cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Decision-making in Practice: Surgical Actionability and Consent in Pelvic Floor Medicine
Creators: name: Nikoo, Shoghi W
Publisher: name: Graduate Studies
Year: 2014
Subjects: subject: Education--Sociology of
subject: Sociology
subject: FOS: Sociology
subject: Health Sciences
subject: Actor-network theory
subject: Medical sociology
subject: Autonomy
subject: Informed consent
subject: Urogynaecology

description: In this thesis I explore how patients’ problems are made surgically actionable so that decisions regarding and consent to surgery may be produced. I employ ethnographic observations of the material and semiotic practices in which surgeons and patients are engaged. Surgical actionability arises in a cascade of practices that produce diseases such that they meet conditions of actionability. Disagreement between realities of a problem, or uncertainty regarding surgical outcomes, may produce disruptive turbulence in these cascades. Surgeons manage turbulence by shifting sites of decision onto ‘patient choice’ – if a patient decides she is bothered enough to justify the risks, surgery may go forward. However, patients’ decisions rarely take on this ‘rational’ character; instead, they appear to be non-formal and centre on issues other than risks and benefits. I question the value of ‘respect for autonomy’ and propose that policy based in care, with a focus on the particularities of disease and decision production, may serve patients better.
On the Invariants of Towers of Function Fields over Finite Fields
Creators: name: Hess, Florian
name: Stichtenoth, Henning
name: Tutdere, Seher
Publisher: name: arXiv
Year: 2011
Subjects: subject: Number Theory (math.NT)
subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics

description: We consider a tower of function fields F=(F_n)_{n\geq 0} over a finite field F_q and a finite extension E/F_0 such that the sequence \mathcal{E):=(EF_n)_{n\goq 0} is a tower over the field F_q. Then we deal with the following: What can we say about the invariants of \mathcal{E}; i.e., the asymptotic number of places of degree r for any r\geq 1 in \mathcal{E}, if those of F are known? We give a method based on explicit extensions for constructing towers of function fields over F_q with finitely many prescribed invariants being positive, and towers of function fields over F_q, for q a square, with at least one positive invariant and certain prescribed invariants being zero. We show the existence of recursive towers attaining the Drinfeld-Vladut bound of order r, for any r\geq 1 with q^r a square. Moreover, we give some examples of recursive towers with all but one invariants equal to zero.
description: 23 pages
About spin electromagnetic wave-particle with ring singularity
Creators: name: Chernitskii, Alexander A.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Mathematical Physics (math-ph)
subject: High Energy Physics - Theory (hep-th)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: An axisymmetric space-localized solution of nonlinear electrodynamics is considered as massive charged particle with spin and magnetic moment. The appropriate solution for nonlinear electrodynamics with ring singularity is investigated. In view of this problem the system of toroidal waves in linear electrodynamics is considered. The problem with boundary conditions on the singular ring of the toroidal coordinate system is investigated. The boundary conditions are taken taking into account the conformity between the toroidal and cylindrical waves on the ring. In this case the singular ring looks like convolute axis of cylindrical system. The appropriate system of wave modes are obtained in an integral form with the help of source function.
description: The article for proceedings of the XIV Workshop on high energy spin physics (DSPIN-11), Dubna, Russia, September 20-24, 2011. 4 pages
Multifractal finite-size-scaling and universality at the Anderson transition
Creators: name: Rodriguez, Alberto
name: Vasquez, Louella J.
name: Slevin, Keith
name: Roemer, Rudolf A.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: We describe a new multifractal finite size scaling (MFSS) procedure and its application to the Anderson localization-delocalization transition. MFSS permits the simultaneous estimation of the critical parameters and the multifractal exponents. Simulations of system sizes up to L^3=120^3 and involving nearly 10^6 independent wavefunctions have yielded unprecedented precision for the critical disorder W_c=16.530 (16.524,16.536) and the critical exponent nu=1.590 (1.579,1.602). We find that the multifractal exponents Delta_q exhibit a previously predicted symmetry relation and we confirm the non-parabolic nature of their spectrum. We explain in detail the MFSS procedure first introduced in our Letter [Phys. Rev. Lett. 105, 046403 (2010)] and, in addition, we show how to take account of correlations in the simulation data. The MFSS procedure is applicable to any continuous phase transition exhibiting multifractal fluctuations in the vicinity of the critical point.
description: 18 pages, 13 figures
The Impact of Circumplantary Jets on Transit Spectra and Timing Offsets for Hot-Jupiters
Creators: name: Dobbs-Dixon, Ian
name: Agol, Eric
name: Burrows, Adam
Publisher: name: arXiv
Year: 2011
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: We present theoretical wavelength-dependent transit light curves for the giant planet HD209458b based on a number of state of the art 3D radiative hydrodynamical models. By varying the kinematic viscosity in the model we calculate observable signatures associated with the emergence of a super-rotating circumplanetary jet that strengthens with decreased viscosity. We obtain excellent agreement between our mid-transit transit spectra and existing data from Hubble and Spitzer, finding the best fit for intermediate values of viscosity. We further exploit dynamically driven differences between eastern and western hemispheres to extract the spectral signal imparted by a circumplanetary jet. We predict that: (i) the transit depth should decrease as the jet becomes stronger; (ii) the measured transit times should show timing offsets of up to 6 seconds at wavelengths with higher opacity, which increases with jet strength; (iii) wavelength-dependent differences between ingress and egress spectra increase with jet strength; (iv) the color-dependent transit shape should vary more strongly with wavelength for stronger jets. These techniques and trends should be valid for other hot Jupiters as well. Observations of transit timing offsets may be accessible with current instrumentation, though the other predictions may require the capabilities JWST and other future missions. Hydrodynamical models utilized solve the 3D Navier-Stokes equations together with decoupled thermal and radiative energy equations and wavelength dependent stellar heating.
description: Submitted to The Astrophysical Journal
Proceedings First Workshop on CTP Components for Educational Software
Creators: name: Quaresma, Pedro
name: Back, Ralph-Johan
Publisher: name: arXiv
Year: 2012
Subjects: subject: Systems and Control (eess.SY)
subject: Logic in Computer Science (cs.LO)
subject: Mathematical Software (cs.MS)
subject: Symbolic Computation (cs.SC)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences

description: The THedu'11 workshop received thirteen submissions, twelve of which were accepted and presented during the workshop. For the post-conference proceedings nine submission where received and accepted. The submissions are within the scope of the following points, which have been announced in the call of papers: CTP-based software tools for education; CTP technology combined with novel interfaces, drag and drop, etc.; technologies to access ITP knowledge relevant for a certain step of problem solving; usability considerations on representing ITP knowledge; combination of deduction and computation; formal problem specifications; effectiveness of ATP in checking user input; formats for deductive content in proof documents, geometric constructions, etc; formal domain models for e-learning in mathematics and applications.
U.S. Farming in the Early 1980's: Production and Financial Structure
Creators: name: Harrington, David H.
name: Reimund, Donn A.
name: Baum, Kenneth H.
name: Peterson, R. Neal
name: Harrington, David H.
name: Reimund, Donn A.
name: Baum, Kenneth H.
name: Peterson, R. Neal
Publisher: name: Unknown
Year: 1983
Subjects: subject: Agricultural and Food Policy
subject: Agricultural Finance
subject: Financial Economics
subject: Research Methods/ Statistical Methods
subject: Farm structure
subject: farm income
subject: financial organization
subject: commodity programs
subject: inflation
subject: income taxes
subject: land values
subject: representative farms
subject: simulation analysis

description: Long-term trends to fewer and larger farms appear to have slowed sharply in the late seventies and early eighties. High leverage of farm assets, declining asset values, and low commodity prices caused severe cash flow problems for the farm sector In the early eighties, and many farmers incurred sizable losses. Computer simulation models of representative farms in six regions of the country suggest that fully owned farms with modest or no debt should fare reasonably well over the next few years. But part-owner farms and heavily indebted farmers will likely face financial difficulty and declining net worths. Commodity programs were found to contribute significantly to the survival ability of farms.
Determination of the Joint Confidence Region of Optimal Operating Conditions in Robust Design by Bootstrap Technique
Creators: name: Park, Chanseok
Publisher: name: arXiv
Year: 2012
Subjects: subject: Methodology (stat.ME)
subject: FOS: Computer and information sciences

description: Robust design has been widely recognized as a leading method in reducing variability and improving quality. Most of the engineering statistics literature mainly focuses on finding "point estimates" of the optimum operating conditions for robust design. Various procedures for calculating point estimates of the optimum operating conditions are considered. Although this point estimation procedure is important for continuous quality improvement, the immediate question is "how accurate are these optimum operating conditions?" The answer for this is to consider interval estimation for a single variable or joint confidence regions for multiple variables. In this paper, with the help of the bootstrap technique, we develop procedures for obtaining joint "confidence regions" for the optimum operating conditions. Two different procedures using Bonferroni and multivariate normal approximation are introduced. The proposed methods are illustrated and substantiated using a numerical example.
description: Two tables, Three figures
Tracking Thermal and Structural Properties of Melt-Freeze Crusts in the Seasonal Snowpack
Creators: name: Smith, Michael Andrew
Publisher: name: Graduate Studies
Year: 2014
Subjects: subject: Atmospheric Sciences
subject: FOS: Earth and related environmental sciences
subject: Geophysics
subject: Engineering--Civil
subject: Snow
subject: avalanche
subject: snowpack
subject: thermal conductivity
subject: specific surface area

description: Persistent weak layers present a particular challenge for avalanche forecasters due to their long lifetime and the difficulty of obtaining observations once they are deeply buried. Melt-freeze crusts are one type of persistent weak layer that is often associated with deep slab avalanches during late winter or spring. This study seeks to improve the understanding of the thermal and structural properties of melt-freeze crusts by tracking them from formation through to isothermal conditions in the spring. Specific Surface Area (SSA) was tracked weekly using near-infrared digital photography for nine natural crusts and four cold lab crusts during the winters of 2008-09 and 2009-10. Image analysis techniques were adapted from existing methods in order to track the mean SSA for specific structures within crusts, as well as vertical profiles of SSA across crust boundaries. Few temporal trends were identified even in the presence of strong diurnal slope normal temperature gradients, but the ratio of mean SSA between crusts and adjacent layers did reveal relative changes in the structure. The thermal conductivity was tracked for six natural and five cold lab crusts during the winter of 2009-10 using a heated needle probe. Thermal conductivity of two cold lab crusts increased during freezing and subsequently decreased in the presence of strong vertical temperature gradients, while that of natural crusts had no discernible trends under weak temperature gradients. Trends of increasing thermal conductivity in adjacent layers were well correlated with increasing density as in previous studies but with a positive offset that may be attributable to the warmer snow temperatures in this study relative to past studies. The SNOWPACK model was used to model the formation and evolution of spatially uniform crusts at a flat study plot as well as on a virtual slope. Persistent model cold temperature biases were found on the virtual slope, which resulted in delays in settling and densification relative to observations. A warm model bias was found for the flat simulation,and settling and layer water content exceeded what was observed. Both biases were likely related to meteorological inputs.
Star Discrepancy Computation
Creators: name: Nasev Angel
name: Peovski Borjan
Publisher: name: Zenodo
Year: 2023

description: This is our solution for the GECCO star discrepancy competition. We used a modified random search algorithm. The algorithm works by using random search in the first step, then in each other step it performs translations on the best solution so far, resulting in it trying to optimize the best solution it has found. This process is then repeated for several iterations.
Constraining the galaxy assembly in the early Universe with the ALPINE-ALMA [CII] survey: the importance of major mergers
Creators: name: Romano, Michael
Publisher: name: Zenodo
Year: 2023

description: Current galaxy evolution models suggest two major drivers of the galaxy mass build-up in the early universe, i.e., the accretion of cold gas from the circumgalactic/intergalactic medium, and the galaxy major mergers. Recent works have found a possible increase in the major merger fraction at early epochs, reviving the debate on which of the two processes dominates over the other.
We investigated the importance of major mergers in this context by using the data collected by the ALPINE-ALMA [CII] survey. This project took advantage of the ALMA capabilities to observe the rest-frame far-infrared [CII] 158 um line and continuum emission in a hundred of star-forming galaxies one billion years after the Big Bang. Along with ancillary multi-wavelength data and spectroscopic observations, ALPINE allowed us to conduct the first panchromatic study of such a large statistical sample of primordial galaxies, and a robust characterization of their morphology and kinematics.
We used the morpho-kinematic information provided by the [CII] line to identify major mergers in the distant universe. We obtained the first constraint on the major merger fraction from [CII] at z~5, finding that ~40% of normal galaxies was already undergoing a merging at that epoch. By combining our results with studies at lower redshift, we computed the cosmic evolution of the fraction and rate of merging galaxies, confronting them with predictions from different cosmological simulations. Finally, we compared the processes of merging and star formation as responsible for the growth of galaxies across cosmic time, finding that the contribution of major mergers to the star-formation rate density at z = 4–6 could range from 5% to nearly 30%, depending on different assumptions on the merger timescale. Our results reveal a significant merging activity in the early Universe, suggesting that major mergers could have had an important role in the overall process of the galaxy mass-assembly back in time.
KyberMat: Efficient Accelerator for Matrix-Vector Polynomial Multiplication in CRYSTALS-Kyber Scheme via NTT and Polyphase Decomposition
Creators: name: Tan, Weihang
name: Lao, Yingjie
name: Parhi, Keshab K.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Cryptography and Security (cs.CR)
subject: Hardware Architecture (cs.AR)
subject: FOS: Computer and information sciences

description: CRYSTAL-Kyber (Kyber) is one of the post-quantum cryptography (PQC) key-encapsulation mechanism (KEM) schemes selected during the standardization process. This paper addresses optimization for Kyber architecture with respect to latency and throughput constraints. Specifically, matrix-vector multiplication and number theoretic transform (NTT)-based polynomial multiplication are critical operations and bottlenecks that require optimization. To address this challenge, we propose an algorithm and hardware co-design approach to systematically optimize matrix-vector multiplication and NTT-based polynomial multiplication by employing a novel sub-structure sharing technique in order to reduce computational complexity, i.e., the number of modular multiplications and modular additions/subtractions consumed. The sub-structure sharing approach is inspired by prior fast parallel approaches based on polyphase decomposition. The proposed efficient feed-forward architecture achieves high speed, low latency, and full utilization of all hardware components, which can significantly enhance the overall efficiency of the Kyber scheme. The FPGA implementation results show that our proposed design, using the fast two-parallel structure, leads to an approximate reduction of 90% in execution time, along with a 66 times improvement in throughput performance.
description: Proc. 2023 IEEE/ACM International Conference on Computer Aided Design (ICCAD), San Francisco, CA, Oct. 29 - Nov. 2, 2023
Biophysical Characterization of a Biomimetic from the Tear Film Lipid Layer
Creators: name: Patterson, Matthew
Publisher: name: Graduate Studies
Year: 2014
Subjects: subject: Biophysics
subject: Biochemistry
subject: Tear Film Polar Lipids
subject: Langmuir Monolayer
subject: Brewster Angle Microscopy
subject: Surface Pressure-Area Isotherm
subject: Surface Pressure-Area Isocycle
subject: Differential Scanning Calorimetry
subject: Lysozyme Tear Film Inteactions
subject: Biophysics of Lipid Monolayers

description: Tear film is a three layered structure that lies adjacent to the cornea. It protects the eye from desiccation, bacterial infections, and injury. The biophysical properties of the polar lipid layer were investigated to further understand the role that these lipids may have in the properly functioning tear film. The investigation was accomplished through the use of Langmuir monolayers, Brewster angle microscopy, and differential scanning calorimetry. These experiments were conducted on a tear film biomimetic that consisted of 16:0/16:0 phosphatidylcholine (DPPC), 16:0/16:0 phosphatidylethanolamine (DPPE), 16:0 glucosylceramide (PGC), and 16:0 sphingomyelin (PSM), reflecting their in vivo molar ratios. All four lipids formed very stable monolayers indicating that the polar lipids stabilize the open eye tear film. Brewster Angle Microscopy indicated multilayer formation as a possible mechanism to prevent premature tear film collapse. Finally, tear lysozyme interaction studies indicated increased insertion when the barriers for hydrophobic interactions were minimal.
The return of the native
Creators: name: Hardy, Thomas, 1840-1928
Publisher: name: UCD Library, University College Dublin
Year: 2013
Subjects: subject: Hardy, Thomas, 1840-1928--Manuscripts

description: Original holograph manuscript of The Return of the Native by Thomas Hardy. First published in 1878, was Hardy’s 6th novel. It initially appeared as a 12-part series in the magazine Belgravia, where its somewhat controversial thematic content caused a stir. Subsequently, it has become one of Hardy’s best known and most popular novels. The manuscript of The Return of the Native follows an interesting and somewhat complicated path.
description: Acquisition Information: Hardy gave his manuscript to journalist and biographer Clement King Shorter ‘in the days of early friendship’. Shorter’s first wife, Dora Sigerson Shorter, was the daughter of Dr George Sigerson, physician and lecturer in medicine in the Catholic University and in University College Dublin. Shorter decided to bequeath the Hardy manuscript, as well as a section of his personal library, to the Royal University of Ireland (the antecedent body of UCD) in memory of his first wife.
description: Other Formats Available: Facsimile of the manuscript published, edited with a short introduction by Simon Gatrell (New York; London: Garland, 1986).
A Renewed Challenge for Change: Participatory Media Production for Transformative Change at EMMEDIA Gallery and Production Society
Creators: name: Becker, Eric Peter
Publisher: name: Graduate Studies
Year: 2014
Subjects: subject: Cinema
subject: Mass Communications
subject: Education--Technology
subject: Media Production
subject: Documentary
subject: National Film Board (NFB)
subject: Social Change
subject: Participatory Media Production
subject: Media Art
subject: EMMEDIA
subject: Challenge for Change
subject: Artist-run Centres

description: This research investigates an important initiative undertaken by Canada’s National Film Board (NFB) during the 1960s and 1970s called The Challenge for Change (CFC). The focus of this initiative was to address social justice issues specific to rural poverty in Canadian communities. A renewed interest and revitalization in the CFC principles including a process oriented, participatory (documentary) media production program focused on local, community-based social, political and environmental justice issues. This research identifies a variety of programs from 2002 to 2012 at EMMEDIA that shared many of the same principles of the CFC. The goal of this research was to evaluate the capacity of EMMEDIA’s media arts model to continue the work CFC started with an expanded goal of transformative change – social, political, and environmental. This research identifies the work EMMEDIA has done in process oriented, participatory media arts production and exhibition to facilitate a model for real transformative change.
NSV 11154 Is a New R Coronae Borealis Star
Creators: name: Kijbunchoo, Nutsinee
name: Clayton, Geoffrey C.
name: Vieux, Timothy C.
name: Dickerman, N.
name: Hillwig, T. C.
name: Welch, D. L.
name: Pagnotta, Ashley
name: Tang, Sumin
name: Grindlay, J. E.
name: Henden, A.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: NSV 11154 has been confirmed as a new member of the rare hydrogen deficient R Coronae Borealis (RCB) stars based on new photometric and spectroscopic data. Using new photometry, as well as archival plates from the Harvard archive, we have constructed the historical lightcurve of NSV 11154 from 1896 to the present. The lightcurve shows the sudden, deep, irregularly spaced declines characteristic of RCB stars. The visible spectrum is typical of a cool (Teff < 5000 K) RCB star showing no hydrogen lines, strong C2 Swan bands, and no evidence of 13C. In addition, the star shows small pulsations typical of an RCB star, and an infrared excess due to circumstellar dust with a temperature of ~800 K. The distance to NSV 11154 is estimated to be ~14.5 kpc. RCB stars are very rare in the Galaxy so each additional star is important to population studies leading to a better understanding the origins of these mysterious stars. Among the known sample of RCB stars, NSV 11154 is unusual in that it lies well above the Galactic plane (5 kpc) and away from the Galactic Center which suggests that its parent population is neither thick disk nor bulge.
description: 34 pages, 6 figures. Accepted for publication in the PASP
Archivos suplementarios; Métodos diagnósticos para lesiones de caries radicular, revisión sistemática
Creators: name: Contreras, Lidia
name: Cid, Camila
Publisher: name: Zenodo
Year: 2020
Subjects: caries radicular, diagnóstico, reproducibilidad, sensibilidad, especificidad

description: Archivos citados en memoria "Métodos diagnósticos para lesiones de caries radicular. Revisión Sistemática" para obtener título de Cirujano Dentista en la Universidad de Talca.
A Federated Learning Algorithms Development Paradigm
Creators: name: Popovic, Miroslav
name: Popovic, Marko
name: Kastelan, Ivan
name: Djukic, Miodrag
name: Basicevic, Ilija
Publisher: name: arXiv
Year: 2023
Subjects: subject: Distributed, Parallel, and Cluster Computing (cs.DC)
subject: FOS: Computer and information sciences

description: At present many distributed and decentralized frameworks for federated learning algorithms are already available. However, development of such a framework targeting smart Internet of Things in edge systems is still an open challenge. A solution to that challenge named Python Testbed for Federated Learning Algorithms (PTB-FLA) appeared recently. This solution is written in pure Python, it supports both centralized and decentralized algorithms, and its usage was validated and illustrated by three simple algorithm examples. In this paper, we present the federated learning algorithms development paradigm based on PTB-FLA. The paradigm comprises the four phases named by the code they produce: (1) the sequential code, (2) the federated sequential code, (3) the federated sequential code with callbacks, and (4) the PTB-FLA code. The development paradigm is validated and illustrated in the case study on logistic regression, where both centralized and decentralized algorithms are developed.
description: 19 pages, 3 figures, 5 algorithms, submitted to ECBS 2023
Footwear traction and lower extremity non-contact injury
Creators: name: Wannop, John
Publisher: name: Graduate Studies
Year: 2012
Subjects: subject: Engineering--Biomedical
subject: Footwear
subject: Traction
subject: injury
subject: Non-Contact
subject: Football

description: For the past forty years footwear traction has been thought to be one of the causes of non-contact lower extremity injury in sport. Previous studies have shown that rotational traction was associated with ACL injury, however, no studies have determined the relationship between footwear traction, both translational and rotational, and all lower extremity non-contact injuries. Therefore, the purposes of this thesis were to 1) determine if a relationship exists between an athlete’s specific footwear traction (both translational and rotational) and lower extremity non-contact injury and 2) determine how independently altering translational and rotational traction affects ankle and knee joint loading. Over the course of three years, 555 athletes had their footwear traction tested on the actual playing surface; either an artificial or natural grass field. The athletes were followed over each season and any injury that they sustained during a game was recorded by certified athletic therapists on site at the field. No differences in injury rate were seen between the artificial and natural grass surfaces. A relationship was found between rotational traction and lower extremity non-contact injury, with increases in rotational traction leading to an increase in injury rate. A relationship was also seen between translational traction and injury with the mid-range of translational traction leading to a higher injury rate. To determine how translational and rotational traction affect injury mechanism, three shoes were constructed that had independent alterations in translational and rotational traction. The footwear conditions consisted of a control shoe, a low rotational traction shoe and a high translational traction shoe. Joint loading was calculated with inverse dynamics on 10 athletes performing a v-cut and an s-cut movement in the three footwear conditions. The results indicate that both rotational traction as well as translational traction can affect the ankle and knee joint loading during football related movements. Coupled with the results of the injury study, although less clear for translational traction, it is believed that these increases in joint loading (joint moments and angular impulses) in the transverse and frontal plane are one of the possible mechanisms in terms of lower extremity non-contact injury.
Capacity of multidimensional constrained channels : estimates and exact computations
Creators: name: Louidor, Erez
Publisher: name: University of British Columbia
Year: 2010

description: This work considers channels for which the input is constrained to be from a given set of D-dimensional arrays over a finite alphabet. Such a set is called a constraint. An encoder for such a channel transforms arbitrary arrays over the alphabet into constrained arrays in a decipherable manner. The rate of the encoder is the ratio of the size of its input to the size of its output. The capacity of the channel or constraint is the highest achievable rate of any encoder for the channel. We compute the exact capacity of two families of multidimensional constraints. We also generalize a known method for obtaining lower bounds on the capacity, for a certain class of 2-dimensional constraints, and improve the best known bounds for a few constraints of this class. Given a binary D-dimensional constraint, a D-dimensional array with entries in {0,1,⃞} is called "valid", for the purpose of this abstract, if any "filling" of the '⃞'s in the array with '0's and '1's, independently, results in an array that belongs to the constraint. The density of '*'s in the array is called the insertion rate. The largest achievable insertion rate in arbitrary large arrays is called the maximum insertion rate. An unconstrained encoder for a given insertion rate transforms arbitrary binary arrays into valid arrays having the specified insertion rate. The tradeoff function essentially specifies for a given insertion rate the maximum rate of an unconstrained encoder for that insertion rate. We determine the tradeoff function for a certain family of 1-dimensional constraints. Given a 1-dimensional constraint, one can consider the D-dimensional constraint formed by collecting all the D-dimensional arrays for which the original 1-dimensional constraint is satisfied on every "row" in every "direction". The sequence of capacities of these D-dimensional generalizations has a limit as D approaches infinity, sometimes called the infinite-dimensional capacity. We partially answer a question of [37], by proving that for a large class of 1-dimensional constraints with maximum insertion rate 0, the infinite dimensional capacity equals 0 as well.
Nonlinear magnetic buoyancy instability and turbulent dynamo
Creators: name: Qazi, Yasin
name: Shukurov, Anvar
name: Tharakkal, Devika
name: Gent, Frederick A.
name: Bendre, Abhijit B.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Stratified disks with strong horizontal magnetic fields are susceptible to magnetic buoyancy instability (MBI). Modifying the magnetic field and gas distributions, this can play an important role in galactic evolution. The MBI and the Parker instability, in which cosmic rays exacerbate MBI, are often studied using an imposed magnetic field. However, in galaxies and accretion discs, the magnetic field is continuously replenished by a large-scale dynamo action. Using non-ideal MHD equations, we model a section of the galactic disc (we neglect rotation and cosmic rays considered elsewhere), in which the large-scale field is generated by an imposed $α$-effect of variable intensity to explore the interplay between dynamo instability and MBI. The system evolves through three distinct phases: the linear (kinematic) dynamo stage, the onset of linear MBI when the magnetic field becomes sufficiently strong and the nonlinear, statistically steady state. Nonlinear effects associated with the MBI introduce oscillations which do not occur when the field is produced by the dynamo alone. The MBI initially accelerates the magnetic field amplification but the growth is quenched by the vertical motions produced by MBI. We construct a 1D model, which replicates all significant features of 3D simulations to confirm that magnetic buoyancy alone can quench the dynamo and is responsible for the magnetic field oscillations. Unlike with an imposed magnetic field (arXiv:2305.03318,arXiv:2212.03215), the nonlinear interactions do not reduce the gas scale height, so the consequences of the magnetic buoyancy depend on how the magnetic field is maintained.
Seismic cycles, size of the largest events, and the avalanche size distribution in a model of seismicity
Creators: name: Aragón, L. E.
name: Jagla, E. A.
name: Rosso, A.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Geophysics (physics.geo-ph)
subject: FOS: Physical sciences

description: We address several questions on the behavior of a numerical model recently introduced to study seismic phenomena, that includes relaxation in the plates as a key ingredient. We make an analysis of the scaling of the largest events with system size, and show that when parameters are appropriately interpreted, the typical size of the largest events scale as the system size, without the necessity to tune any parameter. Secondly, we show that the temporal activity in the model is inherently non-stationary, and obtain from here justification and support for the concept of a "seismic cycle" in the temporal evolution of seismic activity. Finally, we ask for the reasons that make the model display a realistic value of the decaying exponent $b$ in the Gutenberg-Richter law for the avalanche size distribution. We explain why relaxation induces a systematic increase of $b$ from its value $b\simeq 0.4$ observed in the absence of relaxation. However, we have not been able to justify the actual robustness of the model in displaying a consistent $b$ value around the experimentally observed value $b\simeq 1$.
description: 11 pages, 10 figures
Representations of Identity and the Other Selves in Byron’s Major Works of 1812-1815
Creators: name: Radhwi, Mariam
Publisher: name: Graduate Studies
Year: 2014
Subjects: subject: Literature--English
subject: Romanticism
subject: Lord Byron

description: In his visual and verbal works of 1812-1815, Byron’s conception about personal and political identity progresses steadily. When observing the identities he had encountered during his travels, he realizes the flaws in existing binary definitions of self and other and represents identity in what I describe as the other selves. Manipulating the nineteenth-century metaphor of the separation between the outside and the inside, stereotypes about appearance, and prevalent literary conventions, Byron challenges his audience to read these works. His complex construction of both his protagonists and his tales about the lands which were under Ottoman rule generate multiple, and perhaps contrary, readings. The writings accompanying these texts and their numerous revised editions further enhance the multiple readings these works propose. I have interpreted Byron’s representations by using a historical approach, which correlates both his visual and verbal works with his personal writings and with the occurrences in the political and national spheres, especially the French revolution, the fall of Napoleon, and the Ottoman occupation of Greece. Identity in Byron’s major works of this period is an elusive construct which changes according to the changes in temporal and personal perspectives, and according to context.
Resonant structure in the disks of spiral galaxies, using phase-reversals in streaming motions from 2D Hα Fabry-Perot spectroscopy
Creators: name: Font, Joan
name: Beckman, John E.
name: Epinat, Benoît
name: Fathi, Kambiz
name: Gutiérrez, Leonel
name: Hernandez, Olivier
Publisher: name: arXiv
Year: 2011
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: In this article we introduce a technique for finding resonance radii in a disk galaxy. We use a two-dimensional velocity field in Hα emission obtained with Fabry-Perot interferometry, derive the classical rotation curve, and subtract it off, leaving a residual velocity map. As the streaming motions should reverse sign at corotation, we detect these reversals, and plot them in a histogram against galactocentric radius, excluding points where the amplitude of the reversal is smaller than the measurement uncertainty. The histograms show well-defined peaks which we assume to occur at resonance radii, identifying corotations as the most prominent peaks corresponding to the relevant morphological features of the galaxy (notably bars and spiral arm systems). We compare our results with published measurements on the same galaxies using other methods and different types of data.
description: 9 pages, 2 figures, 2 tables. Accepted for publication in ApJL
The Visual Content of Environmental Impact Assessments
Creators: name: Butt, Andrew MacDonald
Publisher: name: Graduate Studies
Year: 2014
Subjects: subject: Law
subject: FOS: Law
subject: information visualization
subject: environmental impact assessments
subject: Environmental Law
subject: Visual Communication
subject: visual literacy

description: Environmental decision-making is often a protracted, contentious process involving numerous stakeholders, and is often centered on a key document – the environmental impact assessment (EIA). The EIA presents the environmental data along with expert opinions, which are often described using visual forms - a term used in this context to cover various tables, maps, charts, illustrations and photos. This research focuses on how these visual forms are used inside environmental impact assessments. A content analysis of visual forms within the public records of environmental impact assessments was undertaken to determine a baseline usage frequency. To provide structure to the content analysis, the use of the Rodman-Felleman visual framework was used. This visual framework was shown to effectively map the usage frequencies to the main requirements under the Canadian Environmental Assessment Act thereby disclosing the subject focus for environmental data and expert opinions. The level of visual abstraction, a main axis of visual analysis, was assessed by a series of visual variables (e.g. visual size, orientation, background, etc.) to determine usage patterns and styles. From this secondary analysis of visual abstraction, a set of visual heuristics was developed along the lines of critical viewing practices for visuals within an environmental impact assessment. Further development of these visual heuristics could lead to improvements in the application and interpretation of visual forms within environmental impact assessments.
A Biomass Energy Production and Use Plan for the United States, 1983-90
Creators: name: U. S. Department Of Agriculture
name: U. S. Department Of Energy
name: U. S. Department Of Agriculture
name: U. S. Department Of Energy
Publisher: name: Unknown
Year: 1983
Subjects: Agricultural and Food Policy
Crop Production/Industries
Production Economics
Resource /Energy Economics and Policy

description: This report to the President and the Congress assesses the feasibility of achieving the Energy Security Act's goal of producing 8.4 billion gallons of alcohol per year--equal to 10 percent of all U.S. gasoline consumption--by 1990. The goal, though technologically attainable, is not economically feasible even under optimistic market scenarios because it would require $41 to $66 billion in Government subsidies over the 1983-90 period. A more realistic maximum potential, with existing subsidies, is 1.5 billion gallons of alcohol fuel per year.
Campaigning online : the internet, elections and democracy in Canada
Creators: name: TeBrake, Rebecca
Publisher: name: University of British Columbia
Year: 2010

description: As political engagement declines in Western democracies, the Internet has been held up as a promising site for citizen participation and engagement. This optimism has been fuelled by recent political events that seem to confirm the Internet's democratic potential. Barack Obama channelled the Internet's power for fundraising and voter mobilization in the 2009 U.S. election. Likewise, Iranian voters successfully used social media such as Twitter to organize protests of the country's 2009 presidential election. This paper presents a first look at how Canadian political parties are using and responding to online communication tools during elections campaigns. Specifically it examines the role of online communications tools in building and developing a campaign platform. Moreover, it discusses whether these activities represent a shift towards a strengthened democracy or are simply reflective of current political culture. The findings are based on data gathered through semi-structured interviews with political strategists involved in the 2008-09 federal, British Columbia provincial and Vancouver municipal elections. This study found that online communication during election campaigns has little influence on the shape of the policy platform. However, political parties have been quick to adopt new online communications platforms allowing them to market their candidates and policies. Moreover, the Internet has shaped traditional campaign functions allowing parties to recruit funds, voter information and volunteers online. Rather than fundamentally shifting the character of democracy in Canada, the current use of online communication tools seems to be defined by the existing political culture.
Spoiled Identity: Problem Gamblers and the Moral Management of Stigmatized Identities through Conversational Agency
Creators: name: Anderson, Murray
Publisher: name: Graduate Studies
Year: 2014
Subjects: subject: Psychology
subject: FOS: Psychology
subject: Clinical Psychology
subject: Social Work
subject: FOS: Sociology
subject: Educational Psychology

description: As of 2012, there were more than 100 studies on the prevalence and social impact of problem gambling in Canada. However, few qualitative psychological studies specifically explored the process of therapy for problem gamblers. This research initiative attempts to bridge this notable gap in the literature. In this action research inquiry, I explore the recalled experiences of therapeutic interactions of six problem gamblers and six registered clinical counsellors. The participants engaged in focus groups, individual interviews, and a teleconference that helped to foster a greater understanding of the stigma attached to “being” a problem gambler. Although there are many comprehensive works on the topic of stigma, I felt the quintessential work of Erving Goffman (1963) on the moral management of stigma and spoiled identity was a fitting lens through which to examine the plight of the problem gambler in counselling. In this exploratory inquiry, I found many examples of participant gamblers morally managing their identities, agentively adopting, challenging, or resisting various descriptions of their stigmatized status. My situational analyses highlighted how clients engaged in “healthy” resistance, agentively managing the potential for stigmatized or spoiled identities. These shared narratives brought awareness to the marginalized status of “being” a problem gambler, while providing an appreciation of ways in which clients and counsellors can collaboratively promote preferred ways of being. These findings also indicate that further sensitivity may be required for practitioners providing services to stigmatized populations, such as the individual with gambling problems. Implications for counselling theory, practice, and possible future research are discussed.
Topology Explains Why Automobile Sunshades Fold Oddly
Creators: name: Feist, Curtis
name: Naimi, Ramin
Publisher: name: arXiv
Year: 2012
Subjects: subject: Geometric Topology (math.GT)
subject: FOS: Mathematics

description: We use braids and linking number to explain why automobile shades fold into an odd number of loops.
description: 8 pages, 9 figures
Spatial approaches to a circular economy
Creators: name: Tsui, Tanya
Publisher: name: A+BE | Architecture and the Built Environment
Year: 2023

description: Rapid urbanization has exerted unsustainable pressures on the environment, and implementing circular economy (CE) in cities has been seen by policy makers as a potential solution for resource scarcity. Scholars have therefore called for an understanding of the spatial aspects of CE that go beyond urban governance strategies, engendering the recent integration of spatial disciplines, such as urban planning and regional economics, into the study of CE. Using the Netherlands as a case study, this research asks the question, "what determines the locations and scales of closing material loops in a circular economy?”, using both quantitative and qualitative spatial analysis methods, and both present- and future-oriented perspectives. Novel data sources on locations of material stocks and flows were used, including waste statistics and material stock maps. Research results were presented in five chapters, each corresponding to an academic paper. Current locations and scales are identified by analyzing the locations of waste reuse clusters in the Netherlands, and future locations and scales are addressed by identifying the optimal locations and service areas of circular construction hubs in Amsterdam. As an overall conclusion, I identified 5 conceptual and methodological tensions that occur when determining locations and scales for closing material loops: urban manufacturing vs urban mining, clusters vs hubs, spaces vs people vs materials, present vs future, and quantitative vs qualitative.
description: A+BE | Architecture and the Built Environment, No. 20 (2023): Spatial approaches to a circular economy
LES TRADITIONS ET LE STYLE DANS LES FABLES DE LA FONTAINE
Creators: name: Ganiev, Fazliddin
Publisher: name: Zenodo
Year: 2023

description: Dans cet article est écrit sur les traditions et le style dans les fables de la Fontaine. Jean de La Fontaine renouvelle le genre de littéraire de la fable mais il emprunte certains éléments stylistiques et noyaux thématiques des fabulistes anciens. L'analyse des caractéristiques du genre de la fable permet de comprendre la raison pour laquelle Jean de La Fontaine utilise un genre littéraire ancien dans son œuvre. La fable sert à divertir les lecteurs grâce au contenu agréable et divertissant des intrigues narratives.
Overview Of E-Infrastructure And Applications In Africa
Creators: name: Becker, Bruce
Publisher: name: Zenodo
Year: 2013
Subjects: e-science, Africa, ska, H3ABioNet, HyVIC, BGI, collaboration

description: The keynote presentation from the CHAIN-REDS/ei4Africa workshop at the 2013 Ubuntunet Connect Conference. The presentation covers the following aspects :

Opening thoughts on being African

Scientific collaboration in Africa – some example

Research in Africa – everything else

Infrastructures collaborating with communities

How do we sustain e-Science in Africa ?
description: This is the draft version.