WorldWideScience

Sample records for political dynamics determined

  1. Political Dynamics Affected by Turncoats

    Science.gov (United States)

    Di Salvo, Rosa; Gorgone, Matteo; Oliveri, Francesco

    2017-11-01

    An operatorial theoretical model based on raising and lowering fermionic operators for the description of the dynamics of a political system consisting of macro-groups affected by turncoat-like behaviors is presented. The analysis of the party system dynamics is carried on by combining the action of a suitable quadratic Hamiltonian operator with specific rules (depending on the variations of the mean values of the observables) able to adjust periodically the conservative model to the political environment.

  2. The Political Dynamics of Higher Education Policy

    Science.gov (United States)

    Dar, Luciana

    2012-01-01

    This paper presents a framework informed by spatial models of politics to explain the dynamics of political competition in higher education policy and, in particular, the observed instability in the relationship between political variables and policy outcomes. To this end, I explore competing hypotheses for the relationship between government…

  3. Analyzing the Communication Dynamics of Political Campaigns

    Science.gov (United States)

    Tannenbaum, Sally

    2007-01-01

    It is widely agreed that college students do not fully participate in the political process. The most commonly cited reasons are apathy, indifference, and ignorance. This article presents an activity that aims to help students learn about communication dynamics in the context of political campaigns and develop an appreciation and confidence about…

  4. Student Youth: Dynamics of Political Interests (Regional Aspect

    Directory of Open Access Journals (Sweden)

    Morozova Galina Viktorovna

    2015-12-01

    Full Text Available The article presents the main results of the research of interests and political orientations of student youth which was carried out in 2014 at the Kazan federal university and its branches in the territory of the Republic of Tatarstan. The choice of student youth as a reference group is caused by a number of factors, among which we should name the status of intellectual elite, social and political mobility that allows to consider students as the potential actors of socio-political transformations in the country. The data obtained during poll compared with the results of last research allow defining the dynamics of development of student youth’s political sentiment in the region. The study of political attitudes, preferences of students was based on the identification of a number of indicators (degree of interest in politics, the level of personal involvement in political life and on the study of factors that determine the motivation of political behavior of students. Empirical studies make it possible to rank the problems that dominate the political consciousness of students in the region. These include a high level of corruption in the government, inflation, rising prices, the state of health and education systems and the growing income inequality. Particular attention is accented on the problems associated with the foreign policy aspects, threats, aggression from abroad. The study showed that most young people’s interest in politics is limited primarily by informational level, rarely they have desire to express their own position or judgments in political situations. The level of real political participation, socio-political activity of students is low. Obtained results let us notice the increasing trend of demonstration of protest behavior among certain part of the students.

  5. Political determinants of Health: Lessons for Pakistan.

    Science.gov (United States)

    Jooma, Rashid; Sabatinelli, Guido

    2014-05-01

    There is much concern about the capacity of the health system of Pakistan to meet its goals and obligations. Historically, the political thrust has been absent from the health policy formulation and this is reflected in the low and stagnant public allocations to health. Successive political leaderships have averred from considering healthcare is a common good rather than a market commodity and health has not been recognized as a constitutional right. Over 120 of world's nation states have accepted health as a constitutional right but the 1973 Constitution of Pakistan does not mandate health or education as a fundamental right and the recently adopted 18th constitutional amendment missed the opportunity to extend access to primary health care as an obligation of the State. It is argued in this communication that missing from the calculations of policy formulation and agenda setting is the political benefits of providing health and other social services to underserved populations. Across the developing world, many examples are presented of governments undertaking progressive health reforms that bring services where none existed and subsequently reaping electoral benefit. The political determinant of healthcare will be realized when the political leaders of poorly performing countries can be convinced that embracing distributive policies and successfully bringing healthcare to the poor can be major factors in their re-elections.

  6. Innovation networking between stability and political dynamics

    DEFF Research Database (Denmark)

    Koch, Christian

    2004-01-01

    of the contribution is to challenge and transcend these notions and develop an understanding of innovation networks as an interplay between stable and dynamic elements, where political processes in innovation are much more than a disruptive and even a counterproductive feature. It reviews the growing number...... of studies that highlight the political aspect of innovation. The paper reports on a study of innovation processes conducted within the EU—TSER-programme and a study made under the banner of management of technology. Intensive field studies in two constellations of enterprises were carried out. One......This contribution views innovation as a social activity of building networks, using software product development in multicompany alliances and networks as example. Innovation networks are frequently understood as quite stable arrangements characterised by high trust among the participants. The aim...

  7. Political Institutions and Their Historical Dynamics

    Science.gov (United States)

    Sandberg, Mikael; Lundberg, Per

    2012-01-01

    Traditionally, political scientists define political institutions deductively. This approach may prevent from discovery of existing institutions beyond the definitions. Here, a principal component analysis was used for an inductive extraction of dimensions in Polity IV data on the political institutions of all nations in the world the last two centuries. Three dimensions of institutions were revealed: core institutions of democracy, oligarchy, and despotism. We show that, historically and on a world scale, the dominance of the core institutions of despotism has first been replaced by a dominance of the core institutions of oligarchy, which in turn is now being followed by an increasing dominance by the core institutions of democracy. Nations do not take steps from despotic, to oligarchic and then to democratic institutions, however. Rather, nations hosting the core democracy institutions have succeeded in historically avoiding both the core institutions of despotism and those of oligarchy. On the other hand, some nations have not been influenced by any of these dimensions, while new institutional combinations are increasingly influencing others. We show that the extracted institutional dimensions do not correspond to the Polity scores for autocracy, “anocracy” and democracy, suggesting that changes in regime types occur at one level, while institutional dynamics work on another. Political regime types in that sense seem “canalized”, i.e., underlying institutional architectures can and do vary, but to a considerable extent independently of regime types and their transitions. The inductive approach adds to the deductive regime type studies in that it produces results in line with modern studies of cultural evolution and memetic institutionalism in which institutions are the units of observation, not the nations that acts as host for them. PMID:23056219

  8. Economic and Other Determinants of Political Trust

    Directory of Open Access Journals (Sweden)

    William R. DiPietro

    2016-01-01

    Full Text Available Political trust is important for the effective functioning of government. This paper uses cross country regression analysis to see whether three different measures of economic performance matter for political trust. The results lend support to the hypothesis that political trust is influenced by economic growth, the standard of living, and the appropriate use of government spending. In addition, the paper considers two institutional variables, perceived independence of the judiciary and the degree of democracy to assess their effect on political trust. It finds that perceived judicial independence has a positive effect on political trust, but democracy has a negative effect.

  9. Dynamics in Higher Education Politics: A Theoretical Model

    Science.gov (United States)

    Kauko, Jaakko

    2013-01-01

    This article presents a model for analysing dynamics in higher education politics (DHEP). Theoretically the model draws on the conceptual history of political contingency, agenda-setting theories and previous research on higher education dynamics. According to the model, socio-historical complexity can best be analysed along two dimensions: the…

  10. Is political behavior a viable coping strategy to perceived organizational politics? Unveiling the underlying resource dynamics.

    Science.gov (United States)

    Sun, Shuhua; Chen, Huaizhong

    2017-10-01

    [Correction Notice: An Erratum for this article was reported in Vol 102(10) of Journal of Applied Psychology (see record 2017-34254-001). In the article, Table 1 contained a formatting error. Correlation coefficient values in the last four cells of column 6 were misplaced with correlation coefficient values in the last four cells of column 7. All versions of this article have been corrected.] We conduct a theory-driven empirical investigation on whether political behavior, as a coping strategy to perceived organizational politics, creates resource trade-offs in moderating the relationship between perceived organizational politics and task performance. Drawing on conservation of resources theory, we hypothesize that political behavior mitigates the adverse effect of perceived organizational politics on task performance via psychological empowerment, yet exacerbates its adverse effect on task performance via emotional exhaustion. Three-wave multisource data from a sample of 222 employees and their 75 supervisors were collected for hypothesis testing. Findings supported our hypotheses. Our study enhances understandings of the complex resource dynamics of using political behavior to cope with perceived organizational politics and highlights the need to move stress-coping research from a focus on the stress-buffering effect of coping on outcomes to a focus on the underlying competing resource dynamics. (PsycINFO Database Record (c) 2017 APA, all rights reserved).

  11. Determinants of health: a progressive political platform.

    Science.gov (United States)

    Terris, M

    1994-01-01

    This paper is based on the statement in the Ottawa Charter for Health Promotion that "The fundamental conditions and resources for health are peace, shelter, education, food, income, a stable eco-system, sustainable resources, social justice and equity. Improvement in health requires a secure foundation in these basic prerequisites." It attempts to formulate a progressive political platform for a number of these prerequisites, offering a series of recommendations regarding education, employment, income, and housing, and urging that the proposed programs be funded by progressive taxation and major reductions in the military budget.

  12. Thinking politics sociologically - The Daily Life of the Professional Politician between Innovation and Determinism

    Directory of Open Access Journals (Sweden)

    Massimo Cerulo

    2012-06-01

    Full Text Available Abstract: The aim of my essay is to present some reflections on the possibility of thinking politics sociologically, from the point of view of a sociologist of everyday-life. During more than one year of ethnographic research on the field, I followed sixteen politicians in Calabria (south of Italy, eleven men and five women, using theshadowing technique and interviews. I will, here, attempt to resume some results of my enquiry, focusing in particular on the relation between innovation and determinism, as it comes out from the everyday actions of the political agents. Referring to the socialtheory of Pierre Bourdieu and to his analysis of the political field, I will underline how this latter influences practically the political agents. The internal dynamics in the political field seem to firmly bind the politicians and by consequence these latter appearto be forced to lay down experience and innovation. Their behaviour and their actions are determined by the political field’s logic and they seem compelled to act and take the world for granted.It appears therefore that there is no space for imagination in the professional politician’s everyday-life. The political field seems to spread an inescapable determinism.

  13. The Political Dynamics of Educational Changes in China

    Science.gov (United States)

    Huang, Zhongjing; Wang, Ting; Li, Xiaojun

    2016-01-01

    This article explores the trajectory of educational changes in China over the past three decades in the context of globalization and social and economic transformation. It addresses three research questions: what educational changes occurred in China, why some educational policies worked well but others failed, how the political dynamics of…

  14. Assessing Political Dynamics in Contemporary Malaysia: Implications for Democratic Change

    Directory of Open Access Journals (Sweden)

    Surain Subramaniam

    2012-01-01

    Full Text Available This article examines political dynamics in Malaysia and assesses the prospects for change in the direction of greater political liberalization. It focuses on the 12th General Election of 2008 and its implications for opportunities and challenges for liberal democratic change in Malaysia. It discusses the role of the internet-based new media in shaping an emerging public sphere, and some factors affecting the changing role of non-Malay voters in the political process. This article argues that democratization in Malaysia is already occurring, albeit at a gradual pace; it is being pushed by the new political forces of civil society actors, newly empowered opposition parties, and the internet-based media. The boundaries of this emerging democratic space is simultaneously being shaped and contested by the political competition between status-quo and reformist forces in this society. Some institutional changes have expanded the parameters of democratic space, although the entrenched dominant institutions of the ruling regime continue to wield sufficient amounts of institutional capacity to subvert any consolidation of these democratic changes for now.

  15. Rivers as Political Boundaries: Peru and its Dynamic Borders

    Science.gov (United States)

    Abad, J. D.; Escobar, C.; Garcia, A. M. P.; Ortals, C.; Frias, C. E.; Vizcarra, J.

    2014-12-01

    Rivers, although inherently dynamic, have been chosen as political boundaries since the beginning of colonization for several reasons. Such divisions were chosen namely for their defensive capabilities and military benefits, and because they were often the first features mapped out by explorers. Furthermore, rivers were indisputable boundaries that did not require boundary pillars or people to guard them. However, it is important to understand the complexities of a river as a boundary. All rivers inevitably change over time through processes such as accretion, deposition, cut-off, or avulsion, rendering a political boundary subject to dispute. Depending upon the flow, size, and surrounding land, a river will migrate differently than others. As these natural features migrate one country loses land while another gains land leading to tension between legal rigidity and fluid dynamism. This in turn can manifest in social disruption due to cultural differences, political upheaval, or conflict risk as a result of scarce water resources. The purpose of this research is to assess the temporal and spatial variability of the political boundaries of Peru that follow rivers. Peru shares borders with Colombia, Brazil, Bolivia, Chile, and Ecuador. A large part of its northern border with Colombia follows the Putumayo River and later the Amazon River. Part of its eastern border with Brazil follows the Yavari River and later the Yaquirana River. These rivers are natural features used as political boundaries yet they differ in how each migrates. By means of a spatial and temporal analysis of satellite images it was possible to obtain erosion and deposition areas for the Putumayo River, the portion of the Amazon River that is part of the Peruvian boundary, the Yavari River, and the Yaquirana River. The erosion and deposition areas were related to land distribution among Peru, Colombia, and Brazil. By examining the Digital Elevation Model one can see how the altitude of the

  16. Political determinants of social expenditures in Greece: an empirical analysis

    Directory of Open Access Journals (Sweden)

    Ebru Canikalp

    2017-09-01

    Full Text Available A view prominently expounded is that the interaction between the composition and the volume of public expenditures is directly affected by political, institutional, psephological and ideological indicators. A crucial component of public expenditures, social expenditures play an important role in the economy as they directly and indirectly affect the distribution of income and wealth. Social expenditures aim at reallocating income and wealth unequal distribution. These expenditures comprise cash benefits, direct in-kind provision of goods and services, and tax breaks with social purposes.The aim of this study is to determine the relationship between political structure, i.e. government fragmentation, ideological composition, elections and so on, and the social expenditures in Greece. Employing data from the Comparative Political Dataset (CPDS and the OECD Social Expenditure Database (SOCX, a time series analysis was conducted for Greece for the 1980-2014 period. The findings of the study indicate that voter turnout, spending on the elderly population and the number of government changes have positive and statistically significant effects on social expenditures in Greece while debt stock and cabinet composition have negative effects.

  17. Judging Political Hearts and Minds: How Political Dynamics Drive Social Judgments.

    Science.gov (United States)

    Cornwell, James F M; Bajger, Allison T; Higgins, E Tory

    2015-08-01

    We investigated how judgments of political messengers depend upon what would benefit one's preferred candidate. In Study 1a, participants were asked to evaluate the warmth and competence of the writer of a pro- or anti-Obama political message for the 2012 presidential election (Obama/warm; Romney/competent). When judging the messages, warmth was emphasized by Democrats and competence by Republicans. Study 1b replicated these effects for messages about Romney as well. Study 2 examined the 2004 presidential election where perceptions of the party candidates' warmth and competence reversed (Bush/warm; Kerry/competent). There competence was emphasized by Democrats and warmth by Republicans. Study 3 showed that varying the warmth and competence of each party's prospective candidates for the 2016 election influences whether warmth or competence is emphasized by Democrats or Republicans. Thus, differences between Republicans and Democrats in emphasizing warmth or competence reflect a dynamic motivated cognition that is tailored to benefit their preferred candidate. © 2015 by the Society for Personality and Social Psychology, Inc.

  18. An Agent-Based Dynamic Model of Politics, Fertility and Economic Development

    Directory of Open Access Journals (Sweden)

    Zining Yang

    2016-08-01

    Full Text Available In the political economy of development, government policy choices at a single point in time can dramatically affect a country's development path by impacting fertility, economic and political decisions across generations. Combining system dynamics and agent-based modeling approaches in a complex adaptive system, a simulation framework of the Politics of Fertility and Economic Development (POFED is formalized to understand the relationship between politics, economic, and demography change at both macro and micro levels. First, a new political capacity measurement is used; and the system dynamics model is validated with the latest data. Second, the endogenous attributes are fused with non-cooperative game theory in an agent-based framework to simulate the interactive political economic dynamics of individual intra-societal transactions. Finally, macro and micro levels are connected with policy levers of political capacity and political instability by merging system dynamics and agent-based components. This paper also explores the agent-based model's behavioral dynamics via simulation methods to identify paths towards economic development and political stability. This model demonstrates micro level human agency can act, react and interact, thus driving macro level dynamics, while macro structures provide political, social and economic environments that constrain or incentivize micro level human behavior.

  19. An Agent-Based Dynamic Model of Politics, Fertility and Economic Development

    OpenAIRE

    Zining Yang

    2016-01-01

    In the political economy of development, government policy choices at a single point in time can dramatically affect a country's development path by impacting fertility, economic and political decisions across generations. Combining system dynamics and agent-based modeling approaches in a complex adaptive system, a simulation framework of the Politics of Fertility and Economic Development (POFED) is formalized to understand the relationship between politics, economic, and demography change at...

  20. Determinants of Political Trust: A Lifetime Learning Model

    Science.gov (United States)

    Schoon, Ingrid; Cheng, Helen

    2011-01-01

    This article addresses questions regarding the origins of individual variations in political trust. Using 2 prospective longitudinal studies, we examine the associations between family background, general cognitive ability (g) and school motivation at early age, educational and occupational attainment in adulthood, and political trust measured in…

  1. 'Heated political dynamics exist ...': examining the politics of palliative care in rural British Columbia, Canada.

    Science.gov (United States)

    Crooks, Valorie A; Castleden, Heather; Hanlon, Neil; Schuurman, Nadine

    2011-01-01

    Palliative care is delivered by a number of professional groups and informal providers across a range of settings. This arrangement works well in that it maximizes avenues for providing care, but may also bring about complicated 'politics' due to struggles over control and decision-making power. Thirty-one interviews conducted with formal and informal palliative care providers in a rural region of British Columbia, Canada, are drawn upon as a case study. Three types of politics impacting on palliative care provision are identified: inter-community, inter-site, and inter-professional. Three themes crosscut these politics: ownership, entitlement, and administration. The politics revealed by the interviews, and heretofore underexplored in the palliative literature, have implications for the delivery of palliative care. For example, the outcomes of the politics simultaneously facilitate (e.g. by promoting advocacy for local services) and serve as a barrier to (e.g. by privileging certain communities/care sites/provider) palliative care provision.

  2. Political relevance in the eye of the beholder: Determining the substantiveness of TV shows and political debates with Twitter data

    NARCIS (Netherlands)

    Boukes, M.; Trilling, D.

    Addressing the call to move beyond a simple genre classification of TV shows as either substantive (hard) news or non-substantive (soft) infotainment, we propose using social media reactions to determine a program’s political relevance. Such an approach provides information that goes beyond genre or

  3. Dynamic capital structure and political patronage: the case of Malaysia

    OpenAIRE

    Ebrahim, M. Shahid; Girma, Sourafel; Shah, M. Eskandar; Williams, Jonathan

    2014-01-01

    This paper investigates the effect of political patronage on firms' capital structure. The evidence is from Malaysia, a country characterised by relationship-capitalism, and covers 1988 to 2009. Using a system GMM estimator we find firms set leverage targets and adjust towards them following deviations at the rate of 28% per annum. Next, we construct a natural experiment and use a difference-in-differences model to investigate if the strategic financing decisions of politically patronised fir...

  4. Political determinants of progress in the MDGs in Sub-Saharan Africa

    DEFF Research Database (Denmark)

    Atti, Emma; Gulis, Gabriel

    2017-01-01

    suggest a significant main effect of eco-political and geo-political groups on some of the health variables. Political conflict as measured by FSI and political participation as measured by CLS were stronger predictors of slow progress in reducing under-five mortality rates and maternal mortality ratios......Sub-Saharan Africa (SSA) lagged furthest behind in achieving targets for the millennium development goals (MDG). We investigate the hypothesis that its slow progress is influenced by political factors. Longitudinal data on three health MDG indicators: under-five mortality, maternal mortality....... Our findings highlight the need for further research on political determinants of mortality in SSA. Cohesive effort should focus on strengthening countries' political, economic and social capacities in order to achieve sustainable goals beyond 2015....

  5. Modelling the dynamics of two political parties in the presence of switching.

    Science.gov (United States)

    Nyabadza, F; Alassey, Tobge Yawo; Muchatibaya, Gift

    2016-01-01

    This paper generalizes the model proposed by Misra, by considering switching between political parties. In the model proposed, the movements of members from political party B to political party C and vice versa, are considered but the net movement is considered by assuming that [Formula: see text] (a constant), which implies that the movement of members is either from party B to party C or from party C to party B. In this paper we remodel these movements through switching functions to capture how individuals switch between parties. The results provide a more comprehensive synopsis of the dynamics between two political parties.

  6. Political determinants of social expenditures in Greece: an empirical analysis

    OpenAIRE

    Canikalp, Ebru; Unlukaplan, Ilter

    2017-01-01

    A view prominently expounded is that the interaction between the composition and the volume of public expenditures is directly affected by political, institutional, psephological and ideological indicators. A crucial component of public expenditures, social expenditures play an important role in the economy as they directly and indirectly affect the distribution of income and wealth. Social expenditures aim at reallocating income and wealth unequal distribution. These expenditures comprise ca...

  7. Maritime Piracy: Socio-Economic, Political, and Institutional Determinants

    OpenAIRE

    Thomas Gries; Margarete Redlin

    2014-01-01

    Over the last twenty years piracy has become an increasing threat. Yet there are only very few econometric studies that examine under which conditions this phenomenon arises. As the number of maritime piracy and armed robbery incidents is characterized as count data and exhibits overdispersion, we apply random-effects negative binomial regressions for a panel dataset covering the period 1991-2010. Our results indicate that poor socio-economic, political, and institutional conditions in the ho...

  8. Political determinants of electricity provision in small island developing states

    International Nuclear Information System (INIS)

    Boräng, Frida; Jagers, Sverker C.; Povitkina, Marina

    2016-01-01

    This paper approaches provision of affordable and reliable electricity in Small Island Developing States (SIDS) as a case of public good provision. It aims to contribute to our understanding of how regime type and the quality of implementing institutions within political systems affect the prerequisites for successful electrification in SIDS. More specifically, we analyse the independent and interdependent effects of level of democracy and control of corruption on per capita household electricity consumption in SIDS, using data from 34 SIDS over the period 1996–2009. The results show that although the independent effects of level of democracy and control of corruption are sensitive to model specification, these two factors do have an interdependent impact on per capita household electricity consumption: democratization has positive effects on provision of electricity to the general population only when there is a certain level of corruption control in place. The results imply a) that it is important for policy actors to acknowledge the interaction between regime type and the quality of implementing institutions, and b) when planning electrification projects in SIDS, it is necessary to have information about the social and political context in order to design the most effective projects. - Highlights: • Effects of political institutions on household electricity consumption in SIDS. • Electrification is seen as an example of public good provision. • Democracy has a positive impact on electricity consumption when corruption is low. • Electrification projects can gain from being sensitive to institutional context.

  9. Political determinants of progress in the MDGs in Sub-Saharan Africa.

    Science.gov (United States)

    Atti, Emma; Gulis, Gabriel

    2017-11-01

    Sub-Saharan Africa (SSA) lagged furthest behind in achieving targets for the millennium development goals (MDG). We investigate the hypothesis that its slow progress is influenced by political factors. Longitudinal data on three health MDG indicators: under-five mortality, maternal mortality and HIV prevalence rates were collated from 1990 to 2012 in 48 countries. Countries were grouped into geo-political and eco-political groups. Groupings were based on conflict trends in geographical regions and the International Monetary Fund's classification of SSA countries based on gross national income and development assistance respectively. Cumulative progress in each group was derived and main effects tested using ANOVA. Correlation analysis was conducted between political variables - POLITY 2, fragile state index (FSI), voter turnout rates, civil liberty scores (CLS) and the health variables. Our results suggest a significant main effect of eco-political and geo-political groups on some of the health variables. Political conflict as measured by FSI and political participation as measured by CLS were stronger predictors of slow progress in reducing under-five mortality rates and maternal mortality ratios. Our findings highlight the need for further research on political determinants of mortality in SSA. Cohesive effort should focus on strengthening countries' political, economic and social capacities in order to achieve sustainable goals beyond 2015.

  10. "Is political behavior a viable coping strategy to perceived organizational politics? Unveiling the underlying resource dynamics": Correction to Sun and Chen (2017).

    Science.gov (United States)

    2017-10-01

    Reports an error in "Is Political Behavior a Viable Coping Strategy to Perceived Organizational Politics? Unveiling the Underlying Resource Dynamics" by Shuhua Sun and Huaizhong Chen ( Journal of Applied Psychology , Advanced Online Publication, May 22, 2017, np). In the article, Table 1 contained a formatting error. Correlation coefficient values in the last four cells of column 6 were misplaced with correlation coefficient values in the last four cells of column 7. All versions of this article have been corrected. (The following abstract of the original article appeared in record 2017-22542-001.) We conduct a theory-driven empirical investigation on whether political behavior, as a coping strategy to perceived organizational politics, creates resource trade-offs in moderating the relationship between perceived organizational politics and task performance. Drawing on conservation of resources theory, we hypothesize that political behavior mitigates the adverse effect of perceived organizational politics on task performance via psychological empowerment, yet exacerbates its adverse effect on task performance via emotional exhaustion. Three-wave multisource data from a sample of 222 employees and their 75 supervisors were collected for hypothesis testing. Findings supported our hypotheses. Our study enhances understandings of the complex resource dynamics of using political behavior to cope with perceived organizational politics and highlights the need to move stress-coping research from a focus on the stress-buffering effect of coping on outcomes to a focus on the underlying competing resource dynamics. (PsycINFO Database Record (c) 2017 APA, all rights reserved).

  11. WHY THE SUDDEN CHANGE OF THE POLITICAL REGIME IS DETERMINING RISK IN ECONOMY AND SOCIETY?

    Directory of Open Access Journals (Sweden)

    Ion Lucian MEHEDINTI

    2014-06-01

    Full Text Available In this article the authors aim to gather an in-depth understanding of the evolution of manking throughout the history and its political regimes, and in the same time are analizing and determining the components of the social function that exercised a great influence on the stability and dynamics of the production and consumption, pointing out that any social organization that wants to remain rational should have as a primary objective the happiness of the people, that so called,“general happiness”, that could only be achieved through education, culture, raising people's moral and intellectual knowledge. Since any political system does not seek the general good, but the one of some persons or a specific group of people, there is only very little communion between them and the people or is entirely missing and for these reasons their reign won’t be long, because the people are always wanting a political change. This "social problem" occurred because of some significant social movements, socialist doctrines whose effects still persist in present times. The efforts of the profound thinkers and mankind throughout the history, with all the positive developments did not materialize in achieving a society in which wealth is equitably distributed, where the contributions of the people in getting them is equally shared that could satisfy the requirements and the needs of the majority members of the society. In all the transformations and society changes or the political regime of the state, the human being represented the base, with its unlimited evolution and thinking, and all of these were achieved in time and were given by a certain social environment. The human being can not be separated from its social environment. He is born to live in the society, but the freedom can not be unlimited of course. The history has shown that all the hasty attempts suffered the same fate and the only sustainable progress made by the people were those who came out

  12. Twitter-Based Analysis of the Dynamics of Collective Attention to Political Parties.

    Science.gov (United States)

    Eom, Young-Ho; Puliga, Michelangelo; Smailović, Jasmina; Mozetič, Igor; Caldarelli, Guido

    2015-01-01

    Large-scale data from social media have a significant potential to describe complex phenomena in the real world and to anticipate collective behaviors such as information spreading and social trends. One specific case of study is represented by the collective attention to the action of political parties. Not surprisingly, researchers and stakeholders tried to correlate parties' presence on social media with their performances in elections. Despite the many efforts, results are still inconclusive since this kind of data is often very noisy and significant signals could be covered by (largely unknown) statistical fluctuations. In this paper we consider the number of tweets (tweet volume) of a party as a proxy of collective attention to the party, identify the dynamics of the volume, and show that this quantity has some information on the election outcome. We find that the distribution of the tweet volume for each party follows a log-normal distribution with a positive autocorrelation of the volume over short terms, which indicates the volume has large fluctuations of the log-normal distribution yet with a short-term tendency. Furthermore, by measuring the ratio of two consecutive daily tweet volumes, we find that the evolution of the daily volume of a party can be described by means of a geometric Brownian motion (i.e., the logarithm of the volume moves randomly with a trend). Finally, we determine the optimal period of averaging tweet volume for reducing fluctuations and extracting short-term tendencies. We conclude that the tweet volume is a good indicator of parties' success in the elections when considered over an optimal time window. Our study identifies the statistical nature of collective attention to political issues and sheds light on how to model the dynamics of collective attention in social media.

  13. Twitter-Based Analysis of the Dynamics of Collective Attention to Political Parties.

    Directory of Open Access Journals (Sweden)

    Young-Ho Eom

    Full Text Available Large-scale data from social media have a significant potential to describe complex phenomena in the real world and to anticipate collective behaviors such as information spreading and social trends. One specific case of study is represented by the collective attention to the action of political parties. Not surprisingly, researchers and stakeholders tried to correlate parties' presence on social media with their performances in elections. Despite the many efforts, results are still inconclusive since this kind of data is often very noisy and significant signals could be covered by (largely unknown statistical fluctuations. In this paper we consider the number of tweets (tweet volume of a party as a proxy of collective attention to the party, identify the dynamics of the volume, and show that this quantity has some information on the election outcome. We find that the distribution of the tweet volume for each party follows a log-normal distribution with a positive autocorrelation of the volume over short terms, which indicates the volume has large fluctuations of the log-normal distribution yet with a short-term tendency. Furthermore, by measuring the ratio of two consecutive daily tweet volumes, we find that the evolution of the daily volume of a party can be described by means of a geometric Brownian motion (i.e., the logarithm of the volume moves randomly with a trend. Finally, we determine the optimal period of averaging tweet volume for reducing fluctuations and extracting short-term tendencies. We conclude that the tweet volume is a good indicator of parties' success in the elections when considered over an optimal time window. Our study identifies the statistical nature of collective attention to political issues and sheds light on how to model the dynamics of collective attention in social media.

  14. Remaking nuclear politics? The dynamics of subgovernment change

    International Nuclear Information System (INIS)

    Duffy, R.J.

    1991-01-01

    Changes in the politics of commercial nuclear power in the 1970s are examined. United by a conviction that the generation of electricity from fission was both necessary and desirable, the Atomic Energy Commission, the Joint Committee on Atomic Energy, and the nuclear power industry formed a classic subgovernment. Although such policy subsystems are presumed to be relatively autonomous and resistant to change, the convergence of several factors caused this subgovernment to collapse in the 1970s. It is shown that the scope of the conflict over nuclear power expanded as it became a highly visible and controversial issue that attracted the attention of a broad range of interest groups and government officials. The nuclear power issue became more visible because it was redefined as an environmental issue and then as an issue of public health and safety. It is also shown that the increasing salience of energy issues and the emergence of expert critics played a critical role in socializing the conflict and introducing new actors to the policy arena. It is further shown that changes in the institutions and processes of nuclear policy making help explain the collapse of the atomic subgovernment

  15. The politics of surveillance policy: UK regulatory dynamics after Snowden

    Directory of Open Access Journals (Sweden)

    Arne Hintz

    2016-09-01

    Full Text Available The revelations by NSA whistleblower Edward Snowden have illustrated the scale and extent of digital surveillance carried out by different security and intelligence agencies. The publications have led to a variety of concerns, public debate, and some diplomatic fallout regarding the legality of the surveillance, the extent of state interference in civic life, and the protection of civil rights in the context of security. Debates about the policy environment of surveillance emerged quickly after the leaks began, but actual policy change is only starting. In the UK, a draft law (Investigatory Powers Bill has been proposed and is currently discussed. In this paper, we will trace the forces and dynamics that have shaped this particular policy response. Addressing surveillance policy as a site of struggle between different social forces and drawing on different fields across communication policy research, we suggest eight dynamics that, often in conflicting ways, have shaped the regulatory framework of surveillance policy in the UK since the Snowden leaks. These include the governmental context; national and international norms; court rulings; civil society advocacy; technical standards; private sector interventions; media coverage; and public opinion. We investigate how state surveillance has been met with criticism by parts of the technology industry and civil society, and that policy change was required as a result of legal challenges, review commissions and normative interventions. However a combination of specific government compositions, the strong role of security agendas and discourses, media justification and a muted reaction by the public have hindered a more fundamental review of surveillance practices so far and have moved policy debate towards the expansion, rather than the restriction, of surveillance in the aftermath of Snowden.

  16. Political crisіs and compromise as the casual determinants in the process of political decisions making

    Directory of Open Access Journals (Sweden)

    Shkuro Anton Sergiyovich

    2013-12-01

    Full Text Available There is a risk of certain ineffective results in the system of political decisions making. That’s why we should pay a special attention to the criteria of political crisis evaluation. Today the problem of national politics lies only in an adequate raising of questions about the way out of the political crisis using the mechanism of compromise achieving. The article is about the fundamental role of the crisis and the compromise and about their influence on the formation of the strategic development of policy.

  17. Vested interests as drivers of political dynamics and change in China: Cases from the energy sector

    DEFF Research Database (Denmark)

    Delman, Jørgen

    in the perception of recent Chinese leaderships and what is the basis for assuming that such interests are detrimental to the maintenance of contemporary Communist Party rule? In a wider perspective, I am interested to examine how vested interests form ad why, how they exert their influence, how they play......Shifting Chinese leaders and leaderships have seen vested interests as a disruptive driver of political dynamics in China ever since the establishment of the People’s Republic in 1949. Obviously, the nature and dynamics of vested interests are in the eyes of the beholder. But given the fact...

  18. Evaluating the fermionic determinant of dynamical configurations

    International Nuclear Information System (INIS)

    Hasenfratz, Anna; Alexandru, Andrei

    2002-01-01

    We propose and study an improved method to calculate the fermionic determinant of dynamical configurations. The evaluation or at least stochastic estimation of the ratios of fermionic determinants is essential for a recently proposed updating method of smeared link dynamical fermions. This update creates a sequence of configurations by changing a subset of the gauge links by a pure gauge heat bath or over-relaxation step. The acceptance of the proposed configuration depends on the ratio of the fermionic determinants on the new and original configurations. We study this ratio as a function of the number of links that are changed in the heat bath update. We find that even when every link of a given direction and parity of a 10 fm 4 configuration is updated, the average of the determinant ratio is still close to one and with the improved stochastic estimator the proposed change is accepted with about 20% probability. This improvement suggests that the new updating technique can be efficient even on large lattices and could provide an updating method for dynamical overlap actions

  19. Simultaneous determination of protein structure and dynamics

    DEFF Research Database (Denmark)

    Lindorff-Larsen, Kresten; Best, Robert B.; DePristo, M. A.

    2005-01-01

    at the atomic level about the structural and dynamical features of proteins-with the ability of molecular dynamics simulations to explore a wide range of protein conformations. We illustrate the method for human ubiquitin in solution and find that there is considerable conformational heterogeneity throughout......We present a protocol for the experimental determination of ensembles of protein conformations that represent simultaneously the native structure and its associated dynamics. The procedure combines the strengths of nuclear magnetic resonance spectroscopy-for obtaining experimental information...... the protein structure. The interior atoms of the protein are tightly packed in each individual conformation that contributes to the ensemble but their overall behaviour can be described as having a significant degree of liquid-like character. The protocol is completely general and should lead to significant...

  20. Intra-Party Dynamics and the Political Transformation of Non-State Armed Groups

    Directory of Open Access Journals (Sweden)

    Véronique Dudouet

    2012-05-01

    Full Text Available Although non-state armed groups are primary stakeholders in contemporary political conflicts, there has been little research into their members’ perspectives on internal factors shaping radicalisation and de-radicalisation. State and international actors often assume that bringing rebel leaders to the negotiating table or “converting” them to peaceful politicians means weakening, splitting, or dismantling militant structures. This paper re-evaluates those assumptions in the light of rebel leaders’ own accounts of internal organisational dynamics before, during, and after political conflicts and peace settlements. Participatory action research with “insider experts” from armed movements in Northern Ireland, Kosovo, Nepal, Aceh, El Salvador, Colombia, and South Africa reveals insiders’ analysis of leadership and organisational dynamics during armed conflict and political talks and highlights the rational decision-making process whereby proactive leaders constantly (reassess and adjust their tactics (from unarmed to armed and vice versa as the strategic environment evolves. Horizontal and vertical communication between members is critical for enabling collective ownership of transformation processes from violent insurgency to peaceful transition and preventing internal splits and disaffection during peace negotiations. The claim that rebel organisations should be dismantled as quickly as possible during peace processes is found to be dubious, highlighting instead the importance of retaining cohesive coordination and communication structures during volatile post-war transitions.

  1. Office Politics

    Science.gov (United States)

    Storm, Paula; Kelly, Robert; deVries, Susann

    2008-01-01

    People and organizations are inherently political. Library workplace environments have zones of tension and dynamics just like any corporation, often leading to the formation of political camps. These different cliques influence productivity and work-related issues and, at worst, give meetings the feel of the Camp David negotiations. Politics are…

  2. System dynamics modeling of social/political factors in nuclear power plant operations

    International Nuclear Information System (INIS)

    Hansen, K.F.; Turek, M.G.; Eubanks, C.K.

    1995-01-01

    The safety and performance of nuclear power plants are a function of many technical factors such as initial design, service and maintenance programs, and utility investment in improvements. Safety and performance are also a function of the social/political influences that affect requirements on personnel, practices and procedures, and resource availability. This paper describes a process for constructing models of the social/political influences on plant operations using the system dynamics technique. The model incorporates representation of internal utility actions and decisions as affected by external factors such as public opinion, intervenor actions, safety and economic regulation, and the financial community. The feedback between external agents and plant performance is explicitly modeled. The resulting model can be used to simulate performance under a variety of different external and internal policy choices. In particular, the model can be used to study means of improving performance in response to externally imposed regulations

  3. The Influence of Dynamics of Export on the Level of Political Stability (on Example of Russia

    Directory of Open Access Journals (Sweden)

    Владимир Геннадьевич Иванов

    2012-09-01

    Full Text Available In the given article there are analyzed the mechanisms and patterns of the influence of dynamics of external economic parameters of a country on the level of stability of its political regime. The author supposes that the most valid economic indicator and predictor of instability is volume of exports. Export possesses so much socio-political importance not only because of its role as an engine of economy but also as a vital factor of external economic durability of a country. The analysis of the discovered regularity is carried out on the example of the three periods of modern Russian history, two of which resulted in revolutions: 1 the period of 1905-1917; 2 1985-1991; 3 the modern period (1991-2012.

  4. SOCIOECONOMIC, INSTITUTIONAL & POLITICAL DETERMINANTS OF HUMAN RIGHTS ABUSES: A SUBNATIONAL STUDY OF INDIA, 1993 – 2002

    OpenAIRE

    Vadlamannati, Krishna Chaitanya

    2008-01-01

    We conduct an econometric analysis of socioeconomic, institutional and political factors determining government respect for human rights within India. Using time series cross-sectional data for 28 Indian states for the period 1993 – 2002, we find that internal threat poised by number of social violence events, presence of civil war and riot hit disturbed areas are strongly associated with human rights abuses. Amongst socioeconomic factors, ‘exclusive’ economic growth, ‘uneven’ development, po...

  5. Political and social determinants of life expectancy in less developed countries: a longitudinal study

    Directory of Open Access Journals (Sweden)

    Lin Ro-Ting

    2012-01-01

    Full Text Available Abstract Background This study aimed to examine the longitudinal contributions of four political and socioeconomic factors to the increase in life expectancy in less developed countries (LDCs between 1970 and 2004. Methods We collected 35 years of annual data for 119 LDCs on life expectancy at birth and on four key socioeconomic indicators: economy, measured by log10 gross domestic product per capita at purchasing power parity; educational environment, measured by the literacy rate of the adult population aged 15 years and over; nutritional status, measured by the proportion of undernourished people in the population; and political regime, measured by the regime score from the Polity IV database. Using linear mixed models, we analyzed the longitudinal effects of these multiple factors on life expectancy at birth with a lag of 0-10 years, adjusting for both time and regional correlations. Results The LDCs' increases in life expectancy over time were associated with all four factors. Political regime had the least influence on increased life expectancy to begin with, but became significant starting in the 3rd year and continued to increase, while the impact of the other socioeconomic factors began strong but continually decreased over time. The combined effects of these four socioeconomic and political determinants contributed 54.74% - 98.16% of the life expectancy gains throughout the lag periods of 0-10 years. Conclusions Though the effect of democratic politics on increasing life expectancy was relatively small in the short term when compared to the effects of the other socioeconomic factors, the long-term impact of democracy should not be underestimated.

  6. A Trigger or a Muffler? - Examining the Dynamics of Crosscutting Exposure and Political Expression in Online Social Media

    Directory of Open Access Journals (Sweden)

    Soo Young Bae

    2013-11-01

    Full Text Available This study explores the potential of online social media to serve as a sphere for political discourse and investigates the extent to which everyday uses of online social networking sites can expose citizens to politically diverse viewpoints.  In addition, this study asks whether such crosscutting exposure in online social networks will act as a trigger or a muffler for political expression – that is, whether exposure political difference will stimulate or discourage political discussions.  With analyses of a sample of online social networking site users in the context of the 2012 presidential election in South Korea, this study explicates the link between crosscutting exposure and citizens’ political expressions in social media.  Results reveal that contrary to the predictions in previous literature, exposure to politically incongruent viewpoints in online social networking sites does not seem to undermine users’ expressive behaviors but instead positively contribute to political expression.  In addition, this study shows the significant role of citizens’ perceptions of candidate support in their own networks, and illustrates that the dynamics of political expression differ significantly depending on the users’ age.

  7. Determinants of Welfare Dynamics in Rural Nicaragua

    DEFF Research Database (Denmark)

    Jakobsen, Kristian Thor

    2011-01-01

    This article explores the determinants of poverty movements in rural Nicaragua by introducing a bivariate probate model, making it possible to treat the initial state of poverty as endogenous and thus avoiding introducing selection bias. The results indicate that this is relevant when exploring...... welfare dynamics in rural Nicaragua, as initially poor households face a higher probability of being poor in the subsequent period compared with non-poor households. It is also found that household composition, access to non-agriculture wage income and ownership of productive assets are important factors...

  8. Cell fate determination dynamics in bacteria

    Science.gov (United States)

    Kuchina, Anna; Espinar, Lorena; Cagatay, Tolga; Garcia-Ojalvo, Jordi; Suel, Gurol

    2010-03-01

    The fitness of an organism depends on many processes that serve the purpose to adapt to changing environment in a robust and coordinated fashion. One example of such process is cellular fate determination. In the presence of a variety of alternative responses each cell adopting a particular fate represents a ``choice'' that must be tightly regulated to ensure the best survival strategy for the population taking into account the broad range of possible environmental challenges. We investigated this problem in the model organism B.Subtilis which under stress conditions differentiates terminally into highly resistant spores or initiates an alternative transient state of competence. The dynamics underlying cell fate choice remains largely unknown. We utilize quantitative fluorescent microscopy to track the activities of genes involved in these responses on a single-cell level. We explored the importance of temporal interactions between competing cell fates by re- engineering the differentiation programs. I will discuss how the precise dynamics of cellular ``decision-making'' governed by the corresponding biological circuits may enable cells to adjust to diverse environments and determine survival.

  9. SUFFERING FROM ‘POLITICAL EXHAUSTION’: The Dynamics of Nahdlatul Ulama (NU in Indonesia’s Political Arena

    Directory of Open Access Journals (Sweden)

    Ahmad Mansur

    2009-06-01

    Full Text Available Book Review:Book title:Nahdlatul Ulama and the Struggle for Power within Islam and Politics in IndonesiaAuthor:Robin BushNo. of Pages:xx + 236Year:2009Publisher:The Institute of Southeast Asian Studies, Singapore

  10. Determining gastric cancer resectability by dynamic MDCT

    Energy Technology Data Exchange (ETDEWEB)

    Pan, Zilai; Zhang, Huan; Du, Lianjun; Ding, Bei; Song, Qi; Ling, Huawei; Huang, Baisong; Chen, Kemin [Jiaotong University, Department of Radiology, Shanghai (China); Yan, Chao [Jiaotong University, Department of Surgery, Shanghai (China)

    2010-03-15

    Multi-detector row CT (MDCT) has been widely used to detect primary lesions and to evaluate TNM staging. In this study we evaluated the accuracy of dynamic MDCT in the preoperative determination of the resectability of gastric cancer. MDCT was used to image 350 cases of gastric cancer diagnosed by biopsy before surgery. MDCT findings regarding TNM staging and resectability were correlated with surgical and pathological findings. The accuracy of MDCT for staging gastric cancer was high, especially for tumour stage T1 (94.3%), lymph node stage N2 (87.3%), and for predicting distant metastases (>96.6%). When resectability was considered to be the outcome, the total accuracy of MDCT was 87.4%, sensitivity was 89.7% and specificity was 76.7%. Results showed high sensitivity for identifying peritoneal seeding (90.0%) and for predicting liver metastasis (80.0%). Dynamic enhanced MDCT is useful for TNM staging of gastric cancers and for predicting tumour respectability preoperatively. (orig.)

  11. Determining gastric cancer resectability by dynamic MDCT

    International Nuclear Information System (INIS)

    Pan, Zilai; Zhang, Huan; Du, Lianjun; Ding, Bei; Song, Qi; Ling, Huawei; Huang, Baisong; Chen, Kemin; Yan, Chao

    2010-01-01

    Multi-detector row CT (MDCT) has been widely used to detect primary lesions and to evaluate TNM staging. In this study we evaluated the accuracy of dynamic MDCT in the preoperative determination of the resectability of gastric cancer. MDCT was used to image 350 cases of gastric cancer diagnosed by biopsy before surgery. MDCT findings regarding TNM staging and resectability were correlated with surgical and pathological findings. The accuracy of MDCT for staging gastric cancer was high, especially for tumour stage T1 (94.3%), lymph node stage N2 (87.3%), and for predicting distant metastases (>96.6%). When resectability was considered to be the outcome, the total accuracy of MDCT was 87.4%, sensitivity was 89.7% and specificity was 76.7%. Results showed high sensitivity for identifying peritoneal seeding (90.0%) and for predicting liver metastasis (80.0%). Dynamic enhanced MDCT is useful for TNM staging of gastric cancers and for predicting tumour respectability preoperatively. (orig.)

  12. Individual and social determinants of obesity in strategic health messages: Interaction with political ideology.

    Science.gov (United States)

    Young, Rachel; Hinnant, Amanda; Leshner, Glenn

    2016-07-01

    Antiobesity health communication campaigns often target individual behavior, but these ads might inflate the role of individual responsibility at the expense of other health determinants. In a 2 × 2 full-factorial, randomized, online experiment, 162 American adults viewed antiobesity advertisements that varied in emphasizing social or individual causation for obesity through text and images. Locus for attribution of responsibility for obesity causes and solutions was measured, as was how these responses were moderated by political ideology. Participants who viewed text emphasizing individual responsibility were less likely to agree that genetic factors caused obesity. Conservative participants who viewed images of overweight individuals were less likely than liberal participants to agree that social factors were responsible for causing obesity. In addition, among conservative participants who viewed images of fast food versus images of overweight individuals, agreement that the food industry bore some responsibility mediated support for policy solutions to obesity. These findings, among others, demonstrate that awareness of multilevel determinants of health outcomes can be a precursor of support for policy solutions to obesity among those not politically inclined to support antiobesity policy. In addition, stigmatizing images of overweight individuals in antiobesity campaigns might overemphasize the role of individual behavior in obesity at the expense of other factors.

  13. LOCAL POLITICAL DYNAMICS IN THE GENERAL ELECTION DIRECTLY CONDUCTED TO VOTE FOR DISTRICT HEADS (PILKADA IN BADUNG REGENCY IN 2005

    Directory of Open Access Journals (Sweden)

    Anak Agung Gede Oka Wisnumurti

    2012-11-01

    Full Text Available The general election directly conducted to vote for the regent and vice regent(Pemilihan Kepala Daerah, abbreviated to Pilkada by the people in Badung Regency in2005 was the first one. The people’s direct involvement in the local political life movedhighly dynamically. The struggle for power by various strengths affected variousdimensions of the people’s lives; therefore, it is interesting to investigate the localpolitical dynamics in the Pilkada directly conducted in Badung Regency in 2005 in theperspective of cultural studies. There are three problems formulated in this study. Theyare (1 what was the dynamics of the Pilkada directly conducted in Badung Regency in2005 like?; (2 how the relation of strengths affected the local political dynamics in thePilkada directly conducted in Badung Regency in 2005?; (3 what were the implicationsand meanings of the local political dynamics of the Pilkada directly conducted in BadungRegency in 2005?The results of the study show that fluctuative changes took place continuouslywith regard to the form and functions of societal structure. Culturally, the people’sideology changed from being mono centric into being multi centric. The relation ofstrengths became segmented into three main strengths forming a new formation ofstrength referred to as trisula. This led to an institutional configuration, differentiation ofpower and locality sedimentation, and provided meanings to competition and tolerance,emancipatory, political comodification, adaptive leadership and local democratic culturalstrengthening.

  14. Health care and ideology: a reconsideration of political determinants of public healthcare funding in the OECD.

    Science.gov (United States)

    Herwartz, Helmut; Theilen, Bernd

    2014-02-01

    In this article, we examined if partisan ideology and electoral motives influence public healthcare expenditure (HCE) in countries of the Organization for Economic Cooperation and Development. We distinguished between the effects on the growth of the expenditures and its adjustment to violations of a long-run equilibrium linking HCE with macroeconomic and demographic trends. Regarding the influence of partisan ideology, we found that if governments are sufficiently long in power, right-wing governments spend less on public health than their left-wing counterparts. Furthermore, if a right-wing party governs without coalition partners, it responds more strongly to deviations from the long-run HCE equilibrium than left-wing governments. With regard to electoral motives, we found that health expenditure increases in years of elections. Independent of their partisan ideology, single-party (minority) governments induce higher (lower) growth of public HCE. Each of these political factors by its own may increase (decrease) HCE growth by approximately one percentage point. Given an average annual growth of HCE of approximately 4.1%, political factors turn out to be important determinants of trends in public HCE. Copyright © 2013 John Wiley & Sons, Ltd.

  15. A surgical intervention for the body politic: Generation Squeeze applies the Advocacy Coalition Framework to social determinants of health knowledge translation.

    Science.gov (United States)

    Kershaw, Paul; Swanson, Eric; Stucchi, Andrea

    2017-06-16

    The World Health Organization Commission on the Social Determinants of Health (SDoH) observes that building political will is central to all its recommendations, because governments respond to those who organize and show up. Since younger Canadians are less likely to vote or to organize in between elections, they are less effective at building political will than their older counterparts. This results in an age gap between SDoH research and government budget priorities. Whereas Global AgeWatch ranks Canada among the top countries for aging, UNICEF ranks Canada among the least generous OECD (Organisation for Economic Co-operation and Development) countries for the generations raising young children. A surgical intervention into the body politic. Guided by the "health political science" literature, the intervention builds a non-profit coalition to perform science-based, non-partisan democratic engagement to increase incentives for policy-makers to translate SDoH research about younger generations into government budget investments. All four national parties integrated policy recommendations from the intervention into their 2015 election platforms. Three referred to, or consulted with, the intervention during the election. The intervention coincided with all parties committing to the single largest annual increase in spending on families with children in over a decade. Since many population-level decisions are made in political venues, the concept of population health interventions should be broadened to include activities designed to mobilize SDoH science in the world of politics. Such interventions must engage with the power dynamics, values, interests and institutional factors that mediate the path by which science shapes government budgets.

  16. Worldview implications of believing in free will and/or determinism: politics, morality, and punitiveness.

    Science.gov (United States)

    Carey, Jasmine M; Paulhus, Delroy L

    2013-04-01

    We used the FAD-Plus to investigate the association of free will belief (FWB) with political orientation, moral attitudes, and punitiveness. Other goals included (a) confirming the independence of believing in free will and determinism and (b) contrasting scientific determinism with fatalistic determinism. Three studies were conducted via online questionnaires. Studies 1 and 3 recruited undergraduate students: Study 1, N = 220, M(age) = 20.96; Study 3, N = 161, M(age) = 20.2. Study 2 participants were recruited from a broader community sample: N = 253, M(age) = 34.29. Studies 1 and 2 found that FWB is associated with traditional conservative attitudes, including authoritarianism, religiosity, and belief in a just world. Study 2 replicated this pattern but narrowed the religiosity link to the intrinsic style. In Study 3, FWB was associated with binding moral foundations and retributive punishment of hypothetical criminals. Belief in free will is associated with a conservative worldview, including such facets as authoritarianism, religiosity, punitiveness, and moralistic standards for judging self and others. The common element appears to be a strong sense of personal responsibility. Evidence for distinct correlates of scientific and fatalistic determinism reinforces the need for treating them separately. © 2012 Wiley Periodicals, Inc.

  17. [Political psychology].

    Science.gov (United States)

    Resch, Mária; Bella, Tamás

    2013-04-21

    In Hungary one can mostly find references to the psychological processes of politics in the writings of publicists, public opinion pollsters, philosophers, social psychologists, and political analysts. It would be still important if not only legal scientists focusing on political institutions or sociologist-politologists concentrating on social structures could analyse the psychological aspects of political processes; but one could also do so through the application of the methods of political psychology. The authors review the history of political psychology, its position vis-à-vis other fields of science and the essential interfaces through which this field of science, which is still to be discovered in Hungary, connects to other social sciences. As far as its methodology comprising psycho-biographical analyses, questionnaire-based queries, cognitive mapping of interviews and statements are concerned, it is identical with the psychiatric tools of medical sciences. In the next part of this paper, the focus is shifted to the essence and contents of political psychology. Group dynamics properties, voters' attitudes, leaders' personalities and the behavioural patterns demonstrated by them in different political situations, authoritativeness, games, and charisma are all essential components of political psychology, which mostly analyses psychological-psychiatric processes and also involves medical sciences by relying on cognitive and behavioural sciences. This paper describes political psychology, which is basically part of social sciences, still, being an interdisciplinary science, has several ties to medical sciences through psychological and psychiatric aspects.

  18. Determinants of Political Science Faculty Salaries at the University of California

    Science.gov (United States)

    Grofman, Bernard

    2009-01-01

    Combining salary data for permanent non-emeritus faculty at seven departments of political science within the University of California system with lifetime citation counts and other individual-level data from the Masuoka, Grofman, and Feld (2007a) study of faculty at Ph.D.-granting political science departments in the United States, I analyze…

  19. Low Membership in Czech Political Parties: Party Strategy or Structural Determinants?

    Czech Academy of Sciences Publication Activity Database

    Linek, Lukáš; Pecháček, Š.

    2007-01-01

    Roč. 23, č. 2 (2007), s. 259-275 ISSN 1352-3279 R&D Projects: GA MPS 1J004/04-DP1 Institutional research plan: CEZ:AV0Z70280505 Keywords : political parties * party membership * antiparty sentiments * party organization Subject RIV: AD - Politology ; Political Sciences

  20. The Dynamics of Factions and Consensus in Chinese Politics: A Model and Some Propositions.

    Science.gov (United States)

    1980-07-01

    conformity and group orienta- tion, see Richard W. Wilson, Learning to be Chinese: The Political Socialization of Children in Taiwan, M.IT. Press...cadres often tended to take on the factional orientations of their parents. To the e~xtent that this is the case in China, a pattern of political ... socialization may be emerging that would not be too different from that of other societies in which chil- dren tend to identify with their parents’ political

  1. Political dynamics promoting the incremental regulation of secondhand smoke: a case study of New South Wales, Australia

    Directory of Open Access Journals (Sweden)

    Chapman Simon

    2006-07-01

    Full Text Available Abstract Background The history of governmental responses to the accumulation of scientific evidence about the harms of secondhand smoke (SHS presents an intriguing case study of incremental public health policy development. Australia has long been considered a world-leader in progressive tobacco control policies, but in the last decade has fallen behind other jurisdictions in introducing SHS legislation that protects all workers. Bars, clubs and pubs remain the only public indoor spaces where smoking is legally permitted, despite SHS exposure in the hospitality industry being higher and affecting more people than in any other setting after domestic exposure. This paper examines the political dynamics that have shaped this incremental approach to SHS. Methods In-depth interviews with 21 key stakeholders in the state of New South Wales (NSW, including politicians, their advisors, health officials and tobacco control advocates, were conducted and subjected to thematic content analysis. Interviewees' comments provided insights into the dynamics surrounding the debates and outcomes of SHS legislative attempts and the current political environment, and about how to progress SHS legislation. Results SHS restrictions have been delayed by several broad factors: the influence of industry groups successfully opposing regulation; issue wear-out; and political perceptions that there is not a salient constituency demanding that smoking be banned in bars and clubs. Interviewees also provided suggestions of strategies that advocates might utilise to best overcome the current political inertia of incremental compromises and achieve timely comprehensive smoking bans. Conclusion Advocates concerned to shorten the duration of incremental endgames must continue to insist that governments address SHS fundamentally as a health issue rather than making political concessions to industry groups, and should broaden and amplify community voices calling on governments to

  2. Analysis of the PPBE Process in the Current Dynamic Political Environment

    Science.gov (United States)

    2008-06-01

    provides a comparative analysis using the Political, Economic , Socio- Cultural, Technological, Ecological and Legal ( PESTEL ) Analysis model of the...37 A. PESTEL ANALYSIS OF THE 1960/1970 ERA...44 B. PESTEL ANALYSIS OF THE POST 9/11 ENVIRONMENT..................45 1. Political

  3. Theory and methodology of social, political and economic processes risks determining in different countries of the world

    Directory of Open Access Journals (Sweden)

    Yashina Nadezhda, I.

    2015-06-01

    Full Text Available The study deals with the problems of the theory and methodology of social, political and economic processes risks in different countries with relative indicators of the socio-economic development level, as well as the size and condition of the public debt. Developed by the authors the methodology of determining the risks of social, political and economic processes of public policy around the world revealed close relationship between socio-economic situation of the countries and their public debt. Within the framework of this methodology two groups of factors characterizing the socio-political and economic processes in the country are being developed. After that each exponent and indicator are being processed, using expert procedures. Maximum statutory values for tentatively referenced countries with effective and ineffective government policies are identified. Then standardization (specification and definition of integral (generalized indexes of socio-political and economic processes in the country are taking place. After that the ranking of countries by aggregated standardized ratio is arranged, taking into account the significance of the developed indicators. The final phase of implementation methodology is identifying risks of social, political and economic processes of public policy around the world. This is the ranking of countries by ratio of stability in public policy (stability of economic and socio-political processes in the country. As the result of implementation methodology the following output was received: what really makes a difference is not the amount of the country's debt, but how effectively it manages this debt, whether it has a goal to improve social and economic indicators. Practical testing methodology has proven that studied indicators fully characterize the development of the countries, their political, social and economic situation on the world stage.

  4. How does political instability affect economic growth?

    OpenAIRE

    Aisen, Ari; Veiga, Francisco José

    2011-01-01

    The purpose of this paper is to empirically determine the effects of political instability on economic growth. Using the system-GMM estimator for linear dynamic panel data models on a sample covering up to 169 countries, and 5-year periods from 1960 to 2004, we find that higher degrees of political instability are associated with lower growth rates of GDP per capita. Regarding the channels of transmission, we find that political instability adversely affects growth by lowering the rates of pr...

  5. Operational performance of the Bangladesh rural electrification program and its determinants with a focus on political interference

    International Nuclear Information System (INIS)

    Taniguchi, Mariko; Kaneko, Shinji

    2009-01-01

    This article tries to quantitatively capture the effect of political intervention on the operational performance of the Bangladesh Rural Electrification Program (REP). Firstly, efficiency changes over the last 15 years of rural electric cooperatives in the REP are examined using data envelopment analysis (DEA). Then, the critical determinants of the efficiency changes including political indicator are identified with an application of the Tobit model. Results from the DEA analysis show the overall efficiency score, on a scale of zero to one, changes in the 0.856-0.929 range in 15 years, with two turnaround points in 1996 and 2001. These are the years that the national elections were held. The results also find a gap between the efficient rural electric cooperatives and the inefficient rural electric cooperatives. The results of the Tobit model imply that political power has a negative impact on efficiency.

  6. Political psychology.

    Science.gov (United States)

    Stone, Susanna; Johnson, Kate M; Beall, Erica; Meindl, Peter; Smith, Benjamin; Graham, Jesse

    2014-07-01

    Political psychology is a dynamic field of research that offers a unique blend of approaches and methods in the social and cognitive sciences. Political psychologists explore the interactions between macrolevel political structures and microlevel factors such as decision-making processes, motivations, and perceptions. In this article, we provide a broad overview of the field, beginning with a brief history of political psychology research and a summary of the primary methodological approaches in the field. We then give a more detailed account of research on ideology and social justice, two topics experiencing a resurgence of interest in current political psychology. Finally, we cover research on political persuasion and voting behavior. By summarizing these major areas of political psychology research, we hope to highlight the wide variety of theoretical and methodological approaches of cognitive scientists working at the intersection of psychology and political science. WIREs Cogn Sci 2014, 5:373-385. doi: 10.1002/wcs.1293 For further resources related to this article, please visit the WIREs website. The authors have declared no conflicts of interest for this article. © 2014 John Wiley & Sons, Ltd.

  7. Dynamic Capital Structure: Dynamics, Determinants and Speed of Adjustment

    NARCIS (Netherlands)

    Tamirat, A.S.; Trujillo Barrera, A.A.; Pennings, J.M.E.

    2017-01-01

    The corporate finance literature has focused on explaining the determinants of firms target capital structure and speed of adjustment using the well-established theories such as pecking order, signaling and trade-off theories. However, less attention has been paid to understanding the financing

  8. Lev Vygotsky between two revolutions: on the political self-determination of the scientist

    Directory of Open Access Journals (Sweden)

    Vladimir S. Sobkin

    2016-09-01

    Full Text Available The paper presented texts of the three previously unknown Lvygotsky’s journal notes and comments on them. These texts were published in mid-July and early September 1917 in the Jewish weekly «New Path» under the pseudonym «L.S.» and «W». In these texts, Lev Vygotsky describes the features of the political behaviour of the Jewish population in connection with the revolutionary events in Russia. On the one hand, a clear discrepancy between the activation of party work and political rhetoric is mentioned, and on the other hand, reduction of the significance of Jewish communal life is highlighted. As a key characteristic of social and psychological wellbeing of the Jewish population Vygotsky singles out absenteeism, i.e. the lack of interest in politics. Eventually the scientist captures the increase in uncertainty in the Jewish environment and fear of the future political, social and economic reforms in Russia. In the comments on Vygotsky notes, there are definitions relating to the various features of the activities of the Jewish political parties and public organizations, information about various policy documents and staff characterized by social and political situation before the elections in the Consituent Assembly (Uchreditel’noe Sobranie. Particular attention is paid to the analysis of stylistic and structural features of the commented text construction. By implicit quoting the relationship between Vygotsky’s texts and the works of other authors is identified. Particular attention is paid to the author’s attitude to religious texts, which allows to select a characteristic feature of the «double vision» of real events of the revolution against the background of the Jewish history. The comments help to single out features of the political identity of the young Lev Vygotsky in the period between the two revolutions, which is important to study his biography and understanding of his world view.

  9. Book Review: Jandl, Thomas, Vietnam in the Global Economy – The Dy-namics of Integration, Decentralization and Contested Politics

    Directory of Open Access Journals (Sweden)

    Adam Fforde

    2014-01-01

    Full Text Available Book Review of the Monograph: Thomas Jandl (2013, Vietnam in the Global Economy – The Dynamics of Integration, Decentralization and Contested Politics. Plymouth: Lexington Books, ISBN 978-0-7391-7786-0, 312 pages

  10. Obama cares about visuo-spatial attention: perception of political figures moves attention and determines gaze direction.

    Science.gov (United States)

    Mills, Mark; Smith, Kevin B; Hibbing, John R; Dodd, Michael D

    2015-02-01

    Processing an abstract concept such as political ideology by itself is difficult but becomes easier when a background situation contextualizes it. Political ideology within American politics, for example, is commonly processed using space metaphorically, i.e., the political "left" and "right" (referring to Democrat and Republican views, respectively), presumably to provide a common metric to which abstract features of ideology can be grounded and understood. Commonplace use of space as metaphor raises the question of whether an inherently non-spatial stimulus (e.g., picture of the political "left" leader, Barack Obama) can trigger a spatially-specific response (e.g., attentional bias toward "left" regions of the visual field). Accordingly, pictures of well-known Democrats and Republicans were presented as central cues in peripheral target detection (Experiment 1) and saccadic free-choice (Experiment 2) tasks to determine whether perception of stimuli lacking a direct association with physical space nonetheless induce attentional and oculomotor biases in the direction compatible with the ideological category of the cue (i.e., Democrat/left and Republican/right). In Experiment 1, target detection following presentation of a Democrat (Republican) was facilitated for targets appearing to the left (right). In Experiment 2, participants were more likely to look left (right) following presentation of a Democrat (Republican). Thus, activating an internal representation of political ideology induced a shift of attention and biased choice of gaze direction in a spatially-specific manner. These findings demonstrate that the link between conceptual processing and spatial attention can be totally arbitrary, with no reference to physical or symbolic spatial information. Published by Elsevier B.V.

  11. Education or Personality Traits and Intelligence as Determinants of Political Knowledge?

    DEFF Research Database (Denmark)

    Hebbelstrup Rye Rasmussen, Stig

    2016-01-01

    Recently the causal influence of education on political knowledge has been questioned. Rather, pre-adult predispositions such as personality traits and intelligence are proposed as the real causal agents. This article investigates in two studies whether education retains its explanatory power...... on political knowledge when personality traits and intelligence are taken into account. One study draws on a draftee sample and has excellent measures of both personality traits and intelligence; the other study draws on a representative sample and has excellent measures of personality traits. Openness...

  12. Personality and Self-regulation as Determinants of Rational Decision Making in a Political Voting Situation

    Directory of Open Access Journals (Sweden)

    Tatiana A. Indina

    2009-01-01

    Full Text Available The association of self-regulation and personality factors with rational decision making was investigated using an experimental model of political voting. The results revealed different sets of personality characteristics for rational and emotional voters. A self-regulation/personality typology of decision making was then constructed, and traits representing self-regulation, cognition, and personality were examined as predispositions toward rational decision making. As a result, specific connections among these variables were uncovered, through which the primary role of the conscious self-regulation system in the management of rational decision making in a political voting context was established.

  13. Political learning among youth

    DEFF Research Database (Denmark)

    Solhaug, Trond; Kristensen, Niels Nørgaard

    2014-01-01

    This article focuses on students’ first political learning and explores the research question, what dynamic patterns of political learning can be explored among a selection of young, diverse Danish students’ first political interests? The authors use theories of learning in their analytical......, but are active constructors of their political life. Their emotions and social environment are highly important for their political orientation. It is recommended that further research focus on dynamic learning and on arenas for political learning rather than on “single agent studies.” Recommendations...

  14. The political solidarity model of social change: dynamics of self-categorization in intergroup power relations.

    Science.gov (United States)

    Subasic, Emina; Reynolds, Katherine J; Turner, John C

    2008-11-01

    Social and political change involves a challenge to the status quo in intergroup power relations. Traditionally, the social psychology of social change has focused on disadvantaged minority groups collectively challenging the decisions, actions, and policies of those in positions of established authority. In contrast, this article presents a political solidarity model of social change that explores the process by which members of the majority challenge the authority in solidarity with the minority. It is argued that political solidarity as a social change process involves a contest between the authority and the minority over the meaning of a shared (higher order) identity with the majority. When identity ceases to be shared with the authority and becomes shared with the minority, majority challenge to authority in solidarity with the minority becomes possible. The model's contributions to existing social psychological approaches to social change are also discussed.

  15. The Socio-political Dynamics of the Citizen’s Revolution. Political Work as the ‘Art of Serving’ that Separates and Unites State and Society

    Directory of Open Access Journals (Sweden)

    José Antonio Villarreal Velásquez

    2018-01-01

    Full Text Available This article analyses the relations between politics and society during the so-called citizen’s revolution in Ecuador. Drawing on ethnographic research focused on political brokerage or the ‘art of serving’, the article analyses the particularities of political work by analysing the linkages and tensions that are constructed between the population of a suburb of the city of Guayaquil, the members of the governing political party of the Citizen’s Revolution, Movimiento Patria Altiva i Soberana (Alianza PAIS and State functionaries. Meetings of political socialization and sectorial events- understood as institutional rituals- are taken as scenes in which to observe the interactions and the public performance of the protagonists of the pre-dominant political party in contemporary Ecuador.

  16. Academic Literacies: Providing a Space for the Socio-Political Dynamics of EAP

    Science.gov (United States)

    Turner, Joan

    2012-01-01

    This article highlights the potential of academic literacies as a theoretical framework for EAP, encompassing not only work on texts, but the wider, socio-political, geopolitical, and institutional contexts and practices in and with which EAP operates. An academic literacies approach foregrounds social practices, and one particular practice, that…

  17. Personality and Self-regulation as Determinants of Rational Decision Making in a Political Voting Situation

    OpenAIRE

    Tatiana A. Indina; Varvara I. Morosanova

    2009-01-01

    The association of self-regulation and personality factors with rational decision making was investigated using an experimental model of political voting. The results revealed diff erent sets of personality characteristics for rational and emotional voters. A self-regulation/personality typology of decision making was then constructed, and traits representing self-regulation, cognition, and personality were examined as predispositions toward rational decision making. As a result, specifi c co...

  18. Instability of political preferences and the role of mass media: a dynamical representation in a quantum framework.

    Science.gov (United States)

    Khrennikova, Polina; Haven, Emmanuel

    2016-01-13

    We search to devise a new paradigm borrowed from concepts and mathematical tools of quantum physics, to model the decision-making process of the US electorate. The statistical data of the election outcomes in the period between 2008 and 2014 is analysed, in order to explore in more depth the emergence of the so-called divided government. There is an increasing urge in the political literature which indicates that preference reversal (strictly speaking the violation of the transitivity axiom) is a consequence of the so-called non-separability phenomenon (i.e. a strong interrelation of choices). In the political science literature, non-separable behaviour is characterized by a conditioning of decisions on the outcomes of some issues of interest. An additional source of preference reversal is ascribed to the time dynamics of the voters' cognitive states, in the context of new upcoming political information. As we discuss in this paper, the primary source of political information can be attributed to the mass media. In order to shed more light on the phenomenon of preference reversal among the US electorate, we accommodate the obtained statistical data in a classical probabilistic (Kolmogorovian) scheme. Based on the obtained results, we attribute the strong ties between the voters non-separable decisions that cannot be explained by conditioning with the Bayes scheme, to the quantum phenomenon of entanglement. Second, we compute the degree of interference of voters' belief states with the aid of the quantum analogue of the formula of total probability. Lastly, a model, based on the quantum master equation, to incorporate the impact of the mass media bath is proposed. © 2015 The Author(s).

  19. A stochastic phase-field model determined from molecular dynamics

    KAUST Repository

    von Schwerin, Erik; Szepessy, Anders

    2010-01-01

    The dynamics of dendritic growth of a crystal in an undercooled melt is determined by macroscopic diffusion-convection of heat and by capillary forces acting on the nanometer scale of the solid-liquid interface width. Its modelling is useful for instance in processing techniques based on casting. The phase-field method is widely used to study evolution of such microstructural phase transformations on a continuum level; it couples the energy equation to a phenomenological Allen-Cahn/Ginzburg-Landau equation modelling the dynamics of an order parameter determining the solid and liquid phases, including also stochastic fluctuations to obtain the qualitatively correct result of dendritic side branching. This work presents a method to determine stochastic phase-field models from atomistic formulations by coarse-graining molecular dynamics. It has three steps: (1) a precise quantitative atomistic definition of the phase-field variable, based on the local potential energy; (2) derivation of its coarse-grained dynamics model, from microscopic Smoluchowski molecular dynamics (that is Brownian or over damped Langevin dynamics); and (3) numerical computation of the coarse-grained model functions. The coarse-grained model approximates Gibbs ensemble averages of the atomistic phase-field, by choosing coarse-grained drift and diffusion functions that minimize the approximation error of observables in this ensemble average. © EDP Sciences, SMAI, 2010.

  20. A stochastic phase-field model determined from molecular dynamics

    KAUST Repository

    von Schwerin, Erik

    2010-03-17

    The dynamics of dendritic growth of a crystal in an undercooled melt is determined by macroscopic diffusion-convection of heat and by capillary forces acting on the nanometer scale of the solid-liquid interface width. Its modelling is useful for instance in processing techniques based on casting. The phase-field method is widely used to study evolution of such microstructural phase transformations on a continuum level; it couples the energy equation to a phenomenological Allen-Cahn/Ginzburg-Landau equation modelling the dynamics of an order parameter determining the solid and liquid phases, including also stochastic fluctuations to obtain the qualitatively correct result of dendritic side branching. This work presents a method to determine stochastic phase-field models from atomistic formulations by coarse-graining molecular dynamics. It has three steps: (1) a precise quantitative atomistic definition of the phase-field variable, based on the local potential energy; (2) derivation of its coarse-grained dynamics model, from microscopic Smoluchowski molecular dynamics (that is Brownian or over damped Langevin dynamics); and (3) numerical computation of the coarse-grained model functions. The coarse-grained model approximates Gibbs ensemble averages of the atomistic phase-field, by choosing coarse-grained drift and diffusion functions that minimize the approximation error of observables in this ensemble average. © EDP Sciences, SMAI, 2010.

  1. Understanding the Dynamics of Violent Political Revolutions in an Agent-Based Framework.

    Science.gov (United States)

    Moro, Alessandro

    2016-01-01

    This paper develops an agent-based computational model of violent political revolutions in which a subjugated population of citizens and an armed revolutionary organisation attempt to overthrow a central authority and its loyal forces. The model replicates several patterns of rebellion consistent with major historical revolutions, and provides an explanation for the multiplicity of outcomes that can arise from an uprising. The relevance of the heterogeneity of scenarios predicted by the model can be understood by considering the recent experience of the Arab Spring involving several rebellions that arose in an apparently similar way, but resulted in completely different political outcomes: the successful revolution in Tunisia, the failed protests in Saudi Arabia and Bahrain, and civil war in Syria and Libya.

  2. Tweeting on Catalonia’s Independence: The Dynamics of Political Discussion and Group Polarisation

    Directory of Open Access Journals (Sweden)

    Joan Balcells

    2016-12-01

    Full Text Available This article provides evidence in favour of social media serving as facilitators of public deliberation, in contrast with the hypothesis that emphasises the dominance of the “echo chamber” effect. It focuses on conversational interactions on Twitter between supporters from opposite sides in a potentially highly polarised political issue, i.e. the debate on the independence of Catalonia, which is used as a case study. Methodologically we rely on a random sample of communications on the Twitter reply network, involving for and against independence supporters. Remarkably, despite the tendency of forming homophilic networks, we find that communication across political lines is relatively frequent. Furthermore, heterogeneous conversations (where opposing sides are engaged in a dialogue tend to be significantly longer than homogenous ones (where all participants share the same view, which can be seen as a sign of genuine deliberation based on reasonably exchanging arguments between competing viewpoints.

  3. Environmental, political, and economic determinants of water quality monitoring in Europe

    Science.gov (United States)

    Beck, Lucas; Bernauer, Thomas; Kalbhenn, Anna

    2010-11-01

    Effective monitoring is essential for effective pollution control in national and international water systems. To what extent are countries' monitoring choices driven by environmental criteria, as they should be? And to what extent are they also influenced by other factors, such as political and economic conditions? To address these questions, we describe and explain the evolution of one of the most important international environmental monitoring networks in Europe, the one for water quality, in the time period 1965-2004. We develop a geographic information system that contains information on the location of several thousand active monitoring stations in Europe. Using multivariate statistics, we then examine whether and to what extent the spatial and temporal clustering of monitoring intensity is driven by environmental, political, and economic factors. The results show that monitoring intensity is higher in river basins exposed to greater environmental pressure. However, political and economic factors also play a strong role in monitoring decisions: democracy, income, and peer pressure are conducive to monitoring intensity, and monitoring intensity generally increases over time. Moreover, even though monitoring is more intense in international upstream-downstream settings, we observe only a weak bias toward more monitoring downstream of international borders. In contrast, negative effects of European Union (EU) membership and runup to the EU's Water Framework Directive are potential reasons for concern. Our results strongly suggest that international coordination and standardization of water quality monitoring should be intensified. It will be interesting to apply our analytical approach also to other national and international monitoring networks, for instance, the U.S. National Water-Quality Assessment Program or the European Monitoring and Evaluation Program for air pollution.

  4. Reinventing Dalit Women's Identity?:Dynamics of Social Activism and Electoral Politics in Rural North India

    OpenAIRE

    Govinda, Radhika

    2008-01-01

    Dalit or ex-untouchable women's voices and perspectives have been marginalized not only in Dalit movements but also in predominantly upper-caste Hindu-led women's movements. This paper aims at exploring the unheard voices and perspectives of Dalit women in the context of Dalit assertion in the state of Uttar Pradesh, north India. Scholarly writing examines the different facets of Dalit political assertion led by the Bahujan Samaj Party in Uttar Pradesh. Few scholars, however, examine the ways...

  5. Political Dynamics and Security in the Arabian Peninsula Through the 1990s,

    Science.gov (United States)

    1993-01-01

    Moreover, not only were historical and ideological differences between Syria and Iraq present, but Dam- ascus had supported Iran throughout the Iran...Iraq wanted to rebuild its war-dam- aged facilities as well as expand its industrial capacity., The need to show something for the war, coupled with a...outlooks, Gulf shaykhdoms articulated na- tional security policies through age -old political survival techniques. By 1992, however, and in large

  6. Science communication as political communication

    Science.gov (United States)

    Scheufele, Dietram A.

    2014-01-01

    Scientific debates in modern societies often blur the lines between the science that is being debated and the political, moral, and legal implications that come with its societal applications. This manuscript traces the origins of this phenomenon to professional norms within the scientific discipline and to the nature and complexities of modern science and offers an expanded model of science communication that takes into account the political contexts in which science communication takes place. In a second step, it explores what we know from empirical work in political communication, public opinion research, and communication research about the dynamics that determine how issues are debated and attitudes are formed in political environments. Finally, it discusses how and why it will be increasingly important for science communicators to draw from these different literatures to ensure that the voice of the scientific community is heard in the broader societal debates surrounding science. PMID:25225389

  7. Science communication as political communication.

    Science.gov (United States)

    Scheufele, Dietram A

    2014-09-16

    Scientific debates in modern societies often blur the lines between the science that is being debated and the political, moral, and legal implications that come with its societal applications. This manuscript traces the origins of this phenomenon to professional norms within the scientific discipline and to the nature and complexities of modern science and offers an expanded model of science communication that takes into account the political contexts in which science communication takes place. In a second step, it explores what we know from empirical work in political communication, public opinion research, and communication research about the dynamics that determine how issues are debated and attitudes are formed in political environments. Finally, it discusses how and why it will be increasingly important for science communicators to draw from these different literatures to ensure that the voice of the scientific community is heard in the broader societal debates surrounding science.

  8. Spiritual Politics

    Directory of Open Access Journals (Sweden)

    Frédéric Rambeau

    2015-01-01

    Full Text Available According to Foucault, the uprising of the Iranian people in the seventies reveals how much the political force of Islam is due precisely to the fact that it is not principally located in the field of politics, but in that of ethics. Religion (Shiite Islam appears as the guarantee of real change in the very mode of existence. This spiritual politics is marginalized by Marxism, where it is understood as a discontinuity in relation to proper politics, given that the latter is necessarily linked to a strategic rationalization. By indicating, at this juncture of what is intolerable, the living source and the critical impulse of the Foucauldian ethics, this spiritual politics also leads to recognize in the concept of “subjectivation” a dimension that might escape the circle of freedom as determined by a total immanence to power. This conceptual possibility is highly present in the aporias of the Foucauldian concept of the “relation to oneself”, both as a first condition of governmentality and the ultimate point of resistance against any governmentality. It thus reveals the difficulties in relating political to ethical subjectivation.

  9. Dynamics and politics of invisibility. Act, surveillance and radicalization in agriculture.

    Directory of Open Access Journals (Sweden)

    Liliana Suárez Navaz

    2016-10-01

    Full Text Available Research on the effects of foreign workers in the labour market has often assumed ethnicity as «adding» a new system of stratification to that of class. This work illustrates, on the contrary, the mutual constitution of class and ethnicity as the ofltcome of historical relations and processes Which are in no sense purely economic, but also politically and culturally conditioned. Based on a diachronic and ethnographic research focused on the relations between African foreign workers and Spanish peasants, I explore the significant ethnic and class transformations taking place in the Andalusia countryside. I argue that the process of legitimation of control of «illegal» immigrants, constructed as outside and criminalized labour, enables the state’s intervention over local issues, thus transforming consuetudinary labour practices, informal economic strategies, and local notions of autonomy and justice. Consequently, the presence of immigrants in the labour market enables the state to further modernization, not just at the economic but most fundamentally at the political and cultural levels, in the process of construction of an ordered citizenship.

  10. Emotional insecurity about the community: A dynamic, within-person mediator of child adjustment in contexts of political violence.

    Science.gov (United States)

    Cummings, E Mark; Merrilees, Christine; Taylor, Laura K; Goeke-Morey, Marcie; Shirlow, Peter

    2017-02-01

    Over 1 billion children worldwide are exposed to political violence and armed conflict. The current conclusions are qualified by limited longitudinal research testing sophisticated process-oriented explanatory models for child adjustment outcomes. In this study, consistent with a developmental psychopathology perspective emphasizing the value of process-oriented longitudinal study of child adjustment in developmental and social-ecological contexts, we tested emotional insecurity about the community as a dynamic, within-person mediating process for relations between sectarian community violence and child adjustment. Specifically, this study explored children's emotional insecurity at a person-oriented level of analysis assessed over 5 consecutive years, with child gender examined as a moderator of indirect effects between sectarian community violence and child adjustment. In the context of a five-wave longitudinal research design, participants included 928 mother-child dyads in Belfast (453 boys, 475 girls) drawn from socially deprived, ethnically homogenous areas that had experienced political violence. Youth ranged in age from 10 to 20 years and were 13.24 (SD = 1.83) years old on average at the initial time point. Greater insecurity about the community measured over multiple time points mediated relations between sectarian community violence and youth's total adjustment problems. The pathway from sectarian community violence to emotional insecurity about the community was moderated by child gender, with relations to emotional insecurity about the community stronger for girls than for boys. The results suggest that ameliorating children's insecurity about community in contexts of political violence is an important goal toward improving adolescents' well-being and adjustment. These results are discussed in terms of their translational research implications, consistent with a developmental psychopathology model for the interface between basic and intervention

  11. Determining Coastal Mean Dynamic Topography by Geodetic Methods

    Science.gov (United States)

    Huang, Jianliang

    2017-11-01

    In geodesy, coastal mean dynamic topography (MDT) was traditionally determined by spirit leveling technique. Advances in navigation satellite positioning (e.g., GPS) and geoid determination enable space-based leveling with an accuracy of about 3 cm at tide gauges. Recent CryoSat-2, a satellite altimetry mission with synthetic aperture radar (SAR) and SAR interferometric measurements, extends the space-based leveling to the coastal ocean with the same accuracy. However, barriers remain in applying the two space-based geodetic methods for MDT determination over the coastal ocean because current geoid modeling focuses primarily on land as a substitute to spirit leveling to realize the vertical datum.

  12. Dynamic pressure sensitivity determination with Mach number method

    Science.gov (United States)

    Sarraf, Christophe; Damion, Jean-Pierre

    2018-05-01

    Measurements of pressure in fast transient conditions are often performed even if the dynamic characteristic of the transducer are not traceable to international standards. Moreover, the question of a primary standard in dynamic pressure is still open, especially for gaseous applications. The question is to improve dynamic standards in order to respond to expressed industrial needs. In this paper, the method proposed in the EMRP IND09 ‘Dynamic’ project, which can be called the ‘ideal shock tube method’, is compared with the ‘collective standard method’ currently used in the Laboratoire de Métrologie Dynamique (LNE/ENSAM). The input is a step of pressure generated by a shock tube. The transducer is a piezoelectric pressure sensor. With the ‘ideal shock tube method’ the sensitivity of a pressure sensor is first determined dynamically. This method requires a shock tube implemented with piezoelectric shock wave detectors. The measurement of the Mach number in the tube allows an evaluation of the incident pressure amplitude of a step using a theoretical 1D model of the shock tube. Heat transfer, other actual effects and effects of the shock tube imperfections are not taken into account. The amplitude of the pressure step is then used to determine the sensitivity in dynamic conditions. The second method uses a frequency bandwidth comparison to determine pressure at frequencies from quasi-static conditions, traceable to static pressure standards, to higher frequencies (up to 10 kHz). The measurand is also a step of pressure generated by a supposed ideal shock tube or a fast-opening device. The results are provided as a transfer function with an uncertainty budget assigned to a frequency range, also deliverable frequency by frequency. The largest uncertainty in the bandwidth of comparison is used to trace the final pressure step level measured in dynamic conditions, owing that this pressure is not measurable in a steady state on a shock tube. A reference

  13. From Policy “Frames” to “Framing”: Theorizing a More Dynamic, Political Approach

    NARCIS (Netherlands)

    Hulst, van M.J.; Yanow, D.

    2016-01-01

    The concept of frames or framing, especially cast as “frame analysis,” has an established history in public policy. Taking off from the work of Donald Schön and Martin Rein, we develop the idea of policy analytic framing, the more dynamic of the two terms, in ways that strengthen what we see as its

  14. From Policy “Frames” to “Framing” : Theorizing a More Dynamic, Political Approach

    NARCIS (Netherlands)

    van Hulst, M.J.; Yanow, Dvora

    2016-01-01

    The concept of frames or framing, especially cast as “frame analysis,” has an established history in public policy. Taking off from the work of Donald Schön and Martin Rein, we develop the idea of policy analytic framing, the more dynamic of the two terms, in ways that strengthen what we see as its

  15. Determinant and impacts of dynamic inflation in Ethiopia

    OpenAIRE

    Biresaw, Temesgen Tezera

    2014-01-01

    This thesis uses quarterly data for the period 1998-2010 to investigate the determinant and impacts of dynamic inflation in Ethiopia. By using Granger causality model approach four testable hypotheses are investigated: (1) does the money supply growth Granger-cause inflation? (2) Does currency devaluation Granger cause inflation? (3) Does inflation affect economic growth? And (4) Does oil price Granger cause of inflation? The empirical results suggest that there existed a bi-directional ...

  16. Polarization in the media during an election campaign: A dynamic network model predicting support and attack among political actors

    NARCIS (Netherlands)

    De Nooy, W.; Kleinnijenhuis, J.

    2013-01-01

    In multiparty election campaigns, many political parties and candidates compete for media attention, voters, and a government majority. Negative campaigning, which is often newsworthy, is an attractive strategy in the competition for media attention. However, political support for another party

  17. Polarization in the media during an election campaign: a dynamic network model predicting support and attack among political actors

    NARCIS (Netherlands)

    de Nooy, W.; Kleinnijenhuis, J.

    2013-01-01

    In multiparty election campaigns, many political parties and candidates compete for media attention, voters, and a government majority. Negative campaigning, which is often newsworthy, is an attractive strategy in the competition for media attention. However, political support for another party

  18. Dynamical zeta functions and dynamical determinants for hyperbolic maps a functional approach

    CERN Document Server

    Baladi, Viviane

    2018-01-01

    The spectra of transfer operators associated to dynamical systems, when acting on suitable Banach spaces, contain key information about the ergodic properties of the systems. Focusing on expanding and hyperbolic maps, this book gives a self-contained account on the relation between zeroes of dynamical determinants, poles of dynamical zeta functions, and the discrete spectra of the transfer operators. In the hyperbolic case, the first key step consists in constructing a suitable Banach space of anisotropic distributions. The first part of the book is devoted to the easier case of expanding endomorphisms, showing how the (isotropic) function spaces relevant there can be studied via Paley–Littlewood decompositions, and allowing easier access to the construction of the anisotropic spaces which is performed in the second part. This is the first book describing the use of anisotropic spaces in dynamics. Aimed at researchers and graduate students, it presents results and techniques developed since the beginning of...

  19. The role of the party leadership to activization the political process of modern Ukraine

    OpenAIRE

    N. V. Morar

    2014-01-01

    This article analyzes the conceptual position of the party leadership as a factor in activation processes of political transformation in societies. The place of the party leaders in the political processes in Ukraine, which belongs to the transitional societies. It is proved that the main factor determining the place and role of party leaders in the political processes of transformation of societies dynamics. Where society is experiencing political transformation implemented constitutional...

  20. Politics and Graduate Medical Education in Internal Medicine: A Dynamic Landscape.

    Science.gov (United States)

    Wardrop, Richard M; Berkowitz, Lee R

    2017-02-01

    The promotion of change and growth within medical education is oftentimes the result of a complex mix of societal, cultural and economic forces. Graduate medical education in internal medicine is not immune to these forces. Several entities and organizations can be identified as having a major influence on internal medicine training and graduate medical education as a whole. We have reviewed how this is effectively accomplished through these entities and organizations. The result is a constantly changing and dynamic landscape for internal medicine training. Copyright © 2017 Southern Society for Clinical Investigation. Published by Elsevier Inc. All rights reserved.

  1. A system dynamics model to determine products mix

    Directory of Open Access Journals (Sweden)

    Mahtab Hajghasem

    2014-02-01

    Full Text Available This paper presents an implementation of system dynamics model to determine appropriate product mix by considering various factors such as labor, materials, overhead, etc. for an Iranian producer of cosmetic and sanitary products. The proposed model of this paper considers three hypotheses including the relationship between product mix and profitability, optimum production capacity and having minimum amount of storage to take advantage of low cost production. The implementation of system dynamics on VENSIM software package has confirmed all three hypotheses of the survey and suggested that in order to reach better mix product, it is necessary to reach optimum production planning, take advantage of all available production capacities and use inventory management techniques.

  2. Aerodynamic coefficient identification package dynamic data accuracy determinations: Lessons learned

    Science.gov (United States)

    Heck, M. L.; Findlay, J. T.; Compton, H. R.

    1983-01-01

    The errors in the dynamic data output from the Aerodynamic Coefficient Identification Packages (ACIP) flown on Shuttle flights 1, 3, 4, and 5 were determined using the output from the Inertial Measurement Units (IMU). A weighted least-squares batch algorithm was empolyed. Using an averaging technique, signal detection was enhanced; this allowed improved calibration solutions. Global errors as large as 0.04 deg/sec for the ACIP gyros, 30 mg for linear accelerometers, and 0.5 deg/sec squared in the angular accelerometer channels were detected and removed with a combination is bias, scale factor, misalignment, and g-sensitive calibration constants. No attempt was made to minimize local ACIP dynamic data deviations representing sensed high-frequency vibration or instrument noise. Resulting 1sigma calibrated ACIP global accuracies were within 0.003 eg/sec, 1.0 mg, and 0.05 deg/sec squared for the gyros, linear accelerometers, and angular accelerometers, respectively.

  3. Political institutions since 1820

    NARCIS (Netherlands)

    Foldvari, Peter; Buzasi, Katalin

    2014-01-01

    Political institutions determine the degree of freedom people enjoy and their capacity to influence their social and political environment. This chapter provides historical evidence on the evolution of political institutions drawing upon two major research projects: the PolityIV dataset and the

  4. Construction of political identity within the globalization and social transition

    Directory of Open Access Journals (Sweden)

    Čičkarić Ljiljana M.

    2003-01-01

    Full Text Available This research is based on analysis of the role of historical, political social and cultural factors in creating the context of political identity formation processes in transition to adulthood. The author examines the postmodern social environment and its implications on political socialization. Certain characteristics, determined by processes of standardization and homogenization on global level, are identical in both developed and transitional societies in Europe. Increased individualization and reflexivity, as the major points of postmodern society, generate isolation, narcism, cinism, political apathy, social exclusion and marginalization. In the second part of the paper, the dynamic interaction of transitional and globalizing processes and the problem of value system reconstruction are questioned. Two types of social activism, participation in official political institutions and engagement in non-institutional politics, are considered, especially the participation of young generation in social, economic and political reforms in transitional societies.

  5. Social licence, corporate social responsibility and coal seam gas: framing the new political dynamics of contestation

    International Nuclear Information System (INIS)

    Curran, Giorel

    2017-01-01

    This paper explores the contestation dynamics between the unconventional gas mining sector and its challengers through the prism of the social licence to operate. Social licence is a dominant narrative in the mining sector today and as a signifier of the sector's CSR credentials, the term is an influential one. Its capacity to confer project legitimacy, and hence avoid the risks of community opposition, helps explain why most companies seek to gain one. Today both gas proponents and opponents talk the language of social licence: the former to defend their projects, the latter to challenge them. Yet, beyond rhetoric, the precise meaning of social licence remains elusive. This paper uses a case study of community opposition to primarily coal seam gas projects in an eastern Australian region to explore how the absence of a precise meaning for social licence has created a strategic opportunity space for the industry's opponents to invest social licence with a potent democracy frame. This democracy framing has proved particularly effective as a contestation tool and helps explain the outcomes in this case. - Highlights: • Unconventional gas exploration and mining is becoming increasingly contested. • A key way of managing this contestation is through the social licence to operate. • Both proponents and opponents of gas mining use social licence strategically. • Social licence has become increasingly politicised. • A democratic frame assists the effectiveness of contestation.

  6. Political model of social evolution.

    Science.gov (United States)

    Acemoglu, Daron; Egorov, Georgy; Sonin, Konstantin

    2011-12-27

    Almost all democratic societies evolved socially and politically out of authoritarian and nondemocratic regimes. These changes not only altered the allocation of economic resources in society but also the structure of political power. In this paper, we develop a framework for studying the dynamics of political and social change. The society consists of agents that care about current and future social arrangements and economic allocations; allocation of political power determines who has the capacity to implement changes in economic allocations and future allocations of power. The set of available social rules and allocations at any point in time is stochastic. We show that political and social change may happen without any stochastic shocks or as a result of a shock destabilizing an otherwise stable social arrangement. Crucially, the process of social change is contingent (and history-dependent): the timing and sequence of stochastic events determine the long-run equilibrium social arrangements. For example, the extent of democratization may depend on how early uncertainty about the set of feasible reforms in the future is resolved.

  7. Determination of dynamic fracture toughness using a new experimental technique

    Directory of Open Access Journals (Sweden)

    Cady Carl M.

    2015-01-01

    Full Text Available In other studies dynamic fracture toughness has been measured using Charpy impact and modified Hopkinson Bar techniques. In this paper results will be shown for the measurement of fracture toughness using a new test geometry. The crack propagation velocities range from ∼0.15 mm/s to 2.5 m/s. Digital image correlation (DIC will be the technique used to measure both the strain and the crack growth rates. The boundary of the crack is determined using the correlation coefficient generated during image analysis and with interframe timing the crack growth rate and crack opening can be determined. A comparison of static and dynamic loading experiments will be made for brittle polymeric materials. The analysis technique presented by Sammis et al. [1] is a semi-empirical solution, however, additional Linear Elastic Fracture Mechanics analysis of the strain fields generated as part of the DIC analysis allow for the more commonly used method resembling the crack tip opening displacement (CTOD experiment. It should be noted that this technique was developed because limited amounts of material were available and crack growth rates were to fast for a standard CTOD method.

  8. Determination of dynamic fracture toughness using a new experimental technique

    Science.gov (United States)

    Cady, Carl M.; Liu, Cheng; Lovato, Manuel L.

    2015-09-01

    In other studies dynamic fracture toughness has been measured using Charpy impact and modified Hopkinson Bar techniques. In this paper results will be shown for the measurement of fracture toughness using a new test geometry. The crack propagation velocities range from ˜0.15 mm/s to 2.5 m/s. Digital image correlation (DIC) will be the technique used to measure both the strain and the crack growth rates. The boundary of the crack is determined using the correlation coefficient generated during image analysis and with interframe timing the crack growth rate and crack opening can be determined. A comparison of static and dynamic loading experiments will be made for brittle polymeric materials. The analysis technique presented by Sammis et al. [1] is a semi-empirical solution, however, additional Linear Elastic Fracture Mechanics analysis of the strain fields generated as part of the DIC analysis allow for the more commonly used method resembling the crack tip opening displacement (CTOD) experiment. It should be noted that this technique was developed because limited amounts of material were available and crack growth rates were to fast for a standard CTOD method.

  9. Political Epistemology

    DEFF Research Database (Denmark)

    Pedersen, David Budtz

    2011-01-01

    This dissertation is intended to establish a framework for a revised picture of the loci of epistemic preferences in our complex knowledge-based society. In what ways do institutions, policies and regulations determine the conditions under which knowledge is produced and justified? This dissertat......? This dissertation argues that we can identify multiple epistemic preferences in the institutional and political settings that govern the production and distribution of knowledge....

  10. An exploration of the political economy dynamics shaping health worker incentives in three districts in Sierra Leone.

    Science.gov (United States)

    Bertone, Maria Paola; Witter, Sophie

    2015-09-01

    The need for evidence-based practice calls for research focussing not only on the effectiveness of interventions and their translation into policies, but also on implementation processes and the factors influencing them, in particular for complex health system policies. In this paper, we use the lens of one of the health system's 'building blocks', human resources for health (HRH), to examine the implementation of official policies on HRH incentives and the emergence of informal practices in three districts of Sierra Leone. Our mixed-methods research draws mostly from 18 key informant interviews at district level. Data are organised using a political economy framework which focuses on the dynamic interactions between structure (context, historical legacies, institutions) and agency (actors, agendas, power relations) to show how these elements affect the HRH incentive practices in each district. It appears that the official policies are re-shaped both by implementation challenges and by informal practices emerging at local level as the result of the district-level dynamics and negotiations between District Health Management Teams (DHMTs) and nongovernmental organisations (NGOs). Emerging informal practices take the form of selective supervision, salary supplementations and per diems paid to health workers, and aim to ensure a better fit between the actors' agendas and the incentive package. Importantly, the negotiations which shape such practices are characterised by a substantial asymmetry of power between DHMTs and NGOs. In conclusion, our findings reveal the influence of NGOs on the HRH incentive package and highlight the need to empower DHMTs to limit the discrepancy between policies defined at central level and practices in the districts, and to reduce inequalities in health worker remuneration across districts. For Sierra Leone, these findings are now more relevant than ever as new players enter the stage at district level, as part of the Ebola response and

  11. Quantifying the Determinants of Evolutionary Dynamics Leading to Drug Resistance.

    Directory of Open Access Journals (Sweden)

    Guillaume Chevereau

    Full Text Available The emergence of drug resistant pathogens is a serious public health problem. It is a long-standing goal to predict rates of resistance evolution and design optimal treatment strategies accordingly. To this end, it is crucial to reveal the underlying causes of drug-specific differences in the evolutionary dynamics leading to resistance. However, it remains largely unknown why the rates of resistance evolution via spontaneous mutations and the diversity of mutational paths vary substantially between drugs. Here we comprehensively quantify the distribution of fitness effects (DFE of mutations, a key determinant of evolutionary dynamics, in the presence of eight antibiotics representing the main modes of action. Using precise high-throughput fitness measurements for genome-wide Escherichia coli gene deletion strains, we find that the width of the DFE varies dramatically between antibiotics and, contrary to conventional wisdom, for some drugs the DFE width is lower than in the absence of stress. We show that this previously underappreciated divergence in DFE width among antibiotics is largely caused by their distinct drug-specific dose-response characteristics. Unlike the DFE, the magnitude of the changes in tolerated drug concentration resulting from genome-wide mutations is similar for most drugs but exceptionally small for the antibiotic nitrofurantoin, i.e., mutations generally have considerably smaller resistance effects for nitrofurantoin than for other drugs. A population genetics model predicts that resistance evolution for drugs with this property is severely limited and confined to reproducible mutational paths. We tested this prediction in laboratory evolution experiments using the "morbidostat", a device for evolving bacteria in well-controlled drug environments. Nitrofurantoin resistance indeed evolved extremely slowly via reproducible mutations-an almost paradoxical behavior since this drug causes DNA damage and increases the mutation

  12. Determination of the dynamic elastic constants of recycled aggregate concrete

    Science.gov (United States)

    Tsoumani, A. A.; Barkoula, N.-M.; Matikas, T. E.

    2015-03-01

    Nowadays, construction and demolition waste constitutes a major portion of the total solid waste production in the world. Due to both environmental and economical reasons, an increasing interest concerning the use of recycled aggregate to replace aggregate from natural sources is generated. This paper presents an investigation on the properties of recycled aggregate concrete. Concrete mixes are prepared using recycled aggregates at a substitution level between 0 and 100% of the total coarse aggregate. The influence of this replacement on strengthened concrete's properties is being investigated. The properties estimated are: density and dynamic modulus of elasticity at the age of both 7 and 28 days. Also, flexural strength of 28 days specimens is estimated. The determination of the dynamic elastic modulus was made using the ultrasonic pulse velocity method. The results reveal that the existence of recycled aggregates affects the properties of concrete negatively; however, in low levels of substitution the influence of using recycled aggregates is almost negligible. Concluding, the controlled use of recycled aggregates in concrete production may help solve a vital environmental issue apart from being a solution to the problem of inadequate concrete aggregates.

  13. Interaction Dynamics Determine Signaling and Output Pathway Responses

    Directory of Open Access Journals (Sweden)

    Klement Stojanovski

    2017-04-01

    Full Text Available The understanding of interaction dynamics in signaling pathways can shed light on pathway architecture and provide insights into targets for intervention. Here, we explored the relevance of kinetic rate constants of a key upstream osmosensor in the yeast high-osmolarity glycerol-mitogen-activated protein kinase (HOG-MAPK pathway to signaling output responses. We created mutant pairs of the Sln1-Ypd1 complex interface that caused major compensating changes in the association (kon and dissociation (koff rate constants (kinetic perturbations but only moderate changes in the overall complex affinity (Kd. Yeast cells carrying a Sln1-Ypd1 mutant pair with moderate increases in kon and koff displayed a lower threshold of HOG pathway activation than wild-type cells. Mutants with higher kon and koff rates gave rise to higher basal signaling and gene expression but impaired osmoadaptation. Thus, the kon and koff rates of the components in the Sln1 osmosensor determine proper signaling dynamics and osmoadaptation.

  14. The micro-level foundations and dynamics of political corporate social responsibility: hegemony and passive revolution through civil society

    NARCIS (Netherlands)

    Kourula, A.; Delalieux, G.

    2016-01-01

    Exploration of the political roles firms play in society is a flourishing stream within corporate social responsibility (CSR) research. However, few empirical studies have examined multiple levels of political CSR at the same time from a critical perspective. We explore both how the motivations of

  15. Determination of the static potential with dynamical fermions

    Energy Technology Data Exchange (ETDEWEB)

    Donnellan, Michael; Sommer, Rainer [Deutsches Elektronen-Synchrotron (DESY), Zeuthen (Germany). John von Neumann-Inst. fuer Computing NIC; Knechtli, Francesco [Bergische Univ. Wuppertal (Germany). Dept. of Physics; Leder, Bjoern [Bergische Univ. Wuppertal (Germany). Dept. of Mathematics

    2010-12-15

    We present in detail a technique to extract the potential between a static quark and anti-quark pair from Wilson loops measured on dynamical configurations. This technique is based on HYP smearing and leads to an exponential improvement of the noise-to-signal ratio of Wilson loops. We explain why the correct continuum potential is obtained and show numerical evidence that the cut-off effects are small. We present precise results for the non-perturbative potential. As applications, we determine the scale r{sub 0}/a and study the shape of the static potential in the range of distances around r{sub 0}, where it can be compared with phenomenological potential models. (orig.)

  16. The Noisy Counter-Revolution: Understanding the Cultural Conditions and Dynamics of Populist Politics in Europe in the Digital Age

    Directory of Open Access Journals (Sweden)

    Lars Rensmann

    2017-12-01

    Full Text Available The article argues for a cultural turn in the study of populist politics in Europe. Integrating insights from three fields—political sociology, political psychology, and media studies—a new, multi-disciplinary framework is proposed to theorize particular cultural conditions favorable to the electoral success of populist parties. Through this lens, the fourth wave of populism should be viewed as a “noisy”, anti-cosmopolitan counter-revolution in defense of traditional cultural identity. Reflective of a deep-seated, value-based great divide in European democracies that largely trumps economic cleavages, populist parties first and foremost politically mobilize long lingering cultural discontent and successfully express a backlash against cultural change. While the populist counter-revolution is engendered by profoundly transformed communicative conditions in the age of social media, its emotional force can best be theorized with the political psychology of authoritarianism: as a new type of authoritarian cultural revolt.

  17. Dynamic and reduced-dynamic precise orbit determination of satellites in low earth orbits

    International Nuclear Information System (INIS)

    Swatschina, P.

    2009-01-01

    The precise positioning of satellites in Low Earth Orbits (LEO) has become a key technology for advanced space missions. Dedicated satellite missions, such as CHAMP, GRACE and GOCE, that aim to map the Earths gravity field and its variation over time with unprecedented accuracy, initiated the demand for highly precise orbit solutions of LEO satellites. Furthermore, a wide range of additional science opportunities opens up with the capability to generate accurate LEO orbits. For all considered satellite missions, the primary measurement system for navigation is a spaceborne GPS receiver. The goal of this thesis is to establish and implement methods for Precise Orbit Determination (POD) of LEO satellites using GPS. Striving for highest precision using yet efficient orbit generation strategies, the attained orbit solutions are aimed to be competitive with the most advanced solutions of other institutions. Dynamic and reduced-dynamic orbit models provide the basic concepts of this work. These orbit models are subsequently adjusted to the highly accurate GPS measurements. The GPS measurements are introduced at the zero difference level in the ionosphere free linear combination. Appropriate procedures for GPS data screening and editing are established to detect erroneous data and to employ measurements of good quality only. For the dynamic orbit model a sophisticated force model, especially designed for LEO satellites, has been developed. In order to overcome the limitations that are induced by the deficiencies of the purely dynamical model, two different types of empirical parameters are introduced into the force model. These reduced-dynamic orbit models allow for the generation of much longer orbital arcs while preserving the spacecraft dynamics to the most possible extent. The two methods for reduced-dynamic orbit modeling are instantaneous velocity changes (pulses) or piecewise constant accelerations. For both techniques highly efficient modeling algorithms are

  18. Making it Politic(al: closing the Gap in a Generation: Health Equity Through Action on the Social Determinants of Health

    Directory of Open Access Journals (Sweden)

    Anne-Emanuelle Birn

    2009-09-01

    Full Text Available The anniversary of the publication of Closing the Gap in a Generation (CGG offers a moment to reflect on the report’s contributions and shortcomings, as well as to consider the political waters ahead. The issuance of CGG was not the first time the World Health Organization (WHO raised the problem of global inequalities in health. Numerous analysts and advocates have compared CGG to the 1978 Declaration of Alma-Ata. Some see CGG as a continuation of Alma-Ata; others malign it for paying insufficient attention to the principles, background documents, and lines of action proposed in the Alma-Ata declaration. We might understand the two reports as bookends to 30 years of brutal global capitalism, punctuated by the “lost decade” of the 1980s, the end of the Cold War, and, more recently, the implosion of global finance. This period saw the publication of two seminal neoliberal health manifestos –the World Bank’s 1993 World Development Report and the WHO’s 2002 Commission on Macroeconomics and Health report. Both feature the term “investing in health” in their title, conveying “a double meaning—investing [through “cost-effective,” narrow, technical interventions] to improve health, economic productivity, and poverty; and investing capital, especially private capital, as a route to private profit in the health sector.”

  19. Tutorial: Determination of thermal boundary resistance by molecular dynamics simulations

    Science.gov (United States)

    Liang, Zhi; Hu, Ming

    2018-05-01

    Due to the high surface-to-volume ratio of nanostructured components in microelectronics and other advanced devices, the thermal resistance at material interfaces can strongly affect the overall thermal behavior in these devices. Therefore, the thermal boundary resistance, R, must be taken into account in the thermal analysis of nanoscale structures and devices. This article is a tutorial on the determination of R and the analysis of interfacial thermal transport via molecular dynamics (MD) simulations. In addition to reviewing the commonly used equilibrium and non-equilibrium MD models for the determination of R, we also discuss several MD simulation methods which can be used to understand interfacial thermal transport behavior. To illustrate how these MD models work for various interfaces, we will show several examples of MD simulation results on thermal transport across solid-solid, solid-liquid, and solid-gas interfaces. The advantages and drawbacks of a few other MD models such as approach-to-equilibrium MD and first-principles MD are also discussed.

  20. Political party affiliation, political ideology and mortality.

    Science.gov (United States)

    Pabayo, Roman; Kawachi, Ichiro; Muennig, Peter

    2015-05-01

    Ecological and cross-sectional studies have indicated that conservative political ideology is associated with better health. Longitudinal analyses of mortality are needed because subjective assessments of ideology may confound subjective assessments of health, particularly in cross-sectional analyses. Data were derived from the 2008 General Social Survey-National Death Index data set. Cox proportional analysis models were used to determine whether political party affiliation or political ideology was associated with time to death. Also, we attempted to identify whether self-reported happiness and self-rated health acted as mediators between political beliefs and time to death. In this analysis of 32,830 participants and a total follow-up time of 498,845 person-years, we find that political party affiliation and political ideology are associated with mortality. However, with the exception of independents (adjusted HR (AHR)=0.93, 95% CI 0.90 to 0.97), political party differences are explained by the participants' underlying sociodemographic characteristics. With respect to ideology, conservatives (AHR=1.06, 95% CI 1.01 to 1.12) and moderates (AHR=1.06, 95% CI 1.01 to 1.11) are at greater risk for mortality during follow-up than liberals. Political party affiliation and political ideology appear to be different predictors of mortality. Published by the BMJ Publishing Group Limited. For permission to use (where not already granted under a licence) please go to http://group.bmj.com/group/rights-licensing/permissions.

  1. Dynamic characteristics of rocks and method of their determine

    OpenAIRE

    Radoslav Schügerl

    2009-01-01

    This paper presents selected problems of the research of the influence of technical vibrations on rocks. The vibrations are the products of the technological procedure, such as mining blasting, ramming of the piles, using of the drilling-equipment or vibration machines. The vibrations could be also evocated by road or train traffic. The most important dynamic characteristics of rocks are dynamic modulus of elasticity Edyn; dynamic modulus of deformation Edef, dyn; dynamic shear-modulus Gdyn; ...

  2. Impact of Political News: Evidence from Russia

    Directory of Open Access Journals (Sweden)

    Volodin Sergey Nikolayevich

    2017-10-01

    Full Text Available In recent times political events started to exert more and more significant impact on national financial systems due to sharpening of political problems in various countries. Undoubtedly, their influence can be followed in price dynamics of stocks which are trading in the securities market. The need to understand political news impact on the market as a whole and its separate industries is faced by investors and market agents for proper orientation in market environment. Since this issue provides rather controversial results in different studies, the authors set the aim to investigate the Russian market with the use of GARCH models. Such approach allowed determining precisely the political events’ influence on return and volatility of market assets as well as leverage and clusterization effects. The obtained results may be beneficial for investors, operating in the Russian stock market, other market agents and specialists in the field of financial science.

  3. CSR as Corporate Political Activity

    DEFF Research Database (Denmark)

    Morsing, Mette; Roepstorff, Anne

    2015-01-01

    –image dynamics of political CSR’. Concretely, we describe in two vignettes how IKEA’s declared ‘apolitical and neutral’ CSR identity becomes entangled with national and international socio-political events that critically challenge the corporate engagement prior national understandings of citizenship rights....... In this process, IKEA’s CSR identity becomes defined as a political and non-neutral activity. Our article contributes by bringing attention to the organizational level dynamics of political CSR by offering a conceptualization of how global and local socio-political events may disturb the alignment between CSR...

  4. Ross-Cultural Aspects of Metaphorical Framing in Political Discourse

    Directory of Open Access Journals (Sweden)

    Tatyana V. Andryukhina

    2016-01-01

    Full Text Available The article examines cross-cultural aspects of metaphorical framing in political discourse. The author notes the importance of conceptual metaphor in framing the conceptual domain of politics, political discourse as a whole, its perception as well as political reality itself. The author shares an opinion that the metaphorical structure of basic concepts of a nation always correlates with its fundamental cultural values. However, the examination of political discourse from the cross-cultural perspective reveals the cases of metaphor uses that don't meet the requirements of cultural coherence and may lead to negative cognitive and communicative consequences. Along with admitting a wide discrepancy between metaphorical models in western and oriental political discourse, the author gives some examples of metaphorical coherence as well as its violation in a number of basic metaphors in American, British and Russian political discourse. To illustrate how cross-cultural factors determine the specific character of metaphorical framing, the article analyses the dynamic character of metaphorical models that can realize diverse scenarios in different national varieties of political discourse. An observation is made about the dependence of metaphoric scenarios in different national varieties of political discourse on the cultural, historical, social and political components of the national cultural cognitive map. The latter is heterogeneous as it is structured by the objectified individual, group, and national verbal and nonverbal experience. This explains, for instance, why there are examples of similarity as well as discrepancy between metaphorical framing in ideologically different party varieties of political discourse within the national political discourse as well as in the rhetoric of politicians belonging to different generations. The observations are illustrated by cross-linguistic data proving the dynamic character of metaphorical models, their

  5. Does the transition to chaos determine the dynamic aperture

    International Nuclear Information System (INIS)

    Jowett, J.M.

    1986-06-01

    We review the important notion of the dynamic aperture of a storage ring with emphasis on its relation to general ideas of dynamical instability, notably the transition to chaos. Practical approaches to the problem are compared. We suggest a somewhat novel quantitative guide to the old problem of choosing machine tunes based on a heuristic blend of KAM theory and resonance selection rules

  6. A simple objective method for determining a dynamic journal collection.

    Science.gov (United States)

    Bastille, J D; Mankin, C J

    1980-10-01

    In order to determine the content of a journal collection responsive to both user needs and space and dollar constraints, quantitative measures of the use of a 647-title collection have been related to space and cost requirements to develop objective criteria for a dynamic collection for the Treadwell Library at the Massachusetts General Hospital, a large medical research center. Data were collected for one calendar year (1977) and stored with the elements for each title's profile in a computerized file. To account for the effect of the bulk of the journal runs on the number of uses, raw use data have been adjusted using linear shelf space required for each title to produce a factor called density of use. Titles have been ranked by raw use and by density of use with space and cost requirements for each. Data have also been analyzed for five special categories of use. Given automated means of collecting and storing data, use measures should be collected continuously. Using raw use frequency ranking to relate use to space and costs seems sensible since a decision point cutoff can be chosen in terms of the potential interlibrary loans generated. But it places new titles at risk while protecting titles with long, little used runs. Basing decisions on density of use frequency ranking seems to produce a larger yield of titles with fewer potential interlibrary loans and to identify titles with overlong runs which may be pruned or converted to microform. The method developed is simple and practical. Its design will be improved to apply to data collected in 1980 for a continuous study of journal use. The problem addressed is essentially one of inventory control. Viewed as such it makes good financial sense to measure use as part of the routine operation of the library to provide information for effective management decisions.

  7. Politics of environmental regulation: acid rain in Ontario

    Energy Technology Data Exchange (ETDEWEB)

    Hogarth Wood, G P

    1984-01-01

    This study looks at the case of the Ontario government and Inco Limited in order to explain political responses to the acid rain issue and to generalize about the dynamics of environmental regulation. Existing accounts of the acid rain situation neglect a systematic explanation of the political processes that guide the selection of policy. This reflects a tendency in Canadian public policy analysis generally. Most literature in this field is both apolitical and atheoretical. In addition, most models of public policy focus attention on a narrow range of policy determinants, making the models inappropriate as exclusive guides for public policy analysis. This study follows an approach that assumes that no variable can, a priori, be viewed as the primary determinant of a policy choice. Instead, relevant features of the economic, social, and political environment surrounding the policy process have to be examined in addition to that process itself. Accordingly, a number of potential influences on the acid rain policy outcome in Ontario are explored: the economic structure of Ontario, political-geographic factors, the role of science and technology, political power in the province, political values and attitudes, the institutional structure of Ontario politics, and finally, the policy process itself. This exercise points to the overriding influence of the political system environment, particularly the economic structure of the province, in explaining the policy choice. The findings of this study can be extended to explain regulatory responses to the issue in other political jurisdictions.

  8. Happiness and Politics

    DEFF Research Database (Denmark)

    Landes, Xavier

    2013-01-01

    Over the last thirty years, happiness research in psychology, economics and philosophy has been discussing the proper meaning of happiness and its main determinants. Moreover, the idea has spread within academic and political circles that it may be legitimate for institutions to engage in “politics...... of happiness”. This article presents a critique of the project of promoting happiness through public policies....

  9. Political innovations

    DEFF Research Database (Denmark)

    Sørensen, Eva

    2017-01-01

    are mainly interested in assessing and promoting innovations in public service delivery, but have paid little or no attention to the need for innovations in polity, politics and policy. This article develops a research agenda for studying innovations in political institutions, in the political process...... and in policy outputs. It proposes a number of research themes related to political innovations that call for scholarly attention, and identifies push and pull factors influencing the likelihood that these themes will be addressed in future research....

  10. Moral politics

    DEFF Research Database (Denmark)

    Rapp, Carolin; Traunmüller, Richard; Freitag, Markus

    2014-01-01

    This article combines the research strands of moral politics and political behavior by focusing on the effect of individual and contextual religiosity on individual vote decisions in popular initiatives and public referenda concerning morally charged issues. We rely on a total of 13 surveys with 1...... American research on moral politics, direct democracies, and the public role of religion....

  11. Politics: An Islamic Perspective

    Directory of Open Access Journals (Sweden)

    Abdul Rashid Moten

    1993-11-01

    Full Text Available Muslim societies in all of their social and cultural variety are, as Donald E. Smith points out, ‘organic’ societies characterized by organic religious systems. In these societies, religion tends to permeate all institutions rather than to be differentiated and/or autonomous. The vast body of literature produced since the departure of the colonialists from the Muslim lands suggests, however, either the implicit existence of the dichotomy or at least the feasibility and advisability of radical separation between the spiritual and temporal realms. The seriousness of the issue, evidenced by an outpouring of studies, calls for an examination of the linkage between the two realms through textual (Qur’an and Hadith, intellectual (ideas of Muslim thinkers and historical evidence. Only in such a manner can the dynamics of the relationship between Islam and politics be understood and a determination made of what has changed and what has remained unchanged. This entails, first, an understanding of the meaning and nature of politics from the Western perspective to facilitate a comparison...

  12. Space, politics, and the political

    OpenAIRE

    dikec , mustafa

    1987-01-01

    International audience; Introduction Geography and politics'', Gottmann wrote in 1980, ``have long been in search of each other'' (page 11). Debates in the literature suggest not only that they have found each other, but also that the encounter has instigated, notably in the last decade or so, a body of literature seeking to think space politically, and to think politics spatially. This is not to suggest that previous work on space was apolitical, nor to suggest that previous work on politics...

  13. Social, economic, political and health system and program determinants of child mortality reduction in China between 1990 and 2006: A systematic analysis.

    Science.gov (United States)

    Feng, Xing Lin; Theodoratou, Evropi; Liu, Li; Chan, Kit Yee; Hipgrave, David; Scherpbier, Robert; Brixi, Hana; Guo, Sufang; Chunmei, Wen; Chopra, Mickey; Black, Robert E; Campbell, Harry; Rudan, Igor; Guo, Yan

    2012-06-01

    Between 1990 and 2006, China reduced its under-five mortality rate (U5MR) from 64.6 to 20.6 per 1000 live births and achieved the fourth United Nation's Millennium Development Goal nine years ahead of target. This study explores the contribution of social, economic and political determinants, health system and policy determinants, and health programmes and interventions to this success. For each of the years between 1990 and 2006, we obtained an estimate of U5MR for 30 Chinese provinces from the annual China Health Statistics Yearbook. For each year, we also obtained data describing the status of 8 social, 10 economic, 2 political, 9 health system and policy, and six health programmes and intervention indicators for each province. These government data are not of the same quality as some other health information sources in modern China, such as articles with primary research data available in Chinese National Knowledge Infrastructure (CNKI) and Wan Fang databases, or Chinese Maternal and Child Mortality Surveillance system. Still, the comparison of relative changes in underlying indicators with the undisputed strong general trend of childhood mortality reduction over 17 years should still capture the main effects at the macro-level. We used multivariate random effect regression models to determine the effect of 35 indicators individually and 5 constructs defined by factor analysis (reflecting effects of social, economic, political, health systems and policy, and health programmes) on the reduction of U5MR in China. In the univariate regression applied with a one-year time lag, social determinants of health construct showed the strongest crude association with U5MR reduction (R(2) = 0.74), followed by the constructs for health programmes and interventions (R(2) = 0.65), economic (R(2) = 0.47), political (R(2) = 0.28) and health system and policy determinants (R(2) = 0.26), respectively. Similarly, when multivariate regression was applied with a

  14. Performing Politics

    Directory of Open Access Journals (Sweden)

    Troy R. E. Paddock

    2016-01-01

    Full Text Available Walter Benjamin’s observation that fascism turns politics into aesthetics is, by now, a well-worn idea. This article argues that Benjamin’s critique of politics can apply just as much to the modern democratic politics of the United States. Borrowing from Benjamin, Jürgen Habermas, and Carl Schmitt, this article suggests that modern political discourse in the United States does not follow the classical liberal ideal of rational discourse in the marketplace of ideas within the public sphere. Instead, contemporary politics has become spectacle where images and slogans replace thought and debate in a 24/7 news cycle and political infotainment programs. The result is that progressives and conservatives have their own political “ecospheres” which enable them to have their own perspective reinforced, and debate is replaced by straw man arguments and personal attacks.

  15. Political Transmigrants: Rethinking Hmong Political Activism in America

    Directory of Open Access Journals (Sweden)

    Nengher N. Vang, Ph.D

    2011-12-01

    Full Text Available Since the initial resettlement of the Hmong in the United States in the mid-1970s, they have maintained strong political and military relationships with the Lao People‘s Democratic Republic (LPDR. Yet, there is little research on that relationship and the involvement of the Hmong in the United States in political developments in Laos. Most works on Hmong political activism have focused on the electoral participation and representation of Hmong Americans in relation to American domestic politics. In this article, using archival, ethnographic, and interview data that I have collected between 2006 and 2009 in Laos, Thailand, and the United States, I describe and analyze the non-domestic or transnational form of Hmong American political expression and participation. I argue that Hmong political activism in America not only was transnational from the outset, but that their transnational involvement in political developments in Laos and their relations with the Lao PDR government also had a significant impact on their ethnic politics. Many Hmong political activists made their entry into ethnic politics through the door of transnational politics, and many were motivated by transnational political issues to participate in domestic American politics. By exploring their transnational involvement in political developments in Laos and their relations with the Lao PDR government, we get a more complete and dynamic understanding of Hmong political activism in the United States than is possible by focusing exclusively on domestic and electoral participation. Examining their transnational politics also allows us to see the transnationality of not only their culture, identity, and community but also that of their political activities and aspirations.

  16. Political-Security, Economy, and Culture within the Dynamics of Geopolitics and Migration: On Philippine Territory and the Filipino People

    OpenAIRE

    John X. LAMBINO

    2015-01-01

    The paper considers the interaction of the dual elements of the nation-state: territory and people. Particularly, it discusses the interaction of geopolitics and migration, i.e. the non-mobile territory and the mobile people, from the perspectives of political-security, economy, and culture, and how the interactions influence government policy focusing on the case of the Philippines.The paper ferrets-out the major factors in the geopolitical transformation of the Philippine Is-lands into the ...

  17. Welfare States, Labor Markets, Political Dynamics, and Population Health: A Time-Series Cross-Sectional Analysis Among East and Southeast Asian Nations.

    Science.gov (United States)

    Ng, Edwin; Muntaner, Carles; Chung, Haejoo

    2016-04-01

    Recent scholarship offers different theories on how macrosocial determinants affect the population health of East and Southeast Asian nations. Dominant theories emphasize the effects of welfare regimes, welfare generosity, and labor market institutions. In this article, we conduct exploratory time-series cross-sectional analyses to generate new evidence on these theories while advancing a political explanation. Using unbalanced data of 7 East Asian countries and 11 Southeast Asian nations from 1960 to 2012, primary findings are 3-fold. First, welfare generosity measured as education and health spending has a positive impact on life expectancy, net of GDP. Second, life expectancy varies significantly by labor markets; however, these differences are explained by differences in welfare generosity. Third, as East and Southeast Asian countries become more democratic, welfare generosity increases, and population health improves. This study provides new evidence on the value of considering politics, welfare states, and labor markets within the same conceptual framework. © 2016 APJPH.

  18. Archivists Killed for Political Reasons

    NARCIS (Netherlands)

    de Baets, Antoon

    2015-01-01

    This essay, Archivists Killed for Political Reasons, offers an overview of archivists who were killed for political reasons through the ages. After determining the criteria for inclusion, sixteen such political murders of archivists are briefly discussed. These cases were distributed over six

  19. Determination of dynamic Young’s modulus of vulnerable speleothems

    Czech Academy of Sciences Publication Activity Database

    Konečný, Pavel; Lednická, Markéta; Souček, Kamil; Staš, Lubomír; Kubina, Lukáš; Gribovszki, K.

    2015-01-01

    Roč. 20, č. 2 (2015), s. 156-163 ISSN 1335-1788 R&D Projects: GA MŠk ED2.1.00/03.0082; GA MŠk(CZ) LO1406 Institutional support: RVO:68145535 Keywords : dynamic Young´s modulus * speleothem * bulk density * X-Ray Computed Tomography Subject RIV: DB - Geology ; Mineralogy Impact factor: 0.390, year: 2015 http://actamont.tuke.sk/pdf/2015/n2/10Konecny.pdf

  20. Use of the discourse analysis method to study current political practice (by the example of representation of the political leader image

    Directory of Open Access Journals (Sweden)

    Frolova Nadezhda

    2016-01-01

    Full Text Available The potentialities in the application of the discourse analysis method to study a political discourse as a current political practice are shown. The authors, using the Foucault methodology, offer a sociological definition for the political discourse. It is the authors’ opinion that the approach mentioned allows investigating a political discourse as a practice for the formation of a certain reality, specific agents, institutions and organizations. A political discourse is a simulative dynamic model of political area where various subdiscourses interact, thus creating their own ideas of policy, symbols and images. Subdiscourses of political leaders become dominating. Inasmuch as a political discourse in a current political system is carried out with the aid of mass media, it could be considered as a media discourse of policy. The authors consider the representation as a basic mechanism for the formation of a political discourse, by the example of the representation of the image of V.V. Putin, the President of the Russian Federation. The representation of a political leader image in a political discourse has a number of peculiarities. It is carried out on the basis of certain principles with the aid of the system of political codes. Empiric investigations allowed making a conclusion that the main symbolic image for the Russian President is an image of a super-hero. It is the authors’ opinion, the image of V.V. Putin as a leader super-hero is determined by the specificity of the Russian political culture within the limits of which a leader is a center of power establishing an authoritarian style of ruling. The authors show the process of the political legitimacy displacement from the institutional level to the personal one by means of mass media. A political leader gains a status of a subject establishing moral, social and value reference points for the whole of the society.

  1. Dynamic Determinants of the Uncontrolled Manifold during Human Quiet Stance.

    Science.gov (United States)

    Suzuki, Yasuyuki; Morimoto, Hiroki; Kiyono, Ken; Morasso, Pietro G; Nomura, Taishin

    2016-01-01

    Human postural sway during stance arises from coordinated multi-joint movements. Thus, a sway trajectory represented by a time-varying postural vector in the multiple-joint-angle-space tends to be constrained to a low-dimensional subspace. It has been proposed that the subspace corresponds to a manifold defined by a kinematic constraint, such that the position of the center of mass (CoM) of the whole body is constant in time, referred to as the kinematic uncontrolled manifold ( kinematic-UCM ). A control strategy related to this hypothesis ( CoM-control-strategy ) claims that the central nervous system (CNS) aims to keep the posture close to the kinematic-UCM using a continuous feedback controller, leading to sway patterns that mostly occur within the kinematic-UCM, where no corrective control is exerted. An alternative strategy proposed by the authors ( intermittent control-strategy ) claims that the CNS stabilizes posture by intermittently suspending the active feedback controller, in such a way to allow the CNS to exploit a stable manifold of the saddle-type upright equilibrium in the state-space of the system, referred to as the dynamic-UCM , when the state point is on or near the manifold. Although the mathematical definitions of the kinematic- and dynamic-UCM are completely different, both UCMs play similar roles in the stabilization of multi-joint upright posture. The purpose of this study was to compare the dynamic performance of the two control strategies. In particular, we considered a double-inverted-pendulum-model of postural control, and analyzed the two UCMs defined above. We first showed that the geometric configurations of the two UCMs are almost identical. We then investigated whether the UCM-component of experimental sway could be considered as passive dynamics with no active control, and showed that such UCM-component mainly consists of high frequency oscillations above 1 Hz, corresponding to anti-phase coordination between the ankle and hip. We

  2. Dynamic determinants of the uncontrolled manifold during human quiet stance

    Directory of Open Access Journals (Sweden)

    Yasuyuki Suzuki

    2016-12-01

    Full Text Available Human postural sway during stance arises from coordinated multi-joint movements. Thus, a sway trajectory represented by a time-varying postural vector in the multiple-joint-angle-space tends to be constrained to a low-dimensional subspace. It has been proposed that the subspace corresponds to a manifold defined by a kinematic constraint, such that the position of the center of mass (CoM of the whole body is constant in time, referred to as the kinematic uncontrolled manifold (kinematic-UCM. A control strategy related to this hypothesis (CoM-control-strategy claims that the central nervous system (CNS aims to keep the posture close to the kinematic-UCM using a continuous feedback controller, leading to sway patterns that mostly occur within the kinematic-UCM, where no corrective control is exerted. An alternative strategy proposed by the authors (intermittent control-strategy claims that the CNS stabilizes posture by intermittently suspending the active feedback controller, in such a way to allow the CNS to exploit a stable manifold of the saddle-type upright equilibrium in the state-space of the system, referred to as the dynamic-UCM, when the state point is on or near the manifold. Although the mathematical definitions of the kinematic- and dynamic-UCM are completely different, both UCMs play similar roles in the stabilization of multi-joint upright posture. The purpose of this study was to compare the dynamic performance of the two control strategies. In particular, we considered a double-inverted-pendulum-model of postural control, and analyzed the two UCMs defined above. We first showed that the geometric configurations of the two UCMs are almost identical. We then investigated whether the UCM-component of experimental sway could be considered as passive dynamics with no active control, and showed that such UCM-component mainly consists of high frequency oscillations above 1 Hz, corresponding to anti-phase coordination between the ankle and

  3. Political Campaigns

    OpenAIRE

    Lilleker, Darren

    2017-01-01

    Political campaigns are orchestrated attempts by political organizations to garner public support through persuasive communication in order to influence public policy in their favor. This broad definition encapsulates all forms of campaigns from those of neighborhood organizations seeking to influence local politicians to the campaigns of political parties and candidates who seek election to office in order to shape policy themselves. In pluralist democracies, campaigns are crucial for repres...

  4. Political CSR

    DEFF Research Database (Denmark)

    Jeppesen, Søren; Morsing, Mette

    We engage a discussion of political CSR in SMEs in an African context. Based on critical observations on Western MNC CSR action in emerging economies that holds counterproductive implications for social development, political economists have argued that business profit far more than society...... development in local African communities. Our findings extend political CSR research by directing attention to how the corporate influence in developing economies does not only emerge from MNCs but is also established and retained by SMEs CSR work....

  5. POLAND IN AND OUTSIDE THE EURO ZONE – RISKS AND BENEFITS IN THE LIGHT OF NEW POLITICAL AND ECONOMIC DETERMINANTS

    Directory of Open Access Journals (Sweden)

    Krzysztof Dobrowolski

    2017-09-01

    Full Text Available This article analyzes the benefits and risks of Poland adopting the euro in the light of current political and economic conditions. For this purpose, the following research methods were used: literature research, intuitive method and descriptive statistics. Poland has fulfilled the criteria for nominal convergence for two years, apart from participating in the ERM II mechanism, but the political situation in the country precludes the adoption of measures leading to the euro zone. The future shape of this zone is yet unknown, as its closer integration is planned. Theoretical analysis indicates that the process of globalization makes it difficult for medium-sized, open-economy countries to pursue autonomous monetary and exchange rate policy, so the loss of these instruments after the adoption of the euro should not jeopardize long-term economic growth, even in the case of asymmetric shocks. The market mechanisms of restoring the balance and fiscal policy may then be used. The economy will also benefit from the elimination of transaction costs and exchange rate risks in the euro zone. The analysis shows that it is possible to use the opportunity for faster GDP growth associated with the adoption of the common currency if the right economic policy is pursued. Adopting the euro may also incur costs. For banks it can be the loss of foreign exchange earnings and commissions on FX hedge transactions. For the economy it can be the possibility of speculative bubbles, as a result of excessive consumption growth, caused by possibly too low interest rates. Expected benefits should, however, outweigh any losses.

  6. Rotational characterization of methyl methacrylate: Internal dynamics and structure determination

    Science.gov (United States)

    Herbers, Sven; Wachsmuth, Dennis; Obenchain, Daniel A.; Grabow, Jens-Uwe

    2018-01-01

    Rotational constants, Watson's S centrifugal distortion coefficients, and internal rotation parameters of the two most stable conformers of methyl methacrylate were retrieved from the microwave spectrum. Splittings of rotational energy levels were caused by two non equivalent methyl tops. Constraining the centrifugal distortion coefficients and internal rotation parameters to the values of the main isotopologues, the rotational constants of all single substituted 13C and 18O isotopologues were determined. From these rotational constants the substitution structures and semi-empirical zero point structures of both conformers were precisely determined.

  7. Dynamic material behavior determination using single fiber impact

    NARCIS (Netherlands)

    Heru Utomo, B.D.; Broos, J.P.F.

    2007-01-01

    Mechanical properties of fiber materials are used as input data for amongst others impact simulations on fiber based structures to predict their behavior. Accurate predictions for such materials are still not possible, because the mechanical properties are usually determined (quasi-)statically or

  8. Farm Target Capital Structure: Dynamics, Determinants and Speed of Adjustment

    NARCIS (Netherlands)

    Tamirat, A.S.; Trujillo Barrera, A.A.; Pennings, J.M.E.

    2017-01-01

    The corporate finance literature has focused on explaining the determinants of firms target capital structure and speed of adjustment using the well-established theories such as pecking order, signaling and trade-off theories. However, less attention has been paid to understanding the financing

  9. The dynamics of stock price and determination of investor's cash ...

    African Journals Online (AJOL)

    Our aim is to also determine investor's cash flows valuation generated from the investment. The investor invested her short position into N number of investment firms. The firms in turn invest the short position of the investor into the stock and bond markets in order to hedge out the risks associated with the investor's portfolio.

  10. Balance of power theory meets Al Qaeda : dynamics of non-state actor balancing in postinternational politics

    OpenAIRE

    Denk, Aytaç

    2008-01-01

    Ankara : The Department of International Relations, Bilkent University, 2008. Thesis (Master's) -- Bilkent University, 2008. Includes bibliographical references leaves 196-207. The bulk of studies on the balance of power, which constitutes balance of power theory, suggest that only states are involved in balance of power dynamics. This thesis maintains that exclusion of non-state actors (NSAs) from balance of power dynamics constitutes a significant gap in balance of power t...

  11. 'Grounded' Politics

    DEFF Research Database (Denmark)

    Schmidt, Garbi

    2012-01-01

    play within one particular neighbourhood: Nørrebro in the Danish capital, Copenhagen. The article introduces the concept of grounded politics to analyse how groups of Muslim immigrants in Nørrebro use the space, relationships and history of the neighbourhood for identity political statements....... The article further describes how national political debates over the Muslim presence in Denmark affect identity political manifestations within Nørrebro. By using Duncan Bell’s concept of mythscape (Bell, 2003), the article shows how some political actors idealize Nørrebro’s past to contest the present...... ethnic and religious diversity of the neighbourhood and, further, to frame what they see as the deterioration of genuine Danish identity....

  12. DETERMINING THE DYNAMICS OF CUSTOMER SATISFACTION IN NATURAL GAS SECTOR

    Directory of Open Access Journals (Sweden)

    Naciye Güliz UĞUR

    2017-04-01

    Full Text Available The aim of this study is to determine the factors affecting customer satisfaction of the offered services in the natural gas distribution industry. Defining the factors affecting the satisfaction of the offered services are among the instruments which will be used to cope with increased competition and become a preferred institution. For this purpose a questionnaire is developed and implemented with 2043 participants in order to determine the factors of customer satisfaction in the natural gas sector. Within this research, the factors are examined according to several demographic variables to analyze if they differ depending the variables. Findings reveal that, in natural gas industry, customer satisfaction of the offered services vary according to ownership, age, gender, level of education and subscription period satisfaction.

  13. Supersymmetry breaking and dynamical determination of superstring parameters

    International Nuclear Information System (INIS)

    Casas, J.A.; Munoz, C.; Ross, G.G.

    1991-01-01

    The characteristics of the effective potentials coming from phenomenologically promising compactified superstring theories are examined, paying special attention to the supersymmetry breaking issue. We briefly review the status and some of the recent work on the subject and present a mechanism for generating the large gauge hierarchy by gaugino condensation effect in the case that the hidden sector possesses more than one condensate. Explicit examples based on orbifold compactification in which this is realized are also given. Minimization of the effective potential not only determines the gauge hierarchy but also fixes other important parameters of the theory, in particular the gauge coupling constant at the unification point and the expectation values of the moduli which give the size and shape of the compactified space. These get raesonable values which may, in turn, lead to a determination of the family mass hierarchy. (orig.)

  14. Experimental determination of the dynamics of an acoustically levitated sphere

    Energy Technology Data Exchange (ETDEWEB)

    Pérez, Nicolás, E-mail: nico@fisica.edu.uy [Centro Universitario de Paysandú, Universidad de la República, Paysandú (Uruguay); Andrade, Marco A. B. [Institute of Physics, University of São Paulo, São Paulo (Brazil); Canetti, Rafael [Facultad de Ingeniería, Universidad de la República, Montevideo (Uruguay); Adamowski, Julio C. [Department of Mechatronics and Mechanical Systems Engineering, Escola Politécnica, University of São Paulo, São Paulo (Brazil)

    2014-11-14

    Levitation of solids and liquids by ultrasonic standing waves is a promising technique to manipulate materials without contact. When a small particle is introduced in certain areas of a standing wave field, the acoustic radiation force pushes the particle to the pressure node. This movement is followed by oscillations of the levitated particle. Aiming to investigate the particle oscillations in acoustic levitation, this paper presents the experimental and numerical characterization of the dynamic behavior of a levitated sphere. To obtain the experimental response, a small sphere is lifted by the acoustic radiation force. After the sphere lift, it presents a damped oscillatory behavior, which is recorded by a high speed camera. To model this behavior, a mass-spring-damper system is proposed. In this model, the acoustic radiation force that acts on the sphere is theoretically predicted by the Gor'kov theory and the viscous forces are modeled by two damping terms, one term proportional to the square of the velocity and another term proportional to the particle velocity. The proposed model was experimentally verified by using different values of sound pressure amplitude. The comparison between numerical and experimental results shows that the model can accurately describe the oscillatory behavior of the sphere in an acoustic levitator.

  15. Experimental determination of the dynamics of an acoustically levitated sphere

    International Nuclear Information System (INIS)

    Pérez, Nicolás; Andrade, Marco A. B.; Canetti, Rafael; Adamowski, Julio C.

    2014-01-01

    Levitation of solids and liquids by ultrasonic standing waves is a promising technique to manipulate materials without contact. When a small particle is introduced in certain areas of a standing wave field, the acoustic radiation force pushes the particle to the pressure node. This movement is followed by oscillations of the levitated particle. Aiming to investigate the particle oscillations in acoustic levitation, this paper presents the experimental and numerical characterization of the dynamic behavior of a levitated sphere. To obtain the experimental response, a small sphere is lifted by the acoustic radiation force. After the sphere lift, it presents a damped oscillatory behavior, which is recorded by a high speed camera. To model this behavior, a mass-spring-damper system is proposed. In this model, the acoustic radiation force that acts on the sphere is theoretically predicted by the Gor'kov theory and the viscous forces are modeled by two damping terms, one term proportional to the square of the velocity and another term proportional to the particle velocity. The proposed model was experimentally verified by using different values of sound pressure amplitude. The comparison between numerical and experimental results shows that the model can accurately describe the oscillatory behavior of the sphere in an acoustic levitator

  16. Determining tumor blood flow parameters from dynamic image measurements

    Science.gov (United States)

    Libertini, Jessica M.

    2008-11-01

    Many recent cancer treatments focus on preventing angiogenesis, the process by which a tumor promotes the growth of large and efficient capillary beds for the increased nourishment required to support the tumor's rapid growth[l]. To measure the efficacy of these treatments in a timely fashion, there is an interest in using data from dynamic sequences of contrast-enhanced medical imaging, such as MRI and CT, to measure blood flow parameters such as perfusion, permeability-surface-area product, and the relative volumes of the plasma and extracellular-extravascular space. Starting with a two compartment model presented by the radiology community[2], this work challenges the application of a simplification to this problem, which was originally developed to model capillary reuptake[3]. While the primary result of this work is the demonstration of the inaccuracy of this simplification, the remainder of the paper is dedicated to presenting alternative methods for calculating the perfusion and plasma volume coefficients. These methods are applied to model data sets based on real patient data, and preliminary results are presented.

  17. Experimental determination of dynamic fracture toughness by J integral method

    International Nuclear Information System (INIS)

    Marandel, B.; Phelippeau, G.; Sanz, G.

    1982-01-01

    Fracture toughness tests are conducted on fatigue precracked compact tension specimens (IT - CT) loaded at K rates of about 2 x 10 4 MPa square root of m/s on a servo-hydraulic machine using a damped set-up. A high frequency alternating current system (10 kHz) is used for the detection of subcritical crack growth during loading. The analog signals from the clip gage, load cell, ram travel and potential drop system are fed into a magnetic tape recorder, filtered and converted to digital data. Load-time and load-displacement-potential curves are plotted and analysed automatically by two different methods, according to the fracture mode: in the lower part of the transition curve, Ksub(ID) is calculated from the maximum load at failure in the linear elastic range (ASTM E399); in the transition and upper shelf regions, Ksub(JD) is calculated from Jsub(ID) at initiation of ductile crack growth in the elastic plastic range. The experimental method described here is applied, as an example, to the study of a low-alloy, medium strength pressure vessel steel (A 508 Cl.3). A comparison is established between the toughness transition curves obtained under quasi-static (Ksub(Jc)) and dynamic (Ksub(JD)) conditions. (author)

  18. Experimental determination of dynamic parameters of an industrial robot

    Science.gov (United States)

    Banas, W.; Cwikła, G.; Foit, K.; Gwiazda, A.; Monica, Z.; Sekala, A.

    2017-08-01

    In an industry increasingly used are industrial robots. Commonly used are two basic methods of programming, on-line programming and off-line programming. In both cases, the programming consists in getting to the selected points record this position, and set the order of movement of the robot, and the introduction of logical tests. Such a program is easy to write, and it is suitable for most industrial applications. Especially when the process is known, respectively slow and unchanging. In this case, the program is being prepared for a universal model of the robot with the appropriate geometry and are checked only collisions. Is not taken into account the dynamics of the robot and how it will really behave while in motion. For this reason, the robot programmed to be tested at a reduced speed, which is raised gradually to the final value. Depending on the complexity of the move and the proximity of the elements it takes a lot of time. It is easy to notice that the robot at different speeds have different trajectories and behaves differently.

  19. Advancing methods for research on household water insecurity: Studying entitlements and capabilities, socio-cultural dynamics, and political processes, institutions and governance.

    Science.gov (United States)

    Wutich, Amber; Budds, Jessica; Eichelberger, Laura; Geere, Jo; Harris, Leila; Horney, Jennifer; Jepson, Wendy; Norman, Emma; O'Reilly, Kathleen; Pearson, Amber; Shah, Sameer; Shinn, Jamie; Simpson, Karen; Staddon, Chad; Stoler, Justin; Teodoro, Manuel P; Young, Sera

    2017-11-01

    Household water insecurity has serious implications for the health, livelihoods and wellbeing of people around the world. Existing methods to assess the state of household water insecurity focus largely on water quality, quantity or adequacy, source or reliability, and affordability. These methods have significant advantages in terms of their simplicity and comparability, but are widely recognized to oversimplify and underestimate the global burden of household water insecurity. In contrast, a broader definition of household water insecurity should include entitlements and human capabilities, sociocultural dynamics, and political institutions and processes. This paper proposes a mix of qualitative and quantitative methods that can be widely adopted across cultural, geographic, and demographic contexts to assess hard-to-measure dimensions of household water insecurity. In doing so, it critically evaluates existing methods for assessing household water insecurity and suggests ways in which methodological innovations advance a broader definition of household water insecurity.

  20. Political elites and foreign policy : democratization in Indonesia

    NARCIS (Netherlands)

    Wibisono, Aria Teguh Mahendra

    2009-01-01

    In the investigation, the domestic sources of foreign policy analytical framework were used to analyze the dynamics of elites in foreign policy making. After analyses of the results of mostly personal interviews and historical materials, it was determined that political elites do matter in foreign

  1. Domestic Terrorism, Official Response and the Politics of Black Gold ...

    African Journals Online (AJOL)

    Modern societies are embroiled with varied levels of conflict. The type and intensity of conflict is often historically determined and the causative factors are also closely tied to the social dynamics of the global community. Many factors tend to account for modern conflict. Apart from having political, economic, and ...

  2. Dynamic determination of equivalent CT source models for personalized dosimetry

    Directory of Open Access Journals (Sweden)

    Rosendahl Stephan

    2017-09-01

    Full Text Available With improvements in CT technology, the need for reliable patient-specific dosimetry increased in the recent years. The accuracy of Monte-Carlo simulations for absolute dose estimation is related to scanner specific information on the X-ray spectra of the scanner as well as the form filter geometries and compositions. In this work a mobile measurement setup is developed, which allows both to determine the X-ray spectra and equivalent form filter of a specific scanner from just one helical scan in less than 2 minutes.

  3. Private political archives

    Directory of Open Access Journals (Sweden)

    Waldemar Chorążyczewski

    2010-12-01

    Full Text Available "Private political archives" are understood by me as all acts collected intently by a private person. These acts are connected with the person's participation in political life and gathered in order to be used in public activity as the source of argumentation and information about factors and mechanisms of political processes. Private political archives of the first half of the XVI century were mainly created by royal servants, often with reference to their job duties. These duties could inspire to collect political acts for private purposes. During the reign of Sigismund Augustus, archives of gentry activists were developed to small extent and they mainly focused on parliamentary life. Private political archives were created outside the executionist movement, namely in the community gathered around the royal court. After 1572, Crown and Lithuanian magnates greatly influenced the creation of political archives. Archives of lesser gentry, scarce and poor, did not disappear completely. However, they became difficult for identification. Therefore, developmental process concerned exclusively documentary "treasure troves" created by magnates. They had the financial means and possibilities to create truly valuable political archives. The same as in the previous period the dynamisms of executionist movement was reflected in political archival documentation, now the creation of patronage system and clientele, or traditionally understood magnate oligarchy, (depending on the point of view corresponded best to archives development. The heritage of previous generations was the treasure trove of patterns and solutions. However, this trove was used selectively, on one hand giving up patterns and rights that were uncomfortable, and, on the other, giving the value of precedence to unexpected acts that gained more importance or even new content in changed political conditions. The application of interpretation principle raised interest in old acts and patterns

  4. Political News and Political Consciousness

    Science.gov (United States)

    Schertges, Claudia

    2007-01-01

    This article deals with mass media in modern democratic societies, using the example of Israeli news reports in German television (TV) news. Central to this interest are processes of mediating politics: political socialisation and education; that is to say, empowering citizens via TV news to participate in democratic processes. The article…

  5. From space and from the ground: determining forest dynamics in settlement projects in the Brazilian Amazon

    NARCIS (Netherlands)

    Diniz, F.H.; Kok, K.; Hott, H.C.; Hoogstra-Klein, M.A.; Arts, B.J.M.

    2013-01-01

    Deforestation in the Brazilian Amazon has been partially attributed to the establishment of settlement projects. Acknowledging the difficulties in quantifying the rate and patterns of deforestation, the objective of this paper is to determine forest dynamics (deforestation and reforestation) in

  6. Determination of static and dynamic reactivity effects in KNK II

    International Nuclear Information System (INIS)

    Essig, C.

    1987-11-01

    In the frame of a pre-study of the KNK II test program two series of experiments related to inherent safety characteristics of sodium cooled breeder reactors have been elaborated, which are one basis for the performance of experiments of the Loss Of Flow (LOF) type and the Loss Of Heat Sink (LOHS) type. Tests of this type at KNK II would -different from the earlier tests at RAPSODIE and EBR-II- provide a demonstration of the inherently safe performance in case of a significantly non-zero Doppler effect. With a suitable execution, the foreseen series of experiments allow, as explained in this report, a substantial separation of the reactivity contributions and the determination of reactivity effects, i.e. the time constants of the recouplings. The performance and evaluation of these experiments with respect to the inherent safety potential will once more underline the distinguished role of KNK II for the development of fast breeders [de

  7. Hegemons, Leaders and Followers: A Game-Theoretic Approach to the Postwar Dynamics of International Political Economy

    Directory of Open Access Journals (Sweden)

    Kjell Hausken

    2015-08-01

    Full Text Available The article introduces the concept of hegemony to leadership theory, which has developed mainly as a critique of hegemonic stability theory. We argue that it makes sense to combine the two theories by introducing the concept of 'size' into neoliberal thinking about International Political Economy. We accept the neo-institutional hypothesis that a hegemon is not needed to provide public goods, and demonstrate with non-cooperative games how multiple leaders may jointly provide public goods. A game-theoretic model is developed illustrating with Nash equilibria the conditions under which a hegemon rationally switches from hegemony to leadership. It also shows why followers rationally switch from free-riding in their consumption of the public goods to taking part in leading, in the sense of contributing to covering the cost of the production of the public goods. The emergence of joint leadership leads to multiple equilibria in the sense of allowing for multiple stable leadership constellations. The actors are in a mixed-motive or coordination game where they have different preferences for the equilibria, and thus different preferences for which strategies to choose, and for who is to take part in covering the cost of the production of the public goods. Two aspects of joint leadership 'after hegemony' are treated, namely coercive and benevolent leadership on the one hand, and collective action in the sense of joint leadership on the other hand. Finally, future leadership constellations and the quest for international order are discussed.

  8. Gramsci between Machiavelli and Marx: from negative determination of human to ontonegative determination of politics Gramsci entre Maquiavel e Marx: da negatividade do homem a ontonegatividade da política

    Directory of Open Access Journals (Sweden)

    Claudinei Cássio Rezende

    2008-12-01

    Full Text Available In one of his central categories, Gramsci establishes a connection between the Machiavellian and Marxian political conceptions, in a manner that each one writes to the revolutionary class of their time. Nevertheless, a more rigorous critic at Marx’s propositions unveils to us that the proletarian class isn’t just the progressist class of his time, in the same manner that the bourgeois was in the Iluminism, like Gramsci thinks, but it is, actually, the universal sphere and the only one qualifi ed to accomplish a human emancipation. Consequently, the connection between Machiavelli and Marx does not exist, once Marx conceives the ontological work as the central attribute of humanization, and conceives the politics as temporary; while Machiavelli conceives the politics as the founder act of all sociability. Keywords: Machiavelli. Marx. Gramsci. Ontonegative determination of politics. Human emancipation. Em uma de suas categorias centrais, Gramsci estabelece uma identidade direta entre as politicidades maquiaveliana e marxiana, de sorte que cada um escreve para a classe da vanguarda política de sua época. No entanto, uma crítica mais rigorosa aos escritos marxianos nos revela que o proletariado não é somente a classe progressista de sua época, da maneira que a burguesia fora no iluminismo, como quer Gramsci, mas é, em verdade, a esfera universal e a única capaz de levar a cabo uma emancipação humana total. Doravante, a identidade entre Marx e Maquiavel inexiste na medida em que o primeiro, de magnitude filosófica distinta, concebe o trabalho ontologicamente como atributo central da humanização, apreendendo a política como uma figura transitória superável, enquanto o segundo concebe a política como o ato fundador de toda sociabilidade. Palavras-chave: Maquiavel. Marx. Gramsci. Ontonegatividade da política. Emancipação humana.

  9. In situ structure and dynamics of DNA origami determined through molecular dynamics simulations.

    Science.gov (United States)

    Yoo, Jejoong; Aksimentiev, Aleksei

    2013-12-10

    The DNA origami method permits folding of long single-stranded DNA into complex 3D structures with subnanometer precision. Transmission electron microscopy, atomic force microscopy, and recently cryo-EM tomography have been used to characterize the properties of such DNA origami objects, however their microscopic structures and dynamics have remained unknown. Here, we report the results of all-atom molecular dynamics simulations that characterized the structural and mechanical properties of DNA origami objects in unprecedented microscopic detail. When simulated in an aqueous environment, the structures of DNA origami objects depart from their idealized targets as a result of steric, electrostatic, and solvent-mediated forces. Whereas the global structural features of such relaxed conformations conform to the target designs, local deformations are abundant and vary in magnitude along the structures. In contrast to their free-solution conformation, the Holliday junctions in the DNA origami structures adopt a left-handed antiparallel conformation. We find the DNA origami structures undergo considerable temporal fluctuations on both local and global scales. Analysis of such structural fluctuations reveals the local mechanical properties of the DNA origami objects. The lattice type of the structures considerably affects global mechanical properties such as bending rigidity. Our study demonstrates the potential of all-atom molecular dynamics simulations to play a considerable role in future development of the DNA origami field by providing accurate, quantitative assessment of local and global structural and mechanical properties of DNA origami objects.

  10. Turkish Political Market and the Perception of Political Parties

    Directory of Open Access Journals (Sweden)

    Cihat Polat

    2015-06-01

    Full Text Available This study attempts to describe the Turkish political market and determine where and how Turkish political parties are perceived by voters. The study uses a two-dimensional map to determine the voter perceptions of the parties in the Turkish political market based on a survey questionnaire applied to 400 young voters. It also investigates whether there are any major differences in the perception of parties in the political space based on voter ideologies. The study finds that young voters have clear perceptions of the positions of Turkish parties. It also finds that voter perceptions of parties vary based on voters’ ideological positions.

  11. Political “genotype” as a structural element of political culture

    Directory of Open Access Journals (Sweden)

    N. V. Karpova

    2016-01-01

    Full Text Available The article is devoted to the issue of genetic foundations of political culture in the context of the socio-political system changes. The author elaborates the concept of “political genotype” as a sustainable structural element of political culture that determines its content and the possibility of permissible variation. In this paper the main forms of existence of political genotype and its functions are also investigated; and “genetic” mechanism of political culture succession is explored.

  12. Different meanings of the social dominance orientation concept: predicting political attitudes over time.

    Science.gov (United States)

    Jetten, Jolanda; Iyer, Aarti

    2010-06-01

    We examined predictors of political attitude change by assessing the independent and interactive effect of social dominance orientation (SDO) as a context-dependent versus an individual difference construct. In a longitudinal study, British students' political orientation was assessed before entering university (T1) and after being at university for 2 months (T2) and 6 months (T3; N=109). Results showed that initial SDO (T1) did not predict political attitudes change nor did it predict self-selected entry into course with hierarchy enhancing or hierarchy-attenuating ideologies. More support was obtained for a contextually determined model whereby SDO (T2) mediated the relationship between social class (T1) and political attitude change (T3). We also found support for mediated moderation in accounting for effects of initial SDO on political attitude change. Findings suggest that SDO as a concept that is sensitive to group dynamics is best suited to explain shifts in political attitudes.

  13. Political symbols and political transitions

    Directory of Open Access Journals (Sweden)

    Herrero de Miñón, Miguel

    2006-11-01

    Full Text Available Politics, Law and Psychology are fields that come together in the symbolic. This text takes evidence from those three areas to develop an analysis of political symbols and political transitions. The development of the analysis goes through three stages. The first succinctly describes the concept of transition and its meaning. The second closely examines the notion of the symbol, in terms of its definition, to explain aspects that allow us to understand it, characterise it and make its functions clear. Finally, from the author's experience as a witness and as an actor, I suggest three ways of understanding symbols in the processes of political transition: as symbols of change, as symbols of acknowledgment, and as symbols of support.

  14. The determination of the attitude and attitude dynamics of TeamSat

    DEFF Research Database (Denmark)

    Betto, Maurizio; Jørgensen, John Leif; Riis, Troels

    1999-01-01

    , in space, multiple autonomous processes intended for spacecraft applications such as autonomous star identification, attitude determination and identification and tracking of non-stellar objects, imaging and real-time compression of image and science data for further ground analysis. AVS successfully...... determined the attitude and attitude dynamics of TeamSat....

  15. Education and Political Development

    Science.gov (United States)

    Massialas, Byron G.

    1977-01-01

    Considers how education is related to politics with the focus on political socialization, political recruitment, i.e., the selection and training of political elites, and political integration or nation building of groups of people. (Author/RK)

  16. From Natural Monopoly to Public Utility: Technological Determinism and the Political Economy of Infrastructure in Progressive-Era America.

    Science.gov (United States)

    Plaiss, Adam

    In present-day debates regarding telecommunication policy, one frequently hears the terms natural monopoly and public utility. This article investigates the origins of these ideas, finding that Richard T. Ely-a celebrated American economist of the late nineteenth century-embedded in the term "natural monopoly" a narrative of technological determinism. By arguing that certain services had monopolizing tendencies hardwired into them, Ely argued for their regulation. Ely's theory of natural monopoly formed the basis of Wisconsin's 1907 public utilities law, which served as a model for many other states' regulatory policies. The modern notion of public utility thus carries with it the technological determinism of Ely's natural monopoly idea. By tracing the lineage of these two terms, this article recaptures the influence that activists and progressive politicians exercised over the formation of large technological systems during the Second Industrial Revolution.

  17. Political ecology

    International Nuclear Information System (INIS)

    Strohm, H.

    1979-01-01

    Using facts and examples, this didactically structures textbook gives an insight into the extent and consequences of the damage to the environment, with the subjects - fundamentals of ecology; - population and food problems; - the energy problem; - economic growth; scarcity of resources, recycling; - ground, water, and air pollution, - city and traffic problems; - work protection and medical care; - political alternatives and 'soft technologies'. The analysis of the political and economic reasons is combined with social and technical alternatives from which demands to be made and measures to be taken can be derived for individuals, citizens' interest groups, political groups and trade unions. Teaching models intend to help teachers to work on specific problems of ecology. (orig.) [de

  18. Political priorities

    DEFF Research Database (Denmark)

    Ren, Jingzheng

    2016-01-01

    …THE POLITICAL LEADERS of the local government of Chongqing, China, vigorously promote a low-carbon economy and sustainable development to mitigate environmental pollution. Accordingly, research grants focused on this issue were supported by the government, and our group obtained a grant for a pr......…THE POLITICAL LEADERS of the local government of Chongqing, China, vigorously promote a low-carbon economy and sustainable development to mitigate environmental pollution. Accordingly, research grants focused on this issue were supported by the government, and our group obtained a grant...... for a project about industrial park planning and design.…In my view, political priorities based on correct decision-making and market requirements are beneficial for researchers....

  19. Predator Politics

    Directory of Open Access Journals (Sweden)

    Mary Louisa Cappelli

    2017-01-01

    Full Text Available Edward Abbey’s Desert Solitaire and Barbara Kingsolver’s Prodigal Summer urges readers to see coyotes as crucial members of the natural community whose predation is essential for the maintenance of biodiversity and ecological stability. Their cultural production provides a human story of ecocritical engagement for understanding the cascading effects of removing top predators from their ecosystems. By envisioning biocentric possibilities within place-based and scientific contexts, Edward Abbey and Barbara Kingsolver share a common theme of political ecology: political processes shape ecological conditions. A close reading of Edward Abbey’s Desert Solitaire and Barbara Kingsolver’s Prodigal Summer provides a literary entryway to connect research, arguments, and discourse across disciplines tasking readers to engage in political discussions of environmental sustainability and to consider viable solutions to preserve the ecological diversity of our predator populations and ecosystems.

  20. Dynamics and Determinants of Supplemental Nutrition Assistance Program Participation from 2008 to 2012

    OpenAIRE

    James Mabli; Thomas Godfrey; Nancy Wemmerus; Joshua Leftin; Stephen Tordella

    2014-01-01

    Mathematica nutrition experts recently conducted research on the dynamics and determinants of Supplemental Nutrition Assistance Program (SNAP) participation. A study examines SNAP participation dynamics between October 2008 and December 2012. In particular, it describes patterns of SNAP entry, length of time on the program, and re-entry for policy-relevant subgroups, and discusses how these patterns have changed over time. This work was conducted in conjunction with an analysis presented on t...

  1. Economic Integration and Political Disintegration

    OpenAIRE

    Alberto Alesina; Enrico Spolaore; Romain Wacziarg

    1997-01-01

    Trade liberalization and political separatism go hand in hand. In a world of trade restrictions, large countries enjoy economic benefits because political boundaries determine the size of the market. In a world of free trade and global markets even relatively small cultural, linguistic or ethnic groups can benefit from forming small and homogeneous political jurisdictions that trade peacefully and are economically integrated with others. This paper provides a formal model of the relationship ...

  2. Political Instability and Economic Growth

    OpenAIRE

    Alberto Alesina; Sule Ozler; Nouriel Roubini; Phillip Swagel

    1992-01-01

    This paper investigates the relationship between political instability and per capita GDP growth in a sample of 113 countries for the period 1950-1982. We define ?political instability? as the propensity of a government collapse, and we estimate a model in which political instability and economic growth are jointly determined. The main result of this paper is that in countries and time periods with a high propensity of government collapse, growth is significantly lower than otherwise. This ef...

  3. How Internal Political Efficacy Translates Political Knowledge Into Political Participation

    Science.gov (United States)

    Reichert, Frank

    2016-01-01

    This study presents evidence for the mediation effect of political knowledge through political self-efficacy (i.e. internal political efficacy) in the prediction of political participation. It employs an action theoretic approach—by and large grounded on the Theory of Planned Behaviour—and uses data from the German Longitudinal Election Study to examine whether political knowledge has distinct direct effects on voting, conventional, and/or unconventional political participation. It argues that political knowledge raises internal political efficacy and thereby indirectly increases the chance that a citizen will participate in politics. The results of mediated multiple regression analyses yield evidence that political knowledge indeed translates into internal political efficacy, thus it affects political participation of various kinds indirectly. However, internal political efficacy and intentions to participate politically yield simultaneous direct effects only on conventional political participation. Sequentially mediated effects appear for voting and conventional political participation, with political knowledge being mediated by internal political efficacy and subsequently also by behavioural intentions. The mediation patterns for unconventional political participation are less clear though. The discussion accounts for restrictions of this study and points to questions for answer by future research. PMID:27298633

  4. Testing Object-Oriented Programs using Dynamic Aspects and Non-Determinism

    DEFF Research Database (Denmark)

    Achenbach, Michael; Ostermann, Klaus

    2010-01-01

    decisions exposing private data. We present an approach that both improves the expressiveness of test cases using non-deterministic choice and reduces design modifications using dynamic aspect-oriented programming techniques. Non-deterministic choice facilitates local definitions of multiple executions...... without parameterization or generation of tests. It also eases modelling naturally non-deterministic program features like IO or multi-threading in integration tests. Dynamic AOP facilitates powerful design adaptations without exposing test features, keeping the scope of these adaptations local to each...... test. We also combine non-determinism and dynamic aspects in a new approach to testing multi-threaded programs using co-routines....

  5. Politics, policies and processes: a multidisciplinary and multimethods research programme on policies on the social determinants of health inequity in Australia.

    Science.gov (United States)

    Baum, Fran; Friel, Sharon

    2017-12-21

    The development and implementation of multisectoral policy to improve health and reduce health inequities has been slow and uneven. Evidence is largely focused on the facts of health inequities rather than understanding the political and policy processes. This 5-year funded programme of research investigates how these processes could function more effectively to improve equitable population health. The programme of work is organised in four work packages using four themes (macroeconomics and infrastructure, land use and urban environments, health systems and racism) related to the structural drivers shaping the distribution of power, money and resources and daily living conditions. Policy case studies will use publicly available documents (policy documents, published evaluations, media coverage) and interviews with informants (policy-makers, former politicians, civil society, private sector) (~25 per case). NVIVO software will be used to analyse the documents to see how 'social and health equity' is included and conceptualised. The interview data will include qualitative descriptive and theory-driven critical discourse analysis. Our quantitative methodological work assessing the impact of public policy on health equity is experimental that is in its infancy but promises to provide the type of evidence demanded by policy-makers. Our programme is recognising the inherently political nature of the uptake, formulation and implementation of policy. The early stages of our work indicate its feasibility. Our work is aided by a Critical Policy Reference Group. Multiple ethics approvals have been obtained with the foundation approval from the Social and Behavioural Ethics Committee, Flinders University (Project No: 6786).The theoretical, methodological and policy engagement processes established will provide improved evidence for policy-makers who wish to reduce health inequities and inform a new generation of policy savvy knowledge on social determinants. © Article author

  6. Political Socialization.

    Science.gov (United States)

    Himmelweit, Hilde T.

    1983-01-01

    Described are two longitudinal studies, one British, the other American, which examined the influences of varied socializing agents--e.g., family, school, peer groups--on voting behavior. The studies emphasized the hitherto unappreciated importance of the political, social, and economic climate of society and its changes on socialization. (CS)

  7. Politics 3

    Science.gov (United States)

    Maslow, Abraham

    1977-01-01

    This article expresses some last thoughts from Abraham Maslow on his vision of humanistic psychology. He suggests that the two main problems of creating the good person and the good society are interwoven inextricably. He gives some social and political mechanisms which would enhance desirable personal growth and considers the main tasks of…

  8. Implementation Politics

    DEFF Research Database (Denmark)

    Hegland, Troels Jacob; Raakjær, Jesper

    2008-01-01

    level are supplemented or even replaced by national priorities. The chapter concludes that in order to capture the domestic politics associated with CFP implementation in Denmark, it is important to understand the policy process as a synergistic interaction between dominant interests, policy alliances...

  9. Political Rationality

    DEFF Research Database (Denmark)

    Solhaug, Trond; Kristensen, Niels Nørgaard

    The very idea about democracies is public participation in elections, decision-making and/or public engagement. The democratic participation distributes power among ordinary people and serve to legitimize decisions in public affairs and is a vital characteristic of a political culture.”The term...

  10. Framing politics

    NARCIS (Netherlands)

    Lecheler, S.K.

    2010-01-01

    This dissertation supplies a number of research findings that add to a theory of news framing effects, and also to the understanding of the role media effects play in political communication. We show that researchers must think more about what actually constitutes a framing effect, and that a

  11. The application of virtual prototyping methods to determine the dynamic parameters of mobile robot

    Science.gov (United States)

    Kurc, Krzysztof; Szybicki, Dariusz; Burghardt, Andrzej; Muszyńska, Magdalena

    2016-04-01

    The paper presents methods used to determine the parameters necessary to build a mathematical model of an underwater robot with a crawler drive. The parameters present in the dynamics equation will be determined by means of advanced mechatronic design tools, including: CAD/CAE software andMES modules. The virtual prototyping process is described as well as the various possible uses (design adaptability) depending on the optional accessories added to the vehicle. A mathematical model is presented to show the kinematics and dynamics of the underwater crawler robot, essential for the design stage.

  12. An Application of the Theory of Open Quantum Systems to Model the Dynamics of Party Governance in the US Political System

    Science.gov (United States)

    Khrennikova, Polina; Haven, Emmanuel; Khrennikov, Andrei

    2014-04-01

    The Gorini-Kossakowski-Sudarshan-Lindblad equation allows us to model the process of decision making in US elections. The crucial point we attempt to make is that the voter's mental state can be represented as a superposition of two possible choices for either republicans or democrats. However, reality dictates a more complicated situation: typically a voter participates in two elections, i.e. the congress and the presidential elections. In both elections the voter has to decide between two choices. This very feature of the US election system requires that the mental state is represented by a 2-qubit state corresponding to the superposition of 4 different choices. The main issue is to describe the dynamics of the voters' mental states taking into account the mental and political environment. What is novel in this paper is that we apply the theory of open quantum systems to social science. The quantum master equation describes the resolution of uncertainty (represented in the form of superposition) to a definite choice.

  13. Maintaining Identity Political Culture In Indonesia

    Science.gov (United States)

    Fauzi, AM; Sudrajat, A.; Affandi, A.; Raditya, A.

    2018-01-01

    This study investigates the portrayal of traditional political cultures in West Kalimantan Province, a growing of election process. Results showed that Political life in Indonesia leads to modern political culture after experiencing a change of paradigm of political life. Political life in Indonesia leads to modern political culture after experiencing a change of paradigm of political life. Beginning Indonesia’s independence in the Old Order Phase, the politics used using the ideological paradigm, subsequent to the New Order Period used the political paradigm of unification and simplification of political parties but in practice it became the strategy of the State’s rulers to facilitate subjugating its citizens. After entering the reform era, several phenomena of political culture are displayed, some are using modern paradigm by giving women the widest possible role in political parties, and so on. Besides that there is the opposite of displaying and practicing traditional political culture, this is as it runs in West Borneo Province. The change of political culture in the modern direction is different from the political culture of the citizens in terms of who will be chosen, most West Borneo Province residents determine their political choice by using traditional patterns.

  14. Bilateral comparison for determining the dynamic characteristic values of contact thermometers in fluids

    Directory of Open Access Journals (Sweden)

    S. Augustin

    2018-05-01

    Full Text Available In applicable standards and sets of rules (VDI/VDE, 2014; DIN, 2010, 2017, recommendations are made concerning the types of experiments for determining the dynamic parameters in fluids (flowing water and flowing air under well-defined conditions. In the data sheets of the thermometer manufacturers, quite different specifications can be found, such as time percentage values or time constants. Only a few thermometer manufacturers specify the medium and flow conditions under which these parameters have been determined. Above all, it is not common practice to indicate a measurement uncertainty for the dynamic parameters found. In Augustin et al. (2017, a first model for the indication of the measurement uncertainty of dynamic parameters in flowing air was presented.The present paper describes the results of a bilateral comparison made for the first time for determining dynamic parameters in the laboratories of the JUMO GmbH & Co. KG Fulda company and at the Institute of Process Measurement and Sensor Technology of the TU Ilmenau. In doing so, two type-N thermocouples with different diameters were investigated in experimental facilities with flowing water and flowing air. Subsequently, the dynamic parameters found were compared with each other. The differences revealed mainly resulted from plant-specific parameters.

  15. LOSS FACTOR AND DYNAMIC YOUNG MODULUS DETERMINATION FOR COMPOSITE SANDWICH BARS REINFORCED WITH STEEL FABRIC

    Directory of Open Access Journals (Sweden)

    Cosmin-Mihai MIRIŢOIU

    2015-05-01

    Full Text Available In this paper I have build some composite sandwich bars. For these bars I have determined the dynamic response by recording their free vibrations. These bars have the core made of polypropylene honeycomb with upper and lower layers reinforced with steel wire mesh. For these bars I have determined the the eigenfrequency of the first eigenmode in this way: the bar was embedded at one end and free at the other where there was placed an accelerometer at 10 mm distance from the edge and I applied an initial force at the free end. I have determined the eigenfrequency because I will use its values for the loss factor and dynamic Young modulus determination.

  16. ``Political'' Science

    Science.gov (United States)

    Berzak Hopkins, Laura

    2013-03-01

    Politics and policy affect all of us, both as scientists and as citizens, and issues ranging from laboratory budgets to arms control treaties clearly require research problem-solving skills and technical expertise. There is a critical role for scientists in each aspect of the political system, and in fact, we as a society need more scientists to take part in politics. Furthermore, the research we pursue has important societal applications and is fascinating! We have a right and a responsibility to share our scientific knowledge not only with each other, but with the general public as well. So, why are we as a community of scientists reticent in the public arena, hesitant to enter politics, and even at times unsupportive of our peers who transition into governmental roles? In this time of fiscal constraint, when difficult research funding (and de-funding) choices are regularly being made, we as scientists must step up to the plate, reach across the aisle, and explain why what we do is fascinating, inspiring, and important, not just to us, but to society as a whole. A range of policy-relevant roles exists inside and outside the laboratory, such as Congressional Fellowships. Each year the Congressional Fellowships program brings together approximately thirty scientists at all stages of their careers to serve as scientific advisors in a variety of offices in the U.S. Senate and House of Representatives. Although the jump from lab to lobbying meetings can be frustrating, the transition can also be intriguing. Firsthand experience with the ``how'' and ``why'' (or lack thereof) of politics and policy is invaluable and provides a unique opportunity to expand and broaden one's background. The opportunity to work on Capitol Hill is unparalleled, particularly because our nation has a definite need for scientists with the inclination and interest to inform and develop policy. But, whatever role you decide to take, from contributing scientific news to local publications to

  17. Gateway Political Behaviors: The Frequency and Consequences of Low-Cost Political Engagement on Social Media

    Directory of Open Access Journals (Sweden)

    Leticia Bode

    2017-11-01

    Full Text Available The purpose of this article is to determine to what extent engagement in easy political behaviors on social media occurs across the range of political interest, what predicts such engagement, and what effect such engagement may have on other political behaviors. It pits the idea that social media may activate the politically uninterested against the idea that social media is just another outlet for the politically interested to demonstrate their engagement. Analyzing survey data collected by the Pew Research Center, it concludes that many people, including the politically uninterested, do engage in easy political behaviors like liking and commenting on political content on social media. When they do, it can lead to greater political activity offline. However, those most likely to engage in easy political behaviors are also those who engage in harder political behaviors, offering support for both the interest and activation hypotheses.

  18. Main Determinants of the Mutual Funds Dynamics in Romania before and after the Financial Crisis

    OpenAIRE

    Radu Ioana; Nistor Ioan Alin; Ciupac-Ulici Maria Lenuþa

    2012-01-01

    In an attempt to identify the main determinants of attraction or inhibitive factors for investments, the current paper evaluates the Romanian mutual fund market development. Using a regression analysis on quarterly data during 2004Q3 – 2012Q2, the study explores the impact of current financial crisis on mutual funds. The paper is organized as it follows. Part 2 presents a brief literature review and extracts the studies that appreciate best the determinants of the mutual funds dynamics. Next ...

  19. Exploring Women's Understanding of Politics, Political Contestation ...

    International Development Research Centre (IDRC) Digital Library (Canada)

    Exploring Women's Understanding of Politics, Political Contestation and Gender ... First, researchers will explore women's political leadership and the extent to ... Sign up now for IDRC news and views sent directly to your inbox each month.

  20. Political Anger: The Basis for Contemporary Lack of Civility in ...

    African Journals Online (AJOL)

    The incidence of political anger and its dynamics calls for concern in the political arena. It has left in its trail all forms of casualties and threat to political and democratic stability in Nigeria. This paper argued that high stakes in politics, limited avenues for ventilating anger, the tendency to focus on majority ethnic groups while ...

  1. Sex ratio selection and multi-factorial sex determination in the housefly : A dynamic model

    NARCIS (Netherlands)

    Kozielska, M.A.; Pen, I.R.; Beukeboom, L.W.; Weissing, F.J.

    Sex determining (SD) mechanisms are highly variable between different taxonomic groups and appear to change relatively quickly during evolution. Sex ratio selection could be a dominant force causing such changes. We investigate theoretically the effect of sex ratio selection on the dynamics of a

  2. Determination of the smoke-plume heights and their dynamics with ground-based scanning LIDAR

    Science.gov (United States)

    V. Kovalev; A. Petkov; C. Wold; S. Urbanski; W. M. Hao

    2015-01-01

    Lidar-data processing techniques are analyzed, which allow determining smoke-plume heights and their dynamics and can be helpful for the improvement of smoke dispersion and air quality models. The data processing algorithms considered in the paper are based on the analysis of two alternative characteristics related to the smoke dispersion process: the regularized...

  3. Error compensation of single-antenna attitude determination using GNSS for Low-dynamic applications

    Science.gov (United States)

    Chen, Wen; Yu, Chao; Cai, Miaomiao

    2017-04-01

    GNSS-based single-antenna pseudo-attitude determination method has attracted more and more attention from the field of high-dynamic navigation due to its low cost, low system complexity, and no temporal accumulated errors. Related researches indicate that this method can be an important complement or even an alternative to the traditional sensors for general accuracy requirement (such as small UAV navigation). The application of single-antenna attitude determining method to low-dynamic carrier has just started. Different from the traditional multi-antenna attitude measurement technique, the pseudo-attitude attitude determination method calculates the rotation angle of the carrier trajectory relative to the earth. Thus it inevitably contains some deviations comparing with the real attitude angle. In low-dynamic application, these deviations are particularly noticeable, which may not be ignored. The causes of the deviations can be roughly classified into three categories, including the measurement error, the offset error, and the lateral error. Empirical correction strategies for the formal two errors have been promoted in previous study, but lack of theoretical support. In this paper, we will provide quantitative description of the three type of errors and discuss the related error compensation methods. Vehicle and shipborne experiments were carried out to verify the feasibility of the proposed correction methods. Keywords: Error compensation; Single-antenna; GNSS; Attitude determination; Low-dynamic

  4. Underground Politics

    DEFF Research Database (Denmark)

    Galis, Vasilis; Summerton, Jane

    Public spaces are often contested sites involving the political use of sociomaterial arrangements to check, control and filter the flow of people (see Virilio 1977, 1996). Such arrangements can include configurations of state-of-the-art policing technologies for delineating and demarcating borders...... status updates on identity checks at the metro stations in Stockholm and reports on locations and time of ticket controls for warning travelers. Thus the attempts by authorities to exert control over the (spatial) arena of the underground is circumvented by the effective developing of an alternative...... infrastructural "underground" consisting of assemblages of technologies, activists, immigrants without papers, texts and emails, homes, smart phones and computers. Investigating the embedded politics of contested spatial arrangements as characteristic of specific societies one can discover not only the uses...

  5. Women Making Politics in Rural Senegal

    DEFF Research Database (Denmark)

    Prag, Ebbe

    Since the Senegalese local elections in 1996, women have increasingly entered the local political arena in rural councils and municipalities. This book addresses the question of how women act politically, what interests they defend and how they influence resource allocation. The author argues...... that structural changes have opened space for resourceful women to enter local politics. However women's mobilisation does not radically break with the clientelist and factional dynamics of Senegalese politics. Women leaders often start their career in party politics as result of co-optation by male political...... leaders, but they do not continue as passive objects of male manipulation. Senegalese female politicians demonstrate that they are capable of taking up political positions using the local women's groups and the Women's Federation as political backyard and support. They create networks that can...

  6. The Impact of Political Advertising through Social Networking Sites on Egyptians’ Political Orientations and Choices

    OpenAIRE

    khaled A. Gad

    2014-01-01

    This paper examines the influence of political advertising through social networking sites on Egyptians’ political orientations and choices. The objective of this paper is to determine how Egyptians’ social networking sites users are interested in political promoting campaigns and how they deal with such campaigns. Also the paper measures the impact of these campaigns in influencing the current political events, the individuals’ political choices and orientations, and the extent to which they...

  7. Comparison of different methods for the determination of dynamic characteristics of low velocity anemometers

    DEFF Research Database (Denmark)

    Melikov, Arsen Krikor; Popiolek, Z.

    2004-01-01

    Three methods for determining the dynamic characteristics of low velocity thermal anemometers were compared. They were: step-up velocity change and step-down velocity change methods and a method based on sinusoidal type velocity fluctuations. Two low velocity thermal anemometers with omnidirectio......Three methods for determining the dynamic characteristics of low velocity thermal anemometers were compared. They were: step-up velocity change and step-down velocity change methods and a method based on sinusoidal type velocity fluctuations. Two low velocity thermal anemometers...... with omnidirectional velocity sensors were tested. The results identify differences in frequency response of low velocity anemometers determined by the three methods. The time constant and the response time determined by the step-up velocity change method and the step-down velocity change method may be substantially...... different and insufficient for describing the frequency response of all low velocity thermal anemometers. Therefore the upper frequency, determined in tests with sinusoidal velocity fluctuations, is recommended to be used in indoor climate standards as a single parameter describing the dynamic...

  8. Thickness determination in textile material design: dynamic modeling and numerical algorithms

    International Nuclear Information System (INIS)

    Xu, Dinghua; Ge, Meibao

    2012-01-01

    Textile material design is of paramount importance in the study of functional clothing design. It is therefore important to determine the dynamic heat and moisture transfer characteristics in the human body–clothing–environment system, which directly determine the heat–moisture comfort level of the human body. Based on a model of dynamic heat and moisture transfer with condensation in porous fabric at low temperature, this paper presents a new inverse problem of textile thickness determination (IPTTD). Adopting the idea of the least-squares method, we formulate the IPTTD into a function minimization problem. By means of the finite-difference method, quasi-solution method and direct search method for one-dimensional minimization problems, we construct iterative algorithms of the approximated solution for the IPTTD. Numerical simulation results validate the formulation of the IPTTD and demonstrate the effectiveness of the proposed numerical algorithms. (paper)

  9. The Global Positioning System (GPS) and attitude determination: Applications and activities in the Flight Dynamics Division

    Science.gov (United States)

    Ketchum, Eleanor; Garrick, Joe

    1995-01-01

    The application of GPS to spacecraft attitude determination is a new and growing field. Although the theoretical literature is extensive, space flight testing is currently sparse and inadequate. As an operations organization, the Flight Dynamics Division (FDD) has the responsibility to investigate this new technology, and determine how best to implement the innovation to provide adequate support for future missions. This paper presents some of the current efforts within FDD with regard to GPS attitude determination. This effort specifically addresses institutional capabilities to accommodate a new type of sensor, critically evaluating the literature for recent advancements, and in examining some available -albeit crude- flight data.

  10. Determination of the coefficient of dynamic friction between coatings of alumina and metallic materials

    Science.gov (United States)

    Santos, A.; Córdoba, E.; Ramírez, Z.; Sierra, C.; Ortega, Y.

    2017-12-01

    This project aims to determine the coefficient of dynamic friction between micrometric size coatings of alumina and metallic materials (Steel and aluminium); the methodology used to achieve the proposed objective consisted of 4 phases, in the first one was developed a procedure that allowed, from a Pin on Disk machine built based on the specifications given by the ASTM G99-05 standard (Standard test method for wear tests with a Pin on Disk machine), to determine the coefficient of dynamic friction between two materials in contact; subsequently the methodology was verified through tests between steel-steel and steel-aluminium, due to these values are widely reported in the literature; as a third step, deposits of alumina particles of micrometric size were made on a steel substrate through thermal spraying by flame; finally, the tests were carried out between pins of steel of aluminium and alumina coating to determine the coefficients of dynamic friction between these two surfaces. The results of the project allowed to verify that the developed methodology is valid to obtain coefficients of dynamic friction between surfaces in contact since the percentages of error were of 3.5% and 2.1% for steel-steel and aluminium-steel, respectively; additionally, it was found that the coefficient of friction between steel-alumina coatings is 0.36 and aluminium-alumina coating is 0.25.

  11. Political institutions as substitute for democracy: a political economy analysis of economic growth

    OpenAIRE

    Pereira, Carlos; Teles, Vladimir Kühl

    2009-01-01

    This manuscript empirically assesses the effects of political institutions on economic growth. It analyzes how political institutions affect economic growth in different stages of democratization and economic development by means of dynamic panel estimation with interaction terms. The new empirical results obtained show that political institutions work as a substitute for democracy promoting economic growth. In other words, political institutions are important for increasing economic growth, ...

  12. An Iterative Algorithm to Determine the Dynamic User Equilibrium in a Traffic Simulation Model

    Science.gov (United States)

    Gawron, C.

    An iterative algorithm to determine the dynamic user equilibrium with respect to link costs defined by a traffic simulation model is presented. Each driver's route choice is modeled by a discrete probability distribution which is used to select a route in the simulation. After each simulation run, the probability distribution is adapted to minimize the travel costs. Although the algorithm does not depend on the simulation model, a queuing model is used for performance reasons. The stability of the algorithm is analyzed for a simple example network. As an application example, a dynamic version of Braess's paradox is studied.

  13. Determination of dynamic fracture initiation toughness of elastic-plastic materials at intermediate strain rates

    International Nuclear Information System (INIS)

    Fernandez-Saez, J.; Luna de, S.; Rubio, L.; Perez-Castellanos, J. L.; Navarro, C.

    2001-01-01

    An earlier paper dealt with the experimental techniques used to determine the dynamic fracture properties of linear elastic materials. Here we describe those most commonly used as elastoplastic materials, limiting the study to the initiation fracture toughness at the intermediate strain rate (of around 10''2 s''-1). In this case the inertial forces are negligible and it is possible to apply the static solutions. With this stipulation, the analysis can be based on the methods of testing in static conditions. The dynamic case differs basically, from the static one, in the influence of the strain rate on the properties of the material. (Author) 57 refs

  14. Political Warfare and Contentious Politics

    Science.gov (United States)

    2015-06-01

    the DC and PSLI Overt, Indirect • US forming a coalition with France and Britain to return Trieste to Italy control • US Urged French and British...efforts to alter Chile’s social construct by calling for the end to the Allende government, pointing out the failures of Marxism , encouraging a...political or social change. Frances Piven and Richard Cloward describe three attributes associated with group consciousness and cognitive

  15. Restoring Politics to Political History

    OpenAIRE

    Kousser, J. Morgan

    1982-01-01

    If history ever was simply the study of past politics, it is no longer. Dissatisfied with narratives of Great Men, more interested in analyzing the impact of larger forces and in tracing out patterns of the lives of the masses of people, skeptical that a recounting of election campaigns and a counting of votes reveals much about social thought or action, strongly affected by currents of opinion which have long run deep in France, American historians have turned increas...

  16. A methodology for determining the dynamic exchange of resources in nuclear fuel cycle simulation

    Energy Technology Data Exchange (ETDEWEB)

    Gidden, Matthew J., E-mail: gidden@iiasa.ac.at [International Institute for Applied Systems Analysis, Schlossplatz 1, A-2361 Laxenburg (Austria); University of Wisconsin – Madison, Department of Nuclear Engineering and Engineering Physics, Madison, WI 53706 (United States); Wilson, Paul P.H. [University of Wisconsin – Madison, Department of Nuclear Engineering and Engineering Physics, Madison, WI 53706 (United States)

    2016-12-15

    Highlights: • A novel fuel cycle simulation entity interaction mechanism is proposed. • A framework and implementation of the mechanism is described. • New facility outage and regional interaction scenario studies are described and analyzed. - Abstract: Simulation of the nuclear fuel cycle can be performed using a wide range of techniques and methodologies. Past efforts have focused on specific fuel cycles or reactor technologies. The CYCLUS fuel cycle simulator seeks to separate the design of the simulation from the fuel cycle or technologies of interest. In order to support this separation, a robust supply–demand communication and solution framework is required. Accordingly an agent-based supply-chain framework, the Dynamic Resource Exchange (DRE), has been designed implemented in CYCLUS. It supports the communication of complex resources, namely isotopic compositions of nuclear fuel, between fuel cycle facilities and their managers (e.g., institutions and regions). Instances of supply and demand are defined as an optimization problem and solved for each timestep. Importantly, the DRE allows each agent in the simulation to independently indicate preference for specific trading options in order to meet both physics requirements and satisfy constraints imposed by potential socio-political models. To display the variety of possible simulations that the DRE enables, example scenarios are formulated and described. Important features include key fuel-cycle facility outages, introduction of external recycled fuel sources (similar to the current mixed oxide (MOX) fuel fabrication facility in the United States), and nontrivial interactions between fuel cycles existing in different regions.

  17. A methodology for determining the dynamic exchange of resources in nuclear fuel cycle simulation

    International Nuclear Information System (INIS)

    Gidden, Matthew J.; Wilson, Paul P.H.

    2016-01-01

    Highlights: • A novel fuel cycle simulation entity interaction mechanism is proposed. • A framework and implementation of the mechanism is described. • New facility outage and regional interaction scenario studies are described and analyzed. - Abstract: Simulation of the nuclear fuel cycle can be performed using a wide range of techniques and methodologies. Past efforts have focused on specific fuel cycles or reactor technologies. The CYCLUS fuel cycle simulator seeks to separate the design of the simulation from the fuel cycle or technologies of interest. In order to support this separation, a robust supply–demand communication and solution framework is required. Accordingly an agent-based supply-chain framework, the Dynamic Resource Exchange (DRE), has been designed implemented in CYCLUS. It supports the communication of complex resources, namely isotopic compositions of nuclear fuel, between fuel cycle facilities and their managers (e.g., institutions and regions). Instances of supply and demand are defined as an optimization problem and solved for each timestep. Importantly, the DRE allows each agent in the simulation to independently indicate preference for specific trading options in order to meet both physics requirements and satisfy constraints imposed by potential socio-political models. To display the variety of possible simulations that the DRE enables, example scenarios are formulated and described. Important features include key fuel-cycle facility outages, introduction of external recycled fuel sources (similar to the current mixed oxide (MOX) fuel fabrication facility in the United States), and nontrivial interactions between fuel cycles existing in different regions.

  18. Dynamic capabilities for cooperation in Brazilian multinational and factors determining its management

    Directory of Open Access Journals (Sweden)

    Priscila Rezende da Costa

    2015-05-01

    Full Text Available In the context of emerging companies’ growth, current challenges depend on the local generation of product and process innovations, as well as dynamic capability to generate innovative solutions cooperatively and new globe business models. The objective of this study is to analyse the determining managerial factors for the dynamic capability of cooperation in Brazilian multinationals (BMNs. A survey was conducted with a sample of 60 BMNs, and a structured questionnaire and statistical tests with factorial analysis and Cronbach's alpha were used. The aggregate analysis of the results indicates that BMNs are going through a transitional process between the operational capability of cooperation and the capability for dynamic cooperation, which are relevant to the continuous adaptation of already-established cooperative management routines and the evaluation and incorporation of the relational capability of management practices that consider systemic flows, open innovation and integrate strategic intentionality into cooperative processes.

  19. Political actors playing games: Theory and experiments

    NARCIS (Netherlands)

    Kamm, A.

    2015-01-01

    Political actors exert enormous influence over our daily lives. Their influence on economic activities cannot be underestimated. Voters determine the distribution of political power, political candidates choose policy platforms that they intend to enact if elected, and legislators bargain to arrive

  20. The dynamics of political communication

    International Nuclear Information System (INIS)

    Doucet, G.W.

    1995-01-01

    The art of communication between the energy industry and the public was described in the the context of changing views towards environmental degradation and customer/government scrutiny of industry performance. The massive and rapid transformation of communication through computers and communications technology in the world in general, and the gas industry's adaptation to were also examined. Specific examples of initiatives and activities undertaken by the gas distribution industry were cited. The importance of honest, and courteous communication was stressed

  1. Destructiveness in Political Discourse

    Directory of Open Access Journals (Sweden)

    Яна Александровна Волкова

    2016-12-01

    Full Text Available Destructiveness is among the fundamental discourse categories that play a significant role in the organization of communicative interaction and define the pragmatics of discourse; its study helps to understand some mechanisms and principles of communication, identify strategies and tactics used by a destructive communicative personality. The relevance of this study is determined by the increasing aggressiveness in various types of discourse, and, accordingly, by the need to extend the knowledge of destructive behavior of a communicative personality. The study is based on the theory of discourse-analysis and theory of destructiveness (Z. Harris, T. van Dijk, A. Buss, E. Fromm, D. Ponton, K. Hacker, R. Wodak. N. Arutyunova, V. Karasik, M. Makarov, E. Sheigal et al. Developing the theory of destructiveness and relying on Erich Fromm’s research (1973, we specify the concept of “destructiveness” in relation to the political discourse and compare it with the related concept of aggressiveness. The paper analyses the category of destructiveness in modern US political discourse, using excerpts from the speeches of the candidates for presidency of 2016. Particular attention is paid to the dominant destructive intention - to harm the reputation of the opponent and reduce his political chances, as well as to the functions of verbal aggression: on the one hand - to discredit the opponent, bring accusations, on the other hand - to poison the audience mind against him/her and arouse the feeling of danger posed by a political opponent. The analysis of verbal and nonverbal means of destructiveness in the US political discourse is carried out. The article concludes that abusive remarks of politicians do not result from spontaneous emotional outburst, but from an elaborated destructive strategy where the agonistic nature of political discourse stipulates the use of instrumental aggression (Buss, 1971 for the sake of the conquest of power, lowering the

  2. Determination of dynamic performance of freight cars taking into account technical condition of side bearers

    Directory of Open Access Journals (Sweden)

    S.Myamlin

    2013-02-01

    Full Text Available Purpose. The railway transport plays an important role in social and economic life of the country and carries out the large containment of transportation activities. The transport industry should migrate towards innovation changes and increase its significance as an important transit subsystem on the way of renovation of both the infrastructure and the strategy of all transportation process components including the interaction with other transport modes. At present the life sets strategic challenges for the railway branch, and the basic goals among them are as follows: high-speed train traffic development, increase of the weight of freight trains, new rolling stock development etc. Due to the urgency of this subject, the researchers should cope with the task devoted to one of aspects of improving the freight transportation efficiency, namely to the study of effects of various factors and characteristics of technical conditions of the freight cars running gears (which are unavoidable to arise during operation on their basic dynamic indices. The deviations of technical conditions of running gears from the normal state of the wedge system of bogie swing suspension also play an important role among them. The purpose of the paper is to investigate the influence of different factors of the technical conditions of freight car running gears (size deviation in both the bearers and the wedge system during operation on their basic indices – coefficients of horizontal and vertical dynamics, vehicle body acceleration, frame strength, and derailment stability coefficient. Methodology. The study was conducted by numerical integration and mathematical modeling of the freight car dynamic loading using the software package “Dynamics of Rail Vehicles” (“DYNRAIL”. Findings. As a result of the research for freight car dynamic coefficients determination taking into account technical conditions of the side bearers, the dependencies of the basic freight cars

  3. Complexity, fractal dynamics and determinism in treadmill ambulation: Implications for clinical biomechanists.

    Science.gov (United States)

    Hollman, John H; Watkins, Molly K; Imhoff, Angela C; Braun, Carly E; Akervik, Kristen A; Ness, Debra K

    2016-08-01

    Reduced inter-stride complexity during ambulation may represent a pathologic state. Evidence is emerging that treadmill training for rehabilitative purposes may constrain the locomotor system and alter gait dynamics in a way that mimics pathological states. The purpose of this study was to examine the dynamical system components of gait complexity, fractal dynamics and determinism during treadmill ambulation. Twenty healthy participants aged 23.8 (1.2) years walked at preferred walking speeds for 6min on a motorized treadmill and overground while wearing APDM 6 Opal inertial monitors. Stride times, stride lengths and peak sagittal plane trunk velocities were measured. Mean values and estimates of complexity, fractal dynamics and determinism were calculated for each parameter. Data were compared between overground and treadmill walking conditions. Mean values for each gait parameter were statistically equivalent between overground and treadmill ambulation (P>0.05). Through nonlinear analyses, however, we found that complexity in stride time signals (P<0.001), and long-range correlations in stride time and stride length signals (P=0.005 and P=0.024, respectively), were reduced on the treadmill. Treadmill ambulation induces more predictable inter-stride time dynamics and constrains fluctuations in stride times and stride lengths, which may alter feedback from destabilizing perturbations normally experienced by the locomotor control system during overground ambulation. Treadmill ambulation, therefore, may provide less opportunity for experiencing the adaptability necessary to successfully ambulate overground. Investigators and clinicians should be aware that treadmill ambulation will alter dynamic gait characteristics. Copyright © 2016 Elsevier Ltd. All rights reserved.

  4. Political Culture and Covalent Bonding. A Conceptual Model of Political Culture Change

    OpenAIRE

    Camelia Florela Voinea

    2015-01-01

    Our class of models aims at explaining the dynamics of political attitude change by means of the dynamic changes in values, beliefs, norms and knowledge with which it is associated. The model constructs a political culture perspective over the relationship between macro and micro levels of a society and polity. The model defines the bonding mechanism as a basic mechanism of the political culture change by taking inspiration from the valence bonding theory in Chemistry, which has inspired the ...

  5. Climate effects and feedback structure determining weed population dynamics in a long-term experiment.

    Science.gov (United States)

    Lima, Mauricio; Navarrete, Luis; González-Andujar, José Luis

    2012-01-01

    Pest control is one of the areas in which population dynamic theory has been successfully applied to solve practical problems. However, the links between population dynamic theory and model construction have been less emphasized in the management and control of weed populations. Most management models of weed population dynamics have emphasized the role of the endogenous process, but the role of exogenous variables such as climate have been ignored in the study of weed populations and their management. Here, we use long-term data (22 years) on two annual weed species from a locality in Central Spain to determine the importance of endogenous and exogenous processes (local and large-scale climate factors). Our modeling study determined two different feedback structures and climate effects in the two weed species analyzed. While Descurainia sophia exhibited a second-order feedback and low climate influence, Veronica hederifolia was characterized by a first-order feedback structure and important effects from temperature and rainfall. Our results strongly suggest the importance of theoretical population dynamics in understanding plant population systems. Moreover, the use of this approach, discerning between the effect of exogenous and endogenous factors, can be fundamental to applying weed management practices in agricultural systems and to controlling invasive weedy species. This is a radical change from most approaches currently used to guide weed and invasive weedy species managements.

  6. Climate Effects and Feedback Structure Determining Weed Population Dynamics in a Long-Term Experiment

    Science.gov (United States)

    Lima, Mauricio; Navarrete, Luis; González-Andujar, José Luis

    2012-01-01

    Pest control is one of the areas in which population dynamic theory has been successfully applied to solve practical problems. However, the links between population dynamic theory and model construction have been less emphasized in the management and control of weed populations. Most management models of weed population dynamics have emphasized the role of the endogenous process, but the role of exogenous variables such as climate have been ignored in the study of weed populations and their management. Here, we use long-term data (22 years) on two annual weed species from a locality in Central Spain to determine the importance of endogenous and exogenous processes (local and large-scale climate factors). Our modeling study determined two different feedback structures and climate effects in the two weed species analyzed. While Descurainia sophia exhibited a second-order feedback and low climate influence, Veronica hederifolia was characterized by a first-order feedback structure and important effects from temperature and rainfall. Our results strongly suggest the importance of theoretical population dynamics in understanding plant population systems. Moreover, the use of this approach, discerning between the effect of exogenous and endogenous factors, can be fundamental to applying weed management practices in agricultural systems and to controlling invasive weedy species. This is a radical change from most approaches currently used to guide weed and invasive weedy species managements. PMID:22272362

  7. Climate effects and feedback structure determining weed population dynamics in a long-term experiment.

    Directory of Open Access Journals (Sweden)

    Mauricio Lima

    Full Text Available Pest control is one of the areas in which population dynamic theory has been successfully applied to solve practical problems. However, the links between population dynamic theory and model construction have been less emphasized in the management and control of weed populations. Most management models of weed population dynamics have emphasized the role of the endogenous process, but the role of exogenous variables such as climate have been ignored in the study of weed populations and their management. Here, we use long-term data (22 years on two annual weed species from a locality in Central Spain to determine the importance of endogenous and exogenous processes (local and large-scale climate factors. Our modeling study determined two different feedback structures and climate effects in the two weed species analyzed. While Descurainia sophia exhibited a second-order feedback and low climate influence, Veronica hederifolia was characterized by a first-order feedback structure and important effects from temperature and rainfall. Our results strongly suggest the importance of theoretical population dynamics in understanding plant population systems. Moreover, the use of this approach, discerning between the effect of exogenous and endogenous factors, can be fundamental to applying weed management practices in agricultural systems and to controlling invasive weedy species. This is a radical change from most approaches currently used to guide weed and invasive weedy species managements.

  8. Political electricity

    International Nuclear Information System (INIS)

    Price, Terence.

    1990-01-01

    This book is a non-technical exploration of the political and policy issues that have influenced the development of nuclear power. Part One describes the successes, failures, horse-trading, and infighting that make up nuclear power's history, taking nine counties as examples. Part Two reviews the main problems that now confront us, as seen in mid-June 1990; like all contemporary accounts, the book is unavoidably incomplete. However, by then it was possible to make provisional judgements about two very important recent influences: the political consequences of Chernobyl, and concerns about the greenhouse effect. The story that emerges is of a nuclear industry that has rarely been guilty of dereliction of duty, though it was undeniably complacent in not addressing sooner the causes of the public's entirely reasonable anxieties. The anti-nuclear lobby has been skilled in debate, and sometimes extraordinarily percipient; but less than fair in failing to acknowledge the industry's achievements and its willingness to learn from past mistakes. As for the politicians, the book contains many examples that show how the flames of controversy can be deliberately fanned when there are votes to be gained. The story has few heroes, but within the industry fewer villains than the public has been led to believe. (author)

  9. Street Politics

    Directory of Open Access Journals (Sweden)

    Michael J. Shapiro

    2012-03-01

    Full Text Available I write from Prague, where, unlike in most urban formations, the main city street plays an iconic role; it references a history of political protest. However, before elaborating on the protest iconography of the Prague street, Vaclavske nam, I want to locate the ways in which the design of urban space is actualized in everyday life in the cities of the world. Three functions stand out; the first involves dwelling, the second seeing, and the third moving. With respect to the first function – dwelling – the design partitions and coordinates residential, commercial and leisure functions. At times these are organized to segregate different classes (Robert Moses’ redesign of much of New York stands out with respect to the segregation function. With respect to the second function – seeing – the design of urban space is allegiance-inspiring; it involves sight lines that afford urban dwellers and visitors views of iconic buildings and statues, which reference key founding moments in the past and/or authoritative political functions in the present (Here, L’Enfants design for Washington DC stands out as exemplary. Its manifest intention was to make the buildings housing executive, legislative and judicial functions visible from many vantage points. Rarely are the streets themselves iconic. Their dominant role is involved with the effectuation of movement. As for this third function: As Lewis Mumford famously points out, streets were once part of an asterisk design, radiating out from an exemplary, often spiritual center...

  10. MAPPING CHILDREN'S POLITICS: SPATIAL STORIES, DIALOGIC RELATIONS AND POLITICAL FORMATION.

    Science.gov (United States)

    Elwood, Sarah; Mitchell, Katharyne

    2012-03-01

    This article confronts a persistent challenge in research on children's geographies and politics: the difficulty of recognizing forms of political agency and practice that by definition fall outside of existing political theory. Children are effectively "always already" positioned outside most of the structures and ideals of modernist democratic theory, such as the public sphere and abstracted notions of communicative action or "rational" speech. Recent emphases on embodied tactics of everyday life have offered important ways to recognize children's political agency and practice. However, we argue here that a focus on spatial practices and critical knowledge alone cannot capture the full range of children's politics, and show how representational and dialogic practices remain a critical element of their politics in everyday life. Drawing on de Certeau's notion of spatial stories, and Bakhtin's concept of dialogic relations, we argue that children's representations and dialogues comprise a significant space of their political agency and formation, in which they can make and negotiate social meanings, subjectivities, and relationships. We develop these arguments with evidence from an after-school activity programme we conducted with 10-13 year olds in Seattle, Washington, in which participants explored, mapped, wrote and spoke about the spaces and experiences of their everyday lives. Within these practices, children negotiate autonomy and self-determination, and forward ideas, representations, and expressions of agreement or disagreement that are critical to their formation as political actors.

  11. System for Determining Dynamic Under Keel Clearance of Vessels Entering the Port of Swinoujscie (DRWPS

    Directory of Open Access Journals (Sweden)

    Lucjan Gucma

    2017-09-01

    Full Text Available The article presents a system for determining dynamic under keel clearance. In order to build a DRWPS system, a mixed model was created based on the analysis of math models. The system includes advisory software for defining the conditions for the entering of large LNG vessels in the context of under keel clearance and software was built to support the decision-making of operators who are responsible for introducing these vessels to the Port of Swinoujscie.

  12. Domestic Politics and Nuclear Proliferation

    International Nuclear Information System (INIS)

    Kim, Chul Min; Yim, Man Sung

    2016-01-01

    The external security threat is known as the most important factor of nuclear weapons program, the domestic politics situation can also affect the nuclear proliferation decision of a country. For example, when a leader wants nuclear weapons as an ultimate weapon, the domestic politics situation can determine the effectiveness of the weapons program of a country. This study analyzes the current knowledge of the relationship between domestic politics and nuclear proliferation and suggests the main challenges of the quantitative models trying to calculate nuclear proliferation risk of countries. The domestic politics status is one of the most important indicators of nuclear program. However, some variables have never been used in quantitative analyses; for example, number of veto players and the public opinion on nuclear weapons; despite they are considered to be important in various qualitative studies. Future studies should focus on how should they be coded and how can they be linked with existing domestic politics variables

  13. Domestic Politics and Nuclear Proliferation

    Energy Technology Data Exchange (ETDEWEB)

    Kim, Chul Min; Yim, Man Sung [KAIST, Daejeon (Korea, Republic of)

    2016-05-15

    The external security threat is known as the most important factor of nuclear weapons program, the domestic politics situation can also affect the nuclear proliferation decision of a country. For example, when a leader wants nuclear weapons as an ultimate weapon, the domestic politics situation can determine the effectiveness of the weapons program of a country. This study analyzes the current knowledge of the relationship between domestic politics and nuclear proliferation and suggests the main challenges of the quantitative models trying to calculate nuclear proliferation risk of countries. The domestic politics status is one of the most important indicators of nuclear program. However, some variables have never been used in quantitative analyses; for example, number of veto players and the public opinion on nuclear weapons; despite they are considered to be important in various qualitative studies. Future studies should focus on how should they be coded and how can they be linked with existing domestic politics variables.

  14. Determination of dynamic characteristics of multi-layer carbon plastic structures of high-resolution scanner

    Directory of Open Access Journals (Sweden)

    В. Н. Маслей

    2017-10-01

    Full Text Available The comparative analysis results for the numerical determination of the dynamic characteristics of multi-layer carbon-fiber plates of the space vehicle scanner design by various types of finite element approximation of the physico-mechanical properties of the composite material are presented. Using the topological structure of the construction of reinforcing layers material in the plate package plane, experimental data for the elastic and mass characteristics of homogeneous carbon-fiber fibers, equivalent structural and orthotropic stiffness and elastic characteristics of the material of composite plates are determined.

  15. URBAN POLITICS: KEY APPROACHES

    Directory of Open Access Journals (Sweden)

    Ledyaeva Ol'ga Mikhaylovna

    2012-10-01

    Full Text Available Several approaches that underlie urban politics are discussed in the paper. They include neo-liberalism, political economy discourse, elitist/pluralist debates, and postmodernism. The neoliberal approach focuses on the limited role of the state and individual responsibility. The legal framework protects both the rights and responsibilities of individuals and regulates the operation of the market. It is the market that fosters individual choices and provides goods and services by virtue of the processes which are flexible, efficient and transparent. The political economy approaches (regulation theory, public choice theory, neo-Marxism explain urban politics via the analysis of national and international economic processes and changes in contemporary capitalism. Changes in national and international economies determine what solutions are possible. The discourse has been influenced by the debate on globalization of capital and labour markets. Modern elitism and neopluralism are represented by theories of "growth machines" and "urban regimes". The former focuses on bargaining alliances between political and business leaders in order to manage the urban system and to promote its growth. The latter develops neopluralist explanations of power within local communities with an emphasis on the fragmented nature of the government where local authorities lack comprehensive governing powers. Postmodernism views the city as the site of the crisis of late capitalism which leads to segregation of neighbourhoods onto prosperous areas and ghettoes. In contrast to the modern city, the postmodern city is not defined by its industrial base; rather, it is determined by its consumerist environment of malls and museums, characterized by revivalist architecture. At the same time, the suburban shopping mall and a motorway network make nonsense of the idea of the city as a unique and well-defined space. These and other approaches encompass a wide spectrum of possibilities

  16. Using weigh-in-motion data to determine bridge dynamic amplification factor

    Directory of Open Access Journals (Sweden)

    Kalin Jan

    2015-01-01

    Full Text Available The dynamic component of bridge traffic loading is commonly taken into account with a Dynamic Amplification Factor (DAF – the ratio between the maximum dynamic and static load effects on a bridge. In the design codes, this factor is generally higher than in reality. While this is fine for new bridges that must account for various risks during their life-time, it imposes unnecessary conservativism into assessment of the existing well defined bridges. Therefore, analysis of existing bridges should apply more realistic DAF values. One way of obtaining them experimentally is by bridge weigh-in-motion (B-WIM measurements, which use an existing instrumented bridge or culvert to weigh all crossing vehicles at highway speeds. The B-WIM system had been equipped with two methods of obtaining an approximation to the static response of the. The first method uses the sum of influence lines. This method relies on accurate axle identification, the failure of which can have a large influence on the DAF value. The other method uses a pre-determined low-pass filter to remove the dynamic component of the measured signal; however an expert is needed to set the filter parameters. A new approach that tries to eliminate these two drawbacks has been developed. In this approach the parameters for the filter are determined automatically by fitting the filtered response to the sum of the influence lines. The measurement of DAF on a typical bridge site agrees with experiments performed in the ARCHES [1] project: dynamic amplification decreases as static loading increases.

  17. Political knowledge and awareness in adolescents.

    Science.gov (United States)

    Furnham, A; Gunter, B

    1983-12-01

    Although some work has been done on adolescents' political attitudes, very little work has been done on their political knowledge. This study aimed to replicate a large study carried out eight years ago (Stradling, 1977) to see whether recent political changes altered adolescents' political knowledge and secondly to investigate the determinants (demographic, media usage, interest) of this knowledge. The results were strikingly similar to those of Stradling despite the smaller sample and the changes over time. The subjects appeared to know most about responsibility for public services and party political leaders and least about party political or parliamentary procedure. The canonical variable that best predicted overall knowledge was interest in politics and current affairs and to a lesser extent TV news watching and discussions with adults. The results are discussed in terms of political socialization and limitations of this work are considered.

  18. Flight dynamics facility operational orbit determination support for the ocean topography experiment

    Science.gov (United States)

    Bolvin, D. T.; Schanzle, A. F.; Samii, M. V.; Doll, C. E.

    1991-01-01

    The Ocean Topography Experiment (TOPEX/POSEIDON) mission is designed to determine the topography of the Earth's sea surface across a 3 yr period, beginning with launch in June 1992. The Goddard Space Flight Center Dynamics Facility has the capability to operationally receive and process Tracking and Data Relay Satellite System (TDRSS) tracking data. Because these data will be used to support orbit determination (OD) aspects of the TOPEX mission, the Dynamics Facility was designated to perform TOPEX operational OD. The scientific data require stringent OD accuracy in navigating the TOPEX spacecraft. The OD accuracy requirements fall into two categories: (1) on orbit free flight; and (2) maneuver. The maneuver OD accuracy requirements are of two types; premaneuver planning and postmaneuver evaluation. Analysis using the Orbit Determination Error Analysis System (ODEAS) covariance software has shown that, during the first postlaunch mission phase of the TOPEX mission, some postmaneuver evaluation OD accuracy requirements cannot be met. ODEAS results also show that the most difficult requirements to meet are those that determine the change in the components of velocity for postmaneuver evaluation.

  19. Tracheomalacia in adults with cystic fibrosis: determination of prevalence and severity with dynamic cine CT.

    LENUS (Irish Health Repository)

    McDermott, Shaunagh

    2012-02-01

    PURPOSE: To determine the prevalence and severity of tracheomalacia in adults with cystic fibrosis (CF) by using dynamic cine multidetector computed tomography (CT) and to correlate these findings with pulmonary function test (PFT) results and the severity of parenchymal lung disease. MATERIALS AND METHODS: In this institutional review board-approved HIPAA-compliant study, 40 patients with CF (22 men, 18 women; mean age, 28 years +\\/- 8 [standard deviation]; age range, 18-54 years) prospectively underwent PFTs, standard thin-section CT, and two dynamic cine multidetector CT acquisitions. Ten control subjects underwent dynamic cine multidetector CT. After standard thin-section CT was completed, dynamic cine multidetector CT was performed during a forced expiratory maneuver and during coughing. Dynamic cine multidetector CT images in nine patients were excluded. Maximal inspiratory, dynamic expiratory, and end-expiratory tracheal luminal areas were compared (Student t test) and correlated (Spearman rank) with PFT results and severity of parenchymal lung disease. RESULTS: Mean predicted forced expiratory volume in 1 second (FEV(1)) was 70.6% +\\/- 20.7, and mean Bhalla CT score was 41.8% +\\/- 13.6. In patients with CF, dynamic cine mean tracheal cross-sectional area reduction was 51.7% +\\/- 18.4 (range, 9%-89%) for forced expiratory maneuvers and 68.8% +\\/- 11.7 (range, 18%-88%) for coughing (P = .001). Tracheomalacia was demonstrated in 24 (69%) patients and no control subjects during forced expiratory maneuvers (P = .001) and in 10 (29%) patients and one (10%) control subject during coughing. For end-expiration images, mean tracheal luminal reduction was 16.1% +\\/- 14.0% (range, 0.0%-53.0%), with one patient demonstrating tracheal luminal reduction of more than 50%. There was no correlation between tracheal cross-sectional luminal reduction and either predicted FEV(1) or CT Bhalla score. CONCLUSION: Tracheomalacia depicted at dynamic cine multidetector CT is a

  20. Experimental determination of the dynamic shape factor of primary sodium peroxide aerosols

    International Nuclear Information System (INIS)

    Barbe, M.

    1985-09-01

    A hypothetical accident in a fast breeeder reactor could cause aerosols to be generated in a sodium fire. The computer codes relative to the modeling of such accidents make it necessary to use various input parameters among which the dynamic shape factor kappa of the aerosols produced. This study concerns the shape factor of sodium peroxide; the discrepancies between the values of this parameter given in the literature justifies the usefulness of our work. We have tried to use the simplest method. The dynamic shape factor is proportional to the ratio of the equivalent volume diameter to the aerodynamic diameter for a given particle. Therefore, these two quantities must be determined. The particles are classified by means of a centrifuge as a function of their aerodynamic diameter; the equivalent volume diameter of the particles thus selected can then be determined by assessing the mass (neutron activation) and the number (electron microscope) on the same sample of particles. Our results show that the dynamic shape factor of sodium peroxide submicronic particles generated by a fire is nearly 1 and the values of this parameter increase with the particles size [fr

  1. The Commodification of African Politics

    DEFF Research Database (Denmark)

    Hagmann, Tobias

    2017-01-01

    , practices and dynamics that dominate political life. Individual chapters are devoted to Darfur, Sudan, South Sudan, Somalia, Somaliland, Eritrea, and Ethiopia, leaving only Djibouti out from the region. De Waal writes eloquently and with great wit, offering the reader many insights. Thirdly, The Real...

  2. GPS Based Reduced-Dynamic Orbit Determination for Low Earth Orbiters with Ambiguity Fixing

    Directory of Open Access Journals (Sweden)

    Yang Yang

    2015-01-01

    Full Text Available With the ever-increasing number of satellites in Low Earth Orbit (LEO for scientific missions, the precise determination of the position and velocity of the satellite is a necessity. GPS (Global Positioning System based reduced-dynamic orbit determination (RPOD method is commonly used in the post processing with high precision. This paper presents a sequential RPOD strategy for LEO satellite in the framework of Extended Kalman Filter (EKF. Precise Point Positioning (PPP technique is used to process the GPS observations, with carrier phase ambiguity resolution using Integer Phase Clocks (IPCs products. A set of GRACE (Gravity Recovery And Climate Experiment mission data is used to test and validate the RPOD performance. Results indicate that orbit determination accuracy could be improved by 15% in terms of 3D RMS error in comparison with traditional RPOD method with float ambiguity solutions.

  3. Effective research and innovation (R&I) policy in the EU-28: A causal and configurational analysis of political governance determinants

    NARCIS (Netherlands)

    Turkeli, S.; Kemp, R.P.M.

    2015-01-01

    Effective research and innovation (R&I) policy depends on the extent to which ideas, interests and institutional mechanisms for policy making work together rather than work against each other. In a political governance model for effective R&I policy in the EU-28, the separate influence of

  4. Aggregate size and structure determination of nanomaterials in physiological media: importance of dynamic evolution

    Science.gov (United States)

    Afrooz, A. R. M. Nabiul; Hussain, Saber M.; Saleh, Navid B.

    2014-12-01

    Most in vitro nanotoxicological assays are performed after 24 h exposure. However, in determining size and shape effect of nanoparticles in toxicity assays, initial characterization data are generally used to describe experimental outcome. The dynamic size and structure of aggregates are typically ignored in these studies. This brief communication reports dynamic evolution of aggregation characteristics of gold nanoparticles. The study finds that gradual increase in aggregate size of gold nanospheres (AuNS) occurs up to 6 h duration; beyond this time period, the aggregation process deviates from gradual to a more abrupt behavior as large networks are formed. Results of the study also show that aggregated clusters possess unique structural conformation depending on nominal diameter of the nanoparticles. The differences in fractal dimensions of the AuNS samples likely occurred due to geometric differences, causing larger packing propensities for smaller sized particles. Both such observations can have profound influence on dosimetry for in vitro nanotoxicity analyses.

  5. Relating Topological Determinants of Complex Networks to Their Spectral Properties: Structural and Dynamical Effects

    Science.gov (United States)

    Castellano, Claudio; Pastor-Satorras, Romualdo

    2017-10-01

    The largest eigenvalue of a network's adjacency matrix and its associated principal eigenvector are key elements for determining the topological structure and the properties of dynamical processes mediated by it. We present a physically grounded expression relating the value of the largest eigenvalue of a given network to the largest eigenvalue of two network subgraphs, considered as isolated: the hub with its immediate neighbors and the densely connected set of nodes with maximum K -core index. We validate this formula by showing that it predicts, with good accuracy, the largest eigenvalue of a large set of synthetic and real-world topologies. We also present evidence of the consequences of these findings for broad classes of dynamics taking place on the networks. As a by-product, we reveal that the spectral properties of heterogeneous networks built according to the linear preferential attachment model are qualitatively different from those of their static counterparts.

  6. Determination of Quantum Chemistry Based Force Fields for Molecular Dynamics Simulations of Aromatic Polymers

    Science.gov (United States)

    Jaffe, Richard; Langhoff, Stephen R. (Technical Monitor)

    1995-01-01

    Ab initio quantum chemistry calculations for model molecules can be used to parameterize force fields for molecular dynamics simulations of polymers. Emphasis in our research group is on using quantum chemistry-based force fields for molecular dynamics simulations of organic polymers in the melt and glassy states, but the methodology is applicable to simulations of small molecules, multicomponent systems and solutions. Special attention is paid to deriving reliable descriptions of the non-bonded and electrostatic interactions. Several procedures have been developed for deriving and calibrating these parameters. Our force fields for aromatic polyimide simulations will be described. In this application, the intermolecular interactions are the critical factor in determining many properties of the polymer (including its color).

  7. Structure and dynamics of porcine submaxillary mucin as determined by natural abundance carbon-13 NMR spectroscopy

    International Nuclear Information System (INIS)

    Gerken, T.A.; Jentoft, N.

    1987-01-01

    Nearly all of the resonances in the 13 C NMR spectrum of porcine submaxillary mucin glycoprotein (PSM) have been assigned to the peptide core carbons and to the carbons in the eight different oligosaccharide side chains that arise from the incomplete biosynthesis of the sialylated A blood group pentasaccharide. By use of these assignments, a nearly complete structural analysis of intact PSM has been performed without resorting to degradative chemical methods. Considerable structural variability in the carbohydrate side chains was observed between mucins obtained from different animals, while no variability was observed between glands in a single animal. The dynamics of the PSM core and carbohydrate side chains were examined by using the carbon-13 nuclear magnetic resonance relaxation times and nuclear Overhauser enhancements of each assigned carbon resonance. The peptide core of PSM exhibits internal segmental flexibility that is virtually identical with that of ovine submaxillary mucin (OSM), whose carbohydrate side chain consists of the α-NeuNAc(2-6)α-Ga1NAc disaccharide. These results differ from most reports of glycoprotein dynamics, which typically find the terminal carbohydrate residues to be undergoing rapid internal rotation about their terminal glycosidic bonds. The results reported here are consistent with previous studies on the conformations of the A and H determinants derived from model oligosaccharides and further indicate that the conformations of these determinants are unchanged when covalently bound to the mucin peptide core. In spite of their carbohydrate side-chain heterogeneity, mucins appear to be ideal glycoproteins for the study of O-linked oligosaccharide conformation and dynamics and for the study of the effects of glycosylation on polypeptide conformation and dynamics

  8. Topological and kinetic determinants of the modal matrices of dynamic models of metabolism.

    Directory of Open Access Journals (Sweden)

    Bin Du

    Full Text Available Large-scale kinetic models of metabolism are becoming increasingly comprehensive and accurate. A key challenge is to understand the biochemical basis of the dynamic properties of these models. Linear analysis methods are well-established as useful tools for characterizing the dynamic response of metabolic networks. Central to linear analysis methods are two key matrices: the Jacobian matrix (J and the modal matrix (M-1 arising from its eigendecomposition. The modal matrix M-1 contains dynamically independent motions of the kinetic model near a reference state, and it is sparse in practice for metabolic networks. However, connecting the structure of M-1 to the kinetic properties of the underlying reactions is non-trivial. In this study, we analyze the relationship between J, M-1, and the kinetic properties of the underlying network for kinetic models of metabolism. Specifically, we describe the origin of mode sparsity structure based on features of the network stoichiometric matrix S and the reaction kinetic gradient matrix G. First, we show that due to the scaling of kinetic parameters in real networks, diagonal dominance occurs in a substantial fraction of the rows of J, resulting in simple modal structures with clear biological interpretations. Then, we show that more complicated modes originate from topologically-connected reactions that have similar reaction elasticities in G. These elasticities represent dynamic equilibrium balances within reactions and are key determinants of modal structure. The work presented should prove useful towards obtaining an understanding of the dynamics of kinetic models of metabolism, which are rooted in the network structure and the kinetic properties of reactions.

  9. Political Crowdfunding as concept of political technologies

    Directory of Open Access Journals (Sweden)

    Valeria GOLKA

    2016-09-01

    Full Text Available Political crowdfunding is analyzed as a new concept of political science. The justification of use of crowdfunding technologies not only in business but also in the political sphere is argued. The efficiency, availability, low cost of the new forms of political investment through the development of information and communication technologies are noted. The typology of political crowdfunding is proposed. Political projects promoting domestic crowdfunding platforms are analyzed. Attention is drawn to the problem of legal gaps in the regulation of crowdfunding is studied. The foreign experience of organizing public support (mikroinvestment political projects. It is emphasized that in terms of political theory crowdfunding is based on solidarity. The crowdfunding properties of transforming social capital accumulated by social networks into financial capital are mentioned.

  10. Adaptive SLICE method: an enhanced method to determine nonlinear dynamic respiratory system mechanics

    International Nuclear Information System (INIS)

    Zhao, Zhanqi; Möller, Knut; Guttmann, Josef

    2012-01-01

    The objective of this paper is to introduce and evaluate the adaptive SLICE method (ASM) for continuous determination of intratidal nonlinear dynamic compliance and resistance. The tidal volume is subdivided into a series of volume intervals called slices. For each slice, one compliance and one resistance are calculated by applying a least-squares-fit method. The volume window (width) covered by each slice is determined based on the confidence interval of the parameter estimation. The method was compared to the original SLICE method and evaluated using simulation and animal data. The ASM was also challenged with separate analysis of dynamic compliance during inspiration. If the signal-to-noise ratio (SNR) in the respiratory data decreased from +∞ to 10 dB, the relative errors of compliance increased from 0.1% to 22% for the ASM and from 0.2% to 227% for the SLICE method. Fewer differences were found in resistance. When the SNR was larger than 40 dB, the ASM delivered over 40 parameter estimates (42.2 ± 1.3). When analyzing the compliance during inspiration separately, the estimates calculated with the ASM were more stable. The adaptive determination of slice bounds results in consistent and reliable parameter values. Online analysis of nonlinear respiratory mechanics will profit from such an adaptive selection of interval size. (paper)

  11. Political Awakenings

    Directory of Open Access Journals (Sweden)

    Claudia Franziska Brühwiler

    2008-05-01

    Full Text Available Le Complot contre l’Amérique de Philip Roth décrit l’initiation politique de ses deux protagonistes, le narrateur Philip et son frère aîné, Sanford. Tandis que ce dernier passe par un processus initiatique quasi classique — il se déroule conformément au schéma tripartite de van Gennep — l’apogée de l’initiation de Philip est marquée par douleur et blessure. Toutefois, tous les deux connaissent seulement une initiation partielle, car le premier doit d’abord admettre ses erreurs tandis que le second va devoir apprendre, non seulement à remettre en cause l’autorité, mais également à développer ses idées de façon indépendante.Philip Roth’s The Plot Against America traces the political awakening of its two child protagonists, the narrator Philip and his elder brother Sanford. While the latter undergoes an initiation process nearly in accordance with the classical tripartite scheme as coined by van Gennep, the height of Philip’s initiation process is marked by physical pain and injury. However, both experience only a partial initiation, since the elder brother will have to recognize his errors and the younger one will first have to learn how to go beyond the mere questioning of authority.

  12. Immediate postarousal sleep dynamics: an important determinant of sleep stability in obstructive sleep apnea.

    Science.gov (United States)

    Younes, Magdy; Hanly, Patrick J

    2016-04-01

    Arousability from sleep is increasingly recognized as an important determinant of the clinical spectrum of sleep disordered breathing (SDB). Patients with SDB display a wide range of arousability. The reason for these differences is not known. We hypothesized that differences in the speed with which sleep deepens following arousals/awakenings (postarousal sleep dynamics) is a major determinant of these differences in arousability in patients with SDB. We analyzed 40 preexisting clinical polysomnography records from patients with a range of SDB severity (apnea-hypopnea index 5-135/h). Sleep depth was determined every 3 s using the odds ratio product (ORP) method, a continuous index of sleep depth (0 = deep sleep, 2.5 = full wakefulness) that correlates strongly (r = 0.98) with arousability (Younes M, Ostrowski M, Soiferman M, Younes H, Younes M, Raneri J, and Hanly P. Sleep 38: 641-654, 2015). Time course of ORP was determined from end of arousal until the next arousal. All arousals were analyzed (142 ± 65/polysomnogram). ORP increased from 0.58 ± 0.32 during sleep to 1.67 ± 0.35 during arousals. ORP immediately (first 9 s) following arousals/awakenings (ORP-9) ranged from 0.21(very deep sleep) to 1.71 (highly arousable state) in different patients. In patients with high ORP-9, sleep deepened slowly (over minutes) beyond 9 s but only if no arousals/awakenings recurred. ORP-9 correlated strongly with average non-rapid eye movement sleep depth (r = 0.87, P sleep architecture. We conclude that postarousal sleep dynamics are highly variable among patients with sleep-disordered breathing and largely determine average sleep depth and continuity. Copyright © 2016 the American Physiological Society.

  13. Effects of Political Knowledge on Political Tolerance

    Science.gov (United States)

    Hall, John Powell

    2018-01-01

    Sexual orientation continues to be an explosive issue in American classrooms. Increasing the political knowledge of students can reduce the volatility of this explosive issue by increasing tolerance toward the lesbian, gay, bisexual, and transgender community. This relationship between political knowledge and political tolerance has been…

  14. Faithless: The politics of new atheism

    Directory of Open Access Journals (Sweden)

    Steven Kettell

    2013-11-01

    Full Text Available The emergence of ‘new atheism’ during the course of the last decade helped fuel an upsurge of interest in issues around religion. But scholarly analysis of new atheism, particularly its political dimensions, remains embryonic. This paper addresses this lacuna by examining the politics of new atheism across a variety of themes related to politics. These include the causal factors underpinning its emergence and development, its organisational structure and composition, the political strategies pursued by its proponents, and the various internal tensions and conflicts that these dynamics have produced.

  15. About green political parties

    Directory of Open Access Journals (Sweden)

    Orlović Slobodan P.

    2015-01-01

    Full Text Available In this work the author refers to some legal and political questions in connection with green political parties. Those questions cover: the ideology of green political parties, their number and influence, both in general and in Serbia. The first part of work is generally speaking about political parties - their definition, ideology, role and action. Main thesis in this work is that green political parties, by their appearance, were something new on the political scene. But quickly, because of objective and subjective reasons, they were changing original ideas and were beginning to resemble to all other political parties. In this way, they lost their vanguard and political alternativeness.

  16. The effects of human interest and conflict news frames on the dynamics of political knowledge gains: evidence from a cross-national study

    NARCIS (Netherlands)

    Jebril, N.; de Vreese, C.H.; van Dalen, A.; Albaek, E.

    2013-01-01

    A well-functioning democracy needs the news media to provide information to its citizens. It is therefore essential to understand what kinds of news contents contribute to gains in citizens' political knowledge and for whom this takes place. Extant research is divergent on this matter, especially

  17. Main Effect QTL with Dominance Determines Heterosis for Dynamic Plant Height in Upland Cotton

    Directory of Open Access Journals (Sweden)

    Lianguang Shang

    2016-10-01

    Full Text Available Plant height, which shows dynamic development and heterosis, is a major trait affecting plant architecture and has an indirect influence on economic yield related to biological yield in cotton. In the present study, we carried out dynamic analysis for plant height and its heterosis by quantitative trait loci (QTL mapping at multiple developmental stages using two recombinant inbred lines (RILs and their backcross progeny. At the single-locus level, 47 QTL were identified at five developmental stages in two hybrids. In backcross populations, QTL identified at an early stage mainly showed partial effects and QTL detected at a later stage mostly displayed overdominance effects. At the two-locus level, we found that main effect QTL played a more important role than epistatic QTL in the expression of heterosis in backcross populations. Therefore, this study implies that the genetic basis of plant height heterosis shows dynamic character and main effect QTL with dominance determines heterosis for plant height in Upland cotton.

  18. Determination of Dynamics of Plant Plasma Membrane Proteins with Fluorescence Recovery and Raster Image Correlation Spectroscopy.

    Science.gov (United States)

    Laňková, Martina; Humpolíčková, Jana; Vosolsobě, Stanislav; Cit, Zdeněk; Lacek, Jozef; Čovan, Martin; Čovanová, Milada; Hof, Martin; Petrášek, Jan

    2016-04-01

    A number of fluorescence microscopy techniques are described to study dynamics of fluorescently labeled proteins, lipids, nucleic acids, and whole organelles. However, for studies of plant plasma membrane (PM) proteins, the number of these techniques is still limited because of the high complexity of processes that determine the dynamics of PM proteins and the existence of cell wall. Here, we report on the usage of raster image correlation spectroscopy (RICS) for studies of integral PM proteins in suspension-cultured tobacco cells and show its potential in comparison with the more widely used fluorescence recovery after photobleaching method. For RICS, a set of microscopy images is obtained by single-photon confocal laser scanning microscopy (CLSM). Fluorescence fluctuations are subsequently correlated between individual pixels and the information on protein mobility are extracted using a model that considers processes generating the fluctuations such as diffusion and chemical binding reactions. As we show here using an example of two integral PM transporters of the plant hormone auxin, RICS uncovered their distinct short-distance lateral mobility within the PM that is dependent on cytoskeleton and sterol composition of the PM. RICS, which is routinely accessible on modern CLSM instruments, thus represents a valuable approach for studies of dynamics of PM proteins in plants.

  19. Microbial phylogeny determines transcriptional response of resistome to dynamic composting processes.

    Science.gov (United States)

    Wang, Cheng; Dong, Da; Strong, P J; Zhu, Weijing; Ma, Zhuang; Qin, Yong; Wu, Weixiang

    2017-08-16

    Animal manure is a reservoir of antibiotic resistance genes (ARGs) that pose a potential health risk globally, especially for resistance to the antibiotics commonly used in livestock production (such as tetracycline, sulfonamide, and fluoroquinolone). Currently, the effects of biological treatment (composting) on the transcriptional response of manure ARGs and their microbial hosts are not well characterized. Composting is a dynamic process that consists of four distinct phases that are distinguished by the temperature resulting from microbial activity, namely the mesophilic, thermophilic, cooling, and maturing phases. In this study, changes of resistome expression were determined and related to active microbiome profiles during the dynamic composting process. This was achieved by integrating metagenomic and time series metatranscriptomic data for the evolving microbial community during composting. Composting noticeably reduced the aggregated expression level of the manure resistome, which primarily consisted of genes encoding for tetracycline, vancomycin, fluoroquinolone, beta-lactam, and aminoglycoside resistance, as well as efflux pumps. Furthermore, a varied transcriptional response of resistome to composting at the ARG levels was highlighted. The expression of tetracycline resistance genes (tetM-tetW-tetO-tetS) decreased during composting, where distinctive shifts in the four phases of composting were related to variations in antibiotic concentration. Composting had no effect on the expression of sulfonamide and fluoroquinolone resistance genes, which increased slightly during the thermophilic phase and then decreased to initial levels. As indigenous populations switched greatly throughout the dynamic composting, the core resistome persisted and their reservoir hosts' composition was significantly correlated with dynamic active microbial phylogenetic structure. Hosts for sulfonamide and fuoroquinolone resistance genes changed notably in phylognetic structure

  20. Detailed balance method for chemical potential determination in Monte Carlo and molecular dynamics simulations

    International Nuclear Information System (INIS)

    Fay, P.J.; Ray, J.R.; Wolf, R.J.

    1994-01-01

    We present a new, nondestructive, method for determining chemical potentials in Monte Carlo and molecular dynamics simulations. The method estimates a value for the chemical potential such that one has a balance between fictitious successful creation and destruction trials in which the Monte Carlo method is used to determine success or failure of the creation/destruction attempts; we thus call the method a detailed balance method. The method allows one to obtain estimates of the chemical potential for a given species in any closed ensemble simulation; the closed ensemble is paired with a ''natural'' open ensemble for the purpose of obtaining creation and destruction probabilities. We present results for the Lennard-Jones system and also for an embedded atom model of liquid palladium, and compare to previous results in the literature for these two systems. We are able to obtain an accurate estimate of the chemical potential for the Lennard-Jones system at higher densities than reported in the literature

  1. PREFACE: Structure and dynamics determined by neutron and x-ray scattering Structure and dynamics determined by neutron and x-ray scattering

    Science.gov (United States)

    Müller-Buschbaum, Peter

    2011-06-01

    Neutron and x-ray scattering have emerged as powerful methods for the determination of structure and dynamics. Driven by emerging new, powerful neutron and synchrotron radiation sources, the continuous development of new instrumentation and novel scattering techniques gives rise to exciting possibilities. For example, in situ observations become possible via a high neutron or x-ray flux at the sample and, as a consequence, morphological transitions with small time constants can be detected. This special issue covers a broad range of different materials from soft to hard condensed matter. Hence, different material classes such as colloids, polymers, alloys, oxides and metals are addressed. The issue is dedicated to the 60th birthday of Professor Winfried Petry, scientific director of the Research Neutron Source Heinz Maier-Leibnitz (FRM-II), Germany, advisor at the physics department for the Bayerische Elite-Akademie, chair person of the Arbeitsgemeinschaft Metall- und Materialphysik of the German Physical Society (DPG) and a member of the professional council of the German Science Foundation (Deutsche Forschungsgemeinschaft, DFG). We would like to acknowledge and thank all contributors for their submissions, which made this special issue possible in the first place. Moreover, we would like to thank the staff at IOP Publishing for helping us with the administrative aspects and for coordinating the refereeing process, and Valeria Lauter for the beautiful cover artwork. Finally, to the readers, we hope that you find this special issue a valuable resource that provides insights into the present possibilities of neutron and x-ray scattering as powerful tools for the investigation of structure and dynamics. Structure and dynamics determined by neutron and x-ray scattering contents In situ studies of mass transport in liquid alloys by means of neutron radiography F Kargl, M Engelhardt, F Yang, H Weis, P Schmakat, B Schillinger, A Griesche and A Meyer Magnetic spin

  2. POLITICAL POWER IN THE PRISM OF POLITICAL ANALYSIS (EXPERIENCE REVIEW OF CURRENT RESEARCH DIRECTIONS

    Directory of Open Access Journals (Sweden)

    A. N. Kuryukin

    2010-01-01

    Full Text Available The broad theoretical material considered relevant areas of the study of political power. Reveals the patterns of occurrence and development of a strictly scientific views on political power as a phenomenon and a social process. Determined the current trends of development of theoreticalunderstanding of political power in relation to the stages of its evolution. The most urgent technological model of exercising political power.

  3. Politics Backstage - Television Documentaries, Politics and Politicians

    Directory of Open Access Journals (Sweden)

    Ib Bondebjerg

    2006-09-01

    Full Text Available This article deals with "the transformation of visibility" in political discourse on and representation of politics and politicians in resent Dansih television documentaries. Drawing on the theories of Habermas, Meyrowitz and John B. Thompson, it is argued that the political persona on television is moved closer to the individual citizen, creating a sort "mediated quasi-inter- action" giving mediated communication a stronger element of face-to-face interaction. Together with the more pervasive "live" coverage of politics and politicians, this expands media coverage to both the backstage of political processes and the private and personal backstage of politicians, changing the form of democracy and public debate.

  4. Defining Political Marketing

    DEFF Research Database (Denmark)

    Ormrod, Robert P.

    ’ and ‘narrow’ interpretations of political marketing, the nature of the political marketing exchange, political relationship marketing and how one can integrate the stakeholder concept into an understanding of political marketing. Finally, we propose a definition of political marketing that differs from......The aim of this working paper is to develop a definition of political marketing that builds on the political rather than commercial marketing literature. This aim is motivated by the need to make explicit our understanding of what political marketing is, a necessary exercise when discussing theory......, concepts and empirical methods in political marketing. We first present five existing definitions of political marketing that have been selected to represent advances in research from the origins of academic research into political marketing in the mid-1970’s to the present day. After this we discuss ‘wide...

  5. Determining the number of kanbans for dynamic production systems: An integrated methodology

    Directory of Open Access Journals (Sweden)

    Özlem Uzun Araz

    2016-08-01

    Full Text Available Just-in-time (JIT is a management philosophy that reduces the inventory levels and eliminates manufacturing wastes by producing only the right quantity at the right time. A kanban system is one of the key elements of JIT philosophy. Kanbans are used to authorize production and to control movement of materials in JIT systems. In Kanban systems, the efficiency of the manufacturing system depends on several factors such as number of kanbans, container size etc. Hence, determining the number of kanbans is a critical decision in Kanban systems. The aim of this study is to develop a methodology that can be used in order to determine the number of kanbans in a dynamic production environment. In this methodology, the changes in system state is monitored in real time manner, and the number of the kanbans are dynamically re-arranged. The proposed methodology integrates simulation, neural networks and Mamdani type fuzzy inference system. The methodology is modelled in simulation environment and applied on a hypothetic production system. We also performed several comparisons for different control policies to show the effectiveness of the proposed methodology.

  6. Experimental and numerical determination of the dynamic properties of the reactor building of Atucha II NPP

    International Nuclear Information System (INIS)

    Ceballos, M.A.; Car, E.J.; Prato, T.A.; Prato, C.A.; Alvarez, L.M.; Godoy, A.R.

    1995-01-01

    Determination of the dynamic properties of the reactor building of Atucha II NPP is carried out in order to: i) Obtain valuable information for seismic qualification of the plant, and ii) Assess some procedures for testing and analysis that are used in the process of seismic evaluation of existing nuclear facilities founded on Quaternary soil deposits. Both steady state and impulsive dynamic tests were performed but attention is centered here in tile techniques used to determine natural frequencies and modal damping ratios with impulsive tests. Numerical analyses were performed by means of a 3-D model model of the superstructure together with foundation stiffness coefficients derived in a separate paper from steady state vibration tests, and also from analysis with a 2-D F.E. model of the soil layers capable of approximating the 3-D features of the problem. The computed foundation stiffness coefficients are compared both with those obtained from the tests and from an axisymmetric F.E. model; results indicate that foundation stiffness coefficients calculated with F.E. models with soil parameters given by laboratory tests performed on cored samples are significantly lower than those given by the steady state vibration tests. (author)

  7. The role of self-determined motivation in job search: A dynamic approach.

    Science.gov (United States)

    da Motta Veiga, Serge P; Gabriel, Allison S

    2016-03-01

    Job search is a dynamic self-regulated process during which job seekers need to stay motivated to secure a job. However, past research has taken a relatively static approach to examining motivation during the job search, in addition to ignoring how the quality of one's motivation--ranging from autonomous to controlled--can influence job search processes. Adopting a within-person perspective, the current study extends self-determination theory (SDT) to the job search context to investigate (a) when autonomous and controlled motivations are more or less prevalent and (b) whether they influence job search effort through metacognitive strategies in differing ways depending upon the amount of time elapsed in the search. In a weekly study of new labor market entrants (Level-2 n = 149; Level-1 n = 691), results indicated that autonomous motivation decreased until the midpoint of the job search and then plateaued, whereas controlled motivation remained stable. Results also showed that autonomous motivation had a consistent, positive relation with metacognitive strategies, whereas the relation between controlled motivation and such strategies was negative early in the job search, but became positive as the job search progressed. Finally, the effects of motivation on job search effort occurred via metacognitive strategies differentially depending upon the time elapsed in the search. Combined, we provide a first glimpse into the dynamics of self-determined motivation on job search processes. (c) 2016 APA, all rights reserved).

  8. Inverse Force Determination on a Small Scale Launch Vehicle Model Using a Dynamic Balance

    Science.gov (United States)

    Ngo, Christina L.; Powell, Jessica M.; Ross, James C.

    2017-01-01

    A launch vehicle can experience large unsteady aerodynamic forces in the transonic regime that, while usually only lasting for tens of seconds during launch, could be devastating if structural components and electronic hardware are not designed to account for them. These aerodynamic loads are difficult to experimentally measure and even harder to computationally estimate. The current method for estimating buffet loads is through the use of a few hundred unsteady pressure transducers and wind tunnel test. Even with a large number of point measurements, the computed integrated load is not an accurate enough representation of the total load caused by buffeting. This paper discusses an attempt at using a dynamic balance to experimentally determine buffet loads on a generic scale hammer head launch vehicle model tested at NASA Ames Research Center's 11' x 11' transonic wind tunnel. To use a dynamic balance, the structural characteristics of the model needed to be identified so that the natural modal response could be and removed from the aerodynamic forces. A finite element model was created on a simplified version of the model to evaluate the natural modes of the balance flexures, assist in model design, and to compare to experimental data. Several modal tests were conducted on the model in two different configurations to check for non-linearity, and to estimate the dynamic characteristics of the model. The experimental results were used in an inverse force determination technique with a psuedo inverse frequency response function. Due to the non linearity, the model not being axisymmetric, and inconsistent data between the two shake tests from different mounting configuration, it was difficult to create a frequency response matrix that satisfied all input and output conditions for wind tunnel configuration to accurately predict unsteady aerodynamic loads.

  9. @rchipelago online. The internet and political activism in Indonesia

    NARCIS (Netherlands)

    Lim, M.

    2005-01-01

    This dissertation tries to provide insights into the dynamics of Internet-politics relations by looking at how the Internet was used in transition period - within two different political circumstances: the late period of Suharto and the post-Suharto period - for political activism. Using Indonesia

  10. Sectorial and regional determinants of firm dynamics in developing countries: evidence for low, medium and high tech manufacturing in Argentina

    OpenAIRE

    Calá, Carla Daniela

    2018-01-01

    We analyse the determinants of firm dynamics in developing countries using Argentina as an illustrative case. We explain firm entry and exit at the regional level, distinguishing three groups of manufacturing activities: low, medium and high tech. We find that both region -and sector- specific determinants explain firm dynamics, but the impact is not homogeneous across sectors. In particular, for low tech industries, there is a need for explanatory variables that proxy for the specificities o...

  11. Exploring Political Alternatives

    Science.gov (United States)

    Denhardt, Robert B.

    1975-01-01

    The author distinguishes between the concepts of political socialization and political education. He argues that political socialization has come to dominate both our thinking and our teaching in the area of civic education. Suggestions for promoting political education are included. (DE)

  12. Language and Politics.

    Science.gov (United States)

    Chimombo, Moira

    1999-01-01

    Surveys the interrelationship between language and politics. Touches on the context of political discourse, or political culture and ideology in new and old democracies and the reemerging manifestations of totalitarianism, censorship, and linguistic imperialism; then examines selected linguistic features of political discourse and their…

  13. EFFECTS OF PROACTIVE PERSONALITY ON POLITICAL SKILLS

    Directory of Open Access Journals (Sweden)

    Tahsin AKÇAKANAT

    2017-12-01

    Full Text Available The aim of this study was to determine the effect of the proactive personality on the political skills of the administrative staff working at the university. For this purpose, Proactive Personality Scale (Claes et.al., 2005 and Political Skill Inventory (Ferris et.al.:2005 were conducted for university administrative staff. The relationship between proactive personality traits and political skills of the staff was determined through correlation and regression analysis. As a result, it has been found that proactive personality has a significant effect in explaining both its general political skill and its sub-dimensions.

  14. Political Culture and Covalent Bonding. A Conceptual Model of Political Culture Change

    Directory of Open Access Journals (Sweden)

    Camelia Florela Voinea

    2015-01-01

    Full Text Available Our class of models aims at explaining the dynamics of political attitude change by means of the dynamic changes in values, beliefs, norms and knowledge with which it is associated. The model constructs a political culture perspective over the relationship between macro and micro levels of a society and polity. The model defines the bonding mechanism as a basic mechanism of the political culture change by taking inspiration from the valence bonding theory in Chemistry, which has inspired the elaboration of the mechanisms and processes underlying the political culture emergence and the political culture control over the relationship between macro-level political entities and the micro-level individual agents. The model introduces operational definitions of the individual agent in political culture terms. The simulation model is used for the study of emergent political culture change phenomena based on individual interactions (emergent or upward causation as well as the ways in which the macro entities and emergent phenomena influence in turn the behaviors of individual agents (downward causation. The model is used in the ongoing research concerning the quality of democracy and political participation of the citizens in the Eastern European societies after the Fall of Berlin Wall. It is particularly aimed at explaining the long-term effect of the communist legacy and of the communist polity concept and organization onto the political mentalities and behaviors of the citizens with respect to democratic institutions and political power. The model has major implications in political socialization, political involvement, political behavior, corruption and polity modeling.

  15. Political culture of civil society within synergetic paradigm context

    Directory of Open Access Journals (Sweden)

    I. Z. Derzhko

    2014-12-01

    society can be defined as a system separate and independent from the state, interpersonal, family, economic, cultural, religious, political relations and structures that are designed to provide the conditions for self-realization of individuals and groups. Priorities of civil society are in inverse points of the political process - the elections, the formation of the state, where society depend on the prospects for change; renewal of power, improve administrative efficiency of its structures. Political culture permeates the entire set of relationships that develop between political actors, the po­tential impact on the form of government, the structure of its institutions, allowing effectively regulate the relationship between the state and civil society, ensure social consensus. Political culture is a factor that can directly help or hinder democratic political development. This confirms the practice of developed democra­cies, which shows that it is a democratic political culture, is the foundation of stability and dynamic perfor­mance. Understanding the political regime as functional characteristics of the political system, including the methods and techniques of political domination, and the order of the citizen, society and political power, helps to define the connection mode of political culture and its place in it.  In a democracy, trust in government is directly determined by its ability to real dialogue with public opin­ion and its main source - the civil society. Democratic political systems require for their existence a certain type of political culture. The lack of long-term and large-scale practices of democratic institutions and pre­vent the consolidation of a democratic political culture society. The main areas of transformation of political culture are: establishment of a democratic type of political consciousness, the formation of political behavior on democratic principles, establishment of a democratic culture functioning administrative institutions

  16. Exponential Models of Legislative Turnover. [and] The Dynamics of Political Mobilization, I: A Model of the Mobilization Process, II: Deductive Consequences and Empirical Application of the Model. Applications of Calculus to American Politics. [and] Public Support for Presidents. Applications of Algebra to American Politics. Modules and Monographs in Undergraduate Mathematics and Its Applications Project. UMAP Units 296-300.

    Science.gov (United States)

    Casstevens, Thomas W.; And Others

    This document consists of five units which all view applications of mathematics to American politics. The first three view calculus applications, the last two deal with applications of algebra. The first module is geared to teach a student how to: 1) compute estimates of the value of the parameters in negative exponential models; and draw…

  17. Dynamic PET scanning and compartmental model analysis to determine cellular level radiotracer distribution in vivo

    International Nuclear Information System (INIS)

    Smith, G.T.; Hubner, K.F.; Goodman, M.M.; Stubbs, J.B.

    1992-01-01

    Positron emission tomography (PET) has been used to measure tissue radiotracer concentration in vivo. Radiochemical distribution can be determined with compartmental model analysis. A two compartment model describes the kinetics of N-13 ammonia ( 13 NH 3 ) in the myocardium. The model consists of a vascular space, Q 1 and a space for 13 NH 3 bound within the tissue, Q 2 . Differential equations for the model can be written: X(t) = AX(t) + BU( t), Y(t)= CX(t)+ DU(t) (1) where X(t) is a column vector [Q 1 (t); Q 2 (t)], U(t) is the arterial input activity measured from the left ventricular blood pool, and Y(t) is the measured tissue activity using PET. Matrices A, B, C, and D are dependent on physiological parameters describing the kinetics of 13 NH 3 in the myocardium. Estimated parameter matrices in Equation 1 have been validated in dog experiments by measuring myocardial perfusion with dynamic PET scanning and intravenous injection of 13 NH 3 . Tracer concentrations for each compartment can be calculated by direct integration of Equation 1. If the cellular level distribution of each compartment is known, the concentration of tracer within the intracellular and extracellular space can be determined. Applications of this type of modeling include parameter estimation for measurement of physiological processes, organ level dosimetry, and determination of cellular radiotracer distribution

  18. Determination of the protonation state of the Asp dyad: conventional molecular dynamics versus thermodynamic integration.

    Science.gov (United States)

    Huang, Jinfeng; Zhu, Yali; Sun, Bin; Yao, Yuan; Liu, Junjun

    2016-03-01

    The protonation state of the Asp dyad is important as it can reveal enzymatic mechanisms, and the information this provides can be used in the development of drugs for proteins such as memapsin 2 (BACE-1), HIV-1 protease, and rennin. Conventional molecular dynamics (MD) simulations have been successfully used to determine the preferred protonation state of the Asp dyad. In the present work, we demonstrate that the results obtained from conventional MD simulations can be greatly influenced by the particular force field applied or the values used for control parameters. In principle, free-energy changes between possible protonation states can be used to determine the protonation state. We show that protonation state prediction by the thermodynamic integration (TI) method is insensitive to force field version or to the cutoff for calculating nonbonded interactions (a control parameter). In the present study, the protonation state of the Asp dyad predicted by TI calculations was the same regardless of the force field and cutoff value applied. Contrary to the intuition that conventional MD is more efficient, our results clearly show that the TI method is actually more efficient and more reliable for determining the protonation state of the Asp dyad.

  19. Determination of boron over a large dynamic range by prompt-gamma activation analysis

    International Nuclear Information System (INIS)

    Harrison, R.K.; Landsberger, S.

    2009-01-01

    An evaluation of the PGAA method for the determination of boron across a wide dynamic range of concentrations was performed for trace levels up to 5 wt.% boron. This range encompasses a transition from neutron transparency to significant self- shielding conditions. To account for self-shielding, several PGAA techniques were employed. First, a calibration curve was developed in which a set of boron standards was tested and the count rate to boron mass curve was determined. This set of boron measurements was compared with an internal standard self-shielding correction method and with a method for determining composition using PGAA peak ratios. The advantages and disadvantages of each method are analyzed. The boron concentrations of several laboratory-grade chemicals and standard reference materials were measured with each method and compared. The evaluation of the boron content of nanocrystalline transition metals prepared with a boron-containing reducing agent was also performed with each of the methods tested. Finally, the k 0 method was used for non-destructive measurement of boron in catalyst materials for the characterization of new non-platinum fuel cell catalysts.

  20. A theoretical framework for determining cerebral vascular function and heterogeneity from dynamic susceptibility contrast MRI.

    Science.gov (United States)

    Digernes, Ingrid; Bjørnerud, Atle; Vatnehol, Svein Are S; Løvland, Grete; Courivaud, Frédéric; Vik-Mo, Einar; Meling, Torstein R; Emblem, Kyrre E

    2017-06-01

    Mapping the complex heterogeneity of vascular tissue in the brain is important for understanding cerebrovascular disease. In this translational study, we build on previous work using vessel architectural imaging (VAI) and present a theoretical framework for determining cerebral vascular function and heterogeneity from dynamic susceptibility contrast magnetic resonance imaging (MRI). Our tissue model covers realistic structural architectures for vessel branching and orientations, as well as a range of hemodynamic scenarios for blood flow, capillary transit times and oxygenation. In a typical image voxel, our findings show that the apparent MRI relaxation rates are independent of the mean vessel orientation and that the vortex area, a VAI-based parameter, is determined by the relative oxygen saturation level and the vessel branching of the tissue. Finally, in both simulated and patient data, we show that the relative distributions of the vortex area parameter as a function of capillary transit times show unique characteristics in normal-appearing white and gray matter tissue, whereas tumour-voxels in comparison display a heterogeneous distribution. Collectively, our study presents a comprehensive framework that may serve as a roadmap for in vivo and per-voxel determination of vascular status and heterogeneity in cerebral tissue.

  1. Aggregate size and structure determination of nanomaterials in physiological media: importance of dynamic evolution

    International Nuclear Information System (INIS)

    Afrooz, A. R. M. Nabiul; Hussain, Saber M.; Saleh, Navid B.

    2014-01-01

    Most in vitro nanotoxicological assays are performed after 24 h exposure. However, in determining size and shape effect of nanoparticles in toxicity assays, initial characterization data are generally used to describe experimental outcome. The dynamic size and structure of aggregates are typically ignored in these studies. This brief communication reports dynamic evolution of aggregation characteristics of gold nanoparticles. The study finds that gradual increase in aggregate size of gold nanospheres (AuNS) occurs up to 6 h duration; beyond this time period, the aggregation process deviates from gradual to a more abrupt behavior as large networks are formed. Results of the study also show that aggregated clusters possess unique structural conformation depending on nominal diameter of the nanoparticles. The differences in fractal dimensions of the AuNS samples likely occurred due to geometric differences, causing larger packing propensities for smaller sized particles. Both such observations can have profound influence on dosimetry for in vitro nanotoxicity analyses.Graphical Abstract

  2. Recent advances in applying mass spectrometry and systems biology to determine brain dynamics.

    Science.gov (United States)

    Scifo, Enzo; Calza, Giulio; Fuhrmann, Martin; Soliymani, Rabah; Baumann, Marc; Lalowski, Maciej

    2017-06-01

    Neurological disorders encompass various pathologies which disrupt normal brain physiology and function. Poor understanding of their underlying molecular mechanisms and their societal burden argues for the necessity of novel prevention strategies, early diagnostic techniques and alternative treatment options to reduce the scale of their expected increase. Areas covered: This review scrutinizes mass spectrometry based approaches used to investigate brain dynamics in various conditions, including neurodegenerative and neuropsychiatric disorders. Different proteomics workflows for isolation/enrichment of specific cell populations or brain regions, sample processing; mass spectrometry technologies, for differential proteome quantitation, analysis of post-translational modifications and imaging approaches in the brain are critically deliberated. Future directions, including analysis of cellular sub-compartments, targeted MS platforms (selected/parallel reaction monitoring) and use of mass cytometry are also discussed. Expert commentary: Here, we summarize and evaluate current mass spectrometry based approaches for determining brain dynamics in health and diseases states, with a focus on neurological disorders. Furthermore, we provide insight on current trends and new MS technologies with potential to improve this analysis.

  3. Determination of Original Infection Source of H7N9 Avian Influenza by Dynamical Model

    Science.gov (United States)

    Zhang, Juan; Jin, Zhen; Sun, Gui-Quan; Sun, Xiang-Dong; Wang, You-Ming; Huang, Baoxu

    2014-05-01

    H7N9, a newly emerging virus in China, travels among poultry and human. Although H7N9 has not aroused massive outbreaks, recurrence in the second half of 2013 makes it essential to control the spread. It is believed that the most effective control measure is to locate the original infection source and cut off the source of infection from human. However, the original infection source and the internal transmission mechanism of the new virus are not totally clear. In order to determine the original infection source of H7N9, we establish a dynamical model with migratory bird, resident bird, domestic poultry and human population, and view migratory bird, resident bird, domestic poultry as original infection source respectively to fit the true dynamics during the 2013 pandemic. By comparing the date fitting results and corresponding Akaike Information Criterion (AIC) values, we conclude that migrant birds are most likely the original infection source. In addition, we obtain the basic reproduction number in poultry and carry out sensitivity analysis of some parameters.

  4. Aggregate size and structure determination of nanomaterials in physiological media: importance of dynamic evolution

    Energy Technology Data Exchange (ETDEWEB)

    Afrooz, A. R. M. Nabiul [The University of Texas, Civil, Architectural and Environmental Engineering (United States); Hussain, Saber M. [Wright-Patterson AFB, Human Effectiveness Directorate, 711th Human Performance Wing, Air Force Research Laboratory (United States); Saleh, Navid B., E-mail: navid.saleh@utexas.edu [The University of Texas, Civil, Architectural and Environmental Engineering (United States)

    2014-12-15

    Most in vitro nanotoxicological assays are performed after 24 h exposure. However, in determining size and shape effect of nanoparticles in toxicity assays, initial characterization data are generally used to describe experimental outcome. The dynamic size and structure of aggregates are typically ignored in these studies. This brief communication reports dynamic evolution of aggregation characteristics of gold nanoparticles. The study finds that gradual increase in aggregate size of gold nanospheres (AuNS) occurs up to 6 h duration; beyond this time period, the aggregation process deviates from gradual to a more abrupt behavior as large networks are formed. Results of the study also show that aggregated clusters possess unique structural conformation depending on nominal diameter of the nanoparticles. The differences in fractal dimensions of the AuNS samples likely occurred due to geometric differences, causing larger packing propensities for smaller sized particles. Both such observations can have profound influence on dosimetry for in vitro nanotoxicity analyses.Graphical Abstract.

  5. The surface chemistry determines the spatio-temporal interaction dynamics of quantum dots in atherosclerotic lesions.

    Science.gov (United States)

    Uhl, Bernd; Hirn, Stephanie; Mildner, Karina; Coletti, Raffaele; Massberg, Steffen; Reichel, Christoph A; Rehberg, Markus; Zeuschner, Dagmar; Krombach, Fritz

    2018-03-01

    To optimize the design of nanoparticles for diagnosis or therapy of vascular diseases, it is mandatory to characterize the determinants of nano-bio interactions in vascular lesions. Using ex vivo and in vivo microscopy, we analyzed the interactive behavior of quantum dots with different surface functionalizations in atherosclerotic lesions of ApoE-deficient mice. We demonstrate that quantum dots with different surface functionalizations exhibit specific interactive behaviors with distinct molecular and cellular components of the injured vessel wall. Moreover, we show a role for fibrinogen in the regulation of the spatio-temporal interaction dynamics in atherosclerotic lesions. Our findings emphasize the relevance of surface chemistry-driven nano-bio interactions on the differential in vivo behavior of nanoparticles in diseased tissue.

  6. Non-Calorimetric Determination of the Adsorption Heat of Volatile Organic Compounds under Dynamic Conditions

    Directory of Open Access Journals (Sweden)

    Abdelhamid Korrir

    2015-04-01

    Full Text Available Avoiding strong chemical bonding, as indicated by lower heat of adsorption value, is among the selection criteria for Volatile Organic Compounds adsorbents. In this work, we highlight a non-calorimetric approach to estimating the energy of adsorption and desorption based on measurement of involved amounts, under dynamic conditions, with gaseous Fourier Transform Infrared spectroscopy. The collected data were used for obtaining adsorption heat values through the application of three different methods, namely, isosteric, temperature programmed desorption (TPD, and temperature-programmed adsorption equilibrium (TPAE. The resulting values were compared and discussed with the scope of turning determination of the heat of adsorption with non-calorimetric methods into a relevant decision making tool for designing cost-effective and safe operating of adsorption facilities.

  7. A Numerical Approach to Determine Attitude Dynamics of Floating Bodies with Irregular Configurations

    Directory of Open Access Journals (Sweden)

    Jiann-Lin Chen

    2014-07-01

    Full Text Available This study acquires the attitude dynamics of floating bodies with irregular configurations using an effective computational model, which has been validated theoretically and verified by experiments. By comparison a correlation formula was described to predict inclinations for the floating slender body imitating an excise torpedo. Thereafter a computational model was developed to account for bodies with attitudes in more general situations. For demonstration, a submersible was simulated to reveal that the inclinations vary abruptly around certain longitudinal locations of center of gravity. The property variations during water ingress assumption were presented. Similar to the virtue tank, an innovative concept of building the numerical data base for a specific floating body has been proposed, by which the position of its center of gravity can be obtained by interpolation from attitude data in tables as determined by the present computational model.

  8. Strategic political postures and political market orientation

    DEFF Research Database (Denmark)

    Ormrod, Robert P.; Henneberg, Stephan C.

    2010-01-01

    by developing an integrated concept of political marketing strategy using two complementary frameworks, namely Strategic Political Postures (SPP) and Political Market Orientation (PMO). We introduce the two main concepts and derive for each of the strategic posture-specific PMO profiles as well as inter......Recently, the areas of strategic political marketing and political market orientation have been the subject of several conceptual articles which have provided the theoretical foundations for further empirical work. However, despite the close conceptual relatedness of the proposed concepts......, these have yet to be integrated to provide a more nuanced framework which both researchers and political marketing practitioners can utilise in the development of strategies and offerings with which to achieve their organizational goals. The aim of this conceptual paper is to address this deficit...

  9. THE CHALLENGES POLITICAL LEADERSHIP FACES IN THE MODERN WORLD

    OpenAIRE

    T. N. Samsonova; E. S. Shpuga

    2016-01-01

    Political leadership is a concept central to understanding political processes and outcomes, yet its definition is elusive. The study of political leadership has a long history. Many disciplines have contributed to this study, including history, philosophy, political theory, psychology etc. Leadership is a process in which leaders and followers interact dynamically in a particular situation or context. Leaders must be able to connect with followers to understand their mood and their initiativ...

  10. Molecular determinants of epidermal growth factor binding: a molecular dynamics study.

    Directory of Open Access Journals (Sweden)

    Jeffrey M Sanders

    Full Text Available The epidermal growth factor receptor (EGFR is a member of the receptor tyrosine kinase family that plays a role in multiple cellular processes. Activation of EGFR requires binding of a ligand on the extracellular domain to promote conformational changes leading to dimerization and transphosphorylation of intracellular kinase domains. Seven ligands are known to bind EGFR with affinities ranging from sub-nanomolar to near micromolar dissociation constants. In the case of EGFR, distinct conformational states assumed upon binding a ligand is thought to be a determining factor in activation of a downstream signaling network. Previous biochemical studies suggest the existence of both low affinity and high affinity EGFR ligands. While these studies have identified functional effects of ligand binding, high-resolution structural data are lacking. To gain a better understanding of the molecular basis of EGFR binding affinities, we docked each EGFR ligand to the putative active state extracellular domain dimer and 25.0 ns molecular dynamics simulations were performed. MM-PBSA/GBSA are efficient computational approaches to approximate free energies of protein-protein interactions and decompose the free energy at the amino acid level. We applied these methods to the last 6.0 ns of each ligand-receptor simulation. MM-PBSA calculations were able to successfully rank all seven of the EGFR ligands based on the two affinity classes: EGF>HB-EGF>TGF-α>BTC>EPR>EPG>AR. Results from energy decomposition identified several interactions that are common among binding ligands. These findings reveal that while several residues are conserved among the EGFR ligand family, no single set of residues determines the affinity class. Instead we found heterogeneous sets of interactions that were driven primarily by electrostatic and Van der Waals forces. These results not only illustrate the complexity of EGFR dynamics but also pave the way for structure-based design of

  11. Politics Backstage - Television Documentaries, Politics and Politicians

    OpenAIRE

    Ib Bondebjerg

    2006-01-01

    This article deals with "the transformation of visibility" in political discourse on and representation of politics and politicians in resent Dansih television documentaries. Drawing on the theories of Habermas, Meyrowitz and John B. Thompson, it is argued that the political persona on television is moved closer to the individual citizen, creating a sort "mediated quasi-inter- action" giving mediated communication a stronger element of face-to-face interaction. Together...

  12. Political entrepreneurship and bidding for political monopoly

    OpenAIRE

    Michael Wohlgemuth

    2000-01-01

    An analytical framework for dealing with political entrepreneurship and reform is proposed which is based on some new combinations of Schumpeterian political economy, an extended version of Tullock's model of democracy as franchise-bidding for natural monopoly and some basic elements of New Institutional Economics. It is shown that problems of insufficient award criteria and incomplete contracts which may arise in economic bidding schemes, also - and even more so - characterise political comp...

  13. Resource Windfalls, Political Regimes, and Political Stability

    OpenAIRE

    Francesco Caselli; Andrea Tesei

    2011-01-01

    We study theoretically and empirically whether natural resource windfalls affect political regimes. We document the following regularities. Natural resource windfalls have no effect on the political system when they occur in democracies. However, windfalls have significant political consequences in autocracies. In particular, when an autocratic country receives a positive shock to its flow of resource rents it responds by becoming even more autocratic. Furthermore, there is heterogeneity in t...

  14. Adult Development Theory and Political Analysis: An Integral Account of Social and Political Change in Soviet and Post-Soviet Russia

    Directory of Open Access Journals (Sweden)

    Elke Fein

    2010-03-01

    Full Text Available I propose a reading of social, political and discursive change in Soviet and post-Soviet Russia which is inspired by an integral, above all developmental perspective. In view of explaining Russia’s current political trajectory, I make several arguments. First, I claim that Russian politics are still to a large extent determined by the effects of a threefold crisis of sense-making. Neither the collapse of the Soviet empire, nor the question of how to define democratic government nor the lack of a resilient national identity have so far been resolved and re-appropriated in a transformative manner. Second, I try to show how this affects various aspects and dimensions of Russian politics. Third, I engage in a brief overview of a number of adult development models, asking to what extent and how the characteristics of consciousness development, particular stage characteristics, and the general logics and dynamics of successful and unsuccessful development these models describe can be helpful to the analysis of Russian politics. Also, I discuss their compatibility and parallels with discourse theory and analysis as an increasingly popular methodology in Russian Studies. Of the developmental models reviewed, the theory of political development by Stephen Chilton and the self-protective action logic in Susanne Cook-Greuter’s model of self and identity development are particularly relevant for my purpose. On these grounds, it is argued that since Vladimir Putin’s taking office as Russian president and later prime-minister, politics and (official political discourse have increasingly come to follow self-protective action logics as conceived by Susanne Cook-Greuter. This diagnosis, which could either be understood as a regression or as a realignment of internal and external dimensions of political development, can be explained as a reaction to Russia’s crisis of identity followed by a loss of internal stability and international influence connected

  15. Memetics and political science. Chosen problems

    OpenAIRE

    Donaj, Łukasz; Barańska, Marzena

    2013-01-01

    Interdisciplinarity has increasingly become a determinant of the quality of research. A particular challenge faces political science, which in itself is an interdisciplinary area of study. Or else what is interdisciplinary research including the methodologies of political science and, for example, neuroscience to depend on? In this article, the authors try to identify what political science can gain by using such fields as memetics. The subject matter of the publication is a brief description...

  16. Contradictions of international migration in terms of political economy

    Directory of Open Access Journals (Sweden)

    Josifidis Kosta

    2016-01-01

    political economy approach is faced with the tension between the two approaches. The first proposed regulation and workforce management at the supranational level. The other remains in the framework of “methodological nationalism”: the appropriate starting point is the national state. Given the fact that structural inequalities should be recognized at a global level, and that processes of migration show that there is a certain hierarchical global flow in the context of the dynamics of workforce, the first approach proves to be inadequate. In other words, the second approach could not articulate the relevant tendencies. Accordingly, the political economy approach that intends to include complex determination regarding the migration should integrate the national trends in the supranational framework. But, proper research should take into account that globalization and its complex order consist of a number of interventions and interferences. This means that the aforementioned approach must develop sufficiently complex methodology in order to articulate its selected subject.

  17. Determination of the Lyapunov exponents and the information dimension in some dynamical systems

    International Nuclear Information System (INIS)

    Ziar, A.

    1992-01-01

    Classical phase space for some dynamical systems relevant in nuclear physics are studied. The nuclei is described by convex billiards or in the mean field theory. In both cases, besides the Poincare surface of sections which gives a qualitative description, each trajectory is characterized by its maximum Lyapunov exponent. The analytic monodromy matrix for a free particle in convex billiards rotating around an axis perpendicular to the plan of billiards, is determined, generalizing a previous result obtained for static billiards. In the frame of the mean field theory, it is shown an interesting alternative to the Lyapunov exponent, which is the dimension of the manifold in the phase space associated to the trajectory, leading to the evaluation of the relative chaotic volume in phase space as a function of the different parameters. The dimension appears as a character which could be determined easily for the rotating mean field, where the dimension of the manifold on which the trajectory is lying could be equal to 5 or 4 for chaotic trajectories, and less or equal to 3 for regular ones

  18. Shock melting method to determine melting curve by molecular dynamics: Cu, Pd, and Al

    International Nuclear Information System (INIS)

    Liu, Zhong-Li; Zhang, Xiu-Lu; Cai, Ling-Cang

    2015-01-01

    A melting simulation method, the shock melting (SM) method, is proposed and proved to be able to determine the melting curves of materials accurately and efficiently. The SM method, which is based on the multi-scale shock technique, determines melting curves by preheating and/or prepressurizing materials before shock. This strategy was extensively verified using both classical and ab initio molecular dynamics (MD). First, the SM method yielded the same satisfactory melting curve of Cu with only 360 atoms using classical MD, compared to the results from the Z-method and the two-phase coexistence method. Then, it also produced a satisfactory melting curve of Pd with only 756 atoms. Finally, the SM method combined with ab initio MD cheaply achieved a good melting curve of Al with only 180 atoms, which agrees well with the experimental data and the calculated results from other methods. It turned out that the SM method is an alternative efficient method for calculating the melting curves of materials

  19. Shock melting method to determine melting curve by molecular dynamics: Cu, Pd, and Al.

    Science.gov (United States)

    Liu, Zhong-Li; Zhang, Xiu-Lu; Cai, Ling-Cang

    2015-09-21

    A melting simulation method, the shock melting (SM) method, is proposed and proved to be able to determine the melting curves of materials accurately and efficiently. The SM method, which is based on the multi-scale shock technique, determines melting curves by preheating and/or prepressurizing materials before shock. This strategy was extensively verified using both classical and ab initio molecular dynamics (MD). First, the SM method yielded the same satisfactory melting curve of Cu with only 360 atoms using classical MD, compared to the results from the Z-method and the two-phase coexistence method. Then, it also produced a satisfactory melting curve of Pd with only 756 atoms. Finally, the SM method combined with ab initio MD cheaply achieved a good melting curve of Al with only 180 atoms, which agrees well with the experimental data and the calculated results from other methods. It turned out that the SM method is an alternative efficient method for calculating the melting curves of materials.

  20. Using Maximal Isometric Force to Determine the Optimal Load for Measuring Dynamic Muscle Power

    Science.gov (United States)

    Spiering, Barry A.; Lee, Stuart M. C.; Mulavara, Ajitkumar P.; Bentley, Jason R.; Nash, Roxanne E.; Sinka, Joseph; Bloomberg, Jacob J.

    2009-01-01

    Maximal power output occurs when subjects perform ballistic exercises using loads of 30-50% of one-repetition maximum (1-RM). However, performing 1-RM testing prior to power measurement requires considerable time, especially when testing involves multiple exercises. Maximal isometric force (MIF), which requires substantially less time to measure than 1-RM, might be an acceptable alternative for determining the optimal load for power testing. PURPOSE: To determine the optimal load based on MIF for maximizing dynamic power output during leg press and bench press exercises. METHODS: Twenty healthy volunteers (12 men and 8 women; mean +/- SD age: 31+/-6 y; body mass: 72 +/- 15 kg) performed isometric leg press and bench press movements, during which MIF was measured using force plates. Subsequently, subjects performed ballistic leg press and bench press exercises using loads corresponding to 20%, 30%, 40%, 50%, and 60% of MIF presented in randomized order. Maximal instantaneous power was calculated during the ballistic exercise tests using force plates and position transducers. Repeated-measures ANOVA and Fisher LSD post hoc tests were used to determine the load(s) that elicited maximal power output. RESULTS: For the leg press power test, six subjects were unable to be tested at 20% and 30% MIF because these loads were less than the lightest possible load (i.e., the weight of the unloaded leg press sled assembly [31.4 kg]). For the bench press power test, five subjects were unable to be tested at 20% MIF because these loads were less than the weight of the unloaded aluminum bar (i.e., 11.4 kg). Therefore, these loads were excluded from analysis. A trend (p = 0.07) for a main effect of load existed for the leg press exercise, indicating that the 40% MIF load tended to elicit greater power output than the 60% MIF load (effect size = 0.38). A significant (p . 0.05) main effect of load existed for the bench press exercise; post hoc analysis indicated that the effect of

  1. Oil: Economics and politics

    International Nuclear Information System (INIS)

    Ayoub, A.

    1994-01-01

    A review is presented of the evolution of the international petroleum sector since 1973 with a special emphasis on the interdependence between the economic and political factors that influence it. Two issues are focused on: the effects of the nationalization of oil companies on the sharing of oil rents and on changes in the structure of the oil market; and the determination of oil prices. Definitions are presented of oil rents, and the reasons for OPEC nationalization of oil companies are explored. The effects of nationalization on market structures, expansion of free markets, and vertical integration are discussed. The existence of an oil price floor and the reasons for such a floor are examined. It is shown that nationalization induced an internalization of rents by the producing countries, leading to the emergence of a differential rent supported by the politics of the industrialized countries. Nationalization led to the breakup of systems of vertical and horizontal integration, with replacement by a new dual structure with OPEC controlling the upstream activities of the oil sector and oil companies controlling the downstream ones. Prices move between a floor price set by the costs of substitute deposits in the U.S., while the determination of ceiling levels by OPEC rests on successive fragile compromises. Overall oil is still a strategic product, despite the existence of spot markets, forward trading options, etc. 29 refs

  2. Shaping Political Preferences: Information Effects in Political-Administrative Systems

    DEFF Research Database (Denmark)

    Blom-Hansen, Jens; Bækgaard, Martin; Serritzlew, Søren

    2016-01-01

    shows that even in a setting where the information is not disclosed by a powerful sender, information may have a stronger impact on political preferences than other well-known determinants such as committee and party affiliation. Our findings speak to learning theories, knowledge perspectives...

  3. Perceived Organisational Politics, Political Behaviour and Employee ...

    African Journals Online (AJOL)

    facing both private and public sector organisations (Nidhi & Prerna, 2015;. Gotsis & Kortezi ... These studies suggest that organisational politics often interfere with normal ..... Rawls's (1971) theory of justice provides a theoretical foundation for the relationship between ..... Ethical considerations in organisational politics: ...

  4. Celebrity politics: the politics of late modernity?

    NARCIS (Netherlands)

    Marsh, D.; t Hart, P.; Tindall, K.

    2010-01-01

    The academic literature on celebrity politics is rarely systematic; more often it is superficial and anecdotal. In addition, most of the literature focuses either upon classifying different types/categories of celebrity politicians and their roles in politics, or upon the question of whether the

  5. Exploring Women's Understanding of Politics, Political Contestation ...

    International Development Research Centre (IDRC) Digital Library (Canada)

    Exploring Women's Understanding of Politics, Political Contestation and Gender Transformation in the Caribbean. IDRC's Democratic Governance, Women's Rights and Gender Equality initiative is supporting a body of comparative research on whether and how democratic processes and institutions are responding to ...

  6. On higher ground: how well can dynamic body acceleration determine speed in variable terrain?

    Directory of Open Access Journals (Sweden)

    Owen R Bidder

    Full Text Available INTRODUCTION: Animal travel speed is an ecologically significant parameter, with implications for the study of energetics and animal behaviour. It is also necessary for the calculation of animal paths by dead-reckoning. Dead-reckoning uses heading and speed to calculate an animal's path through its environment on a fine scale. It is often used in aquatic environments, where transmission telemetry is difficult. However, its adoption for tracking terrestrial animals is limited by our ability to measure speed accurately on a fine scale. Recently, tri-axial accelerometers have shown promise for estimating speed, but their accuracy appears affected by changes in substrate and surface gradients. The purpose of the present study was to evaluate four metrics of acceleration; Overall dynamic body acceleration (ODBA, vectorial dynamic body acceleration (VDBA, acceleration peak frequency and acceleration peak amplitude, as proxies for speed over hard, soft and inclined surfaces, using humans as a model species. RESULTS: A general linear model (GLM showed a significant difference in the relationships between the metrics and speed depending on substrate or surface gradient. When the data from all surface types were considered together, VeDBA had the highest coefficient of determination. CONCLUSIONS: All of the metrics showed some variation in their relationship with speed according to the surface type. This indicates that changes in the substrate or surface gradient during locomotion by animals would produce errors in speed estimates, and also in dead-reckoned tracks if they were calculated from speeds based entirely on a priori calibrations. However, we describe a method by which the relationship between acceleration metrics and speed can be corrected ad hoc, until tracks accord with periodic ground truthed positions, obtained via a secondary means (e.g. VHF or GPS telemetry. In this way, dead-reckoning provides a means to obtain fine scale movement data

  7. Targeted Molecular Dynamics to determine Focal Adhesion Targeting Domain Folding Intermediates

    Directory of Open Access Journals (Sweden)

    Pallavi Mohanty

    2017-10-01

    Full Text Available The Focal adhesion kinase (FAT domain of Focal Adhesion Kinase is a four helical bundle known for conformational plasticity. FAT adopts two distinctly different conformations i.e., close (cFAT and arm-exchanged (aeFAT states under native conditions [1]. The slow transition from cFAT to aeFAT is likely to proceed through an open intermediate state that allows YENV motif to attain β-turn conformation and phosphorylation of Y925 by Src kinases [2]. The two end states of FAT are known to interact with Paxillin and are responsible for maintaining steady state in Heart while intermediate conformation interacts with Grb2-SH2 leading to Pathological Cardiac Hypertrophy (PAH [2]. 10ns Targeted Molecular Dynamics (TMD was done between c- and aeFAT in order to explore the conformational transition and to capture pathologically relevant oFAT. Cluster and dynamic cross correlation analysis (DCCA of TMD generated trajectory was done and the selected FAT intermediate was docked with Grb2-SH2 using HADDOCK v2.2 docking followed by molecular dynamics. Conservation analysis of FAT-Grb2 binding site was done using CONSURF [3]. A Pharmacophore FAT-Grb2 complex was generated using SPARKv1.2 and submitted for Virtual screening using BLAZE v4. Drug likeliness and ADMET properties were calculated using MOLINSPIRATION tool. TMD reveals six clusters and DCCA showed positively and negatively correlated region along the transition pathway. Intermediates with competence for Grb2 interaction were docked with Grb2 and best binding complex was further refined. MMPBSA binding energy calculations revealed the best binding pose where the phosphorylated YENV motif of Human FAT interacted with a charged and hydrophobic pocket of Grb2. The conservation analysis showed that the charged pocket was more conserved in comparison with the hydrophobic pocket, hence providing useful insights on binding and specificity determining residues in Grb2. Virtual screening using the pharmacophore

  8. BLOGS ARE THE ELEMENTS OF POLITICAL FIELD

    Directory of Open Access Journals (Sweden)

    Юлия Игоревна Нестеренок

    2014-05-01

    Full Text Available The article analyzes the influence of blogosphere on the political process. The author studies political mechanisms of public policy-making through the activity of political blogs. The article also grounds the choice of the research tools and shows that the Internet is becoming, in contrast to the other media platforms, the territory of free self-expression.The article analyses and summarizes different communication theories and defines blogs’ role in a modern political and communication space.The application of modern Internet technologies and the development of other mass media encourage the formation of different representational images of political events.During the study different types of communicative interaction in different types of democracy are represented in the article, and as well the increase of Internet community role’s influence on the modern political process.Democratic reforms are inevitably linked with the increase of public political activity, where one of the forms of expression of one’s opinion is political blogging.In a modern political space one can note a new generation of consumers of media goods with skills, talents, interest and enthusiasm to use the opened opportunities of creating and transforming the continent. In the summary we point out that modern political process differs the appearance of new determinants of mass media development as well as the development of other communication facilities.DOI: http://dx.doi.org/10.12731/2218-7405-2013-10-44

  9. Political Values or the Value of Politics

    Directory of Open Access Journals (Sweden)

    Simoska, Emilija

    2016-04-01

    Full Text Available This essay was motivated by the gap between proclaimed democratic principles and the perceptions of politics which are exhibited by the citizens in transitional countries -more specifically in the Republic of Macedonia. It is based on research data collected in the past few decades, which illustrate that, in their political actions, the citizens are highly motivated by personal benefits and profits, rather than by their internalized values and ideologies. Non-democratic, authoritarian values prevail, while politics is perceived as a value itself, in the most materialistic meaning of the word. It creates a suitable milieu for growth of corruption, nepotism and clientelism. The authors conclude that such a circulus vitsiosus is a corner stone of the Macedonian political regime, and an enormous obstacle for the advancement of the participative, democratic political culture in reality, in spite of its formal acceptance.

  10. Simple method of dynamic Young’s modulus determination in lime and cement mortars

    Directory of Open Access Journals (Sweden)

    Rosell, J. R.

    2011-03-01

    Full Text Available The present work explains a simple method to determine the dynamic Young module (MOE by inducing a set of small mechanical perturbation to samples of lime and cement mortars and correlating the results obtained with results determined using other techniques and methods. The procedure described herein follows the instructions stated in the UNE-EN ISO 12680-1 standard for refractory products although in this study the instructions are applied to standardized RILEM 4x4x16 cm test samples made of lime and cement mortars. In addition, MOE determinations are obtained by using ultrasonic impulse velocity while static Young's modulus determinations are obtained by performing conventional bending tests. The ability of this procedure to correlate with results from other techniques, along with its simplicity, suggests that it can be widely adapted to determine the deformability of mortars under load using standardized samples.

    El presente trabajo muestra un método simple para determinar el módulo de Young dinámico (MOE a partir de pequeñas perturbaciones mecánicas producidas a probetas de mortero de cal y de cemento, correlacionando los resultados obtenidos con las correspondientes mediciones realizadas con otras técnicas. El procedimiento sigue básicamente las instrucciones fijadas en la norma UNE-EN ISO 12680-1 de productos refractarios, pero aplicándolo a probetas normalizadas RILEM 4x4x16 de morteros confeccionados con cal y cemento. Paralelamente se realizan determinaciones del MOE a partir de la velocidad de paso de impulsos ultrasónicos y determinaciones del módulo de Young estático a partir de ensayos de flexión convencionales. La simplicidad del método aplicado y la correlación de los resultados obtenidos con las variables medidas permiten concluir que esta metodología es de aplicación directa para determinar la deformabilidad bajo carga de los morteros a partir de probetas normalizadas.

  11. How Politics Shapes the Growth of Rules

    DEFF Research Database (Denmark)

    Jakobsen, Mads Leth Felsager; Mortensen, Peter Bjerre

    2015-01-01

    when, why, and how political factors shape changes in the stock of rules. Furthermore, we test these hypotheses on a unique, new data set based on all Danish primary legislation and administrative rules from 1989 to 2011 categorized into 20 different policy domains. The analysis shows......This article examines the impact of politics on governmental rule production. Traditionally, explanations of rule dynamics have focused on nonpolitical factors such as the self-evolvement of rules, environmental factors, and decision maker attributes. This article develops a set of hypotheses about...... that the traditional Weberian “rules breed rules” explanations must be supplemented with political explanations that take party ideology and changes in the political agenda into account. Moreover, the effect of political factors is indistinguishable across changes in primary laws and changes in administrative rules...

  12. Political Orientations, Intelligence and Education

    Science.gov (United States)

    Rindermann, Heiner; Flores-Mendoza, Carmen; Woodley, Michael A.

    2012-01-01

    The social sciences have traditionally assumed that education is a major determinant of citizens' political orientations and behavior. Several studies have also shown that intelligence has an impact. According to a theory that conceptualizes intelligence as a "burgher" (middle-class, civil) phenomenon--intelligence should promote civil…

  13. Sustainability : Politics and governance

    NARCIS (Netherlands)

    Heinrichs, Harald; Biermann, Frank

    2016-01-01

    he article gives an overview of global sustainability policy and politics. It is shown how international policy making on sustainable development has progressed from environmental policy toward recent approaches of Earth system governance. Key challenges of international sustainability politics are

  14. Political Economy of Finance

    NARCIS (Netherlands)

    Perotti, E.

    2013-01-01

    This survey reviews how a recent political economy literature helps explaining variation in governance, competition, funding composition and access to credit. Evolution in political institutions can account for financial evolution, and appear critical to explain rapid changes in financial structure,

  15. Politics, Security, Theory

    DEFF Research Database (Denmark)

    Wæver, Ole

    2011-01-01

    theory is found to ‘act politically’ through three structural features that systematically shape the political effects of using the theory. The article further discusses – on the basis of the preceding articles in the special issue – three emerging debates around securitization theory: ethics......This article outlines three ways of analysing the ‘politics of securitization’, emphasizing an often-overlooked form of politics practised through theory design. The structure and nature of a theory can have systematic political implications. Analysis of this ‘politics of securitization......’ is distinct from both the study of political practices of securitization and explorations of competing concepts of politics among security theories. It means tracking what kinds of analysis the theory can produce and whether such analysis systematically impacts real-life political struggles. Securitization...

  16. Comparing Political Communication

    OpenAIRE

    Pfetsch, Barbara; Esser, Frank

    2012-01-01

    This chapter describes the maturation of comparative political communications as a sub-discipline and defines its conceptual core. It then lays out the concept of “political communication system”. At the macro-level, this model captures the patterns of interaction between media and politics as social systems; at the micro-level it captures the interactions between media and political actors as individuals or organizations. Comparative research in this tradition focuses on the structure of pol...

  17. Oil: economic and political factors

    International Nuclear Information System (INIS)

    Ayoub, A.

    1994-01-01

    This article deals with the evolution of the international petroleum sector since 1973 with a special view to interdependence between the economic and political factors that influence it. Two issues are focused upon: (1) the effects of the nationalization of oil companies on the sharing of oil rents and on changes in the structure of the oil market; and (2) the determination of oil prices. The latter involves a discussion of, on the one hand, the political and economic behaviour of the United States and Saudi Arabia and, on the other, the combination of cooperation and conflict that has tended to characterize relations among OPEC countries. (author). 30 refs

  18. The international politics of geoengineering:

    DEFF Research Database (Denmark)

    Corry, Olaf

    2017-01-01

    the politics of climate change dramatically, yet in evaluating whether they might ultimately reduce climate risks, their political and security implications have so far not been given adequate prominence. This article puts forward what it calls the ‘security hazard’ and argues that this could be a crucial...... factor in determining whether a technology is able, ultimately, to reduce climate risks. Ideas about global governance of geoengineering rely on heroic assumptions about state rationality and a generally pacific international system. Moreover, if in a climate engineered world weather events become...

  19. Uncovering the political in non-political young muslim immigrant identities

    Directory of Open Access Journals (Sweden)

    Niels Nørgaard Kristensen

    2011-01-01

    Full Text Available The theme of this paper is political identity and participation amongMuslim migrant young people in Denmark. Political identity is analysedby examining students’ political interests and perception of themselves as participants in politics, as well as their rationalities for politics. In order to address the research question ‘What characterizes political identities among Muslim immigrant young people in schools?’ we interviewed eight Muslim students from a Danish upper secondary school and from different national origins. The students’ political orientations seemed quite contradictory, even among those who might readily have been identified as a-political. Despite moderate political interest, all students showed some inclinations to participate in elections or in particular issues. However, they emphasized that their social studies classes primarily provided them with factual knowledge experience, and some students found this knowledge useful. None of the students seemed to experience school as an arena for participation. Consequently, there is first a need to emphasize the significance of a dynamic perspective on the phenomenon of political identity, and second, we need to know how students in school should be regarded as citizens in ‘the making’ or as equal citizens in a participatory arena.

  20. The International Politics of IFRS Harmonization

    OpenAIRE

    Ramanna, Karthik

    2013-01-01

    The globalization of accounting standards as seen through the proliferation of IFRS worldwide is one of the most important developments in corporate governance over the last decade. I offer an analysis of some international political dynamics of countries' IFRS harmonization decisions. The analysis is based on field studies in three jurisdictions: Canada, China, and India. Across these jurisdictions, I first describe unique elements of domestic political economies that are shaping IFRS polici...

  1. Orçamento Participativo e as novas dinâmicas políticas locais Participatory budgeting and new local political dynamics

    Directory of Open Access Journals (Sweden)

    Luciana Andressa Martins de Souza

    2011-01-01

    Full Text Available O presente estudo argumenta que os desdobramentos das relações de conflito entre o Orçamento Participativo (OP e o Executivo, o Legislativo e os partidos no âmbito do governo municipal, explicam em parte as variações do alcance dessa experiência participativa. Para isso, compara três experiências de OP desenvolvidas no interior do estado de São Paulo - Matão, Rio Claro e São Carlos - que se assemelham em vários aspectos, mas se distinguem por variações em suas trajetórias (contínua, descontínua e interrompida nas últimas três gestões municipais. Em suma, conclui que os padrões das relações de conflito e cooperação entre os atores políticos locais estudados contribuem para os diferentes graus de abrangência do OP, bem como para o aparecimento de novos desenhos de políticas locais.The current study argues that the development of conflictiv relationships between Participatory Budgeting (PB, the Executive, the Legislative, and parties in the area of municipal government, in part explain the variations in reach of these participatory experiments. It compares three experiments in PB carried out in the interior of the state of São Paulo - Matão, Rio Claro, and São Carlos - that are similar in various ways, but which are distinguished by the variation in the trajectory of their PB programs (continuous, discontinuous, and broken in the last three municipal administrations. In sum, it concludes that the patterns in conflictual relationships and cooperation between the studied local political actors contribute to the varying scope of PB, as to the emergence of new local political designs.

  2. The equilibrium price range of oil: economics, politics and uncertainty in the formation of oil prices

    International Nuclear Information System (INIS)

    Giraud, P.-N.

    1995-01-01

    This paper attempts to clarify the articulation between economic and political factors in the formation of petroleum prices. The essential point is that when factors control significant low cost reserves and will not or cannot adopt behaviour of a 'substantial economic rationality' then the economic analysis does not allow a unique dynamic equilibrium price to be determined. However, it does permit definition of an equilibrium price range within which political preferences may be expressed. Finally, the paper draws some conclusions on what could be discussed within the scope of a new oil producer-consumer dialogue. (author)

  3. Western Political Consulting Techniques and Post-Soviet Political Technology in Political Campaigns in Latvia

    OpenAIRE

    Bērziņa, Ieva

    2012-01-01

    Western Political Consulting Techniques and Post-Soviet Political Technology in Political Campaigns in Latvia Ieva Dmitričenko Keywords: political campaignsm political consulting, political technology, parties, marketing, media Political campaigning is an international phenomenon, because there is a free flow of information, knowledge and human resource among practitioners of political campaigning in various countries. As a result political campaigning techniques that have proven to ...

  4. From everyday conversation to political action : Talking austerity in online ‘third spaces’

    NARCIS (Netherlands)

    Graham, Todd; Jackson, Daniel; Wright, Scott

    2015-01-01

    Taking forward a new agenda for online political deliberation – the study of everyday political talk in non-political, online ‘third spaces’ – this article examines the dynamics of political talk across three general interest UK based online forums. The quantitative analysis found that discussions

  5. Analyzing Political Television Advertisements.

    Science.gov (United States)

    Burson, George

    1992-01-01

    Presents a lesson plan to help students understand that political advertisements often mislead, lie, or appeal to emotion. Suggests that the lesson will enable students to examine political advertisements analytically. Includes a worksheet to be used by students to analyze individual political advertisements. (DK)

  6. Political Education in School

    Science.gov (United States)

    Dag, Nilgun; Sozer, Mehmet Akif; Sel, Burcu

    2015-01-01

    Political education is a term with negative associations and triggering prejudiced approaches and discourses--maybe some paranoid thoughts--like "keep politics away from education!" in the minds of several people. This article deals with "political education" phenomenon almost never discussed and made subject to scientific…

  7. What is Political Psychology?

    Science.gov (United States)

    Deutsch, Morton

    1983-01-01

    Political psychology is the study of the bidirectional interaction of political and psychological processes. This academic discipline was founded after the First World War by Harold D. Lasswell. The content of political psychology is discussed and illustrative studies of the field are briefly summarized. (CS)

  8. Tracking Politics with POWER

    Science.gov (United States)

    Moreira, Silvio; Batista, David S.; Carvalho, Paula; Couto, Francisco M.; Silva, Mario J.

    2013-01-01

    Purpose: POWER is an ontology of political processes and entities. It is designed for tracking politicians, political organizations and elections, both in mainstream and social media. The aim of this paper is to propose a data model to describe political agents and their relations over time. Design/methodology/approach: The authors propose a data…

  9. Kentucky physicians and politics.

    Science.gov (United States)

    VonderHaar, W P; Monnig, W B

    1998-09-01

    Approximately 19% of Kentucky Physicians are KEMPAC members or contribute to state legislative and Gubernatorial candidates. This limited study of political activity indicates that a small percentage of physicians participate in the political process. Despite the small number of contributors to state legislative candidates, KMA's legislative and lobbying effort is highly effective and members receive high quality service and representation in the political arena.

  10. Religion and Politics by Other Means

    Directory of Open Access Journals (Sweden)

    José Fernando Serrano Amaya

    2018-01-01

    Full Text Available The article discusses the 2016 debate over egalitarian adoption in Colombia in order to suggest that in the fields of gender and sexuality, religion and politics constitute the same flow of signifiers. That flow is dislocated, temporary, and unstable, since it depends on the dynamics of social conflicts and political transitions. Thus, the Colombian case can be interpreted as the emergence of a religious project in political terms, which secularizes its discourse in order to spiritualize society.  In turn, both the legal debate, with its appeal to State authority, and populism, with its longing to return to founding principles, are means for that emergence.

  11. Politically Active Home Economists: Their Socialization to Politics.

    Science.gov (United States)

    Ley, Connie J.

    1980-01-01

    A nationwide study identified a pattern of political socialization for home economists who were politically active. The most outstanding feature of the politically active subjects was their perception that political activity is a professional role. (SK)

  12. Interaction between age and aerobic fitness in determining heart rate dynamics

    International Nuclear Information System (INIS)

    McNarry, M A; Lewis, M J

    2012-01-01

    Heart rate variability (HRV) and phase-rectified signal averaging (PRSA) estimates of heart rate dynamics are diminished in older people compared with younger people. However, it is not fully elucidated whether these differences are related to age per se or to the concomitant influence of aerobic fitness. Aerobic fitness (peak oxygen uptake, gas exchange threshold, oxygen uptake kinetics, exercise economy) was assessed in 70 healthy adults (41 male) aged 18–57 years. Participants also underwent a 24 h, ambulatory ECG for the derivation of HRV and PRSA variables. HRV was most sensitive to age and aerobic fitness when measured during the morning period (6 am–12 pm). HRV and PRSA were both diminished with age and were higher in aerobically superior participants. The decline in HRV with age was predominantly attributable to age itself (33%), with aerobic fitness representing an additional modulating factor. The present study also provides tentative evidence that assessment of the influence of aerobic fitness should not rely on .VO 2peak alone. These findings demonstrate that age per se is an important factor in determining HRV. However, given the clinical importance of diminished HRV and the immutable nature of aging, the potential significance of physical activity/training to enhance cardiac regulatory function should not be underestimated. (paper)

  13. Determinants of dynamic hyperinflation during metronome-paced tachypnea in COPD and normal subjects.

    Science.gov (United States)

    Cooper, C B; Calligaro, G L; Quinn, M M; Eshaghian, P; Coskun, F; Abrazado, M; Bateman, E D; Raine, R I

    2014-01-01

    In COPD, dynamic hyperinflation (DH) occurs during exercise and during metronome-paced tachypnea (MPT). We investigated the relationship of DH with breathing pattern and ventilation (V˙E) in COPD and normal subjects (NS). In 35 subjects with moderate COPD and 17 younger healthy volunteers we measured inspiratory capacity (IC), breathing frequency (fR), expiratory time (TE), ventilation (V˙E) and end-tidal carbon dioxide tension (PETCO2) at baseline and after 30s of MPT at 40breaths/min with metronome-defined I:E ratios of 1:1 and 1:2. A reduction in IC (ΔIC) was taken to indicate DH. In COPD subjects, DH correlated with TE but not with V˙E or PETCO2, and was best predicted by total lung capacity. NS also showed DH (although less than in COPD), which correlated with PETCO2 but not with fR, TE or V˙E. We conclude that MPT evokes DH in both NS and patients with COPD. TE is the most important determinant of DH during MPT in patients with COPD. Copyright © 2013 Elsevier B.V. All rights reserved.

  14. Determinants of Romanians' Migration within the European Union: Static and Dynamic Panel Gravity Approaches

    Directory of Open Access Journals (Sweden)

    Adriana Ana Maria Davidescu

    2017-08-01

    Full Text Available The 1st of January 2007 marked Romania’s accession to the European Union (EU and represented its 'ticket' to a free access to the common market. This soon evolved into an important trigger for the increased migration flows from Romania towards the more developed western countries, members of the EU. Not only the opportunity of a free movement of persons – emerged with the integration - but also the existing socio-economic disparities between Romania and the more developed western countries in the EU, led to unidirectional migration flows. Using both static and dynamic panel gravity models, we aim to identify the main determinants of Romanians' migration towards 10 EU member states – Czech Republic, Denmark, Italy, Netherlands, Finland, Germany, Norway, Poland, Spain, and Sweden – for the period 2007-2014. Our empirical findings support the results of other studies performed on different economies. The most important pull factor for Romanians' migration is represented by the economic conditions in the destination countries, proxied by the GDP/capita. Other important pull factors fuelling Romanians' migration refer to the unemployment rate, life expectancy, education spending, and population density. A key role is also played by the existing social networks in the destination countries which are proxied in our model by the lagged migration flows

  15. Spatiotemporal Dynamics and Spatial Determinants of Urban Growth in Suzhou, China

    Directory of Open Access Journals (Sweden)

    Ling Zhang

    2017-03-01

    Full Text Available This paper analyzes the spatiotemporal dynamics of urban growth and models its spatial determinants in China through a case study of Suzhou, a rapidly industrializing and globalizing city. We conducted spatial analysis on land use data derived from multi-temporal remote sensing images of Suzhou from 1986 to 2008. Three urban growth types, namely infilling, edge-expansion, and leapfrog, were identified. We used landscape metrics to quantify the temporal trend of urban growth in Suzhou. During these 22 years, Suzhou’s urbanization changed from bottom-up rural urbanization to city-based top-down urban expansion. The underlying mechanism changed from TVE (town village enterprise driven rural industrialization to FDI (foreign direct investment driven development zone fever. Furthermore, we employed both global and local logistic regressions to model the probability of urban land conversion against a set of spatial variables. The global logistic regression model found the significance of proximity, neighborhood conditions, and socioeconomic factors. The logistic geographically weighted regression (GWR model improved the global regression model with better model goodness-of-fit and higher prediction accuracy. More importantly, the local parameter estimates of variables enabled us to exam spatial variations of the influences of variables on urban growth in Suzhou.

  16. Determination of arterial input function in dynamic susceptibility contrast MRI using group independent component analysis technique

    International Nuclear Information System (INIS)

    Chen, S.; Liu, H.-L.; Yang Yihong; Hsu, Y.-Y.; Chuang, K.-S.

    2006-01-01

    Quantification of cerebral blood flow (CBF) with dynamic susceptibility contrast (DSC) magnetic resonance imaging (MRI) requires the determination of the arterial input function (AIF). The segmentation of surrounding tissue by manual selection is error-prone due to the partial volume artifacts. Independent component analysis (ICA) has the advantage in automatically decomposing the signals into interpretable components. Recently group ICA technique has been applied to fMRI study and showed reduced variance caused by motion artifact and noise. In this work, we investigated the feasibility and efficacy of the use of group ICA technique to extract the AIF. Both simulated and in vivo data were analyzed in this study. The simulation data of eight phantoms were generated using randomized lesion locations and time activity curves. The clinical data were obtained from spin-echo EPI MR scans performed in seven normal subjects. Group ICA technique was applied to analyze data through concatenating across seven subjects. The AIFs were calculated from the weighted average of the signals in the region selected by ICA. Preliminary results of this study showed that group ICA technique could not extract accurate AIF information from regions around the vessel. The mismatched location of vessels within the group reduced the benefits of group study

  17. Deliberative Democracy V. Politics of Identity

    Directory of Open Access Journals (Sweden)

    OSCAR PÉREZ DE LA FUENTE

    2013-12-01

    Full Text Available The defenders of deliberative democracy insist in the idea that for searching political truths is necessary to use values as universality, rationality and fairness. The defenders of the politics of identity distrust from this deliberative approach because, the interests of the powerful groups of the society are often behind those values. The common approach of deliberative democracy misunderstands the proper role, language, expression and actual interests of the members of the minorities. Deliberative democracy isn't really compromised with pluralism –social, cultural, ethnic, racial…– because it is more compromised with formal and substantial rules of decision that finally determine the result of the deliberation. Minorities claim for a new understanding of the democracy from the difference, from the identity. Thus, democracy is the result of a dialogue, not from abstractions, but from the particularity. In this sense, it is important the notion of ethics of alterity as a moral effort to understand the Other. This exercise excludes all kind of alterophobia (misogyny, xenophobia, racism, homophobia... and it is against relativist approach. An identity is legitimate in the way it includes the alterity. The minorities claim to think, other time, topics as democracy from the dynamics between identity/alterity, inclusion/exclusion, equal dignity/differentiated identity.

  18. Military-political Processes in the Caucasus Region and the Security of Russia

    Directory of Open Access Journals (Sweden)

    Anna V. Vilovatykh

    2015-01-01

    Full Text Available The unipolar world breaking and the tightening of geopolitical struggle led to destructive military-political processes in different regions of the world. In conditions of instability along the perimeter of Russia's borders the significance of the Caucasus region increases, especially in geo-strategic and geoeconomic perspectives. The efforts of world politics actors for the transformation of the region environment increase substantially. As a result the dynamics and the scope of the proceeding military-political processes in the Caucasus are complicated. The failures in the assessment and the prediction of the processes development influence on the safety of Russia. Wrong gradation of existing threats and challenges can lead to disastrous and irreversible consequences for state security. Designated circumstances caused the need for the expert survey on assessing the impact of the current military-political processes in the Caucasus region on the security of the Russian state and necessity for the concretization of military dangers and threats, due to political and military developments in the Caucasus. An expert survey was conducted in June 2014. During it authors interviewed 40 Russian and foreign experts representing Federal and regional authorities, academic community, research centers, analytical structures. Implementation of the survey allowed to identify the experts positions and the degree of their coherence on the military-political processes in the Caucasus region and their impact on the modern Russia security. As a result the degree of destructiveness of the regional military-political processes was fixed. We conclude that anti-Russian processes in the countries of the Caucasus continue to determine the overall geopolitical situation, including in the military-political sphere. The reason is mainly seen in interests clashing of Russia and countries of the "Atlantic world." Analysis of the military-political processes in the Caucasus

  19. Political rationality: Young Danish and Norwegian immigrant citizens and their political reasoning

    DEFF Research Database (Denmark)

    Solhaug, Trond; Kristensen, Niels Nørgaard

    2012-01-01

    combining identities, emotions, and information is suggested and examined empirically. In a qualitative study the reflectivity of the students and their willingness to act as rational and responsible citizens is evaluated. Based on a selection of young Danish and Norwegian immigrant students, the dynamics......This article aims to uncover the dynamics of political reasoning among young immigrants. How do they people reason about the larger social and political world around them and what rationalities are in play? A dynamic approach is used to analyze cognitive functioning. A model of political reasoning...... between the elements of the model are explored. In the analysis, some identities play a decisive role, while emotions seem fairly often to be the trigger and the mechanism of political action....

  20. Immanent Shakespearing: Politics, Performance, Pedagogy

    OpenAIRE

    Barnes, Todd Landon

    2010-01-01

    Unlike much of the secondary literature on Shakespeare, "Immanent Shakespeares: Politics, Performance, and Pedagogy" labors less to determine what Shakespearean texts might mean than to explore the cultural work these texts do while working in conjunction with contemporary institutions of learning and technologies of performance. Shakespeare studies too often takes the determination (or destabilization) of meaning as its telos, even when it's largely informed by performance criticism. This pr...

  1. Political Science and Political Geography: Neglected Areas, Areas for Development.

    Science.gov (United States)

    Laponce, J. A.

    1983-01-01

    Since at least the 1950s, political scientists have tended to ignore the possible contributions of political geography to political science because of a move away from considering spatial factors on political structure. Political scientists need to use more information from geography to enhance their understanding of political power and conflict.…

  2. International Contexts for Political Education.

    Science.gov (United States)

    Harber, Clive

    1991-01-01

    Uses international examples of the ways in which political learning takes place--indoctrination, political socialization, and political education--to suggest that open and democratic political education is not common, even in democracies. (SK)

  3. The Political Geography of Voters and Political Participation: Evidence from Local Election in Suburban Indonesia

    Directory of Open Access Journals (Sweden)

    Pitri Yandri

    2017-07-01

    Full Text Available The praxis of political issue including voter turnout and political participation does not exist in a vacuum. Therefore, geographical and spatial issues are frequently engaged and even embedded into it. Thus, this article is written with one purpose: to investigate the spatial relationship of voter turnout and their political participation. As stated earlier, the complexity of the political analysis based on geography will take us on a multidimensional approach that includes social, cultural and economy. However, this article starts the discussion from spatial analysis by using a map that illustrates the administrative boundaries of a region, then determining whether one region is adjacent to another. In this case, Moran’s I is used to determine the spatial autocorrelation of voter turnout and political participation. The result indicates that the voter turnout and political participation in one region are adjacent to each other. Possible reasons for the result are discussed in this article.

  4. Putting politics first.

    Science.gov (United States)

    Hacker, Jacob S

    2008-01-01

    The greatest lesson of the failure of comprehensive health reform in the early 1990s is that politics comes first. Even the best-laid policy plans are worthless if they lack the political support to pass. Putting politics first means avoiding the overarching mistake of the Clinton reformers: envisioning a grand policy compromise rather than hammering out a real political compromise. It also means addressing the inevitable fears of those who believe that they are well protected by our eroding employment-based system. And it means formulating political strategies that are premised on the contemporary realities of the hyperpolarized U.S. political environment, rather than wistfully recalled images of the bipartisan politics of old.

  5. Religion and Politics

    DEFF Research Database (Denmark)

    Bandak, Andreas

    2018-01-01

    Religion and politics provide an interesting juxtaposition. On the one hand, both may initially come across as rather self-evident categories, with religion dealing with human perceptions and what people hold as sacred, and politics addressing the control and governance of fellow human beings....... Nonetheless, such a simple opposition should only work as a starting point for an interrogation of both terms and how they have come to look and function as empirical and analytical categories. Focusing on the ways that religion is played out in relation to politics reveals different historical and cultural...... constellations and positions, which can be highlighted as variations of religion as politics, religion in politics, religion out of politics, and religion not politics....

  6. Political Budget Cycles

    DEFF Research Database (Denmark)

    Aaskoven, Lasse; Lassen, David Dreyer

    2017-01-01

    The political budget cycle—how elections affect government fiscal policy—is one of the most studied subjects in political economy and political science. The key theoretical question is whether incumbent governments can time or structure public finances in ways that improve their chances of reelec......The political budget cycle—how elections affect government fiscal policy—is one of the most studied subjects in political economy and political science. The key theoretical question is whether incumbent governments can time or structure public finances in ways that improve their chances...... on political budget cycles have recently focused on conditions under which such cycles are likely to obtain. Much recent research focuses on subnational settings, allowing comparisons of governments in similar institutional environments, and a consensus on the presences of cycles in public finances...

  7. The politics of researching global health politics

    Science.gov (United States)

    Rushton, Simon

    2015-01-01

    In this comment, I build on Shiffman’s call for the global health community to more deeply investigate structural and productive power. I highlight two challenges we must grapple with as social scientists carrying out the types of investigation that Shiffman proposes: the politics of challenging the powerful; and the need to investigate types of expertise that have traditionally been thought of as ‘outside’ global health. In doing so, I argue that moving forward with the agenda Shiffman sets out requires social scientists interested in the global politics of health to be reflexive about our own exercise of structural and productive power and the fact that researching global health politics is itself a political undertaking. PMID:25905482

  8. Redistributive Politics in a Political Union

    DEFF Research Database (Denmark)

    Citi, Manuele; Justesen, Mogens Kamp

    One of the main functions of centralized budgets in federal and political unions is to act as an equalizing mechanism to support economic cohesion. This is also the case with the European Union’s budget, which operates as a redistributive mechanism that counteracts the cross-national and cross...... remarkably over the last decades. In this paper, we investigate how and why the net fiscal position of each member state towards the rest of the EU changes over time. Using a novel panel dataset (1979-2014), we study how some key national and EU-level political and economic variables affect the EU...... find that the political orientation of national governments does not per se influence redistributive politics with in the EU. However, when the unemployment rate is rising, right-wing governments are able to extract significantly larger budgetary benefits....

  9. Determination of the Orientation and Dynamics of Ergosterol in Model Membranes Using Uniform 13C Labeling and Dynamically Averaged 13C Chemical Shift Anisotropies as Experimental Restraints

    Science.gov (United States)

    Soubias, O.; Jolibois, F.; Massou, S.; Milon, A.; Réat, V.

    2005-01-01

    A new strategy was established to determine the average orientation and dynamics of ergosterol in dimyristoylphosphatidylcholine model membranes. It is based on the analysis of chemical shift anisotropies (CSAs) averaged by the molecular dynamics. Static 13C CSA tensors were computed by quantum chemistry, using the gauge-including atomic-orbital approach within Hartree-Fock theory. Uniformly 13C-labeled ergosterol was purified from Pichia pastoris cells grown on labeled methanol. After reconstitution into dimyristoylphosphatidylcholine lipids, the complete 1H and 13C assignment of ergosterol's resonances was performed using a combination of magic-angle spinning two-dimensional experiments. Dynamically averaged CSAs were determined by standard side-band intensity analysis for isolated 13C resonances (C3 and ethylenic carbons) and by off-magic-angle spinning experiments for other carbons. A set of 18 constraints was thus obtained, from which the sterol's molecular order parameter and average orientation could be precisely defined. The validity of using computed CSAs in this strategy was verified on cholesterol model systems. This new method allowed us to quantify ergosterol's dynamics at three molar ratios: 16 mol % (Ld phase), 30 mol % (Lo phase), and 23 mol % (mixed phases). Contrary to cholesterol, ergosterol's molecular diffusion axis makes an important angle (14°) with the inertial axis of the rigid four-ring system. PMID:15923221

  10. RESEMBLANCE OF INDIRECTNESS IN POLITENESS OF EFL LEARNERS’ REQUEST REALIZATIONS

    Directory of Open Access Journals (Sweden)

    Indawan Syahri

    2013-07-01

    Full Text Available Abstract: Politeness principles are universally utilized by the speakers of any language when realizing various speech acts. However, the speakers of particular languages relatively apply politeness due to the cultural norms embedded. The present study attempts to delineate how the Indonesian learners of English (ILE apply the politeness principles in request realizations. Specifically it devotes to the types of politeness strategies applied and resemblance of the indirectness in politeness strategies in requesting acts. The FTAs and indirectness are the theoretical bases used to trace the typologies of both politeness and request strategies. The data werere collected by means of certain elicitation techniques, i.e. DCTs and Role-plays. The analyses werere done through three stages; determining request strategies, politeness strategies, and resemblance of indirectness in politeness. The results show that the indirectness generally is parallel to politeness. Besides, some pragmatic transfers are found in terms of applying native-culture norms in realizing target speech acts.

  11. Stability and crisis in social and political development

    Directory of Open Access Journals (Sweden)

    S. V. Stavchenko

    2015-03-01

    Determined that the balance and stability on the one hand, and the crisis loss of balance of power between the main actors, leading to instability of institutions, on the other hand, forming two potential «poles» that cause and «energy» of the political process, the vectors of its changes. This process affects the type of the country and its institutional organization. In general, the political crisis dysfunction manifested in political institutions, and is characterized by loss of legitimacy of institutional and substantive elements of the political system. Legitimacy can become leaders, political leaders, political leaders and even the basic law of the country (in the case of revolution, for example. The indicators serve as the political crisis of the political system parameters responsible for the restoration of the political system. Violations of system­parameters mean that in the looming crisis.

  12. Water droplet excess free energy determined by cluster mitosis using guided molecular dynamics

    Science.gov (United States)

    Lau, Gabriel V.; Hunt, Patricia A.; Müller, Erich A.; Jackson, George; Ford, Ian J.

    2015-12-01

    Atmospheric aerosols play a vital role in affecting climate by influencing the properties and lifetimes of clouds and precipitation. Understanding the underlying microscopic mechanisms involved in the nucleation of aerosol droplets from the vapour phase is therefore of great interest. One key thermodynamic quantity in nucleation is the excess free energy of cluster formation relative to that of the saturated vapour. In our current study, the excess free energy is extracted for clusters of pure water modelled with the TIP4P/2005 intermolecular potential using a method based on nonequilibrium molecular dynamics and the Jarzynski relation. The change in free energy associated with the "mitosis" or division of a cluster of N water molecules into two N/2 sub-clusters is evaluated. This methodology is an extension of the disassembly procedure used recently to calculate the excess free energy of argon clusters [H. Y. Tang and I. J. Ford, Phys. Rev. E 91, 023308 (2015)]. Our findings are compared to the corresponding excess free energies obtained from classical nucleation theory (CNT) as well as internally consistent classical theory (ICCT). The values of the excess free energy that we obtain with the mitosis method are consistent with CNT for large cluster sizes but for the smallest clusters, the results tend towards ICCT; for intermediate sized clusters, we obtain values between the ICCT and CNT predictions. Furthermore, the curvature-dependent surface tension which can be obtained by regarding the clusters as spherical droplets of bulk density is found to be a monotonically increasing function of cluster size for the studied range. The data are compared to other values reported in the literature, agreeing qualitatively with some but disagreeing with the values determined by Joswiak et al. [J. Phys. Chem. Lett. 4, 4267 (2013)] using a biased mitosis approach; an assessment of the differences is the main motivation for our current study.

  13. Water droplet excess free energy determined by cluster mitosis using guided molecular dynamics

    Energy Technology Data Exchange (ETDEWEB)

    Lau, Gabriel V.; Müller, Erich A.; Jackson, George [Department of Chemical Engineering, Imperial College London, South Kensington Campus, London SW7 2AZ (United Kingdom); Hunt, Patricia A. [Department of Chemistry, Imperial College London, South Kensington Campus, London SW7 2AZ (United Kingdom); Ford, Ian J. [Department of Physics and Astronomy and London Centre for Nanotechnology, University College London, Gower Street, London WC1E 6BT (United Kingdom)

    2015-12-28

    Atmospheric aerosols play a vital role in affecting climate by influencing the properties and lifetimes of clouds and precipitation. Understanding the underlying microscopic mechanisms involved in the nucleation of aerosol droplets from the vapour phase is therefore of great interest. One key thermodynamic quantity in nucleation is the excess free energy of cluster formation relative to that of the saturated vapour. In our current study, the excess free energy is extracted for clusters of pure water modelled with the TIP4P/2005 intermolecular potential using a method based on nonequilibrium molecular dynamics and the Jarzynski relation. The change in free energy associated with the “mitosis” or division of a cluster of N water molecules into two N/2 sub-clusters is evaluated. This methodology is an extension of the disassembly procedure used recently to calculate the excess free energy of argon clusters [H. Y. Tang and I. J. Ford, Phys. Rev. E 91, 023308 (2015)]. Our findings are compared to the corresponding excess free energies obtained from classical nucleation theory (CNT) as well as internally consistent classical theory (ICCT). The values of the excess free energy that we obtain with the mitosis method are consistent with CNT for large cluster sizes but for the smallest clusters, the results tend towards ICCT; for intermediate sized clusters, we obtain values between the ICCT and CNT predictions. Furthermore, the curvature-dependent surface tension which can be obtained by regarding the clusters as spherical droplets of bulk density is found to be a monotonically increasing function of cluster size for the studied range. The data are compared to other values reported in the literature, agreeing qualitatively with some but disagreeing with the values determined by Joswiak et al. [J. Phys. Chem. Lett. 4, 4267 (2013)] using a biased mitosis approach; an assessment of the differences is the main motivation for our current study.

  14. Determination of volatile organic hydrocarbons in water samples by solid-phase dynamic extraction.

    Science.gov (United States)

    Jochmann, Maik A; Yuan, Xue; Schmidt, Torsten C

    2007-03-01

    In the present study a headspace solid-phase dynamic extraction method coupled to gas chromatography-mass spectrometry (HS-SPDE-GC/MS) for the trace determination of volatile halogenated hydrocarbons and benzene from groundwater samples was developed and evaluated. As target compounds, benzene as well as 11 chlorinated and brominated hydrocarbons (vinyl chloride, dichloromethane, cis-1,2-dichloroethylene, trans-1,2-dichloroethylene, carbon tetrachloride, chloroform, trichloroethylene, tetrachloroethylene, bromoform) of environmental and toxicological concern were included in this study. The analytes were extracted using a SPDE needle device, coated with a poly(dimethylsiloxane) with 10% embedded activated carbon phase (50-microm film thickness and 56-mm film length) and were analyzed by GC/MS in full-scan mode. Parameters that affect the extraction yield such as extraction and desorption temperature, salting-out, extraction and desorption flow rate, extraction volume and desorption volume, the number of extraction cycles, and the pre-desorption time have been evaluated and optimized. The linearity of the HS-SPDE-GC/MS method was established over several orders of magnitude. Method detection limits (MDLs) for the compounds investigated ranged between 12 ng/L for cis-dichloroethylene and trans-dichloroethylene and 870 ng/L for vinyl chloride. The method was thoroughly validated, and the precision at two concentration levels (0.1 mg/L and a concentration 5 times above the MDL) was between 3.1 and 16% for the analytes investigated. SPDE provides high sensitivity, short sample preparation and extraction times and a high sample throughput because of full automation. Finally, the applicability to real environmental samples is shown exemplarily for various groundwater samples from a former waste-oil recycling facility. Groundwater from the site showed a complex contamination with chlorinated volatile organic compounds and aromatic hydrocarbons.

  15. Determination of volatile organic hydrocarbons in water samples by solid-phase dynamic extraction

    Energy Technology Data Exchange (ETDEWEB)

    Jochmann, Maik A.; Schmidt, Torsten C. [Eberhard-Karls-Universitaet Tuebingen, Center for Applied Geoscience (ZAG), Tuebingen (Germany); Chair of Instrumental Analysis, University Duisburg-Essen, Duisburg (Germany); Yuan, Xue [Eberhard-Karls-Universitaet Tuebingen, Center for Applied Geoscience (ZAG), Tuebingen (Germany)

    2007-03-15

    In the present study a headspace solid-phase dynamic extraction method coupled to gas chromatography-mass spectrometry (HS-SPDE-GC/MS) for the trace determination of volatile halogenated hydrocarbons and benzene from groundwater samples was developed and evaluated. As target compounds, benzene as well as 11 chlorinated and brominated hydrocarbons (vinyl chloride, dichloromethane, cis-1,2-dichloroethylene, trans-1,2-dichloroethylene, carbon tetrachloride, chloroform, trichloroethylene, tetrachloroethylene, bromoform) of environmental and toxicological concern were included in this study. The analytes were extracted using a SPDE needle device, coated with a poly(dimethylsiloxane) with 10% embedded activated carbon phase (50-{mu}m film thickness and 56-mm film length) and were analyzed by GC/MS in full-scan mode. Parameters that affect the extraction yield such as extraction and desorption temperature, salting-out, extraction and desorption flow rate, extraction volume and desorption volume, the number of extraction cycles, and the pre-desorption time have been evaluated and optimized. The linearity of the HS-SPDE-GC/MS method was established over several orders of magnitude. Method detection limits (MDLs) for the compounds investigated ranged between 12 ng/L for cis-dichloroethylene and trans-dichloroethylene and 870 ng/L for vinyl chloride. The method was thoroughly validated, and the precision at two concentration levels (0.1 mg/L and a concentration 5 times above the MDL) was between 3.1 and 16% for the analytes investigated. SPDE provides high sensitivity, short sample preparation and extraction times and a high sample throughput because of full automation. Finally, the applicability to real environmental samples is shown exemplarily for various groundwater samples from a former waste-oil recycling facility. Groundwater from the site showed a complex contamination with chlorinated volatile organic compounds and aromatic hydrocarbons. (orig.)

  16. Dynamics and molecular determinants of cytoplasmic lipid droplet clustering and dispersion.

    Directory of Open Access Journals (Sweden)

    David J Orlicky

    Full Text Available Perilipin-1 (Plin1, a prominent cytoplasmic lipid droplet (CLD binding phosphoprotein and key physiological regulator of triglyceride storage and lipolysis in adipocytes, is thought to regulate the fragmentation and dispersion of CLD that occurs in response to β-adrenergic activation of adenylate cyclase. Here we investigate the dynamics and molecular determinants of these processes using cell lines stably expressing recombinant forms of Plin1 and/or other members of the perilipin family. Plin1 and a C-terminal CLD-binding fragment of Plin1 (Plin1CT induced formation of single dense CLD clusters near the microtubule organizing center, whereas neither an N-terminal CLD-binding fragment of Plin1, nor Plin2 or Plin3 induced clustering. Clustered CLD coated by Plin1, or Plin1CT, dispersed in response to isoproterenol, or other agents that activate adenylate cyclase, in a process inhibited by the protein kinase A inhibitor, H89, and blocked by microtubule disruption. Isoproterenol-stimulated phosphorylation of CLD-associated Plin1 on serine 492 preceded their dispersion, and live cell imaging showed that cluster dispersion involved initial fragmentation of tight clusters into multiple smaller clusters, which then fragmented into well-dispersed individual CLD. siRNA knockdown of the cortical actin binding protein, moesin, induced disaggregation of tight clusters into multiple smaller clusters, and inhibited the reaggregation of dispersed CLD into tight clusters. Together these data suggest that the clustering and dispersion processes involve a complex orchestration of phosphorylation-dependent, microtubule-dependent and independent, and microfilament dependent steps.

  17. Dynamics and molecular determinants of cytoplasmic lipid droplet clustering and dispersion.

    Science.gov (United States)

    Orlicky, David J; Monks, Jenifer; Stefanski, Adrianne L; McManaman, James L

    2013-01-01

    Perilipin-1 (Plin1), a prominent cytoplasmic lipid droplet (CLD) binding phosphoprotein and key physiological regulator of triglyceride storage and lipolysis in adipocytes, is thought to regulate the fragmentation and dispersion of CLD that occurs in response to β-adrenergic activation of adenylate cyclase. Here we investigate the dynamics and molecular determinants of these processes using cell lines stably expressing recombinant forms of Plin1 and/or other members of the perilipin family. Plin1 and a C-terminal CLD-binding fragment of Plin1 (Plin1CT) induced formation of single dense CLD clusters near the microtubule organizing center, whereas neither an N-terminal CLD-binding fragment of Plin1, nor Plin2 or Plin3 induced clustering. Clustered CLD coated by Plin1, or Plin1CT, dispersed in response to isoproterenol, or other agents that activate adenylate cyclase, in a process inhibited by the protein kinase A inhibitor, H89, and blocked by microtubule disruption. Isoproterenol-stimulated phosphorylation of CLD-associated Plin1 on serine 492 preceded their dispersion, and live cell imaging showed that cluster dispersion involved initial fragmentation of tight clusters into multiple smaller clusters, which then fragmented into well-dispersed individual CLD. siRNA knockdown of the cortical actin binding protein, moesin, induced disaggregation of tight clusters into multiple smaller clusters, and inhibited the reaggregation of dispersed CLD into tight clusters. Together these data suggest that the clustering and dispersion processes involve a complex orchestration of phosphorylation-dependent, microtubule-dependent and independent, and microfilament dependent steps.

  18. Dynamic karyotype evolution and unique sex determination systems in Leptidea wood white butterflies.

    Science.gov (United States)

    Šíchová, Jindra; Voleníková, Anna; Dincă, Vlad; Nguyen, Petr; Vila, Roger; Sahara, Ken; Marec, František

    2015-05-19

    Chromosomal rearrangements have the potential to limit the rate and pattern of gene flow within and between species and thus play a direct role in promoting and maintaining speciation. Wood white butterflies of the genus Leptidea are excellent models to study the role of chromosome rearrangements in speciation because they show karyotype variability not only among but also within species. In this work, we investigated genome architecture of three cryptic Leptidea species (L. juvernica, L. sinapis and L. reali) by standard and molecular cytogenetic techniques in order to reveal causes of the karyotype variability. Chromosome numbers ranged from 2n = 85 to 91 in L. juvernica and 2n = 69 to 73 in L. sinapis (both from Czech populations) to 2n = 51 to 55 in L. reali (Spanish population). We observed significant differences in chromosome numbers and localization of cytogenetic markers (rDNA and H3 histone genes) within the offspring of individual females. Using FISH with the (TTAGG) n telomeric probe we also documented the presence of multiple chromosome fusions and/or fissions and other complex rearrangements. Thus, the intraspecific karyotype variability is likely due to irregular chromosome segregation of multivalent meiotic configurations. The analysis of female meiotic chromosomes by GISH and CGH revealed multiple sex chromosomes: W1W2W3Z1Z2Z3Z4 in L. juvernica, W1W2W3Z1Z2Z3 in L. sinapis and W1W2W3W4Z1Z2Z3Z4 in L. reali. Our results suggest a dynamic karyotype evolution and point to the role of chromosomal rearrangements in the speciation of Leptidea butterflies. Moreover, our study revealed a curious sex determination system with 3-4 W and 3-4 Z chromosomes, which is unique in the Lepidoptera and which could also have played a role in the speciation process of the three Leptidea species.

  19. How mechanical context and feedback jointly determine the use of mechanical variables in length perception by dynamic touch

    NARCIS (Netherlands)

    Menger, Rudmer; Withagen, Rob

    Earlier studies have revealed that both mechanical context and feedback determine what mechanical invariant is used to perceive length by dynamic touch. In the present article, the authors examined how these two factors jointly constrain the informational variable that is relied upon. Participants

  20. Comparison of renal dynamic imaging and modified MDRD equation in determining the stage of chronic kidney disease patients

    International Nuclear Information System (INIS)

    Xie Peng; Liu Xiaomei; Huang Jianmin; Zhang Fang; Pan Liping; Wu Weijie; Gao Jianqing

    2013-01-01

    Objective: To compare the accuracy of 99 Tc m -diethylene triamine pentaacetic acid ( 99 Tc m -DTPA) renal dynamic imaging and modified modification of diet in renal disease trail (MDRD) equation in determining the stage of the chronic kidney disease (CKD) patients in clinical practice. Methods: A total of 169 patients were enrolled whose glomerular filtration rate (GFR) were determined simultaneously by 3 methods: dual plasma sample clearance method, renal dynamic imaging and modified MDRD equation. The dual plasma sample clearance method was employed as the reference method. The accuracy of the other methods in determining the stage of CKD patients was compared and the comparison was repeated based on the different stages. Results: The accuracy of renal dynamic imaging and modified MDRD equation was 56.80% and 68.64%, respectively (P=0.019<0.05). And only in the stage of uremia, the difference of the above-mentioned two method reached statistical significance (P=0.012<0.05), while in other stages they showed similar performance (P=0.180, 0.424, 0.629 and 0.754, all P>0.05). Conclusion: Modified MDRD equation showed better performance than renal dynamic imaging or as good as the second one in determining the stage of CKD patients and the former one should be the first choice in clinical practice because of its simplicity and economy. (authors)

  1. How mechanical context and feedback jointly determine the use of mechanical variables in length perception by dynamic touch

    NARCIS (Netherlands)

    Menger, Rudmer; Withagen, Rob

    2009-01-01

    Earlier studies have revealed that both mechanical context and feedback determine what mechanical invariant is used to perceive length by dynamic touch. In the present article, the authors examined how these two factors jointly constrain the informational variable that is relied upon. Participants

  2. Determination of the crystal-melt interface kinetic coefficient from molecular dynamics simulations

    International Nuclear Information System (INIS)

    Monk, J; Mendelev, M I; Yang, Y; Asta, M; Hoyt, J J; Sun, D Y

    2010-01-01

    The generation and dissipation of latent heat at the moving solid–liquid boundary during non-equilibrium molecular dynamics (MD) simulations of crystallization can lead to significant underestimations of the interface mobility. In this work we examine the heat flow problem in detail for an embedded atom description of pure Ni and offer strategies to obtain an accurate value of the kinetic coefficient, μ. For free-solidification simulations in which the entire system is thermostated using a Nose–Hoover or velocity rescaling algorithm a non-uniform temperature profile is observed and a peak in the temperature is found at the interface position. It is shown that if the actual interface temperature, rather than the thermostat set point temperature, is used to compute the kinetic coefficient then μ is approximately a factor of 2 larger than previous estimates. In addition, we introduce a layered thermostat method in which several sub-regions, aligned normal to the crystallization direction, are indepently thermostated to a desired undercooling. We show that as the number of thermostats increases (i.e., as the width of each independently thermostated layer decreases) the kinetic coefficient converges to a value consistent with that obtained using a single thermostat and the calculated interface temperature. Also, the kinetic coefficient was determined from an analysis of the equilibrium fluctuations of the solid–liquid interface position. We demonstrate that the kinetic coefficient obtained from the relaxation times of the fluctuation spectrum is equivalent to the two values obtained from free-solidification simulations provided a simple correction is made for the contribution of heat flow controlled interface motion. Finally, a one-dimensional phase field model that captures the effect of thermostats has been developed. The mesoscale model reproduces qualitatively the results from MD simulations and thus allows for an a priori estimate of the accuracy of a

  3. Students Union, University Administration and Political Development ...

    African Journals Online (AJOL)

    Students Union, University Administration and Political Development of Nations. ... African Research Review ... resting on the reciprocal determinism of the social learning theory, that students union makes university administration smooth.

  4. historical memory from Victims of armed conflict Construction and reconstruction of the political subject

    Directory of Open Access Journals (Sweden)

    Juan David Villa Gómez

    2013-02-01

    Full Text Available In the title of this article poses a transition between the victim who has been affected by armed conflict or who has suffered a violation of their fundamental rights, compared to being a particular political subject. This is a complex issue that is handled by multiple edges, therefore it is important to reconceptualize the process. The title is intentional to the extent that it does not want to talk about the victim simply because if you look more deeply, which can be seen in the armed conflict in this country is that victimization was not simply collateral damage in the conflict that has affected civilians, has not been a process of horizontal violence where civilians were indiscriminately involved, as Abad Orozco (2005 tried to point to Colombia. It is a dynamic clear conflict, which in most cases has meant the intention and determination to destroy the political subject, both the acting political subject, who openly mobilized in the political opposition, as one who was possible future or suspected of being or becoming a political actor, active political subject, before even be, as Martín-Baró (1989 when analyzing the specific logic of the dirty war and psychological warfare in Latin America (cf. . Martín-Beristain & Riera, 1994

  5. Party-state relationship, an effect of the political competition. The party system and patronage in Romanian politics

    Directory of Open Access Journals (Sweden)

    Irina Lonean

    2012-06-01

    Full Text Available The article examines the party-state relationship in post-communist Romania. It shows the connections between the existence of patronage, corruption and the states’ weak administrative capacity, on one hand, and the dynamics of the political party system, as an explanatory variable, on the other hand. The instability of the political parties in Romania and their changing relations within the system make the electorates’ task of anticipating and sanctioning their politics impossible. Consequently, the political parties have the possibility of extracting resources from the state without being held accountable in elections, as an effect of their dynamic, but non-robust competition.

  6. School of Political Science

    Directory of Open Access Journals (Sweden)

    A. D. Voskresensky

    2014-01-01

    Full Text Available Out of all the departments of political sciences in Russia - the Department at MGIMO-University is probably the oldest one. In fact it is very young. While MGIMO-University is celebrating its 70th anniversary the Department of Political Sciences turns 15. Despite the fact that political analyst is a relatively new profession in Russia, it acquired a legal standing only in the 1990s, the political science school at MGIMO-University is almost as old as the university itself. Unlike many other universities, focused on the training teachers of political science or campaign managers MGIMO-University has developed its own unique political science school of "full cycle", where students grow into political sciences from a zero level up to the highest qualifications as teachers and researchers, and campaign managers, consultants and practitioners. The uniqueness of the school of political science at MGIMO-University allows its institutional incarnation -the Department of Political Science - to offer prospective studentsa training in a wide range of popular specialties and specializations, while ensuring a deep theoretical and practical basis of the training. Studying at MGIMO-University traditionally includes enhanced linguistic component (at least two foreign languages. For students of international relations and political science learning foreign languages is particularly important.It allows not only to communicate, but also to produce expertise and knowledge in foreign languages.

  7. Dynamics of floret initiation/death determining spike fertility in wheat as affected by Ppd genes under field conditions.

    Science.gov (United States)

    Prieto, Paula; Ochagavía, Helga; Savin, Roxana; Griffiths, Simon; Slafer, Gustavo A

    2018-04-27

    As wheat yield is linearly related to grain number, understanding the physiological determinants of the number of fertile florets based on floret development dynamics due to the role of the particular genes is relevant. The effects of photoperiod genes on dynamics of floret development are largely ignored. Field experiments were carried out to (i) characterize the dynamics of floret primordia initiation and degeneration and (ii) to determine which are the most critical traits of such dynamics in establishing genotypic differences in the number of fertile florets at anthesis in near isogenic lines (NILs) carrying photoperiod-insensitive alleles. Results varied in magnitude between the two growing seasons, but in general introgression of Ppd-1a alleles reduced the number of fertile florets. The actual effect was affected not only by the genome and the doses but also by the source of the alleles. Differences in the number of fertile florets were mainly explained by differences in the floret generation/degeneration dynamics, and in most cases associated with floret survival. Manipulating photoperiod insensitivity, unquestionably useful for changing flowering time, may reduce spike fertility but much less than proportionally to the change in duration of development, as the insensitivity alleles did increase the rate of floret development.

  8. The politics of health sector reform in developing countries: three cases of pharmaceutical policy.

    Science.gov (United States)

    Reich, M R

    1995-01-01

    This paper examines the political dynamics of health sector reform in poor countries, through a comparative study of pharmaceutical policy reform in Sri Lanka, Bangladesh, and the Philippines. The paper first reviews five reasons why policy reform is political. It then presents three political economic models of the policy reform process: the political will, political factions, and political survival models. Next, the paper describes the three cases of national pharmaceutical policy reform, and identifies common conditions that made these reforms politically feasible. The paper's analysis suggests that health sector reform is feasible at certain definable, and perhaps predictable, political moments, especially in the early periods of new regimes. The most important and manipulable political factors are: political timing, which provides opportunities for policy entrepreneurs to introduce their ideas into public debate, and political management of group competition, which allows leaders to control the political effects of distributional consequences and protect the regime's stability. A strong and narrow political coalition improves the capacity of political leaders to resist the pressures of concentrated economic costs (both inside and outside national boundaries). The paper argues that for reform to succeed, policy-makers need effective methods to analyze relevant political conditions and shape key political factors in favor of policy reform. The method of Political Mapping is briefly introduced as a technique that can help policy-makers in analyzing and managing the political dimensions of policy reform and in improving the political feasibility of reform.

  9. Fluid and structural dynamics calculations to determine core barrel loads during blowdown (EV 3,000)

    International Nuclear Information System (INIS)

    Krieg, R.; Schlechtendahl, E.G.

    1977-01-01

    To begin with, the main physical phenomena in connection with blowdown loads on the care barrel and the computer models used are briefly described. These models have also been used in the design of the HTR test care barrel. The fluid dynamics part of the calculations was carried out using the WHAMMOD and DAPSY codes; for the structural dynamics part, the STRUDL/Dynal code was employed. (orig./RW) [de

  10. Mitogen-activated protein kinase (MAPK) dynamics determine cell fate in the yeast mating response.

    Science.gov (United States)

    Li, Yang; Roberts, Julie; AkhavanAghdam, Zohreh; Hao, Nan

    2017-12-15

    In the yeast Saccharomyces cerevisiae , the exposure to mating pheromone activates a prototypic mitogen-activated protein kinase (MAPK) cascade and triggers a dose-dependent differentiation response. Whereas a high pheromone dose induces growth arrest and formation of a shmoo-like morphology in yeast cells, lower pheromone doses elicit elongated cell growth. Previous population-level analysis has revealed that the MAPK Fus3 plays an important role in mediating this differentiation switch. To further investigate how Fus3 controls the fate decision process at the single-cell level, we developed a specific translocation-based reporter for monitoring Fus3 activity in individual live cells. Using this reporter, we observed strikingly different dynamic patterns of Fus3 activation in single cells differentiated into distinct fates. Cells committed to growth arrest and shmoo formation exhibited sustained Fus3 activation. In contrast, most cells undergoing elongated growth showed either a delayed gradual increase or pulsatile dynamics of Fus3 activity. Furthermore, we found that chemically perturbing Fus3 dynamics with a specific inhibitor could effectively redirect the mating differentiation, confirming the causative role of Fus3 dynamics in driving cell fate decisions. MAPKs mediate proliferation and differentiation signals in mammals and are therapeutic targets in many cancers. Our results highlight the importance of MAPK dynamics in regulating single-cell responses and open up the possibility that MAPK signaling dynamics could be a pharmacological target in therapeutic interventions. © 2017 by The American Society for Biochemistry and Molecular Biology, Inc.

  11. Establishing Political Deliberation Systems

    DEFF Research Database (Denmark)

    Rose, Jeremy; Sæbø, Øystein

    2008-01-01

    The extension and transformation of political participation is dependent on widespread deliberation supported by information and communication technologies.  The most commonly found examples of these eParticipation systems are political discussion forums.  Though much of the discussion...... of these technologies is conducted in the eGovernment and (particularly) the eDemocracy literature, political discussion forums present a distinct set of design and management challenges which relate directly to IS concerns. In this article we analyze problems in establishing political deliberation systems under five...... headings: stakeholder engagement, web platform design, web platform management, political process re-shaping and evaluation and improvement. We review the existing literature and present a longitudinal case study of a political discussion forum: the Norwegian DemokratiTorget (Democracy Square).  We define...

  12. Comparing Political Journalism

    DEFF Research Database (Denmark)

    Comparing Political Journalism is a systematic, in-depth study of the factors that shape and influence political news coverage today. Using techniques drawn from the growing field of comparative political communication, an international group of contributors analyse political news content drawn...... Comparing Political Journalism offers an unparalleled scope in assessing the implications for the ongoing transformation of Western media systems, and addresses core concepts of central importance to students and scholars of political communication world-wide....... from newspapers, television news, and news websites from 16 countries, to assess what kinds of media systems are most conducive to producing quality journalism. Underpinned by key conceptual themes, such as the role that the media are expected to play in democracies and quality of coverage...

  13. Environmental factors that determine the occurrence and seasonal dynamics of Aphanizomenon flos-aquae

    Directory of Open Access Journals (Sweden)

    Yoshimasa YAMAMOTO

    2009-02-01

    Full Text Available This study investigated the seasonal dynamics of two populations of Aphanizomenon flos-aquae Ralfs ex Bornet & Flahault var. flos-aquae and four populations of A. flos-aquae var. klebahnii Elenkin in eutrophic water bodies over 1 year from February 2006 to January 2007. The growth of A. flos-aquae var. flos-aquae was promoted at high temperatures even if in one case the biomass development was very low when other co-occurring cyanoprokaryotes (Anabaena spp. and Microcystis spp. were abundant. In contrast, the highest density of the other population of A. flos-aquae var. flos-aquae was observed in August when the population density of M. aeruginosa (Kützing Kützing reached an annual peak. A. flos-aquae var. flos-aquae usually bloomed in summer but could also tolerate low temperatures in the winter, and was present in relatively high densities. The populations of A. flos-aquae var. klebahnii observed in this study can be divided into three groups based on preferred temperature; three populations increased in winter, and the other increased in summer. Large biomasses of the low-temperature-adapted A. flos-aquae were observed mainly during winter when population densities of co-occurring cyanoprokaryotes (Anabaena spp., Microcystis spp. and Planktothrix raciborskii (Woloszynska Anagnostidis & Komárek were relatively low or almost absent. The increase in or existence of cooccurring cyanoprokaryotes during the summer resulted in a decrease of the A. flos-aquae population density. It was revealed that high temperatures (20-25 °C are suitable for maintaining A. flos-aquae var. klebahnii strains isolated from the study ponds, implying that low-temperature-adapted A. flos-aquae can grow over a wide range of water temperatures. The high-temperatureadapted A. flos-aquae var. klebahnii co-existed with M. aeruginosa during summer; however, its peak population density was significantly lower than those in previous years when M. aeruginosa was absent

  14. Spatiotemporal Dynamics of Vibrio cholerae in Turbid Alkaline Lakes as Determined by Quantitative PCR.

    Science.gov (United States)

    Bliem, Rupert; Reischer, Georg; Linke, Rita; Farnleitner, Andreas; Kirschner, Alexander

    2018-06-01

    In recent years, global warming has led to a growing number of Vibrio cholerae infections in bathing water users in regions formerly unaffected by this pathogen. It is therefore of high importance to monitor V. cholerae in aquatic environments and to elucidate the main factors governing its prevalence and abundance. For this purpose, rapid and standardizable methods that can be performed by routine water laboratories are prerequisite. In this study, we applied a recently developed multiplex quantitative PCR (qPCR) strategy (i) to monitor the spatiotemporal variability of V. cholerae abundance in two small soda pools and a large lake that is intensively used for recreation and (ii) to elucidate the main factors driving V. cholerae dynamics in these environments. V. cholerae was detected with qPCR at high concentrations of up to 970,000 genomic units 100 ml -1 during the warm season, up to 2 orders of magnitude higher than values obtained by cultivation. An independent cytometric approach led to results comparable to qPCR data but with significantly more positive samples due to problems with DNA recovery for qPCR. Not a single sample was positive for toxigenic V. cholerae , indicating that only nontoxigenic V. cholerae (NTVC) was present. Temperature was the main predictor of NTVC abundance, but the quality and quantity of dissolved organic matter were also important environmental correlates. Based on this study, we recommend using the developed qPCR strategy for quantification of toxigenic and nontoxigenic V. cholerae in bathing waters with the need for improvements in DNA recovery. IMPORTANCE There is a definitive need for rapid and standardizable methods to quantify waterborne bacterial pathogens. Such methods have to be thoroughly tested for their applicability to environmental samples. In this study, we critically tested a recently developed multiplex qPCR strategy for its applicability to determine the spatiotemporal variability of V. cholerae abundance in

  15. Pseudo-extravasation rate constant of dynamic susceptibility contrast-MRI determined from pharmacokinetic first principles.

    Science.gov (United States)

    Li, Xin; Varallyay, Csanad G; Gahramanov, Seymur; Fu, Rongwei; Rooney, William D; Neuwelt, Edward A

    2017-11-01

    Dynamic susceptibility contrast-magnetic resonance imaging (DSC-MRI) is widely used to obtain informative perfusion imaging biomarkers, such as the relative cerebral blood volume (rCBV). The related post-processing software packages for DSC-MRI are available from major MRI instrument manufacturers and third-party vendors. One unique aspect of DSC-MRI with low-molecular-weight gadolinium (Gd)-based contrast reagent (CR) is that CR molecules leak into the interstitium space and therefore confound the DSC signal detected. Several approaches to correct this leakage effect have been proposed throughout the years. Amongst the most popular is the Boxerman-Schmainda-Weisskoff (BSW) K 2 leakage correction approach, in which the K 2 pseudo-first-order rate constant quantifies the leakage. In this work, we propose a new method for the BSW leakage correction approach. Based on the pharmacokinetic interpretation of the data, the commonly adopted R 2 * expression accounting for contributions from both intravascular and extravasating CR components is transformed using a method mathematically similar to Gjedde-Patlak linearization. Then, the leakage rate constant (K L ) can be determined as the slope of the linear portion of a plot of the transformed data. Using the DSC data of high-molecular-weight (~750 kDa), iron-based, intravascular Ferumoxytol (FeO), the pharmacokinetic interpretation of the new paradigm is empirically validated. The primary objective of this work is to empirically demonstrate that a linear portion often exists in the graph of the transformed data. This linear portion provides a clear definition of the Gd CR pseudo-leakage rate constant, which equals the slope derived from the linear segment. A secondary objective is to demonstrate that transformed points from the initial transient period during the CR wash-in often deviate from the linear trend of the linearized graph. The inclusion of these points will have a negative impact on the accuracy of the leakage

  16. Chaos theory in politics

    CERN Document Server

    Erçetin, Şefika; Tekin, Ali

    2014-01-01

    The present work investigates global politics and political implications of social science and management with the aid of the latest complexity and chaos theories. Until now, deterministic chaos and nonlinear analysis have not been a focal point in this area of research. This book remedies this deficiency by utilizing these methods in the analysis of the subject matter. The authors provide the reader a detailed analysis on politics and its associated applications with the help of chaos theory, in a single edited volume.

  17. The Politics of Dissent

    DEFF Research Database (Denmark)

    Bak Jørgensen, Martin; Agustin, Oscar Garcia

    2015-01-01

    In Politics of Dissent the framework for analysing politics of dissent is outlined. The outlined framework problematizes the conventional understandings of dissent as something characterising individual historical figures. The chapter provides both a theoretical underpinning of dissent as well...... as an approach to investigate the current contestations taking place on a global level. Politics of dissent entails the questioning of consensus. It conceptualises dissent as a collective process taking place on everyday level. It conceptualises moments of dissent. Finally it investigates the emergent...

  18. Democracy and the Struggle for Political Empowerment of Women in Nigeria

    OpenAIRE

    Nelson, E. E.

    2012-01-01

    This paper discusses women's participation in politics and governance in Nigeria, in order to unravel the dynamics and factors that limit their visibility in the political system. Women's participation in politics in Nigeria has remained a contentious issue, despite many decades of struggle to improve their lot politically. Following an analysis of the ways in which gender relations shapes the lives of Nigerian women, and an extensive review of the trajectories of women's political participat...

  19. HOBBES’ POLITICAL PHILOSOPHY

    Directory of Open Access Journals (Sweden)

    MHAI NOVAC

    2013-05-01

    Full Text Available This is basically an attempt at an original conceptual reconstruction of Hobbes’ philosophy as set in Lehiathan, namely one in the view of which Hobbes was neither an atheist nor an absolutist, as the standard interpretation holds, but rather what we could call an agnostical pragmatist (fact which, quite surprisingly, places Hobbes in the company of Burke. More to the point, my basic claim within this paper is that Hobbes was not such an ‘enemy of individual freedom’ as we traditionally hold him to be and that his thought was just as attached to the notion of individual freedom as the later contractualist views. The difference however, arises from the fact that Hobbes, unlike Locke, Rousseau or Kant, was what we could call a voluntaristic determinist and consequently viewed human freedom not so much as ‘unhindered action derived from reflective choice’, but rather as what we could call ‘reasonable fulfillment of the basic human inclinations’ (self-interest. As such, I will analyze the three main focal points of Hobbes’ thought, namely (i human nature, (ii the principle of association and (iii the principle of authority. More specifically I will try to offer a perspective on the link between his voluntaristic determinism, his notion of legitimate absolute coercion (sovereignity and his political theology (the view that any form of political authority rests on a religious legitimacy in trying to demonstrate how all these were Hobbes’ specific way of seeking to find individual freedom a place under the sun.

  20. The Political Economy of Extraterritoriality

    Directory of Open Access Journals (Sweden)

    Paul B. Stephan

    2013-06-01

    Full Text Available Near the end of the 2009 Term the Supreme Court decided Morrison v. Australia National Bank, Ltd., the strongest anti-extraterritoriality opinion it has produced in modern times. Not only is Congress presumed generally to prefer only territorial regulation, but lower courts that had carved out exceptions from this principle over a long period of time must now revisit their positions. Again this year in Kiobel v. Royal Dutch Shell Co. the Court relied on an aggressive use of the presumption against extraterritoriality to cut back on an important field of private litigation. The Court appears to have embraced two related stances: The imposition of barriers to extraterritorial regulation generally advances welfare, and the lower courts cannot be trusted to determine those instances where an exception to this rule might be justified. Implicit in the Court's position are intuitions about the political economy of both legislation and litigation. I want to use the occasion of the Morrison and Kiobel decisions to consider the political economy of extraterritorial regulation by the United States. International lawyers for the most part have analyzed state decisions to exercise prescriptive jurisdiction over extraterritorial transactions in terms of a welfare calculus that determines the likely costs and benefits to the state as a whole. Fewer studies have considered the political economy of the decision whether to regulate foreign transactions. No work of which I am aware has considered the political economy of deciding the extraterritorial question through litigation. This paper seeks to fill these gaps by sketching out what political economy suggests both about extraterritoriality and the role of courts as arbiters of extraterritoriality.

  1. Astronomy and Politics

    Science.gov (United States)

    Steele, John M.

    The relationship between astronomy and politics is a complex but important part of understanding the practice of astronomy throughout history. This chapter explores some of the ways that astronomy, astrology, and politics have interacted, placing particular focus on the way that astronomy and astrology have been used for political purposes by both people in power and people who wish to influence a ruler's policy. Also discussed are the effects that politics has had on the development of astronomy and, in particular, upon the recording and preservation of astronomical knowledge.

  2. Defining political community

    Directory of Open Access Journals (Sweden)

    Sladeček Michal M.

    2002-01-01

    Full Text Available This paper considers the concept of political community, its constitution and value. The starting point is that the concept of community is not sufficiently recognized in modern political theories, as well as in contemporary liberal theory. In the last two decades communitarian and republican political theory attempted to revitalize this notion. The first part of the paper elaborates on the polemics between these three theoretical orientations. The concluding part examines the possibilities and prospect for stable political community in conditions of pluralism of particular social communities and ethnocultural heterogeneity.

  3. Cosmopolitan political science.

    Science.gov (United States)

    Grande, Edgar

    2006-03-01

    Until recently, the term cosmopolitism could rarely be found in modern political science literature. It was only in the 1990s that the term was rediscovered by political scientists in the critical discourse on globalization. In this article, I will explore the full potential of cosmopolitism as an analytical concept for empirical political science. I will argue that the concept of cosmopolitism should not be restricted to the analysis of global politics. Indeed, cosmopolitism has much more to offer for political scientists. Properly understood, it enables--and necessitates--a re-invention of political science in the age of globalization, comparable to the behavioural revolution in political science in the 1950s. Such a paradigmatic shift should be based on a twofold transformation of existing disciplinary boundaries: A removal of the boundary between national (and comparative) and international politics on the one hand; and a re-definition of the boundaries between empirical and normative approaches on the other. As a result, cosmopolitism may serve as a new, critical theory of politics based on the integration of hitherto separated fields and sub-fields.

  4. Political Activities of Social Workers: Addressing Perceived Barriers to Political Participation

    Science.gov (United States)

    Rocha, Cynthia; Poe, Bethanie; Thomas, Veliska

    2010-01-01

    This article reviews the literature on political participation of social workers and the variables that promote or impede political advocacy. Early research in the 1980s and 1990s most often reported education, feelings of efficacy, having a macro-type job, and being a member of a national association as factors that determine greater political…

  5. Investigating On-Orbit Attitude Determination Anomalies for the Solar Dynamics Observatory Mission

    Science.gov (United States)

    Vess, Melissa F.; Starin, Scott R.; Chia-Kuo, Alice Liu

    2011-01-01

    The Solar Dynamics Observatory (SDO) was launched on February 11, 2010 from Kennedy Space Center on an Atlas V launch vehicle into a geosynchronous transfer orbit. SDO carries a suite of three scientific instruments, whose observations are intended to promote a more complete understanding of the Sun and its effects on the Earth's environment. After a successful launch, separation, and initial Sun acquisition, the launch and flight operations teams dove into a commissioning campaign that included, among other things, checkout and calibration of the fine attitude sensors and checkout of the Kalman filter (KF) and the spacecraft s inertial pointing and science control modes. In addition, initial calibration of the science instruments was also accomplished. During that process of KF and controller checkout, several interesting observations were noticed and investigated. The SDO fine attitude sensors consist of one Adcole Digital Sun Sensor (DSS), two Galileo Avionica (GA) quaternion-output Star Trackers (STs), and three Kearfott Two-Axis Rate Assemblies (hereafter called inertial reference units, or IRUs). Initial checkout of the fine attitude sensors indicated that all sensors appeared to be functioning properly. Initial calibration maneuvers were planned and executed to update scale factors, drift rate biases, and alignments of the IRUs. After updating the IRU parameters, the KF was initialized and quickly reached convergence. Over the next few hours, it became apparent that there was an oscillation in the sensor residuals and the KF estimation of the IRU bias. A concentrated investigation ensued to determine the cause of the oscillations, their effect on mission requirements, and how to mitigate them. The ensuing analysis determined that the oscillations seen were, in fact, due to an oscillation in the IRU biases. The low frequencies of the oscillations passed through the KF, were well within the controller bandwidth, and therefore the spacecraft was actually

  6. Does political instability lead to higher and more volatile inflation?: A panel data analysis

    Directory of Open Access Journals (Sweden)

    Aisen Ari

    2007-01-01

    Full Text Available Economists generally accept the proposition that high and volatile inflation rates generate inefficiencies that reduce society’s welfare. Furthermore studies have shown that inflation is harmful to economic growth. However determining the causes of the worldwide diversity of inflationary experiences is an important challenge not yet satisfactorily confronted by the profession. Based on a broad dataset covering over 100 countries for the period 1975-1997 and using dynamic and static panel data econometric techniques, this paper shows that a higher degree of political instability is associated with both higher inflation levels and volatility. Not only does this paper advance the political economy literature establishing a relationship between inflation moments and political instability, but it also has important policy implications regarding the optimal design of inflation stabilization programs and of the institutions favorable to price stability.

  7. DETERMINATION OF FRICTION PERFORMANCE INFLUENCE IN THE SYSTEM "BODY–BOGIE" ON THE FREIGHT CAR DYNAMICS

    Directory of Open Access Journals (Sweden)

    S. V. Myamlin

    2014-03-01

    Full Text Available Purpose. The main requirements for the design of a new generation of cars, according to the Program of rolling stock renovation, are the requirements reducing the operating costs and increasing the cost-effectiveness of their use, taking into account the achievements of scientific and technical thought. Due to the urgency of this subject the paper is devoted to the study of the friction coefficient influence in the bearing connection «center plate – center bowl – bearers»of freight cars on their main dynamic parameters – coefficients of horizontal and vertical dynamics, body acceleration, frame strength, derailment stability factor. Methodology. The study was conducted by numerical integration and mathematical modeling of the freight car dynamic loading using the software package «Dynamics of Rail Vehicles» («DYNRAIL». Findings. Investigations have shown that the safety movement parameters are influenced by both the friction parameters in bearing connection «center plate – center bowl – bearers» of freight cars in empty and loaded state with bogies TSNII-X3 (model 18-100. Effect have other components of freight car dynamics, namely: radii of curved track sections, height of outer rail, etc. Originality. The author investigated the friction influence on the car dynamic loading using new approaches to solving the problem of predicting the rolling stock dynamics. Prediction was carried out on the basis of significantly updated theoretical material that covers all history of the friction theory and includes the results of recent experimental studies because of the speed on the straights and curves of small-and medium-range sections of the road.Practical value. The obtained results have practical orientation. During the research and after modeling with the improved method of accounting of friction processes dependencies of main dynamic parameters of a four-freight gondola on the value of the friction coefficient in the "body

  8. Role of attractive forces in determining the equilibrium structure and dynamics of simple liquids

    DEFF Research Database (Denmark)

    Toxværd, Søren

    2015-01-01

    Molecular Dynamics simulations of a Lennard-Jones system with different range of attraction show that the attractive forces modify the radial distribution of the particles. For condensed liquids only, the forces within the the first coordination shell (FCS) are important, but for gases and moderate...... condensed fluids, even the attractive forces outside the FCS play a role. The changes in the distribution caused by neglecting the attractive forces, lead to a too high pressure. The weak long-range attractions damp the dynamics and the diffusion of the particles in gas-, super critical fluid- and in liquid...

  9. Obtaining Arbitrary Prescribed Mean Field Dynamics for Recurrently Coupled Networks of Type-I Spiking Neurons with Analytically Determined Weights.

    Science.gov (United States)

    Nicola, Wilten; Tripp, Bryan; Scott, Matthew

    2016-01-01

    A fundamental question in computational neuroscience is how to connect a network of spiking neurons to produce desired macroscopic or mean field dynamics. One possible approach is through the Neural Engineering Framework (NEF). The NEF approach requires quantities called decoders which are solved through an optimization problem requiring large matrix inversion. Here, we show how a decoder can be obtained analytically for type I and certain type II firing rates as a function of the heterogeneity of its associated neuron. These decoders generate approximants for functions that converge to the desired function in mean-squared error like 1/N, where N is the number of neurons in the network. We refer to these decoders as scale-invariant decoders due to their structure. These decoders generate weights for a network of neurons through the NEF formula for weights. These weights force the spiking network to have arbitrary and prescribed mean field dynamics. The weights generated with scale-invariant decoders all lie on low dimensional hypersurfaces asymptotically. We demonstrate the applicability of these scale-invariant decoders and weight surfaces by constructing networks of spiking theta neurons that replicate the dynamics of various well known dynamical systems such as the neural integrator, Van der Pol system and the Lorenz system. As these decoders are analytically determined and non-unique, the weights are also analytically determined and non-unique. We discuss the implications for measured weights of neuronal networks.

  10. Obtaining Arbitrary Prescribed Mean Field Dynamics for Recurrently Coupled Networks of Type-I Spiking Neurons with Analytically Determined Weights

    Directory of Open Access Journals (Sweden)

    Wilten eNicola

    2016-02-01

    Full Text Available A fundamental question in computational neuroscience is how to connect a network of spiking neurons to produce desired macroscopic or mean field dynamics. One possible approach is through the Neural Engineering Framework (NEF. The NEF approach requires quantities called decoders which are solved through an optimization problem requiring large matrix inversion. Here, we show how a decoder can be obtained analytically for type I and certain type II firing rates as a function of the heterogeneity of its associated neuron. These decoders generate approximants for functions that converge to the desired function in mean-squared error like 1/N, where N is the number of neurons in the network. We refer to these decoders as scale-invariant decoders due to their structure. These decoders generate weights for a network of neurons through the NEF formula for weights. These weights force the spiking network to have arbitrary and prescribed mean field dynamics. The weights generated with scale-invariant decoders all lie on low dimensional hypersurfaces asymptotically. We demonstrate the applicability of these scale-invariant decoders and weight surfaces by constructing networks of spiking theta neurons that replicate the dynamics of various well known dynamical systems such as the neural integrator, Van der Pol system and the Lorenz system. As these decoders are analytically determined and non-unique, the weights are also analytically determined and non-unique. We discuss the implications for measured weights of neuronal networks

  11. Usage of marketing in politics

    Directory of Open Access Journals (Sweden)

    Marić Ivana

    2014-01-01

    Full Text Available Multi-party political system led to competition between political parties which caused the need for marketing in politics that improves political reputation. Politics, based on rich experience of political practice, used existing, developed methods and techniques of commercial marketing. Political marketing openly admits that politics and politicians are simply goods that are being sold on a political market. Political marketing is a whole way of operation by political parties which ask these questions: how do the voters choose; what affects their preference and how that preference can be influenced. Usage of political marketing in Bosnia and Herzegovina is still not on a satisfactory level but the knowledge about the importance of political marketing is increasing.

  12. Determinants of Self-Employment Dynamics and their Implications on Entrepreneurial Policy Effectiveness

    Directory of Open Access Journals (Sweden)

    José María Millán

    2010-07-01

    Full Text Available This paper summarizes the main results of the empirical research on self-employment dynamics —particularly entry and success— and discusses their possible implications on entrepreneurial policy effectiveness. The main goal of this study is to promote a debate on this topic, encouraging conditional analyses that serve as guidance in the design of a policy agenda.

  13. A dynamic approach to the determinants of immigrants’ language proficiency : the United States, 1980-2000

    NARCIS (Netherlands)

    Tubergen, F.A. van; Kalmijn, M.

    2009-01-01

    This article proposes a dynamic perspective on immigrants’ language proficiency. Hypotheses are formulated about immigrants’ language skills at arrival and about the speed with which immigrants learn the language thereafter. It pools data from the 1980, 1990, and 2000 U.S. Censuses, and uses a

  14. Tool for a configurable integrated circuit that uses determination of dynamic power consumption

    Science.gov (United States)

    French, Matthew C. (Inventor); Wang, Li (Inventor); Agarwal, Deepak (Inventor); Davoodi, Azadeh (Inventor)

    2011-01-01

    A configurable logic tool that allows minimization of dynamic power within an FPGA design without changing user-entered specifications. The minimization of power may use minimized clock nets as a first order operation, and a second order operation that minimizes other factors, such as area of placement, area of clocks and/or slack.

  15. Centre for Political and

    African Journals Online (AJOL)

    user

    and definitions will be published and the data translated into the official ... The Centre provides a terminological and subject-related service to lecturers and ... postgraduate students in international politics, political studies and .... obtain financial contributions (cf. .... making of authoritative and enforceable rules (laws) for.

  16. Seizing Political Opportunity

    DEFF Research Database (Denmark)

    Citi, Manuele; Justesen, Mogens Kamp

    2016-01-01

    Political actors need to be nimble and respond to the opportunity to reform old policies and initiate new ones. The article looks at how the European Commission takes advantage of politically opportune moments (the ‘gridlock interval’) in the European Parliament to put forward new legislation...

  17. ICTs and Political Life.

    Science.gov (United States)

    Robbin, Alice; Courtright, Christina; Davis, Leah

    2004-01-01

    Presents a literature review that covers the following topics related to information and communications technologies (ICTs): (1) theories of ICTs and how they frame political life; (2) normative democratic theory and concepts; (3) e-political life; and (4) research on e-government, e-governance, and e-democracy; (Contains 276 references.) (MES)

  18. Principals' Perceptions of Politics

    Science.gov (United States)

    Tooms, Autumn K.; Kretovics, Mark A.; Smialek, Charles A.

    2007-01-01

    This study is an effort to examine principals' perceptions of workplace politics and its influence on their productivity and efficacy. A survey was used to explore the perceptions of current school administrators with regard to workplace politics. The instrument was disseminated to principals serving public schools in one Midwestern state in the…

  19. Political Communication with Animals

    NARCIS (Netherlands)

    Meijer, E.

    2013-01-01

    In this article I sketch the outlines of a theory of political human-animal conversations, based on ideas about language that I borrow from Ludwig Wittgenstein’s later work, in particular his notion of language-games. I present this theory as a supplement to the political theory of animal rights Sue

  20. The Politics of Encyclopaedias

    Science.gov (United States)

    Fozooni, Babak

    2012-01-01

    The paper assesses the political credibility of three encyclopaedias (Encyclopaedia Britannica, Encyclopedia of Marxism and Wikipedia) in relation to three chosen topics (Friedrich Engels's biography; the political philosophy of fascism; and, the discipline of social psychology). I was interested in discerning how entries are represented and…

  1. Comparative Political Communication Research

    NARCIS (Netherlands)

    de Vreese, C.H.; Kenski, K.; Jamieson, K.H.

    2017-01-01

    This chapter provides an overview of comparative political communication research (CPCR). CPCR is a growing field since there is wide acknowledgement that many questions are not answered satisfactorily with single case studies. The chapter explains why political communication researchers should care

  2. Dynamic determination of modulus of elasticity of full-size wood composite panels using a vibration method

    Science.gov (United States)

    Cheng Guan; Houjiang Zhang; Lujing Zhou; Xiping Wang

    2015-01-01

    A vibration testing method based on free vibration theory in a ‘‘free–free” support condition was investigated for evaluating the modulus of elasticity (MOE) of full-size wood composite panels (WCPs). Vibration experiments were conducted on three types of WCPs (medium density fibreboard, particleboard, and plywood) to determine the dynamic MOE of the panels. Static...

  3. Feedback between Population and Evolutionary Dynamics Determines the Fate of Social Microbial Populations

    Science.gov (United States)

    Sanchez, Alvaro; Gore, Jeff

    2013-01-01

    The evolutionary spread of cheater strategies can destabilize populations engaging in social cooperative behaviors, thus demonstrating that evolutionary changes can have profound implications for population dynamics. At the same time, the relative fitness of cooperative traits often depends upon population density, thus leading to the potential for bi-directional coupling between population density and the evolution of a cooperative trait. Despite the potential importance of these eco-evolutionary feedback loops in social species, they have not yet been demonstrated experimentally and their ecological implications are poorly understood. Here, we demonstrate the presence of a strong feedback loop between population dynamics and the evolutionary dynamics of a social microbial gene, SUC2, in laboratory yeast populations whose cooperative growth is mediated by the SUC2 gene. We directly visualize eco-evolutionary trajectories of hundreds of populations over 50–100 generations, allowing us to characterize the phase space describing the interplay of evolution and ecology in this system. Small populations collapse despite continual evolution towards increased cooperative allele frequencies; large populations with a sufficient number of cooperators “spiral” to a stable state of coexistence between cooperator and cheater strategies. The presence of cheaters does not significantly affect the equilibrium population density, but it does reduce the resilience of the population as well as its ability to adapt to a rapidly deteriorating environment. Our results demonstrate the potential ecological importance of coupling between evolutionary dynamics and the population dynamics of cooperatively growing organisms, particularly in microbes. Our study suggests that this interaction may need to be considered in order to explain intraspecific variability in cooperative behaviors, and also that this feedback between evolution and ecology can critically affect the demographic fate

  4. feedback between population and evolutionary dynamics determines the fate of social microbial populations.

    Directory of Open Access Journals (Sweden)

    Alvaro Sanchez

    Full Text Available The evolutionary spread of cheater strategies can destabilize populations engaging in social cooperative behaviors, thus demonstrating that evolutionary changes can have profound implications for population dynamics. At the same time, the relative fitness of cooperative traits often depends upon population density, thus leading to the potential for bi-directional coupling between population density and the evolution of a cooperative trait. Despite the potential importance of these eco-evolutionary feedback loops in social species, they have not yet been demonstrated experimentally and their ecological implications are poorly understood. Here, we demonstrate the presence of a strong feedback loop between population dynamics and the evolutionary dynamics of a social microbial gene, SUC2, in laboratory yeast populations whose cooperative growth is mediated by the SUC2 gene. We directly visualize eco-evolutionary trajectories of hundreds of populations over 50-100 generations, allowing us to characterize the phase space describing the interplay of evolution and ecology in this system. Small populations collapse despite continual evolution towards increased cooperative allele frequencies; large populations with a sufficient number of cooperators "spiral" to a stable state of coexistence between cooperator and cheater strategies. The presence of cheaters does not significantly affect the equilibrium population density, but it does reduce the resilience of the population as well as its ability to adapt to a rapidly deteriorating environment. Our results demonstrate the potential ecological importance of coupling between evolutionary dynamics and the population dynamics of cooperatively growing organisms, particularly in microbes. Our study suggests that this interaction may need to be considered in order to explain intraspecific variability in cooperative behaviors, and also that this feedback between evolution and ecology can critically affect the

  5. Political Animals: The Paradox of Ecofeminist Politics.

    Science.gov (United States)

    Sandilands, Catriona

    1994-01-01

    Analyzes the paradox between the careful work of rigorous political analysis and philosophy and a desire for mystery and the experience of awe and wildness that demands putting aside careful reasoning and the sensing of nature in an altogether different way. (LZ)

  6. Civic Political Culture, Participatory Governance and Political ...

    African Journals Online (AJOL)

    Prof

    This study x-rayed the significance of civic political culture on participatory governance and its .... The literature on participatory governance theory assumes that deliberation is key to effective .... factors and capture all considerations involved in making certain that citizen interests .... vital element in any organization.

  7. Socrates: Platonic Political Ideal

    Directory of Open Access Journals (Sweden)

    Christopher P. Long

    2012-08-01

    Full Text Available This essay articulates the differences and suggests the similarities between the practices of Socratic political speaking and those of Platonic political writing. The essay delineates Socratic speaking and Platonic writing as both erotically oriented toward ideals capable of transforming the lives of individuals and their relationships with one another. Besides it shows that in the Protagoras the practices of Socratic political speaking are concerned less with Protagoras than with the individual young man, Hippocrates. In the Phaedo, this ideal of a Socrates is amplified in such a way that Platonic writing itself emerges as capable of doing with readers what Socratic speaking did with those he encountered. Socrates is the Platonic political ideal. The result is a picture of the transformative political power of Socratic speaking and Platonic writing both.

  8. The Politics of Dependence

    DEFF Research Database (Denmark)

    Cockburn, Patrick Joseph

    The central claim of this book is that thinking about ‘dependence’ should be at the core of political theory principally because it helps us to think about issues of economic justice. Unlike political theories that either condemn or celebrate dependence, the book argues that dependence...... is an inescapable fact of social life, neither good nor bad in itself. The real political issues are about how we as a society organise and judge various forms of dependence. And this is, in fact, what much political debate is about if we dig beneath the surface. On the one hand, we disagree about how we should...... organise vulnerability; on the other hand, we disagree about who we should condemn as parasitical. Vulnerability and parasitism are thus key concepts for understanding political debate about forms of dependence. Showing the tension between these two sides to the problem of economic dependence...

  9. Stabilization, Extraversion and Political Settlements in Somalia

    DEFF Research Database (Denmark)

    Hagmann, Tobias

    -central Somalia. Existing analyses have focused predominantly on local actors and internal dynamics to account for the continuous political disorder in the former Somali Democratic Republic since 1991. In contrast, this study highlights the role of external aid in dysfunctional statebuilding efforts in Somalia...

  10. Political theology and eschatological war

    Directory of Open Access Journals (Sweden)

    Griško Miroslav

    2016-01-01

    Full Text Available The intent of this paper is to describe the antagonism that constitutes the eschatological position, i.e., the inseparability of eschatology from a concept of eschatological war, through 1 the political theology of Carl Schmitt, 2 Orthodox Christological anthropology and 3 the nomadology of Gilles Deleuze and Felix Guattari. Schmitt's political theology can be understood as a theory of eschatological war. The theological character of Schimtt's work entails that 'the secularisation of theological concepts' is constitutive of the eschatological concept of cosmological finitude. Moreover, Schmitt's distinction between friend and enemy, which informs his concept of politics as the 'political', aims to identify the primary antagonism of eschatological history. For Schmitt, the liberal end of history is the absolutisation of the enemy, as liberalism denies the fundamental distinction of the political, namely, liberalism maintains that war is over on the basis of its claim to immanent historical truth. From the position of Orthodox Christological anthropology, liberalism also contains a clear eschatological element. The anthropology of liberalism is consistent with the gnomic will, which, according to St. Maximus the Confessor, is the fallen definition of human freedom, i.e., freedom as choice. Freedom as the natural will, in contrast, determines the ethical mission of man as the soteriological deification of cosmos. The lines of eschatological war can be further illustrated through the work of Deleuze and Guattari as well as Heinz Von Foerster, whose concepts of diagram/ abstract machine and trivial/non-trivial machine may contribute to an understanding of how a concept of war informs the transformative cosmology which belongs to the eschatological logic of cosmic finitude and deification, theosis.

  11. The Place of Political Diversity within the Social Work Classroom

    Science.gov (United States)

    Rosenwald, Mitchell; Wiener, Diane R.; Smith-Osborne, Alexa; Smith, Christine M.

    2012-01-01

    This article examines political ideology and its implications as a newer diversity variable within social work education. Responding to internal assessments and external critiques of social work education, the dynamics of how diverse political ideologies might manifest in 5 core course concentrations--human behavior in the social environment,…

  12. Reciprocity-based experimental determination of dynamic forces and moments: A feasibility study

    Science.gov (United States)

    Ver, Istvan L.; Howe, Michael S.

    1994-01-01

    BBN Systems and Technologies has been tasked by the Georgia Tech Research Center to carry Task Assignment No. 7 for the NASA Langley Research Center to explore the feasibility of 'In-Situ Experimental Evaluation of the Source Strength of Complex Vibration Sources Utilizing Reciprocity.' The task was carried out under NASA Contract No. NAS1-19061. In flight it is not feasible to connect the vibration sources to their mounting points on the fuselage through force gauges to measure dynamic forces and moments directly. However, it is possible to measure the interior sound field or vibration response caused by these structureborne sound sources at many locations and invoke principle of reciprocity to predict the dynamic forces and moments. The work carried out in the framework of Task 7 was directed to explore the feasibility of reciprocity-based measurements of vibration forces and moments.

  13. Determination of fault operation dynamical constraints for the design of wind turbine DFIG drives

    CERN Document Server

    Aguglia, Davide; Wamkeue, René; Cros, Jérôme

    2010-01-01

    This paper presents an efficient design tool for the estimation of the transient electromagnetic peak torque and transient rotor over-voltages of wind turbines (WT) doubly-fed induction generators (DFIG) during severe fault conditions on the grid side. This versatile and robust tool is well adapted to the implementation in a DFIG drives CAD environment using iterative optimization procedures. In such an application, it is used to compute the dynamical constraints function during the integrated design process of the whole drive including the generator, the gearbox and the power converters. Results show that it is necessary to take into account the dynamical constraints under fault operation, during the early steps of the system design process. Another application of the tool is also illustrated in the paper: the design of the protection system (i.e. the crowbar resistance) for a given generator, a given gearbox and a given power converter.

  14. Dynamically Determining the Toll Plaza Capacity by Monitoring Approaching Traffic Conditions in Real-Time

    Directory of Open Access Journals (Sweden)

    Cheolsun Kim

    2016-03-01

    Full Text Available This study presents an analytical method for dynamically adjusting toll plaza capacity to cope with a sudden shift in demand. The proposed method uses a proxy measure developed using discharge rate observed at toll plazas and segment travel times measured by probe vehicles. The effectiveness of the method has been evaluated by analyzing the empirical data obtained from toll plazas in the San Francisco Bay Area before and after toll plaza capacity changed. Findings indicate that the estimated number of vehicles stored near the upstream of toll plaza based on discharge rate and their travel times can be used as a proxy measure for predicting the effect of changes in toll plaza capacity. The proposed model can aid government agencies to dynamically adjust the toll plaza capacity in response to a sudden shift in demand due to various situations of failure.

  15. Microbial phylogeny determines transcriptional response of resistome to dynamic composting processes

    OpenAIRE

    Wang, Cheng; Dong, Da; Strong, P. J.; Zhu, Weijing; Ma, Zhuang; Qin, Yong; Wu, Weixiang

    2017-01-01

    Background Animal manure is a reservoir of antibiotic resistance genes (ARGs) that pose a potential health risk globally, especially for resistance to the antibiotics commonly used in livestock production (such as tetracycline, sulfonamide, and fluoroquinolone). Currently, the effects of biological treatment (composting) on the transcriptional response of manure ARGs and their microbial hosts are not well characterized. Composting is a dynamic process that consists of four distinct phases tha...

  16. On determination of the dynamics of hydrocarbon molecules on catalyst's surfaces by means of neutron scattering

    International Nuclear Information System (INIS)

    Stockmeyer, R.

    1976-01-01

    The intensity distribution of slow neutrons scattered by adsorbed hydrocarbon molecules contains information on the dynamics of the molecules. In this paper the scattering law for incoherently scattering molecules is derived taking into account the very different mobility perpendicular and parallel to the surface. In contrast to the well known scattering law of threedimensionally diffusing particles the scattering law for twodimensional diffusion diverges logarithmically at zero energy transfer. Conclusions relevant to the interpretation of neutron scattering data are discussed. (orig.) [de

  17. Life history and spatial determinants of somatic growth dynamics in Komodo dragon populations

    OpenAIRE

    Laver, Rj; Purwandana, D; Ariefiandy, A; Imansyah, J; Forsyth, D; Ciofi, C; Jessop, Ts

    2012-01-01

    Somatic growth patterns represent a major component of organismal fitness and may vary among sexes and populations due to genetic and environmental processes leading to profound differences in life-history and demography. This study considered the ontogenic, sex-specific and spatial dynamics of somatic growth patterns in ten populations of the world's largest lizard the Komodo dragon (Varanus komodoensis). The growth of 400 individual Komodo dragons was measured in a capture-mark-recapture st...

  18. Determination of SMES capacity to enhance the dynamic stability of power system

    International Nuclear Information System (INIS)

    Shi, J.; Tang, Y.; Dai, T.; Ren, L.; Li, J.; Cheng, S.

    2010-01-01

    This paper proposes the principle of SMES capacity determination for power system stable operation. Adopting the energy function method, the mechanism of SMES damping power oscillation in the classical single-machine infinite-bus (SMIB) system is analyzed. The released kinetic energy during disturbance is the original of power system oscillation, which is taken as the principle of SMES capacity determination. Then, the influence of fault type, fault position, and fault clearing time on the SMES capacity determination are discussed. Using MATLAB simulation, the principle of SMES capacity determination is evaluated.

  19. Approaches to determining the reliability of a multimodal three-dimensional dynamic signature

    Directory of Open Access Journals (Sweden)

    Yury E. Kozlov

    2018-03-01

    Full Text Available The market of modern mobile applications has increasingly strict requirements for the authentication system reliability. This article examines an authentication method using a multimodal three-dimensional dynamic signature (MTDS, that can be used both as a main and additional method of user authentication in mobile applications. It is based on the use of gesture in the air performed by two independent mobile devices as an identifier. The MTDS method has certain advantages over currently used biometric methods, including fingerprint authentication, face recognition and voice recognition. A multimodal three-dimensional dynamic signature allows quickly changing an authentication gesture, as well as concealing the authentication procedure using gestures that do not attract attention. Despite all its advantages, the MTDS method has certain limitations, the main one is building functionally dynamic complex (FDC skills required for accurate repeating an authentication gesture. To correctly create MTDS need to have a system for assessing the reliability of gestures. Approaches to the solution of this task are grouped in this article according to methods of their implementation. Two of the approaches can be implemented only with the use of a server as a centralized MTDS processing center and one approach can be implemented using smartphone's own computing resources. The final part of the article provides data of testing one of these methods on a template performing the MTDS authentication.

  20. Dynamics Determine Signaling in a Multicomponent System Associated with Rheumatoid Arthritis.

    Science.gov (United States)

    Lindgren, Cecilia; Tyagi, Mohit; Viljanen, Johan; Toms, Johannes; Ge, Changrong; Zhang, Naru; Holmdahl, Rikard; Kihlberg, Jan; Linusson, Anna

    2018-05-24

    Strategies that target multiple components are usually required for treatment of diseases originating from complex biological systems. The multicomponent system consisting of the DR4 major histocompatibility complex type II molecule, the glycopeptide CII259-273 from type II collagen, and a T-cell receptor is associated with development of rheumatoid arthritis (RA). We introduced non-native amino acids and amide bond isosteres into CII259-273 and investigated the effect on binding to DR4 and the subsequent T-cell response. Molecular dynamics simulations revealed that complexes between DR4 and derivatives of CII259-273 were highly dynamic. Signaling in the overall multicomponent system was found to depend on formation of an appropriate number of dynamic intramolecular hydrogen bonds between DR4 and CII259-273, together with the positioning of the galactose moiety of CII259-273 in the DR4 binding groove. Interestingly, the system tolerated modifications at several positions in CII259-273, indicating opportunities to use analogues to increase our understanding of how rheumatoid arthritis develops and for evaluation as vaccines to treat RA.

  1. The Prediction of Political Competencies by Political Action and Political Media Consumption

    Science.gov (United States)

    Reichert, Frank

    2014-01-01

    Political competencies are often considered a precondition for political action; however, they are not independent of previous political participation, which may also include the frequency and the kind of political media consumption. My research aims at finding out the importance of participation in political activities in the past, as well as…

  2. Student life - Making politics matter.

    Science.gov (United States)

    McCullough, Siobhan

    2014-12-02

    'What has politics got to do with nursing?' This is a question I hear often as a lecturer in nursing with a specialist interest in politics, as is the comment: 'I did not come into nursing to learn about politics.'

  3. POLITICAL ISLAM IN THE 21ST CENTURY

    Directory of Open Access Journals (Sweden)

    Ferran Izquierdo Brichs

    2011-04-01

    Full Text Available Since the 1980s, political Islam or Islamism has created enormous concern both in the political media and the news media. The revolution in Iran in the late 1970s and the election victory by FIS in Algeria in the late 1980s represented two decisive points in the popular and ideological mobilisation by Islamist groups. Immediately after that, the civil war in Algeria and terrorist violence left their mark on the 1990s. The perception of Islamism today is still associated, in many cases, with the dynamics of the end of the past century, and with the jihadism of a few fundamentalist groups, without taking into account the fact that the majority of Islamist groups have undergone an enormous evolution, and that the context in which they are operating is also very different. As we will see, instead of the jihadism or the ideological radicalness of the past century, today’s political Islam is much better represented by the moderation (both ideological and in terms of political activity of Turkey’s AKP party, the Muslim Brotherhood in Egypt, Morocco’s PJD, Tunisia’s al-Nahdah and most of the parties and large groups. Central factors in this dynamic of moderation are, on one hand, the link between Islamist groups with regimes and, on the other, the claims for and acceptance of liberal democracy as a strategy in their political struggle.

  4. Gandhi, politics and Sat Yagraha

    Directory of Open Access Journals (Sweden)

    Mario López Martínez

    2012-01-01

    Full Text Available Mohandas K. Gandhi was the father of modern nonviolence. He called the forms of struggle without use of firearms as satyagraha. Gandhi distinguished between passive resistance and satyagraha. The basic postulate of satyagraha rested on the belief in the inherent goodness of man, moral power and the capacity to suffer for the opponent. He tried, in difficult times, offering an alternative to war and social policy. On the roots of forms of struggle and popular peasant ancestral (disobedience, non-cooperation, insubordination, he developed the ethical and political union, beyond N. Machiavelli and M. Weber. But his ethical-political struggle could not be understood without other elements of his “constructive program” such as ahimsa (not kill, Sarvodaya (welfare of all, swaraj (self-determination and self-government and swadeshi (self-sufficiency.

  5. Political behavior in organizational context: nature, research and paradigm

    Directory of Open Access Journals (Sweden)

    Hasan Jafariani

    2012-09-01

    Full Text Available This paper investigates political behavior in organization context. In the first section, it studies inappropriate terminology in political behavior arena and recommends that political behaviors are neither positive nor negative in nature. The study also demonstrates that ends and means for influencing others are two criteria for determining faces of political behavior. In the second section, related and important research are reviewed and categorized in terms of content. Finally, we present the dominant paradigm of political behavior as a philosophical infrastructure. The study also presents some guidelines for further research the limitations are discussed in conclusion part.

  6. Determination of Fatty Acid Metabolism with Dynamic [11C]Palmitate Positron Emission Tomography of Mouse Heart In Vivo

    Directory of Open Access Journals (Sweden)

    Yinlin Li

    2015-09-01

    Full Text Available The goal of this study was to establish a quantitative method for measuring fatty acid (FA metabolism with partial volume (PV and spill-over (SP corrections using dynamic [11C]palmitate positron emission tomographic (PET images of mouse heart in vivo. Twenty-minute dynamic [11C]palmitate PET scans of four 18- to 20-week-old male C57BL/6 mice under isoflurane anesthesia were performed using a Focus F-120 PET scanner. A model-corrected blood input function, by which the input function with SP and PV corrections and the metabolic rate constants (k1–k5 are simultaneously estimated from the dynamic [11C]palmitate PET images of mouse hearts in a four-compartment tracer kinetic model, was used to determine rates of myocardial fatty acid oxidation (MFAO, myocardial FA esterification, myocardial FA use, and myocardial FA uptake. The MFAO thus measured in C57BL/6 mice was 375.03 ± 43.83 nmol/min/g. This compares well to the MFAO measured in perfused working C57BL/6 mouse hearts ex vivo of about 350 nmol/g/min and 400 nmol/min/g. FA metabolism was measured for the first time in mouse heart in vivo using dynamic [11C]palmitate PET in a four-compartment tracer kinetic model. MFAO obtained with this model was validated by results previously obtained with mouse hearts ex vivo.

  7. A miniaturized, high frequency mechanical scanner for high speed atomic force microscope using suspension on dynamically determined points

    Energy Technology Data Exchange (ETDEWEB)

    Herfst, Rodolf; Dekker, Bert; Witvoet, Gert; Crowcombe, Will; Lange, Dorus de [Department of Optomechatronics, Netherlands Organization for Applied Scientific Research, TNO, Delft (Netherlands); Sadeghian, Hamed, E-mail: hamed.sadeghianmarnani@tno.nl, E-mail: h.sadeghianmarnani@tudelft.nl [Department of Optomechatronics, Netherlands Organization for Applied Scientific Research, TNO, Delft (Netherlands); Department of Precision and Microsystems Engineering, Delft University of Technology, Delft (Netherlands)

    2015-11-15

    One of the major limitations in the speed of the atomic force microscope (AFM) is the bandwidth of the mechanical scanning stage, especially in the vertical (z) direction. According to the design principles of “light and stiff” and “static determinacy,” the bandwidth of the mechanical scanner is limited by the first eigenfrequency of the AFM head in case of tip scanning and by the sample stage in terms of sample scanning. Due to stringent requirements of the system, simply pushing the first eigenfrequency to an ever higher value has reached its limitation. We have developed a miniaturized, high speed AFM scanner in which the dynamics of the z-scanning stage are made insensitive to its surrounding dynamics via suspension of it on specific dynamically determined points. This resulted in a mechanical bandwidth as high as that of the z-actuator (50 kHz) while remaining insensitive to the dynamics of its base and surroundings. The scanner allows a practical z scan range of 2.1 μm. We have demonstrated the applicability of the scanner to the high speed scanning of nanostructures.

  8. The Specific of Political Fundraising

    Directory of Open Access Journals (Sweden)

    Евгений Викторович Смолянинов

    2010-06-01

    Full Text Available The following study is dedicated to the process of political fundraising as a subject of political science. Through the article one can find the definition of political fundraising and American political scientists' approaches to the analysis of this process. Comparative analysis of political fundraising in the U.S.A. and Russian Federation demonstrates that its' transparency has an important impact on public's control of lobby groups and other shadow political entities.

  9. Polite Interactions with Robots

    DEFF Research Database (Denmark)

    Benotti, Luciana; Blackburn, Patrick Rowan

    2016-01-01

    We sketch an inference architecture that permits linguistic aspects of politeness to be interpreted; we do so by applying the ideas of politeness theory to the SCARE corpus of task-oriented dialogues, a type of dialogue of particular relevance to robotics. The fragment of the SCARE corpus we...... analyzed contains 77 uses of politeness strategies: our inference architecture covers 58 of them using classical AI planning techniques; the remainder require other forms of means-ends inference. So by the end of the paper we will have discussed in some detail how to interpret automatically different forms...

  10. A Political Innovator?

    DEFF Research Database (Denmark)

    Tang, Yi; Lin, Yu; Andersen, Torben Juul

    2016-01-01

    ) of the CEO. Based on a sample of 381 manufacturing firms extracted from the Entrepreneurs Survey System of Chinese CEOs with 2014 data from the Jiangsu province, the study finds that political networking is positively related to explorative and exploitative innovation but negatively moderated by the CSE......Political networking is frequently used in transition economies to gain superior performance. This study draws on upper echelons theory (UET) and the resource-based view (RBV) to analyze the relationship between political networking and firm innovation moderated by the core self-evaluation (CSE...... of the CEOs....

  11. Hospitality, Tourism, and Politics

    Directory of Open Access Journals (Sweden)

    Stephen W. Litvin

    2012-09-01

    Full Text Available Government policy has a significant impact on the hospitality and tourism industry, but it is unclear if political leaders fully understand this economic sector when crafting policies. This article offers new research about the direct involvement of industry practitioners in the political process, by analyzing the backgrounds of legislators in the six New England states. The data indicate that only 3% of these legislators have current or former careers related to hospitality and tourism. The author suggests that practitioners should seek election to political office, to better influence government policy.

  12. Christianity and Political Thought

    DEFF Research Database (Denmark)

    Thomassen, Bjørn; Forlenza, Rosario

    2016-01-01

    This article engages with the thought of Augusto Del Noce (1910-1989), the most important Italian Catholic philosopher and political thinker of the twentieth century. The focus is on how Del Noce came to elaborate a Catholic ‘modernity,’ bridging a positive encounter between Catholicism, democracy......, and freedom. This philosophical project had a considerable impact on modern Italian culture and politics. At the theoretical level, the argument is embedded within a larger aim to recognize attempts within Catholic philosophy to articulate an Italian political trajectory that does not simply accept the tale...

  13. Multimodality, politics and ideology

    DEFF Research Database (Denmark)

    Machin, David; Van Leeuwen, T.

    2016-01-01

    This journal's editorial statement is clear that political discourse should be studied not only as regards parliamentary type politics. In this introduction we argue precisely for the need to pay increasing attention to the way that political ideologies are infused into culture more widely...... of power, requires meanings and identities which can hold them in place. We explain the processes by which critical multimodal discourse analysis can best draw out this ideology as it is realized through different semiotics resources. © John Benjamins Publishing Company....

  14. Dynamics

    CERN Document Server

    Goodman, Lawrence E

    2001-01-01

    Beginning text presents complete theoretical treatment of mechanical model systems and deals with technological applications. Topics include introduction to calculus of vectors, particle motion, dynamics of particle systems and plane rigid bodies, technical applications in plane motions, theory of mechanical vibrations, and more. Exercises and answers appear in each chapter.

  15. Political Left and Right: Our Hands-On Logic

    OpenAIRE

    Frits Bienfait; Walter E. A. van Beek

    2014-01-01

    The origins and immediate vitality of the left/right divide which emerged in French revolutionary politics from 1789 can only be understood against the background of a much older classification dynamic based on the primacy of the right hand, first described by Robert Hertz in 1909. This dynamic infused political thinking first in Versailles and since 1815 in democracies throughout the world. In the process, the classical left/right polarity acquired a new dimension: the complementary notions ...

  16. Politics out of the History of Politics

    Directory of Open Access Journals (Sweden)

    Diana Sartori

    2012-11-01

    Full Text Available Wendy Brown’s approach in Politics out of History is characterized by an attempt to analyze the presence of the past which can be read not only under the light of Nietzsche’s legacy, but also through a comparison with Hannah Arendt’s conception of the gap between the past and the future. Like Arendt, Brown aims to look at the present as the site of politics and freedom, even though the former conceives the break with tradition as the unavoidable starting point, while the latter assumes that that break is not fully accomplished because it was not recognized. Rather, it produces Wounded Attachments whose effect is that of limiting the possibility of left criticism. Moving from this parallel, Brown’s analysis is compared to the Italian philosophy of sexual difference, stressing their common interest in thinking freedom beyond a female identity built on a presumed common oppression.

  17. What's Politics Got to Do with It? "Power" as a "Threshold" Concept for Undergraduate Business Students

    Science.gov (United States)

    Williams, Paul D.

    2014-01-01

    Politics courses embedded in business and commerce degree programs have soared in number in recent years. Yet how business students, often compulsorily enrolled in politics courses, learn key politics concepts is an under-researched area. The purpose of this article is to determine where the teaching and learning of political science and business…

  18. The effects of social media on political party perception and voting behavior

    NARCIS (Netherlands)

    Riezebos, Peter; de Vries, Sjoerd A.; de Vries, Pieter Walter; de Zeeuw, Erik

    2011-01-01

    This study sought to determine to what extent social media influences political party perception (PPP) and political voting behavior. Based on literature a conceptual model was developed which measures political interest, political trust, religion and the use of social media and their effects on PPP

  19. Possible dynamical determination of m$_{t}$, m$_{b}$ and m$_{\\tau}$

    CERN Document Server

    Kounnas, Costas; Ridolfi, G; Zwirner, Fabio; Kounnas, Costas; Pavel, Ilarion; Ridolfi, Giovanni; Zwirner, Fabio

    1995-01-01

    Motivated by four-dimensional superstring models, we consider the possibility of treating the Yukawa couplings of the Minimal Supersymmetric Standard Model (MSSM) as dynamical variables of the effective theory at the electroweak scale. Assuming bottom-tau unification, we concentrate on the top and bottom Yukawa couplings, and find that minimizing the effective potential drives them close to an effective infrared fixed line. Requiring an acceptable bottom-top mass ratio leads in principle to an additional constraint on the MSSM parameter space. As a by-product, we give new approximate analytical solutions of the renormalization group equations for the MSSM parameters.

  20. Condition of damping of anomalous radial transport, determined by ordered convective electron dynamics

    International Nuclear Information System (INIS)

    Maslov, V.I.; Barchuk, S.V.; Lapshin, V.I.; Volkov, E.D.; Melentsov, Yu.V.

    2006-01-01

    It is shown, that at development of instability due to a radial gradient of density in the crossed electric and magnetic fields in nuclear fusion installations ordering convective cells can be excited. It provides anomalous particle transport. The spatial structures of these convective cells have been constructed. The radial dimensions of these convective cells depend on their amplitudes and on a radial gradient of density. The convective-diffusion equation for radial dynamics of the electrons has been derived. At the certain value of the universal controlling parameter, the convective cell excitation and the anomalous radial transport are suppressed. (author)

  1. The determination of temperature stability of silver nanotubes by the molecular dynamics simulation

    Science.gov (United States)

    Filatov, O.; Soldatenko, S.; Soldatenko, O.

    2018-04-01

    Molecular dynamics simulation using the embedded-atom method is applied to study thermal stability of silver nanotubes and its coefficient of linear thermal expansion. The correspondence of face centered cubic structure potential for this task is tested. Three types of nanotubes are modelled: scrolled from graphene-like plane, scrolled from plane with cubic structure and cut from cylinder. It is established that only the last two of them are stable. The last one describes in details. There is critical temperature when free ends of the nanotube close but the interior surface retains. At higher temperatures, the interior surface collapses and the nanotube is unstable.

  2. Comparison of two methods to determine fan performance curves using computational fluid dynamics

    Science.gov (United States)

    Onma, Patinya; Chantrasmi, Tonkid

    2018-01-01

    This work investigates a systematic numerical approach that employs Computational Fluid Dynamics (CFD) to obtain performance curves of a backward-curved centrifugal fan. Generating the performance curves requires a number of three-dimensional simulations with varying system loads at a fixed rotational speed. Two methods were used and their results compared to experimental data. The first method incrementally changes the mass flow late through the inlet boundary condition while the second method utilizes a series of meshes representing the physical damper blade at various angles. The generated performance curves from both methods are compared with an experiment setup in accordance with the AMCA fan performance testing standard.

  3. NEXT GENERATION OF TELESCOPES OR DYNAMICS REQUIRED TO DETERMINE IF EXO-MOONS HAVE PROGRADE OR RETROGRADE ORBITS

    International Nuclear Information System (INIS)

    Lewis, Karen M.; Fujii, Yuka

    2014-01-01

    We survey the methods proposed in the literature for detecting moons of extrasolar planets in terms of their ability to distinguish between prograde and retrograde moon orbits, an important tracer of the moon formation channel. We find that most moon detection methods, in particular, sensitive methods for detecting moons of transiting planets, cannot observationally distinguishing prograde and retrograde moon orbits. The prograde and retrograde cases can only be distinguished where the dynamical evolution of the orbit due to, e.g., three body effects is detectable, where one of the two cases is dynamically unstable, or where new observational facilities, which can implement a technique capable of differentiating the two cases, come online. In particular, directly imaged planets are promising targets because repeated spectral and photometric measurements, which are required to determine moon orbit direction, could also be conducted with the primary interest of characterizing the planet itself

  4. Fluid consumption and taste novelty determines transcription temporal dynamics in the gustatory cortex.

    Science.gov (United States)

    Inberg, Sharon; Jacob, Eyal; Elkobi, Alina; Edry, Efrat; Rappaport, Akiva; Simpson, T Ian; Armstrong, J Douglas; Shomron, Noam; Pasmanik-Chor, Metsada; Rosenblum, Kobi

    2016-02-09

    Novel taste memories, critical for animal survival, are consolidated to form long term memories which are dependent on translation regulation in the gustatory cortex (GC) hours following acquisition. However, the role of transcription regulation in the process is unknown. Here, we report that transcription in the GC is necessary for taste learning in rats, and that drinking and its consequences, as well as the novel taste experience, affect transcription in the GC during taste memory consolidation. We show differential effects of learning on temporal dynamics in set of genes in the GC, including Arc/Arg3.1, known to regulate the homeostasis of excitatory synapses. We demonstrate that in taste learning, transcription programs were activated following the physiological responses (i.e., fluid consumption following a water restriction regime, reward, arousal of the animal, etc.) and the specific information about a given taste (i.e., taste novelty). Moreover, the cortical differential prolonged kinetics of mRNA following novel versus familiar taste learning may represent additional novelty related molecular response, where not only the total amount, but also the temporal dynamics of transcription is modulated by sensory experience of novel information.

  5. The role of riparian vegetation density, channel orientation and water velocity in determining river temperature dynamics

    Science.gov (United States)

    Garner, Grace; Malcolm, Iain A.; Sadler, Jonathan P.; Hannah, David M.

    2017-10-01

    A simulation experiment was used to understand the importance of riparian vegetation density, channel orientation and flow velocity for stream energy budgets and river temperature dynamics. Water temperature and meteorological observations were obtained in addition to hemispherical photographs along a ∼1 km reach of the Girnock Burn, a tributary of the Aberdeenshire Dee, Scotland. Data from nine hemispherical images (representing different uniform canopy density scenarios) were used to parameterise a deterministic net radiation model and simulate radiative fluxes. For each vegetation scenario, the effects of eight channel orientations were investigated by changing the position of north at 45° intervals in each hemispheric image. Simulated radiative fluxes and observed turbulent fluxes drove a high-resolution water temperature model of the reach. Simulations were performed under low and high water velocity scenarios. Both velocity scenarios yielded decreases in mean (≥1.6 °C) and maximum (≥3.0 °C) temperature as canopy density increased. Slow-flowing water resided longer within the reach, which enhanced heat accumulation and dissipation, and drove higher maximum and lower minimum temperatures. Intermediate levels of shade produced highly variable energy flux and water temperature dynamics depending on the channel orientation and thus the time of day when the channel was shaded. We demonstrate that in many reaches relatively sparse but strategically located vegetation could produce substantial reductions in maximum temperature and suggest that these criteria are used to inform future river management.

  6. Nascent chromatin capture proteomics determines chromatin dynamics during DNA replication and identifies unknown fork components

    DEFF Research Database (Denmark)

    Alabert, Constance; Bukowski-Wills, Jimi-Carlo; Lee, Sung-Po

    2014-01-01

    To maintain genome function and stability, DNA sequence and its organization into chromatin must be duplicated during cell division. Understanding how entire chromosomes are copied remains a major challenge. Here, we use nascent chromatin capture (NCC) to profile chromatin proteome dynamics during...... replication in human cells. NCC relies on biotin-dUTP labelling of replicating DNA, affinity purification and quantitative proteomics. Comparing nascent chromatin with mature post-replicative chromatin, we provide association dynamics for 3,995 proteins. The replication machinery and 485 chromatin factors...... such as CAF-1, DNMT1 and SUV39h1 are enriched in nascent chromatin, whereas 170 factors including histone H1, DNMT3, MBD1-3 and PRC1 show delayed association. This correlates with H4K5K12diAc removal and H3K9me1 accumulation, whereas H3K27me3 and H3K9me3 remain unchanged. Finally, we combine NCC enrichment...

  7. Simultaneous determination of dynamic cardiac metabolism and function using PET/MRI.

    Science.gov (United States)

    Barton, Gregory P; Vildberg, Lauren; Goss, Kara; Aggarwal, Niti; Eldridge, Marlowe; McMillan, Alan B

    2018-05-01

    Cardiac metabolic changes in heart disease precede overt contractile dysfunction. However, metabolism and function are not typically assessed together in clinical practice. The purpose of this study was to develop a cardiac positron emission tomography/magnetic resonance (PET/MR) stress test to assess the dynamic relationship between contractile function and metabolism in a preclinical model. Following an overnight fast, healthy pigs (45-50 kg) were anesthetized and mechanically ventilated. 18 F-fluorodeoxyglucose ( 18 F-FDG) solution was administered intravenously at a constant rate of 0.01 mL/s for 60 minutes. A cardiac PET/MR stress test was performed using normoxic gas (F I O 2  = .209) and hypoxic gas (F I O 2  = .12). Simultaneous cardiac imaging was performed on an integrated 3T PET/MR scanner. Hypoxic stress induced a significant increase in heart rate, cardiac output, left ventricular (LV) ejection fraction (EF), and peak torsion. There was a significant decline in arterial SpO 2 , LV end-diastolic and end-systolic volumes in hypoxia. Increased LV systolic function was coupled with an increase in myocardial FDG uptake (Ki) during hypoxic stress. PET/MR with continuous FDG infusion captures dynamic changes in both cardiac metabolism and contractile function. This technique warrants evaluation in human cardiac disease for assessment of subtle functional and metabolic abnormalities.

  8. The political dimension of "linking social capital"

    DEFF Research Database (Denmark)

    Rubin, Olivier

    2016-01-01

    . Through an analysis of existing analytical practices, the article concludes that linking social capital is often subordinated to the two related social capital concepts of bonding and bridging, and that linking social capital is often exclusively defined and operationalized based on expressions...... of organizational trust and participation. The article proposes a recalibration to encompass the political dynamics, and political survival theory is recommended as a way to address the hitherto underexplored governance dimension. Rather than using trust as the analytical pivot, this analytical entry point may...

  9. Political tug of war

    Energy Technology Data Exchange (ETDEWEB)

    Morhart, Alexander

    2011-07-01

    Rapid expansion of the European power grid is essential for the further development of wind and solar energy. The most significant obstacles are not technical, but rather of a political nature. (orig.)

  10. Political communication research

    DEFF Research Database (Denmark)

    Nielsen, Rasmus Kleis

    2014-01-01

    The rise of new media and the broader set of social changes they are part of present political communication research with new challenges and new opportunities at a time when many think the field is at an intellectual impasse (e.g., Bennett & Iyengar, 2008). In this article, I argue that parts...... of the field’s problems are rooted in the way in which political communication research has developed since the 1960s. In this period, the field has moved from being interdisciplinary and mixed-methods to being more homogenous and narrowly focused, based primarily on ideas developed in social psychology......, certain strands of political science, and the effects-tradition of mass communication research. This dominant paradigm has contributed much to our understanding of some aspects of political communication. But it is struggling to make sense of many others, including questions concerning people’s experience...

  11. Glosa about political ethics

    Directory of Open Access Journals (Sweden)

    Ćorić Dragana

    2013-01-01

    Full Text Available Debates about political ethics aren't new. They have been present since ancient Greek philosophers. Machiavelli set some new principles, regarding amoral behavior of the prince, which could be quite legitimate and legal. He didn't invented anything new, he just admitted that, that was the reality. Some modern authors think that ethics and politics should be departed always, some other think that they should cooperate. In the end of the day, the voters are those who must face with amoral behavior of politicians, because it seems that politicians don't recognize ethics at all? Or is it just look like? In this paper, we will try in short to tell something about origins of political ethics, its burning issues, and about possible ways of implementation of political ethics and its development.

  12. Political State Boundary (National)

    Data.gov (United States)

    Department of Transportation — State boundaries with political limit - boundaries extending into the ocean (NTAD). The TIGER/Line Files are shapefiles and related database files (.dbf) that are an...

  13. Gendering transnational party politics

    DEFF Research Database (Denmark)

    Kantola, Johanna; Rolandsen-Agustín, Lise

    2016-01-01

    research traditions, we build toward an analytical framework to study gender and transnational party politics. Our empirical analysis focuses on two policy issues, the economic crisis and the sexual and reproductive health and rights, analyzing European Parliament reports, debates and voting on the issues...... from 2009 to 2014. By focusing on gender equality constructions and the way in which consensus and contestation are built around them within and between party groups, we argue that shared constructions about gender equality are issue specific and change over time. Consensus breaks down along the left......In this article, we analyze transnational party politics in the European Union from a gender perspective. This is a subject that has been neglected both by mainstream European studies on party politics and by gender scholars who work on political parties. Drawing on the insights of these two...

  14. Protest Demonstrations, Political Partici

    African Journals Online (AJOL)

    DR Nneka

    2015-04-14

    Apr 14, 2015 ... the Era of Terrorism: Nigeria's Public Order Act and the ... Charter on Human and Peoples' Rights and other international laws. But owing to the .... little sense to limit analysis of political participation to voting and electoral.

  15. Understanding political market orientation

    DEFF Research Database (Denmark)

    Ormrod, Robert P.; Henneberg, Stephan C.

    influences of such behavior. The study includes structural equation modeling to investigate several propositions. While the results show that political parties need to focus on several different aspects of market-oriented behavior, especially using an internal and external orientation as cultural antecedents......This article develops a conceptual framework and measurement model of political market orientation that consists of attitudinal and behavioural constructs. The article reports on perceived relationships among different behavioral aspects of political market orientation and the attitudinal......, a more surprising result is the inconclusive effect of a voter orientation on market-oriented behaviours. The article discusses the findings in the context of the existing literature in political marketing and commercial market orientation....

  16. Political communication in referendums

    NARCIS (Netherlands)

    de Vreese, C.H.; Schuck, A.R.T.; Reinemann, C.

    2014-01-01

    This chapter reviews research on political communication in referendums that have become increasingly popular in democracies worldwide. The authors define key characteristics of referendums, touch upon participation in and popular support for referendums, and highlight the differences between them

  17. Political conversations on Facebook

    DEFF Research Database (Denmark)

    Sørensen, Mads P.

    2016-01-01

    Political conversations are according to theories on deliberative democracy essential to well-functioning democracies. Traditionally these conversations have taken place in face-to-face settings, in e.g. party meetings and town meetings. However, social media such as Facebook and Twitter offers new...... possibilities for online political conversations between citizens and politicians. This paper examines the presence on Facebook and Twitter of Members of the Danish national Parliament, the Folketing, and focusses on a quantitative mapping of the political conversation activities taking place in the threads...... following Facebook posts from Danish Members of Parliament (MPs). The paper shows that, in comparison with previous findings from other countries, Danish MPs have a relatively high degree of engagement in political conversations with citizens on Facebook – and that a large number of citizens follow MPs...

  18. Gaps in Political Interest

    DEFF Research Database (Denmark)

    Robison, Joshua

    2015-01-01

    Political interest fundamentally influences political behavior, knowledge, and persuasion (Brady, Verba, & Schlozman, 1995; Delli Carpini & Keeter, 1996; Luskin, 1990; Zukin, Andolina, Keeter, Jenkins, & Delli Carpini, 2006). Since the early 1960s, the American National Election Studies (ANES) has...... sought to measure respondents’ general interest in politics by asking them how often they follow public affairs. In this article, we uncover novel sources of measurement error concerning this question. We first show that other nationally representative surveys that frequently use this item deliver...... drastically higher estimates of mass interest. We then use a survey experiment included on a wave of the ANES’ Evaluating Government and Society Surveys (EGSS) to explore the influence of question order in explaining this systemic gap in survey results. We show that placing batteries of political...

  19. Mixing politics and crime

    DEFF Research Database (Denmark)

    Munksgaard, Rasmus; Demant, Jakob Johan

    2016-01-01

    Background Dread Pirate Roberts, founder of the first cryptomarket for illicit drugs named Silk Road, articulated libertarian political motives for his ventures. Previous research argues that there is a significant political component present or involved in cryptomarket drug dealing which...... is specifically libertarian. The aim of the paper is to investigate the prevalence of political discourses within discussions of cryptomarket drug dealing, and further to research the potential changes of these over the timespan of the study. Methods We develop a novel operationalization of discourse analytic...... concepts which we combine with topic modelling enabling us to study how politics are articulated on cryptomarket forums. We apply the Structural Topic Model on a corpus extracted from crawls of cryptomarket forums encompassing posts dating from 2011 to 2015. Results The topics discussed on cryptomarket...

  20. Politics of Inclusion and Empowerment

    DEFF Research Database (Denmark)

    Andersen, John; Siim, Birte

    2004-01-01

    identities. Politics of empowerment has to do with the agency and mobilisation dimension of social and political change. The title of the book "Politics of Inclusion and Empowerment" address the leitmotiv: namely to discuss plussumgame between politics of inclusion and politics of empowerment......The objective of the book is to analyse different politics of inclusion and empowerment and the different paradigms of inclusion/exclusion in order to underline the close link between politics of scoial equality and politics of recognition of ciultural difference. Politics of inclusion is thus...... theproductive/innovative linkage of politics of redistributuin and politics og resognition, whnich over a longer time span creates sustainable paths of democratic and social development, which increases the capacity to handle both conflicts about economic resources and life-chances and conflicts about...

  1. Scientific and political equation

    International Nuclear Information System (INIS)

    Stronberg, J.B.

    1978-01-01

    The conflict between technological and political decisions concerning a spent fuel policy is again proclaimed. It is pointed out that this must be a decision at the national level and that new studies on areas already studied is a method of avoiding decisions. The author states that he doubts that ''a policy, capable of implementation within a reasonable time frame,'' can be developed if restrictions are not placed ''upon the political as well as the technical community.''

  2. Redefining the political moment

    Directory of Open Access Journals (Sweden)

    James Arvanitakis

    2011-07-01

    Full Text Available On 16 February 2003, more than half a million people gathered in Sydney, Australia, as part of a global anti-war protest aimed at stopping the impending invasion of Iraq by the then US Administration. It is difficult to estimate how many millions marched on the coordinated protest, but it was by far the largest mobilization of a generation. Walking and chanting on the streets of Sydney that day, it seemed that a political moment was upon us. In a culture that rarely embraces large scale activism, millions around Australian demanded to be heard. The message was clear: if you do not hear us, we would be willing to bring down a government. The invasion went ahead, however, with the then Australian government, under the leadership of John Howard, being one of the loudest and staunchest supporters of the Bush Administrations drive to war. Within 18 months, anti-war activists struggled to have a few hundred participants take part in anti-Iraq war rallies, and the Howard Government was comfortably re-elected for another term. The political moment had come and gone, with both social commentators and many members of the public looking for a reason. While the conservative media was often the focus of analysis, this paper argues that in a time of late capitalism, the political moment is hollowed out by ‘Politics’ itself. That is to say, that formal political processes (or ‘Politics’ undermine the political practices that people participate in everyday (or ‘politics’. Drawing on an ongoing research project focusing on democracy and young people, I discuss how the concept of ’politics‘ has been destabilised and subsequently, the political moment has been displaced. This displacement has led to a re-definition of ‘political action’ and, I argue, the emergence of a different type of everyday politics.

  3. Military and Political Studies

    OpenAIRE

    Alexey I. Podberyozkin

    2014-01-01

    Military-political issues is an important area of research work at MGIMO. The difference in this direction from the classical international specialization is that it is at the intersection of several disciplines: military science, military-technical and military-industrial as well as International Relations. A specialist in military and political issues should not only be an expert in the field of international relations and diplomacy, but also have a deep knowledge of military-technical issu...

  4. Political Education as a Means of Political Socialization.

    Science.gov (United States)

    Grabe, Weronika; Knobelsdorf, Wodzimierz

    1980-01-01

    This essay describes the dimensions of political socialization with systematic political education as a major component. Both promote individual acceptance of political norms--particularly where government and school systems are tightly linked. The authors argue that political socialization should promote effective citizenship rather than simply…

  5. Political Socialization and Political Interest: The Role of School Reassessed

    Science.gov (United States)

    Koskimaa, Vesa; Rapeli, Lauri

    2015-01-01

    There is a growing concern about the lack of political interest and engagement among Western youth. This has led to a revival of political socialization studies. One recent finding is that (late) adolescence is key to understanding the development of interest for politics. This study builds on this finding by examining political interest among…

  6. Lifelong Political Socialization, Consciousness and Political Agency in Israel Today

    Science.gov (United States)

    Michel, Dirk

    2007-01-01

    This article deals with the nexus between biographical experiences in political extraordinary times of crisis, disaster and terror and their influence on political orientations. At the centre of interest is the reconstruction of political orientations related to two different historical-political groups of Jewish Germans who had immigrated or…

  7. The Political Parties and Political Participation in Rivers State, Nigeria

    African Journals Online (AJOL)

    The Political Parties and Political Participation in Rivers State, Nigeria: A Case Study of 2015 General Elections. Goddey Wilson. Abstract. The study reviewed the activities of the political parties and its impact on voters' participation in the political activities in Rivers State. In pursuit of this objective, the study generated ...

  8. The Effects of Majoring in Political Science on Political Efficacy

    Science.gov (United States)

    Dominguez, Casey B. K.; Smith, Keith W.; Williams, J. Michael

    2017-01-01

    This study tests, and finds support, for the hypotheses that a student who majors in political science will have stronger feelings of political competence and will be more willing to engage in hypothetical political actions than two peer groups: (a) those who major in other fields and (b) those who show an interest in politics but have not studied…

  9. The Pragmatics of Political Apology in Ghana's Contemporary Politics

    African Journals Online (AJOL)

    The paper discusses political apology in the 4th republic of Ghanaian contemporary politics from 2013 to 2015. It taps its data from apologetic speeches by political officials and from apologies rendered to politicians. The paper discusses the semantics and pragmatics of political apology. It examines the use of the language ...

  10. Bi facial silicon solar cell study in modelling in frequency dynamic regime under multispectral illumination: Recombination parameters determination methods

    International Nuclear Information System (INIS)

    ZERBO Issa

    2010-01-01

    A bibliographic study on the techniques of characterization of silicon solar cell, diodes, massifs and silicon wafer are presented. The influence of the modulation frequency and recombination in volume and in surface phenomena of on the profiles of carriers' densities, photocurrent and photovoltage has been put in evidence. The study of surface recombination velocities permitted to show that the bi facial silicon solar cell of Back Surface Field type behaves like an ohmic contacts solar cell for modulation frequencies above 40 khz. pplicability in frequency dynamic regime in the frequency range [0 - 40 khz] of three techniques of steady state recombination parameters determination is shown. A technique of diffusion length determination, in the range of (200 Hz - 40 khz] is proposed. It rests on the measurement of the short circuit current phase that is compared with the theoretical curve of short circuit current phase. The intersection of the experimental short circuit current phase and the theoretical curve of short circuit current phase permits to get the minority carriers effective diffusion length. An equivalent electric model of a solar cell in frequency dynamic regime is proposed. A study in modelling of the bi facial solar cell shunt resistance and space charge zone capacity is led from a determination method of these parameters proposed in steady state. (Author [fr

  11. Accelerated pharmacokinetic map determination for dynamic contrast enhanced MRI using frequency-domain based Tofts model.

    Science.gov (United States)

    Vajuvalli, Nithin N; Nayak, Krupa N; Geethanath, Sairam

    2014-01-01

    Dynamic Contrast Enhanced Magnetic Resonance Imaging (DCE-MRI) is widely used in the diagnosis of cancer and is also a promising tool for monitoring tumor response to treatment. The Tofts model has become a standard for the analysis of DCE-MRI. The process of curve fitting employed in the Tofts equation to obtain the pharmacokinetic (PK) parameters is time-consuming for high resolution scans. Current work demonstrates a frequency-domain approach applied to the standard Tofts equation to speed-up the process of curve-fitting in order to obtain the pharmacokinetic parameters. The results obtained show that using the frequency domain approach, the process of curve fitting is computationally more efficient compared to the time-domain approach.

  12. Potassium dynamics are attenuated in hyperkalemia and a determinant of QT adaptation in exercising hemodialysis patients

    DEFF Research Database (Denmark)

    Tran, Cao Thach; Bundgaard, Henning; Ladefoged, Søren Daustrand

    2013-01-01

    Disturbances in plasma potassium concentration (pK) are well known risk factors for the development of cardiac arrhythmia. The aims of the present study were to evaluate the effect of hemodialysis on exercise pK dynamics and QT hysteresis, and whether QT hysteresis is associated with the p......K decrease following exercise. Twenty-two end-stage renal disease patients exercised on a cycle ergometer with incremental work load before and after hemodialysis. ECG was recorded and pK was measured during exercise and recovery. During exercise, pK increased from 5.1 ± 0.2 to 6.1 ± 0.2 mM (mean ± SE; P...

  13. Determination of organochlorine pesticides in water using dynamic hook-type liquid-phase microextraction

    International Nuclear Information System (INIS)

    Chen, Pai-Shan; Huang, Shih-Pin; Fuh, Ming-Ren; Huang, Shang-Da

    2009-01-01

    We developed a simple and efficient headspace liquid-phase microextraction (LPME) technique named dynamic hook-type liquid-phase microextraction (DHT-LPME) and used it in combination with gas chromatography-mass spectrometry (GC-MS) and an electron capture detector (ECD). Aqueous specimens of organochlorine pesticides (OCPs) were used as model compounds to demonstrate the effectiveness of the technique. In the present study, the calibration curves were linear over at least 2 orders of magnitude with R 2 values of 0.997. The method detection limits (MDLs) varied from 2 to 44.0 ng L -1 . The precision of DHT-LPME ranged from 6.5 to 14.4%. The relative recoveries of OCPs in rainwater were more than 84.2%. Enrichment factors (EF) in the range 275-1127 were obtained using DHT-LPME.

  14. The dynamics of mergers and acquisitions: ancestry as the seminal determinant.

    Science.gov (United States)

    Viegas, Eduardo; Cockburn, Stuart P; Jensen, Henrik J; West, Geoffrey B

    2014-11-08

    Understanding the fundamental mechanisms behind the complex landscape of corporate mergers and acquisitions is of crucial importance to economies across the world. Adapting ideas from the fields of complexity and evolutionary dynamics to analyse business ecosystems, we show here that ancestry, i.e. the cumulative sum of historical mergers across all ancestors, is the key characteristic to company mergers and acquisitions. We verify this by comparing an agent-based model to an extensive range of business data, covering the period from the 1830s to the present day and a range of industries and geographies. This seemingly universal mechanism leads to imbalanced business ecosystems, with the emergence of a few very large, but sluggish 'too big to fail' entities, and very small, niche entities, thereby creating a paradigm where a configuration akin to effective oligopoly or monopoly is a likely outcome for free market systems.

  15. Determination of organochlorine pesticides in water using dynamic hook-type liquid-phase microextraction

    Energy Technology Data Exchange (ETDEWEB)

    Chen, Pai-Shan; Huang, Shih-Pin [Department of Chemistry, National Tsing Hua University, Hsinchu 30013, Taiwan (China); Fuh, Ming-Ren, E-mail: msfuh@mail.scu.edu.tw [Department of Chemistry, Soochow University, Taipei, Taiwan (China); Huang, Shang-Da, E-mail: sdhuang@mx.nthu.edu.tw [Department of Chemistry, National Tsing Hua University, Hsinchu 30013, Taiwan (China)

    2009-08-11

    We developed a simple and efficient headspace liquid-phase microextraction (LPME) technique named dynamic hook-type liquid-phase microextraction (DHT-LPME) and used it in combination with gas chromatography-mass spectrometry (GC-MS) and an electron capture detector (ECD). Aqueous specimens of organochlorine pesticides (OCPs) were used as model compounds to demonstrate the effectiveness of the technique. In the present study, the calibration curves were linear over at least 2 orders of magnitude with R{sup 2} values of 0.997. The method detection limits (MDLs) varied from 2 to 44.0 ng L{sup -1}. The precision of DHT-LPME ranged from 6.5 to 14.4%. The relative recoveries of OCPs in rainwater were more than 84.2%. Enrichment factors (EF) in the range 275-1127 were obtained using DHT-LPME.

  16. Threshold defect production in silicon determined by density functional theory molecular dynamics simulations

    International Nuclear Information System (INIS)

    Holmstroem, E.; Kuronen, A.; Nordlund, K.

    2008-01-01

    We studied threshold displacement energies for creating stable Frenkel pairs in silicon using density functional theory molecular dynamics simulations. The average threshold energy over all lattice directions was found to be 36±2 STAT ±2 SYST eV, and thresholds in the directions and were found to be 20±2 SYST eV and 12.5±1.5 SYST eV, respectively. Moreover, we found that in most studied lattice directions, a bond defect complex is formed with a lower threshold than a Frenkel pair. The average threshold energy for producing either a bond defect or a Frenkel pair was found to be 24±1 STAT ±2 SYST eV

  17. Molecular Dynamic Simulation of Water Vapor and Determination of Diffusion Characteristics in the Pore

    Science.gov (United States)

    Nikonov, Eduard G.; Pavluš, Miron; Popovičová, Mária

    2018-02-01

    One of the varieties of pores, often found in natural or artificial building materials, are the so-called blind pores of dead-end or saccate type. Three-dimensional model of such kind of pore has been developed in this work. This model has been used for simulation of water vapor interaction with individual pore by molecular dynamics in combination with the diffusion equation method. Special investigations have been done to find dependencies between thermostats implementations and conservation of thermodynamic and statistical values of water vapor - pore system. The two types of evolution of water - pore system have been investigated: drying and wetting of the pore. Full research of diffusion coefficient, diffusion velocity and other diffusion parameters has been made.

  18. Dynamical behaviors determined by the Lyapunov function in competitive Lotka-Volterra systems

    Science.gov (United States)

    Tang, Ying; Yuan, Ruoshi; Ma, Yian

    2013-01-01

    Dynamical behaviors of the competitive Lotka-Volterra system even for 3 species are not fully understood. In this paper, we study this problem from the perspective of the Lyapunov function. We construct explicitly the Lyapunov function using three examples of the competitive Lotka-Volterra system for the whole state space: (1) the general 2-species case, (2) a 3-species model, and (3) the model of May-Leonard. The basins of attraction for these examples are demonstrated, including cases with bistability and cyclical behavior. The first two examples are the generalized gradient system, where the energy dissipation may not follow the gradient of the Lyapunov function. In addition, under a new type of stochastic interpretation, the Lyapunov function also leads to the Boltzmann-Gibbs distribution on the final steady state when multiplicative noise is added.

  19. Determination of a sagittal plane axis of rotation for a dynamic office chair.

    Science.gov (United States)

    Bauer, C M; Rast, F M; Böck, C; Kuster, R P; Baumgartner, D

    2018-10-01

    This study investigated the location of the axis of rotation in sagittal plane movement of the spine in a free sitting condition to adjust the kinematics of a mobile seat for a dynamic chair. Dynamic office chairs are designed to avoid continuous isometric muscle activity, and to facilitate increased mobility of the back during sitting. However, these chairs incorporate increased upper body movement which could distract office workers from the performance of their tasks. A chair with an axis of rotation above the seat would facilitate a stable upper back during movements of the lower back. The selection of a natural kinematic pattern is of high importance in order to match the properties of the spine. Twenty-one participants performed four cycles of flexion and extension of the spine during an upper arm hang on parallel bars. The location of the axis of rotation relative to the seat was estimated using infrared cameras and reflective skin markers. The median axis of rotation across all participants was located 36 cm above the seat for the complete movement and 39 cm for both the flexion and extension phases, each with an interquartile range of 20 cm. There was no significant effect of the movement direction on the location of the axis of rotation and only a weak, non-significant correlation between body height and the location of the axis of rotation. Individual movement patterns explained the majority of the variance. The axis of rotation for a spinal flexion/extension movement is located above the seat. The recommended radius for a guide rail of a mobile seat is between 36 cm and 39 cm. Copyright © 2018 Elsevier Ltd. All rights reserved.

  20. Polyubiquitin chain assembly and organisation determine the dynamics of protein activation and degradation

    Directory of Open Access Journals (Sweden)

    Lan K. Nguyen

    2014-01-01

    Full Text Available Protein degradation via ubiquitination is a major proteolytic mechanism in cells. Once a protein is destined for degradation, it is tagged by multiple ubiquitin molecules. The synthesised polyubiquitin chains can be recognised by the 26S proteosome where proteins are degraded. These chains form through multiple ubiquitination cycles that are similar to multi-site phosphorylation cycles. As kinases and phosphatases, two opposing enzymes (E3 ligases and deubiquitinases DUBs catalyse (deubiquitination cycles. Although multi-ubiquitination cycles are fundamental mechanisms of controlling protein concentrations within a cell, their dynamics have never been explored. Here, we fill this knowledge gap. We show that under permissive physiological conditions, the formation of polyubiquitin chain of length greater than two and subsequent degradation of the ubiquitinated protein, which is balanced by protein synthesis, can display bistable, switch-like responses. Interestingly, the occurrence of bistability becomes pronounced, as the chain grows, giving rise to all-or-none regulation at the protein levels. We give predictions of protein distributions under bistable regime awaiting experimental verification. Importantly, we show for the first time that sustained oscillations can robustly arise in the process of formation of ubiquitin chain, largely due to the degradation of the target protein. This new feature is opposite to the properties of multi-site phosphorylation cycles, which are incapable of generating oscillation if the total abundance of interconverted protein forms is conserved. We derive structural and kinetic constraints for the emergence of oscillations, indicating that a competition between different substrate forms and the E3 and DUB is critical for oscillation. Our work provides the first detailed elucidation of the dynamical features brought about by different molecular setups of the polyubiquitin chain assembly process responsible for

  1. Dynamical patterning modules: physico-genetic determinants of morphological development and evolution

    International Nuclear Information System (INIS)

    Newman, Stuart A; Bhat, Ramray

    2008-01-01

    The shapes and forms of multicellular organisms arise by the generation of new cell states and types and changes in the numbers and rearrangements of the various kinds of cells. While morphogenesis and pattern formation in all animal species are widely recognized to be mediated by the gene products of an evolutionarily conserved 'developmental-genetic toolkit', the link between these molecular players and the physics underlying these processes has been generally ignored. This paper introduces the concept of 'dynamical patterning modules' (DPMs), units consisting of one or more products of the 'toolkit' genes that mobilize physical processes characteristic of chemically and mechanically excitable meso- to macroscopic systems such as cell aggregates: cohesion, viscoelasticity, diffusion, spatiotemporal heterogeneity based on lateral inhibition and multistable and oscillatory dynamics. We suggest that ancient toolkit gene products, most predating the emergence of multicellularity, assumed novel morphogenetic functions due to change in the scale and context inherent to multicellularity. We show that DPMs, acting individually and in concert with each other, constitute a 'pattern language' capable of generating all metazoan body plans and organ forms. The physical dimension of developmental causation implies that multicellular forms during the explosive radiation of animal body plans in the middle Cambrian, approximately 530 million years ago, could have explored an extensive morphospace without concomitant genotypic change or selection for adaptation. The morphologically plastic body plans and organ forms generated by DPMs, and their ontogenetic trajectories, would subsequently have been stabilized and consolidated by natural selection and genetic drift. This perspective also solves the apparent 'molecular homology-analogy paradox', whereby widely divergent modern animal types utilize the same molecular toolkit during development by proposing, in contrast to the Neo

  2. Demographic and Socio-economic Determinants of Birth Interval Dynamics in Manipur: A Survival Analysis

    Directory of Open Access Journals (Sweden)

    Sanajaoba Singh N,

    2011-01-01

    Full Text Available The birth interval is a major determinant of levels of fertility in high fertility populations. A house-to-house survey of 1225 women in Manipur, a tiny state in North Eastern India was carried out to investigate birth interval patterns and its determinants. Using survival analysis, among the nine explanatory variables of interest, only three factors – infant mortality, Lactation and use of contraceptive devices have highly significant effect (P<0.01 on the duration of birth interval and only three factors – age at marriage of wife, parity and sex of child are found to be significant (P<0.05 on the duration variable.

  3. Evaluation of flow accelerated corrosion by coupled analysis of corrosion and flow dynamics (2), flow dynamics calculations for determining mixing factors and mass transfer coefficients

    International Nuclear Information System (INIS)

    Uehara, Yasushi; Uchida, Shunsuke; Naitoh, Masanori; Okada, Hidetoshi; Koshizuka, Seiichi

    2009-01-01

    In order to predict and mitigate flow accelerated corrosion (FAC) of carbon steel piping in PWR and BWR secondary systems, computer program packages for evaluating FAC have been developed by coupling one through three dimensional (1-3D) computational flow dynamics (CFD) models and corrosion models. To evaluate corrosive conditions, e.g., oxygen concentration and electrochemical corrosion potential (ECP) along the flow path, flow pattern and temperature in each elemental volume were obtained with 1D computational flow dynamics (CFD) codes. Precise flow turbulence and mass transfer coefficients at the structure surface were calculated with 3D CFD codes to determine wall thinning rates. One of the engineering options is application of k-ε calculation as a 3D CFD code, which has limitation of detail evaluation of flow distribution at very surface of large scale piping. A combination of k-ε calculation and wall function was proposed to evaluate precise distribution of mass transfer coefficients with reasonable CPU volume and computing time and, at the same time, reasonable accuracy. (author)

  4. Spatial Dynamics and Determinants of County-Level Education Expenditure in China

    Science.gov (United States)

    Gu, Jiafeng

    2012-01-01

    In this paper, a multivariate spatial autoregressive model of local public education expenditure determination with autoregressive disturbance is developed and estimated. The existence of spatial interdependence is tested using Moran's I statistic and Lagrange multiplier test statistics for both the spatial error and spatial lag models. The full…

  5. Epidemiology, determinants and dynamics of cholera in pakistan: gaps and prospects for future research

    International Nuclear Information System (INIS)

    Naseer, M.; Jamali, T.

    2014-01-01

    Cholera is one of the notifiable endemic diseases in Pakistan, but the reporting of cholera cases is still unsatisfactory. Most of the diagnosed cases are never reported to the relevant authorities. In the year 1993 - 2005, the country did not report any single case of cholera to the WHO. The objectives of this review were to understand the epidemiology and to identify the possible determinants of cholera infection in Pakistan. Medscape, Medline, PakMedinet and PubMed, was searched, using key words, epidemiology and determinants of cholera infection in Pakistan during 1995 - 2010. Morbidity and mortality due to cholera infection during 1995 - 2010, without any language restriction. Out of 27 articles published between 1995 - 2010, 17 articles were included in the review. Vibrio cholerae O139 identified as a major cause of infection in older age group, while O1 biotype of cholera as a predominant cause of cholera among young individuals. Mainly reported determinants of cholera in Pakistan include poor sanitation and hygiene practices, increased population density in urban areas, leading to rapid and unplanned urbanization of the major cities and climate change due to increased environmental pollution in Pakistan are plausible factors for endemicity of cholera in Pakistan. Cholera reporting as a notifiable disease to the relevant departments and timely action can prevent the risk of outbreaks. There is a need to identify specific behavioral and environmental determinants responsible for outbreaks and epidemics of cholera in Pakistan which can help to design appropriate preventive and control interventions. (author)

  6. Temporal Dynamics and Decomposition of Reciprocal Determinism: A Reply to Phillips and Orton.

    Science.gov (United States)

    Bandura, Albert

    1983-01-01

    In their analysis of reciprocal determinism, Phillips and Orton (TM 509 061) mistakenly assume that behavior, cognitive and other personal factors, and environmental events operate as a simultaneous wholistic interaction. Contrary to this belief, the interactants in triadic reciprocality work their mutual effects sequentially over variable time…

  7. Fostering Scholarly Discussion and Critical Thinking in the Political Science Classroom

    Science.gov (United States)

    Marks, Michael P.

    2008-01-01

    This article suggests strategies for promoting scholarly discussion and critical thinking in political science classes. When scholars study politics they are engaged in an investigation into the dynamics of governance, not a debate over personal political beliefs. The problem with a politicized classroom is that it gives students a false…

  8. Political demography: Powerful trends under-attended by demographic science.

    Science.gov (United States)

    Teitelbaum, Michael S

    2015-01-01

    The interconnections between politics and the dramatic demographic changes under way around the world have been neglected by the two research disciplines that could contribute most to their understanding: demography and political science. Instead, this area of 'political demography' has largely been ceded to political activists, pundits, and journalists, leading often to exaggerated or garbled interpretation. The terrain includes some of the most politically sensitive and contested issues: alleged demographically determined shifts in the international balance of power; low fertility, population decline, and demographic ageing; international migration; change in national identity; and compositional shifts in politically sensitive social categories and human rights. Meanwhile many governments and non-governmental actors have actively pursued varieties of 'strategic demography', deploying fertility, mortality, or migration as instruments of domestic or international policy. Political scientists and demographers could and should use their knowledge and analytic techniques to improve understanding and to moderate excessive claims and fears on these topics.

  9. The genetics of politics: discovery, challenges, and progress.

    Science.gov (United States)

    Hatemi, Peter K; McDermott, Rose

    2012-10-01

    For the greater part of human history, political behaviors, values, preferences, and institutions have been viewed as socially determined. Discoveries during the 1970s that identified genetic influences on political orientations remained unaddressed. However, over the past decade, an unprecedented amount of scholarship utilizing genetic models to expand the understanding of political traits has emerged. Here, we review the 'genetics of politics', focusing on the topics that have received the most attention: attitudes, ideologies, and pro-social political traits, including voting behavior and participation. The emergence of this research has sparked a broad paradigm shift in the study of political behaviors toward the inclusion of biological influences and recognition of the mutual co-dependence between genes and environment in forming political behaviors. Copyright © 2012 Elsevier Ltd. All rights reserved.

  10. MAPPING CHILDREN’S POLITICS: SPATIAL STORIES, DIALOGIC RELATIONS AND POLITICAL FORMATION

    Science.gov (United States)

    Elwood, Sarah; Mitchell, Katharyne

    2015-01-01

    This article confronts a persistent challenge in research on children’s geographies and politics: the difficulty of recognizing forms of political agency and practice that by definition fall outside of existing political theory. Children are effectively “always already” positioned outside most of the structures and ideals of modernist democratic theory, such as the public sphere and abstracted notions of communicative action or “rational” speech. Recent emphases on embodied tactics of everyday life have offered important ways to recognize children’s political agency and practice. However, we argue here that a focus on spatial practices and critical knowledge alone cannot capture the full range of children’s politics, and show how representational and dialogic practices remain a critical element of their politics in everyday life. Drawing on de Certeau’s notion of spatial stories, and Bakhtin’s concept of dialogic relations, we argue that children’s representations and dialogues comprise a significant space of their political agency and formation, in which they can make and negotiate social meanings, subjectivities, and relationships. We develop these arguments with evidence from an after-school activity programme we conducted with 10–13 year olds in Seattle, Washington, in which participants explored, mapped, wrote and spoke about the spaces and experiences of their everyday lives. Within these practices, children negotiate autonomy and self-determination, and forward ideas, representations, and expressions of agreement or disagreement that are critical to their formation as political actors. PMID:25642017

  11. Political Culture and the Nature of Political Participation in Egypt.

    Science.gov (United States)

    1980-06-01

    political socialization . Political-cultural values are gradually internalized within the society and political behavior is largely reflective of...the extent to which the regime used education as a means of political socialization : Socialism is articulated as a Muslim theory of socialism. The head... political socialization except for a brief period during the mobilization program of Ali Sabri. Egypt’s party system has been more relevant for

  12. Determining

    Directory of Open Access Journals (Sweden)

    Bahram Andarzian

    2015-06-01

    Full Text Available Wheat production in the south of Khuzestan, Iran is constrained by heat stress for late sowing dates. For optimization of yield, sowing at the appropriate time to fit the cultivar maturity length and growing season is critical. Crop models could be used to determine optimum sowing window for a locality. The objectives of this study were to evaluate the Cropping System Model (CSM-CERES-Wheat for its ability to simulate growth, development, grain yield of wheat in the tropical regions of Iran, and to study the impact of different sowing dates on wheat performance. The genetic coefficients of cultivar Chamran were calibrated for the CSM-CERES-Wheat model and crop model performance was evaluated with experimental data. Wheat cultivar Chamran was sown on different dates, ranging from 5 November to 9 January during 5 years of field experiments that were conducted in the Khuzestan province, Iran, under full and deficit irrigation conditions. The model was run for 8 sowing dates starting on 25 October and repeated every 10 days until 5 January using long-term historical weather data from the Ahvaz, Behbehan, Dezful and Izeh locations. The seasonal analysis program of DSSAT was used to determine the optimum sowing window for different locations as well. Evaluation with the experimental data showed that performance of the model was reasonable as indicated by fairly accurate simulation of crop phenology, biomass accumulation and grain yield against measured data. The normalized RMSE were 3%, 2%, 11.8%, and 3.4% for anthesis date, maturity date, grain yield and biomass, respectively. Optimum sowing window was different among locations. It was opened and closed on 5 November and 5 December for Ahvaz; 5 November and 15 December for Behbehan and Dezful;and 1 November and 15 December for Izeh, respectively. CERES-Wheat model could be used as a tool to evaluate the effect of sowing date on wheat performance in Khuzestan conditions. Further model evaluations

  13. The kinematic determinants of anuran swimming performance: an inverse and forward dynamics approach.

    Science.gov (United States)

    Richards, Christopher T

    2008-10-01

    The aims of this study were to explore the hydrodynamic mechanism of Xenopus laevis swimming and to describe how hind limb kinematics shift to control swimming performance. Kinematics of the joints, feet and body were obtained from high speed video of X. laevis frogs (N=4) during swimming over a range of speeds. A blade element approach was used to estimate thrust produced by both translational and rotational components of foot velocity. Peak thrust from the feet ranged from 0.09 to 0.69 N across speeds ranging from 0.28 to 1.2 m s(-1). Among 23 swimming strokes, net thrust impulse from rotational foot motion was significantly higher than net translational thrust impulse, ranging from 6.1 to 29.3 N ms, compared with a range of -7.0 to 4.1 N ms from foot translation. Additionally, X. laevis kinematics were used as a basis for a forward dynamic anuran swimming model. Input joint kinematics were modulated to independently vary the magnitudes of foot translational and rotational velocity. Simulations predicted that maximum swimming velocity (among all of the kinematics patterns tested) requires that maximal translational and maximal rotational foot velocity act in phase. However, consistent with experimental kinematics, translational and rotational motion contributed unequally to total thrust. The simulation powered purely by foot translation reached a lower peak stroke velocity than the pure rotational case (0.38 vs 0.54 m s(-1)). In all simulations, thrust from the foot was positive for the first half of the power stroke, but negative for the second half. Pure translational foot motion caused greater negative thrust (70% of peak positive thrust) compared with pure rotational simulation (35% peak positive thrust) suggesting that translational motion is propulsive only in the early stages of joint extension. Later in the power stroke, thrust produced by foot rotation overcomes negative thrust (due to translation). Hydrodynamic analysis from X. laevis as well as forward

  14. Has Political Science Ignored Religion?

    Science.gov (United States)

    Kettell, Steven

    2012-01-01

    A common complaint from political scientists involved in the study of religion is that religious issues have been largely overlooked by political science. Through a content analysis of leading political science and sociology journals from 2000 to 2010, this article considers the extent of this claim. The results show that political science…

  15. AXIOLOGICAL POTENTIAL OF POLITICAL NICKNAMES

    Directory of Open Access Journals (Sweden)

    SHUSTOVA IRINA NIKOLAEVNA

    2015-01-01

    Full Text Available The article is devoted to the study of axiological possibilities of political nicknames. Political nicknames are very expressive. They can be personal and impersonal. Some nicknames lose their primary meaning to become a part of evaluative political lexis. In the language of politics nicknames often serve not only as means of assessment, but also as ideological weapon.

  16. Politics of inclusion and empowerment

    DEFF Research Database (Denmark)

    Andersen, John; Siim, Birte

    The book examines the political and academic debates about the interplay between political, civil and social citizenship in US and Europe......The book examines the political and academic debates about the interplay between political, civil and social citizenship in US and Europe...

  17. Hierarchical supersymmetry breaking and dynamical determination of compactification parameters by non-perturbative effects

    International Nuclear Information System (INIS)

    Casas, J.A.; Lalak, Z.; Munoz, C.; Ross, G.G.

    1990-01-01

    The characteristics of the effective potentials coming from phenomenologically promising compactified superstring theories are examined, playing special attention to the supersymmetry breaking issue. We find a mechanism for generating the large gauge hierarchy by gaugino condensation effect in the case that the hidden sector possesses more than one condensate. We construct an explicit example based on orbifold compactification in which this is realized. Minimization of the effective potential not only determines the gauge hierarchy but also fixes other important parameters of the theory, in particular the gauge coupling constant at the unification point and the expectation values of the moduli which give the size and shape of the compactified space. These get reasonable values which may, in turn, lead to a determination of the family mass hierarchy. (orig.)

  18. Determination of the Young modulus relaxation of high orders from dynamic experiments on crystals

    International Nuclear Information System (INIS)

    Topchyan, I.I.; Dokhner, R.D.

    1977-01-01

    A theoretical investigation into the inelastic behaviour of a crystal under the effect of a periodic load was carried out. Both the dimentional and module effects in the interaction of anisotropic point effects with the applied-stress fields and also the anharmonism of the interatomic interaction forces were taken into account. In this case the crystal deformation can be presented as a superposition of higher-order harmonics with a frequency multiple of that of the field applied. It is shown that the phase shift in the first harmonic determines the usually measured internal friction and depends exclusively on the dimentional effect in the interaction of defects with elastic-stress fields. The phase shift in the higher-order harmonics is due both to dimentional and module effects and it is possible, by measuring shift, to determine the ratios between the elastic modules of a defect

  19. Development of nuclear methods for determining fluid-dynamic parameters in fluid catalyst cracking reactors

    International Nuclear Information System (INIS)

    Santos, V.A. dos; Dantas, C.C.

    1986-01-01

    Flow parameters of circulating fluidized bed in a simulated Fluid Catalyst Cracking reactor were determined by means of nuclear methods. The parameters were: residence time, density, inventory, circulation rate and radial distribution, for the catalyst; residence time for the gaseous phase. The nuclear methods where the gamma attenuation and the radiotracer. Two tracer techniques were developed, one for tagging of the catalyst by the 59 Fe as intrinsic tracer and another for tagging of the gaseous phase by the CH 3 82 Br as tracer. A detailed description of each measuring technique for all the investigated parameters is included. To carry out the determination for some of parameters a combination of the two methods was also applied. The results and the nuclear data are given in a table. (Author) [pt

  20. Phylogenetic distribution and evolutionary dynamics of the sex determination genes doublesex and transformer in insects.

    Science.gov (United States)

    Geuverink, E; Beukeboom, L W

    2014-01-01

    Sex determination in insects is characterized by a gene cascade that is conserved at the bottom but contains diverse primary signals at the top. The bottom master switch gene doublesex is found in all insects. Its upstream regulator transformer is present in the orders Hymenoptera, Coleoptera and Diptera, but has thus far not been found in Lepidoptera and in the basal lineages of Diptera. transformer is presumed to be ancestral to the holometabolous insects based on its shared domains and conserved features of autoregulation and sex-specific splicing. We interpret that its absence in basal lineages of Diptera and its order-specific conserved domains indicate multiple independent losses or recruitments into the sex determination cascade. Duplications of transformer are found in derived families within the Hymenoptera, characterized by their complementary sex determination mechanism. As duplications are not found in any other insect order, they appear linked to the haplodiploid reproduction of the Hymenoptera. Further phylogenetic analyses combined with functional studies are needed to understand the evolutionary history of the transformer gene among insects. © 2013 S. Karger AG, Basel.