cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Perurbation expansions for the spiked harmonic oscillator and related series involving the gamma function
Creators: name: Hall, Richard L.
name: Saad, Nasser
Publisher: name: arXiv
Year: 2000
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We study weak-coupling perturbation expansions for the ground-state energy of the Hamiltonian with the generalized spiked harmonic oscillator potential V(x) = Bx^2 + A/x^2 + lambda/x^alpha, and also for the bottoms of the angular momentum subspaces labelled by ell = 0,1,2 ..., in N-dimensions corresponding to the spiked harmonic oscillator potential: V(x) = x^2 + lambda/x^alpha, where alpha is a real positive parameter. A method of Znojil is then applied to obtain closed form expressions for the sums of some infinite series whose terms involve ratios and products of gamma functions.
description: 9 pages
Camera Motion Estimation for Multi-Camera Systems
Creators: name: Kim, Jae-Hak
Publisher: name: The Australian National University
Year: 2008
Subjects: Motion Estimation, Global Optimization, Second-Order Cone Programming, Linear Programming, Multi-Camera System, Plucker coordinates, Generalized Essential Matrix, Visual Odometry, Non-Overlapping View, Multi-Camera Rigs

description: The estimation of motion of multi-camera systems is one of the most important tasks in computer vision research. Recently, some issues have been raised about general camera models and multi-camera systems. Using many cameras as a single camera is studied [60], and the epipolar geometry constraints of general camera models is theoretically derived. Methods for calibration, including a self-calibration method for general camera models, are studied [78, 62]. Multi-camera systems are an example of practically implementable general camera models and they are widely used in many applications nowadays because of both the low cost of digital charge-coupled device (CCD) cameras and the high resolution of multiple images from the wide ﬁeld of views. To our knowledge, no research has been conducted on the relative motion of multi-camera systems with non-overlapping views to obtain a geometrically optimal solution. ¶ In this thesis, we solve the camera motion problem for multi-camera systems by using linear methods and convex optimization techniques, and we make ﬁve substantial and original contributions to the ﬁeld of computer vision. ...
Interpretation and Extension of the Green's Ansatz for Paraparticles
Creators: name: Quesne, C.
Publisher: name: arXiv
Year: 1999
Subjects: subject: Mathematical Physics (math-ph)
subject: High Energy Physics - Theory (hep-th)
subject: Quantum Algebra (math.QA)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: The anomalous bilinear commutation relations satisfied by the components of the Green's ansatz for paraparticles are shown to derive from the comultiplication of the paraboson or parafermion algebra. The same provides a generalization of the ansatz, wherein paraparticles of order $p=\sum_{α=1}^r p_α$ are constructed from r paraparticles of order $p_α$, $α$=1,2, ...,r.
description: LaTeX, uses amssym.sty, 9 pages, no figures, to appear in Phys. Lett. A
Bispectral Operators of Rank 1 and Dual Isomonodromic Deformations
Creators: name: Harnad, J.
Publisher: name: arXiv
Year: 1996
Subjects: subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: A comparison is made between bispectral operator pairs and dual pairs of isomonodromic deformation equations. Through examples, it is shown how operators belonging to rank one bispectral algebras may be viewed equivalently as defining 1-parameter families of rational first order differential operators with matricial coefficients on the Riemann sphere, whose monodromy is trivial. By interchanging the rôles of the two variables entering in the bispectral pair, a second 1-parameter family of operators with trivial monodromy is obtained, which may be viewed as the dual isomonodromic deformation system.
description: 16pgs, AMSTeX
Scaphobaeocera excisa Löbl, 2011, sp. n.
Creators: name: Löbl, Ivan
Publisher: name: Zenodo
Year: 2011
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Staphylinidae
Scaphobaeocera
Scaphobaeocera excisa

description: Scaphobaeocera excisa sp. n. Figs 20-23
HOLOTYPE: Ƌ, Luzon, Baguio, Mt. Santo Thomas, ca 1850m, 14.I.1980, L. Deharveng & J. Orousset leg. # 191 (MHNG).
PARATYPES: 3 Ƌ, with same data as the holotype; 2 Ƌ, Luzon, Baguio, Mt. Santo Thomas, ca 2150m, 14.I.1980, L. Deharveng & J. Orousset leg. #198 (all MHNG).
DESCRIPTION: Length 0.95-1.05 mm, width 0.60-0.63 mm, dorsoventral diameter 0.54-0.55 mm. Head and body ochraceous to blackish, appendages lighter. Thorax and elytra lacking microsculpture, not iridescent. Pronotal and elytral punctation very fine, dense, visible at magnification 32x. Length ratio of antennomeres as: III 6: IV 6: V 6: VI 6: VII 10: VIII 5: IX 9: X 9: XI 13. Segments III and IV similar, very narrow, each about 4 times as long as wide. Segments V and VI slightly wider than segment IV. Segment VII about 2.5 times as long as wide. Segment VIII about 1.3 times as long as wide. Segments IX and X hardly wider than segment VII. Segment XI not widened apically, almost 3 times as long as wide. Tip of scutellum exposed. Elytra without parasutural striae, sutural striae curved at base and extending along basal margin to form short basal striae, ending in inner halves of basal elytral width. Hypomeron not microsculptured, lacking longitudinal stria. Middle part of metaventrite flat, lacking stria or impression, coarsely and densely punctate, with short pubescence. Sides of metaventrite lacking microsculpture, sparsely, extremely finely punctate, with long pubescence. Mesocoxal lines with coarse marginal punctures extending laterally along mesepimera; submesocoxal areas about 0.03 mm long. Metepisterna slightly convex, exposed portion about 0.05 mm wide, with arcuate suture. Abdomen with hardly visible punctulate microsculpture. Abdominal punctation fine, except comparatively distinct punctation on propygidium. Basal punctures of ventrite 1 partly elongate and coarse. Tibiae straight.
Male characters. Protarsi with segments 1 to 3 slightly widened, much narrower than protibiae. Aedeagus (Figs 20-23) 0.35-0.38 mm long.
HABITAT: Moist ravine, in forest litter.
DISTRIBUTION: Philippines: Luzon.
 COMMENTS: The elytra with extended sutural striae and the shape of the parameres are diagnostic for this species. Scaphobaeocera incisa Löbl, 1990 has also emarginate parameres, but the emargination is subapical. Besides, it differs conspicuously in other aedeagal characters.
description: Published as part of Löbl, Ivan, 2011, On the Scaphisomatini (Coleoptera: Staphylinidae: Scaphidiinae) of the Philippines, II, pp. 695-721 in Revue suisse de Zoologie 118 (4) on pages 706-707, DOI: 10.5962/bhl.part.117823, http://zenodo.org/record/6312054
Chaos properties and localization in Lorentz lattice gases
Creators: name: Appert, C.
name: Ernst, M. H.
Publisher: name: arXiv
Year: 1997
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: The thermodynamic formalism of Ruelle, Sinai, and Bowen, in which chaotic properties of dynamical systems are expressed in terms of a free energy-type function - called the topological pressure - is applied to a Lorentz Lattice Gas, as typical for diffusive systems with static disorder. In the limit of large system sizes, the mechanism and effects of localization on large clusters of scatterers in the calculation of the topological pressure are elucidated and supported by strong numerical evidence. Moreover it clarifies and illustrates a previous theoretical analysis [Appert et al. J. Stat. Phys. 87, chao-dyn/9607019] of this localization phenomenon.
description: 32 pages, 19 Postscript figures, submitted to PRE
Honor Thy Father and Mother: Defining and Solving the Problem of Old Age in the United States, 1945-1961
Creators: Mann, Tamara Beth
Publisher: name: Columbia University
Year: 2014
Subjects: History

description: In the twentieth century, Americans got old. The average lifespan grew from forty-eight to seventy-eight years of age and new policy questions and ethical challenges accompanied this demographic transition. How should old age be defined? Who would care for the nation's elders? What should older Americans give back to their communities and what should they expect from their government? Where would the infirm elderly live? Where would they die? This project returns to the middle of the twentieth century when experts within universities, foundations, social welfare organizations, and the federal government took on these questions and sought lasting solutions to the mounting problem of old age. More specifically, Honor Thy Father and Mother investigates how "old age" came to be defined as a social problem worthy of federal attention in the 1950s and how that federal attention shaped a national discussion on the nature and needs of the elderly.
From the 1930s to the 1950s, the definition and problems of old age were in flux. Scientists, social workers, policy makers, doctors, and religious leaders challenged the viability of chronology as a medical and political marker of old age and questioned the wisdom of seeking longevity over a purposeful and dignified end. Their perspectives, while present in scientific, medical, and political discourse, did not translate into broad, well-funded federal programs. In their stead, the government threw its financial and administrative weight behind what I call the Medical Security Solution: initiatives such as bio-medical research and Medicare, which sought to cure the diseases of old age and relieve financial insecurity by covering the health care costs of social security recipients.
Honor Thy Father and Mother explores how the Medical Security Solution captured the attention of policy makers, activists for the aged, and senior citizens in the middle of the twentieth century and what ideas were lost in this process. This project offers a needed history of the assumptions that continue to frame, and limit, public discussions on care for the elderly.
Bayesian spectral density estimation using P-splines with quantile-based knot placement
Creators: name: Maturana-Russel, Patricio
name: Meyer, Renate
Publisher: name: arXiv
Year: 2019
Subjects: subject: Methodology (stat.ME)
subject: FOS: Computer and information sciences

description: This article proposes a Bayesian approach to estimating the spectral density of a stationary time series using a prior based on a mixture of P-spline distributions. Our proposal is motivated by the B-spline Dirichlet process prior of Edwards et al. (2019) in combination with Whittle's likelihood and aims at reducing the high computational complexity of its posterior computations. The strength of the B-spline Dirichlet process prior over the Bernstein-Dirichlet process prior of Choudhuri et al. (2004) lies in its ability to estimate spectral densities with sharp peaks and abrupt changes due to the flexibility of B-splines with variable number and location of knots. Here, we suggest to use P-splines of Eilers and Marx (1996) that combine a B-spline basis with a discrete penalty on the basis coefficients. In addition to equidistant knots, a novel strategy for a more expedient placement of knots is proposed that makes use of the information provided by the periodogram about the steepness of the spectral power distribution. We demonstrate in a simulation study and two real case studies that this approach retains the flexibility of the B-splines, achieves similar ability to accurately estimate peaks due to the new data-driven knot allocation scheme but significantly reduces the computational costs.
description: 5 figures, 4 tables
THERMO ACOUSTIC STUDIES ON METHOXY AND HYDROXY BENZOATE LIQUID MIXTURES
Creators: name: Dr. AYACHITHULA. NAGARJUNA
Publisher: name: Zenodo
Year: 2024

description: The investigation of ultrasonic waves and the distinction they make in the properties of the material is called ultrasonics; it is about the sound waves whose frequencies are more than around 20 KHz which means they are over the maximum furthest reaches of the perceptible range for people. The term sonic is related to ultrasound rushes of high frequencies. Hyper sound also called as praeter sound or smaller scale sound is the sound of frequencies more than 1013 hertz. An ultrasonic wave being transmitted through a substance is of two sorts. Every benevolent causes a specific improvement in the parts of medium and the manners in which that these segments seek after as they move considering the wave are called their circles. If these circles are parallel to the line of engendering, the waves are called longitudinal waves. If these circles are opposite to the line of engendering, the waves are called transverse waves or shear waves. Since liquids don't have shear adaptability, transverse waves can't exist in liquids. Rectilinear spread is a trademark appeared by ultrasonic waves because of their short wavelength.
Edge computing server placement with capacitated location allocation
Creators: name: Lähderanta, Tero
name: Leppänen, Teemu
name: Ruha, Leena
name: Lovén, Lauri
name: Harjula, Erkki
name: Ylianttila, Mika
name: Riekki, Jukka
name: Sillanpää, Mikko J.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Networking and Internet Architecture (cs.NI)
subject: FOS: Computer and information sciences

description: The deployment of edge computing infrastructure requires a careful placement of the edge servers, with an aim to improve application latencies and reduce data transfer load in opportunistic Internet of Things systems. In the edge server placement, it is important to consider computing capacity, available deployment budget, and hardware requirements for the edge servers and the underlying backbone network topology. In this paper, we thoroughly survey the existing literature in edge server placement, identify gaps and present an extensive set of parameters to be considered. We then develop a novel algorithm, called PACK, for server placement as a capacitated location-allocation problem. PACK minimizes the distances between servers and their associated access points, while taking into account capacity constraints for load balancing and enabling workload sharing between servers. Moreover, PACK considers practical issues such as prioritized locations and reliability. We evaluate the algorithm in two distinct scenarios: one with high capacity servers for edge computing in general, and one with low capacity servers for Fog computing. Evaluations are performed with a data set collected in a real-world network, consisting of both dense and sparse deployments of access points across a city area. The resulting algorithm and related tools are publicly available as open source software.
GRRIS: a real-time intra-site observation scheduling scheme for distributed survey telescope arrays
Creators: name: Zhang, Yajie
name: Yu, Ce
name: Sun, Chao
name: Hu, Yi
name: Shang, Zhaohui
name: Wei, Jizeng
name: Yang, Xu
Publisher: name: arXiv
Year: 2024
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: The distributed telescope array offers promise for conducting large-sky-area, high-frequency time domain surveys. Multiple telescopes can be deployed at each observation site, so intra-site observation task scheduling is crucial for enhancing observation efficiency and quality. Efficient use of observable time and rapid response to special situations are critical to maximize scientific discovery in time domain surveys. Besides, the competing scientific priorities, time-varying observation conditions, and capabilities of observation equipment, lead to a vast search space of the scheduling. So with the increasing number of telescopes and observation fields, balancing computational time with solution quality in observation scheduling poses a significant challenge. Informed by the seminal contributions of earlier studies on a multilevel scheduling model and global scheduler for time domain telescope array, this study is devoted to further exploring the site scheduler. Formulating the observation scheduling of multiple telescopes at the site as a cooperative decision-making problem, this paper proposes GRRIS, a real-time intra-site observation scheduling scheme for telescope array using graph and reinforcement learning. It employs a graph neural network to learn node features that can embed the spatial structure of the observation scheduling. An algorithm based on multi-agent reinforcement learning is designed to efficiently learn the optimum allocation policy of telescope agents to field nodes. Through numerical simulations with real-world scenarios, GRRIS can achieve up to a 22% solution improvement over the most competitive scheme. It offers better scalability and sub-second decision speed, meeting the needs of observation scheduling control for future distributed telescope arrays.
description: Astronomical Journal
title: Euphorbia villosa Waldst. et Kit. ex Willd.
Creators: name: :None
Publisher: name: Universitätsbibliothek
Year: 2009
Subjects: subject: Digitale Pflanzenbilder: Sammlung Dietmar Brandes
subject: 580

description: Pflanzensammlung Dietmar Brandes: Digitale Pflanzenbilder
Two-dimensional magnetohydrodynamic turbulence with large and small energy-injection length scales
Creators: name: Banerjee, Debarghya
name: Pandit, Rahul
Publisher: name: arXiv
Year: 2019
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: Two-dimensional magnetohydrodynamics (2D MHD), forced at (a) large length scales or (b) small length scales, displays turbulent, but statistically steady, states with widely different statistical properties. We present a systematic, comparative study of these two cases (a) and (b) by using direct numerical simulations (DNSs). We find that, in case (a), there is energy equipartition between the magnetic and velocity fields, whereas, in case (b), such equipartition does not exist. By computing various probability distribution functions (PDFs), we show that case (a) displays extreme events that are much less common in case (b).
Soil erosion and sediment control planning for managed forest watersheds : a case study on the Queen Charlotte Islands
Creators: name: Carr, William W., 1952-
Publisher: name: The University of British Columbia
Year: 2009

description: Public and professional awareness of the impacts of forest resource development on fishery and watershed values has increased dramatically over the past decade. Proper planning and implementation of soil erosion and sediment control procedures must be an integral part of forest resource management. In cooperation with the Ministry of Forests and Fletcher Challenge Canada Ltd., Terrasol has completed the development of a formal approach to soil erosion and sediment control planning for managed forest watersheds in British Columbia. The approach presented in this paper has been implemented on an operational basis in B.C., and moves sediment and erosion control operations from being post-damage "band-aid" treatments into an active cost-effective mitigation program.
An Analysis of Anaerobic Codigestion of Palm Oil Mill Effluent and Other Potential Feedstock
Creators: name: Wardani, Nina Anggita
name: Jaya, Danang
name: Widayati, Tunjung Wahyu
name: Nursubiyantoro, Eko
Publisher: name: Zenodo
Year: 2024

description: This material has been presented on 3rd International Conference on Advanced Research in Engineering and Technology 2024 October 23 - 24, 2024.
Homosexual Democracy in America: Political Ideology and Organization in the Mattachine, 1950-1954
Creators: Foote, Learned
Publisher: name: Columbia University
Year: 2011
Subjects: Gay and lesbian studies
Sexual minorities
History

description: The Mattachine Society brought about the inception of American homosexual
organization at the dawn of the Cold War. Founded in 1950 and continuing to the
Stonewall Riots of 1969, the Mattachine developed from a small group of five men who
met secretly in a Los Angeles home into a public organization that had thousands of
members over its lifetime. Spontaneously spreading to San Francisco and other parts of
California, the Mattachine inspired chapters in New York City, Denver, Washington DC,
and several states throughout the country. The organization founded a not-for-profit
corporation for education and debate, held discussion groups, published newsletters and a
monthly magazine, corresponded internationally, spoke on the radio, offered legal
counsel to gay people, and sponsored important scientific research. The Mattachine
Society and closely affiliated groups, along with contemporaneous lesbian movement
Daughters of Bilitis, were the first American organizations to advocate for homosexuals
and to inspire historic levels of gay membership
Film as Cultural Performance
Creators: name: Summerhayes, Catherine
Publisher: name: The Australian National University
Year: 2001
Subjects: Victor Turner, cultural performance, experience of film, performance theory, Mikhail M. Bakhtin, dialogism, film making performance, performances as text, cultural performances, Once Were Warriors, Rats in the Ranks, beDevil, Link-Up Diary, indigenous Australians

description: This thesis investigates how Victor Turner’s concept of ‘cultural performance’ can be used to explore and analyse the experience of film. Drawing on performance theory, hermeneutics, phenomenology and Bakhtin’s dialogism, Sections One and Two develop this investigation through a theoretic discussion which relates and yet distinguishes between three levels of ‘performance’ in film: filmmaking performance, performances as text and cultural performances. The theory is grounded within four films which were researched for this thesis: Once Were Warriors (Lee Tamahori, 1994), Rats in the Ranks (Bob Connolly and Robin Anderson,1996), beDevil (Tracey Moffatt, 1993) and Link-Up Diary (David MacDougall, 1987). Section Three undertakes the close analyses of the latter two films. These analyses address specific cultural performances that are performed ‘across’ cultures and which are concerned particularly with Australian society’s relationship with indigenous Australians. ...
Homonegative Microaggressions and Their Impact on Specific Dimensions of Identity Development and Self-Esteem in LGB Individuals
Creators: Wegner, Ryan Travis
Publisher: name: Columbia University
Year: 2014
Subjects: Clinical psychology

description: The current study addresses the presence of perceived homonegative microaggressions, every day verbal, behavioral, and environmental slights towards LGB individuals. The Homonegative Microaggressions Scale (HMS; Wright & Wegner, 2012) was used to measure the frequency of LGB specific microaggressions in two samples recruited through social networking sites, LGB listservs, online LGB communities, and Amazon Mechanical Turk, an online marketplace for individuals willing to complete tasks. An exploratory factor analysis was conducted on data from the first wave of 120 participants resulting in a four-factor model indicative of specific themes of microaggressions found within the HMS. A confirmatory factor analysis used on data from the second wave of 302 participants verified these findings. Additionally, the Rosenberg Self-Esteem Scale (RSES) and the Lesbian, Gay, and Bisexual Identity Scale (LGBIS) were used to assess potential outcomes of a range of specific forms of homonegative microaggressions through a multivariate multiple regression analysis. Structural equation modeling revealed four distinct themes of homonegative microaggressions including Assumed Deviance, Second-Class Citizen, Assumptions of Gay Culture, and Stereotypical Knowledge and Behavior. Clinical implications and future directions for research are also discussed.
Updating the theoretical analysis of the weak gravitational shielding experiment
Creators: name: Modanese, G.
Publisher: name: arXiv
Year: 1996
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The most recent data about the weak gravitational shielding produced recently through a levitating and rotating HTC superconducting disk show a very weak dependence of the shielding value ($\sim 1 \%$) on the height above the disk. We show that whilst this behaviour is incompatible with an intuitive vectorial picture of the shielding, it is consistently explained by our theoretical model. The expulsive force observed at the border of the shielded zone is due to energy conservation.
description: LaTex, 6 pages. Only formal changes in title and abstract
Experience and survival in migratory European Robins Erithacus rubecula and Song Thrushes Turdus philomelos negotiating the Baltic Sea
Creators: name: Snell, Katherine R. S.
name: Thorup, Kasper
Publisher: name: Taylor & Francis
Year: 2019
Subjects: subject: Medicine
subject: Evolutionary Biology
subject: FOS: Biological sciences
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Ecology

description: There were survival costs for adult European Robins Erithacus rubecula grounded at coastal sites following departure, but not for young Robins or Song Thrushes Turdus philomelos. To compare survival costs of crossing the Baltic Sea in autumn in adults and young of two passerines: the smaller European Robin and the slightly larger Song Thrush. We calculated the mortality of experienced adults and those embarking on their first migration, modelling survival in a capture-mark-recapture framework using ringing records from three bird observatories on the periphery of the Baltic Sea. We tested the subsequent age- and species-dependent 12-month interval survival of autumn migrants caught before, during and after the barrier. Survival did not differ in relation to the capture site, however, results revealed species-specific post-capture survival. Adult European Robins encountering an ecological barrier on autumn migration had lower survival probability than that of immature birds, and less than a third of adults at following intervals. Yet, in Song Thrushes, adult survival estimates were similar over all time intervals, and estimates for both age classes were comparable to those derived from breeding sites. Experienced individuals of the smaller species are likely to become grounded at the periphery of the ecological barrier as a result of physiologically limiting conditions. Species- and age-dependent survival also highlights potential inherent biases of sampling birds at coastal bird observatories.
Editorial Introduction
Creators: name: Botta, Massimo
name: Junginger, Sabine
Publisher: name: Zenodo
Year: 2021
Subjects: co-developing online conference
digital participation
common good
design

description: The editorial introduction summarizes and reflects on the activities and strategies for this uniquely co-developed conference. It revisits the work done by the authors over several months in Slack, where they met with other researchers to establish a common theme for their own session and to agreee on their 90 minute format for the conference. The results led to a highly interactive and engaged two-day conference that creates connections despite the online distance.
description: + ID der Publikation: hslu_83632 + Art des Beitrages: Buchkapitel/Beitrag in Sammelband + Herausgeberschaft: Botta, Massimo; Junginger, Sabine + Seiten: 11 - 21 + Sprache: Englisch + Letzte Aktualisierung: 2021-06-07 16:06:47
Gravitational dephasing in spontaneous emission of atomic ensembles in timed Dicke states
Creators: name: Stefanov, V.
name: Siutsou, I.
name: Mogilevtsev, D.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Here we discuss an effect of dephasing induced by a weak gravitational field on the collective radiation dynamics of an atomic system in timed single-photon Dicke states. We show that a photon absorbed by the stationary system of randomly placed stationary atoms is no longer spontaneously emitted in the direction of the impinging photon. Gravity leads to broadening of the angular distribution of emission.
description: 9 pages, 1 figure, preprint
Perfect powers in value sets and orbits of polynomials
Creators: name: Ostafe, Alina
name: Pottmeyer, Lukas
name: Shparlinski, Igor E.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics

description: We show the finiteness of perfect powers in orbits of polynomial dynamical systems over an algebraic number field. We also obtain similar results for perfect powers represented by ratios of consecutive elements in orbits. Assuming the $abc$-Conjecture for number fields, we obtain a finiteness result for powers in ratios of arbitrary elements in orbits.
description: In this version we fixed a few inaccuracies, and heavily simplified the proof of Theorem 1.2. This version is accepted for publication in the New York Journal of Mathematics
Additional file 1: of Which user errors matter during HIV self-testing? A qualitative participant observation study of men who have sex with men (MSM) in China
Creators: name: Wei, Chongyi
name: Yan, Li
name: Li, Jianjun
name: Su, Xiaoyou
name: Lippman, Sheri
name: Yan, Hongjing
Publisher: name: figshare
Year: 2018
Subjects: subject: Medicine
subject: Sociology
subject: FOS: Sociology
subject: Biological Sciences not elsewhere classified
subject: Science Policy
subject: Mental Health

description: Participant observation checklist: checklist for finger prick HIV self-test. (DOC 16 kb)
Variation in ectoparasitic sheep tick Ixodes ricinus infestation on European Golden Plover chicks Pluvialis apricaria and implications for growth and survival
Creators: name: Douglas, David J. T.
name: Pearce-Higgins, James W.
Publisher: name: Taylor & Francis
Year: 2019
Subjects: subject: Microbiology
subject: FOS: Biological sciences
subject: Genetics
subject: Ecology
subject: Sociology
subject: FOS: Sociology
subject: Immunology
subject: FOS: Clinical medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: Tick infestation increased with temperature and vegetation height, and was negatively correlated with Golden Plover Pluvialis apricaria chick survival, but not growth rates. To examine the factors associated with tick loads on Golden Plover chicks and whether tick loads correlated with the growth rate or short-term survival probability. Twenty-one chicks from eight broods were radio-tagged and recaptured at 4-day intervals to measure tick loads, growth rate and determine survival probability between recaptures. All broods and 90% of chicks (19/21) had ticks present during at least one recapture, and ticks were present on 81% (70/86) of all recaptures. Mean tick load per capture was 9.2 (range 0–45) which was 13 times higher than the only previous comparable study on wader chicks. Tick loads were highest in warmer weather and when chicks moved through areas with taller average field layer vegetation. Tick loads were also correlated with chick age and date. The chick growth rate was highest in warmer weather and at mid-altitudes (400–450 m) but showed no significant correlation with tick load. The probability of a chick surviving between recaptures was positively correlated with chick body condition and negatively correlated with tick load. This study, albeit from one site and with small sample size, recorded high tick loads on Golden Plover chicks. Although unrelated to growth rates, ticks were negatively correlated with chick survival. Further work to identify the mechanism(s) underpinning associations between tick load and survival is required. Prior to considering whether tick control is an effective and justified management for wader conservation, research should first establish whether chick mortality from ticks limits Golden Plover and other wader populations on moorland.
Parametric Statistics of Individual Energy Levels in Random Hamiltonians
Creators: name: Smolyarenko, I. E.
name: Simons, B. D.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Condensed Matter (cond-mat)
subject: Mathematical Physics (math-ph)
subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: We establish a general framework to explore parametric statistics of individual energy levels in disordered and chaotic quantum systems of unitary symmetry. The method is applied to the calculation of the universal intra-level parametric velocity correlation function and the distribution of level shifts under the influence of an arbitrary external perturbation.
description: 5 pages; published version with typos corrected
Two decades of reclamation research in the subalpine region of Alberta
Creators: name: Macyk, Terry M
name: Widtman, Z. W.
name: Betts, V.
Publisher: name: The University of British Columbia
Year: 2009

description: The Alberta Research Council has conducted a surface mine reclamation research program in association with the operations of Smoky River Coal Ltd. near Grande Cache, Alberta since 1972. The main objective of this long-term on-going study is to develop and refine methods of establishing and maintaining a vegetative cover that is in harmony with adjacent undisturbed areas. Use of appropriate materials handling techniques including coversoil replacement strategies and selection of suitable plant species combined with good management practices has resulted in the establishment of diverse plant communities that allow for different land use options. The soils reconstructed after mining are generally coarser textured, higher in pH and lower in available nutrients than unmined soils. Plot studies to determine the suitability and adaptability of various agronomic and native grasses and legumes as well as fertilization trials were established and monitored annually. Container and bare root conifer seedlings and cuttings of deciduous species were utilized initially to establish trees and shrubs in the area. Direct seeding has also proven to be a viable method for establishment of trees and shrubs in the area. Long-term monitoring results indicte that desirable agronomic species will thrive and reproduce at this elevation and that native species including trees and shrubs will invade the revegetated areas. Coarse fragment content, distance from nearest upwind seed source and slope were identified as the most significant variables influencing native species invasion of previously revegetated areas. Long-term climate monitoring data support the conclusion that climate is the most limiting factor to reclamation success in the region. Firm conclusions and recommendations regarding appropriate reclamation practices for the region can be drawn from the results of the long-term research effort and monitoring of operational reclamation. The success of reclamation in the study area is measured by the productivity achieved and the presence of and utilization by wildlife.
The statistical finite element method (statFEM) for coherent synthesis of observation data and model predictions
Creators: name: Girolami, Mark
name: Febrianto, Eky
name: Yin, Ge
name: Cirak, Fehmi
Publisher: name: arXiv
Year: 2019
Subjects: subject: Methodology (stat.ME)
subject: Numerical Analysis (math.NA)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics

description: The increased availability of observation data from engineering systems in operation poses the question of how to incorporate this data into finite element models. To this end, we propose a novel statistical construction of the finite element method that provides the means of synthesising measurement data and finite element models. The Bayesian statistical framework is adopted to treat all the uncertainties present in the data, the mathematical model and its finite element discretisation. From the outset, we postulate a data-generating model which additively decomposes data into a finite element, a model misspecification and a noise component. Each of the components may be uncertain and is considered as a random variable with a respective prior probability density. The prior of the finite element component is given by a conventional stochastic forward problem. The prior probabilities of the model misspecification and measurement noise, without loss of generality, are assumed to have zero-mean and known covariance structure. Our proposed statistical model is hierarchical in the sense that each of the three random components may depend on non-observable random hyperparameters. Because of the hierarchical structure of the statistical model, Bayes rule is applied on three different levels in turn to infer the posterior densities of the three random components and hyperparameters. On level one, we determine the posterior densities of the finite element component and the true system response using the prior finite element density given by the forward problem and the data likelihood. On the next level, we infer the hyperparameter posterior densities from their respective priors and the marginal likelihood of the first inference problem. Finally, on level three we use Bayes rule to choose the most suitable finite element model in light of the observed data by computing the model posteriors.
Topological aspects of geometrical signatures of phase transitions
Creators: name: Franzosi, Roberto
name: Casetti, Lapo
name: Spinelli, Lionel
name: Pettini, Marco
Publisher: name: arXiv
Year: 1998
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: Certain geometric properties of submanifolds of configuration space are numerically investigated for classical lattice phi^4 models in one and two dimensions. Peculiar behaviors of the computed geometric quantities are found only in the two-dimensional case, when a phase transition is present. The observed phenomenology strongly supports, though in an indirect way, a recently proposed topological conjecture about a topology change of the configuration space submanifolds as counterpart of a phase transition.
description: REVTEX file, 4 pages, 5 figures
ОЦЕНКА ВОЗМОЖНОСТИ ПРИМЕНЕНИЯ ДИФФУЗНО-ТЕНЗОРНОЙ ВИЗУАЛИЗАЦИИ И ТРАКТОГРАФИИ ДЛЯ НЕЙРОХИРУРГИЧЕСКОГО ПЛАНИРОВАНИЯ СУБКОРТИКАЛЬНЫХ ОБРАЗОВАНИЙ ГОЛОВНОГО МОЗГА У ДЕТЕЙ
Creators: name: Ахмедова, А.Р.
Publisher: name: Zenodo
Year: 2025

description: При лечении опухолей головного мозга хирургическое вмешательство остается распространенным и эффективным терапевтическим вариантом. Недавние достижения в области нейровизуализации предоставили нейрохирургам новые инструменты для преодоления проблемы дифференциации здоровой ткани от ткани, инфильтрированной опухолью, с целью повышения вероятности максимизации объема резекции при минимизации повреждения функционально важных областей.
Comparison of local structure measurements from c-axis polarized XAFS between a film and a single crystal of YBCO as a function of temperature
Creators: name: Booth, C. H.
name: Bridges, F.
name: Boyce, J. B.
name: Claeson, T.
Publisher: name: arXiv
Year: 1996
Subjects: subject: Condensed Matter (cond-mat)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We have performed fluorescence x-ray absorption fine-structure (XAFS) measurements from 20-200 K on a 5000 Å, c-axis film of YBa_2Cu_3O_{7-δ} (YBCO) on MgO (Tc=89 K) using photons polarized perpendicular to the film. These data are compared to YBCO data from a single crystal and from a film on LaAlO_3 with the same Tc. The main difference between the single crystal and the film data is that while the single crystal data is well described by a two-site axial oxygen [O(4)] distribution, we see no evidence for such a distribution in either thin film sample. We place an upper limit on the size ofan axial oxygen splitting for the film on MgO at < 0.09 Å. Therefore, the magnitude of the splitting is not directly related to Tc. Fits to the temperature dependent data from the YBCO film on MgO indicate that all bonds show a smooth change of their broadening factor σ, except the Cu-O(4) bonds, which show an increase in σin the vicinity of Tc, followed by a decrease of the same magnitude. Such a feature does not occur in diffraction measurements. Since XAFS measurements of σinclude any correlation between the atoms in a given bond, we conclude that the O(4) position becomes less correlated with the Cu positions near Tc. Correlation measurements of these and several further near-neighbors are also reported.
description: 12 page REVTEX manuscript and 10 PostScript figures
Soluble CD163 is a biomarker for accelerated atherosclerosis in systemic lupus erythematosus patients at apparent low risk for cardiovascular disease
Creators: name: C David
name: G Divard
name: R Abbas
name: B Escoubet
name: J Chezel
name: MP Chauveheid
name: D Rouzaud
name: A Boutten
name: T Papo
name: M Dehoux
name: K Sacre
Publisher: name: Taylor & Francis
Year: 2019
Subjects: subject: Physiology
subject: FOS: Biological sciences
subject: Ecology
subject: Sociology
subject: FOS: Sociology
subject: Immunology
subject: FOS: Clinical medicine
subject: 69999 Biological Sciences not elsewhere classified

description: Objective: This study aimed to determine whether sCD163, a soluble macrophage marker up-regulated in numerous inflammatory disorders, is predictive of accelerated atherosclerosis associated with systemic lupus erythematosus (SLE). Methods: Carotid ultrasound was prospectively performed, at baseline and during follow-up, in 63 consecutive SLE patients asymptomatic for cardiovascular disease (CVD) and 18 volunteer health workers. Serum sCD163 level was determined at baseline using enzyme-linked immunosorbent assay. The primary outcome was the presence of a carotid plaque. Factors associated with carotid plaques were identified through multivariate analysis. Results: Despite a low risk for cardiovascular events according to Framingham score in both groups (2.1 ± 3.8% in SLE vs 2.1 ± 2.9% in controls; p = 0.416), ultrasound at baseline showed a carotid plaque in 23 SLE patients (36.5%) and two controls (11.1%) (p = 0.039). Multivariate analysis showed that SLE status increased the risk for carotid plaque by a factor of 9 (p = 0.017). In SLE patients, sCD163 level was high (483.7 ± 260.8 ng/mL vs 282.1 ± 97.5 ng/mL in controls; p Conclusion: sCD163 is associated with progressing carotid plaque in SLE and may be a useful biomarker for accelerated atherosclerosis in SLE patients at apparent low risk for CVD.
Additional file 2 of Impaired lipid metabolism in astrocytes underlies degeneration of cortical projection neurons in hereditary spastic paraplegia
Creators: name: Mou, Yongchao
name: Dong, Yi
name: Chen, Zhenyu
name: Denton, Kyle R.
name: Duff, Michael O.
name: Blackstone, Craig
name: Zhang, Su-Chun
name: Li, Xue-Jun
Publisher: name: figshare
Year: 2020
Subjects: subject: Biochemistry
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Neuroscience
subject: Physiology
subject: Pharmacology
subject: Developmental Biology
subject: Mental Health

description: Additional file 2. Supplementary Figures 1 to 9.
Scaphobaeocera montivagans Löbl, 2011, sp. n.
Creators: name: Löbl, Ivan
Publisher: name: Zenodo
Year: 2011
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Staphylinidae
Scaphobaeocera
Scaphobaeocera montivagans

description: Scaphobaeocera montivagans sp. n.
HOLOTYPE: Ƌ, Luzon: Philippines Mt. Pangao (2350m) nr. Data Ifugao Pv. 14.VII.1985, M. Sakai leg. (MHNG).
PARATYPE: Ƌ, Luzon: Mount Data 8.I.80, J. Orousset #165 (MHNG).
DESCRIPTION: Length 1.30-1.40 mm, width 0.76-0.82 mm, dorsoventral diameter 0.82-0.87 mm. Head and body dark reddish-brown, apical part of abdominal ventrite 1 and following ventrites lighter, reddish to ochraceous, appendages light reddish-brown to yellowish. Pronotum and hypomera lacking microsculpture, elytra, lateral parts of metaventrite, mesepimera, metepisterna and abdominal ventrites distinctly microsculptured. Elytra iridescent. Pronotal and elytral punctation very fine, hardly visible at magnification 100x. Length ratio of antennomeres as: III 5: IV 8: V 10: VI 7: VII 10: VIII 7: IX 11: X 10: XI 22. Segment III thickened apically, segments IV and V slightly narrower than segment III, IV about 4 times as long as wide, V about 5 times as long as wide. Segment VI distinctly wider than segment V, about twice as long as wide. Segment VII about twice as long as wide. Segment VIII slightly narrower than segment VII, almost twice as long as wide. Segments IX to XI about as wide as segment VII, IX and X each about twice as long as wide, XI about 4.5 times as long as wide. Tip of scutellum exposed. Hypomeron with stria. Elytra with very fine parasutural striae, sutural striae starting near base, slightly curved along pronotal lobe. Middle part of metaventrite somewhat convex, not impressed apically, without stria, with dense, fairly coarse punctation and rather long pubescence. Sides of metaventrite extremely finely punctate, with fairly long pubescence. Mesocoxal lines with very fine marginal punctures not extending laterally along mesepimera; submesocoxal areas about 0.02-0.03 mm long. Metepisterna flat, with exposed portion about 0.08-0.09 mm wide, parallel-sided, with straight, deep suture. Abdomen with distinct microsculpture consisting of transverse striae. Abdominal ventrite 1 extremely finely punctate, with basal punctures fine, not elongate. Tibiae straight.
Male characters. Protarsi with segments 1 to 3 distinctly widened, narrower than protibiae.
HABITAT: Mountain broad-leaf forest, leaf and wood litter.
DISTRIBUTION: Philippines: Luzon.
 COMMENTS: This species resembles S. complicans from which it may be easily distinguished by the microsculpture pattern on the ventral side of body. The aedeagi of both males were lost. Nevertheless, the external characters of S. montivagans are unambiguously diagnostic.
description: Published as part of Löbl, Ivan, 2011, On the Scaphisomatini (Coleoptera: Staphylinidae: Scaphidiinae) of the Philippines, II, pp. 695-721 in Revue suisse de Zoologie 118 (4) on page 710, DOI: 10.5962/bhl.part.117823, http://zenodo.org/record/6312054