1,721,254 research outputs found
Where do unions add value? Union structure, union strength and manufacturing productivity growth in the OECD
MP : an application specific language
This work describes the formal definition and implementation of a new distributed programming language called MP (Message Passer). The syntax, semantics and a prototype implementation of the language are described in detail. The semantics has been expressed in terms of a subset of Hoare's CSP. A number of example programs are also provided in order to illustrate the language in use.A key concept in MP is the object. Primarily these act as templates from which an arbitrary number of processes may be created. They also promote modular programming. A typical program declares several objects and instantiates them, as necessary, to create a collection of distributed, concurrently executing sequential processes. Objects include a type-secure public binding-interface and a body of sequential code. A binding-interface contains an arbitrary number of typed input and output parameters. Through these, a process may interact with other processes. These interactions are specified by connecting (binding) pairs of input and output parameters. Moreover, this is the only means by which a pair of processes may interact. Indeed, shared variables and message passing are forbidden. By restricting inter-process interactions in this way, the language is able to guarantee specific safety and liveness properties of programs. Furthermore, programs can be constructed in a modular fashion in the knowledge that these safety and liveness properties will always hold.The programming model supports synchronous and asynchronous programs. Synchronous programs are suitable for applications which exhibit geometric concurrency. However, the main use of the language is with distributed embedded systems. These tend to employ an algorithmic distribution of coarse grained asynchronous processes and MP's asynchronous programming model fits this class of application extremely well.</p
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[Quilt Section with Dedications to Richard Rogers, Mark Riley, and Craig]
Photograph of a quilt section with dedications to Richard Rogers, Mark Riley, and Craig
A Rapid Method of Determining Bacterial Sensitivity
Antimicrobial agents are generally used by physicians In one of three ways: to treat specific infections, to treat fever, and to treat clinical entities as colds, pneumonia, diarrhea and meningitis without regard for the specific cause. | Sensitivity testing In vitro, is used as a guide to treat specific infections by indicating inhibition of growth of the causative organisms while in the presence of one or more antimicrobial agents. These tests usually require the testing of several antimicrobial agents to establish their relative effectiveness against such organisms. This offers the clinician a choice of antimicrobial agents to use since factors as expense, availability and tolerance enter into the over-all picture of therapy. Also, the simultaneous testing of several antimicrobial agents at once reduces the time required to obtain the information of sensitivity in contrast to testing each one individually. The differing spectrums of the various antimicrobial agents and the variety of pure and mixed cultures obtained from infectious material, combined with the apparent adapt ability of bacterial cells to resist the effects of these antimicrobial agents has prompted the use of sensitivity testing for effective treatment of individual cases. Several in vitro methods are in common use and the sensitivity results obtained with any one strain of organism by these various methods may show discrepancies, however, the limits of susceptibility seem broad enough to make them sufficiently accurate for this purpose.ProQuest Traditional Publishing Optio
Gil Michel, Nick Rogers, Mark Blount, Hal Easter, Carolyn Walton, and Karen Easter
This 1965 photograph shows performers of the Mountain Youth Jamboree in Hubert Hayes Memorial Log Cabin. Children identified in this photograph from left to right: Gil Michel, Nick Rogers, Mark Blount, Hal Easter, Carolyn Walton, and Karen Easter. Founder and director of the Mountain Youth Jamboree, Hubert H. Hayes (1901-1964) auditioned and directed youth to perform in folk dance, music, and folk and ballad singing. The jamboree was held in the Asheville City Auditorium (now known as Thomas Wolfe Auditorium) from 1948 to 1973, and Hayes’ wife, Leona Trantham Hayes (1913-1989) continued to direct the program after his death in 1964. Hubert Hayes was an author, playwright, and alumni of Duke University
Going Beyond Counting First Authors in Author Co-citation Analysis
The present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Variations on the Author
“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
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