist mit Zustimmung des Rechteinhabers aufgrund einer (DFG geförderten) Allianz- bzw. Nationallizenz frei zugänglich.
description: This publication is with permission of the rights owner freely accessible due to an Alliance licence and a national licence (funded by the DFG, German Research Foundation) respectively.
description: Spatial linear stability analysis is applied to the mean flow of a turbulent swirling jet at swirl intensities below the onset of vortex breakdown. The aim of this work is to predict the dominant coherent flow structure, their driving instabilities and how they are affected by swirl. At the nozzle exit, the swirling jet promotes shear instabilities and, less unstable, centrifugal instabilities. The latter stabilize shortly downstream of the nozzle, contributing very little to the formation of coherent structures. The shear mode remains unstable throughout generating coherent structures that scale with the axial shear-layer thickness. The most amplified mode in the nearfield is a co-winding double-helical mode rotating slowly in counter-direction to the swirl. This gives rise to the formation of slowly rotating and stationary large-scale coherent structures, which explains the asymmetries in the mean flows often encountered in swirling jet experiments. The co-winding single-helical mode at high rotation rate dominates the farfield of the swirling jet in replacement of the co- and counter-winding bending modes dominating the non-swirling jet. Moreover, swirl is found to significantly affect the streamwise phase velocity of the helical modes rendering this flow as highly dispersive and insensitive to intermodal interactions, which explains the absence of vortex pairing observed in previous investigations. The stability analysis is validated through hot-wire measurements of the flow excited at a single helical mode and of the flow perturbed by a time- and space-discrete pulse. The experimental results confirm the predicted mode selection and corresponding streamwise growth rates and phase velocities.
Considering equity in health technology assessment: an exploratory analysis of agency practices
Creators: name: Panteli, Dimitra
name: Kreis, Julia
name: Busse, Reinhard
Publisher: name: Technische Universität Berlin
Year: 2015
Subjects: subject: 610 Medizin, Gesundheit
subject: equity
subject: health technology assessment
subject: inequities
subject: agency approaches
subject: health policy

description: Dieser Beitrag ist mit Zustimmung des Rechteinhabers aufgrund einer (DFG geförderten) Allianz- bzw. Nationallizenz frei zugänglich.
description: This publication is with permission of the rights owner freely accessible due to an Alliance licence and a national licence (funded by the DFG, German Research Foundation) respectively.
description: Objectives: Equity is one of the founding principles in most healthcare systems. Financial constraints entail an increased risk of exacerbating inequities and a greater need for evidence-based decisions. It is, therefore, both important and timely to enquire how equity can be addressed in health technology assessment (HTA) practice. We aimed to explore related practices from a broad range of HTA agencies, identify exemplary approaches and common concerns, and offer insights for future considerations. Methods: HTA agencies for which both methodological guides and HTA reports were publicly available were selected from an initial comprehensive pool. Information was extracted on issues ranging from a general commitment to fairness to specific measures targeting both methodological and process-related elements. Results: Methodological documents and ninety-eight reports from nineteen agencies were analyzed. Our findings indicate that equity was not a standard consideration in HTA report production. The nature of specific approaches and the amount of resources invested into including an equity perspective varied considerably. Specific measures (e.g., appropriate information sources, analytical tools, and schemes) were mentioned by almost half of the agencies analyzed. Albeit sporadic, both horizontal and vertical equity considerations were identified in included HTA reports. Conclusions: While varying legal contexts and institutional principles can lead to different interpretations of equity at the decision point, a combination of methodological and process-related practices could contribute to more equity-sensitive evaluations, especially in conjunction with enhanced dissemination of existing methodological tools. Networking initiatives on behalf of existing collaborating platforms could play an important role in this direction.
Accuracy and Performance of a Novel 3D Metal Printed Orthodontic Bracket
Creators: name: Jackson, Christina
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2017

description: 3D metal printing is an emerging technology with potential to streamline bracket production for personalized and precision orthodontics. We hypothesized that the dimensional accuracy and shear bond strength (SBS) of 3D metal printed brackets are comparable to that of conventionally manufactured brackets. A novel .022 inch bracket was designed in Solidworks™, 3D printed in 316-SS via direct metal laser sintering (DMLS), and compared to two commercial bracket systems: Damon and Ti-Orthos (N=35 per system). Slots were visualized by stereomicroscope and measured with software by two examiners. SBS was measured by Instron universal testing machine. A one-way ANOVA and Tamhane’s H2 statistical analyses were performed. The 3D printed slot (.0221± .001in.) was found to be more accurate than control bracket slots (Damon=.0246± .001in.; Ti-Orthos=.0245± .005in.) (p<.001). There was no difference in SBS of the three systems (p=0.9). Our data support the use of 3D metal printing for the orthodontic bracket manufacture.
NEOWISE Reactivation Mission Year One: Preliminary Asteroid Diameters and Albedos
Creators: name: Nugent, C. R.
name: Mainzer, A.
name: Masiero, J.
name: Bauer, J.
name: Cutri, R. M.
name: Grav, T.
name: Kramer, E.
name: Sonnett, S.
name: Stevenson, R.
name: Wright, E. L.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: We present preliminary diameters and albedos for 7,959 asteroids detected in the first year of the NEOWISE Reactivation mission. 201 are near-Earth asteroids (NEAs). 7,758 are Main Belt or Mars-crossing asteroids. 17% of these objects have not been previously characterized using WISE or NEOWISE thermal measurements. Diameters are determined to an accuracy of ~20% or better. If good-quality H magnitudes are available, albedos can be determined to within ~40% or better.
description: 42 pages, 5 figures
A systematic review and pooled prevalence of PD, including identification of the risk factors for the development of delirium in critically ill children
Creators: name: Semple, Diarmaid
Publisher: name: Open Science Framework
Year: 2022
Subjects: subject: Medicine and Health Sciences
subject: Critical Care
subject: Delirium
subject: NICU
subject: Paediatric
subject: Pediatric
subject: PICU

description: A Systematic review of the available literature to determine the pooled prevalence, risk factors, and management of paediatric delirium (PD).
Oblique waves on a vertically sheared current are rotational
Creators: name: Ellingsen, Simen Å.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: Pattern Formation and Solitons (nlin.PS)
subject: Atmospheric and Oceanic Physics (physics.ao-ph)
subject: FOS: Physical sciences

description: In the study of surface waves in the presence of a shear current, a useful and much studied model is that in which the shear flow has constant vorticity. Recently it was shown by Constantin [Eur. J. Mech. B/Fluids 30 (2011) 12-16] that a flow of constant vorticity can only permit waves travelling exactly upstream or downstream, but not at oblique angles to the current, and several proofs to the same effect have appeared thereafter. Physical waves cannot possibly adhere to such a restriction, however. We resolve the paradox by showing that an oblique plane wave propagating atop a current of constant vorticity according to the linearized Euler equation carries with it an undulating perturbation of the vorticity field, hence is not prohibited by the Constantin theorem since vorticity is not constant. The perturbation of the vorticity field is readily interpreted in a Lagrangian perspective as the wave motion gently shifting and twisting the vortex lines as the wave passes. In the special case of upstream or downstream propagation, the wave advection of vortex lines does not affect the Eulerian vorticity field, in accordance with the theorem. We conclude that the study of oblique waves on shear currents requires a formalism allowing undulating perturbations of the vorticity field, and the constant vorticity model is helpful only in certain 2D systems.
description: 6 pages, 1 figure, Accepted for publication in Eur. J. Mech. B/Fluids
Regulation of H2B Monoubiquitylation by RNP Recycling Protein Prp24
Creators: name: Bolling, Katie
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2016

description: Post-translational modification of histone proteins and splicing of pre-mRNA transcripts are two fundamental aspects of gene regulation that are essential for eukaryotic life. Often, these processes are investigated in isolation; however, they do not occur independently. Although evidence supports cross-regulation between chromatin and RNA processing, there remains a gap in understanding of the mechanisms involved. Here, I describe a novel function for splicing protein Prp24, mutation of which alters monoubiquitylation of histone H2B (H2Bub1). Whereas the role of Prp24 in spliceosome assembly and recycling has been well studied, it has not been previously associated with a role in chromatin modification. My results indicate that a highly conserved region of Prp24 may be critical for regulating levels of H2Bub1. Investigations into the effects of U6 small nuclear (sn)RNA on this regulation are also discussed. Together, these data suggest a mechanism by which spliceosomal machinery regulates histone modification.
Super-approximation, I: p-adic semisimple case
Creators: name: Golsefidy, Alireza Salehi
Publisher: name: arXiv
Year: 2016
Subjects: subject: Group Theory (math.GR)
subject: Number Theory (math.NT)
subject: FOS: Mathematics

description: Let $k$ be a number field, $Ω$ be a finite symmetric subset of $\mathbb{GL}_{n_0}(k)$, and $Γ=\langle Ω\rangle$. Let \[ C(Γ):=\{\mathfrak{p}\in V_f(k)|\hspace{1mm} Γ\text{is a bounded subgroup of} \mathbb{GL}_{n_0}(k_{\mathfrak{p}})\}, \] and $Γ_{\mathfrak{p}}$ be the closure of $Γ$ in $\mathbb{GL}_{n_0}(k_{\mathfrak{p}})$. Assuming that the Zariski-closure of $Γ$ is semisimple, we prove that the family of left translation actions $\{Γ\curvearrowright Γ_{\mathfrak{p}}\}_{\mathfrak{p}\in C(Γ)}$ has {\em uniform spectral gap}. As a corollary we get that the left translation action $Γ\curvearrowright G$ has {\em local spectral gap} if $Γ$ is a countable dense subgroup of a semisimple $p$-adic analytic group $G$ and Ad$(Γ)$ consists of matrices with algebraic entries in some $\mathbb{Q}_p$-basis of Lie$(G)$. This can be viewed as a (stronger) $p$-adic version of \cite[Theorem A]{BISG}, which enables us to give applications to the Banach-Ruziewicz problem and orbit equivalence rigidity.
description: Revised and added explanations based on referee reports
The evolution of high-redshift massive black holes
Creators: name: Volonteri, Marta
name: Habouzit, Melanie
name: Pacucci, Fabio
name: Tremmel, Michael
Publisher: name: arXiv
Year: 2015
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Massive black holes (MBHs) are nowadays recognized as integral parts of galaxy evolution. Both the approximate proportionality between MBH and galaxy mass, and the expected importance of feedback from active MBHs in regulating star formation in their host galaxies point to a strong interplay between MBHs and galaxies. MBHs must form in the first galaxies and be fed by gas in these galaxies, with continuous or intermittent inflows that, at times, can be larger than the Eddington rate. Feedback from supernovae and from the MBHs themselves modulates the growth of the first MBHs. While current observational data only probe the most massive and luminous MBHs, the tip of the iceberg, we will soon be able to test theoretical models of MBH evolution on more "normal" MBHs: the MBHs that are indeed relevant in building the population that we observe in local galaxies, including our own Milky Way.
description: 8 pages. Brief review to appear in Galaxies at High Redshift and Their Evolution over Cosmic Time, Proceedings IAU Symposium No. 319, 2015
A Multicity Study of Association between Air Pollution and CHD Mortality in China by Using Time Series Threshold Poisson Regression Model
Creators: name: Xiaoyu, Chen
Publisher: name: Humboldt-Universität zu Berlin
Year: 2016
Subjects: subject: air pollution
subject: CHD mortality
subject: PM10
subject: threshold
subject: season
subject: China
subject: 330 Wirtschaft

description: There are few multicity studies to address the effect of short-term effect of particulate matter air pollution on daily Coronary Heart Disease (CHD) mortality in developing countries, much fewer to further discuss its threshold and seasonal effect. This study investigates the season-varying association between particulate matter less than or equal to 10 μm in aerodynamic diameter (PM10) and daily CHD mortality in seven cities of China. Time series threshold Poisson regression model is specified to estimate the health effect for four cities with the threshold effect, and conventional linear Poisson model is used to analyze the effect for three cities without threshold. We apply the Bayesian hierarchical model to pool the city-specific estimates into overall level. On average, a 10μg/m3 increase of the moving average concentrations of current-day and previous-day PM10 is associated with an increase of 0.81% (95% Posterior Interval, PI: -0.04%, 1.67%) in daily CHD mortality for all the cities as a whole. The associations are smaller than reported in developed countries or regions with lower polluted level, which is consistent to the findings in the literature. The hazardous effect are higher in hot summer and cold winter (1.15% and 0.89%) but lower in relative warm spring and fall (0.85% and 0.69%). In summary, we found significant associations between short-term exposure to PM10 and CHD mortality in China. The sensitivity analyses in the study support the robustness of our results.
Space-Time Hierarchical-Graph Based Cooperative Localization in Wireless Sensor Networks
Creators: name: Lv, Tiejun
name: Gao, Hui
name: Li, Xiaopeng
name: Yang, Shaoshi
name: Hanzo, Lajos
Publisher: name: arXiv
Year: 2015
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: It has been shown that cooperative localization is capable of improving both the positioning accuracy and coverage in scenarios where the global positioning system (GPS) has a poor performance. However, due to its potentially excessive computational complexity, at the time of writing the application of cooperative localization remains limited in practice. In this paper, we address the efficient cooperative positioning problem in wireless sensor networks. A space-time hierarchical-graph based scheme exhibiting fast convergence is proposed for localizing the agent nodes. In contrast to conventional methods, agent nodes are divided into different layers with the aid of the space-time hierarchical-model and their positions are estimated gradually. In particular, an information propagation rule is conceived upon considering the quality of positional information. According to the rule, the information always propagates from the upper layers to a certain lower layer and the message passing process is further optimized at each layer. Hence, the potential error propagation can be mitigated. Additionally, both position estimation and position broadcasting are carried out by the sensor nodes. Furthermore, a sensor activation mechanism is conceived, which is capable of significantly reducing both the energy consumption and the network traffic overhead incurred by the localization process. The analytical and numerical results provided demonstrate the superiority of our space-time hierarchical-graph based cooperative localization scheme over the benchmarking schemes considered.
description: 14 pages, 15 figures, 4 tables, accepted to appear on IEEE Transactions on Signal Processing, Sept. 2015
Parkinson's disease patient rehabilitation using gaming platforms: lessons learnt
Creators: name: Pachoulakis, Ioannis
name: Papadopoulos, Nikolaos
name: Spanaki, Cleanthe
Publisher: name: arXiv
Year: 2015
Subjects: subject: Computers and Society (cs.CY)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences
subject: I.6.3; I.6.8

description: Parkinson's disease (PD) is a progressive neurodegenerative movement disorder where motor dysfunction gradually increases as the disease progress. In addition to administering dopaminergic PD-specific drugs, attending neurologists strongly recommend regular exercise combined with physiotherapy. However, because of the long-term nature of the disease, patients following traditional rehabilitation programs may get bored, lose interest and eventually drop out as a direct result of the repeatability and predictability of the prescribed exercises. Technology supported opportunities to liven up a daily exercise schedule have appeared in the form of character-based, virtual reality games which promote physical training in a non-linear and looser fashion and provide an experience that varies from one game loop the next. Such "exergames", a word that results from the amalgamation of the words "exercise" and "game" challenge patients into performing movements of varying complexity in a playful and immersive virtual environment. Today's game consoles such as Nintendo's Wii, Sony PlayStation Eye and Microsoft's Kinect sensor present new opportunities to infuse motivation and variety to an otherwise mundane physiotherapy routine. In this paper we present some of these approaches, discuss their suitability for these PD patients, mainly on the basis of demands made on balance, agility and gesture precision, and present design principles that exergame platforms must comply with in order to be suitable for PD patients.
description: 12 pages, 3 figures
A Study of the Participatory and Financial Opportunities Afforded to Women’s Athletic Programs by North Carolina NCAA member institutions
Creators: name: Howe, Amy M.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2007

description: This study examined financial and statistical data from North Carolina NCAA athletic programs. The purpose of the study was to determine the state of women’s athletic programs in the state. The study sought to find if opportunities for women’s athletics increased at the same rates as men’s athletic programs. The study found that not only were men were given more opportunities than women, but the percentage of increase for men was higher than that of women. The study also sought to compare women’s opportunities in North Carolina with other women’s NCAA programs in the United States. Overall, the study found that North Carolina athletic programs received fewer opportunities than the national average.
title: Методика проведения лабораторных занятий по географии почв с основами почвоведения
title: Учебно-методическое пособие
titleType: Subtitle
Creators: name: Файрушина С.М.
name:  Сакаева Д.Т.
Publisher: name: Набережночелнинский государственный педагогический университет
Year: 2010

description: Учебно-методическое пособие составлено в соответствии с действующей программой курса «Географии почв с основами почвоведения». В пособие включены интегрированные занятия по почвоведению, которые позволяют углубленно изучать дисциплину, применяя знания и законы естественнонаучных дисциплин: физики, химии, биологии, географии. Кратко рассмотрены теоретические, прикладные и экологические вопросы по курсу географии почв с основами почвоведения. Учебно-методическое пособие предназначено для проведения лабораторных и практических занятий по специальностям 050103.65 «География», 013000 «Почвоведение».
description: Educational-methodical manual compiled in accordance with the current program of the course "Geography of soils with fundamentals of soil science". The manual includes classes on soil science, which allow in-depth study of the discipline, applying knowledge of the laws of natural Sciences: physics, chemistry, biology, geography. Briefly considered theoretical, applied, and environmental issues in the geography of soils with fundamentals of soil science. Educational-methodical manual is intended for carrying out laboratory and practical training on specialties 050103.65 "Geography," 013000 "soil science".
Synchrotron Radiation From Weakly Magnetized Schwarzschild Black Hole
Creators: name: Shoom, Andrey A.
Publisher: name: arXiv
Year: 2015
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We consider a synchrotron radiation from a charged particle moving in a bound orbit around a weakly magnetized Schwarzschild black hole (a static black hole immersed into a constant uniform magnetic field) in its equatorial plane, perpendicular to the magnetic field. In particular, we study the case when the Lorentz force acting on the charged particle is directed outward from the black hole. The particle is initially moving in a nongeodesic bound orbit which due to synchrotron radiation decays to a nongeodesic circular orbit. We study this transition and calculate the radiated power and energy loss of the particle.
description: 7 pages, 4 figures
Radio halos in SZ-selected clusters of galaxies: the making of a halo?
Creators: name: Bonafede, A.
name: Intema, H. T.
name: Brüggen, M.
name: Vazza, F.
name: Basu, K.
name: Sommer, M.
name: Ebeling, H.
name: de Gasperin, F.
name: Röttgering, H. J. A.
name: van Weeren, R. J.
name: Cassano, R.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Radio halos are synchrotron radio sources detected in some massive galaxy clusters. Their Mpc-size indicates that (re)acceleration processes are taking place in the host cluster. X-ray catalogues of galaxy clusters have been used in the past to search for radio halos and to understand their connection with cluster-cluster mergers and with the thermal component of the intra-cluster medium. More recently, the Sunyaev-Zel'dovich effect has been proven to be a better route to search for massive clusters in a wider redshift range. With the aim of discovering new radio halos and understanding their connection with cluster-cluster mergers, we have selected from the Planck Early source catalog the most massive clusters, and we have observed with the Giant Metrewave Radio Telescope at 323 MHz those objects for which deep observations were not available. We have discovered new peculiar radio emission in three of the observed clusters finding: (i) a radio halo in the cluster RXCJ0949.8+1708; (ii) extended emission in Abell 1443 that we classify as a radio halo plus a radio relic, with a bright filament embedded in the radio halo; (iii) low-power radio emission is found in CIZA J1938.3+5409 which is ten times below the radio - X-ray correlation, and represents the first direct detection of the radio emission in the "upper-limit" region of the radio - X-ray diagram. We discuss the properties of these new radio halos in the framework of theoretical models for the radio emission.
description: 14 pages, 12 Figures, Accepted by MNRAS
The Immediate Effects of Graston Technique and Self Myofascial Release on Range of Motion and Local Neuromuscular Activity in the Triceps Surae Group
Creators: name: Gibb, Emily
Publisher: name: University of North Carolina at Chapel Hill
Year: 2012

description: Objective: To determine if there are any changes in range of motion and neural properties in the triceps surae muscle group following the administration of either or both Graston Technique and Self-Myofasical Release. Design: Counterbalanced Crossover Study Design Setting: Young, relatively healthy recreationally active patiens Patients: Twenty participants (10 male and 10 female) between the ages of 18-25 Interventions: Control measure, Graston Technique instrument assisted soft tissue massage, Self-Myofascial Release with a foam roller. Main Outcome Measures: Likert Scale survey data, dorsiflexion range of motion, muscle stiffness of the triceps surae, reflex EMG amplitude and reflex force of the triceps surae. Results: Significant difference exists between intervention (either treatment) and control groups on dorsiflexion range of motion measures but not on any neural measures taken in this study. Additionally, patients feel that Graston Technique is more effect in reducing pain and tightness than either SMR or the control measure. Conclusions: Further research is necessary to determine the immediate effects of both of these treatments but preliminary research suggests that there may be significant crossover in their uses in an active population. Key Words: Graston Technique, Foam rolling, Self- Myofascial Release
Vibrational spectra and structures of SinC clusters (n=3-8)
Creators: name: Nguyen Xuan Truong
name: Savoca, Marco
name: Harding, Dan J.
name: Fielicke, André
name: Dopfer, Otto
Publisher: name: Technische Universität Berlin
Year: 2015
Subjects: subject: 540 Chemie und zugeordnete Wissenschaften

description: The effects of doping bare silicon clusters with carbon on their physical properties are of fundamental interest for the chemistry of the interstellar medium and the development of novel nanostructures in materials science. Carbon-doped silicon clusters (SinC, n = 3-8) are characterized in the gas phase with infrared-ultraviolet two-color ionization (IR-UV2CI) spectroscopy, mass spectrometry, and quantum chemical calculations. Structural identification is achieved by comparing the measured and calculated vibrational absorption spectra of the low-energy SinC isomers identified by global optimization algorithms. Except for planar Si3C, the most stable SinC clusters have three-dimensional configurations. While the Si3C and Si6C structures are uniquely assigned, several stable isomers of Si4C, Si5C, Si7C, and Si8C may co-exist under the present experimental conditions. Interestingly, some of the structures observed here are different from the ground state structures predicted previously. For the small neutral clusters (n <= 5), structures similar to those reported previously for the anions are observed. The highly stable Si3C unit with a nearly linear Si-C-Si motif is identified as characteristic building block in several of the most stable SinC structures. In all identified structures, a large negative charge of almost -2e is located on the C atom, indicating its role as electron donor in the Si-n host moiety. The B3LYP/cc-pVTZ level proves reliable in finding the experimentally observed isomers.
A family of wave equations with some remarkable properties
Creators: name: da Silva, Priscila Leal
name: Freire, Igor Leite
name: Sampaio, Júlio Cesar Santos
Publisher: name: arXiv
Year: 2016
Subjects: subject: Mathematical Physics (math-ph)
subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: FOS: Physical sciences

description: We consider a family of homogeneous nonlinear dispersive equations with two arbitrary parameters. Conservation laws are established from the point symmetries and imply that the whole family admits square integrable solutions. Recursion operators are found to two members of the family investigated. For one of them, a Lax pair is also obtained, proving its complete integrability. From the Lax pair we construct a Miura-type transformation relating the original equation to the KdV equation. This transformation, on the other hand, enables us to obtain solutions of the equation from the kernel of a Schrödinger operator with potential parametrized by the solutions of the KdV equation. In particular, this allows us to exhibit a kink solution to the completely integrable equation from the 1-soliton solution of the KdV equation. Finally, peakon-type solutions are also found for a certain choice of the parameters, although for this particular case the equation is reduced to a homogeneous second order nonlinear evolution equation.
description: This is a previous version of the published paper. There are some differences between this version and the one published. However the scientific content is just the same
The Sensitivity of Harassment to Orbit: Mass Loss from Early-Type Dwarfs in Galaxy Clusters
Creators: name: Smith, Rory
name: Sanchez-Janssen, Ruben
name: Beasley, Michael A.
name: Candlish, Graeme N.
name: Gibson, Brad K.
name: Puzia, Thomas H.
name: Janz, Joachim
name: Knebe, Alexander
name: Aguerri, J. Alfonso L.
name: Lisker, Thorsten
name: Hensler, Gerhard
name: Fellhauer, Michael
name: Ferrarese, Laura
name: Yi, Sukyoung K.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We conduct a comprehensive numerical study of the orbital dependence of harassment on early-type dwarfs consisting of 168 different orbits within a realistic, Virgo-like cluster, varying in eccentricity and pericentre distance. We find harassment is only effective at stripping stars or truncating their stellar disks for orbits that enter deep into the cluster core. Comparing to the orbital distribution in cosmological simulations, we find that the majority of the orbits (more than three quarters) result in no stellar mass loss. We also study the effects on the radial profiles of the globular cluster systems of early-type dwarfs. We find these are significantly altered only if harassment is very strong. This suggests that perhaps most early-type dwarfs in clusters such as Virgo have not suffered any tidal stripping of stars or globular clusters due to harassment, as these components are safely embedded deep within their dark matter halo. We demonstrate that this result is actually consistent with an earlier study of harassment of dwarf galaxies, despite the apparent contradiction. Those few dwarf models that do suffer stellar stripping are found out to the virial radius of the cluster at redshift=0, which mixes them in with less strongly harassed galaxies. However when placed on phase-space diagrams, strongly harassed galaxies are found offset to lower velocities compared to weakly harassed galaxies. This remains true in a cosmological simulation, even when halos have a wide range of masses and concentrations. Thus phase-space diagrams may be a useful tool for determining the relative likelihood that galaxies have been strongly or weakly harassed.
description: 17 pages, 13 figures, Accepted to MNRAS 8th September 2015
Observables and initial conditions for rotating and expanding fireballs with spheroidal symmetry
Creators: name: Csorgo, T.
name: Nagy, M. I.
name: Barna, I. F.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Nuclear Theory (nucl-th)
subject: High Energy Physics - Experiment (hep-ex)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: Utilizing a recently found class of exact, analytic rotating solutions of non-relativistic fireball hydrodynamics, we calculate analytically the single-particle spectra, the elliptic flows and two-particle Bose-Einstein correlation functions for rotating and expanding fireballs with spheroidal symmetry. We demonstrate, that rotation generates final state momentum anisotropies even for a spatially symmetric, spherical initial geometry of the fireball. The mass dependence of the effective temperatures, as well as the HBT radius parameters and the elliptic flow are shown to be sensitive not only to radial flow effects but also to the magnitude of the initial angular momentum.
description: 26 pages, with 18 .eps figures. Dedicated to L. P. Csernai on the occasion of his 65th birthday. Invited talk of T. Cs\"org\H{o} at the International Workshop on Collectivity in Relativistic Heavy Ion Collisions, Kolymbari, Crete,Greece, 14-20 September 2014, I.F. Barna at WPCF 2014, Gy\"ongy\"os, Hungary, 25-29 August 2014, and M. I. Nagy at WPCF 2015, Warsaw, Poland, 3-7 November 2015
Whitham theory for perturbed Korteweg-de Vries equation
Creators: name: Kamchatnov, A. M.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Pattern Formation and Solitons (nlin.PS)
subject: FOS: Physical sciences

description: Original Whitham's method of derivation of modulation equations is applied to systems whose dynamics is described by a perturbed Korteweg-de Vries equation. Two situations are distinguished: (i) the perturbation leads to appearance of right-hand sides in the modulation equations so that they become non-uniform; (ii) the perturbation leads to modification of the matrix of Whitham velocities. General form of Whitham modulation equations is obtained for each case. The essential difference between them is illustrated by an example of so-called `generalized Korteweg-de Vries equation'. Method of finding steady-state solutions of perturbed Whitham equations in the case of dissipative perturbations is considered.
description: 12 pages
On the Role of Collective Sensing and Evolution in Group Formation
Creators: name: Bennati, Stefano
Publisher: name: arXiv
Year: 2016
Subjects: subject: Populations and Evolution (q-bio.PE)
subject: Multiagent Systems (cs.MA)
subject: FOS: Biological sciences
subject: FOS: Computer and information sciences

description: Collective sensing is an emergent phenomenon which enables individuals to estimate a hidden property of the environment through the observation of social interactions. Previous work on collective sensing shows that gregarious individuals obtain an evolutionary advantage by exploiting collective sensing when competing against solitary individuals. This work addresses the question of whether collective sensing allows for the emergence of groups from a population of individuals without predetermined behaviors. It is assumed that group membership does not lessen competition on the limited resources in the environment, e.g. groups do not improve foraging efficiency. Experiments are run in an agent-based evolutionary model of a foraging task, where the fitness of the agents depends on their foraging strategy. The foraging strategy of agents is determined by a neural network, which does not require explicit modeling of the environment and of the interactions between agents. Experiments demonstrate that gregarious behavior is not the evolutionary-fittest strategy if resources are abundant, thus invalidating previous findings in a specific region of the parameter space. In other words, resource scarcity makes gregarious behavior so valuable as to make up for the increased competition over the few available resources. Furthermore, it is shown that a population of solitary agents can evolve gregarious behavior in response to a sudden scarcity of resources, thus individuating a possible mechanism that leads to gregarious behavior in nature. The evolutionary process operates on the whole parameter space of the neural networks, hence these behaviors are selected among an unconstrained set of behavioral models.
The Early ALMA View of the FU Ori Outburst System
Creators: name: Hales, A. S.
name: Corder, S. A.
name: Dent, W. R. D.
name: Andrews, S. M.
name: Eisner, J. A.
name: Cieza, L. A.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We have obtained ALMA Band 7 observations of the FU Ori outburst system at 0.6"x0.5" resolution to measure the link between the inner disk instability and the outer disk through sub-mm continuum and molecular line observations. Our observations detect continuum emission which can be well modeled by two unresolved sources located at the position of each binary component. The interferometric observations recover the entire flux reported in previous single-dish studies, ruling out the presence of a large envelope. Assuming that the dust is optically thin, we derive disk dust masses of $2\times 10^{-4}$M$_{\odot}$ and $8\times 10^{-5}$M$_{\odot}$, for the north and south components respectively. We place limits on the disks' radii of $r
description: ApJ Accepted
Fluvial Seismo-Acoustics: Characterizing temporally dependent river conditions through near river seismic and acoustic signals
Creators: name: Ronan, Timothy
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2017

description: Mechanisms that produce seismic and acoustic wave fields near rivers are poorly constrained because of a lack of observations relating river conditions to the near-river seismo-acoustic signals. To understand how temporally dependent river conditions impact the surrounding acoustic and seismic fields, I conducted experiments that test the relationships between near-river seismo-acoustic signals and river discharge, water wave action, and spatial variance. Experimental results provide evidence suggesting that seismic and acoustic energies are generated by water waves. The spectral content of these seismo-acoustic signals are controlled by measurable river parameters that include the bathymetric profile, discharge, and Froude number. Furthermore, I am able to locate finite regions that are likely to produce acoustic signals. By comparing regions of high temporal coherence to features at the river’s surface, I am able to suggest which hydro- dynamic features (hydraulic jumps/eddies) produce acoustic signals. Robust correlations between seismic and acoustic observations and identifiable river conditions can verify fluvial seismo-acoustical models and constrain seismo-acoustic observations made near rivers, which could eventually be used as a tool for monitoring fluvial processes.
Criterion for the occurrence of many body localization in the presence of a single particle mobility edge
Creators: name: Modak, Ranjan
name: Ghosh, Soumi
name: Mukerjee, Subroto
Publisher: name: arXiv
Year: 2016
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Non-interacting fermions in one dimension can undergo a localization-delocalization transition in the presence of a quasi-periodic potential as a function of that potential. In the presence of interactions, this transition transforms into a Many-Body Localization (MBL) transition. Recent studies have suggested that this type of transition can also occur in models with quasi-periodic potentials that possess single particle mobility edges. Two such models were studied in PRL 115,230401(2015) but only one was found to exhibit an MBL transition in the presence of interactions while the other one did not. In this work we investigate the occurrence of MBL in the presence of weak interactions in five different models with single particle mobility edges in one dimension with a view to obtaining a criterion for the same. We find that not all such models undergo a thermal-MBL phase transition in presence of weak interactions. We propose a criterion to determine whether MBL is likely to occur in presence of interaction based only on the properties of the non-interacting models. The relevant quantity $ε$ is a measure of how localized the localized states are relative to how delocalized the delocalized states are in the non-interacting model. We also study various other features of the non-interacting models such as the divergence of the localization length at the mobility edge and the presence or absence of `ergodicity' and localization in their many-body eigenstates. However, we find that these features cannot be used to predict the occurrence of MBL upon the introduction of weak interactions.
description: 13 Pages, 15 Figures, accepted in Phys. Rev. B
An Archaeological Study of Common Coarse Earthenware in the Eighteenth-Century Chesapeake
Creators: name: Bloch, Lindsay
Publisher: name: University of North Carolina at Chapel Hill
Year: 2011

description: As some of the most frequently recovered historic artifacts on domestic sites, common coarse earthenwares have great promise as an interpretive tool. However, archaeological common coarse earthenwares are not easily attributed to a particular potter or period. The earthenware potters operating in North America, England, and elsewhere in Europe largely shared manufacturing methods, vessel forms and decoration. For over two hundred years, the process of producing common coarse earthenware went largely unchanged. Through comparative analysis of domestic site assemblages across the Chesapeake, I demonstrate that common coarse earthenwares are not homogenous, instead exhibiting both temporal and spatial patterning. Over time, the proportion of coarse earthenware in ceramic assemblages decreased, and glazing patterns changed. Certain attributes of common coarse earthenware are more common at some sites than others, indicating differential availability or functional requirements among sites and sub-regions of the Chesapeake, and are perhaps evidence of discrete production origins.