Berne-ing the Soviet Copyright Codes: Will the U.S.S.R. Alter Its Copyright Laws to Comply with the Berne Convention?

What changes need to be made in the Soviet copyright codes in order to bring them into compliance with the provisions of Berne? And is it likely that these changes will be accomplished in the near future? This comment will attempt to answer these questions. While these issues have already been addressed in regard to the United States, nothing similar has yet been attempted for the Soviet Union. In light of the U.S.S.R.\u27s announcement of its intent to accede to the Berne Convention, this analysis is now more timely than ever

Architecture as the background to collective life

This project develops an approach towards the arrangement and design of the primary elements - public facilities and spaces - that necessarily complement the provision of subsidised housing in South Africa. The historical response to the housing shortage in South Africa has been the provision of a remarkable number of individual housing units, but with insufficient funds and attention given to the urban infrastructure, public spaces and facilities that go hand in hand with housing in livable urban environments. This project considers a subsidy housing project where the social facilities are considered upfront, and are seen as an opportunity to create interesting, people-centred places in the development - this thesis is the search for an architecture which forms the backdrop, and framework for growth, for collective urban life. This paper is structured around six sections: thinking, siting, urban design, programming, making and designing. These sections explore, respectively, the theoretical proposal with regards to social facilities and public spaces, the strategic siting of an area of subsidised housing and its associated primary elements, an urban design proposal for the whole development, the programming of the whole site and the individual cluster of facilities that I consider in more detail, the spatial and technological realisation of the public fronts of three case study buildings, and finally the exploration and manifestation of these ideas through a design. My project is being done in conjunction with another student, Rob Richardson, who is looking at creative housing within the limit of the government subsidy. Together we make a proposal for an overall living environment which takes the form of an acupunctural insertion of subsidised housing and the associated primary elements into an area of Wynburg, Cape Town

Entangled granular media

We study the geometrically induced cohesion of ensembles of granular "u-particles" which mechanically entangle through particle interpenetration. We vary the length-to-width ratio $l/w$ of the u-particles and form them into free-standing vertical columns. In laboratory experiment we monitor the response of the columns to sinusoidal vibration (frequency $f$, peak acceleration $\Gamma$). Column collapse occurs in a characteristic time, $\tau$, which follows the relation $\tau = f^{-1} \exp(\Delta / \Gamma)$. $\Delta$ resembles an activation energy and is maximal at intermediate $l/w$. Simulation reveals that optimal strength results from competition between packing and entanglement.Comment: 4 pages, 5 figure

Getting Started in Your Neighborhood: Piloting Community Health Teams through a Multi-Payer Approach

The Care Transformation Collaborative of Rhode Island (CTC), a patient-centered medical home initiative managed by UMass Medical School, explains how primary care practices can build a medical neighborhood by creating a community health team to provide behavioral health and social support services to patients with high-cost, complex care needs. CTC used a multi-payer approach to pilot and evaluate two community health teams in two diverse areas of Rhode Island

Mi Cuerpo, Nuestra Responsabilidad: Using Photovoice to describe the assets and barriers to sexual and reproductive health among Latinos in North Carolina

Latinos in North Carolina experience disparities in sexual and reproductive health. To identify and explore assets for and barriers to sexual and reproductive health in the Latino community, an academic-community partnership engaged community health workers (CHW) in Photovoice, a participatory qualitative research methodology. Five sessions were completed in which CHW agreed on photo assignments and discussed the photos. Themes included the role of men, cultural taboos, and the effect of undocumented immigrant status on access to resources. Findings were presented at a community forum. Building on the strengths of CHW to reduce barriers to sexual and reproductive health is a viable strategy to address disparities

High-resolution x-ray diffraction study of the heavy-fermion compound YbBiPt

YbBiPt is a heavy-fermion compound possessing significant short-range antiferromagnetic correlations below a temperature of $T^{\textrm{*}}=0.7$ K, fragile antiferromagnetic order below $T_{\rm{N}}=0.4$ K, a Kondo temperature of $T_{\textrm{K}} \approx1$ K, and crystalline-electric-field splitting on the order of $E/k_{\textrm{B}}=1\,\textrm{-}\,10$ K. Whereas the compound has a face-centered-cubic lattice at ambient temperature, certain experimental data, particularly those from studies aimed at determining its crystalline-electric-field scheme, suggest that the lattice distorts at lower temperature. Here, we present results from high-resolution, high-energy x-ray diffraction experiments which show that, within our experimental resolution of $\approx6\,\textrm{-}\,10\times10^{-5}$ \AA, no structural phase transition occurs between $T=1.5$ and $50$ K. In combination with results from dilatometry measurements, we further show that the compound's thermal expansion has a minimum at $\approx18$ K and a region of negative thermal expansion for $9<T<18$ K. Despite diffraction patterns taken at $1.6$ K which indicate that the lattice is face-centered cubic and that the Yb resides on a crystallographic site with cubic point symmetry, we demonstrate that the linear thermal expansion may be modeled using crystalline-electric-field level schemes appropriate for Yb$^{3+}$ residing on a site with either cubic or less than cubic point symmetry.Comment: 7 pages, 3 figures, submitted to Phys. Rev.

Fragile antiferromagnetism in the heavy-fermion compound YbBiPt

We report results from neutron scattering experiments on single crystals of YbBiPt that demonstrate antiferromagnetic order characterized by a propagation vector, $\tau_{\rm{AFM}}$ = ($\frac{1}{2} \frac{1}{2} \frac{1}{2}$), and ordered moments that align along the [1 1 1] direction of the cubic unit cell. We describe the scattering in terms of a two-Gaussian peak fit, which consists of a narrower component that appears below $T_{\rm{N}}~\approx 0.4$ K and corresponds to a magnetic correlation length of $\xi_{\rm{n}} \approx$ 80 $\rm{\AA}$, and a broad component that persists up to $T^*\approx$ 0.7 K and corresponds to antiferromagnetic correlations extending over $\xi_{\rm{b}} \approx$ 20 $\rm{\AA}$. Our results illustrate the fragile magnetic order present in YbBiPt and provide a path forward for microscopic investigations of the ground states and fluctuations associated with the purported quantum critical point in this heavy-fermion compound.Comment: 5 pages, 3 figure

Flutter Analysis of the Thermal Protection Layer on the NASA HIAD

A combination of classical plate theory and a supersonic aerodynamic model is used to study the aeroelastic flutter behavior of a proposed thermal protection system (TPS) for the NASA HIAD. The analysis pertains to the rectangular configurations currently being tested in a NASA wind-tunnel facility, and may explain why oscillations of the articles could be observed. An analysis using a linear flat plate model indicated that flutter was possible well within the supersonic flow regime of the wind tunnel tests. A more complex nonlinear analysis of the TPS, taking into account any material curvature present due to the restraint system or substructure, indicated that significantly greater aerodynamic forcing is required for the onset of flutter. Chaotic and periodic limit cycle oscillations (LCOs) of the TPS are possible depending on how the curvature is imposed. When the pressure from the base substructure on the bottom of the TPS is used as the source of curvature, the flutter boundary increases rapidly and chaotic behavior is eliminated

PAC Learing of One-Dimensional Patterns

Developing the ability to recognize a landmark from a visual image of a robot\u27s current location is a fundamental problem in robotics. We consider the problem of PAC-learning the concept class of geometric patterns where the target geometric pattern is a configuration of k points on the real line. Each instance is a configuration of n points on the real line, where it is labeled according to whether or not it visually resembles the target pattern. To capture the notion of visual resemblance we use the Hausdorff metric. Informally, two geometric patterns P and Q resemble each othe runder the Hausdorff metric, if every point on one pattern is close to some point on the other pattern. We relate the concept class of geometric patterns to the landmark recognition problem and then present a polynomial-time algorithm that PAC-learns the class of one-dimensional geometric patterns. We also present some experimental results on how our algorithm performs