WorldWideScience

Sample records for america comparative theories

  1. Democratic theory and comparative politics

    OpenAIRE

    O'Donnell, Guillermo

    1999-01-01

    "The present text is, basically, a revision of democratic theory from the perspective of its inadequacies for including into its scope many of the recently democratized countries, as well as some older democracies located outside of the Northwestern quadrant of the world. After warning that it is a first step in a larger and more ambitious endeavor, the paper begins by critically examining various definitions of democracy, especially those that, claiming to follow Schumpeter, a...

  2. A Comparative Study on Family Education in America and China

    Institute of Scientific and Technical Information of China (English)

    徐岩

    2013-01-01

      Family education is an important complement to school education. This paper focuses on the differences and simi-larities of family education in America and China to accelerate their learning from each other and improvement.

  3. Rethinking imperialist theory and US imperialism in Latin America

    Directory of Open Access Journals (Sweden)

    James Petras

    2011-10-01

    Full Text Available En este artículo criticamos la teorización contemporánea sobre el imperialismo por su reducción al ámbito económico y su carencia de un análisis de clase e institucional específico dentro del estado imperialista. En el contexto de este argumento, establecemos la importancia del análisis de clase para aprovechar las dinámicas de cambio del poder imperialista procediendo a argumentar la alineación de las fuerzas de clase en el mundo de la economía, en sus interacciones con la configuración del poder imperialista, dejando la realineación del poder económico en el sistema mundial capitalista que constituye el mayor cambio para el imperialismo estadounidense en sus operaciones en América Latina. En la sección final del artículo explicamos las discontinuidades y continuidades en las relaciones imperialistas estadounidenses con Latinoamérica, y las potencialidades y contrastes de estas relaciones en el crecimiento económico y el desarrollo.Palabras clave: teoría imperialista, imperialismo estadounidense, Latinoamérica_____________________Abstract:In this paper we criticize contemporary theorizing about imperialism for its economic reductionism and a lack of class analysis and institutional specificity regarding the imperial state. In the context of this argument we establish the importance of class analysis for grasping the changing dynamics of imperial power before proceeding to argue how specific alignments of class forces in the world economy, in their interactions with existing imperial power configurations, is leading to a realignment of economic power in the world capitalist system that constitutes a major challenge for US imperialism in its Latin American operations. In the final section of the paper we point to the discontinuities and continuities in US imperial relations with Latin America, and the potentialities and constraints of these relations on economic growth and development.Keywords: Imperialism Theory, US

  4. Teach for America's Long Arc: A Critical Race Theory Textual Analysis of Wendy Kopp's Works

    Science.gov (United States)

    Barnes, Michael C.; Germain, Emily K.; Valenzuela, Angela

    2016-01-01

    We read and analyzed 165,000 words and uncover a series of counter-stories buried within a textual corpus, authored by Teach For America (TFA) founder Wendy Kopp (Kopp, 1989, 2001; Kopp & Farr, 2011), that offers insight into the forms of racism endemic to Teach For America. All three counter-stories align with a critical race theory (CRT)…

  5. Morality and politics: Comparing alternate theories.

    Science.gov (United States)

    Miles, Andrew; Vaisey, Stephen

    2015-09-01

    Debates about the American "culture wars" have led scholars to develop several theories relating morality to political attitudes and behaviors. However, researchers have not adequately compared these theories, nor have they examined the overall contribution of morality to explaining political variation. This study uses nationally representative data to compare the utility of 19 moral constructs from four research traditions - associated with the work of Hunter, Lakoff, Haidt, and Schwartz - for predicting political orientation (liberalism/conservatism). Results indicate that morality explains a third of the variation in political orientation - more than basic demographic and religious predictors - but that no one theory provides a fully adequate explanation of this phenomenon. Instead, political orientation is best predicted by selected moral constructs that are unique to each of the four traditions, and by two moral constructs that crosscut them. Future work should investigate how these moral constructs can be synthesized to create a more comprehensive theory of morality and politics.

  6. Job flexibility in Latin America: A comparative analysis

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    Manuel Alejandro Ibarra Cisneros

    2010-01-01

    Full Text Available Most of studies about labor flexibility show a partial image of the situation of Latin America labor markets. They are limited to confirm, the existence of high degrees of rigidity and the necessity to conduct labor reforms to the margin of specific national circumstances. The design of a synthetic labor rigidity indicator using methodology considered by the oecd, through a factor analysis for countries of IberoAmerica, allows obtaining certain advances in relation to this debate. The results establish the high importance of the rigidity in the procedures of collective dismissal, over normative aspects related to fixed term contracts. Finally, it is establish the little relation between flexibility levels and results in terms of economic development, putting into question the assertions that try to extrapolate strategies of flexibilization like isolated measurement to facilitate the economic progress of a country.

  7. University Teaching of Communication Theory in Europe and Latin America

    Directory of Open Access Journals (Sweden)

    Miguel Vicente-Mariño, Ph.D.

    2010-01-01

    Full Text Available Communication Theories are one of the main pillars of many higher education studies that, placing communication as its core topic, have raised public presence during the last two decades at universities worldwide. However, this ongoing process of consolidation inside the scholar field is not walking together with an objective analysis of the ontological and epistemological positions serving as milestones for Communication Theories’ courses. Taking an international online survey as the initial source of information, completed by professors and lectures working at different European and Latin American countries, this paper collects some useful information about the positions and the content of these courses, bringing some light in a confusing fieldwork. If the goal of a common higher education area is real, then deep comparative studies like this must be carried out. Results appeal to a clear dominance of Mass Communications as the main topic inside these courses, although there is a high level of interdisciplinary approaches. Some of the requirements established by the new European Higher Education Area are not implemented in the expected competencies for the students, although they are all present in the courses’ objectives. Professors and lecturers are conscious about the new standard set by the Bologna Process, but this consciousness has not arrived to the classrooms yet.

  8. Comparative study of the Judiciary Electronic in Latin America, 2013

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    José Miguel Busquets

    2014-07-01

    Full Text Available In this paper, we present the index of the E-Justice in 2013 for 8 countries in Ibero America. The Electronic Judiciary index aims to measure the degree of incorporation of Information Technology and Communication (ICT in the judicial branch. The same is the result of a survey conducted between April and August 2013 to informants, many of them members of universities that belong to the Red LEFIS (Legal Framework for the Information Society. Significant results of this research are:1 While the dimensions of information and management of the index are the most developed, the dimensions of relationship and decision of the same index are much less developed in the whole of the 8 Ibero American countries studied.2 More than 50% of the Electronic Judiciary index developed, we find seven countries, with means more than half of the total countries in the region. Of wich and in descending order, there is Brazil, Spain, Costa Rica, Portugal, Chile, Argentina, Uruguay and Cuba.

  9. Comparative Analysis on Pesticide Management System between America and China

    Institute of Scientific and Technical Information of China (English)

    Cunzheng; ZHANG; Yong; GONG; Weili; SHAN; Xianjin; LIU

    2013-01-01

    The production and usage amount of pesticides in US rank the leading position in the world. On the basis of protecting the environment and human health, US government has enacted a series of laws and regulations to normalize and manage the production and use of pesticides so as to ensure the development of modern agriculture. In this paper, US pesticide management system is briefly reviewed and compared with the pesticide management system of China, which may provide good reference for china in establishing its own management system and make steps towards the international standard.

  10. Comparative Study of Civic Education in China and America%中美公民教育比较研究

    Institute of Scientific and Technical Information of China (English)

    汪婷

    2014-01-01

    当前我国公民教育的复兴是中国步入现代化的必然结果,也是政治民主化的必然选择,在中国现代化进程中具有非常重要的作用。为更好的开展公民教育借鉴他国经验非常必要。将我国公民教育与美国公民教育理论进行比较,吸取美国公民教育理论精华丰富我国公民教育理论,提高教育的实际效果,实现公民教育的最终目的。%The revival of the civic education in China is the inevitable result of China's modernization, as well as the inevitable choice of political democratization, and plays a very important role in China's modernization. In order to improve civic education , combining the international experience is very necessary. By comparing with the theory of China's civil education and America's , absorbing the essence of America's civil education theory can improve China's theory and practical effect , realize the ultimate goal of civic education.

  11. Re-Bordering Comparative Education in Latin America: Between Global Limits and Local Characteristics

    Science.gov (United States)

    Acosta, Felicitas; Perez Centeno, Cristian G.

    2011-01-01

    Conceived for presentation at the XIV WCCES conference in Istanbul in 2010, the topic of which was "Bordering Comparative Education", this paper, within that framework, aims to present the current state of the discipline in Latin America in relation to a quick overview of its present-day situation at a global level. After providing an overview of…

  12. Adolescent Peer Relations and Socioemotional Development in Latin America: Translating International Theory into Local Research.

    Science.gov (United States)

    Berger, Christian; Lisboa, Carolina; Cuadros, Olga; de Tezanos-Pinto, Pablo

    2016-06-01

    Peer relations constitute a main developmental context for adolescents. Peers offer an instance for identity definition and set the norms of acceptable and valued characteristics, behaviors, and attitudes, representing a societal model that allows and restrains avenues for adolescents' socioemotional development. The present article departs from these considerations to review research on adolescents' peer relations in Latin America from a socioemotional perspective. First, approaches to adolescence are discussed, with a main focus on attachment and identity theories, based on a bioecological framework. Then, a review of research in Latin America on friendships, school climate, and intergroup relations is presented. The discussion addresses the tension between theories and evidence generated in developed societies and highlights the particularities of Latin American youth, stressing the need for collecting local data.

  13. Norm Theory: Comparing Reality to Its Alternatives.

    Science.gov (United States)

    Kahneman, Daniel; Miller, Dale T.

    1986-01-01

    A theory of norms and normality is applied to some phenomena of emotional responses, social judgment, and conversations about causes. Norm theory is applied in analyses of enhanced emotional response to events that have abnormal causes, of generation of prediction from observations of behavior, and of the role of norms. (Author/LMO)

  14. A Comparative Analysis of Three Unique Theories of Organizational Learning

    Science.gov (United States)

    Leavitt, Carol C.

    2011-01-01

    The purpose of this paper is to present three classical theories on organizational learning and conduct a comparative analysis that highlights their strengths, similarities, and differences. Two of the theories -- experiential learning theory and adaptive -- generative learning theory -- represent the thinking of the cognitive perspective, while…

  15. Re-bordering comparative education in Latin America: Between global limits and local characteristics

    Science.gov (United States)

    Acosta, Felicitas; Perez Centeno, Cristian G.

    2011-08-01

    Conceived for presentation at the XIV WCCES conference in Istanbul in 2010, the topic of which was "Bordering Comparative Education", this paper, within that framework, aims to present the current state of the discipline in Latin America in relation to a quick overview of its present-day situation at a global level. After providing an overview of the current debates on comparative education, with special emphasis on what the authors refer to as motor nuclei (a series of milestones or episodes which have become transdiscursive as the discipline has evolved), as well as pinpointing current challenges in the field, this paper looks into the development of the discipline in Latin America and how it has contributed to the understanding of the region's educational systems. The paper also examines the unique relationship between comparative studies and the field of educational planning in Latin America. The authors then go on to provide a thematic analysis, categorising the papers presented at three conferences held by the Sociedad Argentina de Estudios Comparados en Educación (SAECE, the Argentine Society for Comparative Education Studies) in 2005, 2007 and 2009. The paper closes with several conclusions regarding the current debate on the discipline in the region and its possibilities for the future.

  16. Comparing cosmic web classifiers using information theory

    Science.gov (United States)

    Leclercq, Florent; Lavaux, Guilhem; Jasche, Jens; Wandelt, Benjamin

    2016-08-01

    We introduce a decision scheme for optimally choosing a classifier, which segments the cosmic web into different structure types (voids, sheets, filaments, and clusters). Our framework, based on information theory, accounts for the design aims of different classes of possible applications: (i) parameter inference, (ii) model selection, and (iii) prediction of new observations. As an illustration, we use cosmographic maps of web-types in the Sloan Digital Sky Survey to assess the relative performance of the classifiers T-WEB, DIVA and ORIGAMI for: (i) analyzing the morphology of the cosmic web, (ii) discriminating dark energy models, and (iii) predicting galaxy colors. Our study substantiates a data-supported connection between cosmic web analysis and information theory, and paves the path towards principled design of analysis procedures for the next generation of galaxy surveys. We have made the cosmic web maps, galaxy catalog, and analysis scripts used in this work publicly available.

  17. Comparing cosmic web classifiers using information theory

    CERN Document Server

    Leclercq, Florent; Jasche, Jens; Wandelt, Benjamin

    2016-01-01

    We introduce a decision scheme for optimally choosing a classifier, which segments the cosmic web into different structure types (voids, sheets, filaments, and clusters). Our framework, based on information theory, accounts for the design aims of different classes of possible applications: (i) parameter inference, (ii) model selection, and (iii) prediction of new observations. As an illustration, we use cosmographic maps of web-types in the Sloan Digital Sky Survey to assess the relative performance of the classifiers T-web, DIVA and ORIGAMI for: (i) analyzing the morphology of the cosmic web, (ii) discriminating dark energy models, and (iii) predicting galaxy colors. Our study substantiates a data-supported connection between cosmic web analysis and information theory, and paves the path towards principled design of analysis procedures for the next generation of galaxy surveys. We have made the cosmic web maps, galaxy catalog, and analysis scripts used in this work publicly available.

  18. Comparing MMS Observations with Theory and Simulation

    Science.gov (United States)

    Moore, Thomas Earle; Burch, James L.; Torbert, Roy B.

    2016-04-01

    MMS completes its first year in orbit on 13 March 2016, and its science data set will by then be open to use by the entire research community, including theorists and simulators. We will briefly summarize observational highlights from the first year of MMS operations to illustrate the unprecedented accuracy and resolution of phenomena that have until now been inaccessible to observation, especially at electron scales. The goal of such observations has always been to test and refine our understanding of reconnection, as embodied in our theoretical and simulation models, with the goal of better predicting the morphology and dynamic evolution of reconnection as a driver of space weather. Toward that end, we summarize the MMS data products and suggest ways for the theory and modeling community to make contact with MMS observations and use them to test their models.

  19. Comparing Multiple Discrepancies Theory to Affective Models of Subjective Wellbeing

    Science.gov (United States)

    Blore, Jed D.; Stokes, Mark A.; Mellor, David; Firth, Lucy; Cummins, Robert A.

    2011-01-01

    The Subjective Wellbeing (SWB) literature is replete with competing theories detailing the mechanisms underlying the construction and maintenance of SWB. The current study aimed to compare and contrast two of these approaches: multiple discrepancies theory (MDT) and an affective-cognitive theory of SWB. MDT posits SWB to be the result of perceived…

  20. Unfulfilled promise? A critical balance of theories of political change and their applicability to Latin America

    Directory of Open Access Journals (Sweden)

    Salvador Martí i Puig

    2001-11-01

    Full Text Available This article offers a critical analysis of the various theoretical focuses that have, since the mid-twentieth century, attempted to interpret the paths along which the American subcontinent would have to pass in order to achieve democracy and economic development.It begins by describing and questioning the first generation (developmentalist and second generation (dependency theories. It then concentrates on the intellectual impact of the processes of transition toward democracy in various parts of Latin America and the appearance of medium range theories which attempted to show the rationality of these occurrences. Finally, it sets out some of the challenges faced by the most recent approaches to democratictransition in light of the theoretical framework mapped out in the course of the article.

  1. Making central-local relations work:Comparing America and China environmental governance systems

    Institute of Scientific and Technical Information of China (English)

    Dan GUTTMAN; SONG Yaqin

    2007-01-01

    The challenge of making central requirements work at local levels is a common problem for environmental governance throughout the world.Countries can learn from one another's approaches,but must understand the local con text in which they are set.This paper compares the features of the China and US environmental governance systems that need be understood by those working between the systems.Key features include:(1) common values which shape the environmental governance choices in both countries,but which may have different practical meanings in each country;(2) America's common law-based environmental governance system,and China's civil law system,which involves plan(s)as well as law;(3) America's Federal central-local system,and China's unitary central local system.This paper concludes by suggesting areas in which further comparative understanding may be of value,including:(1) better under standing of the role of plan and law in China's governance system;(2) comparing the American Federal-state agreement system for implementation of environmental law with the China central-local system of target responsibility agreements for plan implementation;(3) improving understanding of nongovernmental resources needed to assure compliance with environmental laws and plans;(4) identifying institutions that can coordinate central-local and cross-border environmental governance.

  2. [Research on violence against women in Latin America: from blind empiricism to theory without data].

    Science.gov (United States)

    Castro, Roberto; Riquer, Florinda

    2003-01-01

    Research on violence against women in Latin America presents an interesting paradox: while the number of studies is quite small, there also appears to be a sense that research on this topic has been exhausted, despite the lack of any definitive responses to the nature and causes of the problem. This results from the boom in studies with a strong empirical focus, lacking any basis in more general sociological theory. On the other hand, research using social theory tends to ignore the existing mediations between structural arrangements and any individual specific behavior, as well as the interactive nature of domestic violence. Meanwhile, empirical research presents inconsistent results and tends to run into methodological problems such as operational confusion, contradictory findings, and results and recommendations that are too obvious. New research designs must be developed to enrich the field and which are solidly based on the body of conceptual knowledge in social sciences, abandoning designs without theory and those which are merely statistical. Only then will it be possible to imagine the new research questions that the problem of violence requires.

  3. Borders and border representations: Comparative approximations among the United States and Latin America

    Directory of Open Access Journals (Sweden)

    Marcos Cueva Perus

    2005-01-01

    Full Text Available This article uses a comparative approach regarding frontier symbols and myths among the United States, Latin America and the Caribbean. Although wars fought over frontiers have greatly diminished throughout the world, the conception of frontier still held by the United States is that of a nationalist myth which embodies a semi-religious faith in the free market and democracy. On the other hand, Latin American and Caribbean countries, whose frontiers are far more complex, have shown extraordinary stability for several decades. This paper points out the risks involved in the spread of United States´ notions of frontier which, in addition, go hand-in-hand with the problem of multicultural segmentation. Although Latin American and Caribbean frontiers may be stable, they are vulnerable to the infiltration of foreing frontier representations.

  4. Politics of energy forecasting. A comparative study of energy forecasting in Western Europe and North America

    Energy Technology Data Exchange (ETDEWEB)

    Baumgartner, T.; Midttun, A. (eds.)

    1987-01-01

    The comprehensive book presented covers the theory and praxis of energy modelling, pitfalls of mega-modelling and negotiated futures eg. energy forecasting in West Germany. Elites and professionals, electricity forecasting in Norway, Denmark and France, and market competition are reviewed, and comparative notes on politics and methodology are given.

  5. Comparative phylogeography of Oryzomys couesi and Ototylomys phyllotis; historic and geographic implications for the Central America conformation

    Directory of Open Access Journals (Sweden)

    Tania Anaid Gutiérrez-García

    2013-12-01

    Full Text Available Central America is an ideal region for comparative phylogeographic studies because of its intricate geologic and biogeographic history, diversity of habitats and dynamic climatic and tectonic history. The aim of this work was to assess the phylogeography of two rodents codistributed throughout Central America, in order to identify if they show concordant genetic and phylogeographic patterns. The synopsis includes four parts: (1 an overview of the field of comparative phylogeography; (2 a detailed review that describes how genetic and geologic studies can be combined to elucidate general patterns of the biogeographic and evolutionary history of Central America; and a phylogeographic analysis of two species at both the (3 intraspecific and (4 comparative phylogeographic levels. The last incorporates specific ecological features and evaluates their influence on the species’ genetic patterns. Results showed a concordant genetic structure influenced by geographic distance for both rodents, but dissimilar dispersal patterns due to ecological features and life history. 

  6. A Comparative Analysis of Primary and Extreme Characteristics of Dry or Wet Status between Asia and North America

    Institute of Scientific and Technical Information of China (English)

    HUA Lijuan; MA Zhuguo; ZHONG Linhao

    2011-01-01

    In this study, the Palmer Drought Severity Index (PDSI) was used to analyze the average and extreme dry/wet states of Asia and North America from 1953 to 2003. The results indicate that the two continents underwent drying trends during this period. Compared with North America, Asia showed more severe drought trends. However, more significant and regular seasonal variation for drought was found in North America. The driest regions in Asia were located in the northern region of China, Mongolia, and eastern mid-Siberian plateau. Most regions in central North America were relatively wetter than other regions.The northern and southwestern regions of North America, as well as the Atlantic and Pacific coastal areas,experienced the most drought during this period. A sharp increase of the drought area and the number of extreme drought events took place from 1997 to 2003 in both Asia and North America. Severe drought events were more likely to occur during the summer on both continents. Asia had the most extreme drought events during July, but North America reached its highest drought frequency from June to September. In Asia, a persistent increasing trend of extreme drought emerged throughout the studied period. However,a more complex evolution of drought emerged in North America: a decreasing trend appeared before the mid-1960s and an increasing trend appeared after the late 1970s. A relatively steady dry/wet status was observed between the mid-1960s and the late 1970s. The role of exceptional, extreme drought events with respect to the La Nifia event was considered during 1997-2003.

  7. Health care privatization in Latin America: comparing divergent privatization approaches in Chile, Colombia, and Mexico.

    Science.gov (United States)

    Bustamante, Arturo Vargas; Méndez, Claudio A

    2014-08-01

    The public-private mix in Chile, Colombia, and Mexico was very similar until the early 1980s when Chile undertook health care privatization as part of comprehensive health care reform. Since then, health care privatization policies have diverged in these countries. In this study we characterize health care privatization in Latin America and identify the main factors that promoted and hindered privatization by comparing the experiences of these countries. We argue that policy elites took advantage of specific policy environments and the diffusion of privatization policies to promote health care privatization while political mobilization against privatization, competing policy priorities, weak market and government institutions, and efforts to reach universal health insurance hindered privatization. The privatization approaches of Chile and Colombia were classified as "big-bang," since these countries implemented health care privatization more rapidly and with a wider scope compared with the case of Mexico, which was classified as gradualist, since the privatization path followed by this country adopted a slower pace and became more limited and focalized over time. We conclude that the emphasis on policy-driven privatization diminished in the 1990s and 2000s because of increased public health care financing and a shift in health care reform priorities. Health care privatization in the region, however, continued as a consequence of demand-driven privatization.

  8. Comparative index and Sturmian theory for linear Hamiltonian systems

    Science.gov (United States)

    Šepitka, Peter; Šimon Hilscher, Roman

    2017-01-01

    The comparative index was introduced by J. Elyseeva (2007) as an efficient tool in matrix analysis, which has fundamental applications in the discrete oscillation theory. In this paper we implement the comparative index into the theory of continuous time linear Hamiltonian systems, study its properties, and apply it to obtain new Sturmian separation theorems as well as new and optimal estimates for left and right proper focal points of conjoined bases of these systems on bounded intervals. We derive our results for general possibly abnormal (or uncontrollable) linear Hamiltonian systems. The results turn out to be new even in the case of completely controllable systems. We also provide several examples, which illustrate our new theory.

  9. Forced genital cutting in North America: feminist theory and nursing considerations.

    Science.gov (United States)

    Antinuk, Kira

    2013-09-01

    This article will examine forced nontherapeutic genital cutting (FNGC) through the lens of feminist theory and in relation to the concept of social justice in nursing. I will address the underlying assumptions of feminism and how they apply to the two currently legal forms of FNGC in North America: male infant circumcision and intersex infant/child genital cutting. Through a literature review and critical analysis of these practices, I will illustrate the challenges they present when considering the role of nurses in promoting social justice. If feminism asserts that bodily integrity, autonomy, and fundamental human rights are essential components of gender equality, it follows that these must be afforded to all genders without discrimination. Historically, there have been few feminists who have made this connection, yet a growing and diverse movement of people is challenging the frameworks in which we consider genital cutting in our society. Nurses are positioned well to be at the forefront of this cause and have a clear ethical duty to advocate for the elimination of all forms of FNGC.

  10. Forest carbon uptake in North America's aging temperate deciduous forests: A data-theory-model mismatch?

    Science.gov (United States)

    Gough, C. M.; Curtis, P.; Bond-Lamberty, B. P.; Hardiman, B. S.; Scheuermann, C. M.; Nave, L. E.; Nadelhoffer, K. J.

    2015-12-01

    Century-old temperate deciduous forests in the US upper Midwest and Northeast power much of North America's terrestrial carbon sink, but these forests' carbon uptake capacity is expected to soon decline. But will this really happen? We marshal empirical data and ecological theory to show that declines in carbon uptake are not imminent in regrown temperate deciduous forests during coming decades, despite long-held assumptions and modeling results that predict declining carbon uptake during middle stages of ecosystem development. Age and production data for temperate deciduous forests, synthesized from published literature, do not provide evidence for declining net primary and ecosystem production (NPP and NEP, respectively) within the age-range most regional forests will occupy over the next half-century. Ecological theory suggests a mechanism for sustained carbon uptake in the region's aging forests in which high-frequency, low-severity disturbances maintain NPP and NEP by increasing ecosystem complexity. This theoretical model is supported by observations from the Forest Accelerated Succession Experiment in Michigan, USA, but such mechanisms sustaining production in old forests are not broadly represented in ecosystem models. Ecosystems experiencing low-frequency, high-severity disturbances that simplify ecosystem complexity do exhibit declining production during middle stages of succession, but we suggest that such scenarios have exerted a disproportionate influence on prevailing modeling and ecological assumptions regarding age-related declines in forest production. We conclude that there is wide ecological space for forests to sustain high rates of carbon uptake during middle stages of ecosystem development, and that advancing mechanistic understanding of long-term forest carbon cycle dynamics is essential to modeling the continent's future carbon sink strength.

  11. Conceptualizations of Creativity: Comparing Theories and Models of Giftedness

    Science.gov (United States)

    Miller, Angie L.

    2012-01-01

    This article reviews seven different theories of giftedness that include creativity as a component, comparing and contrasting how each one conceptualizes creativity as a part of giftedness. The functions of creativity vary across the models, suggesting that while the field of gifted education often cites the importance of creativity, the…

  12. Reciprocal Ontological Models Show Indeterminism Comparable to Quantum Theory

    Science.gov (United States)

    Bandyopadhyay, Somshubhro; Banik, Manik; Bhattacharya, Some Sankar; Ghosh, Sibasish; Kar, Guruprasad; Mukherjee, Amit; Roy, Arup

    2016-12-01

    We show that within the class of ontological models due to Harrigan and Spekkens, those satisfying preparation-measurement reciprocity must allow indeterminism comparable to that in quantum theory. Our result implies that one can design quantum random number generator, for which it is impossible, even in principle, to construct a reciprocal deterministic model.

  13. The Constant Comparative Analysis Method Outside of Grounded Theory

    Science.gov (United States)

    Fram, Sheila M.

    2013-01-01

    This commentary addresses the gap in the literature regarding discussion of the legitimate use of Constant Comparative Analysis Method (CCA) outside of Grounded Theory. The purpose is to show the strength of using CCA to maintain the emic perspective and how theoretical frameworks can maintain the etic perspective throughout the analysis. My…

  14. Beyond Mystification: Reconnecting World-System Theory for Comparative Education.

    Science.gov (United States)

    Clayton, Thomas

    1998-01-01

    Reviews the literature on world-system theory and critical thinking about class relations to examine differences in thinking about the responses of subordinate actors to hegemony. Suggests an agency-oriented agenda for world-system inquiry in comparative education that focuses on resistance and accommodation by periphery students and educators to…

  15. Reciprocal Ontological Models Show Indeterminism Comparable to Quantum Theory

    Science.gov (United States)

    Bandyopadhyay, Somshubhro; Banik, Manik; Bhattacharya, Some Sankar; Ghosh, Sibasish; Kar, Guruprasad; Mukherjee, Amit; Roy, Arup

    2017-02-01

    We show that within the class of ontological models due to Harrigan and Spekkens, those satisfying preparation-measurement reciprocity must allow indeterminism comparable to that in quantum theory. Our result implies that one can design quantum random number generator, for which it is impossible, even in principle, to construct a reciprocal deterministic model.

  16. Theory, Period Styles, and Comparative Literature as Discipline

    OpenAIRE

    Sucur, Slobodan

    2000-01-01

    In his article, "Theory, Period Styles, and Comparative Literature as Discipline," Slobodan Sucur attempts to answer the following question: Can a rapprochement be brought about between various, often antagonistic, literary-theoretical views and the concept of comparative literature itself, which requires accord, consensus, agreement, etc., for it to function as a concrete body and discipline? Sucur attempts dealing with this question in three parts of the paper: First, he establishes a relat...

  17. Comparative Advantage: Theory, Empirical Measures And Case Studies

    Directory of Open Access Journals (Sweden)

    Tri WIDODO

    2009-11-01

    Full Text Available This paper consists of three main parts i.e. theory, analytical tool and case studies of comparative advantage. Firstly, we review the theory and various empirical measures of comparative advantage. We would argue that for the catching-up economies, like ASEAN countries, the meaning of “leading exported products” could be examined from the two points of view i.e. international competitiveness and country’s trade balance. Secondly, we combine two indexes of comparative advantage, i.e. Revealed Symmetric Comparative Advantage (RSCA index by Dalum et al. (1998 and Laursen (1998, and Trade Balance Index (TBI by Lafay (1992, which represent well the two points of view, to propose an analytical tool, namely “products mapping”. Thirdly, this analytical tool is applied to analyze exported products (defined as 3-digit SITC Revision 2 of the ASEAN countries. This paper concludes that in the cases of ASEAN countries, the higher the comparative advantage for a specific product, the higher the possibility of the country as a net-exporter becomes. This finding strongly supports the theory of comparative advantage.

  18. Fiscal policy and private investment: latin america in a comparative perspective

    Directory of Open Access Journals (Sweden)

    Emilio Caballero U.

    2012-06-01

    Full Text Available The main objective of the paper is to assess the impact of fiscal variables on private investment comparing some Latin-American economies to other advanced ones. For such purposes, the authors carry out an econometric analysis for the period 1990-2008. They make use of two dynamic panel models in which they group countries with similar characteristics and development levels. In one of them, they include Mexico, Brazil, Chile, Colombia and Uruguay; whereas in the second one the countries accounted for are the U.S., Canada, Spain, Korea, Ireland and Japan. They specify in both models an investment function using as arguments a wide range of variables, including those related with fiscal policy. From their results the authors infer that governments can, with higher spending, boost up the economy even when they finance spending with higher taxes. In Latin America, where income concentration is enormous, a proposal to boost up the economy through higher government expenditure financed with a progressive income tax, is even more justified.

  19. Cannabis policy reforms in the Americas: a comparative analysis of Colorado, Washington, and Uruguay.

    Science.gov (United States)

    Pardo, Bryce

    2014-07-01

    Legal reforms in the Americas are influencing the public debate on cannabis policy. Uruguay and the two US states of Colorado and Washington have taken steps to regulate and legitimize the production, distribution, and use of cannabis and its derivatives. Earlier experiences with medical cannabis in the United States and limited access and production models in Europe have been insightful. However, these reforms are going further still, venturing into a new area of cannabis policy. A lack of empirical evidence regarding the effects of such reforms poses a challenge for policymakers. These examples will inform the design and implementation of any future cannabis policies. Therefore, a clear understanding of the details of each jurisdiction is necessary in developing future legal changes. Literature comparing the models of Uruguay, Colorado, and Washington is thin. This paper is based on an exhaustive examination of the laws, regulations, and discussions with regulators and functionaries of each jurisdiction. The research and analysis herein will provide policymakers with a greater understanding of the laws and regulations relevant to legal cannabis in these three jurisdictions, as well as draw to their attention some potential impacts and challenges of cannabis reform that require additional consideration to ensure public safety and health.

  20. 美国的利益集团政治理论综述%THEORY OF INTEREST GROUP POLITICS IN AMERICA

    Institute of Scientific and Technical Information of China (English)

    谭融

    2001-01-01

    The theory of interest group politics is an important part of the theory of political science. This thesis has introduced, analysed and compared the theories of the interest groups politics in America systematically. They are the theories in the early period of the United States, the ones in the first half of the 20th century, pluralism theory, elitism theory, interest representative theory and so on.%较为系统地介绍了美国的利益集团政治理论,包括早期的利益集团政治理论,20世纪上半叶的利益集团政治理论,多元主义集团政治理论,精英主义集团政治理论以及利益代表制理论等。并对不同时期和不同派别的理论观点进行了比较和评析。

  1. Neurocysticercosos in South-Central America and the Indian Subcontinent: a comparative evaluation

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    Gagandeep Singh

    1997-09-01

    Full Text Available Neurocysticercosis is an important public health problem in South-Central America and South Asia. A review of the differences in epidemiological and clinical attributes of cysticercosis and taeniasis in South Central America and India, respectively, is undertaken in the present communication. Intestinal taeniasis is hyperendemic in several American countries. In comparison, the prevalence of Taenia solium infestation is lower in India. The clinical manifestations in several American neurocysticercosis series comprise epilepsy, intracranial hypertension and meningeal - racemose cysticercosis, in roughly equal proportions. An overwhelming majority of the Indian subjects present with seizures. The commonest pathological substrate of the disorder in Indian patients is the solitary parenchymal degenerating cyst. The reasons for the predominance of solitary forms in India, and of multilesional forms in South Central America are discussed. The magnitude of Taenia solium infestation and the frequency of pork consumption in a given population appear to influence the quantum of cyst load in affected individuals.

  2. Tendencies toward the Adult Educator Profession in Latin America: An Exploratory, Comparative, and Participatory Study.

    Science.gov (United States)

    Goerne, Juan Jose Madrigal

    To obtain information on adult educator education in Latin America, two approaches were used: (1) data collected via e-mail or through the website of the Universidad Pedagogica Nacional de Mexico and (2) interviews with directors, coordinators, teaching staff, and students in six teacher education programs in Mexico, Brazil, Argentina, and…

  3. Freedom of Publication in Spanish America (an Essay on the Comparative History of Modern Public Opinion

    Directory of Open Access Journals (Sweden)

    Gilberto Loaiza Cano

    2016-07-01

    Full Text Available This essay attempts to demostrate differences and similitudes in the process of establishing freedom of publication in several locations of Spanish America. This analysis will concentrate on the decades between 1810 and 1830 and will mainly include the events occurred in New Spain, New Granada, Río de la Plata and Chile.

  4. A comparative study of Taiwan's short-term medical missions to the South Pacific and Central America

    Directory of Open Access Journals (Sweden)

    Chiu Ya-Wen

    2012-12-01

    Full Text Available Abstract Background Taiwan has been dispatching an increasing number of short-term medical missions (STMMs to its allied nations to provide humanitarian health care; however, overall evaluations to help policy makers strengthen the impact of such missions are lacking. Our primary objective is to identify useful strategies by comparing STMMs to the South Pacific and Central America. Methods The data for the evaluation come from two main sources: the official reports of 46 missions to 11 countries in Central America and 25 missions to 8 countries in the South Pacific, and questionnaires completed by health professionals who had participated in the above missions. In Central America, STMMs were staffed by volunteer health professionals from multiple institutions. In the South Pacific, STMMs were staffed by volunteer health professionals from single institutions. Results In comparison to STMMs to Central America, STMMs to the South Pacific accomplished more educational training for local health providers, including providing heath-care knowledge and skills (p Conclusions Health-care services provided by personnel from multiple institutions are as efficient as those from single institutions. Proficiency in the native language and provision of education for local health-care workers are essential for conducting a successful STMM. Our data provide implications for integrating evidence into the deployment of STMMs.

  5. A comparative analysis of clinical characteristics of patients with paroxysmal nocturnal hemoglobinuria between Asia and Europe/America.

    Science.gov (United States)

    Yu, Fan; Du, Yali; Han, Bing

    2016-06-01

    To accurately analyze the clinical characteristics of paroxysmal nocturnal hemoglobinuria (PNH) in different ethnic backgrounds, we retrieved all retrospective studies on clinical characteristics of PNH with a median follow-up period >60 months published after 2000, analyzed the clinical characteristics of PNH patients in Asia and European/America, and statistically compared enumeration data in these studies. We included 1665 patients in this analysis. The proportion of female patients in Asia was significantly lower than that in Europe/America (P = 0.000). Incidence rates of hemoglobinuria and thromboembolism in Asia were significantly lower than in Europe/America (both P values were 0.000). Within the subgroups of patients with thromboembolism, Asian patients had a higher proportion of arterial thrombosis while Western patients had a higher proportion of abdominal venous thrombosis. Bone marrow failure was not clearly defined in most studies. The proportion of patients with pancytopenia was higher in China than in France (P = 0.048). The total death rates were similar in both ethnic groups (P > 0.05). In Europe/America the major cause of death was thromboembolism and in Asian countries was serious infections. Differences in population characteristics of PNH patients among different ethnic groups indicate the possibility of differential pathogenesis and may be informative for treatment decisions.

  6. Comparative climatological study of large-scale traveling ionospheric disturbances over North America and China in 2011-2012

    Science.gov (United States)

    Ding, Feng; Wan, Weixing; Li, Qiang; Zhang, Rui; Song, Qian; Ning, Baiqi; Liu, Libo; Zhao, Biqiang; Xiong, Bo

    2014-01-01

    This paper describes a comparative study of the climatology of large-scale traveling ionospheric disturbances (LSTIDs) over North America and China based on observations obtained in 2011-2012 using two GPS networks characterized by dense regional coverage. We identified a total of 390 LSTIDs in China and 363 events in North America. These can be categorized into three types, namely south, north, and westward propagating LSTIDs. The southward LSTIDs over North America show similar diurnal and seasonal variations to those of geomagnetic disturbances, but the southward LSTIDs over China do not show such variations. The occurrence of southward LSTIDs over China increases at ~1-2 h after the time of geomagnetic activity maximum; this increase lasts several hours until the geomagnetic minimum, which happens during the local evening. The southward LSTIDs over North America show a semiannual variation with two peaks in March and October, while the southward LSTIDs over China show a major peak in January. Northward LSTIDs occur much less frequently than their southward counterparts, and they are mainly observed in China. They mostly occur during geomagnetic activity maximum, indicating a possible relation with the degree of geomagnetic activity. Westward LSTIDs are seen in both regions during local sunrise and may be excited by the moving solar terminator. No relationship was found between these latter LSTIDs and the geomagnetic disturbances. The propagation direction of westward events changed from northwestward during winter solstice to southwestward at summer solstice. This is consistent with the seasonal orientation of the solar terminator.

  7. Historical atmospheric mercury emissions and depositions in North America compared to mercury accumulations in sedimentary records

    Science.gov (United States)

    Pirrone, Nicola; Allegrini, Ivo; Keeler, Gerald J.; Nriagu, Jerome O.; Rossmann, Ronald; Robbins, John A.

    Gold and silver production in North America (included United States, Canada and Mexico) released a large amount of mercury to the atmosphere until well into this century when mercury (Hg) amalgamation was replaced by cyanide concentration. Since then, emissions from industries have been the dominant anthropogenic sources of atmospheric Hg in North America as a whole. Past Hg emissions from gold and silver extractions in North America during the 1800s do not show a clear evidence of atmospheric deposition occurred at the coring sites considered in this study. Estimated atmospheric emissions of Hg in North America peaked in 1879 (at about 1708 t yr -1) and 1920 (at about 940 t yr -1), primarily due to Hg emissions from gold and silver mining. After the Great Economic Depression (1929) Hg emissions peaked again in the 1947 (274 t yr -1), in 1970 (325 t yr -1) and in 1989 (330 t yr -1) as result of increased Hg emissions from industrial sources, though improvements in the emissions control technology in United States and Canada have been substantial. Estimates of total atmospheric deposition fluxes of Hg to water and terrestrial receptors were in the range of 14.3-19.8 μg m -2 yr -1 in North America as a whole, and averaged 135 μg m -2 yr -1 (global background + local emissions) in the Great Lakes. These values were in good agreement with recent estimates reported in literature. The comparison of atmospheric Hg deposition fluxes with Hg accumulation rates in sediment cores suggests that atmospheric deposition was the major source of Hg entering the lakes system at coring sites, however, important contributions to Lake Ontario sediment cores sites from 1940 to 1970 were likely originated from local point sources (i.e. direct discharges).

  8. Comparing evaluation activities across multiple theories of practice.

    Science.gov (United States)

    Dillman, Lisa M

    2013-06-01

    This article compares and contrasts the evaluation activities described in Practical Participatory Evaluation (Cousins & Whitmore, 1998), Values-engaged Evaluation (Greene, 2005), and Emergent Realist Evaluation (Mark, Henry, & Julnes, 1998). Using the logic models developed to depict each of the three evaluation theories (Hansen, Alkin, & Wallace, 2013) as a starting point, both quantitative and qualitative analysis techniques are employed to discuss the similarities and differences across the practice prescriptions. The approaches are then described according to Miller's (2010) standards for empirical examinations of evaluation theory. Specifically, I offer speculation about their operational specificity and feasibility in practice. I argue that none of the models is completely specific, or wholly unique, and they all present challenges of adaptation into the field. However, the models each offer varying degrees of guidance and unique elements through their prescriptions.

  9. A Comparative Analysis of the Introduction of Travel Company In China and South America

    Institute of Scientific and Technical Information of China (English)

    彭红

    2013-01-01

      The introduction of Travel Company is a mirror which can display the culture of Travel Company and it is crucial when travelers make a choice. In order to make a better understanding of different introductions under different cultures, an analysis has been made between the introductions of two travel companies in China and South America respectively from the perspective of systemic-functional grammar(SFG).

  10. A COMPARATIVE STUDY ON THE PRICIPLE OF CELERITY IN ROMANIA AND THE UNITED STATES OF AMERICA

    Directory of Open Access Journals (Sweden)

    Steven BECKER

    2009-12-01

    Full Text Available This study deals with one of the most important fundamental rules of criminal trial, both in the United States of America and in Romania, namely the right of the person accused of committing a crime to have a trial within a reasonable time. As regards the legal system of the United States of America, the author approached the issue from the perspective of the Constitution of the United States of America, respectively reviewing the legislative system of the State of Illinois. The presentation of the case law in this field had an important role in this review. As regards the legal system of Romania, the efforts to amend the legislation in order to ensure a reasonable time for carrying out the criminal proceedings are obvious even if sometimes, in this way, the applicability of other fundamental principles, such as the principle of finding out the truth, is restricted. The differences existing between the two penal legal systems are also obvious, after reading this study.

  11. Modernization Theory Revisited: Latin America, Europe, and the U.S. in the Nineteenth and Early Twentieth Century

    Directory of Open Access Journals (Sweden)

    Fernando López-Alves

    2011-08-01

    Full Text Available Normal 0 21 false false false ES-CO X-NONE X-NONE MicrosoftInternetExplorer4 Theories of modernization, globalization, and dependency have assigned a clear role to Latin America: the region has been seen as dependent, exploited, and institutionally weak. In these theories, modernization and globalization are seen as forces generated elsewhere; the region, in these views, has merely tried to “adjust” and “respond” to these external influences. At best, it has imitated some of the political institutions of the core countries and, most of the times, unsuccessfully. While there is very good empirical evidence that supports these views, the essay argues that these theories need some correction. Latin America has been an innovator and a modernizer in its own right, especially in its cutting-edge design of the nation-state and in its modern conceptualization of the national community. Thus, the essay suggests that the region has not merely “adjusted” to modernization and globalization. Rather, the paper makes a case for a reinterpretation of the region’s role as a modernizer and an important contributor to the consolidation of the modern West.

  12. Comparative Study of Basins within Palaeogene Seaway in East China and Cretaceous Seaway in North America and Its Reservoir Significance

    Institute of Scientific and Technical Information of China (English)

    Wu Xiantao

    2007-01-01

    The well known Cretaceous seaway in North America was recognized in the middle of the last century and the Palaeogene seaway in East China was proposed by the author recently. The two seaways located on the opposite sides of North Pacific Ocean may be not a coincidence,and a comparative study was made in this paper. The results show that the two seaways inundated basins share several similarities particularly in basin origin,filling processes and reservoir facies. It is suggested that reservoir facies of estuarine sandstone and shelf bar sandstone related to sea level fluctuation,which are well developed in the Cretaceous seaway covered basins in North America might have been also developed here in Palaeogene seaway inundated basins in East China. Therefore it is worth paying more attention to finding these new reservoir facies on this side of the Pacific ocean. Evidences of sedimentology and ichnology indicate that good prospects are likely.

  13. Construction and harmonious development of urban-rural comparing financial systems based on comparative advantages theory

    Institute of Scientific and Technical Information of China (English)

    2008-01-01

    There exist differences between urban-rural financial systems. Generally, the development of urban financial industry has absolute advantages compared with rural financial industry. According to the Matthew Effect, the financial resources will flow into cities for higher benefit, so rural areas are unable to obtain absolute advantages. However, relative advantage theory of the comparative advantage theory provides an important way to observe respective advantage of both city and country. Therefore, there are comparative advantages for the development of financial industry in both urban and rural areas, The respective comparative advantages of urban-rural financial systems will supply greater efficiency than that in current dual pattern condition. Closely connected with China's financial development and reform and the fact of the recreation of urban-rural financial system, this paper tries to explain the comparative advantage of the urban-rural financial systems. The analysis of the comparative advantage between urban and rural finance is the clue for the boundary between urban-rural financial systems. This paper analyzes the current situation of urban.-rural financial system. Then it proposes some views and suggestions on how to develop and maintain these two systems as well as how to promote their coordinative development.

  14. Hydroclimatology and Comparative Soil Erosion in Eastern North America and Western Europe

    Science.gov (United States)

    Trimble, Stanley

    2010-05-01

    Extreme soil erosion and hydrologic disruption during the historical period of European agricultural occupance has been well documented for several regions of the US. Why was it so much more severe in the US than in Western Europe, the place of origin of most settlers? While choice of crops, agricultural practices, literacy, tenancy and economic factors were all contributing factors, differences of hydroclimatology, specifically rainfall intensities and amounts, also played a strong role. The climate of Western Europe is Marine West Coast (Koeppen:Cfb)while that of Eastern North America is Humid Subtropical or Humid Continental(Cfa, Dfa). While both regions are humid, Western Europe tends to have well-distributed rainfall occurring in moderate storms whereas Eastern North America has more erratic rainfall occurring in often intense storms. A comparison of long-term frequency-magnitude relationships of storms shows much lower values for Europe than for America. For example, a 100-year-24 hour event in the southeastern US is about 2-4 times as great as that in lowland England. European settlers simply did not have the agronomic and engineering techniques to deal with this excessive rainfall and such techniques were not developed in he US until the 1930s. . Agricultural fields in Britain generally require no engineering such as terracing, contour strip cropping, or even contour plowing to handle excess water but they are absolutely required in the eastern US. There is evidence that climate change will affect these features. For example, intense rainstorms in southern England in recent years have flooded roads (because the drains were inadequate), eroded fields (no conservation measures), and flooded villages (storm channels were too small).For future projects, Europeans may well have to look to the engineering practices developed and used in the eastern US.

  15. Control and Regulation of Private Security Providers in Latin America and the Caribbean: A Comparative Analysis

    Directory of Open Access Journals (Sweden)

    Francesca Caonero

    2014-05-01

    Full Text Available States and different international players have drafted legal frameworks to adequately regulate the phenomenon of privatization of security. Among these initiatives is the Project for a Possible Convention on Private Military and Security Companies, prepared with guidance from the United Nations Human Rights Council. The objective of this proposed convention is to provide a universal framework to regulate these companies.The United Nations Regional Center for Peace, Disarmament and Development in Latin America and the Caribbean (UNLIREC has studied this Proposed Convention and contrasted it with existing national regulations. The objective of this study is to identify whether and how States already comply with some of the provisions contained in this proposal.Based on the study of national private security law, UNLIREC has contrasted it with the Convention Proposal identifying the different items in this document that are referred to in the different national regulations from various countries in Latin America and the Caribbean.As a result of this legal contrast, it can be observed that laws in some States in the region include significant legal aspects put forth in the Proposed Convention, such as licenses, registry and training. Other States go beyond that, stipulating specific regulations that can be noted. Others, on the contrary, lack any provisions regarding control and regulation of private security providers.DOI: http://dx.doi.org/10.5377/rpsp.v1i1.1392

  16. One hundred years after Sigmund Freud's lectures in America: towards an integration of psychoanalytic theories and techniques within psychiatry.

    Science.gov (United States)

    Hoffman, Leon

    2010-12-01

    The impact of Sigmund Freud's lectures in America in 1909 is discussed. Some of the roots of psychoanalysis and their contemporary relevance are addressed: neurological ideas, the discussions of the sexologists, and the degeneration theories at the turn of the twentieth century. Factors which led to the dominance of psychoanalysis in psychiatry included, in particular, its arguments against the hopelessness of degeneracy theories;yet,by isolating itself from mainstream academic psychiatry and psychology,organized psychoanalysis itself contributed to its own subsequent marginalization. In order to re-integrate itself with mainstream psychiatry, psychoanalysis needs to appreciate the importance of systematic demonstrations of the therapeutic power of psychodynamic/psychoanalytic concepts and techniques when caring for individuals.

  17. CONTEMPORARY NATIONAL IDENTITIES COMPARED: THE CASES OF LATIN AMERICA AND EUROPE

    Directory of Open Access Journals (Sweden)

    Carlos Escudé

    2015-09-01

    Full Text Available Cuando cayó Roma, su imperio se segmentó en muchos sentidos, incluido el lingüístico. En las regiones romanizadas el latín vulgar evolucionó de manera diferente en cada poblado. En las regiones menos romanizadas renacieron las lenguas indígenas. Esto cambió con la introducción de la imprenta de caracteres móviles. Comenzó entonces un proceso inverso de amalgama de dialectos, que hizo posible el surgimiento de proto-nacionalidades lingüísticas. En cambio, cuando cayeron los imperios ibéricos la imprenta ya estaba establecida, de modo que en Iberoamérica no se generó una segmentación lingüística. Esta diferencia engendró una importante distancia cultural entre ambas regiones.Palabras clave: Identidad nacional, América latina, Europa, Argentina, Inmigración._________________________When Rome fell, its empire was segmented in many ways. In the Romanized regions, Vulgar Latin evolved differently in every town. In less Romanized regions, indigenous tongues were reborn. This process was reverted with the introduction of the printing press, which paved the way to an amalgam of dialects, leading to the emergence of linguistic proto nationalities. Contrariwise, when the Iberian empires fell, the printing press was already established. Consequently, in Iberian America there was no linguistic segmentation. This fundamental difference engendered a crucial civilizational distance.Keywords: National identity, Latin America, Europe, Argentina, Immigration.

  18. Quantitative ethnobotany of palms in northwestern South America: a comparative analysis in Amazonia, Andes and Chocó

    DEFF Research Database (Denmark)

    Cámara-Leret, Rodrigo

    and socioeconomic factors of informants is presented in Chapter 2. In Chapter 3, the field data were used to compare and validate the quality and coverage of palm ethnobotanical information from a literature review of works published over the last 60 years in the same region. The results of this study show...... the highest contribution to the use value of forests. In Chapter 5 the geographical distribution of traditional knowledge is investigated using field data and bibliographic information about the medicinal uses of palms in northwestern South America. Comparisons are made across four countries, 52 Amerindian...

  19. Why, indeed, in America? Theory, History, and the Origins of Modern Economic Growth

    OpenAIRE

    ROMER, Paul M.

    1996-01-01

    When they are used together, economic history and new growth theory give a more complete picture of technological change than either can give on its own. An empirical strategy for studying growth that does not use historical evidence is likely to degenerate into sterile model testing exercises. Historical analysis that uses the wrong kind of theory or no theory may not emphasize the lessons about technology that generalize. The complementarity between these fields is illustrated by an analysi...

  20. Three pioneers of comparative psychology in America, 1843-1890: Lewis H. Morgan, John Bascom, and Joseph LeConte.

    Science.gov (United States)

    Johnston, Timothy D

    2003-02-01

    Scientific comparative psychology in America dates from the mid-1890s, but there is a body of earlier literature on the topic, written during a period of theistic debates over Darwinian evolution. The anthropologist Lewis H. Morgan rejected instinct as an explanation of animal behavior in 1843 and defended the mental similarities between animals and humans, although he was not an evolutionist. John Bascom's textbook Comparative Psychology (1878) is the earliest American work to use that title, and its theistic approach anticipates some arguments found in much later evolutionary works. Beginning in 1860, the geologist Joseph LeConte, who is well known for defending the compatibility of evolution and religion, wrote several articles in which he outlined a comparative evolutionary approach to psychological problems. However, these writers did not establish a coherent research tradition and were ignored by the "New Psychologists" of the 1880s.

  1. A Comparative Study of Body Language in Classroom Teaching between China and America

    Institute of Scientific and Technical Information of China (English)

    张继贤

    2008-01-01

    Many researches show that the relationship between teachers and students cell be improved if teachers make effective age of body language to communicate.Besides,students'cognitive ability and efficiency in learning will be promoted.Studies on body language are beneficial not only to our linguistic theory hut also to our classroom teaching and learning.And the Successful teaching is such teaching which not only pays attention to verbal communication but also not overlooks communicative function of body language.

  2. Comparative Study on Moral Education Conducted in China and America%中美德育之比较研究

    Institute of Scientific and Technical Information of China (English)

    柏学芬

    2013-01-01

    Moral education refers to the education on ideology, politics and morality. In any society, moral education is critical. Both China and America place moral education at the top of school education as well as social development. It is necessary for us to compare the following elements such as aim, content, and approach of moral education conducted in China and America, so as to get some instructions to guide our moral education.%德育教育是指对受教育者进行思想政治和道德品质的教育。在任何社会中,德育都是至关重要的,中美两国也始终把德育放在学校教育和促进社会发展的首要位置。对中美两国德育的教育目标、教育内容、教育途径等的异同之处进行比较分析,并从中得到一些启示,对于指导我们的德育工作,是十分必要的。

  3. The filmic emotion. A comparative analysis of film theories

    Directory of Open Access Journals (Sweden)

    Imanol Zumalde-Arregi, Ph.D.

    2011-01-01

    Full Text Available This article tries to explain the origins of the filmic emotion. Due to the lack of a widely agreed idea about the way film texts play with the emotional world of the empirical spectator, this work outlines the diverse arguments and approaches through which film theory has tried to explain the catalogue of emotions that a film can provoke in the spectator. This review reveals a conflict between the theories oriented to the spectator and context, and the theories focused on the text. There are, in fact, two approaches to evaluate the emotional effects provoked by films: the cultural studies approach, which is based on pragmatics and gender oriented theories, and focuses on the social and subjective conditions through which cinema is experienced, and the approach of structural semiotics and cognitive theory, which focuses on the way a film text tries to direct the spectator’s emotional experience. In the middle of these two approaches, the psychoanalytical theory conceives the filmic experience as a simulation of daily life.

  4. General Theory versus ENA Theory: Comparing Their Predictive Accuracy and Scope.

    Science.gov (United States)

    Ellis, Lee; Hoskin, Anthony; Hartley, Richard; Walsh, Anthony; Widmayer, Alan; Ratnasingam, Malini

    2015-12-01

    General theory attributes criminal behavior primarily to low self-control, whereas evolutionary neuroandrogenic (ENA) theory envisions criminality as being a crude form of status-striving promoted by high brain exposure to androgens. General theory predicts that self-control will be negatively correlated with risk-taking, while ENA theory implies that these two variables should actually be positively correlated. According to ENA theory, traits such as pain tolerance and muscularity will be positively associated with risk-taking and criminality while general theory makes no predictions concerning these relationships. Data from Malaysia and the United States are used to test 10 hypotheses derived from one or both of these theories. As predicted by both theories, risk-taking was positively correlated with criminality in both countries. However, contrary to general theory and consistent with ENA theory, the correlation between self-control and risk-taking was positive in both countries. General theory's prediction of an inverse correlation between low self-control and criminality was largely supported by the U.S. data but only weakly supported by the Malaysian data. ENA theory's predictions of positive correlations between pain tolerance, muscularity, and offending were largely confirmed. For the 10 hypotheses tested, ENA theory surpassed general theory in predictive scope and accuracy.

  5. Willingness to Share Knowledge Compared with Selected Social Psychology Theories

    Directory of Open Access Journals (Sweden)

    Ewa Krok

    2013-03-01

    Full Text Available Knowledge is one of the key determinants in the growth and competitiveness of modern enterprises. Hence, it is essential to analyse the factors that induce employees to exchange knowledge. The problem of sharing an intangible asset — in this case, the knowledge of individuals — can be viewed from many perspectives: psychological, economic, organisational, sociological and technological. The aim of this article is to explore selected social psychology theories and to analyse the incentives for people to share knowledge. The article attempts to interpret the willingness to share knowledge through the Social Exchange Theory, the Social Impact Theory, the Theory of Reasoned Action and the Theory of Planned Behaviour. This analysis leads to the following conclusions: •we share our knowledge and expect a return; •we share our knowledge when we believe that the benefits of this action outweigh the costs; •we are pushed to share knowledge by the power of empathy; •workers’ willingness to share knowledge is influenced by three social processes: subordination, identification and internalisation; •the decision to share knowledge is preceded by an intention formed under the influence of an individual attitude towards that behaviour, subjective norms and perceived behavioural control; and •the decision to share knowledge is also influenced by additional components, including the knowledge and skills to implement this behaviour, environmental limitations, behavioural emphasis and habits.

  6. A Practice-Based Theory of Professional Education: Teach For America's Professional Development Model

    Science.gov (United States)

    Gabriel, Rachael

    2011-01-01

    In 1999, Ball and Cohen proposed a practice-based theory of professional education, which would end inadequate professional development efforts with a more comprehensive approach. Their work has been referenced over the past decade, yet there have been limited attempts to actualize their ideals and research their implications. In this article, I…

  7. The historical evolution of inequality in Latin America : a comparative analysis, 1870-2000

    NARCIS (Netherlands)

    Frankema, E.H.P.

    2008-01-01

    Current levels of income and asset inequality in Latin American countries are, from a global comparative perspective, extraordinary high. This thesis explores the roots of Latin American economic inequality in the colonial era and, subsequently, focuses on the developments in the period 1870-2000. D

  8. A comparative Study of Cultural Differences in business Communication between China and America

    Institute of Scientific and Technical Information of China (English)

    张桂玲

    2011-01-01

    This thesis reveals deep cultural differences between Chinese and Americans,through a thorough comparative analysis of the respective sources:collectivism of Chinese and individualism of Americans.Besides,it suggests many practical guidelines and information on how to conduct negotiations with Americans,to avoid cultural conflicts and to get a win-win result in the economic globalization.

  9. The Pedagogical Theories of A. S. Makarenko: A Comparative Analysis.

    Science.gov (United States)

    Caskey, Bob

    1979-01-01

    Describes the career and methods of A. S. Makarenko, revered in the Soviet Union for his successful work with children abandoned in the Civil War (1918-1921). Evolution of his theories in later Soviet education is traced and comparisons made with institutions for homeless or delinquent youth in other countries. (SJL)

  10. Writer, Reader, Critic: Comparing Critical Theories as Discourse.

    Science.gov (United States)

    de Beaugrande, Robert

    1984-01-01

    Attempts to show how each of three influential critical theories--deconstructionism, reader response criticism, and authorial intention--implies a particular view of how literary discourse is or should be processed and indicates that each view is in part justified, but not to the extent claimed by the critics themselves. (CRH)

  11. Creating a "Latino" Artist Identity in-between Sweden and Latin America - A Comparative Approach

    Directory of Open Access Journals (Sweden)

    Susan Lindholm

    2015-11-01

    Full Text Available This article engages in a close comparative reading of the creation of a “Latino” artist identity by two Swedish artists – Fredrik FreddeRico Ekelund and Rodrigo Rodde Bernal. By focusing on the theoretical concept of white Swedish masculin- ity, it aims to deepen the understanding of how such identities are created within and against the background of specific historical contexts and locations.

  12. Comparing Integral and Incidental Emotions: Testing Insights From Emotions as Social Information Theory and Attribution Theory.

    Science.gov (United States)

    Hillebrandt, Annika; Barclay, Laurie J

    2017-01-05

    Studies have indicated that observers can infer information about others' behavioral intentions from others' emotions and use this information in making their own decisions. Integrating emotions as social information (EASI) theory and attribution theory, we argue that the interpersonal effects of emotions are not only influenced by the type of discrete emotion (e.g., anger vs. happiness) but also by the target of the emotion (i.e., how the emotion relates to the situation). We compare the interpersonal effects of emotions that are integral (i.e., related to the situation) versus incidental (i.e., lacking a clear target in the situation) in a negotiation context. Results from 4 studies support our general argument that the target of an opponent's emotion influences the degree to which observers attribute the emotion to their own behavior. These attributions influence observers' inferences regarding the perceived threat of an impasse or cooperativeness of an opponent, which can motivate observers to strategically adjust their behavior. Specifically, emotion target influenced concessions for both anger and happiness (Study 1, N = 254), with perceived threat and cooperativeness mediating the effects of anger and happiness, respectively (Study 2, N = 280). Study 3 (N = 314) demonstrated the mediating role of attributions and moderating role of need for closure. Study 4 (N = 193) outlined how observers' need for cognitive closure influences how they attribute incidental anger. We discuss theoretical implications related to the social influence of emotions as well as practical implications related to the impact of personality on negotiators' biases and behaviors. (PsycINFO Database Record

  13. Social donation and university development: a comparative analysis between China's and America's endowment for public education

    Institute of Scientific and Technical Information of China (English)

    Luo Gong-li; Yang Xuan-liang; Li Huai-zu

    2006-01-01

    Social donation is a means for individuals,government organizations,and non-government organizations (NGOs) to provide public products and services for society.Seeking social donation is vital in the improvement of the university.This paper probes into the relationship between social donation and university development by comparing social donation levels and practices in China with those in the U.S.The main reasons why social donations in Chinese universities are relatively low are as follows:(1) independent NGOs have not been formed;(2) the system and mechanism of social donation are not perfect,and (3) many restricting factors of social culture still exist in China.

  14. Comparing lattice Dirac operators with Random Matrix Theory

    CERN Document Server

    Farchioni, F; Lang, C B

    2000-01-01

    We study the eigenvalue spectrum of different lattice Dirac operators (staggered, fixed point, overlap) and discuss their dependence on the topological sectors. Although the model is 2D (the Schwinger model with massless fermions) our observations indicate possible problems in 4D applications. In particular misidentification of the smallest eigenvalues due to non-identification of the topological sector may hinder successful comparison with Random Matrix Theory (RMT).

  15. Willingness to Share Knowledge Compared with Selected Social Psychology Theories

    OpenAIRE

    Ewa Krok

    2013-01-01

    Knowledge is one of the key determinants in the growth and competitiveness of modern enterprises. Hence, it is essential to analyse the factors that induce employees to exchange knowledge. The problem of sharing an intangible asset — in this case, the knowledge of individuals — can be viewed from many perspectives: psychological, economic, organisational, sociological and technological. The aim of this article is to explore selected social psychology theories and to analyse the incentives for...

  16. A Brief Comparative Study of the Translation Theories by Nida and New-mark

    Institute of Scientific and Technical Information of China (English)

    李奕

    2016-01-01

    Nida and Newmark are the two of the most distinguished contemporary translation theorist in the west. A brief compar-ative study was made on their translation theories by giving a general survey of their life, then a brief introduction of their theo-ries and comparing the differences.

  17. Environment and Citizenship in Latin America: A New Paradigm for Theory and Practice

    Directory of Open Access Journals (Sweden)

    Alex Latta and Hannah Wittman

    2010-10-01

    Full Text Available As a reflection of the ecological pressures associated with rapid modernization and globalization, the environment has become an enduring theme of public debate and protest in Latin America. Over the past decade, scholars have made increasing connections between such debate and a range of questions related to citizenship. Meanwhile, a discourse of ‘environmental citizenship’ has a growing prevalence in policy across the region. While these developments echo similar political and academic trends in the Global North, the Latin American context demands a unique set of theoretical and methodological approaches to studying the intersection of ecology and citizenship, sensitive to the specific historical, cultural, and ecological character of the region. We outline a research agenda spanning questions of land, identity and citizenship; environmental justice and de-colonization; social subjectivity and the state; urban natures and citizens; and the materiality/subjectivity of nature. This array of approaches points to a more acute conceptualization of citizenship, both in terms of its understanding of politics and its treatment of ecology; it also offers a point of view that recognizes citizens and natures as dynamic realities, which mutually condition each other in a sphere of ongoing contest.   Resumen: Medio ambiente y ciudadanía en América Latina: un nuevo paradigma para la teoría y práctica Como reflexión de los impactos ecológicos asociados con la modernización rápida y la globalización, el medio ambiente se ha transformado en un tema de debate y protesta constante en Latinoamérica. Durante la última década, un número creciente de académicos ha observado conexiones entre tal debate y una gama de asuntos relacionados con la ciudadanía. Al mismo tiempo, un discurso de ‘ciudadanía ambiental’ ha alcanzado una prevalencia notable en las políticas públicas de la región. Aunque estos acontecimientos reflejan de una tendencia

  18. Comparing Predictions and Outcomes : Theory and Application to Income Changes

    NARCIS (Netherlands)

    Das, J.W.M.; Dominitz, J.; van Soest, A.H.O.

    1997-01-01

    Household surveys often elicit respondents' intentions or predictions of future outcomes. The survey questions may ask respondents to choose among a selection of (ordered) response categories. If panel data or repeated cross-sections are available, predictions may be compared with realized outcomes.

  19. Gender and causal concepts: Implications for comparative theory building

    NARCIS (Netherlands)

    Mazur, A.G.; Spierings, C.H.B.M.

    2016-01-01

    Clear conceptualization should be at the core of every comparative study. Gender scholars have a long history of challenging the public/private divide in conventional notions of the political and laying bare the gendered or androcentric character of established concepts such as welfare states (Sains

  20. Metal catalyzed ethylene epoxidation: A comparative density functional theory study

    Institute of Scientific and Technical Information of China (English)

    Ruipeng Ren; Yongkang Lü; Xianyong Pang; Guichang Wang

    2011-01-01

    Ethylene epoxidation on Ag(111), Pt(111), Rh(111) and Mo(100) has been studied by density functional theory (DFT) calculations. The results show that the adsorption energies of possible adsorbed species involved in the ethylene epoxidation increase in the order: Ag<Pt<Rh<Mo, and the activation energies of the formation of epoxide (EtO) and acetaldehyde (Ac) follow the same order. Moreover, it is found that the smallest difference in the activation energies between EtO formation and Ac formation is shown on Ag. These results indicate that the metallic Ag shows the highest between activity and selectivity for ethylene epoxidation among the studied metal surfaces. Perhaps, the stability of OMME intermediate is the crucial factor in controlling the activity and selectivity. And the stronger the binding of OMME, the lower the activity and selectivity are. In addition, the relationships between the reaction enthalpy and activation energy on these four metal surfaces are investigated,and it is found that such a correlation is only applied for OMME(a) → EtO(a) and OMME(a) → Ac(a), while invalid for the case of C2H4(a) +O(a) → OMME(a).

  1. Internationalization of Higher Education in the United States of America and Europe: A Historical, Comparative, and Conceptual Analysis. Greenwood Studies in Higher Education.

    Science.gov (United States)

    de Wit, Hans

    This book provides a critical tour of the internationalization of higher education, which has become an important issue in the development of higher education. Part 1, "The Historical Development of the Internationalization of Higher Education: A Comparative Study of the United States of America and Europe," contains: (1) "The Historical Context…

  2. Dialogue, Eurocentrism, and Comparative Political Theory: A View from Cross-Cultural Intellectual History.

    Science.gov (United States)

    Shogimen, Takashi

    2016-01-01

    Comparative political theory is an emerging sub-field of political theory; it is a response to the dissatisfaction with the prevalent Eurocentric mode of political theorizing in the age of globalization. A methodological characteristic of comparative political theory is cross-cultural engagement through dialogue with foreign political ideas. The present paper argues that the dialogical mode of cross-cultural engagement is distinctively European. While the dialogical engagement with foreign worldviews constitutes a mainstream of the European literary tradition, it is largely absent, for example, from the Japanese counterpart. Despite its anti-Eurocentric motivations, comparative political theory is methodologically rooted in the European tradition.

  3. Issues in biomedical statistics: comparing means under normal distribution theory.

    Science.gov (United States)

    Ludbrook, J

    1995-04-01

    The test used most commonly in biomedical research to compare means when measurements have been made on a continuous scale is Student's t-test, followed closely by various forms of analysis of variance. These tests require that defined populations have been randomly sampled, but there are other assumptions about populations and samples that must be satisfied. These include: (i) normality of the population distributions; (ii) equal variance in those normal populations; and (iii) statistical independence of the samples. This review offers advice to investigators on how to recognize breaches of the assumptions of normality and equality of variance, and how to deal with them by modifying the usual t-test or by transforming the experimental data. The sample-size also has an important bearing on statistical inferences: (i) if it is too small, the risk of Type II error is inflated; and (ii) inequality of sample size exaggerates the effects of inequality of variance. The assumption of independence is breached if repeated measurements are made serially rather than in random order, but adjustments to analysis of variance can be made to correct for the inflated risk of Type I error. The review also considers the problem of making multiple comparisons of means, and recommends solutions.

  4. Comparing hiking, mountain biking and horse riding impacts on vegetation and soils in Australia and the United States of America.

    Science.gov (United States)

    Pickering, Catherine Marina; Hill, Wendy; Newsome, David; Leung, Yu-Fai

    2010-01-01

    Hiking, horse riding and mountain biking are popular in protected areas in Australia and the United States of America. To help inform the often contentious deliberations about use of protected areas for these three types of activities, we review recreation ecology research in both countries. Many impacts on vegetation, soils and trails are similar for the three activities, although there can be differences in severity. Impacts include damage to existing trails, soil erosion, compaction and nutrification, changes in hydrology, trail widening, exposure of roots, rocks and bedrock. There can be damage to plants including reduction in vegetation height and biomass, changes in species composition, creation of informal trails and the spread of weeds and plant pathogens. Due to differences in evolutionary history, impacts on soil and vegetation can be greater in Australia than in the USA. There are specific social and biophysical impacts of horses such as those associated with manure and urine, grazing and the construction and use of tethering yards and fences. Mountain bike specific impacts include soil and vegetation damage from skidding and the construction of unauthorised trails, jumps, bridges and other trail technical features. There are gaps in the current research that should be filled by additional research: (1) on horse and mountain bike impacts to complement those on hiking. The methods used need to reflect patterns of actual usage and be suitable for robust statistical analysis; (2) that directly compares types and severity of impacts among activities; and (3) on the potential for each activity to contribute to the spread of weeds and plant pathogens. Additional research will assist managers and users of protected areas in understanding the relative impacts of these activities, and better ways to manage them. It may not quell the debates among users, managers and conservationists, but it will help put it on a more scientific footing.

  5. Comparing Three of the Leadership Theories: Leader- Member Exchange Theory,transformational Leadership and Team Leadership

    Institute of Scientific and Technical Information of China (English)

    王子涵

    2013-01-01

    Leadership is a complex process.It is one of the most researched areas around the world.It has gained importance in every walk of life from politics to business and from education to social organizations.According to the study of"Leadership in Adult Education Venues",here has a much more clear recognition of leadership:leadership is a process whereby an individual influences a group of individuals to achieve a common goal.There are many approaches of leadership throughout the study of this class,the three theories of leadership I choose to describe in this paper are:Leader-Member Exchange(LMX)Theory,Transformational Leadership,and Team Leadership.

  6. Comparism of Computer Based Yield Line Theory with Elastic Theory and Finite Element Methods for Solid Slabs

    Directory of Open Access Journals (Sweden)

    J.O. Akinyele

    2011-02-01

    Full Text Available The complexity and conservative nature of the Yield Line Theory and its being an upper bound theory have made many design engineers to jettison the use of the analytical method in the analysis of slabs. Before now, the method has basically been a manual or hand methodwhich some engineers did not see a need for its use since there are many computer based packages in the analysis and design of slabs and other civil engineering structures. This paper presents a computer program that has adopted the yield line theory in the analysis of solid slabs. Two rectangular slabs of the same depth but differentdimensions were investigated. The Yield Line Theory was compared with two other analytical methods namely, Finite Element Method and Elastic Theory Method. The results obtained for a two-way spanning slab showed that the yield line theory is truly conservative, butincreasing the result by 25% caused the moment obtained to be very close to the results of the other two methods. Although it was still conservative, the check for deflections showed that it is reliable and economical in terms of reinforcement provision. For a one way spanning slab the results without any increment falls in between the two other methods with the Elastic method giving a conservative results. The paper concludes that the introduction of a computer-based yield line theory program will make the analytical method acceptable to design engineers in the developing countries of the world.

  7. Promoting Social Equity, Diversity, and Inclusion through Accreditation: Comparing National and International Standards for Public Affairs Programs in Latin America

    Science.gov (United States)

    Rubaii, Nadia

    2016-01-01

    Purpose: This purpose of this study is to examine the extent to which accreditation of public affairs programs can be a tool to advance social equity, diversity, and inclusion. The paper is presented in the context of the widespread acceptance of the importance of addressing social inequalities in Latin America and the critical role that public…

  8. Comparing emission inventories and model-ready emission datasets between Europe and North America for the AQMEII project

    NARCIS (Netherlands)

    Pouliot, G.; Pierce, T.; Denier van der Gon, H.; Schaap, M.; Moran, M.; Nopmongcol, U.

    2012-01-01

    This paper highlights the similarities and differences in how emission inventories and datasets were developed and processed across North America and Europe for the Air Quality Model Evaluation International Initiative (AQMEII) project and then characterizes the emissions for the two domains. We foc

  9. The integration processes in Asia and Latin America in the last two decades: An necessary comparative analysis

    Directory of Open Access Journals (Sweden)

    Fernando Alfonso Rivas Mira

    2012-09-01

    Full Text Available In this article the authors analyzed the integration process in Asian and Latin America countries in the last decades, empathizing that such process, are essentially different, because as historic fact as economic and political and cultural facts. Whereas Latin America region, ballast load, because to its colonial heritage from Spain and ankylosed rules system, in Asia region, the countries, equally its heritage of the European countries but its moderns system of rules, its process of integration between themselves and to international economy explain its different results. Also, actually both regions are converging in the international process of economic integration, particularly in the Asia Pacific Cooperation where the most important countries of such region, search passing its relations to other level of to understanding, so that must leave.

  10. Alternative media in a digital era: Comparing news and information use among activists in the United States and Latin America

    OpenAIRE

    Harlow, S.; Harp, D.

    2013-01-01

    As activists increasingly use the Internet to bypass traditional media gatekeepers, disseminate their own messages, and mobilize protests, this study explores how activists in the United States and Latin America view activism in relation to mainstream and alternative media, particularly online media. Results from a quantitative and qualitative survey show activists distrust mainstream, corporate media and most frequently get their news online. Also, despite the digital divide and concerns abo...

  11. A comparative analysis between the relation of income distribution and economic regional integration in East Asia and Latin America

    Directory of Open Access Journals (Sweden)

    Ángela Jeaneth Ospina Enciso

    2015-12-01

    Full Text Available This paper analyses the relationship between inequality and de facto regional economic integration during the last two decades in Latin America and East Asia Pacific regions, focusing on intra-regional exports. Globalization has been considered as a driving of inequality, although export-led growth models are associated with high economic growth rates. Export-led growth models have been more dynamic in East Asia than in Latin America, through the development of supply chain networks of intermediate and final goods. Research questions explore the relation between inequality and patterns of de facto intra-regional trade. Empirical analysis uses a fixed effects panel data with Heteroskedasticity and Autocorrelation Consistent (HAC covariance matrix. Results showed that increments in regional intra-trade are associated with reductions of inequality, more in East Asia Pacific than in Latin America. The contribution of this paper is the introduction of intra-regional trade as a new factor that is negatively associated with inequality.

  12. Comparative evaluation of the IPCC AR5 CMIP5 versus the AR4 CMIP3 model ensembles for regional precipitation and their extremes over South America

    Science.gov (United States)

    Tolen, J.; Kodra, E. A.; Ganguly, A. R.

    2011-12-01

    The assertion that higher-resolution experiments or more sophisticated process models within the IPCC AR5 CMIP5 suite of global climate model ensembles improves precipitation projections over the IPCC AR4 CMIP3 suite remains a hypothesis that needs to be rigorously tested. The questions are particularly important for local to regional assessments at scales relevant for the management of critical infrastructures and key resources, particularly for the attributes of sever precipitation events, for example, the intensity, frequency and duration of extreme precipitation. Our case study is South America, where precipitation and their extremes play a central role in sustaining natural, built and human systems. To test the hypothesis that CMIP5 improves over CMIP3 in this regard, spatial and temporal measures of prediction skill are constructed and computed by comparing climate model hindcasts with the NCEP-II reanalysis data, considered here as surrogate observations, for the entire globe and for South America. In addition, gridded precipitation observations over South America based on rain gage measurements are considered. The results suggest that the utility of the next-generation of global climate models over the current generation needs to be carefully evaluated on a case-by-case basis before communicating to resource managers and policy makers.

  13. Comparative assessment of status and opportunities for carbon Dioxide Capture and storage and Radioactive Waste Disposal In North America

    Energy Technology Data Exchange (ETDEWEB)

    Oldenburg, C.; Birkholzer, J.T.

    2011-07-22

    Aside from the target storage regions being underground, geologic carbon sequestration (GCS) and radioactive waste disposal (RWD) share little in common in North America. The large volume of carbon dioxide (CO{sub 2}) needed to be sequestered along with its relatively benign health effects present a sharp contrast to the limited volumes and hazardous nature of high-level radioactive waste (RW). There is well-documented capacity in North America for 100 years or more of sequestration of CO{sub 2} from coal-fired power plants. Aside from economics, the challenges of GCS include lack of fully established legal and regulatory framework for ownership of injected CO{sub 2}, the need for an expanded pipeline infrastructure, and public acceptance of the technology. As for RW, the USA had proposed the unsaturated tuffs of Yucca Mountain, Nevada, as the region's first high-level RWD site before removing it from consideration in early 2009. The Canadian RW program is currently evolving with options that range from geologic disposal to both decentralized and centralized permanent storage in surface facilities. Both the USA and Canada have established legal and regulatory frameworks for RWD. The most challenging technical issue for RWD is the need to predict repository performance on extremely long time scales (10{sup 4}-10{sup 6} years). While attitudes toward nuclear power are rapidly changing as fossil-fuel costs soar and changes in climate occur, public perception remains the most serious challenge to opening RW repositories. Because of the many significant differences between RWD and GCS, there is little that can be shared between them from regulatory, legal, transportation, or economic perspectives. As for public perception, there is currently an opportunity to engage the public on the benefits and risks of both GCS and RWD as they learn more about the urgent energy-climate crisis created by greenhouse gas emissions from current fossil-fuel combustion practices.

  14. A Direct Test of the Theory of Comparative Advantage: The Case of Japan.

    Science.gov (United States)

    Bernhofen, Daniel M.; Brown, John C.

    2004-01-01

    We exploit Japan's sudden and complete opening up to international trade in the 1860s to test the empirical validity of one of the oldest and most fundamental propositions in economics: the theory of comparative advantage. Historical evidence supports the assertion that the characteristics of the Japanese economy at the time were compatible with…

  15. Theory for Explaining and Comparing the Dynamics of Education in Transitional Processes

    Science.gov (United States)

    van der Walt, Johannes L.

    2016-01-01

    Countries all over the world find themselves in the throes of revolution, change, transition or transformation. Because of the complexities of these momentous events, it is no simple matter to describe and evaluate them. This paper suggests that comparative educationists apply a combination of three theories as a lens through which such national…

  16. Teaching through Research--Research through Teaching: Comparing Scientific and Subjective Theories

    Science.gov (United States)

    Patry, Jean-Luc

    2014-01-01

    Teaching through research has a great potential for Master's studies. The paper presents how this has been done in a particular case, comparing scientific and subjective theories, and how this course was simultaneously used to do research about this topic. The course proved to be a win-win-situation for the students and for the teacher/researcher.…

  17. Forcing a unitary transformation by an external field comparing two approaches based on optimal control theory

    CERN Document Server

    Palao, J P; Palao, Jose P.; Kosloff, Ronnie

    2002-01-01

    A quantum gate is realized by specific unitary transformations operating on states representing qubits. Considering a quantum system employed as an element in a quantum computing scheme, the task is therefore to enforce the pre-specified unitary transformation. This task is carried out by an external time dependent field. Optimal control theory has been suggested as a method to compute the external field which alters the evolution of the system such that it performs the desire unitary transformation. This study compares two recent implementations of optimal control theory to find the field that induces a quantum gate. The first approach is based on the equation of motion of the unitary transformation. The second approach generalizes the state to state formulation of optimal control theory. This work highlight the formal relation between the two approaches.

  18. Verso una globalizzazione antiegemonica. L’America Latina e la teoria critica di Boaventura de Sousa Santos - Toward an anti-hegemonic globalization. Latin America and the critical theory of Boaventura de Sousa Santos

    Directory of Open Access Journals (Sweden)

    Marta Vignola

    2014-12-01

    Full Text Available One of the current debates revolves around the question of determining whether there are one or several globalisations. For the great majority of authors there is only one globalisation, neo-liberal capitalist globalisation, and it does not, therefore, make sense to distinguish between hegemonic and antihegemonic globalisation. In the field of transnational social and cultural practices the anti-hegemonic transformation consists, according to Boaventura de Sousa Santos and his critical theory of the epistemology of the South, in the construction of an emancipatory multiculturalism. Multiculturalism overlaps with the democratic definition of reciprocal rules of recognition between distinct identities and cultures. Our hypothesis is that the process of political construction of alternatives is particularly evident in Latin America movements and recent political experiences. These new political practices are analyzed against the theoretical background of Sousa Santos’ approach, therefore not only as practical antagonist experiences, but as emancipation methods which, as they have not been foreseen by the great theoretical tradition of the Eurocentric left, may actually contradict it and put it into a theoretical as well as political crisis.

  19. Comparative Study of Chinese Bible Translations from the Perspective of Skopos Theory

    Institute of Scientific and Technical Information of China (English)

    李智勇

    2013-01-01

    It is universally acknowledged that the holy Bible has played a significant role in both Christianity and literature field. In China, translating Bible also enjoyed a long history and so far over 30 Chinese Bible translations have been produced. Along with age-old Bible translating practices in China come with varied Chinese Bible versions, due to the fact that different transla⁃tors adopt different translational skopos. Skpos theory, mainly coined by Vermeer, has been quite popular in recent years. This purpose-based translation theory has ignited paradigm shift in translation study from the source text to target text. This paper will be attempting to conduct a comparative study of two most popular modern Chinese Bible versions, CUV (Chinese Union Ver⁃sion) and TCV (Today’s Chinese Version). By comparing two versions of the same extract, this article aims to apply Skopos theo⁃ry into analyzing each translator’s decisions and strategies from domestication and foreignization.

  20. Sub Angstrom imaging of dislocation core structures: How well areexperiments comparable with theory?

    Energy Technology Data Exchange (ETDEWEB)

    Kisielowski, C.; Freitag, B.; Xu, X.; Beckman, S.P.; Chrzan, D.C.

    2005-12-16

    During the past 50 years Transmission Electron Microscopy (TEM) has evolved from an imaging tool to a quantitative method that approaches the ultimate goal of understanding the atomic structure of materials atom by atom in three dimensions both experimentally and theoretically. Today's TEM abilities are tested in the special case of a Ga terminated 30 degree partial dislocation in GaAs:Be where it is shown that a combination of high-resolution phase contrast imaging, Scanning TEM, and local Electron Energy Loss Spectroscopy allows for a complete analysis of dislocation cores and associated stacking faults. We find that it is already possible to locate atom column positions with picometer precision in directly interpretable images of the projected crystal structure and that chemically different elements can already be identified together with their local electronic structure. In terms of theory, the experimental results can be quantitatively compared with ab initio electronic structure total energy calculations. By combining elasticity theory methods with atomic theory an equivalent crystal volume can be addressed. Therefore, it is already feasible to merge experiments and theory on a picometer length scale. While current experiments require the utilization of different, specialized instruments it is foreseeable that the rapid improvement of electron optical elements will soon generate a next generation of microscopes with the ability to image and analyze single atoms in one instrument with deep sub Angstrom spatial resolution and an energy resolution better than 100 meV.

  1. To Split or to Unify?—A Comparative Study on Functional Equivalence Translation Theory and Relevance Translation Theory

    Institute of Scientific and Technical Information of China (English)

    刘静; 孔燕

    2012-01-01

      Functional equivalence, a focus in the translation studies, has been bombarded with numerous criticisms. Mean⁃while, relevance translation theory, proposed by Ernst-August Gutt, offers a united theoretical framework for translation stud⁃ies. The development of the translation theories does not rely on the appearance of a brand-new theory, but on the successful connection among various theories. To split or to unify, it is a question and it will direct the further development of transla⁃tion studies. Analyzing the similarities and differences between these two theories, the author are striving for a unity of them and striking a better way to approach translation studies.

  2. Bridging the Divide: A Comparative Analysis of Articles in Higher Education Journals Published inside and outside North America

    Science.gov (United States)

    Tight, Malcolm

    2007-01-01

    Articles published in three leading North American higher education journals during the year 2000 are compared with those published in three leading, English language, non-North American higher education journals (and with a larger sample of fourteen such journals). The comparison focuses on the location of their authors, the themes researched,…

  3. GENDER BIAS AND CHILD LABOR: SPAIN, LATIN AMERICA AND DEVELOPING COUNTRIES FROM A LONG-TERM COMPARATIVE PERSPECTIVE

    Directory of Open Access Journals (Sweden)

    Enriqueta Camps-Cura

    2016-11-01

    Full Text Available In this paper, several historical scenarios are compared, each very different to the each other in both institutional and geographical terms. What they have in common is the relative poverty of part of the population. This approach allows combining micro historical analysis (in the Catalan case with a macro comparative approach in developing countries. Through these micro historical and macro regression analyses we obtain the result that adult women’s skills and real wages are a key factor when we wish to explain the patterns of child labor. While female real wages increased sharply in 19th century Catalonia, we obtain very different results in the case of developing countries. This gender bias is identified as one of the very significant effects of human capital which held by women and helps to explain why in some cases children continue to work and also why some parts of the world continue to be poor according to our regression analysis.

  4. Globalization and culture shaping the gender gap: A comparative analysis of urban Latin America and East Asia (1970 - 2000)

    OpenAIRE

    Camps, Enriqueta

    2009-01-01

    In this paper we present: 1. The available data on comparative gender inequality at the macroeconomic level and 2. Gender inequality measures at the microeconomic and case study level. We see that market openness has a significant effect on the narrowing of the human capital gender gap. Globalization and market openness stand as factors that improve both the human capital endowments of women and their economic position. But we also see that the effects of culture and religious beliefs are ver...

  5. Making Theory I. Producing Physics And Physicists In Postwar America. Ii. Post-inflation Reheating In An Expanding Universe

    CERN Document Server

    Kaiser, D I

    2000-01-01

    This dissertation examines the reinvention of theoretical physics in the United States through pedagogical means after World War II. Physics graduate student enrollments ballooned immediately after the war. The unprecedented enrollments forced questions of procedures and standards for graduate training as never before. At the same time, the crush of numbers spurred an increased bureaucratization and, at least some American physicists feared, a different system of values than what had prevailed during the quieter interwar period. Out of these new bureaucratic and pedagogical developments, theoretical physics became a recognized specialty within American physics, surrounded by new ideas about what theory was for and how students should be trained to do it. Two case studies focus on developments within theoretical physics after the war, using pedagogy as a lens through which to understand the links between practices and practitioners. Within nuclear and particle physics, as Part II discusses, young graduate stud...

  6. Properties of the vacuum in models for QCD. Holography vs. resummed field theory. A comparative study

    Energy Technology Data Exchange (ETDEWEB)

    Zayakin, Andrey V.

    2011-01-17

    This Thesis is dedicated to a comparison of the two means of studying the electromagnetic properties of the QCD vacuum - holography and resummed field theory. I compare two classes of distinct models for the dynamics of the condensates. The first class consists of the so-called holographic models of QCD. Based upon the Maldacena conjecture, it tries to establish the properties of QCD correlation functions from the behavior of classical solutions of field equations in a higher-dimensional theory. Yet in many aspects the holographic approach has been found to be in an excellent agreement with data. These successes are the prediction of the very small viscosity-to-entropy ratio and the predictions of meson spectra up to 5% accuracy in several models. On the other hand, the resummation methods in field theory have not been discarded so far. Both classes of methods have access to condensates. Thus a comprehensive study of condensates becomes possible, in which I compare my calculations in holography and resummed field theory with each other, as well as with lattice results, field theory and experiment. I prove that the low-energy theorems of QCD keep their validity in holographic models with a gluon condensate in a non-trivial way. I also show that the so-called decoupling relation holds in holography models with chiral and gluon condensates, whereas this relation fails in the Dyson-Schwinger approach. On the contrary, my results on the chiral magnetic effect in holography disagree with the weak-field prediction; the chiral magnetic effect (that is, the electric current generation in a magnetic field) is three times less than the current in the weakly-coupled QCD. The chiral condensate behavior is found to be quadratic in external field both in the Dyson-Schwinger approach and in holography, yet we know that in the exact limit the condensate must be linear, thus both classes of models are concluded to be deficient for establishing the correct condensate behaviour in the

  7. Comparative analysis of integrated water resources management models and instruments in South America: case studies in Brazil and Colombia

    Directory of Open Access Journals (Sweden)

    Raquel dos Santos

    2013-04-01

    Full Text Available Brazil and Colombia are rich in terms of water supply, ranking as world leaders in the supply of water resources. Despite this, both countries have problems of relative scarcity of this vital liquid in highly populated areas with much economic activity. Establishing policies and legal environmental standards has long tradition in both countries. However, although there are provisions and instruments for water management at the water basin level, these do not necessarily follow the conceptual development of integrated water resources management (IWRM. As a result, the two countries have partially implemented IWRM elements but with different characteristics both in its structure and instrumentality. In Colombia the State Government, through the Regional Environmental Corporations, implements IWRM (concessions, fee for water use, pollution rate, basin plans, etc, with no formal involvement of civil society management. In Brazil, however, IWRM management structure and tools are decentralized and participatory, as are the Water Basin Committees, entities where the State Government, municipalities and users participate, those with the greatest weight in water management. In Brazil, however, this model is not yet implemented in all watersheds. Thus, the aim of this paper is to compare the institutional and legal aspects of water management models in Brazil and Colombia with regard to the integrated water management concept. For the latter, we worked with a case study for each country regarding Nima River watershed (Colombia and Tietê Jacaré (Brazil.

  8. Comparing the Effectiveness of SPSS and EduG Using Different Designs for Generalizability Theory

    Science.gov (United States)

    Teker, Gulsen Tasdelen; Guler, Nese; Uyanik, Gulden Kaya

    2015-01-01

    Generalizability theory (G theory) provides a broad conceptual framework for social sciences such as psychology and education, and a comprehensive construct for numerous measurement events by using analysis of variance, a strong statistical method. G theory, as an extension of both classical test theory and analysis of variance, is a model which…

  9. Economic theory and latin America external debt Teoría económica y deuda externa latinoamericana

    Directory of Open Access Journals (Sweden)

    Nitsch Manfred

    1994-06-01

    Full Text Available This article reviews the concepts involved in the problem of foreign debt. From a Monetary Keynesian approach, it analyzes the differences and similarities between the Kindleberger model, the German Marxist view, the orthodox theory of debt cycles held by the World Bank and Latin American structuralism. Finally, there are some elements of German Monetary Keynesianism in an integration of financial factors and growing microeconomic concern for insti tutions. In the practical field there is a consideration of the policies required to solve the debt problem which each school of thought would recommend. The author supports the thesis of Riese, founder of the Berlin School: in view of their limi ted monetary and productive potential, developing countries are unable to counter the devaluation strategies of the leading industrial countries... the strategies of devaluation of the underdeveloped countries and the consolidation of the balance of payments as the ruling monetary policy, much promoted by recent academic literature, are doomed to fail.
    En este artículo se revisan los aspectos conceptuales del problema de la deuda externa. Desde una perpectiva keynesiano monetario se exponen las diferencias y semejanzas entre el modelo Kindleberger, la visión marxista alemana, la teoría ortodoxa del ciclo de la deuda del Banco Mundial y el estructuralismo latinoamericano. Por último, se presentan algunos elementos del keynesianismo monetario alemán que permite integrar los aspectos financieros y la creciente preocupación microeconómica por las instituciones. En el terreno práctico, de las políticas para resolver el problema de la deuda de que se desprenden de cada escuela de pensamiento, los autores apoyan la tesis de Riese, fundador de la escuela berlinesa: "...en vista de su limitado potencial monetario y productivo, los países en desarrollo no pueden contrarrestar las estrategias de subdevaluación de los principales países industriales

  10. A comparative study of atomic oxygen adsorption at Pd surfaces from Density Functional Theory

    Science.gov (United States)

    Bukas, Vanessa J.; Reuter, Karsten

    2017-04-01

    Based on density functional theory, we present a detailed investigation into the on-surface adsorption of atomic oxygen at all three low-index Pd facets in the low-coverage regime. Relying on one consistent computational framework allows for a systematic comparison with respect to surface symmetry, while discerning trends in the adsorption geometries, energies, work functions, and electron densities. We overall find a persisting degree of O-Pd hybridization that is accompanied by minimal charge transfer from the substrate to the adsorbate, thereby resulting in comparable binding energies and diffusion barriers at the three surfaces. Small differences in reactivity are nevertheless reflected in subtle variations of the underlying electronic structure which do not, however, follow the expected order according to atom packing density.

  11. 'The Italian job?': comparing theory of mind performance in British and Italian children.

    Science.gov (United States)

    Lecce, Serena; Hughes, Claire

    2010-11-01

    Cross-cultural research on theory of mind is relatively recent and largely restricted to comparisons of children from Western versus non-Western samples; much less is known about variation within Western cultures. This study compared 5- to 6-year-olds from Britain and Italy (matched for age, verbal age, gender, and maternal education; N = 140), on tests tapping children's understanding of 1st and 2nd order false belief and mixed emotions. Overall, British children outperformed Italian children; group differences were clearest for tests of false-belief understanding. These results are discussed in relation to contrasts in family talk about mental states, schooling, language comprehension, and cultural factors in Britain and Italy.

  12. Ownership of Copyright in Works Created in Employment Relationships: Comparative Study of the Laws of Colombia, Germany and the United States of America

    Directory of Open Access Journals (Sweden)

    José Roberto Herrera Diaz

    2010-11-01

    Full Text Available Great quantities of copyrighted works around the world are produced in the context of labor law Relationships. The ownership of these works has been regulated in different ways by the national laws of each country, and the only attempt of legal harmonization has been found in the European Community regarding computer programs created in the course of employment. The sovereignty and territoriality principles by with each country can enact its own laws in its territory to rule on the ownership question has been applied by countries. As an example, Germany and United States have regulated the subject in their respective national copyright laws. Nonetheless, there are similarities and differences in the ways that these two countries regulate the ownership of economic rights. In other countries, such as Colombia, lawmaker have established a legal rule regarding the ownership of moral rights in copyrighted works, but does not define a clear rule on the important issue of the economic rights in such works. This ambiguity has caused legal uncertainty, raising the question as to whether these types of rights belong to employees, private contractors, freelancers or employers. Taking into account the current issues that can arise in works created in employment relationships, this paper will make a comparative study of the laws of Colombia, Germany and the United States of America.

  13. Ownership of copyright in works created in employment relationships: comparative study of the laws of Colombia, Germany and the United States of America

    Directory of Open Access Journals (Sweden)

    José Roberto Herrera Diaz

    2010-11-01

    Full Text Available Great quantities of copyrighted works around the world are produced in the context of labor law Relationships. The ownership of these works has been regulated in different ways by the national laws of each country, and the only attempt of legal harmonization has been found in the European Community regarding computer programs created in the course of employment. The sovereignty and territoriality principles by with each country can enact its own laws in its territory to rule on the ownership question has been applied by countries. As an example, Germany and United States have regulated the subject in their respective national copyright laws. Nonetheless, there are similarities and differences in the ways that these two countries regulate the ownership of economic rights. In other countries, such as Colombia, lawmaker have established a legal rule regarding the ownership of moral rights in copyrighted works, but does not define a clear rule on the important issue of the economic rights in such works. This ambiguity has caused legal uncertainty, raising the question as to whether these types of rights belong to employees, private contractors, freelancers or employers. Taking into account the current issues that can arise in works created in employment relationships, this paper will make a comparative study of the laws of Colombia, Germany and the United States of America.

  14. 中、美智慧健康系统对比研究%Comparative study between China and America of Smart Healthcare System

    Institute of Scientific and Technical Information of China (English)

    孟伟花; 向菲; 金新政

    2016-01-01

    智慧健康系统的快速发展逐渐改变健康服务的模式,成为健康管理的重要工具。为了完善我国智慧健康系统的功能,分析中美两国智慧健康系统的结构、功能和服务模式,探讨构建智慧健康系统的理念和方法,以更好的实现智能技术与医疗健康的结合。%Smart health system Rapid growth has become an important tool for health management. In order to improve the function of smart healthcare system, analyzed and compared of China and America smart healthcare system’s architecture, function and service mode. To explore the idea and method of constructing smart healthcare system, and realized the combination of intelligent technology and healthcare.

  15. Building America

    Energy Technology Data Exchange (ETDEWEB)

    Brad Oberg

    2010-12-31

    IBACOS researched the constructability and viability issues of using high performance windows as one component of a larger approach to building houses that achieve the Building America 70% energy savings target.

  16. Metacognition Theory and Research in Second Language Listening and Reading:A Comparative Critical Review

    Institute of Scientific and Technical Information of China (English)

    CHRISTINE C.M.GOH; LIMEI ZHANG

    2013-01-01

    Listening and reading are two receptive skills in language learning and language use . Although their modalities differ , listening and reading share a number of cognitive processes required for language comprehension this has resulted in some commonalities in research emphases for the two skills . One such focus is the role of metacognition in self-regulated learning and comprehension performance . In this article theory postulated for metacognition and its manifestation in listening and reading are discussed . The article also reviews selected studies conducted in two important dimensions of metacognition , namely metacognitive knowledge and strategy use , and the impact that metacognitive instruction has on listening and reading comprehension performance . Results from the review for each skill are synthesised and compared in order to draw insights into the processes of learning to listen and read in another language . Based on this comparative review , the authors offer suggestions for enhancing process-based instructional practices in the language classroom and identify possible directions for future research into the role of metacognition in listening and reading specifically as well as second language comprehension as a whole .

  17. Using the Reliability Theory for Assessing the Decision Confidence Probability for Comparative Life Cycle Assessments.

    Science.gov (United States)

    Wei, Wei; Larrey-Lassalle, Pyrène; Faure, Thierry; Dumoulin, Nicolas; Roux, Philippe; Mathias, Jean-Denis

    2016-03-01

    Comparative decision making process is widely used to identify which option (system, product, service, etc.) has smaller environmental footprints and for providing recommendations that help stakeholders take future decisions. However, the uncertainty problem complicates the comparison and the decision making. Probability-based decision support in LCA is a way to help stakeholders in their decision-making process. It calculates the decision confidence probability which expresses the probability of a option to have a smaller environmental impact than the one of another option. Here we apply the reliability theory to approximate the decision confidence probability. We compare the traditional Monte Carlo method with a reliability method called FORM method. The Monte Carlo method needs high computational time to calculate the decision confidence probability. The FORM method enables us to approximate the decision confidence probability with fewer simulations than the Monte Carlo method by approximating the response surface. Moreover, the FORM method calculates the associated importance factors that correspond to a sensitivity analysis in relation to the probability. The importance factors allow stakeholders to determine which factors influence their decision. Our results clearly show that the reliability method provides additional useful information to stakeholders as well as it reduces the computational time.

  18. 中美卓越教师评价标准比较研究%A Comparative Study of Evaluation Standards for Excellent Teachers in China and America

    Institute of Scientific and Technical Information of China (English)

    左岚

    2015-01-01

    The article summarized the evaluation criteria system for excellent teachers in China and America and compared the key characteristics of these evaluation standards. The standard for Chinese Teji Teacher highlights the evaluation of excellent teachers' ethics, teaching performance, and student development;the standard of Hong Kong Chief Executive Award for Teaching Excellence emphasizes "curriculum implementation" and "pursuit of excellence culture"; American NBPTS standard centers on student development, teacher's knowledge and skills, as well as teachers' cooperation. Based on these standards, the author pointed out some suggestions for the evaluation standards for excellent teachers in China in terms of teachers' knowledge, teaching practice, professional spirit, and community service.%本文详细阐述了中美两国卓越教师的评价标准体系,并深入比较分析了其关键特征.研究发现,我国内地对特级教师的评价标准侧重于从师德、育人、教学等方面进行综合评价,我国香港卓越教学奖的评价标准以"课程实施"与"追求卓越文化"为核心,美国NBPTS标准则体现了以"学生发展、教师的知识与技能、教师合作"为本的理念.基于这些国际上的评价标准,本文从专业知识、教学成效、专业精神与社区服务四个方面提出建构我国卓越教师评价标准体系的建议.

  19. Major Challenges in Clinical Management of TB/HIV Coinfected Patients in Eastern Europe Compared with Western Europe and Latin America.

    Directory of Open Access Journals (Sweden)

    Anne Marie W Efsen

    Full Text Available Rates of TB/HIV coinfection and multi-drug resistant (MDR-TB are increasing in Eastern Europe (EE. We aimed to study clinical characteristics, factors associated with MDR-TB and predicted activity of empiric anti-TB treatment at time of TB diagnosis among TB/HIV coinfected patients in EE, Western Europe (WE and Latin America (LA.Between January 1, 2011, and December 31, 2013, 1413 TB/HIV patients (62 clinics in 19 countries in EE, WE, Southern Europe (SE, and LA were enrolled.Significant differences were observed between EE (N = 844, WE (N = 152, SE (N = 164, and LA (N = 253 in the proportion of patients with a definite TB diagnosis (47%, 71%, 72% and 40%, p<0.0001, MDR-TB (40%, 5%, 3% and 15%, p<0.0001, and use of combination antiretroviral therapy (cART (17%, 40%, 44% and 35%, p<0.0001. Injecting drug use (adjusted OR (aOR = 2.03 (95% CI 1.00-4.09, prior anti-TB treatment (3.42 (1.88-6.22, and living in EE (7.19 (3.28-15.78 were associated with MDR-TB. Among 585 patients with drug susceptibility test (DST results, the empiric (i.e. without knowledge of the DST results anti-TB treatment included ≥3 active drugs in 66% of participants in EE compared with 90-96% in other regions (p<0.0001.In EE, TB/HIV patients were less likely to receive a definite TB diagnosis, more likely to house MDR-TB and commonly received empiric anti-TB treatment with reduced activity. Improved management of TB/HIV patients in EE requires better access to TB diagnostics including DSTs, empiric anti-TB therapy directed at both susceptible and MDR-TB, and more widespread use of cART.

  20. 中英美油气会计准则比较研究%Comparative Study of Oil & Gas Accounting Standards in China, America and the UK

    Institute of Scientific and Technical Information of China (English)

    孙梅; 于韬

    2012-01-01

    在比较分析中英美油气会计准则中涉及的油气资产计量、涉外会计及油气会计信息披露等多个方面的会计处理基础上,根据中国的实际情况,改进了期末完井后的会计处理,优化了折耗率的计算,对油气资产现金流量现值的计算提出了可行性建议,并引入了基于产量计提预计负债的弃置义务处理方法;对产量分成合同与联合经营合同中的会计处理进行了说明;同时建议增加储量价值及油气生产活动经营成果的披露。%This thesis compares the oil and gas accounting standards in China with the standards in America and the UK, draws on their advanced ideas, and then puts forward constructive proposals for the improvement of CAS 27, involving measurement of oil and gas asset, international accounting, and disclosure of reserves. The measurement includes accounting methods, initial measurement, and subsequent measurement. This thesis im- proves the accounting treatment at the end of period and after well finished, the calculation of NPV, and the treatment of abandon obligations. Then this thesis analyses the disadvantage of CAS 27 when confirm the profit and loss in transfer the possession of oil and gas interest, and introduce the accounting treatment in PSC and joint operation contract. Finally, this thesis standardizes the disclosure of oil & gas reserves.

  1. Winners, Losers, Insiders, and Outsiders: Comparing Hierometer and Sociometer Theories of Self-Regard

    OpenAIRE

    Nikhila eMahadevan; Gregg, Aiden P.; Constantine eSedikides; de Waal-Andrews, Wendy G.

    2016-01-01

    What evolutionary function does self-regard serve? Hierometer theory, introduced here, provides one answer: it helps individuals navigate status hierarchies, which feature zero-sum contests that can be lost as well as won. In particular, self-regard tracks social status to regulate behavioral assertiveness, augmenting or diminishing it to optimize performance in such contests. Hierometer theory also offers a conceptual counterpoint that helps resolve ambiguities in sociometer theory, which of...

  2. A CFD analysis of the actuator disc flow compared with momentum theory results

    Energy Technology Data Exchange (ETDEWEB)

    Aagaard Madsen, H. [Risoe National Laboratory, Roskilde (Denmark)

    1997-08-01

    The blade element momentum (BEM) model is still used in many aerodynamic and aeroelastic models for design and load calculations. This is due to its simplicity, robustness, computational speed and good accuracy for a wide range of applications. The question about accuracy is however closely connected to the airfoil section data and therefore correlation/lack of correlation with experimental results can both be due to the specific input data used and due to the induced velocity field predicted by the BEM method. It is also well-known that the BEM method for some applications is used under operational conditions that violates the assumptions made for the development of the model, e.g. operation in yaw and operation at high loading. The main objective with the present study is to investigate this part of the BEM method (the momentum strip theory MST) on which the determination of the induced velocities is based. This is done by comparing the results of the MST model with velocities predicted on basis of the Navier Stokes equations for the flow through an actuator disc. (au)

  3. Placebo studies and ritual theory: a comparative analysis of Navajo, acupuncture and biomedical healing.

    Science.gov (United States)

    Kaptchuk, Ted J

    2011-06-27

    Using a comparative analysis of Navajo healing ceremonials, acupuncture and biomedical treatment, this essay examines placebo studies and ritual theory as mutually interpenetrating disciplines. Healing rituals create a receptive person susceptible to the influences of authoritative culturally sanctioned 'powers'. The healer provides the sufferer with imaginative, emotional, sensory, moral and aesthetic input derived from the palpable symbols and procedures of the ritual process-in the process fusing the sufferer's idiosyncratic narrative unto a universal cultural mythos. Healing rituals involve a drama of evocation, enactment, embodiment and evaluation in a charged atmosphere of hope and uncertainty. Experimental research into placebo effects demonstrates that routine biomedical pharmacological and procedural interventions contain significant ritual dimensions. This research also suggests that ritual healing not only represents changes in affect, self-awareness and self-appraisal of behavioural capacities, but involves modulations of symptoms through neurobiological mechanisms. Recent scientific investigations into placebo acupuncture suggest several ways that observations from ritual studies can be verified experimentally. Placebo effects are often described as 'non-specific'; the analysis presented here suggests that placebo effects are the 'specific' effects of healing rituals.

  4. Comparative study on hydrogenation of propanal on Ni(111) and Cu(111) from density functional theory

    Science.gov (United States)

    An, Wei; Men, Yong; Wang, Jinguo

    2017-02-01

    Using propanal as a probe molecule, we have comparatively investigated hydrogenation of carbonyl (Cdbnd O) in short carbon-chain aldehyde on Ni(111) and Cu(111) by means of periodic density functional theory. Our focus is in particular on the differentiation of reaction route in sequential hydrogenation on Ni(111) and Cu(111) following Langmuir-Hinshelwood mechanism. Strong binding with alkoxy intermediates has great impact on altering reaction pathways on the two surfaces, where hydroxyl route via 1-hydroxyl propyl intermediate is dominant on Ni(111), but alkoxy route via propoxyl intermediate is more likely on Cu(111) due to a higher activiation barrier of initial hydrogenation in hydroxyl route. In comparison, hydrogenation of carbonyl on Ni(111) is kinetically much faster than that on Cu(111) as a result of much lower activation barrier in rate-determining step (i.e., 13.2 vs 26.8 kcal/mol) of most favorable reaction pathways. Furthermore, the discrepancy in calculated and experimental barriers can be well explained by using the concept of H-tunneling effect on bond forming with H atoms during sequential hydrogenation. The different features of electronic structure exhibited by the two metal surfaces provide insight into their catalytic behaviors.

  5. Theory of mind in children with attention deficit hyperactivity disorder compared to controls

    Directory of Open Access Journals (Sweden)

    Mohammad Taghi Saeedi

    2014-08-01

    Full Text Available Introduction: Children with attention deficit hyperactivity disorder (ADHD have serious social skill deficits and problems in relation with peers. This study aimed to compare theory of mind (ToM in drug-naïve children with ADHD with those with no psychiatric disorders at the same age. Methods: This cross-sectional study was established in child and adolescent psychiatry clinic of the Tabriz University of Medical Sciences (Tabriz, Iran. Drug naïve, male children and adolescents with a diagnosis of ADHD were enrolled as well as age and intelligence quotient (IQ matched healthy controls. Kiddie Schedule for Affective Disorders and Schizophrenia-Present and Lifetime Version ‎(K-SADS-PL‎, Child Symptom Inventory-4 ‎(CSI-4‎, and Conner’s Parents Rating Scales-Revised ‎(CPRS‎ were used to measure psychiatric disorders and Sally-Anne False Belief Task, and The Reading the Mind in the Eyes Task (child for components of ToM. Results: A total of 30 children completed the study in each group. Half of children with ADHD could not give the expected answer in Sally-Anne False Belief Task, which was significantly lower than controls. They also showed a significantly lower performance in The Reading the Mind in the Eyes Task. Severity of ADHD was not correlated with a score of The Reading the Mind in the Eyes Task. Conclusion: Children with ADHD have deficits in ToM compared with age and IQ matched controls in terms of social cognition and social sensitivity.

  6. Industrial Wage Inequality in Latin America in Global Perspective, 1900-2000

    NARCIS (Netherlands)

    Frankema, E.H.P.

    2012-01-01

    Standard economic theories of wage inequality focus on the factor-biased nature of technological change and globalization. This paper examines the long-run development of industrial wage inequality in Latin America from a global comparative perspective. We find that wage inequality was comparatively

  7. Winners, Losers, Insiders, and Outsiders: Comparing Hierometer and Sociometer Theories of Self-Regard

    Directory of Open Access Journals (Sweden)

    Nikhila eMahadevan

    2016-03-01

    Full Text Available What evolutionary function does self-regard serve? Hierometer theory, introduced here, provides one answer: it helps individuals navigate status hierarchies, which feature zero-sum contests that can be lost as well as won. In particular, self-regard tracks social status to regulate behavioral assertiveness, augmenting or diminishing it to optimize performance in such contests. Hierometer theory also offers a conceptual counterpoint that helps resolve ambiguities in sociometer theory, which offers a complementary account of self-regard’s evolutionary function. In two large-scale cross-sectional studies, we operationalized theoretically relevant variables at three distinct levels of analysis, namely, social (relations: status, inclusion, psychological (self-regard: self-esteem, narcissism, and behavioral (strategy: assertiveness, affiliativeness. Correlational and mediational analyses consistently supported hierometer theory, but offered only mixed support for sociometer theory, including when controlling for confounding constructs (anxiety, depression. We interpret our results in terms of a broader agency-communion framework.

  8. Winners, Losers, Insiders, and Outsiders: Comparing Hierometer and Sociometer Theories of Self-Regard

    Science.gov (United States)

    Mahadevan, Nikhila; Gregg, Aiden P.; Sedikides, Constantine; de Waal-Andrews, Wendy G.

    2016-01-01

    What evolutionary function does self-regard serve? Hierometer theory, introduced here, provides one answer: it helps individuals navigate status hierarchies, which feature zero-sum contests that can be lost as well as won. In particular, self-regard tracks social status to regulate behavioral assertiveness, augmenting or diminishing it to optimize performance in such contests. Hierometer theory also offers a conceptual counterpoint that helps resolve ambiguities in sociometer theory, which offers a complementary account of self-regard’s evolutionary function. In two large-scale cross-sectional studies, we operationalized theoretically relevant variables at three distinct levels of analysis, namely, social (relations: status, inclusion), psychological (self-regard: self-esteem, narcissism), and behavioral (strategy: assertiveness, affiliativeness). Correlational and mediational analyses consistently supported hierometer theory, but offered only mixed support for sociometer theory, including when controlling for confounding constructs (anxiety, depression). We interpret our results in terms of a broader agency-communion framework. PMID:27065896

  9. Textbook America.

    Science.gov (United States)

    Karp, Walter

    1980-01-01

    Focuses on how political attitudes have been influenced by American history textbooks at various times throughout history. Excerpts from traditional and revisionist textbooks are presented, with emphasis on "America Revised" by Frances FitzGerald. Journal available from Harper's Magazine Co., 2 Park Ave., New York, NY 10016. (DB)

  10. Science in Latin America.

    Science.gov (United States)

    Ayala, Francisco J.

    1995-01-01

    A brief history of science and technology in Latin America that begins with the Mayan civilization and progresses through the colonial period to the present. Compares increased scientific productivity in the Latin American and Caribbean regions to productivity in the United States and European Union. (LZ)

  11. Accuracies of the empirical theories of the escape probability based on Eigen model and Braun model compared with the exact extension of Onsager theory.

    Science.gov (United States)

    Wojcik, Mariusz; Tachiya, M

    2009-03-14

    This paper deals with the exact extension of the original Onsager theory of the escape probability to the case of finite recombination rate at nonzero reaction radius. The empirical theories based on the Eigen model and the Braun model, which are applicable in the absence and presence of an external electric field, respectively, are based on a wrong assumption that both recombination and separation processes in geminate recombination follow exponential kinetics. The accuracies of the empirical theories are examined against the exact extension of the Onsager theory. The Eigen model gives the escape probability in the absence of an electric field, which is different by a factor of 3 from the exact one. We have shown that this difference can be removed by operationally redefining the volume occupied by the dissociating partner before dissociation, which appears in the Eigen model as a parameter. The Braun model gives the escape probability in the presence of an electric field, which is significantly different from the exact one over the whole range of electric fields. Appropriate modification of the original Braun model removes the discrepancy at zero or low electric fields, but it does not affect the discrepancy at high electric fields. In all the above theories it is assumed that recombination takes place only at the reaction radius. The escape probability in the case when recombination takes place over a range of distances is also calculated and compared with that in the case of recombination only at the reaction radius.

  12. The contingency of independence and revolution: theoretical and comparative perspectives on Latin America La contingencia de la independencia y de la revolución: perspectivas teóricas y comparadas sobre América latina

    Directory of Open Access Journals (Sweden)

    Wolfgang KNÖBL

    2011-06-01

    Full Text Available This article compares the U.S. and French-Revolutions in the last third of the 18th with independence and revolution in Spanish America at the beginning of the 19th century under a particular theoretical perspective. Focussing mainly on the initial stages of these revolutionary events it will be shown that: a in all three cases the path towards a revolutionary break with the Old Regime was anything but predetermined and that b particularly in the Americas the question of the Nation was not settled at all by the revolutionaries. This is one of the most important explanations why later onwards Nation –and State– building in the Americas, both in Latin America and in North-America, became anything but a smooth and linear process.Este artículo compara las revoluciones francesa y estadounidense del último tercio del siglo XVIII con la independencia y la revolución en la América Latina de inicios del siglo XIX, bajo una perspectiva teórica particular. Centrándose principalmente en las etapas iniciales de estos eventos revolucionarios, se demostrará que a en los tres casos, el camino hacia un quiebre revolucionario con el viejo régimen no fue predeterminado y b particularmente en las Américas, el tema de la Nación no fue del todo resuelto por los revolucionarios. Ésta es una de las explicaciones más importantes de por qué, en adelante, la construcción de la Nación –y del Estado– en América Latina y Norteamérica no fue un proceso cómodo ni linear.

  13. Comparative Comparison of Implementing School-Based Management in Developed Countries in the Historical Context: From Theory to Practice

    Science.gov (United States)

    Moradi, Saeid; Beidokhti, Aliakbar Amin; Fathi, Kourosh

    2016-01-01

    This paper aims to study the comparative comparison of implementing school-based management in developed countries in the historical context: from theory to practice. School-based management is not by itself and objective but a valuable tool in order to reach sagacity, capabilities and the enthusiasm from most people having shares in school.…

  14. Do Actions Speak Louder than Words? A Comparative Perspective on Implicit versus Explicit Meta-Cognition and Theory of Mind

    Science.gov (United States)

    Couchman, Justin J.; Beran, Michael J.; Coutinho, Mariana V. C.; Boomer, Joseph; Zakrzewski, Alexandria; Church, Barbara; Smith, J. David

    2012-01-01

    Research in non-human animal (hereafter, animal) cognition has found strong evidence that some animal species are capable of meta-cognitively monitoring their mental states. They know when they know and when they do not know. In contrast, animals have generally not shown robust theory of mind (ToM) capabilities. Comparative research uses methods…

  15. Major challenges in clinical management of TB/HIV co-infected patients in Eastern Europe compared with Western Europe and Latin America

    Directory of Open Access Journals (Sweden)

    Anne Marie Efsen

    2014-11-01

    Full Text Available Introduction: Rates of both TB/HIV co-infection and multi-drug-resistant (MDR TB are increasing in Eastern Europe (EE. Data on the clinical management of TB/HIV co-infected patients are scarce. Our aim was to study the clinical characteristics of TB/HIV patients in Europe and Latin America (LA at TB diagnosis, identify factors associated with MDR-TB and assess the activity of initial TB treatment regimens given the results of drug-susceptibility tests (DST. Material and Methods: We enrolled 1413 TB/HIV patients from 62 clinics in 19 countries in EE, Western Europe (WE, Southern Europe (SE and LA from January 2011 to December 2013. Among patients who completed DST within the first month of TB therapy, we linked initial TB treatment regimens to the DST results and calculated the distribution of patients receiving 0, 1, 2, 3 and ≥4 active drugs in each region. Risk factors for MDR-TB were identified in logistic regression models. Results: Significant differences were observed between EE (n=844, WE (n=152, SE (n=164 and LA (n=253 for use of combination antiretroviral therapy (cART at TB diagnosis (17%, 40%, 44% and 35%, p<0.0001, a definite TB diagnosis (culture and/or PCR positive for Mycobacterium tuberculosis; 47%, 71%, 72% and 40%, p<0.0001 and MDR-TB prevalence (34%, 3%, 3% and 11%, p <0.0001 among those with DST results. The history of injecting drug use [adjusted OR (aOR = 2.03, (95% CI 1.00–4.09], prior TB treatment (aOR = 3.42, 95% CI 1.88–6.22 and living in EE (aOR = 7.19, 95% CI 3.28–15.78 were associated with MDR-TB. For 569 patients with available DST, the initial TB treatment contained ≥3 active drugs in 64% of patients in EE compared with 90–94% of patients in other regions (Figure 1a. Had the patients received initial therapy with standard therapy [Rifampicin, Isoniazid, Pyrazinamide, Ethambutol (RHZE], the corresponding proportions would have been 64% vs. 86–97%, respectively (Figure 1b. Conclusions: In EE, TB

  16. Comparative study of patulin, ascladiol, and neopatulin by Density Functional Theory

    Science.gov (United States)

    Patulin, a secondary metabolite produced by several fungal species, is a potential contaminant of fruit and vegetable products. To better understand the structure and electronic properties of this mycotoxin and its biosynthetic precursors, a density functional theory (DFT) study was performed on co...

  17. Comparing the Effects of Two Facets of Multiple Intelligences Theory on Developing EFL Learners' Listening

    Science.gov (United States)

    Bemani Naeini, Ma'ssoumeh

    2015-01-01

    Gardner's Multiple Intelligences Theory (MIT), however having been embraced in the field of language acquisition, has apparently failed to play a role in research on learning styles as an alternative construct. This study aims at examining the potential effects of MI-based activities, as learning styles, on the listening proficiency of Iranian…

  18. Between Collingwood’s and Croce’s Art-Theories: A Comparative Study

    Directory of Open Access Journals (Sweden)

    Raymundo R. Pavo

    2010-06-01

    Full Text Available An initial study of Robin George Collingwood's The Principles of Art(hereafter, Principles and Benedetto Croce's Aesthetic: A Science ofExpression and General Linguistic (hereafter, Aesthetic gives an immediate impression that Collingwood appropriated and incorporated many elements in Croce's work to his own position. This is probably the main reason why Collingwood, in his correspondence with Croce, sincerely expressed his gratitude to the Italian Philosopher for laying the foundation of his art-theory. Collingwood's acknowledgement of Croce's influence and the apparentsimilarity in their theories on art disposes us to wonder if Collingwood mayhave only extended, hence, reiterated the principles of Croce's position. Given this impression, the present article hopes to provide a study between Collingwood's and Croce's theories of art in the hope that we can tease out a crucial difference between their standpoints. If we can demonstrate a significant difference, then we may have provided ourselves with the cudgels to assert that Collingwood's theory of art is also unique.

  19. What Does Bankrupt Tell Us About World Polity Theory and Comparative Political Economy?

    DEFF Research Database (Denmark)

    Campbell, John L.

    2011-01-01

    Terence Halliday and Bruce Carruthers' book Bankrupt: Global Lawmaking and Systemic Financial Crisis is a major work, providing new ways to see and assess the relation of global normmaking and national lawmaking. The authors build and apply theory along the following dimensions within a single book...

  20. UV-Vis optoelectronic properties of α-SnWO4: A comparative experimental and density functional theory based study

    KAUST Repository

    Ziani, Ahmed

    2015-09-03

    We report a combined experimental and theoretical study on the optoelectronic properties of α-SnWO4 for UV-Vis excitation. The experimentally measured values for thin films were systematically compared with high-accuracy density functional theory and density functional perturbation theory using the HSE06 functional. The α-SnWO4 material shows an indirect bandgap of 1.52 eV with high absorption coefficient in the visible-light range (>2 × 105 cm−1). The results show relatively high dielectric constant (>30) and weak diffusion properties (large effective masses) of excited carriers.

  1. Major challenges in clinical management of TB/HIV co-infected patients in Eastern Europe compared with Western Europe and Latin America

    DEFF Research Database (Denmark)

    Efsen, Anne Marie; Schultze, Anna; Post, Frank

    2014-01-01

    INTRODUCTION: Rates of both TB/HIV co-infection and multi-drug-resistant (MDR) TB are increasing in Eastern Europe (EE). Data on the clinical management of TB/HIV co-infected patients are scarce. Our aim was to study the clinical characteristics of TB/HIV patients in Europe and Latin America (LA...... for Mycobacterium tuberculosis; 47%, 71%, 72% and 40%, phistory of injecting drug use [adjusted OR (aOR) = 2.03, (95% CI 1.00-4.09)], prior TB treatment (aOR = 3.42, 95% CI 1.88-6.22) and living in EE (aOR = 7.19, 95...

  2. Toward comparing experiment and theory for corroborative research on hingeless rotor stability in forward flight

    Science.gov (United States)

    Gaonkar, G.

    1987-01-01

    For flap lag stability of isolated rotors, experimental and analytical investigations were conducted in hover and forward flight on the adequacy of a linear quasisteady aerodynamics theory with dynamic flow. Forward flight effects on lag regressing mode were emphasized. A soft inplane hingeless rotor with three blades was tested at advance ratios as high as 0.55 and at shaft angles as high as 20 deg. The 1.62 m model rotor was untrimmed with an essentially unrestricted tilt of the tip path plane. In combination with lag natural frequencies, collective pitch settings and flap lag coupling parameters, the data base comprises nearly 1200 test points (damping and frequency) in forward flight and 200 test points in hover. By computerized symbolic manipulation, a linear model was developed in substall to predict stability margins with mode identification. To help explain the correlation between theory and data it also predicted substall and stall regions of the rotor disk from equilibrium values. The correlation showed both the strengths and weaknesses of the theory in substall ((angle of attack) equal to or less than 12 deg).

  3. Comparative characterization of two-electron wavefunctions using information-theory measures

    Energy Technology Data Exchange (ETDEWEB)

    Howard, I.A., E-mail: ihoward@vub.ac.b [Department of Chemistry (ALGC), Free University of Brussels (VUB), B-1050, Brussels, Belgium/Member of the QCMM-Alliance Ghent-Brussels (Belgium); Borgoo, A.; Geerlings, P. [Department of Chemistry (ALGC), Free University of Brussels (VUB), B-1050, Brussels, Belgium/Member of the QCMM-Alliance Ghent-Brussels (Belgium); Sen, K.D. [School of Chemistry, University of Hyderabad, Hyderabad 500046 (India)

    2009-08-31

    Information-theory measures, in particular the Shannon entropy, Fisher information and statistical complexity, are used to discuss the variations among several commonly encountered model two-electron correlated wavefunctions. The Hookean, Moshinsky, and three-parameter Chandrasekhar wavefunctions are considered in real and momentum space, with further comparisons to the Hookean-Hartree-Fock (HF) wavefunction of Ragot, the numerical HF limit, and the hydrogenic (pure Coulomb) limit. The purpose of the study is to quantitatively analyze the effect of different models for inclusion of electron-electron correlation on information-theoretical measures, including statistical complexity, which characterize the electron distribution in position and momentum space.

  4. A Comparative Analysis of Macedonian and English Teachers' Implicit Theories of Pupils' Intelligence and Motivation

    Directory of Open Access Journals (Sweden)

    Ana Mickkovska

    2010-01-01

    Full Text Available The paper represents a cross-cultural study of the similarities and differences in Macedonian and English teachers’ beliefs about pupils’ intelligence and the motivational strategies used in the classroom. Results indicate that Macedonian and English differ more in regard to the motivational strategies adopted, than to the implicit theories held. Findings tentatively suggest that the adoption of motivational strategies is primarily influenced by the doctrines promoted by the schooling system and to a minor degree by teachers’ beliefs about pupils’ intelligence and motivation.

  5. Electricity in Latin America

    Energy Technology Data Exchange (ETDEWEB)

    Breeze, P.

    1998-12-01

    The report provides an overview of the Latin American power market; analyses the power generation, transmission and distribution capabilities of 20 countries in central and south America; includes detailed comparative data on current capacity, shortfall and growth; investigates the existing network infrastructures and projected demand; examines the opportunities for independent power producers resulting from deregulation; assesses indigenous and imported fuel resources; and discusses the broad financial opportunities and restraints.

  6. A Comparative Study of Three Inverse Kinematic Methods of Serial Industrial Robot Manipulators in the Screw Theory Framework

    Directory of Open Access Journals (Sweden)

    Emre Sariyildiz

    2011-11-01

    Full Text Available In this paper, we compare three inverse kinematic formulation methods for the serial industrial robot manipulators. All formulation methods are based on screw theory. Screw theory is an effective way to establish a global description of rigid body and avoids singularities due to the use of the local coordinates. In these three formulation methods, the first one is based on quaternion algebra, the second one is based on dual‐quaternions, and the last one that is called exponential mapping method is based on matrix algebra. Compared with the matrix algebra, quaternion algebra based solutions are more computationally efficient and they need less storage area. The method which is based on dual‐quaternion gives the most compact and computationally efficient solution. Paden‐Kahan sub‐problems are used to derive inverse kinematic solutions. 6‐DOF industrial robot manipulator's forward and inverse kinematic equations are derived using these formulation methods. Simulation and experimental results are given.

  7. Comparing the Effects of Two Facets of Multiple Intelligences Theory on Developing EFL Learners’ Listening

    Directory of Open Access Journals (Sweden)

    Ma’ssoumeh Bemani Naeini

    2015-08-01

    Full Text Available Gardner’s Multiple Intelligences Theory (MIT, however having been embraced in the field of language acquisition, has apparently failed to play a role in research on learning styles as an alternative construct.  This study aims at examining the potential effects of MI-based activities, as learning styls, on the listening proficiency of Iranian TEFL university students.  Based on two assumptions derived from MIT, one of the experimental groups (EG1; N=30 worked on activities across intelligences while the other experimental group (EG2; N=30 focused on the activities related to their most developed intelligence.  McKenzie’s (1999 MI Inventory was used to identify the subjects’ preferred intelligences. There was a significant difference between listening scores on TOEFL before and after the intervention of MI-based activities as well as between the two experimental groups, indicating EG1 outperforming EG2.  So, as the findings reveal, integration of MIT can significantly contribute to the enhancement of EFL learners’ listening comprehension and the effect is even more significant if teachers practice an integration of all intelligences rather than the most developed ones, only.    Keywords: Multiple Intelligences Theory, learning styles, listening proficiency, Iranian EFL context

  8. A Basic Protein Comparative Three-Dimensional Modeling Methodological Workflow Theory and Practice.

    Science.gov (United States)

    Bitar, Mainá; Franco, Glória Regina

    2014-01-01

    When working with proteins and studying its properties, it is crucial to have access to the three-dimensional structure of the molecule. If experimentally solved structures are not available, comparative modeling techniques can be used to generate useful protein models to subsidize structure-based research projects. In recent years, with Bioinformatics becoming the basis for the study of protein structures, there is a crescent need for the exposure of details about the algorithms behind the softwares and servers, as well as a need for protocols to guide in silico predictive experiments. In this article, we explore different steps of the comparative modeling technique, such as template identification, sequence alignment, generation of candidate structures and quality assessment, its peculiarities and theoretical description. We then present a practical step-by-step workflow, to support the Biologist on the in silico generation of protein structures. Finally, we explore further steps on comparative modeling, presenting perspectives to the study of protein structures through Bioinformatics. We trust that this is a thorough guide for beginners that wish to work on the comparative modeling of proteins.

  9. Interpretive Excursions in Educational Administration: Reconstructing Weberian Theory as a Comparative Historical Sociology.

    Science.gov (United States)

    Samier, Eugenie A.

    1996-01-01

    Examines the presentation of Max Weber's work in educational administration. Shows how the nature and scope of Weber's methodological writings and studies have been misrepresented and how the potential value of Weber's comparative historical sociology has been reduced to administrative studies. Considers Weber's historical principles of…

  10. Comparative mtDNA phylogeography of neotropical freshwater fishes: testing shared history to infer the evolutionary landscape of lower Central America.

    Science.gov (United States)

    Bermingham, E; Martin, A P

    1998-04-01

    Historical biogeography seeks to explain contemporary distributions of taxa in the context of intrinsic biological and extrinsic geological and climatic factors. To decipher the relative importance of biological characteristics vs. environmental conditions, it is necessary to ask whether groups of taxa with similar distributions share the same history of diversification. Because all of the taxa will have shared the same climatic and geological history, evidence of shared history across multiple species provides an estimate of the role of extrinsic factors in shaping contemporary biogeographic patterns. Similarly, differences in the records of evolutionary history across species will probably be signatures of biological differences. In this study, we focus on inferring the evolutionary history for geographical populations and closely related species representing three genera of primary freshwater fishes that are widely distributed in lower Central America (LCA) and northwestern Colombia. Analysis of mitochondrial gene trees provides the opportunity for robust tests of shared history across taxa. Moreover, because mtDNA permits inference of the temporal scale of diversification we can test hypotheses regarding the chronological development of the Isthmian corridor linking North and South America. We have focused attention on two issues. First, we show that many of the distinct populations of LCA fishes diverged in a relatively brief period of time thus limiting the phylogenetic signal available for tests of shared history. Second, our results provide reduced evidence of shared history when all drainages are included in the analysis because of inferred dispersion events that obscure the evolutionary history among drainage basins. When we restrict the analysis to areas that harbour endemic mitochondrial lineages, there is evidence of shared history across taxa. We hypothesize that there were two to three distinct waves of invasion into LCA from putative source

  11. How do people learn to allocate resources? Comparing two learning theories.

    Science.gov (United States)

    Rieskamp, Jörg; Busemeyer, Jerome R; Laine, Tei

    2003-11-01

    How do people learn to allocate resources? To answer this question, 2 major learning models are compared, each incorporating different learning principles. One is a global search model, which assumes that allocations are made probabilistically on the basis of expectations formed through the entire history of past decisions. The 2nd is a local adaptation model, which assumes that allocations are made by comparing the present decision with the most successful decision up to that point, ignoring all other past decisions. In 2 studies, participants repeatedly allocated a capital resource to 3 financial assets. Substantial learning effects occurred, although the optimal allocation was often not found. From the calibrated models of Study 1, a priori predictions were derived and tested in Study 2. This generalization test shows that the local adaptation model provides a better account of learning in resource allocations than the global search model.

  12. Social impact assessment in mining projects in Northern Finland: Comparing practice to theory

    Energy Technology Data Exchange (ETDEWEB)

    Suopajärvi, Leena, E-mail: leena.suopajarvi@ulapland.fi

    2013-09-15

    The paper discusses social impact assessments (SIA) for mining projects in light of the international principles and guidelines for such assessments and the academic literature in the field. The data consist of environmental impact assessment (EIA) programmes and reports for six mining projects that have started up in northern Finland in the 2000s. A first observation is that the role of the SIAs in the EIA programmes and reports studied was quite minor: measured in number of pages, the assessments account for three or four percent of the total. This study analyses the data collection, research methodology and conceptual premises used in the SIAs. It concludes that the assessments do not fully meet the high standards of the international principles and guidelines set out for them: for example, elderly men are over-represented in the data and no efforts were made to identify and bring to the fore vulnerable groups. Moreover, the reliability of the assessments is difficult to gauge, because the qualitative methods are not described and where quantitative methods were used, details such as non-response rates to questionnaires are not discussed. At the end of the paper, the SIAs are discussed in terms of Jürgen Habermas' theory of knowledge interests, with the conclusion that the assessments continue the empirical analytical tradition of the social sciences and exhibit a technical knowledge interest. -- Highlights: • Paper investigates social impact assessments in Finnish mining projects. • Role of social impact assessment is minor in whole EIA-process. • Mining SIAs give the voice for elderly men, vulnerable groups are not identified. • Assessment of SIAs is difficult because of lacking transparency in reporting. • SIAs belong to empirical analytical tradition with technical knowledge interest.

  13. Comparing the ability of cognitive and affective Theory of Mind in adolescent onset schizophrenia

    Science.gov (United States)

    Li, Dandan; Li, Xiaosi; Yu, Fengqiong; Chen, Xingui; Zhang, Long; Li, Dan; Wei, Qiang; Zhang, Qing; Zhu, Chunyan; Wang, Kai

    2017-01-01

    Background Evidence in the literature suggests that there is an impairment of social cognition in schizophrenia. Theory of Mind (ToM) is defined as one’s ability to understand others’ wishes, beliefs, intentions, and other psychological states and thereby to judge others’ behavior, as an essential component of social cognition. However, there have been limited studies on social cognition, especially ToM in adolescent onset schizophrenia (AOS). The current study aims to investigate ToM abilities in adolescent schizophrenia according to various ToM subcomponents (cognitive ToM and affective ToM) and various ToM orders (first order and second order). Methods This study examines ToM in 35 adolescent schizophrenic patients and 35 healthy adolescents using the “Yoni task” and “Faux Pas Recognition test” to assess their affective and cognitive ToM abilities. Results In the Yoni task, patients with AOS showed differences in ToM abilities either on a different order or under different conditions. The Faux Pas Recognition task results revealed that AOS patients were not always able to recognize a faux pas or understand complicated emotions under the faux pas scenario. Furthermore, as indicated by the correlation analysis, neither cognitive ToM nor affective ToM was related to the patients’ symptoms, disease duration, dose of medication, or intelligence quotient (IQ). Conclusion Our findings showed AOS impairment in the performance of ToM tasks. It seemed that impairment in second-order-ToM is more serious. Moreover, these deficits are largely independent of symptom clusters, disease duration, dose of medication, and IQ. It can be speculated that ToM dysfunction may be a hallmark of adolescent schizophrenia.

  14. Globalisation plus Comparative and International Education: Towards a Theory of the Confluence

    Directory of Open Access Journals (Sweden)

    Emefa Amoako

    2012-04-01

    Full Text Available This paper attempts to contribute to ways by which confluence, referring to a meeting point for the different agents to cooperate and communicate on education policy processes, can be understood. Pertinent national education policies in countries receiving aid, in particular, are formed and implemented in a complex nexus. Cultural and context sensitivity can be stimulated through a thorough understanding of this confluence, which subsequently can enable the different policy agents, which function at this meeting point, collaborate to alleviate some of the educational challenges. Comparative and international education, in this respect, has a significant role to play.

  15. Comparative analysis of different variants of the Uzawa algorithm in problems of the theory of elasticity for incompressible materials.

    Science.gov (United States)

    Styopin, Nikita E; Vershinin, Anatoly V; Zingerman, Konstantin M; Levin, Vladimir A

    2016-09-01

    Different variants of the Uzawa algorithm are compared with one another. The comparison is performed for the case in which this algorithm is applied to large-scale systems of linear algebraic equations. These systems arise in the finite-element solution of the problems of elasticity theory for incompressible materials. A modification of the Uzawa algorithm is proposed. Computational experiments show that this modification improves the convergence of the Uzawa algorithm for the problems of solid mechanics. The results of computational experiments show that each variant of the Uzawa algorithm considered has its advantages and disadvantages and may be convenient in one case or another.

  16. Comparative analysis of different variants of the Uzawa algorithm in problems of the theory of elasticity for incompressible materials

    Directory of Open Access Journals (Sweden)

    Nikita E. Styopin

    2016-09-01

    Full Text Available Different variants of the Uzawa algorithm are compared with one another. The comparison is performed for the case in which this algorithm is applied to large-scale systems of linear algebraic equations. These systems arise in the finite-element solution of the problems of elasticity theory for incompressible materials. A modification of the Uzawa algorithm is proposed. Computational experiments show that this modification improves the convergence of the Uzawa algorithm for the problems of solid mechanics. The results of computational experiments show that each variant of the Uzawa algorithm considered has its advantages and disadvantages and may be convenient in one case or another.

  17. [Early reception of Darwin's selection theory and its sequelae for comparative morphology today].

    Science.gov (United States)

    Rehkämper, G

    1997-01-01

    It is argued that Darwin's concept of evolutionary change is primarily based on the idea of functional adaptation. Genealogical aspects are seen as a secondary consequence of this hypothesis. Unfortunately, the reception of Darwin's work was concentrated on the genealogical aspects from the very beginning (Huxley, Haeckel) and thus channeled future development of evolutionary morphology in a very one-sided way. This direction of development led to the adoption of cladism as a very sophisticated concept of comparative morphology. Though cladism claims to contribute to our understanding of evolution, it is demonstrated that it suffers in this regard because of the incompatibility of "pure morphology" with the demands of functional thinking as an integrative part of Darwin's proposition.

  18. Revisiting the formative works on the moving contact line to connect and compare modern theories

    CERN Document Server

    Sibley, David N; Savva, Nikos; Kalliadasis, Serafim

    2013-01-01

    The motion of a contact line is examined, and comparisons drawn, for a variety of proposed models in the literature. We provide an overview and extension of the original work on the moving contact line problem to elucidate and motivate some of the proposed methods to alleviate the multivalued velocity and nonintegrable stress and pressure singularities, offering a simple introduction to those unfamiliar with the situation and a contemporary look at the early work. We then compare a number of models from the literature in the classic prototype system of spreading of a thin two-dimensional droplet on a planar substrate, namely a variety of slip, disjoining pressure and interface formation models, the latter a sophisticated and complex model introduced by Shikhmurzaev, which differentiates itself from classical models through accounting for a variation in surface layer quantities and having finite-time surface tension relaxation. The thin droplet system utilising a long-wave model for the droplet thickness in a ...

  19. Comparative performance of fixed-film biological filters: Application of reactor theory

    Science.gov (United States)

    Watten, B.J.; Sibrell, P.L.

    2006-01-01

    Nitrification is classified as a two-step consecutive reaction where R1 represents the rate of formation of the intermediate product NO2-N and R2 represents the rate of formation of the final product NO3-N. The relative rates of R1 and R2 are influenced by reactor type characterized hydraulically as plug-flow, plug-flow with dispersion and mixed-flow. We develop substrate conversion models for fixed-film biofilters operating in the first-order kinetic regime based on application of chemical reactor theory. Reactor type, inlet conditions and the biofilm kinetic constants Ki (h-1) are used to predict changes in NH4-N, NO2-N, NO3-N and BOD5. The inhibiting effects of the latter on R1 and R2 were established based on the ?? relation, e.g.:{A formula is presented}where BOD5,max is the concentration that causes nitrification to cease and N is a variable relating Ki to increasing BOD5. Conversion models were incorporated in spreadsheet programs that provided steady-state concentrations of nitrogen and BOD5 at several points in a recirculating aquaculture system operating with input values for fish feed rate, reactor volume, microscreen performance, make-up and recirculating flow rates. When rate constants are standardized, spreadsheet use demonstrates plug-flow reactors provide higher rates of R1 and R2 than mixed-flow reactors thereby reducing volume requirements for target concentrations of NH4-N and NO2-N. The benefit provided by the plug-flow reactor varies with hydraulic residence time t as well as the effective vessel dispersion number, D/??L. Both reactor types are capable of providing net increases in NO2-N during treatment but the rate of decrease in the mixed-flow case falls well behind that predicted for plug-flow operation. We show the potential for a positive net change in NO2-N increases with decreases in the dimensionless ratios K2, (R2 )/K1,( R1 ) and [NO2-N]/[NH4-N] and when the product K1, (R1) t provides low to moderate NH4-N conversions. Maintaining

  20. Value of children and fertility: Results from a cross-cultural comparative survey in eighteen areas in Asia, Africa, Europe and America.

    Science.gov (United States)

    Nauck, Bernhard

    2014-09-01

    For explaining cross-cultural differences in fertility behavior, this paper conjoins three complementary approaches: the 'demand'-based economic theory of fertility (ETF), a revised version of the 'supply'-based 'value-of-children' (VOC)-approach as a special theory of the general social theory of social production functions and the framing theory of variable rationality. A comprehensive model is specified that encompasses the variable efficiency of having children for the optimization of physical well-being and of social esteem of (potential) parents; it also accounts for the variable rationality of fertility decisions. The model is tested with a data set that comprises information on VOC and fertility of women within the social settings of 18 areas (Peoples Republic of China, North and South India, Indonesia, Palestine, Israel, Turkey, Ghana, South Africa, East and West Germany, the Czech Republic, France, Russia, Poland, Estonia, the United States and Jamaica). Latent class analysis is used to establish a measurement model for the costs and benefits of children and to analyze area differences by a two-level multinomial-model. Two-level Cox-regressions are used to estimate the effects of perceived costs and benefits of children, individual resources and context opportunities, with births of different parity as dependents. This simultaneous test in a cross-cultural context goes beyond the current state of fertility research and provides evidence about the cross-cultural validity of the model, the systematic effects of VOC on fertility and the changing rationality of fertility decisions during demographic transition and socio-economic change.

  1. 美国、德国与日本中小学STEM教育比较研究%Comparative Study on STEM education of primary and secondary schools in America, Germany and Japan

    Institute of Scientific and Technical Information of China (English)

    杨亚平

    2015-01-01

    自美国将STEM教育提升至国家战略地位以来,STEM教育受到各国高度关注。本文从背景、目标和实施三个维度对美日德中小学阶段的STEM教育进行了宏观比较,结果显示美日德都将STEM教育视为21世纪教育改革的新方向,并试图本土化STEM教育,德国在STEM教育中仍凸显了完善的职业教育体系和终身教育理念,日本则透出强大的基础学科研究能力。%STEM education has been attracting the attention around the world since it promoted to the national strategic position by the government of America. By comparing the STEM education of primary and secondary schools from the background, goal and implementation in America, Germany and Japan, We ifnd all three countries regard the STEM education as a new direction of educational reformation in 21st century, and try to localize it. German still highlights the perfect system of vocational education and lifelong education idea in STEM education, while Japanese shows its strong basic science research ability.

  2. Comparative Study on Class Management between China and America:Taking the No.56 Classroom for Example%中美小学班级管理比较研究--以第56号教室为例

    Institute of Scientific and Technical Information of China (English)

    冯慧; 沈逸

    2015-01-01

    班级管理是教学管理的一个部分,是一种组织活动的过程。中美两国的教师在小学班级的管理上存在差异。本文以美国霍巴特小学的第56号教室为例,通过详细分析雷夫·艾斯奎斯(Rafe Esquith)老师对于第56号教室的班级管理方法来探析美国小学班级管理的特色,并以此与我国小学班级管理的现状进行比较,从而为我国的管理者、教育者提供一些启示与参考。%Class management is a part of teaching management, and it is also a process of organizational activities. The teachers between China and America have their own ideas on the class management of primary school. In this paper, we will know the class management’s characteristics in America by analyzing the methods of Rafe Esquith, the teacher of the No. 56 classroom in the Hobart Elementary School, and compare those with Chinese primary school’s so as to provide some inspiration and reference for our managers and educators.

  3. Increasing organizational energy conservation behaviors: Comparing the theory of planned behavior and reasons theory for identifying specific motivational factors to target for change

    Science.gov (United States)

    Finlinson, Scott Michael

    Social scientists frequently assess factors thought to underlie behavior for the purpose of designing behavioral change interventions. Researchers commonly identify these factors by examining relationships between specific variables and the focal behaviors being investigated. Variables with the strongest relationships to the focal behavior are then assumed to be the most influential determinants of that behavior, and therefore often become the targets for change in a behavioral change intervention. In the current proposal, multiple methods are used to compare the effectiveness of two theoretical frameworks for identifying influential motivational factors. Assessing the relative influence of all factors and sets of factors for driving behavior should clarify which framework and methodology is the most promising for identifying effective change targets. Results indicated each methodology adequately predicted the three focal behaviors examined. However, the reasons theory approach was superior for predicting factor influence ratings compared to the TpB approach. While common method variance contamination had minimal impact on the results or conclusions derived from the present study's findings, there were substantial differences in conclusions depending on the questionnaire design used to collect the data. Examples of applied uses of the present study are discussed.

  4. The Progress of Investing Psychology Theories of America%美国投资心理学理论的进展

    Institute of Scientific and Technical Information of China (English)

    翁学东

    2003-01-01

    美国投资心理学的研究产生于20世纪80年代.西方的许多经济学家在研究投资活动过程中发现,微观经济学和金融学的许多数学模型,不能很好地解释和预测现实中的投资活动,开始加强对个体在投资决策中的心理研究,在Amos Tversky、Daniel Kahneman、Richard Thaler、Robert J.Shiller等一大批经济学家和投资心理学家的努力下,取得了丰硕的成果.为此,美国普林斯顿大学的投资心理学家Kahneman荣获2002年度的诺贝尔经济学奖.文章介绍了西方投资心理学的几个重要理论,即过度反应理论(overreaction theory)、视野理论(prospect theory)、后悔理论(regret theory)及对投资者的过度自信理论(overconfidence theory).

  5. 浅析比较优势理论%Analysis on Two sidedness of Comparative Advantage Theory

    Institute of Scientific and Technical Information of China (English)

    刘挺

    2015-01-01

    比较优势由英国古典经济学家李嘉图提出,该理论发展至今,已经得到了广泛的认同。广大发展中国家根据比较优势理论的内涵制定其国家经济发展战略,并取得了巨大的成功,实现了国民经济的跨越式发展,提高了本国的国家综合实力。但是,如果一个国家过分依赖或者发挥比较优势理论,则会出现产业单一化、民族创新力消失等严重后果。因此,我国应正确运用和发挥比较优势理论,适时地进行产业结构转型升级和技术改进,保持经济的持久健康发展。%The theory of comparative advantage is put forward by David Ricardo,the English famous classical economist,and it has been ad-mitted and praised by economists in many different countries and has been well received by international society.Most developing countries establish their economic developing strategies on the basis of the theory of comparative advantage and have great success.Those countries have achieved a rapid development of national economy.The countries’overall strength is increased greatly,too.However,if a country de-pends on this theory too much,it may result in some serious consequences,like the industries structure will be single and the national inno-vation will be disappeared and etc.Thus,China should understand and use this theory correctly,adjust and upgrade the industrial structure and improve the technological innovation timely to keep the economy booming.

  6. Bertolt Brecht in Latin America

    Directory of Open Access Journals (Sweden)

    Ebru Gökdağ

    2015-02-01

    Full Text Available In 1943, when Bertolt Brecht and Kurt Weill’s The Three Penny Opera opened in Mexico, Latin America encountered Brecht for the first time. Political concerns among Latin Americans, and their attempts to present them theatrically, pre-dated the widespread dissemination of Brecht’s theories. After 1943, Brecht’s work as a theoretician in Latin America had to wait another decade before it was to have influence there.   Thus, when Latin America encountered Brecht, it was a case of parallel evolution rather than of direct influence. Brechtian theorizing and its influence on Augusto Boal's approach has been widely acknowledged.  Some critics state that Boal extended ideas similar to Brecht’s but improved upon them by transforming the audience from a reflective passive stance to an active participant. Yet Boal does more than merely extend or elaborate on the theories of Brecht. Brecht formulated his theory through critical and intellectual analysis, while Boal co-created his approach with individuals whom he was both teaching and learning from at the same time. Since Boal’s work is based on four decades of practice, there is a commitment in his ideas that is far less intellectual and more practical, a passion in his devotion to transforming audience expectation and response that is wholly absent in Brechtian theorizing.

  7. Theories of Comparative Analysis

    Science.gov (United States)

    1988-05-01

    model of a projectile fired from a cannon in a uniform gravitational field serves to demonstrate the problems due to qualitative arithmetic. Nei...recently demonstrated the qualitative Gauss rule, a type of algebraic manip- ulation that is solution preserving. While it cannot eliminate all...projectile fired from a cannon illustrates this point. Given an increase in muzzle velocity, Vft, as a perturbation, DQ " analysis predicts that apogee

  8. Modern Models of Psychosocial Adaptation to Chronic Illness and Disability as Viewed through the Prism of Lewin's Field Theory: A Comparative Review

    Science.gov (United States)

    Livneh, Hanoch; Bishop, Malachy; Anctil, Tina M.

    2014-01-01

    Purpose: In this article, we describe how four recent models of psychosocial adaptation to chronic illness and disability (CID) could be fruitfully conceptualized and compared by resorting to the general framework of Lewin's field theory--a theory frequently regarded as a precursor and the primary impetus to the development of the field of…

  9. Similar or Different?: A Comparative Analysis of Higher Education Research in Political Science and International Relations between the United States of America and the United Kingdom

    Science.gov (United States)

    Blair, Alasdair

    2015-01-01

    This article focuses on the nature of the writing in 73 articles published in six U.S. and U.K. political science and international relations journals that focus on teaching and learning. A comparative analysis is made of the articles through a review of the characteristics of the authors, the themes researched, the analytical focus, the research…

  10. Little People of America

    Science.gov (United States)

    ... information. World Dwarf Games 2017 Welcome to Little People of America Little People of America (LPA) is a nonprofit organization that provides support and information to people of short stature and their families. LPA is ...

  11. [Comparative research into the process of forming the theory of constitution in ancient western medicine and that of four trigrams constitution in Korean medicine and contents of two theories of constitution].

    Science.gov (United States)

    Park, Joo-Hong

    2009-06-01

    After conducting comparative research into the process of forming the Theory of Constitution in Ancient Western Medicine and that of Four Trigrams Constitution(Sasang Constitution) in Korean Medicine and contents of two Theories of Constitution in terms of medical history, both theories were found to be formed by an interaction between philosophy and medicine, followed by a combination of the two, on a philosophical basis. The Theory of Constitution in Ancient Western Medicine began with the Theory of Four Elements presented by Empedocles, followed by the Theory of Four Humors presented by Hippocrates and the Theory of Four Temperaments by Galenos, forming and developing the Theory of Constitution. After the Middle Ages, there was no significant advance in the Theory of Constitution by modern times ; however, it developed into the theory of constitution type of Kretschmer and others after the 19th century and into the scientific theory of constitution based on genetics presented by Garrod and others early in the 20th century. The Theory of Four Trigrams Constitution began with the Theory of Constitution in Huangdi Neijing, followed by developments and influences of existing medicine called beginning, restoration, and revival periods and DongeuisoosebowonSaSangChoBonGwon based on the original philosophy of Four Trigrams presented by Lee Je-ma, which is found in GyeokChiGo, DongMuYuGo and so on, ultimately forming and developing into the Theory of Four Trigrams Constitution in Dongeuisoosebowon. Recently, a lot of research is being conducted into making it objective in order to achieve reproducibility in diagnosis and so forth of Four Trigrams Constitution.

  12. Market Openness and Culture as Factors that Shape the Gender Gap: a Comparative Study of Urban Latin America and East Asia (1960-2000)

    OpenAIRE

    Enriqueta Camps

    2013-01-01

    In this paper we present: 1. The available data on comparative gender inequality at the macroeconomic level and 2. Gender inequality measures at the microeconomic and case study level. We see that market openness has a significant effect on the narrowing of the human capital gender gap. Globalization and market openness stand as factors that improve both the human capital endowments of women and their economic position. But we also see that the effects of culture and religious beliefs are ver...

  13. 中美青少年科技竞赛奖励政策比较研究%A Comparative Study on Prize Policy of the Youth Science Technology Competitions between China and America

    Institute of Scientific and Technical Information of China (English)

    薛海平; 胡咏梅

    2013-01-01

      青少年科技竞赛活动是中美两国科技创新后备人才选拔和培养的重要途径。英特尔国际科学与工程大奖赛和科学人才选拔赛是美国两大著名青少年科技竞赛项目,借鉴这两项竞赛项目设立的青少年科技创新大赛和“明天小小科学家”奖励活动是目前中国最具影响力的两项青少年科技竞赛项目。本文从奖项类型、获奖等级配置、奖励形式、奖励对象四个方面对中美青少年科技竞赛项目的奖励政策进行了比较研究,并提出了规范奖励政策、丰富奖励形式、优化奖项设置结构等完善我国青少年科技竞赛奖励政策的政策建议。%The youth science technology competition is the important approach to choosing and fostering reserve talents for the innovation of science technology in China and America. ISEF and STS are two important competitions in America, while CASTIC and APFS are two competitions of great importance in China. This paper describes an overview of four competitions and makes a comparative study between China and America on the prize policy of the youth science technology competitions according to prize type, prize grade scheme, prize form and prize object. Several policy suggestions are put forward to improve the prize policy of the youth science technology competitions in China, such as normalizing prize policy, enriching prize form and optimizing prize grade scheme.

  14. Welcome to America, welcome to college: Comparing the effects of immigrant generation and college generation on physical science and engineering career

    Science.gov (United States)

    Lung, Florin; Potvin, Geoff; Sonnert, Gerhard; Sadler, Philip M.

    2013-01-01

    Students enter college with social, cultural, and economic resources (well described Bourdieu's concepts of habitus and capital) that significantly impact their goals, actions, and successes. Two important determinants of the amount and type of resources available to students are their immigrant generation and college generation status. Drawing on a national sample of 6860 freshmen enrolled in college English, we compare and contrast the effects of immigrant generation with those of college generation status on physical science and engineering career intentions to explore some of the challenges faced by the first in the family to become an American and/or go to college.

  15. A comparative analysis of chiropractic and general practitioner patients in North America: Findings from the joint Canada/United States survey of health, 2002–03

    Directory of Open Access Journals (Sweden)

    Chiang Lu-May

    2006-04-01

    Full Text Available Abstract Background Scientifically rigorous general population-based studies comparing chiropractic with primary-care medical patients within and between countries have not been published. The objective of this study is to compare care seekers of doctors of chiropractic (DCs and general practitioners (GPs in the United States and Canada on a comprehensive set of sociodemographic, quality of life, and health-related variables. Methods Data are from the Joint Canada/U.S. Survey of Health (JCUSH, 2002–03, a random sample of adults in Canada (N = 3505 and the U.S. (N = 5183. Respondents were categorized according to their pattern of health-care use in the past year. Distributions, percentages, and estimates (adjusted odds ratios weighted to reflect the complex survey design were produced. Results Nearly 80% of respondents sought care from GPs; 12% sought DC care. Compared with GP only patients, DC patients in both countries tend to be under 65 and white, with arthritis and disabling back or neck pain. U.S. DC patients are more likely than GP only patients to be obese and to lack a regular doctor; Canadian DC patients are more likely than GP only patients to be college educated, to have higher incomes, and dissatisfied with MD care. Compared with seekers of both GP and DC care, DC only patients in both countries have fewer chronic conditions, take fewer drugs, and have no regular doctor. U.S. DC only patients are more likely than GP+DC patients to be uninsured and dissatisfied with health care; Canadian DC only patients are more likely than GP+DC patients to be under 45, male, less educated, smokers, and not obese, without disabling back or neck pain, on fewer drugs, and lacking a regular doctor. Conclusion Chiropractic and GP patients are dissimilar in both Canada and the U.S., with key differences between countries and between DC patients who do and do not seek care from GPs. Such variation has broad and potentially far-reaching health policy and

  16. Vanillin and isovanillin: Comparative vibrational spectroscopic studies, conformational stability and NLO properties by density functional theory calculations

    Science.gov (United States)

    Balachandran, V.; Parimala, K.

    This study is a comparative analysis of FT-IR and FT-Raman spectra of vanillin (3-methoxy-4-hydroxybenzaldehyde) and isovanillin (3-hydroxy-4-methoxybenzaldehyde). The molecular structure, vibrational wavenumbers, infrared intensities, Raman scattering activities were calculated for both molecules using the B3LYP density functional theory (DFT) with the standard 6-311++G∗∗ basis set. The computed values of frequencies are scaled using multiple scaling factors to yield good coherence with the observed values. The calculated harmonic vibrational frequencies are compared with experimental FT-IR and FT-Raman spectra. The geometrical parameters and total energies of vanillin and isovanillin were obtained for all the eight conformers (a-h) from DFT/B3LYP method with 6-311++G∗∗ basis set. The computational results identified the most stable conformer of vanillin and isovanillin as in the "a" form. Non-linear properties such as electric dipole moment (μ), polarizability (α), and hyperpolarizability (β) values of the investigated molecules have been computed using B3LYP quantum chemical calculation. The calculated HOMO and LUMO energies show that charge transfer occurs within the molecules.

  17. Maier-Saupe model of polymer nematics: Comparing free energies calculated with Self Consistent Field theory and Monte Carlo simulations

    Science.gov (United States)

    Greco, Cristina; Jiang, Ying; Chen, Jeff Z. Y.; Kremer, Kurt; Daoulas, Kostas Ch.

    2016-11-01

    Self Consistent Field (SCF) theory serves as an efficient tool for studying mesoscale structure and thermodynamics of polymeric liquid crystals (LC). We investigate how some of the intrinsic approximations of SCF affect the description of the thermodynamics of polymeric LC, using a coarse-grained model. Polymer nematics are represented as discrete worm-like chains (WLC) where non-bonded interactions are defined combining an isotropic repulsive and an anisotropic attractive Maier-Saupe (MS) potential. The range of the potentials, σ, controls the strength of correlations due to non-bonded interactions. Increasing σ (which can be seen as an increase of coarse-graining) while preserving the integrated strength of the potentials reduces correlations. The model is studied with particle-based Monte Carlo (MC) simulations and SCF theory which uses partial enumeration to describe discrete WLC. In MC simulations the Helmholtz free energy is calculated as a function of strength of MS interactions to obtain reference thermodynamic data. To calculate the free energy of the nematic branch with respect to the disordered melt, we employ a special thermodynamic integration (TI) scheme invoking an external field to bypass the first-order isotropic-nematic transition. Methodological aspects which have not been discussed in earlier implementations of the TI to LC are considered. Special attention is given to the rotational Goldstone mode. The free-energy landscape in MC and SCF is directly compared. For moderate σ the differences highlight the importance of local non-bonded orientation correlations between segments, which SCF neglects. Simple renormalization of parameters in SCF cannot compensate the missing correlations. Increasing σ reduces correlations and SCF reproduces well the free energy in MC simulations.

  18. Acceptance of a food of animal origin obtained through genetic modification and cloning in South America: a comparative study among university students and working adults

    Directory of Open Access Journals (Sweden)

    Berta SCHNETTLER

    2015-09-01

    Full Text Available AbstractWith the aim of comparing the acceptance of milk obtained from cloned, genetically modified (GM and conventionally bred cows among working adults and university students, and identifying and characterizing typologies among both subsamples in terms of their preferences, a survey was applied to 400 people in southern Chile, distributed using a simple allocation among the subsamples. Using a conjoint analysis, it was found that consumers preferred milk from a conventional cow. Using a cluster analysis, in both subsamples two segments sensitive to production technology were identified. Rejection of cloning was greatest among university students, whereas a higher proportion of working adults rejected GM. The segments differed in terms of area of residence, knowledge about GM, and milk consumption habits. Contrary to what was expected, no differences were found according to education, gender or degree of satisfaction with food-related life.

  19. Activity of ceftaroline and comparators against pathogens isolated from skin and soft tissue infections in Latin America - results of AWARE surveillance 2012

    Directory of Open Access Journals (Sweden)

    Daryl Hoban

    2015-12-01

    Full Text Available ABSTRACT As part of the Assessing Worldwide Antimicrobial Resistance Evaluation (AWARE surveillance program in 2012 the in vitro activity of ceftaroline and relevant comparator antimicrobials was evaluated in six Latin American countries (Argentina, Brazil, Chile, Colombia, Mexico and Venezuela against pathogens isolated from patients with hospital associated skin and soft tissue infections (SSTIs. The study documented that ceftaroline was highly active (MIC90 0.25 mg/L/% susceptible 100% against methicillin-susceptible Staphylococcus aureus, methicillin-resistant S. aureus (MIC90 2 mg/L/% susceptible 83.3% and ß-hemolytic streptococci (MIC90 0.008-0.015 mg/L/% susceptible 100%. The activity of ceftaroline against selected species of Enterobacteriaceae was dependent upon the presence or absence of extended-spectrum ß-lactamases (ESBLs. Against ESBL screen-negativeEscherichia coli, Klebsiella pneumoniae, andKlebsiella oxytoca the MIC90 and percent susceptible for ceftaroline were (0.5 mg/L/94.1%, (0.5 mg/L/99.0% and (0.5 mg/L/91.5%, respectively. Ceftaroline demonstrated potent activity against a recent collection of pathogens associated with SSTI in six Latin American countries in 2012.

  20. 美欧转基因食品安全政策比较研究%The Comparation Research about the Genetically Modified Food in Europe and America

    Institute of Scientific and Technical Information of China (English)

    胡日查; 马晨颉

    2014-01-01

    This paper describes the development of genetically modified food security of United States and Europe,the United States and Europe comparative analysis of the characteristics of genetically modified food safety policy and the causes,examine the problems and deficiencies of GM food safety policy exists. So our GM food safety policy development,should be based on the protection of national physical and mental health,through technical support,policy guidance and capacity building,promoting turn commercial application of gene technology research and genetically modified food,to protect our food security and food safety to provide support.%首先阐述了美欧转基因食品安全的发展现状,比较分析美欧转基因食品安全政策特点及形成原因,考察了我国转基因食品安全政策存在的问题和不足。为此,我国转基因食品安全政策制定,应在保障国民身心健康的基础上,通过相关技术支持、政策引导和能力建设,推进转基因技术的研发及转基因食品的商业化应用,为保障我国粮食安全和食品安全提供支撑。

  1. [Inequities in cardiovascular diseases in Latin America].

    Science.gov (United States)

    Fleischer, Nancy L; Diez Roux, Ana V

    2013-01-01

    In high-income countries, social inequalities in cardiovascular disease (CVD) risk are well-documented. Although Latin America has a rich history of theory and conceptual discussion regarding social inequalities in health, empirical research has been more limited. In this commentary we summarize recent empirical work on social inequalities in CVD risk in Latin America, and highlight key research needs as well as implications for prevention. Although much remains unknown about the social patterning of CVD in Latin America, the limited studies to date indicate that inequalities in CVD risk vary across populations and markers of socioeconomic position, as well as disease risk marker. The strongest social inequalities are seen among women, and in urban areas, with regards to obesity, diabetes, and diet. Few studies, though, have been conducted in some parts of Latin America, including the countries of Central America and northern South America. Vital registration systems and nationally-representative risk factor surveys can be important sources of data, as long as information on socioeconomic indicators is collected. Longitudinal studies will also be important for investigating factors driving social inequalities. As policies and prevention strategies are put into place to reduce CVD in Latin America, they must also address factors generating social inequalities in CVD risk.

  2. Compare of the Agronomic Traits among Vegetable Soybeans Introduced from America%美国菜用大豆品种主要农艺性状比较

    Institute of Scientific and Technical Information of China (English)

    薛香; 郜庆炉

    2011-01-01

    The major agronomic traits of 12 varieties of vegetable soybeans introduced from the north-eastern of the U. S. A. Massachusetts were observed and compared with a local species.The results showed that the date of pod setting, seed filling and seed maturing of the main introduced varieties were earlier than that of the local variety. The introduced varieties could be planted in Xinxiang. The whole growth period of M - 1, M - 4, M - 9, M - 20 and M - 24 were 89-106 d and were 11-28d shorter than CK. The pods with 2-3 seeds of M-4,M-9 and M-24 were 58.8-92 and were 3.8-37 more than CK. The seed number per plant of M-1,M-4,M-9 and M - 24 was 127.8-198 and was 9.8-80 more than CK. The grain yield per plant of M - 1, M -4, M - 9, M - 20 and M - 24 was 28.4-54.6 g and was 0.6-26.8 g more than CK. Further studies on varieties of M - 1, M - 4, M - 9, M - 20 and M - 24 should be carried out because of their good representation on the characters of growth period, yield, agronomic and economic traits.%对引自美国东北部麻萨诸塞州的12个菜用大豆品种的主要农艺性状、结荚特性和产量性状进行系统观察,并与当地品种豫豆29号比较,结果表明:引进品种在新乡地区种植后比当地品种表现出早结荚、早鼓粒、早成熟等性状,可以在新乡地区种植.引进品种M-1、M-4、M-9、M-20、M-24的生育期为89~106 d,比对照品种短11~28d;M-4、M-9、M-24的二、三粒荚数为58.8~92个,比对照品种多3.8~37个;M-1、M-4、M-9、M-24的单株粒数为127.8~198粒,比对照品种多9.8~80粒;M-1、M-4、M-9、M-20、M-24的单株籽粒产量28.4~54.6 g,比对照品种高0.6~26.8 g;gk产量、农艺性状、生育期等方面综合考虑,M-1、M-4、M-9、M-20、M-24的主要经济和农艺性状表现较好,可进一步进行引种栽培试验研究.

  3. Motivational Measure of the Instruction Compared: Instruction Based on the ARCS Motivation Theory vs Traditional Instruction in Blended Courses

    Science.gov (United States)

    Colakoglu, Ozgur M.; Akdemir, Omur

    2012-01-01

    The ARCS Motivation Theory was proposed to guide instructional designers and teachers who develop their own instruction to integrate motivational design strategies into the instruction. There is a lack of literature supporting the idea that instruction for blended courses if designed based on the ARCS Motivation Theory provides different…

  4. Invalidating stagnation theory for family owned businesses : comparing family-to-family and third party ownership transfers

    NARCIS (Netherlands)

    Heaver, Roger; Ibrahimovic, Alija; Teeffelen, Lex van

    2015-01-01

    Miller, Le Breton-Miller and Scholnick (2008) summarize and discuss two major perspectives constructed from the literature on family owned businesses (FOBs): stewardship and stagnation theory. In this paper the stagnation theory is being put to the test on Dutch small/medium enterprises (SMEs). Acco

  5. [The demographic transition in Latin America and Europe].

    Science.gov (United States)

    Zavala De Cosio, M E

    1992-12-01

    This work describes and analyzes the "European model of demographic transition" and compares it to the fertility transition in Latin America, arguing that two different types of demographic transition coexist in Latin America. Chesnais has defined 3 principal postulates of the theory of demographic transition that he believes are universally valid: the precedence in time of mortality decline; the occurrence of reproductive transition in 2 phases, limitation of marriages followed by limitation of births; and the influence of economic growth on the initiation of the secular fertiilty decline. This work is largely limited to discussion of the first 2 postulates. In all the European transitions analyzed, mortality has declined before the occurrence of fertility changes. Exceptions cited in the literature have probably been caused by omissions or other problems in the data. The level of mortality at the beginning of the transition and the rate of decline differ, giving unique character to each transition. Imbalances resulting from mortality decline are at the root of modern fertility transitions. The French demographic transition was distinguished by early appearance of birth limitation by married couples, as part of the regulation of population growth. In the rest of Europe, during the pretransitional period, the traditional system of reproduction was regulated primarily by control of nuptiality. Only at a second stage was marital fertiity controlled, when limitation of marriage was no longer sufficient or had exceeded the limits of social acceptability. All countries of Northern and Western Europe recorded increased proportions definitively single as the demographic situation began to change, until the moment when couples began to limit births. The demographic transition in Latin America began at the end of the 19th century, with mortality decline. Fertility increased initially in Latin America as it had in Europe and for the same reasons, but the impact was greater

  6. Gangs in Central America

    Science.gov (United States)

    2008-10-17

    Citizen Security held in July 2008 indicated that Guatemala now has the second highest murder rate in Central America (roughly 45 per 100,000 people...training regional security forces.48 In recent years, the U.S. Southern Command has taken a leading role in discussing the problem of citizen security in...the results CRS-19 51 “Memo: The Merida Initiative and Citizen Security in Mexico and Central America,” Washington Office on Latin America, March 2008

  7. Comparative Study on Consumer Education of Online Drugs Purchase Between China and America%我国与美国网上购药消费者教育方面的比较及启示

    Institute of Scientific and Technical Information of China (English)

    宿凌

    2011-01-01

    目的:为我国完善网上购药消费者教育提供参考.方法:分析我国与美国网上购药消费者教育方面的资料,比较消费者教育主体、合法与非法网上药房辫别教育、非法销售药品网站投诉与报告途径等情况.结果与结论:我国应借鉴美国在网上购药消费者教育方面的经验,增加消费者教育的内容和形式,加大非法药品销售网站曝光的力度,增设消费者投诉和报告的途径.%OBJECTIVE: To provide reference for perfecting consumer education of online drugs purchase in China. METHODS: The information about consumer education of online drugs purchase in China and America were analyzed, and education subject, legal and illegal online pharmacies identification, complaint and report of illegal drugs sale websites were compared. RESULTS & CONCLUSIONS: China should follow American experience in consumer education of online drugs purchase, increase the contents and ways of consumer education, enhance the disclosure degree of illegal drugs sale websites, and add more complaining and reporting methods for consumers.

  8. Influence of the fluid structure on the binding potential: Comparing liquid drop profiles from density functional theory with results from mesoscopic theory

    Science.gov (United States)

    Hughes, Adam P.; Thiele, Uwe; Archer, Andrew J.

    2017-02-01

    For a film of liquid on a solid surface, the binding potential g(h) gives the free energy as a function of the film thickness h and also the closely related (structural) disjoining pressure Π =-∂g /∂h . The wetting behaviour of the liquid is encoded in the binding potential and the equilibrium film thickness corresponds to the value at the minimum of g(h). Here, the method we developed in the work of Hughes et al. [J. Chem. Phys. 142, 074702 (2015)], and applied with a simple discrete lattice-gas model, is used with continuum density functional theory (DFT) to calculate the binding potential for a Lennard-Jones fluid and other simple liquids. The DFT used is based on fundamental measure theory and so incorporates the influence of the layered packing of molecules at the surface and the corresponding oscillatory density profile. The binding potential is frequently input in mesoscale models from which liquid drop shapes and even dynamics can be calculated. Here we show that the equilibrium droplet profiles calculated using the mesoscale theory are in good agreement with the profiles calculated directly from the microscopic DFT. For liquids composed of particles where the range of the attraction is much less than the diameter of the particles, we find that at low temperatures g(h) decays in an oscillatory fashion with increasing h, leading to highly structured terraced liquid droplets.

  9. One electron oxygen reduction in room temperature ionic liquids: A comparative study of Butler-Volmer and Symmetric Marcus-Hush theories using microdisc electrodes

    CERN Document Server

    Tanner, Eden E L; Barnes, Edward O; Compton, Richard G

    2015-01-01

    The voltammetry for the reduction of oxygen at a microdisc electrode is reported in two room temperature ionic liquids: 1-butyl-1-methylpyyrolidinium bis(trifluoromethylsulfonyl) imide ([Bmpyrr][NTf2]) and trihexyltetradecylphosphonium bis9trifluoromethylsulfonyl) imide ([P14,6,6,6][NTf2]) at 298 K. Simulated voltammograms using Butler-Volmer theory and Symmetric Marcus-Hush (SMH) theory were compared with experimental data. Butler-Volmer theory consistently provided experimental parameters with a higher level of certainty than SMH theory. A value of solvent reorganisation energy for oxygen reduction in ionic liquids was inferred for the first time as 0.4-0.5 eV, which is attributable to inner-sphere reorganisation with a negligible contribution from solvent reorganisation. The developed Butler-Volmer and Symmetric Marcus-Hush programs are also used to theoretically study the possibility of kinetically limited steady state currents, and to establish an approximate equivalence relationship between microdisc el...

  10. Finite element modelling versus classic beam theory: comparing methods for stress estimation in a morphologically diverse sample of vertebrate long bones.

    Science.gov (United States)

    Brassey, Charlotte A; Margetts, Lee; Kitchener, Andrew C; Withers, Philip J; Manning, Phillip L; Sellers, William I

    2013-02-01

    Classic beam theory is frequently used in biomechanics to model the stress behaviour of vertebrate long bones, particularly when creating intraspecific scaling models. Although methodologically straightforward, classic beam theory requires complex irregular bones to be approximated as slender beams, and the errors associated with simplifying complex organic structures to such an extent are unknown. Alternative approaches, such as finite element analysis (FEA), while much more time-consuming to perform, require no such assumptions. This study compares the results obtained using classic beam theory with those from FEA to quantify the beam theory errors and to provide recommendations about when a full FEA is essential for reasonable biomechanical predictions. High-resolution computed tomographic scans of eight vertebrate long bones were used to calculate diaphyseal stress owing to various loading regimes. Under compression, FEA values of minimum principal stress (σ(min)) were on average 142 per cent (±28% s.e.) larger than those predicted by beam theory, with deviation between the two models correlated to shaft curvature (two-tailed p = 0.03, r(2) = 0.56). Under bending, FEA values of maximum principal stress (σ(max)) and beam theory values differed on average by 12 per cent (±4% s.e.), with deviation between the models significantly correlated to cross-sectional asymmetry at midshaft (two-tailed p = 0.02, r(2) = 0.62). In torsion, assuming maximum stress values occurred at the location of minimum cortical thickness brought beam theory and FEA values closest in line, and in this case FEA values of τ(torsion) were on average 14 per cent (±5% s.e.) higher than beam theory. Therefore, FEA is the preferred modelling solution when estimates of absolute diaphyseal stress are required, although values calculated by beam theory for bending may be acceptable in some situations.

  11. America's Children and the Environment

    Science.gov (United States)

    ... Protection Agency Search Search America's Children and the Environment (ACE) Share Facebook Twitter Google+ Pinterest Contact Us ... of updates to ACE . America's Children and the Environment (ACE) America's Children and the Environment (ACE) is ...

  12. Geometrical and P.D.E. Methods in the Treatment of the Theory of Shells: Comparing Euclidean and Affine Approaches

    Directory of Open Access Journals (Sweden)

    Salvador Gigena

    2014-01-01

    Full Text Available The use of differential equations methods in the approach, treatment, and solution of problems in diverse areas of geometry, particularly in affine differential geometry is well known and prolific, where they have proven to be quite fruitful when it comes to the obtainment of definite results. It is perhaps lesser known that the same kind of those very same methods has been and is currently being used to treat developments in some specific areas of applied sciences, such as the theory of shells where, similarly, they can be proven to be quite effective as well. In this paper we precisely show that such is the case in two particular, related instances: the historic approach of the classical, Euclidean part of the theory pursued by Fritz John, in the past century, and the more recent expositions that we ourselves have dedicated to the affine counterpart of the theory.

  13. Demographic tensions in Central America.

    Science.gov (United States)

    1986-08-01

    disproportionately benefits high and middle income groups, thereby widening the already large gap between rich and poor. Average per capita income for the poorest 20% of Central Americans is $90 a year (in 1970 US dollars); over half subsist on an average of $200 a year. Central America's economic crisis is further intensified by the marked increase in the economically active population. Doubling in size from about 2.1 million in 1970 to 4.2 million in 1985, the labor force increasingly pressures an economy already weakened by high unemployment and underemployment. Socioeconomically advanced Costa Rica and Panama are Central America's notable exceptions. Life expectancy at birth and infant mortality rates for these better off countries, e.g., are comparable to those of developed countries. Costa Ricans enjoy the most equitable distributional income of all Central Americans. Panama's income differential is 1 of the widest in the world, but its relative wealth affords more for each of its citizens.

  14. 中美图书馆少年儿童服务实践若干对比研究%A Comparative Study on Library Services Practice for Children and Teens in China and America

    Institute of Scientific and Technical Information of China (English)

    王平

    2012-01-01

    Library services for children and teens is an important part in library service innovation. By comparing library services for children and teens in China and America, there are many differences in practical content and service ideas. Limitations are as follows: cognition blind spots in service missions, subject-collecting of users and stylization of service content. It should put importance on following contents : the historical and pratical factors on demestic library services for chilolren and teens, the relation between library services for children and teens and education system, the relation between library services for children and teens and social changes, and innovative models and cases of library services for children and teens.%认为图书馆少年儿童服务是图书馆服务变革中的重要内容;通过网络抽样调查,发现中关图书馆少儿服务在实践内容和服务理念上存在巨大差别,国内存在服务使命的认知盲点和断代性、服务对象的有选择性和服务内容的程式化等问题;提出国内图书馆少儿服务的历史和现实诱因、国内图书馆少儿服务与国内教育制度之间的关系、国内图书馆少儿服务与社会变革之间的联系和国内图书馆少儿服务创新的模式与范例应成为未来研究的方向。

  15. A Comparative Analysis of Multiple Intelligence Theory with Relationship to Gender and Grade Level in Selected Schools in Ghana

    Science.gov (United States)

    Oteng, Ellen N.

    2012-01-01

    This dissertation examined the relationships between Howard Gardner's Multiple Intelligence Theory and students' gender, age, grade level, and enrollment into a public or private school. The research determined students' dominant intelligences and investigated whether students' intelligences may be influenced by demographic…

  16. A Comparative Analysis of Theory of Moral Cognitive Development and Theory of Values Clarification%道德认知发展理论与价值澄清理论的比较分析

    Institute of Scientific and Technical Information of China (English)

    雷娟

    2011-01-01

    道德认知发展理论和价值澄清理论对世界德育发展和我国德育改革都影响深远,本文试图通过分析和比较二者的内在联系与各自特色,从中得出有益于我国德育改革与发展的经验与启示。%Theory of moral cognitive development and theory of value clarification have a far-reaching influence on the development of moral education in the world and moral education reform in China.This paper attempts to summarize some beneficial experience and enlightenment for China's moral education reform through the comparative analysis of the interrelations between the two theories and their own characteristics.

  17. Comparative Studies of 1,4-Bis[ 2-(4-Pyridyl) ethenyl ]-benzene Using Density Functional Theory

    Institute of Scientific and Technical Information of China (English)

    CHENG Jian-bo; L(U) Jia-ping; GONG Bao-an; LI Wen-zuo

    2007-01-01

    The optimized molecular structure and harmonic vibrational frequencies of a 1,4-bis [ 2-( 4-pyridyl ) ethenyl ] -benzene(BPENB) molecule were calculated via five popular density functional theory(DFT) methods. On the basis of the comparison between calculated and experimental results, it is concluded that the B3PW91 and B3LYP methods are superior to the others in optimizing structures, and the BPW91 method reproduces the observed fundamental frequencies most satisfactorily.

  18. 反思教学论研究——基于比较教学论的视角%Reflections on Teaching Theory Research: From the Perspective of Comparative Teaching Theory

    Institute of Scientific and Technical Information of China (English)

    丁邦平

    2012-01-01

    世纪之交,我国教学论界开始对教学论学科建设及其问题进行多雏度、多视角的反思,这种反思促进了教学论研究的深化。但是这些反思大多是从“局内人”的视角进行的,而从跨文化比较的角度进行反思的研究尚不多见。为此,有必要基于比较教学论的视角,从教学论核心概念与术语、教学论研究体制及其实践情境、教学论研究主体与接受主体三个方面进行跨文化的比较性反思,以期进一步深化对我国教学论的元研究。%Since the turn of the century, China's teaching theory research community has begun to reflect on the discipline construction of teaching theory and its problems from multi-dimension perspectives, which deepens the research on teaching theory. Most of the reflections, however, have been conducted from the insiders' points of view and more comprehensive, in-depth reflections are needed from a cross-cultural perspective. This article attempts to reflect on the following three aspects of teaching theory research from the cross-cultural perspective of comparative teaching theory: the basic concepts and terms used, the system and the practical context in which teaching theory research is conducted, and both research subjects and receptive subjects in teaching theory, in the hope that this will deepen the meta-research of teaching theory in China.

  19. Helioclimatology of the Americas

    Science.gov (United States)

    Nurtaev, B. S.; Yakubov, M.; Shermatov, E.

    2013-05-01

    During the last 4 billion years, the Earth's climate has changed many times. There have been periods of warming and there have been ice ages. These large-scale climatic changes are shaped by factors like the tilt of the Earth's axis and tectonic plate movement. These major changes were driven by cyclical changes in the Earth's orbit, which altered the distribution of solar energy between the seasons and across the Earth. Milankovitch cycles explain well changes in climate over periods hundreds of thousands of years and are related to ice age cycles, but these cycles cannot explain the current rapid warming. The Sun is the most driving force for causing climate change. Much of the Sun energy evaporates water and causes atmospheric convection. Solar radiation, general circulation of atmosphere, geographical location of continents, oceans and the largest forms of a relief are the primary factors influencing on climate of lands. The purpose of this study is to identify contribution of the Sun on climate variability in the two continents, North and South America during instrumental records of air temperature. There were compared air temperatures of different weather stations in dependence from solar activity during the period 1878-1996. The high correlation between averaged temperature and solar activity was found for many weather stations of Americas. Air temperature in dependence from solar activity over the period 1878-1996 can be described by following equations: In Buenos Aires: T° = 0,04W+ 15,05, r-0,9; Caracas, Venezuela: T° = 0,03W + 18,88, r-0,73; Cordoba, Argentina: T° = 0,03W + 16,16, r-0,93; New York, Central Park: T° = 0,04W + 9,86, r-0,82; Toronto, T = 0,03W+ 6,66, r-0,81; Santiago Pudahuel, T= 0,019W + 13, 01, r - 0, 91; Rio de Janeiro:T°= 0,02W + 21,95, r= 0,88; Mexico over 1923-1986, T°= 0,021W+ 14,05, r-0,78; Miami over 1902-1996, T = 0,012W + 12,87 r-0,75; In our study, we used stations with reasonably long, consistently measured time records

  20. America in the Eyes of America Watchers:

    DEFF Research Database (Denmark)

    Feng, Huiyun; He, Kai

    2015-01-01

    that almost half of the survey participants thought that America would remain the global hegemon in the next ten years. Meanwhile, a large majority was also optimistic that China is a rising great power, especially in the economic sense, in the world. More than half of the respondents saw Asian military......Based on an original survey conducted in the summer of 2012 in Beijing, we examine how China's America watchers—IR scholars who work on US-China relations—have viewed China's power status in the international system, US-China relations and some specific US policies in Asia. Our survey shows...... issues, such as the South China Sea issue, as the most difficult problem between China and the US....

  1. Lupus Foundation of America

    Science.gov (United States)

    ... and Testing New Treatments Learn More About the Lupus Foundation of America We are devoted to solving ... Spam Control Text: Please leave this field empty Lupus FAQ What is lupus? What are the common ...

  2. Prevent Child Abuse America

    Science.gov (United States)

    ... call the police . Crisis and support contacts For Child Abuse Reporting Numbers in your State please visit: Child ... suspected child abuse and neglect. Parent Resources Prevent Child Abuse America (800) CHILDREN A resource for tips, referrals, ...

  3. Enhancement of responding to A after A+/AX+ training: challenges for a comparator theory of learning.

    Science.gov (United States)

    Esber, Guillem R; Pearce, John M; Haselgrove, Mark

    2009-10-01

    Two appetitive Pavlovian conditioning experiments with rats investigated the associative changes that A undergoes in an A+/AX+ blocking procedure. Conditioned responding to A was enhanced relative to stimulus B, which had been conditioned in isolation (B+). This result was interpreted in terms of the formation of a within-compound association between A and X. The results of Experiment 2 supported this conclusion by demonstrating that X had associative strength of its own and, furthermore, that extinguishing X resulted in a similar level of responding to A and B. These results are considered in terms of retrospective revaluation theories of learning.

  4. Government and Market:Evolution of Theory,Progress Made in America,Reform in China%政府与市场:理论演进、美国改进、中国改革

    Institute of Scientific and Technical Information of China (English)

    张思锋; 王舟浩; 张立

    2015-01-01

    如何界定市场与政府的关系一直是经济学说史上争论不休的核心话题,也是20世纪30年代以来很多国家经济发展过程难以回避的重大问题。通过对政府与市场关系的理论演进与理论体系的梳理,分析了20世纪30年代中期开始的美国调节政府与市场关系的改进历程;研究了20世纪70年代末期开始的中国社会主义市场经济体制建设中政府与市场关系的改革进程;阐释了作者对政府与市场关系的观点。认为,市场经济发展的普遍规律在不同国家的不同发展阶段必然表现出各自的特殊性。合适的就是最好的,检验一国政府与市场的关系是否合适的标准是,综合国力是否不断提高,人民生活是否不断改善,经济、政治、社会、文化、生态是否可持续发展。%How to define the relationship between the government and the market is not only a hot issue in the history of economic theory but also a significant problem which cannot be avoided in the process of economic development in many countries since 1930s.By reviewing the evolution of the theory of the relationship between the government and the mar-ket,on the basis of the research of the history of the reform of the adjustment of the relationship of the government and the market made in America since the middle of 1930s,and through the research of the steps taken in the construction of the China′s socialist market economic system since the end of 1970s,the author interprets his viewpoints of the relation-ship between the market and the government.That is the economic development in different phases in different countries features diversified characteristics.The only standard to examine the relationship of the government and the market is the enhancement of the comprehensive national strength,the improvement of people′s life and the sustained development of economy,politics,social culture and the ecological system.

  5. 中美青少年科技竞赛筛选机制的比较研究%A Comparative Study on Screening Mechanism of the Youth Science and Technology Competitions in China and America

    Institute of Scientific and Technical Information of China (English)

    李冬晖; 胡咏梅

    2012-01-01

    CASTIC and APFS are two youth science and technology competitions of great importance in China. ISEF and STS ale. two important competitions in America. This paper makes a Sino-US comparative study of the screening mechanism. On the basis of the study, some suggestions have been put forward. (1) To simplify the assessment part of our competitions and improve the effectiveness of the overall quality assessment. (2) To refine evaluation criteria, extend assessment dimensions and set the dimensions' weights with the scientific method. (3) To expand the provincial assessor scope of CASTIC and share provincial assessors as soon as possible. (4) To strengthen the provincial assessor training to ensure the orderly and efficient conducting of assessment.%青少年科技创新大赛、"明天小小科学家"奖励活动是中国最具影响力的两个青少年科技赛事,英特尔国际科学与工程学大赛、美国科学人才选拔赛是美国的两大知名赛事。本研究从竞赛阶段类型、筛选形式、评审环节和评审标准4个角度,对以上竞赛的筛选机制进行了深入比较,并在此基础上提出如下建议:(1)简化竞赛的评审环节,提高综合素质考察环节的有效性;(2)细化评审标准,扩展评审维度,科学设定各维度权重;(3)扩大省赛评委的选择范围,实现各省评委的共享;(4)加强省赛评委的培训。

  6. Derechos de propiedad, herencia de las esposas e igualdad de género: aspectos comparativos entre Brasil e Hispanoamérica Property Rights, Inheritance by Wives and Gender Equality: Brazil and Hispanic America in Comparative Perspective

    Directory of Open Access Journals (Sweden)

    CARMEN DIANA DEERE

    2001-01-01

    Full Text Available En América Latina durante el curso del siglo XX se lograron considerables avances para fortalecer los derechos de propiedad de la mujer casada. Sin embargo, se ha prestado atención limitada a los derechos de herencia de las esposas. La revisión de las normas legales en doce países permite argumentar que las viudas están a menudo en una posición de desventaja en comparación con las hijas/os de la pareja. Las normas sobre herencia no fueron diseñadas para dar a las viudas la posibilidad de autonomía económica, por medio del control de la finca familiar o los negocios. Si se tiene en cuenta la diferencia de género a favor de la mujer en la expectativa de vida y la cobertura limitada de las mujeres en la seguridad social (especialmente las rurales en la mayoría de los países, las mujeres son particularmente vulnerables cuando enviudan. Es urgente que el movimiento de mujeres tenga en cuenta en su agenda el tema de los derechos de herencia, en razón de que su fortalecimiento es necesario para el logro de la redistribución de la propiedad y de una al igualdad de géneroConsiderable gains were made in Latin America over the course of the twentieth century in strengthening the property rights of married women. Insufficient attention, nonetheless, has been given to the inheritance rights of wives. Reviewing the legal norms for twelve countries, it is argued that widows are often in a disadvantaged position compared to the children of a couple. Inheritance norms were not designed to give widows the possibility for economic autonomy, such as through control of the family farm or business. Moreover, given the gender gap favoring women in the lengthening of life spans and the low coverage of social security (particularly in rural areas in most countries, they are particularly vulnerable when they are widowed. The women's movement is urged to take on the issue of inheritance rights since strengthening these are necessary to achieve a

  7. Possibility Theory versus Probability Theory in Fuzzy Measure Theory

    Directory of Open Access Journals (Sweden)

    Parul Agarwal

    2015-05-01

    Full Text Available The purpose of this paper is to compare probability theory with possibility theory, and to use this comparison in comparing probability theory with fuzzy set theory. The best way of comparing probabilistic and possibilistic conceptualizations of uncertainty is to examine the two theories from a broader perspective. Such a perspective is offered by evidence theory, within which probability theory and possibility theory are recognized as special branches. While the various characteristic of possibility theory within the broader framework of evidence theory are expounded in this paper, we need to introduce their probabilistic counterparts to facilitate our discussion.

  8. A Comparative Analysis of Motivation Theory in Universities and Enterprises%激励理论在高校与企业中的比较分析

    Institute of Scientific and Technical Information of China (English)

    李庆国

    2012-01-01

    At present,Chinese universities attach more and more importance to teachers' long effect motivation.Although it is still new in theory,long effect motivation and its theory have been attached more importance to in enterprises.Relevant studies have been undertaken deeply for a long time.Therefore,enterprise long effect motivation practice and theory are of positive reference significance.Based on Induction logic of management psychological motivation theory and interests of association logic incentive theory in economics,this paper undertakes a comparative study of university and enterprise as well as a comparative study of the intended end user role of university and enterprise long effect motivation mechanism.The study proves that it is unsuitable for university to use stock incentive mechanism.%目前我国高校越来越重视对教师的长效激励。高校长效激励在理论上还是崭新的,但长效激励及其理论与实践在企业中备受重视,相关研究已经很深入了。所以企业的长效激励实践与理论对于高校而言有着积极的借鉴意义。本文基于心理诱导逻辑的管理学激励理论和利益关联逻辑的经济学激励理论,对高校和企业的激励进行比较研究,并对高校和企业长效激励机制适用对象进行了比较分析,研究发现,高校不适合使用股权激励机制。

  9. 比较优势理论的沿承、发展与创新%The Inheritance, Development and Innovation of the Theory of Comparative Advantage

    Institute of Scientific and Technical Information of China (English)

    郭界秀

    2014-01-01

    作为主流贸易理论的基石,比较优势理论随着经济实践的变化不断发展、扩展、更新,从不同视角表现出新的活力。本文从比较优势理论的基本构成出发,循着比较优势理论发展的基本路径,梳理总结了围绕比较优势基础模型所取得的外延扩展研究方面的新成果,并探析了比较优势理论内涵式创新研究的新进展,最后对比较优势理论研究成果和未来研究方向进行了简单评述。%As the cornerstone of the mainstream theory of international trade , the comparative advantage theory always maintains sustained development , expansion and updation with the change of economic practice, embodying new vitality from different aspects .Firstly, this paper analyzes the structure of the theory of comparative advantage .Then it explores the basic development path of the theory , and investi-gates the new extensive achievements made about basic models .The fourth part focuses on the intensive innovation of recent studies .Finally, this paper will make some comments on the research results and the future research about this theory .

  10. MOTIVATIONAL MEASURE OF THE INSTRUCTION COMPARED: Instruction Based on the ARCS Motivation Theory V.S. Traditional Instruction in Blended Courses

    Directory of Open Access Journals (Sweden)

    Ozgur M. COLAKOGLU

    2010-04-01

    Full Text Available The ARCS Motivation Theory was proposed to guide instructional designers and teachers who develop their own instruction to integrate motivational design strategies into the instruction. There is a lack of literature supporting the idea that instruction for blended courses if designed based on the ARCS Motivation Theory provides different experiences for learners in terms of motivation than instruction developed following the standard instructional design procedure for blended courses. This study was conducted to compare the students’ motivational evaluation of blended course modules developed based on the ARCS Motivation Theory and students’ motivational evaluation of blended course modules developed following the standard instructional design procedure. Randomly assigned fifty junior undergraduate students studying at the department of Turkish Language and Literature participated in the study. Motivation Measure for the Blended Course Instruction (MMBCI instrument was used to collect data for the study after the Confirmatory Factor Analysis (CFA. Results of the study indicated that designing instruction in blended courses based on the ARCS Motivation Theory provides more motivational benefits for students and consequently contributes student learning.

  11. Convergence Patterns in Latin America

    DEFF Research Database (Denmark)

    Quiroga, Paola Andrea Barrientos

    Literature on convergence among Latin American countries is still scarce compared to other regions. Moreover, almost none of the research connects convergence to the economic history of Latin America and the usual finding is one speed of convergence. In this paper I analyze 32 countries and 108...... years, more observations than any other study. This long span of data allows me to use economic history to explain, analyze, validate, and understand the results of convergence patterns in the region. I find more than one speed of convergence (clubs) related to the known historical background, country...

  12. Vibrational properties of SrCu{sub 2}O{sub 2} studied via Density Functional Theory calculations and compared to Raman and infrared spectroscopy measurements

    Energy Technology Data Exchange (ETDEWEB)

    Even, J., E-mail: jacky.even@insa.rennes.fr [Université Européenne de Bretagne, INSA, FOTON, UMR CNRS 6082, 20 Avenue des Buttes de Coësmes, F-35708 Rennes (France); Pedesseau, L.; Durand, O. [Université Européenne de Bretagne, INSA, FOTON, UMR CNRS 6082, 20 Avenue des Buttes de Coësmes, F-35708 Rennes (France); Modreanu, M. [Tyndall National Institute, Lee Maltings, Prospect Row, Cork (Ireland); Huyberechts, G. [FLAMAC, Technologiepark 903, 9052 Zwijnaarde (Belgium); Servet, B. [Thales Research and Technology France, Campus Polytechnique, 1, avenue Augustin Fresnel, 91767 Palaiseau cedex France (France); Chaix-Pluchery, O. [Laboratoire des Matériaux et du Génie Physique, Grenoble INP—Minatec, 3, parvis Louis Néel, BP 257, 38016 Grenoble Cedex 1 (France)

    2013-08-31

    The SrCu{sub 2}O{sub 2} material is a p-type transparent conductive oxide. A theoretical study of the SrCu{sub 2}O{sub 2} crystal is performed with a state of the art implementation of the Density Functional Theory. The simulated crystal structure is compared with available X-ray diffraction data and previous theoretical modeling. Density Functional Perturbation Theory is used to study the vibrational properties of the SrCu{sub 2}O{sub 2} crystal. A symmetry analysis of the optical phonon eigenvectors at the Brillouin zone center is proposed. The Raman spectra simulated using the derivatives of the dielectric susceptibility, show a good agreement with Raman scattering experimental results. - Highlights: ► The symmetry properties of the optical phonons of the SrCu{sub 2}O{sub 2} crystal are analyzed. ► Born charges and the dynamical matrix are calculated at the Brillouin zone center. ► Density Functional Perturbation Theory (DFPT) is used to compute Raman spectrum. ► DFPT Raman spectrum is compared with experimental results.

  13. Proposing a sequential comparative analysis for assessing multilateral health agency transformation and sustainable capacity: exploring the advantages of institutional theory

    Science.gov (United States)

    2014-01-01

    Background This article proposes an approach to comparing and assessing the adaptive capacity of multilateral health agencies in meeting country and individual healthcare needs. Most studies comparing multilateral health agencies have failed to clearly propose a method for conducting agency comparisons. Methods This study conducted a qualitative case study methodological approach, such that secondary and primary case study literature was used to conduct case study comparisons of multilateral health agencies. Results Through the proposed Sequential Comparative Analysis (SCA), the author found a more effective way to justify the selection of cases, compare and assess organizational transformative capacity, and to learn from agency success in policy sustainability processes. Conclusions To more affectively understand and explain why some multilateral health agencies are more capable of adapting to country and individual healthcare needs, SCA provides a methodological approach that may help to better understand why these agencies are so different and what we can learn from successful reform processes. As funding challenges continue to hamper these agencies' adaptive capacity, learning from each other will become increasingly important. PMID:24886283

  14. A Study of Afro-American Feminist Criticism in America

    Institute of Scientific and Technical Information of China (English)

    2007-01-01

    <正>Specialty:Comparative Literature and World Literature This dissertation is meant to make a systematic inquiry into the critical thoughts of Black feminist criticism in America.As the representative of the Third World feminist criticism,Black feminist criticism in America has become an indispensable

  15. Comparative Analysis of Working Status of Clinical Research Coordinator (CRC) During Clinical Trials in China and the United State of America%中美临床试验协调员工作现状比较分析

    Institute of Scientific and Technical Information of China (English)

    胡牧; 支修益

    2012-01-01

    Analysis of working status of clinical research coordinator during clinical trials in China and United State of America by his experience in training and working is done, to inspire the future work of clinic trails in China.%通过查阅有关CRC的文献资料,并结合笔者在美国参加的CRC培训、参与的美国临床试验过程,以期对我国临床试验未来的发展有些许启示作用.

  16. A comparative review of the role of income inequality in economic crisis theories and its contribution to the financial crisis of 2007-2009

    Directory of Open Access Journals (Sweden)

    Thomas Goda

    2017-03-01

    Full Text Available It is widely accepted that inequality has increased sharply recently in developed countries, but no consensus exists so far about the importance of inequality in the financial crisis of 2007-2009. The aim of this article is to outline and contrast the theoretical underpinnings of Marxian, post-Keynesian, and mainstream crisis theories, and to compare their viewpoints regarding the role that income inequality played in the crisis. The results of this review suggest that, despite important differences in their theoretical concepts, several economists of these three strands offer a similar explanation on why income inequality was an important contributing factor to the financial crisis.

  17. Replacing America's Job Bank

    Science.gov (United States)

    Vollman, Jim

    2009-01-01

    The Job Central National Labor Exchange (www.jobcentral.com) has become the effective replacement for America's Job Bank with state workforce agencies and, increasingly, with community colleges throughout the country. The American Association of Community Colleges (AACC) has formed a partnership with Job Central to promote its use throughout the…

  18. Literacy in South America.

    Science.gov (United States)

    Hornberger, Nancy H.

    1991-01-01

    Literacy in South America must be understood in terms of the linguistic diversity there, where only 2 of 14 nations and territories are monolingual. Oral traditions, standardization of indigenous languages, nonstandard varieties of colonial languages, bilingual education and mother tongue literacy, literacy teaching, and politics are discussed.…

  19. Americas at Odds

    Institute of Scientific and Technical Information of China (English)

    2008-01-01

    Despite lingering disputes,the United States keeps a firm grip on Latin America During his presidential campaign,Evo Morales said his election would be a "nightmare" for the United States.The Bolivian president honored his words. On September 10, Morales declared U.S.

  20. Ecodesign in Central America

    NARCIS (Netherlands)

    Crul, M.R.M.

    2003-01-01

    This PhD thesis describes and analyses the change process started by the Ecodesign project in Central America, executed between 1998 and 2002. The project started using the concept and praxis developed in Europe. Nine ecodesign projects were performed in industry, and ecodesign was introduced to cou

  1. Sarcoma Foundation of America

    Science.gov (United States)

    ... Google+ Twitter LinkedIn YouTube © 2017 Sarcoma Foundation of America | All Rights Reserved. | Terms of Use | Privacy Policy Website Design & Hosting by 270net Technologies, Inc. X - Enter Your Location - - or - Get your current location Home About Us History People Public Filings News & Media SFA in the ...

  2. An Idea Called America

    Science.gov (United States)

    Hartoonian, Michael; Van Scotter, Richard; White, William E.

    2007-01-01

    America evolved out of the principles of the eighteenth-century Enlightenment, suggesting that individuals could govern themselves and that people were "endowed" with "unalienable rights" such as life, liberty, and the pursuit of happiness. To secure these principles, Americans would continue to work on forming a more perfect Union, by…

  3. Lateinamerika oder -amerikas? Latin America or Americas?

    Directory of Open Access Journals (Sweden)

    Ana Belén García Timón

    2008-07-01

    Full Text Available Anhand interdisziplinärer und empirischer Studien wird Lateinamerika als Bühne für die Entwicklung transkultureller Phänomene präsentiert. Geschlechterverhältnisse in unterschiedlichen Kontexten stehen im Mittelpunkt der Untersuchung. Begriffe wie Macht, Rasse oder Raum werden mit dem Ziel, weg von der bisherigen Vorstellung von homogenen kulturellen Einheiten zu kommen, revidiert.Latin America is presented as a stage for the development of transcultural phenomena through the use of interdisciplinary and empirical studies. Gender relations in different contexts lie at the heart of this study. Terms such as power, race, or space are revised with the goal of moving away from current perceptions of homogenous cultural unities.

  4. Methods and theory in bone modeling drift: comparing spatial analyses of primary bone distributions in the human humerus.

    Science.gov (United States)

    Maggiano, Corey M; Maggiano, Isabel S; Tiesler, Vera G; Chi-Keb, Julio R; Stout, Sam D

    2016-01-01

    This study compares two novel methods quantifying bone shaft tissue distributions, and relates observations on human humeral growth patterns for applications in anthropological and anatomical research. Microstructural variation in compact bone occurs due to developmental and mechanically adaptive circumstances that are 'recorded' by forming bone and are important for interpretations of growth, health, physical activity, adaptation, and identity in the past and present. Those interpretations hinge on a detailed understanding of the modeling process by which bones achieve their diametric shape, diaphyseal curvature, and general position relative to other elements. Bone modeling is a complex aspect of growth, potentially causing the shaft to drift transversely through formation and resorption on opposing cortices. Unfortunately, the specifics of modeling drift are largely unknown for most skeletal elements. Moreover, bone modeling has seen little quantitative methodological development compared with secondary bone processes, such as intracortical remodeling. The techniques proposed here, starburst point-count and 45° cross-polarization hand-drawn histomorphometry, permit the statistical and populational analysis of human primary tissue distributions and provide similar results despite being suitable for different applications. This analysis of a pooled archaeological and modern skeletal sample confirms the importance of extreme asymmetry in bone modeling as a major determinant of microstructural variation in diaphyses. Specifically, humeral drift is posteromedial in the human humerus, accompanied by a significant rotational trend. In general, results encourage the usage of endocortical primary bone distributions as an indicator and summary of bone modeling drift, enabling quantitative analysis by direction and proportion in other elements and populations.

  5. Comparing Theory and Experiment for Analyte Transport in the First Vacuum Stage of the Inductively Coupled Plasma Mass Spectrometer

    Science.gov (United States)

    Zachreson, Matthew R.

    The inductively coupled plasma mass spectrometer (ICP-MS) has been used in laboratories for many years. The majority of the improvements to the instrument have been done empirically through trial and error. A few fluid models have been made, which have given a general description of the flow through the mass spectrometer interface. However, due to long mean free path effects and other factors, it is very difficult to simulate the flow details well enough to predict how changing the interface design will change the formation of the ion beam. Towards this end, Spencer et al. developed FENIX, a direct simulation Monte Carlo algorithm capable of modeling this transitional flow through the mass spectrometer interface, the transitional flow from disorganized plasma to focused ion beam. Their previous work describes how FENIX simulates the neutral ion flow. While understanding the argon flow is essential to understanding the ICP-MS, the true goal is to improve its analyte detection capabilities. In this work, we develop a model for adding analyte to FENIX and compare it to previously collected experimental data. We also calculate how much ambipolar fields, plasma sheaths, and electron-ion recombination affect the ion beam formation. We find that behind the sampling interface there is no evidence of turbulent mixing. The behavior of the analyte seems to be described simply by convection and diffusion. Also, ambipolar field effects are small and do not significantly affect ion beam formation between the sampler and skimmer cones. We also find that the plasma sheath that forms around the sampling cone does not significantly affect the analyte flow downstream from the skimmer. However, it does thermally insulate the electrons from the sampling cone, which reduces ion-electron recombination. We also develop a model for electron-ion recombination. By comparing it to experimental data, we find that significant amounts of electron-ion recombination occurs just downstream from the

  6. How to compare scores from different depression scales: equating the Patient Health Questionnaire (PHQ) and the ICD-10-Symptom Rating (ISR) using Item Response Theory.

    Science.gov (United States)

    Fischer, H Felix; Tritt, Karin; Klapp, Burghard F; Fliege, Herbert

    2011-12-01

    A wide range of questionnaires for measuring depression are available. Item Response Theory models can help to evaluate the questionnaires exceeding the boundaries of Classical Test Theory and provide an opportunity to equate the questionnaires. In this study after checking for unidimensionality, a General Partial Credit Model was applied to data from two different depression scales [Patient Health Questionnaire (PHQ-9) and ICD-10-Symptom Rating (ISR)] obtained in clinical settings from a consecutive sample, including 4517 observations from a total of 2999 inpatients and outpatients of a psychosomatic clinic. The precision of each questionnaire was compared and the model was used to transform scores based on the assumed underlying latent trait. Both instruments were constructed to measure the same construct and their estimates of depression severity are highly correlated. Our analysis showed that the predicted scores provided by the conversion tables are similar to the observed scores in a validation sample. The PHQ-9 and ISR depression scales measure depression severity across a broad range with similar precision. While the PHQ-9 shows advantages in measuring low or high depression severity, the ISR is more parsimonious and also suitable for clinical purposes. Furthermore, the equation tables derived in this study enhance the comparability of studies using either one of the instruments, but due to substantial statistical spread the comparison of individual scores is imprecise.

  7. Dependence theories: approaches on the development of Latin America - doi: 10.4025/dialogos.v11i1e2.71 Teorías de la dependencia: enfoques sobre el desarrollo Latinoamericano Teorias da dependência: abordagens sobre o desenvolvimento Latino-Americano - doi: 10.4025/dialogos.v11i1e2.71

    Directory of Open Access Journals (Sweden)

    Paulo José Koling

    2010-05-01

    Full Text Available Elements on the theoretical approaches with regard to Latin American development and analyses of its international economic insertion are provided. Periphery, revision of dependence theories and aspects of the debate among “dependentists” are analyzed. The dual focus of civilization and barbarity was dominant during the 19th century and within the context of traditional Latin American intellectual thought on the insertion of the new countries within world economy. This was corroborated by the Ricardian theory of comparative advantages within the international work division, criticized by the Economical Commission for Latin America (CEPAL. In the context of dependence revision, critique on Rostowian and Cepal structuralism will be undertaken. Aspects of the discussion among intellectuals on dependence theories with regard to the relationship between dependence and development and nuances on its publicity in Brazil will be given and investigatedEn este artículo presentamos algunos elementos de los enfoques teóricos realizados sobre el desarrollo latinoamericano y sus análisis de las formas de inserción económica internacional, destacando la visión del pensamiento periférico, la revisión de las teorías de la dependencia y los aspectos del debate entre los dependentistas. Para el estudio de la inserción de los nuevos países de la región en la economía mundial del siglo XIX, en la “tradición” latinoamericana predominó el enfoque dualista de “civilización o barbarie” y la teoría ricardiana sobre las ventajas comparativas de la división internacional del trabajo que, por su parte, fue la base de la crítica producida por la Comisión Económica para América Latina (CEPAL. Inicialmente, de la revisión dependentista analizamos su crítica al estructuralismo rostowiano y al cepalino; luego, situamos los aspectos de la discusión realizada entre los intelectuales de las teorías de la dependencia, en lo que se refiere a la

  8. Middle Class and Democracy in Latin America

    Directory of Open Access Journals (Sweden)

    Jaime Fierro

    2015-06-01

    Full Text Available The consolidation of the middle class has been interpreted by modernization and postmodernization theories as a key factor for the functioning and stability of the democratic system. However, in Latin America the middle class has tended to be associated with two contradictory positions. On the one hand, it is emphasized that it plays a stabilizing and democratic role while, on the other hand, it is linked to supporting military coups. With the purpose of elucidate such a dilemma, the relationship that can be established between the socioeconomic status and the degree of support for democracy will be examined. In order to do this, an empirical analysis from Latinbarometer surveys databases will be conducted, covering seventeen countries in the region for the period from 1996 to 2011. It will be concluded that the middle class in Latin America does not have particularly more favorable attitudes toward democracy than other social segments.

  9. The Comparative Study on Teaching Methods of Universities in China and America%中美高校高级财务会计学课程教学方法比较

    Institute of Scientific and Technical Information of China (English)

    马自俊; 徐阳

    2012-01-01

    中美高校高级财务会计学课程在教学方法上存在差异,这种差异在深层次上反映了观念的差异。因此,教学方法的改革不仅仅是方法上的变化,更需要全社会对于高等教育从观念和形态上的转变。%The diversity in advanced financial accounting course in China and America reflects deep conceptual difference. Therefore, the reform of teaching method is not only the change of methods, but also the transformation of educational concept and form.

  10. Latin America Report.

    Science.gov (United States)

    1986-11-05

    8217Americas Watch’ Charges (THE DAILY GLEANER, 26 Sep 86) 92 - c - Briefs World Bank Loans 94 MEXICO 1985 Key Parastate Enterprise Losses Near...year later in the DIARIO DE CENTROAMERICA , on 27 December 1985. The previous pact, which had been in effect for 25 years, was the Central American... Mexico , including a sizable reduction in spreads (risk rates) collected from that country, will be the point of departure for the new round of

  11. Insights into Intrinsic Brain Networks based on Graph Theory and PET in right- compared to left-sided Temporal Lobe Epilepsy.

    Science.gov (United States)

    Vanicek, Thomas; Hahn, Andreas; Traub-Weidinger, Tatjana; Hilger, Eva; Spies, Marie; Wadsak, Wolfgang; Lanzenberger, Rupert; Pataraia, Ekaterina; Asenbaum-Nan, Susanne

    2016-06-28

    The human brain exhibits marked hemispheric differences, though it is not fully understood to what extent lateralization of the epileptic focus is relevant. Preoperative [(18)F]FDG-PET depicts lateralization of seizure focus in patients with temporal lobe epilepsy and reveals dysfunctional metabolic brain connectivity. The aim of the present study was to compare metabolic connectivity, inferred from inter-regional [(18)F]FDG PET uptake correlations, in right-sided (RTLE; n = 30) and left-sided TLE (LTLE; n = 32) with healthy controls (HC; n = 31) using graph theory based network analysis. Comparing LTLE and RTLE and patient groups separately to HC, we observed higher lobar connectivity weights in RTLE compared to LTLE for connections of the temporal and the parietal lobe of the contralateral hemisphere (CH). Moreover, especially in RTLE compared to LTLE higher local efficiency were found in the temporal cortices and other brain regions of the CH. The results of this investigation implicate altered metabolic networks in patients with TLE specific to the lateralization of seizure focus, and describe compensatory mechanisms especially in the CH of patients with RTLE. We propose that graph theoretical analysis of metabolic connectivity using [(18)F]FDG-PET offers an important additional modality to explore brain networks.

  12. 对比法在静电场理论教学中的应用%Applications of comparative approach in teaching and learning of electrostatic field theory

    Institute of Scientific and Technical Information of China (English)

    刘广东

    2015-01-01

    Generally,electrostatic field theory is in leading position within a course of electromagnetic field theory, therefore,its effect of teaching and learning is directly related to that of the course.A typical case with respect to boundary value problem for electrostatic field theory is designed.In order to overcome difficulties,such as abstract concepts,complex derivation process,a comparative approach of teaching and learning is chosen.Thus,its effect is enhanced.The comparisons include solving methods(analytical method versus numerical method),teaching and learning methods(lecture method versus demonstration method),and teaching and learning means(traditional means versus modern means).This case will attempt to provide a reference for teaching and learning of the course.%静电场理论一般处于电磁场理论的开篇位置,其教学效果直接关系到整科电磁场理论的教学成败.设计了一个静电场边值问题的典型案例.为克服概念抽象、过程复杂等困难,教学中应用求解方法(解析法与数值法)的对比,教学方法(讲授法与演示法)的对比和教学手段(传统手段与现代手段)的对比等方法,提高了教学效果,为电磁理论的教学提供参考.

  13. O neoliberalismo na America Latina

    OpenAIRE

    David Ibarra

    2011-01-01

    Neoliberalism in Latin America. Neoliberalism and globalization had decisive influence in shaping public policies both internal and foreign in Latin America. Less state, trade and market freedoms, social goals subordinated to economic criteria, are part and parcel of the neoliberal utopia. Price stability was erected as the main social objective; import substitution resulted replaced by exports as the main source of growth. The neoliberal net results as applied to Latin America are: less grow...

  14. An America unknown

    OpenAIRE

    2010-01-01

    If we consider that the Spanish chroniclers had gradually invented what eventually became America, as O'Gorman proposed, the Portuguese chroniclers of the first half of the 16th century were even more cautious in building an identity for the overseas territories visited by Columbus and Cabral. These sixteenth century chroniclers, focusing on Asia, only later ceased to think of this "almost other world" as a place of passage, to think of it as a place to stop. Disregarding the surprised tone o...

  15. Pensamento da America

    OpenAIRE

    2013-01-01

    Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de Filosofia e Ciências Humanas, Programa de Pós-Graduação em História, Florianópolis, 2013. Esta dissertação objetivou investigar a atividade editorial de Rui Ribeiro Couto e Renato Costa Almeida enquanto estes intelectuais estiveram à frente do Pensamento da America, uma publicação mensal vinculada ao A Manhã, jornal porta voz do Estado Novo. Este suplemento panamericano veio a público entre 1941 e 1949, no entanto a...

  16. Mosques in North America

    Directory of Open Access Journals (Sweden)

    Omar Khalidi

    2008-12-01

    Full Text Available The following article derived from an exhibit catalogue put together by Public Affairs Germany in the U.S. Embassy in Berlin and the U.S. Consulates in Frankfurt and Düsseldorf and accompanied Dr. Omar Khalidi’s photo exhibit “Mosques in America.” There are over 2,000 mosques in the United States, mostly housed in buildings originally built for other purposes. American mosques built in the last few decades, however, in the period in which Islam has begun to feel at home in the United States, are almost universally architect-designed.

  17. Eating in America

    Institute of Scientific and Technical Information of China (English)

    康海燕

    2007-01-01

    Americans are too busy to cook at home.They often eat outside.Eating culture is one of the important parts in America.There are many kinds of restaurants.Some are open for breakfast. Others are open twenty-four hours a day. A number of restaurants call themselves"family restaurants".They serve no alcohol~* and have fairly restricted~* menus.They serve steaks,hamburgers and sandwiches.Besides these,there are some special restaurants.They serve only or mainly steaks,seafood,etc.

  18. Let's Go to America!

    Institute of Scientific and Technical Information of China (English)

    2008-01-01

      The United States and China have signed an agreement to facilitate Chinese group leisure travel to the United States. This agreement provides the necessary framework to permit group leisure travel from China to the United States. U.S. companies can now enter into business relationships with Chinese travel agencies to organize and market travel packages for group leisure travel to the United States. It also attracts more and more Chinese to go to America, as more and more convenience and comforts are coming up during the travel.……

  19. Let's Go to America!

    Institute of Scientific and Technical Information of China (English)

    2008-01-01

    @@ The United States and China have signed an agreement to facilitate Chinese group leisure travel to the United States. This agreement provides the necessary framework to permit group leisure travel from China to the United States. U.S. companies can now enter into business relationships with Chinese travel agencies to organize and market travel packages for group leisure travel to the United States. It also attracts more and more Chinese to go to America, as more and more convenience and comforts are coming up during the travel.

  20. Primerjava dveh teoretičnih modelov in teorije zdravstvene nege preko konceptov metaparadigme: Comparing two nursing models and nursing theory through metaparadigm concepts:

    OpenAIRE

    Babuder, Dragan

    2015-01-01

    Introduction: Selection of a suitable theoretical model or theory of nursing is the basis for good practice. In Slovenia, Virginia Henderson's nursing model has been adopted as a base for professional nursing practice. The aim of this article is to present an organised and practical overview of the strengths and weaknesses of Henderson's nursing need theory in comparison to Hildegard E. Peplau's theory of interpersonal relations and Imogene M. King's goal attainment theory, as well as their i...

  1. On the Nature of the Semiotic Structure of the Didactic Action: The Joint Action Theory in Didactics within a Comparative Approach

    Science.gov (United States)

    Sensevy, Gérard; Gruson, Brigitte; Forest, Dominique

    2015-01-01

    In this paper, we first sketch the joint action theory paradigm from a general viewpoint in sciences of culture. Then we specify this generic description by focusing on the joint action theory in didactics (JATD). We elaborate on three currently developed elements of the theory: the reticence-expression dialectics; the contract-milieu dialectics,…

  2. Building America Best Practices Series: Volume 7.1: Guide to Determining Climate Regions by County

    Energy Technology Data Exchange (ETDEWEB)

    Baechler, Michael C.; Williamson, Jennifer L.; Gilbride, Theresa L.; Cole, Pamala C.; Hefty, Marye G.; Love, Pat M.

    2010-08-30

    This report for DOE's Building America program helps builders identify which Building America climate region they are building in. The guide includes maps comparing the Building America regions with climate designations used in the International Energy Conservation Code for Residential Buildings and lists all U.S. counties by climate zone. A very brief history of the development of the Building America climate map and descriptions of each climate zone are provided. This report is available on the Building America website www.buildingamerica.gov.

  3. Theory and practice in medical education – expectations and development of skills experienced by students of human medicine compared with students in other disciplines

    Directory of Open Access Journals (Sweden)

    Piedmont, Silke

    2015-02-01

    Full Text Available Aim: The aim of this article is to compare students of human medicine (HM with students specialising in the MINT disciplines (mathematics, computer science, natural sciences and engineering, the humanities and social sciences as well as law and economic sciences with regard to their expectations of their university study and career and the areas of competence where they feel they have been supported by their education. We present in detail issues particularly relevant to prospective physicians, which are discussed with the main focus on the “theoretical and practical orientation of medical education”.Methods: We used the database in the Public Use File of the “11 Student Survey”, a written survey of randomly selected students studying at 25 German tertiary institutions during the 2009/2010 winter term, which was supplied by the Tertiary Education Research working group at the University of Constance. Data on 7536 students was included, of which 488 (6.5% were prospective physicians.Results: Human medicine students have a clear career aim and want to complete their education quickly. They have a far above-average interest in working with and for people. About one student in two is interested in a career in science or research (53% in each case – close to the average for all subjects. Compared with the other disciplines, HM students are most likely to consider their university education to have practical and research relevance and are most likely to feel prepared for their profession. Yet over half of all students (Ø 53.3%; HM 54.5% do not consider their education to have fostered their research skills. MINT students in particular are better able to enhance their skills through independent experimentation, while theory and practice are more likely to be communicated academically in the regular teaching of human medicine. Accordingly, the HM students feel less well supported in some areas of competence required for their later work than

  4. Anaglyph, South America

    Science.gov (United States)

    2003-01-01

    This anaglyph (stereoscopic view) of South America was generated with data from the Shuttle Radar Topography Mission (SRTM). It is best viewed at or near full resolution with anaglyph glasses. For this broad view the resolution of the data was first reduced to 30 arcseconds (about 928 meters north-south but variable east-west), matching the best previously existing global digital topographic data set called GTOPO30. The data were then resampled to a Mercator projection with approximately square pixels (about one kilometer, or 0.6 miles, on each side). Even at this decreased resolution the variety of landforms comprising the South American continent is readily apparent.Topographic relief in South America is dominated by the Andes Mountains, which extend all along the Pacific Coast. These mountains are created primarily by the convergence of the Nazca and South American tectonic plates. The Nazca Plate, which underlies the eastern Pacific Ocean, slides under western South America resulting in crustal thickening, uplift, and volcanism. Another zone of plate convergence occurs along the northwestern coast of South America where the Caribbean Plate also slides under the South American Plate and forms the northeastern extension of the Andes Mountains.East of the Andes, much of northern South America drains into the Amazon River, the world's largest river in terms of both watershed area and flow volume. Topographic relief is very low in much of the Amazon Basin but SRTM data provide an excellent detailed look at the basin's three-dimensional drainage pattern, including the geologic structural trough (syncline) that hosts the eastern river channel.North of the Amazon, the Guiana Highlands commonly stand in sharp contrast to the surrounding lowlands, indeed hosting the world's tallest waterfall, Angel Falls (979 meters or 3212 feet). Folded and fractured bedrock structures are distinctive in the topographic pattern.South of the Amazon, the Brazilian Highlands show a mix of

  5. Locking in on Latin America

    Institute of Scientific and Technical Information of China (English)

    MICHAEL; RICE

    2006-01-01

    China cautious as it sets up generous investment in Latin America The United States is keeping a watchful eye as China bolsters political and economic ties with Latin America. The situation has U.S. political analysts trying to determine just how China s emerging influence

  6. GeoCorps America

    Science.gov (United States)

    Dawson, M.

    2011-12-01

    GeoCorps America, a program of the Geological Society of America's (GSA) Education and Outreach Department, provides short-term geoscience jobs in America's most amazing public lands. These jobs are hosted on federal lands managed by GeoCorps' three partner agencies: the National Park Service (NPS), the U.S. Forest Service (USFS), and the Bureau of Land Management (BLM). Agency staff submit to GSA position descriptions that help meet their geoscience needs. GSA advertises the positions online, recruits applicants from its 24,000+ members, and coordinates the placement of the candidates selected by agency staff. The typical GeoCorps position lasts for three months, pays a stipend of $2,750, and provides either free housing or a housing allowance. Some GeoCorps positions are classified as "Guest Scientist" positions, which generally last longer, involve larger payments, and require a higher level of expertise. Most GeoCorps positions occur during the spring/summer, but an increasing number of positions are being offered during the fall/winter. GeoCorps positions are open to geoscientists of all levels, from undergraduates through retired professionals. GeoCorps projects involve field and laboratory-based geoscience research, but some projects focus on developing educational programs and materials for staff, volunteers, and the public. The subject areas covered by GeoCorps projects include geology, hydrology, paleontology, mapping/GIS, soils, geo-hazards, cave/karst science, and more. GeoCorps positions have taken place at over 125 different locations nationwide, including Grand Canyon National Park, Sierra National Forest, and Craters of the Moon National Monument. In 2011, GeoCorps began offering GeoCorps Diversity Internships and GeoCorps American Indian Internships. The introduction of these programs doubled the level of diversity among GeoCorps participants. This increase in diversity is helping GSA and its partner agencies in meeting its mutual goal of

  7. South America Geologic Map (geo6ag)

    Data.gov (United States)

    U.S. Geological Survey, Department of the Interior — South America is part of Region 6 (Central and South America) for the World Energy Assessment. The geologic map of South America was digitized so that we could use...

  8. Small rural towns, global change and local knowledge. Comparative studies in Latin America Pequeñas localidades rurales, cambios globales y conocimiento local: Estudios comparados en América Latina

    Directory of Open Access Journals (Sweden)

    Graciela Nogar

    2010-01-01

    Full Text Available This article examines changes in rural areas of Latin America and the possible future scenarios through case studies developed under the project "Designing a methology to evaluate local knowlegde on global change and its role in the construction of future land scenarios used by local actors "IAI Institute for Global Change (director Jean Francois Tourrand, CIRAD. This project is a major methodological goal is to develop, test and validate a methodology to evaluate local knowledge on global change and how such knowledge is incorporated in the construction of future scenarios of land use. The complexity of the problem requires an interdisciplinary approach through the participation of researchers from different countries and institutions and the development of field work in various rural areas. With regard to the methodology developed, the lessons advance the accuracy of the information collection (drivers of change, scenarios and conditions and enriching the experience of fieldwork in Uruguay, Brazil and Peru.El presente artículo aborda los cambios en los espacios rurales de América Latina y los posibles escenarios futuros a través de estudios de caso desarrollados en el contexto del proyecto "Designing a methology to evaluate local knowlegde on global change and its role in the construction of future land use scenarios by local actors" IAI Institut for Global Change (director Jean Francois Tourrand, CIRAD. Este proyecto tiene un objetivo metodológico principal que consiste en elaborar, testear y validar una metodología para evaluar el conocimiento local sobre el cambio global y cómo se incorpora tal conocimiento en la construcción de escenarios futuros de uso de suelo. La complejidad del problema implica un abordaje interdisciplinario a través de la participación de investigadores de distintos países e instituciones y el desarrollo de trabajos de campo en distintos espacios rurales (1 En lo que respecta a la metodología elaborada, las

  9. Fermilab and Latin America

    Science.gov (United States)

    Lederman, Leon M.

    2006-09-01

    As Director of Fermilab, starting in 1979, I began a series of meetings with scientists in Latin America. The motivation was to stir collaboration in the field of high energy particle physics, the central focus of Fermilab. In the next 13 years, these Pan American Symposia stirred much discussion of the use of modern physics, created several groups to do collaborative research at Fermilab, and often centralized facilities and, today, still provides the possibility for much more productive North-South collaboration in research and education. In 1992, I handed these activities over to the AAAS, as President. This would, I hoped, broaden areas of collaboration. Such collaboration is unfortunately very sensitive to political events. In a rational world, it would be the rewards, cultural and economic, of collaboration that would modulate political relations. We are not there yet.

  10. 许茨与胡塞尔的生活世界理论比较%Comparing Schutz with Husserl on the Life- world Theory

    Institute of Scientific and Technical Information of China (English)

    黑龙江大学文化哲学研究中心,哈尔滨150080); 张彤

    2012-01-01

    Husserl's concept of lifeworld influenced Schutz deeply. Schutz applied this concept to the phenomenologieal sociology. The result of comparing Schutz with Husserl on the life - world theory can be generalized into the statement that it is from transcendental life -world to daily life -world, from transcendental inter - subjectivity to daily inter - subjectivity, and from transcendental primary philosophy to daily social science.%胡塞尔“生活世界”的概念深深地影响了许茨,许茨借用了这一概念,并把其运用到其现象学社会学理论之中。许茨与胡塞尔的生活世界理论的比较可以概括为:从先验的生活世界到日常生活世界,从先验的主体间性到日常生活中的主体间性,从先验的第一哲学到日常生活中的社会科学。

  11. Liquid drops on a surface: Using density functional theory to calculate the binding potential and drop profiles and comparing with results from mesoscopic modelling

    Science.gov (United States)

    Hughes, Adam P.; Thiele, Uwe; Archer, Andrew J.

    2015-02-01

    The contribution to the free energy for a film of liquid of thickness h on a solid surface due to the interactions between the solid-liquid and liquid-gas interfaces is given by the binding potential, g(h). The precise form of g(h) determines whether or not the liquid wets the surface. Note that differentiating g(h) gives the Derjaguin or disjoining pressure. We develop a microscopic density functional theory (DFT) based method for calculating g(h), allowing us to relate the form of g(h) to the nature of the molecular interactions in the system. We present results based on using a simple lattice gas model, to demonstrate the procedure. In order to describe the static and dynamic behaviour of non-uniform liquid films and drops on surfaces, a mesoscopic free energy based on g(h) is often used. We calculate such equilibrium film height profiles and also directly calculate using DFT the corresponding density profiles for liquid drops on surfaces. Comparing quantities such as the contact angle and also the shape of the drops, we find good agreement between the two methods. We also study in detail the effect on g(h) of truncating the range of the dispersion forces, both those between the fluid molecules and those between the fluid and wall. We find that truncating can have a significant effect on g(h) and the associated wetting behaviour of the fluid.

  12. EDITORIAL: Theory Meets Data Analysis at Comparable and Extreme Mass Ratios Conference (NRDA/Capra 2010), Perimeter Institute for Theoretical Physics, Waterloo, Canada, 20-26 June 2010 Theory Meets Data Analysis at Comparable and Extreme Mass Ratios Conference (NRDA/Capra 2010), Perimeter Institute for Theoretical Physics, Waterloo, Canada, 20-26 June 2010

    Science.gov (United States)

    Lehner, L.; Pfeiffer, H.; Poisson, E.

    2011-07-01

    This special issue of Classical and Quantum Gravity contains articles submitted in relation to the 'Theory Meets Data Analysis at Comparable and Extreme Mass Ratios' conference held at the Perimeter Institute for Theoretical Physics, Waterloo, Canada, 20-26 June 2010. This conference, organized by S Fairhurst, G Gonzalez, L Lehner, Y Liu, H Pfeiffer, and E Poisson brought together researchers from three gravitational wave communities: experiment, theory and data analysis, who discussed the latest advances and challenges for detecting and exploiting gravitational waves. Approximately 60 talks spread over one week, together with many lively discussions provided an excellent atmosphere for debate. With so much packed in over seven days there were too many highlights to list specifics here. However, several common themes could be clearly discerned: the tremendous progress achieved in the detector level; the understanding of key comparable-mass systems and the data analysis techniques required for searching for their signals; the significant progress achieved in obtaining predictions in extreme mass ratio scenarios and the understanding of remaining challenges; as well as several new efforts towards making multi-messenger astronomy a reality. This issue contains research articles presented at this conference which, together with online talks (all of which can be found at pirsa.org/C10015), illustrate the level of maturity the field has reached. Many challenges still remain and the communities involved are actively working towards addressing them.

  13. Wind Powering America Podcasts, Wind Powering America (WPA)

    Energy Technology Data Exchange (ETDEWEB)

    2012-04-01

    Wind Powering America and the National Association of Farm Broadcasters produce a series of radio interviews featuring experts discussing wind energy topics. The interviews are aimed at a rural stakeholder audience and are available as podcasts. On the Wind Powering America website, you can access past interviews on topics such as: Keys to Local Wind Energy Development Success, What to Know about Installing a Wind Energy System on Your Farm, and Wind Energy Development Can Revitalize Rural America. This postcard is a marketing piece that stakeholders can provide to interested parties; it will guide them to this online resource for podcast episodes.

  14. O neoliberalismo na America Latina

    Directory of Open Access Journals (Sweden)

    David Ibarra

    2011-06-01

    Full Text Available Neoliberalism in Latin America. Neoliberalism and globalization had decisive influence in shaping public policies both internal and foreign in Latin America. Less state, trade and market freedoms, social goals subordinated to economic criteria, are part and parcel of the neoliberal utopia. Price stability was erected as the main social objective; import substitution resulted replaced by exports as the main source of growth. The neoliberal net results as applied to Latin America are: less growth, deindustrialization, income concentration and precarious employments. Therefore, countries public policies should try to gain autonomy to use jointly markets and public intervention in a constructive and innovative fashion.

  15. North America and South America (NA-SA) neuropathy project.

    Science.gov (United States)

    Pasnoor, Mamatha; Nascimento, Osvaldo J M; Trivedi, Jaya; Wolfe, Gil I; Nations, Sharon; Herbelin, Laura; de Freitas, M G; Quintanilha, Giseli; Khan, Saud; Dimachkie, Mazen; Barohn, Richard

    2013-08-01

    Peripheral neuropathy is a common neurological disorder. There may be important differences and similarities in the diagnosis of peripheral neuropathy between North America (NA) and South America (SA). Neuromuscular databases were searched for neuropathy diagnosis at two North American sites, University of Kansas Medical Center and University of Texas Southwestern Medical Center, and one South American site, Federal Fluminense University in Brazil. All patients were included into one of the six major categories: immune-mediated, diabetic, hereditary, infectious/inflammatory, systemic/metabolic/toxic (not diabetic) and cryptogenic. A comparison of the number of patients in each category was made between North America and South America databases. Total number of cases in North America was 1090 and in South America was 1034 [immune-mediated: NA 215 (19.7%), SA 191 (18%); diabetic: NA 148 (13.5%), SA 236 (23%); hereditary: NA 292 (26.7%), SA 103 (10%); infectious/inflammatory: NA 53 (4.8%), SA 141 (14%); systemic/metabolic/toxic: NA 71 (6.5%), SA 124 (12%); cryptogenic: NA 311 (28.5%), SA 239 (23%)]. Some specific neuropathy comparisons were hereditary neuropathies [Charcot-Marie-Tooth (CMT) cases] in NA 246/292 (84.2%) and SA 60/103 (58%); familial amyloid neuropathy in SA 31/103 (30%) and none in NA. Among infectious neuropathies, cases of human T-lymphotropic virus type 1 (HTLV-1) neuropathy in SA were 36/141(25%), Chagas disease in SA were 13/141(9%) and none for either in NA; cases of neuropathy due to leprosy in NA were 26/53 (49%) and in SA were 39/141(28%). South American tertiary care centers are more likely to see patients with infectious, diabetic and hereditary disorders such as familial amyloid neuropathies. North American tertiary centers are more likely to see patients with CMT. Immune neuropathies and cryptogenic neuropathies were seen equally in North America and South America.

  16. Comparative density functional theory and density functional tight binding study of arginine and arginine-rich cell penetrating peptide TAT adsorption on anatase TiO2.

    Science.gov (United States)

    Li, Wenxuan; Kotsis, Konstantinos; Manzhos, Sergei

    2016-07-20

    We present a comparative density functional theory (DFT) and density functional tight binding (DFTB) study of geometries and electronic structures of arginine (Arg), arginine adsorbed on the anatase (101) surface of titania in several adsorption configurations, and of an arginine-rich cell penetrating peptide TAT and its adsorption on the surface of TiO2. Two DFTB parameterizations are considered, tiorg-0-1/mio-1-1 and matsci-0-3. While there is good agreement in the structures and relative energies of Arg and peptide conformers between DFT and DFTB, both adsorption geometries and energies are noticeably different for Arg adsorbed on TiO2. The tiorg-0-1/mio-1-1 parameterization performs better than matsci-0-3. We relate this difference to the difference in electronic structures resulting from the two methods (DFT and DFTB) and specifically to the band alignment between the molecule and the oxide. We show that the band alignment of TAT and TiO2 modeled with DFTB is qualitatively correct but that with DFT using the PBE functional is not. This is specific to the modeling of large molecules where the HOMO is close to the conduction band of the oxide. We therefore report a case where the approximate DFT-based method - DFTB (with which the correct band structure can be effectively obtained) - performs better than the DFT itself with a functional approximation feasible for the modeling of large bio-inorganic interfaces, i.e. GGA (as opposed to hybrid functionals which are impractical at such a scale). Our results highlight the utility of the DFTB method for the modeling of bioinorganic interfaces not only from the CPU cost perspective but also from the accuracy point of view.

  17. America's Electricity Future

    Science.gov (United States)

    Aubrecht, Gordon

    2006-03-01

    Where will America's future electricity supply come from? According to Vice President Cheney's energy task force, the U.S. needs to build about one 1 GW generating facilty a week in perpetuity.^(1) What sort of facilities will they be? Can the economy sustain such growth? Are there other possibilities? One possibility that strikes a chord with physicists is conservation as a source of energy. In this regard, Vice President Cheney famously said that conservation is``a sign of personal virtue, but it is not a sufficient basis---all by itself---for a sound, comprehensive energy policy,''^(2) echoing the Ayn Rand Instituite's view that ``Conservation is not a long- or short-term solution to the energy crisis. Conservation is the un-American idea of resigning oneself to doing with less.''^(3) This poster will explore the possible energy futures, their advantages and disadvantages, with and without conservation. 1. National Energy Policy Development Group (R. Cheney, C. L. Powell, P. O'Neill, G. Norton, A. M. Veneman, D. L. Evans, N. Y. Mineta, S. Abraham, J. M. Allbaugh, C. T. Whitman, J. B. Bolten, M. E. Daniels, L. B. Lindsey, and R. Barrales), National Energy Policy: Report of the National Energy Policy Development Group, (Washington, DC: Government Printing Office, 2001). 2. M. Allen, ``Bush energy plan will emphasize production,'' The Washington Post, 1 May 2001 3. R. Pool, ``Saving power deemed immoral,'' The Los Angeles Times, 12 May 2001.

  18. An America unknown

    Directory of Open Access Journals (Sweden)

    Susani Silveira Lemos França

    2010-01-01

    Full Text Available If we consider that the Spanish chroniclers had gradually invented what eventually became America, as O'Gorman proposed, the Portuguese chroniclers of the first half of the 16th century were even more cautious in building an identity for the overseas territories visited by Columbus and Cabral. These sixteenth century chroniclers, focusing on Asia, only later ceased to think of this "almost other world" as a place of passage, to think of it as a place to stop. Disregarding the surprised tone of the letters and reports used as sources, and showing concern in giving Cabral's travels a specific place in the construction of Portuguese history, the explorers' adventures highlight the peculiarities of the lands and peoples that would later come to deserve special attention from their congeners. It is the place that the Portuguese sixteenth century chronicler has given to these territories, and the place that was fixed in the memory of the 16th century Portuguese, which are the aspects covered in this text.

  19. ScaleUp America Communities

    Data.gov (United States)

    Small Business Administration — SBA’s new ScaleUp America Initiative is designed to help small firms with high potential “scale up” and grow their businesses so that they will provide more jobs and...

  20. Crohn's & Colitis Foundation of America

    Science.gov (United States)

    ... enabled to enjoy the full interactive experience. Crohn's & Colitis Foundation of America Find a Doctor Find a ... Local Chapters News Events Search: What are Crohn's & Colitis? What is Crohn's Disease What is Ulcerative Colitis ...

  1. African Ethnobotany in the Americas

    Directory of Open Access Journals (Sweden)

    Egleé L. Zent

    2013-10-01

    Full Text Available Review of African Ethnobotany in the Americas. Edited by Robert Voeks and John Rashford. 2013. Springer. Pp. 429, 105 illustrations, 69 color illustrations. $49.95 (paperback. ISBN 978‐1461408352.

  2. Conspiracy Theory

    DEFF Research Database (Denmark)

    Bjerg, Ole; Presskorn-Thygesen, Thomas

    2017-01-01

    The paper is a contribution to current debates about conspiracy theories within philosophy and cultural studies. Wittgenstein’s understanding of language is invoked to analyse the epistemological effects of designating particular questions and explanations as a ‘conspiracy theory......’. It is demonstrated how such a designation relegates these questions and explanations beyond the realm of meaningful discourse. In addition, Agamben’s concept of sovereignty is applied to explore the political effects of using the concept of conspiracy theory. The exceptional epistemological status assigned...... to alleged conspiracy theories within our prevalent paradigms of knowledge and truth is compared to the exceptional legal status assigned to individuals accused of terrorism under the War on Terror. The paper concludes by discussing the relation between conspiracy theory and ‘the paranoid style...

  3. Domestic Terrorism: Is America Prepared?

    Science.gov (United States)

    2001-04-01

    Luther King , Jr. were attempts to push America from a path it has chosen. Painfully, the United States has stood firm in the face of terrorism and not...terrorism in America. Cowardly acts of terrorism such as the assassination of President John F. Kennedy, President Abraham Lincoln, and Dr. (Rev) Martin ...there are over 500 racist and neo-Nazi groups and over 400 active militia groups espousing extreme antigovernment views as of 1999. These hate groups

  4. A Comparative Analysis on the Western Theories of Corporate Crime%西方公司犯罪理论对比分析

    Institute of Scientific and Technical Information of China (English)

    聂宇轩

    2012-01-01

    公司犯罪在我国研究甚少,但是国外已创建不少基本理论。比较有实证基础的理论包括紧张理论、模仿理论、合理性选择理论以及公司结构理论。这些理论对公司犯罪的解释角度不同,可谓各具所长。紧张理论突出公司业绩与犯罪之间的关系;模仿理论则更加关注公司文化和高管人员对犯罪行为的接受;另外,基于一定经济分析基础的合理性选择理论把公司决策时的成本效益分析看成了公司犯罪的最本源,而公司结构理论则恰恰相反地把犯罪源头锁定在了公司治理的结构问题上。就公司本身特征(包括公司业绩、规模、高管人员素质和组成)与公司行为关系而言,这些理论的适用性则强度不一。因此,为求对公司犯罪研究结果的整合,以及提高公司治理的发展,一种综合性解释理论的需求随之而生。%There has not been much research on corporate crime in China, while quite a few fundamental theories have been developed overseas. Theories with empirical supports include strain theory, learning theory, rational choice theory, and corporate structure theory. These theories approach corporate crime from different angles, so each has its own strengths. Strain theory emphasizes the relationship between corporate performance and crime, while learning theory concerns more about corporate culture and top management; on the other hand, rational choice theory, which is based on economic analysis, takes the cost-benefit analysis of corporate decision as the origin of corporate crime, meanwhile corporate structure theory is on quite the contrast, identifying the corporate governance as the source of corporate crime. As far as the relationship between corporate crime and corporate features, including corporate performance, size, top management backgrounds, the strength of these theories varies. Therefore, in order to improve corporate governance, a general explanatory theory

  5. On the "Hero" Image of America from the Perspective of Frame Theory%从框架理论视角解读美国“英雄”形象

    Institute of Scientific and Technical Information of China (English)

    郜丽娜; 姚志英

    2012-01-01

    Frame theory provides a new perspective for semantic research.Linguistic information and lexical meaning can evoke a frame and the construction of the frame is conducive to raising our understanding of linguistic expressions.Based on frame theory,this article focuses on linguistic expressions on the theme of values of freedom and democracy in American presidential inaugural speeches after World WarⅡ.It is found that American presidents frame American government as a hero and construct the moral framing of promoting values of freedom and democracy as a battle between "good and evil" by the use of some specific lexical items.%框架理论是一个语义研究的新视角,语言信息和词汇语义可以唤起框架;框架的构建有助于我们对语言表达的理解。本文从框架理论视角分析二战后美国总统就职演说中自由民主主题下的语言表达,发现美国总统使用一些特定语言词汇成功构建一个"英雄"框架来塑造美国的"英雄"形象,并把美国推广自由民主价值观的行为框定为"正义"与"邪恶"之战。

  6. Beyond America's War on Drugs: Developing Public Policy to Navigate the Prevailing Pharmacological Revolution.

    Science.gov (United States)

    Golub, Andrew; Bennett, Alex S; Elliott, Luther

    2015-03-30

    This paper places America's "war on drugs" in perspective in order to develop a new metaphor for control of drug misuse. A brief and focused history of America's experience with substance use and substance use policy over the past several hundred years provides background and a framework to compare the current Pharmacological Revolution with America's Nineteenth Century Industrial Revolution. The paper concludes with cautions about growing challenges and provides suggestions for navigating this revolution and reducing its negative impact on individuals and society.

  7. [Population and nutrition in Latin America].

    Science.gov (United States)

    Sepulveda, S

    1984-04-01

    This discussion of food and population in Latin America consists of 5 sections covering food and the population debate since Malthus, basic data on nutrition problems in Latin America, the demographic impact, food production, and future prospects. The present position in favor of limitation of population growth is based on the view that continued rapid population increase must inevitably bring a crisis of disequilibrium of food, natural resources, and ecological and economic security within about 100 years. The common element uniting those opposed to or indifferent to population control is a belief that science and technology can predict and satisfy the essential food needs of a burgeoning population. All developed countries have per capita caloric availabilities of over 3000/day, compared to an average of 2465 for Latin American as a whole. Only Barbados and Argentina have 3000 calories/day available. The daily average per capita protein consumption of 65.7 grams in Latin America is above the 54 gr/day recommended by the Food and Agriculture Organization (FAO) and the World Health Organiation. In Latin America the average daily per capita consumption from animal protein is 496 calories, compared to 1331 in the US. The nutrition status of different Latin American countries varies, with minimal caloric intakes of 1880-2170 calories/day in some Central American and Caribbean countries. Haiti, the Dominican Republic, Honduras, Ecuador, and Bolivia have frank protein deficits. Within countries, there may be large food gaps between regions, rural and urban populations, and social classes. The FAO estimated that 41 million Latin Americans representing 13% of the population are undernourished. 38% of Guatemalans, Hondurans, and Haitians, 30% of Ecuadoreans, and 23% of Peruvians are believed to be inadequately nourished. The quality of the diet varies widely between countries and regions because of a multitude of cultural, environmental, and socioeconomic factors. In

  8. A Comparative Research on Real-Bill Theory and Free-Banking Theory and Monetary Contract Theory%真实票据理论、自由银行理论和货币契约思想的比较研究

    Institute of Scientific and Technical Information of China (English)

    张兰

    2012-01-01

    本文首先对货币历史上出现过的真实票据理论和自由银行理论的涵义进行了阐述,并试图将二者与货币契约思想的内涵做比较,找出它们之间的异同点。最后对信用货币制度下的货币契约提出一些建议,以便使当代的国际和国内货币制度设计更符合契约思想。%This paper analyzes the connotation of real-bill theory and free-banking theory which existed in history and makes an attempt to compare them with monetary contract theory to find their differences and similarities.Finally,the paper gives some suggestions to monetary contract under the credit money system in order for the design of modern international and domestic monetary system corresponding to contract thought even more.

  9. A comParative study of construction of Public sPorts service system among China,America Germany and JaPan%中外公共体育服务体系构建比较研究

    Institute of Scientific and Technical Information of China (English)

    刘芳

    2015-01-01

    With the methods of literature review,expert interview and comparative analysis,by taking advantage of the resources of the International Society for Comparative Physical Education and Sport,we interviewed the experts of the United States,Germany,Japan and other countries via network and made a comparison from the aspects of public sports service policy,management,venues and source of funds,service guarantee of the four countries. Compared with the developed countries,the socialization,decentralization,marketization, equalization and human nature of Chinaˊs public sports services are still at a lower level. It is suggested that we change the government function,encourage the main service body to be socialized;perfect the market access system and standardize the financing channel;increase the investment in the facilities and further take advantage of the existing facilities;perfect the security system.%采用文献资料、专家访谈、比较分析等研究方法,利用国际比较体育学会的资源,对美、德、日等国家的体育专家进行了网络访谈。从公共体育服务的政策、组织管理、场地设施、经费来源、服务保障方面5个方面对中、美、德、日4个国家进行了比较。我国的公共体育服务与发达国家相比,其社会化、分权化、市场化、均等化和人性化等方面都处于较低水平。要切实转变政府职能,鼓励服务主体的社会化;健全市场准入机制、规范融资渠道;加大体育设施投入并进一步开发利用现有场地设施;完善保障体系。

  10. Comparative Study on University Library Websites Link Structure in China and America%中美高校图书馆网站链接结构比较研究

    Institute of Scientific and Technical Information of China (English)

    杨石山; 孙建军

    2011-01-01

    Besides indexes which were widely used by former link analysis research,this paper proposed three new indexes- portal index,return rate of homepage and link optimization index to evaluate homepage ' s link structure.Using those indexes a comparative resea%在链接分析常用指标的基础上增加了首页信息门户指数、首页返回率和首页链接优化指数三个首页链接结构的测度指标,对中、美排名前20名高校的图书馆网站进行对比研究。文章的最后运用灰色关联分析方法分别对两国高校图书馆网站的链接结构进行排名。

  11. Notas acerca de psicólogos y teorías psicológicas de Europa Oriental en la historia de la psicología de América del Sur (Notes About East European Psychologists and Psychological Theories in tahe History of Psychology in South America

    Directory of Open Access Journals (Sweden)

    Ramón León

    2014-06-01

    Full Text Available RESUMEN: Psicólogos de Europa Oriental tuvieron un rol importante en los años iniciales de desarrollo de la psicología en América del Sur. En el presente artículo se describe el trabajo y la influencia de cuatro de ellos: Waclaw Radecki (1887-1953, Béla Székely (1899-1955, F. Oliver Brachfeld (1908-1967 y Hélène Antipoff (1892-1974. Además, teorías provenientes de Rusia y la Unión Soviética encontraron una amplia resonancia entre los psicólogos sudamericanos, como la teoría de Pavlov y las ideas de Vygotsky que atrajeron el interés de los especialistas en la región, quienes las consideraron alternativas válidas frente a la psicología proveniente de los Estados Unidos, sobre todo en la década de1960, cuando predominaba una fuerte atmósfera antiestadounidense en esa parte del mundo. ABSTRACT: Psychologists from Eastern Europe had an important role in the initial years of the development of psychology in South America. In the present communication is the work and influence of four of them: WaclawRadecki (1887-1953, BélaSzékely (1899-1955, F. Oliver Brachfeld (1908-1967 and Hélène Antipoff (1892-1974. Furthermore, theory from Russia and the Soviet Union found a wide resonance among South American Psychologists as Pavlov's theory and the ideas of Vygotsky caught the interest of specialists in the region, who considered them valid alternatives to the psychology coming from the United States, at a time as in the 1960 when a strong anti-american atmosphere prevailed in that part of the world.

  12. Social Pedagogy in North America: historical background and current developments

    Directory of Open Access Journals (Sweden)

    Daniel Schugurensky

    2015-12-01

    Full Text Available In North America, the use of the term ‘social pedagogy’ is a relatively new phenomenon, but social pedagogical practices have been used for a long time. The recent interest in the field of social pedagogy can be explained in part by the publication of an unprecedented volume of books and articles in English language, the creation of a new international journal, the simultaneous development of graduate programs in social pedagogy in the UK and the USA, and the establishment of a social pedagogy association that brings together academics and practitioners. In North America, social pedagogy thinking is influenced by the history of the field, by current social pedagogy theory and practice in other parts of the world, and by several traditions that connect education with social change. The paper discusses ten of them: indigenous education, progressive education, social movement learning, community development, public pedagogy, popular education, participatory action research, social economy, participatory democracy, and critical theory

  13. Latin America`s emerging non-proliferation consensus

    Energy Technology Data Exchange (ETDEWEB)

    Redick, J.R.

    1994-03-01

    Latin America`s incorporation into the international nuclear non-proliferation regime is well advanced. The 1967 Tlatelolco Treaty, which established a regional nuclear-weapon-free zone (NWFZ), is nearing completion. A signal event occurred January 18, when Argentina and Chile deposited instruments of ratification to the treaty, leaving Brazil and Cuba the only major countries in Latin America that are not yet contracting parties. And after more than two decades of concern about the nuclear programs and policies in Argentina and Brazil, there is room for great optimism that Brazil may now be moving quickly on important non-proliferation issues. Even Cuba, the {open_quotes}bad boy of the neighborhood{close_quotes} in the eyes of many, which held aloof from the Tlatelolco process for three decades, has stated its willingness to join the zone in the future.

  14. 2014 Building America House Simulation Protocols

    Energy Technology Data Exchange (ETDEWEB)

    Wilson, E. [National Renewable Energy Laboratory (NREL), Golden, CO (United States); Engebrecht, C. Metzger [National Renewable Energy Laboratory (NREL), Golden, CO (United States); Horowitz, S. [National Renewable Energy Laboratory (NREL), Golden, CO (United States); Hendron, R. [National Renewable Energy Laboratory (NREL), Golden, CO (United States)

    2014-03-01

    As Building America has grown to include a large and diverse cross-section of the home building and retrofit industries, it has become more important to develop accurate, consistent analysis techniques to measure progress towards the program's goals. The House Simulation Protocol (HSP) document provides guidance to program partners and managers so they can compare energy savings for new construction and retrofit projects. The HSP provides the program with analysis methods that are proven to be effective and reliable in investigating the energy use of advanced energy systems and of entire houses.

  15. Cultural Differences in Implicit Theories of Citizenship Performance: A Comparative Study of MBA Students from the Czech Republic, India and the United States

    Science.gov (United States)

    Lanik, Martin

    2010-01-01

    The purpose of the present research was to (a) develop a culturally-universal measure of implicit citizenship performance theories and (b) examine cross-cultural differences in the construct. The final measure consisted of four factors--Discourtesy, Interpersonal Harmony, Conscientiousness, and Initiative. Cross-country comparisons using the new…

  16. Applying the Uses and Gratifications Theory to Compare Higher Education Students' Motivation for Using Social Networking Sites: Experiences from Iran, Malaysia, United Kingdom, and South Africa

    Science.gov (United States)

    Karimi, Leila; Khodabandelou, Rouhollah; Ehsani, Maryam; Ahmad, Muhammad

    2014-01-01

    Drawing from the Uses and Gratifications Theory, this study examined the Gratification Sought and the Gratification Obtained from using Social Networking Sites among Iranian, Malaysian, British, and South African higher education students. This comparison allowed to drawing conclusions about how social networking sites fulfill users' needs with…

  17. Pedagogical Media Competencies of Preservice Teachers in Germany and the United States: A Comparative Analysis of Theory and Practice

    Science.gov (United States)

    Tiede, Jennifer; Grafe, Silke; Hobbs, Renee

    2015-01-01

    Teachers need knowledge and skills to make effective use of the growing variety of media and technology texts and tools available for use in elementary and secondary education. For this reason, pedagogical media competencies are highly relevant for teachers' professional development. The theory of media pedagogical competencies is first defined…

  18. Cross-Cultural Studies of Implicit Theories of Creativity: A Comparative Analysis between the United States and the Main Ethnic Groups in Singapore

    Science.gov (United States)

    Ramos, Suzanna J.; Puccio, Gerard J.

    2014-01-01

    This article explores the extent of influence of culture on implicit theories of creativity among laypeople from the United States and Singapore, as well as the ethnic groups in Singapore. Adaptive and innovative styles of creativity were examined, as well as their own conceptions of creativity. Laypersons from the United States and Singapore were…

  19. Comparative Study on the Nominal Value of Wind Loads on Tall Buildings Among the Codes of China, America and Japan%中美日三国规范高层结构风荷载标准值对比

    Institute of Scientific and Technical Information of China (English)

    张军锋; 葛耀君; 柯世堂; 赵林

    2011-01-01

    Most international codes and standards provide guidelines and procedures for assessing the along-wind nominal value of equivalent static wind loads on tall buildings. Despite their analogous multiple-parameters expression, notable scatter exists among the parameters and so among the nominal values of wind loads and wind effects predicted by the various codes and standards. Based on the comparative study of parameters, the GB50009 (China), ASCE7 (American), and AIJ (Japan) were selected as the representative codes in the Asia-Pacific region, and the calculation principles and methods of the nominal value of equivalent wind loads in the along-wind direction were reviewed. Pa-rameters such as the basic wind velocity, wind profile, turbulence intensity, gust effect factor and also the inter-influ-ence among them were considered. The gust effect factor and the influence on it were also expounded. A detail exam-ple including three representative buildings was presented to illustrate the overall comparison and the main findings were also highlighted in the example and the relevant discussion. The results show that the along-wind nominal value of equivalent static wind loads is the largest in AU and more or less the same in GB50009 and ASCE7.%世界各国规范对高层结构的顺风向风荷载标准值都取多参数表达的计算式,各参数取值的差异最终反映到荷载标准值的大小.以参数分析为基础,对亚太地区具有代表性的中美日三国荷载规范关于普通高层结构顺风向风荷载标准值的取值原则和计算思路进行了对比.研究了基本风速、风剖面、紊流度、脉动效应系数等各参数的取值以及各参数间的相互影响,分析了脉动效应系数的取值和影响因素.以三个不同高度的典型结构为例,分别采用三国规范计算风荷载标准值及特征响应,并对不同国家规范荷载标准值和响应的差异进行了讨论.结果表明,对于结构顺风

  20. Amerigo and America?

    OpenAIRE

    Felipe Fernández-Armesto

    2007-01-01

    Felipe Fernández-Armesto (1950-), distinguished British scholar of global environmental history, comparative colonial history, topics in Spanish and maritime history and the history of cartography; Principe de Asturias Chair at Tufts University.

  1. A Comparative Study on Behavior Theory---On the Rationality of Personality Behavior Theory%行为理论之比较研究--兼论人格行为论的合理性

    Institute of Scientific and Technical Information of China (English)

    邵睿

    2014-01-01

    对于行为与构成要件的关系,存在着“构成要件论”与“行为论”的争议,前者主张在构成要件阶段评价行为,而后者要为行为本身单独构建一个阶层,由于行为概念本身具有消极和积极两方面的机能,为实现这些机能,应当采取“行为论”的观点。对于行为概念,仅在大陆法系中就存在因果行为论、社会行为论、目的行为论和人格行为论等学说上的聚讼,其中,人格行为论由于结合了存在论和规范论两方面的考虑,因而在实现行为概念的各项机能方面显得较为妥当。同时,我国传统的犯罪构成理论由于缺乏专门的行为概念研究,而造成了体系上主客观的失衡和评价对象的缺失,因此,应该借鉴人格行为论的观点在犯罪构成之前确认行为的存在。%For the relationship between behavior and constitutive requirements, there exists controversy between“constitutive requirement theory” and“behavior theory”.The former advocates evaluation of be-havior on the stage of constitution of requirements, while the latter advocates constructing a class for be-havior alone.Because the concept of behavior itself has both negative and positive functions, “behavior theory” should be adopted to realize these functions.For behavior concept, just in the continental law system, there exists disputes among causal behavior theory, social behavior theory, purpose behavior the-ory and personality behavior theory.Among them, on the consideration of the combination of ontology and theory of norm, the personality behavior theory is relatively appropriate in the realization of each function of behavior concept.At the same time, the lack of special research on behavior concept in the traditional Chinese theory of crime constitution results in the subjective and objective imbalances and the absence of evaluation objects.Therefore, we should learn from the theory of personality

  2. China-Latin America Relations

    DEFF Research Database (Denmark)

    Christensen, Steen Fryba; Silva Ramos Becard, Danielly

    2016-01-01

    The article discusses the research field of China-Latin American relations and suggests a broad and encompassing approach to the topic. It discusses the main themes and problem areas that analysts mostly emphasize in analyses of China-Latin America relations.......The article discusses the research field of China-Latin American relations and suggests a broad and encompassing approach to the topic. It discusses the main themes and problem areas that analysts mostly emphasize in analyses of China-Latin America relations....

  3. Fuglene. Audubon: Birds of America

    DEFF Research Database (Denmark)

    Schlichtkrull, Torsten

    2010-01-01

    The Royal Library owns one of the most exceptional works in book history, an original edition of John James Audubon Birds of America. This edition, in a format called “double elephant folio” was published from 1827 to 1838. On basis of existing literature, this article briefly describes the work...... the Royal Library and the University Library, joined the library cooperation of the 1800’s on an equal standing with the other two libraries. The Classen’s Library and the library’s founder, industrialist JF Classen are described briefly in this article. Due to two library mergers the Birds of America...

  4. La investigación sobre violencia contra las mujeres en América Latina: entre el empirismo ciego y la teoría sin datos Research on violence against women in Latin America: from blind empiricism to theory without data

    Directory of Open Access Journals (Sweden)

    Roberto Castro

    2003-02-01

    Full Text Available La investigación en torno a la violencia contra las mujeres en América Latina enfrenta una paradoja: el número de investigaciones es sumamente bajo, al mismo tiempo que existe una suerte de agotamiento del tema sin haberse dado aún respuestas definitivas sobre la naturaleza y las causas del problema. Ello responde a la orientación predominantemente empírica de las investigaciones, y a su falta de anclaje en la teoría sociológica más general. La investigación que se apoya en la teoría social suele ignorar las mediaciones existentes entre los arreglos estructurales y la conducta específica de los individuos, así como el carácter interaccional de la violencia. La investigación empírica, por su parte, presenta resultados inconsistentes y suele incurrir en problemas metodológicos tales como confusión operacional, y obviedad de los hallazgos y de las recomendaciones. Para enriquecer la investigación es indispensable diseñar nuevas investigaciones sustentadas en el corpus conceptual de las ciencias sociales y abandonar los diseños ateóricos y meramente estadísticos. Sólo así será posible imaginar las nuevas preguntas de investigación que requiere el problema de la violencia.Research on violence against women in Latin America presents an interesting paradox: while the number of studies is quite small, there also appears to be a sense that research on this topic has been exhausted, despite the lack of any definitive responses to the nature and causes of the problem. This results from the boom in studies with a strong empirical focus, lacking any basis in more general sociological theory. On the other hand, research using social theory tends to ignore the existing mediations between structural arrangements and any individual specific behavior, as well as the interactive nature of domestic violence. Meanwhile, empirical research presents inconsistent results and tends to run into methodological problems such as operational

  5. Why Schools in America Should Not Be Like Schools in Singapore

    Science.gov (United States)

    Hong, Barbara S. S.

    2014-01-01

    America is not Singapore and Singapore cannot be America. So why are we often comparing ourselves to high-performing countries based on international exams? Despite the educational crisis many U.S. schools are facing, Americans should be cautious not to mimic another country's model within our diverse classrooms. We are largely grounded on the…

  6. Internationalisation in Higher Education in Latin America: Policies and Practice in Colombia and Mexico

    Science.gov (United States)

    Berry, Caroline; Taylor, John

    2014-01-01

    There is now an extensive literature about internationalisation in higher education. However, much of the research relates to North America and Europe. This paper is concerned with internationalisation in Latin America and seeks to consider perceptions and experiences in Colombia and Mexico, and to compare practice in the public and private…

  7. Why Schools in America Should Not Be Like Schools in Singapore

    Science.gov (United States)

    Hong, Barbara S. S.

    2014-01-01

    America is not Singapore and Singapore cannot be America. So why are we often comparing ourselves to high-performing countries based on international exams? Despite the educational crisis many U.S. schools are facing, Americans should be cautious not to mimic another country's model within our diverse classrooms. We are largely grounded on…

  8. Algunos Animales de Latino America = Some Animals of Latin America.

    Science.gov (United States)

    Thompson, Kathryn F. B.

    Developed by the Latin American Culture Studies Project for educators of elementary level children, these materials are designed to teach students the Spanish and English names of animals found in Latin America. The lesson includes coloring sheets, duplicating masters, fact sheets, the card game Maymayguashi, and directions for preparation. (DB)

  9. Two hundred years of the theory of historiography in Lithuania, or how Joachim Lelewel did become the pioneer of modern comparative history

    OpenAIRE

    Norkus, Zenonas

    2015-01-01

    In 1815 distinguished Polish historian Joachim Lelewel (1786–1861) published in Vilnius his Historyka, marking the origin of the theory of historiography in Lithuania and Poland. This paper, originally presented at the international conference at Vilnius university in November 2015 to celebrate 200-year anniversary of this event, explores the evolution and original features of Lelewel’s views on writing history. Main focus is on the relation between his methodological and substantive work: di...

  10. Solvent dependence of Stokes shift for organic solute-solvent systems: A comparative study by spectroscopy and reference interaction-site model-self-consistent-field theory.

    Science.gov (United States)

    Nishiyama, Katsura; Watanabe, Yasuhiro; Yoshida, Norio; Hirata, Fumio

    2013-09-01

    The Stokes shift magnitudes for coumarin 153 (C153) in 13 organic solvents with various polarities have been determined by means of steady-state spectroscopy and reference interaction-site model-self-consistent-field (RISM-SCF) theory. RISM-SCF calculations have reproduced experimental results fairly well, including individual solvent characteristics. It is empirically known that in some solvents, larger Stokes shift magnitudes are detected than anticipated on the basis of the solvent relative permittivity, ɛr. In practice, 1,4-dioxane (ɛr = 2.21) provides almost identical Stokes shift magnitudes to that of tetrahydrofuran (THF, ɛr = 7.58), for C153 and other typical organic solutes. In this work, RISM-SCF theory has been used to estimate the energetics of C153-solvent systems involved in the absorption and fluorescence processes. The Stokes shift magnitudes estimated by RISM-SCF theory are ∼5 kJ mol(-1) (400 cm(-1)) less than those determined by spectroscopy; however, the results obtained are still adequate for dipole moment comparisons, in a qualitative sense. We have also calculated the solute-solvent site-site radial distributions by this theory. It is shown that solvation structures with respect to the C-O-C framework, which is common to dioxane and THF, in the near vicinity (∼0.4 nm) of specific solute sites can largely account for their similar Stokes shift magnitudes. In previous works, such solute-solvent short-range interactions have been explained in terms of the higher-order multipole moments of the solvents. Our present study shows that along with the short-range interactions that contribute most significantly to the energetics, long-range electrostatic interactions are also important. Such long-range interactions are effective up to 2 nm from the solute site, as in the case of a typical polar solvent, acetonitrile.

  11. Comparative Study on the Marketing Theories of 4P and 4C%4P 与4C 营销理论的比较研究

    Institute of Scientific and Technical Information of China (English)

    尹坤; 李欣

    2015-01-01

    The marketing theories of 4P and 4C can’t be replaced by each other from the perspectives of the theories and the application related with the origination and development of marketing mix.They are origi-nated in different marketing environment and are not contradicted in essence.Hence,it is claimed that the theories of 4P and 4C should be mixed in application according to the industry peculiarities,market compe-tition condition and the different stages of the products.%从营销组合的产生与发展以及理论和应用层面分析认为,4P 和4C 营销理论之间不存在谁取代谁的关系,它们产生于不同的营销环境,没有本质的矛盾。在此基础上提出应该根据具体的行业特征、市场竞争状况和产品所处的不同的生命周期阶段来对4P 和4C 进行组合运用。

  12. Comparing the utility of the theory of planned behavior between boys and girls for predicting snack food consumption: implications for practice.

    Science.gov (United States)

    Branscum, Paul; Sharma, Manoj

    2014-01-01

    The purpose of this study was to use the theory of planned behavior to explain two types of snack food consumption among boys and girls (girls n = 98; boys n = 69), which may have implications for future theory-based health promotion interventions. Between genders, there was a significant difference for calorie-dense/nutrient-poor snacks (p = .002), but no difference for fruit and vegetable snacks. Using stepwise multiple regression, attitudes, perceived behavioral control, and subjective norms accounted for a large amount of the variance of intentions (girls = 43.3%; boys = 55.9%); however, for girls, subjective norms accounted for the most variance, whereas for boys, attitudes accounted for the most variance. Calories from calorie-dense/nutrient-poor snacks and fruit and vegetable snacks were also predicted by intentions. For boys, intentions predicted 6.4% of the variance for fruit and vegetable snacks (p = .03) but was not significant for calorie-dense/nutrient-poor snacks, whereas for girls, intentions predicted 6.0% of the variance for fruit and vegetable snacks (p = .007), and 7.2% of the variance for calorie-dense/nutrient-poor snacks (p = .004). Results suggest that the theory of planned behavior is a useful framework for predicting snack foods among children; however, there are important differences between genders that should be considered in future health promotion interventions.

  13. The comparative study of theories and tools application in performance evaluation of hospital human resources%医院人力资源绩效评价理论与工具应用比较研究

    Institute of Scientific and Technical Information of China (English)

    刘丹; 乐虹

    2012-01-01

    Human resource management is based on the modern theories of human resource management. In recent years, some domestic scholars began to apply some advanced management theories into hospital human resources management, such as incentive theory, psychological contract theory, the theory of organizational commitment and iceberg theory. Human resource management theory has great sense for the performance evaluation, so that the choice of performance appraisal methods is the important content of human resource management. In order to provide reference for the hospital managers, the authors developed a comparative analysis among the key performance indication assessment method, 360 degree evaluation method, Balanced Scorecard to find the suitable performance management tool for hospitals.%医院人力资源管理是建立在现代人力资源管理理论的基础之上的.近年来国内一些学者尝试把一些先进的人力资源管理理论运用到医院人力资源绩效管理中,包括"激励理论"、"心理契约理论"、"组织承诺理论"、"冰山理论"等.人力资源管理理论对绩效考核有重大的指导意义,绩效考核方法的选择是人力资源管理的重要内容.本文通对360度考核法、平衡计分法等的适用性进行比较分析,选择适合的绩效管理工具,以期为医院管理者提供借鉴.

  14. A Comparative Study on Family Education between China and America

    Institute of Scientific and Technical Information of China (English)

    王大利

    2011-01-01

    Family education is one of the earliest and most important form of education, which is related to a person' s whole life. It plays a vital role in shaping a child' s world view, character, and thinking mode. With the social development, high qualified tal

  15. 二十世纪八十年代以来美日英三国基础教育课程改革的发展与比较%A Comparative Study on Curriculum Reform in Elementary Education of America, Japan and Britain since 1980s

    Institute of Scientific and Technical Information of China (English)

    凌品芳; 江平

    2011-01-01

    Since 1980s, the development of politics, economy and culture invokes educational reform. Therefore, a new round elementary curriculum reform started in America, Japan and Britain. This paper attempts to have a comparative study on the development of elementary curriculum reform in these three countries and provides an enlightenment on the elementary curriculum reform in China.%20世纪80年代以后,世界政治、经济、科学文化的发展对各国的教育改革提出了新的要求。在这样的大背景下,美日英三国都进行了新一轮的基础教育课程改革。从基础教育课程改革的目标和课程改革的主要方面两个维度考查关、日、英三国的基础教育课程改革动向,可以窥探美日英三国当前基础教育改革的特点和异同,为我国的基础教育课程改革提供一定的参考。

  16. Language Documentation in the Americas

    Science.gov (United States)

    Franchetto, Bruna; Rice, Keren

    2014-01-01

    In the last decades, the documentation of endangered languages has advanced greatly in the Americas. In this paper we survey the role that international funding programs have played in advancing documentation in this part of the world, with a particular focus on the growth of documentation in Brazil, and we examine some of the major opportunities…

  17. Individualist America and Today's Immigrants.

    Science.gov (United States)

    Skerry, Peter

    1991-01-01

    Reviews James Fallows's "More Like Us: Making America Great Again," a book conceived while he resided in Japan. Fallows stresses the virtues of individualism and competition. He advocates workfare, education vouchers, and generous immigration levels. He pays little attention, however, to the institutions that nurture and temper individualism. (DM)

  18. America's Consumerocracy: No Safe Haven

    Science.gov (United States)

    Daily, Nancy Lee; Swain, Letitia Price; Huysman, Mary; Tarrant, Cynthia

    2010-01-01

    Recently the authors completed a course designed to expand and deepen their knowledge about America's consumerocracy and the methods that give it the immense power it has. As a result of their reading and shared thinking in this course, Teaching Adolescents in a Consumer Society, they feel strongly motivated and better prepared to craft…

  19. Student Discipline in Colonial America.

    Science.gov (United States)

    Petry, John R.

    The basis for the severe discipline imposed on school children in colonial America, especially in the Puritan colonies, was the belief in original sin. The child was regarded as being born in sin and thus depraved and prone to sin. The purpose of education was to enable children to read the Bible and thus change the behavior which otherwise would…

  20. Brain Injury Association of America

    Science.gov (United States)

    ... Only) 1-800-444-6443 Welcome to the Brain Injury Association of America (BIAA) Brain injury is not an event or an outcome. ... misunderstood, under-funded neurological disease. People who sustain brain injuries must have timely access to expert trauma ...

  1. Language Politics in Latin America

    Science.gov (United States)

    Rajagopalan, Kanavillil

    2005-01-01

    This paper is an attempt to take stock of the politics of language as it has been playing out in Latin America, ever since the countries in this region were colonized by European powers, mainly Spain and Portugal. Linguistic imperialism is by no means a new phenomenon in this part of the world. In more recent times, the relentless advance of…

  2. Poverty in Latin America: A Critical Analysis of Three Studies.

    Science.gov (United States)

    Boltvinik, Julio

    1996-01-01

    Critically evaluates the methodologies used in three recent studies on poverty in Latin America. Maintains that some studies measure the relative nature of nutritional poverty while others record the absolute nature of nutritional poverty (physical survival). Includes a comparative analysis of the studies' results. (MJP)

  3. Social Movements in Southeast Asia and Latin America

    Directory of Open Access Journals (Sweden)

    Iqra Anugrah

    2014-01-01

    Full Text Available Three recent works – Social Activism in Southeast Asia, Social Movements in Latin America: Neoliberalism and Popular Resistance, and Southeast Asia and the Civil Society Gaze: Scoping a Contested Concept in Cambodia and Vietnam – provide a timely update on the contemporary landscape of social movements in Southeast Asia and Latin America. These works are also relevant for broader theoretical discussions on social movements and provide a basis for future inter-regional comparative studies.

  4. NOrth AMerica Soil (NOAM-SOIL) Database

    Science.gov (United States)

    Miller, D. A.; Waltman, S. W.; Geng, X.; James, D.; Hernandez, L.

    2009-05-01

    NOAM-SOIL is being created by combining the CONUS-SOIL database with pedon data and soil geographic data coverages from Canada and Mexico. Completion of the in-progress NOrth AMerica Soil (NOAM-SOIL) database will provide complete North America coverage comparable to CONUS. Canadian pedons, which number more than 500, have been painstakingly transcribed to a common format, from hardcopy, and key- entered. These data, along with map unit polygons from the 1:1,000,000 Soil Landscapes of Canada, will be used to create the required spatial data coverages. The Mexico data utilizes the INEGI 1:1,000,000 scale soil map that was digitized by U. S. Geological Survey EROS Data Center in the mid 1990's plus about 20,000 pedons. The pedon data were published on the reverse side of the paper 1:250,000 scale Soil Map of Mexico and key entered by USDA and georeferenced by Penn State to develop an attribute database that can be linked to the 1:1,000,000 scale Soil Map of Mexico based on taxonomic information and geographic proximity. The essential properties that will be included in the NOAM-SOIL data base are: layer thickness (depth to bedrock or reported soil depth); available water capacity; sand, silt, clay; rock fragment volume; and bulk density. For quality assurance purposes, Canadian and Mexican soil scientists will provide peer review of the work. The NOAM-SOIL project will provide a standard reference dataset of soil properties for use at 1km resolution by NACP modelers for all of North America. All data resources, including metadata and selected raw data, will be provided through the Penn State web site: Soil Information for Environmental Modeling and Ecosystem Management (www.soilinfo.psu.edu). Progress on database completion is reported.

  5. Comparing the content of leadership theories and managers' shared perceptions of effective leadership: a Q-method study of trainee managers in the English NHS.

    Science.gov (United States)

    Freeman, Tim

    2013-08-01

    Health service managers face potential conflicts between corporate and professional agendas, a tension sharpened for trainees by their junior status and relative inexperience. While academic leadership theory forms an integral part of contemporary management development programmes, relatively little is known of trainees' patterned subjectivities in relation to leadership theories. The objective of this study was to explore such subjectivities within a cohort of trainees on the National Health Service Graduate Management Training Scheme (NHS GMTS), a 'fast-track' programme which prepares graduate entrants for director-level health service management posts. A Q-method design was used and four shared subjectivities were identified: leadership as collaborative social process ('relational'); leadership as integrity ('moral'); leadership as effective support of subordinates ('team'); and leadership as construction of a credible leadership persona ('identity'). While the factors broadly map onto competencies indicated within the NHS Leadership Qualities Framework which underpin assessments of performance for this student group, it is important not to overstate the governance effect of the assessment regime. Rather, factors reflect tensions between required competencies, namely the mobilisation of diverse interest groups, the ethical base of decisions and the identity work required to convince others of leadership status. Indeed, factor 2 ('moral') effectively defines leadership as the embodiment of public service ethos.

  6. Literate America on Illiterate America: An Essay Review of "Illiterate America."

    Science.gov (United States)

    Gee, James Paul

    1986-01-01

    Reviews Jonathan Kozol's book, "Illiterate America." Asserts that Kozol's argument is insensitive to cultural variation and stems from an unquestioning commitment to humanism. Argues that conventional definitions of "literacy" have tended to be more closely related to particular social structures and values than to cognitive development and…

  7. A comparative test of the theory of reasoned action and the theory of planned behavior in the prediction of condom use intentions in a national sample of English young people.

    Science.gov (United States)

    Sutton, S; McVey, D; Glanz, A

    1999-01-01

    Based on the theories of reasoned action (TRA) and planned behavior (TPB), predictors of condom use intentions were investigated in 949 young people (16-24 years of age) from a national survey conducted in England. Contrary to expectations, the TPB did not perform significantly better than the TRA, even among women. Measures of past behavior were the best predictors of intentions and attenuated the effects of attitude and subjective norm. There was only weak evidence for the multiplicative assumption underlying the TRA and TPB. Although the TRA components were not the strongest predictors, the beliefs on which they are based are potentially amenable to change through information-based intervention programs. A number of practical suggestions for developing intervention strategies are offered.

  8. Health outcomes among HIV-positive Latinos initiating antiretroviral therapy in North America versus Central and South America

    Directory of Open Access Journals (Sweden)

    Carina Cesar

    2016-03-01

    Full Text Available Introduction: Latinos living with HIV in the Americas share a common ethnic and cultural heritage. In North America, Latinos have a relatively high rate of new HIV infections but lower rates of engagement at all stages of the care continuum, whereas in Latin America antiretroviral therapy (ART services continue to expand to meet treatment needs. In this analysis, we compare HIV treatment outcomes between Latinos receiving ART in North America versus Latin America. Methods: HIV-positive adults initiating ART at Caribbean, Central and South America Network for HIV (CCASAnet sites were compared to Latino patients (based on country of origin or ethnic identity starting treatment at North American AIDS Cohort Collaboration on Research and Design (NA-ACCORD sites in the United States and Canada between 2000 and 2011. Cox proportional hazards models compared mortality, treatment interruption, antiretroviral regimen change, virologic failure and loss to follow-up between cohorts. Results: The study included 8400 CCASAnet and 2786 NA-ACCORD patients initiating ART. CCASAnet patients were younger (median 35 vs. 37 years, more likely to be female (27% vs. 20% and had lower nadir CD4 count (median 148 vs. 195 cells/µL, p<0.001 for all. In multivariable analyses, CCASAnet patients had a higher risk of mortality after ART initiation (adjusted hazard ratio (AHR 1.61; 95% confidence interval (CI: 1.32 to 1.96, particularly during the first year, but a lower hazard of treatment interruption (AHR: 0.46; 95% CI: 0.42 to 0.50, change to second-line ART (AHR: 0.56; 95% CI: 0.51 to 0.62 and virologic failure (AHR: 0.52; 95% CI: 0.48 to 0.57. Conclusions: HIV-positive Latinos initiating ART in Latin America have greater continuity of treatment but are at higher risk of death than Latinos in North America. Factors underlying these differences, such as HIV testing, linkage and access to care, warrant further investigation.

  9. Health outcomes among HIV-positive Latinos initiating antiretroviral therapy in North America versus Central and South America

    Science.gov (United States)

    Cesar, Carina; Koethe, John R; Giganti, Mark J; Rebeiro, Peter; Althoff, Keri N; Napravnik, Sonia; Mayor, Angel; Grinsztejn, Beatriz; Wolff, Marcelo; Padgett, Denis; Sierra-Madero, Juan; Gotuzzo, Eduardo; Sterling, Timothy R; Willig, James; Levison, Julie; Kitahata, Mari; Rodriguez-Barradas, Maria C; Moore, Richard D; McGowan, Catherine; Shepherd, Bryan E; Cahn, Pedro

    2016-01-01

    Introduction Latinos living with HIV in the Americas share a common ethnic and cultural heritage. In North America, Latinos have a relatively high rate of new HIV infections but lower rates of engagement at all stages of the care continuum, whereas in Latin America antiretroviral therapy (ART) services continue to expand to meet treatment needs. In this analysis, we compare HIV treatment outcomes between Latinos receiving ART in North America versus Latin America. Methods HIV-positive adults initiating ART at Caribbean, Central and South America Network for HIV (CCASAnet) sites were compared to Latino patients (based on country of origin or ethnic identity) starting treatment at North American AIDS Cohort Collaboration on Research and Design (NA-ACCORD) sites in the United States and Canada between 2000 and 2011. Cox proportional hazards models compared mortality, treatment interruption, antiretroviral regimen change, virologic failure and loss to follow-up between cohorts. Results The study included 8400 CCASAnet and 2786 NA-ACCORD patients initiating ART. CCASAnet patients were younger (median 35 vs. 37 years), more likely to be female (27% vs. 20%) and had lower nadir CD4 count (median 148 vs. 195 cells/µL, p<0.001 for all). In multivariable analyses, CCASAnet patients had a higher risk of mortality after ART initiation (adjusted hazard ratio (AHR) 1.61; 95% confidence interval (CI): 1.32 to 1.96), particularly during the first year, but a lower hazard of treatment interruption (AHR: 0.46; 95% CI: 0.42 to 0.50), change to second-line ART (AHR: 0.56; 95% CI: 0.51 to 0.62) and virologic failure (AHR: 0.52; 95% CI: 0.48 to 0.57). Conclusions HIV-positive Latinos initiating ART in Latin America have greater continuity of treatment but are at higher risk of death than Latinos in North America. Factors underlying these differences, such as HIV testing, linkage and access to care, warrant further investigation. PMID:26996992

  10. Composite Photon Theory Versus Elementary Photon Theory

    CERN Document Server

    Perkins, Walton A

    2015-01-01

    The purpose of this paper is to show that the composite photon theory measures up well against the Standard Model's elementary photon theory. This is done by comparing the two theories area by area. Although the predictions of quantum electrodynamics are in excellent agreement with experiment (as in the anomalous magnetic moment of the electron), there are some problems, such as the difficulty in describing the electromagnetic field with the four-component vector potential because the photon has only two polarization states. In most areas the two theories give similar results, so it is impossible to rule out the composite photon theory. Pryce's arguments in 1938 against a composite photon theory are shown to be invalid or irrelevant. Recently, it has been realized that in the composite theory the antiphoton does not interact with matter because it is formed of a neutrino and an antineutrino with the wrong helicity. This leads to experimental tests that can determine which theory is correct.

  11. A company I can trust? Organizational lay theories moderate stereotype threat for women.

    Science.gov (United States)

    Emerson, Katherine T U; Murphy, Mary C

    2015-02-01

    Women remain under-represented in the leadership of corporate America. According to stereotype threat theory, this under-representation may persist because women are concerned about being stereotyped in business settings. Three studies investigated whether an entity (fixed), compared with an incremental (malleable), organizational lay theory is threatening for women evaluating a consulting company. Men and women viewed a company mission statement or website containing an entity or incremental theory. Results revealed that women--more so than men--trusted the entity company less than the incremental company. Furthermore, only women's mistrust of the entity company was driven by their expectations about being stereotyped by its management. Notably, when combined with high or low representations of female employees, only organizational lay theories predicted trust. Finally, people's--particularly women's--mistrust of the entity company led them to disengage more before interacting with a representative. Implications for women's experiences and outcomes in workplace settings are discussed.

  12. Latin America Report, No. 2720

    Science.gov (United States)

    2007-11-02

    AMERICA REPORT , No, 2720 CONTENTS ENERGY ECONOMICS COSTA RICA ’Excellent Quality’ Oil Reportedly Found in Country (LA REPUBLICA , 18, 21 Jun...Report San Jose LA REPUBLICA in Spanish 18 Jun 83 p 3 [Text] Mexico—Jointly with other concerns, the state enterprise Mexican Petroleum (PEMEX) is...Jose LA REPUBLICA in Spanish 21 Jun 83 p 2 [Text] "We have found five possible horizons that exhibit the characteristics of petroleum deposits in

  13. Prostate cancer in Latin America.

    Science.gov (United States)

    Pow-Sang, Mariela; Destefano, Víctor; Astigueta, Juan Carlos; Castillo, Octavio; Gaona, José Luis; Santaella, Félix; Sotelo, Rene

    2009-11-01

    There is a very low rate of early prostate cancer detection in Latin America, since patients usually are diagnosed when the disease is in advanced stages. Sporadic prostate cancer screening campaigns do exist which allow us to diagnose this disease in earlier stages. Incidence and mortality rates differ widely from country to country, and they are probable underreported in our region since registers may be city-based instead of country-based.

  14. Building America House Simulation Protocols

    Energy Technology Data Exchange (ETDEWEB)

    Hendron, Robert [National Renewable Energy Lab. (NREL), Golden, CO (United States); Engebrecht, Cheryn [National Renewable Energy Lab. (NREL), Golden, CO (United States)

    2010-09-01

    The House Simulation Protocol document was developed to track and manage progress toward Building America's multi-year, average whole-building energy reduction research goals for new construction and existing homes, using a consistent analytical reference point. This report summarizes the guidelines for developing and reporting these analytical results in a consistent and meaningful manner for all home energy uses using standard operating conditions.

  15. Breaking away to South America

    CERN Multimedia

    Anaïs Schaeffer

    2011-01-01

    In December 2010, Peter Dreesen of CERN’s Technology Department (TE) returned from a long trip to South America. In four months he traversed the entire Andean range, from the equator to a latitude of 55 degrees south—on a bicycle!   Peter Dreesen on the Salar de Uyuni Lake, Bolivia. 11 000 kilometres is one long bike ride! And yet, that’s what Peter Dreesen did, travelling from Quito, Ecuador to Ushuaia, Argentina. Peter, an engineer in the TE Department, is no novice: the year before, he cycled from Paris to Peking, a distance of 13 500 kilometres, in just over four months. His latest voyage began last August, when he loaded his bicycle and boarded a plane for South America. In the saddle. After a week of acclimatisation at three thousand metres altitude, Peter left Quito on 6 August 2010. He arrived in Ushuaia (el fin del mundo, the end of the world, as it’s known in South America) on 12 December 2010. He recounts: “It was a bizarre sensation...

  16. Micro-universes and Situated Critical Theory: Postcolonial and Feminist Dialogues in a Comparative Study of Indo-English and Lusophone Women Writers

    NARCIS (Netherlands)

    Passos, J.F. da Silva de Melo Vilela

    2003-01-01

    This dissertation studies six texts written by women (three Indo-English novels, a novel and an anthology of short stories from Cape Verde and a novel from Mozambique). The three Lusophone texts (literature written in Portuguese, though it is not Portuguese literature) are compared to the Indo-Engli

  17. Weight Gain Prevention for College Freshmen: Comparing Two Social Cognitive Theory-Based Interventions with and without Explicit Self-Regulation Training.

    Science.gov (United States)

    Dennis, Elizabeth A; Potter, Kerry L; Estabrooks, Paul A; Davy, Brenda M

    2012-01-01

    The college transition represents a critical period for maintaining a healthy weight, yet intervention participation and retention represent significant challenges. The objective of this investigation was to evaluate the preliminary efficacy and acceptability of two interventions to prevent freshman weight gain. One intervention provided opportunities to improve outcome expectations and self-efficacy within a social cognitive theory framework (SCT), while the other targeted the same variables but focused on explicit training in self-regulation skills (SCTSR). Methods. Freshmen (n = 45) aged >18 years were randomized to a 14-week intervention, SCT or SCTSR; both included online modules and in-class meetings. Of the 45 students randomized, 5 withdrew before the classes began and 39 completed pre- and posttesting. Primary outcomes included body weight/composition, health behaviors, and program acceptability. Analyses included independent sample t-tests, repeated measures ANOVA, and bivariate correlational analyses. Results. Body weight increased over the 14-week period, but there was no group difference. Percent body fat increased in SCTSR but not SCT (mean difference: SCTSR, +1.63 ± 0.52%; SCT, -0.25 ± 0.45%; P = 0.01). Class attendance was 100% (SCTSR) and 98% (SCT); SCTSR students (>50%) remarked that the online tracking required "too much time." Conclusions. The intervention was well received, although there were no improvements in weight outcomes.

  18. A Comparative Study on Situation Theories of Goffman and Meyrowitz%戈夫曼和梅洛维茨“情境论”比较

    Institute of Scientific and Technical Information of China (English)

    车淼洁

    2011-01-01

    在以往有关梅洛维茨和戈夫曼的“情境论”的中文文献中,对于二者的相似性和延续性方面的强调较多。本文通过对二者“情境论”的比较发现,梅洛维茨对戈夫曼的延续并非那么密切,二者无论是概念的定义,还是论述的原理、重心和特性,以及理论的来源和归属都有所不同,前者偏向符号互动论脉络,后者偏向技术主义路线。%This paper discovered that the continuity between Meyrowitz and Goffman's situation theories is vague than that have been expected. There are more differences than similarities in their concept definition, principle, focus and traits. Further, they have d

  19. A comparative analysis of in-medium spectral functions for $N(940)$ and $N^*(1535)$ in real-time thermal field theory

    CERN Document Server

    Ghosh, Sabyasachi

    2015-01-01

    In the real-time thermal field theory, the nucleon self-energy at finite temperature and density is evaluated where an extensive set of pion-baryon ($\\pi B$) loops are considered. On the other side the in-medium self-energy of $N^*(1535)$ for $\\pi N$ and $\\eta N$ loops is also determined in the same framework. The detail branch cut structures for these different $\\pi B$ loops for nucleon $N(940)$ and $\\pi N$, $\\eta N$ loops for $N^*(1535)$ are addressed. Using the total self-energy of $N(940)$ and $N^*(1535)$, which contain the contributions of their corresponding loop diagrams, the complete structures of their in-medium spectral functions have been obtained. The Landau and unitary cut contributions provide two separate peak structures in the nucleon spectral function while $N^*(1535)$ has single peak structure in its unitary cuts. At high temperature, the peak structures of both at their individual poles are attenuated while at high density Landau peak structure of nucleon is completely suppressed and its un...

  20. Interpretation of Fire Symbolization through the Homeostasis Theory and Mythological Criticism (with Special Attention on Persian Mythology, Ferdowsi’s Shahnameh, and Comparative View

    Directory of Open Access Journals (Sweden)

    پورخالقی چترودی پورخالقی چترودی

    2011-08-01

    Full Text Available Mythological criticism is one of the main methods of contemporary literary criticism that has been based on findings of contemporary psychology and anthropology and history of civilisation, has been influenced particularly by the theories of Carl Gustav Jung, about the “collective unconscious” and “archetypes” that his psychology has been called analytic psychology, and his analytic method for mythology has been referred to as “Analytic Mythology.” In this paper, we observe the symbolism of fire in myths, with this approach. The opposition and the projection of formation of homeostasis between the elements is a result of psychological projection of collective unconscious contents on environmental subjects, in order to overcome on the nature. Meanwhile, there are the roles for the fire that it are observed in the world of mythology, including in the Ferdowsi’s Shahnameh and they are divided into two parts: First, in mythology, element of fire, as a higher element and the intermediate in between heaven and earth, is a symbol of the appearance of divine transfigure and eminence of a spiritual material in the world. Second, it is a symbol of heavenly power and object of the All-Powerful God’s torture (fire of hell, which this stage is a terrible and torrid shibboleth (the shibboleth of fire, that should be passed to a higher stage. Key words: mythological criticism, archetype, collective unconscious, Jung, Shahnameh, fire.

  1. Weight Gain Prevention for College Freshmen: Comparing Two Social Cognitive Theory-Based Interventions with and without Explicit Self-Regulation Training

    Directory of Open Access Journals (Sweden)

    Elizabeth A. Dennis

    2012-01-01

    Full Text Available The college transition represents a critical period for maintaining a healthy weight, yet intervention participation and retention represent significant challenges. The objective of this investigation was to evaluate the preliminary efficacy and acceptability of two interventions to prevent freshman weight gain. One intervention provided opportunities to improve outcome expectations and self-efficacy within a social cognitive theory framework (SCT, while the other targeted the same variables but focused on explicit training in self-regulation skills (SCTSR. Methods. Freshmen (n=45 aged >18 years were randomized to a 14-week intervention, SCT or SCTSR; both included online modules and in-class meetings. Of the 45 students randomized, 5 withdrew before the classes began and 39 completed pre- and posttesting. Primary outcomes included body weight/composition, health behaviors, and program acceptability. Analyses included independent sample t-tests, repeated measures ANOVA, and bivariate correlational analyses. Results. Body weight increased over the 14-week period, but there was no group difference. Percent body fat increased in SCTSR but not SCT (mean difference: SCTSR, +1.63 ± 0.52%; SCT, −0.25 ± 0.45%; P=0.01. Class attendance was 100% (SCTSR and 98% (SCT; SCTSR students (>50% remarked that the online tracking required “too much time.” Conclusions. The intervention was well received, although there were no improvements in weight outcomes.

  2. Crustal deformation in northern Central America

    Science.gov (United States)

    Cáceres, Diego; Monterroso, David; Tavakoli, Behrooz

    2005-07-01

    Evaluation of the seismic moment tensor for earthquakes on plate boundary is a standard procedure to determine the relative velocity of plates, which controls the seismic deformation rate predicted from the slip on a single fault. The moment tensor is also decomposed into an isotropic and a deviatoric part to discover the relationship between the average strain rate and the relative velocity between two plates. We utilize this procedure to estimate the rates of deformation in northern Central America where plate boundaries are seismically well defined. Four different tectonic environments are considered for modelling of the plate motions. The deformation rates obtained here compare well with those predicted from the plate motions models and are in good agreement with actual observations. Deformation rates on faults are increasingly being used to estimate earthquake recurrence from information on fault slip rate and more on how we can incorporate our current understanding into seismic hazard analyses.

  3. Hepatitis B seroprevalence in Latin America.

    Science.gov (United States)

    Silveira, T R; da Fonseca, J C; Rivera, L; Fay, O H; Tapia, R; Santos, J I; Urdeneta, E; Clemens, S A

    1999-12-01

    The seroprevalence of hepatitis B was investigated in over 12,000 subjects in six countries of Latin America: Argentina, Brazil, Chile, the Dominican Republic, Mexico, and Venezuela. Each study population was stratified according to age, gender, and socioeconomic status. Antibodies against hepatitis B core antigen (anti-HBc) were measured in order to determine hepatitis B infection. The highest overall seroprevalence was found in the Dominican Republic (21.4%), followed by Brazil (7.9%), Venezuela (3.2%), Argentina (2.1%), Mexico (1.4%), and Chile (0.6%). In all the countries an increase in seroprevalence was found among persons 16 years old and older, suggesting sexual transmission as the major route of infection. In addition, comparatively high seroprevalence levels were seen at an early age in the Dominican Republic and Brazil, implicating a vertical route of transmission.

  4. Waltz's Theory of Theory

    DEFF Research Database (Denmark)

    Wæver, Ole

    2009-01-01

    Kenneth N. Waltz's 1979 book, Theory of International Politics, is the most influential in the history of the discipline. It worked its effects to a large extent through raising the bar for what counted as theoretical work, in effect reshaping not only realism but rivals like liberalism and refle......Kenneth N. Waltz's 1979 book, Theory of International Politics, is the most influential in the history of the discipline. It worked its effects to a large extent through raising the bar for what counted as theoretical work, in effect reshaping not only realism but rivals like liberalism...... and reflectivism. Yet, ironically, there has been little attention to Waltz's very explicit and original arguments about the nature of theory. This article explores and explicates Waltz's theory of theory. Central attention is paid to his definition of theory as ‘a picture, mentally formed' and to the radical anti......-empiricism and anti-positivism of his position. Followers and critics alike have treated Waltzian neorealism as if it was at bottom a formal proposition about cause-effect relations. The extreme case of Waltz being so victorious in the discipline, and yet being consistently mis-interpreted on the question of theory...

  5. 行业协会在国家知识产权体制中的地位-以中美比较为基础%The Status of Trade Association in National Intellectual Property System:Comparative Research on China and America

    Institute of Scientific and Technical Information of China (English)

    代辉

    2015-01-01

    As the increasing importance of Intellectual property to economy development, developed countries like America and Japan have been taking various measures to strengthen the creation, protection and operation of IP right, almost composed to be an IP system. Within it, trade association plays a signiifcant role as mechanisms of service and negotiation. By comparative research on trade associations in China and America, we find that specific functions of trade association in one country varied and depend on a handful of factors including overall IP strategy, the need of industry or enterprise, channel between trade association and government. Under the context of China nowadays, we suggest that trade association in IP-related industry should set IP department within it Providing basic IP services; provide special services based on the need of enterprise and the character of the industry; build institutionalized relationship of talking and collaboration between trade association and IP administrative department; Trade association should make and enforce the IP strategy of industry.%20世纪80年代以来,知识产权对于经济发展的重要性越来越明显,美国、日本等发达国家一直都致力于采取各种措施加强知识产权创造、运用和保护,已渐成体制。而行业协会是其中非常重要的协调和服务机制。通过中、美对比可以发现,行业协会在具体知识产权功能的发挥上有所不同,这主要取决于不同知识产权的战略目标设定、产业或企业的需求、与政府的沟通和合作机制等因素。结合当前中国的现实情况,建议:(一)知识产权相关产业的行业协会应内设知识产权部门,提供基础知识产权服务;(二)行业协会特别提供符合产业特点的知识产权服务;(三)建立行业协会与知识产权行政部门的沟通与合作机制;(四)行业协会制定并实施行业知识产权发展战略。

  6. A Comparative-Interdisciplinary Study of the Production and Publication of Works of Fiction by Simin Daneshvar and Belgheis Soleimani on the Basis of the Theory of Paratextuality

    Directory of Open Access Journals (Sweden)

    F. Rostami

    2015-08-01

    Full Text Available Interdisciplinary studies confirm the fact that different branches of the humanities are closely connected with each other and increase each others’ efficiency. Since comparative interdisciplinary studies also include fields that are not purely literary, such as printing and publishing industries, the present study aims to analyze how cultural products achieve a better marketing through designing processes. Paratextuality, from Genette’s point of view, is the theoretical basis of this study, and peritexts and epitexts in the novels of Daneshvar and Soleimani are analyzed here. First, we define “comparative interdisciplinary study” and then discuss the peritexts and the epitexts in their novels. This is a library-based research; however, data is also collected through interviews with the publishers of their novels, Kharazmi, Ghoghnoos and Cheshmeh publications. It is a descriptive-analytical study and its findings show that there are some features in the appearance of books that motivate the customers to buy them. During years, because of cultural structures, advertising strategies and critical reviews, these features have changed. However, this study shows that the scope of the changes in the novels of Soleimani is vaster; in other words, by changing such features, publishers have been able to create a better marketing for Soleimani, even though he is less known than Daneshvar.

  7. We Make This Road by Walking: Evangelical Lutheran Church in America (ELCA) Diaconal Ministers as Emancipatory Educators of Adults

    Science.gov (United States)

    Gable, Nancy Eileen

    2014-01-01

    The purpose of this mixed method study was to discover how diaconal ministers in the Evangelical Lutheran Church in America (ELCA) practice their ministry and describe and understand their role as educators of adults. The theoretical framework of the study was informed by the intersection of critical theory, feminist theory, and liberation…

  8. Massa marginal na América Latina: mudanças na conceituação e enfrentamento da pobreza 40 anos após uma teoria Marginal Mass in Latin America: changes in how poverty is conceptualised and addressed 40 years after the theory

    Directory of Open Access Journals (Sweden)

    Hayda Alves

    2012-01-01

    Full Text Available As abordagens e expressões da questão social como pobreza envolvem discussões acerca da configuração e do enfrentamento de fraturas sociais, vinculadas ao processo de reestruturação produtiva capitalista, em diversas dimensões: econômicas, políticas, culturais e sociais. O objetivo do artigo é rever esse debate, passados 40 anos da teoria de marginalidade latino-americana, que inaugurou um olhar específico sobre a pobreza a partir da tese de massa marginal de Jose Nun. Ao longo desse período, são destacadas singularidades dos olhares sobre a pobreza como questão social na América Latina e a aproximação com os teóricos franceses da exclusão social. Após a década de 1990, observa-se o direcionamento do debate na perspectiva teórica da exclusão social, operacionalizada como uma categoria capaz de revelar processos de fragilização e ruptura da coesão social a partir de múltiplos níveis e dimensões relacionais.Approaches to, and expressions of, social issues as poverty involve discussing how social fractures connected with the process of capitalist restructuring are shaped and to be addressed in several dimensions (economic, political, cultural and social. This paper aims to review this debate 40 years after Jose Nun's marginality theory turned a fresh eye to Latin American poverty. It highlights singularities over that period in ways of looking at poverty as a social issue in Latin America and the approximation with French theorists of social exclusion. After the 1990's the debate is steered by the theoretical perspective of social exclusion, operationalised as a category capable of revealing the weakening and breakdown of social cohesion in terms of multiple levels and relational dimensions.

  9. Neo-newtonian theories

    CERN Document Server

    Fabris, J C

    2015-01-01

    General Relativity is the modern theory of gravitation. It has replaced the newtonian theory in the description of the gravitational phenomena. In spite of the remarkable success of the General Relativity Theory, the newtonian gravitational theory is still largely employed, since General Relativity, in most of the cases, just makes very small corrections to the newtonian predictions. Moreover, the newtonian theory is much simpler, technically and conceptually, when compared to the relativistic theory. In this text, we discuss the possibility of extending the traditional newtonian theory in order to incorporate typical relativistic effects, but keeping the simplicity of the newtonian framework. We denominate these extensions neo-newtonian theories. These theories are discussed mainly in the contexts of cosmology and compact astrophysical objects.

  10. Comparative Analysis for the Urban Metabolic Differences of Two Types of Cities in the Resource-Dependent Region Based on Emergy Theory

    Directory of Open Access Journals (Sweden)

    Chang Liu

    2016-07-01

    Full Text Available Urban metabolism analysis has become a useful and effective tool to explore urban socio-economic processes. In this research, in order to explore the similarities and differences of metabolic characteristics and variation rules of different types of resource-dependent cities, we selected two cities—Taiyuan and Jincheng, the capital and a traditional resource-dependent city of Shanxi province, respectively, as research subjects, we also established an urban metabolic evaluation framework by employing a set of eight emergy-based indicators from socio-economic data from 2007 to 2014, and compared the similarities and discrepancies from the perspectives of metabolic structure, intensity, pressure, and efficiency, and put forward some suggestions for pursuing sustainable development for both cities and pointed out that more types of resource-dependent cities should be incorporated in future research work.

  11. Theory of property rights:comparing Marx with Coase%产权理论:马克思和科斯的比较

    Institute of Scientific and Technical Information of China (English)

    吴易风

    2008-01-01

    马克思用崭新的无产阶级世界观构建了产权理论大厦的主体工程.产权是所有制的法律形态.作为财产形式的法权关系,产权不但是反映经济关系的意志关系,而且是历史的产物和历史的范畴,具有历史的形式.马克思着重研究了资本主义的财产关系,即在揭示经济领域中资本和雇佣劳动之间对立关系的基础上,将价值增值过程表述为法学和产权理论中的所有权关系及其占有过程,涉及所有权、占有权、使用权、支配权、经营权、索取权、继承权等一系列权力的统一与分离,从而论证了资本主义财产关系和产权制度的阶级对抗性质.马克思揭示的从"消极扬弃"到"积极扬弃"的变革方向,把资本主义生产关系及其产权制度将被公有制的经济关系和法权关系所代替这一历史必然性和长期发展趋势清晰地呈现出来.%Marx used a completely new proletarian world outlook to construct the main body of the theoretical edifica of property rights.Property rights are the legal form of ownership.As a relationship of legal rights of the property form,property rights are not only a relationship between two wills which reflects economic relationships but also a product of history,belonging to the category of history and assuming the form of history.Marx made a special effort to study capitalist property relations,that is,on the basis of revealing the opposition between capital and wage labor in the economic field,he sought to describe the value-added process as ownership relations and a process of appropriation in terms of the law and the theory of property rights,involving the integration and separation of various powers such as ownership,right of possession,right of use,right of disposal,right of operation,right of demand and right of inheritance.In this way he proved the class opposition in capitalist property relations and the system of property rights.The changing direction from

  12. Terrestrial and freshwater Tardigrada of the Americas.

    Science.gov (United States)

    Meyer, Harry A

    2013-12-16

    This paper provides a comprehensive list of the freshwater and terrestrial tardigrade fauna reported from the Americas (North America, South America, Central America and the West Indies), their distribution in the Americas, and the substrates from which they have been reported. Data were obtained from 316 published references. Authors' identifications were accepted at face value unless subsequently amended. Taxa were assigned to sub-national units (states, provinces, etc.). Many areas, in particular large portions of Central America and the West Indies, have no reported tardigrade fauna.        The presence of 54 genera and 380 species has been reported for the Americas; 245 species have been collected in the Nearctic ecozone and 251 in the Neotropical ecozone. Among the tardigrade species found in the Americas, 52 are currently considered cosmopolitan, while 153 species have known distributions restricted to the Americas. Based on recent taxonomic revision of the genus Milnesium, the vast majority of records of M. tardigradum in the Americas should now be reassigned to Milnesium tardigradum sensu lato, either because the provided description differs from M. tardigradum sensu stricto or because insufficient description is provided to make a determination; the remainder should be considered Milnesium cf. tardigradum.        Most terrestrial tardigrade sampling in the Americas has focused on cryptogams (mosses, lichens and liverworts); 90% of the species have been collected in such substrates. The proportion of species collected in other habitats is lower: 14% in leaf litter, 20% in soil, and 24% in aquatic samples (in other terrestrial substrates the proportion never exceeds 5%). Most freshwater tardigrades have been collected from aquatic vegetation and sediment. For nine species in the Americas no substrates have been reported. 

  13. Environment, Politics and Governance in Latin America

    OpenAIRE

    Karen M. Siegel

    2016-01-01

    Environmental Governance in Latin America, edited by Fábio de Castro, Barbara Hogenboom, and Michiel Baud. Palgrave Macmillan, 2016.Environmental Politics in Latin America: Elite Dynamics, the Left Tide and Sustainable Development, edited by Benedicte Bull and Mariel Aguilar-Støen. Routledge, 2015.A Fragmented Continent: Latin America and the Global Politics of Climate Change, by Guy Edwards and J. Timmons Roberts. MIT Press, 2015.Ecuador’s Environmental Revolutions: Ecoimperialists, Ecodepen...

  14. Una visita en Sud America

    Science.gov (United States)

    1982-09-01

    Oisfrute de una estadfa en el Hotel La Silla, el mejor hotel de Sud America con su tan unica atmosfera extraterrestre! Los espera su calificado personal de experimentados hoteleros, jefes de cocina, etc., ansiosos todos de satisfacer sus deseos hasta el mas mfnimo detalle. Naturalmente nuestro espacioso restaurant de tres estrellas ofrece un completo surtido de exquisitas comidas y deliciosos tragos (conocedores usualmente eligen "Oelicia Orion" 0 "Centauro Especial"). EI servicio cempleto durante 24 horas incluye nuestra ya mundialmente famosa "Cena de medianoche para los miradores de estrellas", por eso - no olvide: No pierda la oportunidad de una estadfa en EL HOTEL LA SILLA - una experiencia maravillosa!

  15. Dispersal time for ancient human migrations: Americas and Europe colonization

    Science.gov (United States)

    Flores, J. C.

    2007-07-01

    I apply the recently proposed intermittence strategy to investigate the ancient human migrations in the world. That is, the Americas colonization (Bering-bridge and Pacific-coast theories) and Neanderthal replacement in Europe around 45000 years before the present. Using a mathematical equation related to diffusion and ballistic motion, I calculate the colonization time in all these cases in good agreement with archeological data (including Neolithic transition in Europe). Moreover, to support these calculations, I obtain analytically the effective speed of colonization in Europe veff=0.62 [km/yr] and related to the Aurignacian culture propagation.

  16. Building America Top Innovations 2012: House Simulation Protocols (the Building America Benchmark)

    Energy Technology Data Exchange (ETDEWEB)

    none,

    2013-01-01

    This Building America Top Innovations profile describes the DOE-sponsored House Simulation Protocols, which have helped ensure consistent and accurate energy-efficiency assessments for tens of thousands of new and retrofit homes supported by the Building America program.

  17. Eyeless in America, the Sequel: Hollywood and Indiewood's Iraq War on Film

    Science.gov (United States)

    Blackmore, Tim

    2012-01-01

    This article builds on conclusions drawn in the article "Eyeless in America," by the same author and considers how 50 American films about the wars in Iraq and Afghanistan intended to function as what Jacques Ellul called "integration propaganda" fared. This article considers and rejects a number of theories about why most…

  18. Eyeless in America, the Sequel: Hollywood and Indiewood's Iraq War on Film

    Science.gov (United States)

    Blackmore, Tim

    2012-01-01

    This article builds on conclusions drawn in the article "Eyeless in America," by the same author and considers how 50 American films about the wars in Iraq and Afghanistan intended to function as what Jacques Ellul called "integration propaganda" fared. This article considers and rejects a number of theories about why most feature war films failed…

  19. Using Mobile Devices in Environmental Education and Education for Sustainable Development—Comparing Theory and Practice in a Nation Wide Survey

    Directory of Open Access Journals (Sweden)

    Steffen Schaal

    2015-07-01

    Full Text Available Mobile electronic devices (MED with integrated GPS receivers are increasingly popular in environmental education (EE and education for sustainable development (ESD. This paper aims at identifying the possible applications of these devices, as well as identifying obstacles to such utilities. Therefore, a two-part study was conducted: An expert Delphi study and a nationwide online survey in Germany and Austria. In this paper, the results of the online survey are reported and compared to the findings of the Delphi study. The questionnaire of the online survey was based on a theoretical framework comprising different dimensions for the use of MED. Overall, 120 projects were included in the study. The most common target groups were school classes and the devices most frequently used were GPS receivers. The projects addressed the criteria of ESD, such as elaboration of local/global perspectives of sustainability and competencies of EE like pro-environmental behavior or attitudes. All projects were classified according to their educational design in a 2 × 2-scheme. The most common activities were predefined routes within a narrow instructional setting. Divergences between expert views and practical realization are identified and discussed.

  20. Thinking social sciences from Latin America at the epochal change

    Directory of Open Access Journals (Sweden)

    Jaime Antonio Preciado Coronado

    2016-07-01

    Full Text Available From the legacy of an original disciplinary approach, as the Dependence theory and its Marxian critics, or the neo-structural economic theory founded by The Economic Commission for Latin America (ECLA, the Latin-American social sciences deny the Anglo-European centered approaches, in the way of reaffirming its own critical thinking, including the neo-colonial practices. The challenge for this critical thinking is to be, simultaneously, cosmopolitan and Latin American’s one. In this process, the Latin-American social thinking is regaining its own originality and its vigorous proposals, thanks to a rich south-south dialogue, that implies a global character of its reflections and the questioning of its universal references. Although neither classical nor western Marxism are hegemonic within critical theory, the (neo Marxism enriched with criticism of the coloniality of power, the theory of World-System, critical geopolitics and political ecology recover the field of critical theory in key founder of an epochal thinking time. Epistemological debates with post-structuralism and postmodern approaches configure various recent developments in critical theory

  1. Comparative evaluations.

    Science.gov (United States)

    Bibace, Roger

    2008-03-01

    My response to Engelmann (2008) will be based on several questions that will allow both its author and the general reader to determine whether the assumptions I make as an interpreter of this complex paper are congruent or incongruent with their own interpretations of the text. The interpretations by the writer, by any commentator, and the diverse interpretations of a general audience together with my own interpretations will, I hope, facilitate some fruitful 'comparative evaluations.' I articulate my inferences of the most dense part of the paper, namely the 'concrete immediate Consciousness and the developing absent outside.' My hope is to address Engelmann's question: "Am I in a better disposition to judge modern theories of consciousness?" The last section of my response spells out more personal comments to my all too brief and single encounter with Arno Engelmann. It is there that Arno Engelmann's fascinating statement "I am a citizen of the world" is addressed through its counterparts in my life.

  2. 76 FR 68047 - Making It Easier for America's Small Businesses and America's Exporters to Access Government...

    Science.gov (United States)

    2011-11-02

    ...-oriented web or mobile applications. (5) Agencies shall integrate BusinessUSA, including ready access to... Businesses and America's Exporters to Access Government Services to Help Them Grow and Hire #0; #0; #0... Easier for America's Small Businesses and America's Exporters to Access Government Services to Help...

  3. China to be Latin America's2nd largest trade partner in 2015

    Institute of Scientific and Technical Information of China (English)

    2011-01-01

    Xnhua reported that China will become Latin America's second largest trade partner as early as in 2015,the UN Economic Commission for Latin America and the Caribbean (ECLAC) said on September 8.Osvaldo Kacef,director of ECLAC's Economic Development Division,said the current China-Latin America trade volume has already reached that of Europe.

  4. 76 FR 14101 - Bruss North America; Russell Springs, KY; Bruss North America; Orion, MI; Amended Revised...

    Science.gov (United States)

    2011-03-15

    ... Employment and Training Administration Bruss North America; Russell Springs, KY; Bruss North America; Orion... Springs, Kentucky. The workers are engaged in the production of automobile parts and component parts. The... production of automobile parts at the Russell Springs, Kentucky location of Bruss North America. The...

  5. Gastroenterology training in Latin America

    Institute of Scientific and Technical Information of China (English)

    Henry Cohen; Roque Saenz; Luiz E de Almeida Troncon; Maribel Lizarzabal; Carolina Olano

    2011-01-01

    Latin America is characterized by ethnic, geographical, cultural, and economic diversity; therefore, training in gastroenterology in the region must be considered in this context. The continent's medical education is characterized by a lack of standards and the volume of research continues to be relatively small. There is a multiplicity of events in general gastroenterology and in sub-disciplines, both at regional and local levels, which ensure that many colleagues have access to information. Medical education programs must be based on a clinical vision and be considered in close contact with the patients. The programs should be properly supervised, appropriately defined,and evaluated on a regular basis. The disparity between the patients' needs, the scarce resources available, and the pressures exerted by the health systems on doctors are frequent cited by those complaining of poor professionalism. Teaching development can play a critical role in ensuring the quality of teaching and learning in universities.Continuing professional development programs activities must be planned on the basis of the doctors' needs, with clearly defined objectives and using proper learning methodologies designed for adults. They must be evaluated and accredited by a competent body, so that they may become the basis of a professional regulatory system. The specialty has made progress in the last decades, offering doctors various possibilities for professional development. The world gastroenterology organization has contributed to the speciality through three distinctive, but closely inter-related, programs: Training Centers, Train-the-Trainers, and Global Guidelines, in which Latin America is deeply involved.

  6. Why Don’t They Participate? A Self-Study of Chinese Graduate Students’ Classroom:Involvement in North America

    OpenAIRE

    2010-01-01

    China is now the world’s largest source of international students. In terms of learning performance, Chinese graduate students studying in North America exhibit distinct differences from students who are born and raised in North America. Conflicting cultural values compel Chinese students to reconcile East-West cultures, and put an onus on North American instructors to implement culturally-sensitive pedagogy. Employing the theoretic framework of yin-yang theory, this paper examines Chin...

  7. Lianas as invasive species in North America: Chapter 28

    Science.gov (United States)

    Leicht-Young, Stacey A.; Pavlovic, Noel B.

    2015-01-01

    Liana diversity is typically low in the temperate zones; however, the influx of non-native invasive liana species in North America has increased local diversity at the expense of native habitats and species. Some of the most illustrative studies of invasive lianas in temperate North America compared the biological traits of invasive lianas with native congeners or ecological analogs. The majority of these studies focused on two species, Celastrus orbiculatus (oriental bittersweet) and Lonicera japonica (Japanese honeysuckle). Temperate zone lianas generally have higher photosynthetic rates than other early successional species and their host trees. Invasive lianas are having an increasing impact on the dynamics and trajectories of North American plant communities. They often exhibit superior growth and survival compared to their native counterparts, and in some cases, invasive lianas may directly contribute to the decline of their native correlates.

  8. Beyond America's War on Drugs: Developing Public Policy to Navigate the Prevailing Pharmacological Revolution

    Directory of Open Access Journals (Sweden)

    Andrew Golub

    2015-03-01

    Full Text Available This paper places America's “war on drugs” in perspective in order to develop a new metaphor for control of drug misuse. A brief and focused history of America's experience with substance use and substance use policy over the past several hundred years provides background and a framework to compare the current Pharmacological Revolution with America's Nineteenth Century Industrial Revolution. The paper concludes with cautions about growing challenges and provides suggestions for navigating this revolution and reducing its negative impact on individuals and society.

  9. EVOLUTION OF THE PHENOMENON INTEGRATION IN LATIN AMERICA (SOUTH AMERICA

    Directory of Open Access Journals (Sweden)

    EMILIAN M. DOBRESCU

    2013-05-01

    Full Text Available With the end of the Cold War, the creation of a South American economic space has become an important priority of regional powers (Brazil, Argentina, Chile, and the great powers after the war, the U.S. and the European Union (the current name. This integration process has had particular features derived from characteristics of Latin American countries. Multitude of organizations integrative role once again demonstrates the specificity of this process in Latin America to other areas of the world: Africa, Asia, Europe, etc. Contradictory developments phenomenon / Latin American integration process gives substance its characteristic and I will make, probably deeply and future. The purpose of the work and objectives are: know the main features of the phenomenon in Latin American integrationist Objectives: following our vision of a historical phenomenon; brief characterization of the most important Latin American organizations, establishing current and future consequences of integrationist phenomenon in this part of the world.

  10. Rural Development: Sixth Annual Report of the President to the Congress on Government Services to Rural America.

    Science.gov (United States)

    Economic Research Service (USDA), Washington, DC. Economic Development Div.

    As the sixth annual report on the availability of government and government assisted rural services, this report: (1) outlines executive branch efforts to improve services to rural America during fiscal year 1974; (2) measures services to rural America by comparing the distribution of 1974 outlays in 4 broad program categories important to rural…

  11. Prostate cancer in Brazil and Latin America: epidemiology and screening

    Directory of Open Access Journals (Sweden)

    Rafael Rocha Tourinho-Barbosa

    Full Text Available ABSTRACT Introduction: Prostate cancer is one of the tumors with higher incidence and mortality among men in the World. Epidemiological data are influenced by life expectancy of population, available diagnostic methods, correct collection of data and quality of health services. Screening of the disease is not standardized around the World. Up till now there is no consensus about the risks versus benefits of early detection. There are still missing data about this pathology in Latin America. Objective: to revise current epidemiologic situation and early diagnosis policies of prostate cancer in Brazil and Latin America. Materials and Methods: Medline, Cochrane Library and SciELO databases were reviewed on the subject of epidemiology and screening of prostate cancer. Screening research was performed in websites on national public health organizations and Latin America. Screening recommendations were obtained from those governmental organizations and from Latin American urological societies and compared to the most prominent regulatory agencies and societies of specialists and generalists from around the World. Results: Brazil and Latin America have a special position in relation to incidence and mortality of prostate cancer. In Brazil, it occupies the first position regarding incidence of cancer in men and the second cause of mortality. Central America has the highest rate of mortality of the continent with lower incidence/mortality ratios. Screening recommendations are very distinct, mainly among regulatory organs and urological societies. Conclusion: prostate cancer epidemiology is an important health public topic. Data collection related to incidence and mortality is still precarious, especially in less developed countries. It is necessary to follow-up long term screening studies results in order to conclude its benefits.

  12. Prostate cancer in Brazil and Latin America: epidemiology and screening

    Science.gov (United States)

    Tourinho-Barbosa, Rafael Rocha; Pompeo, Antonio Carlos Lima; Glina, Sidney

    2016-01-01

    ABSTRACT Introduction: Prostate cancer is one of the tumors with higher incidence and mortality among men in the World. Epidemiological data are influenced by life expectancy of population, available diagnostic methods, correct collection of data and quality of health services. Screening of the disease is not standardized around the World. Up till now there is no consensus about the risks versus benefits of early detection. There are still missing data about this pathology in Latin America. Objective: to revise current epidemiologic situation and early diagnosis policies of prostate cancer in Brazil and Latin America. Materials and Methods: Medline, Cochrane Library and SciELO databases were reviewed on the subject of epidemiology and screening of prostate cancer. Screening research was performed in websites on national public health organizations and Latin America. Screening recommendations were obtained from those governmental organizations and from Latin American urological societies and compared to the most prominent regulatory agencies and societies of specialists and generalists from around the World. Results: Brazil and Latin America have a special position in relation to incidence and mortality of prostate cancer. In Brazil, it occupies the first position regarding incidence of cancer in men and the second cause of mortality. Central America has the highest rate of mortality of the continent with lower incidence/mortality ratios. Screening recommendations are very distinct, mainly among regulatory organs and urological societies. Conclusion: prostate cancer epidemiology is an important health public topic. Data collection related to incidence and mortality is still precarious, especially in less developed countries. It is necessary to follow-up long term screening studies results in order to conclude its benefits. PMID:27622278

  13. Latin America wind market assessment. Forecast 2013-2022

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2013-10-15

    Wind Power Activities by Country: Developers/Owners, Wind Plant Sizes, Wind Turbines Deployed, Commissioning Dates, Market Share, and Capacity Forecasts Latin American markets are a subject of intense interest from the global wind industry. Wind plant construction across Latin America is modest compared to the more established markets like the United States, Europe, and China, but it is an emerging market that is taking off at a rapid pace. The region has become the hottest alternative growth market for the wind energy industry at a time when growth rates in other markets are flat due to a variety of policy and macroeconomic challenges. Globalization is driving sustainable economic growth in most Latin American countries, resulting in greater energy demand. Wind is increasingly viewed as a valuable and essential answer to increasing electricity generation across most markets in Latin America. Strong wind resources, coupled with today's sophisticated wind turbines, are providing cost-effective generation that is competitive with fossil fuel generation. Most Latin American countries also rely heavily on hydroelectricity, which balances well with variable wind generation. Navigant Research forecasts that if most wind plants under construction with planned commissioning go online as scheduled, annual wind power installations in Latin America will grow from nearly 2.2 GW in 2013 to 4.3 GW by 2022. This Navigant Research report provides a comprehensive view of the wind energy market dynamics at play in Latin America. It offers a country-by-country analysis, outlining the key energy policies and development opportunities and barriers and identifying which companies own operational wind plants and which wind turbine vendors supplied those projects. Market forecasts for wind power installations, capacity, and market share in Latin America, segmented by country and company, extend through 2022. The report also offers an especially close analysis of Brazil and Mexico

  14. Electricity and gas regulation in Latin America

    Energy Technology Data Exchange (ETDEWEB)

    Cameron, Peter N.

    1998-08-01

    Contains Executive Summary and Chapters on: Background Information; The Electricity Chain; The Gas Chain; The Regulatory Structure; International Activity; Argentina; Bolivia; Brazil; Chile; Colombia; Mexico; Peru; Venezuela; Central America; Other Latin American Markets; Non-Latin America Markets; The Caribbean. (Author)

  15. Mapping recent chikungunya activity in the Americas

    Science.gov (United States)

    To better understand chikungunya activity in the America we mapped recent chikungunya activity in the Americas. This activity is needed to better understand that the relationships between climatic factors and disease outbreak patters are critical to the design and constructing of predictive models....

  16. SOUTH AMERICA: INDUSTRIAL ROUNDWOOD SUPPLY POTENTIAL

    Directory of Open Access Journals (Sweden)

    Ronalds W. Gonzalez

    2008-02-01

    Full Text Available South America has substantial potential to expand its forest plantations and raw material supply. From 1997 to 2005, South America had a high annual growth rate in the production of industrial roundwood, with Brazil and Chile being the most important countries. In the same period, Asia had the only negative regional production growth rate in the world, and China became the largest round wood importer in the world. This paper summarizes the status of production, consumption, imports, and exports of industrial roundwood and forest products in South America. Produc-tion and exports from South America have continually increased at annual growth rates exceeding the forestry sector in general and the U.S. in particular. Based on timber growing investments to date, a strong timber production and forest products manufacturing sector has developed in the Southern Cone countries of Chile, Brazil, Argentina, and Uruguay, and is increasing in other countries in Latin America. There will be continued opportunities for forest plantations and new manufacturing facilities throughout South America, tempered somewhat by perceived country financial and political risks. These opportunities will allow South America to increase its share of world production and increase imports to North America and to Asia.

  17. Developments in Impact Assessment in North America

    Science.gov (United States)

    Beginning with a background of recent global developments in this area, this presentation will focus on how global research has impacted North America and how North America is providing additional developments to address the issues of the global economy. Recent developments inc...

  18. Articles on Comparative Literature in China

    Institute of Scientific and Technical Information of China (English)

    2005-01-01

    <正>Imperialist Hegemony,Cultural Self-Consciousness and Comparative Literature Yue Daiyun The End of Course Theory of Comparative Literature:also a Talk of the Debate about Advanced Theory of Comparative Literature Fang Hanwen

  19. Z Theory

    OpenAIRE

    Nekrasov, Nikita

    2004-01-01

    We present the evidence for the existence of the topological string analogue of M-theory, which we call Z-theory. The corners of Z-theory moduli space correspond to the Donaldson-Thomas theory, Kodaira-Spencer theory, Gromov-Witten theory, and Donaldson-Witten theory. We discuss the relations of Z-theory with Hitchin's gravities in six and seven dimensions, and make our own proposal, involving spinor generalization of Chern-Simons theory of three-forms. Based on the talk at Strings'04 in Paris.

  20. Cohabitation and marriage in the Americas : geo-historical legacies and new trends

    OpenAIRE

    Esteve Palós, Albert

    2016-01-01

    This volume presents an innovative study of the rise of unmarried cohabitation in the Americas, from Canada to Argentina. Using an extensive sample of individual census data for nearly all countries on the continent, it offers a cross-national, comparative view of this recent demographic trend and its impact on the family. The book offers a tour of the historical legacies and regional heterogeneity in unmarried cohabitation, covering: Canada, the United States, Mexico, Central America, Colomb...

  1. South America Province Boundaries, 1999 (prv6ag)

    Data.gov (United States)

    U.S. Geological Survey, Department of the Interior — South America is part of Region 6 (Central and South America) for the World Energy Assessment. South America was divided into 107 geologic provinces as background...

  2. 霍布斯、卢梭社会契约理论之比较分析%The comparative analysis of Hobbes and Rousseau’s social contract theory

    Institute of Scientific and Technical Information of China (English)

    朱慧嫣; 陈文华

    2014-01-01

    社会契约理论是近代西方思想家提出的关于国家起源及政府构建的系统理论阐述。在众多社会契约理论中,其中以霍布斯与卢梭之思想最为突出,霍布斯主张通过订立契约建立强大的君主集权制国家,其思想核心为“主权在君”;而卢梭则主张通过订立契约建立民主共和国,其核心思想为“主权在民”。通过将霍布斯、卢梭的社会契约理论放在历史长河中审视,并结合时代背景,比较契约订立原因、授权范围和主权行使方式,充分了解其优缺点,及其可行性,为现代政治生活提供借鉴和指导。%The social contract theory is put forward by the modern western thinkers about national origin theory and building the system of government. Hobbes argues that to enter into a contract to build a strong autocratic monarchy country, the core of his thought is "monarch has sovereignty";Rousseau argues that through the conclusion of the contract the establishment of a democratic republic, the core of his thought is"citizens have sovereignty". Look at Hobbes, Rousseau's social contract theory, combined with times background, reason, scope of authorization, and compare their contracts sovereignty, fully understand its advantages and disadvantages and feasibility, provide reference and guidance for the modern political life.

  3. EXCEDE Energy Deposition. Theory and Experiment Compared.

    Science.gov (United States)

    1980-11-30

    1 -2 -1 -1 15 ergs cm sec ster (or 10 ergs CID sec ster at 391 1 A) . The calculated initensity (Figure 3-()), under the same viewingo Condi tions...t kli a s fo r 1 himn i fig filltfire IK\\CElE exper iment s ,itI i s v\\O I.. i mIo rt ant to0 bc able t1 dC 1 ISt i1 i,11i sli bet iSo.OlJI theSe rel

  4. Gravity anomalies, plate tectonics and the lateral growth of Precambrian North America

    Science.gov (United States)

    Thomas, M. D.; Grieve, R. A. F.; Sharpton, V. L.

    1988-01-01

    The widespread gravity coverage of North America provides a picture of the gross structural fabric of the continent via the trends of gravity anomalies. The structural picture so obtained reveals a mosaic of gravity trend domains, many of which correlate closely with structural provinces and orogenic terranes. The gravity trend map, interpreted in the light of plate-tectonic theory, thus provides a new perspective for examining the mode of assembly and growth of North America. Suture zones, palaeosubduction directions, and perhaps, contrasting tectonic histories may be identified using gravity patterns.

  5. Spin density distribution in open-shell transition metal systems: A comparative post-Hartree-Fock, Density Functional Theory and quantum Monte Carlo study of the CuCl2 molecule

    CERN Document Server

    Caffarel, Michel; Scemama, Anthony; Ramírez-Solís, Alejandro

    2014-01-01

    We present a comparative study of the spatial distribution of the spin density (SD) of the ground state of CuCl2 using Density Functional Theory (DFT), quantum Monte Carlo (QMC), and post-Hartree-Fock wavefunction theory (WFT). A number of studies have shown that an accurate description of the electronic structure of the lowest-lying states of this molecule is particularly challenging due to the interplay between the strong dynamical correlation effects in the 3d shell of the copper atom and the delocalization of the 3d hole over the chlorine atoms. It is shown here that qualitatively different results for SD are obtained from these various quantum-chemical approaches. At the DFT level, the spin density distribution is directly related to the amount of Hartree-Fock exchange introduced in hybrid functionals. At the QMC level, Fixed-node Diffusion Monte Carlo (FN-DMC) results for SD are strongly dependent on the nodal structure of the trial wavefunction employed (here, Hartree-Fock or Kohn-Sham with a particula...

  6. A Comparative Research on Grades 3- 9 Children's Intelligence Theory Intervention%3-9年级儿童能力观干预比较研究

    Institute of Scientific and Technical Information of China (English)

    李晓文; 彭琴芳

    2011-01-01

    intelligent", "diligent", "potential", or no feedback as a control condition. The changes of goal orientation were taken as effects of intervention. The effects of intervention on the participants of different grades were compared. The results of the experiment are as follows: Praise brought extensive promotions on the learning goal orientation in participants of Grade 3 and Grade 4, whatever positive feedback they got. The results of participants of Grade 5 displayed discriminating effects on praise was type, with boosted goal orientation of performance after "intelligent" praise compared with other three types of feedback. The "diligent" and "potential" praises obviously improved learning goal orientation from Grade 3 to Grade 6, but the promotion power weakened from Grade 7 to 9. Similar interaction between story types and grade levels on the intervention effects were also found, though the effect difference between the two types of story reading intervention was more notable than that of praise. The learning goal orientation improved more in participants from Grades 3 to 6 after reading the story that included concept of incremental intelligence compared with those from Grades 7 to 9. The performance goal orientation increased more after the participants from Grades 7 to 9 read the story containing the concept of entity intelligence. In a word, the results showed an interaction between the grade and intervention types on the changes of students' intelligence theory. It supported Dweck's viewpoint of temporarily changed intelligence by intervention. However, intervention effects varied among grades, which validated the current research assumption. As the author discovered in her previous research that the development of self awareness boosts in Grades 5, children could probably see their own abilities as relatively stable since then. Thus, it may be the reason why the intervention effect of the story emphasizing the incremental intelligence is weaker

  7. Vocabulary of CPH Theory and Modern Physics

    DEFF Research Database (Denmark)

    Javadi, Hossein; Forouzbakhsh, Farshid; Daei Kasmaei, Hamed

    2016-01-01

    Wherefore CPH theory was presented? There are various theories in physics, but nature is unique. This is not nature's problem that we have various theories; nature obeys simple and unique law. So, we should improve our understanding of physical phenomena and unify theories. There is a compare brief...... of CPH Theory (Creative Particles of Higgs Theory) and modern physics in this vocabulary....

  8. A COMPARATIVE STUDY ON THE PERCEIVED APPLICABILITY OF HONEY BEE MATING OPTIMIZATION ALGORITHM (HBMO AND PARTICLE SWARM OPTIMIZATION (PSO ALGORITHM BY APPLYING THREE FACTOR THEORY AMONG RESEARCHERS IN TAMIL NADU

    Directory of Open Access Journals (Sweden)

    K. Kalyani

    2015-04-01

    Full Text Available The perceived applicability of honey bee mating optimization HBMO and Particle Swarm Optimization PSO among the research scholars in Tamil Nadu are understudied. The purpose of the present study is to address this dearth in the literature in three ways: (i providing descriptive data related to the applicability of these algorithm in their area of study. (ii Applying Three Factor theory to assess the perceived range of applicability of the two said theories and to develop, a theoretically-based model that predicts the applicability and robustness of the algorithm in comparative basis grounded on the perceptual data collected from the research scholars from all over Tamil Nadu. (iii Attempting to compare the strength and form of correlation between the factors of influence and perceived applicability of the algorithms in the research process by the researchers. Self-report data were collected from Researchers in Tamil Nadu (n = 869, assessing the levels of individual personal belief factors in influencing the scholars perception of applicability of the algorithm for a range of issues, perception based on the results produced by the application of the algorithm. Perceptions formed in conformity with a group of researchers were analyzed through statistical tools. From the findings analysis, it is evident that perceptions of personal belief level and perception based on conformity with peer group perceptions have significant influences in predicting the applicability of the Algorithms. However, the study results suggest that empirical result is based in on the specified context and level of investigation on which it can produce similar or varied outcomes when the study is conducted to larger domain of subjects.

  9. HEAVY ION FUSION SCIENCE VIRTUAL NATIONAL LABORATORY2nd QUARTER 2010 MILESTONE REPORTDevelop the theory connecting pyrometer and streak camera spectrometer data to the material properties of beam heatedtargets and compare to the data

    Energy Technology Data Exchange (ETDEWEB)

    More, R.M.; Barnard, J. J.; Bieniosek, F.M.; Henestroza, E.; Lidia, S. M.; Ni, P. A.

    2010-04-01

    This milestone has been accomplished. We have extended the theory that connects pyrometer and streak spectrometer data to material temperature on several fronts and have compared theory to NDCX-I experiments. For the case of NDCX-I, the data suggests that as the metallic foils are heated they break into droplets (cf. HIFS VNL Milestone Report FY 2009 Q4). Evaporation of the metallic surface will occur, but optical emission should be directly observable from the solid or liquid surface of the foil or from droplets. However, the emissivity of hot material may be changed from the cold material and interference effects will alter the spectrum emitted from small droplets. These effects have been incorporated into a theory of emission from droplets. We have measured emission using streaked spectrometry and together with theory of emission from heated droplets have inferred the temperature of a gold foil heated by the NDCX-I experiment. The intensity measured by the spectrometer is proportional to the emissivity times the blackbody intensity at the temperature of the foil or droplets. Traditionally, a functional form for the emissivity as a function of wavelength (such as a quadratic) is assumed and the three unknown emissivity parameters (for the case of a quadratic) and the temperature are obtained by minimizing the deviations from the fit. In the case of the NDCX-I experiment, two minima were obtained: at 7200 K and 2400 K. The best fit was at 7200 K. However, when the actual measured emissivity of gold was used and when the theoretical corrections for droplet interference effects were made for emission from droplets having radii in the range 0.2 to 2.0 microns, the corrected emissivity was consistent with the 2400 K value, whereas the fit emissivity at 7200 K shows no similarity to the corrected emissivity curves. Further, an estimate of the temperature obtained from beam heating is consistent with the lower value. This exercise proved to be a warning to be skeptical

  10. The left and the democratic stability in Latin America: the ideology of the Bolivarian Revolution and its impact on the political processes in Venezuela and Latin America

    Directory of Open Access Journals (Sweden)

    José Enrique MOLINA V.

    2010-10-01

    Full Text Available One of the main areas of work in Comparative Politics and Political Theory has been the determination of the variables associated with the stability/instability of political systems in general, and democracy in particular. This paper focuses on one of these variables. One with newly acquired importance after the recent electoral successes by the left, but that nevertheless has not been in the spotlight of scholarly analysis: ideological polarization. Particularly, ideological polarization brought about by the attempt to pursue by the government a leftist political project. The main focus is on the ideological project pursued by the Venezuelan Bolivarian Government and its association with the political instability of 2002 and 2003. The paper considers this topic taken into account mainstream theoretical approaches on political stability, and the experience of previous Latin American leftist governments. The paper reaches the conclusion that in Latin America the attempt to implement a socialist program by a democratically elected government, if it is done without meaningful social and political negotiation, and with authoritarian overtones, is likely to lead to intense political instability and to the ultimate failure of the proposed social change.

  11. Towards a theory of spacetime theories

    CERN Document Server

    Schiemann, Gregor; Scholz, Erhard

    2017-01-01

    This contributed volume is the result of a July 2010 workshop at the University of Wuppertal Interdisciplinary Centre for Science and Technology Studies which brought together world-wide experts from physics, philosophy and history, in order to address a set of questions first posed in the 1950s: How do we compare spacetime theories? How do we judge, objectively, which is the “best” theory? Is there even a unique answer to this question? The goal of the workshop, and of this book, is to contribute to the development of a meta-theory of spacetime theories. Such a meta-theory would reveal insights about specific spacetime theories by distilling their essential similarities and differences, deliver a framework for a class of theories that could be helpful as a blueprint to build other meta-theories, and provide a higher level viewpoint for judging which theory most accurately describes nature. But rather than drawing a map in broad strokes, the focus is on particularly rich regions in the “space of spaceti...

  12. Vocabulary of CPH Theory and Modern Physics

    DEFF Research Database (Denmark)

    Javadi, Hossein; Forouzbakhsh, Farshid; Daei Kasmaei, Hamed

    2016-01-01

    Wherefore CPH theory was presented? There are various theories in physics, but nature is unique. This is not nature's problem that we have various theories; nature obeys simple and unique law. So, we should improve our understanding of physical phenomena and unify theories. There is a compare bri...... of CPH Theory (Creative Particles of Higgs Theory) and modern physics in this vocabulary.......Wherefore CPH theory was presented? There are various theories in physics, but nature is unique. This is not nature's problem that we have various theories; nature obeys simple and unique law. So, we should improve our understanding of physical phenomena and unify theories. There is a compare brief...

  13. Universidad y calidad en América Latina en perspectiva comparada: Interrogantes y desafíos Universidade e qualidade na América Latina em perspectiva comparada: interrogações e desafios University and quality in Latin America in comparative perspective: questions and challenges

    Directory of Open Access Journals (Sweden)

    Norberto Fernández Lamarra

    2012-11-01

    evolution. Next, the text analyzes the various theoretical and methodological conceptions about quality and its evaluation and accreditation. These processes are also considered from a comparative perspective, analyzing those developed in the United States, Canada, Europe and Latin America. Finally, the major Latin American trends in evaluation and higher education quality accreditation, its achievements, limitations and, particularly, its challenges are critically presented

  14. Post-War Central America

    Directory of Open Access Journals (Sweden)

    Dirk Kruijt

    2003-10-01

    Full Text Available – Terror in the Countryside. Campesino Responses to Political Violence in Guatemala, 1954-1985, by Rachel A. May. Athens, Ohio: Ohio University Center for International Studies/Research in International Studies/Latin America Series #35, 2001. – La guerrilla fue mi camino. Epitafio para César Montes, by Julio César Macías. Guatemala: Piedra Santa/Colección Afluentes de Modernidad, 1999. – Testigo de conciencia (Periodismo de Opinión Documentado, by Marco A. Mérida. Guatemala: ARCASAVI, 2000. – Centroamérica 2002. Un nuevo modelo de desarrollo regional, edited by Klaus Bodemer and Eduardo Gamarra. Caracas: Nueva Sociedad, 2002. – Who Governs? Guatemala Five years After the Peace Accords, by Rachel Sieder, Megan Thomas, George Vickers and Jack Spence. Cambridge, Mass.: Hemispheric Initiatives/Washington Office on Latin America (WOLA, January 2002. – Pasos hacia una nueva convivencia: Democracia y participación en Centroamérica, edited by Ricardo Córdova Macías, Günther Maihold and Sabina Kurtenbach. San Salvador: FUNDAUNGO, Instituto de Estudios Iberoamericanos de Hamburgo and Instituto Iberoamericano de Berlin, 2001. – Los desafíos de la democracia en Centroamérica, by René Poitevin and Alexander Sequén-Mónchez. Guatemala: FLACSO, 2002. – Más allá de las elecciones: Diez años después de los acuerdos de paz, edited by Hector Dada Hirezi. San Salvador: FLACSO, 2002. – Guatemala, un proyecto inconcluso: La multiculturalidad, un paso hacia la democracia, by Hugo Cayzac. Guatemala: FLACSO, 2001. – La violencia en el contexto del posconflicto, según la percepción de comunidades urbanas pobres de Guatemala, by Caroline Moser and Cathy McIlwaine. Washington/Bogotá: Banco Mundial-Región de Latinoamérica y el Caribe/Tercer Mundo Editores, 2001. – El lado oscuro de la eterna primavera. Violencia, criminalidad y delincuencia en la postguerra, by Manolo Vela, Alexander Sequén-Mónchez and Hugo Antonio Solares

  15. Rara and grammatical theory

    DEFF Research Database (Denmark)

    Rijkhoff, Jan

    2010-01-01

    This paper argues that grammatical theorizing and linguistic typologizing must go hand in hand and that rare typological features play a central role in the interaction of typology and theory. The paper is organized as follows. Section 2 discusses a sampling method that (compared to other sampling...... Functional (Discourse) Grammar and sections 4 and 5 are concerned with the crucial role of rara both in theory driven data collection and in data driven theory building....

  16. DETERMINANTS OF THE SUCCESS OF GLOBAL AND LOCAL BRANDS IN LATIN AMERICA

    Directory of Open Access Journals (Sweden)

    Pablo Farías

    2015-08-01

    Full Text Available The purpose of this paper is to address the issue of the implementation of global and local brands in Latin America by drawing on contingency theory to develop and test hypotheses relating to how product category characteristics affect the success of global and local brands in the region. Hypotheses are tested using data obtained from top brands rankings reported in five Latin American markets (Argentina, Brazil, the Caribbean and Central America, Chile and Mexico. The study design considers estimating a logistic regression on a binomial dependent variable measuring whether 475 top brands are global or local brands, with product category characteristics as independent variables. Results reveal that product categories related to subscriptions, local tastes, high-tech, and global citizenship do have an impact on the success of global and local brands in Latin America.

  17. Manual Training Schools in America.

    Science.gov (United States)

    Schenck, John P.

    John Runkle, president of the Massachusetts Institute of Technology (MIT), viewed the Moscow Imperial Technical School exhibit at the Philadelphia Centennial Exposition of 1876 and saw the Russian method of manual training as the answer to the dilemma of combining theory and practice in engineering instruction. On August 17, 1876, shops in which…

  18. From upstream to downstream: Megatrends and latest developments in Latin America`s hydrocarbons sector

    Energy Technology Data Exchange (ETDEWEB)

    Wu, Kang; Pezeshki, S.; McMahon, J.

    1995-08-01

    In recent years, Latin America`s hydrocarbons sector has been characterized by reorganization, revitalization, regional cooperation, environmental awakening, and steady expansion. The pattern of these changes, which appear to be the megatrends of the region`s hydrocarbons sector development, will continue during the rest of the 1990s. To further study the current situation and future prospects of Latin America`s hydrocarbons sector, we critically summarize in this short article the key issues in the region`s oil and gas development. These megatrends in Latin America`s hydrocarbons sector development will impact not only the future energy demand and supply in the region, but also global oil flows in the North American market and across the Pacific Ocean. Each country is individually discussed; pipelines to be constructed are discussed also.

  19. Latin America - the next bonanza

    Energy Technology Data Exchange (ETDEWEB)

    Stein, Hank

    1996-03-01

    The potential for electric power investment in Latin America is analysed. A restructured and privatised power sector, together with political and fiscal stability, make Chile attractive to foreign investors. In 1992, Argentina began to follow Chile`s lead and sold off most of its national electric utilities and has subsequently extended this privatisation. Argentina has a large supply of natural gas which adds to its attraction for investment. Large reserves of natural gas are also a feature of Bolivia where government measures in recent years offer incentives to foreign investors. Brazil`s energy policies have been described as ``problematic`` and privatisation plans were upset by political issues. Continuing domestic and political problems in Colombia make foreign investors wary, though liberalised investment policies have resulted in two deals with US companies. There are few investment opportunities in Paraguay which has excess generating capacity. Privatisation has begun in Peru and there has been some investment from outside despite high costs and the difficulties created by terrorism. Plans for privatisation in Uruguay were voted out but the national utility may purchase power from private generators. Self-generators are an important part of Venezuela`s electric capacity but hydroplants for state utilities are being strongly supported. Economic and labour problems stand in the way of attracting foreign investment at present in Ecuador. (UK)

  20. Science and Passion in America

    Directory of Open Access Journals (Sweden)

    Sagredo Baeza, Rafael

    2012-12-01

    Full Text Available In addition to increasing our knowledge and understanding of the naturalists who explored America at various times, particularly in the 18th and 19th centuries, we seek to discuss the personal, intimate, private, and sentimental nature of individuals who are usually described as well-bred, parsimonious, unfeeling, objective, rigorous, and methodical. For the same reason, perhaps, they are assumed to have stayed aloof from any form of sentimental or passionate relationships in the course of their excursions, despite the fact that the latter often lasted not for months but for years, and that in some instances were not conducted overland but involved prolonged voyages on the high seas.

    Además de avanzar en el conocimiento y comprensión de los naturalistas que exploraron América en algún momento, particularmente en los siglos XVIII y XIX, nos interesa relevar la dimensión personal, íntima, privada, sentimental, de sujetos que corrientemente son presentados como hombres comedidos, parcos, fríos, objetivos, rigurosos y metódicos y, tal vez por eso, se supone, ajenos a cualquier tipo de relación sentimental o pasional durante sus excursiones. Esto, a pesar de que muchas de ellas se prolongaron no ya por meses, sino que por años y que algunas de ellas no fueron itinerarios terrestres, sino que esencialmente marítimos, con largas temporadas en alta mar.

  1. The Norse discovery of America.

    Science.gov (United States)

    Langmoen, Iver A

    2005-12-01

    In the late 8th century, the stage for Viking expansion was set by commercial expansion in northwest Europe, the pressure of an increasing population in limited territorial reserves, and the development of the Viking ships. The Norsemen traveled extensively over the oceans, south to the Holy Land, and north to the White Sea and settled over a wide area from Sicily to Greenland. Historical sources, including the reports by Adam of Bremen and the Icelandic Sagas, describe several expeditions from Greenland to Vinland (somewhere along the east coast of North America) in approximately AD 1000 and later. Historians have arrived at highly different conclusions with respect to the location of Vinland (from Labrador to Georgia), but, in 1960, the Norwegian explorer Helge Ingstad localized ancient house sites on L'Ans aux Meadows, a small fishing village on the Northern beaches of Newfoundland. From 1961 to 1969, Ingstad and his wife, Anne Stine (an archaeologist), led several archaeological expeditions that revealed Viking turf houses with room for approximately 100 people. They also excavated a smithy, outdoor cooking pits, boathouses, a bathhouse, and enclosures for cattle, in addition to several Viking artifacts. The finds were C dated to AD 990 +/- 30. The present report reviews historical and archaeological evidence indicating the sites to which the Vikings traveled and attempted to settle in the new world.

  2. Role of electronic correlation in high-low temperature phase transition of hexagonal nickel sulfide: a comparative density functional theory study with and without correction for on-site Coulomb interaction.

    Science.gov (United States)

    Zhang, Wei-Bing; Li, Jie; Tang, Bi-Yu

    2013-06-28

    The structural, electronic, magnetic, and elastic properties of hexagonal nickel sulfide (NiS) have been investigated comparatively by Density Functional theory (DFT) and DFT plus correction for on-site Coulomb interaction (DFT+U), in which two different exchange correlation functionals local density approximations (LDA) and general gradient approximations (GGA) in the form of Perdew-Burke-Ernzerhof (PBE) are used. Our results indicate LDA and PBE methods predict hexagonal NiS to be a paramagnetic metal whereas LDA(PBE)+U calculations with reasonable on-site Coulomb interaction energy give the antiferromagnetic insulating state of low temperature hexagonal NiS successfully. Meanwhile, compared with LDA(PBE) results, LDA(PBE)+U methods give larger lattice parameters, crystal volume, and shear constant c44, consistent with the experimental picture during high-low temperature phase transition of hexagonal NiS, in which an increase of the shear constant c44 and lattice parameters were found in the low-temperature antiferromagnetic phase. The present DFT and DFT+U calculations provide a reasonable description for the properties of high temperature and low temperature hexagonal NiS respectively, which indicates that electronic correlation is responsible for this high-low temperature phase transition.

  3. Building America Industrialized Housing Partnership (BAIHP)

    Energy Technology Data Exchange (ETDEWEB)

    McIlvaine, Janet; Chandra, Subrato; Barkaszi, Stephen; Beal, David; Chasar, David; Colon, Carlos; Fonorow, Ken; Gordon, Andrew; Hoak, David; Hutchinson, Stephanie; Lubliner, Mike; Martin, Eric; McCluney, Ross; McGinley, Mark; McSorley, Mike; Moyer, Neil; Mullens, Mike; Parker, Danny; Sherwin, John; Vieira, Rob; Wichers, Susan

    2006-06-30

    This final report summarizes the work conducted by the Building America Industrialized Housing Partnership (www.baihp.org) for the period 9/1/99-6/30/06. BAIHP is led by the Florida Solar Energy Center of the University of Central Florida and focuses on factory built housing. In partnership with over 50 factory and site builders, work was performed in two main areas--research and technical assistance. In the research area--through site visits in over 75 problem homes, we discovered the prime causes of moisture problems in some manufactured homes and our industry partners adopted our solutions to nearly eliminate this vexing problem. Through testing conducted in over two dozen housing factories of six factory builders we documented the value of leak free duct design and construction which was embraced by our industry partners and implemented in all the thousands of homes they built. Through laboratory test facilities and measurements in real homes we documented the merits of 'cool roof' technologies and developed an innovative night sky radiative cooling concept currently being tested. We patented an energy efficient condenser fan design, documented energy efficient home retrofit strategies after hurricane damage, developed improved specifications for federal procurement for future temporary housing, compared the Building America benchmark to HERS Index and IECC 2006, developed a toolkit for improving the accuracy and speed of benchmark calculations, monitored the field performance of over a dozen prototype homes and initiated research on the effectiveness of occupancy feedback in reducing household energy use. In the technical assistance area we provided systems engineering analysis, conducted training, testing and commissioning that have resulted in over 128,000 factory built and over 5,000 site built homes which are saving their owners over $17,000,000 annually in energy bills. These include homes built by Palm Harbor Homes, Fleetwood, Southern Energy

  4. Bathymetry of North America - Direct Download

    Data.gov (United States)

    U.S. Geological Survey, Department of the Interior — The Bathymetry of North America map layer shows depth ranges using colors. The image was derived from the National Geophysical Data Center?s ETOPO2 elevation data,...

  5. Mineral Operations of Latin America and Canada

    Data.gov (United States)

    U.S. Geological Survey, Department of the Interior — This data set consists of records for over 900 mineral facilities in Latin America and Canada. The mineral facilities include mines, plants, smelters, or refineries...

  6. Latin America: population and internal unrest.

    Science.gov (United States)

    Wiarda, J H; Siqueira Wiarda, I

    1985-09-01

    This discussion of population and internal unrest in Latin America covers the following: pressures on land and agriculture; economic frustrations; the youth and radicalism; rising social tensions; and political instability. At current growth rates, Latin America's population is projected to increases between 1981 2001 by 225 million people. This staggering population growth is likely to have serious political, economic, social, strategic, and other implications. The strong opposition to family planning which came principally from nationlists, the military, and the church during the 1960s has changed to general support for voluntary family planning programs in much of Latin America. Too rapid population growth now is viewed widely as aggravating the problems of development and putting severe strains on services and facilities. The wish to limit family size is particularly strong among women. Most of Latin America's untapped land is unusable, either so steeply mountainous, densely tropical, or barren of topsoil that it cannot support life at even the most meager level of subsistence. Food production in most of Latin America has not kept pace with population growth. Since most new agricultural production is oriented toward exports rather than home consumption, conditions for most rural populations are worsening. Economic dilemmas facing Latin America include widespread poverty, the world's highest per capita debt, unemployment and underemployment that may reach between 40-50% of the workforce, negative economic growth rates over the past 5 years, immense income inequalities, declining terms of trade, extensive capital flight, little new investment or foreign assistance, increased protectionism on the part of those countriews with whom Latin America must trade, rising prices for the goods Latin America must import, and (in some countries) devastation of the economic infrastrucutre by guerrilla forces. The unprecedent flow from the countryside has made Latin America the

  7. 5d Field Theories and M Theory

    OpenAIRE

    Kol, Barak

    1997-01-01

    5-brane configurations describing 5d field theories are promoted to an M theory description a la Witten in terms of polynomials in two complex variables. The coefficients of the polynomials are the Coulomb branch. This picture resolves apparent singularities at vertices and reveals exponentially small corrections. These corrections ask to be compared to world line instanton corrections. From a different perspective this procedure may be used to define a diagrammatic representation of polynomi...

  8. Spin Density Distribution in Open-Shell Transition Metal Systems: A Comparative Post-Hartree-Fock, Density Functional Theory, and Quantum Monte Carlo Study of the CuCl2 Molecule.

    Science.gov (United States)

    Caffarel, Michel; Giner, Emmanuel; Scemama, Anthony; Ramírez-Solís, Alejandro

    2014-12-09

    We present a comparative study of the spatial distribution of the spin density of the ground state of CuCl2 using Density Functional Theory (DFT), quantum Monte Carlo (QMC), and post-Hartree-Fock wave function theory (WFT). A number of studies have shown that an accurate description of the electronic structure of the lowest-lying states of this molecule is particularly challenging due to the interplay between the strong dynamical correlation effects in the 3d shell and the delocalization of the 3d hole over the chlorine atoms. More generally, this problem is representative of the difficulties encountered when studying open-shell metal-containing molecular systems. Here, it is shown that qualitatively different results for the spin density distribution are obtained from the various quantum-mechanical approaches. At the DFT level, the spin density distribution is found to be very dependent on the functional employed. At the QMC level, Fixed-Node Diffusion Monte Carlo (FN-DMC) results are strongly dependent on the nodal structure of the trial wave function. Regarding wave function methods, most approaches not including a very high amount of dynamic correlation effects lead to a much too high localization of the spin density on the copper atom, in sharp contrast with DFT. To shed some light on these conflicting results Full CI-type (FCI) calculations using the 6-31G basis set and based on a selection process of the most important determinants, the so-called CIPSI approach (Configuration Interaction with Perturbative Selection done Iteratively) are performed. Quite remarkably, it is found that for this 63-electron molecule and a full CI space including about 10(18) determinants, the FCI limit can almost be reached. Putting all results together, a natural and coherent picture for the spin distribution is proposed.

  9. 基于比较优势基准的新疆工业主导产业选择%Choice of Leading Industries in Xinjiang Based on the Theory of Comparative Advantage

    Institute of Scientific and Technical Information of China (English)

    李豫新; 赵俊所

    2012-01-01

    The selection and breeding of leading industries is the key to promoting regional economic development. Guided by the theory of comparative advantage, through the construction of regional leading industry selection evaluation index system, using industry comparative comprehensive scale index, industry comparative comprehensive efficiency index and industry comparative comprehensive index, this paper conducted an empirical analysis of Xinjiang industrial leading sectors. The results show that, the oil and gas industry, electricity, gas and water production and supply, petroleum processing, chemical fiber manufacturing industry, both in size and in the economic aspect, have their stronger comparative advantages, showing their stronger comprehensive comparative advantages, so they can be selected as Xinjiang's industrial leading sectors. At the same time, the government should put forward a series of industrial policies to encourage and support the development of these leading sectors, and spend plenty of time and money in employing and assimilating techniques which are suitable for those leading sectors so as to promote the industrial competing abilities.%区域经济发展的关键在于主导产业的选择和培育。以比较优势理论为指导,通过构建区域主导产业选择的评价指标体系,采用产业比较综合规模指数、产业比较综合效益指数和产业比较综合指数,对新疆工业主导产业进行实证分析。研究结果表明,石油和天然气开采业,电力、热力的生产和供应业,石油加工、化学纤维制造业等产业,无论在规模还是在经济效益方面都具有较强的比较优势,显示出较强的综合比较优势,因此可将它们作为新疆的工业主导产业。同时政府应出台一系列政策鼓励和支持这些产业的发展,加大科技引进力度,增强自身消化吸收能力,提升产业竞争力。

  10. Building America Research-to-Market Plan

    Energy Technology Data Exchange (ETDEWEB)

    Werling, Eric [Office of Energy Efficiency and Renewable Energy (EERE), Washington, DC (United States)

    2015-11-01

    This report presents the Building America Research-to-Market Plan (Plan), including the integrated Building America Technology-to-Market Roadmaps (Roadmaps) that will guide Building America’s research, development, and deployment (RD&D) activities over the coming years. The Plan and Roadmaps will be updated as necessary to adapt to research findings and evolving stakeholder needs, and they will reflect input from DOE and stakeholders.

  11. The coastal marine Tardigrada of the Americas.

    Science.gov (United States)

    Miller, William R; Perry, Emma S

    2016-06-20

    The Western Hemisphere or the New World, also known as the Americas (North, Central and South America, associated islands and included seas) have historically been divided into two Realms, the Nearctic and Neotropical based on terrestrial biogeography. The coasts of these two terrestrial realms are bordered by six marine realms, 14 marine provinces and 67 marine ecoregions. From current literature, a comprehensive list of the marine tardigrade fauna from the Americas is presented. Data on marine tardigrades were obtained from 385 published Records of the Occurrence (RoO) of a species, their location, tidal zone, and the substrates from which they were reported. Authors' identifications were accepted at face value unless subsequently amended. Thirty genera and 82 species or subspecies are reported from the Americas; 49 species are documented from margins of the terrestrial Nearctic realm (North America) and 48 from terrestrial Neotropical realm (South America) with only 17 species occurring in both. We define cosmopolitan distribution for marine tardigrades as occurring in or on the margins of five of the seven oceans, only two species of marine tardigrade meets this standard. From the Americas 39 species have been described as new to science, 32 species appear restricted to the hemisphere. Taxa were assigned to marine ecoregions based on adjacent geopolitical units (country, states, provinces, etc.) described in published records. Although tardigrades have been reported from all six marine realms, they are only known from 21 of the 67 ecoregions. Most marine tardigrade sampling in the Americas has focused on near shore substrate (sand, mud, barnacles); for some species no substrates have been reported. The west coasts of both continents have little or no data about tardigrade presence.

  12. MicroEnterprise Americas: Premiere Issue, 2001

    OpenAIRE

    Inter-American Development Bank (IDB)

    2001-01-01

    This premiere issue of MicroEnterprise Americas concentrates on the microfinance industry, a thriving segment of the Latin American financial sector that has rapidly expanded in the past five years. This issue explores looks at how market leaders have developed technologies, attracted investments, and developed tools for mitigating risk in the difficult financial climate of the past two years. MicroEnterprise Americas is published by the Inter-American Forum on Microenterprise, an annual even...

  13. America and China in a New World

    Institute of Scientific and Technical Information of China (English)

    Robert E.Goodman

    2007-01-01

    <正>America has prided itself for the past 50 years on being a leader in all things:politics,human rights,and economics,However,in this new century,there are new paradigms that are arising that are forcing a change of attitude and views on how America views the rest of the world_and, especially,China.That is the subject of this discourse today.

  14. Regional Strategic Appraisal of Central America

    Science.gov (United States)

    2007-11-02

    originally consisted of five states that gained their independence from Spain in 1821 and formed a single country, called Central America Federation ...and in each case a civilian president has voluntarily yielded power to another elected civilian. Electoral processes have nearly acquired a “life of...Observatorio de Seguridad y Defensa en America Latina (OSAL), Instituto Universitario Ortega y Gasset. 38 Ibid. 26 BIBLIOGRAPHY Agosin, Manuel R., David

  15. Wind Powering America Initiative (Fact Sheet)

    Energy Technology Data Exchange (ETDEWEB)

    2011-01-01

    The U.S. Department of Energy's Wind Powering America initiative engages in technology market acceptance, barrier reduction, and technology deployment support activities. This fact sheet outlines ways in which the Wind Powering America team works to reduce barriers to appropriate wind energy deployment, primarily by focusing on six program areas: workforce development, communications and outreach, stakeholder analysis and resource assessment, wind technology technical support, wind power for Native Americans, and federal sector support and collaboration.

  16. Separation-individuation theory and attachment theory.

    Science.gov (United States)

    Blum, Harold P

    2004-01-01

    Separation-individuation and attachment theories are compared and assessed in the context of psychoanalytic developmental theory and their application to clinical work. As introduced by Margaret Mahler and John Bowlby, respectively, both theories were initially regarded as diverging from traditional views. Separation-individuation theory, though it has had to be corrected in important respects, and attachment theory, despite certain limitations, have nonetheless enriched psychoanalytic thought. Without attachment an infant would die, and with severely insecure attachment is at greater risk for serious disorders. Development depends on continued attachment to a responsive and responsible caregiver. Continued attachment to the primary object was regarded by Mahler as as intrinsic to the process of separation-individuation. Attachment theory does not account for the essential development of separateness, and separation-individuation is important for the promotion of autonomy, independence, and identity. Salient historical and theoretical issues are addressed, including the renewed interest in attachment theory and the related decline of interest in separation-individuation theory.

  17. Race, color, and income inequality across the Americas

    Directory of Open Access Journals (Sweden)

    Stanley Bailey

    2014-09-01

    Full Text Available Background: Racial inequality in the U.S. is typically described in terms of stark categorical difference, as compared to the more gradational stratification based on skin color often said to prevail in parts of Latin America. However, nationally representative data with both types of measures have not been available to explicitly test this contrast. Objective: We use novel, recently released data from the U.S. and 18 Latin American countries to describe household income inequality across the region by perceived skin color and racial self-identification, and examine which measure better captures racial disparities in each national context. Results: We document color and racial hierarchies across the Americas, revealing some unexpected patterns. White advantage and indigenous disadvantage are fairly consistent features, whereas blacks at times have higher mean incomes than other racial populations. Income inequality can best be understood in some countries using racial categories alone, in others using skin color; in a few countries, including the U.S., a combination of skin color and self-identified race best explains income variation. Conclusions: These results complicate theoretical debates about U.S. racial exceptionalism and methodological debates about how best to measure race. Rather than supporting one measure over another, our cross-national analysis underscores race‟s multidimensionality. The variation in patterns of inequality also defies common comparisons between the U.S. on the one hand and a singular Latin America on the other.

  18. A magmatic probe of dynamic topography beneath western North America

    Science.gov (United States)

    Klöcking, M.; White, N. J.; Maclennan, J.

    2014-12-01

    A region centered on the Yellowstone hotspot and encompassing the Colorado Plateau sits at an elevation 2 km higher than the cratonic North America. This difference broadly coincides with tomographically observed variations in lithospheric thickness: ~120 km beneath western North America, ~240 km beneath the craton. Thermochronology of the Grand Canyon area, sedimentary flux to the Gulf of Mexico, and river profile inversion all suggest that regional uplift occurred in at least two separate stages. High resolution seismic tomographic models, using USArray data, have identified a ring of low velocity material beneath the edges of the Colorado Plateau. Magmatism coincides with these low velocity zones and shows distinct phases: an overall increase in volume around 40 Ma and a change from lithospheric to asthenospheric signatures around 5 Ma. Volcanism is also observed to migrate north-east with time. Here, we attempt to integrate these different observations with lithospheric thickness. A dynamic topography model of progressive lithospheric erosion over a hot mantle plume might account for uplift as well as the temporal and spatial distribution of magmatism across western North America. Thinning of the lithosphere around the edges of the Colorado Plateau in combination with the hotter mantle potential temperature of a plume could create isostatic and dynamic uplift as well as allowing for melt production. To test this model, we have analysed around 100 samples from volcanic centers across western North America by ICP-MS for rare earth elements (REE). Most of the samples are younger than 5 Ma, and all of them have previously been analysed by XRF. Using trace element ratios such as La/Yb and Nb/Y we assess depth of melting and melt fraction, respectively. In addition, we use REE inversion modelling to estimate melt fractions as a function of depth and temperature of melting. The results are compared to existing constraints on lithospheric thickness and mantle potential

  19. Aquatic risk assessment of pesticides in Latin America.

    Science.gov (United States)

    Carriquiriborde, Pedro; Mirabella, Paula; Waichman, Andrea; Solomon, Keith; Van den Brink, Paul J; Maund, Steve

    2014-10-01

    Latin America is anticipated to be a major growth market for agriculture and production is increasing with use of technologies such as pesticides. Reports of contamination of aquatic ecosystems by pesticides in Latin America have raised concerns about potential for adverse ecological effects. In the registration process of pesticides, all countries require significant data packages on aquatic toxicology and environmental fate. However, there are usually no specific requirements to conduct an aquatic risk assessment. To address this issue, the Society of Environmental Toxicology and Chemistry organized a workshop that brought together scientists from academia, government, and industry to review and elaborate on aquatic risk assessment frameworks that can be implemented into regulation of pesticides in Latin America. The workshop concluded that the international framework for risk assessments (protection goals, effects, and exposure assessments, risk characterization, and risk mitigation) is broadly applicable in Latin America but needs further refinement for the use in the region. Some of the challenges associated with these refinements are discussed in the article. It was recognized that there is potential for data sharing both within and outside of the region where conditions are similar. However, there is a need for research to compare local species and environmental conditions to those in other jurisdictions to be able to evaluate the applicability of data used in other countries. Development should also focus on human resources as there is a need to build local capacity and capability, and scientific collaboration and exchange between stakeholders in industry, government, and academia is also important. The meeting also emphasized that, although establishing a regionally relevant risk assessment framework is important, this also needs to be accompanied by enforcement of developed regulations and good management practices to help protect aquatic habitats

  20. Projected Future Climate Analogues and Climate "Velocities" in North America

    Science.gov (United States)

    Shafer, S. L.; Bartlein, P. J.

    2014-12-01

    Future climate changes may have significant effects on many North American ecosystems. One way of assessing the potential impacts of future climate change is to use future climate analogues of present climate to evaluate the spatial extent and rates of future climate change. We used a set of Coupled Model Intercomparison Project phase 5 (CMIP5) coupled atmosphere-ocean general circulation model (AOGCM) future climate simulations (2006-2100) produced under representative concentration pathway scenario RCP8.5. We regridded these data to a 10-km equal-area grid of North America. Modern climate data (1961-1990 30-year mean) were interpolated to the same 10-km grid. The projected future climate data were analyzed using 10-year mean values of monthly and seasonal temperature and precipitation and a set of derived annual bioclimatic variables (e.g., growing degree days) considered to be ecologically significant. Potential future climate analogues were calculated for each grid cell using Euclidean distances to identify similar climates occurring elsewhere in North America. We identify regions that are projected to retain climates similar to present in the future (e.g., parts of the southeastern United States) and regions where present climates are projected to become less common or to disappear in the future (e.g., high elevation sites in western North America). We also calculate the rates of change in locations of similar climates (i.e., climate analogue velocities) and compare our results with simulated paleoclimate velocities over the past 22 kyr (from TraCE-21ka transient climate simulations for 22 ka-present). We discuss the implications of these results for conservation and natural resource management in North America. We also describe a web application being developed to allow researchers, decision makers, and members of the public, to visualize, explore, and use the climate analogue data.

  1. [Immunotherapy in Latin America. From the past to the future].

    Science.gov (United States)

    Cagnani, Carlos E Baena; Lockey, Richard F; Passalacqua, Giovanni; Canonica, G Walter

    2008-01-01

    In Latin America, allergic diseases have a very high prevalence, comparable to that of many other countries of the world, and that prevalence is constantly increasing. Within the region, the number of allergy specialists is quite high, although allergy is not recognized as a full specialty in all countries. Specific immunotherapy is the only available allergen-oriented immunomodulator, capable of improving symptoms and modifying the natural course of the disease, and therefore it represents a powerful therapeutic tool for specialists. During the last 20 years, the practice of immunotherapy in Latin America has much improved, especially because of the intensive educational effort, the widespread divulgation of the international guidelines and the adoption of the paradigm of the evidence-based medicine. In this regard, indications, contraindications, and limits of immunotherapy, are currently well acknowledged. In Latin America, immunotherapy is properly prescribed for inhalant allergens and hymenoptera venom by allergy specialists, although some non-evidence based forms of immunotherapy (e.g. bacterial extracts, treatment of atopic dermatitis) are still occasionally practiced. Sublingual immunotherapy is now accepted as a viable alternative to the traditional subcutaneous administration, and it begins to be proposed and studied also in some Latin American countries. Some debate remains on the use of immunotherapy for one or few versus multiple allergens, and also the availability of standardized extracts is not uniform. Finally, this therapeutic modality is not always given for free to low income patients such is the case in some countries and the different modalities of reimbursement among countries often represent a limit to the use of this treatment. Much has been done in improving the use of immunotherapy in Latin America. The main challenges and objectives for the near future are greater diffusion of the evidence-based medicine, a better standardization of

  2. Molecular typing of canine distemper virus strains reveals the presence of a new genetic variant in South America.

    Science.gov (United States)

    Sarute, Nicolás; Pérez, Ruben; Aldaz, Jaime; Alfieri, Amauri A; Alfieri, Alice F; Name, Daniela; Llanes, Jessika; Hernández, Martín; Francia, Lourdes; Panzera, Yanina

    2014-06-01

    Canine distemper virus (CDV, Paramyxoviridae, Morbillivirus) is the causative agent of a severe infectious disease affecting terrestrial and marine carnivores worldwide. Phylogenetic relationships and the genetic variability of the hemagglutinin (H) protein and the fusion protein signal-peptide (Fsp) allow for the classification of field strains into genetic lineages. Currently, there are nine CDV lineages worldwide, two of them co-circulating in South America. Using the Fsp-coding region, we analyzed the genetic variability of strains from Uruguay, Brazil, and Ecuador, and compared them with those described previously in South America and other geographical areas. The results revealed that the Brazilian and Uruguayan strains belong to the already described South America lineage (EU1/SA1), whereas the Ecuadorian strains cluster in a new clade, here named South America 3, which may represent the third CDV lineage described in South America.

  3. Critical Race Theories, Colorism, and the Decade's Research on Families of Color

    Science.gov (United States)

    Burton, Linda M.; Bonilla-Silva, Eduardo; Ray, Victor; Buckelew, Rose; Freeman, Elizabeth Hordge

    2010-01-01

    In the millennium's inaugural decade, 2 interrelated trends influenced research on America's families of color: the need for new knowledge about America's growing ethnic/racial minority and immigrant populations and conceptual advances in critical race theories and perspectives on colorism. Three substantive areas reflecting researchers' interests…

  4. Healthy Municipios in Latin America.

    Science.gov (United States)

    Restrepo, H E; Llanos, G; Contreras, A; Rocabado, F; Gross, S; Suárez, J; González, J

    1995-09-01

    This article describes the Healthy Municipios movement in Latin America and gives examples of some PAHO projects that could become demonstration projects. The Healthy Municipios movement was established in the early 1990s. The movement aims to promote healthy municipalities according to objectives set forth in the 1987 Ottawa Charter on Health Promotion, the 1992 Declaration of Bogota, and the 1993 Caribbean Health Promotion Charter. The movement is a joint effort of government, the health sector, and the community in promoting health locally. Key features of the movement are its creativity, variety, political strength, and adaptation to local conditions. Technical cooperation serves the purpose of facilitating information exchange and promotes the use of modern techniques of analysis and scientific and technical information. All projects shared the following common features: initiation by the local community with strong political commitment, intersectoral organizational structure, widespread community mobilization and participation, problem solving activities, and a recognizable leader. Pioneering projects include the Comprehensive Project for Cienfuegos, Cuba; the Health Manizales, Colombia; the Network in Mexico; Baruta and El Hatillo, Venezuela; Valdivia, Chile; and San Carlos Canton, Costa Rica. It is concluded that these projects and most others aim to assure equity. These efforts are important for placing health on the political agenda and implementing healthy policies. The Valdivia project, for example, serves a population of about 120,000 in the urban city of Valdivia, the semi-urban area, and rural areas. The project was officially sanctioned by the President of Chile on World Health Day in 1993. Progress was reported in mass communication and school-based programs. Attention was directed also to prevention of risk factors for noncommunicable diseases and to the problem of traffic accidents.

  5. Hadron Therapy in Latin America

    Science.gov (United States)

    Kreiner, A. J.; Bergueiro, J.; Burlon, A. A.; Di Paolo, H.; Castell, W.; Thatar Vento, V.; Levinas, P.; Cartelli, D.; Kesque, J. M.; Valda, A. A.; Ilardo, J. C.; Baldo, M.; Erhardt, J.; Debray, M. E.; Somacal, H. R.; Minsky, D. M.; Estrada, L.; Hazarabedian, A.; Johann, F.; Suarez Sandin, J. C.; Igarzabal, M.; Huck, H.; Repetto, M.; Obligado, M.; Lell, J.; Padulo, J.; Herrera, M.; Gonzalez, S. R.; Capoulat, M. E.; Davidson, J.; Davidson, M.

    2010-08-01

    The use of proton and heavy ion beams for radiotherapy is a well established cancer treatment modality in the first world, which is becoming increasingly widespread, due to its clear advantages over conventional photon-based treatments. This strategy is suitable when the tumor is spatially well localized. Also the use of neutrons has tradition. Here Boron Neutron Capture Therapy (BNCT) stands out, though on a much smaller scale, being a promising alternative for tumors which are diffuse and infiltrating. On this sector, so far only nuclear reactors have been used as neutron sources. In this paper we briefly describe the situation in Latin America and in particular we discuss the present status of an ongoing project to develop a folded Tandem-ElectroStatic-Quadrupole (TESQ) accelerator for Accelerator-Based (AB)-Boron Neutron Capture Therapy (BNCT) at the Atomic Energy Commission of Argentina. The project goal is a machine capable of delivering 30 mA of 2.4 MeV protons to be used in conjunction with a neutron production target based on the 7Li(p,n)7Be reaction. These are the specifications needed to produce sufficiently intense and clean epithermal neutron beams to perform BNCT for deep-seated tumors in less than an hour. The machine being currently designed and constructed is a folded TESQ with a terminal at 0.6 MV as a smaller scale prototype. Since the concept is modular the same structure will be used for the 1.2 MV final accelerator.

  6. The evolutionary history of Plasmodium vivax as inferred from mitochondrial genomes: parasite genetic diversity in the Americas.

    Science.gov (United States)

    Taylor, Jesse E; Pacheco, M Andreína; Bacon, David J; Beg, Mohammad A; Machado, Ricardo Luiz; Fairhurst, Rick M; Herrera, Socrates; Kim, Jung-Yeon; Menard, Didier; Póvoa, Marinete Marins; Villegas, Leopoldo; Mulyanto; Snounou, Georges; Cui, Liwang; Zeyrek, Fadile Yildiz; Escalante, Ananias A

    2013-09-01

    Plasmodium vivax is the most prevalent human malaria parasite in the Americas. Previous studies have contrasted the genetic diversity of parasite populations in the Americas with those in Asia and Oceania, concluding that New World populations exhibit low genetic diversity consistent with a recent introduction. Here we used an expanded sample of complete mitochondrial genome sequences to investigate the diversity of P. vivax in the Americas as well as in other continental populations. We show that the diversity of P. vivax in the Americas is comparable to that in Asia and Oceania, and we identify several divergent clades circulating in South America that may have resulted from independent introductions. In particular, we show that several haplotypes sampled in Venezuela and northeastern Brazil belong to a clade that diverged from the other P. vivax lineages at least 30,000 years ago, albeit not necessarily in the Americas. We propose that, unlike in Asia where human migration increases local genetic diversity, the combined effects of the geographical structure and the low incidence of vivax malaria in the Americas has resulted in patterns of low local but high regional genetic diversity. This could explain previous views that P. vivax in the Americas has low genetic diversity because these were based on studies carried out in limited areas. Further elucidation of the complex geographical pattern of P. vivax variation will be important both for diversity assessments of genes encoding candidate vaccine antigens and in the formulation of control and surveillance measures aimed at malaria elimination.

  7. Ezra Pound's Comparative Poetics

    OpenAIRE

    2001-01-01

    In his paper, "Ezra Pound's Comparative Poetics," Naikan Tao concentrates on Pound's theories regarding comparison and examines the significance of his comparative studies to the formulation of his poetics, an aspect that has not been sufficiently investigated. On the basis of Pound's work, Tao observes that the conception of comparison Pound shaped through his comparative studies is the internal principle that governs the presentation of details and particulars, the method Pound advocated as...

  8. Towards Comparative Leadership

    DEFF Research Database (Denmark)

    Jensen, Merete Storgaard

    2015-01-01

    Globalization is the imitation and adaptation of knowledgesolutions or innovations, as they are diffused from one country to another” (Peter Jarvis 2007) Conducting comparative, educational research of school leadership that effects student achievement in an international perspective...... is of scientific value in qualifying the international and national knowledgebase on effective school leadership. In a methodological perspective comparative analysis in an international setting creates specifically a scientific demand of comparability and a theory based leadership - framework to guide...

  9. Towards a New Developmental State: Challenges for Latin America

    Directory of Open Access Journals (Sweden)

    Cristina Zurbriggen

    2016-01-01

    Full Text Available The political map of Latin America experienced some significant changes during the first decade of the 21st century. After a long period of political and social hegemony of right-wing coalitions, progressive parties assumed office in many countries. Their programs criticised the neoliberal model and underlined the role of the State in the development process. In that context, the 2008 world economic crisis strengthened the debate on the role of the State, particularly in what regards to its rapport with elites and foreign capital, as well as its capacity to lead a development strategy towards more prosperous and just societies. This article revisits two theoretical paradigms (the Neoliberal State and the Developmental State in the light of new approaches from different disciplinary grounds (Political Science, Economic History, Political Economy of Development. We argue the greatest challenge of a new theory and practice of the State in Latin America is to build broad developmental coalitions that are able to counter the centrifugal interests of local elites and transnational corporations. 

  10. 基于比较优势理论的产学研协同创新动力机制研究%Research on dynamic mechanism of industry-university-research collaborative innovation based on theory of comparative advantage

    Institute of Scientific and Technical Information of China (English)

    于兆吉; 周松涛; 王海军

    2015-01-01

    作为协同创新的一种基本范式,如何提高产学研联盟中企业、高校、科研院所之间合作的积极性和稳定性是协同创新动力机制研究需要解决的主要问题. 借鉴经济学中的比较优势理论,以国际商品贸易合作现象为启发,通过构建产学研比较优势数学模型验证了比较优势的存在是促使双方合作的重要内在动力. 研究发现当各参与主体拥有的比较优势越明显时,双方协同合作的可能性也会越高. 针对以上研究结论,从参与主体、政府、市场三方面提出增强我国产学研协同创新动力的建议.%As a basic paradigm of collaborative innovation, how to improve the enthusiasm and stability of cooperation between enterprises, universities and research institutes with industry-university-research alliance is the main problem to be solved of the research on dynamic mechanism of collaborative innovation. Based on the theory of comparative advantage in economics, and inspired by international merchandise trade cooperation phenomenon, it is tested that the existence of comparative advantage is an important intrinsic motivation to promote bilateral cooperation through establishing mathematical model of industry-university-research comparative advantage. It is found that when each participant has more obvious comparative advantages, the possibilities of bilateral collaboration will be higher. Accordingly, suggestions are proposed of enhancing the motivation of industry-university-research collaborative innovation in China from three aspects of the participants, the government, and the market.

  11. Critical perspective from Latin America: an epistemic disobedience in the contemporary Occupational Therapy

    Directory of Open Access Journals (Sweden)

    Juan Pino Morán

    2016-04-01

    Full Text Available The article aims to present the critical foundations underlying the Occupational Therapy practice construction in Chile and Latin America. Although the manuscript has a theoretical/conceptual development, it is the result of the tension emerging from daily practice. The results presented have the political intention of inviting occupational therapists to identify a chain of common knowledge, applicable in various fields of the discipline role. The work’s scope should be sized as a small bibliographical discussion of a much broader and deeper stream, however, it offers us various inputs for practice and theory and research in Occupational Therapy. In conclusion we can identify a number of theories, methodologies and techniques used in the practice of occupational therapy that are not clearly identified as a particular perspective from Latin America, which is the manuscript proposal, inviting to a deeper discussion .

  12. A Comparative Study of Two Chinese Versions of Emma in the Perspective of Pragmatic Adaptation Theory%语用顺应论视角下《爱玛》两个中译本评析

    Institute of Scientific and Technical Information of China (English)

    万书婷

    2012-01-01

    以维索尔伦的语用顺应论为指导,从语境因素、语言结构、动态顺应等维度举例比较分析简·奥斯汀的代表作——《爱玛》两个中文版本:张经浩译本和孙致礼译本,由此探讨在文学翻译过程中,译者为了使目的语读者更好地理解原著是如何做出一系列语言选择以顺应原语和目的语的语言和文化。%Taking Verschueren's adaptation theory as theoretical framework,this paper sets out to compare two Chinese versions of Jane Austen's Emma-SUN Zhi-li's version and ZHANG Jing-hao's from contextual aspect,linguistic aspect and dynamic aspect,from which it discusses in the process of literary translation,how translators make linguistic choices to adapt to the source language's characteristic,culture and those of the target language,for the purpose of helping the readers better understand the original works.

  13. 基于生命周期评价的生态绿屋面形式比较测试研究%Compare and test different forms of green-roofs with LCA theory

    Institute of Scientific and Technical Information of China (English)

    李恒威; 叶建军; 魏道江

    2012-01-01

    为了评定生态绿屋面的环境效益,提出生态绿屋面的形式分类比较方法,针对绿屋面生产、施工阶段全寿命周期评价(LCA)比较分析,尤其是栽培条件、规模形态以及经济效益等方面的测试与评价.同时采用热流计对建筑屋面的传热系数进行了现场实测与测量误差分析,得到比较结论.计算模型和实测数据结果对不同形式生态绿屋面设计应用选择有一定的参考价值.%In order to evaluate the environmental benefit of ecological roofs, the authors proposed the method to classify the types of green roofs. Based on the LCA(life cycle assessment) theory, the method compared green roofs in construction and delivering stages, which especially tested and evaluated cultivation conditions, sizes, economic effectiveness, etc. Meanwhile the heat transfer coefficients were measured with heat flux meter in site and the errors are analyzed, orderly the conclusion was drawn by comparing those parameters. The computing model and the measured data are very useful for the designer to make right choice from the different forms of green roofs.

  14. Forensic anthropology in Latin America.

    Science.gov (United States)

    Işcan, M Y; Olivera, H E

    2000-03-13

    Forensic anthropology has been one of the fastest growing medico-legal disciplines both in its contribution to the practical needs of the legal system and research accomplishments. New anthropological standards were developed to apply to a specific population of a region. The purpose of this paper is to analyze a large sample of anthropological forensic cases and to review pertinent literature that deals with anthropological standards developed for the population of the continent of Central and South America. Using Uruguay as an example, there was not a single office or anthropologist assigned to analyze human skeletal remains in Uruguay. In 1991 the Laboratorio de Antropología Forense at the Morgue Judicial of Montevideo was created. A total of 189 forensic anthropological cases (276 individuals) were analyzed since this date. Twenty six percent of cases involving human remains were positively identified. The majority came from the Departamento de Montevideo, the largest population district of the country. Most of the cases fell into the 60 to 69 years old age range (35%). Females represented 32% of the total. Since the establishment of the laboratory, the number of forensic cases increased considerably from 20 in 1991 to 40 in 1997. The case studies were accompanied with skull-photo superimposition and facial reconstruction when no other evidence for positive identification was available. This service provided by the laboratory was quickly known to coroners, law enforcement agencies, and other legal authorities and thus utilized not only in Uruguay but also in several other countries in the continent. Because of the obvious need for an anthropologist, there are now university programs to provide forensic anthropological education. Yet, research has lagged behind considerably. Deficiencies are obvious in basic osteological standards of estimating age, calculating stature, determining sex and assessing race that can be applied to populations of the continent

  15. Packaging Theory.

    Science.gov (United States)

    Williams, Jeffrey

    1994-01-01

    Considers the recent flood of anthologies of literary criticism and theory as exemplifications of the confluence of pedagogical concerns, economics of publishing, and other historical factors. Looks specifically at how these anthologies present theory. Cites problems with their formatting theory and proposes alternative ways of organizing theory…

  16. Agency Theory

    DEFF Research Database (Denmark)

    Linder, Stefan; Foss, Nicolai Juul

    Agency theory studies the problems and solutions linked to delegation of tasks from principals to agents in the context of conflicting interests between the parties. Beginning from clear assumptions about rationality, contracting and informational conditions, the theory addresses problems of ex...... agency theory to enjoy considerable scientific impact on social science; however, it has also attracted considerable criticism....

  17. Agency Theory

    DEFF Research Database (Denmark)

    Linder, Stefan; Foss, Nicolai Juul

    2015-01-01

    Agency theory studies the problems and solutions linked to delegation of tasks from principals to agents in the context of conflicting interests between the parties. Beginning from clear assumptions about rationality, contracting, and informational conditions, the theory addresses problems of ex...... agency theory to enjoy considerable scientific impact on social science; however, it has also attracted considerable criticism....

  18. Discovering potential sources of emerging pathogens: South America is a reservoir of generalist avian blood parasites.

    Science.gov (United States)

    Moens, Michaël A J; Pérez-Tris, Javier

    2016-01-01

    Generalist pathogens are capable of infecting a wide range of host species, and may pose serious disease emergence threats if accidentally moved outside their native areas. To date little effort has been devoted to identifying geographic areas that may act as reservoirs of generalist pathogens. According to current theory, where host diversity is high, parasite specialisation in one host species may be penalised by reduced host availability, while generalist parasites may benefit from the exploitation of various host species. Therefore natural selection could favor generalist parasites where host diversity is high. Here we explored if, in a highly diverse bird community in Ecuador, a generalist strategy is promoted among local Haemoproteus and Plasmodium blood-borne parasites compared with similar parasite communities throughout the world. We reconstructed the phylogenetic relationships of every parasite lineage in order to understand the evolution of host specificity in this megadiverse area. We found high levels of host generalisation for both parasite genera, and the mean host range of the Haemoproteus community in Ecuador was significantly higher than other parasite communities in other areas outside the Neotropics. Generalist Haemoproteus parasites in this bird community had diverse phylogenetic ancestry, were closely related to specialist parasites and were apparently endemic to the Amazon, showing that different parasites have independently evolved into host generalists in this region. Finally we show that Haemoproteus communities in Ecuador and South America are more generalist than in temperate areas, making this continent a hotspot of generalist Haemoproteus parasites for wild birds.

  19. Are civil wars to blame for crime in Central America?

    Directory of Open Access Journals (Sweden)

    Ana Sofia Cardenal Izquierdo

    2008-04-01

    Full Text Available The countries of Central America are high up on the list of nations with the highest crime rates in the world. According to the literature, the most common argument is that these high crimerates are a legacy of the armed conflicts of the 1980s. This article subjects this theory to an empirical examination. Even though the analysis is preliminary and limited, the results serve to question theexistence of such a link between war and crime. The data show that the areas most affected by war in El Salvador and Guatemala are not the ones that show the highest rates of crime. Furthermore, no direct relation exists between the presence of armed conflict and crime rates at a national level. The presence of armed conflict is neither a necessary factor nor a sufficient one for criminal violence. Onthe contrary, this work points to a close link between inequality and crime rates at a national level.

  20. PISA TESTS IN LATIN AMERICA: RESULTS IN CONTEXT

    Directory of Open Access Journals (Sweden)

    Guillermina Tiramonti

    2014-05-01

    Full Text Available The educational reforms implemented in Latin America in the ‘90s introduced changes in the modes of regulation of educational systems based on the adoption of mechanisms for assessing student achievement. Since 2000, eight Latin-American countries (Argentina, Chile, Uruguay, Colombia, Brazil, Costa Rica, Mexico and Peru are involved in the PISA tests. The article presents a brief review of the social and educational situation of the Region, relevant for the interpretation and comparative analysis of the results of these tests that is presented below.

  1. Addendum to the Building America House Simulation Protocols

    Energy Technology Data Exchange (ETDEWEB)

    Engebrecht-Metzger, C.; Wilson, E.; Horowitz, S.

    2012-12-01

    As Building America (BA) has grown to include a large and diverse cross-section of the home building and retrofit industries, it has become more important to develop accurate, consistent analysis techniques to measure progress towards the program's goals. The House Simulation Protocols (HSP) provides guidance to program partners and managers so that energy savings for new construction and retrofit projects can be compared alongside each other. The HSP provides the program with analysis methods that are proven to be effective and reliable in investigating the energy use of advanced energy systems and of entire houses.

  2. Addendum to the Building America House Simulation Protocols

    Energy Technology Data Exchange (ETDEWEB)

    Engebrecht, C. Metzger [National Renewable Energy Lab. (NREL), Golden, CO (United States); Wilson, E. [National Renewable Energy Lab. (NREL), Golden, CO (United States); Horowitz, S. [National Renewable Energy Lab. (NREL), Golden, CO (United States)

    2012-12-01

    As DOE's Building America program has grown to include a large and diverse cross-section of the home building and retrofit industries, it has become more important to develop accurate, consistent analysis techniques to measure progress towards the program’s goals. The House Simulation Protocols (HSP) provide guidance to program partners and managers so that energy savings for new construction and retrofit projects can be compared alongside each other. The HSP provides the program with analysis methods that are proven to be effective and reliable in investigating the energy use of advanced energy systems and of entire houses.

  3. The ribbon continent of northwestern South America

    Science.gov (United States)

    Altamira-Areyan, Armando

    The tectonic structure of the Plate Boundary Zone (PBZ) between the Caribbean Plate (CARIB) and the South American Plate (SOAM) is interpreted using models that require CARIB motion from the Pacific into the Atlantic. Those models can be subdivided into: (1) those in which the island arc rocks that are now in the CARIB-SOAM PBZ have collided with the northern South America margin, either obliquely or directly during the Cretaceous or during the Cenozoic, and (2) those in which the island arc rocks now in the CARIB-SOAM PBZ collided with the west coast of South America during the Cretaceous and were transferred to the northern margin by transform motion during the Cenozoic. Magnetic anomalies were first rotated in the Central and South Atlantic, holding Africa fixed to establish how much NOAM had converged on SOAM during the Cenozoic. WSW convergence was discovered to have been accommodated in the northern boundary of the CARIB. There is no evidence of convergence in the form of Cenozoic island arc igneous rocks on the north coast of South America. Those results are consistent only with models of Class (2) that call for transform movement of material that had collided with the west coast of South America along the CARIB-SOAM PBZ on the northern margin of South America. 40Ar/39Ar ages of island arc rocks from northern Venezuela were found to be older than ca 70 Ma, which is consistent with a requirement of models of Class (2) that those rocks are from an island arc which collided with the west coast of South America during Cretaceous times. Testing that conclusion using data from Ecuador, Colombia, Venezuela, the Netherlands Antilles, Trinidad and Tobago has led to the construction of a new ribbon continent model of the northwestern Cordillera of South America. Because the part of the ribbon continent on the north coast of South America has been experiencing substantial deformation in the Maracaibo block during the past 10 m.y., structures in that body have had to be

  4. History of primary vasculitis in Latin America.

    Science.gov (United States)

    Iglesias Gammara, Antonio; Coral, Paola; Quintana, Gerardo; Toro, Carlos E; Flores, Luis Felipe; Matteson, Eric L; Restrepo, José Félix

    2010-03-01

    A literature review utilizing Fepafem, Bireme, LiLacs, Scielo Colombia, Scielo Internacional, former MedLine, Pubmed, and BVS Colombia as well as manual searches in the libraries of major Latin American universities was performed to study vasculitis in Latin America. Since 1945, a total of 752 articles have been published by Latin American authors. However, only a minority are devoted to primary vasculitides, and even fewer have been published in indexed journals. Approximately 126 are in OLD, Medline, Pubmed, Bireme, and Scielo. Most publications are from Mexico, followed by Brazil and Colombia. Systematic studies of the epidemiology of primary idiopathic vasculitis are available for a few countries, i.e. Brazil, Mexico, Colombia, Chile, and Peru. Takayasu arteritis and ANCA-associated vasculitis are the best studied forms of vasculitis in Latin America. Interest and expertise in vasculitis is growing in Latin America, as reflected in the increased number of published articles from this region of the world in the last decade. Racial and environmental factors are possibly responsible for the differential expression of various types of primary vasculitis observed in Latin America. With time, the unique features, epidemiology, and better treatment strategies for idiopathic vasculitides in Latin America will emerge.

  5. Cardiovascular Research Publications from Latin America between 1999 and 2008. A Bibliometric Study

    Energy Technology Data Exchange (ETDEWEB)

    Colantonio, Lisandro D., E-mail: Lisandro.Colantonio@fulbrightmail.org [Department of Epidemiology - University of Alabama at Birmingham School of Public Health, Birmingham (United States); Department of Public Health, School of Medicine, University of Buenos Aires, Buenos Aires (Argentina); Baldridge, Abigail S.; Huffman, Mark D. [Northwestern University Feinberg School of Medicine, Chicago (United States); Bloomfield, Gerald S. [Duke University Medical Center - Duke Clinical Research Institute and Duke Global Health Institute, Durham (United States); Prabhakaran, Dorairaj [Centre for Chronic Disease Control, New Delhi (India)

    2015-01-15

    Cardiovascular research publications seem to be increasing in Latin America overall. To analyze trends in cardiovascular publications and their citations from countries in Latin America between 1999 and 2008, and to compare them with those from the rest of the countries. We retrieved references of cardiovascular publications between 1999 and 2008 and their five-year post-publication citations from the Web of Knowledge database. For countries in Latin America, we calculated the total number of publications and their citation indices (total citations divided by number of publications) by year. We analyzed trends on publications and citation indices over time using Poisson regression models. The analysis was repeated for Latin America as a region, and compared with that for the rest of the countries grouped according to economic development. Brazil (n = 6,132) had the highest number of publications in1999-2008, followed by Argentina (n = 1,686), Mexico (n = 1,368) and Chile (n = 874). Most countries showed an increase in publications over time, leaded by Guatemala (36.5% annually [95%CI: 16.7%-59.7%]), Colombia (22.1% [16.3%-28.2%]), Costa Rica (18.1% [8.1%-28.9%]) and Brazil (17.9% [16.9%-19.1%]). However, trends on citation indices varied widely (from -33.8% to 28.4%). From 1999 to 2008, cardiovascular publications of Latin America increased by 12.9% (12.1%-13.5%) annually. However, the citation indices of Latin America increased 1.5% (1.3%-1.7%) annually, a lower increase than those of all other country groups analyzed. Although the number of cardiovascular publications of Latin America increased from 1999 to 2008, trends on citation indices suggest they may have had a relatively low impact on the research field, stressing the importance of considering quality and dissemination on local research policies.

  6. Atomic theories

    CERN Document Server

    Loring, FH

    2014-01-01

    Summarising the most novel facts and theories which were coming into prominence at the time, particularly those which had not yet been incorporated into standard textbooks, this important work was first published in 1921. The subjects treated cover a wide range of research that was being conducted into the atom, and include Quantum Theory, the Bohr Theory, the Sommerfield extension of Bohr's work, the Octet Theory and Isotopes, as well as Ionisation Potentials and Solar Phenomena. Because much of the material of Atomic Theories lies on the boundary between experimentally verified fact and spec

  7. Grounded theory.

    Science.gov (United States)

    Harris, Tina

    2015-04-29

    Grounded theory is a popular research approach in health care and the social sciences. This article provides a description of grounded theory methodology and its key components, using examples from published studies to demonstrate practical application. It aims to demystify grounded theory for novice nurse researchers, by explaining what it is, when to use it, why they would want to use it and how to use it. It should enable nurse researchers to decide if grounded theory is an appropriate approach for their research, and to determine the quality of any grounded theory research they read.

  8. Ring theory

    CERN Document Server

    Rowen, Louis H

    1991-01-01

    This is an abridged edition of the author's previous two-volume work, Ring Theory, which concentrates on essential material for a general ring theory course while ommitting much of the material intended for ring theory specialists. It has been praised by reviewers:**""As a textbook for graduate students, Ring Theory joins the best....The experts will find several attractive and pleasant features in Ring Theory. The most noteworthy is the inclusion, usually in supplements and appendices, of many useful constructions which are hard to locate outside of the original sources....The audience of non

  9. Comparing 'Popular' and 'State' education in Latin Americaand Europe

    Directory of Open Access Journals (Sweden)

    Liam Kane

    2013-04-01

    Full Text Available In the 1970s, a radical adult education movement in Latin America, operating outside the state and engaging in what it called 'popular education', sparked world-wide interest in its educational theory and practice. More recently, with a change in state formations in Latin America, the movement has reconsidered its potential relationship with the state. Though Europe has its own history of popular education, some have argued that advanced economies and welfare states co-opted any strong independent educational movement: today popular education is more likely to take place 'within and against' the state, rather than outside it. Based on literature review, personal interviews and site visits, this article (a discusses what is understood by popular education (b outlines the development of popular education in Latin America, examining its relationship with different types of state (c considers differences between Latin America and Europe and what, if anything, popular educators in the two regions might learn from each other.

  10. Learning theory and gestalt therapy.

    Science.gov (United States)

    Harper, R; Bauer, R; Kannarkat, J

    1976-01-01

    This article discusses the theory and operations of Gestalt Therapy from the viewpoint of learning theory. General comparative issues are elaborated as well as the concepts of introjection, retroflextion, confluence, and projection. Principles and techniques of Gestalt Therapy are discussed in terms of learning theory paradigm. Practical implications of the various Gestalt techniques are presented.

  11. PTI TECHNICAL ASSISTANCE TO REBUILD AMERICA

    Energy Technology Data Exchange (ETDEWEB)

    Unknown

    2002-04-01

    Public Technology Inc. (PTI) engaged in a cooperative agreement, DE-FC26-01NT41107, with the US Department of Energy's (DOE) Rebuild America Program to provide energy efficiency and energy conservation technical assistance to local governments across the United States. The first year of the cooperative agreement dated from April 2, 2001 to April 1, 2002, at a funding level of $375,000. This technical report covers the period of October 2001--March 2002. PTI appreciates the support that it has received from Rebuild America and plans to continue, with DOE and Rebuild America support, to serve in a strategic capacity, lending the technical experience of its staff and that of the Energy Task Force on approaches to increasing program efficiencies, furthering program development, and coordinating information sharing to help ensure that energy programs are responsive to the needs of local governments.

  12. Building America Industrialized Housing Partnership (BAIHP II)

    Energy Technology Data Exchange (ETDEWEB)

    Abernethy, Bob; Chandra, Subrato; Baden, Steven; Cummings, Jim; Cummings, Jamie; Beal, David; Chasar, David; Colon, Carlos; Dutton, Wanda; Fairey, Philip; Fonorow, Ken; Gil, Camilo; Gordon, Andrew; Hoak, David; Kerr, Ryan; Peeks, Brady; Kosar, Douglas; Hewes, Tom; Kalaghchy, Safvat; Lubliner, Mike; Martin, Eric; McIlvaine, Janet; Moyer, Neil; Liguori, Sabrina; Parker, Danny; Sherwin, John; Stroer, Dennis; Thomas-Rees, Stephanie; Daniel, Danielle; McIlvaine, Janet

    2010-11-30

    This report summarizes the work conducted by the Building America Industrialized Housing Partnership (BAIHP - www.baihp.org) during the final budget period (BP5) of our contract, January 1, 2010 to November 30, 2010. Highlights from the four previous budget periods are included for context. BAIHP is led by the Florida Solar Energy Center (FSEC) of the University of Central Florida. With over 50 Industry Partners including factory and site builders, work in BP5 was performed in six tasks areas: Building America System Research Management, Documentation and Technical Support; System Performance Evaluations; Prototype House Evaluations; Initial Community Scale Evaluations; Project Closeout, Final Review of BA Communities; and Other Research Activities.

  13. Natural products research in latin america.

    Science.gov (United States)

    Gupta, M P

    2001-01-01

    The biodiversity found in Latin America is one of the richest in the world, yet its potential as a source of new pharmaceuticals has not been fully investigated. This paper will explore the present status of natural products research in 19 Latin American countries. Future research needs will be presented along with reports on the ethnobotanical and bioprospection projects under way in Latin America. The presentation will be based on data collected over the last five years and will be presented within the framework of the Fine Pharmaceutical Subprogram of the Iberoamerican Program of Science and Technology for Development (CYTED), a novel international cooperation program.

  14. History of rehabilitation in Latin America.

    Science.gov (United States)

    Sotelano, Fernando

    2012-04-01

    Rehabilitation in Latin America was pioneered in the 1940s by orthopedists who envisioned the need for the integration of people with disabilities into society. The objective of this review is to discuss the evolution of rehabilitation in Latin America during the last few decades. This review is divided into the following sections: (1) prehistory, (2) the beginning, (3) common features in different countries, (4) the beginning and consolidation of the specialty, (5) the Latin American Medical Association of Rehabilitation, and (6) journals published by different countries.

  15. 变异学视域下比较文学跨文明研究的类型及合法性%Types and Validity of Cross-Civilization Studies in Comparative Literature from the Perspective of Variation Theory

    Institute of Scientific and Technical Information of China (English)

    曹顺庆; 曾诣

    2015-01-01

    变异学视域下的比较文学跨文明研究分为相同比较和差异比较两大类型。其相同比较强调的是话语平等的“求同”,而不是话语覆盖的“同化”;而差异比较则体现为影响研究下的影响变异、平行研究下的阐发变异和平行研究之新范畴的共同话题不同话语这三种类型。影响变异着重关注影响研究中真实但一直被忽视的变异因素;阐发变异则从话语的异质性与双向互动、阐释有效性的内涵类同与过度阐释两方面丰富了传统的平行研究;共同话题不同话语作为平行研究的新范畴,从异质话语比较的维度实现了平行研究的突破。上述诸种跨文明研究类型为差异比较确立了合法性,从学理上丰富了现有比较文学的学科理论,实现了既“求同”又“求异”的真正比较。%Cross-civilization studies in comparative literature from the perspective of variation theory is classified into similarity comparison and difference comparison. The similarity comparison emphasizes “seeking similarities” on the basis of equal discourse rather than “assimilation” based on discourse coverage. And the difference comparison includes the influence variation in the influence study, the interpretation variation in the analogy study, and the new category of the analogy study-common topics in different discourse. The influence variation mainly focuses on the real but neglected variation factors in the influence study. The interpretation variation enriches the traditional analogy study in two aspects: the heterogeneity and two-way interaction of discourse, and the connotation analogy and over-interpretation of interpretive availability. Common topics in different discourse, a new category of the analogy study, is a breakthrough in analogy study on the dimension of heterogeneous discourse. All these cross-civilization studies make difference comparison valid, which enriches the theories

  16. A Comparative Research on Women' s Leisure Constrains Based on Gender Role and Constraints Theory%基于性别角色和制约理论对女性休闲的比较研究

    Institute of Scientific and Technical Information of China (English)

    高连利; 方旭红; 许丹丹

    2012-01-01

    With the development of economy, the improvement of social status of women and the increasing social pressure, more and more women chose to participate in leisure activities. Analyzing relevant factors restricting women' leisure participation will promote the development of women's leisure activities. However, different research perspectives and conclusions are got in different areas. So comparing the relationships and differences based on combed research about women's leisure constrains in the fields of Gender Role and Constraints Theory will enrich the study of women's leisure and promote the harmonious development of two research areas.%随着社会经济的发展,女性社会地位的提高以及生活压力的加剧,越来越多的女性参与到休闲活动中去。对制约女性休闲参与的相关因素进行分析将会进一步促进女性休闲活动的顺利进行。然而不同研究领域,其研究视角和研究结论也不尽相同。对性别角色和制约理论下关于女性休闲制约的研究进行梳理,比较两个视角下女性休闲制约研究的联系和区别将进一步丰富女性休闲研究内容,并促进两个研究领域的融洽发展。

  17. Dual Double Field Theory

    CERN Document Server

    Bergshoeff, Eric A; Penas, Victor A; Riccioni, Fabio

    2016-01-01

    We present the dual formulation of double field theory at the linearized level. This is a classically equivalent theory describing the duals of the dilaton, the Kalb-Ramond field and the graviton in a T-duality or O(D,D) covariant way. In agreement with previous proposals, the resulting theory encodes fields in mixed Young-tableau representations, combining them into an antisymmetric 4-tensor under O(D,D). In contrast to previous proposals, the theory also requires an antisymmetric 2-tensor and a singlet, which are not all pure gauge. The need for these additional fields is analogous to a similar phenomenon for "exotic" dualizations, and we clarify this by comparing with the dualizations of the component fields. We close with some speculative remarks on the significance of these observations for the full non-linear theory yet to be constructed.

  18. Model theory

    CERN Document Server

    Chang, CC

    2012-01-01

    Model theory deals with a branch of mathematical logic showing connections between a formal language and its interpretations or models. This is the first and most successful textbook in logical model theory. Extensively updated and corrected in 1990 to accommodate developments in model theoretic methods - including classification theory and nonstandard analysis - the third edition added entirely new sections, exercises, and references. Each chapter introduces an individual method and discusses specific applications. Basic methods of constructing models include constants, elementary chains, Sko

  19. Viability Theory

    CERN Document Server

    Aubin, Jean-Pierre; Saint-Pierre, Patrick

    2011-01-01

    Viability theory designs and develops mathematical and algorithmic methods for investigating the adaptation to viability constraints of evolutions governed by complex systems under uncertainty that are found in many domains involving living beings, from biological evolution to economics, from environmental sciences to financial markets, from control theory and robotics to cognitive sciences. It involves interdisciplinary investigations spanning fields that have traditionally developed in isolation. The purpose of this book is to present an initiation to applications of viability theory, explai

  20. Field theory

    CERN Document Server

    Roman, Steven

    2006-01-01

    Intended for graduate courses or for independent study, this book presents the basic theory of fields. The first part begins with a discussion of polynomials over a ring, the division algorithm, irreducibility, field extensions, and embeddings. The second part is devoted to Galois theory. The third part of the book treats the theory of binomials. The book concludes with a chapter on families of binomials - the Kummer theory. This new edition has been completely rewritten in order to improve the pedagogy and to make the text more accessible to graduate students.  The exercises have also been im

  1. Galois Theory

    CERN Document Server

    Cox, David A

    2012-01-01

    Praise for the First Edition ". . .will certainly fascinate anyone interested in abstract algebra: a remarkable book!"—Monatshefte fur Mathematik Galois theory is one of the most established topics in mathematics, with historical roots that led to the development of many central concepts in modern algebra, including groups and fields. Covering classic applications of the theory, such as solvability by radicals, geometric constructions, and finite fields, Galois Theory, Second Edition delves into novel topics like Abel’s theory of Abelian equations, casus irreducibili, and the Galo

  2. Game theory.

    Science.gov (United States)

    Dufwenberg, Martin

    2011-03-01

    Game theory is a toolkit for examining situations where decision makers influence each other. I discuss the nature of game-theoretic analysis, the history of game theory, why game theory is useful for understanding human psychology, and why game theory has played a key role in the recent explosion of interest in the field of behavioral economics. WIREs Cogni Sci 2011 2 167-173 DOI: 10.1002/wcs.119 For further resources related to this article, please visit the WIREs website.

  3. Elastoplasticity theory

    CERN Document Server

    Hashiguchi, Koichi

    2009-01-01

    This book details the mathematics and continuum mechanics necessary as a foundation of elastoplasticity theory. It explains physical backgrounds with illustrations and provides descriptions of detailed derivation processes..

  4. Comparative study of"imitation theory"--from Platon to Aristotle%“模仿说”比较研究——从柏拉图到亚里士多德

    Institute of Scientific and Technical Information of China (English)

    胡安奇

    2012-01-01

      “模仿”历来是西方文论和美学史的一条主线,它贯穿于文论和美学的始终。众多的模仿说当中,古希腊柏拉图建立在“理念论”之上的模仿说和亚里士多德“艺术模仿现实”的唯物主义模仿说尤其光彩夺目,他们共同奠定了西方美学、文论的理论基础。本文简要回顾了柏拉图和亚氏模仿说的基本内涵,并对这两种模仿说进行简略的比较,最后小结柏拉图和亚氏师徒二人在模仿说理论上产生分歧的原因。%  "Imitation"has always been the masterstroke of western literary theory and aesthetics history, it runs through in literary theory and aesthetics. In many imitation, ancient Greek Platon’s"imitation theory"built on the"theory of idea"and Aristotle’s materialism imitating of"art imitating reality"is especially bright, together they laid the theory foundation of western aesthetics and literary theory. This paper presents the basic connotation of Platon and Asia 's imitation theory, and a simple comparison between the two kind of imitation theory, finally summarizes the reasons of divergence.

  5. Theory of simple liquids

    CERN Document Server

    Hansen, Jean-Pierre

    1986-01-01

    This book gives a comprehensive and up-to-date treatment of the theory of ""simple"" liquids. The new second edition has been rearranged and considerably expanded to give a balanced account both of basic theory and of the advances of the past decade. It presents the main ideas of modern liquid state theory in a way that is both pedagogical and self-contained. The book should be accessible to graduate students and research workers, both experimentalists and theorists, who have a good background in elementary mechanics.Key Features* Compares theoretical deductions with experimental r

  6. Principles of copula theory

    CERN Document Server

    Durante, Fabrizio

    2015-01-01

    Principles of Copula Theory explores the state of the art on copulas and provides you with the foundation to use copulas in a variety of applications. Throughout the book, historical remarks and further readings highlight active research in the field, including new results, streamlined presentations, and new proofs of old results.After covering the essentials of copula theory, the book addresses the issue of modeling dependence among components of a random vector using copulas. It then presents copulas from the point of view of measure theory, compares methods for the approximation of copulas,

  7. 77 FR 13479 - Read Across America Day, 2012

    Science.gov (United States)

    2012-03-06

    ... Read Across America Day in our homes, schools, and libraries, let us recommit to empowering every child... America Day, we also celebrate the birthday of Theodor Seuss Geisel--an author whose fanciful wordplay...

  8. Building America Top Innovations 2012: Unvented, Conditioned Crawlspaces

    Energy Technology Data Exchange (ETDEWEB)

    none,

    2013-01-01

    This Building America Top Innovations profile describes Building America research which influenced code requirements by demonstrating that unvented, conditioned crawlspaces use 15% to 18% less energy for heating and cooling while reducing humidity over 20% in humid climates.

  9. Building America Top Innovations 2012: Tankless Gas Water Heater Performance

    Energy Technology Data Exchange (ETDEWEB)

    none,

    2013-01-01

    This Building America Top Innovations profile describes Building America field testing that shed light on how real-world water usage affects energy saving estimates of high-efficiency water heating systems.

  10. 2013 Building America Research Planning Meeting Summary

    Energy Technology Data Exchange (ETDEWEB)

    Metzger, C. [National Renewable Energy Lab. (NREL), Golden, CO (United States); Hunt, S. [Confluence Communications, Missoula, MT (united States)

    2014-02-01

    The Building America Research Planning Meeting was held October 28-30, 2013, in Washington, DC. This meeting provides one opportunity each year for the research teams, national laboratories and Department of Energy (DOE) managers to meet in person to share the most pertinent information and collaboration updates. This report documents the presentations, highlights key program updates, and outlines next steps for the program.

  11. Women in Insurgent Groups in Latin America

    Science.gov (United States)

    2014-03-01

    in operations. This inclusion can break machista attitudes towards women , and therefore, break down stereotypes of women on the battlefield as...NAVAL POSTGRADUATE SCHOOL MONTEREY, CALIFORNIA THESIS Approved for public release; distribution is unlimited WOMEN IN INSURGENT...AND SUBTITLE WOMEN IN INSURGENT GROUPS IN LATIN AMERICA 5. FUNDING NUMBERS 6. AUTHOR (S) Omar Manual Roberto-Cáez 7. PERFORMING ORGANIZATION NAME

  12. Nighttime Lights of North America - Direct Download

    Data.gov (United States)

    U.S. Geological Survey, Department of the Interior — This map layer is an image of nighttime lights for North America, including the Caribbean and most of Mexico. The data were collected in 1996 and 1997 as part of the...

  13. 75 FR 38594 - Buy America Waiver Notification

    Science.gov (United States)

    2010-07-02

    ... a Buy America waiver is appropriate for the use of non-domestic high strength steel bars ASTM A722M... source for the high strength steel bars ASTM A722M 150 ksi (1\\7/8\\ inches in diameter). As a result... is appropriate for the use of non-domestic high strength steel bars for emergency repairs of...

  14. German Studies in America. German Studies Notes.

    Science.gov (United States)

    Sander, Volkmar; Osterle, Heinz D.

    This volume contains two papers, "German Studies in America," by Volkmar Sander, and "Historicism, Marxism, Structuralism: Ideas for German Culture Courses," by Heinz D. Osterle. The first paper discusses the position of German studies in the United States today. The greatest challenge comes from low enrollments; therefore,…

  15. Evaluation of Breakthrough's "America 2049" Game

    Science.gov (United States)

    Diamond, James; Brunner, Cornelia

    2011-01-01

    Breakthrough, a global human rights organization, produced "America 2049," an alternate-reality game set in a dystopian future in which the United States is on the verge of breaking apart because of an inability to tolerate diversity and promote human rights. During the 12-week game launch, players uncovered artifacts related to the…

  16. Forest health conditions in North America

    Energy Technology Data Exchange (ETDEWEB)

    Tkacz, Borys [USDA Forest Service, Forest Health Protection, 1601 North Kent Street, RPC7-FHP, Arlington, VA 22209 (United States)], E-mail: btkacz@fs.fed.us; Moody, Ben [Canadian Forest Service, Ottawa, ON (Canada); Castillo, Jaime Villa [Comision Nacional Forestal, Zapopan, Jalisco (Mexico); Fenn, Mark E. [USDA Forest Service, Pacific Southwest Research Station, Riverside, CA (United States)

    2008-10-15

    Some of the greatest forest health impacts in North America are caused by invasive forest insects and pathogens (e.g., emerald ash borer and sudden oak death in the US), by severe outbreaks of native pests (e.g., mountain pine beetle in Canada), and fires exacerbated by changing climate. Ozone and N and S pollutants continue to impact the health of forests in several regions of North America. Long-term monitoring of forest health indicators has facilitated the assessment of forest health and sustainability in North America. By linking a nationwide network of forest health plots with the more extensive forest inventory, forest health experts in the US have evaluated current trends for major forest health indicators and developed assessments of future risks. Canada and Mexico currently lack nationwide networks of forest health plots. Development and expansion of these networks is critical to effective assessment of future forest health impacts. - The forests of North America continue to face many biotic and abiotic stressors including fragmentation, fires, native and invasive pests, and air pollution.

  17. "Math for America" Isn't

    Science.gov (United States)

    Wolfmeyer, Mark

    2014-01-01

    Aspects of the Math for America organization's actions, aims and affiliations are analyzed for their effects on urban schools and society at large. These aspects are argued as evidence to consider MfA as an agent working against democratic practice and in favor of furthering profit and its resultant inequitable resource distribution. The…

  18. Civilian-Military Relations in Latin America

    Science.gov (United States)

    2006-10-01

    Pion-Berlin, “The Defense Wisdom Deficit in Latin America: A Reply to Thomas C. Bruneau,” Revista Fuerzas Armadas y Sociedad , forthcoming. 3. Sir...Guatemala (Guatemala: Fondo de Cultura editorial), 1995. 27. in our view, the major defect of the peace and democratization process in Guatemala was

  19. The Race Race: Assimilation in America

    Science.gov (United States)

    Balis, Andrea; Aman, Michael

    2013-01-01

    Can race and assimilation be taught? Interdisciplinary pedagogy provides a methodology, context, and use of nontraditional texts culled from American cultural history such as from, theater and historical texts. This approach and these texts prove useful for an examination of race and assimilation in America. The paper describes a course that while…

  20. Rat Lungworm Expands into North America

    Centers for Disease Control (CDC) Podcasts

    2016-01-21

    Emily York, integrated pest management specialist at the Sam Noble Museum of Natural History, discusses the rat lungworm expansion in North America.  Created: 1/21/2016 by National Center for Emerging and Zoonotic Infectious Diseases (NCEZID).   Date Released: 1/21/2016.

  1. 76 FR 72027 - Buy America Waiver Notification

    Science.gov (United States)

    2011-11-21

    ... Alameda County's intent to buy the Nissan Leaf, which is made in Japan, when there are electric vehicles... finding that a partial Buy America waiver is appropriate for the purchase of 79 electric sedans and 11 electric vans in Alameda County, California. The partial waiver will permit the purchase of these...

  2. A World of Hurt: Latin America

    Science.gov (United States)

    Ramaswami, Rama

    2009-01-01

    Massive socioeconomic problems have left Latin American education in a dire condition, and decades behind the rest of the globe in integrating technology into teaching and learning. But a few spots in the region offer signs of hope. In this article, the author describes several efforts at tech-based educational reform in Latin America.

  3. High School Students and "Read Across America"?

    Science.gov (United States)

    Fisher, Julieta Dias; Hill, Ann

    2004-01-01

    Although more commonly associated with elementary school rather than high school students, "Read Across America" celebrations can cater to any age group and generate enthusiasm for reading long after the festivities have ended. In this article, the authors, library media specialists at Washington Township High School in Sewell, New Jersey, share …

  4. Who Will Save America's Urban Catholic Schools?

    Science.gov (United States)

    Hamilton, Scott W., Ed.

    2008-01-01

    America's urban Catholic schools are in crisis. This report finds that over 1,300 schools have shut down since 1990, mostly in our cities. As a result, some 300,000 students have been displaced--forced to attend other public, private, or parochial schools. The school closures have cost taxpayers more than $20 billion to accommodate the additional…

  5. 78 FR 41492 - Buy America Policy

    Science.gov (United States)

    2013-07-10

    ... clarified the concept of this public interest exclusion by stating that Buy America requirements are... local entities to pursue clean fuel technologies. Moreover, the FHWA has no data to determine what such..., complex projects. One potential method of easing the inspection and reporting burden on...

  6. Black America: Looking Inward or Outward?

    Science.gov (United States)

    Jordan, Vernon E.

    1996-01-01

    Presents some observations on what the recent attacks on affirmative action, the O. J. Simpson trial, and the Million Man March say about racism in America. In particular, the author assesses the Million Man March in terms of black leadership and its influence in helping black men to become more involved in constructive community service. (GR)

  7. Urban restructuring and deregulations in Latin America

    NARCIS (Netherlands)

    Carmona, M.

    1992-01-01

    With this work we continue the debate on the trends of urban restructuring in Latin America. In fact due to the large economic crisis of the 80-ies, the continent has decreased is living standards to that of 12 years ago. The productive potential has increased in 1,3% in circumstances that in the pr

  8. Science Editing in America: An Overview

    Institute of Scientific and Technical Information of China (English)

    Barbara Gastel

    2003-01-01

    @@ In America, science editing appears to be an increasingly recognized field. In what settings do American science editors work, and what kinds of work do they do ? What is their educational background? What style manuals and other resources do they use? What organizations serve them? What topics and issues do they find of professional interest?

  9. Imaging of subducted lithosphere beneath South America

    NARCIS (Netherlands)

    Engdahl, E.R.; Hilst, R.D. van der; Berrocal, J.

    1995-01-01

    Tomographic images are produced for the deep structure of the Andean subduction zone beneath western South America. The data used in the imaging are the delay times of P, pP and pwP phases from relocated teleseismic earthquakes in the region. Regionally, structural features larger than about 150 km

  10. Inequality in Latin America : Breaking with History?

    OpenAIRE

    de Ferranti, David; Guillermo E. Perry; Ferreira, Francisco H. G.; Walton, Michael

    2004-01-01

    With the exception of Sub-Saharan Africa, Latin America and the Caribbean has been one of the regions of the world with the greatest inequality. This report explores why the region suffers from such persistent inequality, identifies how it hampers development, and suggests ways to achieve greater equity in the distribution of wealth, incomes and opportunities. The study draws on data from ...

  11. "Song of Myself":Song of America

    Institute of Scientific and Technical Information of China (English)

    靳晴

    2015-01-01

    Walt Whitman's poem"Song of Myself"is one of his most representative works. It is not only a song of Whitman him-self, but also a song of America. This paper will make an analysis of this poem from the angle of its theme, including American identity and American dream.

  12. What's Cooking in America's Schoolyard Gardens?

    Science.gov (United States)

    Salter, Cathy

    2010-01-01

    This article discusses what's cooking in America's schoolyard gardens. From First Lady Michelle Obama's world-famous Kitchen Garden, to Alice Waters' groundbreaking Edible Schoolyard in Berkeley, California, to a nationally recognized elementary school learning garden in the small Midwestern town of Ashland, Missouri, school children are planting…

  13. The Scapegoat Generation: America's War on Adolescents.

    Science.gov (United States)

    Males, Mike A.

    Claiming that politicians, private interests, and the media unfairly blame adolescents for America's social problems, this book explodes various myths about teen pregnancy, violence, and risk behaviors. The chapters are: (1) "Impounding the Future," examining trends in various social indicators such as rising rates of child poverty…

  14. 75 FR 64394 - Buy America Waiver Notification

    Science.gov (United States)

    2010-10-19

    ... the need for PennDOT to consider alternate designs using domestic steel on future Federal-aid projects... a Buy America waiver is appropriate for the use of non-domestic Steel Pipe; A53 Grade B, 26'' OD, 0.375'' wall for construction of a Recovery Act project on SR 60, Section A40, in Allegheny...

  15. Sisterhood and Sentimentality: Americas's Earliest Preschool Centers.

    Science.gov (United States)

    Hewes, Dorothy W.

    1995-01-01

    Describes how America's oldest child-care centers began during a period of economic growth and intellectual turbulence in the late 1800s, when women from all walks of American life united to promote the kindergarten movement inspired by the German Friedrich Froebel. Chronicles the movement from a women's history perspective. (ET)

  16. 76 FR 71861 - America Recycles Day, 2011

    Science.gov (United States)

    2011-11-18

    ... efforts to include a vast array of pioneering industrial processes that will drive our clean economy and... sustainable economic growth that will carry us through this century and into the next. To meet the economic... impacts of our products and strive to manage our resources in a sustainable way. To ensure America...

  17. On the German Language in America.

    Science.gov (United States)

    Lewis, Brian A.

    Sociolinguistic patterns among German immigrants to the United States of America are examined in this paper. Earlier studies in this area, including Wolfgang Viereck's work published in "Orbis" in 1967 and 1968, are examined. Through an analysis of the immigration patterns of the citizens of Glarus, Switzerland, in 1845 to New Glarus,…

  18. The Law and Bondage in Early America

    Science.gov (United States)

    Miller, M. Sammy

    1976-01-01

    Concludes that economic determinism may not sufficiently explain servitude and other institutions in Colonial America but that the efforts of legal, cultural, and intellectual historians may reveal more about the subordination of whites and blacks to their social betters. (Author/AM)

  19. Chinese Studies Librarianship in North America

    Institute of Scientific and Technical Information of China (English)

    Karen T. Wei

    2004-01-01

    Although American libraries had begun collecting Chinese language materials in the 19th century, notably the United States Library of Congress in 1869, Yale in 1878, Harvard in 1879, and Berkeley in 1896, East Asian studies librarianship in North America, including China studies librarianship, was not fully developed until the 1960s. There was no formal organization that represented the interest of Chinese studies librarians because there were few of them and most of them were China scholars rather than trained librarians. More than 100 years later, the number of Chinese studies librarians in North America has increased considerably,primarily in response to the demand in the field of China studies and more recently to the needs of immigrant population and the general public who has an interest in China.This paper traces the history and growth of Chinese studies librarianship in North America, documents the development of the professional organization that represents Chinese studies librarians, and examines the training programs that prepare them for their jobs. It also attempts to propose an international exchange forum aiming to bring together Chinese studies librarians in North America and librarians in China in sharing their experience and expertise to achieve the ultimate goal of serving the users.

  20. The State of America's Children Yearbook: 1996.

    Science.gov (United States)

    Finlay, Belva, Ed.

    The Children's Defense Fund (CDF) 1996 report on the state of America's children highlights the critical need for renewed commitment to children by early childhood advocates, parents, and all sectors of society. The introduction describes in general the crises faced by children and calls for adults to recommit their energies to providing solutions…

  1. Scientific research in America at risk

    CERN Multimedia

    Wojcicki, Esther

    2008-01-01

    "It is hard to believe, but science in America is struggling. Funding for scientific research has been cut back for years, but this year it is so bad that Fermi National Laboratory in the Chicago area, needs to close down for six weeks in 2008 to make ends meet." (1/2 page)

  2. Make Music, America! At MENC's National Conference.

    Science.gov (United States)

    Ponick, F. S.

    1999-01-01

    Highlights the Music Educators National Conference (MENC) schedules for March 8-11, 2000, which focus on U.S. music and music education following the theme of "Make Music, America!" Covers session topics such as music and young children, improvisation, Orff techniques, at-risk students, world music, research, and technology. Includes an…

  3. 76 FR 14457 - Buy America Waiver Notification

    Science.gov (United States)

    2011-03-16

    ... America waiver, stated in 41 U.S.C. 10b, is appropriate for the purchase of foreign Mobile Harbor Cranes.... This waiver is being requested because mobile harbor cranes are not produced in the United States... the National Institute of Standards and Technology, to identify manufacturing opportunities...

  4. 78 FR 48218 - Buy America Policy

    Science.gov (United States)

    2013-08-07

    ... [Federal Register Volume 78, Number 152 (Wednesday, August 7, 2013)] [Notices] [Page 48218] [FR Doc No: 2013-19176] DEPARTMENT OF TRANSPORTATION Federal Highway Administration [FHWA Docket No. FHWA-2013-0041] Buy America Policy AGENCY: Federal Highway Administration (FHWA), DOT. ACTION: Notice...

  5. The southern edge of cratonic North America: Evidence from new magnetic satellite observations

    DEFF Research Database (Denmark)

    Purucker, M.; Mandea, M.; Hulot, G.

    2002-01-01

    A global model is developed for both induced and remanent magnetizations in the terrestrial lithosphere. The model is compared with, and well-described by, Ørsted satellite observations. Interpretation of the observations over North America suggests that the large total field anomalies, associated...

  6. The southern edge of cratonic North America: Evidence from new satellite magnetometer observations

    DEFF Research Database (Denmark)

    Purucker, M.; Langlais, B.; Olsen, Nils

    2002-01-01

    [1] A global model is developed for both induced and remanent magnetizations in the terrestrial lithosphere. The model is compared with, and well-described by, Orsted satellite observations. Interpretation of the observations over North America suggests that the large total field anomalies...

  7. Asian American Educational Attainment and Earning Power in Post-Racial America

    Science.gov (United States)

    Covarrubias, Alejandro; Liou, Daniel D.

    2014-01-01

    This policy brief contextualizes the most recent data on mobility of Asian American students within the K to Ph.D. educational system in the new, so-called, colorblind post-racial America. Achievement data on Asian Americans are often presented in the same breath with Whites when compared to the academic achievement of African American, and…

  8. 论刑事诉讼对恐怖犯罪的早期介入*--基于中美司法实践的比较讨论%On Early Intervention of Criminal Litigation in Terrorism Crimes---base on Comparative Discussion of Sino - America Legal Practice

    Institute of Scientific and Technical Information of China (English)

    韩阳

    2016-01-01

    Terrorism crimes are spreading rapidly and globally of which the violent nature and destruc-tive force have urged governments to adjust their traditional combating policies so as to adapt to terrorism crimes. Compared with military measures,the judicial approach is the least controversial control in practice and thus has become a priority for most countries. In order to effectively control terrorism crimes,the prose-cution at the early stage has become a new criminal justice policy,though early prosecution has also encoun-tered many predicaments,for instance,the time to intervene is difficult to specify and the offence cannot be proved for lack of conducts. Nevertheless,the conspiracy theory in judicial practice has solved many prob-lems to a large extent by application together with independent prosecution policy. In spite of the remarkable effect,some negative consequences should be resolved in the long run such as the expansion of prosecution boundary and the reproach for prosecution merely based on criminal intentions.%恐怖犯罪在全球一直处于上升和蔓延趋势,其暴力性质和严重的破坏力使得各国在应对这种犯罪类型时都不得不调整针对传统犯罪的打击政策。相对于军事打击等手段而言,司法手段在恐怖犯罪中的适用争议性是最小的,因此越来越成为各国政府的首选。而为了有效控制恐怖犯罪的蔓延,早期追诉又成了一个新的刑事司法政策。但早期追诉也带来了很多问题,比如介入的时间难以确定;由于没有实施行为,证明难以完成等。共谋理论在司法实践中的发展在很大程度上解决了这些难题,共谋责任和独立追诉政策的并用效果显著,不过由此带来的追诉面扩大以及仅就犯罪意图进行追诉的责难可能是我们在相当长的时间内都必须面对的。

  9. Poverty and Corruption in Latin America, Callenges for a Sustainable Development Strategy

    Directory of Open Access Journals (Sweden)

    Ana Estefanía Carballo

    2010-11-01

    Full Text Available The effects of corruption on country-level economic performance are part of a dynamic debate in the social sciences, concerning the measure and monitoring of corruption. In Latin America, the coexistence of high poverty levels with high economic growth rates continues to be a puzzling situation that may be partly explained by corruption and institutional quality indicators. This study discusses the links between poverty and corruption, by constructing an econometric model that compares corruption measurements with poverty and development indicators for Latin America, for the 1998-2008 decade.

  10. The Use of Government-Initiated Referendums in Latin America: Towards a Theory of Referendum Causes El uso de los referendos de iniciativa gubernamental en América Latina: Hacia una teoría sobre las causas del uso de votaciones populares iniciadas por el gobierno

    Directory of Open Access Journals (Sweden)

    ANITA BREUER

    2009-01-01

    Full Text Available Over the past two decades there has been a considerable increase in the number of referendums worldwide. The existing literature on direct democracy has so far failed to explain this phenomenon by delivering a consistent theory on the causes of referendums. This explorative study aims at undertaking steps toward closing this gap by focusing on the specific type of facultative government-initiated referendums (FGIR and their use in presidential systems. Using QC A (a case-sensitive technique based on the formal logic of Boolean algebra, this study systematically compares the political opportunity structures of 49 presidential systems from 12 Latin American countries to detect the factors that spurred or obstructed the occurrence of FGIR. It concludes that FGIR are closely linked to high levels of party system fragmentation and divided government, i.e. two factors which have long been deemed problematic in the context of presidential systems, while their obstruction is mainly owed to the specific constitutional provisions regulating the referendum device.En las últimas dos décadas Ma existido alrededor del mundo un considerable aumento en el número de votaciones populares. Sin embargo, la literatura existente sobre democracia directa no na sabido explicar el fenómeno mediante una teoría consistente de las causas de los referendums. Este estudio exploratorio busca dar un paso adelante para cerrar esta brecha, enfocándose en los referendum facultativos iniciados por poderes políticos formales (facultative government-initiated referendums - FGIR y su uso en los sistemas presidenciales. Utilizando OCA (técnica basada en lógica formal de álgebra booleanas, este estudio hace una comparación sistemática de la estructura de oportunidades políticas de 49 sistemas presidenciales de 12 países de América Latina, para detectar los factores que estimulan u obstruyen la ocurrencia de FGIR. Se concluye que los FGIR están fuertemente ligados a

  11. On the importance of cascading moisture recycling in South America

    Directory of Open Access Journals (Sweden)

    D. C. Zemp

    2014-06-01

    Full Text Available Continental moisture recycling is a crucial process of the South American climate system. Evapotranspiration from the Amazon river basin contributes to precipitation regionally and in the La Plata river basin. Here we present an in-depth analysis of South American moisture recycling. We quantify the importance of "cascading moisture recycling", which describes the exchange of moisture between the vegetation and the atmosphere through precipitation and re-evaporation cycles on its way between two locations on the continent. We use the Water Accounting Model 2-layers (WAM-2layers forced by precipitation from TRMM and evapotranspiration from MODIS for the period 2001 until 2010 to construct moisture recycling networks. These networks describe the direction and amount of moisture transported from its source (evapotranspiration to its destination (precipitation in South America. Model-based calculations of continental and regional recycling ratios in the Amazon basin compare well with other existing studies using different datasets and methodologies. Our results show that cascading moisture recycling contributes about 10% to the total precipitation over South America and 17% over the La Plata basin. Considering cascading moisture recycling increases the total dependency of the La Plata basin on moisture from the Amazon basin by about 25% from 23 to 29% during the wet season. Using tools from complex network analysis, we reveal the importance of the south-western part of the Amazon basin as a key intermediary region for continental moisture transport in South America during the wet season. Our results suggest that land use change in this region might have a stronger impact on downwind rainfed agriculture and ecosystem stability than previously thought.

  12. Recommendations for the management of candidemia in adults in Latin America. Latin America Invasive Mycosis Network.

    Science.gov (United States)

    Nucci, Marcio; Thompson-Moya, Luis; Guzman-Blanco, Manuel; Tiraboschi, Iris Nora; Cortes, Jorge Alberto; Echevarría, Juan; Sifuentes, Jose; Zurita, Jeannete; Santolaya, María E; Alvarado Matute, Tito; de Queiroz Telles, Flavio; Colombo, Arnaldo Lopes

    2013-01-01

    Candidemia is one of the most frequent opportunistic mycoses worldwide. Limited epidemiological studies in Latin America indicate that incidence rates are higher in this region than in the Northern Hemisphere. Diagnosis is often made late in the infection, affecting the initiation of antifungal therapy. A more scientific approach, based on specific parameters, for diagnosis and management of candidemia in Latin America is warranted. 'Recommendations for the diagnosis and management of candidemia' are a series of manuscripts that have been developed by members of the Latin America Invasive Mycosis Network. They aim to provide a set of best-evidence recommendations for the diagnosis and management of candidemia. This publication, 'Recommendations for the management of candidemia in adults in Latin America', was written to provide guidance to healthcare professionals on the management of adults who have, or who are at risk of, candidemia. Computerized searches of existing literature were performed by PubMed. The data were extensively reviewed and analyzed by members of the group. The group also met on two occasions to pose questions, discuss conflicting views, and deliberate on a series of management recommendations. 'Recommendations for the management of candidemia in adults in Latin America' includes prophylaxis, empirical therapy, therapy for proven candidemia, patient work-up following diagnosis of candidemia, duration of candidemia treatment, and central venous catheter management in patients with candidemia. This manuscript is the second of this series that deals with diagnosis and treatment of invasive candidiasis. Other publications in this series include: 'Recommendations for the diagnosis of candidemia in Latin America', 'Recommendations for the management of candidemia in children in Latin America', and 'Recommendations for the management of candidemia in neonates in Latin America'.

  13. Recommendations for the management of candidemia in neonates in Latin America. Latin America Invasive Mycosis Network.

    Science.gov (United States)

    Santolaya, María E; Alvarado Matute, Tito; de Queiroz Telles, Flavio; Colombo, Arnaldo Lopes; Zurita, Jeannete; Tiraboschi, Iris Nora; Cortes, Jorge Alberto; Thompson-Moya, Luis; Guzman-Blanco, Manuel; Sifuentes, Jose; Echevarría, Juan; Nucci, Marcio

    2013-01-01

    Candidemia is one of the most frequent opportunistic mycoses worldwide. Limited epidemiological studies in Latin America indicate that incidence rates are higher in this region than in the Northern Hemisphere. Diagnosis is often made late in the infection, affecting the initiation of antifungal therapy. A more scientific approach, based on specific parameters, for diagnosis and management of candidemia in Latin America is warranted. 'Recommendations for the diagnosis and management of candidemia' are a series of manuscripts that have been developed by members of the Latin America Invasive Mycosis Network. They aim to provide a set of best-evidence recommendations for the diagnosis and management of candidemia. This publication, 'Recommendations for the management of candidemia in neonates in Latin America', was written to provide guidance to healthcare professionals on the management of neonates who have, or who are at risk of, candidemia. Computerized searches of existing literature were performed by PubMed. The data were extensively reviewed and analyzed by members of the group. The group also met on two occasions to pose questions, discuss conflicting views, and deliberate on a series of management recommendations. 'Recommendations for the management of candidemia in neonates in Latin America' includes prophylaxis, empirical therapy, therapy for proven candidemia, patient work-up following diagnosis of candidemia, central venous catheter management, and management of complications. This manuscript is the fourth of this series that deals with diagnosis and treatment of invasive candidiasis. Other publications in this series include: 'Recommendations for the diagnosis of candidemia in Latin America', 'Recommendations for the management of candidemia in adults in Latin America', and 'Recommendations for the management of candidemia in children in Latin America'.

  14. Recommendations for the management of candidemia in children in Latin America. Latin America Invasive Mycosis Network.

    Science.gov (United States)

    Santolaya, María E; de Queiroz Telles, Flavio; Alvarado Matute, Tito; Colombo, Arnaldo Lopes; Zurita, Jeannete; Tiraboschi, Iris Nora; Cortes, Jorge Alberto; Thompson-Moya, Luis; Guzman-Blanco, Manuel; Sifuentes, Jose; Echevarría, Juan; Nucci, Marcio

    2013-01-01

    Candidemia is one of the most frequent opportunistic mycoses worldwide. Limited epidemiological studies in Latin America indicate that incidence rates are higher in this region than in the Northern Hemisphere. Diagnosis is often made late in the infection, affecting the initiation of antifungal therapy. A more scientific approach, based on specific parameters, for diagnosis and management of candidemia in Latin America is warranted. 'Recommendations for the diagnosis and management of candidemia' are a series of manuscripts that have been developed by members of the Latin America Invasive Mycosis Network. They aim to provide a set of best-evidence recommendations for the diagnosis and management of candidemia. This publication, 'Recommendations for the management of candidemia in children in Latin America', was written to provide guidance to healthcare professionals on the management of children who have, or who are at risk of, candidemia. Computerized searches of existing literature were performed by PubMed. The data were extensively reviewed and analyzed by members of the group. The group also met on two occasions to pose questions, discuss conflicting views, and deliberate on a series of management recommendations. 'Recommendations for the management of candidemia in children in Latin America' includes prophylaxis, empirical therapy, therapy for proven candidemia, patient work-up following diagnosis of candidemia, duration of candidemia treatment, and central venous catheter management in children with candidemia. This manuscript is the third of this series that deals with diagnosis and treatment of invasive candidiasis. Other publications in this series include: 'Recommendations for the diagnosis of candidemia in Latin America', 'Recommendations for the management of candidemia in adults in Latin America', and 'Recommendations for the management of candidemia in neonates in Latin America'.

  15. Recommendations for the diagnosis of candidemia in Latin America. Latin America Invasive Mycosis Network.

    Science.gov (United States)

    Colombo, Arnaldo Lopes; Cortes, Jorge Alberto; Zurita, Jeannete; Guzman-Blanco, Manuel; Alvarado Matute, Tito; de Queiroz Telles, Flavio; Santolaya, María E; Tiraboschi, Iris Nora; Echevarría, Juan; Sifuentes, Jose; Thompson-Moya, Luis; Nucci, Marcio

    2013-01-01

    Candidemia is one of the most frequent opportunistic mycoses worldwide. Limited epidemiological studies in Latin America indicate that incidence rates are higher in this region than in the Northern Hemisphere. Diagnosis is often made late in the infection, affecting the initiation of antifungal therapy. A more scientific approach, based on specific parameters, for diagnosis and management of candidemia in Latin America is warranted. 'Recommendations for the diagnosis and management of candidemia' are a series of manuscripts that have been developed by members of the Latin America Invasive Mycosis Network. They aim to provide a set of best-evidence recommendations for the diagnosis and management of candidemia. This publication, 'Recommendations for the diagnosis of candidemia in Latin America', was written to provide guidance to healthcare professionals on the diagnosis of candidemia, as well as on the usefulness and application of susceptibility testing in patients who have a confirmed diagnosis of candidemia. Computerized searches of existing literature were performed by PubMed. The data were extensively reviewed and analyzed by members of the group. The group also met on two occasions to pose questions, discuss conflicting views, and deliberate on a series of management recommendations. 'Recommendations for the diagnosis of candidemia in Latin America' includes diagnostic methods used to detect candidemia, Candida species identification, and susceptibility testing. The availability of methods, their costs and treatment settings are considered. This manuscript is the first of this series that deals with diagnosis and treatment of invasive candidiasis. Other publications in this series include: 'Recommendations for the management of candidemia in adults in Latin America', 'Recommendations for the management of candidemia in children in Latin America', and 'Recommendations for the management of candidemia in neonates in Latin America'.

  16. A Ceratopsian Dinosaur from the Lower Cretaceous of Western North America, and the Biogeography of Neoceratopsia.

    Directory of Open Access Journals (Sweden)

    Andrew A Farke

    Full Text Available The fossil record for neoceratopsian (horned dinosaurs in the Lower Cretaceous of North America primarily comprises isolated teeth and postcrania of limited taxonomic resolution, hampering previous efforts to reconstruct the early evolution of this group in North America. An associated cranium and lower jaw from the Cloverly Formation (?middle-late Albian, between 104 and 109 million years old of southern Montana is designated as the holotype for Aquilops americanus gen. et sp. nov. Aquilops americanus is distinguished by several autapomorphies, including a strongly hooked rostral bone with a midline boss and an elongate and sharply pointed antorbital fossa. The skull in the only known specimen is comparatively small, measuring 84 mm between the tips of the rostral and jugal. The taxon is interpreted as a basal neoceratopsian closely related to Early Cretaceous Asian taxa, such as Liaoceratops and Auroraceratops. Biogeographically, A. americanus probably originated via a dispersal from Asia into North America; the exact route of this dispersal is ambiguous, although a Beringian rather than European route seems more likely in light of the absence of ceratopsians in the Early Cretaceous of Europe. Other amniote clades show similar biogeographic patterns, supporting an intercontinental migratory event between Asia and North America during the late Early Cretaceous. The temporal and geographic distribution of Upper Cretaceous neoceratopsians (leptoceratopsids and ceratopsoids suggests at least intermittent connections between North America and Asia through the early Late Cretaceous, likely followed by an interval of isolation and finally reconnection during the latest Cretaceous.

  17. Evidence of two co-circulating genetic lineages of canine distemper virus in South America.

    Science.gov (United States)

    Panzera, Yanina; Calderón, Marina Gallo; Sarute, Nicolás; Guasco, Soledad; Cardeillac, Arianne; Bonilla, Braulio; Hernández, Martín; Francia, Lourdes; Bedó, Gabriela; La Torre, José; Pérez, Ruben

    2012-01-01

    Canine distemper virus (CDV) is the etiological agent of a multisystemic infection that affects different species of carnivores and is responsible for one of the main diseases suffered by dogs. Recent data have shown a worldwide increase in the incidence of the disease, including in vaccinated dog populations, which necessitates the analysis of circulating strains. The hemagglutinin (H) gene, which encodes the major antigenic viral protein, has been widely used to determine the degree of genetic variability and to associate CDVs in different worldwide circulating lineages. Here, we obtained the sequence of the first full-length H gene of field South American CDV strains and compared it with sequences of worldwide circulating field strains and vaccine viruses. In South America, we detect two co-circulating lineages with different prevalences: the Europe 1 lineage and a new South America 2 lineage. The Europe 1 lineage was the most prevalent in South America, and we suggest renaming it the Europe 1/South America 1 lineage. The South America 2 lineage was found only in Argentina and appears related to wild CDV strains. All South American CDV strains showed high amino-acid divergence from vaccine strains. This genetic variability may be a possible factor leading to the resurgence of distemper cases in vaccinated dog populations.

  18. Neogene tectonics and climate forcing of carnivora dispersals between Asia and North America

    Directory of Open Access Journals (Sweden)

    H. Jiang

    2015-08-01

    Full Text Available Exchange records of terrestrial mammals can be combined with available tectonic and climatic documents to evaluate major biological and environmental events. Previous studies identified four carnivoran dispersals between Eurasia and North America in the Neogene, namely, at ∼ 20, 13–11, 8–7, and ∼ 4 Ma. In order to evaluate driving mechanism of these biological events, we collected, compared and analyzed a large number of published records. The results indicate that the carnivoran dispersal from Eurasia to North America at ∼ 20 Ma was probably caused by intense tectonic movements in Asia. During 13–11 Ma, global cooling possibly drove the mammal exchanges between Eurasia and North America. By comparison, the carnivoran dispersal from Eurasia to North America at 8–7 Ma was probably caused by the combination of global cooling and tectonic movements of the Tibetan Plateau. Similar to during 13–11 Ma, the carnivoran exchanges between Eurasia and North America at ∼ 4 Ma were possibly driven by global cooling.

  19. Neogene tectonics and climate forcing of carnivora dispersals between Asia and North America

    Science.gov (United States)

    Jiang, H.; Deng, T.; Li, Y.; Xu, H.

    2015-08-01

    Exchange records of terrestrial mammals can be combined with available tectonic and climatic documents to evaluate major biological and environmental events. Previous studies identified four carnivoran dispersals between Eurasia and North America in the Neogene, namely, at ∼ 20, 13-11, 8-7, and ∼ 4 Ma. In order to evaluate driving mechanism of these biological events, we collected, compared and analyzed a large number of published records. The results indicate that the carnivoran dispersal from Eurasia to North America at ∼ 20 Ma was probably caused by intense tectonic movements in Asia. During 13-11 Ma, global cooling possibly drove the mammal exchanges between Eurasia and North America. By comparison, the carnivoran dispersal from Eurasia to North America at 8-7 Ma was probably caused by the combination of global cooling and tectonic movements of the Tibetan Plateau. Similar to during 13-11 Ma, the carnivoran exchanges between Eurasia and North America at ∼ 4 Ma were possibly driven by global cooling.

  20. Do citation systems represent theories of truth?

    Directory of Open Access Journals (Sweden)

    Betsy Van der Veer Martens

    2001-01-01

    Full Text Available This article suggests that the citation can be viewed not only as a "concept symbol" but also as a "boundary object". The scientific, legal, and patent citation systems in America are examined at the micro, meso, and macro levels in order to understand how they function as commodified theories of truth in contemporary knowledge representation. This approach also offers a meta-theoretical overview of existing citation research efforts in science, law, and technology that may be of interdisciplinary interest.