cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Search for top squarks in R-parity-violating supersymmetry using three or more leptons and b-tagged jets
Creators: name: The CMS Collaboration
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: A search for anomalous production of events with three or more isolated leptons and bottom-quark jets produced in pp collisions at sqrt(s) = 8 TeV is presented. The analysis is based on a data sample corresponding to an integrated luminosity of 19.5 inverse femtobarns collected by the CMS experiment at the LHC in 2012. No excess above the standard model expectations is observed. The results are interpreted in the context of supersymmetric models with signatures that have low missing transverse energy arising from light top-squark pair production with R-parity-violating decays of the lightest supersymmetric particle. In two models with different R-parity-violating couplings, top-squarks are excluded below masses of 1020 GeV and 820 GeV when the lightest supersymmetric particle has a mass of 200 GeV.
description: Replaced with published version. Added journal reference and DOI
Sex-specific trajectories of insulin resistance markers and reduced renal function during 18 years of follow-up; TLGS. Supplementary
Creators: name: Amouzegar, Atieh
name: Honarvar, Mohammadjavad
name: Masoumi, Safdar
name: Tohidi, Maryam
name: Mehran, Ladan
name: Azizi, Fereidoun
Publisher: name: figshare
Year: 2022
Subjects: Endocrinology

description: Supplementary Tables S1-S5
Fundamental Oscillation Modes in Neutron Stars with Hyperons and Delta Baryons
Creators: name: Jyothilakshmi, O. P.
name: Krishnan, P. E. Sravan
name: Sreekanth, V.
name: Chandrakar, Harsh
name: Jha, Tarun Kumar
Publisher: name: arXiv
Year: 2025
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: For a new parameterization of the modified effective chiral model, developed primarily to regulate the density content of the symmetry energy and its higher order terms, equations of state (EoSs) for hyperon-rich matter ($H$) and delta baryon matter ($Δ$) were obtained. The models were used to investigate the emission of gravitational waves (GWs) through $f$-mode oscillations in the corresponding neutron stars. We obtained the stellar structure, $f$-mode frequency and tidal deformability $Λ$ for our models. We report that the $Δ$ EoS is stiffer compared to the $H$ EoS. We also analyzed the velocity of sound in these media. The corresponding mass--radius relationships were obtained and compared with various observations. We studied the dependence of $f$-mode frequencies on the stellar mass, redshift and tidal deformability. We employed the well known Cowling approximation to obtain the $f$-mode frequencies for $l=2,\,3$ and $4$ modes of oscillation. We found that the $f$-mode frequencies of the $H$ and $Δ$ EoSs were almost the same in the lower mass region, while we observed a substantial difference between them in the high-mass region. We also obtained an empirical relation for the EoSs considered. The various attributes obtained for our models showed close agreement with various observational constraints from pulsars and GW events.
Properties of oscillation modes in subgiant stars observed by Kepler
Creators: name: Benomar, O.
name: Bedding, T. R.
name: Mosser, B.
name: Stello, D.
name: Belkacem, K.
name: Garcia, R. A.
name: White, T. R.
name: Kuehn, C. A
name: Deheuvels, S.
name: Christensen-Dalsgaard, J.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Mixed modes seen in evolved stars carry information on their deeper layers that can place stringent constraints on their physics and on their global properties (mass, age, etc...). In this study, we present a method to identify and measure all oscillatory mode characteristics (frequency, height, width). Analyzing four subgiants stars, we present the first measure of the effect of the degree of mixture on the l=1 mixed modes characteristics. We also show that some stars have measurable l=2 mixed modes and discuss the interest of their measure to constrain the deeper layers of stars.
description: Accepted to ApJ
Integrable dissipative nonlinear second order differential equations via factorizations and Abel equations
Creators: name: Mancas, Stefan C.
name: Rosu, Haret C.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We emphasize two connections, one well known and another less known, between the dissipative nonlinear second order differential equations and the Abel equations which in its first kind form have only cubic and quadratic terms. Then, employing an old integrability criterion due to Chiellini, we introduce the corresponding integrable dissipative equations. For illustration, we present the cases of some integrable dissipative Fisher, nonlinear pendulum, and Burgers-Huxley type equations which are obtained in this way and can be of interest in applications. We also show how to obtain Abel solutions directly from the factorization of second-order nonlinear equations
description: 6 pages, 7 figures, published version
Group/Individual Psychotherapy for Pregnancy Loss: an Intervention Module
Creators: name: Satapathy, Sujata
name: Sagar, Rajesh
name: Dhara Gupta
name: Devi, Usha
name: Vatsala Dadhwal
name: Yadav, Kapil
name: Singh, Archana
name: Ishita Mehta
name: Tiwari, Shraddhesh Kumar
name: Ravleen Kaur Bakshi
Publisher: name: Zenodo
Year: 2022
Subjects: Psychotherapy Module

description: Group/Individual Psychotherapy for Pregnancy Loss: An Intervention Module
Optical-radio positional offsets for active galactic nuclei
Creators: name: Orosz, G.
name: Frey, S.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: Context. It will soon become possible to directly link the most accurate radio reference frame with the Gaia optical reference frame using many common extragalactic objects. It is important to know the level of coincidence between the radio and optical positions of compact active galactic nuclei (AGN). Aims. Using the best catalogues available at present, we investigate how many AGN with significantly large optical-radio positional offsets exist as well as the possible causes of these offsets. Methods. We performed a case study by finding optical counterparts to the International Celestial Reference Frame (ICRF2) radio sources in the Sloan Digital Sky Survey (SDSS) Data Release 9 (DR9). The ICRF2 catalogue was used as a reference because the radio positions determined by Very Long Baseline Interferometry (VLBI) observations are about two orders of magnitude more accurate than the optical positions. Results. We find 1297 objects in common for ICRF2 and SDSS DR9. Statistical analysis of the optical-radio differences verifies that the SDSS DR9 positions are accurate to ~55 mas in both coordinates, with no systematic offset with respect to ICRF2. We find 51 sources (~4% of the sample) for which the positional offset exceeds 170 mas (~3σ). Astrophysical explanations must exist for most of these outliers. There are 3 known strong gravitational lenses among them. Dual AGN or recoiling supermassive black holes may also be possible. Conclusions. The most accurate Gaia-VLBI reference frame link will require a careful selection of a common set of objects by eliminating the outliers. On the other hand, the significant optical-radio positional non-coincidences may offer a new tool for finding e.g. gravitational lenses or dual AGN candidates. Detailed follow-up radio interferometric and optical spectroscopic observations are encouraged to investigate the outlier sources found in this study.
description: 10 pages, 5 figures. Accepted for publication in Astronomy & Astrophysics
Nitrogen injection into the base region of a hypersonic wake
Creators: name: Herzog, Robert T.
Publisher: name: California Institute of Technology
Year: 1964
Subjects: Aeronautics

description: An experimental investigation was made of the changes occurring in the near wake of a cylinder at M = 6.0 when nitrogen was injected into the base region. The free stream Reynolds number based on cylinder diameter was 30,000 and the rate of injection was varied from zero to 3 percent of the frontal area free stream mass flow. Pitot pressure profiles across the wake, Schlieren photographs and measurement of the boundary layer separation point on the cylinder were used to define the changes in wake geometry. Static pressure and temperature surveys were made along the wake centerline starting at the base of the cylinder and continuing downstream to X/D = 6.0. The injection reduced the recompression in the neck region and left only a slight isentropic compression in place of the strong wake shock. The recirculation of mass in the base region was eliminated with approximately 1.5 percent injection.

An automated hot wire recording system which produced data suitable for computer reduction was developed and used to measure temperature. In order to reduce the measured wire temperature to total temperature an attempt was made to use a previously developed computer program. Deficiencies in this program are discussed with suggestions for improvements.
An efficient approximate solution method for predicting the buckling of axially compressed imperfect cylindrical shells
Creators: name: Bremmer, David Franklin
Publisher: name: California Institute of Technology
Year: 1975
Subjects: Aeronautics

description: A theoretical investigation of an efficient numerical solution scheme to solve approximately the nonlinear Donnell equations for imperfect isotropic cylindrical shells with edge restraints and under axial compression was carried out.

   The nonlinear partial differential equations have been reduced to an equivalent set of nonlinear ordinary differential equations. The resulting two-point boundary value problem was solved, first, by using "Newton's Method of Quasilinearization" to obtain a set of linearized differential equations for the correction terms and, secondly, these differentials were approximated as finite differences to cast the linearized system of equations into the form of a block tridiagonal matrix equation. The Potters' Method solution scheme was used to solve efficiently the block tridiagonal matrix equation. By successive iterations a solution to the set of nonlinear ordinary differential equations was obtained.

   The use of this method makes it possible to investigate how the axial load level at the limit point is affected by the following factors: the choice of inplane boundary conditions, the prebuckling growth caused by the radial edge constraint, the orientation and shape of the axisymmetric and asymmetric imperfection components, and the finite length of the shell.
An experimental investigation of the equilibrium interface technique
Creators: name: Copper, John Alan
Publisher: name: California Institute of Technology
Year: 1961
Subjects: Aeronautics

description: The equilibrium interface technique has been suggested as a possible shock tunnel driver method. If this technique is workable, reservoir enthalpy levels can be increased substantially over those obtainable with the tailored interface technique without any physical modification of the shock tube. In order to determine the feasibility of the equilibrium interface technique as a shock tunnel driver method, experiments were performed in a shock tube, utilizing a cold helium driver, over the shock Mach number range 3.29 to 7.26.

Pressure histories were measured at the end of the driven tube; this pressure was found to reach an equilibrium condition for the complete shock Mach number range investigated. From the pressure histories the equilibrium pressure, time to reach equilibrium, and test time were determined. Measured equilibrium pressures were compared with an exact theory and two approximate theories. From the measured equilibrium pressure, the equilibrium enthalpy level was computed. The maximum equilibrium enthalpy was more than six times the reservoir enthalpy produced using the tailored interface technique.
Feasibility of Implementing a Modified SENSE Program to Increase Positive Sensory Experiences for Preterm Infants in the Neonatal Intensive Care Unit (NICU): A Pilot Study
Creators: name: de Castro, Kate N.
name: Benson, Jeryl D.
name: Thomas, Hillary
name: Manuel, Vinit
name: Mitra, Sanjay
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: Biophysics
subject: Medicine
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Inorganic Chemistry
subject: FOS: Chemical sciences
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences

description: To evaluate the feasibility of implementing the Supporting and Enhancing NICU Sensory Experiences (SENSE) program with adaptations to increase positive sensory exposure for infants born preterm, support neonatal neurodevelopment, and decrease parent stress. Eight infants born between 28 and 33 weeks were recruited within one week of birth. Parents, trained in the program, delivered the SENSE protocol. The first author provided up to 1 h of sensory input on weekdays when a parent could not be present. Recruitment and retention rates were 87.5% and 100%, respectively. Recruitment and initial parent education and training averaged 37.5 min. On average, parents were present in the NICU 85.1% of days; they participated in SENSE for an average of 515.5 min. SENSE dose recommendations were not consistently met. Weekly infant assessments and regular parent check ins averaged 22.5 and 13.8 min, respectively. Post-assessments revealed normal scores on a neurodevelopmental assessment, low parent stress, and high parent satisfaction. The recruitment and retention rates suggest high demand to participate. Outcomes for parent stress and neonatal neurodevelopment support continuation of SENSE. Time commitment for implementation, coupled with supporting families in meeting dose recommendations, suggest a need for a neonatal therapist to promote sustainability.
Integrable Quantum Hydrodynamics in Two Dimensional Phase Space
Creators: name: Bettelheim, Eldad
Publisher: name: arXiv
Year: 2013
Subjects: subject: Mathematical Physics (math-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: FOS: Physical sciences

description: Quantum liquids in two dimensions represent interesting dynamical quantum systems for several reasons, among them the possibility of the existence of infinite hidden symmetries, such as conformal symmetry or the symmetry associated with area preserving diffeo-morphisms. It is known that when the symmetry algebra is large enough, symmetry may fully prescribe the dynamics. However, the way this is borne out in two dimensional hydrodynamics, both classical and quantum, is not fully understood. Here we take a step in clarifying this issue, by focusing on a particular example, namely that of a two dimensional phase space liquid which emerges when one considers the Calogero model, a many-body one-dimensional system interacting through an inverse square law potential. We demonstrate how the symmetry algebra of conserved quantities of the one dimensional system is expressed in terms of the incompressible Euler hydrodynamics of point vortices in phase space. Due to a formal relation between quantum hydrodynamics and classical stochastic hydrodynamics, which is inherent in the method of stochastic quantization, the ideas and methods developed here may also have application in the study of stochastic classical hydrodynamics, after suitable modifications.
description: Typos corrected. References added
Perceive, Recall, Plan and Perform (PRPP)-Assessment Based on Parent-Provided Videos of Children with Mitochondrial Disorder: Action Design Research on Implementation Challenges
Creators: name: Lindenschot, Marieke
name: Groot, Imelda J.M.de
name: der Sanden, Maria W.G. Nijhuis-van
name: Steultjens, Esther M.J.
name: Graff, Maud J.L.
name: Koene, Saskia
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Performing the Perceive, Recall, Plan and Perform (PRPP)-Assessment, using video material of everyday life, seems sensible to lower the patient burden, enhance ecological validity, and provide care at a distance. However, receipt of adequate video material is not self-evident and assessing videos can be challenging. Therefore, this study aims to optimize the process of gaining video material and to optimize the PRPP-Assessment based on parent-provided videos. An action design research method was used, focusing on implementation of the PRPP-Assessment based on parent-provided videos within the care of children with a mitochondrial disorder or similar symptoms. Five cycles were conducted. To receive input, the cycles used videos of nine children performing activities, written feedback, and semi-structured interviews and focus groups comprising parents (n = 13), a teacher (n = 1), occupational therapists (n = 16), and other professionals (n = 2) . This led to successful implementation of the PRPP-Assessment. General lessons were learned on (1) instructing parents; (2) handling video material; (3) PRPP-Assessment based on parent-provided videos; and (4) PRPP-Assessment of children (with limited functional abilities). Lessons learned should be implemented in practice and are incorporated into a manual to guide the implementation of video-based observations with PRPP-Assessment in practice.
Die Glasmalereien von 1508 und 1509 im Kölner Dome und ihre Meister
Creators: name: Merlo, Johann Jakob
Publisher: name: Bonner Jahrbücher
Year: 2017

description: [nicht vorhanden / not available]
description: Bonner Jahrbücher, Bd. 60 (1877): Jahrbücher des Vereins von Alterthumsfreunden im Rheinlande
Instructions for Administering the Canadian Occupational Performance Measure with Children Themselves
Creators: name: Verkerk, Gijs
name: van der Molen-Meulmeester, Lisanne
name: van Hartingsveldt, Margo
name: Alsem, Mattijs
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences
subject: Science Policy

description: The Canadian Occupational Performance Measure (COPM) can be used to support children to clarify their needs themselves. However, for pediatric occupational therapists it is not sufficiently clear how to effectively use the COPM with children from 8 years of age. This study aimed to formulate specific instructions for using the COPM with children themselves, based on the experience of children, parents, and occupational therapists. In addition, professional consensus on the instructions was reached. A multi-stage approach was used to develop the instructions. Triangulation of methods was used to gather knowledge of how the COPM with children themselves is performed in daily practice: interviews with 23 children, questionnaires completed by 30 parents, interviews with 13 therapists, and 10 video recordings of COPM administration. Specific instructions were derived from this knowledge and consensus for these instructions was reached by Delphi method. The data were analyzed and resulted in 40 specific instructions. Consensus of at least 80% amongst 10 occupational therapists, who regularly use the COPM with children, was achieved on each instruction. There is consensus on 40 specific instructions for administering the COPM with children. Following these instructions might help children to formulate their own goals for intervention.
Dynamics of Few Co-rotating Vortices in Bose-Einstein Condensates
Creators: name: Navarro, R.
name: Carretero-Gonzalez, R.
name: Torres, P. J.
name: Kevrekidis, P. G.
name: Frantzeskakis, D. J.
name: Ray, M. W.
name: Altunta, E.
name: Hall, D. S.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Pattern Formation and Solitons (nlin.PS)
subject: FOS: Physical sciences

description: We study the dynamics of small vortex clusters with few (2--4) co-rotating vortices in Bose-Einstein condensates by means of experiments, numerical computations, and theoretical analysis. All of these approaches corroborate the counter-intuitive presence of a dynamical instability of symmetric vortex configurations. The instability arises as a pitchfork bifurcation at sufficiently large values of the angular momentum that induces the emergence and stabilization of asymmetric rotating vortex configurations. The latter are quantified in the theoretical model and observed in the experiments. The dynamics is explored both for the integrable two-vortex system, where a reduction of the phase space of the system provides valuable insight, as well as for the non-integrable three- (or more) vortex case, which additionally admits the possibility of chaotic trajectories.
description: 9 pages, 6 figures
Der Doctor Ypocras des deutschen Schauspiels in Wort und Bild
Creators: name: Kinkel, Gottfried
Publisher: name: Bonner Jahrbücher
Year: 2017

description: [nicht vorhanden / not available]
description: Bonner Jahrbücher, Bd. 60 (1877): Jahrbücher des Vereins von Alterthumsfreunden im Rheinlande
Dealing with experienced injustice - A smartphone study
Creators: name: Jüngert, Anne
name: Kammermeier, Katja
name: Wippermann, Paula
name: Knabe, Max
name: McTassney, Michelle
name: Tran, Hoang Long
name: Weber, Emily
name: Bergunde, Franca
Publisher: name: OSF Registries
Year: 2023
Subjects: subject: Social Psychology
subject: Social and Behavioral Sciences
subject: Psychology
subject: FOS: Psychology

description: Victim sensitivity relates to norm-violating, uncooperative, and anti-social behaviour as well as to negative health outcomes. Moreover, it is associated with rumination about perceived injustice (cognitive component) on the one hand, and the emotional reaction to perceived injustice (affective component) on the other hand. We developed two interventions to reduce victim sensitivity by addressing its cognitive and affective components: A mindfulness-based intervention and a perspective-taking intervention. In this study, we will test whether the mindfulness-based intervention will reduce victim sensitivity via the reduction of rumination about perceived injustice and whether the perspective-taking intervention will reduce victim sensitivity via the reduction of emotional reactivity to perceived injustice. The interventions will be conducted daily over a period of 6 days. We will use the experience sampling method to examine the effects of these interventions.
Higgs-Dilaton Cosmology: an effective field theory approach
Creators: name: Bezrukov, Fedor
name: Karananas, Georgios K.
name: Rubio, Javier
name: Shaposhnikov, Mikhail
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The Higgs-Dilaton cosmological model is able to describe simultaneously an inflationary expansion in the early Universe and a dark energy dominated stage responsible for the present day acceleration. It also leads to a non-trivial relation between the spectral tilt of scalar perturbations n_s and the dark energy equation of state ω. We study the self-consistency of this model from an effective field theory point of view. Taking into account the influence of the dynamical background fields, we determine the effective cut-off of the theory, which turns out to be parametrically larger than all the relevant energy scales from inflation to the present epoch. We finally formulate the set of assumptions needed to estimate the amplitude of the quantum corrections in a systematic way and show that the connection between n_s and ωremains unaltered if these assumptions are satisfied.
description: typos corrected, references and appendix added, published version
Strategies to Support Learning of Gross Motor Tasks in Children with Autism Spectrum Disorder: A Scoping Review
Creators: name: Holloway, Jamie M.
name: Tomlinson, Stephanie M.
name: Hardwick, Dustin D.
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: Medicine
subject: Neuroscience
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences
subject: Computational Biology

description: Children with autism spectrum disorder (ASD) display motor difficulties that may impact social and communication interactions and participation in everyday activities. These difficulties may be related to a difference in the way they learn new skills. Therefore, strategies to support motor learning to optimize skill acquisition and retention may be beneficial. This scoping review described current motor learning strategies used to optimize acquisition, retention, transfer, and generalizability of motor tasks in children with ASD. Three databases were searched from inception through 2021. Studies were included if they involved participants with ASD ≤ 18 years old, evaluated learning of a novel gross motor task, manipulated a motor learning variable, and were written in English. Twenty-two articles met eligibility criteria. Most articles examined strategies that manipulated the instruction of task, with few articles examining feedback or practice. Skill acquisition was the most represented motor learning outcome, with fewer studies examining retention, transfer, or generalizability. Positive results in 95% of the articles suggest that the use of support strategies to optimize motor learning is feasible and beneficial for children with ASD, and that modifications to instruction, feedback, and practice schedules should be considered in motor interventions.
MPEC 2023-M65 : COMET P/2023 M1 (PANSTARRS)
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2023
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469
subject: COMET P/2023 M1 (PANSTARRS)

description: The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements.  They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
Discussion of two specialized aircraft propeller problems
Creators: name: McCoy, Howard Monroe
name: Longfelder, Harlowe Julius
Publisher: name: California Institute of Technology
Year: 1941
Subjects: Aeronautics
Aeronautical Engineering

description: Part I: Governing and Synchronization
The design and construction of an aircraft propeller governor or synchronizer is a specialized problem concerning Servo-Mechanism Theory. Search developed that adequate theory existed to cover the specific variables involved. The sources used in this report are listed in the extensive bibliography. Short descriptions are presented of the various governing and synchronizing means used to control present day propellers. In this research an airplane engine-propeller system was simulated and a single unit of a synchronizer, suitable for use as a governor for one engine, was invented and constructed. It was demonstrated to meet the United States Army Air Corps tentative specifications for propeller  synchronizers. Time and unavailability of material and overworked shop facilities did not permit the construction of a model for full scale multi-motored airplane test. It is contemplated that such a model will later be constructed at the Materiel Division, United States Air Corps, Wright Field, Dayton, Ohio. A detailed description of this invention is presented in Appendix I. A discussion is presented of the general servo-mechanism theory as applied to airplane propeller governors and synchronizers. In addition, a short discussion is presented of how synchronization of propellers influences the tactical employment of military aircraft. The physiological effect on occupants of aircraft is also shortly discussed.

Part II: Effect of Variable Engine Reduction Gearing on Aircraft Performance
The demand for improved performance in aircraft has led through the years to the development of more efficient propulsive systems, starting with the fixed pitch propeller directly driven from the engine and progressing to the modern geared constant speed variable pitch propeller. This development and the reasons for it are briefly described. The continued increase in performance leads to the two speed reduction gear and finally to the continuously variable reduction gear combined with the constant speed variable pitch propeller.  The possible advantages of such an installation and the reasons for these advantages are described. Two examples of modern military airplanes are used to illustrate in detail the gains in performance that may be obtained. The extension to probable developments in airplanes to be built in the near future is considered. Mechanical difficulties and control problems are briefly discussed.
Measuring technical, environmental and eco-efficiency in municipal solid waste management in Chile
Creators: name: Sala-Garrido, Ramon
name: Mocholi-Arce, Manuel
name: Molinos-Senante, Maria
name: Maziotis, Alexandros
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: Biophysics
subject: Space Science
subject: Biotechnology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Ecology
subject: FOS: Biological sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: Science Policy

description: Moving towards a circular and sustainable economy requires improving the management of municipal solid waste (MSW) increasing recycling rates while minimising unsorted waste and operational costs. It is essential to evaluate the economic and environmental efficiency of MSW services. Previous studies focused on developed countries and employed radial parametric and non-parametric methods. By contrast, this study assessed the technical efficiency, environmental efficiency and eco-efficiency of several Chilean municipalities employing the non-radial range adjusted measure approach. A second stage of assessment was conducted to explore the influence of a set of environmental variables on efficiency scores. Results revealed that the evaluated Chilean municipalities performed poorly from a technical perspective since the average technical efficiency score was 0.484. By contrast, average environmental efficiency and eco-efficiency scores were 0.899 and 0.922, respectively. Nevertheless, the percentage of eco-efficient municipalities was lower than 1%. It was also found that tourism had a major and negative impact on all types of efficiency. By contrast, population density had a significant and positive impact on environmental efficiency. The assessment of three types of efficiency provides relevant information to policymakers to define specific strategies to improve MSW management according to sustainability and circular economic objectives.
Multiloop integrals in dimensional regularization made simple
Creators: name: Henn, Johannes M.
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Scattering amplitudes at loop level can be expressed in terms of Feynman integrals. The latter satisfy partial differential equations in the kinematical variables. We argue that a good choice of basis for (multi-)loop integrals can lead to significant simplifications of the differential equations, and propose criteria for finding an optimal basis. This builds on experience obtained in supersymmetric field theories that can be applied successfully to generic quantum field theory integrals. It involves studying leading singularities and explicit integral representations. When the differential equations are cast into canonical form, their solution becomes elementary. The class of functions involved is easily identified, and the solution can be written down to any desired order in epsilon within dimensional regularization. Results obtained in this way are particularly simple and compact. In this letter, we outline the general ideas of the method and apply them to a two-loop example.
description: 4 pages, 1 figure; v2: discussion of boundary conditions improved, minor changes, to be published in PRL
Inschriftliches aus Heidelberg unter besonderer Berücksichtigung keltischer Namen auf rheinischen Inschriften
Creators: name: Christ, Karl
Publisher: name: Bonner Jahrbücher
Year: 2017

description: [nicht vorhanden / not available]
description: Bonner Jahrbücher, Bd. 63 (1878): Jahrbücher des Vereins von Alterthumsfreunden im Rheinlande
Sabine Fourrier, La coroplastie chypriote archaïque. Identités culturelles et politiques à l’époque des royaumes
Creators: name: Kleibl, Kathrin
Publisher: name: Bonner Jahrbücher
Year: 2017

description: Rezension zu: Sabine Fourrier, La coroplastie chypriote archaïque. Identités culturelles et politiques à l’époque des royaumes. Travaux de la Maison de l’orient et de la Méditerranée, Band 46. Maison de l’orient et de la Méditerranée, Lyon 2007. 196 Seiten, 9 Abbildungen, diverse Tabellen, 24 Tafeln
description: Bonner Jahrbücher, Bd. 208.2008(2010): Bonner Jahrbücher
Partner Symmetries, Group Foliation and ASD Ricci-Flat Metrics without Killing Vectors
Creators: name: Sheftel, Mikhail B.
name: Malykh, Andrei A.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Mathematical Physics (math-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: FOS: Physical sciences
subject: 35Q75, 83C15

description: We demonstrate how a combination of our recently developed methods of partner symmetries, symmetry reduction in group parameters and a new version of the group foliation method can produce noninvariant solutions of complex Monge-Ampère equation (CMA) and provide a lift from invariant solutions of CMA satisfying Boyer-Finley equation to non-invariant ones. Applying these methods, we obtain a new noninvariant solution of CMA and the corresponding Ricci-flat anti-self-dual Einstein-Kähler metric with Euclidean signature without Killing vectors, together with Riemannian curvature two-forms. There are no singularities of the metric and curvature in a bounded domain if we avoid very special choices of arbitrary functions of a single variable in our solution. This metric does not describe gravitational instantons because the curvature is not concentrated in a bounded domain.
Aenne Ohnesorg, Der Kroisos-Tempel. Neue Forschungen zum archaischen Dipteros der Artemis von Ephesos
Creators: name: Wesenberg, Burkhardt
Publisher: name: Bonner Jahrbücher
Year: 2017

description: Rezension zu: Aenne Ohnesorg, Der Kroisos-Tempel. Neue Forschungen zum archaischen Dipteros der Artemis von Ephesos. Forschungen in Ephesos, Band XII4. Verlag der Österreichischen Akademie der Wissenschaften, Wien 2007. XVIII und 142 Seiten, 29 Abbildungen, 80 Tafeln, 21 Tabellen, 1 Planbeilage
description: Bonner Jahrbücher, Bd. 208.2008(2010): Bonner Jahrbücher
Mobility-enhanced signal response in metapopulation networks of coupled oscillators
Creators: name: Shen, Chuansheng
name: Chen, Hanshuang
name: Hou, Zhonghuai
Publisher: name: arXiv
Year: 2013
Subjects: subject: Physics and Society (physics.soc-ph)
subject: Adaptation and Self-Organizing Systems (nlin.AO)
subject: FOS: Physical sciences

description: We investigate the effect of mobility on the response of coupled oscillators to a subthreshold external signal in metapopulation networks, wherein each node represents a subpopulation with overdamped bistable oscillators that can randomly diffuse between nodes. With increasing mobility rate, the oscillators undergo transitions from intrawell to interwell motion, demonstrating clearly mobility-enhanced signal amplification. Moreover, the response shows nonmonotonic dependence on the mobility rate, i.e., a maximal gain occurs at a moderate level of mobility. This interesting phenomenon is robust against variations in the overall density, network size, as well as network topology. In addition, a simple mean-field analysis is carried out to qualitatively illustrate the simulation results.
description: 5 pages, 5 figures
Seismic deformation analysis of earth dams : a simplified method
Creators: name: Yan, Liping
Publisher: name: California Institute of Technology
Year: 1992
Subjects: subject: earth dams
subject: Civil Engineering
subject: FOS: Civil engineering

description: Motivated by the dynamic behaviors of two earth dams, named La Villita Dam and El Infiernillo Dam in Mexico, during an earthquake on September 19, 1985, a seismic deformation analysis is elaborated in this study.

Firstly, a simplified method is developed by applying a rigid block model to study the major characteristics of an earth dam during an earthquake and calculate the seismic permanent displacements. In this method, the sliding mass is modeled as a rigid body along a well defined surface. Both inclined plane and circular arc slip surfaces are considered.

Secondly, in order to validate the numerical procedure of the simplified method and study the dynamic response of the rigid block on an inclined plane experimentally, shaking table tests are performed on the model used in the simplified method. Comprehensive numerical simulations are carried out with the computer programs developed, and comparisons with the test results are made.

Finally, applying the developed method to La Villita Dam and El Infiernillo Dam, seismic deformation analyses are carried out. In addition, an attempt to reproduce some of the motions recorded on La Villita Dam during the 1985 earthquake is made in this study.
Cosmology with a Continuous Tower of Scalar Fields
Creators: name: Jiménez, Jose Beltrán
name: Mota, David F.
name: Santos, Paulo
Publisher: name: arXiv
Year: 2012
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We study the cosmological evolution for a universe in the presence of a continuous tower of massive scalar fields which can drive the current phase of accelerated expansion of the universe and, in addition, can contribute as a dark matter component. The tower consists of a continuous set of massive scalar fields with a gaussian mass distribution. We show that, in a certain region of the parameter space, the {\it heavy} modes of the tower (those with masses much larger than the Hubble expansion rate) dominate at early times and make the tower behave like the usual single scalar field whose coherent oscillations around the minimum of the potential give a matter-like contribution. On the other hand, at late times, the {\it light} modes (those with masses much smaller than the Hubble expansion rate) overcome the energy density of the tower and they behave like a perfect fluid with equation of state ranging from 0 to -1, depending on the spectral index of the initial spectrum. This is a distinctive feature of the tower with respect to the case of quintessence fields, since a massive scalar field can only give acceleration with equation of state close to -1. Such unique property is the result of a synergy effect between the different mass modes. Interestingly, we find that, for some choices of the spectral index, the tower tracks the matter component at high redshifts (or it can even play the role of the dark matter) and eventually becomes the dominant component of the universe and give rise to an accelerated expansion.
description: 13 pages, 8 figures. V2: minor changes to match published version
Klaus Junker e Adrian Stähli (ed.), Original und Kopie. Formen und Konzepte der Nachahmung in der antiken Kunst
Creators: name: Papini, Massimiliano
Publisher: name: Bonner Jahrbücher
Year: 2017

description: Rezension zu: Klaus Junker e Adrian Stähli (ed.), Original und Kopie. Formen und Konzepte der Nachahmung in der antiken Kunst. Con la collaborazione di Christian Kunze. Atti del colloquio Berlino 17.–19. febbraio 2005. Casa editrice Dr. Ludwig Reichert, Wiesbaden 2008. 272 pagina, 67 tavole
description: Bonner Jahrbücher, Bd. 208.2008(2010): Bonner Jahrbücher
Silvia Nolte, Steinbruch–Werkstatt–Skulptur. Untersuchungen zu Aufbau und Organisation griechischer Bildhauerwerkstätten
Creators: name: Pfanner, Michael
Publisher: name: Bonner Jahrbücher
Year: 2017

description: Rezension zu: Silvia Nolte, Steinbruch–Werkstatt–Skulptur. Untersuchungen
zu Aufbau und Organisation griechischer Bildhauerwerkstätten. Beihefte zum göttinger Forum für Altertumswissenschaft, Band 18. Verlag R. Ruprecht,
Göttingen o. J. [2006], zweite Auflage 2009. 320 Seiten, 118 Tafeln mit 317 Abbildungen
description: Bonner Jahrbücher, Bd. 208.2008(2010): Bonner Jahrbücher
An Introductory Study on Time Series Modeling and Forecasting
Creators: name: Adhikari, Ratnadip
name: Agrawal, R. K.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Machine Learning (cs.LG)
subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences
subject: 68T01

description: Time series modeling and forecasting has fundamental importance to various practical domains. Thus a lot of active research works is going on in this subject during several years. Many important models have been proposed in literature for improving the accuracy and effectiveness of time series forecasting. The aim of this dissertation work is to present a concise description of some popular time series forecasting models used in practice, with their salient features. In this thesis, we have described three important classes of time series models, viz. the stochastic, neural networks and SVM based models, together with their inherent forecasting strengths and weaknesses. We have also discussed about the basic issues related to time series modeling, such as stationarity, parsimony, overfitting, etc. Our discussion about different time series models is supported by giving the experimental forecast results, performed on six real time series datasets. While fitting a model to a dataset, special care is taken to select the most parsimonious one. To evaluate forecast accuracy as well as to compare among different models fitted to a time series, we have used the five performance measures, viz. MSE, MAD, RMSE, MAPE and Theil's U-statistics. For each of the six datasets, we have shown the obtained forecast diagram which graphically depicts the closeness between the original and forecasted observations. To have authenticity as well as clarity in our discussion about time series modeling and forecasting, we have taken the help of various published research works from reputed journals and some standard books.
description: 67 pages, 29 figures, 33 references, book
Feasibility Study of Wave Power in Ghana
Creators: name: Tulashie, Samuel Kofi
name: Odai, Raphael
name: Dahunsi, Adeola Michael
name: Atisey, Sandra
name: Amenakpor, Jacking
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: 29999 Physical Sciences not elsewhere classified
subject: FOS: Physical sciences
subject: Medicine
subject: Physiology
subject: FOS: Biological sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics
subject: Inorganic Chemistry
subject: Science Policy
subject: Plant Biology

description: In this research, the evaluation of Ghana’s wave energy potential was presented based on the ERA5 monthly averaged data on single levels from 1979 to 2020 from European Centre for Medium-Range Weather Forecast (ECMWF). The data obtained which was the Significant Wave Height and Wave Period were used to calculate the Average Wave Power and Energy. The total wave power crossing the three divisions of Ghana’s coastline has been calculated to be 7215 MW. The calculated wave energy available was compared to the Annual Energy Demand of Ghana. The calculated value gives a clear picture that wave energy can be another renewable energy source in Ghana. This was done relying on data from a third-generation spectral wave model to simulate the wave conditions which were used to analyse the potential of the wave-generated energy of the selected coastal areas in Ghana.
Design and operation of ARGONTUBE: a 5 m long drift liquid argon TPC
Creators: name: Ereditato, A.
name: Hsu, C. C.
name: Janos, S.
name: Kreslo, I.
name: Messina, M.
name: von Rohr, C. Rudolf
name: Rossi, B.
name: Strauss, T.
name: Weber, M. S.
name: Zeller, M.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: The Liquid Argon Time Projection Chamber (LArTPC) is a prime type of detector for future large-mass neutrino observatories and proton decay searches. In this paper we present the design and operation, as well as experimental results from ARGONTUBE, a LArTPC being operated at the AEC-LHEP, University of Bern. The main goal of this detector is to prove the feasibility of charge drift over very long distances in liquid argon. Many other aspects of the LArTPC technology are also investigated, such as a voltage multiplier to generate high voltage in liquid argon (Greinacher circuit), a cryogenic purification system and the application of multi-photon ionization of liquid argon by a UV laser. For the first time, tracks induced by cosmic muons and UV laser beam pulses have been observed and studied at drift distances of up to 5m, the longest reached to date.
Pulsed neutron measurements in two adjacent finite media
Creators: name: Giraudbit, Georges P.
Publisher: name: California Institute of Technology
Year: 1966
Subjects: subject: Mechanical Engineering
subject: FOS: Mechanical engineering

description: The pulsed neutron technique has been used to investigate the decay of thermal neutrons in two adjacent water-borated water finite media.  Experiments were performed with a 6x6x6 inches cubic assembly divided in two halves by a thin membrane and filled with pure distilled water on one side and borated water on the other side.

The fundamental decay constant was measured versus the boric acid concentration in the poisoned medium.  The experimental results showed good agreement with the predictions of the time dependent diffusion model.  It was assumed that the addition of boric acid increases the absorption cross section of the poisoned medium without affecting its diffusion properties: In these conditions, space-energy separability and the concept of an “effective” buckling as derived from diffusion theory were introduced.  Their validity was supported by the experimental results.

Measurements were performed with the absorption cross section of the poisoned medium increasing gradually up to 16 times its initial value.  Extensive use of the IBM 7090-7094 Computing facility was made to analyze properly the decay data (Frantic Code).  Attention was given to the count loss correction scheme and the handling of the statistics involved.  Fitting of the experimental results into the analytical form predicted by the diffusion model led to

Ʃav    = 4721 sec-1    (±150)

Do     = 35972 cm2sec-1 (±800) for water at 21˚C

C (given)    = 3420 cm4sec-1

These values, when compared with published data, show that the diffusion model is adequate in describing the experiment.