40 research outputs found
Studies with Artificial Fever in Experimental Tuberculosis
No full textAuthor Institution: Department of Medical and Surgical Research, Ohio State Universit
An Analytical Study of the Relationship Between God and Man in Three Plays of Paddy Chayefsky
No full textThis study attempts to show the author\u27s levels of presenting man and God to a modern society through the physical, the metaphysical, and the theological in three of his plays, Gideon, The Tenth Man, and The Passion of Josef D. In these plays he has integrated these elements with the philosophical and has tried to understand human nature from the point of view of God and man as well as man\u27s concern with his fellow man, using the levels and the milieu of society
University-community relations and the need for a representational discourse : exploring town-gown at the University of Pennsylvania
No full textThesis (M.C.P.)--Massachusetts Institute of Technology, Dept. of Urban Studies and Planning, 2005.Includes bibliographical references (p. 117-123).This thesis examines university-community relations, arguing that the current discourse requires rigorous theoretical attention to the use of representation in media and in physical design to adequately gauge and understand this relationship. Modeled after Naomi Carmon's framework of urban redevelopment, the author provides a new framework for understanding eras of university-community partnerships. Then, the author synthesizes a series of theoretical constructs to develop the representational discourse, to be used in a more rigorous analysis of university-community relationships. Drawing on John Gaventa's framework of power, the study closely examines the University of Pennsylvania and analyzes the University's use of imaging, narrative, and other forms of representation since the 1960s as a way to ensure and perpetuate its dominance. Ultimately, this thesis seeks to inform the ever-evolving discourse around neighborhood change in relation to "anchor institutions," and offers recommendations for points of intervention on the part of communities, planning practitioners, university officials, and theoreticians.by Ariel H. Bierbaum.M.C.P
There was a town in beautiful Silesia – Paul Petras’ love confession towards Grünberg
No full textDer vorliegende Beitrag ist dem Schaffen des Lyrikers und Verlegers Paul Petras gewidmet. Er wurde 1860 im damaligen Grünberg in Schlesien (heute: Zielona Góra) geboren und ist ein Beispiel für einen schlesischen Mundartdichter. Paul Petras gehört zu den bekannten Persönlichkeiten des alten Grünbergs und wird heute im gleichen Atemzug neben den Namen wie Georg Beuchelt, Otto Julius Bierbaum und Wilhelm Levysohn erwähnt. Die Verfasserin des Beitrags präsentiert in ihrem Text die Biographie des schlesischen Schriftstellers, analysiert dessen ausgewählte Werke (Kurzgeschichten und Gedichte) und versucht, der Frage nach der zeitgenössischen Rezeption von Petras’ literarischem Erbe in Zielona Góra und Deutschland nachzugehen. An dieser Stelle gilt es, die Worte des [polnischen] Regionalhistorikers Prof. Hieronim Szczegóła anzuführen: „für die Bewohner von Zielona Góra und Nordschlesien ist dieses Schaffen ein Element der Geschichte,
Tradition und ein selten anzutreffendes Beispiel für die Liebe der [dem Dichter(Herzen) so nah
stehenden] HeimatArtykuł poświęcony jest twórczości poety i wydawcy Paula Petrasa. Autor przyszedł na świat w 1860 roku w ówczesnym Grünberg in Schlesien (Zielona Góra) i jest przykładem pisarza tworzącego w dialekcie śląskim. Petras wpisuje się w poczet osobistości z dawnego Grünbergu i wymieniany jest dzisiaj jednym tchem obok takich nazwisk, jak Georg Beuchelt, Otto Julius Bierbaum oraz Wilhelm Levysohn. Autorka przedstawiła w tekście biografię pisarza, dokonała analizy wybranych utworów (opowiadania i wiersze) oraz sformułowała próbę odpowiedzi na pytanie o współczesną percepcję literackiego dorobku Petrasa w Zielonej Górze i w Niemczech. Warto w tym miejscu przytoczyć słowa historyka regionalisty, prof. Hieronima Szczegóły: „dla zielonogórzan i mieszkańców północnego Śląska jest ta twórczość elementem historii, tradycji i rzadko spotykanym przykładem umiłowania najbliższej ojczyzny”.This article is devoted to the work of the poet and publisher Paul Petras. The author was born in 1860 in then Grünberg in Schlesien (Zielona Góra) and is an example of a writer publishing in the Silesian dialect. Petras is one of the personalities of the former Grünberg and is mentioned today in one breath alongside such names as Georg Beuchelt, Otto Julius Bierbaum and Wilhelm Levysohn. The article presents Petra’s biography, analyses his selected works (stories and poems), and aims to investigate the contemporary perception of Petras’ literary output in Zielona Góra and Germany. It is worth quoting here the words of a regionalist historian, prof. Hieronim Szczegóła: “for the inhabitants of Zielona Góra and northern Silesia, this work is an element of history, tradition and a rare example of love for the closest homeland”
Silver Grid Finger Corrosion on Snail Track affected PV Modules – Investigation on Degradation Products and Mechanisms
No full textAbstractThe silver grid corrosion phenomenon of c-Si solar cells, often called “snail trails” or “snail tracks”, which occurs mainly shortly after installation of PV modules in the field, was first observed approximately one decade ago in the southern part of Europe. It was recognized quickly that these discolorations on the metal grid fingers are always accompanied by cell (micro) cracks.From the herein presented investigations, it can be shown that several different chemical mechanisms and material involvements can lead to the visual phenomenon of silver grid finger discoloration. It must therefore be clarified that the term “snail track” (or “snail trails”) only describes a failure class and not a single degradation mechanism.This work focuses on a bottom up approach, which includes the chemical analyses of the affected cell parts extracted from various industrial modules which have been installed in the field. In addition to the analytical investigations after field failure, the modules are exposed to artificial stresses to investigate the development, formation or further reaction of the snail track degradation products. Since the phenomenon is always accompanied by diffusion open areas in the module (cell gaps, cell cracks), the diffusion of reactant partners from the rear side of the module, e.g. atmospheric gases or additives from the back sheet material, has been the most suspected root cause from the beginning of the observation. The role of these reaction partners is therefore highlighted within the results. Four different snail track degradation products have been identified until now: Silver carbonate, silver sulfide, silver phosphate and silver acetate. Silver sulfide snail tracks were only found after damp-heat test (only artificially induced), all other types were found from field failed PV modules and respectively partially from stress tests.The different snail track types, materials and module components considered being involved and the formation mechanisms are presented in this work
AACR2 and catalogue production technology: The relevance of cataloguing principles to the online environment
No full textMore than thirty five years have passed since the Paris Conference and cataloguers have witnessed profound changes in many aspects of catalogue production technology and also in bibliographic control and access during this period of time. In comparison to the past, cataloguers are less involved in the design and production of catalogues and bibliographic databases particularly in terms of the interfaces, the types of indexes and the ways in which records and retrieval results are displayed. These changes and developments (see Appendix one) have presented cataloguers with some basic questions about the fundamental principles of record creation and catalogue construction.
Although present online catalogues are benefiting from more advanced hardware and software, there are still considerable, serious problems in searching, retrieval, and display of bibliographic information in present systems, which influence their functions and usefulness. This, as has been highlighted in the literature, may be because some of the present cataloguing principles and rules are inadequate, less relevant or irrelevant to the new electronic environment. A review of the literature of the last two decades indicates that, parallel to the increasing developments in online catalogues, the cataloguing community has been addressing the need for a re-thinking of cataloguing principles and rules in light of the new environment. It is often claimed that AACR2’s rules are based on concepts and principles from the pre-machine period and that they do not serve us well in giving guidance in the construction of electronic catalogues.
Given the influence of all the changes and developments in the world of catalogues and cataloguing, a fundamental re-examination of our cataloguing principles seems very necessary. In this paper some of the basic principles of AACR2 which have been highlighted in the literature as those most likely to be influenced by the new technology will be re-examined in the light of both the present and the potential characteristics and capabilities of the online environment. The aim is to examine the extent to which AACR2 matches or fails to match the capabilities of present systems and those of the near future, for searching, retrieval and display of bibliographic information. In other words, to address how catalogue form and production affects, or is in turn influenced by, the principles upon which AACR2 is based.
The approach used in this paper is to match individual capabilities of online catalogues with the basic principles of AACR2R. A major focus will be the basic concepts of the code’s principles, the logic of their application and the relationship of these principles to the logic of the online catalogue, as well as an examination of the types of principles and rules that are likely to change when moving from a manual catalogue to an online catalogue. In this regard, the needs and expectations of the different catalogue users are also taken into consideration
Health Hazard Evaluation Determination Report No. 77-51-502: Martin Marietta Aerospace: Orlando, Florida 32805
No full textA walk through survey and private interviews were conducted on April 25 and 26, 1977, to evaluate potential occupational exposure to toxic substances, ultraviolet light, and safety hazards in the Automatic Soldering and Conformal Coating Room and Printed Circuit Detail Area at the Orlando Division of Martin Marietta Aerospace (SIC-3761) in Orlando, Florida. The evaluation was requested by an authorized employee representative on behalf of the approximately 50 affected employees. Violations of OSHA safety standards were observed in the soldering and coating room, and included the improper storage, handling, disposal, and labeling of flammable and combustible materials, and insufficient ventilation rates for laboratory hoods or spray booths. Violations were in the electroplating shop included poor accessibility to the eye wash and emergency shower, smoking in the vapor degreaser area, and inadequate use of protective equipment. The author concludes that potential hazards exist due to these violations. The author recommends that exhaust ventilation systems be installed where indicated, that flux remover be stored in closed containers and used under well ventilated conditions, that skin contact with epoxy resins be prevented with clean protective clothing and good personal hygiene, and that exposure to ultraviolet light be controlled and minimized. [Description provided by NIOSH
OBSERVATION OF THE ELECTRONIC TRANSITION OF BUTYL PEROXY RADICALS USING CAVITY RINGDOWN SPECTROSCOPY.
No full textT. J. Wallington, P. Dagaut, and M. J. Kurylo, Chem. Rev. 92, 667(1992) E. P. Clifford, P. G. Wenthold, R. Gareyev, W. C. Lineberger, C. H. DePuy, V. M. Bierbaum, and G. B. Ellison, J. Chem. Phys. 109, 10293 (1998)Author Institution: Laser Spectroscopy Facility, Department of Chemistry, The Ohio State UniversityAn important reaction involving the low temperature oxidation of hydrocarbons concerns the production of alkyl peroxy radicals . These species of highly reactive molecules are present in atmospheric reactions, as well as internal combustion engines. Longer carbon chain alkyl peroxy radicals, i.e. butyl peroxy radical, are especially important in combustion processes because of their ability to rapidly isomerize thereby opening new branching and propagation channels in the chain reaction. Therefore, it is useful to develop a database of information concerning alkyl peroxy radicals with multiple carbon atoms. In the case of butyl peroxy radical, most have focused only on t-butyl peroxy radical, neglecting the other isomers. Cavity ringdown spectroscopy (CRDS) has been applied to study the near-IR electronic transition of the isomers of the butyl peroxy radical. The four isomers of the butyl peroxy radical are n-butyl, sec-butyl, isobutyl, and t-butyl peroxy radical. We report on the cavity ringdown spectra of the electronic transition of n-butyl, sec-butyl, isobutyl, and t-butyl peroxy radicals. The bands that have been observed are the origin and oxygen-oxygen stretch for each isomer. Also, transitions from several different conformers have been detected
Pinocchio: conducting a virtual symphony orchestra
No full textWe present a system that allows users of any skill to conduct a virtual orchestra. Tempo and volume of the orchestra's performance are influenced with a baton. Pinocchio works with several types of batons, differing in tracking method and in algorithms for gesture recognition. The virtual orchestra can be configured, allowing the muting, hiding and positioning of individual musicians or instrument groups in 3D space. The audio and video material is based on a professional recording session with the Bavarian symphony orchestra. Pinocchio’s long-term goal is the creation of a multi-modal, device independent framework for gesture-based applications which require motor skills or the control and operation of a complex set of sensors in intelligent house or car driver assistance systems. In this paper, we describe the current development status of the project, detail its usage and finally give an overview over our future project goals
