4,915 research outputs found

    Cromatografía sobre papel de cobalto, hierro y níquel

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    Introducción: Considera los distintos métodos seguidos en el análisisquímico y en particular la cromatografía, resaltando lasventajas que presenta. Definición: Se dá una definición de la cromatografía y de los principalestérminos que se usan corrientemente para designar los diferentesconceptos de la misma. Historia: Se hace una breve reseña de los principales trabajos publicados en el tema. Clasificaciones: Se da una clasificación de la cromatografía basadaen el carácter físico-químico del fenómeno. También se mencionauna de solventes y otra de soportes (adsorbentes). Por último se hace una clasificación de solutos. Técnicas: Se resumen las principales técnicas usadas por los distintosautores en la cromatografía sobre papel. Teoría: Se menciona las principales teorías y los resultados a quese llegan con las mismas cuando se aplica al caso del papel. Separación cromatográfica del Fe+++ Co++ y Ni++: Se resumen losantecedentes bibliográficos encontrados, en base a los cuales se eligióel solvente de acetona - clorhídrico (9 + l V/V). Se discutebrevemente las ventas y desventajas del mismo. Se describen acontinuación la técnica y los aparatos empleados. Se ensayaron 25cationes de los cuales sólo interfieren el Sn++ y el Cu++. Parte cuantitativa: Se da un resumen de antecedentes en cuánto atécnica y a aparatos que se han usado. Se discuten los solventespropuestos y se ensayan varios otros de los que se eligió el quedaba la mejor separación y que tenía la siguiente composición: 79 % de acetona, 20 % de metanol y l % de ClH. Con este solventese ensaya el límite de separación. Se da cuenta a continuación de las experiencias de determinacióncuantitativa de Fe+++, Co++ y Ni++ por comparación de manchas, pormedición del ancho de las mismas, y por colorimetría. Se proponeun método exacto para la colorimetría del hierro. Se estudia la medición de la solución y se resuelve hacerlo porpesada de la gota sobre la banda de papel. Se ensaya la cromatografía cuantitativa de los tres cationes por elución y por destrucción de materia orgánica. Se obtienen buenos resultados para el Co++ y Ni++ por este último método. Discusión teórica: Se hacen experiencias con solventes acetona aguay acetona metanol de composición variable de 0 a 100 de cadauno de los componentes. Y en base a estos resultados y a otros obtenidosde la bibliografía se discute la teoría del proceso. Tablas de Rf: Se trató de compendiar todos los antecedentes bibliográficosen una sola tabla.Fil: Blum, Lesser. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina

    "Hamlet" After Q1 : An Uncanny History of the Shakespearean Text /

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    In 1823, Sir Henry Bunbury discovered a badly bound volume of twelve Shakespeare plays in a closet of his manor house. Nearly all of the plays were first editions, but one stood out as extraordinary: a previously unknown text of Hamlet that predated all other versions. Suddenly, the world had to grapple with a radically new—or rather, old—Hamlet in which the characters, plot, and poetry of Shakespeare's most famous play were profoundly and strangely transformed. Q1, as the text is known, has been declared a rough draft, a shorthand piracy, a memorial reconstruction, and a pre-Shakespearean "ur-Hamlet," among other things. Flickering between two historical moments—its publication in Shakespeare's early seventeenth century and its rediscovery in Bunbury's early nineteenth—Q1 is both the first and last Hamlet. Because this text became widely known only after the familiar version of the play had reached the pinnacle of English literature, its reception has entirely depended on this uncanny temporal oscillation; so too has its ongoing influence on twentieth- and twenty-first-century ideas of the play. Zachary Lesser examines how the improbable discovery of Q1 has forced readers to reconsider accepted truths about Shakespeare as an author and about the nature of Shakespeare's texts. In telling the story of this mysterious quarto and tracing the debates in newspapers, London theaters, and scholarly journals that followed its discovery, Lesser offers brilliant new insights on what we think we mean by Hamlet.In 1823, Sir Henry Bunbury discovered a badly bound volume of twelve Shakespeare plays in a closet of his manor house. Nearly all of the plays were first editions, but one stood out as extraordinary: a previously unknown text of Hamlet that predated all other versions. Suddenly, the world had to grapple with a radically new—or rather, old—Hamlet in which the characters, plot, and poetry of Shakespeare's most famous play were profoundly and strangely transformed. Q1, as the text is known, has been declared a rough draft, a shorthand piracy, a memorial reconstruction, and a pre-Shakespearean "ur-Hamlet," among other things. Flickering between two historical moments—its publication in Shakespeare's early seventeenth century and its rediscovery in Bunbury's early nineteenth—Q1 is both the first and last Hamlet. Because this text became widely known only after the familiar version of the play had reached the pinnacle of English literature, its reception has entirely depended on this uncanny temporal oscillation; so too has its ongoing influence on twentieth- and twenty-first-century ideas of the play. Zachary Lesser examines how the improbable discovery of Q1 has forced readers to reconsider accepted truths about Shakespeare as an author and about the nature of Shakespeare's texts. In telling the story of this mysterious quarto and tracing the debates in newspapers, London theaters, and scholarly journals that followed its discovery, Lesser offers brilliant new insights on what we think we mean by Hamlet.Electronic reproduction.Mode of access: Internet via World Wide Web.Zachary Lesser, University of Pennsylvania, Philadelphia, USA.Description based on online resource; title from PDF title page (publisher’s Web site, viewed October 05 2015

    Renaissance drama and the politics of publication : readings in the English book trade /

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    Shifting our critical focus from author to publisher and from first performance to first edition, Zachary Lesser offers a new vantage point on the drama of Shakespeare, Marlowe, Webster, and their contemporaries. Locating a play within its publisher's output allows us to see how the publisher read it and speculated that customers would read it. Lesser's groundbreaking study reveals the politics of these publications -- for early moedrn readers and for us.Includes bibliographical references and index.Shifting our critical focus from author to publisher and from first performance to first edition, Zachary Lesser offers a new vantage point on the drama of Shakespeare, Marlowe, Webster, and their contemporaries. Locating a play within its publisher's output allows us to see how the publisher read it and speculated that customers would read it. Lesser's groundbreaking study reveals the politics of these publications -- for early moedrn readers and for us

    Administrative-legal responsibility for lesser offences

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    Autor se v této práci zabývá tím, zda změna zákonné úpravy, obsahující hrozbu vysokými sankcemi a zavedení systému bodového hodnocení, má vliv na dodržování pravidel silničního provozu. K tomu se v teoretické části, prostřednictvím rozboru obecné části zákona č. 200/1990 Sb. o přestupcích, zabývá základními pojmy, spojenými s odpovědností za přestupek, jakož i právními následky přestupku. Rozborem skutkové podstaty přestupku podle ust. § 22 zákona č. 200/1990 Sb. o přestupcích objasňuje jednání, která jsou označována jako přestupky proti bezpečnosti a plynulosti provozu na pozemních komunikacích, zabývá se snahou řidičů, vyhnout se postihu za přestupek a objasňuje základní principy a funkci systému bodového hodnocení. V poslední části práce zjišťuje, jaký přínos má zákon č. 411/2005 Sb. na území okresu Přerov a ze zjištěných poznání vyvozuje závěry.In this work, the author considers the question whether a change of law which includes the threat of high fines and establishes a so-called "point system'q influences compliance to legal traffic principles. In the theoretical part of this work, the author deals with the basic terminology connected with the responsibility of an individual after commiting a lesser offence and the legal consequences of it. The author uses a basic part of the 1990 Parliament Act No. 200: "Lesser Offences'q as a guide. He analyses a specific lesser offence as described in Article 22 of the above Parliament Act and illustrates all possible behaviour which would be classified as a lesser offence against traffic safety and fluidity. He describes various attempts of some drivers to avoid punishment after commiting a lesser offence and he explains the basic principles and the function of the so-called "point system'q. In the final part of this work, the author studies and analyses various effects of the 2005 Parliament Act No. 411 within the Přerov district.Ústav veřejné správy a regionálního rozvojeobhájen

    Renaissance drama and the politics of publication readings in the English book trade

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    "Shifting our focus from author to publisher and from first performance to first edition, Zachary Lesser offers a new vantage point on the drama of Shakespeare, Marlowe, Webster, and their contemporaries. Renaissance Drama and the Politics of Publication re-imagines the reception and meaning of plays by reading them through the eyes of their earliest publishers."--BOOK JACKET
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