cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
"Stop Bullying Now!" Sosialisasi Anti Bullying Sebagai Upaya Mencegah Perilaku Bullying Pada Siswa SMP Negeri 6 Kuantan Mudik
Creators: name: Nofrizal, Anisha Tri Wardhani, Aurelia Daffa, Febriani Heriyani, Fransa Juve Jonatan, M.Irfan Delfino, Meutia Rhamadani, Nadya Monica Manalu, Noval Muhammad Ikram, Rohana Elyzabeth, Yuda Manggala
Publisher: name: Zenodo
Year: 2024

description: Program sosialisasi anti-bullying yang dilakukan oleh kelompok Kuliah Kerja Nyata Desau Ulai di SMP Negeri 6 Kuantan Mudik merupakan inisiatif penting untuk meningkatkan kesadaran dan mencegah tindakan bullying di lingkungan sekolah. Sosialisasi ini bertujuan untuk mengedukasi siswa mengenai definisi bullying, berbagai bentuknya, dan dampak negatif yang ditimbulkan baik bagi korban maupun pelaku. Melalui pemaparan materi yang interaktif, sesi tanya jawab, dan distribusi leaflet, siswa diberikan informasi yang jelas dan praktis tentang cara mengenali, mencegah, dan menangani bullying. Hasil program ini memiliki dampak positif yakni memberikan edukasi yang lebih mendalam dan praktis kepada siswa tentang pentingnya menghentikan bullying. Disarankan untuk terus mengadakan sosialisasi secara berkala, memperkuat kebijakan anti-bullying, dan mempromosikan budaya sekolah yang menghargai perbedaan untuk mengurangi kasus bullying di masa depan.
The milling process monitoring using 3D envelope method
Creators: name: Bisu, Claudiu-Florinel
name: Gérard, Alain
name: Zapciu, Miron
name: Cahuc, Olivier
Publisher: name: arXiv
Year: 2012
Subjects: subject: Other Computer Science (cs.OH)
subject: FOS: Computer and information sciences

description: This paper proposes a method to vibration analysis in order to on-line monitoring of milling process quality. Adapting envelope analysis to characterize the milling tool materials is an important contribution to the qualitative and quantitative characterization of milling capacity and a step by modeling the three-dimensional cutting process. An experimental protocol was designed and developed for the acquisition, processing and analyzing three-dimensional signal. The vibration envelope analysis is proposed to detect the cutting capacity of the tool with the optimization application of cutting parameters. The research is focused on Hilbert transform optimization to evaluate the dynamic behavior of the machine/ tool/workpiece.
title: Unified Approach to Ship Seakeeping and Maneuvering by a RANSE Method
title: Berechnungsverfahren für das Seegangs- und Manövrierverhalten von Schiffen nach der RANSE Methode
titleType: AlternativeTitle
Creators: name: Xing-Kaeding, Yan
Publisher: name: TUHH Universitätsbibliothek
Year: 2006
Subjects: subject: RANSE
subject: Seegangsverhalten
subject: rigid body motion
subject: ship maneuver
subject: free surface
classificationCode: 620
subject: Ingenieurwissenschaften
classificationCode: 55.40
subject: Schiffstechnik, Schiffbau
subject: Manöver
subject: Numerische Strömungssimulation
subject: Seegang

description: Es wird ein Berechnungsverfahren fuer das Seegangs- und Manoevrierverhalten von Schiffen dargestellt. Das Verfahren beruht auf einer gekoppelten interativen Loesung der Bewegungsgleichung mit sechs Freiheitsgraden eines Koerpers mit RANSE, welche die turbulente Stroemung beschreibt. Die Ergebnisse zeigen eine gute Uebereinstimmung mit experimentellen Versuchen.
description: In this work, a computation procedure for the prediction of motion of rigid bodies floating in viscous fluids and subjected to currents and waves is presented. The procedure is based on a coupled iterative solution of the 6-DOF rigid body motion equation and the RANSE, describing the turbulent fluid flow. The method is extented to more complex ship maneuvering applications and the comparison with experiments shows promising agreement.
Performance analysis and optimal selection of large mean-variance portfolios under estimation risk
Creators: name: Rubio, Francisco
name: Mestre, Xavier
name: Palomar, Daniel P.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Portfolio Management (q-fin.PM)
subject: Information Theory (cs.IT)
subject: FOS: Economics and business
subject: FOS: Computer and information sciences

description: We study the consistency of sample mean-variance portfolios of arbitrarily high dimension that are based on Bayesian or shrinkage estimation of the input parameters as well as weighted sampling. In an asymptotic setting where the number of assets remains comparable in magnitude to the sample size, we provide a characterization of the estimation risk by providing deterministic equivalents of the portfolio out-of-sample performance in terms of the underlying investment scenario. The previous estimates represent a means of quantifying the amount of risk underestimation and return overestimation of improved portfolio constructions beyond standard ones. Well-known for the latter, if not corrected, these deviations lead to inaccurate and overly optimistic Sharpe-based investment decisions. Our results are based on recent contributions in the field of random matrix theory. Along with the asymptotic analysis, the analytical framework allows us to find bias corrections improving on the achieved out-of-sample performance of typical portfolio constructions. Some numerical simulations validate our theoretical findings.
Berechnung der hydrodynamischen Kräfte, die auf einen eine Rollbewegung mit großer Amplitude ausführenden schwimmenden Körper wirken
Creators: name: Grim, Otto
Publisher: name: TUHH Universitätsbibliothek
Year: 1978
Subjects: classificationCode: 52.00
subject: Maschinenbau, Energietechnik, Fertigungstechnik: Allgemeines

description: Berechnung der hydrodynamischen Kräfte, die auf einen eine Rollbewegung mit großer Amplitude ausführenden schwimmenden Körper wirken
Untersuchung neuartiger Schwimmkörper als Träger- und Arbeitsgeräte für Offshore-Operationen
Creators: name: Licht, Joachim
name: Ochocinski, Blazej
Publisher: name: TUHH Universitätsbibliothek
Year: 1991
Subjects: classificationCode: 52.00
subject: Maschinenbau, Energietechnik, Fertigungstechnik: Allgemeines

description: Untersuchung neuartiger Schwimmkörper als Träger- und Arbeitsgeräte für Offshore-Operationen: Für die hydrodynamische Analyse hat sich die Paneel-Methode als am besten geeignet erwiesen. Die hierbei gewonnenen Ergebnisse finden ihre Anwendung sowohl in der Analyse des Seeverhaltens (hydrodynamische Erregungskräfte und -momente, hydrodynamische Trägheits- und Dämpfungskoeffizienten) als auch in der Strukturanalyse (instationäre Druckverteilung). Die Potentialtheorie liefert jedoch keine brauchbaren Ergebnisse für schlanke und dünne Strukturelemente. Hierbei wird für die Praxis die Anwendung empirischer Ansätze empfohlen. Für die Festigkeitsanalyse neuartiger Schwimmkörper stehen allgemeine lineare und nichtlineare Finite-Elemente-Programme (FE) zur Verfügung. Die Verteilung der äußeren Lasten über die Struktur kann mit Hilfe problemorientierter Preprozessoren unter der Berücksichtigung der Starr körper bewegung, der Umweltlasten, der Reaktionskräfte aus der Verankerung sowie der - meistens nichtlinearen - Lasten auf die Komponenten der Stabilisierungssysteme ermittelt werden. Zu den letzteren gehören z.B. die instationären Luftdrücke im Inneren der Seitenkammern und in den Verbindungsleitungen oder die hohe Biegebeanspruchung der Stabilisierungsplatten und deren Stützen durch zähigeitsbedingte Widerstandskräfte. Außerdem dürfen die durch Wirbelablösung induzierten hochfrequenten Vibrationen schlanker und dünner Strukturkomponenten nicht außer acht gelassen werden.
Actively stabilized wavelength-insensitive carrier elimination from an electro-optically modulated laser beam
Creators: name: Cooper, Nathan
name: Bateman, James
name: Dunning, Alexander
name: Freegarde, Tim
Publisher: name: arXiv
Year: 2012
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We demonstrate a simple and robust technique for removal of the carrier wave from a phase-modulated laser beam, using a non-interferometric method that is insensitive to the modulation frequency and instead exploits the polarization-dependence of electro-optic modulation. An actively stabilized system using feedback via a liquid crystal cell yields long-term carrier suppression in excess of 28 dB at the expense of a 6.5 dB reduction in sideband power.
description: 9 pages, 5 figures
A solar tornado observed by AIA/SDO: Rotational flow and evolution of magnetic helicity in a prominence and cavity
Creators: name: Li, Xing
name: Morgan, Huw
name: Leonard, Drew
name: Jeska, Lauren
Publisher: name: arXiv
Year: 2012
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: During 2011/09/24, as observed by the Atmospheric Imaging Assembly (AIA) instrument of the Solar Dynamic Observatory (SDO) and ground-based \Ha\ telescopes, a prominence and associated cavity appeared above the southwest limb. On 2011/09/25 8:00UT material flows upwards from the prominence core along a narrow loop-like structure, accompanied by a rise ($\geq$50,000km) of the prominence core and the loop. As the loop fades by 10:00, small blobs and streaks of varying brightness rotate around the top part of the prominence and cavity, mimicking a cyclone. The most intense and coherent rotation lasts for over three hours, with emission in both hot ($\sim$1MK) and cold (hydrogen and helium) lines. We suggest that the cyclonic appearance and overall evolution of the structure can be interpreted in terms of the expansion of helical structures into the cavity, and the movement of plasma along helical structures which appears as a rotation when viewed along the helix axis. The coordinated movement of material between prominence and cavity suggest that they are structurally linked. Complexity is great due to the combined effect of these actions and the line-of-sight integration through the structure which contains tangled fields.
description: 4 pages, 5 figures, accepted by ApJ Letters
Diffusion, adoption, and implementation of corporate responsibility practices in the forest sector : a proposed framework
Creators: name: Vidal, Natalia Giugni
Publisher: name: University of British Columbia
Year: 2009

description: The adoption of Corporate Responsibility practices is of strategic importance for the new social contract that the forest sector is seeking to establish. This sector has been increasingly under pressure to adopt responsible practices and show commitment to sustainability. However, Corporate Responsibility is not an easy concept for companies to implement. Identifying how this concept diffuses to companies, as well as the way forest companies understand and operationalize Corporate Responsibility practices, is an important first step to improve responsible practices in this sector. This dissertation addressed these issues by proposing a framework explaining diffusion, adoption, and implementation of Corporate Responsibility practices in the forest sector. Content analyses of sustainability reports of the largest global forest companies evaluated this sector’s understanding of concept. Grounded theory methodology was then used to develop a framework based on interviews with forest companies, non-governmental organizations, industry associations, and academics in Brazil, Canada, and the United States. Results show that different factors influence the diffusion, adoption, and implementation of Corporate Responsibility practices in forest companies. While external factors influence the diffusion of Corporate Responsibility practices to companies, internal factors influence the adoption and implementation of these practices within companies. Context influences different aspects of these processes by shaping relevant Corporate Responsibility issues and stakeholder demands in varying places of operation. The diffusion, adoption, and implementation of Corporate Responsibility practices are cyclical and interconnected processes that require continuous improvement efforts. These results advance knowledge on diffusion, adoption, and implementation of Corporate Responsibility practices, especially within the forest sector context. The identification of patterns in these processes should facilitate the management of companies’ response processes for responsible and sustainable practices. For organizations interested in advancing the practice of Corporate Responsibility, understanding the diffusion process can help them to identify more effective means of communicating with potential adopters, as well as positively influencing the uptake of more responsible practices.
The CPT theorem
Creators: name: Greaves, Hilary
name: Thomas, Teruji
Publisher: name: arXiv
Year: 2012
Subjects: subject: Mathematical Physics (math-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We provide a rigorous proof of the CPT theorem within the framework of 'Lagrangian' quantum field theory. This is in contrast to the usual rigorous proofs in purely axiomatic frameworks, and non-rigorous proof-sketches within the Lagrangian framework.
description: 28 pages excluding appendices and references; 36 pages in total
Bounds for the minimum eigenvalue of a symmetric Toeplitz matrix
Creators: name: Voß, Heinrich
Publisher: name: TUHH Universitätsbibliothek
Year: 1998
Subjects: subject: Toeplitz matrix
subject: eigenvalue problem
subject: symmetry
classificationCode: 510
subject: Mathematik
subject: Toeplitz-Matrix
subject: Eigenwertproblem
classificationCode: 65F15
subject: Eigenvalues, eigenvectors

description: In a recent paper Melman [12] derived upper bounds for the smallest eigenvalue of a real symmetric Toeplitz matrix in terms of the smallest roots of rational and polynomial approximations of the secular equation $f(lambda)=0$, the best of which being constructed by the $(1,2)$-Pad{accent19 e} approximation of $f$. In this paper we prove that this bound is the smallest eigenvalue of the projection of the given eigenvalue problem onto a Krylov space of $T_n^{-1}$ of dimension 3. This interpretation of the bound suggests enhanced bounds of increasing accuracy. They can be substantially improved further by exploiting symmetry properties of the principal eigenvector of $T_n$.
A 3D Photoionization Model of the Extreme Planetary Nebula NGC 6302
Creators: name: Wright, Nicholas J.
name: Barlow, Michael J.
name: Ercolano, Barbara
name: Rauch, Thomas
Publisher: name: arXiv
Year: 2011
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We present a 3D photoionization model of the PN NGC 6302, one of the most complex objects of its kind. Our Mocassin model is composed of an extremely dense circumstellar disk and a large pair of diffuse bipolar lobes, a combination necessary to reproduce the observed spectrum. The masses of these components gives a total nebular mass of 4.7Mo. Discrepancies between our model fit and the observations are attributed to complex density inhomogeneities in the nebula. The potential to resolve such discrepancies with more complex models is confirmed by a range of models introducing small-scale structures. Compared to solar abundances He is enhanced by 50%, C is slightly subsolar, O is solar, and N is enhanced by a factor of 6. These imply a significant 3rd dredge-up coupled with hot-bottom burning CN-cycle conversion of dredged-up C to N. The central star is partly obscured by the edge-on circumstellar disk and its properties are not well constrained. Emission from a number of high-ionization `coronal' lines provides constraints on the form of the high-energy ionizing flux. Using a solar abundance stellar atmosphere we are unable to fit all of the observed line fluxes, but a substantially better fit was obtained using a 220,000K H-deficient stellar atmosphere with L*=14,300 Lo. The H-deficient nature of the central star suggests it has undergone a late thermal pulse, and fits to evolutionary tracks imply a central star mass of 0.73-0.82Mo. Timescales for these tracks suggest the object left the top of the AGB ~2100 years ago, in agreement with studies of the recent mass-loss event that formed the bipolar lobes. Based on the modelled nebular and central star masses we estimate the initial mass of the central star to be 5.5Mo, in agreement with that derived from evolutionary tracks. (Abstract truncated)
description: 23 pages, 8 figures, 10 tables. Accepted for publication in MNRAS
Determinants of primary caregivers' health seeking behaviour in a Tanzanian peri-urban town
Creators: name: Aragon, Melissa
Publisher: name: University of British Columbia
Year: 2009

description: This paper examines the principal determinants dictating the health-seeking behaviour of primary caregivers in a peri-urban town in Tanzania. I argue that the typical epidemiological model, utilized by most health intervention programs, and largely based on a person’s identifying characteristics such as migration status, religion, education and tribal affiliation, are insufficient tools for predicting a primary caregiver’s health seeking behaviour when children are afflicted with homa (fever), most often attributed to malaria. Rather, one’s sphere of interaction, defined by one’s shared values attributed with status as a primary caregiver, participation in the informal economy and interspersed residential patterns typical of the peri-urban environment are the principal factors determining caregivers’ strategies. Based on two months of fieldwork consisting of participant observation and semistructured interviews in a town located on the outskirts of Dar es Salaam, Tanzania, this study uses Bourdieu’ s concepts of strategy and habitus (1977) to account for the health seeking behaviour of primary caregivers. Ultimately, based on this research, I conclude that first, social interaction surpasses static categories in defining primary caregivers’ health seeking strategies; second, in order for health intervention programs to be successful, they must be based upon a community’s specific dynamics; third, social networks forged through social interactions offer a formidable means of established communication via which health messages can be broadcast, and health intervention programs can be distributed.
Hysteresis and Return Point Memory in Artificial Spin Ice Systems
Creators: name: Libal, A.
name: Reichhardt, C.
name: Reichhardt, C. J. Olson
Publisher: name: arXiv
Year: 2011
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: We investigate hysteresis loops and return point memory for artificial square and kagome spin ice systems by cycling an applied bias force and comparing microscopic effective spin configurations throughout the hysteresis cycle. Return point memory loss is caused by motion of individual defects in kagome ice or of grain boundaries in square ice. In successive cycles, return point memory is recovered rapidly in kagome ice. Memory is recovered more gradually in square ice due to the extended nature of the grain boundaries. Increasing the amount of quenched disorder increases the defect density but also enhances the return point memory since the defects become trapped more easily.
description: 5 pages, 4 postscript figures
Diagenetic model for middle Devonian Keg River formation Rainbow Area, Northwestern Alberta
Creators: name: Dunsmore, Hugh E.
Publisher: name: University of Calgary
Year: 1972
Subjects: subject: QE 665 D84 1971
subject: Geology, Stratigraphic - Devonian
subject: Geology - Alberta - Rainbow area

description: Bibliography: p. 143-147.
Depositional patterns of the Upper Devonian waterways formation, Swan Hills area, Alberta
Creators: name: Sheasby, Norman Michael
Publisher: name: University of Calgary
Year: 1971
Subjects: subject: QE 581 S53 1970
subject: Sedimentation and deposition
subject: Sediments (Geology)
subject: Geology - Alberta - Swan Hills area
subject: Geology, Stratigraphic - Devonian

description: Bibliography: p. 57-59.
Upper Silurian (late Ludlovian) to upper Devonian (Frasnian ?) stratigraphy and depositional history of the Vendom fiord region, Ellesmere Island, Canadian Arctic
Creators: name: Roblesky, Robert F.
Publisher: name: University of Calgary
Year: 1979
Subjects: subject: QE 661 R62 1979 Fiche
subject: Geology, Stratigraphic - Silurian
subject: Geology, Stratigraphic - Devonian
subject: Geology - Northwest Territories - Ellesmere Island
subject: Geology - Northwest Territories - Vendom Fiord

description: Bibliography: p. 174-188.
Dynamic behavior analysis for a six axis industrial machining robot
Creators: name: Bisu, Claudiu-Florinel
name: Cherif, Medhi
name: Gérard, Alain
name: K'Nevez, Jean-Yves
Publisher: name: arXiv
Year: 2012
Subjects: subject: Robotics (cs.RO)
subject: FOS: Computer and information sciences

description: The six axis robots are widely used in automotive industry for their good repeatability (as defined in the ISO92983) (painting, welding, mastic deposition, handling etc.). In the aerospace industry, robot starts to be used for complex applications such as drilling, riveting, fiber placement, NDT, etc. Given the positioning performance of serial robots, precision applications require usually external measurement device with complexes calibration procedure in order to reach the precision needed. New applications in the machining field of composite material (aerospace, naval, or wind turbine for example) intend to use off line programming of serial robot without the use of calibration or external measurement device. For those applications, the position, orientation and path trajectory precision of the tool center point of the robot are needed to generate the machining operation. This article presents the different conditions that currently limit the development of robots in robotic machining applications. We analyze the dynamical behavior of a robot KUKA KR240-2 (located at the University of Bordeaux 1) equipped with a HSM Spindle (42000 rpm, 18kW). This analysis is done in three stages. The first step is determining the self-excited frequencies of the robot structure for three different configurations of work. The second phase aims to analyze the dynamical vibration of the structure as the spindle is activated without cutting. The third stage consists of vibration analysis during a milling operation.
Evidence for enhanced chromospheric Ca II H & K emission in stars with close-in extrasolar planets
Creators: name: Krejcova, Tereza
name: Budaj, Jan
Publisher: name: arXiv
Year: 2012
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: The planet-star interaction is manifested in many ways. It was found out that a close-in exoplanet causes small but measurable variability in the cores of a few lines in the spectra of several stars which corresponds to the orbital period of the exoplanet. Stars with and without exoplanets may have different properties. The main goal of our study is to search for influence which exoplanets might have on atmospheres of their host stars. Unlike the previous studies, we do not study changes in the spectrum of a host star or differences between stars with and without exoplanets. We aim to study a large number of stars with exoplanets, current level of their chromospheric activity and look for a possible correlation with the exoplanetary properties. To analyse the chromospheric activity of stars we exploit our own (2.2m ESO/MPG telescope) and publicly available archival spectra (Keck Observatory Archive), measure the equivalent widths of the cores of Ca II H and K lines and use them as a tracer of their activity. Subsequently, we search for their dependence on the orbital parameters and mass of the exoplanet. We found a statistically significant evidence that the equivalent width of the Ca II K line emission and log R'_{HK} activity parameter of the host star varies with the semi-major axis and mass of the exoplanet. Stars with T_eff <= 5500 K having exoplanets with semi-major axis a <= 0.15 AU (P_orb <= 20 days) have a broad range of Ca II K emissions and much stronger emission in general than stars at similar temperatures but with higher values of semi-major axes. Ca II K emission of cold stars (T_eff <= 5500 K) with close-in exoplanets (a <= 0.15 AU) is also more pronounced for more massive exoplanets. The overall level of the chromospheric activity of stars may be affected by their close-in exoplanets. Stars with massive close-in exoplanets may be more active.
description: 9 pages, 8 figures, 1 table
On observability estimates for semigroups in Banach spaces
Creators: name: Gallaun, Dennis
Publisher: name: TUHH Universitätsbibliothek
Year: 2022
Subjects: classificationCode: 510
subject: Mathematik

description: Diese Arbeit befasst sich mit einer allgemeinen Methode zum Nachweis von Beobachtbarkeit für Kontrollsysteme in unendlich-dimensionalen Räumen. Ergänzend zu früheren Resultaten im Hilbertraumkontext bestimmen wir explizite Beobachtbarkeitsungleichungen für Operatorhalbgruppen in allgemeinen Banachräumen, indem wir eine Unschärferelation und eine Dissipationsungleichung kombinieren. Wir untersuchen Verbindungen zur Steuer- und Stabilisierbarkeit und wenden unsere Ergebnisse auf lineare parabolische Gleichungen in einem unbeschränkten Gebiet an.
description: This thesis deals with a general method for proving observability for control systems in infinite-dimensional spaces. Complementing previous results obtained in the context of Hilbert spaces, we derive explicit observability estimates of operator semigroups in general Banach spaces by combining an uncertainty principle and a dissipation estimate. We study connections to controllability and stabilization properties and apply our results to linear parabolic equations in an unbounded domain.
Nuclear Spin Relaxation of Very Dilute 3He impurities in Solid 4He
Creators: name: Kim, S. S.
name: Huan, C.
name: Yin, L.
name: Xia, J. S.
name: Candela, D.
name: Sullivan, N. S.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We report measurements of the nuclear spin-lattice and spin-spin relaxation times of very dilute 3He in solid 4He in the temperature range 0.01 \leq T \leq 0.5 K for densities where anomalies have been observed in torsional oscillator and shear modulus measurements. We compare the results with the values of the relaxation times reported by other observers for higher concentrations and the theory of Landesman that takes into account the elastic properties of the 4He lattice. A sharp increase in the magnitude of the nuclear spin-lattice relaxation times compared to the the classical Landesman theory is observed close to the temperatures where the torsional and shear modulus anomalies are observed. The NMR results suggest that the tunneling of 3He impurities in the atomic-scale elastic distortion is affected by the same processes that give rise to the macroscopic elastic dissipation anomalies.
description: 4 pages, 4 figures
Recent Observations of Plasma and Alfvenic Wave Energy Injection at the Base of the Fast Solar Wind
Creators: name: McIntosh, Scott W.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We take stock of recent observations that identify the episodic plasma heating and injection of Alfvenic energy at the base of fast solar wind (in coronal holes). The plasma heating is associated with the occurrence of chromospheric spicules that leave the lower solar atmosphere at speeds of order 100km/s, the hotter coronal counterpart of the spicule emits radiation characteristic of root heating that rapidly reaches temperatures of the order of 1MK. Furthermore, the same spicules and their coronal counterparts ("Propagating Coronal Disturbances"; PCD) exhibit large amplitude, high speed, Alfvenic (transverse) motion of sufficient energy content to accelerate the material to high speeds. We propose that these (disjointed) heating and accelerating components form a one-two punch to supply, and then accelerate, the fast solar wind. We consider some compositional constraints on this concept, extend the premise to the slow solar wind, and identify future avenues of exploration.
description: 12 pages, 9 figures - accepted to appear in Space Science Reviews
Group-Theoretical Classification of BPS States in D=4 Conformal Supersymmetry: the Case of (1/N)-BPS
Creators: name: Dobrev, V. K.
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Representation Theory (math.RT)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: In an earlier paper we gave the complete group-theoretical classification of BPS states of the N-extended D=4 conformal superalgebras su(2,2/N), but not all interesting cases were given in detail. In the present paper we spell out the interesting case of (1/N)-BPS and possibly protected states.
description: LATEX2e, 8 pages, Plenary talk at the International Workshop 'Supersymmetries and Quantum Symmetries', Dubna, 18-23.7.2011, to appear in the Proceedings, editors Evgeny Ivanov et al
Interstellar polarization and grain alignment: the role of iron and silicon
Creators: name: Voshchinnikov, N. V.
name: Henning, Th.
name: Prokopjeva, M. S.
name: Das, H. K.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We compiled the polarimetric data for a sample of lines of sight with known abundances of Mg, Si, and Fe. We correlated the degree of interstellar polarization $P$ and polarization efficiency (the ratio of $P$ to the colour excess $E(B-V)$ or extinction $A_V$) with dust phase abundances. We detect an anticorrelation between $P$ and the dust phase abundance of iron in non silicate - containing grains $< [\rm Fe(rest)/H > ]_\rm d$, a correlation between $P$ and the abundance of Si, and no correlation between $P/E(B-V)$ or $P/A_V$ and dust phase abundances. These findings can be explained if mainly the silicate grains aligned by the radiative mechanism are responsible for the observed interstellar linear polarization.
description: Accepted for publication in Astronomy and Astrophysics
Embodying history : the memoirs of Canadian female political trailblazers
Creators: name: Reaume, Amanda
Publisher: name: University of British Columbia
Year: 2009

description: The purpose of this study was to show how Canadian women’s political memoirs form a subgenre of their own, distinct from Canadian men’s political memoirs and that these memoirs operate according to certain strict narrative conventions because of the limited ways in which women politicians can express themselves and act within male-dominated institutions like parliaments. The distinctive aspects of women’s political memoirs are illustrated by the narrative anecdotes, descriptions, and commentary that are present within their ‘trailblazing narratives’ and the mechanisms through which the subgenre of political memoir functions (i.e. through anecdotes, narrative description, and other narrative strategies). Among the similar anecdotes featured in these narratives are descriptions of the lack of washrooms for female politicians, identification with other women politicians through the creation of a genealogical narrative of women in politics, and struggles to be heard and respected as female politicians. This study focuses on Canadian women’s political memoirs from the 1980s to the present and includes analysis of Being Brown: A Very Public Life (1989) by Rosemary Brown, Time and Chance (1996) by Kim Campbell, Trade Secrets (2000) by Pat Camey, Worth Fighting For (2004) and Nobody’s Baby ( 1986) by Sheila Copps, Never Retreat, Never Explain, Never Apologize (2004) by Deborah Gray, A Woman’s Place (1992) by Audrey McLaughlin and No Laughing Matter (2008) by Margaret Mitchell.
Zur Theorie des Propellers mit aus dem Wasser herausschlagenden Fluegeln
Creators: name: Isay, Wolfgang Hermann
Publisher: name: TUHH Universitätsbibliothek
Year: 1966
Subjects: classificationCode: 55.40
subject: Schiffstechnik, Schiffbau

description: Zur Theorie des Propellers mit aus dem Wasser herausschlagenden Fluegeln.
Logarithmic temperature dependence of Hall transport in granular metals
Creators: name: Zhang, Yu-Jie
name: Li, Zhi-Qing
name: Lin, Juhn-Jong
Publisher: name: arXiv
Year: 2011
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: We have measured the Hall coefficient $R_H$ and the electrical conductivity $σ$ of a series of ultrathin indium tin oxide films between 2 and 300 K. A robust $R_H$\,$\propto$\,ln$T$ law is observed in a considerably wide temperature range of 2 and $\sim$120 K. This ln$T$ dependence is explained as originated from the electron-electron interaction effect in the presence of granularity, as newly theoretically predicted. Furthermore, we observed a $σ$\,$\propto$\,ln$T$ law from 3 K up to several tens K, which also arose from the Coulomb interaction effect in inhomogeneous systems. These results provide strong experimental supports for the current theoretical concepts for charge transport in granular metals with intergrain tunneling conductivity $g_T$$\gg$1.
description: 4 pages, 5 figures, Phys. Rev. B (accepted)
Demographic characteristics of urban Indians
Creators: name: Maunula, Francis A.
Publisher: name: University of Calgary
Year: 1973
Subjects: subject: E 78 A33 M38 1973
subject: Indians of North America - Alberta
subject: Indians of North America - Urban residence
subject: Indians of North America - Social conditions
subject: Calgary Indian Affairs Social Services

description: Bibliography: p. 75-80.
description: This descriptive study examines the development of an intake questionnaire for urban Indian social services and the development of a functional information and retrieval system. The major emphasis of the study reports the demographic characteristics of urban Indians who have applied for assistance at Calgary Indian Affairs Social Services. The questionnaire was used from October 4, 1972 through February 9, 1973 at Calgary Indian Affairs Social Services. It was administered to all clients on the occasion of their initial visit during this time period. Seven hundred and twenty-nine questionnaires were filled out and a stratified time random sample of 185 of these were used in the analysis reported here. The data from the questionnaires was coded on Hollerith cards and was tabulated by the CDC 6400 Computer, University of Calgary. The specific program used was The Statistical Package for Social Scientists. Subprograms, Codebook, Crosstabs and Breakdown were used to analyze the data. The 25 questions for which specific answers were sought were answered by data contained in forty-seven tables. The answers to the questions were arranged into four areas which came under the general headings: (1) Answers and questions regarding Demographic Characteristics of a sample of urban Indians; (2) Answers to questions regarding Services urban Indians sought from agencies other than Indian Affairs; (3) Answers to questions regarding services given to Indians by Indian Affairs Social Services in Calgary; (4) Answer to the question regarding information for planning of Social Services. The results showed that urban Indians form a heterogeneous group. There are single people, both with and without dependents. There are two parent families and there are separated people with and without de­pendents. Fifty-one percent of the applicants claim no dependents. Thirty-two percent of the applicants indicate they intend to stay less than six months in the city. The data indicates that a diversified approach to social services is needed. The recommendations include three areas: (1) Social Service Policy and Program for urban Indians should take into consideration education, work ethic, family and cultural background of· Indians; (2) Extension of social services should be geared to heterogenous character­istics of the Indian population; (3) Continuation of research on the descriptive level as well as more in-depth evaluative research geared to initiating specific programs.
Initial conditions for star formation in clusters: physical and kinematical structure of the starless core Oph A-N6
Creators: name: Bourke, Tyler L.
name: Myers, Philip C.
name: Caselli, Paola
name: Di Francesco, James
name: Belloche, Arnaud
name: Plume, René
name: Wilner, David J.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present high spatial (<300 AU) and spectral (0.07 km/s) resolution Submillimeter Array observations of the dense starless cluster core Oph A-N6, in the 1 mm dust continuum and the 3-2 line of N2H+ and N2D+. The dust continuum observations reveal a compact source not seen in single-dish observations, of size ~1000 AU and mass 0.005-0.01 M\odot. The combined line and single-dish observations reveal a core of size 3000 \times 1400 AU elongated in a NW-SE direction, with almost no variation in either line width or line center velocity across the map, and very small non-thermal motions. The deuterium fraction has a peak value of ~0.15 and is >0.05 over much of the core. The N2H+ column density profile across the major axis of Oph A-N6 is well represented by an isothermal cylinder, with temperature 20 K, peak density 7.1 \times 10^6 cm^{-3}, and N2H+ abundance 2.7 \times 10^{-10}. The mass of Oph A-N6 is estimated to be 0.29 M\odot, compared to a value of 0.18 M\odot from the isothermal cylinder analysis, and 0.63 M\odot for the critical mass for fragmentation of an isothermal cylinder. Compared to isolated low-mass cores, Oph A-N6 shows similar narrow line widths and small velocity variation, with a deuterium fraction similar to "evolved" dense cores. It is significantly smaller than isolated cores, with larger peak column and volume density. The available evidence suggests Oph A-N6 has formed through the fragmentation of the Oph A filament and is the precursor to a low-mass star. The dust continuum emission suggests it may already have begun to form a star.
description: 42 pages, 12 figures, accepted by ApJ
Link between chips and cutting moments evolution
Creators: name: Cahuc, Olivier
name: Bisu, Claudiu-Florinel
name: Gérard, Alain
Publisher: name: arXiv
Year: 2012
Subjects: subject: General Physics (physics.gen-ph)
subject: FOS: Physical sciences

description: The better understanding of the material cutting process has been shown with the benefit of the forces and moments measurement since some years ago. In paper, simultaneous six mechanical components and chip orientation measurements were realized during turning tests. During these tests, the influence of the depth of cut or feed rate has been observed and a link between the chip orientation and the moment vector orientation or the central axis characteristics has been shown.
Doubly charged Higgs from $e$-$γ$ scattering in the 3-3-1 Model
Creators: name: Montalvo, J. E. Cieza
name: Ulloa, G. H. Ramírez
name: Tonasse, M. D.
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We studied the production and signatures of doubly charged Higgs bosons in the process $γe^- \rightarrow H^{--}E^+$, where $E^+$ is a heavy lepton, at the $e^-e^+$ International Linear Collider (ILC) and CERN Linear Collider (CLIC). The intermediate photons are given by the Weizs$\ddot{a}$cker-Williams and laser backscattering distributions. We found that significant signatures are obtained by bremsstrahlung and backward Comptom scattering of laser. A clear signal can be obtained for doubly charged Higgs bosons, doubly charged gauge bosons and heavy leptons.
Finding Deceptive Opinion Spam by Any Stretch of the Imagination
Creators: name: Ott, Myle
name: Choi, Yejin
name: Cardie, Claire
name: Hancock, Jeffrey T.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Computation and Language (cs.CL)
subject: Computers and Society (cs.CY)
subject: FOS: Computer and information sciences
subject: I.2.7; J.4; K.4.2

description: Consumers increasingly rate, review and research products online. Consequently, websites containing consumer reviews are becoming targets of opinion spam. While recent work has focused primarily on manually identifiable instances of opinion spam, in this work we study deceptive opinion spam---fictitious opinions that have been deliberately written to sound authentic. Integrating work from psychology and computational linguistics, we develop and compare three approaches to detecting deceptive opinion spam, and ultimately develop a classifier that is nearly 90% accurate on our gold-standard opinion spam dataset. Based on feature analysis of our learned models, we additionally make several theoretical contributions, including revealing a relationship between deceptive opinions and imaginative writing.
description: 11 pages, 5 tables, data available at: http://www.cs.cornell.edu/~myleott
Prehistoric use of obsidian in the Northwestern Plains
Creators: name: Davis, Leslie Beryl
Publisher: name: University of Calgary
Year: 1973
Subjects: subject: E 78 N8 D38 1972
subject: Indians of North America - Northwestern states
subject: Indians of North America - Antiquities
subject: Stone implements - Northwestern States
subject: Obsidian - United States - Northwestern States

description: Bibliography: p. 247-274 (Volume 1).
Inclusive Distribution of Fully Reconstructed Jets in Heavy Ion Collisions at RHIC: Status Report
Creators: name: de Barros, Gabriel
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: We present an update to the analysis of fully reconstructed jets in heavy ion collisions by the STAR Collaboration at RHIC. We analyse the response of the anti-$k_{T}$ algorithm in the presence of background, and present a new observable for the measurement of inclusive jet production that is expected to be more robust against background model assumptions than previous jet analyses at RHIC and LHC.
description: Proceedings of PANIC11, Boston, USA, July 24th-29th 2011, 2011; 4 pages, 6 figures
Mechanical properties of a recovered Al-Mg-Sc alloy
Creators: name: Roumina, Reza
Publisher: name: University of British Columbia
Year: 2009

description: In this study the effect of recovery on the yield strength and work hardening of a model Al-Mg-Sc alloy in the presence of A1₃Sc precipitates was investigated. Recovered microstructures containing A1₃Sc precipitates were obtained through a series of thermo-mechanical treatments including pre-aging, cold rolling and annealing. Recovered microstructures were characterized in terms of precipitate size distribution, subgrain sizes and dislocation structures. Yield strength and work hardening of processed microstructures were examined by tensile testing at 77K. The results show that the effect of precipitates arises directly from precipitation strengthening as well as indirectly from their effectiveness at controlling the recovered microstructure. Physical based models were developed to describe the tensile response of recovered microstructures consistent with previous models on single phase recovered Al-Mg alloys. For the first time, the impact of precipitates on recovery kinetics was captured by coupling recovery models of single phase Al-Mg alloys and creep models. In this new modelling approach a transition stage from dislocation annihilation to a climb controlled mechanism was defined. In addition, the effects of both recovery and precipitates on work hardening have been incorporated in the previous models. Finally, model limitations as well as their potential applications to improve mechanical properties including yield strength, ultimate tensile strength and uniform elongation of Al-Mg-Sc alloys by controlling thermo-mechanical processing and chemical composition were revisited.
Experimental Characterization of Robot Arm Rigidity in Order to Be Used in Machining Operation
Creators: name: K'Nevez, Jean-Yves
name: Cherif, Mehdi
name: Zapciu, Miron
name: Gérard, Alain
Publisher: name: arXiv
Year: 2012
Subjects: subject: Robotics (cs.RO)
subject: FOS: Computer and information sciences

description: Attempts to install a rotating tool at the end of a robot arm poly-articulated date back twenty years, but these robots were not designed for that. Indeed, two essential features are necessary for machining: high rigidity and precision in a given workspace. The experimental results presented are the dynamic identification of a poly-articulated robot equipped with an integrated spindle. This study aims to highlight the influence of the geometric configuration of the robot arm on the overall stiffness of the system. The spindle is taken into account as an additional weight on board but also as a dynamical excitation for the robot KUKA KR_240_2. Study of the robotic machining vibrations shows the suitable directions of movement in milling process
Pre-trial detention: a survey of empirical research in four countries: research issues in corrections - a research proposal for the remand centre
Creators: name: Kemp, Gerald Geary
Publisher: name: University of Calgary
Year: 1976
Subjects: subject: Detention of persons
subject: Arrest
subject: Calgary Remand Centre
subject: Correctional law

description: Bibliography: p. 51-54.
description: The document to follow is the final product that emerged from a two month work experience with the Calgary Remand Centre, the City's Detention facility for prisoners awaiting a court hearing. It consists of three main and conceptually distinct sections although there is a logial connection and interrelationship between sections. The content of the document was not in any way pre-determined, that is to say, there was no specific request or directive to deal with the substantive areas that are present. Two graduate social work students, myself and a colleague, both of whom were primarily interested in research and evaluation, were given an open-ended two month assignment at the Centre. The specific context and substance of the paper evolved slowly over the course of the two month period and was shaped by several forces. First of all, we were free to pursue problems and issues which were of personal interest to us, and the report reflects this to some extent. Secondly, we held a series of periodic meetings with officials at the Centre in order to sensitize ourselves to the kind of information needs which would be of most use to them and to the organization in their charge. The report, therefore, is intended to be of some practical value and consistent with the expressed views of centre officials as to what would have particular value for them. Finally, as is always the case, the report was regulated by the pragmatics of what it was possible to achieve, given such limitations as the time frame, the setting, and in this particular case, certain inauspicious legal proceedings dealing with matters concerning the practice of research in provincial correctional institutions. As noted, the report contains three parts. The first is a survey of empirical research from four countries (Canada, The United States, The United Kingdom, and Australia) dealing with selected issues in pretrial detention. The second part is a short discussion of some critical research issues in corrections generally, with some particular attention given to their ramifications for research in a facility such as the Remand Centre. The last part of the document is a research proposal written specifically for the Remand Centre. It calls for undertaking a research audit which would, in part, provide a data package descriptive of the Centre's first year of operation.