2,894 research outputs found
Data accompanying PLOS ONE article: "The Predictive Nature of Pseudoneglect for Visual Neglect: Evidence from Parietal Theta Burst Stimulation", by Alice Varnava, Martynas Dervinis, and Christopher D. Chambers. School of Psychology, Cardiff University.
No full text<p>The data and analyses layed out in this workbook are associated with the following paper published in PLOS ONE:<br>"The Predictive Nature of Pseudoneglect for Visual Neglect: Evidence from Parietal Theta Burst Stimulation"<br>DOI: 10.1371/journal.pone.0065851<br>AUTHORS: Alice Varnava; Martynas Dervinis; Christopher Chambers.<br>CORRESPONDING AUTHOR: Alice Varnava. [email protected]</p>
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RGB-D Human Detection and Tracking for Industrial Environments
No full textReliably detecting and tracking movements of nearby workers on the factory floor are crucial to the safety of advanced manufacturing automation in which humans and robots share the same workspace. In this work, we address the problem of multiple people detection and tracking in industrial environments by proposing algorithms which exploit both color and depth data to robustly track people in real time. For people detection, a cascade organization of these algorithms is proposed, while tracking is performed based on a particle filter which can interpolate sparse detection results by exploiting color histograms of people. Tracking results of different combinations of the proposed methods are evaluated on a novel dataset collected with a consumer RGB-D sensor in an industrial-like environment. Our techniques obtain good tracking performances even in an industrial setting and reach more than 30Hz update rate. All these algorithms have been released as open source as part of the ROS-Industrial project
Minnesota Solvation Database (MNSOL) version 2012
No full textThe Minnesota Solvation Database and User Manual is available for download as a .zip file named MNSolDatabase-v2012.The Minnesota Solvation Database consists of a collection of 3037 experimental free energies of solvation or transfer free energies for 790 unique solutes in 92 solvents (including water) and gas-phase M06-2X/MG3S optimized molecular geometries in Cartesian coordinates for the corresponding solutes. All of the 790 solutes in this database (541 neutrals and 249 singly-charged ions) contain at most the following elements: H, C, N, O, F, Si, P, S, Cl, Br, and I.Office of Naval Research (N00014-05-1-0538)National Science Foundation (CHE07-04974)Minnesota Supercomputing InstituteMarenich, Aleksandr V; Kelly, Casey P; Thompson, Jason D; Hawkins, Gregory D; Chambers, Candee C; Giesen, David J; Winget, Paul; Cramer, Christopher J; Truhlar, Donald G. (2020). Minnesota Solvation Database (MNSOL) version 2012. Retrieved from the University Digital Conservancy, https://doi.org/10.13020/3eks-j059
Germ cells in aberrant egg chambers differentiate into oocytes and nurse cells.
No full text<p>Ovarioles and egg chambers from wild type (A) and <i>cul-5<sup> EY21463</sup></i> mutant (B–H) females. (A, B) Wild type and many <i>cul-5</i> mutant egg chambers accumulate the oocyte marker Orb (white) in a single cell in the posterior of the follicle. (C–E) While some aberrant egg chambers containing more than 16 germ cells contain only a single Orb-positive cell (white; DNA labelled blue), others contain two (D) or more (E) Orb-positive cells. (F) Follicles with fewer than 16 germ line cells may also contain an Orb-positive cell. (G) Ovarioles that have undergone morphogenetic catastrophe still contain Orb-positive cells of variable size (Orb is labelled green, Vas in white). (H) The oocyte marker Bic-D accumulates in a pattern very similar to Orb in <i>cul-5</i> mutant egg chambers.</p
<i>cul-5</i> mutant ovarioles form aberrant egg chambers.
No full text<p>Ovarioles from control (A) and <i>cul-5<sup>EY21463</sup></i> mutant (B–L) females, labelled for Vas (white) and DNA (blue). (A, B) Control (A) and many <i>cul-5</i> mutant (B) ovarioles show normal morphology. In a substantial fraction of <i>cul-5</i> mutant ovarioles (C–J), one or several egg chambers contain more than 16 germ line cells (aberrant egg chambers). (C, D) Cysts in region III of <i>cul-5</i> mutant germaria are often irregularly shaped and fail to take up a oval or round shape as wild type cysts do. (E) Frequently, several follicles containing excess germ cells are observed in a single ovariole. (F) More rarely, <i>cul-5</i> mutant egg chambers contain less than 16 germ line cells. (G) More mature aberrant egg chambers can develop relatively normally. (H) Aberrant egg chambers are also observed in a different allelic combination. (I) In some <i>cul-5</i> mutant ovarioles, individual egg chambers are not separated by a stalk, but by two layers of follicular epithelium. (J) A fraction of <i>cul-5</i> ovarioles has germaria that do not contain germ cells. (K, L) In aged flies, a fraction of ovarioles undergoes morphogenetic catastrophe and lose the highly ordered structure of normally developing ovarioles. See <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0009048#pone-0009048-t001" target="_blank">Table 1</a> for quantification of this phenotype.</p
Chris Skinner: Christopher John Skinner 12 March 1953 – 21 February 2020, elected Fellow of the British Academy 2004
No full textChris Skinner was probably, globally, the very best statistician of his generation working on sample surveys, and someone who made an enormous contribution to social statistics in a number of research areas. In addition, as an academic leader he had an enormous impact on research methodology across the social sciences and in official statistics, and on training future generations of social scientists in methodology
Inefficiency
No full textWe introduce an ordinal model of efficiency measurement. Our primitive is a notion of efficiency that is comparative, but not cardinal or absolute. In this framework, we postulate axioms that we believe an ordinal efficiency measure should satisfy. Primary among these are choice consistency and planning consistency, which guide the measurement of efficiency in a firm with access to multiple technologies. Other axioms include symmetry, which states that the names of commodities do not matter, scale-invariance, which says that units of measurement of commodities does not matter, and strong monotonicity, which states that efficiency should decrease if the inputs and outputs remain static when the technology becomes unambiguously more efficient. These axioms characterize a unique ordinal efficiency measure which is represented by the coefficient of resource utilization. By replacing symmetry (the weakest of our axioms) with a very mild continuity condition, we obtain a family of path-based measures.Efficiency Measurement, Coefficient of Resource Utilization, Ordinal, Choice Consistency, Planning Consistency, Path-based
Changing media, homes and households: Cultures, technologies and meanings
No full text\ua9 2016 Deborah Chambers. All rights reserved. Media technologies have played a central role in shaping ideas about home life over the last two centuries. Changing Media, Homes and Households explores the complex relationship between home, householders, families and media technologies by charting the evolution of the media-rich home, from the early twentieth century to the present. Moving beyond a narrow focus on media texts, production and audiences, Deborah Chambers investigates the physical presence of media objects in the home and their symbolic importance for home life. The book identifies the role of home-based media in altering relationships between home, leisure, work and the outside world in the context of entertainment, communication and work. It assesses whether domestic media are transforming or reinforcing traditional identities and relations of gender, generation, class and migrancy. Mediatisation theory is employed to assess the domestication of media and media saturation of home life in the context of wider global changes. The author also develops the concept of media imaginaries to explain the role of public discourses in shaping changing meanings, values and uses of domestic media. Framed within these approaches, four chapters also provide in-depth case studies of the processes involved in media\u27s home adoption: early television design, family-centred video gaming, the domestication of tablet computers, and the shift from "smart homes" to today\u27s "connected" homes. This is an ideal text for students and researchers interested in media and cultural studies, communication, and sociology
An heroic epistle to Sir William Chambers, Knight, Comptroller General of His Majesty's works and author of a late Dissertation on oriental gardening : enriched with explanatory notes, chiefly extracted from that elaborate performance.
No full textOstensibly a satire on Sir William Chamber's Dissertation on oriental gardening, but largely political.In verse.Signatures: A-D².ESTCMode of access: Internet
Bank Asset Management: A Study of a Linear Program Model Developed by D. Chambers and A. Charnes
No full textSTATEMENT OF THE PROBLEM
Bank management is constantly faced with the task of maximizing asset profitability within the constraints of liquidity and safety. In an attempt to aid management in the solution of this problem, several asset management models and theories have been developed. One such model was developed by D. Chambers and A. Charnes and was presented in the July, 1961 issue of Management Science. This model utilizes a linear programming approach to determine an optimal asset portfolio which maximizes profits while satisfying a bank\u27s liquidity and safety needs. The purpose of this thesis is to critique this model.
PROCEDURES OR METHODS
This thesis examines both liquidity and safety from a theoretical standpoint. Criteria are developed based on theory and the Chambers\u27 and Charnes\u27 model is judged by its ability to satisfy these criteria. Theories other than those concerning liquidity and safety are studied including priority of funds, yield computations, and the interrelationships which exist between a bank\u27s liabilities and assets. Various models other than Chambers\u27 and Charnes\u27 model (such as DeLong\u27s, Corns\u27, and Robinson\u27s) are presented to inform the reader of what has been accomplished to date in the field of bank asset management.
RESULTS
It was found that the amount of liquidity needed by a tank varies according to loan and deposit fluctuations; each bank having its own distinctive set of circumstances influencing these loan and deposit fluctuations. The degree of safety required by a bank varies according to the risks present within asset categories and the individual bank\u27s concentration of assets within that category. It was moreover determined that the amount of liquidity needed varied in accordance with the degree of safety, although the reverse situation was not true. Yield computations must give effect to the tax free qualities of certain bonds and should give effect to depositor\u27s borrowings being more profitable than loans to non-depositors. A commercial bank must utilize priorities in allocating funds. These priorities are established as a result of practical considerations based on a bank\u27s purpose. In order, these priorities are; meeting legal requirements, maintaining liquidity for deposit withdrawals, satisfying customer\u27s legitimate loan demands, and investing residual funds.
CONCLUSIONS
The Chambers\u27 and Charnes\u27 model was found deficient from several aspects in solving the bank asset management problem: The priority of funds concept (which it ignored) precludes the selection of an asset portfolio based purely on yields; the model did not adequately determine how much liquidity a bank should have; and yield computations were faulty. On the other hand, Chambers\u27 and Charns\u27 use of the Federal Reserve\u27s Form for Analyzing Bank Capital in determining capital adequacy or safety was found to be sufficient.
This thesis proposes a model using a hard-core approach to determine liquidity needs and the aforementioned Federal Reserve form to determine capital adequacy. The safety and liquidity factors are then integrated within a priority of funds framework. This model, without further empirical research into the determinants of future customer behavior and asset risks, most adequately satisfies the criteria and assumptions of this thesis, although it is by no means an optimal solution to the asset management problem
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