Digital Commons Network^™

Optically Induced Periodic Structures In Smectic-C Liquid Crystals, Antal Jákli, A. Vajda, E. Benkler, Janossy, Peter Palffy-Muhoray

Antal Jakli

We explore periodic structures of smectic-C (SmC) liquid crystals, induced optically by a polarization grating. The studied cells contain a passive surface of rubbed polyimide and an active photosensitive substrate of ate-dye doped polyimide. In a nematic phase the director field can be periodic independent of the angle between the grating vector and the rubbing direction. In the SmA phase periodic structure can be induced only by layer undulations. The SmC behaves similarly to the nematic phase, but the director can rotate only on a cone, which results in a more complex geometry. The periodic pattern is superimposed with four …

The Fragmentation Of Self Within The Indian Novel, Michele Gibney

Michele Gibney

With the novel Midnight’s Children, Rushdie forged a new path for novel-writing. In his epic story the main character became split into two in order to show the many facets of Indian culture. Instead of gaining an understanding of just one way of life, the reader became privy to all the stories being lived in such places as the Methwold estates, the surreal Sundarbans, and the Magician’s Ghetto. The story of one, single individual was lost in the cacophony of voices that each had their own tale to tell in Rushdie’s novel. This new form of writing, which favored the …

A Review Of Shellfish Restoration As A Tool For Coastal Water Quality Management., Michael A. Rice

Michael A Rice

In many areas, coastal residents and others oppose establishment of bivalve molluscan aquaculture projects on the basis of perceived negative environmental impacts. Often overlooked are positive environmental impacts of shellfish aquaculture that can potentially mitigate the impacts of other anthropogenic activities. Filter feeding by populations of bivalve mollusks is reviewed with respect to their ability to act as an estuarine filter, increase clarity of coastal waters and facilitate the removal of nitrogen and other nutrients from eutrophic coastal waters. Most species of cultured bivalve mollusks clear particles from waters at rates of 1 to 4 L/h, and populations of shellfish …

Truth-Bonding And Other Truth-Revealing Mechanisms For Courts, Robert Cooter, Winand Emons

Robert Cooter

In trials witnesses often gain by slanting their testimony. The law tries to elicit the truth from witnesses by cross-examination under threat of criminal prosecution for perjury. As a truth-revealing mechanism, perjury law is crude and ineffective. We develop the mathematical form of a perfect truth-revealing mechanism, which exactly offsets the gain from slanted testimony by the risk of a possible sanction. Implementing an effective truth-revealing mechanism requires a witness to certify accuracy by posting bond. If events subsequently prove that the testimony was inaccurate, the witness forfeits the bond. By providing superior incentives for telling the truth, truth-bonding could …

An Exploration Into Employee Participation Using A Scaling Approach, James A. Belohlav

James A. Belohlav

No abstract provided.

Canadian Medical Officers In The Royal Navy--World War Ii, Vivian C. Mcalister

Vivian C. McAlister

"Congressional Opposition To The American Presidency," Inaugural Address At Oxford University, David R. Mayhew

David Mayhew

No abstract provided.

"The Congressional Elections And Their Consequences," At Annual Colloquium Of American Politics Group & British Association For American Studies, Us Embassy, London, David R. Mayhew

David Mayhew

No abstract provided.

A Feminist ‘Attack’ On Post-Structuralist And Psychoanalytical Readings Of Hamlet, Michele Gibney

Michele Gibney

This paper will do three things, the first of which will be to describe Jaqueline Rose’s argument within her essay, “Hamlet—The Mona Lisa of Literature.” The second task of this paper will be to explain what is at stake within Rose’s essay as it relates to previous criticism such as that of Irigaray, Freud, Woolf, and Derrida. Finally, by drawing upon the idea (in Rose’s paper) of femininity as a fetishisized concept that equals the opposite of “good” a correlation in opposition will be drawn between what she is trying to accomplish and what Freud argues in “The Theme of …

Covert Shells, John Christian Smith

John Christian Smith

The potential for covert communications exist anywhere that legitimate communication channels are in use. In order to maintain control of the channel once exploited, the insertion of a backdoor Trojan horse server, to be used with a client that provides shell access, is often a necessary prerequisite to establishing and using a covert channel long term.

We discuss covert channel communications methods ranging from embedded channels to disguised protocols. What follows is a review of available covert shell tools. The underground, historical evolution of covert shells is reviewed, focusing on selected, available tools, which range from simple encapsulation methods to …

Issues In Quantifying Variability From A Dynamical Systems Perspective, Joseph Hamill, William J. Mcdermott, Jeffrey M. Haddad

Joseph Hamill

Variability is a critical aspect of a dynamical systems analysis. Because there are a number of numerical techniques that can be used in such an analysis, the calculation of variability has several issues that must be addressed. The purpose of this paper is to present a variety of quantitative methods for investigating variability from a dynamical systems perspective. The paper is divided into two major sections covering discrete and continuous methods. Each of these sections is subdivided into two sections. Within discrete methods, we discuss, first, the calculation of the discrete relative phase from a time-series history of two parameters …

Media Coverage: Wen Ho Lee, China And Beyond, Xinshu Zhao

Professor Xinshu ZHAO

No abstract provided.

The Effectiveness Of Employment Vouchers: A Simple Approach, Dennis Snower, Michael J. Orszag

Dennis Snower

No abstract provided.

Resonance Line Scattering Polarization In Optically Thin Planar Equatorial Disks., Richard Ignace

Richard Ignace

This paper is the third in a series on the anisotropic scattering by optically thin resonance lines in extended stellar envelopes. Considered here is the polarization arising from resonance line scattering in equatorial disks. The shape of the polarized line profile is analytically derived under simplifying conditions of constant expansion or rotation for thin lines, with stellar occultation and finite star depolarization effects also included. The polarized profiles for the two cases are radically different. Moreover owing to the symmetries, rotation leads to profiles in both Q_ν and U_ν, whereas only a Q_ν profile survives for …

The World Seduces Man. His Home Grounds Him., Michele Gibney

Michele Gibney

Between Untouchable and The Bachelor of Arts there is a world of difference in the basic situations of the main characters. One is an uneducated street sweeper and the other is a University graduate, and both have a different conception of the British. However, there is also a common thread that unites the two novels in the main characters concluding acceptance of the “home”/India over the “world”/England. Thus, although different values are assigned to the importance of British colonialism within the texts, in the end each novel comes to a stand wherein Indian culture is favored over the British.

The Epidemiology And Natural Course Of Eating Disorders In Young Women From Adolescence To Young Adulthood, Peter M. Lewinsohn, Ruth H. Striegel-Moore, John R. Seeley

Ruth Striegel Weissman

Accidental Diasporas And External 'Homelands' In Central And Eastern Europe: Past And Present, Rogers Brubaker

Rogers Brubaker

No abstract provided.

Clustering Irregular Shapes Using High-Order Neurons, H. Lipson, Hava Siegelmann

Hava Siegelmann

This article introduces a method for clustering irregularly shaped data arrangements using high-order neurons. Complex analytical shapes are modeled by replacing the classic synaptic weight of the neuron by high-order tensors in homogeneous coordinates. In the first- and second-order cases, this neuron corresponds to a classic neuron and to an ellipsoidalmetric neuron. We show how high-order shapes can be formulated to follow the maximum-correlation activation principle and permit simple local Hebbian learning. We also demonstrate decomposition of spatial arrangements of data clusters, including very close and partially overlapping clusters, which are difficult to distinguish using classic neurons. Superior results are …

Interview With Howard Sherman In Democratic Left, Howard J. Sherman, Solveig Wilder

HOWARD J SHERMAN

Interview with Howard Sherman on Democratic Socialism, based on his book Reinventing Marxism. Interviewer Solveig Wilder comments: "If you're like me, you read a great deal searching for theories that you can apply to your activism. I recently discovered a book called, Reinventing Marxism, which succinctly covers so many of the questions that I've grappled with about Democratic Socialism. Author and DSA member Howard Sherman agreed to give me an interview so that other DSAers could find out about this useful resource."

Factor Analysis Of The Dsm-Iii-R Borderline Personality Disorder Criteria In Psychiatric Inpatients, Charles A. Sanislow, Carlos M. Grilo, Thomas H. Mcglashan

Charles A. Sanislow, Ph.D.

Objective: The goal of this study was to examine the factor structure of the DSM-III-R criteria for borderline personality disorder in young adult psychiatric inpatients.

Method: The authors assessed 141 acutely ill inpatients with the Personality Disorder Examination, a semistructured diagnostic interview for DSM-III-R personality disorders. They used correlational analyses to examine the associations among the different criteria for borderline personality disorder and performed an exploratory factor analysis.

Results: Cronbach’s coefficient alpha for the borderline personality disorder criteria was 0.69. A principal components factor analysis with a varimax rotation accounted for 57.2% of the variance and revealed three homogeneous factors. …

Bioeconomic Household Modelling For Agricultural Intensification, Gideon Kruseman

Gideon Kruseman

The study develops a bio-economic modelling framework that permits simultaneous assessment of the effects of technology change and policy measures on household welfare and agro-ecological sustainability indicators. The bio-economic modelling framework expands traditional farm household models to incorporate direct consumption utility functions, to allow for multiple objectives and to permit a meaningful interface with biophysical process models. The resulting model combines econometrically estimated equations in a mathematical programming framework. Model outcomes are analysed using metamodelling tecyhniques.

The bio-economic modelling framework is relevant for policy analysis related to resource degradation in developing countries. The model is applied to Cercle de Koutiala …

Exospheric Models For The X-Ray Emission From Single Wolf-Rayet Stars., R. Ignace, L. M. Oskinova

Richard Ignace

We review existing ROSAT detections of single Galactic Wolf-Rayet (WR) stars and develop wind models to interpret the X-ray emission. The ROSAT data, consisting of bandpass detections from the ROSAT All-Sky Survey (RASS) and some pointed observations, exhibit no correlations of the WR X-ray luminosity (L_X) with any star or wind parameters of interest (e.g. bolometric luminosity, mass-loss rate or wind kinetic energy), although the dispersion in the measurements is quite large. The lack of correlation between X-ray luminosity and wind parameters among the WR stars is unlike that of their progenitors, the O stars, which show …

Bezpośrednie I Pośrednie Efekty Wprowadzenia Ciągłego Odlewania Stali W Bilansie Emisji Zanieczyszczeń Z Huty Żelaza, Marian Mazur, Marek Bogacki, Robert Oleniacz

Robert Oleniacz

This paper presents a comprehensive analysis of the impact of continuous casting technology on emissions of air pollutants from "Katowice" Steelworks in Dąbrowa Górnicza (Poland). Sources of emissions occurring in the manufacturing process and emissions levels have been identified. Implementation of continuous casting of steel has increased the efficiency of production and brought substantial ecological effects.

English title: Direct and indirect effects of introduction of continuous casting of steel in the balance sheet of pollutant emissions from "Katowice" Steelworks.

Drug Combo Winning War On Rejection: Qeii Doctors Getting Amazing Results With Fk506, Rapamycin, Ann Graham-Walker

Vivian C. McAlister

Development Of High Performance Concrete Using Silica Fume At Relatively High Water-Binder Ratios, Hilmi Mahmud

Hilmi Mahmud

The aim of this study was to investigate the possibility of developing high performance concrete (HPC) using silica fume (SF) at relatively high water-binder ratios. For this purpose, water-binder ratios of 0.45 and 0.50 were considered. Test specimens were air and water cured and exposed to a medium temperature range of 20 °C to 50 °C. The compressive strength, modulus of elasticity and initial surface absorption (ISA) of hardened concrete were determined in the laboratory. Test results indicated that concrete under water curing offers the best results. The highest level of compressive strength and modulus of elasticity and the lowest …

An Autonomous Water Vapor Plume Tracking Robot Using Passive Resistive Polymer Sensors, S. Kazadi, R. Goodman, D. Tsikata, D. Green, H. Lin

Sanza Kazadi

A Support Vector Method For Clustering, Asa Ben-Hur, David Horn, Hava Siegelmann, Vladimir Vapnik

Hava Siegelmann

We present a novel method for clustering using the support vector machine approach. Data points are mapped to a high dimensional feature space, where support vectors are used to define a sphere enclosing them. The boundary of the sphere forms in data space a set of closed contours containing the data. Data points enclosed by each contour are defined as a cluster. As the width parameter of the Gaussian kernel is decreased, these contours fit the data more tightly and splitting of contours occurs. The algorithm works by separating clusters according to valleys in the underlying probability distribution, and thus …

Relaxation Dynamics Of Rubbed Polystyrene Thin Films, D. M. G. Agra, A. D. Schwab, J-H. Kim, Satyendra Kumar, A. Dhinojwala

Satyendra Kumar

Optical retardation measurements were used to probe the chain relaxation dynamics in rubbed polystyrene films of varying thicknesses on glass substrates. A model based on Kohlrausch-Williams-Watts relaxation was developed and used to determine the glass transition temperature (Tg) of the films. Results showed reductions of 15–20 K in Tg for thin films of thicknesses comparable to the radius of gyration as well as for cast films rubbed with different strengths. These results provide evidence of a faster relaxation dynamics relative to the polymer-substrate interface for thinner films and enhanced chain mobility at the polymer-air interface.

Disorder Eating, Acculturation, And Treatment-Seeking In A Community Sample Of Hispanic, Asian, Black, And White Women, Fary M. Cachelin, Catherine Veisel, Emilia Barzegarnazari, Ruth H. Striegel-Moore

Ruth Striegel Weissman

Abdominal Fluid Collection After Laparoscopic Cholecystectomy, Vivian C. Mcalister

Vivian C. McAlister