987 resultados para Black Movement, USA
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Increasing atmospheric carbon dioxide (CO2) from anthropogenic sources is acidifying marine environments resulting in potentially dramatic consequences for the physical, chemical and biological functioning of these ecosystems. If current trends continue, mean ocean pH is expected to decrease by ~0.2 units over the next ~50 years. Yet, there is also substantial temporal variability in pH and other carbon system parameters in the ocean resulting in regions that already experience change that exceeds long-term projected trends in pH. This points to short-term dynamics as an important layer of complexity on top of long-term trends. Thus, in order to predict future climate change impacts, there is a critical need to characterize the natural range and dynamics of the marine carbonate system and the mechanisms responsible for observed variability. Here, we present pH and dissolved inorganic carbon (DIC) at time intervals spanning 1 hour to >1 year from a dynamic, coastal, temperate marine system (Beaufort Inlet, Beaufort NC USA) to characterize the carbonate system at multiple time scales. Daily and seasonal variation of the carbonate system is largely driven by temperature, alkalinity and the balance between primary production and respiration, but high frequency change (hours to days) is further influenced by water mass movement (e.g. tides) and stochastic events (e.g. storms). Both annual (~0.3 units) and diurnal (~0.1 units) variability in coastal ocean acidity are similar in magnitude to 50 year projections of ocean acidity associated with increasing atmospheric CO2. The environmental variables driving these changes highlight the importance of characterizing the complete carbonate system rather than just pH. Short-term dynamics of ocean carbon parameters may already exert significant pressure on some coastal marine ecosystems with implications for ecology, biogeochemistry and evolution and this shorter term variability layers additive effects and complexity, including extreme values, on top of long-term trends in ocean acidification.
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Research on disadvantaged young fathers has been minimally addressed in the literature, particularly in the UK. In both countries teenage pregnancy rates are high and costly in terms of social policy and community provision. This paper explores 2 studies involving 24 young men with an average age of 17 on the transition to young fatherhood; one study was conducted in the UK with white young men and the other in the USA with black young men. The findings from both studies indicated common themes from their stories, particularly with regard to the high levels of disadvantage and social exclusion they had been exposed to in their demographic environments and the anti-social behaviour they described engaging in, prior to the birth of their child/ren. Specifically, a significant proportion of the young men described how they had been immersed in drug and gun crimes and how this shaped their lives and neighbourhoods. Becoming fathers is presented by both sets of young men as rescuing them from this criminal lifestyle.
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Romanticism and Blackwood's Magazine is inspired by the ongoing critical fascination with Blackwood's Edinburgh Magazine, and the burgeoning recognition of its centrality to the Romantic age. Though the magazine itself was published continuously for well over a century and a half, this volume concentrates specifically on those years when William Blackwood was at the helm, beginning with his founding of the magazine in 1817 and closing with his death in 1834. These were the years when, as Samuel Taylor Coleridge put it in 1832, Blackwood's reigned as 'an unprecedented Phenomenon in the world of letters.' The magazine placed itself at the centre of the emerging mass media, commented decisively on all the major political and cultural issues that shaped the Romantic movement, and published some of the leading writers of the day, including Coleridge, Thomas De Quincey, John Galt, Felicia Hemans, James Hogg, Walter Scott, and Mary Shelley.
'This much-needed volume reminds us not only why Blackwood's was the most influential periodical publication of the time, but also how its writers, writings, and critical agendas continue to shape so many of the scholarly concerns of Romantic studies in the twenty-first century.' - Charles Mahoney, Associate Professor, University of Connecticut, USA
List of Illustrations
Acknowledgements
Abbreviations
Notes on Contributors
'A character so various, and yet so indisputably its own': A Passage to Blackwood's Edinburgh Magazine; R.Morrison & D.S.Roberts
PART I: BLACKWOOD'S AND THE PERIODICAL PRESS
Beginning Blackwood's: The Right Mix of Dulce and Ùtile; P.Flynn
John Gibson Lockhart and Blackwood's: Shaping the Romantic Periodical Press; T.Richardson
From Gluttony to Justified Sinning: Confessional Writing in Blackwood's and the London Magazine; D.Higgins
Camaraderie and Conflict: De Quincey and Wilson on Enemy Lines; R.Morrison
Selling Blackwood's Magazine, 1817-1834; D.Finkelstein
PART II: BLACKWOOD'S CULTURE AND CRITICISM
Blackwood's 'Personalities'; T.Mole
Communal Reception, Mary Shelley, and the 'Blackwood's School' of Criticism; N.Mason
Blackwoodian Allusion and the Culture of Miscellaneity; D.Stewart
Blackwood's Edinburgh Magazine in the Scientific Culture of Early Nineteenth-Century Edinburgh; W.Christie
The Art and Science of Politics in Blackwood's Edinburgh Magazine, c. 1817-1841; D.Kelly
Prosing Poetry: Blackwood's and Generic Transposition, 1820-1840; J.Camlot
PART III: BLACKWOOD'S FICTIONS
Blackwood's and the Boundaries of the Short Story; T.Killick
The Edinburgh of Blackwood's Edinburgh Magazine and James Hogg's Fiction; G.Hughes
'The Taste for Violence in Blackwood's Magazine'; M.Schoenfield
PART IV: BLACKWOOD'S AT HOME
John Wilson and Regency Authorship; R.Cronin
John Wilson and Sport; J.Strachan
William Maginn and the Blackwood's 'Preface' of 1826; D.E.Latané, Jr.
All Work and All Play: Felicia Hemans's Edinburgh Noctes; N.Sweet
PART V: BLACKWOOD'S ABROAD
Imagining India in Early Blackwood's; D.S.Roberts
Tales of the Colonies: Blackwood's, Provincialism, and British Interests Abroad; A.Jarrells
Selected Bibliography
Index
ROBERT MORRISON is Queen's National Scholar at Queen's University, Kingston, Ontario, Canada. His book, The English Opium-Eater: A Biography of Thomas De Quincey was a finalist for the James Tait Black Prize. He has edited writings by Jane Austen, Leigh Hunt, Thomas De Quincey, and John Polidori.
DANIEL SANJIV ROBERTS is Reader in English at Queen's University Belfast, UK. His publications include a monograph, Revisionary Gleam: De Quincey, Coleridge, and the High Romantic Argument (2000), and major critical editions of Thomas De Quincey's Autobiographic Sketches and Robert Southey's The Curse of Kehama; the latter was cited as a Distinguished Scholarly Edition by the MLA. He is currently working on an edition of Charles Johnstone's novel The History of Arsaces, Prince of Betlis for the Early Irish Fiction series.
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In North America, terrestrial records of biodiversity and climate change that span Marine Oxygen Isotope Stage (MIS) 5 are rare. Where found, they provide insight into how the coupling of the ocean-atmosphere system is manifested in biotic and environmental records and how the biosphere responds to climate change. In 2010-2011, construction at Ziegler Reservoir near Snowmass Village, Colorado (USA) revealed a nearly continuous, lacustrine/wetland sedimentary sequence that preserved evidence of past plant communities between similar to 140 and 55 lea, including all of MIS 5. At an elevation of 2705 m, the Ziegler Reservoir fossil site also contained thousands of well-preserved bones of late Pleistocene megafauna, including mastodons, mammoths, ground sloths, horses, camels, deer, bison, black bear, coyotes, and bighorn sheep. In addition, the site contained more than 26,000 bones from at least 30 species of small animals including salamanders, otters, muskrats, minks, rabbits, beavers, frogs, lizards, snakes, fish, and birds. The combination of macro- and micro-vertebrates, invertebrates, terrestrial and aquatic plant macrofossils, a detailed pollen record, and a robust, directly dated stratigraphic framework shows that high-elevation ecosystems in the Rocky Mountains of Colorado are climatically sensitive and varied dramatically throughout MIS 5
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Recent analyses of sediment samples from "black mat" sites in South America and Europe support previous interpretations of an ET impact event that reversed the Late Glacial demise of LGM ice during the Bølling Allerød warming, resulting in a resurgence of ice termed the Younger Dryas (YD) cooling episode. The breakup or impact of a cosmic vehicle at the YD boundary coincides with the onset of a 1-kyr long interval of glacial resurgence, one of the most studied events of the Late Pleistocene. New analytical databases reveal a corpus of data indicating that the cosmic impact was a real event, most possibly a cosmic airburst from Earth's encounter with the Taurid Complex comet or unknown asteroid, an event that led to cosmic fragments exploding interhemispherically over widely dispersed areas, including the northern Andes of Venezuela and the Alps on the Italian/French frontier. While the databases in the two areas differ somewhat, the overall interpretation is that microtextural evidence in weathering rinds and in sands of associated paleosols and glaciofluvial deposits carry undeniable attributes of melted glassy carbon and Fe spherules, planar deformation features, shock-melted and contorted quartz, occasional transition and platinum metals, and brecciated and impacted minerals of diverse lithologies. In concert with other black mat localities in the Western USA, the Netherlands, coastal France, Syria, Central Asia, Peru, Argentina and Mexico, it appears that a widespread cosmic impact by an asteroid or comet is responsible for deposition of the black mat at the onset of the YD glacial event. Whether or not the impact caused a 1-kyr interval of glacial climate depends upon whether or not the Earth had multiple centuries-long episodic encounters with the Taurid Complex or asteroid remnants; impact-related changes in microclimates sustained climatic forcing sufficient to maintain positive mass balances in the reformed ice; and/or inertia in the Atlantic thermohaline circulation system persisted for 1kyr.
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In this article, I consider the importance of epistolary narratives in the interface of autobiography and politics. In doing this, I read the letters of Fannia Mary Cohn, a Jewish immigrant worker, trade union activist and ardent labour organizer in the garment industry in the USA in the first half of the twentieth century. Cohn was a prolific writer and political activist and left a rich body of labour literature, but never wrote an autobiography or a diary or journal. It is in her letters to her comrades and friends in the labour movement that short autobiographical stories erupt and it is on such stories across her correspondence that this article focuses. The analysis is informed by Hannah Arendt’s theorization of narratives in their interrelation with politics and history. Drawing on a rich body of feminist literature around the relational self, what I argue is that an Arendtian reading of epistolary narratives is a useful analytical tool in understanding gendered politics in the diverse histories of the labour movement.
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En 1936, l’American Music League publiait le recueil de chansons afro-américaines Negro Songs of Protest collectées par le folkloriste communiste Lawrence Gellert. Puis en 1938 et 1939, grâce au financement du mouvement communiste américain, le producteur John Hammond présentait deux concerts intitulés From Spirituals to Swing au Carnegie Hall de New York. En plus de rendre hommage à l’histoire de la musique noire américaine, ces deux concerts défiaient la ségrégation raciale, permettant au Noirs et aux Blancs d’être rassemblés sur une même scène et de s’asseoir ensemble dans l’assistance. Au même moment, la chanteuse jazz Billie Holiday faisait fureur au Café Society, premier club « intégré » de New York et lieu de rassemblement de la gauche radicale, en interprétant soir après soir la chanson ‘’Strange Fruit’’ qui dénonçait l’horreur du lynchage toujours en vigueur dans le Sud des États-Unis. C’était l’époque du Front Populaire, la plus importante période d’influence du mouvement communiste aux États-Unis et, de surcroît, le moment de l’histoire américaine durant lequel la gauche organisée détenait un pouvoir sans précédent sur la culture de masse. Partant d’une discussion sur le potentiel révolutionnaire de la musique noire américaine et cherchant à comprendre le positionnement des mouvements sociaux vis-à-vis la culture, ce mémoire met en lumière le point de vue des communistes américains blancs face à l’émergence et à la popularité grandissante du blues et du jazz noirs aux États-Unis. En fonction des trois principales phases politiques du Parti Communiste américain (CPUSA) – la phase du colorblind class (1919-1928); la phase du nationalisme noir (1928-1935); le Front Populaire (1935-1940) – ce mémoire retrace les changements d’attitude de la vieille gauche envers la culture populaire et suggère que le mouvement communiste américain a tenté d’utiliser le blues et le jazz à des fins d’agit-prop.
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The importance of the interplay between degassing and crystallization before and after the eruption of Mount St. Helens (Washington, USA) in 1980 is well established. Here, we show that degassing occurred over a period of decades to days before eruptions and that the manner of degassing, as deduced from geochemicai signatures within the magma, was characteristic of the eruptive style. Trace element (lithium) and short-lived radioactive isotope (lead-210 and radium-226) data show that ascending magma stalled within the conduit, leading to the accumulation of volatiles and the formation of lead-210 excesses, which signals the presence of degassing magma at depth.
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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
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Spodoptera frugiperda J.E. Smith (fall armyworm) is considered one of the most destructive pests of corn throughout the Americas. Although this pest has been extensively studied, little is known about its larval movement and feeding behavior on reproductive compared to vegetative corn stages. Thus, we conducted studies with two corn stages (R1 and R3) and four corn plant zones (tassel, above ear, ear zone, and below ear) in the field at Concord, NE (USA), and in the field and greenhouse at Botucatu, SP (Brazil), to investigate on-plant larval movement. The effects of different corn tissues (opened tassel, closed tassel, silk, kernel, and leaf), two feeding sequence scenarios (closed tassel-leaf-silk-kernel and leaf-silk-kernel), and artificial diet (positive control) on larval survival and development were also evaluated in the laboratory. Ear zone has a strong effect on feeding choice and survival of fall armyworm larvae regardless of reproductive corn stage. Feeding site choice is made by first-instar. Corn leaves of reproductive plants were not suitable for early instar development, but silk and kernel tissues had a positive effect on survival and development of fall armyworm larvae on reproductive stage corn.
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Large conurbations are a significant source of the anthropogenic pollution and demographic differences between cities that result in a different pollution burden. The metropolitan area of Sao Paulo (MASP, population 20 million) accounts for one fifth of the Brazilian vehicular fleet. A feature of MASP is the amount of ethanol used by the vehicular fleet, known to exacerbate air quality. The study describes the diurnal behaviour of the submicron aerosol and relies on total particle number concentration, particle number size distribution, light scattering and light absorption measurements. Modelled planetary boundary layer (PBL) depth and air mass movement data were used to aid the interpretation. During morning rush-hour, stagnant air and a shallow PBL height favour the accumulation of aerosol pollution. During clear-sky conditions, there was a wind shift towards the edge of the city indicating a heat island effect with implications on particulate pollution levels at the site. The median total particle number concentration for the submicron aerosol typically varied in the range 1.6 x 10(4)-3.2 x 10(4) cm(-3) frequently exceeding 4 x 10(4) cm-3 during the day. During weekdays, nucleation-mode particles are responsible for most of the particles by numbers. The highest concentrations of total particle number concentrations and black carbon (BC) were observed on Fridays. Median diurnal values for light absorption and light scattering (at 637 nm wavelength) varied in the range 12-33 Mm(-1) and 21-64 Mm(-1), respectively. The former one is equal to 1.8-5.0 mu g m(-3) of BC. The growth of the PBL, from the morning rush-hour until noon, is consistent with the diurnal cycle of BC mass concentrations. Weekday hourly median single-scattering albedo (omega(0)) varied in the range 0.59-0.76. Overall, this suggests a top of atmosphere (TOA) warming effect. However, considering the low surface reflectance of urban areas, for the given range of omega(0), the TOA radiative forcing can be either positive or negative for the sources within the MASP. On the average, weekend omega(0) values were 0.074 higher than during weekdays. During 11% of the days, new particle formation (NPF) events occurred. The analysed events growth rates ranged between 9 and 25 nm h(-1). Sulphuric acid proxy concentrations calculated for the site were less than 5% of the concentration needed to explain the observed growth. Thus, other vapours are likely contributors to the observed growth.
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Negli anni Ottanta si assiste tanto nel vecchio quanto nel nuovo continente alla rinascita del movimento antinucleare. Mentre in Europa l’origine di questa ondata di proteste antinucleari è collegata alla “doppia decisione” NATO del 1979, negli Stati Uniti la genesi si colloca nel contesto dalla mobilitazione dei gruppi ambientalisti in seguito all’incidente alla centrale nucleare di Three Mile Island. Dopo l’elezione di Ronald Reagan, alle proteste contro le applicazioni pacifiche dell’atomo si affiancarono quelle contro la politica nucleare del Paese. La retorica di Reagan, il massiccio piano di riarmo, unitamente al rinnovato deteriorarsi delle relazioni tra USA e URSS contribuirono a diffondere nell’opinione pubblica la sensazione che l’amministrazione Reagan, almeno da un punto di vista teorico, non avesse escluso dalle sue opzioni il ricorso alle armi nucleari nel caso di un confronto con l’URSS. I timori legati a questa percezione produssero una nuova ondata di proteste che assunsero dimensioni di massa grazie alla mobilitazione provocata dalla Nuclear Weapons Freeze Campaign (NWFC). Il target della NWFC era l’ampio programma di riarmo nucleare sostenuto da Reagan, che secondo gli attivisti nucleari, in un quadro di crescenti tensioni internazionali, avrebbe fatto aumentare le possibilità di uno scontro atomico. Per evitare lo scenario dell’olocausto nucleare, la NWFC proponeva «un congelamento bilaterale e verificabile del collaudo, dell’installazione e della produzione di armi nucleari». L’idea del nuclear freeze, che era concepito come un passo per fermare la spirale del riarmo e tentare successivamente di negoziare riduzioni negli arsenali delle due superpotenze, riscosse un tale consenso nell’opinione pubblica americana da indurre l’amministrazione Reagan a formulare una risposta specifica. Durante la primavera del 1982 fu, infatti, creato un gruppo interdipartimentale ad hoc, l’Arms Control Information Policy Group, con il compito di arginare l’influenza della NWFC sull’opinione pubblica americana e formulare una risposta coerente alle critiche del movimento antinucleare.