1,721,518 research outputs found
Recommended from our members
[Letter from Stephen Mark Dobbs to DBAE institute heads, August 9, 1989]
No full textPhotocopy of a letter from Stephen Mark Dobbs to the heads of the Discipline Based Art Education institutes requesting lists of principles that are involved in the program be sent to his offices. Dobbs is making this request in order to send out a section from the NASSP Bulletin that spoke about the DBAE programs
Recommended from our members
[Letter from Stephen Mark Dobbs to the heads of DBAE programs, August 21, 1989]
No full textPhotocopy of a letter from Stephen Mark Dobbs to the heads of institutions where Discipline Based Art Education programs are in practice. Dobbs is requesting a list of principles involved in the programs in order to send out a copy of a section on DBAE programs that was included in the NASSP Bulletin
In memoriam: Stephen Mark Hunter, associate director of career services
No full textStephen Mark Hunter of Blacksburg, associate director career services at Virginia Tech, died Thursday, June 24th in the Roanoke Trauma Center. He was 50 years old.</p
Recommended from our members
[AIDS Memorial Quilt Panel for Stephen Mark Tarver]
No full textPhotograph of the AIDS memorial quilt panel for Stephen Mark Tarver. Quilt block number is 3479. Photograph of quilt has been cropped and mounted to a 4" x 6" index card
Causal structures in lie groups and applications to stability of differential equations
No full textThesis (Ph.D.)--Massachusetts Institute of Technology, Dept. of Mathematics, 1980.MICROFICHE COPY AVAILABLE IN ARCHIVES AND SCIENCE.Vita.Bibliography: leaves 179-181.by Stephen Mark Paneitz.Ph.D
Properties of sodium and lithium polysulphides
No full textThe sodium-sulphur battery offers great promise of satisfying the criteria for a high energy density battery system suitable for use in automotive,rail traction and load levelling applications. A potential improvement to the sodium-sulphur system is the use of a mixed sodium/lithium electrode. Various methods of synthesis of pure samples of sodium and lithium polysulphides have been developed, including two novel preparations of lithium polysulphides. One of these uses an organic solvent reaction medium, the other makes use of an aluminium separator in an electrochemical cell. Several high temperature techniques involving the use of sodium, silver and sodium/lithium beta-aluminas were investigated and this required the preparation of these materials. The phase diagrams of both the sodium-sulphur and lithium-sulphur systems exhibit a two liquid region. The behaviour of the edge of this region in the ternary system lithium monosulphide-sodium monosulphide sulphur has been investigated with a view to improving the performance of a sodium-sulphur battery by using a mixture of sodium and lithium. The procedure consisted of quenching equilibrated samples followed by mechanical separation of the different phases present and identification by chemical analysis. A similar procedure has been applied to the one liquid one solid phase boundary of the ternary system for the same purpose. In this case it was necessary to design and build a high temperature centrifuge to achieve satisfactory phase separation. A solid state electrochemical cell has been used to measure the activity of sulphur vapour above sodium/lithium polysulphide melts. Using a mathematical model for the melt, the activity data were used to calculate free energy values for the stepwise formation of polysulphide anions it in the liquid state. These values have been used to calculate the distribution of anions of different chain lengths in a melt and to calculate a theoretical ternary phase diagram. The density and conductivity of a lithium polysulphide melt containing 66 atom percent sulphur has been determined as a function of temperature.</p
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe 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
Get PDF“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
Purine nucleotide biosynthesis in Escherichia coli K12 Molecular biology of the purB gene
No full textSIGLEAvailable from British Library Document Supply Centre- DSC:DX173397 / BLDSC - British Library Document Supply CentreGBUnited Kingdo
- …
