1,446 research outputs found
Predictable decadal forcing of the North Atlantic jet speed by sub-polar North Atlantic sea surface temperatures
No full textIt has been demonstrated that decadal variations in the North Atlantic Oscillation (NAO) can be predicted by current forecast models. While Atlantic Multidecadal Variability (AMV) in sea surface temperatures (SSTs) has been hypothesised as the source of this skill, the validity of this hypothesis and the pathways involved remain unclear. We show, using reanalysis and data from two forecast models, that the decadal predictability of the NAO can be entirely accounted for by the predictability of decadal variations in the speed of the North Atlantic eddy-driven jet, with no predictability of decadal variations in the jet latitude. The sub-polar North Atlantic (SPNA) is identified as the only obvious common source of an SST-based signal across the models and reanalysis, and the predictability of the jet speed is shown to be consistent with a forcing from the SPNA visible already within a single season. The pathway is argued to be tropospheric in nature, with the SPNA-associated heating extending up to the mid-troposphere, which alters the meridional temperature gradient around the climatological jet core. The relative roles of anthropogenic aerosol emissions and the Atlantic Meridional Overturning Circulation (AMOC) at generating predictable SPNA variability are also discussed. The analysis is extensively supported by the novel use of a set of seasonal hindcasts spanning the 20th century and forced with prescribed SSTs.</p
Brief Investigatory Detentions: A Critique of R. v. Simpson
No full textIn this article, the author examines the brief investigative detention power created by the Ontario Court of Appeal in R. v. Simpson and challenges both the Court\u27s reasoning and the way in which the decision has been followed in other Canadian jurisdictions. The common law power to detain an individual, based upon prominent U.S. and British case law, is inconsistent with the previous Supreme Court jurisprudence on police powers. The author demonstrates this by analyzing several cases involving police powers and joins the list of commentators who have urged the country\u27s highest court to re-examine the Simpson doctrine. The author also argues that there has been a tendency for U.S. courts to grant increased discretion to the police even when such powers are unwarranted. There is a real possibility of a similar accretion of police powers in Canada. Moreover, the American experience also indicates that members of minority groups are frequently subjected to the rigours of brief investigative detention, often only because of their ethnic identity. Recent studies show that the same trend exists in Canada, serving to challenge democratic and egalitarian values that the Charter is designed to protect. The solution, according to the author, lies not with the Courts, but with Parliament taking the opportunity to define the extent and limits of brief investigative detentions
MJO-QBO Model Inter-comparison Data
No full textData in support of the paper "The Lack of a QBO-MJO Connection in Climate Models with a Nudged Stratosphere" by Zane K. Martin, Isla R. Simpson, Pu Lin, Clara Orbe, Qi Tang, Julie M. Caron, Chih-Chieh Chen, Hyemi Kim, L. Ruby Leung, Jadwiga H. Richter, and Shaocheng Xie, currently in preparation for submission.
Data is organized by model, then ensemble member, then the temporal data resolution.
Daily data are daily model OLR (olr/) and precipitation (precip/) in lat/lon/time format, over at least the tropical region spanning all longitudes and 20N to 20S. Daily data also include the Real-time Multivariate MJO index (RMM; RMM_index/) value from each model and ensemble members. OLR and precip files are provided on a 2.5 x 2.5 degree similar grid, rather than the models' native grid.
Monthly data are temperature (temp/, at all vertical levels and all longitudes, from at least 20N to 20S, and the 100 hPa temperature file, as described more in the paper) zonal wind (at all vertical levels, and the 50 hPa wind file; wind/), and TEM vertical velocity (wtem/)
Evaluación comparativa de la diversidad de flora silvestre entre la Isla Taquile y el cerro Chiani de la península de Chucuito en época lluviosa, Puno
No full textRealicé la investigación en la isla Taquile y el cerro Chiani de la península de Chucuito, entre los meses de noviembre 2010 a febrero 2011. Las hipótesis fueron 1) la riqueza específica y abundancia proporcional de especies de flora silvestre de la isla de Taquile será diferente, en relación al cerro Chiani, 2) el incremento de la altitud y la disminución de la temperatura, influirá en la disminución de la riqueza específica y abundancia proporcional de especies, en la isla de Taquile y cerro Chiani y 3) a mayor precipitación pluvial (mm), la abundancia proporcional de especies de flora silvestre variará en la isla Taquile y el cerro Chiani. Los objetivos fueron: 1) Comparación de la riqueza específica y abundancia proporcional de especies de flora silvestre, entre la isla Taquile y el cerro Chiani, 2) Evaluación de la riqueza específica y abundancia proporcional de especies de flora silvestre, en la isla Taquile y el cerro Chiani en relación a la altitud y temperatura ambiental y 3) Evaluación de la abundancia proporcional de especies de flora silvestre, en la isla Taquile y el cerro Chiani en relación a la precipitación pluvial. La metodología fue: Hice evaluaciones quincenales en ambas zonas de estudio, aplicando el método acumulativo y zigzag. Los índices que apliqué fueron el de Simpson y Shannon, calculados con el software Krebs. Apliqué pruebas no paramétricas de Mann Whitney y Kruskal Wallis y pruebas de correlación simple, utilizando el software INFOSTAT. Los resultados fueron: En la isla Taquile registré 94 especies, pertenecientes a 35 familias y en el cerro Chiani registré 93 especies pertenecientes a 38 familias. No encontré diferencia de la riqueza específica, índice de Simpson entre las dos zonas en estudio (P = 0,3417; P = 0,1120) respectivamente. Sin embargo, con el índice de Shannon hubo diferencia entre las dos zonas (P <0,0001). Analizando la diversidad durante los meses de evaluación, encontré diferencia estadística de la diversidad de especies según los índices de Simpson y Shannon para ambas zonas (P< 0,0001 para ambos casos). En la isla Taquile no encontré diferencia de la riqueza de especies a las diferentes altitudes evaluadas (P = 0,1504), pero si encontré diferencia de acuerdo con el índice de Simpson y Shannon (P = 0,0042 y P = 0,0305 respectivamente). El coeficiente de correlación entre el índice de Simpson y de Shannon con la temperatura fue 0,04 y 0,11 respectivamente. En el cerro Chiani si hubo diferencia de la riqueza de especies a las diferentes altitudes evaluadas en el cerro Chiani (P = 0,0661), pero no encontré diferencia de la diversidad de especies según el índice de Simpson y Shannon (P = 0,4845 y P = 0,4406 respectivamente). Los índices de correlación entre el índice de Simpson y Shannon con la temperatura fueron 0,24 y 0,33 respectivamente. En la isla de Taquile, el coeficiente de correlación entre la diversidad de especies según el índice de dominancia de Simpson y Shannon con la precipitación pluvial fue r = 0,47 y r = 0,56 respectivamente. En el cerro Chiani el coeficiente de correlación encontrada entre el índice de Simpson y Shannon con la precipitación fue r = 0,53 y r = 0,57 respectivamenteTesi
Kanter Revisited: Gender, Power and (In)visibility
No full textThis paper revisits Kanter's (1977) seminal work Men and Women of the Corporation, rereading her account of numerical advantage and disadvantage through a poststructuralist lens which exposes hidden dimensions of gendered power. This lens is captured in the ‘(In)visibility Vortex’ (Lewis and Simpson, 2010) which highlights struggles and tensions around the norm through processes of preservation and concealment within the norm as well as dynamics of revealing, exposure and disappearance as features of the margins. The study draws on developments in feminist theorizing, specially around visibility, invisibility and power, to facilitate this rereading. In so doing, the author demonstrate that while Kanter retreated from explanations based on the gendering of organizations or from recognition of gendered power, these dynamics can be identified in her text. The authors suggest that rereading classic texts can surface dimensions of organizations that have contemporary significance and can inform future research
Dien Bien Phu the epic battle America forgot
No full textThe fighting began in November 1953, when French paratroopers seized a small airstrip in northwestern Vietnam. It ended in May 1954 with tens of thousands of Vietminh troops overrunning the besieged garrison. A third of the 15,000 defenders died in combat; fewer than a hundred escaped into the jungle. Thousands more died in captivity. Dien Bien Phu is recognized as one of history's great battles and as a turning point for American policy: the French defeat led to the fateful U.S. commitment to Vietnam. Ironically, the U.S. military repeated many of the French mistakes. American Howard R. Simpson was there as a combat reporter and photographer. His account is a personal one - that of a man who shared meals and wine and danger with the doomed soldiers. A much-published defense expert, Simpson is uniquely qualified to tell the dramatic story of this famous last stand. Aided by interviews with dozens of survivors from both sides - including victorious Gen. Vo Nguyen Giap - his book will rank with Bernard Fall's bestselling Hell in a Very Small Place as a classic work on an event as significant for the United States as it was for France. Dien Bien Phu is being published on the fortieth anniversary of the French defeat and contains rare combat photos by the author and the French Foreign Legion
Homer Simpson Ponders Politics: Popular Culture as Political Theory
No full textIt is often said that the poet Homer “educated” ancient Greece. Joseph J. Foy and Timothy M. Dale have assembled a team of notable scholars who argue, quite persuasively, that Homer Simpson and his ilk are educating America and offering insights into the social order and the human condition.
Following Homer Simpson Goes to Washington (winner of the John G. Cawelti Award for Best Textbook or Primer on American and Popular Culture) and Homer Simpson Marches on Washington, this exceptional volume reveals how books like J. R. R. Tolkien’s The Hobbit and J. K. Rowling’s Harry Potter, movies like Avatar and Star Wars, and television shows like The Office and Firefly define Americans’ perceptions of society. The authors expand the discussion to explore the ways in which political theories play out in popular culture.
Homer Simpson Ponders Politics includes a foreword by fantasy author Margaret Weis (coauthor/creator of the Dragonlance novels and game world) and is divided according to eras and themes in political thought: The first section explores civic virtue, applying the work of Plato and Aristotle to modern media. Part 2 draws on the philosophy of Hobbes, Locke, Rousseau, and Smith as a framework for understanding the role of the state. Part 3 explores the work of theorists such as Kant and Marx, and the final section investigates the ways in which movies and newer forms of electronic media either support or challenge the underlying assumptions of the democratic order. The result is an engaging read for undergraduate students as well as anyone interested in popular culture.
Joseph J. Foy, associate campus dean and associate professor of political science at the University of Wisconsin–Waukesha, is the editor of Homer Simpson Goes to Washington: American Politics through Popular Culture and coeditor of Homer Simpson Marches on Washington: Dissent through American Popular Culture.
Timothy M. Dale, assistant professor of political science at the University of Wisconsin–La Crosse, is coeditor of Homer Simpson Marches on Washington: Dissent through American Popular Culture.
“Today, film, fiction, and television reflect our notions of civic virtue, morality, and the human condition—or at least help us to struggle with understanding and defining these. The ubiquitous nature of popular culture means that it will have an effect upon us, whether one likes that or not. The authors argue that, given this fact, even those who doubt the ‘seriousness’ of popular culture would do well to pay attention to it.”—Margaret Ferguson, Assistant Vice President for Statewide Academic Relations at Indiana University
Since ancient times myths and stories have been used to convey our deepest thoughts about how to live together in community. With this book we now have a fun and engaging way to learn and think about political theory through the myths and stories of our time, popular culture. -- William Irwin, author of Black Sabbath and Philosophy: Mastering Reality
Foy and Dale have done it again, this time with political theory! Political theory is one of the most difficult subjects that political science undergraduates encounter and Homer Simpson Ponders Politics opens up an avenue for students to engage many of the broad theories through some of the cultural artifacts with which they are most familiar: popular culture. These important theories bubble up through all areas of popular culture from Machiavelli and The Godfather to Plato and Star Wars— there is much to learn from this compendium. This is a useful book for students of political theory of any age or training and for those who are intrigued by the many political concepts popular culture teaches us. --Lilly J. Goren, coeditor of Women and the White House: Gender, Popular Culture, and Presidential Politics
Most essays in this collection employ their philosophical guides in ways that can...disabuse undergraduates of the notion that political theory can better address the sterile and obsolete concerns of forgotten eras than fundamental questions about contemporary political life. -- Choicehttps://uknowledge.uky.edu/upk_american_popular_culture/1013/thumbnail.jp
Pembinaan Guru Sekolah Minggu Untuk Mengajarkan Konsep Keselamatan Pada Anak
No full textThis article discusses the formation of Sunday school teachers to teach children safety. The author uses a qualitative approach to analyze teacher needs, then the authors construct a pattern of coaching Sunday school teachers by elaborating sources of literature in accordance with the needs of teachers obtained from the needs analysis. The results of the needs analysis show there are three main needs needed by the teacher, namely aspects of knowledge about sin and salvation, aspects of personality where there are teachers who are still unsure of safety, and aspects of skills related to the ability to teach safety. The proposed pattern of coaching is to provide teaching about sin and salvation, the use of media for evangelism, mentoring or teacher supervision and evaluation.Artikel ini membahas tentang pembinaan guru sekolah minggu untuk mengajarkan keselamatan pada anak. Penulis menggunakan pendekatan kualitatif untuk menganalisis kebutuhan guru, kemudian penulis melakukan konstruksi pola pembinaan guru sekolah minggu dengan melakukan elaborasi sumber literatur sesuai dengan kebutuhan guru yang diperoleh dari hasil analisis kebutuhan. Hasil analisis kebutuhan menunjukkan ada tiga kebutuhan utama yang diperlukan guru yaitu aspek pengetahuan tentang dosa dan keselamatan, aspek kepribadian di mana ada guru yang masih ragu dengan keselamatan, dan aspek keterampilan berkaitan dengan kemampuan mengajarkan keselamatan. Pola pembinaan yang diusulkan adalah dengan memberikan pengajaran tentang dosa dan keselamatan, pemanfaatan media penginjilan, pendampingan atau supervisi guru dan evaluasi
Western boundary currents and climate change
No full textA recent paper in Journal of Geophysical Research-Oceans connects recent changes in atmospheric circulation to poleward movement and intensification of western boundary currents. Causes and characteristics of past and future trends in surface wind stress and western boundary currents are discussed here
A minimal model to diagnose the contribution of the stratosphere to tropospheric forecast skill
No full textFunding: Simon H. Lee is supported by NERC via the SCENARIO Doctoral Training Partnership (NE/L002566/1). Isla R Simpson was supported by the National Center for Atmospheric Research, which is a major facility sponsored by the National Science Foundation under the Cooperative Agreement 1852977.Many recent studies have confirmed that variability in the stratosphere is a significant source of surface sub-seasonal prediction skill during Northern Hemisphere winter. It may be beneficial, therefore, to think about times in which there might be windows-of-opportunity for skillful sub-seasonal predictions based on the initial or predicted state of the stratosphere. In this study, we propose a simple, minimal model that can be used to understand the impact of the stratosphere on tropospheric predictability. Our model purposefully excludes state dependent predictability in either the stratosphere or troposphere or in the coupling between the two. Model parameters are set up to broadly represent current sub-seasonal prediction systems by comparison with four dynamical models from the Sub-Seasonal to Seasonal Prediction Project database. The model can reproduce the increases in correlation skill in sub-sets of forecasts for weak and strong lower stratospheric polar vortex states over neutral states despite the lack of dependence of coupling or predictability on the stratospheric state. We demonstrate why different forecast skill diagnostics can give a very different impression of the relative skill in the three sub-sets. Forecasts with large stratospheric signals and low amounts of noise are demonstrated to also be windows-of-opportunity for skillful tropospheric forecasts, but we show that these windows can be obscured by the presence of unrelated tropospheric signals.Peer reviewe
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