WorldWideScience

Sample records for understanding revolutionary change

  1. Revolutionary land use change in the 21st century: Is (rangeland) science relevant?

    Science.gov (United States)

    Herrick, J.E.; Brown, J.R.; Bestelmeyer, B.T.; Andrews, S.S.; Baldi, G.; Davies, J.; Duniway, M.; Havstad, K.M.; Karl, J.W.; Karlen, D.L.; Peters, Debra P.C.; Quinton, J.N.; Riginos, C.; Shaver, P.L.; Steinaker, D.; Twomlow, S.

    2012-01-01

    Rapidly increasing demand for food, fiber, and fuel together with new technologies and the mobility of global capital are driving revolutionary changes in land use throughout the world. Efforts to increase land productivity include conversion of millions of hectares of rangelands to crop production, including many marginal lands with low resistance and resilience to degradation. Sustaining the productivity of these lands requires careful land use planning and innovative management systems. Historically, this responsibility has been left to agronomists and others with expertise in crop production. In this article, we argue that the revolutionary land use changes necessary to support national and global food security potentially make rangeland science more relevant now than ever. Maintaining and increasing relevance will require a revolutionary change in range science from a discipline that focuses on a particular land use or land cover to one that addresses the challenge of managing all lands that, at one time, were considered to be marginal for crop production. We propose four strategies to increase the relevance of rangeland science to global land management: 1) expand our awareness and understanding of local to global economic, social, and technological trends in order to anticipate and identify drivers and patterns of conversion; 2) emphasize empirical studies and modeling that anticipate the biophysical (ecosystem services) and societal consequences of large-scale changes in land cover and use; 3) significantly increase communication and collaboration with the disciplines and sectors of society currently responsible for managing the new land uses; and 4) develop and adopt a dynamic and flexible resilience-based land classification system and data-supported conceptual models (e.g., state-and-transition models) that represent all lands, regardless of use and the consequences of land conversion to various uses instead of changes in state or condition that are

  2. Revolutionary Science.

    Science.gov (United States)

    Casadevall, Arturo; Fang, Ferric C

    2016-03-01

    On rare occasions in the history of science, remarkable discoveries transform human society and forever alter mankind's view of the world. Examples of such discoveries include the heliocentric theory, Newtonian physics, the germ theory of disease, quantum theory, plate tectonics and the discovery that DNA carries genetic information. The science philosopher Thomas Kuhn famously described science as long periods of normality punctuated by times of crisis, when anomalous observations culminate in revolutionary changes that replace one paradigm with another. This essay examines several transformative discoveries in the light of Kuhn's formulation. We find that each scientific revolution is unique, with disparate origins that may include puzzle solving, serendipity, inspiration, or a convergence of disparate observations. The causes of revolutionary science are varied and lack an obvious common structure. Moreover, it can be difficult to draw a clear distinction between so-called normal and revolutionary science. Revolutionary discoveries often emerge from basic science and are critically dependent on nonrevolutionary research. Revolutionary discoveries may be conceptual or technological in nature, lead to the creation of new fields, and have a lasting impact on many fields in addition to the field from which they emerge. In contrast to political revolutions, scientific revolutions do not necessarily require the destruction of the previous order. For humanity to continue to benefit from revolutionary discoveries, a broad palette of scientific inquiry with a particular emphasis on basic science should be supported. Copyright © 2016 Casadevall and Fang.

  3. Revolutionary land use change in the 21st century: Is (rangeland) science relevant?

    Science.gov (United States)

    Rapidly increasing demand for food, fiber and fuel together with new technologies and the mobility of global capital are driving revolutionary changes in land use throughout the world. Efforts to increase land productivity include conversion of millions of hectares of rangelands to crop production, ...

  4. Twenty Five Years of Cognitive Care Education Research: Time for a Revolutionary Change

    Science.gov (United States)

    Porter, Russell; Berry, Jeremy; Cude, Kellie; Anderson, Stephen; Britt, Sanfrena

    2018-01-01

    This is the third study of Cognitive Care Education in New York State nursing homes using cross-sectional methods over a 25 year period. The data indicate that the Cognitive Care Education increased at statistically significant levels, albeit by evolutionary means. It is now time for "A Revolutionary Change," for Cognitive Care…

  5. «FREEDOM OF CONSCIENCE» AND «RELIGIOUS FREEDOM» IN THE UNDERSTANDING OF PRE-REVOLUTIONARY SCIENTISTS

    Directory of Open Access Journals (Sweden)

    Nadezhda Yuryevna Zagaynova

    2015-02-01

    Full Text Available The article considers approaches to the understanding of the concepts of «freedom of conscience» and «religious freedom» on the basis of the analysis of works of pre-revolutionary scientists. Allocated General and special traits defining these phenomena.The aim of this article is (based on the works of pre-revolutionary scientists to analyze ideas about the concept of freedom of conscience and religious liberty. Previously, scientists no attempt has been made to summarize the theoretical aspects of these categories, this is the novelty of the article.The research methodology consists dialectical view on the process of cognition of objective reality. They are implemented on the basis of a systematic approach. The article relies on the basic provisions of philosophy, theology and law.The research methods are universal, scientific and astronaute methods of cognition.In the study we can conclude that the pre-revolutionary scientists have not developed a unified approach with respect to such legal categories as «freedom of conscience and religious liberty».The results can be used in research work and in the educational process.

  6. Chocolate as a Revolutionary Beverage

    OpenAIRE

    Moats, Jean; Freeman, Rebecca

    2016-01-01

    In terms of chocolate revolutionary can mean many things, from the cultural aspect to the change in the way chocolate is prepared. In this paper revolutionary stands for the idea of change, specifically the change in chocolate beverages over time. This change can be seen especially in the variety of flavours that have been and are currently being added to chocolate. Why has there been such a change in this popular drink? What makes it revolutionary in terms of flavours. This interdisciplinary...

  7. Revolutionary Securitization

    DEFF Research Database (Denmark)

    Holbraad, Martin; Pedersen, Morten Axel

    2012-01-01

    premises. In its paradigmatic form, we argue, the model is liberal in that its abiding concern with states of emergency turns on an ontological distinction between political subjects (e.g. people) and political structures (e.g. state). By contrast, revolutionary politics in Cuba concertedly rescinds just...

  8. The Revolutionary Movement in the Evaluation of F.M. Dostoevsky: To Understand Conservatism in the Political History of Russia

    Directory of Open Access Journals (Sweden)

    Konstantin A. Lotarev

    2015-12-01

    Full Text Available The article attempts to show the features of the conservative worldview of F. M. Dostoevsky through the prism of his assessments of the revolutionary movement and socialist ideas in Russia. The main focus is on the analysis of artistic creativity, and journalism, especially "Diary of a Writer". This allowed us to identify the political views of F. M. Dostoevsky and the possibility of their practical implementation. It is concluded that the main cause of the political turmoil in the 1860s – early 1880s, the spread of revolutionary ideas the writer felt a deep moral crisis afflicting Russian society. Therefore, the cause of the crisis he saw not in reforming state institutions, and in fundamental moral renewal of Russian life on the basis of Christian Orthodox values.

  9. Evolving, innovating, and revolutionary changes in cardiovascular imaging: We've only just begun!

    Science.gov (United States)

    Shaw, Leslee J; Hachamovitch, Rory; Min, James K; Di Carli, Marcelo; Mieres, Jennifer H; Phillips, Lawrence; Blankstein, Ron; Einstein, Andrew; Taqueti, Viviany R; Hendel, Robert; Berman, Daniel S

    2018-06-01

    In this review, we highlight the need for innovation and creativity to reinvent the field of nuclear cardiology. Revolutionary ideas brought forth today are needed to create greater value in patient care and highlight the need for more contemporary evidence supporting the use of nuclear cardiology practices. We put forth discussions on the need for disruptive innovation in imaging-guided care that places the imager as a central force in care coordination. Value-based nuclear cardiology is defined as care that is both efficient and effective. Novel testing strategies that defer testing in lower risk patients are examples of the kind of innovation needed in today's healthcare environment. A major focus of current research is the evolution of the importance of ischemia and the prognostic significance of non-obstructive atherosclerotic plaque and coronary microvascular dysfunction. Embracing novel paradigms, such as this, can aid in the development of optimal strategies for coronary disease management. We hope that our article will spurn the field toward greater innovation and focus on transformative imaging leading the way for new generations of novel cardiovascular care.

  10. Understanding climatic change

    International Nuclear Information System (INIS)

    Fellous, J.L.; Gautier, C.; Andre, J.C.; Balstad, R.; Boucher, O.; Brasseur, G.; Chahine, M.T.; Chanin, M.L.; Ciais, P.; Corell, W.; Duplessy, J.C.; Hourcade, J.C.; Jouzel, J.; Kaufman, Y.J.; Laval, K.; Le Treut, H.; Minster, J.F.; Moore, B. III; Morel, P.; Rasool, S.I.; Remy, F.; Smith, R.C.; Somerville, R.C.J.; Wood, E.F.; Wood, H.; Wunsch, C.

    2007-01-01

    Climatic change is gaining ground and with no doubt is stimulated by human activities. It is therefore urgent to better understand its nature, importance and potential impacts. The chapters of this book have been written by US and French experts of the global warming question. After a description of the Intergovernmental Panel on Climate Change (IPCC, GIEC in French) consensus, they present the past and present researches on each of the main component of the climate system, on the question of climatic change impacts and on the possible answers. The conclusion summarizes the results of each chapter. Content: presentation of the IPCC; greenhouse effect, radiation balance and clouds; atmospheric aerosols and climatic change; global water cycle and climate; influence of climatic change on the continental hydrologic cycle; ocean and climate; ice and climate; global carbon cycle; about some impacts of climatic change on Europe and the Atlantic Ocean; interaction between atmospheric chemistry and climate; climate and society, the human dimension. (J.S.)

  11. Wiki management a revolutionary new model for a rapidly changing and collaborative world

    CERN Document Server

    Collins, Rod

    2013-01-01

    We now live in a "wiki" world where mass collaboration is not only possible-it's often the best solution. Conventional management thought assumes that command-and-control is the most effective way to organize the efforts of large numbers of people, but rapid change and increasing complexity have rendered that model obsolete. As a result, most managers today lack the skills and knowledge needed to succeed in an age when networks are proving smarter and faster than hierarchies. Designing organizations for mass collaboration demands a new and very different model-wiki management.

  12. UNDERSTANDING INFORMAL CONSTITUTIONAL CHANGE

    Directory of Open Access Journals (Sweden)

    Stephen M. Griffin

    2016-01-01

    Full Text Available Amid much recent American work on the problem of informal constitutional change, this article stakes out a distinctive position. I argue that theories of constitutional change in the US must address the question of the relationship between the “small c” and “big C” Constitution and treat seriously the possibility of conflict between them. I stress the unavoidable role the text of the Constitution and structural doctrines of federalism and separation of powers play in this relationship and thus in constitutional change, both formal and informal. I therefore counsel against theories that rely solely on a practice-based approach or analogies between “small c” constitutional developments and British or Commonwealth traditions of the “unwritten” constitution and constitutional “conventions.” The alternative I advocate is to approach constitutional change from a historicist perspective that focuses attention on state building and the creation of new institutional capacities. This approach will allow us to make progress by highlighting that there can be multiple constitutional orders in a given historical era, thus accounting for the conflictual nature of contemporary constitutional development in the US.

  13. Far Away from the Revolution: Understanding the Cuban Revolutionary Armed Forces Mission Changes

    Science.gov (United States)

    2011-12-01

    to the inclusion of “four senior FAR officers— Generals Abelardo Colome, Ulises Rosales del Toro, Julio Casas Regueiro, and Leopoldo Cintra Frias...Raulismo.” Revista Guaracabuya. 1999. http://www.amigospais-guaracabuya.org/oagfm001.php. _____. “The Far and its Economic Role: From Civic to

  14. The iSelect 9 K SNP analysis revealed polyploidization induced revolutionary changes and intense human selection causing strong haplotype blocks in wheat.

    Science.gov (United States)

    Hao, Chenyang; Wang, Yuquan; Chao, Shiaoman; Li, Tian; Liu, Hongxia; Wang, Lanfen; Zhang, Xueyong

    2017-01-30

    A Chinese wheat mini core collection was genotyped using the wheat 9 K iSelect SNP array. Total 2420 and 2396 polymorphic SNPs were detected on the A and the B genome chromosomes, which formed 878 haplotype blocks. There were more blocks in the B genome, but the average block size was significantly (P polyploidization of wheat (both tetraploidization and hexaploidization) induced revolutionary changes in both the A and the B genomes, with a greater increase of gene diversity compared to their diploid ancestors. Modern breeding has dramatically increased diversity in the gene coding regions, though obvious blocks were formed on most of the chromosomes in both tetraploid and hexaploid wheats. Tag-SNP markers identified in this study can be used for marker assisted selection using haplotype blocks as a wheat breeding strategy. This strategy can also be employed to facilitate genome selection in other self-pollinating crop species.

  15. Revolutionary Sentiment in Slave Narratives

    DEFF Research Database (Denmark)

    Simonsen, Karen-Margrethe

    2016-01-01

    of genre and are written not by the victims but by ‘spectators’, political or human rights agents, historians or literary writers who are in a distanced position from the actual slavery. In order to understand the role of sentimentalism in slave narratives, I will discuss the sentimental novel by Gertrudis...... Gómez de Avellaneda: Sab (the Cuban/Spanish equivalent of Uncle Tom’s Cabin), written between 1836 and 1839 and published 1841 in Spain. I will argue that the sentimentalism of Sab is of a revolutionary kind, based in a conception of natural law and that its aim is a radical transformation of social...... hierarchies. The paper will be divided into three parts: 1. First I will discuss what sentimentalism is and its relation to politics and especially abolitionism in the 19th century. 2. Then I will analyze Sab’s genre trying to establish the different functions of sentimentality, discussing the tragic modes...

  16. Understanding changes in cardiovascular pathophysiology.

    Science.gov (United States)

    Chummun, Harry

    Cardiovascular pathophysiological changes, such as hypertension and enlarged ventricles, reflect the altered functions of the heart and its circulation during ill-health. This article examines the normal and altered anatomy of the cardiac valves, the contractile elements and enzymes of the myocardium, the significance of the different factors associated with cardiac output, and the role of the autonomic nervous system in the heart beat. It also explores how certain diseases alter these functions and result in cardiac symptoms. Nurses can benefit from knowledge of these specific changes, for example, by being able to ask relevant questions in order to ascertain the nature of a patients condition, by being able to take an effective patient history and by being able to read diagnostic results, such as electrocardiograms and cardiac enzyme results. All this will help nurses to promote sound cardiac care based on a physiological rationale.

  17. Moving to understanding and change.

    Science.gov (United States)

    Washington, Deborah

    2010-05-01

    Creating an environment of inclusion for a culturally diverse nursing workforce is complex. The demographic shift in the country forecasted for over a decade has arrived. Today programs set up to recruit and retain multicultural and multilingual nursing staff are important organizational priorities. Employers want to build responsive and welcoming workplaces in which all feel engaged. This requires several things. Leaders must oversee system changes stimulated by a workforce similar to newly emerging cultural groups in their areas of service. The need exists for managers to possess non-ethnocentric management skills and are competent to take charge of teams motivated by a broad range of culture based values and beliefs. Diversity training, mentoring of staff and leadership development are benchmarks of an organization at the "tipping point" of change related to employing a diverse workforce.

  18. Understanding Culture and Influencing Change

    Science.gov (United States)

    2010-03-01

    difference to significantly change the society from a collectivist to individualist culture .42 Pakistan scores fourteen which indicates a strongly...score lower than fifty indicating a more collectivist society. This helps the strategic leader to appreciate the importance class and culture play on...Pakistan which possess strong uncertainty avoidance scores (70) and low individualistic scores (14) - and are collectivists - rules and laws are

  19. Revolutionary Black Culture: The Cultural Arm of Revolutionary Nationalism

    Science.gov (United States)

    Mkalimoto, Ernie

    1969-01-01

    Emphasizes that armed might is not the only form, nor the only necessary form of struggle in Black revolutionary nationalism; that Black poets, actors, writers, and artists, as well as political and military cadres, must unite with the Black masses in one common effort. (RJ)

  20. Climate change 101 : understanding and responding to global climate change

    Science.gov (United States)

    2009-01-01

    To inform the climate change dialogue, the Pew Center on Global Climate Change and the Pew Center on the States have developed a series of brief reports entitled Climate Change 101: Understanding and Responding to Global Climate Change. These reports...

  1. The Revolutionary Chora in Seamus Heaney’s Kite Poetry

    Directory of Open Access Journals (Sweden)

    Hannah Spruce

    2016-03-01

    Full Text Available This paper examines the presence and impact of the Kristevan chora in the kite poetry of Seamus Heaney, demonstrating how the presence of the chora in his final kite poem “A Kite for Aibhín” is used to alter the discursive representation of fatherhood that was handed down to Heaney through symbolic language. The views of Heaney and Kristeva on the revolutionary potential of poetry is analysed alongside Heaney’s poetry to glean an understanding of how poetry has a profound impact on identity and representation. This paper proves that for Heaney poetry afforded weighty individual change, acting as a technological medium through which he could alter language.

  2. Understanding the DSM-5: stasis and change.

    Science.gov (United States)

    Cooper, Rachel

    2018-03-01

    This paper aims to understand the DSM-5 through situating it within the context of the historical development of the DSM series. When one looks at the sets of diagnostic criteria, the DSM-5 is strikingly similar to the DSM-IV. I argue that at this level the DSM has become 'locked-in' and difficult to change. At the same time, at the structural, or conceptual, level there have been radical changes, for example in the definition of 'mental disorder', in the role of theory and of values, and in the abandonment of the multiaxial approach to diagnosis. The way that the DSM-5 was constructed means that the overall conceptual framework of the classification only barely constrains the sets of diagnostic criteria it contains.

  3. Understanding Resistance to Climate Change Resistance.

    Science.gov (United States)

    Coyle, Maureen

    2014-12-01

    Fifty years after the emergence of warnings over the effects of the environmental impacts of industrialization and other conditions of a planet subjugated by humans, we are still entertaining discussions about the existence of the phenomena of climate change. Worse still, we have not checked the behaviors and conditions that exacerbate the rate of environmental destruction. Older people, particularly those who are economically vulnerable, are among those most at risk in disasters, including events resulting from climate change. By applying the "epistemologies of ignorance" outlined by Nancy Tuana, I attempt to understand the rooted ignorance that prevents acceptance of the environmental impact of human kind's unrepentant misuse of the world's natural resources and the refusal to curb the excesses that have lead to environmental damage that has had, and that will continue to have, dire consequences on the planet and for the most vulnerable denizens of Earth. Far from being a pessimistic project of abjection and despair, this article proposes that an examination of climate change denial can provide guidance for the development of a better counter-narrative. © The Author(s) 2015.

  4. Detecting and Understanding Changing Arctic Carbon Emissions

    Science.gov (United States)

    Bruhwiler, L.

    2017-12-01

    Warming in the Arctic has proceeded faster than anyplace on Earth. Our current understanding of biogeochemistry suggests that we can expect feedbacks between climate and carbon in the Arctic. Changes in terrestrial fluxes of carbon can be expected as the Arctic warms, and the vast stores of organic carbon frozen in Arctic soils could be mobilized to the atmosphere, with possible significant impacts on global climate. Quantifying trends in Arctic carbon exchanges is important for policymaking because greater reductions in anthropogenic emissions may be required to meet climate goals. Observations of greenhouse gases in the Arctic and globally have been collected for several decades. Analysis of this data does not currently support significantly changed Arctic emissions of CH4, however it is difficult to detect changes in Arctic emissions because of transport from lower latitudes and large inter-annual variability. Unfortunately, current space-based remote sensing systems have limitations at Arctic latitudes. Modeling systems can help untangle the Arctic budget of greenhouse gases, but they are dependent on underlying prior fluxes, wetland distributions and global anthropogenic emissions. Also, atmospheric transport models may have significant biases and errors. For example, unrealistic near-surface stability can lead to underestimation of emissions in atmospheric inversions. We discuss our current understanding of the Arctic carbon budget from both top-down and bottom-up approaches. We show that current atmospheric inversions agree well on the CH4 budget. On the other hand, bottom-up models vary widely in their predictions of natural emissions, with some models predicting emissions too large to be accommodated by the budget implied by global observations. Large emissions from the shallow Arctic ocean are also inconsistent with atmospheric observations. We also discuss the sensitivity of the current atmospheric network to what is likely small, gradual increases in

  5. TECHNOLOGICAL DRIVERS OF (REVOLUTIONARY CHANGE IN MODERN SOCIETIES AND HOW DEVELOPING COUNTRIES MIGHT PRODUCTIVELY RESPOND TO THEM VIA INTENTIONAL, THOUGHTFUL “LEAPFROGGING”

    Directory of Open Access Journals (Sweden)

    Eric GILDER

    2014-11-01

    Full Text Available Over the time since he was a fresh graduate student in the early 1980s till now, this academic has seen the world being totally transformed from an analogue into a digital “format”. It all started innocently enough with large computers in rooms doing tedious counting and data-tabulating tasks on Hollerith cards while we humans carried on our analogue lives in relative peace. From 1985-1995, the world did change from an (largely unseen tsunami begun from the small waves made by these nascent digital technologies. By 1995, the CD, audio digital recorders and DVD player had replaced earlier technologies. Computers (of a second or third generation had replaced the typewriter; the Soviet bloc and its (long-decaying governance models were only a bad memory (its economic model undone by technologies and demands of the new “third wave” post-industrial knowledge society. Finally, the worldwide web Internet 2.0 was arriving, which would surely change the means and modes of the communicative acts, affecting the economic, political and social/cultural spheres in turn. Using Kenneth Boulding, Marshall McLuhan and Johan Galtung as sage guides, the paper will outline the transformations these technical inventions wrought in the economic, political and cultural spheres in rapid order over the noted decade, considering how the “developed” world has been affected by these changes, bot negatively and positively. Following this, it will briefly consider how the disruptive effects of the digital revolution experienced can be counter-balanced by looking at how “developing” communities and economies have been able to “leap-frog” barriers in how they use digital technologies for both individual and collective humanistic gain.

  6. Revolutionary business trends in supply chain management

    Directory of Open Access Journals (Sweden)

    Mijušković Veljko

    2010-01-01

    Full Text Available Contemporary turbulent business conditions in the era of high technology bring inherent rapid changes. In order to survive, the imperative set upon all market players is not the position of a follower but more of an anticipator and trend setter. These unexpected changes erase existing business models, traditional enterprise paradigms and customary philosophies. A business isolated in its way of seeing operations and unconnected with other strategic constituents within the supply chain is destined to fail. On the other hand, even those businesses that do get involved with contemporary trends are not automatically guaranteed with the market survival. The spirit of change must therefore be deeply integrated within the organization, so that the new 'mantra' could become strategic but also operative driver on all fronts of doing business, at all times. The goal of this paper is to try to illustrate and categorize comprehensive fundamental changes which are more and more present in the modern supply chains. The analysis shows that the spirit of business model changes is not a fiction but reality, thus their deepness truly revolutionizes the functioning of traditional supply chains. The first part of the paper shows actual market situation within the supply chains. 'Kaleidoscope of changes' in the chain shows that its operations have been altered compared to traditional way of doing business, having assimilated the fact that final customers identify multiple dimensions of value while choosing products or services. The market survival demands the perception and possession of all these dimensions. The second part explains the supply chain changes focusing on ten most important trends. Their implementation creates revolutionary effects compared to traditional business matrix. Finally, the third part, identifies key challenges and inhibitors that might emerge during the 'restructuring' of the traditional supply chains, as a real-life situation limitation

  7. Sectarianism, Revolutionary Subjectivity and War in Syria - the case of the peaceful movement

    DEFF Research Database (Denmark)

    Brønd, Thomas Vladimir

    2016-01-01

    Events unfolding in Syria since 2011 have all too often been depicted too simply as a “sectarian war”. Against the backdrop of such accounts, this article investigates the lived revolutionary experience of Syrians active in the peaceful revolutionary movement and the local coordination committees...... of the peaceful movement not only counteract the narratives of the regime. It also offers a window into revolutionary subjectivity and ideology in Syria’s peaceful movement as part of broader social changes occurring in Syria in the context of devastating war and destruction....

  8. Understanding Early Educators' Readiness to Change

    Science.gov (United States)

    Peterson, Shira M.

    2012-01-01

    Researchers in the fields of humanistic psychology, counseling, organizational change, and implementation science have been asking a question that is at the heart of today's early care and education quality improvement efforts: When it comes to changing one's behavior, what makes a person ready to change? Although the concept of readiness to…

  9. Understanding Transfer as Personal Change: Concerns, Intentions, and Resistance

    Science.gov (United States)

    Young, Jeani C.

    2013-01-01

    Adult education is about change. Change in knowledge and understanding. Change in attitudes and beliefs. Change in skills and behaviors. The transfer that adult educators and learners often want to achieve is that change. In situations where transfer equals change, models of change can be useful to describe, support, and predict transfer. This…

  10. Paleoclimates: Understanding climate change past and present

    Science.gov (United States)

    Cronin, Thomas M.

    2010-01-01

    The field of paleoclimatology relies on physical, chemical, and biological proxies of past climate changes that have been preserved in natural archives such as glacial ice, tree rings, sediments, corals, and speleothems. Paleoclimate archives obtained through field investigations, ocean sediment coring expeditions, ice sheet coring programs, and other projects allow scientists to reconstruct climate change over much of earth's history. When combined with computer model simulations, paleoclimatic reconstructions are used to test hypotheses about the causes of climatic change, such as greenhouse gases, solar variability, earth's orbital variations, and hydrological, oceanic, and tectonic processes. This book is a comprehensive, state-of-the art synthesis of paleoclimate research covering all geological timescales, emphasizing topics that shed light on modern trends in the earth's climate. Thomas M. Cronin discusses recent discoveries about past periods of global warmth, changes in atmospheric greenhouse gas concentrations, abrupt climate and sea-level change, natural temperature variability, and other topics directly relevant to controversies over the causes and impacts of climate change. This text is geared toward advanced undergraduate and graduate students and researchers in geology, geography, biology, glaciology, oceanography, atmospheric sciences, and climate modeling, fields that contribute to paleoclimatology. This volume can also serve as a reference for those requiring a general background on natural climate variability.

  11. Critical Revolutionary Pedagogy Spiced by Pedagogical Love

    Science.gov (United States)

    FitzSimmons, Robert; Uusiautti, Satu

    2013-01-01

    The latest incidents demonstrating human beings' inhumanity to their fellow human beings have given impetus to dissect the connection between critical revolutionary pedagogy and the idea of pedagogical love. In this essay we attempt to answer the following questions: How do these two pedagogies complement each other? What can they offer for…

  12. Revolutionary Ecologies: Ecosocialism and Critical Pedagogy

    Science.gov (United States)

    McLaren, Peter; Houston, Donna

    2004-01-01

    In this article, we argue that critical and revolutionary educational praxis is increasingly shaped by and through ecological politics and imaginaries. Indeed, given the pervasiveness of environmental crisis in our everyday lives and vocabularies, we argue that critical educators can no longer ignore questions of ecojustice. In keeping with a…

  13. The understanding of world climate change

    International Nuclear Information System (INIS)

    Petit, M.

    2008-01-01

    After having recalled that the problem of global warming in relationship with human activities has been studied since the end of the nineteenth century and since then by different scientific programs, the author describes how the IPCC's or Intergovernmental Panel on Climate Change's report is produced. He briefly comments how Earth's temperature is determined and the various natural parameters which influence the climate on Earth. He recalls how the IPCC showed the actual influence of human activities, and which changes have actually been observed

  14. Understanding change: Wildfire in Larimer County, Colorado

    Science.gov (United States)

    Hannah Brenkert-Smith; Patricia A. Champ

    2013-01-01

    Wildfire activity continues to plague communities in the American West. Three causes are often identified as key contributors to the wildfire problem: accumulated fuels on public lands due to a history of suppressing wildfires; climate change; and an influx of residents into fire prone areas referred to as the wildland-urban interface (WUI). The latter of these...

  15. Understanding change: Wildfire in Boulder County, Colorado

    Science.gov (United States)

    Hannah Brenkert-Smith; Patricia A. Champ; Amy L. Telligman

    2013-01-01

    Wildfire activity continues to plague communities in the American West. Three causes are often identified as key contributors to the wildfire problem: accumulated fuels on public lands due to a history of suppressing wildfires; climate change; and an influx of residents into fire prone areas referred to as the wildland-urban interface (WUI). The latter of these...

  16. Global Environmental Change : Understanding the Human Dimensions

    National Research Council Canada - National Science Library

    Stern, Paul C; Druckman, Daniel; Young, Oran R; National Research Council; National Academy of Sciences; Stern, Paul C; Druckman, Daniel

    ... on the Human Dimensions of Global Change Commission on the Behavioral and Social Sciences and Education National Research Council NATIONAL ACADEMY PRESS Washington, D.C. 1992 Copyrightthe cannot be not from book, paper however, version for formatting, original authoritative the typesetting-specific the as from created publication files ...

  17. Global environmental change: understanding the human dimensions

    National Research Council Canada - National Science Library

    Stern, Paul C; Young, Oran R; Druckman, Daniel

    ... on the Human Dimensions of Global Change Commission on the Behavioral and Social Sciences and Education National Research Council NATIONAL ACADEMY PRESS Washington, D.C. 1992 Copyrightthe cannot be not from book, paper however, version for formatting, original authoritative the typesetting-specific the as from created publication files ...

  18. Understanding Controversies in Urban Climate Change Adaptation

    DEFF Research Database (Denmark)

    Baron, Nina; Petersen, Lars Kjerulf

    2015-01-01

    This article explores the controversies that exist in urban climate change adaptation and how these controversies influence the role of homeowners in urban adaptation planning. A concrete SUDS project in a housing cooperative in Copenhagen has been used as a case study thereby investigating the m...

  19. Understanding the physics of changing mass phenomena

    NARCIS (Netherlands)

    Ellermeijer, A.L.

    2008-01-01

    Changing mass phenomena, like a falling chain or a bungee jumper, might give surprising results, even for experienced physicists. They have resulted in hot discussions in journals, in which for instance Physics professors claim the impossibility of an acceleration larger then g in case of a bungee

  20. Exploring elementary students’ understanding of energy and climate change

    Directory of Open Access Journals (Sweden)

    Colin BOYLAN

    2008-10-01

    Full Text Available As environmental changes become a significant societal issue, elementary science curriculaneed to develop students’ understanding about the key concepts of energy and climate change.For teachers, developing quality learning experiences involves establishing what theirstudents’ prior understanding about energy and climate change are. A survey was developed toexplore what elementary students know and understand about renewable and non-renewablesources of energy and their relationship to climate change issues. The findings from thissurvey are reported in this paper.

  1. Understanding a Resistance to Change: A Challenge for Universities

    Science.gov (United States)

    Caruth, Gail D.; Caruth, Donald L.

    2013-01-01

    Change is inevitable. Today more than ever the pace of change is accelerating. Where there is organizational change there will be resistance to this change. To deal with the resistance effectively university administrators must understand the nature and causes of resistance to change. Only by dealing effectively with resistance to change can…

  2. Climate changes - To understand and to react

    International Nuclear Information System (INIS)

    2011-01-01

    The first part of this report recalls the definition of the greenhouse effect, comments the climate past variations, outlines that climate changes are already here and that greenhouse effect has a human origin, and discusses the expected impacts during the 21. century. The second part presents the basis of international action in the struggle against climate change, outlines the necessity to strengthen this international action, describes the role of Europe in international negotiations on climate, outlines the need of an international agreement on climate, proposes an overview of the French climate policy (national and local actions), and outlines that some political responses do not match with sustainable development (nuclear energy, agro-fuels, carbon capture and storage, shale gas and oil). The third part indicates how one can compute his own impact on climate, and presents some collective and citizen innovative initiatives in the fields of agriculture and food, of energy, of transports and mobility, and of wastes

  3. The Race To Understand A Changing Planet

    Science.gov (United States)

    Sellers, Piers J.

    2012-01-01

    The Earth's climate is changing rapidly. In some respects, the rate of change is outpacing the predictions of only a few years ago. The challenge to Earth Science is to put forward credible projections of possible future climates so that the public and policy makers can make science-based decisions about energy development strategies. Models, observations and experiments all play strong roles in improving knowledge and increasing confidence in our predictions. The models have progressed from simple, coarse-resolution descriptions of atmospheric dynamics and physics only twenty years ago, to full-up Earth System models (ESMs) that include complete descriptions of the oceans and cryosphere. It has been convincingly argued that such complexity - the construction of realistic "toy" Earth's - is necessary to address the complex processes involved in climate change, including not only the physical atmosphere, oceans and cryosphere, but also the carbon cycle - both its natural and anthropogenic components - and the biosphere. Observations, particularly satellite observations, have more or less kept pace with the demands of the modelers, being able to observe progressively more and different facets of the Earth system, but the global satellite fleet is in need of an overhaul very soon. Lastly, field experiments and process studies confront the models with facts and allow us to develop more sophisticated and accurate satellite data algorithms. The challenges facing our relatively small Earth and planetary science communities are considerable and the stakes are significant. The stakeholders, now numbering 7 billion but soon to be 10 billion, will be relying on our results and capabilitie's to guide them into the future.

  4. The revolutionary importance of coal

    OpenAIRE

    Macfarlane, Alan

    2004-01-01

    Alan Macfarlane discusses the coal revolution, the change from energy harvested from the sun through plants and animals, to the stored carbon energy of millions of years of sunlight. Filmed on a coal heap in Coalbrookdale, where the industrial revolution in England began.

  5. Revolutionary non-migratory migrants

    NARCIS (Netherlands)

    Jonker, M.R.

    2011-01-01

    In the migratory behaviour of the Barnacle Goose Branta leucopsis several changes have

    occurred over the past few decades. Barnacle geese breeding in Russia have delayed the

    commencement of spring migration with approximately one month since the 1980s,

    new

  6. Revolutionary new way to train your brain! New thinking and creativity

    DEFF Research Database (Denmark)

    Jochumsen, Bente Würtz; Holm, Henrik Brøndum

    As our understanding of the brain increases, it brings new insights. The Training Program for New Thinking and creativity is a revolutionary new way to development personal thinking/behavior and organizational culture among eg. OT students, OT practitioner and lecturers. It can be used for creating...... and for maintaining abilities and skills for new thinking - an important part of creativity, innovation and entrepreneurship. A continues training can change the cognitive ability and skills to think new both in the short term as well as for the rest of live as an occupational therapist. The most complex structure...... in the universe lies inside each and every one of us. It is the human brain with billions of neurons. It is still not fully understood by science. The cognitive Training in new thinking occurs relatively rarely for the vast majority of the world population. Therefore, even very little training in new thinking can...

  7. Understanding Breast Changes: A Health Guide for Women

    Science.gov (United States)

    ... and Conditions Understanding Breast Changes: Health Guide for Women can be printed or viewed as a booklet, ... During Your Lifetime That Are Not Cancer Most women have changes in the breasts at different times ...

  8. Endogenous money: the evolutionary versus revolutionary views

    OpenAIRE

    Louis-Philippe Rochon; Sergio Rossi

    2013-01-01

    The purpose of this paper is to shed light on the endogenous nature of money. Contrary to the established post-Keynesian, or evolutionary, view, this paper argues that money has always been endogenous, irrespective of the historical period. Instead of the evolutionary theory of money and banking that can be traced back to Chick (1986), this paper puts forward a revolutionary definition of endogenous money consistent with many aspects of post-Keynesian economics as well as with the monetary ci...

  9. Health Behavior Change Challenge: Understanding Stages of Change

    Science.gov (United States)

    Sullivan, Claire F.

    2011-01-01

    This semester-long activity requires students to reflect on their own strengths and weaknesses in attempting to take on a personally meaningful health behavior change challenge. This assignment affords them the opportunity to take a deeper look at theory and health concepts learned throughout the semester and to see how it has informed their own…

  10. Women in Post-Revolutionary Egypt

    DEFF Research Database (Denmark)

    Nielsen, Mette Toft; Hervik, Peter

    and in drawings. Based on the analysis of this material the reader gets insights into personal experiences, believes and opinions of a diverse group of women in terms of age, economic class, education, geography, culture, religion, ethnicity, marital status, and political orientation. The detail-rich empirical......This book addresses how identity, structures, and agency affect women’s everyday lives in post-revolutionary Egypt. The authors analyse the topic both on a macro- as well as on a micro-level. Through interviews and workshops, women around Egypt express their own experiences in dialogue, in groups...

  11. Public Understanding of Climate Change in the United States

    Science.gov (United States)

    Weber, Elke U.; Stern, Paul C.

    2011-01-01

    This article considers scientific and public understandings of climate change and addresses the following question: Why is it that while scientific evidence has accumulated to document global climate change and scientific opinion has solidified about its existence and causes, U.S. public opinion has not and has instead become more polarized? Our…

  12. Understanding the Changing Planet: Strategic Directions for the Geographical Sciences

    Science.gov (United States)

    National Academies Press, 2010

    2010-01-01

    From the oceans to continental heartlands, human activities have altered the physical characteristics of Earth's surface. With Earth's population projected to peak at 8 to 12 billion people by 2050 and the additional stress of climate change, it is more important than ever to understand how and where these changes are happening. Innovation in the…

  13. The National Educational Technology Plan Doesn't Live up to Its Call for Revolutionary Transformation

    Science.gov (United States)

    Rose, Raymond M.

    2011-01-01

    The National Educational Technology Plan (NETP) calls for the revolutionary transformation of the American educational system. The plan correctly points to the decisions of the late 1800s that still direct educational policy today, and correctly calls the school change efforts evolutionary tinkering. The author, a pioneer in online education…

  14. An empirical perspective for understanding climate change impacts in Switzerland

    Science.gov (United States)

    Henne, Paul; Bigalke, Moritz; Büntgen, Ulf; Colombaroli, Daniele; Conedera, Marco; Feller, Urs; Frank, David; Fuhrer, Jürg; Grosjean, Martin; Heiri, Oliver; Luterbacher, Jürg; Mestrot, Adrien; Rigling, Andreas; Rössler, Ole; Rohr, Christian; Rutishauser, This; Schwikowski, Margit; Stampfli, Andreas; Szidat, Sönke; Theurillat, Jean-Paul; Weingartner, Rolf; Wilcke, Wolfgan; Tinner, Willy

    2018-01-01

    Planning for the future requires a detailed understanding of how climate change affects a wide range of systems at spatial scales that are relevant to humans. Understanding of climate change impacts can be gained from observational and reconstruction approaches and from numerical models that apply existing knowledge to climate change scenarios. Although modeling approaches are prominent in climate change assessments, observations and reconstructions provide insights that cannot be derived from simulations alone, especially at local to regional scales where climate adaptation policies are implemented. Here, we review the wealth of understanding that emerged from observations and reconstructions of ongoing and past climate change impacts in Switzerland, with wider applicability in Europe. We draw examples from hydrological, alpine, forest, and agricultural systems, which are of paramount societal importance, and are projected to undergo important changes by the end of this century. For each system, we review existing model-based projections, present what is known from observations, and discuss how empirical evidence may help improve future projections. A particular focus is given to better understanding thresholds, tipping points and feedbacks that may operate on different time scales. Observational approaches provide the grounding in evidence that is needed to develop local to regional climate adaptation strategies. Our review demonstrates that observational approaches should ideally have a synergistic relationship with modeling in identifying inconsistencies in projections as well as avenues for improvement. They are critical for uncovering unexpected relationships between climate and agricultural, natural, and hydrological systems that will be important to society in the future.

  15. Understanding and managing organizational change: implications for public health management.

    Science.gov (United States)

    Thompson, Jon M

    2010-01-01

    Managing organizational change has become a significant responsibility of managers. Managing the change process within public health organizations is important because appropriately and systematically managing change is linked to improved organizational performance. However, change is difficult and the change process poses formidable challenges for managers. Managers themselves face increased pressure to respond to environmental influences and provide the necessary leadership to their organizations in the change process. In fact, managing organizational change has become a key competency for healthcare managers. This article addresses the important topic of organizational change in public health organizations. It provides a conceptual foundation for understanding organizational change and its relationship to healthcare organizational performance, and then discusses the types and nature of change, using some examples and evidence from those organizations that have successfully managed change. A framework for guiding public health managers in the change management process is provided. The article concludes with suggested management competencies to establish a change-oriented organization with the culture and capacity for change.

  16. Einstein's Revolutionary Light-Quantum Hypothesis

    Science.gov (United States)

    Stuewer, Roger H.

    2005-05-01

    The paper in which Albert Einstein proposed his light-quantum hypothesis was the only one of his great papers of 1905 that he himself termed ``revolutionary.'' Contrary to widespread belief, Einstein did not propose his light-quantum hypothesis ``to explain the photoelectric effect.'' Instead, he based his argument for light quanta on the statistical interpretation of the second law of thermodynamics, with the photoelectric effect being only one of three phenomena that he offered as possible experimental support for it. I will discuss Einstein's light-quantum hypothesis of 1905 and his introduction of the wave-particle duality in 1909 and then turn to the reception of his work on light quanta by his contemporaries. We will examine the reasons that prominent physicists advanced to reject Einstein's light-quantum hypothesis in succeeding years. Those physicists included Robert A. Millikan, even though he provided convincing experimental proof of the validity of Einstein's equation of the photoelectric effect in 1915. The turning point came after Arthur Holly Compton discovered the Compton effect in late 1922, but even then Compton's discovery was contested both on experimental and on theoretical grounds. Niels Bohr, in particular, had never accepted the reality of light quanta and now, in 1924, proposed a theory, the Bohr-Kramers-Slater theory, which assumed that energy and momentum were conserved only statistically in microscopic interactions. Only after that theory was disproved experimentally in 1925 was Einstein's revolutionary light-quantum hypothesis generally accepted by physicists---a full two decades after Einstein had proposed it.

  17. Revolutionary Love at Work in an Arctic School with Conflicts

    Science.gov (United States)

    Lanas, Maija; Zembylas, Michalinos

    2015-01-01

    This paper explores how "revolutionary love" may be a viable response in a teacher's pedagogical practices. To do so, we present an in-depth case study of one teacher in a reindeer herding village in Finnish rural north. The paper asks what does revolutionary love mean in teaching practice and what distinguishes loving from non-loving…

  18. A dance on contrasting platforms: African tradition and revolutionary ...

    African Journals Online (AJOL)

    ... (1963: 255) clarion call that “we must invent”, that “we must work out new concepts, and try to set afoot a new man”, while recognizing (and creatively appropriating) “the sometimes prodigious thesis which Europe has put forward.” Key words: Esiaba Irobi; Nigerian theatre; revolutionary aesthetics; revolutionary violence.

  19. Understanding and Representing Changing Work Structures and Practices through Art

    Science.gov (United States)

    Wieland, Stacey M. B.

    2018-01-01

    Courses: Organizational Communication, Advanced Organizational Communication, Organizing Work, Management/Organizational History. Objectives: This activity will help students to understand major shifts in the organization of work and creatively represent changing work structures and practices. An optional follow-up assignment is included. A…

  20. Promoting Conceptual Change in First Year Students' Understanding of Evaporation

    Science.gov (United States)

    Costu, Bayram; Ayas, Alipasa; Niaz, Mansoor

    2010-01-01

    We constructed the PDEODE (Predict-Discuss-Explain-Observe-Discuss-Explain) teaching strategy, a variant of the classical POE (Predict-Observe-Explain) activity, to promote conceptual change, and investigated its effectiveness on student understanding of the evaporation concept. The sample consisted of 52 first year students in a primary science…

  1. Energy statistics of pre-revolutionary Russia

    Directory of Open Access Journals (Sweden)

    N. S. Simonov

    2017-01-01

    Full Text Available The article is devoted to the problem of creation and development of the energy statistics of the Russian Empire of the initial stage of electrification and the formation of the energy economy, which is related to: 1 the economic upsurge of the 1890s; 2 the new economic recovery of 1907–1913 and 3 the militarization of industry in 1914–1916. The real technical and economic indicators and complex statistical data of the pre-revolutionary electric power industry were either hushed up or deliberately distorted during the Soviet era. Even in the encyclopaedic literature it was considered that pre-revolutionaryRussia“was on one of the last places in the world” for the production of electricity. The author analyzes statistical surveys (censuses of the manufacturing industry for 1900 and 1908 (the “varzar censuses”, which gave the first material on the state of its energy sector, namely: the composition, quantity and power of primary engines and electric motors. For the first time in historiography, the data of the “energy censuses” of the Ministry of Finance for 1905 and 1913 on the number and capacity of central public power stations and private power stations (block stations of industrial enterprises, organizations and institutions are cited. The data of the census were conducted with the participation of the apparatus of factory and factory inspections in 1906 and in1916 inall provinces of the Russian Empire, with the exception of six provinces of the frontline zone. A lot of work was done to record electricity production / consumption, which was conducted by the Russian electrotechnical community. According to incomplete data published in 1917 by the Secretariat of the Standing Committee of the VII All-Russia Electrotechnical Congress, from 1905 to 1913 (that is, for 8 years the total number of power stations in the Russian Empire increased by 1.7 times, and the amount of electricity produced by them Has grown in 3,8 times. The

  2. Understanding Global Change: Frameworks and Models for Teaching Systems Thinking

    Science.gov (United States)

    Bean, J. R.; Mitchell, K.; Zoehfeld, K.; Oshry, A.; Menicucci, A. J.; White, L. D.; Marshall, C. R.

    2017-12-01

    The scientific and education communities must impart to teachers, students, and the public an understanding of how the various factors that drive climate and global change operate, and why the rates and magnitudes of these changes related to human perturbation of Earth system processes today are cause for deep concern. Even though effective educational modules explaining components of the Earth and climate system exist, interdisciplinary learning tools are necessary to conceptually link the causes and consequences of global changes. To address this issue, the Understanding Global Change Project at the University of California Museum of Paleontology (UCMP) at UC Berkeley developed an interdisciplinary framework that organizes global change topics into three categories: (1) causes of climate change, both human and non-human (e.g., burning of fossil fuels, deforestation, Earth's tilt and orbit), (2) Earth system processes that shape the way the Earth works (e.g., Earth's energy budget, water cycle), and (3) the measurable changes in the Earth system (e.g., temperature, precipitation, ocean acidification). To facilitate student learning about the Earth as a dynamic, interacting system, a website will provide visualizations of Earth system models and written descriptions of how each framework topic is conceptually linked to other components of the framework. These visualizations and textual summarizations of relationships and feedbacks in the Earth system are a unique and crucial contribution to science communication and education, informed by a team of interdisciplinary scientists and educators. The system models are also mechanisms by which scientists can communicate how their own work informs our understanding of the Earth system. Educators can provide context and relevancy for authentic datasets and concurrently can assess student understanding of the interconnectedness of global change phenomena. The UGC resources will be available through a web-based platform and

  3. Conclusions, synthesis, and future directions: understanding sources of population change

    Science.gov (United States)

    Esler, Daniel N.; Flint, Paul L.; Derksen, Dirk V.; Savard, Jean-Pierre L.; Eadie, John M.

    2015-01-01

    The material in this volume reflects the burgeoning interest in sea ducks, both as study species with compelling and unique ecological attributes and as taxa of conservation concern. In this review, we provide perspective on the current state of sea duck knowledge by highlighting key findings in the preceding chapters that are of particular value for understanding or influencing population change. We also introduce a conceptual model that characterizes links among topics covered by individual chapters and places them in the context of demographic responses. Finally, we offer recommendations for areas of future research that we suggest will have importance for understanding and managing sea duck population dynamics.

  4. Local understanding of forest conservation in land use change dynamics

    DEFF Research Database (Denmark)

    Shaleh, Muhammad Adha; Guth, Miriam Karen; Rahman, Syed Ajijur

    2016-01-01

    Forest (SEPPSF), Malaysia. Nine in-depth interviews were conducted with Orang Asli Jakun living in SEPPSF using open-ended questions. Local communities have positive perspectives toward the forest conservation program, despite massive environmental changes in their living landscape. This study suggests......The success of local forest conservation program depends on a critical appreciation of local communities. Based on this understanding, the present study aims to explore people’s perspective of forest conservation in a context of changes in their living landscape at South East Pahang Peat Swamp...

  5. Understanding climate change adaptation and adaptive capacity: synthesis report

    Energy Technology Data Exchange (ETDEWEB)

    Patino, L. [Policy Research Initiative, Government of Canada, Ottawa, ON (Canada)

    2010-09-15

    In 2007, the Natural Resources Canada (NRCan) Climate Change Impacts and Adaptation Division (CCIAD) offered its support to research projects that were involved in understanding and improving adaptation and adaptive capacity and contributed to climate change decision-making and policy development in Canada. 20 research projects were commissioned by the CCIAD. With the collaboration of NRCan, the principal findings raised by the commissioned projects were synthesized by the Policy Research Initiative (PRI). Common themes and main messages are introduced in this synthesis report, and policy and program aspects that promote adaptive capacity to climate change in Canada are identified. Common themes and important messages emerging from the research projects, as well as the processes and barriers to adaptation and adaptive capacity identified in the commissioned projects, were discussed during a workshop held in Ottawa in 2009. Five main themes and four common barriers to adaptation were found. 25 refs.

  6. Revolutionary Transformation in the Macro-Regional Modernities

    Czech Academy of Sciences Publication Activity Database

    Hrubec, Marek

    2015-01-01

    Roč. 11, č. 6 (2015), s. 79-91 ISSN 1841-0464 Institutional support: RVO:67985955 Keywords : macro-regional * modernities * revolutionary transformations * intercultural * global Subject RIV: AA - Philosophy ; Religion

  7. Revolutionary Pressures and Social Movements in Nigeria: The ...

    African Journals Online (AJOL)

    User

    2011-05-20

    May 20, 2011 ... of revolutionary pressures vis-a-vis social movements in Nigeria in general and the ... material conditions, the dynamic character of reality and the .... (EFCC) and the Independent Corrupt Practices Commission (I.C.P.C) are.

  8. The essential interactions between understanding climate variability and climate change

    Science.gov (United States)

    Neelin, J. D.

    2017-12-01

    Global change is sometimes perceived as a field separate from other aspects of atmospheric and oceanic sciences. Despite the long history of communication between the scientific communities studying global change and those studying interannual variability and weather, increasing specialization and conflicting societal demands on the fields can put these interactions at risk. At the same time, current trajectories for greenhouse gas emissions imply substantial adaptation to climate change will be necessary. Instead of simply projecting effects to be avoided, the field is increasingly being asked to provide regional-level information for specific adaptation strategies—with associated requirements for increased precision on projections. For extreme events, challenges include validating models for rare events, especially for events that are unprecedented in the historical record. These factors will be illustrated with examples of information transfer to climate change from work on fundamental climate processes aimed originally at timescales from hours to interannual. Work to understand the effects that control probability distributions of moisture, temperature and precipitation in historical weather can yield new factors to examine for the changes in the extremes of these distributions under climate change. Surprisingly simple process models can give insights into the behavior of vastly more complex climate models. Observation systems and model ensembles aimed at weather and interannual variations prove valuable for global change and vice versa. Work on teleconnections in the climate system, such as the remote impacts of El Niño, is informing analysis of projected regional rainfall change over California. Young scientists need to prepare to work across the full spectrum of climate variability and change, and to communicate their findings, as they and our society head for future that is more interesting than optimal.

  9. The Revolutionary Vertical Lift Technology (RVLT) Project

    Science.gov (United States)

    Yamauchi, Gloria K.

    2018-01-01

    The Revolutionary Vertical Lift Technology (RVLT) Project is one of six projects in the Advanced Air Vehicles Program (AAVP) of the NASA Aeronautics Research Mission Directorate. The overarching goal of the RVLT Project is to develop and validate tools, technologies, and concepts to overcome key barriers for vertical lift vehicles. The project vision is to enable the next generation of vertical lift vehicles with aggressive goals for efficiency, noise, and emissions, to expand current capabilities and develop new commercial markets. The RVLT Project invests in technologies that support conventional, non-conventional, and emerging vertical-lift aircraft in the very light to heavy vehicle classes. Research areas include acoustic, aeromechanics, drive systems, engines, icing, hybrid-electric systems, impact dynamics, experimental techniques, computational methods, and conceptual design. The project research is executed at NASA Ames, Glenn, and Langley Research Centers; the research extensively leverages partnerships with the US Army, the Federal Aviation Administration, industry, and academia. The primary facilities used by the project for testing of vertical-lift technologies include the 14- by 22-Ft Wind Tunnel, Icing Research Tunnel, National Full-Scale Aerodynamics Complex, 7- by 10-Ft Wind Tunnel, Rotor Test Cell, Landing and Impact Research facility, Compressor Test Facility, Drive System Test Facilities, Transonic Turbine Blade Cascade Facility, Vertical Motion Simulator, Mobile Acoustic Facility, Exterior Effects Synthesis and Simulation Lab, and the NASA Advanced Supercomputing Complex. To learn more about the RVLT Project, please stop by booth #1004 or visit their website at https://www.nasa.gov/aeroresearch/programs/aavp/rvlt.

  10. Middle School Students' Understandings About Anthropogenic Climate Change

    Science.gov (United States)

    Golden, B. W.

    2013-12-01

    they discussed the validation of their beliefs. That is, we argue that the unit, and the emphases contained within the unit, resulted in the "epistemic scaffolding" of their ideas, to the extent that they shifted from arguing from anecdotes to arguing based on other types of data, especially from line graphs. Additionally, we found that students' understandings of climate change were tied to their ontological constructions of the subject matter, i.e., many perceived climate change as just another environmentally sensitive issue such as littering and pollution, and were therefore limited in their ability to understand anthropogenic climate change in the vast and robust sense meant by current scientific consensus. Given these known difficulties, it is critical to explore further research of this sort in order to better understand what students are actually thinking, and how that thinking is prone to change, modification, or not. Subsequently, K-12 strategies might be better designed, if that is indeed a priority of US/Western society.

  11. Understanding Recent Mass Balance Changes of the Greenland Ice Sheet

    Science.gov (United States)

    vanderVeen, Cornelius

    2003-01-01

    The ultimate goal of this project is to better understand the current transfer of mass between the Greenland Ice Sheet, the world's oceans and the atmosphere, and to identify processes controlling the rate of this transfer, to be able to predict with greater confidence future contributions to global sea level rise. During the first year of this project, we focused on establishing longer-term records of change of selected outlet glaciers, reevaluation of mass input to the ice sheet and analysis of climate records derived from ice cores, and modeling meltwater production and runoff from the margins of the ice sheet.

  12. Towards more eclectic understandings of energy demand and change

    DEFF Research Database (Denmark)

    Jensen, Charlotte Louise; Quitzau, Maj-Britt

    2017-01-01

    the strategic work carried out in a particular case of energy renovation seems to have involved: 1) acknowledgment of the need for reconfiguring bundles of practices, 2) actively enrolling different actors in the reconfiguring of bundles of practices, and 3) basing new practice arrangements......, we explore theoretical understandings of practices and translations as a means to illustrate how certain engagements with strategic work aimed at reconfiguring bundles of practices enable a different approach to establishing momentum for change through planning interventions. We illustrate how......’ performance....

  13. Understanding the school 'climate': secondary school children and climate change

    International Nuclear Information System (INIS)

    Kovacs, Susan; Bernier, Sandrine; Blanchet, Aymeric; Derkenne, Chantal; Clement, Florence; Petitjean, Leslie

    2012-01-01

    This interdisciplinary study analyzes the production, circulation and reception of messages on climate change in secondary schools in France. The objective is to understand how political and educational policy initiatives influence the ways in which schools contribute to creating youngsters' perceptions and opinions about climate change. In order to study the conditions of production and reception of information about climate change, a survey was conducted in four French secondary schools, in the 'Bas Rhin' and 'Nord' departments, and local political actors in each department were interviewed. The cross disciplinary analytical and methodological approach uses the tools of sociological inquiry, information science, and political science: questionnaires and interviews were conducted with members of the educational and governmental communities of each school and department, semiotic and discursive analyses of corpuses of documents were carried out, in order to characterize documents used by students and teachers at school or in more informal contexts; the nature and extent of the relations between the political contexts and school directives and programs were also discussed. This interdisciplinary approach, combining sociological, communicational, and political methods, was chosen in response to the hypothesis that three types of variables (social, communicational and political) contribute to the structuring and production of messages about climate change in schools. This report offers a contextualized overview of activities developed within the four secondary schools to help sensitize children to the risks associated with climate change. A study of the networks of individuals (teachers, staff, members of associations, etc.) created in and around the school environment is presented. The degree of involvement of these actors in climate change programs is analyzed, as it is related to their motives and objectives, to the school discipline taught, and to the position

  14. DOW AGROSCIENCES TODAY AND NEW REVOLUTIONARY SOLUTIONS

    Directory of Open Access Journals (Sweden)

    Slavko Vujević

    2008-09-01

    Full Text Available Dow AgroSciences LLC, based in Indianapolis, Indiana, USA, is a top tier agricultural company providing innovative crop protection, pest and vegetation management, seed, and agricultural biotechnology solutions to serve the world's growing population. Global sales for Dow AgroSciences, a wholly owned subsidiary of The Dow Chemical Company, are $3.8 billion. The company's roots in the agricultural marketplace date back to 1950 as the agricultural unit of The Dow Chemical Company and as part of Eli Lilly and Company's agricultural business. In 1989, the DowElanco joint venture was formed, and the company continued to develop new products and acquire strategic businesses. DowElanco acquired majority ownership in Mycogen Seeds in 1996; in 1997, The Dow Chemical Company acquired 100 percent of DowElanco and the company was renamed Dow AgroSciences. Other significant acquisitions include acetochlor herbicide, Cargill Hybrid Seeds, several Brazilian seed companies and the agricultural chemicals business of Rohm and Haas. Dow AgroSciences is positioned for the future through focused implementation of its strategy which revolves around productivity, portfolio management and innovation. This focus allows the company to grow through an ambitious innovation program that maximizes the products being sold today and creates new, revolutionary solutions that will surprise customers in the future. D Dow AgroSciences is committed to sustainable chemistry and has a competitive advantage in our natural products discovery capability. We've won a prestigious award for technical innovation incorporating "green" chemistry principles into chemical design, manufacture and use. Dow AgroSciences offers a full range of seeds for corn, sunflowers, canola, cotton, soybeans and alfalfa. In addition, we have developed seeds specifically bred for nutritional quality. Dow AgroSciences uses conventional breeding techniques and tools of biotechnology to produce oils that are low in

  15. General Chemistry Students' Understanding of Climate Change and the Chemistry Related to Climate Change

    Science.gov (United States)

    Versprille, Ashley N.; Towns, Marcy H.

    2015-01-01

    While much is known about secondary students' perspectives of climate change, rather less is known about undergraduate students' perspectives. The purpose of this study is to investigate general chemistry students' understanding of the chemistry underlying climate change. Findings that emerged from the analysis of the 24 interviews indicate that…

  16. Global environmental change: local perceptions, understandings, and explanations

    Directory of Open Access Journals (Sweden)

    Aili Pyhälä

    2016-09-01

    Full Text Available Global environmental change (GEC is an increasingly discussed phenomenon in the scientific literature as evidence of its presence and impacts continues to grow. Yet, while the documentation of GEC is becoming more readily available, local perceptions of GEC - particularly in small-scale societies - and preferences about how to deal with it, are still largely overlooked. Local knowledge and perceptions of GEC are important in that agents make decisions (including on natural resource management based on individual perceptions. We carried out a systematic literature review that aims to provide an exhaustive state-of-the-art of the degree to and manner in which the study of local perceptions of change are being addressed in GEC research. We reviewed 126 articles found in peer-reviewed journals (between 1998 and 2014 that address local perceptions of GEC. We used three particular lenses of analysis that are known to influence local perceptions, namely (i cognition, (ii culture and knowledge, and (iii possibilities for adaptation.We present our findings on the geographical distribution of the current research, the most common changes reported, perceived drivers and impacts of change, and local explanations and evaluations of change and impacts. Overall, we found the studies to be geographically biased, lacking methodological reporting, mostly theory based with little primary data, and lacking of indepth analysis of the psychological and ontological influences in perception and implications for adaptation. We provide recommendations for future GEC research and propose the development of a "meta-language" around adaptation, perception, and mediation to encourage a greater appreciation and understanding of the diversity around these phenomena across multiple scales, and improved codesign and facilitation of locally relevant adaptation and mitigation strategies.

  17. Can pictures speak a thousand words in understanding climate change?

    Science.gov (United States)

    Walton, P.

    2017-12-01

    Pictures are able to engage, inspire and educate people in a way that the spoken or written word cannot, and with 21st Century technology we now have even more ways to present images. Researchers and campaigners working in climate change have used the power of images to great effect, bringing the issue of a warming planet into stark relief through iconic scenes such as the forlorn polar bear adrift on an iceberg. Whilst undeniably successful, this image has now become passé and invisible necessitating the scientific community to identify new ways to engage and educate the general public. This paper reports on a new high resolution visualisation app that has been developed by the European Space Agency to illustrate the change over time of a number of climate variables. Data, collected via satellite Earth observations, have been rendered into visually stunning animations that can be interrogated in a number of ways to allow the user to understand the spatial and temporal changes of that variable. But is it enough? Can it ever be that all that glisters really is gold?

  18. Synthesizing International Understanding of Changes in the Arctic Hydrological System

    Science.gov (United States)

    Pundsack, J. W.; Vorosmarty, C. J.; Hinzman, L. D.

    2009-12-01

    There are several notable gaps in our current level of understanding of Arctic hydrological systems. At the same time, rapidly emerging data sets, technologies, and modeling resources provide us with an unprecedented opportunity to move substantially forward. The Arctic Community-Wide Hydrological Analysis and Monitoring Program (Arctic-CHAMP), funded by NSF/ARCSS, was established to initiate a major effort to improve our current monitoring of water cycle variables, and to foster collaboration with the many relevant U.S. and international arctic research initiatives. These projects, funded under ARCSS through the ‘Freshwater Integration (FWI) study’, links CHAMP, the Arctic/Subarctic Ocean Fluxes (ASOF) Programme, and SEARCH. As part of the overall synthesis and integration efforts of the NSF-ARCSS Freshwater Integration (FWI) study, the program carried-out a major International Synthesis Capstone Workshop in Fall 2009 as an International Polar Year (IPY) affiliated meeting. The workshop, "Synthesizing International Understanding of Changes in the Arctic Hydrological System,” was held 30 September to 4 October 2009 in Stockholm at the Beijer Auditorium of the Royal Swedish Academy. The workshop was sponsored by the NSF-ARCSS Arctic-CHAMP Science Management Office (City College of New York / Univ. of New Hampshire), the International Study of Arctic Change (ISAC), and the International Arctic Research Center (IARC; Univ. of Alaska Fairbanks). The overarching goals of the meeting were to stage a post-IPY lessons-learned workshop with co-equal numbers of FWI, IPY, and ICARP-II researchers, using insights from recent scientific findings, data, and strategies to afford synthesis. The workshop aimed to: (1) take stock of recent advances in our understanding of changes in the Arctic hydrological system; (2) identify key remaining research gaps / unanswered questions; and (3) gather insight on where to focus future research efforts/initiatives (nationally and

  19. Papers of the CWRA climate change symposium : understanding climate change impacts on Manitoba's water resources

    International Nuclear Information System (INIS)

    2003-01-01

    This symposium provided an opportunity for discussions on climate change issues with particular reference to the impacts on Manitoba's water resources. The presentations addressed issues of importance to governments, scientists, academics, managers, consultants and the general public. Topics of discussion ranged from climate change impacts on water quality, wetlands, hydropower, fisheries and drought, to adaptation to climate change. Recent advances in global and regional climate modelling were highlighted along with paleo-environmental indicators of climate change. The objective was to provide a better understanding of the science of climate change. The conference featured 16 presentations of which 1 was indexed separately for inclusion in this database. refs., tabs., figs

  20. Towards a Better Understanding of Climate Change Negotiations

    Directory of Open Access Journals (Sweden)

    Bryndís Arndal Woods

    2012-12-01

    Full Text Available The bulk of environmental economics literature applies non-cooperative game theory to examine the stability of International Environmental Agreements. Recently, a new trend has emerged in the literature whereby scholars use modified economic approaches to better account for ‘reality’ as such. This article builds upon the work of Hugh Ward, Frank Grundig and Ethan Zorick who conducted a mixed-method analysis to create a model of international climate change negotiations which could explain why policy change has been minimal in this issue area. The purpose of this article is to further develop the mixed-method approach in order to gain a better understanding of international climate change negotiations. Using the progression of the 2011 Durban negotiation session as our raw data, we demonstrate the usefulness of conducting qualitative and quantitative analyses simultaneously to best represent reality. Content and discourse analyses are applied to the Durban negotiations to identify the properties of the underlying game. The results are applied to the future of the negotiations in order to identify trends which need to be addressed to reach more progressive outcomes in the future. The main results of the qualitative analyses of the Durban negotiations included that players had modest expectations at the outset of the negotiations, which influenced the issues they addressed. The quantitative analysis demonstrated that players achieved a high degree of success at Durban; all players achieved their desired outcomes on at least half of the issues they addressed. Finally, the mixed-method approach identified important trends from the negotiations, most importantly the cracks exposed within the BASIC bloc and the role of the ‘middle ground’ alliance.

  1. Understanding dynamic changes in live cell adhesion with neutron reflectometry

    Science.gov (United States)

    Junghans, Ann

    Understanding the structure and functionality of biological systems on a nanometer-resolution and short temporal scales is important for solving complex biological problems, developing innovative treatment, and advancing the design of highly functionalized biomimetic materials. For example, adhesion of cells to an underlying substrate plays a crucial role in physiology and disease development, and has been investigated with great interest for several decades. In the talk, we would like to highlight recent advances in utilizing neutron scattering to study bio-related structures in dynamic conditions (e . g . under the shear flow) including in-situ investigations of the interfacial properties of living cells. The strength of neutron reflectometry is its non-pertubative nature, the ability to probe buried interfaces with nanometer resolution and its sensitivity to light elements like hydrogen and carbon. That allows us to study details of cell - substrate interfaces that are not accessible with any other standard techniques. We studied the adhesion of human brain tumor cells (U251) to quartz substrates and their responses to the external mechanical forces. Such cells are isolated within the central nervous system which makes them difficult to reach with conventional therapies and therefore making them highly invasive. Our results reveal changes in the thickness and composition of the adhesion layer (a layer between the cell lipid membrane and the quartz substrate), largely composed of hyaluronic acid and associated proteoglycans, when the cells were subjected to shear stress. Further studies will allow us to determine more conditions triggering changes in the composition of the bio-material in the adhesion layer. This, in turn, can help to identify changes that correlate with tumor invasiveness, which can have significant medical impact for the development of targeted anti-invasive therapies.

  2. Understanding Coral's Short-term Adaptive Ability to Changing Environment

    Science.gov (United States)

    Tisthammer, K.; Richmond, R. H.

    2016-02-01

    Corals in Maunalua Bay, Hawaii are under chronic pressures from sedimentation and terrestrial runoffs containing multiple pollutants as a result of large scale urbanization that has taken place in the last 100 years. However, some individual corals thrive despite the prolonged exposure to these environmental stressors, which suggests that these individuals may have adapted to withstand such stressors. A recent survey showed that the lobe coral Porites lobata from the `high-stress' nearshore site had an elevated level of stress ixnduced proteins, compared to those from the `low-stress,' less polluted offshore site. To understand the genetic basis for the observed differential stress responses between the nearshore and offshore P. lobata populations, an analysis of the lineage-scale population genetic structure, as well as a reciprocal transplant experiment were conducted. The result of the genetic analysis revealed a clear genetic differentiation between P. lobata from the nearshore site and the offshore site. Following the 30- day reciprocal transplant experiment, protein expression profiles and other stress-related physiological characteristics were compared between the two populations. The experimental results suggest that the nearshore genotype can cope better with sedimentation/pollutants than the offshore genotype. This indicates that the observed genetic differentiation is due to selection for tolerance to these environmental stressors. Understanding the little-known, linage-scale genetic variation in corals offers a critical insight into their short-term adaptive ability, which is indispensable for protecting corals from impending environmental and climate change. The results of this study also offer a valuable tool for resource managers to make effective decisions on coral reef conservation, such as designing marine protected areas that incorporate and maintain such genetic diversity, and establishing acceptable pollution run-off levels.

  3. Twenty years of revolutionary democratic Ethiopia, 1991 to 2011

    DEFF Research Database (Denmark)

    Hagmann, Tobias; Abbink, Jon

    2011-01-01

    This paper introduces a special issue of the Journal of Eastern African Studies devoted to a review of Ethiopia's 20 years of “revolutionary democracy”. The collection brings together 11 articles exploring differing aspects of Ethiopia's political experience since 1991. This introduction begins...... with a short summary of these 11 papers, but then moves to a substantive review of Ethiopia's political history over the past two decades, featuring consideration of the extent of transformation and continuity under the ruling Ethiopian Peoples' Revolutionary Democratic Front (EPRDF), the importance...

  4. Understanding and Improving Ocean Mixing Parameterizations for modeling Climate Change

    Science.gov (United States)

    Howard, A. M.; Fells, J.; Clarke, J.; Cheng, Y.; Canuto, V.; Dubovikov, M. S.

    2017-12-01

    Climate is vital. Earth is only habitable due to the atmosphere&oceans' distribution of energy. Our Greenhouse Gas emissions shift overall the balance between absorbed and emitted radiation causing Global Warming. How much of these emissions are stored in the ocean vs. entering the atmosphere to cause warming and how the extra heat is distributed depends on atmosphere&ocean dynamics, which we must understand to know risks of both progressive Climate Change and Climate Variability which affect us all in many ways including extreme weather, floods, droughts, sea-level rise and ecosystem disruption. Citizens must be informed to make decisions such as "business as usual" vs. mitigating emissions to avert catastrophe. Simulations of Climate Change provide needed knowledge but in turn need reliable parameterizations of key physical processes, including ocean mixing, which greatly impacts transport&storage of heat and dissolved CO2. The turbulence group at NASA-GISS seeks to use physical theory to improve parameterizations of ocean mixing, including smallscale convective, shear driven, double diffusive, internal wave and tidal driven vertical mixing, as well as mixing by submesoscale eddies, and lateral mixing along isopycnals by mesoscale eddies. Medgar Evers undergraduates aid NASA research while learning climate science and developing computer&math skills. We write our own programs in MATLAB and FORTRAN to visualize and process output of ocean simulations including producing statistics to help judge impacts of different parameterizations on fidelity in reproducing realistic temperatures&salinities, diffusivities and turbulent power. The results can help upgrade the parameterizations. Students are introduced to complex system modeling and gain deeper appreciation of climate science and programming skills, while furthering climate science. We are incorporating climate projects into the Medgar Evers college curriculum. The PI is both a member of the turbulence group at

  5. Revolutionary Intelligence: The Expanding Intelligence Role of the Iranian Revolutionary Guard Corps

    Directory of Open Access Journals (Sweden)

    Udit Banerjea

    2015-09-01

    Full Text Available The Iranian Revolutionary Guard Corps (IRGC is a military and paramilitary organization that is meant to defend the ideals of the Iranian Islamic Revolution in 1979. Since its formation, the IRGC has grown in influence and its intelligence role has expanded. This paper examines the role of the IRGC in Iran’s intelligence system through a comprehensive analysis of the organization of the IRGC’s intelligence arm, along with its operations and capabilities. In doing so, the scope, objectives, resources, customers, and sponsors of the IRGC’s intelligence activities are also analyzed. Additionally, this paper explores how the IRGC interacts with the government of Iran, the Ministry of Intelligence and Security (MOIS, other key internal stakeholders, and foreign client organizations. A key focus of this analysis is the evolution of the relationship between the IRGC and the MOIS and the growing influence of the IRGC in Iran’s intelligence community over the last decade. The paper concludes that the IRGC has now eclipsed the MOIS within Iran’s intelligence community and is one of the most powerful institutions in Iranian politics today, using its intelligence activities as its key means of maintaining power and influence within the country.

  6. Social networks as anti-revolutionary forces: Facebook and political ...

    African Journals Online (AJOL)

    The much celebrated Arab Spring has championed social media as an organizing force. This led to the celebration of a new revolutionary force for people seeking more justice and accountability from their leaders. Maghreb became the example to follow for others across Africa especially given the central role youth played ...

  7. 5. Food and Cooking in Revolutionary and Soviet Russia

    Directory of Open Access Journals (Sweden)

    Daniela Steila

    2016-04-01

    Full Text Available In tsarist Russia, with both indigenous and foreign cuisine being very popular, since the middle of the 19th century the figure of the revolutionary took ascetic features. The 1917 revolution saw a prevalence of the scientific aspects of nutrition and its collective organization over any ‘culinary’ consideration. Nevertheless, during the 1920s, some cookbooks adapted pre-revolutionary culinary traditions to post- revolutionary conditions. But again and again the country would meet dramatic situations as far as food production and distribution were concerned. At the end of the Twenties, the system of communal dining faced a serious crisis, when local governement was forced to help starving people rather than organize collective canteens. Alongside with industrialization of food production (in which A. Mikojan had a crucial role, nutrition was again considered as a pleasure in the 1930s, when Stalinism started to present the Soviet society as accomplished. Often disregarded in Russian revolutionary movements, food became an important element in the propaganda of the Soviet way of life.

  8. In the Age of Changes: Rebellion, Insurrection and Revolution in the 17th – Early 20th Centuries in the Russian Province: All-Russian Conference to the 100th Anniversary of 1917 Revolutionary Events

    Directory of Open Access Journals (Sweden)

    Denis A. Lyapin

    2017-12-01

    Full Text Available The author points out the importance of studying social conflicts in the history of Russia. Over the past years, this problem has been in the core of scholars’ attention. The study of social conflicts and crisis periods allows revealing important features of development of the Russian state. In this regard, the conference “In the age of changes: rebellion, insurrection and revolution in the 17th – early 20th centuries in the Russian province” that took place on September 21–23, 2017 at the Elets State University named after I.A. Bunin was characterized by utmost relevance. The conference was held with the support of the Russian Foundation for Basic Research (Department of Humanities and Social Sciences and the Administration of the Lipetsk Region. The scholars from 14 regions of Russia took part in the conference, more than half of them were represented by doctors of sciences. The reports of the conference participants aroused debates and focused on the social conflicts taking place in the Russian province in the 17th – first quarter of the 20th century. The reports were published in a special issue of the journal History: Facts and Symbols. The conference served as the discussion platform for major Russian scholars, and allowed to put forward new ideas, which together can be embodied in new events of this kind. The author considers several problematic reports and notes that the conference showed the importance of such events that determine and guide the development of rebellion studies in historical science.

  9. Understanding and managing change in health care organizations.

    Science.gov (United States)

    Nagaike, K

    1997-01-01

    Change impacts affected people and often causes difficulties. Health care organizations, locally and nationally, have undergone tremendous change to deliver quality services in a more effective and efficient manner in a competitive environment, with varying degrees of success. This article presents Robbins's categories of change and relates them to current changes in health care organizations. It discusses areas to consider to develop adaptable plans and to assist affected employees to better deal with these changes throughout the transition.

  10. Revolutionary business trends in supply chain management

    OpenAIRE

    Mijušković Veljko

    2010-01-01

    Contemporary turbulent business conditions in the era of high technology bring inherent rapid changes. In order to survive, the imperative set upon all market players is not the position of a follower but more of an anticipator and trend setter. These unexpected changes erase existing business models, traditional enterprise paradigms and customary philosophies. A business isolated in its way of seeing operations and unconnected with other strategic constituents within the supply chain is dest...

  11. A martyr for modernity: Qiu Jin -- feminist warrior, and revolutionary.

    Science.gov (United States)

    Fan, H; Mangan, J A

    2001-01-01

    Qui Jin, at one level, was an oriental twentieth-century Judith, the mythical Jewish widow from Bethulia who cut off the head of Holofernes, the Assyrian general besieging the city, thus saving the Israelites from destruction. Qui Jin was, as Judith was, a self-reliant heroine who when others seemed 'helpless and demoralized undertook to save them single-handedly', or in her case virtually single-handedly. This, of course, was both her making and her unmaking. In Chinese terms the story of Qui Jin, like the story of Judith if less famous, less publicised, more recent, is the story of an icon at once central and at the same time marginal to tradition. She contradicted the most cherished customs on Confucian Chinese culture. She was a radical force who thrust her way to the centre of the concentric circles of customs surrounding this culture and was pushed back to the margins by conservatism. Nevertheless Qui Jin was not without success. She challenged a long-established mythology of exclusively masterful patriarchy - and created a counter myth of purposeful patriotic feminism. She was a counter-cultural icon who changed perceptions of Chinese femininity. She gave courage, confidence and purpose to those women who came after her and absorbed her ambitions for modern Chinese womanhood. For them she was a modern national heroine and a personification of a modern nation of equal men and women. For Qui Jin the body was an instrument of female revolution to be trained, strengthened and prepared for confrontation. As a revolutionary militant she was a failure; as a revolutionary talisman she was a success. For the Chinese women of the 1911 Revolution hers was an exemplary emancipatory story: subscribe, struggle, sacrifice. Patriotism through feminism is the purpose. Her heroism was firmly outside the historic patriarchal order. Her adulation is thus all the more remarkable because of the profound traditions she rejected, the controversial mannerisms she adopted, the

  12. Understanding Global Change: Tools for exploring Earth processes and biotic change through time

    Science.gov (United States)

    Bean, J. R.; White, L. D.; Berbeco, M.

    2014-12-01

    Teaching global change is one of the great pedagogical challenges of our day because real understanding entails integrating a variety of concepts from different scientific subject areas, including chemistry, physics, and biology, with a variety of causes and impacts in the past, present, and future. With the adoption of the Next Generation Science Standards, which emphasize climate change and other human impacts on natural systems, there has never been a better time to provide instructional support to educators on these topics. In response to this clear need, the University of California Museum of Paleontology, in collaboration with the National Center for Science Education, developed a new web resource for teachers and students titled "Understanding Global Change" (UGC) that introduces the drivers and impacts of global change. This website clarifies the connections among deep time, modern Earth system processes, and anthropogenic influences, and provides K-16 instructors with a wide range of easy-to-use tools, strategies, and lesson plans for communicating these important concepts regarding global change and the basic Earth systems processes. In summer 2014, the UGC website was field-tested during a workshop with 25 K-12 teachers and science educators. Feedback from participants helped the UGC team develop and identify pedagogically sound lesson plans and instructional tools on global change. These resources are accessible through UGC's searchable database, are aligned with NGSS and Common Core, and are categorized by grade level, subject, and level of inquiry-based instruction (confirmation, structured, guided, open). Providing a range of content and tools at levels appropriate for teachers is essential because our initial needs assessment found that educators often feel that they lack the content knowledge and expertise to address complex, but relevant global change issues, such as ocean acidification and deforestation. Ongoing needs assessments and surveys of

  13. Understanding Language Change: Phonetics, Phonology and Child Language Acquisition

    National Research Council Canada - National Science Library

    Volk, Kevin

    1999-01-01

    Language change is a phenomenon that has fascinated scholars for centuries. As a science, linguistic theory has evolved considerably during the 20th century, but the overall puzzle of language change still remains unsolved...

  14. Constancy of character and Paul's understanding of change in his ...

    African Journals Online (AJOL)

    2010-11-21

    Nov 21, 2010 ... Paul's concern for explaining his own change in behaviour as positive and ... of fear of those of the circumcision (Gl 2:11–14), is not justified. ... have been changed by a divine call, and any further change of behaviour dishonours the divine ... Jewish Christians to which Betz appeals, as well as the idea that ...

  15. Societal Change and the Growing Divide between Knowing and Understanding

    Science.gov (United States)

    Elkind, David

    2011-01-01

    Social and economic changes affect children indirectly, through the modifications they engender in parental behavior. No-fault divorce laws, for example, made divorce easier and led to a substantial increase in the number of separated families. In contrast to social and economic change, technological change can impact children directly without…

  16. Understanding the real risks of changing employee benefit plans.

    Science.gov (United States)

    Kane, Jon; St Amour, Jeffrey

    2005-01-01

    In an environment of constant change, corporations are looking to alter employee benefits programs to make them more responsive to employee and business needs. A complete risk assessment process is the key to preparing for changes to employee benefits programs by providing employers with an analysis of cost savings against the potential negative ramifications of change. This article outlines the steps involved in a complete review of risk assessment. It then discusses how employers can develop successful change management communication strategies if, after conducting a risk assessment, employers decide to move forward with alterations to their employee benefits programs.

  17. Understanding the causes of architecture changes using OSS mailing lists

    NARCIS (Netherlands)

    Ding, Wei; Liang, Peng; Tang, Anthony; Van Vliet, Hans

    2015-01-01

    The causes of architecture changes can tell about why architecture changes, and this knowledge can be captured to prevent architecture knowledge vaporization and architecture degeneration. But the causes are not always known, especially in open source software (OSS) development. This makes it very

  18. From theory to practice: Understanding transformational change in NAMAs

    DEFF Research Database (Denmark)

    Mersmann, Florian; Olsen, Karen Holm; Wehnert, Timon

    and transformational change, exploring their possible applicability to NAMAs. The theoretical approaches are the basis to propose hypotheses for the dynamics, indicators and success factors that foster transformational change, which is necessary to assess whether a NAMA intervention has been or can be transformational...

  19. Understanding Climate Change and Manifestation of its Driven ...

    African Journals Online (AJOL)

    This article examines the nature and manifestation of climate change driven impacts on the agrarian districts of Kongwa and Bahi in the semi arid areas of Dodoma region in Tanzania. A Survey of 398 households in the study area was undertaken to elicit information on the nature and manifestation of climate change driven ...

  20. Understanding the Ties that Bind and the Possibilities for Change

    Science.gov (United States)

    Teachout, David J.

    2007-01-01

    The author describes how contemporary music education at the secondary level has fallen short of Dr. Charles Leonhard's vision for developing musical understanding and musical responsiveness in all students and cites several historical events as pivotal in promoting the profession's current path. The author then challenges this generalization by…

  1. Should NDM change our understanding of decision making?

    NARCIS (Netherlands)

    Kerstholt, J.H.; Ayton, P.

    2001-01-01

    What sort of activity should we understand to be encompassed by the term decision making? As laid out by Lipshitz et al. (this issue), the Naturalistic Decision Making (NDM) framework offers a view of human decision making that stems not from the familiar economic/mathematical theoretical tradition

  2. Understanding How Participation in Education Changes Mothers' Parenting Practices

    Science.gov (United States)

    Harding, Jessica F.; Morris, Pamela A.

    2015-01-01

    This research explores whether low-income mothers' participation in education influences a constellation of different parenting practices that are related to young children's academic outcomes. Importantly, understanding whether maternal participation in education influences mothers' parenting practices can illuminate a pathway by which increases…

  3. Understanding Prostate Changes: A Health Guide for Men

    Science.gov (United States)

    ... enzyme changes the male hormone testosterone into dihydrotestosterone (DHT), which stimulates prostate growth. When the action of 5-alpha reductase is blocked, DHT production is lowered and prostate growth slows. This ...

  4. Adapt or disperse: understanding species persistence in a changing world.

    NARCIS (Netherlands)

    Berg, M.P.; Kiers, E.T.; Driessen, G.J.J.; van der Heijden, M.G.A.; Kooi, B.W.; Kuenen, F.J.A.; Liefting, M.; Verhoef, H.A.; Ellers, J.

    2010-01-01

    The majority of studies on environmental change focus on the response of single species and neglect fundamental biotic interactions, such as mutualism, competition, predation, and parasitism, which complicate patterns of species persistence. Under global warming, disruption of community interactions

  5. Julio López Rendueles, a revolutionary professor

    Directory of Open Access Journals (Sweden)

    Zoila Rodríguez-Gobea

    2017-05-01

    Full Text Available Julio López Rendueles was part of the group of Spanish exiles who joined the rising University of Oriente, and contributed decisively to the development of this center of high studies and to the revolutionary struggle that was taking place in the nation led by Movement 26 of July. This work shows that, before arriving in Cuba, Professor López Rendueles was a prestigious intellectual and a prominent communist militant, defender of the Spanish Republic. After the triumph of the Revolution he moved to Havana, where he continued to collaborate with the Revolutionary Armed Forces in the creation of Camilo Cienfuegos Military Schools and with the Ministry of Education in the organization of polytechnic teaching and in writing books for the teaching of chemistry, physics and mathematics.

  6. Receptive Audiences for Climate Change Education: Understanding Attitudes and Barriers

    Science.gov (United States)

    Kelly, L. D.; Luebke, J. F.; Clayton, S.; Saunders, C. D.; Matiasek, J.; Grajal, A.

    2012-12-01

    Much effort has been devoted to finding ways to explain climate change to uninterested audiences and encourage mitigation behaviors among dismissive audiences. Most approaches have focused on conveying information about climate change processes or threats. Here we report the results of a national survey designed to characterize the readiness of zoo and aquarium visitors to engage with the issue of climate change. Two survey forms, one focused primarily on attitudes (N=3,594) and another on behaviors (N=3,588), were administered concurrently in summer 2011 at 15 Association of Zoos and Aquariums accredited institutions. The attitudes survey used Global Warming's Six Americas segmentation protocols (climatechangecommunication.org) to compare climate change attitudes of zoo and aquarium visitors with the American public (Leiserowitz et al., 2011). Our results reveal that visitors are receptive audiences for climate change education and want to do more to address climate change. Even these favorable audiences, however, perceive barriers to engaging in the issue, signifying the importance of meeting the learning needs of those who acknowledge anthropogenic climate change, and not only of climate change 'deniers.' While 39% of the general public is 'concerned' or 'alarmed' about global warming, 64% of zoo and aquarium visitors fall into these two "Six Americas" segments. Visitors also differ from the national sample in key attitudinal characteristics related to global warming. For example, nearly two-thirds believe human actions are related to global warming, versus less than one-half of the general public; and approximately 60% think global warming will harm them personally, moderately or a great deal, versus less than 30% of the general public. Moreover, 69% of visitors would like to do more to address climate change. Despite zoo and aquarium visitors' awareness of climate change and motivation to address it, survey results indicate they experience barriers to

  7. Electromagnetic mode conversion: understanding waves that suddenly change their nature

    International Nuclear Information System (INIS)

    Batchelor, D B; Berry, L A; Bonoli, P T; Carter, M D; Choi, M; D'Azevedo, E; D'Ippolito, D A; Gorelenkov, N; Harvey, R W; Jaeger, E F; Myra, J R; Okuda, H; Phillips, C K; Smithe, D N; Wright, J C

    2005-01-01

    In a magnetized plasma, such as in fusion devices or the Earth's magnetosphere, several different kinds of waves can simultaneously exist, having very different physical properties. Under the right conditions one wave can quite suddenly convert to another type. Depending on the case, this can be either a great benefit or a problem for the use of waves to heat and control fusion plasmas. Understanding and accurately modeling such behavior is a major computational challenge

  8. Understanding Phase-Change Memory Alloys from a Chemical Perspective

    Science.gov (United States)

    Kolobov, A. V.; Fons, P.; Tominaga, J.

    2015-09-01

    Phase-change memories (PCM) are associated with reversible ultra-fast low-energy crystal-to-amorphous switching in GeTe-based alloys co-existing with the high stability of the two phases at ambient temperature, a unique property that has been recently explained by the high fragility of the glass-forming liquid phase, where the activation barrier for crystallisation drastically increases as the temperature decreases from the glass-transition to room temperature. At the same time the atomistic dynamics of the phase-change process and the associated changes in the nature of bonding have remained unknown. In this work we demonstrate that key to this behavior is the formation of transient three-center bonds in the excited state that is enabled due to the presence of lone-pair electrons. Our findings additionally reveal previously ignored fundamental similarities between the mechanisms of reversible photoinduced structural changes in chalcogenide glasses and phase-change alloys and offer new insights into the development of efficient PCM materials.

  9. Understanding the Changes in Global Crop Yields Through Changes in Climate and Technology

    Science.gov (United States)

    Najafi, Ehsan; Devineni, Naresh; Khanbilvardi, Reza M.; Kogan, Felix

    2018-03-01

    During the last few decades, the global agricultural production has risen and technology enhancement is still contributing to yield growth. However, population growth, water crisis, deforestation, and climate change threaten the global food security. An understanding of the variables that caused past changes in crop yields can help improve future crop prediction models. In this article, we present a comprehensive global analysis of the changes in the crop yields and how they relate to different large-scale and regional climate variables, climate change variables and technology in a unified framework. A new multilevel model for yield prediction at the country level is developed and demonstrated. The structural relationships between average yield and climate attributes as well as trends are estimated simultaneously. All countries are modeled in a single multilevel model with partial pooling to automatically group and reduce estimation uncertainties. El Niño-southern oscillation (ENSO), Palmer drought severity index (PDSI), geopotential height anomalies (GPH), historical carbon dioxide (CO2) concentration and country-based time series of GDP per capita as an approximation of technology measurement are used as predictors to estimate annual agricultural crop yields for each country from 1961 to 2013. Results indicate that these variables can explain the variability in historical crop yields for most of the countries and the model performs well under out-of-sample verifications. While some countries were not generally affected by climatic factors, PDSI and GPH acted both positively and negatively in different regions for crop yields in many countries.

  10. Networked Community Change: Understanding Community Systems Change through the Lens of Social Network Analysis.

    Science.gov (United States)

    Lawlor, Jennifer A; Neal, Zachary P

    2016-06-01

    Addressing complex problems in communities has become a key area of focus in recent years (Kania & Kramer, 2013, Stanford Social Innovation Review). Building on existing approaches to understanding and addressing problems, such as action research, several new approaches have emerged that shift the way communities solve problems (e.g., Burns, 2007, Systemic Action Research; Foth, 2006, Action Research, 4, 205; Kania & Kramer, 2011, Stanford Social Innovation Review, 1, 36). Seeking to bring clarity to the emerging literature on community change strategies, this article identifies the common features of the most widespread community change strategies and explores the conditions under which such strategies have the potential to be effective. We identify and describe five common features among the approaches to change. Then, using an agent-based model, we simulate network-building behavior among stakeholders participating in community change efforts using these approaches. We find that the emergent stakeholder networks are efficient when the processes are implemented under ideal conditions. © Society for Community Research and Action 2016.

  11. Changing currents: a strategy for understanding and predicting the changing ocean circulation.

    Science.gov (United States)

    Bryden, Harry L; Robinson, Carol; Griffiths, Gwyn

    2012-12-13

    Within the context of UK marine science, we project a strategy for ocean circulation research over the next 20 years. We recommend a focus on three types of research: (i) sustained observations of the varying and evolving ocean circulation, (ii) careful analysis and interpretation of the observed climate changes for comparison with climate model projections, and (iii) the design and execution of focused field experiments to understand ocean processes that are not resolved in coupled climate models so as to be able to embed these processes realistically in the models. Within UK-sustained observations, we emphasize smart, cost-effective design of the observational network to extract maximum information from limited field resources. We encourage the incorporation of new sensors and new energy sources within the operational environment of UK-sustained observational programmes to bridge the gap that normally separates laboratory prototype from operational instrument. For interpreting the climate-change records obtained through a variety of national and international sustained observational programmes, creative and dedicated UK scientists should lead efforts to extract the meaningful signals and patterns of climate change and to interpret them so as to project future changes. For the process studies, individual scientists will need to work together in team environments to combine observational and process modelling results into effective improvements in the coupled climate models that will lead to more accurate climate predictions.

  12. Understanding semantic mapping evolution by observing changes in biomedical ontologies.

    Science.gov (United States)

    dos Reis, Julio Cesar; Pruski, Cédric; Da Silveira, Marcos; Reynaud-Delaître, Chantal

    2014-02-01

    Knowledge Organization Systems (KOSs) are extensively used in the biomedical domain to support information sharing between software applications. KOSs are proposed covering different, but overlapping subjects, and mappings indicate the semantic relation between concepts from two KOSs. Over time, KOSs change as do the mappings between them. This can result from a new discovery or a revision of existing knowledge which includes corrections of concepts or mappings. Indeed, changes affecting KOS entities may force the underline mappings to be updated in order to ensure their reliability over time. To tackle this open research problem, we study how mappings are affected by KOS evolution. This article presents a detailed descriptive analysis of the impact that changes in KOS have on mappings. As a case study, we use the official mappings established between SNOMED CT and ICD-9-CM from 2009 to 2011. Results highlight factors according to which KOS changes in varying degrees influence the evolution of mappings. Copyright © 2013 Elsevier Inc. All rights reserved.

  13. An Accessible Approach to Understanding Entropy and Change

    Science.gov (United States)

    Johnson, Philip

    2018-01-01

    This article challenges the notion that entropy is something to be avoided. A line of argument is presented that is accessible to those not having specialist knowledge and that offers a new perspective to those more familiar with the concept. It shows that temperature is better understood by addressing entropy. Entropy change diagrams are…

  14. Understanding the dynamic changes in India's peri-urban regions ...

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

    Peri-urban areas, which are beyond a city's administrative limits but adjacent to it, are ... where there are resource constraints, and where access to services such as water, ... The project is funded through the Opportunity Fund of the Think Tank ... IDRC congratulates first cohort of Women in Climate Change Science Fellows.

  15. Understanding, Predicting, and Preventing Life Changing and Life Threatening Health Changes among Aging Veterans and Civilians with Spinal Cord Injury

    Science.gov (United States)

    2017-10-01

    AWARD NUMBER: W81XWH-16-1-0629 TITLE: Understanding, Predicting, and Preventing Life -Changing and Life -Threatening Health Changes among Aging...Annual 3. DATES COVERED 30 Sep 2016 - 29 Sep 2017 4. TITLE AND SUBTITLE Understanding, Predicting, and Preventing Life -Changing and Life ... hope of preventing them. Our purpose is to better understand the how and why of the development of negative health spirals and how they may best be

  16. Risk-oriented banking supervision: understanding change of course

    Directory of Open Access Journals (Sweden)

    Vlasov K. A.

    2017-11-01

    Full Text Available in this article the existing model of national bank supervision, its substantial party are considered. By means of the legal analysis and comparative jurisprudence foreign models of bank supervision, the international standards of the «soft» right are investigated, the analysis of an opportunity and positive sides of change of approach of the operating bank supervision to substantial (risk-focused is made.

  17. Sixth-Grade Students' Progress in Understanding the Mechanisms of Global Climate Change

    Science.gov (United States)

    Visintainer, Tammie; Linn, Marcia

    2015-01-01

    Developing solutions for complex issues such as global climate change requires an understanding of the mechanisms involved. This study reports on the impact of a technology-enhanced unit designed to improve understanding of global climate change, its mechanisms, and their relationship to everyday energy use. Global Climate Change, implemented in…

  18. 76 FR 16443 - Proposed Information Collection: Strengthening the Scientific Understanding of Climate Change...

    Science.gov (United States)

    2011-03-23

    ... Collection: Strengthening the Scientific Understanding of Climate Change Impacts on Freshwater Resources of... Scientific Understanding of Climate Change Impacts on Freshwater Resources of the United States.'' The draft report reviews key issues related to freshwater resource data and climate change and identifies next...

  19. Understanding the economic benefits of climate change commitments

    International Nuclear Information System (INIS)

    Hinge, A.W.; Bourgeois, T.G.

    1998-01-01

    Much has been written about the likely economic costs of US commitment to a global climate change treaty, whereby signatory countries would be expected to stabilize or reduce carbon emissions. A great deal of rhetoric has surrounded the potential costs of such action, with some estimates stating that committing to such a treaty would result in 1.2 to 1.8 million job losses by the year 2010. On the other side of the discussion, the Energy Innovations report prepared by ACEEE and others showed that emissions could be cut by 10% by 2010, at the same time that the economy would grow modestly by $2.8 billion over a base case, including a net gain of 800,000 additional jobs. One area that has not been adequately addressed in the debate is quantifying the current level of activity of the positively affected industries from such a climate treaty, including the energy efficiency and renewable energy industries and other environmental businesses. This paper presents information on the current and prospective contribution of the energy efficiency industries to US economic output, exports and job creation. This will better define what the possible benefits to the US economy might be of potential global climate change policies. The magnitude of the beneficial economic impact will in part be determined by the extent to which energy efficiency products, and the components which comprise them, are manufactured in the US. An important issue to be addressed is the existence, scale, and the competitive position of these energy efficiency industries in the US

  20. Teaching Climate Change Using System Models: An Understanding Global Change Project Pilot Study

    Science.gov (United States)

    Bean, J. R.; Stuhlsatz, M.; Bracey, Z. B.; Marshall, C. R.

    2017-12-01

    Teaching and learning about historical and anthropogenic climate change in the classroom requires integrating instructional resources that address physical, chemical, and biological processes. The Understanding Global Change (UGC) framework and system models developed at the University of California Museum of Paleontology (UCMP) provide visualizations of the relationships and feedbacks between Earth system processes, and the consequences of anthropogenic activities on global climate. This schema provides a mechanism for developing pedagogic narratives that are known to support comprehension and retention of information and relationships. We designed a nine-day instructional unit for middle and high school students that includes a sequence of hands-on, inquiry-based, data rich activities combined with conceptual modeling exercises intended to foster students' development of systems thinking and their understanding of human influences on Earth system processes. The pilot unit, Sea Level Rise in the San Francisco Bay Area, addresses the human causes and consequences of sea level rise and related Earth system processes (i.e., the water cycle and greenhouse effect). Most of the content is not Bay Area specific, and could be used to explore sea level rise in any coastal region. Students completed pre and post assessments, which included questions about the connectedness of components of the Earth system and probed their attitudes towards participating in environmental stewardship activities. Students sequentially drew models representing the content explored in the activities and wrote short descriptions of their system diagrams that were collected by teachers for analysis. We also randomly assigned classes to engage in a very short additional intervention that asked students to think about the role that humans play in the Earth system and to draw themselves into the models. The study will determine if these students have higher stewardship scores and more frequently

  1. A predictive framework to understand forest responses to global change.

    Science.gov (United States)

    McMahon, Sean M; Dietze, Michael C; Hersh, Michelle H; Moran, Emily V; Clark, James S

    2009-04-01

    Forests are one of Earth's critical biomes. They have been shown to respond strongly to many of the drivers that are predicted to change natural systems over this century, including climate, introduced species, and other anthropogenic influences. Predicting how different tree species might respond to this complex of forces remains a daunting challenge for forest ecologists. Yet shifts in species composition and abundance can radically influence hydrological and atmospheric systems, plant and animal ranges, and human populations, making this challenge an important one to address. Forest ecologists have gathered a great deal of data over the past decades and are now using novel quantitative and computational tools to translate those data into predictions about the fate of forests. Here, after a brief review of the threats to forests over the next century, one of the more promising approaches to making ecological predictions is described: using hierarchical Bayesian methods to model forest demography and simulating future forests from those models. This approach captures complex processes, such as seed dispersal and mortality, and incorporates uncertainty due to unknown mechanisms, data problems, and parameter uncertainty. After describing the approach, an example by simulating drought for a southeastern forest is offered. Finally, there is a discussion of how this approach and others need to be cast within a framework of prediction that strives to answer the important questions posed to environmental scientists, but does so with a respect for the challenges inherent in predicting the future of a complex biological system.

  2. Educational Excursions in Technical Schools of Pre-revolutionary Russia

    Directory of Open Access Journals (Sweden)

    Timur A. Magsumov

    2013-01-01

    Full Text Available The author, using the data of pre-revolutionary technical schools, traces the genesis and trends of educational excursions development in the Russian Empire. Special attention is attached to the types, organizational forms and methods of excursion activities, educational policy, concerning its development. The article presents author’s classification of educational excursions, notes that educational excursions have become traditional and were operated systematically by the early XX century. Field excursions, which in fact displaced introductive training, prevailed in technical schools

  3. The Man Who Tamed Mexico's Tiger: General Joaquin Amaro and the Professionalization of Mexico's Revolutionary Army

    National Research Council Canada - National Science Library

    Carriedo, Robert

    2005-01-01

    .... While effective in overthrowing Diaz, Mexico's revolutionary armies neither disbanded nor submitted themselves to civilian rule, but instead retained their character as undisciplined and fiercely...

  4. What's in a name? Commonalities and differences in public understanding of "climate change" and "global warming"

    OpenAIRE

    Whitmarsh, Lorraine E.

    2009-01-01

    This paper reports on findings from a survey of public understanding of climate change and global warming amongst residents in the south of England. Whereas much previous research has relied on survey checklists to measure public understanding of climate change, this study employed a more qualitative approach to reveal participants' unprompted conceptions of climate change and global warming. Overall, the findings show a tendency for the public to dissociate themselves from the causes, impact...

  5. Western Australian High School Students' Understandings about the Socioscientific Issue of Climate Change

    Science.gov (United States)

    Dawson, Vaille

    2015-01-01

    Climate change is one of the most significant science issues facing humanity; yet, teaching students about climate change is challenging: not only is it multidisciplinary, but also it is contentious and debated in political, social and media forums. Students need to be equipped with an understanding of climate change science to be able to…

  6. Revolutionary Climatology: Rings of Saturn, Ringed by Red Lightning

    Directory of Open Access Journals (Sweden)

    Sarah K. Stanley

    2016-05-01

    Full Text Available Walter Benjamin’s concept of historical materialism is considered as a practice of media archaeology invented through literary montage and photo philosophy. The Arcades Project that facilitated this new research methodology involving a mobile archive. The main case involving architectural theory considers how Benjamin redeployed Sigfried Giedion and Laszlo Moholy-Nagy’s Building in France as a media environment, drawing upon its layout design, photo illustrations and textual systems. In terms of his urban writing, a reading of ‘A Berlin Chronicle’ considers how the diagram contributes to Benjamin’s archaeological methods, as a theory to generate site writing. Benjamin’s mode of media archaeology is then employed to map the arcades architecture onto the train stations and libraries in Berlin and Paris, sites that informed The Arcades Project. The final section assembles a set of citations as ‘Revolutionary Climatology’, thought-images as flashes of red lightning.

  7. Mish mabsoota: on teaching with a camera in revolutionary Cairo†

    Directory of Open Access Journals (Sweden)

    Mark R. Westmoreland

    2015-12-01

    Full Text Available Made in the wake of the 2011 Egyptian Revolution, Inti Mabsoota? is an experimental pedagogical video project that draws upon the emerging mobile esthetics of cell phone filmmaking and public encounters with revolutionary spontaneity. Inspired by the landmark cinéma-vérité film, Chronique d'un été (1960, in which participants ask people on the streets of Paris if they are happy, several of my students at the American University in Cairo became mobile film units, asking people the same innocuous question, “Inta mabsoot?/Inti mabsoota?”—Are you happy? Are you content? This seemingly benign exercise belies a variety of conceptual and methodological frictions, which offered productive pedagogical possibilities. Drawing upon the emergent revolutionary visual culture, this student project complicated both the reductive assessments of the “Arab Spring” as a manifestation of digital democracy and the heavy-handed way that western journalism has tended to address the “Arab Street” as a volatile mob. Using an embodied visual approach allowed students to apprehend modes of lived experience that might not register as political in more normative models, but which nonetheless form the basis of how people live and experience political life. Highlighting the non-representational aspects of the encounter also foregrounds the corporeal and visceral dimensions of the students’ experience. Accordingly, the critical video methods employed elucidate the kinds of affective knowledge produced for those on screen, behind the camera, and viewing from a distance.

  8. Land use and land cover change in the Western Cape Province: quantification of changes & understanding of driving factors

    CSIR Research Space (South Africa)

    Tizora, P

    2016-07-01

    Full Text Available changes in land use and land cover (LULC) and incited issues such as urban sprawl, marginalization of the poor, limited public access to resources, land degradation and climate change. This paper seeks to understand the most significant drivers of LULC...

  9. Globalization and Education within Two Revolutionary Organizations in the United States of America: A Gramscian Analysis

    Science.gov (United States)

    Holst, John D.

    2004-01-01

    This article presents the history, strategy, structure, educational practices, and globalization perspectives of two revolutionary organizations in the United States of America: the Freedom Road Socialist Organization and the League of Revolutionaries for a New America. This article relates the work of these organizations to the theory and…

  10. Film as Revolutionary Weapon: A Pedagogical Analysis. Latin American Studies Program, Film Series No. 3.

    Science.gov (United States)

    California Univ., Riverside. Latin American Studies Program.

    This paper describes a university course designed to examine the use of film as a revolutionary medium in Latin American countries. Objectives of the course were to illustrate the complexity of studying a film genre, develop an analytical framework for comparing revolutionary films, and encourage students to reach their own conclusions about the…

  11. Crucial knowledge gaps in current understanding of climate change impacts on coral reef fishes

    KAUST Repository

    Wilson, S. K.; Adjeroud, M.; Bellwood, D. R.; Berumen, Michael L.; Booth, D.; Bozec, Y.-M.; Chabanet, P.; Cheal, A.; Cinner, J.; Depczynski, M.; Feary, D. A.; Gagliano, M.; Graham, N. A. J.; Halford, A. R.; Halpern, B. S.; Harborne, A. R.; Hoey, A. S.; Holbrook, S. J.; Jones, G. P.; Kulbiki, M.; Letourneur, Y.; De Loma, T. L.; McClanahan, T.; McCormick, M. I.; Meekan, M. G.; Mumby, P. J.; Munday, P. L.; Ohman, M. C.; Pratchett, M. S.; Riegl, B.; Sano, M.; Schmitt, R. J.; Syms, C.

    2010-01-01

    Expert opinion was canvassed to identify crucial knowledge gaps in current understanding of climate change impacts on coral reef fishes. Scientists that had published three or more papers on the effects of climate and environmental factors on reef

  12. Seagrasses under threat: Understanding the resilience of temperate seagrass meadows in a changing environment

    NARCIS (Netherlands)

    Soissons, L.M.

    2017-01-01

    Despite being highly valuable ecosystems, seagrass meadows are threatened worldwide, mostly by human activities. In order to preserve seagrass meadows from collapse, we need to better understand their resilience in a changing environment. By means of various

  13. The Role of Motivation and Understanding in the Change of Teaching Practices

    Science.gov (United States)

    Ostinelli, Giorgio

    2016-01-01

    This is a reflection on a case of in-service teacher education. Two Swiss teachers, assisted by a change agent, were developing an innovative teaching approach, inspired by Wiggins & McTighe's methodology Understanding by Design (UbD). While one developed a real understanding and mastery of this approach--improving therefore his professional…

  14. Missouri Agricultural Energy Saving Team-A Revolutionary Opportunity (MAESTRO)

    Energy Technology Data Exchange (ETDEWEB)

    McIntosh, Jane [MDA; Schumacher, Leon [University of Missouri

    2014-10-23

    The Missouri Agricultural Energy Saving Team-A Revolutionary Opportunity (MAESTRO) program brought together a team of representatives from government, academia, and private industry to enhance the availability of energy efficiency services for small livestock producers in the State of Missouri. The Missouri Department of Agriculture (MDA) managed the project via a subcontract with the University of Missouri (MU), College of Agriculture Food and Natural Resources, MU Extension, the MU College of Human Environmental Sciences, the MU College of Engineering, and the Missouri Agricultural and Small Business Development Authority (MASBDA). MU teamed with EnSave, Inc, a nationally-recognized expert in agricultural energy efficiency to assist with marketing, outreach, provision of farm energy audits and customer service. MU also teamed with independent home contractors to facilitate energy audits of the farm buildings and homes of these livestock producers. The goals of the project were to: (1) improve the environment by reducing fossil fuel emissions and reducing the total energy used on small animal farms; (2) stimulate the economy of local and regional communities by creating or retaining jobs; and (3) improve the profitability of Missouri livestock producers by reducing their energy expenditures. Historically, Missouri scientists/engineers conducted programs on energy use in agriculture, such as in equipment, grain handling and tillage practices. The MAESTRO program was the first to focus strictly on energy efficiency associated with livestock production systems in Missouri and to investigate the applicability and potential of addressing energy efficiency in animal production from a building efficiency perspective. A. Project Objectives The goal of the MAESTRO program was to strengthen the financial viability and environmental soundness of Missouri's small animal farms by helping them implement energy efficient technologies for the production facility, farm

  15. Features Of The Local Government Development In Pre-Revolutionary Russia

    Directory of Open Access Journals (Sweden)

    Lyubov I. Rogacheva

    2014-09-01

    Full Text Available In the present article historical development of the municipal government institutes in the pre-revolutionary Russia are analyzed. Author emphasizes that in Russia at different stages of the statehood historical development a great experience of various forms and institutes of self-government were developed. History shows that municipal government in Russian conditions cannot develop in full in the conditions of weakening government. Without support of the strong state, municipal government have weak chances, but strong government may also suppress, crush self-government. In the Russian history the balance of public administration and self-government was quite often broken into the favor of the first, what may be explained by political and geographical factors of the country development which caused need of the strong centralized government existence. Reforms in the middle of the XIX century aggravated a question of the municipal government reforming, on the creation of new system instead of imperfect and outdated former structure. Elimination of the serfdom which changed legal status of the considerable part of population in the country caused the need of country estate involvement in the solution of various economic tasks at the municipal level. This task in a certain degree was solved during the reforms of the second half of the XIX century. However model created during this period was not ideal, it suffered from many defects, inherent for the long time by the system of the state and public relations in Russia. At the beginning of the XX century questions of the municipal government reforming were again actively discussed by scientists and public figures, on this subject there were numerous publications. However, revolutionary events made questions of municipal government almost irrelevant for the long time.

  16. Integrating population and genetic monitoring to understand changes in the abundance of a threatened seabird

    Science.gov (United States)

    Catalina Vásquez-Carrillo; R. William Henry; Laird Henkel; M. Zachariah. Peery

    2013-01-01

    Population monitoring programs for threatened species are rarely designed to disentangle the effects of movements from changes in birth and death rates on estimated trends in abundance. Here, we illustrate how population and genetic monitoring can be integrated to understand the cause of large changes in the abundance of a threatened species of seabird, the Marbled...

  17. Understanding Attitude Change in Developing Effective Substance Abuse Prevention Programs for Adolescents.

    Science.gov (United States)

    Scott, Cynthia G.

    1996-01-01

    Alcohol and drug use may be a significant part of the adolescent, high school experience. Programs should be based on an understanding of attitudes and patterns of use, and how change occurs. Elaboration Likelihood Model of Persuasion is a framework with which to examine attitude change and provide a base for building sound drug prevention…

  18. Revolutionary Aeropropulsion Concept for Sustainable Aviation: Turboelectric Distributed Propulsion

    Science.gov (United States)

    Kim, Hyun Dae; Felder, James L.; Tong, Michael. T.; Armstrong, Michael

    2013-01-01

    In response to growing aviation demands and concerns about the environment and energy usage, a team at NASA proposed and examined a revolutionary aeropropulsion concept, a turboelectric distributed propulsion system, which employs multiple electric motor-driven propulsors that are distributed on a large transport vehicle. The power to drive these electric propulsors is generated by separately located gas-turbine-driven electric generators on the airframe. This arrangement enables the use of many small-distributed propulsors, allowing a very high effective bypass ratio, while retaining the superior efficiency of large core engines, which are physically separated but connected to the propulsors through electric power lines. Because of the physical separation of propulsors from power generating devices, a new class of vehicles with unprecedented performance employing such revolutionary propulsion system is possible in vehicle design. One such vehicle currently being investigated by NASA is called the "N3-X" that uses a hybrid-wing-body for an airframe and superconducting generators, motors, and transmission lines for its propulsion system. On the N3-X these new degrees of design freedom are used (1) to place two large turboshaft engines driving generators in freestream conditions to minimize total pressure losses and (2) to embed a broad continuous array of 14 motor-driven fans on the upper surface of the aircraft near the trailing edge of the hybrid-wing-body airframe to maximize propulsive efficiency by ingesting thick airframe boundary layer flow. Through a system analysis in engine cycle and weight estimation, it was determined that the N3-X would be able to achieve a reduction of 70% or 72% (depending on the cooling system) in energy usage relative to the reference aircraft, a Boeing 777-200LR. Since the high-power electric system is used in its propulsion system, a study of the electric power distribution system was performed to identify critical dynamic and

  19. Western Australian High School Students' Understandings about the Socioscientific Issue of Climate Change

    Science.gov (United States)

    Dawson, Vaille

    2015-05-01

    Climate change is one of the most significant science issues facing humanity; yet, teaching students about climate change is challenging: not only is it multidisciplinary, but also it is contentious and debated in political, social and media forums. Students need to be equipped with an understanding of climate change science to be able to participate in this discourse. The purpose of this study was to examine Western Australian high school students' understanding of climate change and the greenhouse effect, in order to identify their alternative conceptions about climate change science and provide a baseline for more effective teaching. A questionnaire designed to elicit students' understanding and alternative conceptions was completed by 438 Year 10 students (14-15 years old). A further 20 students were interviewed. Results showed that students know different features of both climate change and the greenhouse effect, however not necessarily all of them and the relationships between. Five categories of alternative conceptions were identified. The categories were (1) the greenhouse effect and the ozone layer; (2) types of greenhouse gases; (3) types of radiation; (4) weather and climate and (5) air pollution. These findings provide science educators a basis upon which to develop strategies and curriculum resources to improve their students' understanding and decision-making skills about the socioscientific issue, climate change.

  20. Dilemmas in the Analysis of Technological Change. A Cognitive Approach to Understand Innovation and Change in the Water Sector

    Directory of Open Access Journals (Sweden)

    Dino Borri

    2014-05-01

    Full Text Available In this paper we argue for the need to apply a cognitive approach to understand deep dynamics and determinants of technological evolutions. After examining main contributions from innovation studies to the conceptualization of innovation and change in complex socio-technical environments, we highlight the contribution coming from the application of the cognitive approach to evolutionary studies on technologies and we introduce the concept of technological memory as an interpretative tool to understand those changes. We discuss our hypothesis with reference to several observations carried out in different local contexts – Mexico, India and Italy – in relation to technological change in the water sector. In those cases deliberate attempts to substitute traditional technologies with modern ones led to interesting trajectories of change ranging from the collapse of old technologies to the development of multifaceted hybridization patterns.

  1. Linking hunter knowledge with forest change to understand changing deer harvest opportunities in intensively logged landscapes

    Science.gov (United States)

    Tidd J. Brinkman; Terry Chapin; Gary Kofinas; David K. Person

    2009-01-01

    The effects of landscape changes caused by intensive logging on the availability of wild game are important when the harvest of wild game is a critical cultural practice, food source, and recreational activity. We assessed the influence of extensive industrial logging on the availability of wild game by drawing on local knowledge and ecological science to evaluate the...

  2. Understanding Change in Higher Education as Bricolage: How Academics Engage in Curriculum Change

    Science.gov (United States)

    Louvel, Séverine

    2013-01-01

    The engagement of academics in organizational change in higher education institutions is generally understood as involving a wide range of behaviors, and previous studies have situated academics' actions at various points along a continuum between passivity and pro-activity. This article complements this approach by asking how--rather than in…

  3. Conceptual Change in Understanding the Nature of Science Learning: An Interpretive Phenomenological Analysis

    Science.gov (United States)

    DiBenedetto, Christina M.

    This study is the first of its kind to explore the thoughts, beliefs, attitudes and values of secondary educators as they experience conceptual change in their understanding of the nature of science learning vis a vis the Framework for K-12 Science Education published by the National Research Council. The study takes aim at the existing gap between the vision for science learning as an active process of inquiry and current pedagogical practices in K-12 science classrooms. For students to understand and explain everyday science ideas and succeed in science studies and careers, the means by which they learn science must change. Focusing on this change, the study explores the significance of educator attitudes, beliefs and values to science learning through interpretive phenomenological analysis around the central question, "In what ways do educators understand and articulate attitudes and beliefs toward the nature of science learning?" The study further explores the questions, "How do educators experience changes in their understanding of the nature of science learning?" and "How do educators believe these changes influence their pedagogical practice?" Study findings converge on four conceptions that science learning: is the action of inquiry; is a visible process initiated by both teacher and learner; values student voice and changing conceptions is science learning. These findings have implications for the primacy of educator beliefs, attitudes and values in reform efforts, science teacher leadership and the explicit instruction of both Nature of Science and conceptual change in educator preparation programs. This study supports the understanding that the nature of science learning is cognitive and affective conceptual change. Keywords: conceptual change, educator attitudes and beliefs, framework for K-12 science education, interpretive phenomenological analysis, nature of science learning, next generation science standards, science professional development

  4. Sixth-Grade Students' Progress in Understanding the Mechanisms of Global Climate Change

    Science.gov (United States)

    Visintainer, Tammie; Linn, Marcia

    2015-04-01

    Developing solutions for complex issues such as global climate change requires an understanding of the mechanisms involved. This study reports on the impact of a technology-enhanced unit designed to improve understanding of global climate change, its mechanisms, and their relationship to everyday energy use. Global Climate Change, implemented in the Web-based Inquiry Science Environment (WISE), engages sixth-grade students in conducting virtual investigations using NetLogo models to foster an understanding of core mechanisms including the greenhouse effect. Students then test how the greenhouse effect is enhanced by everyday energy use. This study draws on three data sources: (1) pre- and post-unit interviews, (2) analysis of embedded assessments following virtual investigations, and (3) contrasting cases of two students (normative vs. non-normative understanding of the greenhouse effect). Results show the value of using virtual investigations for teaching the mechanisms associated with global climate change. Interviews document that students hold a wide range of ideas about the mechanisms driving global climate change. Investigations with models help students use evidence-based reasoning to distinguish their ideas. Results show that understanding the greenhouse effect offers a foundation for building connections between everyday energy use and increases in global temperature. An impediment to establishing coherent understanding was the persistence of an alternative conception about ozone as an explanation for climate change. These findings illustrate the need for regular revision of curriculum based on classroom trials. We discuss key design features of models and instructional revisions that can transform the teaching and learning of global climate change.

  5. Revolutionary optical sensor for physiological monitoring in the battlefield

    Science.gov (United States)

    Kingsley, Stuart A.; Sriram, Sriram; Pollick, Andrea; Marsh, John

    2004-09-01

    SRICO has developed a revolutionary approach to physiological status monitoring using state-of-the-art optical chip technology. The company"s patent pending Photrode is a photonic electrode that uses unique optical voltage sensing technology to measure and monitor electrophysiological parameters. The optical-based monitoring system enables dry-contact measurements of EEG and ECG signals that require no surface preparation or conductive gel and non-contact measurements of ECG signals through the clothing. The Photrode applies high performance optical integrated circuit technology, that has been successfully implemented in military & commercial aerospace, missile, and communications applications for sensing and signal transmission. SRICO"s award winning Photrode represents a new paradigm for the measurement of biopotentials in a reliable, convenient, and non-intrusive manner. Photrode technology has significant applications on the battlefield for rapid triage to determine the brain dead from those with viable brain function. An ECG may be obtained over the clothing without any direct skin contact. Such applications would enable the combat medic to receive timely medical information and to make important decisions regarding identification, location, triage priority and treatment of casualties. Other applications for the Photrode include anesthesia awareness monitoring, sleep medicine, mobile medical monitoring for space flight, emergency patient care, functional magnetic resonance imaging, various biopotential signal acquisition (EMG, EOG), and routine neuro and cardio diagnostics.

  6. CFD Vision 2030 Study: A Path to Revolutionary Computational Aerosciences

    Science.gov (United States)

    Slotnick, Jeffrey; Khodadoust, Abdollah; Alonso, Juan; Darmofal, David; Gropp, William; Lurie, Elizabeth; Mavriplis, Dimitri

    2014-01-01

    This report documents the results of a study to address the long range, strategic planning required by NASA's Revolutionary Computational Aerosciences (RCA) program in the area of computational fluid dynamics (CFD), including future software and hardware requirements for High Performance Computing (HPC). Specifically, the "Vision 2030" CFD study is to provide a knowledge-based forecast of the future computational capabilities required for turbulent, transitional, and reacting flow simulations across a broad Mach number regime, and to lay the foundation for the development of a future framework and/or environment where physics-based, accurate predictions of complex turbulent flows, including flow separation, can be accomplished routinely and efficiently in cooperation with other physics-based simulations to enable multi-physics analysis and design. Specific technical requirements from the aerospace industrial and scientific communities were obtained to determine critical capability gaps, anticipated technical challenges, and impediments to achieving the target CFD capability in 2030. A preliminary development plan and roadmap were created to help focus investments in technology development to help achieve the CFD vision in 2030.

  7. Gambling in revolutionary Paris - The Palais Royal: 1789-1838.

    Science.gov (United States)

    Barnhart, R T

    1992-06-01

    By the revolution of 1789, the four-story, quadrangular Palais Royal in Paris had become the most glittering tourist center of Europe, with 180 shops and cafes in its ground floor arcades. By 1791, its basement and secondary story contained over 100 separate, illicit gambling operations featuring the most popular dice and card games. The mania for gambling had been transferred from defunct, monarchical Versailles to the thriving, bourgeois Palais Royal, where the five main gaming clubs throbbed from noon till midnight. During the Revolution, Prince Talleyrand won 30,000 francs at one club, and after Waterloo in 1815, Marshal Blucher lost 1,500,000 francs in one night at another. To bring the situation under control and raise taxes for the state, in 1806 Napoleon legalized the main clubs, which from 1819 to 1837 grossed an enormous 137 million francs. When the anti-gambling forces triumphed in 1837 and the clubs were closed down, the National Guard had to be called out to evict the mobs of gamblers who refused to leave the tables. Dramatic reports from Revolutionary police raids, and quotations from the memoirs of humorous French gamblers and shocked foreign visitors, provide anecdotal illustrations of the 49 years during which the Palais Royal was the most intriguing and picturesque gambling mecca of Europe-and probably of the world.

  8. Linking Hunter Knowledge with Forest Change to Understand Changing Deer Harvest Opportunities in Intensively Logged Landscapes

    Directory of Open Access Journals (Sweden)

    Todd J. Brinkman

    2009-06-01

    Full Text Available The effects of landscape changes caused by intensive logging on the availability of wild game are important when the harvest of wild game is a critical cultural practice, food source, and recreational activity. We assessed the influence of extensive industrial logging on the availability of wild game by drawing on local knowledge and ecological science to evaluate the relationship between forest change and opportunities to harvest Sitka black-tailed deer (Odocoileus hemionus sitkensis on Prince of Wales Island, Alaska. We used data collected through interviews with local deer hunters and GIS analysis of land cover to determine relationships among landscape change, hunter access, and habitat for deer hunting over the last 50 yr. We then used these relationships to predict how harvest opportunities may change in the future. Intensive logging from 1950 into the 1990s provided better access to deer and habitat that facilitated deer hunting. However, successional changes in intensively logged forests in combination with a decline in current logging activity have reduced access to deer and increased undesirable habitat for deer hunting. In this new landscape, harvest opportunities in previously logged landscapes have declined, and hunters identify second-growth forest as one of the least popular habitats for hunting. Given the current state of the logging industry in Alaska, it is unlikely that the logging of the remaining old-growth forests or intensive management of second-growth forests will cause hunter opportunities to rebound to historic levels. Instead, hunter opportunities may continue to decline for at least another human generation, even if the long-term impacts of logging activity and deer harvest on deer numbers are minimal. Adapting hunting strategies to focus on naturally open habitats such as alpine and muskeg that are less influenced by external market forces may require considerably more hunting effort but provide the best option for

  9. Understanding practice change in community pharmacy: a qualitative research instrument based on organisational theory.

    Science.gov (United States)

    Roberts, Alison S; Hopp, Trine; Sørensen, Ellen Westh; Benrimoj, Shalom I; Chen, Timothy F; Herborg, Hanne; Williams, Kylie; Aslani, Parisa

    2003-10-01

    The past decade has seen a notable shift in the practice of pharmacy, with a strong focus on the provision of cognitive pharmaceutical services (CPS) by community pharmacists. The benefits of these services have been well documented, yet their uptake appears to be slow. Various strategies have been developed to overcome barriers to the implementation of CPS, with varying degrees of success, and little is known about the sustainability of the practice changes they produce. Furthermore, the strategies developed are often specific to individual programs or services, and their applicability to other CPS has not been explored. There seems to be a need for a flexible change management model for the implementation and dissemination of a range of CPS, but before it can be developed, a better understanding of the change process is required. This paper describes the development of a qualitative research instrument that may be utilised to investigate practice change in community pharmacy. Specific objectives included gaining knowledge about the circumstances surrounding attempts to implement CPS, and understanding relationships that are important to the change process. Organisational theory provided the conceptual framework for development of the qualitative research instrument, within which two theories were used to give insight into the change process: Borum's theory of organisational change, which categorizes change strategies as rational, natural, political or open; and Social Network Theory, which helps identify and explain the relationships between key people involved in the change process. A semi-structured affecting practice change found in the literature that warranted further investigation with the theoretical perspectives of organisational change and social networks. To address the research objectives, the instrument covered four broad themes: roles, experiences, strategies and networks. The qualitative research instrument developed in this study provides a

  10. The Coming Revolution of Peer Production and Revolutionary Cooperatives. A Response to Michel Bauwens, Vasilis Kostakis and Stefan Meretz

    Directory of Open Access Journals (Sweden)

    Jakob Rigi

    2014-04-01

    Full Text Available This article agrees with Meretz (2014 that the peer producing cooperatives which are proposed by Bauwens & Kostakis (2014 will become parts and parcels of the capitalist economy. Further, it argues that the so called Peer Production Licenses (PPL, originally designed by Dmitry Kleiner (2010, which is the basis of their proposal is a rent seeking instrument. Contra Bauwens & Kostakis, it argues that, from the perspectives of both reform and revolution, GPL is profoundly anti-capitalist. The article critiques Meretz`s understanding of exchange and reciprocity, on the one hand, and his underestimation of GPL`s communist aspect, on the other. On the positive side, the article, explicating the communist nature of GPL-oriented peer production, speculates about the general contours of a society where peer production is the dominant mode of production. The technological basis of this society, the article suggests, will be digital copying and automation. Spatially, it will be based on localities that transcend the current division between the city and country, synthesising agriculture with industrial, affective and symbolic production. The rise of a globally unified revolutionary social struggle which adopts peer production as its platform is indispensible for the transformation of capitalism into such a society.  A global network of revolutionary peer producing cooperatives which break with market and reduce their relations to it to an absolutely unavoidable necessary minimum can be a significant component of this social struggle. The building of these revolutionary cooperatives requires a massive exodus from the city to the country.

  11. Population, Environment, and Climate in the Albertine Rift: Understanding Local Impacts of Regional Change

    Science.gov (United States)

    Hartter, J.; Ryan, S. J.; Diem, J.; Palace, M. W.

    2012-12-01

    Climate change is of critical concern for conservation and to develop appropriate policies and responses, it is important not only to anticipate the nature of changes, but also how they are perceived, interpreted and adapted to by local people. The Albertine Rift in East Africa is one of the most threatened biodiversity hotspots due to dense settlement, extreme poverty, and land conversion. We synthesize ongoing NSF-CNH research, where Ugandan park landscapes are examined to understand the impacts of climate change on livelihoods. Kibale National Park, the main study site, exemplifies the challenges facing many parks because of its isolation within a densely populated agricultural landscape. Three separate household surveys (n=251, 130, 100) reveal that the most perceived benefits provided by Kibale were ecosystem services and farmers cite rainfall as one of the park's most important benefits, but are also concerned with variable precipitation. Analysis of 30+ years of daily rainfall station data shows total rainfall has not changed significantly, but timing and transitions of seasons and intra-seasonal distribution are highly variable, which may contribute to changes in farming schedules and threaten food security. Further, the contrast between land use/cover change over 25 years around the park and the stability of forest within the park underscores the need to understand this landscape for future sustainability planning and the inevitable population growth outside its boundaries. Understanding climate change impacts and feedbacks to and from socio-ecological systems are important to address the dual challenge of biodiversity conservation and poverty alleviation.

  12. Book Review: Revolutionary Keywords for A New Left by Ian Parker

    Directory of Open Access Journals (Sweden)

    Eyal Z Clyne

    2018-01-01

    Full Text Available Eyal Clyne reviews Ian Parker's "Revolutionary Keywords for A New Left" (Winchester and Washington: Zero books ISBN: 978-1-78535-642-1, a book that unlocks complex Left-struggle issues in short and accessible essays.

  13. The British Southern Campaign in the Revolutionary War: Implications for Contemporary Counter Insurgency

    National Research Council Canada - National Science Library

    Clover, Julian P

    2006-01-01

    The British effort in the Southern Campaign (1780-1782) of the Revolutionary War failed because of flawed national strategy and a failure to focus sufficient elements of national power against a background of competing global threats...

  14. A revolutionary concept to improve the efficiency of IC antennas

    Energy Technology Data Exchange (ETDEWEB)

    Milanesio, D.; Maggiora, R. [Politecnico di Torino, Dipartimento di Elettronica e Telecomunicazioni (DET), Torino (Italy)

    2014-02-12

    The successful design of an Ion Cyclotron (IC) antenna mainly relies on the capability of coupling high power to the plasma (MW), feature that is currently reached by allowing rather high voltages (tens of kV) on the unavoidable unmatched part of the feeding lines. This requirement is often responsible of arcs along the transmission lines and other unwanted phenomena that considerably limit the usage of IC launchers. In this work, we suggest and describe a revolutionary approach based on high impedance surfaces, which allows to increase the antenna radiation efficiency and, hence, to highly reduce the imposed voltages to couple the same level of power to the plasma. High-impedance surfaces are periodic metallic structures (patches) displaced usually on top of a dielectric substrate and grounded by means of vertical posts usually embedded inside a dielectric, in a mushroom-like shape. In terms of working properties, high impedance surfaces are electrically thin in-phase reflectors, i.e. they present a high impedance, within a given frequency band, such that the image currents are in-phase with the currents of the antenna itself, thus determining a significant efficiency increase. While the usual design of a high impedance surface requires the presence of a dielectric layer, some alternative solutions can be realized in vacuum, taking advantage of double layers ofmetallic patches. After an introductory part on the properties of high impedance surfaces, this work documents both their design by means of numerical codes and their implementation on a scaled mock-up.

  15. Understanding the divide between the theory and practice of organisational change

    Directory of Open Access Journals (Sweden)

    Julien Pollack

    2015-07-01

    Full Text Available This paper reviews the different ways that academics and practitioners write about and discuss change management, to develop an understanding of whether there is a divide between the theory and practice of change management. This research used scientometric research techniques to compare three corpora: one based on the most cited research in the general management literature on change management; one based on the most cited research in specialist change management journals; and one based on interviews with practising change managers. It was found that the general management literature emphasised an abstract understanding of knowledge management and the learning organisation, while the change management literature focused more on issues associated with value, culture and social identity. The practitioners emphasised issues at the individual, project and team levels, the need for the effective use of targeted communication to achieve organisational change objectives, and the value of rapidly identifying key drivers in a new context. This research found significant differences between these three corpora, which lends support to other researchers’ claims of a divide between theory and practice in change management.

  16. Revolutionary Art – Nationalism – Anti-Semitism: The Case of Wagner

    Directory of Open Access Journals (Sweden)

    Goran Gretić

    2014-01-01

    Full Text Available The article deals with the political aspects of revolutionary art of Richard Wagner. Through reading of Wagner’s artistic-philosophical project by his most influential interpreters – Friedrich Nietzsche, Thomas Mann and Theodor Adorno – author offers intellectual history of the reception of this project. Discourse on Wagner’s revolutionary art leads to the assessment of the influence Wagner’s cultural anti-Semitism and nationalism had on European politics in 20th century.

  17. Apologies as Politeness Strategies Expressed by Characters in "Revolutionary Road" Movie

    OpenAIRE

    Elham Abedi; Farinaz Shirani Bidabadi; Hadi Salehi

    2016-01-01

    This research aimed to investigate kinds of offences that motivate the characters in the movie "Revolutionary Road" to deliver their apology and to describe the way the characters express their apologies. The study used Trosborg's apology strategies and Holmes' social dimensions of communication and kinds of offences finding, Hymes' ethnography of communication with SPEAKING formula. The data of the research were taken from apology expressions employed in the movie entitled "Revolutionary Roa...

  18. The Effect of a Conceptual Change Approach on Understanding of Students' Chemical Equilibrium Concepts

    Science.gov (United States)

    Atasoy, Basri; Akkus, Huseyin; Kadayifci, Hakki

    2009-01-01

    The purpose of this study was to compare the effects of a conceptual change approach over traditional instruction on tenth-grade students' conceptual achievement in understanding chemical equilibrium. The study was conducted in two classes of the same teacher with participation of a total of 44 tenth-grade students. In this study, a…

  19. The Collaboration of Cooperative Learning and Conceptual Change: Enhancing the Students' Understanding of Chemical Bonding Concepts

    Science.gov (United States)

    Eymur, Gülüzar; Geban, Ömer

    2017-01-01

    The main purpose of this study was to investigate the effects of cooperative learning based on conceptual change approach instruction on ninth-grade students' understanding in chemical bonding concepts compared to traditional instruction. Seventy-two ninth-grade students from two intact chemistry classes taught by the same teacher in a public high…

  20. Root for rain : Towards understanding land-use change impacts on the water cycle

    NARCIS (Netherlands)

    Wang-Erlandsson, L.

    2017-01-01

    We live today on a human-dominated planet under unprecedented pressure on both land and water. The water cycle is intrinsically linked to vegetation and land use, and anticipating the consequences of simultaneous changes in land and water systems requires a thorough understanding of their

  1. Effect of Conceptual Change Approach on Students' Understanding of Reaction Rate Concepts

    Science.gov (United States)

    Kingir, Sevgi; Geban, Omer

    2012-01-01

    The purpose of the present study was to investigate the effect of conceptual change text oriented instruction compared to traditional instruction on 10th grade students' understanding of reaction rate concepts. 45 students from two classes of the same teacher in a public high school participated in this study. Students in the experimental group…

  2. UNDERSTANDING THE CHANGING ROLE OF PUBLIC SECTOR PERFORMANCE MEASUREMENT IN LESS DEVELOPED COUNTRIES

    NARCIS (Netherlands)

    Tillema, Sandra; Mimba, Ni Putu S. H.; Van Helden, G. Jan

    This article develops a framework for understanding changes in the demand for and supply of performance information in public sector organizations in less developed countries (LDCs). New Institutional Sociology (NIS) is used to argue that pressures from specific stakeholders stimulate organizations

  3. Shifting Preservice Teachers' Beliefs and Understandings to Support Pedagogical Change in Mathematics

    Science.gov (United States)

    Letwinsky, Karim Medico; Cavender, Monica

    2018-01-01

    Many preservice teacher (PST) programs throughout the world are preparing students to implement the Core Standards, which require deeper conceptual understandings of mathematics and an informed approach for teaching. In this qualitative multi-case study, researchers explored the teaching methods for two university instructors and changes in PSTs…

  4. Understanding rapid theoretical change in particle physics: a month-by-month co-citation analysis

    International Nuclear Information System (INIS)

    Sullivan, D.; Koester, D.; White, D.H.; Kern, R.

    1979-01-01

    While co-citation analysis has proved a powerful tool in the study of changes in intellectual foci in science, no one has ever used the technique to study very rapid changes in the theoretical structure of a scientific field. This paper presents month-by-month co-citation analyses of key phases in the weak-electromagnetic unification research program within particle physics, and shows that these analyses capture and illuminate very rapid intellectual changes. These data provide yet another illustration of the utility of co-citation analysis for understanding the history of science. 8 figures

  5. Untangling Spaghetti: How Innovation Changed at Oticon (A)

    DEFF Research Database (Denmark)

    Stranne, Søren; Maier, Anja; Strebel, Paul

    The bottom-up “Spaghetti Organization” for pioneering innovation at Oticon was successful growing the top line for almost two decades, but gradually became too fragmented and costly as the company increased in size. The failure of a high cost revolutionary new product launch, together with the ap....... Understanding the importance of aligning organization and culture to support change (application of the Galbraith Star Model)....

  6. Challenges and Changes: Developing Teachers' and Initial Teacher Education Students' Understandings of the Nature of Science

    Science.gov (United States)

    Ward, Gillian; Haigh, Mavis

    2017-12-01

    Teachers need an understanding of the nature of science (NOS) to enable them to incorporate NOS into their teaching of science. The current study examines the usefulness of a strategy for challenging or changing teachers' understandings of NOS. The teachers who participated in this study were 10 initial teacher education chemistry students and six experienced teachers from secondary and primary schools who were introduced to an explicit and reflective activity, a dramatic reading about a historical scientific development. Concept maps were used before and after the activity to assess teachers' knowledge of NOS. The participants also took part in a focus group interview to establish whether they perceived the activity as useful in developing their own understanding of NOS. Initial analysis led us to ask another group, comprising seven initial teacher education chemistry students, to take part in a modified study. These participants not only completed the same tasks as the previous participants but also completed a written reflection commenting on whether the activity and focus group discussion enhanced their understanding of NOS. Both Lederman et al.'s (Journal of Research in Science Teaching, 39(6), 497-521, 2002) concepts of NOS and notions of "naive" and "informed" understandings of NOS and Hay's (Studies in Higher Education, 32(1), 39-57, 2007) notions of "surface" and "deep" learning were used as frameworks to examine the participants' specific understandings of NOS and the depth of their learning. The ways in which participants' understandings of NOS were broadened or changed by taking part in the dramatic reading are presented. The impact of the data-gathering tools on the participants' professional learning is also discussed.

  7. Forests under climate change and air pollution: Gaps in understanding and future directions for research

    International Nuclear Information System (INIS)

    Matyssek, R.; Wieser, G.; Calfapietra, C.; Vries, W. de; Dizengremel, P.; Ernst, D.; Jolivet, Y.; Mikkelsen, T.N.; Mohren, G.M.J.; Le Thiec, D.; Tuovinen, J.-P.

    2012-01-01

    Forests in Europe face significant changes in climate, which in interaction with air quality changes, may significantly affect forest productivity, stand composition and carbon sequestration in both vegetation and soils. Identified knowledge gaps and research needs include: (i) interaction between changes in air quality (trace gas concentrations), climate and other site factors on forest ecosystem response, (ii) significance of biotic processes in system response, (iii) tools for mechanistic and diagnostic understanding and upscaling, and (iv) the need for unifying modelling and empirical research for synthesis. This position paper highlights the above focuses, including the global dimension of air pollution as part of climate change and the need for knowledge transfer to enable reliable risk assessment. A new type of research site in forest ecosystems (“supersites”) will be conducive to addressing these gaps by enabling integration of experimentation and modelling within the soil-plant-atmosphere interface, as well as further model development. - Highlights: ► Research needs are identified for forests under climate change and air pollution. ► Abiotic–biotic interactions in response impede tree-ecosystem upscaling. ► Integration of empirical and modelling research is advocated. ► The concept of multi-scale investigations at novel “Supersites” is propagated. ► “Supersites” warrant mechanistic understanding of soil-plant-atmosphere interface. - Forests under climate change and air pollution require empirical and modelling research needs to be integrated at novel “Supersites” through multi-scale investigations.

  8. Understanding turning points in intimate partner violence: factors and circumstances leading women victims toward change.

    Science.gov (United States)

    Chang, Judy C; Dado, Diane; Hawker, Lynn; Cluss, Patricia A; Buranosky, Raquel; Slagel, Leslie; McNeil, Melissa; Scholle, Sarah Hudson

    2010-02-01

    When counseling women experiencing intimate partner violence (IPV), healthcare providers can benefit from understanding the factors contributing to a women's motivation to change her situation. We wished to examine the various factors and situations associated with turning points and change seeking in the IPV situation. We performed qualitative analysis on data from 7 focus groups and 20 individual interviews with women (61 participants) with past and/or current histories of IPV. The turning points women identified fell into 5 major themes: (1) protecting others from the abuse/abuser; (2) increased severity/humiliation with abuse; (3) increased awareness of options/access to support and resources; (4) fatigue/recognition that the abuser was not going to change; and (5) partner betrayal/infidelity. Women experiencing IPV can identify specific factors and events constituting turning points or catalyst to change in their IPV situation. These turning points are dramatic shifts in beliefs and perceptions of themselves, their partners, and/or their situation that alter the women's willingness to tolerate the situation and motivate them to consider change. When counseling women experiencing IPV, health providers can incorporate understanding of turning points to motivate women to move forward in their process of changing their IPV situation.

  9. Deep learning for visual understanding

    NARCIS (Netherlands)

    Guo, Y.

    2017-01-01

    With the dramatic growth of the image data on the web, there is an increasing demand of the algorithms capable of understanding the visual information automatically. Deep learning, served as one of the most significant breakthroughs, has brought revolutionary success in diverse visual applications,

  10. Scenarios of Earth system change in western Canada: Conceptual understanding and process insights from the Changing Cold Regions Network

    Science.gov (United States)

    DeBeer, C. M.; Wheater, H. S.; Pomeroy, J. W.; Stewart, R. E.; Turetsky, M. R.; Baltzer, J. L.; Pietroniro, A.; Marsh, P.; Carey, S.; Howard, A.; Barr, A.; Elshamy, M.

    2017-12-01

    The interior of western Canada has been experiencing rapid, widespread, and severe hydroclimatic change in recent decades, and this is projected to continue in the future. To better assess future hydrological, cryospheric and ecological states and fluxes under future climates, a regional hydroclimate project was formed under the auspices of the Global Energy and Water Exchanges (GEWEX) project of the World Climate Research Programme; the Changing Cold Regions Network (CCRN; www.ccrnetwork.ca) aims to understand, diagnose, and predict interactions among the changing Earth system components at multiple spatial scales over the Mackenzie and Saskatchewan River basins of western Canada. A particular challenge is in applying land surface and hydrological models under future climates, as system changes and cold regions process interactions are not often straightforward, and model structures and parameterizations based on historical observations and understanding of contemporary system functioning may not adequately capture these complexities. To address this and provide guidance and direction to the modelling community, CCRN has drawn insights from a multi-disciplinary perspective on the process controls and system trajectories to develop a set of feasible scenarios of change for the 21st century across the region. This presentation will describe CCRN's efforts towards formalizing these insights and applying them in a large-scale modelling context. This will address what are seen as the most critical processes and key drivers affecting hydrological, cryospheric and ecological change, how these will most likely evolve in the coming decades, and how these are parameterized and incorporated as future scenarios for terrestrial ecology, hydrological functioning, permafrost state, glaciers, agriculture, and water management.

  11. Forests under climate change and air pollution: gaps in understanding and future directions for research.

    Science.gov (United States)

    Matyssek, R; Wieser, G; Calfapietra, C; de Vries, W; Dizengremel, P; Ernst, D; Jolivet, Y; Mikkelsen, T N; Mohren, G M J; Le Thiec, D; Tuovinen, J-P; Weatherall, A; Paoletti, E

    2012-01-01

    Forests in Europe face significant changes in climate, which in interaction with air quality changes, may significantly affect forest productivity, stand composition and carbon sequestration in both vegetation and soils. Identified knowledge gaps and research needs include: (i) interaction between changes in air quality (trace gas concentrations), climate and other site factors on forest ecosystem response, (ii) significance of biotic processes in system response, (iii) tools for mechanistic and diagnostic understanding and upscaling, and (iv) the need for unifying modelling and empirical research for synthesis. This position paper highlights the above focuses, including the global dimension of air pollution as part of climate change and the need for knowledge transfer to enable reliable risk assessment. A new type of research site in forest ecosystems ("supersites") will be conducive to addressing these gaps by enabling integration of experimentation and modelling within the soil-plant-atmosphere interface, as well as further model development. Copyright © 2011 Elsevier Ltd. All rights reserved.

  12. Forests under climate change and air pollution: Gaps in understanding and future directions for research

    DEFF Research Database (Denmark)

    Matyssek, R.; Wieser, G.; Calfapietra, C.

    2012-01-01

    Forests in Europe face significant changes in climate, which in interaction with air quality changes, may significantly affect forest productivity, stand composition and carbon sequestration in both vegetation and soils. Identified knowledge gaps and research needs include: (i) interaction between...... changes in air quality (trace gas concentrations), climate and other site factors on forest ecosystem response, (ii) significance of biotic processes in system response, (iii) tools for mechanistic and diagnostic understanding and upscaling, and (iv) the need for unifying modelling and empirical research...... for synthesis. This position paper highlights the above focuses, including the global dimension of air pollution as part of climate change and the need for knowledge transfer to enable reliable risk assessment. A new type of research site in forest ecosystems (“supersites”) will be conducive to addressing...

  13. Chronic disease and climate change: understanding co-benefits and their policy implications.

    Science.gov (United States)

    Capon, Anthony G; Rissel, Chris E

    2010-01-01

    Chronic disease and climate change are major public policy challenges facing governments around the world. An improved understanding of the relationship between chronic disease and climate change should enable improved policy formulation to support both human health and the health of the planet. Chronic disease and climate change are both unintended consequences of our way of life, and are attributable in part to the ready availability of inexpensive fossil fuel energy. There are co-benefits for health from actions to address climate change. For example, substituting physical activity and a vegetable-rich diet for motor vehicle transport and a meat-rich diet is both good for health and good for the planet. We should encourage ways of living that use less carbon as these can be healthy ways of living, for both individuals and society. Quantitative modelling of co-benefits should inform policy responses.

  14. Piloting a logic-based framework for understanding organisational change process for a health IT implementation.

    Science.gov (United States)

    Diment, Kieren; Garrety, Karin; Yu, Ping

    2011-01-01

    This paper describes how a method for evaluating organisational change based on the theory of logical types can be used for classifying organisational change processes to understand change after the implementation of an electronic documentation system in a residential aged care facility. In this instance we assess the organisational change reflected by care staff's perceptions of the benefits of the new documentation system at one site, at pre-implementation, and at 12 months post-implementation. The results show how a coherent view from the staff as a whole of the personal benefits, the benefits for others and the benefits for the organization create a situation of positive feedback leading to embeddedness of the documentation system into the site, and a broader appreciation of the potential capabilities of the electronic documentation system.

  15. Developing an In-depth Understanding of Elderly Adult's Vulnerability to Climate Change.

    Science.gov (United States)

    Rhoades, Jason L; Gruber, James S; Horton, Bill

    2018-05-08

    Recent reports highlight the vulnerability of elderly adults to climate change, yet limited research has focused on this topic. To address this, the purpose of this study was to develop an in-depth understanding of elderly adult's vulnerability to climate change within the context of a specific community. A case study methodology utilizing a community-based action research approach was employed to engage elderly participants living in Bridgeport, CT, in exploring their vulnerability to current and predicted climate stressors with a focus on extreme heat, flooding and storms, and air pollution. This research identifies personal characteristics that interact with contextual factors to influence elderly adult's vulnerability to climate change. Personal characteristics include health, economic, and social considerations. Contextual factors include the adequacy of emergency preparedness measures, transportation resources, and coping and recovery resources. As a result of the interplay of these characteristics and factors, predicted climate changes could have serious consequences for Bridgeport's elderly adults. This research provides a contextualized and detailed illustration of how climate change could overwhelm elderly adult's adaptive capacity and highlights the need for support services to provide safeguards. The issues and concerns raised may bear similarities to other locations, especially urban settings facing similar climate stressors with similar socioeconomic conditions. The findings suggest a need for further research to improve our understanding and serve as the basis for collaborative adaptation planning that engages elderly communities with local governments and a broad coalition of partners to keep elders safe.

  16. Understanding of Grassland Ecosystems under Climate Change and Economic Development Pressures in the Mongolia Plateau

    Science.gov (United States)

    Qi, J.; Chen, J.; Shan, P.; Pan, X.; Wei, Y.; Wang, M.; Xin, X.

    2011-12-01

    The land use and land cover change, especially in the form of grassland degradation, in the Mongolian Plateau, exhibited a unique spatio-temporal pattern that is a characteristic of a mixed stress from economic development and climate change of the region. The social dimension of the region played a key role in shaping the landscape and land use change, including the cultural clashes with economic development, conflicts between indigenous people and business ventures, and exogenous international influences. Various research projects have been conducted in the region to focus on physical degradation of grasslands and/or on economic development but there is a lack of understanding how the social and economic dimensions interact with grassland ecosystems and changes. In this talk, a synthesis report was made based on the most recent workshop held in Hohhot, Inner Mongolia, of China, that specifically focused on climate change and grassland ecosystems. The report analyzed the degree of grassland degradation, its climate and social drivers, and coupling nature of economic development and conservation of traditional grassland values. The goal is to fully understand the socio-ecological-economic interactions that together shape the trajectory of the grassland ecosystems in the Mongolia Plateau.

  17. Commoning in the periphery – The role of the commons for understanding rural continuities and change

    Directory of Open Access Journals (Sweden)

    Emil Sandström

    2017-03-01

    Full Text Available This paper explores how commons reproduce over time and introduces the concept of commoning to discuss rural continuities and change. The point of departure is that commons are essential for local community development in that they have an important role for mediating social change and for local identity production. Through an ethnographic and historical study of a number of commons systems from the village of Ängersjö in the Midwest of Sweden, the paper argues for a more historically and socially grounded understanding of how commons evolve. The paper examines Ängersjö’s commons within two broad historical time frames – the pre-industrial (4th to 20th century and the post-industrial time periods (20th century to the present – in order to understand commons, not just as arenas for resource extraction and resource struggles, but also as important contexts for identity formation, local mobilisation and for shaping rural change. The paper reveals how the commons have co-evolved with changes in society at large and how the meanings and functions of the commons have changed throughout history – from being important economic resources – to cultural and symbolic resources that have created new avenues for collective action.

  18. Ophthalmic changes and increased intracranial pressure associated with long duration spaceflight: An emerging understanding

    Science.gov (United States)

    Marshall-Bowman, Karina; Barratt, Michael R.; Gibson, C. Robert

    2013-06-01

    For many years, there have been anecdotal reports of vision changes by astronauts following short and long-duration spaceflight. Much of this was attributed to hyperopic shifts related to the age of the flying population. However, it has recently been recognized that vision changes are actually quite common in astronauts and are associated with a constellation of findings including elevated intracranial pressure, optic disc edema, globe flattening, optic nerve sheath thickening, hyperopic shifts and retinal changes. With advanced imaging modalities available on the ground along with the fidelity of in-flight diagnostic capabilities previously unavailable, information on this newly recognized syndrome is accumulating. As of this writing, 11 cases of visual impairment experienced by astronauts during missions on-board the International Space Station (ISS) have been documented and studied. Although the exact mechanisms of the vision changes are unknown, it is hypothesized that increased intracranial pressure (ICP) is a contributing factor. Microgravity is the dominant cause of many physiological changes during spaceflight and is thought to contribute significantly to the observed ophthalmic changes. However, several secondary factors that could contribute to increased ICP and vision changes in spaceflight have been proposed. Possible contributors include microgravity-induced cephalad fluid shift, venous obstruction due to microgravity-induced anatomical shifts, high levels of spacecraft cabin carbon dioxide, heavy resistive exercise, and high sodium diet. Individual susceptibility to visual impairment is not fully understood, though a demographic of affected astronauts is emerging. This paper describes the current understanding of this newly recognized syndrome, presents data from 11 individual cases, and discusses details of potential contributing factors. The occurrence of visual changes in long duration missions in microgravity is one of the most significant

  19. Reifications of the intellectual: representations, organization and agency in revolutionary China.

    Science.gov (United States)

    U, Eddy

    2013-12-01

    How did 'intellectuals' evolve from a class of subjects in Marxian thoughts to highly visible populations under communism? Such 'reifications of the intellectual' have deeply affected subjectivity, conflict and organization, but received little attention in the political sociology of communism. This essay draws on research on classifications and social boundaries to address the objective and subjective foundations of the reifications and their impact on communist rule. The intellectual is viewed as an identification formed and performed around multiple social axes (most notably family background, educational achievement, occupational history, institutional affiliation and revolutionary rank) that reflected broader patterns of communist political domination. I use the Chinese Communist movement to demonstrate that (1) interaction of political contests, ruling strategies and institutional developments turned a diversity of persons into 'intellectuals' who were allegedly imbued with reprehensible interests and habits linked to privileged economic classes; (2) constant competitions for power and organizational changes led to classificatory ambiguities and, in turn, allowed individuals some control over their identifications; and (3) the developments profoundly influenced identity, state and class formation. Focusing on the dynamics that produced a highly visible but fluid population of 'intellectuals' opens new pathways for comparative research on communism. © London School of Economics and Political Science 2013.

  20. Grand challenges in understanding the interplay of climate and land changes

    Science.gov (United States)

    Liu, Shuguang; Bond-Lamberty, Ben; Boysen, Lena R.; Ford, James D.; Fox, Andrew; Gallo, Kevin; Hatfield, Jerry L.; Henebry, Geoffrey M.; Huntington, Thomas G.; Liu, Zhihua; Loveland, Thomas R.; Norby, Richard J.; Sohl, Terry L.; Steiner, Allison L.; Yuan, Wenping; Zhang, Zhao; Zhao, Shuqing

    2017-01-01

    Half of Earth’s land surface has been altered by human activities, creating various consequences on the climate and weather systems at local to global scales, which in turn affect a myriad of land surface processes and the adaptation behaviors. This study reviews the status and major knowledge gaps in the interactions of land and atmospheric changes and present 11 grand challenge areas for the scientific research and adaptation community in the coming decade. These land-cover and land-use change (LCLUC)-related areas include 1) impacts on weather and climate, 2) carbon and other biogeochemical cycles, 3) biospheric emissions, 4) the water cycle, 5) agriculture, 6) urbanization, 7) acclimation of biogeochemical processes to climate change, 8) plant migration, 9) land-use projections, 10) model and data uncertainties, and, finally, 11) adaptation strategies. Numerous studies have demonstrated the effects of LCLUC on local to global climate and weather systems, but these putative effects vary greatly in magnitude and even sign across space, time, and scale and thus remain highly uncertain. At the same time, many challenges exist toward improved understanding of the consequences of atmospheric and climate change on land process dynamics and services. Future effort must improve the understanding of the scale-dependent, multifaceted perturbations and feedbacks between land and climate changes in both reality and models. To this end, one critical cross-disciplinary need is to systematically quantify and better understand measurement and model uncertainties. Finally, LCLUC mitigation and adaptation assessments must be strengthened to identify implementation barriers, evaluate and prioritize opportunities, and examine how decision-making processes work in specific contexts.

  1. Recent Advances in Understanding the Effects of Climate Change on Coral Reefs

    Directory of Open Access Journals (Sweden)

    Andrew S. Hoey

    2016-05-01

    Full Text Available Climate change is one of the greatest threats to the persistence of coral reefs. Sustained and ongoing increases in ocean temperatures and acidification are altering the structure and function of reefs globally. Here, we summarise recent advances in our understanding of the effects of climate change on scleractinian corals and reef fish. Although there is considerable among-species variability in responses to increasing temperature and seawater chemistry, changing temperature regimes are likely to have the greatest influence on the structure of coral and fish assemblages, at least over short–medium timeframes. Recent evidence of increases in coral bleaching thresholds, local genetic adaptation and inheritance of heat tolerance suggest that coral populations may have some capacity to respond to warming, although the extent to which these changes can keep pace with changing environmental conditions is unknown. For coral reef fishes, current evidence indicates increasing seawater temperature will be a major determinant of future assemblages, through both habitat degradation and direct effects on physiology and behaviour. The effects of climate change are, however, being compounded by a range of anthropogenic disturbances, which may undermine the capacity of coral reef organisms to acclimate and/or adapt to specific changes in environmental conditions.

  2. Changes in health perceptions after exposure to human suffering: using discrete emotions to understand underlying processes.

    Directory of Open Access Journals (Sweden)

    Antonia A Paschali

    Full Text Available BACKGROUND: The aim of this study was to examine whether exposure to human suffering is associated with negative changes in perceptions about personal health. We further examined the relation of possible health perception changes, to changes in five discrete emotions (i.e., fear, guilt, hostility/anger, and joviality, as a guide to understand the processes underlying health perception changes, provided that each emotion conveys information regarding triggering conditions. METHODOLOGY/FINDINGS: An experimental group (N = 47 was exposed to images of human affliction, whereas a control group (N = 47 was exposed to relaxing images. Participants in the experimental group reported more health anxiety and health value, as well as lower health-related optimism and internal health locus of control, in comparison to participants exposed to relaxing images. They also reported more fear, guilt, hostility and sadness, as well as less joviality. Changes in each health perception were related to changes in particular emotions. CONCLUSION: These findings imply that health perceptions are shaped in a constant dialogue with the representations about the broader world. Furthermore, it seems that the core of health perception changes lies in the acceptance that personal well-being is subject to several potential threats, as well as that people cannot fully control many of the factors the determine their own well-being.

  3. The Promise and Limitations of Using Analogies to Improve Decision-Relevant Understanding of Climate Change.

    Directory of Open Access Journals (Sweden)

    Kaitlin T Raimi

    Full Text Available To make informed choices about how to address climate change, members of the public must develop ways to consider established facts of climate science and the uncertainties about its future trajectories, in addition to the risks attendant to various responses, including non-response, to climate change. One method suggested for educating the public about these issues is the use of simple mental models, or analogies comparing climate change to familiar domains such as medical decision making, disaster preparedness, or courtroom trials. Two studies were conducted using online participants in the U.S.A. to test the use of analogies to highlight seven key decision-relevant elements of climate change, including uncertainties about when and where serious damage may occur, its unprecedented and progressive nature, and tradeoffs in limiting climate change. An internal meta-analysis was then conducted to estimate overall effect sizes across the two studies. Analogies were not found to inform knowledge about climate literacy facts. However, results suggested that people found the medical analogy helpful and that it led people-especially political conservatives-to better recognize several decision-relevant attributes of climate change. These effects were weak, perhaps reflecting a well-documented and overwhelming effect of political ideology on climate change communication and education efforts in the U.S.A. The potential of analogies and similar education tools to improve understanding and communication in a polarized political environment are discussed.

  4. The Promise and Limitations of Using Analogies to Improve Decision-Relevant Understanding of Climate Change.

    Science.gov (United States)

    Raimi, Kaitlin T; Stern, Paul C; Maki, Alexander

    2017-01-01

    To make informed choices about how to address climate change, members of the public must develop ways to consider established facts of climate science and the uncertainties about its future trajectories, in addition to the risks attendant to various responses, including non-response, to climate change. One method suggested for educating the public about these issues is the use of simple mental models, or analogies comparing climate change to familiar domains such as medical decision making, disaster preparedness, or courtroom trials. Two studies were conducted using online participants in the U.S.A. to test the use of analogies to highlight seven key decision-relevant elements of climate change, including uncertainties about when and where serious damage may occur, its unprecedented and progressive nature, and tradeoffs in limiting climate change. An internal meta-analysis was then conducted to estimate overall effect sizes across the two studies. Analogies were not found to inform knowledge about climate literacy facts. However, results suggested that people found the medical analogy helpful and that it led people-especially political conservatives-to better recognize several decision-relevant attributes of climate change. These effects were weak, perhaps reflecting a well-documented and overwhelming effect of political ideology on climate change communication and education efforts in the U.S.A. The potential of analogies and similar education tools to improve understanding and communication in a polarized political environment are discussed.

  5. The Promise and Limitations of Using Analogies to Improve Decision-Relevant Understanding of Climate Change

    Science.gov (United States)

    Stern, Paul C.; Maki, Alexander

    2017-01-01

    To make informed choices about how to address climate change, members of the public must develop ways to consider established facts of climate science and the uncertainties about its future trajectories, in addition to the risks attendant to various responses, including non-response, to climate change. One method suggested for educating the public about these issues is the use of simple mental models, or analogies comparing climate change to familiar domains such as medical decision making, disaster preparedness, or courtroom trials. Two studies were conducted using online participants in the U.S.A. to test the use of analogies to highlight seven key decision-relevant elements of climate change, including uncertainties about when and where serious damage may occur, its unprecedented and progressive nature, and tradeoffs in limiting climate change. An internal meta-analysis was then conducted to estimate overall effect sizes across the two studies. Analogies were not found to inform knowledge about climate literacy facts. However, results suggested that people found the medical analogy helpful and that it led people—especially political conservatives—to better recognize several decision-relevant attributes of climate change. These effects were weak, perhaps reflecting a well-documented and overwhelming effect of political ideology on climate change communication and education efforts in the U.S.A. The potential of analogies and similar education tools to improve understanding and communication in a polarized political environment are discussed. PMID:28135337

  6. Crucial knowledge gaps in current understanding of climate change impacts on coral reef fishes

    KAUST Repository

    Wilson, S. K.

    2010-02-26

    Expert opinion was canvassed to identify crucial knowledge gaps in current understanding of climate change impacts on coral reef fishes. Scientists that had published three or more papers on the effects of climate and environmental factors on reef fishes were invited to submit five questions that, if addressed, would improve our understanding of climate change effects on coral reef fishes. Thirty-three scientists provided 155 questions, and 32 scientists scored these questions in terms of: (i) identifying a knowledge gap, (ii) achievability, (iii) applicability to a broad spectrum of species and reef habitats, and (iv) priority. Forty-two per cent of the questions related to habitat associations and community dynamics of fish, reflecting the established effects and immediate concern relating to climate-induced coral loss and habitat degradation. However, there were also questions on fish demographics, physiology, behaviour and management, all of which could be potentially affected by climate change. Irrespective of their individual expertise and background, scientists scored questions from different topics similarly, suggesting limited bias and recognition of a need for greater interdisciplinary and collaborative research. Presented here are the 53 highest-scoring unique questions. These questions should act as a guide for future research, providing a basis for better assessment and management of climate change impacts on coral reefs and associated fish communities.

  7. Experts’ understandings of drinking water risk management in a climate change scenario

    Directory of Open Access Journals (Sweden)

    Åsa Boholm

    2017-01-01

    Full Text Available The challenges for society presented by climate change are complex and demanding. This paper focuses on one particular resource of utmost necessity and vulnerability to climate change: namely, the provisioning of safe drinking water. From a critical perspective on the role of expertise in risk debates, this paper looks at how Swedish experts understand risk to drinking water in a climate change scenario and how they reason about challenges to risk management and adaptation strategies. The empirical material derives from ten in-depth semi-structured interviews with experts, employed both at government agencies and at universities, and with disciplinary backgrounds in a variety of fields (water engineering, planning, geology and environmental chemistry. The experts understand risk factors affecting both drinking water quality and availability as complex and systemically interrelated. A lack of political saliency of drinking water as a public service is identified as an obstacle to the development of robust adaptation strategies. Another area of concern relates to the geographical, organizational and institutional boundaries (regulatory, political and epistemological between the plethora of public actors with partly overlapping and sometimes unclear responsibilities for the provisioning of safe drinking water. The study concludes that climate change adaptation regarding drinking water provisioning will require a new integration of the knowledge of systemic risk relations, in combination with more efficient agency collaboration based on a clear demarcation of responsibility between actors.

  8. Cognitive Neuroscience Approaches to Understanding Behavior Change in Alcohol Use Disorder Treatments.

    Science.gov (United States)

    Naqvi, Nasir H; Morgenstern, Jon

    2015-01-01

    Researchers have begun to apply cognitive neuroscience concepts and methods to study behavior change mechanisms in alcohol use disorder (AUD) treatments. This review begins with an examination of the current state of treatment mechanisms research using clinical and social psychological approaches. It then summarizes what is currently understood about the pathophysiology of addiction from a cognitive neuroscience perspective. Finally, it reviews recent efforts to use cognitive neuroscience approaches to understand the neural mechanisms of behavior change in AUD, including studies that use neural functioning to predict relapse and abstinence; studies examining neural mechanisms that operate in current evidence-based behavioral interventions for AUD; as well as research on novel behavioral interventions that are being derived from our emerging understanding of the neural and cognitive mechanisms of behavior change in AUD. The article highlights how the regulation of subcortical regions involved in alcohol incentive motivation by prefrontal cortical regions involved in cognitive control may be a core mechanism that plays a role in these varied forms of behavior change in AUD. We also lay out a multilevel framework for integrating cognitive neuroscience approaches with more traditional methods for examining AUD treatment mechanisms.

  9. Revisiting of Stommel's model for the understanding of the abrupt climate change

    International Nuclear Information System (INIS)

    Scatamacchia, R.; Purini, R.; Rafanelli, C.

    2010-01-01

    Despite the enormous number of papers devoted to modelling climate changes, the pionieristic Stommel paper (1961) remains a still valid tool for the understanding of the basic mechanism that governs the abrupt climate change, i.e. the existence of multipla equilibria in the governing non-linear equations. Using non-dimensional quantities, Stommel did not provide any explicit information about the temporal scale affecting the process under examination when the control parameters are varied. On the basis of this consideration, the present paper revisits the Stommel theory putting some emphasis on the quantitative estimate of how the variations of the control system parameters system modify the fundamental motor of the climate change, i.e. the thermohaline circulation.

  10. Understanding the influence of climate change on the embodied energy of water supply.

    Science.gov (United States)

    Mo, Weiwei; Wang, Haiying; Jacobs, Jennifer M

    2016-05-15

    The current study aims to advance understandings on how and to what degree climate change will affect the life cycle chemical and energy uses of drinking water supply. A dynamic life cycle assessment was performed to quantify historical monthly operational embodied energy of a selected water supply system located in northeast US. Comprehensive multivariate and regression analyses were then performed to understand the statistical correlation among monthly life cycle energy consumptions, three water quality indicators (UV254, pH, and water temperature), and five climate indicators (monthly mean temperature, monthly mean maximum/minimum temperatures, total precipitation, and total snow fall). Thirdly, a calculation was performed to understand how volumetric and total life cycle energy consumptions will change under two selected IPCC emission scenarios (A2 and B1). It was found that volumetric life cycle energy consumptions are highest in winter months mainly due to the higher uses of natural gas in the case study system, but total monthly life cycle energy consumptions peak in both July and January because of the increasing water demand in summer months. Most of the variations in chemical and energy uses can be interpreted by water quality and climate variations except for the use of soda ash. It was also found that climate change might lead to an average decrease of 3-6% in the volumetric energy use of the case study system by the end of the century. This result combined with conclusions reached by previous climate versus water supply studies indicates that effects of climate change on drinking water supply might be highly dependent on the geographical location and treatment process of individual water supply systems. Copyright © 2016 Elsevier Ltd. All rights reserved.

  11. A conceptual connectivity framework for understanding geomorphic change in human-impacted fluvial systems

    Science.gov (United States)

    Pöppl, Ronald; Keesstra, Saskia; Maroulis, Jerry

    2017-04-01

    Human-induced landscape change is difficult to predict due to the complexity inherent in both geomorphic and social systems as well as due to emerging coupling relationships between them. To better understand system complexity and system response to change, connectivity has become an important research paradigm within various disciplines including geomorphology, hydrology and ecology. With the proposed conceptual connectivity framework on geomorphic change in human-impacted fluvial systems a cautionary note is flagged regarding the need (i) to include and to systematically conceptualise the role of different types of human agency in altering connectivity relationships in geomorphic systems and (ii) to integrate notions of human-environment interactions to connectivity concepts in geomorphology to better explain causes and trajectories of landscape change. Underpinned by case study examples, the presented conceptual framework is able to explain how geomorphic response of fluvial systems to human disturbance is determined by system-specific boundary conditions (incl. system history, related legacy effects and lag times), vegetation dynamics and human-induced functional relationships (i.e. feedback mechanisms) between the different spatial dimensions of connectivity. It is further demonstrated how changes in social systems can trigger a process-response feedback loop between social and geomorphic systems that further governs the trajectory of landscape change in coupled human-geomorphic systems.

  12. How a more detailed understanding of culture is needed before successful educational change can be made.

    Science.gov (United States)

    Rosenthal, Meagen; Desselle, Shane; Holmes, Erin

    2017-09-01

    The profession of pharmacy is being afforded many important opportunities, and continues to face many challenges. To successfully address these issues schools and colleges of pharmacy must have a complete understanding of their current context, which includes culture. However, little of the work on culture in pharmacy education specifically defines what these cultures are, and equally importantly how this understanding of culture can be used to make changes, improve student learning, and ultimately develop pharmacists better prepared to improve patient outcomes. Organizational culture has been defined in a multitude of ways in the literature. Martin's three-perspectives approach, which combines integrated, differentiated, and fragmented understandings, offers one way to approach defining culture and leveraging that definition of change. Furthermore, the organizational culture profile (OCP), is one tool that can be used to identify and differentiate between Martin's three perspectives. Culture plays an important role in academic pharmacy, but before it can reach its highest potential in improving student outcomes, and faculty experience, it must be completely understood. Martin's approach and the OCP offer one way to achieve this objective. Copyright © 2017 Elsevier Inc. All rights reserved.

  13. Climate change and livestock system in mountain: Understanding from Gandaki River basin of Nepal Himalaya.

    Science.gov (United States)

    Dahal, P.; Shrestha, N. S.; Krakauer, N.; Lakhankar, T.; Panthi, J., Sr.; Pradhanang, S.; Jha, A. K.; Shrestha, M.; Sharma, M.

    2015-12-01

    In recent years climate change has emerged as a source of vulnerability for agro-livestock smallholders in Nepal where people are mostly dependent on rain-fed agriculture and livestock farming for their livelihoods. There is a need to understand and predict the potential impacts of climate change on agro-livestock farmer to develop effective mitigation and adaptation strategies. To understand dynamics of this vulnerability, we assess the farmers' perceptions of climate change, analysis of historical and future projections of climatic parameters and try to understand impact of climate change on livestock system in Gandaki River Basin of Central Nepal. During the period of 1981-2012, as reported by the mountain communities, the most serious hazards for livestock system and agriculture are the increasing trend of temperature, erratic rainfall patterns and increase in drought. Poor households without irrigated land are facing greater risks and stresses than well-off people. Analysis of historical climate data also supports the farmer perception. Result shows that there is increasing trend of temperature but no consistent trend in precipitation but a notable finding is that wet areas are getting wetter and dry areas getting drier. Besides that, there is increase in percentage of warm days and nights with decrease in the cool nights and days. The magnitude of the trend is found to be higher in high altitude. Trend of wet days has found to be increasing with decreasing in rainy days. Most areas are characterized by increases in both severity and frequency of drought and are more evident in recent years. The summers of 2004/05/06/09 and winters of 2006/08/09 were the worst widespread droughts and have a serious impact on livestock since 1981. Future projected change in temperature and precipitation obtained from downscaling the data global model by regional climate model shows that precipitation in central Nepal will change by -8% to 12% and temperature will change by 1

  14. Understanding sudden environmental and societal change through coupled geochronological and artefact shape analyses

    DEFF Research Database (Denmark)

    Hoggard, Christian Steven; Sauer, Florian Rudolf; Zernack, Anke Verena

    Over the last twenty years, advances in geometric morphometric methodologies have revolutionised how archaeologists understand changes in artefact shape and form (size plus shape) throughout the Quaternary period. Such methodologies provide a high resolution of artefact coverage, and allow...... a critical analysis of previous taxonomic classificatory schemas and human tool-use in the past. Despite this, methodologies into artefact shape through geometric morphometrics have not been integrated within extensive geochronological data to better understand periods of high environmental stress and......, with respect to archaeology, how past societies reacted to such stress. The Laacher See volcanic eruption (c. 13,000 BP) in western Germany is believed, given its hypothesised characteristics, to have had profound impact on the lifeways of hunter-gatherers towards the end of the Final Palaeolithic (Riede, 2017...

  15. CEOS Theory: A Comprehensive Approach to Understanding Hard to Maintain Behaviour Change.

    Science.gov (United States)

    Borland, Ron

    2017-03-01

    This paper provides a brief introduction to CEOS theory, a comprehensive theory for understanding hard to maintain behaviour change. The name CEOS is an acronym for Context, Executive, and Operational Systems theory. Behaviour is theorised to be the result of the moment by moment interaction between internal needs (operational processes) in relation to environmental conditions, and for humans this is augmented by goal-directed, executive action which can transcend immediate contingencies. All behaviour is generated by operational processes. Goal-directed behaviours only triumph over contingency-generated competing behaviours when operational processes have been sufficiently activated to support them. Affective force can be generated around executive system (ES) goals from such things as memories of direct experience, vicarious experience, and emotionally charged communications mediated through stories the person generates. This paper makes some refinements and elaborations of the theory, particularly around the role of feelings, and of the importance of stories and scripts for facilitating executive action. It also sketches out how it reconceptualises a range of issues relevant to behaviour change. CEOS provides a framework for understanding the limitations of both informational and environmental approaches to behaviour change, the need for self-regulatory strategies and for taking into account more basic aspects of human functioning. © 2016 The Authors. Applied Psychology: Health and Well-Being published by John Wiley & Sons Ltd on behalf of International Association of Applied Psychology.

  16. Taking part in 'Understanding Your Child's Behaviour' and positive changes for parents.

    Science.gov (United States)

    Appleton, Rebecca; Douglas, Hazel; Rheeston, Mary

    2016-02-01

    ABSTRACT The Solihull Approach's Understanding Your Child's Behaviour (UYCB) is a 10-session group for parents run by facilitators in their local area. Previous studies have shown that parents enjoy taking part in the group, and that UYCB can reduce problematic behaviours in children. Building on this research, the present study evaluated whether UYCB programmes run more recently in the UK were rated as positively by parents, and what positive changes were reported by parents. Both quantitative and qualitative data was analysed from 105 parents who took part in 18 different UYCB groups between 2012 and 2015. The results of this analysis showed that 90 per cent of parents found the group a great place to relax and share experiences, 93 per cent rated the group as 'great' for helping them understand their child, and 92 per cent gave a 'great' rating for helping them identify changes. In addition to this, content analysis showed that 47 per cent of parents reported having a better relationship with their child after taking part, 42 per cent said they were more confident, and importantly six per cent reported a significant positive change in their lives generally as a direct result of UYCB.

  17. Prerequisites for understanding climate-change impacts on northern prairie wetlands

    Science.gov (United States)

    Anteau, Michael J.; Wiltermuth, Mark T.; Post van der Burg, Max; Pearse, Aaron T.

    2016-01-01

    The Prairie Pothole Region (PPR) contains ecosystems that are typified by an extensive matrix of grasslands and depressional wetlands, which provide numerous ecosystem services. Over the past 150 years the PPR has experienced numerous landscape modifications resulting in agricultural conversion of 75–99 % of native prairie uplands and drainage of 50–90 % of wetlands. There is concern over how and where conservation dollars should be spent within the PPR to protect and restore wetland basins to support waterbird populations that will be robust to a changing climate. However, while hydrological impacts of landscape modifications appear substantial, they are still poorly understood. Previous modeling efforts addressing impacts of climate change on PPR wetlands have yet to fully incorporate interacting or potentially overshadowing impacts of landscape modification. We outlined several information needs for building more informative models to predict climate change effects on PPR wetlands. We reviewed how landscape modification influences wetland hydrology and present a conceptual model to describe how modified wetlands might respond to climate variability. We note that current climate projections do not incorporate cyclical variability in climate between wet and dry periods even though such dynamics have shaped the hydrology and ecology of PPR wetlands. We conclude that there are at least three prerequisite steps to making meaningful predictions about effects of climate change on PPR wetlands. Those evident to us are: 1) an understanding of how physical and watershed characteristics of wetland basins of similar hydroperiods vary across temperature and moisture gradients; 2) a mechanistic understanding of how wetlands respond to climate across a gradient of anthropogenic modifications; and 3) improved climate projections for the PPR that can meaningfully represent potential changes in climate variability including intensity and duration of wet and dry periods. Once

  18. Understanding Changes in Modeled Land Surface Characteristics Prior to Lightning-Initiated Holdover Fire Breakout

    Science.gov (United States)

    Schultz, Christopher J.; Case, Jonathan L.; Hain, Christopher R.; White, Kristopher; Wachter, J. Brent; Nauslar, Nicholas; MacNamara, Brittany

    2018-01-01

    Lightning initiated wildfires are only 16% of the total number of wildfires within the United States, but account for 56% of the acreage burned. One of the challenges with lightning-initiated wildfires is their ability to "holdover" which means smolder for up to 2+ weeks before breaking out into a full fledged fire. This work helps characterize the percentage of holdover events due to lightning, and helps quantify changes in the land surface characteristics to help understand trends in soil moisture and vegetation stress that potentially contribute to the fire breaking out into a full wildfire.

  19. Is the metaphor of 'barriers to change' useful in understanding implementation? Evidence from general medical practice.

    Science.gov (United States)

    Checkland, Kath; Harrison, Stephen; Marshall, Martin

    2007-04-01

    To investigate how general medical practices in the UK react to bureaucratic initiatives, such as National Health Service (NHS) National Service Frameworks (NSFs), and to explore the value of the metaphor of 'barriers to change' for understanding this. Interviews, non-participant observation and documentary analysis within case studies of four practices in northern England. The practices had not actively implemented NSFs. At interview, various 'barriers' that had prevented implementation were listed, including the complexity of the documents and lack of time. Observation suggested that these barriers were constructions used by the participants to make sense of the situation in which they found themselves. The metaphor of 'removing barriers to change' was of limited use in a context where non-implementation of policy was an emergent property of underlying organizational realities, likely to be modifiable only if these realities were addressed.

  20. Heating up Climate Literacy Education: Understanding Teachers' and Students' Motivational and Affective Response to Climate Change

    Science.gov (United States)

    Sinatra, G. M.

    2011-12-01

    presentation, findings from a research program exploring the role of "hot constructs" such as motivation and emotion in teaching and learning about climate change will be shared. In these studies, we have explored constructs such as emotions, misconceptions, plausibility perceptions, understanding deep time, and dispositions towards uncertainty. Results from four studies will be highlighted. In the first study, we demonstrated that comfort with ambiguity and a willingness to think deeply about issues predicted both change in attitudes towards climate change and expressed willingness to take mitigative action in college students (Sinatra, et al. 2011). In another study with college students, we demonstrated that knowledge of deep time and plausibility perceptions of human-induced climate change were related to students' understanding of weather and climate distinctions (Lombardi & Sinatra, 2010). In a study with graduate education students, we found that misconceptions about climate change were associated with strong emotions (Broughton, et al., 2011). With practicing teachers we have found that emotions, specifically anger and hopelessness, were significant predictors of plausibility perceptions of human-induced climate change (Lombardi & Sinatra, in preparation). The implications for climate change education of the findings will be discussed.

  1. Conceptual understanding of climate change with a globally resolved energy balance model

    Energy Technology Data Exchange (ETDEWEB)

    Dommenget, Dietmar [Monash University, School of Mathematical Sciences, Melbourne, VIC (Australia); Floeter, Janine [Leibniz Institute for Marine Sciences, Kiel (Germany)

    2011-12-15

    The future climate change projections are essentially based on coupled general circulation model (CGCM) simulations, which give a distinct global warming pattern with arctic winter amplification, an equilibrium land-sea warming contrast and an inter-hemispheric warming gradient. While these simulations are the most important tool of the Intergovernmental Panel on Climate Change (IPCC) predictions, the conceptual understanding of these predicted structures of climate change and the causes of their uncertainties is very difficult to reach if only based on these highly complex CGCM simulations. In the study presented here we will introduce a very simple, globally resolved energy balance (GREB) model, which is capable of simulating the main characteristics of global warming. The model shall give a bridge between the strongly simplified energy balance models and the fully coupled 4-dimensional complex CGCMs. It provides a fast tool for the conceptual understanding and development of hypotheses for climate change studies, which shall build a basis or starting point for more detailed studies of observations and CGCM simulations. It is based on the surface energy balance by very simple representations of solar and thermal radiation, the atmospheric hydrological cycle, sensible turbulent heat flux, transport by the mean atmospheric circulation and heat exchange with the deeper ocean. Despite some limitations in the representations of the basic processes, the models climate sensitivity and the spatial structure of the warming pattern are within the uncertainties of the IPCC models simulations. It is capable of simulating aspects of the arctic winter amplification, the equilibrium land-sea warming contrast and the inter-hemispheric warming gradient with good agreement to the IPCC models in amplitude and structure. The results give some insight into the understanding of the land-sea contrast and the polar amplification. The GREB model suggests that the regional inhomogeneous

  2. Twentieth century North Atlantic climate change. Part II: Understanding the effect of Indian Ocean warming

    Energy Technology Data Exchange (ETDEWEB)

    Hoerling, M.P.; Xu, T.; Bates, G.T. [Climate Diagnostics Center NOAA, Boulder, CO 80305-3328 (United States); Hurrell, J.W.; Phillips, A.S. [National Center for Atmospheric Research, Boulder, CO (United States)

    2004-09-01

    Ensembles of atmospheric general circulation model (AGCM) experiments are used in an effort to understand the boreal winter Northern Hemisphere (NH) extratropical climate response to the observed warming of tropical sea surface temperatures (SSTs) over the last half of the twentieth Century. Specifically, we inquire about the origins of unusual, if not unprecedented, changes in the wintertime North Atlantic and European climate that are well described by a linear trend in most indices of the North Atlantic Oscillation (NAO). The simulated NH atmospheric response to the linear trend component of tropic-wide SST change since 1950 projects strongly onto the positive polarity of the NAO and is a hemispheric pattern distinguished by decreased (increased) Arctic (middle latitude) sea level pressure. Progressive warming of the Indian Ocean is the principal contributor to this wintertime extratropical response, as shown through additional AGCM ensembles forced with only the SST trend in that sector. The Indian Ocean influence is further established through the reproducibility of results across three different models forced with identical, idealized patterns of the observed warming. Examination of the transient atmospheric adjustment to a sudden ''switch-on'' of an Indian Ocean SST anomaly reveals that the North Atlantic response is not consistent with linear theory and most likely involves synoptic eddy feedbacks associated with changes in the North Atlantic storm track. The tropical SST control exerted over twentieth century regional climate underlies the importance of determining the future course of tropical SST for regional climate change and its uncertainty. Better understanding of the extratropical responses to different, plausible trajectories of the tropical oceans is key to such efforts. (orig.)

  3. Using Geomorphic Change Detection to Understand Restoration Project Success Relative to Stream Size

    Science.gov (United States)

    Yeager, A.; Segura, C.

    2017-12-01

    Large wood (LW) jams have long been utilized as a stream restoration strategy to create fish habitat, with a strong focus on Coho salmon in the Pacific Northwest. These projects continue to be implemented despite limited understanding of their success in streams of different size. In this study, we assessed the changes triggered by LW introductions in 10 alluvial plane bed reaches with varying drainage areas (3.9-22 km²) and bankfull widths (6.4-14.7 m) in one Oregon Coast Range basin. In this basin, LW was added in an effort to improve winter rearing habitat for Coho salmon. We used detailed topographic mapping (0.5 m² resolution) to describe the local stream and floodplain geometry. Pebble counts were used to monitor changes in average substrate size after the LW addition. Field surveys were conducted immediately after the LW were installed, in the summer of 2016, and one year after installation, in the summer of 2017. We used geomorphic change detection analysis to quantify the amount of scour and deposition at each site along with changes in average bankfull width. Then we determined the relative amount of change among all sites to identify which size stream changed the most. We also modeled fluctuations in water surface elevation at each site, correlating frequency and inundation of the LW with geomorphic changes detected from the topographic surveys. Preliminary results show an increase in channel width and floodplain connectivity at all sites, indicating an increase in off-channel habitat for juvenile Coho salmon. Bankfull widths increased up to 75% in small sites and up to 25% in large sites. Median grain size became coarser in large streams (increased up to 20%), while we saw a similar amount of fining at smaller sites. The overall increase in channel width is compensated by an overall decrease in bed elevation at both large and small sites, suggesting the maintenance of overall geomorphic equilibrium. Further work will include quantifying these

  4. The Crucible simulation: Behavioral simulation improves clinical leadership skills and understanding of complex health policy change.

    Science.gov (United States)

    Cohen, Daniel; Vlaev, Ivo; McMahon, Laurie; Harvey, Sarah; Mitchell, Andy; Borovoi, Leah; Darzi, Ara

    2017-05-11

    The Health and Social Care Act 2012 represents the most complex National Health Service reforms in history. High-quality clinical leadership is important for successful implementation of health service reform. However, little is known about the effectiveness of current leadership training. This study describes the use of a behavioral simulation to improve the knowledge and leadership of a cohort of medical doctors expected to take leadership roles in the National Health Service. A day-long behavioral simulation (The Crucible) was developed and run based on a fictitious but realistic health economy. Participants completed pre- and postsimulation questionnaires generating qualitative and quantitative data. Leadership skills, knowledge, and behavior change processes described by the "theory of planned behavior" were self-assessed pre- and postsimulation. Sixty-nine medical doctors attended. Participants deemed the simulation immersive and relevant. Significant improvements were shown in perceived knowledge, capability, attitudes, subjective norms, intentions, and leadership competency following the program. Nearly one third of participants reported that they had implemented knowledge and skills from the simulation into practice within 4 weeks. This study systematically demonstrates the effectiveness of behavioral simulation for clinical management training and understanding of health policy reform. Potential future uses and strategies for analysis are discussed. High-quality care requires understanding of health systems and strong leadership. Policymakers should consider the use of behavioral simulation to improve understanding of health service reform and development of leadership skills in clinicians, who readily adopt skills from simulation into everyday practice.

  5. Perfectly Reasonable in a Practical World: Understanding Chemistry Teacher Responses to a Change Proposal

    Science.gov (United States)

    Westbroek, Hanna; Janssen, Fred; Doyle, Walter

    2017-12-01

    Curriculum ideals often get compromised as a curriculum moves through its various levels of representation. Across the different science reforms, this process of slippage is clearly present. Research shows that teacher subject matter knowledge, PCK, beliefs and context factors all influence implementation. Professional development arrangements focus on fixing deficiencies in teachers' knowledge, beliefs or work context. This approach has not solved the problem of slippage, as we still do not understand what mechanisms operate when teachers make decisions about change proposals. In this study, we unpacked the decision mechanisms of three highly qualified chemistry teachers who subsequently adapted an innovative context-based chemistry unit. In spite of a state of the art professional development arrangement and the teachers being highly qualified, slippage occurred. The teachers' goal systems were used to interpret their reasoning. A goal system is a context-dependent, within-person mental construct that consists of a hierarchy of a person's goals and means in pursuit of a task. We showed that all three teachers adopted or redesigned elements of the change proposals to meet their core goals, i.e., goals that had multiple connections with other goals. This indicated that the adaptations teachers made were perfectly reasonable ways to serve their professional goals. For change to happen, we contend that one should begin with ways to connect teachers' core goals with the lesson or unit goal demands of a proposed innovation. Change emerges from the adaptions teachers make in the service of their core goals.

  6. Smoking cessation: an application of theory of planned behavior to understanding progress through stages of change.

    Science.gov (United States)

    Bledsoe, Linda K

    2006-07-01

    The purpose of this research was to investigate variables relevant to smoking cessation early in the process of change through an application of the Theory of Planned Behavior [Ajzen, I. (1985). From intentions to actions: A theory of planned behavior. In J. Kuhl and J. Beckman (Eds). Action-control: From cognition to behavior (pp.11-39). Heidelberg: Springer.] to the temporal structure provided by the Transtheoretical Model. Study 1 was a preliminary elicitation study (n=68) conducted to ground the concepts used in the model testing in Study 2 [Ajzen, I., Fishbein, M. (1980). Understanding attitudes and predicting social behavior, Englewood Cliffs, NJ: Prentice-Hall.]. Study 2 tested the proposed model fit with data from a sample of 230 adult smokers. Structural equation modeling did not support the Theory of Planned Behavior as a model of motivation for progress through the stages of change and highlighted measurement issues with perceived behavioral control. A modified model using the Theory of Reasoned Action provided a good fit to the data, accounting for approximately 64% of the variance in intention to quit smoking and stage of change. This research addresses the need for a more complete theoretical rationale for progress through stages of change.

  7. Managing madness, murderers and paedophiles: Understanding change in the field of English forensic psychiatry.

    Science.gov (United States)

    McDonald, Ruth; Furtado, Vivek; Vollm, Birgit

    2016-09-01

    This paper discusses changes occurring in the field of English forensic psychiatry which appear to be linked to feelings of discomfort amongst medical professionals who manage care in such settings. These changes are neither the result of a sudden 'shock' to the system, nor small improvisations at the margins, but instead appear to reflect a growing perception amongst psychiatrists of accepted field practice as inadequate for some types of patients. To understand how feelings and emotions are implicated in these changes we draw on and develop the work of Pierre Bourdieu to suggest that changes must be seen in the context of field tensions, which have implications for habitus. However, we do not view feelings of discomfort merely as a response to these tensions. Instead we suggest a more dynamic process. The habitus plays a key role in structuring what people pay attention to, how they perceive it and therefore, whether they experience particular feelings in the first place. Copyright © 2016 Elsevier Ltd. All rights reserved.

  8. Statistical Primer for Athletic Trainers: The Essentials of Understanding Measures of Reliability and Minimal Important Change.

    Science.gov (United States)

    Riemann, Bryan L; Lininger, Monica R

    2018-01-01

      To describe the concepts of measurement reliability and minimal important change.   All measurements have some magnitude of error. Because clinical practice involves measurement, clinicians need to understand measurement reliability. The reliability of an instrument is integral in determining if a change in patient status is meaningful.   Measurement reliability is the extent to which a test result is consistent and free of error. Three perspectives of reliability-relative reliability, systematic bias, and absolute reliability-are often reported. However, absolute reliability statistics, such as the minimal detectable difference, are most relevant to clinicians because they provide an expected error estimate. The minimal important difference is the smallest change in a treatment outcome that the patient would identify as important.   Clinicians should use absolute reliability characteristics, preferably the minimal detectable difference, to determine the extent of error around a patient's measurement. The minimal detectable difference, coupled with an appropriately estimated minimal important difference, can assist the practitioner in identifying clinically meaningful changes in patients.

  9. Global change and modern coral reefs: New opportunities to understand shallow-water carbonate depositional processes

    Science.gov (United States)

    Hallock, Pamela

    2005-04-01

    Human activities are impacting coral reefs physically, biologically, and chemically. Nutrification, sedimentation, chemical pollution, and overfishing are significant local threats that are occurring worldwide. Ozone depletion and global warming are triggering mass coral-bleaching events; corals under temperature stress lose the ability to synthesize protective sunscreens and become more sensitive to sunlight. Photo-oxidative stress also reduces fitness, rendering reef-building organisms more susceptible to emerging diseases. Increasing concentration of atmospheric CO 2 has already reduced CaCO 3 saturation in surface waters by more than 10%. Doubling of atmospheric CO 2 concentration over pre-industrial concentration in the 21st century may reduce carbonate production in tropical shallow marine environments by as much as 80%. As shallow-water reefs decline worldwide, opportunities abound for researchers to expand understanding of carbonate depositional systems. Coordinated studies of carbonate geochemistry with photozoan physiology and calcification, particularly in cool subtropical-transition zones between photozoan-reef and heterotrophic carbonate-ramp communities, will contribute to understanding of carbonate sedimentation under environmental change, both in the future and in the geologic record. Cyanobacteria are becoming increasingly prominent on declining reefs, as these microbes can tolerate strong solar radiation, higher temperatures, and abundant nutrients. The responses of reef-dwelling cyanobacteria to environmental parameters associated with global change are prime topics for further research, with both ecological and geological implications.

  10. The nature of science and the preservice elementary teacher: Changes in understanding and practice

    Science.gov (United States)

    Rivas, Michael Gerald

    This action research project studies preservice elementary teachers in a science methods course. The purpose of this research project was to enhance preservice teachers' understanding of specific nature of science (NOS) tenets so as to promote equity and access within the elementary science classroom. In particular, I chose five NOS tenets that were listed in the first chapter of the AAAS (1989) document titled, "The Nature of Science," and connected them to equitable educational goals and practices. The theoretical framework guiding this study came from bodies of scholarship relating to the NOS, social constructivism, and action research. This study addressed the following three questions: (1) What opportunities were provided the preservice teachers so that they could enhance their understandings of the NOS? (2) What were the changes in preservice teachers' understanding of the NOS as a result? (3) How did the prospective teachers' understandings of the NOS translate into their classroom practice? The analysis revealed that the science methods course's operational curriculum consisted of implicit and explicit teaching of the NOS, as well as intended and untended NOS tenets. The prospective teachers initially held a limited view of the NOS, but by the end of the course their view had been enhanced. In addition, the participants made direct connections between their new understandings of the NOS and equity and access in the science classroom. In their teaching, the preservice teachers as a group implicitly taught all five of the NOS tenets. In fact, a majority taught three of the five intended tenets. Explicitly, only one tenet was taught, but it was taught with a direct connection to making the science classroom more inclusive. The findings of this study indicate that preservice teachers can have their views of the NOS enhanced even though they may have experienced years of deficient science instruction. They pointed out that this enhanced view of the NOS can be

  11. Technical aspects in understanding effects of gamma irradiation on flower colour changes in Dendrobium Sonia

    International Nuclear Information System (INIS)

    Sakinah Ariffin; Azhar Mohammad; Ratnam, W.

    2012-01-01

    Colour is one of the most important traits in orchids and has created great interest in breeding programmes. Gamma irradiation is an alternative way for generation of somaclonal variation for new flower colours. Phenotypic changes are usually observed during screening and selection of mutants. Understanding of targeted gene expression level and evaluation of the changes facilitate in the development of functional markers for selection of desired flower colour mutants. Four Dendrobium orchid sequences (NCBI accessions: AM490639, AY41319, FM209429 and DQ462460) were selected to design gene specific primers based on information for chalcone synthase (CHS) from NCBI database. Quantitative real-time PCR (qPCR) was used to understand flower colour expression quantitatively derived from the CHS gene activities in different flower tissues (petal and sepal) from control Dendrobium Sonia (red purple), mutant DS 35-1/M (purple pink) and mutant DS 35-WhiteA. It was found that expression of CHS gene was highest in sepals of white flowers and lowest in both sepals and petals of purple pink flowers. Genomic DNA was amplified and PCR products were sequenced, aligned and compared. Sequence variations of CHS partial gene in Dendrobium Sonia mutants with different flower colour showed that two protein positions have been changed as compared to the control. These non-synonymous mutations may have contributed to the colour alterations in the white and purple pink mutants. This paper describes important procedures to quantify gene expression such as RNA isolation (quantity and quality), cDNA synthesis and primer design steps for CHS genes. (author)

  12. From Oil Crisis to Climate Change. Understanding CO2 Emission Trends in IEA Countries

    International Nuclear Information System (INIS)

    Unander, F.

    2003-11-01

    OECD CO2 emissions from fuel combustion increased 13% between 1990 and 2001. This signals an important shift since, over the 1973 to 1990 period, emissions only increased by 3.4%. As a result, CO2 emissions from energy use (fuel combustion) contributed 81.1% of total OECD greenhouse gas emissions in 2001 compared to 77.7% in 1990. As these figures make clear, reducing CO2 emissions from fuel combustion constitutes a key challenge to combat climate change. Developing and successfully implementing the most efficient policies for reducing CO2 emissions requires a good understanding of how factors such as income, prices, demography, economic structure, lifestyle, climate, energy efficiency and fuel mix affect energy use and resulting CO2 emissions. This paper presents selected results from the analysis of CO2 developments included in the IEA publication 'From Oil Crisis to Climate Challenge: 30 Years of Energy Use in IEA Countries'. The paper gives a brief overview of aggregate CO2 emission trends and of how recent developments in selected IEA countries compare to emissions levels implied by the Kyoto targets. A deeper understanding of the aggregate trends is provided by showing results from a decomposition analysis and by discussing developments in key end-use sectors. The full publication presents a more detailed analysis of how various factors have shaped energy use patterns and CO2 emissions since 1973. The analysis draws on a newly developed database with detailed information on energy use in the manufacturing, household, service and transport sectors. The database represents the most disaggregated information available on a consistent basis across countries and sectors. The study uses quantitative measures to illustrate the forces that drive or restrain energy use. These measures - or indicators - include: activities such as manufacturing output or heated-floor-area of homes; structural developments such as changes in manufacturing output mix or changes in the

  13. Understanding Indian Institutional Networks and Participation in Water Management Adaptation to Climate Change

    Science.gov (United States)

    Azhoni, A.; Holman, I.; Jude, S.

    2014-12-01

    Adaptation to climate change for water management involves complex interactions between different actors and sectors. The need to understand the relationships between key stakeholder institutions (KSIs) is increasingly recognized. The complexity of water management in India has meant that enhancing adaptive capacity through improved inter-institutional networks remains a challenge for both government and non-governmental institutions. To analyse such complex inter-actions this study has used Social Network and Stakeholder Analysis tools to quantify the participation of, and interactions between, each KSI in the climate change adaptation and water discourse based on keyword analysis of their online presence. Using NodeXL, a Social Network Analysis tool, network diagrams have been used to evaluate the inter-relationships between these KSIs. Semi-structured interviews were conducted with twenty-five KSIs to identify the main barriers to adaptation and to triangulate the findings of the e-documents analysis. The analysis found that there is an inverse relationship between institutions' reference to water and climate change in their web-documents. Most institutions emphasize mitigation rather than adaptation. Bureaucratic delays, poor coordination between the KSIs, unclear policies and systemic deficiencies are identified as key barriers to improving adaptive capacity within water management to climate change. However, the increasing attention being given to the perceived climate change impacts on the water sector and improving the inter-institutional networks are some of the opportunities for Indian water institutions. Although websites of Union Government Institutions seldom directly hyperlink to one another, they are linked through "bridging" websites which have the potential to act as brokers for enhancing adaptive capacity. The research has wider implications for analysis of complex inter-disciplinary and inter-institutional issues involving multi stakeholders.

  14. Understanding organization and institutional changes for management of environmental affairs in the Brazilian petroleum sector

    International Nuclear Information System (INIS)

    Oliveira, J.A.P. de

    2003-01-01

    This article analyzes how governments and an oil company adapted their institutional and organization frameworks to manage actual and potential environmental impacts of oil-related activities in Brazil. Two major factors are important for understanding these changes. First, the monopoly of the state to explore and produce oil is over. Foreign companies have entered Brazil and increased the competitiveness of the oil sector. Second, major oil spills into waterways in recent years resulted in severe fines and an increasing outcry from government and civil society representatives for greater control over oil activities. These two factors raised a debate about what are, or should be, the roles of various stakeholders involved in controlling oil activities and their impacts on the environment. Legislative changes assigned different roles to the state oil company, to a newly created regulatory agency, to the Navy and to federal and state environmental agencies. Because many of the legal changes were not well defined, accountability among institutional actors remained unclear and institutional conflicts about who is accountable for what were likely to occur. As well, government organizations, public prosecutors, media and civil society increasingly influenced the regulation of both government agencies and companies. As a result, these responded to regulatory change and market forces by changing their relations with external stakeholders and their organizational arrangements for environmental management. This article identifies some of the institutional conflicts in selected case studies from the oil industry, the difficulties in clarifying regulatory roles within the industry, and responses in terms of the environmental strategies of regulatory bodies and oil companies, specifically the Brazilian state company, Petrobas. (author)

  15. Understanding resilience of pastoralists to climate change and variability in the Southern Afar Region, Ethiopia

    Directory of Open Access Journals (Sweden)

    Muluken Mekuyie

    Full Text Available Change in climate and climate extremes are acknowledged as a vital challenge to pastoral production systems. Alternative systems that are accessible to a household in order to make a living could determine the household’s resilience at a given point in time. This study was conducted in the Southern Afar region in Ethiopia to understand the resilience of pastoralists to climate change and variability. A household questionnaire survey and focus group discussions were employed to collect primary data at household level. A total of 250 pastoral households were sampled using stratified random sampling. The data obtained were analysed using descriptive statistics and principal component analysis. The resilience of households to climate shocks and stresses was determined using a two-step modelling approach by clustering households into livelihood groups, gender and districts. The results indicated that agro-pastoral households were more resilient than pastoralists to climate-induced shock. Furthermore, households in the Gewane district were more resilient than those in the Amibara district. Female-headed households were less resilient than male-headed households. Enhancing livestock assets and productivity, social safety nets, access to market, credit, extension services and education, improving irrigation crop farming, and providing farm inputs significantly enhanced the resilience of pastoralists to climate change and variability. Keywords: Asset, Livelihood, Climate shock, Pastoralist, Resilience

  16. Effectiveness of Conceptual Change Text-oriented Instruction on Students' Understanding of Energy in Chemical Reactions

    Science.gov (United States)

    Taştan, Özgecan; Yalçınkaya, Eylem; Boz, Yezdan

    2008-10-01

    The aim of this study is to compare the effectiveness of conceptual change text instruction (CCT) in the context of energy in chemical reactions. The subjects of the study were 60, 10th grade students at a high school, who were in two different classes and taught by the same teacher. One of the classes was randomly selected as the experimental group in which CCT instruction was applied, and the other as the control group in which traditional teaching method was used. The data were obtained through the use of Energy Concept Test (ECT), the Attitude Scale towards Chemistry (ASC) and Science Process Skill Test (SPST). In order to find out the effect of the conceptual change text on students' learning of energy concept, independent sample t-tests, ANCOVA (analysis of covariance) and ANOVA (analysis of variance) were used. Results revealed that there was a statistically significant mean difference between the experimental and control group in terms of students' ECT total mean scores; however, there was no statistically significant difference between the experimental and control group in terms of students' attitude towards chemistry. These findings suggest that conceptual change text instruction enhances the understanding and achievement.

  17. Revolutionary composite joining method; from an aerospace thesis research to founding a new company

    NARCIS (Netherlands)

    Bergman, A.

    2014-01-01

    In 2011, Peter Madlener started his graduation thesis at the Aerospace Engineering faculty on a new joining technology for composite sandwich panels. The promising results gained in this thesis led to the foundation of MOCS: a young company with the ambitious goal of introducing a revolutionary

  18. Apologies as Politeness Strategies Expressed by Characters in "Revolutionary Road" Movie

    Directory of Open Access Journals (Sweden)

    Elham Abedi

    2016-11-01

    Full Text Available This research aimed to investigate kinds of offences that motivate the characters in the movie "Revolutionary Road" to deliver their apology and to describe the way the characters express their apologies. The study used Trosborg's apology strategies and Holmes' social dimensions of communication and kinds of offences finding, Hymes' ethnography of communication with SPEAKING formula. The data of the research were taken from apology expressions employed in the movie entitled "Revolutionary Road". The corpus included the sentences containing apology expressions following an offence, and other supporting expressions employed by the characters in the movie "Revolutionary Road". The dialogues containing apology expressions and the types of offenses from the apology expressions were transcribed. The result showed that the kinds of offenses were infringement on space, infringement on talk, infringement on time, infringement on possession and social behavior offence. The characters in the movie “Revolutionary Road” expressed their apologies with the simple and complex form of apology strategies both directly and indirectly. They also delivered their apologies in high tone and low tone. They also showed nonverbal expressions in apologizing. The apology strategies were influenced by the degree of severity of the offence and the response given by the addressee. The employing of apology strategy in apologizing was influenced by the social distance, the formality of the situation, and the social status of the participants. It is implied that the speech act of apology in different contexts including movies should be regarded and considered by sociolinguistics.

  19. Starting Anew: Exploring the Links between Radio and Journalism Education in Post-Revolutionary Romania.

    Science.gov (United States)

    Hochheimer, John L.; Hochheimer, Joanne Dvorak

    This paper examines the evolution of Romanian radio, as well as some of the inherent problems of journalism education in Romania in the post-revolutionary era. The paper discusses the legacy of repression during the Ceausescu dictatorship, which limited radio services throughout the country and left only one journalism school, a school that…

  20. All that is Banned is Desired: ‘Rebel Documentaries’ and the Representation of Egyptian Revolutionaries

    Directory of Open Access Journals (Sweden)

    Ilka Eickhof

    2016-05-01

    Full Text Available Related to the increasing attention to so-called Egyptian revolutionary graffiti, one can also observe the appearance of “Rebel-Documentaries”, focusing on a similar group of protagonists: young, mostly male (graffiti artists and revolutionaries. In this article, I will take a closer look at a selection of these documentaries and their inherent power structures that frame the representational mechanics with a focus on the western notion of ‘the revolutionary rebel.’ The case examples are: Abdo–Coming of Age in a Revolution (Jakob Gross, 2015; Art War (Marco Wilms, 2014; Al Midan–The Square (Jehane Noujaim, 2013; and The Noise of Cairo–Art, Cairo, and Revolution (Heiko Lange, 2012. All four focus on the role and the supposedly ‘free, rebellious spirit’ of the young generation in Egypt. Although taking different perspectives, the films sketch out a snap shot of a generation that is caught in an ongoing violent revolutionary process by (representing a specific rebellious Egyptian identity. In discussing the works, I will look at different intertwined representational effects that are related to the composition, realization and commercialization of the films. Finally, the article raises questions about the self-positionality of the protagonists as well as to the localization of the films, and the existence of embedded power structures and symbolic capital complicit with neoliberal and other pressures.

  1. 1787 and 1776: Patrick Henry, James Madison, and the Revolutionary Legitimacy of the Constitution.

    Science.gov (United States)

    Banning, Lance

    1988-01-01

    Discusses Patrick Henry's and James Madison's opinions on how the U.S. Constitution should be constructed. Describes how Henry introduced a set of substantive objections which were shared by Antifederalists throughout the country and persuaded many Revolutionaries that the Constitution was essentially at odds with the principles of 1776. (BSR)

  2. latin American literary testimony: historical foreshadowing of gender in the revolutionary discourse of the sixties

    Directory of Open Access Journals (Sweden)

    Victoria García

    2015-06-01

    Full Text Available The foundation of testimonio in Latin American literary field, initiated at the end of the ‘60, makes part of the institutionalization of the Cuban revolution, process where its projection to the rest of Latin America constitued a central problem. This paper studies political preconditions of testimonio. In particular, it analizes certain aspects of Cuban revolutionary discourse that anticipate features eventually developed by the literary genre, in the ways the relation between literature and politics is represented, and in the subjects of discourse that are proposed as embodiments of such relation. The paper introduces the question of Cuban revolution, as regards the exemplary status it acquired in Latin America during the sixties. Then, it examines the literary positioning represented by testimonio, as the corollary of a reflexive reconsideration operated by some Latin American writers and critics, concerning their historical role. Finally, it considers three representative documents of Cuban revolution and its continental projection: History will absolve me, by Fidel Castro, and Reminiscences of the Cuban revolutionary war and Bolivian diary, by Ernesto Guevara. We show the textual configuration of a revolutionary subject whose legitimity emerges not only from a political experience which testimony enunciates, but also from particular ways of living and representing literature in the context of a revolutionary practice. In the end of the sixties, the continental literary field would reaffirm such features as its discourse legitimating criteria, during the institutionalization of testimonio as its privileged genre.

  3. Butterfly effect: understanding and mitigating the local consequences of climate change impacts

    International Nuclear Information System (INIS)

    Lorenz, Donna

    2007-01-01

    Full text: The Butterfly Effect is the notion that tiny differences in initial conditions are amplified in the evolution of a dynamic system and directly affect the eventual outcome. In 1963 mathematician and meteorologist Edward Lorenz proposed that the flapping of a butterfly's wing would cause a disturbance that becomes exponentially amplified so as to eventually affect large-scale atmospheric motion. This was to illustrate the 'sensitive dependence on initial conditions'; sensitivity also true in affecting the extent of damages experienced as a result of climate change. In a climate change context, The Butterfly Effect suggests the local consequences of climate change impacts will depend on their interaction with the economic, environmental, institutional, technological and demographic attributes unique to a city or region. It is this mix of factors that will determine the extent, both positively and negatively, to which climate change will be experienced locally. For a truly effective climate change response, it is imperative that regional risk assessments and adaptation strategies take into account not only the projected impacts but the full range of flow-on implications of those impacts and their sensitivity factors. Understanding of the sensitivity factors that will amplify or mitigate climate change impacts and implications enables government and business leaders to calculate the likely extent of localised damages if no adaptation is undertaken. This allows industries and communities to evaluate the likely significance of a particular impact and to consider how to adjust or counter the sensitivity factor to build resilience and reduce vulnerability. Thus, it also assists in the local prioritisation of issues and responses. Such a strategic response can also mean the required adaptation measures may be less extensive and thereby require less cost and time to implement. This paper discusses the flow-on implications of Australia's projected climate change

  4. Towards understanding hydroclimatic change in Victoria, Australia – preliminary insights into the "Big Dry"

    Directory of Open Access Journals (Sweden)

    A. S. Kiem

    2010-03-01

    Full Text Available Since the mid-1990s the majority of Victoria, Australia, has experienced severe drought conditions (i.e. the "Big Dry" characterized by streamflow that is the lowest in approximately 80 years of record. While decreases in annual and seasonal rainfall totals have also been observed, this alone does not seem to explain the observed reduction in flow. In this study, we investigate the large-scale climate drivers for Victoria and demonstrate how these modulate the regional scale synoptic patterns, which in turn alter the way seasonal rainfall totals are compiled and the amount of runoff per unit rainfall that is produced. The hydrological implications are significant and illustrate the need for robust hydrological modelling, that takes into account insights into physical mechanisms that drive regional hydroclimatology, in order to properly understand and quantify the impacts of climate change (natural and/or anthropogenic on water resources.

  5. The contributions of cognitive neuroscience and neuroimaging to understanding mechanisms of behavior change in addiction.

    Science.gov (United States)

    Morgenstern, Jon; Naqvi, Nasir H; Debellis, Robert; Breiter, Hans C

    2013-06-01

    In the last decade, there has been an upsurge of interest in understanding the mechanisms of behavior change (MOBC) and effective behavioral interventions as a strategy to improve addiction-treatment efficacy. However, there remains considerable uncertainty about how treatment research should proceed to address the MOBC issue. In this article, we argue that limitations in the underlying models of addiction that inform behavioral treatment pose an obstacle to elucidating MOBC. We consider how advances in the cognitive neuroscience of addiction offer an alternative conceptual and methodological approach to studying the psychological processes that characterize addiction, and how such advances could inform treatment process research. In addition, we review neuroimaging studies that have tested aspects of neurocognitive theories as a strategy to inform addiction therapies and discuss future directions for transdisciplinary collaborations across cognitive neuroscience and MOBC research. 2013 APA, all rights reserved

  6. Identifying students’ mental models of sound propagation: The role of conceptual blending in understanding conceptual change

    Directory of Open Access Journals (Sweden)

    Zdeslav Hrepic

    2010-09-01

    Full Text Available We investigated introductory physics students’ mental models of sound propagation. We used a phenomenographic method to analyze the data in the study. In addition to the scientifically accepted Wave model, students used the “Entity” model to describe the propagation of sound. In this latter model sound is a self-standing entity, different from the medium through which it propagates. All other observed alternative models contain elements of both Entity and Wave models, but at the same time are distinct from each of the constituent models. We called these models “hybrid” or “blend” models. We discuss how students use these models in various contexts before and after instruction and how our findings contribute to the understanding of conceptual change. Implications of our findings for teaching are summarized.

  7. Schwarzkopf's Gulf War Campaign: Revolutionary Future Strategy or Historic Anomaly?

    National Research Council Canada - National Science Library

    New, Larry

    1996-01-01

    .... and tactical levels General Schwarzkopf. the Commander in Chief of Central Command who led the Gulf War campaign significantly changed his standing operations plan to achieve the results he did, During the crisis planning, Schwarzkopf asked...

  8. Towards a Stochastic Predictive Understanding of Ecosystem Functioning and Resilience to Environmental Changes

    Science.gov (United States)

    Pappas, C.

    2017-12-01

    Terrestrial ecosystem processes respond differently to hydrometeorological variability across timescales, and so does our scientific understanding of the underlying mechanisms. Process-based modeling of ecosystem functioning is therefore challenging, especially when long-term predictions are envisioned. Here we analyze the statistical properties of hydrometeorological and ecosystem variability, i.e., the variability of ecosystem process related to vegetation carbon dynamics, from hourly to decadal timescales. 23 extra-tropical forest sites, covering different climatic zones and vegetation characteristics, are examined. Micrometeorological and reanalysis data of precipitation, air temperature, shortwave radiation and vapor pressure deficit are used to describe hydrometeorological variability. Ecosystem variability is quantified using long-term eddy covariance flux data of hourly net ecosystem exchange of CO2 between land surface and atmosphere, monthly remote sensing vegetation indices, annual tree-ring widths and above-ground biomass increment estimates. We find that across sites and timescales ecosystem variability is confined within a hydrometeorological envelope that describes the range of variability of the available resources, i.e., water and energy. Furthermore, ecosystem variability demonstrates long-term persistence, highlighting ecological memory and slow ecosystem recovery rates after disturbances. We derive an analytical model, combining deterministic harmonics and stochastic processes, that represents major mechanisms and uncertainties and mimics the observed pattern of hydrometeorological and ecosystem variability. This stochastic framework offers a parsimonious and mathematically tractable approach for modelling ecosystem functioning and for understanding its response and resilience to environmental changes. Furthermore, this framework reflects well the observed ecological memory, an inherent property of ecosystem functioning that is currently not

  9. Attitude change through understanding (cognition of the influence of the persuasive language of liturgy

    Directory of Open Access Journals (Sweden)

    Ferdi Kruger

    2016-11-01

    Full Text Available The aim of this article is to argue that the use of language in liturgy during worship services should be meaningful to contribute to persuasion in the lives of the participants in liturgy. Language is a prominent medium to convey meaning. In fact, the essence of liturgy that has to lead to the liturgy of life is in itself a meaningful act. The question regarding the meaning of worship services that people often raise is another reason why research on the influence of liturgy is crucial. This investigation is anchored in research on the importance of cognition in persuasive language use to promote attitude change. The research gathers insights from the fields of language philosophy and cognitive psychology. It is clear that the meaning of words in language can never be separated from people’s understanding of the meaning of language. Communication and communion are not opposites. In the normative phase of this investigation, perspectives from Romans 12 are offered. The renewal of the mind that leads to discernment of God’s will must also lead to a new cognition (understanding or phronesis of each believer’s place within the Body of Christ. The insights gained from language philosophy, cognitive psychology and the normative grounding make it evident that people always try to make sense of what they are experiencing and of what they are observing. The attempt to understand necessitates further reflection on the importance of cognition. Finally, practical theological perspectives are offered to indicate that cognition is important to create a meaningful liturgy. This cognition is anchored in God’s presence during worship services and, therefore, it requires meaningful words from liturgists.

  10. A multiple-proxy approach to understanding rapid Holocene climate change in Southeast Greenland

    Science.gov (United States)

    Davin, S. H.; Bradley, R. S.; Balascio, N. L.; de Wet, G.

    2012-12-01

    The susceptibility of the Arctic to climate change has made it an excellent workshop for paleoclimatological research. Although there have been previous studies concerning climate variability carried out in the Arctic, there remains a critical dearth of knowledge due the limited number of high-resolution Holocene climate-proxy records available from this region. This gap skews our understanding of observed and predicted climate change, and fuels uncertainty both in the realms of science and policy. This study takes a comprehensive approach to tracking Holocene climate variability in the vicinity of Tasiilaq, Southeast Greenland using a ~5.6 m sediment core from Lower Sermilik Lake. An age-depth model for the core has been established using 8 radiocarbon dates, the oldest of which was taken at 4 m down core and has been been dated to approximately 6.2 kyr BP. The bottom meter of the core below the final radiocarbon date contains a transition from cobbles and coarse sand to organic-rich laminations, indicating the termination of direct glacial influence and therefore likely marking the end of the last glacial period in this region. The remainder of the core is similarly organic-rich, with light-to-dark brown laminations ranging from 0.5 -1 cm in thickness and riddled with turbidites. Using this core in tandem with findings from an on-site assessment of the geomorphic history of the locale we attempt to assess and infer the rapid climatic shifts associated with the Holocene on a sub-centennial scale. Such changes include the termination of the last glacial period, the Mid-Holocene Climatic Optimum, the Neoglacial Period, the Medieval Climatic Optimum, and the Little Ice Age. A multiple proxy approach including magnetic susceptibility, bulk organic geochemistry, elemental profiles acquired by XRF scanning, grain-size, and spectral data will be used to characterize the sediment and infer paleoclimate conditions. Additionally, percent biogenic silica by weight has been

  11. Understanding Student Cognition about Complex Earth System Processes Related to Climate Change

    Science.gov (United States)

    McNeal, K. S.; Libarkin, J.; Ledley, T. S.; Dutta, S.; Templeton, M. C.; Geroux, J.; Blakeney, G. A.

    2011-12-01

    The Earth's climate system includes complex behavior and interconnections with other Earth spheres that present challenges to student learning. To better understand these unique challenges, we have conducted experiments with high-school and introductory level college students to determine how information pertaining to the connections between the Earth's atmospheric system and the other Earth spheres (e.g., hydrosphere and cryosphere) are processed. Specifically, we include psychomotor tests (e.g., eye-tracking) and open-ended questionnaires in this research study, where participants were provided scientific images of the Earth (e.g., global precipitation and ocean and atmospheric currents), eye-tracked, and asked to provide causal or relational explanations about the viewed images. In addition, the students engaged in on-line modules (http://serc.carleton.edu/eslabs/climate/index.html) focused on Earth system science as training activities to address potential cognitive barriers. The developed modules included interactive media, hands-on lessons, links to outside resources, and formative assessment questions to promote a supportive and data-rich learning environment. Student eye movements were tracked during engagement with the materials to determine the role of perception and attention on understanding. Students also completed a conceptual questionnaire pre-post to determine if these on-line curriculum materials assisted in their development of connections between Earth's atmospheric system and the other Earth systems. The pre-post results of students' thinking about climate change concepts, as well as eye-tracking results, will be presented.

  12. Understanding the Impact of Anthropogenic and Environmental Changes on Dengue Fever Cases in Puerto Rico

    Science.gov (United States)

    Akanda, A. S.; Serman, E. A.; Couret, J.; Puggioni, G.; Ginsberg, H. S.

    2016-12-01

    Worldwide, there are an estimated 50-100 million cases of dengue fever each year, roughly 30 times the number of cases as 50 years ago. Dengue was introduced to Puerto Rico (PR) in 1963 and it has experienced epidemic activity ever since. There have been 4 large epidemics since 1990, the most recent in 2010 where almost 27,000 cases were reported. Vaccine development remains in the testing stages, and years away from mass distribution. Effective control thus depends on our understanding of the complex relationships between environmental and anthropogenic factors, mosquito vector ecology, and disease epidemiology. Dengue virus is primarily transmitted by Aedes aegypti mosquitoes, which also carry the Zika virus, and humans in urban environments are their preferred hosts. The purpose of our analysis is to identify trends between anthropogenic and environmental changes and dengue fever cases in PR over the past 15 years. Data on housing and population density, percent impervious surface, and percent tree canopy at the municipality level were procured from the U.S. Census Bureau and the Multi-Resolution Land Characteristics Consortium (MLRC) project, respectively. Land cover data from the National Land Cover Database, created by USGS and NOAA, as well as environmental data from the National Climatic Data Center (NCDC), were also used. Smaller land cover and green space analysis studies have been performed for PR, but this is the first study to consider the island as a whole, and in six distinct regions, with regards to increases in dengue fever cases. The results from this study can be used to understand the effects of urbanization and climate change on vector-borne disease transmission in PR and to project the impact of growing sub-urban and urban areas on dengue cases in coming years. Our results could also be used to assess Dengue and Zika transmission in growing megacites of the world, where urban slums provide a favorable habitat for Ae. aegypti and foster

  13. Studying the complexity of change: toward an analytical framework for understanding deliberate social-ecological transformations

    Directory of Open Access Journals (Sweden)

    Michele-Lee Moore

    2014-12-01

    Full Text Available Faced with numerous seemingly intractable social and environmental challenges, many scholars and practitioners are increasingly interested in understanding how to actively engage and transform the existing systems holding such problems in place. Although a variety of analytical models have emerged in recent years, most emphasize either the social or ecological elements of such transformations rather than their coupled nature. To address this, first we have presented a definition of the core elements of a social-ecological system (SES that could potentially be altered in a transformation. Second, we drew on insights about transformation from three branches of literature focused on radical change, i.e., social movements, socio-technical transitions, and social innovation, and gave consideration to the similarities and differences with the current studies by resilience scholars. Drawing on these findings, we have proposed a framework that outlines the process and phases of transformative change in an SES. Future research will be able to utilize the framework as a tool for analyzing the alteration of social-ecological feedbacks, identifying critical barriers and leverage points and assessing the outcome of social-ecological transformations.

  14. Mexico: Pemex caught between revolutionary heritage and the market

    International Nuclear Information System (INIS)

    Rousseau, Isabelle

    2016-01-01

    Some constitutional modifications adopted in Mexico in 2013 marked an important watershed in the history and development of the Mexican oil industry: by opening this sector to private national or foreign investors, they make possible the emergence of an actual energy market. They also put an end to the monopoly of the Mexican public company, Pemex. In this article, the author proposes an historical perspective in order to better understand the influence of the Mexican Constitution of 1917 and of the oil industry nationalisation act of 1938 on the creation and development of the Mexican oil industry

  15. Why understanding the impacts of the changing environment on river basin hydrology matters in Texas?

    Science.gov (United States)

    Gao, H.; Zhao, G.; Lee, K.; Zhang, S.; Shen, X.; Shao, M.; Nickelson, C.

    2017-12-01

    The State of Texas is prone to floods and droughts—both of which are expected to become more frequent, and more intensified, under a changing climate. This has a direct negative effect on agricultural productivity, which is a major revenue source for the state. Meanwhile, with the rapid population growth and economic development, the burden to Texas water resources is exacerbated by the ever increasing demands from users. From a hydrological processes perspective, the direct consequence of the increased impervious area due to urbanization is greater surface runoff and higher flood peaks. Although many reservoirs have been built during the past several decades to regulate river flows and increase water supply, the role of these reservoirs in the context of different future climate change and urbanization scenarios needs to be explored. Furthermore, phytoplankton productivity—an important indicator of coastal ecosystem health— is significantly affected by river discharge. The objective of this presentation is to reveal the importance of understanding the impacts of climate change, urbanization, and flow regulation on Texas river flows, water resources, and coastal water quality. Using state-of-the-art modeling and remote sensing techniques, we will showcase our results over representative Texas river basins and bay areas. A few examples include modeling peak flows in the San Antonio River Basin, evaluating water supply resilience under future drought and urbanization over the Dallas metropolitan area, projecting future crop yields from Texas agricultural lands, and monitoring and forecasting Chlorophyll-a concentrations over Galveston Bay. Results from these studies are expected to provide information relevant to decision making, both with regard to water resources management and to ecosystem protection.

  16. Revolutionary Pressures and Social Movements in Nigeria: The ...

    African Journals Online (AJOL)

    More often than not, social movements by their very nature are predicated on a penchant for change from below which embodies a revolution. An x-ray of the peculiar experience of the Nigerian polity with specific reference to theNiger Delta reveals deep-seated discontent whether expressed or otherwise.Right from the pre ...

  17. Building on IPY Data, Collaborations and Infrastructure to Understand the Changing Poles (Invited)

    Science.gov (United States)

    Bell, R. E.; Krupnik, I.; Hik, D.; Alverson, K. D.; Drinkwater, M. R.

    2010-12-01

    programs in the poles continue to necessitate shared resources, ideas and infrastructure. Goals for the post IPY 2007-9 polar science should include: (1) securing a robust, internationally-coordinated polar-observing infrastructure by sustaining existing IPY elements, complemented by critical new observations to fill identified gaps; (2) building complete ice, ocean, terrestrial and atmospheric data sets to facilitate accurate models of earth systems that will enable prediction and adaptation to future change; (3) recognition that fundamental exploratory science is necessary to ensure our ideas are not too narrow and entrenched; (4) interdisciplinary work must be encouraged to understand the complexity of coupled systems; (5) building on the IPY education and outreach efforts to ensure a vibrant new cohort of polar scientists ready to address polar change and its global ramifications.

  18. Beyond synergy: The revolutionary elements in horizontal technology

    International Nuclear Information System (INIS)

    Hatala, R.

    1994-01-01

    The petroleum industry is undergoing a fundamental restructuring that is changing the shape and texture of the business. Four principles are guiding this restructuring: proactivity, simplicity/focus, flexibility and synergy. These four elements are contained within horizontal technology applications in Canada and are impacting the upstream operating companies and the service and supply sectors. The evolving socio-economic and political environments of these changes within the petroleum industry are examined. The specific resource base potential, financial, regulatory and market forces that support the application of horizontal technology are addressed and their forecast impacts on industry relationships, production and economic trends over the next 5 years are discussed. The blurred distinctions between operating and service sectors will continue such that service entities will participate directly in oil and gas opportunities in consort with operating companies or countries. 4 refs., 3 figs

  19. The Contribution of Conceptual Change Texts Accompanied by Concept Mapping to Eleventh-Grade Students Understanding of Cellular Respiration Concepts

    Science.gov (United States)

    Al khawaldeh, Salem A.; Al Olaimat, Ali M.

    2010-01-01

    The present study conducted to investigate the contribution of conceptual change texts, accompanied by concept mapping instruction to eleventh-grade students' understanding of cellular respiration concepts, and their retention of this understanding. Cellular respiration concepts test was developed as a result of examination of related literature…

  20. Understanding the Role of Microorganisms in Soil Quality and Fertility under changing Climatic Conditions

    Energy Technology Data Exchange (ETDEWEB)

    Dercon, Gerd; Adu-Gyamfi, Joseph; Heiling, Maria; Aigner, Martina; Nguyen, Minh-Long [Soil and Water Management and Crop Nutrition Laboratory, Joint FAO/IAEA Division for Nuclear Techniques in Food and Agriculture, Seibersdorf (Austria); Schwartz, Egbert [Department of Biological Sciences, Northern Arizona University, Flagstaff, Arizona, (United States); Dexin, Lin [Soil and Water Management and Crop Nutrition Laboratory, Joint FAO/IAEA Division for Nuclear Techniques in Food and Agriculture, Seibersdorf, (Austria); Fujian Agriculture and Forestry University, Fujian (China)

    2013-01-15

    The Soil and Water Management and Crop Nutrition (SWMCN) Subprogramme (Section and Laboratory) assists FAO and IAEA Member States in the development, validation and dissemination of a range of soil, water and crop management technology packages using nuclear and nuclear-related techniques. In the coming years, SWMCN aims to (i) improve soil quality and soil resilience against the impacts of climate change and variability and (ii) reduce greenhouse gas emissions and increase soil carbon sequestration in both productive and marginal lands. To achieve these aims, the SWMCN Subprogramme is planning to put major emphasis on applied microbial ecology. Microbial communities play a major role in soil fertility improvement through the decomposition of crop residues, live- stock manure and soil organic matter. These microbes are often affected by variations in rainfall and temperature patterns caused by climate change. Recent advances in the use of stable isotopes like carbon-3, nitrogen-5 and oxygen-18 as biomarkers to characterize microbial communities and their interactions with soil nutrient and organic matter processes, known as stable isotope probing (SIP), are important for soil-water-nutrient management. SIP helps us to understand the interactions between soil microbial communities and their specific functions in soil carbon sequestration, soil organic matter stabilization, soil fertility and soil resilience, as well as the soil productive capacity for sustainable intensification of cropping and livestock production. SIP involves the introduction of a stable isotope labelled substrate into a soil microbial community to trace the fate of the substrate. This allows direct observations of substrate assimilation to be made in minimally disturbed communities of microorganisms. Microorganisms that are actively involved in specific metabolic processes can be identified under in-situ conditions. SIP is most developed for carbon-13 probing, but studies using nitrogen-15 and

  1. December ’89. The revolutionary transfer of power

    Directory of Open Access Journals (Sweden)

    Adrian-Cosmin Canae

    2014-12-01

    Full Text Available Romanian Revolution of December 1989, represented a fierce struggle between the civilian population and the communist political class existing, as well as the Department of State Security at the time, having Nicolae Ceaușescu at the helm of state. After the bloody revolution of 1989, Romania’s history is also marked by the transition from communist regime with, repression of individual freedom, monopartidist system, planned economy, to democracy with free market economy, freedom and freedom of speech. Certainly, it is the only revolution in Central and Eastern Europe, which has been the most violent system change, resulting in many deaths and wounded people.

  2. Growing Canopy on a College Campus: Understanding Urban Forest Change through Archival Records and Aerial Photography.

    Science.gov (United States)

    Roman, Lara A; Fristensky, Jason P; Eisenman, Theodore S; Greenfield, Eric J; Lundgren, Robert E; Cerwinka, Chloe E; Hewitt, David A; Welsh, Caitlin C

    2017-12-01

    Many municipalities are setting ambitious tree canopy cover goals to increase the extent of their urban forests. A historical perspective on urban forest development can help cities strategize how to establish and achieve appropriate tree cover targets. To understand how long-term urban forest change occurs, we examined the history of trees on an urban college campus: the University of Pennsylvania in Philadelphia, PA. Using a mixed methods approach, including qualitative assessments of archival records (1870-2017), complemented by quantitative analysis of tree cover from aerial imagery (1970-2012), our analysis revealed drastic canopy cover increase in the late 20th and early 21st centuries along with the principle mechanisms of that change. We organized the historical narrative into periods reflecting campus planting actions and management approaches; these periods are also connected to broader urban greening and city planning movements, such as City Beautiful and urban sustainability. University faculty in botany, landscape architecture, and urban design contributed to the design of campus green spaces, developed comprehensive landscape plans, and advocated for campus trees. A 1977 Landscape Development Plan was particularly influential, setting forth design principles and planting recommendations that enabled the dramatic canopy cover gains we observed, and continue to guide landscape management today. Our results indicate that increasing urban tree cover requires generational time scales and systematic management coupled with a clear urban design vision and long-term commitments. With the campus as a microcosm of broader trends in urban forest development, we conclude with a discussion of implications for municipal tree cover planning.

  3. From Bearing Witness to Art Exhibitions to Inspiring the Understanding of Climate Change

    Science.gov (United States)

    Burko, D.

    2016-12-01

    I intend to demonstrate how artists such as myself can influence the public discourse on climate change. I believe aesthetically compelling visualizations can transcend data and language. I will speak specifically to how I communicate scientific research to diverse populations. I have much to share since first speaking in 2012 on the Panel "Communication of Science through Art: Raison d'Etre for Interdisciplinary Communication". I then illustrated how I utilized visual cues such as archival evidence in the form of repeats, geological charts of recessional lines, graphs, symbols and Landsat maps in my large scale paintings and photographs and inspired learning. I continue to develop visual strategies delivering information on an emotional/non-verbal level. Now 4 years later, I've added the most dramatic layer to my creative process: bearing witness. I've been to the three largest ice fields in the world: Greenland, Antarctica and Argentina's Patagonia, observing the unprecedented pace of glacial melt. Those expeditions feed my practice, leading to exhibitions that begin a dialog with an audience not initially interested in science. In the past 5 years my work has appeared in 6 solo and 19 group exhibits all devoted to the environment. I make myself present in universities, museums and galleries to explain what the images are about. I require universities to include a public component: an all-college lecture or panel where the geography/environmental/sociology/geology departments participate with broad student involvement. I believe that such endeavors are worthwhile and can be models for further efforts to educate an unsuspecting audience. Artists can bridge the gap communicating to a public of art appreciators, nonscientists - how easy it is to understand geology and global warming. I believe we can even inspire attitudinal change. Aside from personal examples I will include other artists and exhibition venues contributing to this phenomenon.

  4. Understanding linkages between global climate indices and terrestrial water storage changes over Africa using GRACE products.

    Science.gov (United States)

    Anyah, R O; Forootan, E; Awange, J L; Khaki, M

    2018-09-01

    Africa, a continent endowed with huge water resources that sustain its agricultural activities is increasingly coming under threat from impacts of climate extremes (droughts and floods), which puts the very precious water resource into jeopardy. Understanding the relationship between climate variability and water storage over the continent, therefore, is paramount in order to inform future water management strategies. This study employs Gravity Recovery And Climate Experiment (GRACE) satellite data and the higher order (fourth order cumulant) statistical independent component analysis (ICA) method to study the relationship between terrestrial water storage (TWS) changes and five global climate-teleconnection indices; El Niño-Southern Oscillation (ENSO), North Atlantic Oscillation (NAO), Madden-Julian Oscillation (MJO), Quasi-Biennial Oscillation (QBO) and the Indian Ocean Dipole (IOD) over Africa for the period 2003-2014. Pearson correlation analysis is applied to extract the connections between these climate indices (CIs) and TWS, from which some known strong CI-rainfall relationships (e.g., over equatorial eastern Africa) are found. Results indicate unique linear-relationships and regions that exhibit strong linkages between CIs and TWS. Moreover, unique regions having strong CI-TWS connections that are completely different from the typical ENSO-rainfall connections over eastern and southern Africa are also identified. Furthermore, the results indicate that the first dominant independent components (IC) of the CIs are linked to NAO, and are characterized by significant reductions of TWS over southern Africa. The second dominant ICs are associated with IOD and are characterized by significant increases in TWS over equatorial eastern Africa, while the combined ENSO and MJO are apparently linked to the third ICs, which are also associated with significant increase in TWS changes over both southern Africa, as well as equatorial eastern Africa. Copyright © 2018

  5. Time-Series Similarity Analysis of Satellite Derived Data to Understand Changes in Forest Biomass.

    Science.gov (United States)

    Singh, N.; Fritz, B.

    2017-12-01

    One of the goals of promoting bioenergy is reducing green-house gas emissions by replacing fossil fuels. However, there are concerns that carbon emissions due to changes in land use resulting from crop production for ethanol will negate the impact of biofuels on the environment. So, the current focus is to use lignocellulose feedstocks also referred to as second generation biofuels as the new source of bioenergy. Wood based pellets derived from the forests of southeastern United States are one such source which is being exported to Europe as a carbon-neutral fuel. These wood-pellets meet the EU standard for carbon emissions and are being used to replace coal for energy generation and heating. As a result US exports of wood-based pellets have increased from nearly zero to over 6 million metric tons over the past 8 years. Wood-based pellets are traditionally produced from softwood trees which have a relatively shorter life-cycle and propagate easily, and thus are expected to provide a sustainable source of wood chips used for pellet production. However, there are concerns that as the demand and price of wood pellets increases, lumber mills will seek wood chips from other sources as well, particularly from hardwood trees resulting in higher carbon emissions as well as loss of biodiversity. In this study we use annual stacks of normalized difference vegetation index (NDVI) data at a 16-day temporal resolution to monitor biomass around pellet mills in southeastern United States. We use a combination of time series similarity technique and supervised learning to understand if there have been significant changes in biomass around pellet mills in the southeastern US. We also demonstrate how our method can be used to monitor biomass over large geographic regions using phenological properties of growing vegetation.

  6. Predicting Changes in Arctic Tundra Vegetation: Towards an Understanding of Plant Trait Uncertainty

    Science.gov (United States)

    Euskirchen, E. S.; Serbin, S.; Carman, T.; Iversen, C. M.; Salmon, V.; Helene, G.; McGuire, A. D.

    2017-12-01

    Arctic tundra plant communities are currently undergoing unprecedented changes in both composition and distribution under a warming climate. Predicting how these dynamics may play out in the future is important since these vegetation shifts impact both biogeochemical and biogeophysical processes. More precise estimates of these future vegetation shifts is a key challenge due to both a scarcity of data with which to parameterize vegetation models, particularly in the Arctic, as well as a limited understanding of the importance of each of the model parameters and how they may vary over space and time. Here, we incorporate newly available field data from arctic Alaska into a dynamic vegetation model specifically developed to take into account a particularly wide array of plant species as well as the permafrost soils of the arctic tundra (the Terrestrial Ecosystem Model with Dynamic Vegetation and Dynamic Organic Soil, Terrestrial Ecosystem Model; DVM-DOS-TEM). We integrate the model within the Predicative Ecosystem Analyzer (PEcAn), an open-source integrated ecological bioinformatics toolbox that facilitates the flows of information into and out of process models and model-data integration. We use PEcAn to evaluate the plant functional traits that contribute most to model variability based on a sensitivity analysis. We perform this analysis for the dominant types of tundra in arctic Alaska, including heath, shrub, tussock and wet sedge tundra. The results from this analysis will help inform future data collection in arctic tundra and reduce model uncertainty, thereby improving our ability to simulate Arctic vegetation structure and function in response to global change.

  7. Growing Canopy on a College Campus: Understanding Urban Forest Change through Archival Records and Aerial Photography

    Science.gov (United States)

    Roman, Lara A.; Fristensky, Jason P.; Eisenman, Theodore S.; Greenfield, Eric J.; Lundgren, Robert E.; Cerwinka, Chloe E.; Hewitt, David A.; Welsh, Caitlin C.

    2017-12-01

    Many municipalities are setting ambitious tree canopy cover goals to increase the extent of their urban forests. A historical perspective on urban forest development can help cities strategize how to establish and achieve appropriate tree cover targets. To understand how long-term urban forest change occurs, we examined the history of trees on an urban college campus: the University of Pennsylvania in Philadelphia, PA. Using a mixed methods approach, including qualitative assessments of archival records (1870-2017), complemented by quantitative analysis of tree cover from aerial imagery (1970-2012), our analysis revealed drastic canopy cover increase in the late 20th and early 21st centuries along with the principle mechanisms of that change. We organized the historical narrative into periods reflecting campus planting actions and management approaches; these periods are also connected to broader urban greening and city planning movements, such as City Beautiful and urban sustainability. University faculty in botany, landscape architecture, and urban design contributed to the design of campus green spaces, developed comprehensive landscape plans, and advocated for campus trees. A 1977 Landscape Development Plan was particularly influential, setting forth design principles and planting recommendations that enabled the dramatic canopy cover gains we observed, and continue to guide landscape management today. Our results indicate that increasing urban tree cover requires generational time scales and systematic management coupled with a clear urban design vision and long-term commitments. With the campus as a microcosm of broader trends in urban forest development, we conclude with a discussion of implications for municipal tree cover planning.

  8. A Big Data Guide to Understanding Climate Change: The Case for Theory-Guided Data Science.

    Science.gov (United States)

    Faghmous, James H; Kumar, Vipin

    2014-09-01

    Global climate change and its impact on human life has become one of our era's greatest challenges. Despite the urgency, data science has had little impact on furthering our understanding of our planet in spite of the abundance of climate data. This is a stark contrast from other fields such as advertising or electronic commerce where big data has been a great success story. This discrepancy stems from the complex nature of climate data as well as the scientific questions climate science brings forth. This article introduces a data science audience to the challenges and opportunities to mine large climate datasets, with an emphasis on the nuanced difference between mining climate data and traditional big data approaches. We focus on data, methods, and application challenges that must be addressed in order for big data to fulfill their promise with regard to climate science applications. More importantly, we highlight research showing that solely relying on traditional big data techniques results in dubious findings, and we instead propose a theory-guided data science paradigm that uses scientific theory to constrain both the big data techniques as well as the results-interpretation process to extract accurate insight from large climate data .

  9. Understanding the relationship between sediment connectivity and spatio-temporal landscape changes in two small catchments

    Science.gov (United States)

    Giuseppina Persichillo, Maria; Meisina, Claudia; Cavalli, Marco; Crema, Stefano; Bordoni, Massimiliano

    2016-04-01

    The degree of linkage between the sediments sources and downstream areas (i.e., sediment connectivity) is one of the most important properties controlling landscape evolution. Many factors have been found to affect sediment connectivity, especially at the catchment scale. In particular, the degree of linkage between different areas within a catchment depends largely on the morphological complexity of the catchment (relief, terrain roughness, stream network density and catchment shape) and the combined effects of vegetation, such as land use changes and land abandonment. Moreover, the analysis of the spatial distribution of sediment connectivity and its temporal evolution can be also useful for the characterization of sediment source areas. Specifically, these areas represent sites of instability and their connectivity influences the probability that a local on-site effect could propagate within a multiple-events feedback system. Within this framework, the aim of this study is to apply a geomorphometric approach to analyze the linkage between landscape complexity and the sediment connectivity at the catchment scale. Moreover, to assess sediment delivery, the index of connectivity (IC) proposed by Cavalli et al. (2013) was used to evaluate the potential connection of sediment source areas with the main channel network. To better understand the relationship between morphological complexity of the catchment's landscape and the sediment spatial distribution and mobilization, two catchments with different size and geomorphological and land use characteristics were analysed: the Rio Frate and Versa catchments (Oltrepo Pavese, Southern Lombardy, Italy). Several shallow landslides, which represents the main sediment source area type in the catchments, were triggered especially in the period from 2009 to 2013. Moreover, relevant modification of land use and drainage system during last decades, especially related to land abandonment, have conditioned the sediment connectivity

  10. Understanding Pan-Arctic Tundra Vegetation Change Through Long-term Remotely Sensed Data

    Science.gov (United States)

    Bhatt, U.; Walker, D. A.; Bieniek, P.; Raynolds, M. K.; Epstein, H. E.; Comiso, J. C.; Pinzon, J. E.; Tucker, C. J.

    2012-12-01

    The goal of this paper is to present an analysis of the seasonality of tundra vegetation variability and change using long-term remotely sensed data as well as ground based measurements and reanalyses. An increase of Pan-Arctic tundra vegetation greenness has been documented using the remotely sensed Normalized Difference Vegetation Index (NDVI). Coherent variability between NDVI, springtime coastal sea ice (passive microwave) and land surface temperatures (AVHRR) has also been established. Satellite based snow and cloud cover data sets are being incorporated into this analysis. The Arctic tundra is divided into domains based on Treshnikov divisions that are modified based on floristic provinces. There is notable heterogeneity in Pan-Arctic vegetation and climate trends, which necessitates a regional analysis. This study uses remotely sensed weekly 25-km sea ice concentration, weekly surface temperature, and bi-weekly NDVI from 1982 to 2010. The GIMMS NDVI3g data has been corrected for biases during the spring and fall, with special focus on the Arctic. Trends of Maximum NDVI (MaxNDVI), Time Integrated NDVI (TI-NDVI), Summer Warmth Index (SWI, sum of degree months above freezing during May-August), and open water area are calculated for the Pan Arctic. Remotely sensed snow data trends suggest varying patterns throughout the Arctic and may in part explain the heterogeneous MaxNDVI trends. Standard climate data (station, reanalysis, and model data) and ground observations are used in the analysis to provide additional support for hypothesized mechanisms. Overall, we find that trends over the 30-year record are changing as evidenced by the following examples from recent years. The sea ice decline has increased in Eurasia and slowed in North America. The weekly AVHRR landsurface temperatures reveal that there has been summer cooling over Eurasia and that the warming over North America has slowed. The MaxNDVI rates of change have diverged between N. America and Eurasia

  11. Forests and Phenology: Designing the Early Warning System to Understand Forest Change

    Science.gov (United States)

    Pierce, T.; Phillips, M. B.; Hargrove, W. W.; Dobson, G.; Hicks, J.; Hutchins, M.; Lichtenstein, K.

    2010-12-01

    Vegetative phenology is the study of plant development and changes with the seasons, such as the greening-up and browning-down of forests, and how these events are influenced by variations in climate. A National Phenology Data Set, based on Moderate Resolution Imaging Spectroradiometer satellite images covering 2002 through 2009, is now available from work by NASA, the US Forest Service, and Oak Ridge National Laboratory. This new data set provides an easily interpretable product useful for detecting changes to the landscape due to long-term factors such as climate change, as well as finding areas affected by short-term forest threats such as insects or disease. The Early Warning System (EWS) is a toolset being developed by the US Forest Service and the University of North Carolina-Asheville to support distribution and use of the National Phenology Data Set. The Early Warning System will help research scientists, US Forest Service personnel, forest and natural resources managers, decision makers, and the public in the use of phenology data to better understand unexpected change within our nation’s forests. These changes could have multiple natural sources such as insects, disease, or storm damage, or may be due to human-induced events, like thinning, harvest, forest conversion to agriculture, or residential and commercial use. The primary goal of the Early Warning System is to provide a seamless integration between monitoring, detection, early warning and prediction of these forest disturbances as observed through phenological data. The system consists of PC and web-based components that are structured to support four user stages of increasing knowledge and data sophistication. Building Literacy: This stage of the Early Warning System educates potential users about the system, why the system should be used, and the fundamentals about the data the system uses. The channels for this education include a website, interactive tutorials, pamphlets, and other technology

  12. Comparing Generative and Inter-generative Subjectivity in Post-Revolutionary Academic Generations in Iran

    Directory of Open Access Journals (Sweden)

    mehran Sohrabzadeh

    2010-01-01

    Full Text Available Comparative study of different post-revolutionary generation has been broadly applied by social scientists; among them some believe there is a gulf between generations, while some others endorsing some small differences among generations, emphasis that this variety is natural. Avoiding being loyal to any of these two views, the present study attempts to compare three different post-revolutionary academic generations using theory of “generative objects” which explores generations’ view about their behaviors, Beliefs, and historical monuments. Sampling was carried among 3 generations; firstly ones who were student in 60s and now are experienced faculties in the university, secondly ones who are recently employed as faculty members, and finally who are now students in universities. Results show that in all 3 generations there are essential in-generation similarities, while comparatively there are some differentiations in inter-generative analysis.

  13. Imagining the Impossible: Revolutionary Critical Pedagogy Against the 21st Century American Imperium

    Directory of Open Access Journals (Sweden)

    Valerie Scatamburlo-D’Annibale

    2006-10-01

    Full Text Available This article examines some of the major Marxist-humanist themes that animate the revolutionary critical pedagogy delineated by Peter McLaren in recent years. Among these themes are radical universalism, an interrogation of the capitalization and commodification of human labor, and the interrelatedness of American imperialism and neoliberal globalized capitalism. It argues that McLaren’s scholarship provides progressive educationalists with an alternative to those “post-alized” and liberal humanist versions of critical pedagogy that have virtually abandoned all forms of class analysis. It contends that revolutionary critical pedagogy offers a much-needed narrative capable of challenging the most recent manifestations of empire, wars of aggression, and exploitative capitalist relations.

  14. Naming as Strategic Communication: Understanding Corporate Name Change through an Integrative Framework Encompassing Branding, Identity and Institutional Theory

    DEFF Research Database (Denmark)

    Schmeltz, Line; Kjeldsen, Anna Karina

    2016-01-01

    This article presents a framework for understanding corporate name change as strategic communication. From a corporate branding perspective, the choice of a new name can be seen as a wish to stand out from a group of similar organizations. Conversely, from an institutional perspective, name change...

  15. Physics, Physicists and Revolutionary Capabilities for the Intelligence Community

    Science.gov (United States)

    Porter, Lisa

    2009-05-01

    Over the past several decades, physicists have made seminal contributions to technological capabilities that have enabled the U.S. intelligence community to provide unexpected and unparalleled information to our nation's decision makers and help dispel the cloud of uncertainty they face in dealing with crises and challenges around the world. As we look to the future, we recognize that the ever-quickening pace of changes in the world and the threats we must confront demand continued innovation and improvement in the capabilities needed to provide the information on which our leaders depend. This talk will focus on some of the major technological challenges that the intelligence community faces in the coming years, and the many ways that physicists can help to overcome those challenges. The potential impact of physicists on the future capabilities of the US intelligence community is huge. In addition to the more obvious and direct impact through research in areas ranging from novel sensors to quantum information science, the unique approach physicists bring to a problem can also have an indirect but important effect by influencing how challenges in areas ranging from cybersecurity to advanced analytics are approached and solved. Several examples will be given.

  16. Revolutionary interdisciplinary cooperation. Effects of short- term regulation studied in a river environment

    Energy Technology Data Exchange (ETDEWEB)

    Saimakallio, H.; Virsu, R.

    1996-11-01

    A three-year study on how short-term regulation affects the river environment provides power plant builders with new capabilities to meet the needs of the riverside population, recreational users and power plants. The study also opens up new perspectives to researchers. Interdisciplinary cooperation between experts on the living environment, vegetation, fish, recreational use and energy has been revolutionary even on the international scale. (orig.)

  17. Campobello’s Cartuchos and Cisneros’s Molotovs: Transborder Revolutionary Feminist Narratives

    Directory of Open Access Journals (Sweden)

    Geneva M. Gano

    2015-03-01

    Full Text Available Though “revolutionary” acts and attitudes were frequently claimed in various civil rights–era movements in the US, this article considers the specific meaning of the term in a Mexican-Chicano context through a simultaneous examination of Sandra Cisneros’s The House on Mango Street (1984 and Nellie Campobello’s Cartucho: relatos de la lucha en el norte de México (1931.  By way of a formal allusion to Campobello’s revolutionary text, Cisneros forces her readers to reconsider Mango Street from a hemispheric perspective, prompting new readings of her work. Most broadly, it resituates the text within a broader Latino tradition of the modern testimonio, which demands recognition of its sociopolitical significance. More specifically, the formal connection Cisneros forges insists on a similarity between the violent spaces of the post-WWII barrio and revolutionary Durango. Thus Cisneros collapses national and temporal distinctions that would assure US readers (Cisneros’s main audience that poverty, violence, and revolution cannot happen here. To Gano, this radical use of form threatens not just literary conventions (this is not simply an assertion of “revolutionary style” but also contains the suggestive threat that the barrio is a potential site of revolution, inseparable from violent acts. That this is a woman-centered story is significant: Cisneros’s kindling world is comprised largely of women and children who are inundated with daily episodes of violence. Often dismissed as political actors, these individuals are transformed in Cisneros’s work into potential revolutionaries.

  18. Harbingers of the Caliphate: Islamic State Revolutionary Actions 2011-2014

    Science.gov (United States)

    2016-06-01

    Together: Symbolic Violence and Guerrilla Mobilisation,” Third World Quarterly 28, no. 2 (2007): 295–320. 8 generate a bandwagon effect that further...military force. The fall of Mosul and other population centers within the Sunni regions of Iraq and Syria were the product of a lengthy and effective ...against revolutionary movements that are not isolated from society can have a counter-productive effect on the population, actually increasing public

  19. Bell and Banner: Armenian Revolutionaries at the End of the Ottoman Empire

    Science.gov (United States)

    2011-12-01

    of the Russian bourgeoisie whose sympathy with the Ottoman Armenian cause prompted their activism. Socially, they were members of a relatively...the Armenian bourgeoisie in Russia who contested the Hunchak program on anti-socialist grounds, as well as the Ottoman Armenian elite whose self...were held by the Armenian bourgeoisie , it is significant that the Armenian revolutionaries would defend such assets as this implies at best a degree

  20. Alienation and Revolutionary Vision in East African Post-Colonial Dramatic Literature

    OpenAIRE

    Fashina, Nelson O.

    2009-01-01

    This paper is a trans-disciplinary inquiry into the principles of alienation and revolutionary ethos in two East African plays of postcolonial society. It engages literary-textual exegesis and sociological theories to unravel the multi-dimensional forms of alienation as an interrogation of contemporary postcolonial history. The writers, though somewhat in throes and dilemma of exilic consciousness, ‘commodify’ and appropriate the literary enterprise as weapon of active physical revolt and tex...

  1. Bypassing Islamism and Feminism: Women’s Resistance and Rebellion in Post-revolutionary Iran

    Directory of Open Access Journals (Sweden)

    Fatemeh Sadeghi

    2012-01-01

    Full Text Available This paper explores the reason behind the crisis of representation in post-revolutionary competing Iranian gender discourses. These competing discourses include Islamic fundamentalism, religious revisionism, and secular feminism. The crisis of representation is related to at least three main presuppositions and attendant action programs: first, discrimination against women and possible accommodations should be examined in the context of religious and legal institutions. This approach resulted in the depoliticization of women’s issues, even though most Iranian women have persistently proclaimed equality and citizenship through political participation. This was the case for the 1979 Islamic Revolution, the reform movement and most recently, the Green Movement following the 2009 presidential election. The second presupposition is that individual identity is a fundamental condition for socio-political activism. The third presupposition is that discrimination against women in post-revolutionary Iran is essentially a legalist strategy and has resulted in campaigns that failed to address women’s daily challenges. On the contrary, women’s political participation in post-revolutionary Iran shows that gender issues are always political issues and need to be understood politically and politicized. Such a notion challenges attitudes which relegate gender discrimination and social solutions to the purview of religion or secularism.

  2. Understanding recovery: changes in the relationships of the International Classification of Functioning (ICF) components over time.

    Science.gov (United States)

    Davis, A M; Perruccio, A V; Ibrahim, S; Hogg-Johnson, S; Wong, R; Badley, E M

    2012-12-01

    The International Classification of Functioning, Disability and Health framework describes human functioning through body structure and function, activity and participation in the context of a person's social and physical environment. This work tested the temporal relationships of these components. Our hypotheses were: 1) there would be associations among physical impairment, activity limitations and participation restrictions within time; 2) prior status of a component would be associated with future status; 3) prior status of one component would influence status of a second component (e.g. prior activity limitations would be associated with current participation restrictions); and, 4) the magnitude of the within time relationships of the components would vary over time. Participants from Canada with primary hip or knee joint replacement (n = 931), an intervention with predictable improvement in pain and disability, completed standardized outcome measures pre-surgery and five times in the first year post-surgery. These included physical impairment (pain), activity limitations and participation restrictions. ICF component relationships were evaluated cross-sectionally and longitudinally using path analysis adjusting for age, sex, BMI, hip vs. knee, low back pain and mood. All component scores improved significantly over time. The path coefficients supported the hypotheses in that both within and across time, physical impairment was associated with activity limitation and activity limitation was associated with participation restriction; prior status and change in a component were associated with current status in another component; and, the magnitude of the path coefficients varied over time with stronger associations among components to three months post surgery than later in recovery with the exception of the association between impairment and participation restrictions which was of similar magnitude at all times. This work enhances understanding of the

  3. Process Network Approach to Understanding How Forest Ecosystems Adapt to Changes

    Science.gov (United States)

    Kim, J.; Yun, J.; Hong, J.; Kwon, H.; Chun, J.

    2011-12-01

    Sustainability challenges are transforming science and its role in society. Complex systems science has emerged as an inevitable field of education and research, which transcends disciplinary boundaries and focuses on understanding of the dynamics of complex social-ecological systems (SES). SES is a combined system of social and ecological components and drivers that interact and give rise to results, which could not be understood on the basis of sociological or ecological considerations alone. However, both systems may be viewed as a network of processes, and such a network hierarchy may serve as a hinge to bridge social and ecological systems. As a first step toward such effort, we attempted to delineate and interpret such process networks in forest ecosystems, which play a critical role in the cycles of carbon and water from local to global scales. These cycles and their variability, in turn, play an important role in the emergent and self-organizing interactions between forest ecosystems and their environment. Ruddell and Kumar (2009) define a process network as a network of feedback loops and the related time scales, which describe the magnitude and direction of the flow of energy, matter, and information between the different variables in a complex system. Observational evidence, based on micrometeorological eddy covariance measurements, suggests that heterogeneity and disturbances in forest ecosystems in monsoon East Asia may facilitate to build resilience for adaptation to change. Yet, the principles that characterize the role of variability in these interactions remain elusive. In this presentation, we report results from the analysis of multivariate ecohydrologic and biogeochemical time series data obtained from temperate forest ecosystems in East Asia based on information flow statistics.

  4. Argumentation as a Strategy for Increasing Preservice Teachers’ Understanding of Climate Change, a Key Global Socioscientific Issue

    OpenAIRE

    Lambert, Julie L.; Bleicher, Robert E.

    2017-01-01

    Findings of this study suggest that scientific argumentation can play an effective role in addressing complex socioscientific issues (i.e. global climate change). This research examined changes in preservice teachers’ knowledge and perceptions about climate change in an innovative undergraduate-level elementary science methods course. The preservice teachers’ understanding of fundamental concepts (e.g., the difference between weather and climate, causes of recent global warming, etc.) increas...

  5. A survey of doctors at a UK teaching hospital to assess understanding of recent changes to consent law

    Directory of Open Access Journals (Sweden)

    J.W. O'Brien, BSc MRCS

    2017-06-01

    Conclusion: The majority were not familiar with the concept of material risk and recent legal changes. A majority were not confident that their practice meets current requirements, suggesting that recent changes in consent law may not be widely understood at this hospital. We suggest more guidance and education may be necessary than is currently available. Increased understanding of recent changes to consent law will reduce the risk taken by NHS trusts and offer patients a service compliant with Supreme Court guidance.

  6. A Hybrid Approach to Cognitive Engineering: Supporting Development of a Revolutionary Warfighter-Centered Command and Control System

    National Research Council Canada - National Science Library

    Ockerman, Jennifer; McKneely, Jennifer A; Koterba, Nathan

    2005-01-01

    ...) for the requirements analysis and design of revolutionary command and control systems and domains. This hybrid approach uses knowledge elicitation and representation techniques from several current cognitive engineering methodologies...

  7. Any Small Change?: Teacher Education, Compassion, Understandings and Perspectives on Global Development Education

    Science.gov (United States)

    Varadharajan, Meera; Buchanan, John

    2017-01-01

    Increased migration of people(s), goods, ideas and ideologies necessitate global understanding, empathies and responses on the part of teachers and their students. This paper investigates the effects on 100 primary pre-service teachers' understandings of and attitudes toward a semester-long course exploring, inter alia, global development. The…

  8. Proceedings of the adapting to climate change in Canada 2005 conference : understanding risks and building capacity

    International Nuclear Information System (INIS)

    2005-01-01

    This four-day conference provided a national forum for researchers and decision-makers from a variety of disciplines to share information and results on climate change. Sponsored by Natural Resources Canada's Climate Change Impacts and Adaptation Program, the conference explored ways to improve knowledge of Canada's vulnerability to climate change, to better assess the benefits and risks of climate change and to examine policies and options through which decisions on adaptation can be made. Conference topics included issues such as global warming; sustainable development; climate change and agriculture; adaptation strategies; water, coastline and marine management and climate change; municipal level management and climate change; climate change and health issues; and many other topics related to climate change. The conference featured paper and poster presentations, opening remarks, and panel discussions. A total of 118 conference papers and 46 conference posters were presented at the conference of which 17 have been catalogued separately in this database. refs., tabs., figs

  9. Understanding cost growth during operations of planetary missions: An explanation of changes

    Science.gov (United States)

    McNeill, J. F.; Chapman, E. L.; Sklar, M. E.

    In the development of project cost estimates for interplanetary missions, considerable focus is generally given to the development of cost estimates for the development of ground, flight, and launch systems, i.e., Phases B, C, and D. Depending on the project team, efforts expended to develop cost estimates for operations (Phase E) may be relatively less rigorous than that devoted to estimates for ground and flight systems development. Furthermore, the project team may be challenged to develop a solid estimate of operations cost in the early stages of mission development, e.g., Concept Study Report or Systems Requirement Review (CSR/SRR), Preliminary Design Review (PDR), as mission specific peculiarities that impact cost may not be well understood. In addition, a methodology generally used to develop Phase E cost is engineering build-up, also known as “ grass roots” . Phase E can include cost and schedule risks that are not anticipated at the time of the major milestone reviews prior to launch. If not incorporated into the engineering build-up cost method for Phase E, this may translate into an estimation of the complexity of operations and overall cost estimates that are not mature and at worse, insufficient. As a result, projects may find themselves with thin reserves during cruise and on-orbit operations or project overruns prior to the end of mission. This paper examines a set of interplanetary missions in an effort to better understand the reasons for cost and staffing growth in Phase E. The method used in the study is discussed as well as the major findings summarized as the Phase E Explanation of Change (EoC). Research for the study entailed the review of project materials, including Estimates at Completion (EAC) for Phase E and staffing profiles, major project milestone reviews, e.g., CSR, PDR, Critical Design Review (CDR), the interviewing of select project and mission management, and review of Phase E replan materials. From this work, a detai- ed

  10. Conceptualizing In-service Secondary School Science Teachers' Knowledge Base for Promoting Understanding about the Science of Global Climate Change

    Science.gov (United States)

    Bhattacharya, Devarati

    Efforts to adapt and mitigate the effects of global climate change (GCC) have been ongoing for the past two decades and have become a major global concern. However, research and practice for promoting climate literacy and understanding about GCC have only recently become a national priority. The National Research Council (NRC), has recently emphasized upon the importance of developing learners' capacity of reasoning, their argumentation skills and understanding of GCC (Framework for K-12 Science Education, National Research Council, 2012). This framework focuses on fostering conceptual clarity about GCC to promote innovation, resilience, and readiness in students as a response towards the threat of a changing environment. Previous research about teacher understanding of GCC describes that in spite of the prevalent frameworks like the AAAS Science Literacy Atlas (AAAS, 2007) and the Essential Principles for Climate Literacy (United States Global Climate Research Program, 2009; Bardsley, 2007), most learners are challenged in understanding the science of GCC (Michail et al., 2007) and misinformed perceptions about basic climate science content and the role of human activities in changing climate remain persistent (Reibich and Gautier, 2006). Our teacher participants had a rather simplistic knowledge structure. While aware of climate change, teacher participants lacked in depth understanding of how change in climate can impact various ecosystems on the Earth. Furthermore, they felt overwhelmed with the extensive amount of information needed to comprehend the complexity in GCC. Hence, extensive efforts not only focused on assessing conceptual understanding of GCC but also for teaching complex science topics like GCC are essential. This dissertation explains concept mapping, and the photo elicitation method for assessing teachers' understanding of GCC and the use of metacognitive scaffolding in instruction of GCC for developing competence of learners in this complex

  11. Perspectives on the Land Use History of North America: A Context for Understanding Our Changing Environment

    National Research Council Canada - National Science Library

    Sisk, Thomas

    1998-01-01

    ... between land use and landcover change. The authors provide the historical context for interpreting recent landcover change in several regions of North America and articulate the value of a comprehensive, continental land use history...

  12. Understanding and Facilitating Change in Higher Education in the 21st Century. ERIC Digest.

    Science.gov (United States)

    Kezar, Adrianna

    This digest focuses on providing the reader several key insights into the change process in higher education by: (1) presenting a common language for organizational change; (2) describing the multidisciplinary research base on change; (3) highlighting the distinct characteristics of higher education institutions and how this might influence the…

  13. Understanding socio-technical change : A system-network-agent approach

    NARCIS (Netherlands)

    Chiong Meza, C.M.

    2012-01-01

    Transitions are processes of change that have always occurred in society: for example, the production of goods changed from handcraft to machine-made. In recent years, these transitions attract more and more attention, mainly because societies now wish to actively bring about certain changes, such

  14. Tensor-based fusion of EEG and FMRI to understand neurological changes in Schizophrenia

    DEFF Research Database (Denmark)

    Evrim, Acar Ataman; Levin-Schwartz, Yuri; Calhoun, Vince D.

    2016-01-01

    Neuroimaging modalities such as functional magnetic resonance imaging (fMRI) and electroencephalography (EEG) provide information about neurological functions in complementary spatiotemporal resolutions; therefore, fusion of these modalities is expected to provide better understanding of brain...

  15. Revolutionary Road

    Science.gov (United States)

    Adults Learning, 2009

    2009-01-01

    Last month, the Government published "The Learning Revolution," its long-awaited White Paper on informal adult learning. This article asks some of the key players and commentators whether they thought the paper lived up to its optimistic title. It presents the views of these commentators about the "Learning Revolution" White…

  16. Using Pre-Assessment and In-Class Questions to Change Student Understanding of Molecular Movements

    Directory of Open Access Journals (Sweden)

    Jia Shi

    2017-05-01

    Full Text Available Understanding how different types of molecules move through cell membranes is a fundamental part of cell biology. To identify and address student misconceptions surrounding molecular movement through cell membranes, we surveyed student understanding on this topic using pre-class questions, in-class clicker questions, and subsequent exam questions in a large introductory biology course. Common misconceptions identified in student responses to the pre-class assessment questions were used to generate distractors for clicker questions. Two-tier diagnostic clicker questions were used to probe incoming common student misconceptions (first tier and their reasoning (second tier. Two subsequent lectures with assessment clicker questions were used to help students construct a new framework to understand molecular movement through cell membranes. Comparison of pre-assessment and post-assessment (exam performance showed dramatic improvement in students’ understanding of molecular movement: student answers to exam questions were 74.6% correct with correct reasoning while only 1.3% of the student answers were correct with correct reasoning on the pre-class assessment. Our results show that students’ conceptual understanding of molecular movement through cell membranes progressively increases through discussions of a series of clicker questions and suggest that this clicker-based teaching strategy was highly effective in correcting common student misconceptions on this topic.

  17. USGS global change science strategy: A framework for understanding and responding to climate and land-use change

    Science.gov (United States)

    Burkett, Virginia R.; Taylor, Ione L.; Belnap, Jayne; Cronin, Thomas M.; Dettinger, Michael D.; Frazier, Eldrich L.; Haines, John W.; Kirtland, David A.; Loveland, Thomas R.; Milly, Paul C.D.; O'Malley, Robin; Thompson, Robert S.

    2011-01-01

    This U.S. Geological Survey (USGS) Global Change Science Strategy expands on the Climate Variability and Change science component of the USGS 2007 Science Strategy, “Facing Tomorrow’s Challenges: USGS Science in the Coming Decade” (U.S. Geological Survey, 2007). Here we embrace the broad definition of global change provided in the U.S. Global Change Research Act of 1990 (Public Law 101–606,104 Stat. 3096–3104)—“Changes in the global environment (including alterations in climate, land productivity, oceans or other water resources, atmospheric chemistry, and ecological systems) that may alter the capacity of the Earth to sustain life”—with a focus on climate and land-use change.There are three major characteristics of this science strategy. First, it addresses the science required to broadly inform global change policy, while emphasizing the needs of natural-resource managers and reflecting the role of the USGS as the science provider for the Department of the Interior and other resource-management agencies. Second, the strategy identifies core competencies, noting 10 critical capabilities and strengths the USGS uses to overcome key problem areas. We highlight those areas in which the USGS is a science leader, recognizing the strong partnerships and effective collaboration that are essential to address complex global environmental challenges. Third, it uses a query-based approach listing key research questions that need to be addressed to create an agenda for hypothesis-driven global change science organized under six strategic goals. Overall, the strategy starts from where we are, provides a vision for where we want to go, and then describes high-priority strategic actions, including outcomes, products, and partnerships that can get us there. Global change science is a well-defined research field with strong linkages to the ecosystems, water, energy and minerals, natural hazards, and environmental health components of the USGS Science Strategy

  18. Travel Behavior Change in Older Travelers: Understanding Critical Reactions to Incidents Encountered in Public Transport

    OpenAIRE

    Sundling, Catherine

    2015-01-01

    Accessibility of travel may be better understood if psychological factors underlying change in travel behavior are known. This paper examines older (65+) travelers? motives for changing their travel behavior. These changes are grounded in critical incidents earlier encountered in public-transport travel. A scientific framework is developed based on cognitive and behavioral theory. In 29 individual interviews, travelers? critical reactions (i.e., cognitive, emotional, and/or behavioral) to 77 ...

  19. Understanding the varied response of the extratropical storm tracks to climate change

    OpenAIRE

    O’Gorman, Paul A.

    2010-01-01

    Transient eddies in the extratropical storm tracks are a primary mechanism for the transport of momentum, energy, and water in the atmosphere, and as such are a major component of the climate system. Changes in the extratropical storm tracks under global warming would impact these transports, the ocean circulation and carbon cycle, and society through changing weather patterns. I show that the southern storm track intensifies in the multimodel mean of simulations of 21st century climate chang...

  20. A Discursive Institutionalist Approach to Understanding the Changes to the Irish Social Partnership Policy After 2008

    OpenAIRE

    Hogan, John; Timoney, Nicola

    2016-01-01

    Read before the society, 14 January 2016 Employing the critical juncture theory (CJT), a discursive institutionalist approach, this paper examines the nature of the changes to social partnership policy at the end of the decade of the 2000s. Did these changes constitute a transformation in social partnership policy, or were they a continuation of a previously established policy pathway? The CJT consists of three elements – economic crisis, ideational change, and the nature of the policy cha...

  1. Change? What change? An exploration of the use of mixed-methods research to understand longitudinal measurement variance

    NARCIS (Netherlands)

    Lugtig, P.J.; Boeije, H.R.; Lensvelt-Mulders, G.J.L.M.

    2012-01-01

    A primary objective of panel studies is to analyze change. The same questionnaire is used to compare data recorded at various times. Panel designs assume that the meaning of the questions and the concept of interest are stable over time. Analyses of measurement invariance often show the contrary. A

  2. Change? What change? An Exploration of the Use of Mixed-Methods Research to Understand Longitudinal Measurement Variance.

    NARCIS (Netherlands)

    Lugtig, P.J.; Boeije, H.R.; Lensvelt-Mulders, G.J.L.M.

    2011-01-01

    A primary objective of panel studies is to analyze change. The same questionnaire is used to compare data recorded at various times. Panel designs assume that the meaning of the questions and the concept of interest are stable over time. Analyses of measurement invariance often show the contrary. A

  3. Understanding Sensemaking/Sensegiving in Transformational Change Processes from the Bottom up

    Science.gov (United States)

    Kezar, Adrianna

    2013-01-01

    Government agencies, foundations, business and industry, and other important higher education stakeholders continue to invest in important and deep changes they think are necessary for the vitality and health of higher education particularly interdisciplinary teaching and research. But we know little about how transformational changes happen,…

  4. Understanding Climate Change Perceptions, Attitudes, and Needs of Forest Service Resource Managers

    Science.gov (United States)

    Carlos Rodriguez-Franco; Tara J. Haan

    2015-01-01

    Surveys were collected to assess Forest Service (FS) resource managers' perceptions, attitudes, and informational needs related to climate change and its potential impacts on forests and grasslands. Resource managers with three background types were surveyed. All participants generally considered themselves to be well-informed on climate change issues, although...

  5. Exploiting temporal variability to understand tree recruitment response to climate change

    Science.gov (United States)

    Ines Ibanez; James S. Clark; Shannon LaDeau; Janneke Hill Ris Lambers

    2007-01-01

    Predicting vegetation shifts under climate change is a challenging endeavor, given the complex interactions between biotic and abiotic variables that influence demographic rates. To determine how current trends and variation in climate change affect seedling establishment, we analyzed demographic responses to spatiotemporal variation to temperature and soil moisture in...

  6. Understanding changes in employees' identification and professional identity : the case of teachers in higher vocational education in the Netherlands

    NARCIS (Netherlands)

    Max Aangenendt

    2015-01-01

    The central aim of this dissertation is to increase our understanding of changes in identifications and in the professional identity of employees, by investigating the prominent foci of identification, their mix in higher-order social identities and the personal and organisational factors (HRM and

  7. An Exploratory Mixed Method Assessment of Low Income, Pregnant Hispanic Women's Understanding of Gestational Diabetes and Dietary Change

    Science.gov (United States)

    Rhoads-Baeza, Maria Elena; Reis, Janet

    2012-01-01

    Objective: To describe and assess low income, healthy, pregnant Hispanic women's understanding of gestational diabetes (GDM) and willingness to change aspects of their diet. Design: One-on-one, in-person interviews conducted in Spanish with 94 women (primarily Mexican). Setting: Federal Qualified Community Health Center's prenatal clinic. Method:…

  8. The Development and Validation of an Alternative Assessment to Measure Changes in Understanding of the Longleaf Pine Ecosystem

    Science.gov (United States)

    Dentzau, Michael W.; Martínez, Alejandro José Gallard

    2016-01-01

    A drawing assessment to gauge changes in fourth grade students' understanding of the essential components of the longleaf pine ecosystem was developed to support an out-of-school environmental education program. Pre- and post-attendance drawings were scored with a rubric that was determined to have content validity and reliability among users. In…

  9. Age-Related Changes in Children's Understanding of Effort and Ability: Implications for Attribution Theory and Motivation

    Science.gov (United States)

    Folmer, Amy S.; Cole, David A.; Sigal, Amanda B.; Benbow, Lovisa D.; Satterwhite, Lindsay F.; Swygert, Katherine E.; Ciesla, Jeffrey A.

    2008-01-01

    Building on Nicholls's earlier work, we examined developmental changes in children's understanding of effort and ability when faced with a negative outcome. In a sample of 166 children and adolescents (ages 5-15 years), younger children conflated the meaning of effort and ability, explaining that smart students work hard, whereas older children…

  10. The Effect of Cooperative Learning Approach Based on Conceptual Change Condition on Students' Understanding of Chemical Equilibrium Concepts

    Science.gov (United States)

    Bilgin, Ibrahim; Geban, Omer

    2006-01-01

    The purpose of this study is to investigate the effects of the cooperative learning approach based on conceptual change conditions over traditional instruction on 10th grade students' conceptual understanding and achievement of computational problems related to chemical equilibrium concepts. The subjects of this study consisted of 87 tenth grade…

  11. Boys Growing Up: Understanding Boys' Sexual Health Education and Its Implications for Attitude Change.

    Science.gov (United States)

    Walker, B. M.; Kushner, S.

    Recent research has begun to examine heterosexual male behavior and the early experiences of masculinity. This pilot research project used naturalistic inquiry methodologies to investigate the experience and education of boys/young men in relation to matters of sexual health and masculinity and to develop an understanding of the relationship among…

  12. Technological and structural change : Understanding economic growth in countries and regions

    NARCIS (Netherlands)

    Diodato, D.

    2017-01-01

    The research aims at improving our understanding of the link between economic structure and growth, by tackling a number of open questions. First, it asks whether economic structure – meaning the distribution of production factors among different industries – can significantly explain differences in

  13. A Computer-Aided Exercise for Checking Novices' Understanding of Market Equilibrium Changes.

    Science.gov (United States)

    Katz, Arnold

    1999-01-01

    Describes a computer-aided supplement to the introductory microeconomics course that enhances students' understanding with simulation-based tools for reviewing what they have learned from lectures and conventional textbooks about comparing market equilibria. Includes a discussion of students' learning progressions and retention after using the…

  14. Anatomical Mercury: Changing Understandings of Quicksilver, Blood, and the Lymphatic System, 1650-1800.

    Science.gov (United States)

    Hendriksen, Marieke M A

    2015-10-01

    The use of mercury as an injection mass in anatomical experiments and preparations was common throughout Europe in the long eighteenth century, and refined mercury-injected preparations as well as plates of anatomical mercury remain today. The use and meaning of mercury in related disciplines such as medicine and chemistry in the same period have been studied, but our knowledge of anatomical mercury is sparse and tends to focus on technicalities. This article argues that mercury had a distinct meaning in anatomy, which was initially influenced by alchemical and classical understandings of mercury. Moreover, it demonstrates that the choice of mercury as an anatomical injection mass was deliberate and informed by an intricate cultural understanding of its materiality, and that its use in anatomical preparations and its perception as an anatomical material evolved with the understanding of the circulatory and lymphatic systems. By using the material culture of anatomical mercury as a starting point, I seek to provide a new, object-driven interpretation of complex and strongly interrelated historiographical categories such as mechanism, vitalism, chemistry, anatomy, and physiology, which are difficult to understand through a historiography that focuses exclusively on ideas. © The Author 2014. Published by Oxford University Press. All rights reserved. For permissions, please e-mail: journals.permissions@oup.com.

  15. Early Holocene hydroclimate of Baffin Bay: Understanding the interplay between abrupt climate change events and ice sheet fluctuations

    Science.gov (United States)

    Corcoran, M. C.; Thomas, E. K.; Castañeda, I. S.; Briner, J. P.

    2017-12-01

    Understanding the causes of ice sheet fluctuations resulting in sea level rise is essential in today's warming climate. In high-latitude ice-sheet-proximal environments such as Baffin Bay, studying both the cause and the rate of ice sheet variability during past abrupt climate change events aids in predictions. Past climate reconstructions are used to understand ice sheet responses to changes in temperature and precipitation. The 9,300 and 8,200 yr BP events are examples of abrupt climate change events in the Baffin Bay region during which there were multiple re-advances of the Greenland and Laurentide ice sheets. High-resolution (decadal-scale) hydroclimate variability near the ice sheet margins during these abrupt climate change events is still unknown. We will generate a decadal-scale record of early Holocene temperature and precipitation using leaf wax hydrogen isotopes, δ2Hwax, from a lake sediment archive on Baffin Island, western Baffin Bay, to better understand abrupt climate change in this region. Shifts in temperature and moisture source result in changes in environmental water δ2H, which in turn is reflected in δ2Hwax, allowing for past hydroclimate to be determined from these compound-specific isotopes. The combination of terrestrial and aquatic δ2Hwax is used to determine soil evaporation and is ultimately used to reconstruct moisture variability. We will compare our results with a previous analysis of δ2Hwax and branched glycerol dialkyl glycerol tetraethers, a temperature and pH proxy, in lake sediment from western Greenland, eastern Baffin Bay, which indicates that cool and dry climate occurred in response to freshwater forcing events in the Labrador Sea. Reconstructing and comparing records on both the western and eastern sides of Baffin Bay during the early Holocene will allow for a spatial understanding of temperature and moisture balance changes during abrupt climate events, aiding in ice sheet modeling and predictions of future sea level

  16. U.S. Geological Survey climate and land use change science strategy: a framework for understanding and responding to global change

    Science.gov (United States)

    Burkett, Virginia R.; Kirtland, David A.; Taylor, Ione L.; Belnap, Jayne; Cronin, Thomas M.; Dettinger, Michael D.; Frazier, Eldrich L.; Haines, John W.; Loveland, Thomas R.; Milly, Paul C.D.; ,; ,; ,; Robert, S.; Maule, Alec G.; McMahon, Gerard; Striegl, Robert G.

    2013-01-01

    The U.S. Geological Survey (USGS), a nonregulatory Federal science agency with national scope and responsibilities, is uniquely positioned to serve the Nation’s needs in understanding and responding to global change, including changes in climate, water availability, sea level, land use and land cover, ecosystems, and global biogeochemical cycles. Global change is among the most challenging and formidable issues confronting our Nation and society. Scientists agree that global environmental changes during this century will have far-reaching societal implications (Intergovernmental Panel on Climate Change, 2007; U.S. Global Change Research Program, 2009). In the face of these challenges, the Nation can benefit greatly by using natural science information in decisionmaking.

  17. Environmental change and hydrological responses in the interior of western Canada: Towards improved understanding, diagnosis, and prediction by the Changing Cold Regions Network

    Science.gov (United States)

    DeBeer, C. M.; Wheater, H. S.; Carey, S. K.; Pomeroy, J. W.; Stewart, R. E.

    2016-12-01

    The past several decades have been a period of rapid climatic and environmental change. In western Canada, as in other areas globally, warming and changes in precipitation have led to vast reductions in seasonal snowcover and freshwater ice cover, retreating glaciers, thawing permafrost, changing forest composition and structure, increasing northern shrub coverage, and earlier timing of river flows in spring. Yet streamflow volume has exhibited a variety of responses across the region and over different time scales, and patterns of change are not easily generalizable. Improved understanding, diagnosis, and prediction of the rapidly changing components of the Earth system are key to managing uncertain water futures, but this is challenging due to complex system behavior and sometimes compensatory responses. The Changing Cold Regions Network (CCRN) is a Canadian research network and GEWEX Regional Hydroclimate Project that is addressing these issues, with a geographic focus on the Saskatchewan and Mackenzie River basins. This paper will present examples of the changes that have been observed at a set of long-term and well-studied headwater research basins, and highlight how various processes confound hydrological responses here, pointing to the need for careful diagnosis. We will discuss some recent CCRN activities and progress toward improving conceptual understanding and developing scenarios of change for the 21st century, which can then be applied within process-based hydrological models for future prediction. Several priority research areas that will be a focus of continued work in CCRN will be recommended.

  18. Innovation in Flight: Research of the NASA Langley Research Center on Revolutionary Advanced Concepts for Aeronautics

    Science.gov (United States)

    Chambers, Joseph R.

    2005-01-01

    The goal of this publication is to provide an overview of the topic of revolutionary research in aeronautics at Langley, including many examples of research efforts that offer significant potential benefits, but have not yet been applied. The discussion also includes an overview of how innovation and creativity is stimulated within the Center, and a perspective on the future of innovation. The documentation of this topic, especially the scope and experiences of the example research activities covered, is intended to provide background information for future researchers.

  19. Revolutionary and Christian Ecumenes and Desire for Modernity in the Vietnamese Highlands

    DEFF Research Database (Denmark)

    Salemink, Oscar

    2015-01-01

    Inspired by a critical reading of James Scott's The Art of Not Being Governed (2009) which argued that Highlanders in Southeast Asia have intentionally evaded ‘state capture and state formations’, I offer a contrasting vision of Highlander motivations and desires from the Central Highlands...... in scholarship but in such phrases as ‘remote and backward areas’. For postcolonial Vietnam, I show that Highlanders were often motivated by the desire to become modern, and enacted such desires by joining ecumenes that embody modern universals, in particular revolutionary and Christian ecumenes, exemplifying...... oppositional pathways to modernity that contrast with those offered by authors Tania Li and Holly High....

  20. John Punch, Scotist Holy War, and the Irish Catholic Revolutionary Tradition in the Seventeenth Century.

    Science.gov (United States)

    Campbell, Ian W

    2016-07-01

    During the 1640s, the Irish Franciscan theologian John Punch taught his theology students in Rome that war against Protestants was made just by their religion alone. Jesuits like Luis de Molina identified the holy war tradition in which Punch stood as a Scotist one, and insisted that the Scotists had confused the natural and supernatural spheres. Among Irishmen, Punch was unusual. The main Irish Catholic revolutionary tradition employed Jesuit and Thomist theory. They argued that the Stuarts had lost the right to rule Ireland for natural reasons, not supernatural ones; because the Stuarts were tyrants, not because they were Protestants.

  1. Early industrial stage of modernization pre-revolutionary Russia: sources, tendencies and results

    Directory of Open Access Journals (Sweden)

    Татьяна Михайловна Братченко

    2010-03-01

    Full Text Available In the article the sources, occurrence and development of industrialization of pre-revolutionary Russia at its early stage are analyzed. The authors have shown the basic tendencies and directions of these processes. In the article the set of the reasons of industrialization of Russia is opened, among which not internal conditions, and external factors were basic. Is shown also, that the earli-industrial modernization in the liberal - conservative form has put a society in the extremely unstable, «transitive» condition, that was fraught with social shocks.

  2. [Anarchists, Assassins and Revolutionaries. The Psychopathologization of "Political Criminals" between 1880 and 1920].

    Science.gov (United States)

    Hahn, Judith

    2016-01-01

    "Political criminals" of the early 20th century were adjudged to be psychopaths, a term which was generally accompanied by a negative moral judgement. However, other more positive appraisals were also made at this time. These contradictory moral judgements by psychiatrists expose the need for an examination of the historical development of concepts, traditions and moral debates associated with political criminals (anarchists, assassins, revolutionaries). This will be undertaken in the context of psychiatry/ criminology, security (and surveillance) policy as well as culture and the arts in German-speaking countries from 1880 to the early 1920s.

  3. Revolutionary landscapes: the PCTP/MRPP mural paintings in the Lisbon Metropolitan Area

    Directory of Open Access Journals (Sweden)

    Andre Carmo

    2011-12-01

    Full Text Available This article investigates the mural paintings made by the PCTP/MRPP in the Lisbon Metropolitan Area, in the aftermath of the 1974 Portuguese revolution. Drawing on Erwin Panofsky’s iconographic method of interpretation, murals are explored from an integrated landscape approach that combines two perspectives: landscapes as representations and landscapes as material artifacts. Findings suggest that the PCTP/MRPP mural paintings translated the visual ideology of social transformation and revolution underlying its politics. Furthermore, they also crystallized performative revolutionary landscapes, in the sense that they materialized acts of collective artistic citizenship, in which the social space of mural production played a fundamental role.

  4. How to understand our willingness-to-pay to fight climate change? A choice experiment approach

    OpenAIRE

    De Chaisemartin , Clément; Mahé , Thuriane

    2009-01-01

    We explore the willingness-to-pay (WTP) to fight climate change in a choice experiment. Since tree planting prevents climate change, subjects are offered to choose between receiving a high amount of money or receiving a lower amount of money plus participating to tree planting action. This allows us to get an individual interval of the WTP to prevent climate change. We also set the experiment to control for framing effects: we measure whether subjects WTP is higher not to prevent a tree plant...

  5. Big Data - A Revolutionary "Space" that Changes the Way Business is Done

    Directory of Open Access Journals (Sweden)

    Nicodim Liliana

    2017-01-01

    Since the collection of data expressed as a result of business activity is not a major issue, thechallenge arises when it comes to analyzing, storing, transferring, querying and securinginformation-bearing data. Companies continuously seek to find software products that allow themto analyze these data and help in obtaining relevant information in decision-making.

  6. Restoflex--a revolutionary change in preclinical practice for restorative dentistry and endodontics.

    Science.gov (United States)

    Jain, Shweta; Khaiser, Imran M; Thakur, Sophia; Jain, Shikha

    2014-05-01

    Preclinical exercises are very important for the dental students in order to master various dental techniques. The objective of this article is to introduce a new preclinical working model named Restoflex. It is especially designed for the students to carry out various restorative and endodontic procedures in an environment that closely simulate clinical situations. This will help them to provide a smooth transition from preclinical environment to the clinical one. It would also mean an increased confidence level and the efficiency with which the students would deal with their cases.

  7. Transforming Department of Defense’s Core Business Processes for Revolutionary Change

    Science.gov (United States)

    2015-01-01

    of experiences. He served as President and Chief Operating Officer of Medco Health Solutions until 2012. Mr. Klepper was recruited to Medco...billion. From 1995 to 2003 Mr. Klepper was an executive at Empire Blue Cross Blue Shield of New York, the nation’s largest Blue Cross franchise . He was...the first executive recruited to the CEO’s turnaround team to help the company recover from near bankruptcy. Within twelve months, financial

  8. Evaluation of carcinogenic hazard of diesel engine exhaust needs to consider revolutionary changes in diesel technology.

    Science.gov (United States)

    McClellan, Roger O; Hesterberg, Thomas W; Wall, John C

    2012-07-01

    Diesel engines, a special type of internal combustion engine, use heat of compression, rather than electric spark, to ignite hydrocarbon fuels injected into the combustion chamber. Diesel engines have high thermal efficiency and thus, high fuel efficiency. They are widely used in commerce prompting continuous improvement in diesel engines and fuels. Concern for health effects from exposure to diesel exhaust arose in the mid-1900s and stimulated development of emissions regulations and research to improve the technology and characterize potential health hazards. This included epidemiological, controlled human exposure, laboratory animal and mechanistic studies to evaluate potential hazards of whole diesel exhaust. The International Agency for Research on Cancer (1989) classified whole diesel exhaust as - "probably carcinogenic to humans". This classification stimulated even more stringent regulations for particulate matter that required further technological developments. These included improved engine control, improved fuel injection system, enhanced exhaust cooling, use of ultra low sulfur fuel, wall-flow high-efficiency exhaust particulate filters, exhaust catalysts, and crankcase ventilation filtration. The composition of New Technology Diesel Exhaust (NTDE) is qualitatively different and the concentrations of particulate constituents are more than 90% lower than for Traditional Diesel Exhaust (TDE). We recommend that future reviews of carcinogenic hazards of diesel exhaust evaluate NTDE separately from TDE. Copyright © 2012 Elsevier Inc. All rights reserved.

  9. A Plan for Revolutionary Change in Gas Turbine Engine Control System Architecture

    Science.gov (United States)

    Culley, Dennis E.

    2011-01-01

    The implementation of Distributed Engine Control technology on the gas turbine engine has been a vexing challenge for the controls community. A successful implementation requires the resolution of multiple technical issues in areas such as network communications, power distribution, and system integration, but especially in the area of high temperature electronics. Impeding the achievement has been the lack of a clearly articulated message about the importance of the distributed control technology to future turbine engine system goals and objectives. To resolve these issues and bring the technology to fruition has, and will continue to require, a broad coalition of resources from government, industry, and academia. This presentation will describe the broad challenges facing the next generation of advanced control systems and the plan which is being put into action to successfully implement the technology on the next generation of gas turbine engine systems.

  10. Seven experiments that could change the world a do-it-yourself guide to revolutionary science

    CERN Document Server

    Sheldrake, Rupert

    1994-01-01

    Seven experiments are proposed in this book that the author believes, if any are successful, will alter how the reader perceives the world. The purpose of the book is to draw attention to areas of research neglected as a result of conventional habits of thought. The descriptions of the experiments are intended to focus the topics under discussion. One of the experiments in the book aims to test the hypothesis that many dogs and cats know that their owners are coming home before they actually arrive. Rupert Sheldrake has also written "The Presence of the Past" and "The Rebirth of Nature".

  11. Software Defined Electronics: A Revolutionary Change in Design and Teaching Paradigm of RF Radio Communications Systems

    Directory of Open Access Journals (Sweden)

    Géza Kolumbán

    2015-06-01

    Full Text Available Band-pass signals are used everywhere in radio communications. The band-pass property makes the substitution of each RF/microwave/ optical analog signal processing possible with a low-frequency digital one in Software Defined Electronics (SDE. In SDE, the high frequency band-pass signals are transformed into the BaseBand (BB by a universal HW device and every application is implemented in BB, entirely in software. SDE concept uses (i the lowest sampling rate attainable theoretically and (ii the same universal HW device in every application. The huge level of flexibility offered by the SW implementation is essential in many applications from cognitive radio to adaptive reconfigurable systems. This tutorial, written for interested readers who have no solid background in software defined radio, virtual instrumentation and SoC technology, surveys the SDE theory, uses a step-by-step approach for the derivation of BB equivalents and demonstrates the application of SDE concept in scientific research, prototyping and education.

  12. From Gettysburg to the Gulf and Beyond: Coping With Revolutionary Technological Change in Land Warfare

    Science.gov (United States)

    1993-01-01

    afire by the thesis that massive aster- oid strikes caused past mass extinctions of the dinosaurs . Military Paradigms. Kuhn’s work, which has been...with the consequence usually being an extremely bloody and expensive war, in which neither side achieves its war aims at a reasonable cost. Or one...break through a defense at reasonable cost? Yes--but only under favorable circumstances. The objec- tive in a breakthrough is for the exposed

  13. Adaptation to climate change and climate variability:The importance of understanding agriculture as performance

    NARCIS (Netherlands)

    Crane, T.A.; Roncoli, C.; Hoogenboom, G.

    2011-01-01

    Most climate change studies that address potential impacts and potential adaptation strategies are largely based on modelling technologies. While models are useful for visualizing potential future outcomes and evaluating options for potential adaptation, they do not adequately represent and

  14. Understanding smallholder farmers’ capacity to respond to climate change in a coastal community in Central Vietnam

    NARCIS (Netherlands)

    Phuong, Le Thi Hong; Biesbroek, G.R.; Sen, Le Thi Hoa; Wals, Arjen E.J.

    2017-01-01

    Climate change as expressed by erratic rainfall, increased flooding, extended droughts, frequency tropical cyclones or saline water intrusion, poses severe threats to smallholder farmers in Vietnam. Adaptation of the agricultural sector is vital to increase the resilience of smallholder farmers’

  15. Beyond demographics is destiny: understanding economic mitigation strategies for demographic change in China

    OpenAIRE

    Judy, John B.

    2015-01-01

    Approved for public release; distribution is unlimited The favorable demographics that have contributed to China’s rapid economic growth are changing. China’s working-age population is currently peaking and within two decades its overall population will begin to shrink. In addition to a shrinking working-age population, China will see an increase in the elderly population and a rising dependency ratio. This demographic change may have an economically significant impact. If China’s enormous...

  16. An Australian Feeling for Snow: Towards Understanding Cultural and Emotional Dimensions of Climate Change

    Directory of Open Access Journals (Sweden)

    Andrew Gorman-Murray

    2010-03-01

    Full Text Available In Australia, snow is associated with alpine and subalpine regions in rural areas; snow is a component of ‘natural’ rather than urban environments. But the range, depth and duration of Australia’s regional snow cover is imperilled by climate change. While researchers have considered the impacts of snow retreat on the natural environment and responses from the mainland ski industry, this paper explores associated cultural and emotional dimensions of climate change. This responds to calls to account for local meanings of climate, and thus localised perceptions of and responses to climate change. Accordingly, this paper presents a case study of reactions to the affect of climate change on Tasmania’s snow country. Data is drawn from a nationwide survey of responses to the impact of climate change on Australia’s snow country, and a Tasmanian focus group. Survey respondents suggested the uneven distribution of Australia’s snow country means snow cover loss may matter more in certain areas: Tasmania was a key example cited by residents of both that state and others. Focus group respondents affirmed a connection between snow and Tasmanian cultural identity, displaying sensitivity to recent changing snow patterns. Moreover, they expressed concerns about the changes using emotive descriptions of local examples: the loss of snow cover mattered culturally and emotionally, compromising local cultural activities and meanings, and invoking affective responses. Simultaneously, respondents were ‘realistic’ about how important snow loss was, especially juxtaposed with sea level rise. Nevertheless, the impact of climate change on cultural and emotional attachments can contribute to urgent ethical, practical and political arguments about arresting global warming.

  17. Examination of rapid phase change in copper wires to improve material models and understanding of burst

    Science.gov (United States)

    Olles, Joseph; Garasi, Christopher; Ball, J. Patrick

    2017-11-01

    Electrically-pulsed wires undergo multiple phase changes including a postulated metastable phase resulting in explosive wire growth. Simulations using the MHD approximation attempt to account for the governing physics, but lack the material properties (equations-of-state and electrical conductivity) to accurately predict the phase evolution of the exploding (bursting) wire. To explore the dynamics of an exploding copper wire (in water), we employ a digital micro-Schlieren streak photography technique. This imaging quantifies wire expansion and shock waves emitted from the wire during phase changes. Using differential voltage probes, a Rogowski coil, and timing fiducials, the phase change of the wire is aligned with electrical power and energy deposition. Time-correlated electrical diagnostics and imaging allow for detailed validation of MHD simulations, comparing observed phases with phase change details found in the material property descriptions. In addition to streak imaging, a long exposure image is taken to capture axial striations along the length of the wire. These images are used to compare with results from 3D MHD simulations which propose that these perturbations impact the rate of wire expansion and temporal change in phases. If successful, the experimental data will identify areas for improvement in the material property models, and modeling results will provide insight into the details of phase change in the wire with correlation to variations in the electrical signals.

  18. Facilitating conceptual change in students’ understanding of concepts related to pressure

    Science.gov (United States)

    Ozkan, Gulbin; Sezgin Selcuk, Gamze

    2016-09-01

    The aim of this research was to explore the effects of three different types of methods of learning physics (conceptual change-based, real life context-based and traditional learning) on high school physics students in the 11th grade in terms of conceptual change they achieved in learning about the various topics (pressure exerted by solids, pressure in stagnant liquids and gases, buoyancy, Bernoulli’s principle). In this study, a pre-test/post-test quasi-experimental method with nonequivalent control group, involving a 3 (group) × 2 (time) factorial design was used. Study group 1 were given the conceptual change texts on the mentioned subjects, study group 2 were offered a teaching approach based on real life context-based learning, whereas the control group was taught in the traditional style. Data for the research were collected with the ‘pressure conceptual test’. As a result of research, the number of misconceptions had been reduced or shifted altogether in all three groups. After the instruction, it was seen that none of the students formed new misconceptions. It was found that the most positive change could be seen in the conceptual change text group followed by context-based and lastly traditional. The fact that none of the students formed new misconceptions is important, particularly since research such as the following shows that conceptual change is tenuous and inconsistent, taking time to shift in a sustained manner.

  19. The authoritative metaphor and social change: Surgeon General C. Everett Koop's Direct Mailer, "Understanding AIDS".

    Science.gov (United States)

    Jensen, Robin E; King, Abigail Selzer

    2013-01-01

    In 1988, Surgeon General C. Everett Koop published "Understanding AIDS," the nation's first and only direct mailing sent to every private home in the country. His appeals therein were driven by what we label authoritative metaphors. Communicated by and/or attributed to persons of authority, authoritative metaphors capitalize on the symbolic force of sanctioned power by appealing to the ethos of office. In "Understanding AIDS," we find that Koop drew from his positions as a surgeon and a general, respectively, to equate AIDS with an unprecedented plague and an unprecedented war. He created new authoritative metaphors out of the vestiges of familiar metaphors related to disease and public health and thereby portrayed AIDS as a recognizable but decisively unique dilemma requiring distinct preventative behaviors.

  20. Meaningful Ways of Understanding and Measuring Change for People with Borderline Personality Disorder: A Thematic Analysis.

    Science.gov (United States)

    McCusker, Louise; Turner, Marie-Louise; Pike, Georgina; Startup, Helen

    2018-02-19

    The effective treatment of Borderline Personality Disorder (BPD) presents healthcare providers with a significant challenge. The evidence base remains limited partially due to a lack of professional consensus and service user involvement regarding ways of measuring change. As a result, the limited evidence that is available draws on such a wide range of outcome measures, that comparison across treatment types is hindered, maintaining a lack of clarity regarding the clinical needs of this group. This investigation aimed to follow the National Institute of Clinical Excellence (NICE, 2009) research recommendations by asking service users about meaningful change within their recovery. This forms a starting point for the future development of a tailored outcome measure. Fifteen service users with a diagnosis of BPD participated in three focus groups across two specialist Personality Disorder services. The focus groups were analysed using Thematic Analysis. Two superordinate themes were synthesized from the data: (1) recovery to what?: 'How do you rewrite who you are?'; and (2) conditions for change. Each superordinate theme further consisted of three subordinate themes which elucidated the over-arching themes. This investigation highlights the complex nature of measuring change in people who have received a BPD diagnosis. Further research is needed to develop meaningful ways of measuring change according to the needs and priorities of people with BPD.

  1. Obesity emergence in the Pacific islands: why understanding colonial history and social change is important.

    Science.gov (United States)

    McLennan, Amy K; Ulijaszek, Stanley J

    2015-06-01

    Between 1980 and 2008, two Pacific island nations - Nauru and the Cook Islands - experienced the fastest rates of increasing BMI in the world. Rates were over four times higher than the mean global BMI increase. The aim of the present paper is to examine why these populations have been so prone to obesity increases in recent times. Three explanatory frames that apply to both countries are presented: (i) geographic isolation and genetic predisposition; (ii) small population and low food production capacity; and (iii) social change under colonial influence. These are compared with social changes documented by anthropologists during the colonial and post-colonial periods. Nauru and the Cook Islands. While islands are isolated, islanders are interconnected. Similarly, islands are small, but land use is socially determined. While obesity affects individuals, islanders are interdependent. New social values, which were rapidly propagated through institutions such as the colonial system of education and the cash economy, are today reflected in all aspects of islander life, including diet. Such historical social changes may predispose societies to obesity. Colonial processes may have put in place the conditions for subsequent rapidly escalating obesity. Of the three frameworks discussed, social change under colonial influence is not immutable to further change in the future and could take place rapidly. In theorising obesity emergence in the Pacific islands, there is a need to incorporate the idea of obesity being a product of interdependence and interconnectedness, rather than independence and individual choice.

  2. Understanding land use change impacts on microclimate using Weather Research and Forecasting (WRF) model

    Science.gov (United States)

    Li, Xia; Mitra, Chandana; Dong, Li; Yang, Qichun

    2018-02-01

    To explore potential climatic consequences of land cover change in the Kolkata Metropolitan Development area, we projected microclimate conditions in this area using the Weather Research and Forecasting (WRF) model driven by future land use scenarios. Specifically, we considered two land conversion scenarios including an urbanization scenario that all the wetlands and croplands would be converted to built-up areas, and an irrigation expansion scenario in which all wetlands and dry croplands would be replaced by irrigated croplands. Results indicated that land use and land cover (LULC) change would dramatically increase regional temperature in this area under the urbanization scenario, but expanded irrigation tended to have a cooling effect. In the urbanization scenario, precipitation center tended to move eastward and lead to increased rainfall in eastern parts of this region. Increased irrigation stimulated rainfall in central and eastern areas but reduced rainfall in southwestern and northwestern parts of the study area. This study also demonstrated that urbanization significantly reduced latent heat fluxes and albedo of land surface; while increased sensible heat flux changes following urbanization suggested that developed land surfaces mainly acted as heat sources. In this study, climate change projection not only predicts future spatiotemporal patterns of multiple climate factors, but also provides valuable insights into policy making related to land use management, water resource management, and agriculture management to adapt and mitigate future climate changes in this populous region.

  3. Understanding The Individual Impacts Of Human Interventions And Climate Change On Hydrologic Variables In India

    Science.gov (United States)

    Sharma, T.; Chhabra, S., Jr.; Karmakar, S.; Ghosh, S.

    2015-12-01

    We have quantified the historical climate change and Land Use Land Cover (LULC) change impacts on the hydrologic variables of Indian subcontinent by using Variable Infiltration Capacity (VIC) mesoscale model at 0.5° spatial resolution and daily temporal resolution. The results indicate that the climate change in India has predominating effects on the basic water balance components such as water yield, evapotranspiration and soil moisture. This analysis is with the assumption of naturalised hydrologic cycle, i.e., the impacts of human interventions like construction of controlled (primarily dams, diversions and reservoirs) and water withdrawals structures are not taken into account. The assumption is unrealistic since there are numerous anthropogenic disturbances which result in large changes on vegetation composition and distribution patterns. These activities can directly or indirectly influence the dynamics of water cycle; subsequently affecting the hydrologic processes like plant transpiration, infiltration, evaporation, runoff and sublimation. Here, we have quantified the human interventions by using the reservoir and irrigation module of VIC model which incorporates the irrigation schemes, reservoir characteristics and water withdrawals. The impact of human interventions on hydrologic variables in many grids are found more predominant than climate change and might be detrimental to water resources at regional level. This spatial pattern of impacts will facilitate water manager and planners to design and station hydrologic structures for a sustainable water resources management.

  4. Understanding the role of emotion-oriented coping in women's motivation for change.

    Science.gov (United States)

    Wu, Qiong; Slesnick, Natasha; Zhang, Jing

    2018-03-01

    This study tested a sequential mediation model that emotion-oriented coping and motivation for change mediate the relations between anxiety and depressive symptoms and the change in substance use. Data included 183 substance using women, randomly assigned to family therapy (N=123) or individual therapy (N=60). They reported their baseline anxiety and depressive symptoms, emotion-oriented coping, as well as motivation for change throughout treatment, and substance use over a time period of 1.5years. Latent growth curve modeling showed that increased baseline motivation was associated with a faster decline in alcohol and drug use. Moreover, higher baseline anxiety and depressive symptoms were associated with a faster decrease in drug use through higher emotion-oriented coping and higher baseline motivation. This study underscores the importance of emotion-oriented coping in increasing clients' motivation and reducing their drug use. Copyright © 2017 Elsevier Inc. All rights reserved.

  5. "I Feel Suffocated:" Understandings of Climate Change in an Inner City Heat Island.

    Science.gov (United States)

    Singer, Merrill; Hasemann, Jose; Raynor, Abigail

    2016-01-01

    Global climate change is contributing to a range of adverse environmental and weather shifts, including more intense and more frequent heatwaves and an intensification of the urban heat island effect. These changes are known to produce a set of significant and differentially distributed health problems, with a particularly high burden among poor and marginalized populations. In this article, we report findings from a qualitative study of community knowledge, attitudes, health and other concerns, and behavioral responses regarding mounting urban temperatures and related environmental health issues among Latinos living in the city of Hartford, CT in northeast United States. Findings suggest the need for enhanced participation in knowledge dissemination and preparedness planning based on the coproduction of knowledge about climate change and community responses to it. The special role of anthropology in such efforts is highlighted.

  6. Understanding the relationship of maternal health behavior change and intervention strategies in a Nicaraguan NGO network.

    Science.gov (United States)

    Valadez, Joseph J; Hage, Jerald; Vargas, William

    2005-09-01

    Few studies of community interventions examine independent effects of investments in: (1) capital (i.e., physical, human and social capital), and (2) management systems (e.g., monitoring and evaluation systems (M&E)) on maternal and child health behavior change. This paper does this in the context of an inter-organizational network. In Nicaragua, international non-governmental organizations (NGOs) and local NGOs formed the NicaSalud Federation. Using Lot Quality Assurance Sampling (LQAS), 14 member organizations took baselines measures of maternal safe motherhood and child health behavior indicators during November 1999 and August 2000, respectively, and final evaluation measures in December 2001. In April 2002, retrospective interviews were conducted with supervisors and managers in the 14 organizations to explore changes made to community health strategies, factors associated with the changes, and impacts they attributed to participating in NicaSalud. Physical capital (density of health huts), human capital (density and variety of paramedical personnel) and social capital (density of health committees) were associated with pregnant women attending antenatal care (ANC) 3+ times, and/or retaining ANC cards. The variety of paramedic personnel was also associated with women making post-partum visits to clinics. Physical capital (density of health huts) and social capital (density of health committees and mothers' clubs) were associated with child diarrhea case management indicators. One safe motherhood indicator (delivery of babies by a clinician) was not associated with intervention strategies. At the management level, NicaSalud's training of members to use LQAS for M&E was associated with the number of strategic and tactical changes they subsequently made to interventions (organizational learning). Organizational learning was related to changes in maternal and child health behaviors of the women (including changes in the proportion using post-partum care). As the

  7. The understanding of world climate change; Les connaissances sur le changement climatique mondial

    Energy Technology Data Exchange (ETDEWEB)

    Petit, M.

    2008-07-01

    After having recalled that the problem of global warming in relationship with human activities has been studied since the end of the nineteenth century and since then by different scientific programs, the author describes how the IPCC's or Intergovernmental Panel on Climate Change's report is produced. He briefly comments how Earth's temperature is determined and the various natural parameters which influence the climate on Earth. He recalls how the IPCC showed the actual influence of human activities, and which changes have actually been observed

  8. A survey of doctors at a UK teaching hospital to assess understanding of recent changes to consent law.

    Science.gov (United States)

    O'Brien, J W; Natarajan, M; Shaikh, I

    2017-06-01

    The UK Supreme Court recently ruled that when consenting patients for treatments or procedures, clinicians must also discuss any associated material risks. We surveyed medical staff at a large UK teaching hospital in order to ascertain knowledge of consent law and current understanding of this change. Email survey sent to medical staff in all specialities at Norfolk and Norwich University Hospital in February 2016. 245 responses (141 Consultants and 104 junior doctors, response rate 32%). 82% consent patients for procedures at least monthly and 23% daily. 31% were not familiar with the concept of material risk. 35% were familiar with the recent change in consent law, 41% were not. 18% were "very uncertain" and 64% "a little uncertain" that their consenting process meets current legal requirements. >92% think that landmark cases and changes in law should be discussed through professional bodies and circulated better locally. The majority were not familiar with the concept of material risk and recent legal changes. A majority were not confident that their practice meets current requirements, suggesting that recent changes in consent law may not be widely understood at this hospital. We suggest more guidance and education may be necessary than is currently available. Increased understanding of recent changes to consent law will reduce the risk taken by NHS trusts and offer patients a service compliant with Supreme Court guidance.

  9. Travel Behavior Change in Older Travelers: Understanding Critical Reactions to Incidents Encountered in Public Transport

    Directory of Open Access Journals (Sweden)

    Catherine Sundling

    2015-11-01

    Full Text Available Accessibility of travel may be better understood if psychological factors underlying change in travel behavior are known. This paper examines older (65+ travelers’ motives for changing their travel behavior. These changes are grounded in critical incidents earlier encountered in public-transport travel. A scientific framework is developed based on cognitive and behavioral theory. In 29 individual interviews, travelers’ critical reactions (i.e., cognitive, emotional, and/or behavioral to 77 critical incidents were examined. By applying critical incident technique (CIT, five reaction themes were identified that had generated travel-behavior change: firm restrictions, unpredictability, unfair treatment, complicated trips, and earlier adverse experiences. To improve older travelers’ access to public transport, key findings were: (a service must be designed so as to strengthen the feeling of being in control throughout the journey; (b extended personal service would increase predictability in the travel chain and decrease travel complexity; consequently, (c when designing new services and making effective accessibility interventions, policy makers should consider and utilize underlying psychological factors that could direct traveler behavior.

  10. Travel Behavior Change in Older Travelers: Understanding Critical Reactions to Incidents Encountered in Public Transport

    Science.gov (United States)

    Sundling, Catherine

    2015-01-01

    Accessibility of travel may be better understood if psychological factors underlying change in travel behavior are known. This paper examines older (65+) travelers’ motives for changing their travel behavior. These changes are grounded in critical incidents earlier encountered in public-transport travel. A scientific framework is developed based on cognitive and behavioral theory. In 29 individual interviews, travelers’ critical reactions (i.e., cognitive, emotional, and/or behavioral) to 77 critical incidents were examined. By applying critical incident technique (CIT), five reaction themes were identified that had generated travel-behavior change: firm restrictions, unpredictability, unfair treatment, complicated trips, and earlier adverse experiences. To improve older travelers’ access to public transport, key findings were: (a) service must be designed so as to strengthen the feeling of being in control throughout the journey; (b) extended personal service would increase predictability in the travel chain and decrease travel complexity; consequently, (c) when designing new services and making effective accessibility interventions, policy makers should consider and utilize underlying psychological factors that could direct traveler behavior. PMID:26593935

  11. Promoting Instructional Change: Using Social Network Analysis to Understand the Informal Structure of Academic Departments

    Science.gov (United States)

    Quardokus, Kathleen; Henderson, Charles

    2015-01-01

    Calls for improvement of undergraduate science education have resulted in numerous initiatives that seek to improve student learning outcomes by promoting changes in faculty teaching practices. Although many of these initiatives focus on individual faculty, researchers consider the academic department to be a highly productive focus for creating…

  12. Understanding changes in the motivation of stroke patients undergoing rehabilitation in hospital

    NARCIS (Netherlands)

    Pickrell, M.; Bongers, B.; van den Hoven, E.

    2016-01-01

    Stroke patient motivation can fluctuate during rehabilitation due to a range of factors. This study reports on qualitative research, consisting of observations of stroke patients undergoing rehabilitation and interviews with patients about the changes in motivation they identified during their time

  13. New Approaches to FIA data for understanding distribution, abundance, and response to climate change

    Science.gov (United States)

    Kai Zhu; Souparno Ghosh; Alan E. Gelfand; James S. Clark

    2012-01-01

    We are using Forest Inventory and Analysis data to examine evidence for tree responses to climate change. By comparing seedling and tree occurrence data, we found that there is not yet evidence that tree populations in the eastern half of the United States are shifting geographic ranges to higher latitude in response to warming temperature. We are developing novel...

  14. Travel Behavior Change in Older Travelers: Understanding Critical Reactions to Incidents Encountered in Public Transport.

    Science.gov (United States)

    Sundling, Catherine

    2015-11-18

    Accessibility of travel may be better understood if psychological factors underlying change in travel behavior are known. This paper examines older (65+) travelers' motives for changing their travel behavior. These changes are grounded in critical incidents earlier encountered in public-transport travel. A scientific framework is developed based on cognitive and behavioral theory. In 29 individual interviews, travelers' critical reactions (i.e., cognitive, emotional, and/or behavioral) to 77 critical incidents were examined. By applying critical incident technique (CIT), five reaction themes were identified that had generated travel-behavior change: firm restrictions, unpredictability, unfair treatment, complicated trips, and earlier adverse experiences. To improve older travelers' access to public transport, key findings were: (a) service must be designed so as to strengthen the feeling of being in control throughout the journey; (b) extended personal service would increase predictability in the travel chain and decrease travel complexity; consequently, (c) when designing new services and making effective accessibility interventions, policy makers should consider and utilize underlying psychological factors that could direct traveler behavior.

  15. Pathways of understanding: The interactions of humanity and global environmental change

    International Nuclear Information System (INIS)

    Jacobson, H.K.; Katzenberger, J.; Lousma, J.; Mooney, H.A.; Moss, R.H.; Kuhn, W.; Luterbacher, U.; Wiegandt, E.

    1992-01-01

    How humans, interacting within social systems, affect and are affected by global change is explored. Recognizing the impact human activities have on the environment and responding to the need to document the interactions among human activities, the Consortium for International Earth Science Information Network (CIESIN) commissioned a group of 12 scientists to develop a framework illustrating the key human systems that contribute to global change. This framework, called the Social Process Diagram, will help natural and social scientists, educators, resource managers and policy makers envision and analyze how human systems interact among themselves and with the natural system. The Social Process Diagram consists of the following blocks that constitute the Diagram's structural framework: (1) fund of knowledge and experience; (2) preferences and expectations; (3) factors of production and technology; (4) population and social structure; (5) economic systems; (6) political systems and institutions; and (7) global scale environmental processes. To demonstrate potential ways the Diagram can be used, this document includes 3 hypothetical scenarios of global change issues: global warming and sea level rise; the environmental impact of human population migration; and energy and the environment. These scenarios demonstrate the Diagram's usefulness for visualizing specific processes that might be studied to evaluate a particular global change issues. The scenario also shows that interesting and unanticipated questions may emerge as links are explored between categories on the Diagram

  16. Understanding Personal Change in a Women’s Faith-Based Transitional Center

    Directory of Open Access Journals (Sweden)

    Ariana Mishay Stone

    2011-06-01

    Full Text Available An impressive research literature has emerged that identifies linkages between religion and a wide range of attitudes, behaviors, and life events. We contribute to this literature by exploring how women undergoing difficult life circumstances—such as incarceration, drug and alcohol addiction, domestic violence, unemployment, and homelessness—use faith to cope with and change these circumstances. To address this issue we analyze semi-structured interviews with 40 residents of a faith-based transitional center for women in the Southern United States. The residents outline a narrative of change in which they distinguish between the “old self” and “new self.” The narratives also specify the role of religiosity in facilitating change, the creation of a faith-based identity, and the strategies used for maintaining change. We conclude with implications for faith-based treatment programs, local pastors and religious congregants involved in social outreach ministry, sociology of religion scholars, and policy makers.

  17. Pathways of Understanding: the Interactions of Humanity and Global Environmental Change

    Science.gov (United States)

    Jacobson, Harold K.; Katzenberger, John; Lousma, Jack; Mooney, Harold A.; Moss, Richard H.; Kuhn, William; Luterbacher, Urs; Wiegandt, Ellen

    1992-01-01

    How humans, interacting within social systems, affect and are affected by global change is explored. Recognizing the impact human activities have on the environment and responding to the need to document the interactions among human activities, the Consortium for International Earth Science Information Network (CIESIN) commissioned a group of 12 scientists to develop a framework illustrating the key human systems that contribute to global change. This framework, called the Social Process Diagram, will help natural and social scientists, educators, resource managers and policy makers envision and analyze how human systems interact among themselves and with the natural system. The Social Process Diagram consists of the following blocks that constitute the Diagram's structural framework: (1) fund of knowledge and experience; (2) preferences and expectations; (3) factors of production and technology; (4) population and social structure; (5) economic systems; (6) political systems and institutions; and (7) global scale environmental processes. To demonstrate potential ways the Diagram can be used, this document includes 3 hypothetical scenarios of global change issues: global warming and sea level rise; the environmental impact of human population migration; and energy and the environment. These scenarios demonstrate the Diagram's usefulness for visualizing specific processes that might be studied to evaluate a particular global change issues. The scenario also shows that interesting and unanticipated questions may emerge as links are explored between categories on the Diagram.

  18. Prospective Primary Teachers' Understanding of Climate Change, Greenhouse Effect, and Ozone Layer Depletion

    Science.gov (United States)

    Papadimitriou, Vasiliki

    2004-01-01

    Climate change is one of the most serious global environmental problems and for that reason there has been lately a great interest in educating pupils, the future citizens, about it. Previous research has shown that pupils of all ages and teachers hold many misconceptions and misunderstandings concerning this issue. This paper reports on research…

  19. Refugia: identifying and understanding safe havens for biodiversity under climate change

    NARCIS (Netherlands)

    Keppel, G.; Niel, Van K.P.; Wardell-Johnson, G.W.; Yates, C.J.; Byrne, M.; Mucina, L.; Schut, A.G.T.; Hopper, S.D.; Franklin, S.E.

    2012-01-01

    Aim Identifying and protecting refugia is a priority for conservation under projected anthropogenic climate change, because of their demonstrated ability to facilitate the survival of biota under adverse conditions. Refugia are habitats that components of biodiversity retreat to, persist in and can

  20. Back to the future? Understanding Change in Food Habits of Farmers' Market Customers

    NARCIS (Netherlands)

    Pascucci, S.; Cicatiello, C.; Franco, S.; Pancino, B.; Marinov, D.; Davide, M.

    2011-01-01

    This study analyses how attending farmers markets may affect consumers’ willingness to change food habits toward high-quality products. A discrete choice model was applied using data col-lected through an extensive field survey in 2009, which involved 400 consumers in 12 different farmers’ markets

  1. Understanding farm trajectories and development pathways: Two decades of change in southern Mali

    NARCIS (Netherlands)

    Falconnier, G.N.; Descheemaeker, K.K.E.; Mourik, van T.A.; Sanogo, O.; Giller, K.E.

    2015-01-01

    Institutional support for smallholders has been the motor for the expanding cotton production sector in southern Mali since the 1970s. Smallholder farms exhibit diverse resource endowments and little is known on how they benefit from and cope with changes in this institutional support. In this paper

  2. Displaying Now-Understanding: The Finnish Change-of-State Token "aa"

    Science.gov (United States)

    Koivisto, Aino

    2015-01-01

    This article discusses the use of the Finnish change-of-state token "aa" that has previously not been identified. The central claim is that even though "aa" indicates a cognitive shift experienced by the speaker, it does not function as a receipt of new information. Instead, the token "aa" indicates that the speaker…

  3. Understanding the Influence of Organizational Culture and Group Dynamics on Organizational Change and Learning

    Science.gov (United States)

    Lucas, Colleen; Kline, Theresa

    2008-01-01

    Purpose: The purpose of this study is to investigate the relationship between organizational culture, group dynamics, and organizational learning in the context of organizational change. Design/methodology/approach: A case study was used to examine cultural and group level factors that potentially influence groups' learning in the context of…

  4. Has growth mixture modeling improved our understanding of how early change predicts psychotherapy outcome?

    Science.gov (United States)

    Koffmann, Andrew

    2017-03-02

    Early change in psychotherapy predicts outcome. Seven studies have used growth mixture modeling [GMM; Muthén, B. (2001). Second-generation structural equation modeling with a combination of categorical and continuous latent variables: New opportunities for latent class-latent growth modeling. In L. M. Collins & A. G. Sawyers (Eds.), New methods for the analysis of change (pp. 291-322). Washington, DC: American Psychological Association] to identify patient classes based on early change but have yielded conflicting results. Here, we review the earlier studies and apply GMM to a new data set. In a university-based training clinic, 251 patients were administered the Outcome Questionnaire-45 [Lambert, M. J., Hansen, N. B., Umphress, V., Lunnen, K., Okiishi, J., Burlingame, G., … Reisinger, C. W. (1996). Administration and scoring manual for the Outcome Questionnaire (OQ 45.2). Wilmington, DE: American Professional Credentialing Services] at each psychotherapy session. We used GMM to identify class structure based on change in the first six sessions and examined trajectories as predictors of outcome. The sample was best described as a single class. There was no evidence of autoregressive trends in the data. We achieved better fit to the data by permitting latent variables some degree of kurtosis, rather than to assume multivariate normality. Treatment outcome was predicted by the amount of early improvement, regardless of initial level of distress. The presence of sudden early gains or losses did not further improve outcome prediction. Early improvement is an easily computed, powerful predictor of psychotherapy outcome. The use of GMM to investigate the relationship between change and outcome is technically complex and computationally intensive. To date, it has not been particularly informative.

  5. Understanding and Managing the Effects of Climate Change on Ecosystem Services in the Rocky Mountains

    Directory of Open Access Journals (Sweden)

    Jessica E. Halofsky

    2017-08-01

    Full Text Available Public lands in the US Rocky Mountains provide critical ecosystem services, especially to rural communities that rely on these lands for fuel, food, water, and recreation. Climate change will likely affect the ability of these lands to provide ecosystem services. We describe 2 efforts to assess climate change vulnerabilities and develop adaptation options on federal lands in the Rocky Mountains. We specifically focus on aspects that affect community economic security and livelihood security, including water quality and quantity, timber, livestock grazing, and recreation. Headwaters of the Rocky Mountains serve as the primary source of water for large populations, and these headwaters are located primarily on public land. Thus, federal agencies will play a key role in helping to protect water quantity and quality by promoting watershed function and water conservation. Although increased temperatures and atmospheric concentration of CO2 have the potential to increase timber and forage production in the Rocky Mountains, those gains may be offset by wildfires, droughts, insect outbreaks, non-native species, and altered species composition. Our assessment identified ways in which federal land managers can help sustain forest and range productivity, primarily by increasing ecosystem resilience and minimizing current stressors, such as invasive species. Climate change will likely increase recreation participation. However, recreation managers will need more flexibility to adjust practices, provide recreation opportunities, and sustain economic benefits to communities. Federal agencies are now transitioning from the planning phase of climate change adaptation to implementation to ensure that ecosystem services will continue to be provided from federal lands in a changing climate.

  6. Radioisotope tracer approach for understanding the impacts of global change-induced pedoturbation on soil C dynamics

    Science.gov (United States)

    Gonzalez-Meler, M. A.; Sturchio, N. C.; Sanchez-de Leon, Y.; Blanc-Betes, E.; Taneva, L.; Poghosyan, A.; Norby, R. J.; Filley, T. R.; Guilderson, T. P.; Welker, J. M.

    2010-12-01

    Biogeochemical carbon-cycle feedbacks to climate are apparent but uncertain, primarily because of gaps in mechanistic understanding on the ecosystem processes that drive carbon cycling and storage in terrestrial ecosystems, particularly in soils. Recent findings are increasingly recognizing the interaction between soil biota and the soil physical environment. Soil carbon turnover is partly determined by burial of organic matter and its physical and chemical protection. These factors are potentially affected by changes in climate (freezing-thawing or wet-drying cycles) or ecosystem structure including biological invasions. A major impediment to understanding dynamics of soil C in terrestrial systems is our inability to measure soil physical processes such as soil mixing rates or turnover of soil structures, including aggregates. Here we present a multiple radioisotope tracer approach (naturally occurring and man-made) to measure soil mixing rates in response to global change. We will present evidence of soil mixing rate changes in a temperate forest exposed to increased levels of atmospheric CO2 and in a tundra ecosystem exposed to increased thermal insulation. In both cases, radioisotope tracers proved to be an effective way to measure effects of global change on pedoturbation. Results also provided insights into the specific mechanisms involved in the responses. Elevated CO2 resulted in deeper soil mixing cells (increased by about 5cm on average) when compared to control soils as a consequence of changes in biota (increased root growth, higher earthworm density). In the tundra, soil warming induced higher rates of cryoturbation, resulting in what appears to be a net uplift of organic matter to the surface thereby exposing deeper C to decomposers. In both cases, global change factors affected the vertical distribution of C and changed the amount of bulk soil actively involved in soil processes. As a consequence, comparisons of C budgets to a given soil depth in

  7. Application of first order rate kinetics to explain changes in bloom toxicity—the importance of understanding cell toxin quotas

    Science.gov (United States)

    Orr, Philip T.; Willis, Anusuya; Burford, Michele A.

    2018-04-01

    Cyanobacteria are oxygenic photosynthetic Gram-negative bacteria that can form potentially toxic blooms in eutrophic and slow flowing aquatic ecosystems. Bloom toxicity varies spatially and temporally, but understanding the mechanisms that drive these changes remains largely a mystery. Changes in bloom toxicity may result from changes in intracellular toxin pool sizes of cyanotoxins with differing molecular toxicities, and/or from changes in the cell concentrations of toxic and non-toxic cyanobacterial species or strains within bloom populations. We show here how first-order rate kinetics at the cellular level can be used to explain how environmental conditions drive changes in bloom toxicity at the ecological level. First order rate constants can be calculated for changes in cell concentration (μ c: specific cell division rate) or the volumetric biomass concentration (μ g: specific growth rate) between short time intervals throughout the cell cycle. Similar first order rate constants can be calculated for changes in nett volumetric cyanotoxin concentration (μ tox: specific cyanotoxin production rate) over similar time intervals. How μ c (or μ g ) covaries with μ tox over the cell cycle shows conclusively when cyanotoxins are being produced and metabolised, and how the toxicity of cells change in response to environment stressors. When μ tox/μ c>1, cyanotoxin cell quotas increase and individual cells become more toxic because the nett cyanotoxin production rate is higher than the cell division rate. When μ tox/μ c=1, cell cyanotoxin quotas remains fixed because the nett cyanotoxin production rate matches the cell division rate. When μ tox/μ ccyanotoxin cell quota decreases because either the nett cyanotoxin production rate is lower than the cell division rate, or metabolic breakdown and/or secretion of cyanotoxins is occurring. These fundamental equations describe cyanotoxin metabolism dynamics at the cellular level and provide the necessary

  8. Understanding Global Change: A New Conceptual Framework To Guide Teaching About Planetary Systems And Both The Causes And Effects Of Changes In Those Systems

    Science.gov (United States)

    Levine, J.; Bean, J. R.

    2016-12-01

    Goals of the Next Generation Science Standards include understanding climate change and learning about ways to moderate the causes and mitigate the consequences of planetary-scale anthropogenic activities that interact synergistically to affect ecosystems and societies. The sheer number and scale of both causes and effects of global change can be daunting for teachers, and the lack of a clear conceptual framework for presenting this material usually leads educators (and textbooks) to present these phenomenon as a disjointed "laundry list." But an alternative approach is in the works. The Understanding Global Change web resource, currently under development at the UC Berkeley Museum of Paleontology, will provide educators with a conceptual framework, graphic models, lessons, and assessment templates for teaching NGSS-aligned, interdisciplinary, global change curricula. The core of this resource is an original informational graphic that presents and relates Earth's global systems, human and non-human factors that produce changes in those systems, and the effects of those changes that scientists can measure.

  9. Understanding Rates of Marijuana Use and Consequences Among Adolescents in a Changing Legal Landscape

    OpenAIRE

    D’Amico, Elizabeth J.; Tucker, Joan S.; Pedersen, Eric R.; Shih, Regina A.

    2017-01-01

    Purpose of Review There is not one answer to address whether marijuana use has increased, decreased, or stayed the same given changes in state legalization of medical and non-medical marijuana in the USA. Recent Findings Evidence suggests some health benefits for medical marijuana; however, initiation of marijuana use is a risk factor for developing problem cannabis use. Though use rates have remained stable over recent years, about one in three 10th graders report marijuana use, most adolesc...

  10. Cyber security in the workplace: Understanding and \\ud promoting behaviour change

    OpenAIRE

    Blythe, John

    2013-01-01

    Cyber security and the role employees play in securing information are major concerns for businesses. The aim of this research is to explore employee security behaviours and design interventions that can motivate behaviour change. Previous research has focused on exploring factors that influence information security policy compliance; however there are several limitations with this approach. Our work-to-date has explored the behaviours that constitute ‘information security’ and potential infl...

  11. Adaptation to climate change and climate variability: The importance of understanding agriculture as performance

    OpenAIRE

    Crane, T.A.; Roncoli, C.; Hoogenboom, G.

    2011-01-01

    Most climate change studies that address potential impacts and potential adaptation strategies are largely based on modelling technologies. While models are useful for visualizing potential future outcomes and evaluating options for potential adaptation, they do not adequately represent and integrate adaptive human agency. Richards’ concept of ‘agriculture as performance’ is useful in counterbalancing the modelling approach to adaptation because it highlights how adaptive processes and techno...

  12. Toward better understanding of postharvest deterioration: biochemical changes in stored cassava (Manihot esculenta Crantz) roots

    OpenAIRE

    Uarrota, Virgílio Gavicho; Nunes, Eduardo da Costa; Peruch, Luiz Augusto Martins; Neubert, Enilto de Oliveira; Coelho, Bianca; Moresco, Rodolfo; Garcia Domínguez, Moralba; Sánchez, Teresa; Luna Meléndez, Jorge Luis; Dufour, Dominique; Ceballos, Hernan; Becerra Lopez-Lavalle, Luis Augusto; Hershey, Clair; Rocha, Miguel; Maraschin, Marcelo

    2016-01-01

    Abstract Food losses can occur during production, postharvest, and processing stages in the supply chain. With the onset of worldwide food shortages, interest in reducing postharvest losses in cassava has been increasing. In this research, the main goal was to evaluate biochemical changes and identify the metabolites involved in the deterioration of cassava roots. We found that high levels of ascorbic acid (AsA), polyphenol oxidase (PPO), dry matter, and proteins are correlated with overall l...

  13. Ecosystem services and climate change: Understanding the differences and identifying opportunities for forest carbon

    Science.gov (United States)

    Robert L. Deal; Crystal Raymond; David L. Peterson; Cindy. Glick

    2010-01-01

    There are a number of misunderstandings about “ecosystem services” and “climate change” and these terms are often used incorrectly to describe different concepts. These concepts address different issues and objectives but have some important integrating themes relating to carbon and carbon sequestration. In this paper, we provide definitions and distinctions between...

  14. Climate Odyssey: Resources for Understanding Coastal Change through Art, Science, and Sail

    Science.gov (United States)

    Klos, P. Z.; Holtsnider, L.

    2017-12-01

    Climate Odyssey (climateodyssey.org) is a year-long sailing expedition and continuing collaboration aimed at using overlaps in science and visual art to communicate coastal climate change impacts and solutions. We, visual artist Lucy Holtsnider and climate scientist Zion Klos, are using our complimentary skills in art, science and communication to engage audiences both intuitively and cognitively regarding the urgency of climate change through story and visualization. Over the 2015 - 2016 academic year, we embarked on the sailing portion of Climate Odyssey, beginning in Lake Michigan, continuing along the Eastern Seaboard, and concluding in the tropics. Along the way we photographed climate change impacts and adaptation strategies, interviewed stakeholders, scientists, and artists. We are now sharing our photographs and documented encounters through a tangible artist's book, interactive digital map, blog, and series of K16 lesson plans. Each of our images added to the artist's book and digital map are linked to relevant blog entries and other external scientific resources, making the map both a piece of art and an engaging education tool for sharing the science of climate change impacts and solutions. After completing the sailing component of the project, we have now finalized our multi-media resources and are working to share these with the public via libraries, galleries, and K16 classrooms in coastal communities. At AGU, we will share with our peers the completed version of the series of K16 lesson plans that provide educators an easy-to-use way to introduce and utilize the material in the artist's book, digital map, and online blog. Through this, we hope to both discuss climate-focused education and engagement strategies, as well as showcase this example of art-science outreach with the broader science education and communication community that is focused on climate literacy in the U.S. and beyond.

  15. Understanding the gender gap: Social cognitive changes during an introductory stem course.

    Science.gov (United States)

    Hardin, Erin E; Longhurst, Melanie O

    2016-03-01

    Despite robust support for the basic theoretical model of social cognitive career theory (Lent, Brown, & Hackett, 1994) and predictions that, for example, increases (or declines) in self-efficacy would lead to subsequent increases (or declines) in interest, there has been surprisingly little longitudinal research that has directly examined the extent to which members of different groups (e.g., women and men) actually do experience changes in critical social-cognitive variables over time early in their curricula in the fields of science, technology, engineering, and mathematics (STEM). Knowing the extent to which such changes occur in typical introductory undergraduate courses is important for targeting interventions to increase persistence of underrepresented groups in STEM. We measured social-cognitive-career-theory-relevant variables near the middle and at the end of the 1st semester of a gateway introductory chemistry course and found that women had lower STEM self-efficacy, coping self-efficacy, and STEM interest than did men, even after controlling for actual course performance. Although there were no detrimental changes across the semester for women or men, men experienced a small but significant increase in their perceived support for pursuing a STEM degree, whereas women did not. (c) 2016 APA, all rights reserved).

  16. Climate change impacts on tree ranges: model intercomparison facilitates understanding and quantification of uncertainty.

    Science.gov (United States)

    Cheaib, Alissar; Badeau, Vincent; Boe, Julien; Chuine, Isabelle; Delire, Christine; Dufrêne, Eric; François, Christophe; Gritti, Emmanuel S; Legay, Myriam; Pagé, Christian; Thuiller, Wilfried; Viovy, Nicolas; Leadley, Paul

    2012-06-01

    Model-based projections of shifts in tree species range due to climate change are becoming an important decision support tool for forest management. However, poorly evaluated sources of uncertainty require more scrutiny before relying heavily on models for decision-making. We evaluated uncertainty arising from differences in model formulations of tree response to climate change based on a rigorous intercomparison of projections of tree distributions in France. We compared eight models ranging from niche-based to process-based models. On average, models project large range contractions of temperate tree species in lowlands due to climate change. There was substantial disagreement between models for temperate broadleaf deciduous tree species, but differences in the capacity of models to account for rising CO(2) impacts explained much of the disagreement. There was good quantitative agreement among models concerning the range contractions for Scots pine. For the dominant Mediterranean tree species, Holm oak, all models foresee substantial range expansion. © 2012 Blackwell Publishing Ltd/CNRS.

  17. Understanding the causes of changing grassland use and productivity in Inner Mongolia, China

    Science.gov (United States)

    Zhang, Y.; Gao, L.; Qiao, G.; Chen, J.

    2012-12-01

    Some dramatic changes of grassland use and productivity have been taking place in Inner Mongolia in the past half century. While the changes are apparently driven by both socio-economic factors and climate, their contribution and interaction are largely unknown. We hypothesize that population growth is an important driving force behind the loss and degradation of the grassland, the market forces and institutional factors such as de-collectivization are become more important factors as the economy is moving from planned economy to market economy. This paper assesses the effects of socio-economic, demographic, institutional and climate factors on grassland use and productivity using a panel data set. The panel data compose the years from 1970s to 2000s and all prefectures in Inner Mongolia. A generalized least squares estimation method, allowing individual effects for prefecture level are applied to the examination. The effect of climate change is tested as well and the coupled socio-economic system and the natural system are investigated.

  18. For a better understanding of adaptive capacity to climate change: a research framework

    International Nuclear Information System (INIS)

    Magnan, Alexandre

    2010-05-01

    It is generally accepted that there exists a systematic link between a low level of adaptive capacity and a low level of development, which thus implies that the poor inevitably have low adaptive capacities. We argue here that this viewpoint is biased because adaptation to climate change is not solely determined by economic and technological capacities. Many other characteristics of a community can play a major role in its ability to react to and anticipate climate changes (e.g. the territorial identity or the social relationships). From our point of view, this limited view of adaptive capacity is related to a relative immaturity of the science of adaptation, a discipline that analyses the processes and determinants of adaptive capacity. This can be explained by the fact that there are currently few existing frameworks for studying adaptive capacity. This paper consists in a proposal for a research framework which is based upon four main fields of investigation: (i) the influential factors of adaptive capacity and their interactions, (ii) the relevant spatial and temporal scales of adaptive capacity, (iii) the links between adaptive capacity, vulnerability and the level of development and (iv) the theoretical links between adaptation and sustainability. These four fields of research should bring new knowledge on adaptive capacity and feed a more general reflection on the adaptation pathways for dealing with climate change. (author)

  19. Understanding the varied response of the extratropical storm tracks to climate change.

    Science.gov (United States)

    O'Gorman, Paul A

    2010-11-09

    Transient eddies in the extratropical storm tracks are a primary mechanism for the transport of momentum, energy, and water in the atmosphere, and as such are a major component of the climate system. Changes in the extratropical storm tracks under global warming would impact these transports, the ocean circulation and carbon cycle, and society through changing weather patterns. I show that the southern storm track intensifies in the multimodel mean of simulations of 21st century climate change, and that the seasonal cycle of storm-track intensity increases in amplitude in both hemispheres. I use observations of the present-day seasonal cycle to confirm the relationship between storm-track intensity and the mean available potential energy of the atmosphere, and show how this quantitative relationship can be used to account for much of the varied response in storm-track intensity to global warming, including substantially different responses in simulations with different climate models. The results suggest that storm-track intensity is not related in a simple way to global-mean surface temperature, so that, for example, a stronger southern storm track in response to present-day global warming does not imply it was also stronger in hothouse climates of the past.

  20. Engineering Good: How Engineering Metaphors Help us to Understand the Moral Life and Change Society

    Science.gov (United States)

    2009-01-01

    Engineering can learn from ethics, but ethics can also learn from engineering. In this paper, I discuss what engineering metaphors can teach us about practical philosophy. Using metaphors such as calculation, performance, and open source, I articulate two opposing views of morality and politics: one that relies on images related to engineering as science and one that draws on images of engineering practice. I argue that the latter view and its metaphors provide a more adequate way to understand and guide the moral life. Responding to two problems of alienation and taking into account developments such as Fab Lab I then further explore the implications of this view for engineering and society. PMID:19722107

  1. How innovative ICT tools can enhance understanding of interactions between societal, hydrological and environmental changes

    Science.gov (United States)

    Foglia, L.; Borsi, I.; Cannata, M.; De Filippis, G.; Criollo, R.; Mehl, S.; Rossetto, R.

    2017-12-01

    The interaction of environmental, physical, and socioeconomic processes alter and are altered by water and by how human can affect water use. For example, a warming climate increases the chance of warm temperatures and lack of precipitation, and when combined with growing population requires understanding of impact on water resources and on all the processes related to the water budget including evapotranspiration. On this foundation, humans add engineered and social systems to control, manage, utilize, and alter our water environment for a variety of uses and through a variety of organizational and individual decisions. Some engineered systems have mixed consequences, for example groundwater helped sustain agriculture during drought periods, but then groundwater levels critically decrease with no chances to recover in some parts of the world. Innovative ICT tools have been demonstrated as a helpful tool for enhancing human understanding of the effect that societal, economical, and policy-based decisions have on the water resources and on the environment in general. Here we apply the new FREEWAT platform to demonstrate the importance of developing ad-hoc database and hydrological models to simulate different scenarios using a participatory approach. Stakeholders have been involved in data collection, database design and model development during the entire project period and discussion between researcher and stakeholders have been fostered during Focus Groups and workshops organized in many countries in Europe and beyond (including case studies in Ukraine and Africa). FREEWAT is an open source and public domain GIS integrated modelling environment for simulation of water quantity and quality in surface water and groundwater with an integrated water management and planning module. FREEWAT aims at promoting water resource management by simplifying the application of the Water Framework Directive and related Directives. Fourteen case studies have been considered and

  2. Conservative and revolutionary readings of the categorical imperative: The logic of desire and the logic of drive in Kant’s practical philosophy

    Directory of Open Access Journals (Sweden)

    Selimbegović Ivan

    2011-01-01

    Full Text Available This paper will confront two possible conceptions of Imamanuel Kant’s practical philosophy based on two different possible understandings of categorical imperative. The first conception sees the categorical imperative as prescribing a form for the maxime under which a subject is to act if his actions are to be taken as moral. This conception is shown to be conservative as it preserves the existing moral norms of a society. This way of functioning of categorical imperative is shown to be homologuous to the logic of desiare as described by the french psychoanalyst Jacques Lacan and as incapable of providing a basis for ascribing responsibility to a subject for his acts. Another conception will be offered as an alternative: on that conception the categorical imeprative prescribes a manner of willing any maxime which is shown to be analoguous to the logic of the death drive. It’s ethical and revolutionary character are elucidated towards the end of the paper.

  3. Evaluating the effects of ideology on public understanding of climate change science: how to improve communication across ideological divides?

    Science.gov (United States)

    Zia, Asim; Todd, Anne Marie

    2010-11-01

    While ideology can have a strong effect on citizen understanding of science, it is unclear how ideology interacts with other complicating factors, such as college education, which influence citizens' comprehension of information. We focus on public understanding of climate change science and test the hypotheses: [H1] as citizens' ideology shifts from liberal to conservative, concern for global warming decreases; [H2] citizens with college education and higher general science literacy tend to have higher concern for global warming; and [H3] college education does not increase global warming concern for conservative ideologues. We implemented a survey instrument in California's San Francisco Bay Area, and employed regression models to test the effects of ideology and other socio-demographic variables on citizen concern about global warming, terrorism, the economy, health care and poverty. We are able to confirm H1 and H3, but reject H2. Various strategies are discussed to improve the communication of climate change science across ideological divides.

  4. Changes in Pre-service Science Teachers' Understandings After Being Involved in Explicit Nature of Science and Socioscientific Argumentation Processes

    Science.gov (United States)

    Kutluca, A. Y.; Aydın, A.

    2017-08-01

    The study explored the changes in pre-service science teachers' understanding of the nature of science and their opinions about the nature of science, science teaching and argumentation after their participation in explicit nature of science (NOS) and socioscientific argumentation processes. The participants were 56 third-grade pre-service science teachers studying in a state university in Turkey. The treatment group comprised 27 participants, and there were 29 participants in the comparison group. The comparison group participants were involved in a student-centred science-teaching process, and the participants of the treatment group were involved in explicit NOS and socioscientific argumentation processes. In the study, which lasted a total of 11 weeks, a NOS-as-argumentation questionnaire was administered to all the participants to determine their understanding of NOS at the beginning and end of the data collection process, and six random participants of the treatment group participated in semi-structured interview questions in order to further understand their views regarding NOS, science teaching and argumentation. Qualitative and quantitative data analysis revealed that the explicit NOS and socioscientific argumentation processes had a significant effect on pre-service science teachers' NOS understandings. Furthermore, NOS, argumentation and science teaching views of the participants in the treatment group showed a positive change. The results of this study are discussed in light of the related literature, and suggestions are made within the context of contribution to science-teaching literature, improvement of education quality and education of pre-service teachers.

  5. Development of animal welfare understanding drives change in minimum welfare standards.

    Science.gov (United States)

    Mellor, D J; Webster, J R

    2014-04-01

    The process by which societies adapt to increasing knowledge about the mental and physical capacities of animals and the ways in which they are affected by human activities has been described as a journey. Different countries and regions are at various stages of this journey, and will take a unique path, depending on their specific social and cultural dynamics. However, all participants are unified by an increasing awareness of, and concern for, animal welfare. This journey has been characterised by a number of landmark events, one of which was the release of the Five Freedoms concept. Although aspirational and abstract, as it did not outline specific practical goals, nonetheless this concept became a catalyst for moving animal welfare thinking in a new direction, and set up a number of important targets for research. This eventually led to a key shift in thinking from a focus on biological functioning and resources, to ways of assessing welfare outcomes in terms of animals' experiences, i.e. their affective states. Behaviour science played an important role in the interpretation of animals' affective experiences, receiving compelling support from parallel studies in affective neuroscience. An important aspect of our understanding of animal welfare is that affective states can be negative or positive. Enabling animals to perform specific behaviours at key times when they are needed is central to the achievement of positive affective states. Another important event has been the development of practical ways to shift the spectrum of affective states towards a positive balance and their incorporation into welfare codes and regulations. The recent focus on positive affective states does not mean that negative experiences should be given less attention. In fact, in those countries that are at the early stages of the journey, improving function and productivity may be the most effective way to promote some important aspects of animal welfare. For example, alleviating

  6. The Effect of Conceptual Change Model in the Senior High School Students’ Understanding and Character in Learning Physics

    Directory of Open Access Journals (Sweden)

    Santyasa I Wayan

    2018-01-01

    Full Text Available Learning physics for senior high school (SMA students is often coloured by misconceptions that hinder students in achieving deep understanding. So a relevant learning model is needed. This study aims to examine the effect of conceptual change model (CCM compared with direct instruction model (DIM on the students’ conceptual understanding and character in the subject area of motion and force. This quasi-experimental research using a non-equivalence pre-test post-test control groups design. The population is 20 classes (738 students of grade X consisted of 8 classes (272 students of SMA 1 Amlapura, 8 classes (256 students of SMA 2 Amlapura, and 6 classes (210 students of SMA 1 Manggis in Karangasem regency in Bali. The random assignment technique is used to assign 6 classes (202 students, or 26.5% of the population. In each school there are set 2 classes each as a CCM group and DIM groups. The data of students’ conceptual understanding is collected by tests, while the characters by questionnaires. To analyse the data a one way MANCOVA statistics was used. The result of the analysis showed that there was a significant difference of effect between CCM group and DIM group on the students’ conceptual understanding and character. The effect of the CCM group is higher than the DIM group on the students’ conceptual understanding and character in learning subject area of motion and force.

  7. Understanding the recent trend of haze pollution in eastern China: roles of climate change

    Directory of Open Access Journals (Sweden)

    H.-J. Wang

    2016-04-01

    Full Text Available In this paper, the variation and trend of haze pollution in eastern China for winter of 1960–2012 were analyzed. With the overall increasing number of winter haze days in this period, the 5 decades were divided into three sub-periods based on the changes of winter haze days (WHD in central North China (30–40° N and eastern South China (south of 30° N for east of 109° E mainland China. Results show that WHD kept gradually increasing during 1960–1979, remained stable overall during 1980–1999, and increased fast during 2000–2012. The author identified the major climate forcing factors besides total energy consumption. Among all the possible climate factors, variability of the autumn Arctic sea ice extent, local precipitation and surface wind during winter is most influential to the haze pollution change. The joint effect of fast increase of total energy consumption, rapid decline of Arctic sea ice extent and reduced precipitation and surface winds intensified the haze pollution in central North China after 2000. There is a similar conclusion for haze pollution in eastern South China after 2000, with the precipitation effect being smaller and spatially inconsistent.

  8. Understanding changes in cellulose crystalline structure of lignocellulosic biomass during ionic liquid pretreatment by XRD.

    Science.gov (United States)

    Zhang, Jiafu; Wang, Yixun; Zhang, Liye; Zhang, Ruihong; Liu, Guangqing; Cheng, Gang

    2014-01-01

    X-ray diffraction (XRD) was used to understand the interactions of cellulose in lignocellulosic biomass with ionic liquids (ILs). The experiment was designed in such a way that the process of swelling and solubilization of crystalline cellulose in plant cell walls was followed by XRD. Three different feedstocks, switchgrass, corn stover and rice husk, were pretreated using 1-butyl-3-methylimidazolium acetate ([C4mim][OAc]) at temperatures of 50-130°C for 6h. At a 5 wt.% biomass loading, increasing pretreatment temperature led to a drop in biomass crystallinity index (CrI), which was due to swelling of crystalline cellulose. After most of the crystalline cellulose was swollen with IL molecules, a low-order structure was found in the pretreated samples. Upon further increasing temperature, cellulose II structure started to form in the pretreated biomass samples as a result of solubilization of cellulose in [C4mim][OAc] and subsequent regeneration. Copyright © 2013 Elsevier Ltd. All rights reserved.

  9. Understanding the physiology of the ageing individual: computational modelling of changes in metabolism and endurance

    Science.gov (United States)

    2016-01-01

    Ageing and lifespan are strongly affected by metabolism. The maximal possible uptake of oxygen is not only a good predictor of performance in endurance sports, but also of life expectancy. Figuratively speaking, healthy ageing is a competitive sport. Although the root cause of ageing is damage to macromolecules, it is the balance with repair processes that is decisive. Reduced or intermittent nutrition, hormones and intracellular signalling pathways that regulate metabolism have strong effects on ageing. Homeostatic regulatory processes tend to keep the environment of the cells within relatively narrow bounds. On the other hand, the body is constantly adapting to physical activity and food consumption. Spontaneous fluctuations in heart rate and other processes indicate youth and health. A (homeo)dynamic aspect of homeostasis deteriorates with age. We are now in a position to develop computational models of human metabolism and the dynamics of heart rhythm and oxygen transport that will advance our understanding of ageing. Computational modelling of the connections between dietary restriction, metabolism and protein turnover may increase insight into homeostasis of the proteins in our body. In this way, the computational reconstruction of human physiological processes, the Physiome, can help prevent frailty and age-related disease. PMID:27051508

  10. Advances in Understanding Energy Consumption Behavior and the Governance of Its Change – Outline of an Integrated Framework

    International Nuclear Information System (INIS)

    Burger, Paul; Bezençon, Valéry; Bornemann, Basil; Brosch, Tobias; Carabias-Hütter, Vicente; Farsi, Mehdi; Hille, Stefanie Lena; Moser, Corinne; Ramseier, Céline; Samuel, Robin; Sander, David; Schmidt, Stephan; Sohre, Annika; Volland, Benjamin

    2015-01-01

    Transforming today’s energy systems in industrialized countries requires a substantial reduction of the total energy consumption at the individual level. Selected instruments have been found to be effective in changing people’s behavior in single domains. However, the so far weak success story on reducing overall energy consumption indicates that our understanding of the determining factors of individual energy consumption as well as of its change is far from being conclusive. Among others, the scientific state of the art is dominated by analyzing single domains of consumption and by neglecting embodied energy. It also displays strong disciplinary splits and the literature often fails to distinguish between explaining behavior and explaining change of behavior. Moreover, there are knowledge gaps regarding the legitimacy and effectiveness of the governance of individual consumption behavior and its change. Against this backdrop, the aim of this paper is to establish an integrated interdisciplinary framework that offers a systematic basis for linking the different aspects in research on energy related consumption behavior, thus paving the way for establishing a better evidence base to inform societal actions. The framework connects the three relevant analytical aspects of the topic in question: (1) it systematically and conceptually frames the objects, i.e., the energy consumption behavior and its change (explananda); (2) it structures the factors that potentially explain the energy consumption behavior and its change (explanantia); (3) it provides a differentiated understanding of change inducing interventions in terms of governance. Based on the existing states of the art approaches from different disciplines within the social sciences, the proposed framework is supposed to guide interdisciplinary empirical research.

  11. Advances in Understanding Energy Consumption Behavior and the Governance of Its Change – Outline of an Integrated Framework

    Energy Technology Data Exchange (ETDEWEB)

    Burger, Paul, E-mail: paul.burger@unibas.ch [Sustainability Research Group, University of Basel, Basel (Switzerland); Bezençon, Valéry [Enterprise Institute, University of Neuchâtel, Neuchâtel (Switzerland); Bornemann, Basil [Sustainability Research Group, University of Basel, Basel (Switzerland); Brosch, Tobias [Department of Psychology, Swiss Center for Affective Sciences, University of Geneva, Geneva (Switzerland); Carabias-Hütter, Vicente [Institute of Sustainable Development, Zurich University of Applied Sciences, Winterthur (Switzerland); Farsi, Mehdi [Institute of Economic Research, University of Neuchâtel, Neuchâtel (Switzerland); Hille, Stefanie Lena [Institute for Economy and the Environment, University of St. Gallen, St. Gallen (Switzerland); Moser, Corinne [Institute of Sustainable Development, Zurich University of Applied Sciences, Winterthur (Switzerland); Ramseier, Céline [Center for Energy Policy and Economics, ETH Zurich, Zurich (Switzerland); Samuel, Robin [Institute of Sociology, University of Bern, Bern (Switzerland); Social Research and Methodology Group, University of Basel, Basel (Switzerland); Sander, David [Department of Psychology, Swiss Center for Affective Sciences, University of Geneva, Geneva (Switzerland); Schmidt, Stephan; Sohre, Annika [Sustainability Research Group, University of Basel, Basel (Switzerland); Volland, Benjamin [Institute of Economic Research, University of Neuchâtel, Neuchâtel (Switzerland)

    2015-06-15

    Transforming today’s energy systems in industrialized countries requires a substantial reduction of the total energy consumption at the individual level. Selected instruments have been found to be effective in changing people’s behavior in single domains. However, the so far weak success story on reducing overall energy consumption indicates that our understanding of the determining factors of individual energy consumption as well as of its change is far from being conclusive. Among others, the scientific state of the art is dominated by analyzing single domains of consumption and by neglecting embodied energy. It also displays strong disciplinary splits and the literature often fails to distinguish between explaining behavior and explaining change of behavior. Moreover, there are knowledge gaps regarding the legitimacy and effectiveness of the governance of individual consumption behavior and its change. Against this backdrop, the aim of this paper is to establish an integrated interdisciplinary framework that offers a systematic basis for linking the different aspects in research on energy related consumption behavior, thus paving the way for establishing a better evidence base to inform societal actions. The framework connects the three relevant analytical aspects of the topic in question: (1) it systematically and conceptually frames the objects, i.e., the energy consumption behavior and its change (explananda); (2) it structures the factors that potentially explain the energy consumption behavior and its change (explanantia); (3) it provides a differentiated understanding of change inducing interventions in terms of governance. Based on the existing states of the art approaches from different disciplines within the social sciences, the proposed framework is supposed to guide interdisciplinary empirical research.

  12. Understanding Rates of Marijuana Use and Consequences Among Adolescents in a Changing Legal Landscape.

    Science.gov (United States)

    D'Amico, Elizabeth J; Tucker, Joan S; Pedersen, Eric R; Shih, Regina A

    2017-01-01

    There is not one answer to address whether marijuana use has increased, decreased, or stayed the same given changes in state legalization of medical and non-medical marijuana in the USA. Evidence suggests some health benefits for medical marijuana; however, initiation of marijuana use is a risk factor for developing problem cannabis use. Though use rates have remained stable over recent years, about one in three 10th graders report marijuana use, most adolescents do not view the drug as harmful, and over 650,000 youth aged 12 to 17 struggle with cannabis use disorder. Although the health benefits of medical marijuana are becoming better understood, more research is needed. Intervention and prevention programs must better address effects of marijuana, acknowledging that while there may be some benefits medically, marijuana use can affect functioning during adolescence when the brain is still developing.

  13. Towards understanding the differences between reading on paper and screen: measuring attention changes in brain activity

    Directory of Open Access Journals (Sweden)

    Arūnas Gudinavičius

    2016-12-01

    Full Text Available Non-intrusive experimentation and measurements can be obtained from the latest neuroscience scanning techniques and technologies. Such technologies are now quite affordable and could possibly be used for the reading process research in information and communication sciences. The research experiment focuses on measuring the changes in attention while reading the text on different media (devices. The pilot experiment showed that cheap and easy to use brainwave measuring devices can be used for testing reading processes by measuring attention (concentration. The results revealed that a reading medium (device affects the level of attention and suggested that less attention is needed to read from paper compared to any size or type of screen. Reading books (in a foreign language can mostly be considered neutral on the attention level scale (slightly shifted towards 53 on a 1-100 scale.

  14. Applied behavior analysis: understanding and changing behavior in the community-a representative review.

    Science.gov (United States)

    Luyben, Paul D

    2009-01-01

    Applied behavior analysis, a psychological discipline, has been characterized as the science of behavior change (Chance, 2006). Research in applied behavior analysis has been published for approximately 40 years since the initial publication of the Journal of Applied Behavior Analysis in 1968. The field now encompasses a wide range of human behavior. Although much of the published research centers on problem behaviors that occur in schools and among people with disabilities, a substantial body of knowledge has emerged in community settings. This article provides a review of the behavioral community research published in the Journal of Applied Behavior Analysis as representative of this work, including research in the areas of home and family, health, safety, community involvement and the environment, recreation and sports, crime and delinquency, and organizations. In the interest of space, research in schools and with people with disabilities has been excluded from this review.

  15. An Ensemble Approach to Understanding the ENSO Response to Climate Change

    Science.gov (United States)

    Stevenson, S.; Capotondi, A.; Fasullo, J.; Otto-Bliesner, B. L.

    2017-12-01

    The dynamics of the El Nino/Southern Oscillation (ENSO) are known to be sensitive to changes in background climate conditions, as well as atmosphere/ocean feedbacks. However, the degree to which shifts in ENSO characteristics can be robustly attributed to external climate forcings remains unknown. Efforts to assess these changes in a multi-model framework are subject to uncertainties due to both differing model physics and internal ENSO variability. New community ensembles created at the National Center for Atmospheric Research and the NOAA Geophysical Fluid Dynamics Laboratory are ideally suited to addressing this problem, providing many realizations of the climate of the 850-2100 period with a combination of both natural and anthropogenic climate forcing factors. Here we analyze the impacts of external forcing on El Nino and La Nina evolution using four sets of simulations: the CESM Last Millennium Ensemble (CESM-LME), which covers the 850-2005 period and provides long-term context for forced responses; the Large Ensemble (CESM-LE), which includes 20th century and 21st century (RCP8.5) projections; the Medium Ensemble (CESM-ME), which is composed of 21st century RCP4.5 projections; and a large ensemble with the GFDL ESM2M, which includes 20th century and RCP8.5 projections. In the CESM, ENSO variance increases slightly over the 20th century in all ensembles, with the effects becoming much larger during the 21st. The slower increase in variance over the 20th century is shown to arise from compensating influences from greenhouse gas (GHG) and anthropogenic aerosol emissions, which give way to GHG-dominated effects by 2100. However, the 21st century variance increase is not robust: CESM and the ESM2M differ drastically in their ENSO projections. The mechanisms for these inter-model differences are discussed, as are the implications for the design of future multi-model ENSO projection experiments.

  16. Ethics, Collaboration, and Presentation Methods for Local and Traditional Knowledge for Understanding Arctic Change

    Science.gov (United States)

    Parsons, M. A.; Gearheard, S.; McNeave, C.

    2009-12-01

    Local and traditional knowledge (LTK) provides rich information about the Arctic environment at spatial and temporal scales that scientific knowledge often does not have access to (e.g. localized observations of fine-scale ecological change potentially from many different communities, or local sea ice and conditions prior to 1950s ice charts and 1970s satellite records). Community-based observations and monitoring are an opportunity for Arctic residents to provide ‘frontline’ observations and measurements that are an early warning system for Arctic change. The Exchange for Local Observations and Knowledge of the Arctic (ELOKA) was established in response to the growing number of community-based and community-oriented research and observation projects in the Arctic. ELOKA provides data management and user support to facilitate the collection, preservation, exchange, and use of local observations and knowledge. Managing these data presents unique ethical challenges in terms of appropriate use of rare human knowledge and ensuring that knowledge is not lost from the local communities and not exploited in ways antithetical to community culture and desires. Local Arctic residents must be engaged as true collaborative partners while respecting their perspectives, which may vary substantially from a western science perspective. At the same time, we seek to derive scientific meaning from the local knowledge that can be used in conjunction with quantitative science data. This creates new challenges in terms of data presentation, knowledge representations, and basic issues of metadata. This presentation reviews these challenges, some initial approaches to addressing them, and overall lessons learned and future directions.

  17. Temporal Immediacy: A Two-System Theory of Mind for Understanding and Changing Health Behaviors.

    Science.gov (United States)

    Cook, Paul F; Schmiege, Sarah J; Reeder, Blaine; Horton-Deutsch, Sara; Lowe, Nancy K; Meek, Paula

    Health promotion and chronic disease management both require behavior change, but people find it hard to change behavior despite having good intentions. The problem arises because patients' narratives about experiences and intentions are filtered through memory and language. These narratives inaccurately reflect intuitive decision-making or actual behaviors. We propose a principle-temporal immediacy-as a moderator variable that explains which of two mental systems (narrative or intuitive) will be activated in any given situation. We reviewed multiple scientific areas to test temporal immediacy as an explanation for findings. In an iterative process, we used evidence from philosophy, cognitive neuroscience, behavioral economics, symptom science, and ecological momentary assessment to develop our theoretical perspective. These perspectives each suggest two cognitive systems that differ in their level of temporal immediacy: an intuitive system that produces behavior in response to everyday states and a narrative system that interprets and explains these experiences after the fact. Writers from Plato onward describe two competing influences on behavior-often with moral overtones. People tend to identify with the language-based narrative system and blame unhelpful results on the less accessible intuitive system, but neither is completely rational, and the intuitive system has strengths based on speed and serial processing. The systems differ based on temporal immediacy-the description of an experience as either "now" or "usually"-with the intuitive system generating behaviors automatically in real time and the narrative system producing beliefs about the past or future. The principle of temporal immediacy is a tool to integrate nursing science with other disciplinary traditions and to improve research and practice. Interventions should build on each system's strengths, rather than treating the intuitive system as a barrier for the narrative system to overcome. Nursing

  18. The USA National Phenology Network: A national science and monitoring program for understanding climate change

    Science.gov (United States)

    Weltzin, J.

    2009-04-01

    Patterns of phenology for plants and animals control ecosystem processes, determine land surface properties, control biosphere-atmosphere interactions, and affect food production, health, conservation, and recreation. Although phenological data and models have applications related to scientific research, education and outreach, agriculture, tourism and recreation, human health, and natural resource conservation and management, until recently there was no coordinated effort to understand phenology at the national scale in the United States. The USA National Phenology Network (USA-NPN; www.usanpn.org), established in 2007, is an emerging and exciting partnership between federal agencies, the academic community, and the general public to establish a national science and monitoring initiative focused on phenology. The first year of operation of USA-NPN produced many new phenology products and venues for phenology research and citizen involvement. Products include a new web-site (www.usanpn.org) that went live in June 2008; the web-site includes a tool for on-line data entry, and serves as a clearinghouse for products and information to facilitate research and communication related to phenology. The new core Plant Phenology Program includes profiles for 200 vetted local, regional, and national plant species with descriptions and (BBCH-consistent) monitoring protocols, as well as templates for addition of new species. A partnership program describes how other monitoring networks can engage with USA-NPN to collect, manage or disseminate phenological information for science, health, education, management or predictive service applications. Project BudBurst, a USA-NPN field campaign for citizen scientists, went live in February 2008, and now includes over 3000 registered observers monitoring 4000 plants across the nation. For 2009 and beyond, we will initiate a new Wildlife Phenology Program, create an on-line clearing-house for phenology education and outreach, strengthen

  19. Connecting the records: exploiting tephra deposits to help understand abrupt climate change

    Science.gov (United States)

    Davies, S. M.; Abbott, P. M.; Bourne, A. J.; Chapman, M.; Pearce, N. J. G.; Griggs, A. J.; Cook, E.

    2016-12-01

    The causal mechanism of abrupt climate change during the last glacial period remains a key challenge. Although these events are well-documented in a wide range of proxy records, the triggers and drivers remain poorly understood, largely due to the dating uncertainties that prevent the integration of different archives. Unravelling the lead/lag responses (hence cause and effect) between the Earth's climate components is limited by the challenges of synchronising palaeoclimate records on a common timescale. Here we present the potential and the challenges of optimising the use of cryptotephra deposits to precisely correlate the Greenland ice-cores with North Atlantic marine records. A series of new cryptotephra deposits have been identified in Greenland, increasing the scope of identifying coeval isochrons in the marine environment. This new framework, however, brings new challenges in the search for unique and robust geochemical fingerprints for unequivocal tephra correlations. As such, some tephra deposits are proposed to be more valuable than others and underpin key snapshots in time during the last glacial period. The North Atlantic Ash Zone II, for instance, represents the most widespread isochron and constrains the cooling of GI-15. Some tephra deposits in the ice-core record originate from ultra-distal sources beyond the North Atlantic region and we also explore the potential for establishing North Pacific linkages.

  20. Understanding the impact of climate change on Northern Hemisphere extra-tropical cyclones

    Energy Technology Data Exchange (ETDEWEB)

    McDonald, Ruth E. [Met Office Hadley Centre, Exeter (United Kingdom)

    2011-10-15

    Extra-tropical cyclones strongly influence weather and climate in mid-latitudes and any future changes may have large impacts on the local scale. In this study Northern Hemisphere storms are analysed in ensembles of time-slice experiments carried out with an atmosphere only model with present day and future anthropogenic emissions. The present day experiment is forced by observed sea-surface temperature and sea-ice. The sea-surface temperatures and sea-ice for the future experiment are derived by adding anomalies, from parallel but lower resolution coupled model experiments, to the observed data. The storms in the present day simulation compare fairly well with observations in all seasons but some errors remain. In the future simulations there is some evidence of a poleward shift in the storm tracks in some seasons and regions. There are fewer cyclones in the Northern Hemisphere in winter and spring. The northeast end of the North Atlantic storm track is shifted south in winter giving more storms and increased frequency of strong winds over the British Isles. This shift is related to an increase in baroclinicity and a southward shift of the jet that occurs as a response to a minimum in ocean warming in the central North Atlantic. An increase in the frequency of storms over the UK is likely to cause enhanced levels of wind and flood damage. These results concur with those from some other models, however, large uncertainties remain. (orig.)

  1. Polar Microalgae: New Approaches towards Understanding Adaptations to an Extreme and Changing Environment

    Directory of Open Access Journals (Sweden)

    Barbara R. Lyon

    2014-01-01

    Full Text Available Polar Regions are unique and highly prolific ecosystems characterized by extreme environmental gradients. Photosynthetic autotrophs, the base of the food web, have had to adapt physiological mechanisms to maintain growth, reproduction and metabolic activity despite environmental conditions that would shut-down cellular processes in most organisms. High latitudes are characterized by temperatures below the freezing point, complete darkness in winter and continuous light and high UV in the summer. Additionally, sea-ice, an ecological niche exploited by microbes during the long winter seasons when the ocean and land freezes over, is characterized by large salinity fluctuations, limited gas exchange, and highly oxic conditions. The last decade has been an exciting period of insights into the molecular mechanisms behind adaptation of microalgae to the cryosphere facilitated by the advancement of new scientific tools, particularly “omics” techniques. We review recent insights derived from genomics, transcriptomics, and proteomics studies. Genes, proteins and pathways identified from these highly adaptable polar microbes have far-reaching biotechnological applications. Furthermore, they may provide insights into life outside this planet, as well as glimpses into the past. High latitude regions also have disproportionately large inputs into global biogeochemical cycles and are the region most sensitive to climate change.

  2. Understanding the new US climate change strategy - The Waxman-Markey bill at a glance

    International Nuclear Information System (INIS)

    Marchal, V.; Galharret, S.

    2009-01-01

    The climate change agenda is one of the two top priorities of Obama's administration, along with the reform of the health system. On June 26, 2009, the House of Representatives passed, by a margin of 219 to 212, the American Clean Energy and Security Act of 2009 (ACES), authored by Henry Waxman (from California) and Edward Markey (from Massachusetts). The bill is a comprehensive energy legislation that presents a cap and trade scheme regulating US Green House Gas (GHG) emissions, and a set of federal measures that aims at transforming the US traditional fossil fuel-based economy into a cleaner economy, based on renewable energy and low carbon alternatives. If passed by the Senate, the bill would intent to reduce US GHG emissions by 17% in 2020 and 80% in 2050 under 2005 levels, along with a 2 degrees / 450 ppm GHG concentration global objective. This brief provides an overview of the 1,428-page bill mechanisms and its implications at the national and international levels. It highlights the key uncertainties surrounding its institutional adoption and operational implementation. It also emphasizes its main differences with the European approach on cap and trade, the EU Emission Trading Scheme (EU ETS), as well as examines its international implications on carbon markets and negotiations. (authors)

  3. Understanding of electrochemical and structural changes of polypyrrole/polyethylene glycol composite films in aqueous solution

    International Nuclear Information System (INIS)

    Pirvu, Cristian; Manole, Claudiu Constantin; Stoian, Andrei Bogdan; Demetrescu, Ioana

    2011-01-01

    Highlights: → Electrochemical monitoring of PPy and PPy-PEG films over immersion time. → Electrochemical and surface analysis showed that PEG improves the stability of PPy films. → Mott-Schottky analysis reveals p-type conductance for both films. → In situ AFM analysis sustains electrochemical behaviour. → A model of PPy and PPy-PEG films behaviour during immersion was elaborated. - Abstract: Electrochemical monitoring of electrical and structural changes of both PPy and PPy-PEG films electrochemical deposited, in order to highlight if the structural stability offered by PEG has an influence on electrical properties and stability in aqueous solution over immersion time was investigated. Electrochemical analysis suggests that PPy-PEG film inserts cations easier than PPy film for a short immersion time probably due to ability of PEG to form complexes with metal cations. The FTIR spectra showed that the PEG incorporation decreases the rate of PPy overoxidation probably by restraining the electron release and by rendering O 2 inaccessible to PPy. Mott-Schottky analysis based on capacitance measurement reveal p-type conductance for both films. The in situ AFM analysis sustains electrochemical behaviour and has permitted elaboration of a model of PPy and PPy-PEG films behaviour during immersion in testing solution.

  4. Understanding of electrochemical and structural changes of polypyrrole/polyethylene glycol composite films in aqueous solution

    Energy Technology Data Exchange (ETDEWEB)

    Pirvu, Cristian, E-mail: c_pirvu@chim.pub.ro [University Polytechnic of Bucharest, Faculty of Applied Chemistry and Materials Science, 1-7 Polizu, 011061 Bucharest (Romania); Manole, Claudiu Constantin; Stoian, Andrei Bogdan; Demetrescu, Ioana [University Polytechnic of Bucharest, Faculty of Applied Chemistry and Materials Science, 1-7 Polizu, 011061 Bucharest (Romania)

    2011-11-30

    Highlights: > Electrochemical monitoring of PPy and PPy-PEG films over immersion time. > Electrochemical and surface analysis showed that PEG improves the stability of PPy films. > Mott-Schottky analysis reveals p-type conductance for both films. > In situ AFM analysis sustains electrochemical behaviour. > A model of PPy and PPy-PEG films behaviour during immersion was elaborated. - Abstract: Electrochemical monitoring of electrical and structural changes of both PPy and PPy-PEG films electrochemical deposited, in order to highlight if the structural stability offered by PEG has an influence on electrical properties and stability in aqueous solution over immersion time was investigated. Electrochemical analysis suggests that PPy-PEG film inserts cations easier than PPy film for a short immersion time probably due to ability of PEG to form complexes with metal cations. The FTIR spectra showed that the PEG incorporation decreases the rate of PPy overoxidation probably by restraining the electron release and by rendering O{sub 2} inaccessible to PPy. Mott-Schottky analysis based on capacitance measurement reveal p-type conductance for both films. The in situ AFM analysis sustains electrochemical behaviour and has permitted elaboration of a model of PPy and PPy-PEG films behaviour during immersion in testing solution.

  5. Total thyroidectomy: a clue to understanding the metabolic changes induced by subclinical hyperthyroidism?

    Science.gov (United States)

    Bel Lassen, Pierre; Kyrilli, Aglaia; Lytrivi, Maria; Ruiz Patino, Maria; Corvilain, Bernard

    2017-02-01

    The effects of endogenous subclinical hyperthyroidism (eSCH) on heart and bone have been well documented. There are only limited data available regarding the impact of eSCH on weight regulation and lipid metabolism. Our aim was to evaluate the changes in body weight and metabolic parameters after total thyroidectomy in patients with pre-operative eSCH compared with pre-operative patients with euthyroid (EUT). A retrospective study of 505 patients who underwent total thyroidectomy for benign multinodular goitre in an academic hospital in Brussels (Belgium) was performed. Two hundred and 25 patients were included (eSCH group: n = 74; EUT group: n = 151). The mean follow-up time was 26·1 ± 0·8 months and was similar in both groups. Absolute BMI gain was significantly greater in the eSCH group than in the EUT group (1·11 ± 0·17 vs 0·33 ± 0·13 kg/m 2 ; P = 0·003). A significant increase in LDL cholesterol was observed in the eSCH group (16·1 ± 3·8 mg/dl; P effect of eSCH on body weight regulation and lipid metabolism. © 2016 John Wiley & Sons Ltd.

  6. A wireless partially glaciated watershed in a virtual globe: Integrating data, models, and visualization to increase climate change understanding

    Science.gov (United States)

    Jones, J.; Hood, E.; Fatland, D. R.; Berner, L.; Heavner, M.; Connor, C.; O'Brien, W.

    2008-12-01

    SEAMONSTER, a NASA funded sensor web project, is the SouthEast Alaska MOnitoring Network for Science, Telecommunications, Education and Research. SEAMONSTER is operating in the partially glaciated Mendenhall and Lemon Creek Watersheds, in the Juneau area, on the margins of the Juneau Icefield. These watersheds are studied for both 1. long term monitoring of changes, and 2. detection and analysis of transient events (such as glacier lake outburst floods). The diverse sensors (meteorological, dual frequency GPS, water quality, lake level, etc), power and bandwidth constraints, and competing time scales of interest require autonomous reactivity of the sensor web. The sensors are deployed throughout two partially glaciated watersheds and facilitated data acquisition in temperate rain forest, alpine, lacustrine, and glacial environments. Understanding these environments is important for public understanding of climate change. These environments are geographically isolated, limiting public access to, and understanding of, such locales. In an effort to inform the general public and primary educators about the basic processes occurring in these unique natural systems, we have developed an interactive website. This web portal supplements and enhances environmental science primary education by providing educators and students with interactive access to basic information from the glaciological, hydrological, and meteorological systems we are studying. In addition, we have developed an interactive virtual tour of the Lemon Glacier and its watershed. The focus of this presentation is using the data gathered by the SEAMONSTER sensor web, coupled with a temperature-indexed glacial melt model, to educate students and the public on topics ranging from modeling responses due to environmental changes to glacial hydrology. The interactive SEAMONSTER web site is the primary source for visualizing the data, while Google Earth can be used to visualize the isolated Lemon Creek watershed

  7. Understanding persuasion contexts in health gamification: A systematic analysis of gamified health behavior change support systems literature.

    Science.gov (United States)

    Alahäivälä, Tuomas; Oinas-Kukkonen, Harri

    2016-12-01

    Gamification is increasingly used as a design strategy when developing behavior change support systems in the healthcare domain. It is commonly agreed that understanding the contextual factors is critical for successful gamification, but systematic analyses of the persuasive contexts have been lacking so far within gamified health intervention studies. Through a persuasion context analysis of the gamified health behavior change support systems (hBCSSs) literature, we inspect how the contextual factors have been addressed in the prior gamified health BCSS studies. The implications of this study are to provide the practitioners and researchers examples of how to conduct a systematic analysis to help guide the design and research on gamified health BCSSs. The ideas derived from the analysis of the included studies will help identify potential pitfalls and shortcomings in both the research and implementations of gamified health behavior change support systems. We systematically analyzed the persuasion contexts of 15 gamified health intervention studies. According to our results, gamified hBCSSs are implemented under different facets of lifestyle change and treatments compliance, and use a multitude of technologies and methods. We present a set of ideas and concepts to help improve endeavors in studying gamified health intervention through comprehensive understanding of the persuasive contextual factors. Future research on gamified hBCSSs should systematically compare the different combinations of contextual factors, related theories, chosen gamification strategies, and the study of outcomes to help understand how to achieve the most efficient use of gamification on the different aspects of healthcare. Analyzing the persuasion context is essential to achieve this. With the attained knowledge, those planning health interventions can choose the 'tried-and-tested' approaches for each particular situation, rather than develop solutions in an ad-hoc manner. Copyright © 2016

  8. iRESM INITIATIVE UNDERSTANDING DECISION SUPPORT NEEDS FOR CLIMATE CHANGE MITIGATION AND ADAPTATION --US Midwest Region—

    Energy Technology Data Exchange (ETDEWEB)

    Rice, Jennie S.; Runci, Paul J.; Moss, Richard H.; Anderson, Kate L.

    2010-10-01

    The impacts of climate change are already affecting human and environmental systems worldwide, yet many uncertainties persist in the prediction of future climate changes and impacts due to limitations in scientific understanding of relevant causal factors. In particular, there is mounting urgency to efforts to improve models of human and environmental systems at the regional scale, and to integrate climate, ecosystem and energy-economic models to support policy, investment, and risk management decisions related to climate change mitigation (i.e., reducing greenhouse gas emissions) and adaptation (i.e., responding to climate change impacts). The Pacific Northwest National Laboratory (PNNL) is developing a modeling framework, the integrated Regional Earth System Model (iRESM), to address regional human-environmental system interactions in response to climate change and the uncertainties therein. The framework will consist of a suite of integrated models representing regional climate change, regional climate policy, and the regional economy, with a focus on simulating the mitigation and adaptation decisions made over time in the energy, transportation, agriculture, and natural resource management sectors.

  9. Sensor Webs and Virtual Globes: Enabling Understanding of Changes in a partially Glaciated Watershed

    Science.gov (United States)

    Heavner, M.; Fatland, D. R.; Habermann, M.; Berner, L.; Hood, E.; Connor, C.; Galbraith, J.; Knuth, E.; O'Brien, W.

    2008-12-01

    The University of Alaska Southeast is currently implementing a sensor web identified as the SouthEast Alaska MOnitoring Network for Science, Telecommunications, Education, and Research (SEAMONSTER). SEAMONSTER is operating in the partially glaciated Mendenhall and Lemon Creek Watersheds, in the Juneau area, on the margins of the Juneau Icefield. These watersheds are studied for both 1. long term monitoring of changes, and 2. detection and analysis of transient events (such as glacier lake outburst floods). The heterogeneous sensors (meteorologic, dual frequency GPS, water quality, lake level, etc), power and bandwidth constraints, and competing time scales of interest require autonomous reactivity of the sensor web. They also present challenges for operational management of the sensor web. The harsh conditions on the glaciers provide additional operating constraints. The tight integration of the sensor web and virtual global enabling technology enhance the project in multiple ways. We are utilizing virtual globe infrastructures to enhance both sensor web management and data access. SEAMONSTER utilizes virtual globes for education and public outreach, sensor web management, data dissemination, and enabling collaboration. Using a PosgreSQL with GIS extensions database coupled to the Open Geospatial Consortium (OGC) Geoserver, we generate near-real-time auto-updating geobrowser files of the data in multiple OGC standard formats (e.g KML, WCS). Additionally, embedding wiki pages in this database allows the development of a geospatially aware wiki describing the projects for better public outreach and education. In this presentation we will describe how we have implemented these technologies to date, the lessons learned, and our efforts towards greater OGC standard implementation. A major focus will be on demonstrating how geobrowsers and virtual globes have made this project possible.

  10. Understanding industrial energy use: Physical energy intensity changes in Indian manufacturing sector

    International Nuclear Information System (INIS)

    Sudhakara Reddy, B.; Kumar Ray, Binay

    2011-01-01

    This study develops and examines physical energy intensity indicators in five industrial sub-sectors-iron and steel, aluminum, textiles, paper, and cement-and investigates mitigation options for energy related CO 2 emissions (during 1991-2005). Decomposition analysis has been employed to separate the structural effect (share of different products in the sector) from pure intensity effect (efficiency increase through technical improvement) for each industry. The results show that the combined effect (considering both structural and intensity effects together) on both iron and steel and paper and pulp industries is negative while it is positive for aluminum and textiles. The intensity effect for all the industries, barring textiles, is negative showing improvement in energy efficiency; iron and steel in particular, has seen a decrease of 134 PJ in energy consumption owing to improvements in efficiency. However, energy intensity in textiles has risen by 47 PJ due to increased mechanization. Structural effect is positive in aluminum and iron and steel industries indicating a movement towards higher energy-intensive products. In the case of aluminum, positive structural effect dominates over negative intensive effect whereas negative intensive effect dominates iron and steel industry. The paper helps in designing policies for improving productivity and reduce energy consumption in India's manufacturing sector. - Highlights: → The study develops physical energy intensity indicators in industrial sub-sectors of India. → It identifies technological and other options for reduction in energy consumption. → The study quantifies savings in energy as well as CO 2 emissions. → The indicators are useful in examining structural changes.

  11. Adrian Marino and the intellectual travel journal as an expression of revolutionary freedom

    Directory of Open Access Journals (Sweden)

    Rodica FRENŢIU

    2011-01-01

    Full Text Available Seen as a logical continuation of the author’s preoccupations for comparative literature, the travel journal becomes a journal of ideas in Adrian Marino’s case, by trying not only to explain the formation of a certain type of personality, but also to transcribe/redact a chronicle of social and political history. Adrian Marino’s journal of ideas firstly emphasizes an „individual” reality, but also bears deeper „universal” signification, as it militates for humanism and liberal democracy, for actual convergence of world cultures. The present study (Adrian Marino and the intellectual travel journal as an expression of revolutionary freedom proposes an investigation attempting to prove that Adrian Marino eventually suggests a personal dialogue with the world and especially with Europe, audaciously trying to concur at substantiating a modern Romanian conscience.

  12. Devereux Jarratt’s spiritual search: an example of autobiography in colonial and revolutionary Virginia

    Directory of Open Access Journals (Sweden)

    Vostrikov Pavel Vyacheslavovich

    2017-12-01

    Full Text Available This article is about the life story of Devereux Jarratt (1733-1801, an Anglican clergyman from colonial and revolutionary Virginia. His autobiography reflects the colonists’ views on many features of social and cultural life. The progress of his life was quite unusual for that period as he was able to overcome social barriers separating simple yeomen from the ruling elite, and he became a man of book culture. Jarratt was an enthusiastic preacher in the times of Great Awakening (1740-1790, a protestant of revival movement; in his writings he preserved memories of many important events and tendencies in the state of Anglican Church as well as activities of Presbyterians, Baptists and Methodists.

  13. Jules Verne's Captain Nemo and French Revolutionary Gustave Flourens:A Hidden Character Model?

    Directory of Open Access Journals (Sweden)

    Leonidas Kallivretakis

    2005-01-01

    Full Text Available This article treats the recent assumption made by Vernian specialist William Butcher that Jules Verne's most famous character, Captain Nemo, is based on the French revolutionary intellectual Gustave Flourens (1838-1871, son of the eminent physiologist J. P. M. Flourens. Gustave Flourens fought in the Cretan insurrection of 1866-1868, later participated in the republican opposition against Napoleon III's imperial regime, eventually became a friend of Karl Marx and was finally killed as a general of the Paris Commune. By comparing step-by-step Verne's inspiration and writing procedures with Flourens' unfolding activities and fame, it is concluded that there is little basis for such an assumption. The article includes also a brief account of the Cretan question in the nineteenth century and of the deep discord between Marx's and Flourens' respective analyses of the Eastern Question.

  14. For a Critique of Transatlantic Mestiza Territoriality: Challenging the Angolan-Cuban Revolutionary Community

    Directory of Open Access Journals (Sweden)

    Magdalena López

    2017-11-01

    Full Text Available This essay presents the transatlantic confluence of two hegemonic cultural traditions; the ideology of mestizaje and lusotropicalismo in the discourses of the Angolan and Cuban socialist regimes. The shared political utopia during the Angolan Civil War envisioned a South-South community, racially homogeneous. In the last part of the essay I review the works Dulces guerreros cubanos (1999 by Norberto Fuentes, Desconfiemos de los amaneceres apacibles (2011 by Emilio Comas Paret, Geração da Utopía (1992 by Pepetela, and Estação das Chuvas (1996 by José Eduardo Agualusa, in order to demonstrate socio-racial conflicts embedded in the leftist armed struggle. These narratives challenge the homogeneity of official discourses about identity that sustained the transatlantic mestiza territoriality. In doing so, they note a historical continuity of inequality and authoritarianism between colonial and postcolonial, between pre-national and revolutionary nation.

  15. The Galileo Probe: How it Has Changed Our Understanding of Jupiter

    Science.gov (United States)

    Young, Richard E.

    2003-01-01

    The Galileo Mission to Jupiter, which arrived in December of 1995, provided the first study by an orbiter, and the first in-situ sampling via an entry probe, of an outer planet atmosphere. The rationale for an entry probe is that, even from an orbiter, remote sensing of the jovian atmosphere could not adequately retrieve the information desired. This paper provides a current summary of the most significant aspects of the data returned from the Galileo entry probe. As a result of the probe measurements, there has been a reassessment of our understanding of outer planet formation and evolution of the solar system. The primary scientific objective of the Galileo probe was to determine the composition of the jovian atmosphere, which from remote sensing remained either very uncertain, or completely unknown, with respect to several key elements. The probe found that the global He mass fraction is. significantly above the value reported from the Voyager Jupiter flybys but is slightly below the protosolar value, implying that there has been some settling of He to the deep jovian interior. The probe He measurements have also led to a reevaluation of the Voyager He mass fraction for Saturn, which is now determined to be much closer to that of Jupiter. The elements C, N, S, Ar, Kr, Xe were all found to have global abundances approximately 3 times their respective solar abundances. This result has raised a number of fundamental issues with regard to properties of planetesimals and the solar nebula at the time of giant planet formation. Ne, on the other hand, was found to be highly depleted, probably as the result of it being carried along with helium as helium settles towards the deep interior. The global abundance of O was not obtained by the probe because of the influence of local processes at the probe entry site (PES), processes which depleted condensible species, in this case H2O, well below condensation levels. Other condensible species, namely NH3 and H2S, were

  16. Turar Ryskulov: the Career of a Kazakh Revolutionary Leader during the Construction of the New Soviet State, 1917-1926

    Directory of Open Access Journals (Sweden)

    Xavier Hallez

    2014-12-01

    Full Text Available Turar Ryskulov: the Career of a Kazakh Revolutionary Leader during the Construction of the New Soviet State, 1917-1926 This article is about the biography of a young Kazakh born in the last decade of the 19th century, Turar Ryskulov (1894-1938, who was an essential actor of the revolutionary period in Russian Turkestan. The approach of this brief biography will follow the line of a definition of the national and the nation. The postulate is that the identity is tackled through a political understanding and that it is chosen among multiple pre-existing or invented designations. National identity is a moving construction, favoring one of the possible designations depending on the needs of a group in the struggle for power. Ryskulov began his political activity with the idea of a common Kirghiz interest, then went through the Muslim and Turkic designations. Finally, he had to submit to a soviet Kazakh one. Against the Russian colonial heritage, Ryskulov’s political project was to offer a real place for his Turkestani compatriot in the new soviet regime. He thought it through a unified Turkestan beyond Kazakh, Uzbek, Turkmen or Tajik designations. Turar Ryskulov: kariera kazachskiego przywódcy rewolucyjnego w epoce tworzenia nowego państwa radzieckiego, 1917-1926 Artykuł dotyczy biografii młodego Kazacha urodzonego w ostatniej dekadzie XIX wieku, Turara Ryskulova (1894-1938; Ryskulov był kluczowym aktorem okresu rewolucyjnego w radzieckim Turkiestanie. Jego krótka biografia będzie się koncentrować wokół definicji narodu oraz tożsamości narodowej. W myśl przesłanki wyjściowej tożsamość kształtuje się zgodnie z interpretacją polityczną i jest wynikiem wyboru spośród wielu uprzednich lub wymyślonych kategorii. Tożsamość narodowa to konstrukcja płynna, skłaniająca się do jednej pośród możliwych kategorii w zależności od potrzeb grupy walczącej o władzę. Ryskulov w początkach kariery politycznej głosił ide

  17. Women on the Edge of Time: Representations of revolutionary motherhood in the NEP-era Soviet Union

    Directory of Open Access Journals (Sweden)

    Hannah Proctor

    2015-01-01

    Full Text Available Following the October revolution of 1917 the fledgling Soviet government legalized divorce and abortion, secularized marriage, and decriminalized homosexuality. Utopians dreamed of the withering away of the family and the transformation of women's roles in the home and the workplace. But at least for the time being, only some bodies were capable of bearing children. Women's bodies became contested territory, a site of paradox. On the one hand the image of woman was re-imagined as a de-libidinalized fellow comrade, but this was combined with a continued emphasis on women's biological role as the privileged carriers of the future generation. Rather than circumventing this seeming contradiction, Soviet artworks of the 1920s confronted it, depicting motherhood as an emancipatory and revolutionary act. And this crucially does not only relate to bodies but to emotions. Revolutionary maternal love has a positive, affective dimension that provides an alternative to sexual love. The figure of the revolutionary mother prefigures the still hazily defined qualitative richness of the communist future. This article examines the figure of the revolutionary mother through a discussion of key artworks from the NEP era (1921-1928 concluding by considering how the representation of motherhood shifted in the Stalin era. The article asks what these historical ideas might still teach us today.

  18. Bringing radical behaviorism to revolutionary Brazil and back: Fred Keller's Personalized System of Instruction and Cold War engineering education.

    Science.gov (United States)

    Akera, Atsushi

    2017-09-01

    This article traces the shifting epistemic commitments of Fred S. Keller and his behaviorist colleagues during their application of Skinnerian radical behaviorism to higher education pedagogy. Building on prior work by Alexandra Rutherford and her focus on the successive adaptation of Skinnerian behaviorism during its successive applications, this study utilizes sociologist of science Karin Knorr Cetina's concept of epistemic cultures to more precisely trace the changes in the epistemic commitments of a group of radical behaviorists as they shifted their focus to applied behavioral analysis. The story revolves around a self-paced system of instruction known as the Personalized System of Instruction, or PSI, which utilized behaviorist principles to accelerate learning within the classroom. Unlike Skinner's entry into education, and his focus on educational technologies, Keller developed a mastery-based approach to instruction that utilized generalized reinforcers to cultivate higher-order learning behaviors. As it happens, the story also unfolds across a rather fantastic political terrain: PSI originated in the context of Brazilian revolutionary history, but circulated widely in the U.S. amidst Cold War concerns about an engineering manpower(sic) crisis. This study also presents us with an opportunity to test Knorr Cetina's conjecture about the possible use of a focus on epistemic cultures in addressing a classic problem in the sociology of science, namely unpacking the relationship between knowledge and its social context. Ultimately, however, this study complements another historical case study in applied behavioral analysis, where a difference in outcome helps to lay out the range of possible shifts in the epistemic commitments of radical behaviorists who entered different domains of application. The case study also has some practical implications for those creating distance learning environments today, which are briefly explored in the conclusion. © 2017 Wiley

  19. Carbon-Water-Nitrogen relationships between lichens and the atmosphere: Tools to understand metabolism and ecosystem change

    Directory of Open Access Journals (Sweden)

    Cristina Máguas

    2013-04-01

    Full Text Available Due to the close linking between the biosphere and atmosphere, there are clear impacts of changes in climate, atmospheric deposition of nutrients/pollutants and land use (Global Changes on the terrestrial biosphere. Lichens, with a direct dependence on atmospheric conditions, are much more affected by their immediate microclimate than by the ecosystem’s prevailing macroclimate. In contrast to higher plants, poikilohydric organisms have different mechanisms of water and CO2 exchange. The application of stable isotopes to the understanding of the mechanisms that are fundamental to lichen gas exchange and water uptake is a promising tool for the evaluation of lichen response to environmental changes. Indeed, lichens have been shown to be influenced by a large number of natural and anthropogenic environmental factors, serving as ecological indicators. Thus, we may use these organisms to model the impact of key global change drivers, such as nitrogen deposition and biodiversity changes, at local scale. Particularly useful is the application of the Lichen Diversity Value (LDV in order to evaluate the impact of global drivers. Moreover, it has been shown that these indices, associated with main photobiont types, green-algae (LDVch or cyanobacteria (LDVcyh, and/or nitrophilous versus oligotrophic species, were good candidates as ecological indicators. Besides mapping with high spatial resolution the effects of climate alterations, lichen functional groups could also be used as an early-warning system in order to detect the first effects of climate change in ecosystems before sudden shifts occur on other components that may be less sensitive. Clearly, lichens possess the adequate traits to be used as powerful indicators of complex interactions between atmosphere and biosphere, and thus can generate potentially interesting models for global change drivers.

  20. Predicting plant diversity patterns in Madagascar: understanding the effects of climate and land cover change in a biodiversity hotspot.

    Directory of Open Access Journals (Sweden)

    Kerry A Brown

    Full Text Available Climate and land cover change are driving a major reorganization of terrestrial biotic communities in tropical ecosystems. In an effort to understand how biodiversity patterns in the tropics will respond to individual and combined effects of these two drivers of environmental change, we use species distribution models (SDMs calibrated for recent climate and land cover variables and projected to future scenarios to predict changes in diversity patterns in Madagascar. We collected occurrence records for 828 plant genera and 2186 plant species. We developed three scenarios, (i.e., climate only, land cover only and combined climate-land cover based on recent and future climate and land cover variables. We used this modelling framework to investigate how the impacts of changes to climate and land cover influenced biodiversity across ecoregions and elevation bands. There were large-scale climate- and land cover-driven changes in plant biodiversity across Madagascar, including both losses and gains in diversity. The sharpest declines in biodiversity were projected for the eastern escarpment and high elevation ecosystems. Sharp declines in diversity were driven by the combined climate-land cover scenarios; however, there were subtle, region-specific differences in model outputs for each scenario, where certain regions experienced relatively higher species loss under climate or land cover only models. We strongly caution that predicted future gains in plant diversity will depend on the development and maintenance of dispersal pathways that connect current and future suitable habitats. The forecast for Madagascar's plant diversity in the face of future environmental change is worrying: regional diversity will continue to decrease in response to the combined effects of climate and land cover change, with habitats such as ericoid thickets and eastern lowland and sub-humid forests particularly vulnerable into the future.

  1. A Collaborative Proposal: Simulating and Understanding Abrupt Climate-Ecosystem Changes During Holocene with NCAR-CCSM3.

    Energy Technology Data Exchange (ETDEWEB)

    Zhengyu Liu, Bette Otto-Bliesner

    2013-02-01

    We have made significant progress in our proposed work in the last 4 years (3 years plus 1 year of no cost extension). In anticipation of the next phase of study, we have spent time on the abrupt changes since the last glacial maximum. First, we have performed further model-data comparison based on our baseline TRACE-21 simulation and made important progress towards the understanding of several major climate transitions. Second, we have made a significant effort in processing the model output of TRACE-21 and have put this output on a website for access by the community. Third, we have completed many additional sensitivity experiments. In addition, we have organized synthesis workshops to facilitate and promote transient model-data comparison for the international community. Finally, we have identified new areas of interest for Holocene climate changes.

  2. Changing behaviours, pushing social practices towards more sustainability. The contribution of human and social sciences to understand and act

    International Nuclear Information System (INIS)

    Martin, Solange; Gaspard, Albane

    2016-09-01

    Beyond broad policy declarations, the implementation of ecological transition - which consists mainly in curbing consumption of energy and raw materials in our societies - requires substantial behavioural change at the collective, but also, quite obviously, the individual level. Yet, though there is general consensus around the principle of embarking on the path to transition, things get more complicated when it comes to changing our practices and habits. Can we act on individual behaviour and collective dynamics in respect of this particular aim of ecological transition, and, if so, how are we to go about it? Solange Martin and Albane Gaspard have examined this question for the French Environment and Energy Management Agency (ADEME) and offer us the fruit of their labours here. They show, for example, how the social and human sciences help to understand behaviour both at the individual level and in its collective dimensions, and they outline different possible lines of action to modify it. But, given the entanglement between various levels, it is essential, if we are to act effectively on behaviour, to combine approaches, tools and actors, and to analyse and understand social practices thoroughly before implementing political projects or measures

  3. Understanding Social Media’s Take on Climate Change through Large-Scale Analysis of Targeted Opinions and Emotions

    Energy Technology Data Exchange (ETDEWEB)

    Pathak, Neetu; Henry, Michael J.; Volkova, Svitlana

    2017-03-29

    Social media is a powerful data source for researchers interested in understanding population-level behavior, having been successfully leveraged in a number of different application areas including flu and illness prediction models, detecting civil unrest, and measuring public sentiment towards a given topic of interest within the public discourse. In this work, we present a study of a large collection of Twitter data centered on the social conversation around global cli- mate change during the UN Climate Change Conference, held in Paris, France during December 2015 (COP21). We first developed a mechanism for distinguishing between personal and non-personal accounts. We then analyzed demographics and emotion and opinion dynamics over time and location in order to understand how the different user types converse around meaningful topics on social media. This methodology offers an in-depth insight into the behavior and opinions around a topic where multiple distinct narratives are present, and lays the groundwork for future work in studying narratives in social media.

  4. Resilience, political ecology, and well-being: an interdisciplinary approach to understanding social-ecological change in coastal Bangladesh

    Directory of Open Access Journals (Sweden)

    Sonia F. Hoque

    2017-06-01

    Full Text Available The commodification of peasant livelihoods through export-oriented aquaculture has brought about significant social-ecological changes in low-lying coastal areas in many parts of Asia. A better understanding of the underlying drivers and distributional effects of these changes requires integration of social and ecological approaches that often have different epistemological origins. Resilience thinking has gained increased traction in social-ecological systems research because it provides a dynamic analysis of the cross-scalar interactions between multiple conditions and processes. However, the system-oriented perspective inherent in resilience thinking fails to acknowledge the heterogeneous values, interests, and power of social actors and their roles in navigating social-ecological change. Incorporation of political ecology and well-being perspectives can provide an actor-oriented analysis of the trade-offs associated with change and help to determine which state is desirable for whom. However, empirical demonstrations of such interdisciplinary approaches remain scarce. Here, we explore the combined application of resilience, political ecology, and well-being in investigating the root causes of social-ecological change and identifying the winners and losers of system transformation through empirical analysis of the differential changes in farming systems in two villages in coastal Bangladesh. Using the adaptive cycle as a structuring model, we examine the evolution of the shrimp aquaculture system over the past few decades, particularly looking at the power dynamics between households of different wealth classes. We found that although asymmetric land ownership and political ties enabled the wealthier households to reach their desired farming system in one village, social resilience achieved through memory, leadership, and crisis empowered poorer households to exercise their agency in another village. Material dimensions such as improved

  5. Development and validation of a system of assimilation indices: A mixed method approach to understand change in psychotherapy.

    Science.gov (United States)

    Neto, David D; Baptista, Telmo M; Dent-Brown, Kim

    2015-06-01

    Assimilation is an important process in understanding change in psychotherapy. Similar to other psychological processes, assimilation may be traceable in the speech of clients by attending to its signs or indices. In the present research, we aimed to build a system of indices of assimilation. This research follows a mixed method design. The indices were derived through qualitative analysis, using grounded theory. Subsequently, the indices were adjusted quantitatively and applied to 30 single psychotherapy sessions of adult clients with depression and 11 therapists. Forty-two indices were found and grouped into the following five process categories of assimilation: external distress, pain, noticing, decentring and action. The indices showed good inter-rater reliability and internal consistency. Except for noticing, all process categories correlated significantly with each other according to conceptual proximity. The system of indices also showed convergent validity with an existing coding system of assimilation for two process categories. The results suggest that the system of indices is a useful approach for understanding assimilation. The consideration of assimilation in a continuous fashion through sub-processes may help to extend our knowledge of this process and provide a tool for clinical practice. Assimilation is an important process in understanding change in psychotherapy in the sense that it takes into account insight and action-related processes. Clients convey in their speech signs or indices of the assimilation process which can be observed both in the style and content of their utterances. Using these indices, therapists can continuously assess assimilation and use this information in choosing interventions. Limitations: This study follows a cross-sectional design and does not allow consideration of the predictive value of the indices. The outcome of the therapy was not taken into account, which restricts validity considerations to the comparison with

  6. Polar Bears or People?: How Framing Can Provide a Useful Analytic Tool to Understand & Improve Climate Change Communication in Classrooms

    Science.gov (United States)

    Busch, K. C.

    2014-12-01

    Not only will young adults bear the brunt of climate change's effects, they are also the ones who will be required to take action - to mitigate and to adapt. The Next Generation Science Standards include climate change, ensuring the topic will be covered in U.S. science classrooms in the near future. Additionally, school is a primary source of information about climate change for young adults. The larger question, though, is how can the teaching of climate change be done in such a way as to ascribe agency - a willingness to act - to students? Framing - as both a theory and an analytic method - has been used to understand how language in the media can affect the audience's intention to act. Frames function as a two-way filter, affecting both the message sent and the message received. This study adapted both the theory and the analytic methods of framing, applying them to teachers in the classroom to answer the research question: How do teachers frame climate change in the classroom? To answer this question, twenty-five lessons from seven teachers were analyzed using semiotic discourse analysis methods. It was found that the teachers' frames overlapped to form two distinct discourses: a Science Discourse and a Social Discourse. The Science Discourse, which was dominant, can be summarized as: Climate change is a current scientific problem that will have profound global effects on the Earth's physical systems. The Social Discourse, used much less often, can be summarized as: Climate change is a future social issue because it will have negative impacts at the local level on people. While it may not be surprising that the Science Discourse was most often heard in these science classrooms, it is possibly problematic if it were the only discourse used. The research literature on framing indicates that the frames found in the Science Discourse - global scale, scientific statistics and facts, and impact on the Earth's systems - are not likely to inspire action-taking. This

  7. Regional Arctic System Model (RASM): A Tool to Advance Understanding and Prediction of Arctic Climate Change at Process Scales

    Science.gov (United States)

    Maslowski, W.; Roberts, A.; Osinski, R.; Brunke, M.; Cassano, J. J.; Clement Kinney, J. L.; Craig, A.; Duvivier, A.; Fisel, B. J.; Gutowski, W. J., Jr.; Hamman, J.; Hughes, M.; Nijssen, B.; Zeng, X.

    2014-12-01

    The Arctic is undergoing rapid climatic changes, which are some of the most coordinated changes currently occurring anywhere on Earth. They are exemplified by the retreat of the perennial sea ice cover, which integrates forcing by, exchanges with and feedbacks between atmosphere, ocean and land. While historical reconstructions from Global Climate and Global Earth System Models (GC/ESMs) are in broad agreement with these changes, the rate of change in the GC/ESMs remains outpaced by observations. Reasons for that stem from a combination of coarse model resolution, inadequate parameterizations, unrepresented processes and a limited knowledge of physical and other real world interactions. We demonstrate the capability of the Regional Arctic System Model (RASM) in addressing some of the GC/ESM limitations in simulating observed seasonal to decadal variability and trends in the sea ice cover and climate. RASM is a high resolution, fully coupled, pan-Arctic climate model that uses the Community Earth System Model (CESM) framework. It uses the Los Alamos Sea Ice Model (CICE) and Parallel Ocean Program (POP) configured at an eddy-permitting resolution of 1/12° as well as the Weather Research and Forecasting (WRF) and Variable Infiltration Capacity (VIC) models at 50 km resolution. All RASM components are coupled via the CESM flux coupler (CPL7) at 20-minute intervals. RASM is an example of limited-area, process-resolving, fully coupled earth system model, which due to the additional constraints from lateral boundary conditions and nudging within a regional model domain facilitates detailed comparisons with observational statistics that are not possible with GC/ESMs. In this talk, we will emphasize the utility of RASM to understand sensitivity to variable parameter space, importance of critical processes, coupled feedbacks and ultimately to reduce uncertainty in arctic climate change projections.

  8. TERRECO: A Flux-Based Approach to Understanding Landscape Change, Potentials of Resilience and Sustainability in Ecosystem Services

    Science.gov (United States)

    Tenhunen, J. D.; Kang, S.

    2011-12-01

    The Millenium Assessment has provided a broad perspective on the ways and degree to which global change has stressed ecosystems and their potential to deliver goods and services to mankind. Management of natural resources at regional scale requires a clear understanding of the ways that ongoing human activities modify or create new system stressors, leading to net gains or losses in ecosystem services. Ever since information from the International Biological Program (IBP) was summarized in the 1960s, we know that ecosystem stress response, recovery and resilience are related to changes in ecosystem turnover of materials, nutrient retention or loss, resource use efficiencies, and additional ecosystem properties that determine fluxes of carbon, water and nutrients. At landscape or regional scale, changes in system drivers influence land-surface to atmosphere gas exchange (water, carbon and trace gas emissions), the seasonal course of soil resource stores, hydrology, and transport of nutrients and carbon into and through river systems. In today's terminology, shifts in these fluxes indicate a modification of potential ecosystem services provided to us by the landscape or region of interest, and upon which we depend. Ongoing modeling efforts of the TERRECO project carried out in S. Korea focus on describing landscape and regional level flow networks for carbon, water, and nutrients, but in addition monetary flows associated with gains and losses in ecosystem services (cf. Fig. 1). The description is embedded within a framework which examines the trade-offs between agricultural intensification versus yield of high quality water to reservoirs for drinking water supply. The models also quantify hypothetical changes in flow networks that would occur in the context of climate, land use and social change scenarios.

  9. Catalyst for Change

    Science.gov (United States)

    Barton, Casey; Collura, Kenneth

    2003-01-01

    As a pioneer in education technology, Bishop Hartley High School, a Catholic high school in Columbus, Ohio, has sought to embrace change with a revolutionary computer from Hewlett-Packard known as the Compaq Tablet PC TC1000. In February 2003, Bishop Hartley became the first high school in the country to give an entire student class their own…

  10. Understanding nucleic acid structural changes by comparing wide-angle x-ray scattering (WAXS) experiments to molecular dynamics simulations

    Energy Technology Data Exchange (ETDEWEB)

    Pabit, Suzette A.; Katz, Andrea M.; Pollack, Lois [School of Applied and Engineering Physics, Cornell University, Ithaca, New York 14853 (United States); Tolokh, Igor S. [Department of Computer Science, Virginia Tech, Blacksburg, Virginia 24061 (United States); Drozdetski, Aleksander [Department of Physics, Virginia Tech, Blacksburg, Virginia 24061 (United States); Baker, Nathan [Pacific Northwest National Laboratory, Richland, Washington 99352 (United States); Onufriev, Alexey V. [Department of Computer Science, Virginia Tech, Blacksburg, Virginia 24061 (United States); Department of Physics, Virginia Tech, Blacksburg, Virginia 24061 (United States)

    2016-05-28

    Wide-angle x-ray scattering (WAXS) is emerging as a powerful tool for increasing the resolution of solution structure measurements of biomolecules. Compared to its better known complement, small angle x-ray scattering (SAXS), WAXS targets higher scattering angles and can enhance structural studies of molecules by accessing finer details of solution structures. Although the extension from SAXS to WAXS is easy to implement experimentally, the computational tools required to fully harness the power of WAXS are still under development. Currently, WAXS is employed to study structural changes and ligand binding in proteins; however, the methods are not as fully developed for nucleic acids. Here, we show how WAXS can qualitatively characterize nucleic acid structures as well as the small but significant structural changes driven by the addition of multivalent ions. We show the potential of WAXS to test all-atom molecular dynamics (MD) simulations and to provide insight into understanding how the trivalent ion cobalt(III) hexammine (CoHex) affects the structure of RNA and DNA helices. We find that MD simulations capture the RNA structural change that occurs due to addition of CoHex.

  11. Work related Changes And New Understandings Of Prevention: Results Of Multi-Level Participatory Interventions In Four SMEs

    DEFF Research Database (Denmark)

    Ipsen, Christine; Poulsen, Signe; Gish, Liv

    2014-01-01

    This paper presents the result of four SMEs’ use of a multi-level participatory self-help intervention model (the PoWRS model – Prevention of Work Related Stress). The model itself supports a new view on prevention of work-related stress in the participating companies besides the concrete...... to explicate tacit knowledge about what creates enthusiasms and stress at the work place, Multi-voting which decided two work-related changes to be initiated, a KickOff session to mark the start-up of the actual changes, continuous interviews of colleagues by the in-house facilitators, and ongoing status...... be addressed and how prevention of work-related stress can be understood. In addition to supporting a new understanding of prevention, the use of the model also results in concrete changes which become solutions to the work-place’s current and specific problems. The use of the PoWRS model thus enables an SME...

  12. Is There a Role for Endogenous 5-HT in Gastrointestinal Motility? How Recent Studies Have Changed Our Understanding.

    Science.gov (United States)

    Spencer, Nick J; Keating, Damien J

    2016-01-01

    Over the past few years, there have been dramatic changes in our understanding of the role of endogenous 5-hydroxytryptamine (5-HT) in the generation of gastrointestinal (GI) motility patterns in the small and large intestine. The idea that endogenous 5-HT played a major role in the generation of peristalsis in the small intestine was first proposed in the mid 1950s, after it was discovered that endogenous 5-HT could be released from the mucosa at a similar time that peristalsis occurred; and that exogenous 5-HT could potently stimulate peristalsis. The fact that exogenous 5-HT stimulated peristalsis and that there was a similarity in timing between the release of 5-HT from the mucosa and the onset of peristalsis led investigators to propose that release of endogenous 5-HT from the mucosa was causally related to the generation of peristalsis. In further support of this, other studies showed that selective 5-HT antagonists could inhibit or block peristalsis, and other motor patterns, such as the migrating motor complex. Taken together, based on these findings, some laboratories believed that endogenous 5-HT (synthesized in the gut wall) was an important mediator, or initiator, of different propulsive motor patterns in the lower GI tract. This notion changed dramatically in the past few years, however, after it was discovered that removal of the mucosa abolished all cyclical release of endogenous 5-HT, but did not block peristalsis, nor the cyclical migrating complex. Furthermore, other laboratories revealed that genetic deletion of the gene tryptophan hydroxylase 1 (TPH-1) (that synthesizes endogenous 5-HT in the mucosa) actually had no inhibitory effect on transit of intestinal contents in live animals. Then, perhaps one of the most startling of all observations was the discovery that selective 5-HT receptor antagonists actually have the same inhibitory effects on peristalsis and the migrating complex in segments of intestine that had been depleted of all

  13. Signage as a tool for behavioral change: Direct and indirect routes to understanding the meaning of a sign.

    Science.gov (United States)

    Meis, Julia; Kashima, Yoshihisa

    2017-01-01

    Signs, prompts, and symbols are a common means to change behavior in our society. Understanding the psychological mechanisms by which signage influences behavior is a critical first step to achieve the desired outcome. In the current research, we propose a theoretical model of sign-to-behavior process. The model suggests that when one encounters a sign, it is encoded to construct an action representation (comprehension process), which is then acted on unless its enactment is inhibited (decision process). We test the implications of the model in two studies. In support of our hypothesis, for unfamiliar signs, clarity of purpose predicts perceived effectiveness of a sign; however, for familiar signs, clarity of purpose does not matter. Insights gained from the studies will help to design effective signs. Practical implications of the model are discussed, and future research directions are outlined.

  14. Understanding the interactions between Social Capital, climate change, and community resilience in Gulf of Mexico coastal counties

    Science.gov (United States)

    Young, C.; Blomberg, B.; Kolker, A.; Nguyen, U.; Page, C. M.; Sherchan, S. P.; Tobias, V. D.; Wu, H.

    2017-12-01

    Coastal communities in the Gulf of Mexico are facing new and complex challenges as their physical environment is altered by climate warming and sea level rise. To effectively prepare for environmental changes, coastal communities must build resilience in both physical structures and social structures. One measure of social structure resilience is how much social capital a community possesses. Social capital is defined as the connections among individuals which result in networks with shared norms, values and understandings that facilitate cooperation within or among groups. Social capital exists in three levels; bonding, bridging and linking. Bonding social capital is a measure of the strength of relationships amongst members of a network who are similar in some form. Bridging social capital is a measure of relationships amongst people who are dissimilar in some way, such as age, education, or race/ethnicity. Finally Linking social capital measures the extent to which individuals build relationships with institutions and individuals who have relative power over them (e.g local government, educational institutions). Using census and American Community Survey data, we calculated a Social Capital index value for bonding, bridging and linking for 60 Gulf of Mexico coastal counties for the years 2000, and 2010 to 2015. To investigate the impact of social capital on community resilience we coupled social capital index values with physical datasets of land-use/land cover, sea level change, climate, elevation and surface water quality for each coastal county in each year. Preliminary results indicate that in Gulf of Mexico coastal counties, increased bonding social capital results in decreased population change. In addition, we observed a multi-year time lag in the effect of increased bridging social capital on population stability, potentially suggesting key linkages between the physical and social environment in this complex coupled-natural human system. This

  15. Beyond Climate Scenarios: Advancing from Changes in the Mean to a Better Understanding of Physical Processes to Enhance Stakeholder Engagement

    Science.gov (United States)

    Yates, D. N.; Kaatz, L.; Ammann, C. M.

    2017-12-01

    Great strides have been made within the climate sciences community to make Global Climate Model (GCM) output and their results as meaningful as possible to the broad community of stakeholders that might benefit from this information. Regardless of these good intentions, the fact remains that most data from GCMs are viewed as being highly uncertain and thus not actionable for water resources planning. The most common use of GCM data is informing projected future climate by use of a mean change, primarily for temperature, given the generally greater confidence in this variable. In contrast, precipitation is viewed as highly uncertain, primarily because it has not validated well against observed precipitation climatologies at local and regional levels. Simple perturbations to historical mean temperature and precipitation sequences are not as complex as using direct GCM outputs and have fewer analytical requirements. Mean climate change information can still give valuable information to water managers, providing meaningful insights and sign posts into future vulnerabilities and is an approach that is arguably deemed more actionable. These temperature and precipitation sign posts can be monitored and used as indicators when certain actions become necessary and/or until there are improvements in actionable climate science information. Recent advances in regional climate modeling (RCM), particularly those run at very high resolution and are cloud resolving, show promise in advancing our understanding of the interaction among climate variables at the regional level. Thus, in addition to exploring how changes in the mean climate (e.g. 2oC warming) might impact a water system, this bottom-up approach makes use of carefully constructed regional climate experiments that are conducted, for example, under conditions of a warmer atmosphere that can hold more moisture. One can then explore what happens to, for example, rain-snow partitioning at various elevations across a snow

  16. Coupling environmental, social and economic models to understand land-use change dynamics in the Mekong Delta

    Directory of Open Access Journals (Sweden)

    Alexis eDrogoul

    2016-03-01

    Full Text Available The Vietnamese Mekong Delta has undergone in recent years a considerable transformation in agricultural land-use, fueled by a boom of the exportation, an increase of population, a focus on intensive crops, but also environmental factors like sea level rise or the progression of soil salinity. These transformations have been, however, largely misestimated by the ten-year agricultural plans designed at the provincial levels, on the predictions of which, though, most of the large-scale investments (irrigation infrastructures, protection against flooding or salinity intrusion, and so on are normally planned. This situation raises the question of how to explain the divergence between the predictions used as a basis for these plans and the actual situation. Answering it could, as a matter of fact, offer some insights on the dynamics at play and hopefully allow designing them more accurately.The dynamics of land-use change at a scale of a region results from the interactions between heterogeneous actors and factors at different scales, among them institutional policies, individual farming choices, land-cover and environmental changes, economic conditions, social dynamics, just to name a few. Understanding its evolution, for example, in this case, to better support agricultural planning, therefore requires the use of models that can represent the individual contributions of each actor or factor, and of course their interactions.We address this question through the design of an integrated hybrid model of land-use change in a specific and carefully chosen case study, which relies on the central hypothesis that the main force driving land-use change is actually the individual choices made by farmers at their local level. Farmers are the actors who decide (or not to switch from one culture to another and the shifts observed at more global levels (village, district, province, region are considered, in this model, as a consequence of the aggregation of these

  17. Paraphyly changes understanding of timing and tempo of diversification in subtribe Hakeinae (Proteaceae), a giant Australian plant radiation.

    Science.gov (United States)

    Mast, Austin R; Olde, Peter M; Makinson, Robert O; Jones, Eric; Kubes, Amanda; Miller, Eliot T; Weston, Peter H

    2015-10-01

    Subtribe Hakeinae (526 spp.) represents a large Australian plant radiation central to our understanding of that flora's evolution and ecology. It contains Grevillea-the third largest plant genus in Australia and a group inferred to have among the highest diversification rates in the angiosperms. However, we lack a robust phylogenetic framework for understanding subtribe Hakeinae and recognize that Grevillea lacks an unambiguous synapomorphy supporting its monophyly. We used four plastid and one nuclear DNA region from a taxonomically even sampling of a third of the species to infer a time-calibrated phylogeny of Hakeinae and absolute diversification rates of major clades. We developed the R package addTaxa to add unsampled taxa to the tree for diversification rate inference. Grevillea is paraphyletic with respect to Hakea and Finschia. Under most parameter combinations, Hakea contains the major clade with the highest diversification rate in Hakeinae, rather than Grevillea. The crown age of the Grevillea+Hakea+Finschia crown group is about double that of prior estimates. We demonstrate that the paraphyly of Grevillea considerably enlarges the number of Australian descendants from its most recent common ancestor but has also misled investigators who considered a single operational taxonomic unit as adequate to represent the genus for inferences of diversification rate and timing. Our time-calibrated phylogeny can form the basis of future evolutionary, comparative ecology, and biogeography studies involving this large Australian plant radiation, as well as nomenclatural changes. © 2015 Botanical Society of America.

  18. Design of Dwellings and Interior Family Space in China: Understanding the History of Change and Opportunities for Improved Sustainability Practices

    Directory of Open Access Journals (Sweden)

    Adrian Pitts

    2014-10-01

    Full Text Available This paper reviews briefly the recent history of dwelling design in China. It notes the rapid changes that have taken place since the 1980s and identifies the way contemporary procurement processes leave out the final fit-out and decoration/refurbishment. A range of stakeholders were interviewed, and access was gained to drawings and other technical data that indicated how the secondary processes were carried out. These are largely ungoverned by regulation in the same way necessary for initial design. The key group is the occupants who drive the fit-out and decoration according to personal and cultural requirements, but often with less than perfect understanding of sustainability. The interior design industry has developed rapidly over the same period and was initially lacking in professional knowledge and understanding (something which can still be found. Advice provided to dwelling occupants was based more on appearance than function and efficiency. Over the same period, beneficial modifications to construction processes have been introduced in relation to structural design, and it should be possible to do the same for sustainability-related design issues. The paper advocates: more regulation; better assessment techniques; more information and guidance for home-owners; and a greater focus on energy issues.

  19. RASC-AL (Revolutionary Aerospace Systems Concepts-Academic Linkage): 2002 Advanced Concept Design Presentation

    Science.gov (United States)

    2002-01-01

    The Revolutionary Aerospace Systems Concepts-Academic Linkage (RASC-AL) is a program of the Lunar and Planetary Institute (LPI) in collaboration with the Universities Space Research Association's (USRA) ICASE institute through the NASA Langley Research Center. The RASC-AL key objectives are to develop relationships between universities and NASA that lead to opportunities for future NASA research and programs, and to develop aerospace systems concepts and technology requirements to enable future NASA missions. The program seeks to look decades into the future to explore new mission capabilities and discover what's possible. NASA seeks concepts and technologies that can make it possible to go anywhere, at anytime, safely, reliably, and affordably to accomplish strategic goals for science, exploration, and commercialization. University teams were invited to submit research topics from the following themes: Human and Robotic Space Exploration, Orbital Aggregation & Space Infrastructure Systems (OASIS), Zero-Emissions Aircraft, and Remote Sensing. RASC-AL is an outgrowth of the HEDS-UP (University Partners) Program sponsored by the LPI. HEDS-UP was a program of the Lunar and Planetary Institute designed to link universities with NASA's Human Exploration and Development of Space (HEDS) enterprise. The first RASC-AL Forum was held November 5-8, 2002, at the Hilton Cocoa Beach Oceanfront Hotel in Cocoa Beach, Florida. Representatives from 10 university teams presented student research design projects at this year's Forum. Each team contributed a written report and these reports are presented.

  20. The ubiquitous reflex and its critics in post-revolutionary Russia.

    Science.gov (United States)

    Sirotkina, Irina

    2009-03-01

    In the last century, the reflex was more than a scientific concept: it was a cultural idiom that could be used to various aims--political, scholarly, and artistic. In Russia in the 1920s, the reflex became a ubiquitous notion and a current word, part of the revolutionary discourse and, finally, a password to modernity. Two major factors contributed to it: physiological theories of the reflex, widespread in Russia at the early twentieth-century, and the materialist philosophy backed after the Revolution by the Communist party. Everybody who wished to be modern and materialist, in conformity with the official communist views, had to refer to reflexes. Yet, even in this period, the concept was not unproblematic and was criticized by some scientists, philosophers, artists and even Party members. In the paper, I describe both the array of uses of the term and the criticism it received in political, scientific and artistic discourses. It is not uncommon that, taking their origins in culture and common language, scientific concepts later return there in the form of metaphors. Similarly, the reflex was made into a rigorous scientific concept in the nineteenth century but, in the next century, it circulated as a cultural idiom penetrating various areas of political, artistic and academic life.

  1. Consequences of the Communist Revolutionary Ideology for the Catholic Community in Slovenia

    Directory of Open Access Journals (Sweden)

    Bogdan Kolar

    2013-09-01

    Full Text Available The Second World War began in Slovenia on 6 April, 1941 with the occupation of the national territory by the German, Italian and Hungarian occupying forces and resulted not only in the efforts to liberate the country but gave rise to intense revolutionary events. By declaring the liberation movement its exclusive right, the Communist Party, until then banned and working underground, announced a fierce fight against anyone not willing to submit to its plans and leadership. It also used the Civil War to launch a revolution. Following the Church’s teaching, Slovenian Catholics were reluctant to go along with such conduct. Violence against ideological opponents of Communism began already in the autumn of 1941. At the end of war when the Communist Party and its satellite organizations took over the country, the violence against those who disagreed continued and culminated in the summer of 1945. Among them were many Catholic families, priests and members of religious orders. Pressure on the priests started to decline after 1960, yet the pressure on the Catholic laity grew stronger.

  2. Metaphors of mind and society. The origins of German psychiatry in the revolutionary era.

    Science.gov (United States)

    Hansen, L

    1998-09-01

    Johann Christian Reil's long polemic, Rhapsodieen über die Anwendung der psychischen Curmethode der Geisteszerrütungen (1803), is a call for the reform of the treatment of the insane. It also marks a transition from the Kantian approach to physiology of his earlier work to the Naturphilosophie that increasingly characterized his publications after this time. In this essay I first survey the historiographical debates of recent years concerning society and the emergence of psychiatry. I then examine the social-cultural context of the late Aufklärung in Prussia, out of which Reil's work emerged, before sketching the intellectual background of the Rhapsodieen, which lies in the development of German physiology since the 1750s. The heart of my work is a close analysis of Reil's theory of mental illness. Here I tease out his political and cultural imagery and note the ways in which his originally Enlightenment assumptions shifted toward the Romantic amid the anxieties of the revolutionary era.

  3. Mark Twain in the Russian Pre-Revolutionary Periodical. Part 2

    Directory of Open Access Journals (Sweden)

    Ekaterina A. Stetsenko

    2017-09-01

    Full Text Available This article deals with the analysis of interpretation of the works by Mark Twain, famous American author, in the Russian pre-revolutionary periodical press (1872–1916. The objects of research are critical articles, essays, reviews, correspondences, introductions to publications of Twain’s short stories and novels, obituaries, and other materials printed in central and provincial magazines and newspapers. Perception of Twain in Russia was contingent on many factors including political and cultural situation in the country, state of social thought and literary criticism, newspaper and magazine conjuncture etc., always remaining polysemantic and conflicting. In different times, in the years of democratic rising or reaction critics looked for something in Twain’s works that corresponded to the spirit of their time and helped solve ideological and aesthetic problems. Twain had reputation of either a “pure humorist” or a great writer, philosopher, and moralist. Democrats, liberals, conservatives, feminists, adepts of realistic or naturalistic trends in art discussed Twain’s works that became a source of knowledge about the United States and inspired polemics about Russia’s further development. Twain was highly esteemed as the author of books for children and young people. Yet his works that criticized monarchism and imperialism were often ignored or abridged. The history of Twain’s interpretation in the Russian press serves as evidence of the fact that perception of foreign literature is a dynamic and bumpy process, repeating itself and moving backwards but also getting to deeper levels of meanings.

  4. The Revolutionary Armed Forces of Colombia (FARC and the Development of Narco-Submarines

    Directory of Open Access Journals (Sweden)

    Michelle Jacome Jaramillo

    2016-03-01

    Full Text Available The Revolutionary Armed Forces of Colombia (FARC have been one of the world's most consistently formidable violent non-state actors over the last forty years. Unsurprisingly, the group has provided one of the most compelling and concerning examples of the level of technical sophistication attainable by sub-state organizations. Over the last two decades the group has carried out an iterative and innovative process that, in reaction to improved detection capabilities, has brought them from depending on disposable go-fast boats to transport drugs to possessing fully submersible and reusable covert vessels for transportation. The following case study will discuss the development of narco-submarines and the underlying motivations behind the pursuit of this complex engineering task. The case study will outline the different phases of the narco-submarine development and highlight FARC’s determination to overcome the challenges present in each design. This discussion will show how FARC’s systematized acquiring of information and expertise has resulted in the accomplishment of fully submersible vessels, capable of transporting more than 10 tons of illicit product.

  5. THE MODERN MEDIA AND THEIR EFFECT ON THE REVOLUTIONARY PROCESS «ARAB SPRING»

    Directory of Open Access Journals (Sweden)

    Murad Mohammed Ba Alawi

    2015-02-01

    Full Text Available The article is about the role that played the Internet in the organization of the occurred events of 2011 in the Arab world, the so-called «Arab spring».It has been shown how they used new media as an instrument of calls, organizing protests and exchanging information and the import of revolution from one country to another. It is revealed how the Arab events have demonstrated the importance and high efficiency of modern technologies.Purpose. To reveal the role of modern media and their influence on the revolutionary process in the Arab countries.Methodology. Applied general scientific methods of analysis and synthesis, system approach. In the process of preparations the article carried out an analysis of factual material, scientific sources, used statistical data.Results. It has been shown the absence of trust in the traditional media that belongs to the state, and mastering new technological facilities have led to an active use of the Internet as a political instrument during the «Arab Spring».

  6. Understanding the dynamics of sustainable change: A 20-year case study of integrated health and social care.

    Science.gov (United States)

    Klinga, Charlotte; Hasson, Henna; Andreen Sachs, Magna; Hansson, Johan

    2018-06-04

    Change initiatives face many challenges, and only a few lead to long-term sustainability. One area in which the challenge of achieving long-term sustainability is particularly noticeable is integrated health and social care. Service integration is crucial for a wide range of patients including people with complex mental health and social care needs. However, previous research has focused on the initiation, resistance and implementation of change, while longitudinal studies remain sparse. The objective of this study was therefore to gain insight into the dynamics of sustainable changes in integrated health and social care through an analysis of local actions that were triggered by a national policy. A retrospective and qualitative case-study research design was used, and data from the model organisation's steering-committee minutes covering 1995-2015 were gathered and analysed. The analysis generated a narrative case description, which was mirrored to the key elements of the Dynamic Sustainability Framework (DSF). The development of inter-sectoral cooperation was characterized by a participatory approach in which a shared structure was created to support cooperation and on-going quality improvement and learning based on the needs of the service user. A key management principle was cooperation, not only on all organisational levels, but also with service users, stakeholder associations and other partner organisations. It was shown that all these parts were interrelated and collectively contributed to the creation of a structure and a culture which supported the development of a dynamic sustainable health and social care. This study provides valuable insights into the dynamics of organizational sustainability and understanding of key managerial actions taken to establish, develop and support integration of health and social care for people with complex mental health needs. The service user involvement and regular reviews of service users' needs were essential in order

  7. Understanding how deployment experiences change over time: Comparison of female and male OEF/OIF and Gulf War veterans.

    Science.gov (United States)

    Fox, Annie B; Walker, Brian E; Smith, Brian N; King, Daniel W; King, Lynda A; Vogt, Dawne

    2016-03-01

    Despite increased attention to the evolving nature of war, the unique challenges of contemporary deployment, and women's changing role in warfare, few studies have examined differences in deployment stressors across eras of service or evaluated how gender differences in deployment experiences have changed over time. Using data collected from two national survey studies, we examined war cohort and gender differences in veterans' reports of both mission-related and interpersonal stressors during deployment. Although Operation Enduring Freedom and Operation Iraqi Freedom veterans reported more combat experiences and greater preparedness for deployment compared to Gulf War veterans, Gulf War veterans reported higher levels of other mission-related stressors, including difficult living and working environment, perceived threat, and potential exposure to nuclear, biological, and chemical weapons. Gender differences also emerged, with men reporting greater exposure to mission-related stressors and women reporting higher levels of interpersonal stressors. However, the size and nature of gender differences did not differ significantly when comparing veterans of the two eras. By understanding how risk factors for PTSD differ based on war era and gender, veterans' experiences can be better contextualized. (c) 2016 APA, all rights reserved).

  8. Habit Discontinuity, Self-Activation, and the Diminishing Influence of Context Change: Evidence from the UK Understanding Society Survey.

    Directory of Open Access Journals (Sweden)

    Gregory Owen Thomas

    Full Text Available Repeated behaviours in stable contexts can become automatic habits. Habits are resistant to information-based techniques to change behaviour, but are contextually cued, so a change in behaviour context (e.g., location weakens habit strength and can facilitate greater consideration of the behaviour. This idea was demonstrated in previous work, whereby people with strong environmental attitudes have lower car use, but only after recently moving home. We examine the habit discontinuity hypothesis by analysing the Understanding Society dataset with 18,053 individuals representative of the UK population, measuring time since moving home, travel mode to work, and strength of environmental attitudes. Results support previous findings where car use is significantly lower among those with stronger environmental views (but only after recently moving home, and in addition, demonstrate a trend where this effects decays as the time since moving home increases. We discuss results in light of moving into a new home being a potential 'window of opportunity' to promote pro-environmental behaviours.

  9. Habit Discontinuity, Self-Activation, and the Diminishing Influence of Context Change: Evidence from the UK Understanding Society Survey.

    Science.gov (United States)

    Thomas, Gregory Owen; Poortinga, Wouter; Sautkina, Elena

    2016-01-01

    Repeated behaviours in stable contexts can become automatic habits. Habits are resistant to information-based techniques to change behaviour, but are contextually cued, so a change in behaviour context (e.g., location) weakens habit strength and can facilitate greater consideration of the behaviour. This idea was demonstrated in previous work, whereby people with strong environmental attitudes have lower car use, but only after recently moving home. We examine the habit discontinuity hypothesis by analysing the Understanding Society dataset with 18,053 individuals representative of the UK population, measuring time since moving home, travel mode to work, and strength of environmental attitudes. Results support previous findings where car use is significantly lower among those with stronger environmental views (but only after recently moving home), and in addition, demonstrate a trend where this effects decays as the time since moving home increases. We discuss results in light of moving into a new home being a potential 'window of opportunity' to promote pro-environmental behaviours.

  10. Microencapsulated Phase Change Materials in Solar-Thermal Conversion Systems: Understanding Geometry-Dependent Heating Efficiency and System Reliability.

    Science.gov (United States)

    Zheng, Zhaoliang; Chang, Zhuo; Xu, Guang-Kui; McBride, Fiona; Ho, Alexandra; Zhuola, Zhuola; Michailidis, Marios; Li, Wei; Raval, Rasmita; Akhtar, Riaz; Shchukin, Dmitry

    2017-01-24

    The performance of solar-thermal conversion systems can be improved by incorporation of nanocarbon-stabilized microencapsulated phase change materials (MPCMs). The geometry of MPCMs in the microcapsules plays an important role for improving their heating efficiency and reliability. Yet few efforts have been made to critically examine the formation mechanism of different geometries and their effect on MPCMs-shell interaction. Herein, through changing the cooling rate of original emulsions, we acquire MPCMs within the nanocarbon microcapsules with a hollow structure of MPCMs (h-MPCMs) or solid PCM core particles (s-MPCMs). X-ray photoelectron spectroscopy and atomic force microscopy reveals that the capsule shell of the h-MPCMs is enriched with nanocarbons and has a greater MPCMs-shell interaction compared to s-MPCMs. This results in the h-MPCMs being more stable and having greater heat diffusivity within and above the phase transition range than the s-MPCMs do. The geometry-dependent heating efficiency and system stability may have important and general implications for the fundamental understanding of microencapsulation and wider breadth of heating generating systems.

  11. Dreaming the Chinese Dream. How the People’s Republic of China Moved from Revolutionary Goals to Global Ambitions

    Directory of Open Access Journals (Sweden)

    Stefan R. Landsberger

    2014-12-01

    Full Text Available On 1 October 2014, the People’s Republic of China (PRC will observe the 65th anniversary of its founding which ended a decades’ long period of oppression by imperialism, internal strife and (civil war. Under the Chinese Communist Party (CCP, modernisation became the most important task. Marxism-Leninism and Mao Zedong Thought guided the nation along this path that would lead to modernisation and the recognition of the new, strong China. As the first three decades passed, it became clear that ideological purity and revolutionary motivation did not lead to the realisation of the dream of rejuvenation. In late 1978, the Maoist revolutionary goals were replaced by the pragmatic policies that turned China into today’s economic powerhouse. How has this radical turn from revolution to economic development been realised? How has it affected China’s political, social and artistic cultures? Is China’s present Dream structurally different from the one cherished in 1949?

  12. Ways of understanding of religious delusions associated with a change of identity on the example of identification with Jesus Christ.

    Science.gov (United States)

    Dyga, Krzysztof; Stupak, Radosław

    2018-02-28

    Identification with Christ among psychiatric patients is an example of a complex and multifaceted phenomenon. As a delusion it includes a misidentification (change of identity) in the layer of content and, usually, grandiosity and/or paranoid traits in the formal aspect. What is more, it fits in the category of religious delusions, which are perhaps the most controversial type of delusions and as such require special sensitivity as well as knowledge beyond psychology or psychiatry. The aim of the articleis to show the phenomenon of identification with Christ among psychiatric patients, taking into account different ways of its explaining and understanding. Papers relating to the topic, both theoretical considerations and case studies, found in the EBSCO database were analyzed. Searching for the articles the following key words were used: identity, identification, delusion, Jesus/Christ/Messiah, psychosis, schizophrenia. The analysis included all (actually not numerous) articles except for the one linked to cognitive approach which did not significantly contribute to the issue. Given the multiplicity of ways of explaining and understanding the experience of identification with the figure of the Messiah, it seems to be a mistake to hold both objectivist and one-sided, based on one theory, attitude towards it. Such an experience should be recognized in the context of the history of patient's life and the all possible mechanisms leading to its occurrence, as well as the meanings hidden beneath the symptom, should be take into account. It is also important to be well-oriented in the system of religious beliefs and spiritual needs of the patient.

  13. Understanding mechanisms of rarity in pteridophytes: competition and climate change threaten the rare fern Asplenium scolopendrium var. americanum (Aspleniaceae).

    Science.gov (United States)

    Testo, Weston L; Watkins, James E

    2013-11-01

    Understanding the ecology of rare species can inform aspects of conservation strategies; however, the mechanisms of rarity remain elusive for most pteridophytes, which possess independent and ecologically distinct gametophyte and sporophyte generations. To elucidate factors contributing to recent declines of the rare fern Asplenium scolopendrium var. americanum, we studied the ecology and ecophysiology of its gametophyte generation, focusing on responses to competition, temperature, and water stress. Gametophytes of A. scolopendrium var. americanum, its widespread European relative A. scolopendrium var. scolopendrium, and five co-occurring fern species were grown from spores. Gametophytes were grown at 20°C and 25°C, and germination rates, intra- and interspecific competition, desiccation tolerance, and sporophyte production were determined for all species. Gametophytes of A. scolopendrium var. americanum had the lowest rates of germination and sporophyte production among all species studied and exhibited the greatest sensitivity to interspecific competition, temperature increases, and desiccation. Mature gametophytes of A. scolopendrium var. americanum grown at 25°C were 84.6% smaller than those grown at 20°C, and only 1.5% produced sporophytes after 200 d in culture. Similar responses were not observed in other species studied. The recent declines and current status of populations of A. scolopendrium var. americanum are linked to its gametophyte's limited capacity to tolerate competition and physiological stress linked to climate change. This is the first study to develop a mechanistic understanding of rarity and decline in a fern and demonstrates the importance of considering the ecology of the gametophyte in plants with independent sporophyte and gametophyte generations.

  14. Toward a mechanistic understanding of human-induced rapid environmental change: A case study linking energy development, avian nest predation, and predators

    Science.gov (United States)

    Hethcoat, Matthew G.; Chalfoun, Anna D.

    2015-01-01

    Demographic consequences of human-induced rapid environmental change (HIREC) have been widely documented for many populations. The mechanisms underlying such patterns, however, are rarely investigated and yet are critical to understand for effective conservation and management.

  15. Understanding the Relationship between Social Change and Its Impacts: The Experience of Rural Land Use Change in South-Eastern Australia

    Science.gov (United States)

    Williams, Kathryn J. H.; Schirmer, Jacki

    2012-01-01

    This study investigated socio-economic impacts of land use change, giving explicit attention to the relationships between independently observed land use change and associated socio-economic changes, perceived land use change and socio-economic change, attributed cause of change, and experienced impacts of change. Using a case study region in…

  16. Understanding The Process Of Strategic Change From A Structurational And Cognitive Perspective: Case Study Of The Users Of A New Technology

    OpenAIRE

    Slocum, Alesia

    2007-01-01

    How does strategic change happen, and how is it understood around technology? This ethnographic research has sought to better understand this process, from a structurational, cognitive and practice perspective. Researchers have shown that change is a continuous and ongoing process (Tsoukas and Chia, 2002; Weick and Quinn, 1999), while others have shown that change, while not determinate, can be intentional and directed to a large extent by change agents in practice (Balogun ...

  17. Bridging the Gap between Scientific and Indigenous knowledge to Better Understand Social Impacts of Changing Rainfall Regimes

    Science.gov (United States)

    Lynch, A. H.; Joachim, L.; Zhu, X.; Hammer, C.; Harris, M.; Griggs, D.

    2011-12-01

    The Murray-Darling Basin incorporates Australia's three longest rivers and is important for an agricultural industry worth more than $9 billion per annum, a rich biodiversity of habitat and species, and the very life of its traditional owners. The complex and sometimes enigmatic relationships between modes of variability and Australian regional rainfall distribution means that reliable projections of future water availability remain highly uncertain. Persistent drought, with associated heat stress and high fire danger, and episodic flooding rains present further challenges. Indeed, recent extremes likely herald a tipping point for the communities and ecosystems that rely on the river system. The Barmah-Millewa region in the Murray-Darling Basin is the heart of Yorta Yorta Traditional Tribal Lands. The Yorta Yorta continue to assert their inherent rights to country and have shown through oral, documentary and material evidence, that their social, spiritual, economic and cultural links with country have never been broken. Current water policy and practice, highly contested community consultation processes, cross-border governance issues and a changing social landscape create in this region a microcosm for understanding the complex demands of economic, environmental and cultural security along the Murray-Darling Basin as the climate changes. New approaches to bridging the gap between scientific and Indigenous epistemologies have emerged in recent years, including for example ecosystem-based adaptation (Vignola et al. 2009) and the analysis of cultural water flows (Weir 2010). The potential for innovation using these approaches has informed a study that investigates how the deep knowledge of country of the Yorta Yorta people can be combined with state of the art climate science to develop a better understanding of the competing demands on water resources in the Barmah-Millewa region now and in the future. An important dimension of this collaborative work with the Yorta

  18. Validity of marti’s thought in the cuban revolutionary sport philosophy

    Directory of Open Access Journals (Sweden)

    María de Lourdes Rodríguez-Pérez

    2013-12-01

    Full Text Available On José Martí long pilgrimage around the world, nothing was estranging for him. Nobody as he knew how to describe with so much beauty, emotion and analytic Revista electrónica de Ciencia y Tecnología en la Cultura Física vision the facts and the environment that surrounded him. In the informative journalistic branch he covered, among other things, reports with sport traits. It is highlighted the correct relationship that he found between the physical exercise and the mental health offering in his chronicles an appropriate valuation of the Physical Culture social necessity. Martí was ahead to the campaign that today it is carried out against the sedentary lifestyle and the physical inactivity when he praised the importance of the exercise in the man's life. His experience together with the journalistic profession that he exercised during long years, qualified him to emit concepts regarding to the scientific content of the physical culture, not exempt of aesthetic and humane valuation, studying the man like a biological, psychological and social entity, thought that maintains today a full validity. The aspects related with the sport and the physical education previously referred are analyzed and examined in the work through textual appointments of the chronicles written by the apostle, which have connections with some Fidel Castro’s statements expressed on his speeches about the importance of the sport and it characteristics in the revolutionary stage in which its reflected the validity o The Teacher’s ideas.

  19. Evolutionistic or revolutionary paths? A PACS maturity model for strategic situational planning.

    Science.gov (United States)

    van de Wetering, Rogier; Batenburg, Ronald; Lederman, Reeva

    2010-07-01

    While many hospitals are re-evaluating their current Picture Archiving and Communication System (PACS), few have a mature strategy for PACS deployment. Furthermore, strategies for implementation, strategic and situational planning methods for the evolution of PACS maturity are scarce in the scientific literature. Consequently, in this paper we propose a strategic planning method for PACS deployment. This method builds upon a PACS maturity model (PMM), based on the elaboration of the strategic alignment concept and the maturity growth path concept previously developed in the PACS domain. First, we review the literature on strategic planning for information systems and information technology and PACS maturity. Secondly, the PMM is extended by applying four different strategic perspectives of the Strategic Alignment Framework whereupon two types of growth paths (evolutionistic and revolutionary) are applied that focus on a roadmap for PMM. This roadmap builds a path to get from one level of maturity and evolve to the next. An extended method for PACS strategic planning is developed. This method defines eight distinctive strategies for PACS strategic situational planning that allow decision-makers in hospitals to decide which approach best suits their hospitals' current situation and future ambition and what in principle is needed to evolve through the different maturity levels. The proposed method allows hospitals to strategically plan for PACS maturation. It is situational in that the required investments and activities depend on the alignment between the hospital strategy and the selected growth path. The inclusion of both strategic alignment and maturity growth path concepts make the planning method rigorous, and provide a framework for further empirical research and clinical practice.

  20. A New Model Hierarchy to Understand the Impact of Radiation and Convection on the Extratropical Circulation Response to Climate Change

    Science.gov (United States)

    Tan, Z.; Shaw, T.

    2017-12-01

    State-of-the-art climate models exhibit a large spread in the magnitude of projected poleward jet shift and Hadley cell expansion in response to warming. Interestingly, some idealized gray radiation models with simplified convective schemes produce an equatorward jet shift in response to warming. In order to understand the impact of radiation and convection on the circulation response and resolve the discrepancies across the model hierarchy, we introduce a new model radiation-convection hierarchy. The hierarchy spans idealized (gray) through sophisticated (RRTMG) radiation, and idealized (Betts-Miller) through sophisticated (eddy-diffusivity mass-flux scheme) convection schemes in the same general circulation model. It is used to systematically explore the impact of radiation and convection on the extratropical circulation response to climate change independent of mean surface temperature and meridional temperature gradient responses. With a gray radiation scheme, the jet stream shift depends on the prescribed stratospheric optical depth, which controls the climatological jet regime. A large optical depth leads to a split jet and an equatorward shift. A small optical depth leads to a poleward shift. The different shifts are connected to the vertical extent of tropical long wave cooling that impacts the subtropical jet and Hadley circulation. In spite of these sensitivities, the storm track position, defined by the meridonal eddy heat flux and moist static energy flux maxima, shifts robustly poleward. In contrast to gray radiation, with a comprehensive radiation scheme, the jet and storm track shift robustly poleward irrespective of radiative assumptions (clear sky versus cloudy sky, ozone versus no ozone). This response is reproduced by adding more spectral bands and including the water vapor feedback in the gray scheme. Dynamical sensitivities to convective assumption are also explored. Overall the new hierarchy highlights the importance of radiative and

  1. Health promotion in the trucking setting: Understanding Dutch truck drivers' road to healthy lifestyle changes.

    Science.gov (United States)

    Boeijinga, Anniek; Hoeken, Hans; Sanders, José

    2016-10-17

    The working environment, the nature of the work, and the characteristics of truck drivers as a social group typically pose great challenges for the truck drivers' health and health promotion activities aiming to improve it. The purpose was to obtain a better understanding of (a) Dutch truck drivers' perceptions of health and lifestyle themes, and (b) the challenges they experience in their pursuit of a more healthy lifestyle, as a guiding framework for the development of health interventions targeting this occupational group. In this qualitative study, we conducted and analyzed 20 semi-structured interviews and seven cases of participant observations with Dutch truck drivers. Grounded theory was used to analyze the data. Our findings illustrate that Dutch truck drivers wish to improve their lifestyle but have unproductive associations with concepts of healthy living as well as a tendency to downplay their health risks. In addition, they experience barriers within their work and personal environment that prevent them from translating their intentions into actual lifestyle changes. Based on the insights derived from the interviews, we discuss recommendations for the development of more effective health promotion interventions for truck drivers.

  2. Mainstreaming Climate Change: Recent and Ongoing Efforts to Understand, Improve, and Expand Consideration of Climate Change in Federal Water Resources Planning

    Science.gov (United States)

    Ferguson, I. M.; McGuire, M.; Broman, D.; Gangopadhyay, S.

    2017-12-01

    The Bureau of Reclamation is a Federal agency tasked with developing and managing water supply and hydropower projects in the Western U.S. Climate and hydrologic variability and change significantly impact management actions and outcomes across Reclamation's programs and initiatives, including water resource planning and operations, infrastructure design and maintenance, hydropower generation, and ecosystem restoration, among others. Planning, design, and implementation of these programs therefore requires consideration of future climate and hydrologic conditions will impact program objectives. Over the past decade, Reclamation and other Federal agencies have adopted new guidelines, directives, and mandates that require consideration of climate change in water resources planning and decision making. Meanwhile, the scientific community has developed a large number of climate projections, along with an array of models, methods, and tools to facilitate consideration of climate projections in planning and decision making. However, water resources engineers, planners, and decision makers continue to face challenges regarding how best to use the available data and tools to support major decisions, including decisions regarding infrastructure investments and long-term operating criteria. This presentation will discuss recent and ongoing research towards understanding, improving, and expanding consideration of climate projections and related uncertainties in Federal water resources planning and decision making. These research efforts address a variety of challenges, including: How to choose between available climate projection datasets and related methods, models, and tools—many of which are considered experimental or research tools? How to select an appropriate decision framework when design or operating alternatives may differ between climate scenarios? How to effectively communicate results of a climate impacts analysis to decision makers? And, how to improve

  3. Using MODIS data for understanding changes in seagrass meadow health: a case study in the Great Barrier Reef (Australia).

    Science.gov (United States)

    Petus, Caroline; Collier, Catherine; Devlin, Michelle; Rasheed, Michael; McKenna, Skye

    2014-07-01

    Stretching more than 2000 km along the Queensland coast, the Great Barrier Reef Marine Park (GBR) shelters over 43,000 square km of seagrass meadows. Despite the status of marine protected area and World Heritage listing of the GBR, local seagrass meadows are under stress from reduced water quality levels; with reduction in the amount of light available for seagrass photosynthesis defined as the primary cause of seagrass loss throughout the GBR. Methods have been developed to map GBR plume water types by using MODIS quasi-true colour (hereafter true colour) images reclassified in function of their dominant colour. These data can be used as an interpretative tool for understanding changes in seagrass meadow health (as defined in this study by the seagrass area and abundance) at different spatial and temporal scales. We tested this method in Cleveland Bay, in the northern GBR, where substantial loss in seagrass area and biomass was detected by annual monitoring from 2007 to 2011. A strong correlation was found between bay-wide seagrass meadow area and biomass and exposure to turbid Primary (sediment-dominated) water type. There was also a strong correlation between the changes of biomass and area of individual meadows and exposure of seagrass ecosystems to Primary water type over the 5-year period. Seagrass meadows were also grouped according to the dominant species within each meadow, irrespective of location within Cleveland Bay. These consolidated community types did not correlate well with the exposure to Primary water type, and this is likely to be due to local environmental conditions with the individual meadows that comprise these groupings. This study proved that remote sensing data provide the synoptic window and repetitivity required to investigate changes in water quality conditions over time. Remote sensing data provide an opportunity to investigate the risk of marine-coastal ecosystems to light limitation due to increased water turbidity when in situ

  4. Understanding how pain education causes changes in pain and disability: protocol for a causal mediation analysis of the PREVENT trial.

    Science.gov (United States)

    Lee, Hopin; Moseley, G Lorimer; Hübscher, Markus; Kamper, Steven J; Traeger, Adrian C; Skinner, Ian W; McAuley, James H

    2015-07-01

    Pain education is a complex intervention developed to help clinicians manage low back pain. Although complex interventions are usually evaluated by their effects on outcomes, such as pain or disability, most do not directly target these outcomes; instead, they target intermediate factors that are presumed to be associated with the outcomes. The mechanisms underlying treatment effects, or the effect of an intervention on an intermediate factor and its subsequent effect on outcome, are rarely investigated in clinical trials. This leaves a gap in the evidence for understanding how treatments exert their effects on outcomes. Mediation analysis provides a method for identifying and quantifying the mechanisms that underlie interventions. To determine whether the effect of pain education on pain and disability is mediated by changes in self-efficacy, catastrophisation and back pain beliefs. Causal mediation analysis of the PREVENT randomised controlled trial. Two hundred and two participants with acute low back pain from primary care clinics in the Sydney metropolitan area. Participants will be randomised to receive either 'pain education' (intervention group) or 'sham education' (control group). All outcome measures (including patient characteristics), primary outcome measures (pain and disability), and putative mediating variables (self-efficacy, catastrophisation and back pain beliefs) will be measured prior to randomisation. Putative mediators and primary outcome measures will be measured 1 week after the intervention, and primary outcome measures will be measured 3 months after the onset of low back pain. Causal mediation analysis under the potential outcomes framework will be used to test single and multiple mediator models. A sensitivity analysis will be conducted to evaluate the robustness of the estimated mediation effects on the influence of violating sequential ignorability--a critical assumption for causal inference. Mediation analysis of clinical trials can

  5. Understanding the impacts of climate change and human activities on streamflow: a case study of the Soan River basin, Pakistan

    Science.gov (United States)

    Shahid, Muhammad; Cong, Zhentao; Zhang, Danwu

    2017-09-01

    Climate change and land use change are the two main factors that can alter the catchment hydrological process. The objective of this study is to evaluate the relative contribution of climate change and land use change to runoff change of the Soan River basin. The Mann-Kendal and the Pettit tests are used to find out the trends and change point in hydroclimatic variables during the period 1983-2012. Two different approaches including the abcd hydrological model and the Budyko framework are then used to quantify the impact of climate change and land use change on streamflow. The results from both methods are consistent and show that annual runoff has significantly decreased with a change point around 1997. The decrease in precipitation and increases in potential evapotranspiration contribute 68% of the detected change while the rest of the detected change is due to land use change. The land use change acquired from Landsat shows that during post-change period, the agriculture has increased in the Soan basin, which is in line with the positive contribution of land use change to runoff decrease. This study concludes that aforementioned methods performed well in quantifying the relative contribution of land use change and climate change to runoff change.

  6. Mitigating climate change through the understanding of Nitrous Oxide (N2O) consumption processes in peat lands

    Science.gov (United States)

    Akrami, N.; Barker, X. Z.; Horwath, W. R.

    2017-12-01

    Nitrous Oxide (N2O) with global warming potential of 298 over a 100-year horizon is one of the most potent green house gases. In the United States, agriculture share to N2O emissions is over 70%. Peat lands, however, are being considered as both sources and sinks of greenhouse gases. N2O emissions are a product of both production and consumption processes. However, there is still a lack of understanding of N2O consumption processes in soils. In this work, the potential of re-wetted peat lands planted to rice in Sacramento-San Joaquin Delta, California, to act as a potential sink for N2O is being evaluated. Four peat land soils with 1%, 5%, 11% and 23% of organic carbon have been anaerobically incubated with different water contents (15%, 30%, 50%, 75% and 100% of their water holding capacity). 15N-N2O gas has been injected to the headspace of experiment jars and the production and consumption rate of 15N-N2O, 15N-N2 and production rate of Carbon Dioxide (CO2) and Methane (CH4) along with dissolved Nitrate (NO3-), Nitrite (NO2-), Ammonium (NH4+), Iron (II) and Iron (III) concentration has been quantified. Our results show promising N2O consumption rates under high carbon content and relatively high water content treatments. This research introduces organic carbon and water content as two major criteria in N2O consumption processes in peat lands that make it a potential hotspot for climate changes mitigation through adopting effective management practices to decrease greenhouse gas emissions.

  7. Teaching Teaching & Understanding Understanding

    DEFF Research Database (Denmark)

    2006-01-01

    "Teaching Teaching & Understanding Understanding" is a 19-minute award-winning short-film about teaching at university and higher-level educational institutions. It is based on the "Constructive Alignment" theory developed by Prof. John Biggs. The film delivers a foundation for understanding what...

  8. Active Learning Session Based on Didactical Engineering Framework for Conceptual Change in Students' Equilibrium and Stability Understanding

    Science.gov (United States)

    Canu, Michael; Duque, Mauricio; de Hosson, Cécile

    2017-01-01

    Engineering students on control courses lack a deep understanding of equilibrium and stability that are crucial concepts in this discipline. Several studies have shown that students find it difficult to understand simple familiar or academic static equilibrium cases as well as dynamic ones from mechanics even if they know the discipline's criteria…

  9. Learning-Related Changes in Adolescents' Neural Networks during Hypothesis-Generating and Hypothesis-Understanding Training

    Science.gov (United States)

    Lee, Jun-Ki; Kwon, Yongju

    2012-01-01

    Fourteen science high school students participated in this study, which investigated neural-network plasticity associated with hypothesis-generating and hypothesis-understanding in learning. The students were divided into two groups and participated in either hypothesis-generating or hypothesis-understanding type learning programs, which were…

  10. Smart medicine: how the changing role of doctors will revolutionize health care

    National Research Council Canada - National Science Library

    Hanson, William, M.D

    2011-01-01

    .... In Smart Medicine, William Hanson brings to life the fascinating true world of doctors and nurses and reveals the revolutionary changes that will soon be sweeping through the medical community...

  11. About the science-theoretical measuring of history of revolutionary shocks in Russia (to the 100 year of February and October, 1917

    Directory of Open Access Journals (Sweden)

    Andrey V. Ishin

    2017-01-01

    Full Text Available The article is devoted the comprehension of the science-theoretical tool of research of revolutionary shocks in Russia. The 100-years-old anniversary of revolutionary shocks in Russia pulls out before researchers the vital task of complex comprehension of reasons, character and consequences of revolution. Scientific tasks which stood before the scientists of soviet epoch lay mainly inplane illumination of event of revolution and Civil war as displays of fight of «leading revolutionary class» — proletariat at the head with bolshevist communist party with «regressive classes» — bourgeoisie, squires, clergy, the «kulak». Within the framework of this main approach, researchers succeeded to form the fully integral scientific picture of social and political conflict of 1917-1922 years, on the whole to expose his motive forces, leading political actors, to trace the dynamics of events.However and presently to a full degree the task of comprehensive scientific analysis of structural-functional features of becoming and evolution of organs of power saves the actuality, which functioned within the framework of the different political modes, including modes of antibolshevist orientation. The important element of search is an exposure of specific of mutual relations of public institutions, basic directions of policy, historical factors which stipulated acceptance and practical realization of important administrative decisions.Іnstitucional approach must organically complement dominant to this day in scientific literature historical-event approach. Institucional approach consists in that a look to the social and political process is inplane not «from» (as in the historical-event measuring outside, and, vice versa, «from within». In obedience to this approach, research attention applies foremost on subsoil and on organization of administrative mechanisms, internal logic of acceptance both key and, on the face of it, second-rate decisions

  12. Building a democratic education. The Teacher Training College Model in times of revolutionary crisis (1974-1976

    Directory of Open Access Journals (Sweden)

    Luís Mota

    2015-05-01

    Full Text Available The present paper attempts to analyze the model and meaning of the reform of ordinary primary education, its ends and goals, and to address the ideological debate and clashes present in Teacher Training Colleges during the Ongoing Revolutionary Process (PREC. Experimental times of «pedagogical experiences», of the democratic construction of education, supported by a logic of equal opportunities and openness and intervention in the community, at a time when the educational system received the mandate to democratize success and combat social inequalities (Stoer, Stoleroff, Correia, 1990. Based on the triangulation of information (Denzin and Lincoln, 2000, our analysis focuses on the stakeholders’ discourses published by media specialized in education and teaching, or other, using anamnesis, oral accounts collected through interviews, and the few (still existing information sources. During the ideological debate and clash, two trends of the revolutionary process competed, that of the basic dynamics and of instrumentalisation. In the context of Teacher Training Colleges, the latter prevailed. It formed a centralised vision of the revolutionary process by fostering a mobilising dynamics, from the centre to the periphery, using the dimensions of academic knowledge, ideological principles and techniques for organising society following the ideological model established. It captured the strength and energy of the basic dynamics, either by outlining first the sense of mobilisation or assessing the propriety of the proposals arising from the mobilisation and adjusting them to its purposes. How to reference this article Mota, L., & Ferreira, A. G. (2015. La construcción de una educación democrática. Las escuelas de magisterio primario en tiempos de crisis revolucionaria (1974-1976. Espacio, Tiempo y Educación, 2(2, 265-288. doi: http://dx.doi.org/10.14516/ete.2015.002.002.013

  13. An Interpretation of the Revolutionary Proyect of Cornelius Castoriadis against the Economic Crisis: Autonomy, Politics and Democracy

    Directory of Open Access Journals (Sweden)

    Carlos Tapia

    2017-11-01

    Full Text Available The economic crisis that began in 2008 has shown a deep social crisis that reflects the progressive unembeddednes of individual from society, promoting the emergence of social alternatives that sacrifice freedom in exchange for security. This article presents an interpretation of the revolutionary project of Cornelius Castoriadis as an alternative to the current liberal democracy, able to face social crisis by placing society itself as a central element in their own construction. The emergence of a lucid and thoughtful individual able to develop a conscious political action drives towards individual and social autonomy, building a democratic regime that involves the combination of freedom and equality.

  14. Understanding Technology?

    Directory of Open Access Journals (Sweden)

    Erik Bendtsen

    2016-11-01

    Full Text Available We are facing radical changes in our ways of living in the nearest future. Not necessarily of our own choice, but because tchnological development is moving so fast, that it will have still greater impact on many aspects of our lives. We have seen the beginnings of that change within the latest 35 years or so, but according to newest research that change will speed up immensely in the nearest years to come. The impact of that change or these changes will affect our working life immensely as a consequence of automation. How these changes are brought about and which are their consequences in a broad sense is being attempted to be understood and guessed by researchers. No one knows for sure, but specific patterns are visible. This paper will not try to guess, what will come, but will rather try to understand the deepest ”nature” of technology in order to understand the driving factors in this development: the genesis of technology in a broad sense in order to contibute to the understanding of the basis for the expected development.

  15. Argumentation as a Strategy for Increasing Preservice Teachers' Understanding of Climate Change, a Key Global Socioscientific Issue

    Science.gov (United States)

    Lambert, Julie L.; Bleicher, Robert E.

    2017-01-01

    Findings of this study suggest that scientific argumentation can play an effective role in addressing complex socioscientific issues (i.e. global climate change). This research examined changes in preservice teachers' knowledge and perceptions about climate change in an innovative undergraduate-level elementary science methods course. The…

  16. Mental hygiene movement as a (r)evolutionary trend in public health in interwar Kaunas and Vilnius from 1918 to 1939.

    Science.gov (United States)

    Žalnora, Aistis; Miežutavičiūtė, Vitalija

    2016-01-01

    The health care system of the interwar period is distinguished by its revolutionary attempts to overcome social diseases and social hardships in general. In the researches published after the Second World War, different and in some cases even contradicting ideas on mental hygiene and eugenics were mixed together and were associated - almost exclusively - with the Nazi's racist ideology, totalitarian, or authoritarian regimes. The assessments of social-medical policy of the interwar period in the Baltic region also became rather one-sided. Felder's recent study (1) gives the impression that changes in psychiatry in Lithuania were caused by the Nazi's eugenics as a single agent. However, there were other factors. One of the most significant ones was the mental hygiene movement that will be discussed in this paper. In this research we used descriptive and comparative methods. After the First World War, the problem of treatment of the mentally ill was a medical and a social issue that required a completely new approach both in Lithuania and in Vilnius. The most notable manifestation of such a new attitude in psychiatry was a mental hygiene movement. University scientists in Vilnius and Kaunas were discussing issues of mental hygiene. The mental hygiene movement of the early 20th century played an important role in the later development in psychiatry and medical sciences. The ideas published by the medical doctors in Kaunas and Vilnius were partly characteristic of the interwar period, although some of them went far ahead of their times.

  17. The Assault on the Citadel: Reflections on a Quarter Century of Change in the Relationships Between the Student and the University.

    Science.gov (United States)

    Reidhaar, Donald L.

    1985-01-01

    The revolutionary changes in the relationship between students and their colleges and the role of court litigation in crystallizing or bringing about social, political, and educational change are discussed. (MSE)

  18. Understanding Perceptions of Climate Change, Priorities, and Decision-Making among Municipalities in Lima, Peru to Better Inform Adaptation and Mitigation Planning.

    Science.gov (United States)

    Siña, Mariella; Wood, Rachel C; Saldarriaga, Enrique; Lawler, Joshua; Zunt, Joseph; Garcia, Patricia; Cárcamo, César

    2016-01-01

    Climate change poses multiple risks to the population of Lima, the largest city and capital of Peru, located on the Pacific coast in a desert ecosystem. These risks include increased water scarcity, increased heat, and the introduction and emergence of vector-borne and other climate sensitive diseases. To respond to these threats, it is necessary for the government, at every level, to adopt more mitigation and adaptation strategies. Here, focus groups were conducted with representatives from five Lima municipalities to determine priorities, perception of climate change, and decision-making processes for implementing projects within each municipality. These factors can affect the ability and desire of a community to implement climate change adaptation and mitigation strategies. The results show that climate change and other environmental factors are of relatively low priority, whereas public safety and water and sanitation services are of highest concern. Perhaps most importantly, climate change is not well understood among the municipalities. Participants had trouble distinguishing climate change from other environmental issues and did not fully understand its causes and effects. Greater understanding of what climate change is and why it is important is necessary for it to become a priority for the municipalities. Different aspects of increased climate change awareness seem to be connected to having experienced extreme weather events, whether related or not to climate change, and to higher socioeconomic status.

  19. Understanding Changes in the Distribution of Household Incomes in New Zealand Between 1983-86 and 1995-98

    OpenAIRE

    Dean Hyslop; Dave Maré

    2001-01-01

    This paper presents an analysis of changes in the distribution of gross household income and income inequality over the period 1983–1998. The analysis applies a semiparametric approach to study the effects of changes in the distribution of household types, and changes in National Superannuation (old age pension), household socio-demographic attributes and employment outcomes, and in the “economic returns” to such attributes and employment outcomes on the distribution of income, and uses kerne...

  20. Square-Toed Boots and Felt Hats: Irish Revolutionaries and the Invasion of Canada (1848-1871

    Directory of Open Access Journals (Sweden)

    Marta Ramón-García

    2010-03-01

    Full Text Available The Fenian movement was born in 1858 as an alliance between the Irish Republican Brotherhood, a revolutionary secret society, and the Fenian Brotherhood, an Irish-American organisation intended to supply this society with funds and trained officers. This was not the first time that Irish nationalists on both sides of the Atlantic had tried to cooperate, but it was the first time that there was a steady arrangement in place. The Fenian partnership was extremely successful on the surface, but it was undermined by fundamental differences in customs, political attitudes and ultimate goals between Irish and American Fenians. The clearest evidence of these differences was afforded by the Fenian Brotherhood’s successive attempts to invade Canada between 1866 and 1871. As military episodes the Canadian raids were negligible; as Irish revolutionary attempts they seem absurd. However, they were a perfectly coherent manifestation of the Irish-American “hyphenated identity”. The present article traces the parallel evolution of the Irish Republican Brotherhood and the Fenian Brotherhood up to 1866, and reconstructs the cultural and political reasons for the revival of the Canadian scheme, the ensuing split in the Fenian Brotherhood, and the final collapse of the Fenian alliance.

  1. Simplifying mental math: Changing how added sugars are displayed on the nutrition facts label can improve consumer understanding.

    Science.gov (United States)

    Khandpur, Neha; Graham, Dan J; Roberto, Christina A

    2017-07-01

    Proposed variations to Nutrition Facts Labels (NFL) have included the display of added sugars (AS) content, but its impact on consumer understanding is poorly understood. To examine the degree to which different formats for displaying AS influence consumer understanding, perceptions, and purchase intentions. Randomized-controlled online experiment. A sample of 2509 U.S adults. Participants were randomized to 1 of 8 conditions and viewed 10 food or beverage images with either: (1) no label (control); (2) the current NFL (without AS); (3) the proposed NFL without AS; or the proposed NFL with AS in (4) grams, (5) grams and teaspoons, (6) grams and percent Daily Value (%DV), (7) grams with high/medium/low text, or (8) grams with high/medium/low text and %DV. ANCOVAs compared scores on quizzes that assessed the accuracy of judgments about AS, overall nutrition understanding and purchase intentions. Presenting AS in grams plus high/medium/low text with and without %DV led to the highest AS understanding scores (85% and 83% correct, respectively) compared to 70% correct when AS was not on the label or was displayed in grams only (74% correct). Displaying AS in teaspoons did not significantly improve understanding beyond grams alone. Consumers were best able to determine which of two products was healthier when AS was presented as %DV (68% correct) versus displayed in grams alone (60% correct), but %DV did not differ from high/medium/low text or teaspoons. None of the labels influenced purchase intentions relative to no label. Displaying AS on the NFL in grams with high/medium/low text, %DV, or the combination of the two, improved consumer understanding more than presenting it in grams or teaspoons. Copyright © 2017 Elsevier Ltd. All rights reserved.

  2. Navigating to the Future: Understanding Common Tasks in a Multi-Campus Environment in the Dramatically Changing Acquisition World

    Science.gov (United States)

    Bock, Julia; Burgos-Mira, Rosemary

    2010-01-01

    In the context of a diverse, multi-campus university, this study discusses historical factors and recent changes in scholarly communication and the economic impact of these changes as we seek to forge stronger cooperation among our campuses. After consulting literature, the authors found that issues relating to acquisitions of multi-campus…

  3. Why a German "Oh" Is Not Necessarily an English "Oh": Showing Understanding and Emotions with Change-of-State Tokens

    Science.gov (United States)

    Linneweber, Judith

    2016-01-01

    This paper presents a two-session teaching unit on German change-of-state tokens such as "oh," "ach" and "achso." Goal is to teach students the appropriate reaction through change-of-state tokens in various situations. Students are provided with authentic data based on empirical research in conversation analysis (CA).…

  4. Understanding the Role of Culture and Communication in Implementing Planned Organizational Change: The Case of Compstat in Police Organizations

    Science.gov (United States)

    Yuksel, Yusuf

    2013-01-01

    Despite the popularity of planned change efforts, the failure rates of implementation are as high as 50 to 70 percent (Lewis & Seibold, 1998). While these efforts are affected by technical issues, the organizations' approach to change, structure, technological capabilities, and organizational culture and communication practices are…

  5. The Effect of the Conceptual Change Oriented Instruction through Cooperative Learning on 4th Grade Students' Understanding of Earth and Sky Concepts

    Science.gov (United States)

    Celikten, Oksan; Ipekcioglu, Sevgi; Ertepinar, Hamide; Geban, Omer

    2012-01-01

    The purpose of this study was to compare the effectiveness of the conceptual change oriented instruction through cooperative learning (CCICL) and traditional science instruction (TI) on 4th grade students' understanding of earth and sky concepts and their attitudes toward earth and sky concepts. In this study, 56 fourth grade students from the…

  6. Changes in Pre-Service Science Teachers' Understandings After Being Involved in Explicit Nature of Science and Socioscientific Argumentation Processes

    Science.gov (United States)

    Kutluca, A. Y.; Aydin, A.

    2017-01-01

    The study explored the changes in pre-service science teachers' understanding of the nature of science and their opinions about the nature of science, science teaching and argumentation after their participation in explicit nature of science (NOS) and socioscientific argumentation processes. The participants were 56 third-grade pre-service science…

  7. Understanding the Hydrologic Response of a Coastal Plain Watershed to Forest Management and Climate Change in South Carolina, U.S.A.

    Science.gov (United States)

    J. Lu; Ge Sun; Devendra M. Amatya; S. V. Harder; Steve G. McNulty

    2006-01-01

    The hydrologic processes in wetland ecosystems are not well understood. There are also great concerns and uncertainties about the hydrologic response of wetlands to forest management and climate change. The objective of this study is to apply a hydrologic model to better understand the hydrologic processes of a low relief coastal forested watershed and its responses to...

  8. Comparison between the Understanding Levels of Boys and Girls on the Concepts of Environmental Degradation, Meteorology and Climate Change in Tanzanian Secondary Schools

    Science.gov (United States)

    Kira, Ernest S.; Komba, Sotco C.

    2015-01-01

    The study aimed to determine whether there was any significant difference in understanding levels between secondary school boys and girls on the concepts of environmental degradation, meteorology and climate change. Both structured survey and focus group discussions were used to collect information from 480 students, sampled randomly from 12…

  9. Educational Reforms as Paradigm Shifts: Utilizing Kuhnian Lenses for a Better Understanding of the Meaning of, and Resistance to, Educational Change

    Science.gov (United States)

    Irez, Serhat; Han, Cigdem

    2011-01-01

    Research acknowledges that reform efforts in education often face resistance, particularly on the part of teachers. This study attempts to get to a better understanding of the reasons of resistance to change on the teachers' side through utilizing the structure of scientific revolutions as described by Thomas Kuhn as an analogy. To this end, a…

  10. What is needed to understand feedback mechanisms from agricultural and climate changes that can alter the hydrological system and the transport of sediments and agricultural chemicals?

    Science.gov (United States)

    Coupe, Richard; Payraudeau, Sylvain; Babcsányi, Izabella; Imfeld, Gwenaël

    2015-04-01

    Modern agriculture activities are constantly changing as producers try to produce a crop, keep their soils fertile, control pests, and prevent contamination of air and water resources. Because most of the world's arable land is already in production we must become more efficient if we are to feed and clothe the world's growing population as well as do this in a sustainable manner; leaving a legacy of fertile soil and clean water resources for our descendants. The objective of this paper is to demonstrate the importance of historical datasets and of developing new strategies to understand the effects of changing agricultural systems on the environment. Scientists who study agriculture and its effects on water must constantly adapt their strategies and evaluate how changing agricultural activities impact the environment. As well as understand from historical datasets on hydrology and agriculture how a changing climate or agricultural activity such as a change in tillage method might impact the processes that determine the movement of agricultural chemicals off of the target site. The 42.7 ha Hohrain (Rouffach, Alsace, France) vineyard experimental catchment offers several examples of how scientists have used historical data from this catchment to understand how the transport of agricultural chemicals may change due to a changing climate as well as how new strategies are developed for understanding the transport of agricultural chemicals. Runoff is a major process of pesticide transport from agricultural land to downstream aquatic ecosystems. The impact of rainfall characteristics on the transport of runoff-related pesticides is crucial to understanding how to prevent or minimize their movement now, but also in understanding how climate change might affect runoff. If we understand how rainfall characteristics affect the transport of pesticides, we can use climate change models to predict how those characteristics might change in the future and be better prepared for

  11. Facilitating Conceptual Change in Understanding State of Matter and Solubility Concepts by Using 5E Learning Cycle Model

    Science.gov (United States)

    Ceylan, Eren; Geban, Omer

    2009-01-01

    The main purpose of the study was to compare the effectiveness of 5E learning cycle model based instruction and traditionally designed chemistry instruction on 10th grade students' understanding of state of matter and solubility concepts. In this study, 119 tenth grade students from chemistry courses instructed by same teacher from an Anatolian…

  12. Remote sensing change detection tools for natural resource managers: Understanding concepts and tradeoffs in the design of landscape monitoring projects

    Science.gov (United States)

    Robert E. Kennedy; Philip A. Townsend; John E. Gross; Warren B. Cohen; Paul Bolstad; Wang Y. Q.; Phyllis Adams

    2009-01-01

    Remote sensing provides a broad view of landscapes and can be consistent through time, making it an important tool for monitoring and managing protected areas. An impediment to broader use of remote sensing science for monitoring has been the need for resource managers to understand the specialized capabilities of an ever-expanding array of image sources and analysis...

  13. From the Field to the Classroom: Developing Scientifically Literate Citizens Using the Understanding Global Change Framework in Education and Citizen Science

    Science.gov (United States)

    Toupin, C.; Bean, J. R.; Gavenus, K.; Johnson, H.; Toupin, S.

    2017-12-01

    With the copious amount of science and pseudoscience reported on by non-experts in the media, it is critical for educators to help students develop into scientifically literate citizens. One of the most direct ways to help students develop deep scientific understanding and the skills to critically question the information they encounter is to bring science into their daily experiences and to contextualize scientific inquiry within the classroom. Our work aims to use a systems-based models approach to engage students in science, in both formal and informal contexts. Using the Understanding Global Change (UGC) and the Understanding Science models developed at the Museum of Paleontology at UC Berkeley, high school students from Arizona were tasked with developing a viable citizen science program for use at the Center for Alaskan Coastal Studies in Homer, Alaska. Experts used the UGC model to help students define why they were doing the work, and give context to the importance of citizen science. Empowered with an understanding of the scientific process, excited by the purpose of their work and how it could contribute to the scientific community, students whole-heartedly worked together to develop intertidal monitoring protocols for two locations while staying at Peterson Bay Field Station, Homer. Students, instructors, and scientists used system models to communicate and discuss their understanding of the biological, physical, and chemical processes in Kachemak Bay. This systems-based models approach is also being used in an integrative high school physics, chemistry, and biology curriculum in a truly unprecedented manner. Using the Understanding Global Change framework to organize curriculum scope and sequence, the course addresses how the earth systems work, how interdisciplinary science knowledge is necessary to understand those systems, and how scientists and students can measure changes within those systems.

  14. Understanding interaction effects of climate change and fire management on bird distributions through combined process and habitat models

    Science.gov (United States)

    White, Joseph D.; Gutzwiller, Kevin J.; Barrow, Wylie C.; Johnson-Randall, Lori; Zygo, Lisa; Swint, Pamela

    2011-01-01

    Avian conservation efforts must account for changes in vegetation composition and structure associated with climate change. We modeled vegetation change and the probability of occurrence of birds to project changes in winter bird distributions associated with climate change and fire management in the northern Chihuahuan Desert (southwestern U.S.A.). We simulated vegetation change in a process-based model (Landscape and Fire Simulator) in which anticipated climate change was associated with doubling of current atmospheric carbon dioxide over the next 50 years. We estimated the relative probability of bird occurrence on the basis of statistical models derived from field observations of birds and data on vegetation type, topography, and roads. We selected 3 focal species, Scaled Quail (Callipepla squamata), Loggerhead Shrike (Lanius ludovicianus), and Rock Wren (Salpinctes obsoletus), that had a range of probabilities of occurrence for our study area. Our simulations projected increases in relative probability of bird occurrence in shrubland and decreases in grassland and Yucca spp. and ocotillo (Fouquieria splendens) vegetation. Generally, the relative probability of occurrence of all 3 species was highest in shrubland because leaf-area index values were lower in shrubland. This high probability of occurrence likely is related to the species' use of open vegetation for foraging. Fire suppression had little effect on projected vegetation composition because as climate changed there was less fuel and burned area. Our results show that if future water limits on plant type are considered, models that incorporate spatial data may suggest how and where different species of birds may respond to vegetation changes.

  15. Understanding the mechanisms that change the conductivity of damaged ITO-coated polymeric films: A micro-mechanical investigation

    KAUST Repository

    Nasr Saleh, Mohamed

    2014-11-01

    Degradation from mechanical loading of transparent electrodes made of indium tin oxide (ITO) endangers the integrity of any material based on these electrodes, including flexible organic solar cells. However, how different schemes of degradation change the conductivity of ITO devices remains unclear. We propose a systematic micro-mechanics-based approach to clarify the relationship between degradation and changes in electrical resistance. By comparing experimentally measured channel crack densities to changes in electrical resistance returned by the different micro-mechanical schemes, we highlight the key role played by the residual conductivity in the interface between the ITO electrode and its substrate after delamination. We demonstrate that channel cracking alone does not explain the experimental observations. Our results indicate that delamination has to take place between the ITO electrode and the substrate layers and that the residual conductivity of this delaminated interface plays a major role in changes in electrical resistance of the degraded device. © 2014 Elsevier B.V.

  16. Understanding and changing human behaviour--antibiotic mainstreaming as an approach to facilitate modification of provider and consumer behaviour.

    Science.gov (United States)

    Stålsby Lundborg, Cecilia; Tamhankar, Ashok J

    2014-05-01

    This paper addresses: 1) Situations where human behaviour is involved in relation to antibiotics, focusing on providers and consumers; 2) Theories about human behaviour and factors influencing behaviour in relation to antibiotics; 3) How behaviour in relation to antibiotics can change; and, 4) Antibiotic mainstreaming as an approach to facilitate changes in human behaviour as regards antibiotics. Influencing human behaviour in relation to antibiotics is a complex process which includes factors like knowledge, attitudes, social norms, socio-economic conditions, peer pressure, experiences, and bio-physical and socio-behavioural environment. Further, key concepts are often perceived in different ways by different individuals. While designing and implementing projects or programmes for behavioural change with respect to antibiotics for professionals or consumers it is helpful to consider theories or models of behaviour change, e.g. the 'stages of change model', including pre-contemplation, contemplation, preparation, action, and maintenance. People in different stages of change are susceptible to different behaviour modification strategies. Application of marketing principles to 'global good', so-called 'social marketing', to improve 'welfare of the individual and society' is gaining increased attention in public health. In conclusion, just providing correct knowledge is not sufficient although it is a pre-requisite for behaviour modification in the desired direction. We can never change the behaviour of any other human, but we can facilitate for others to change their own behaviour. One possibility is to implement 'antibiotic mainstreaming' as a potentially effective way for behaviour modification, i.e. to address consequences for maintaining effective antibiotics in all activities and decisions in society.

  17. Understanding and changing human behaviour—antibiotic mainstreaming as an approach to facilitate modification of provider and consumer behaviour

    OpenAIRE

    Stålsby Lundborg, Cecilia; Tamhankar, Ashok J.

    2014-01-01

    This paper addresses: 1) Situations where human behaviour is involved in relation to antibiotics, focusing on providers and consumers; 2) Theories about human behaviour and factors influencing behaviour in relation to antibiotics; 3) How behaviour in relation to antibiotics can change; and, 4) Antibiotic mainstreaming as an approach to facilitate changes in human behaviour as regards antibiotics. Influencing human behaviour in relation to antibiotics is a complex process which includes factor...

  18. Understanding and changing human behaviour—antibiotic mainstreaming as an approach to facilitate modification of provider and consumer behaviour

    Science.gov (United States)

    Tamhankar, Ashok J.

    2014-01-01

    This paper addresses: 1) Situations where human behaviour is involved in relation to antibiotics, focusing on providers and consumers; 2) Theories about human behaviour and factors influencing behaviour in relation to antibiotics; 3) How behaviour in relation to antibiotics can change; and, 4) Antibiotic mainstreaming as an approach to facilitate changes in human behaviour as regards antibiotics. Influencing human behaviour in relation to antibiotics is a complex process which includes factors like knowledge, attitudes, social norms, socio-economic conditions, peer pressure, experiences, and bio-physical and socio-behavioural environment. Further, key concepts are often perceived in different ways by different individuals. While designing and implementing projects or programmes for behavioural change with respect to antibiotics for professionals or consumers it is helpful to consider theories or models of behaviour change, e.g. the ‘stages of change model’, including pre-contemplation, contemplation, preparation, action, and maintenance. People in different stages of change are susceptible to different behaviour modification strategies. Application of marketing principles to ‘global good’, so-called ‘social marketing’, to improve ‘welfare of the individual and society’ is gaining increased attention in public health. In conclusion, just providing correct knowledge is not sufficient although it is a pre-requisite for behaviour modification in the desired direction. We can never change the behaviour of any other human, but we can facilitate for others to change their own behaviour. One possibility is to implement ‘antibiotic mainstreaming’ as a potentially effective way for behaviour modification, i.e. to address consequences for maintaining effective antibiotics in all activities and decisions in society. PMID:24735112

  19. Pleistocene climate, phylogeny, and climate envelope models: an integrative approach to better understand species' response to climate change.

    Directory of Open Access Journals (Sweden)

    A Michelle Lawing

    Full Text Available Mean annual temperature reported by the Intergovernmental Panel on Climate Change increases at least 1.1°C to 6.4°C over the next 90 years. In context, a change in climate of 6°C is approximately the difference between the mean annual temperature of the Last Glacial Maximum (LGM and our current warm interglacial. Species have been responding to changing climate throughout Earth's history and their previous biological responses can inform our expectations for future climate change. Here we synthesize geological evidence in the form of stable oxygen isotopes, general circulation paleoclimate models, species' evolutionary relatedness, and species' geographic distributions. We use the stable oxygen isotope record to develop a series of temporally high-resolution paleoclimate reconstructions spanning the Middle Pleistocene to Recent, which we use to map ancestral climatic envelope reconstructions for North American rattlesnakes. A simple linear interpolation between current climate and a general circulation paleoclimate model of the LGM using stable oxygen isotope ratios provides good estimates of paleoclimate at other time periods. We use geologically informed rates of change derived from these reconstructions to predict magnitudes and rates of change in species' suitable habitat over the next century. Our approach to modeling the past suitable habitat of species is general and can be adopted by others. We use multiple lines of evidence of past climate (isotopes and climate models, phylogenetic topology (to correct the models for long-term changes in the suitable habitat of a species, and the fossil record, however sparse, to cross check the models. Our models indicate the annual rate of displacement in a clade of rattlesnakes over the next century will be 2 to 3 orders of magnitude greater (430-2,420 m/yr than it has been on average for the past 320 ky (2.3 m/yr.

  20. Understanding Land Cover Changes in the Italian Alps and Romanian Carpathians Combining Remote Sensing and Stakeholder Interviews

    Directory of Open Access Journals (Sweden)

    Žiga Malek

    2014-01-01

    Full Text Available In the last two decades, socio-economic changes in Europe have had a significant effect on land cover changes, but it is unclear how this has affected mountain areas. We focus on two mountain areas: the eastern Italian Alps and the Romanian Curvature Carpathians. We classified land cover from Earth observation data after 1989 by using applied remote sensing techniques. We also analyzed socio-economic data and conducted semi-structured interviews with local stakeholders. In Italy, most of the land conversion processes followed long-term trends. In Romania, they took off with the sudden political changes after 1989. In both areas, forest expansion was the biggest, but potentially not the most consequential change. More consequential changes were urbanization in Italy and small-scale deforestation in Romania, since both increased the risk of hydro-meteorological hazards. Stakeholders’ views were an added value to the spatial analysis and vice versa. For example, stakeholders’ explanations resolved the seeming contradiction of decreased economic activity and increased urbanization (Italian site, as a consequence of secondary home building. Furthermore, spatial analysis revealed that urbanization in Romania was less significant with regard to consequences for the wider human-environment system than many stakeholders thought.

  1. Affecting culture change and performance improvement in Medicaid nursing homes: the Promote Understanding, Leadership, and Learning (PULL) Program.

    Science.gov (United States)

    Eliopoulos, Charlotte

    2013-01-01

    A growing number of nursing homes are implementing culture change programming to create a more homelike environment in which residents and direct care staff are empowered with greater participation in care activities. Although nursing homes that have adopted culture change practices have brought about positive transformation in their settings that have improved quality of care and life, as well as increased resident and staff satisfaction, they represent a minority of all nursing homes. Nursing homes that serve primarily a Medicaid population without supplemental sources of funding have been limited in the resources to support such change processes. The purpose of this project was to gain insight into effective strategies to provide culture change and quality improvement programming to low-performing, under-resourced nursing homes that represent the population of nursing homes least likely to have implemented this programming. Factors that interfered with transformation were identified and insights were gained into factors that need to be considered before transformational processes can be initiated. Effective educational strategies and processes that facilitate change in these types of nursing homes were identified. Despite limitations to the study, there was evidence that the experiences and findings can be of value to other low-performing, under-resourced nursing homes. Ongoing clinical work and research are needed to refine the implementation process and increase the ability to help these settings utilize resources and implement high quality cost effective care to nursing home residents. Copyright © 2013 Mosby, Inc. All rights reserved.

  2. Online Social Systems, Social Actions, and Politics: A Narrative Analysis of the Role of Social Media in Revolutionary Political Change

    Science.gov (United States)

    Maghrabi, Rozan Omar

    2017-01-01

    One of the demonstrators during the 2011 Egyptian revolution tweeted "We use Facebook to schedule the protests, Twitter to coordinate, and YouTube to tell the world," thus acknowledging and establishing the fundamental role of social media in the political unrest and revolution against the regime in Egypt. Information Systems (IS) have…

  3. Understanding unemployment

    OpenAIRE

    Guillaume Rocheteau

    2006-01-01

    Modern economists have built models of the labor market, which isolate the market’s key drivers and describe the way these interact to produce particular levels of unemployment. One of the most popular models used by macroeconomists today is the search-matching model of equilibrium unemployment. We explain this model, and show how it can be applied to understand the way various policies, such as unemployment benefits, taxes, or technological changes, can affect the unemployment rate.

  4. Understanding how pain education causes changes in pain and disability: protocol for a causal mediation analysis of the PREVENT trial

    Directory of Open Access Journals (Sweden)

    Hopin Lee

    2015-07-01

    Discussion and significance: Mediation analysis of clinical trials can estimate how much the total effect of the treatment on the outcome is carried through an indirect path. Using mediation analysis to understand these mechanisms can generate evidence that can be used to tailor treatments and optimise treatment effects. In this study, the causal mediation effects of a pain education intervention for acute non-specific low back pain will be estimated. This knowledge is critical for further development and refinement of interventions for conditions such as low back pain.

  5. Embodied Understanding

    Directory of Open Access Journals (Sweden)

    Mark Leonard Johnson

    2015-06-01

    Full Text Available Western culture has inherited a view of understanding as an intellectual cognitive operation of grasping of concepts and their relations. However, cognitive science research has shown that this received intellectualist conception is substantially out of touch with how humans actually make and experience meaning. The view emerging from the mind sciences recognizes that understanding is profoundly embodied, insofar as our conceptualization and reasoning recruit sensory, motor, and affective patterns and processes to structure our understanding of, and engagement with, our world. A psychologically realistic account of understanding must begin with the patterns of ongoing interaction between an organism and its physical and cultural environments and must include both our emotional responses to changes in our body and environment, and also the actions by which we continuously transform our experience. Consequently, embodied understanding is not merely a conceptual/propositional activity of thought, but rather constitutes our most basic way of being in, and engaging with, our surroundings in a deep visceral manner.

  6. Degrees of Change: Understanding Academics Experiences with a Shift to Flexible Technology- Enhanced Learning in Initial Teacher Education

    Science.gov (United States)

    Kehrwald, Benjamin A.; McCallum, Faye

    2015-01-01

    The implementation of technology enhanced learning in higher education is often associated with changes to academic work. This article reports on a study of staff experiences with curriculum development and teaching in multiple modes of blended and online learning in a Bachelor of Education degree. The findings indicate that the changes…

  7. Beginning Teachers' Conceptual Understandings of Effective History Teaching: Examining the Change from "Subject Knowers" to "Subject Teachers"

    Science.gov (United States)

    Reitano, Paul; Green, Nicole C.

    2013-01-01

    This article reports the investigation of change in preservice teachers' conceptions of effective history teaching across a secondary history methods course in a postgraduate diploma of education program. Using concept mapping to plot shifts in their expressed reflections, data were obtained that indicate personal constructs of effective history…

  8. Interactive effects of air pollution and climate change on forest ecosystems in the United States: current understanding and future scenarios

    Science.gov (United States)

    Andrzej Bytnerowicz; Mark Fenn; Steven McNulty; Fengming Yuan; Afshin Pourmokhtarian; Charles Driscoll; Tom Meixner

    2013-01-01

    A review of the current status of air pollution and climate change (CC) in the United States from a perspective of their impacts on forest ecosystems is provided. Ambient ozone (O3) and nitrogen (N) deposition have important and widespread ecological impacts in U.S. forests. Effects of sulphurous (S) air pollutants and other trace pollutants have...

  9. Investigating Historic Parcel Changes to Understand Land Use Trends: A Methodology and Application for the San Pedro River Watershed

    Science.gov (United States)

    Long-term land use and land cover change, and the associated impacts, pose critical challenges to sustaining healthy communities and ecosystems. In this study, a methodology was developed to use parcel data to evaluate land use trends in southeast Arizona’s San Pedro River Water...

  10. Mixed methods approach to understanding farmer and agricultural advisor perceptions of climate change and adaptation in Vermont, United States

    Science.gov (United States)

    Rachel E. Schattman; V. Ernesto Méndez; Scott C. Merrill; Asim Zia

    2018-01-01

    The relationships among farmers' belief in climate change, perceptions of climate-related risk, and use of climate adaptation practices is a growing topic of interest in U.S. scholarship. The northeast region is not well represented in the literature, although it is highly agricultural and will likely face climaterelated risks that differ from those faced in other...

  11. Student Understanding of Climate Change: Influences of College Major and Environmental Group Membership on Undergraduate Knowledge and Mental Models

    Science.gov (United States)

    Huxster, Joanna

    2013-01-01

    A consensus has been reached within the scientific community concerning the occurrence of climate change and its anthropogenic causes. Outside of this community, however, there continues to be considerable debate and confusion surrounding the topic. The government mitigation strategies and political leadership needed for this issue will require…

  12. Systems thinking for understanding and predicting regional and local climate change effects on human health & well being: workshop process

    Science.gov (United States)

    EPA’s Systems Thinking Advisory Team (STAT) was engaged to guide a multi-disciplinary (health officials, modelers, climate change scientists, city planners, ecologists, and architects), multi-agency (EPA, CDC, State and Country officials) team in the use systems thinking, diagram...

  13. Analyzing cloud base at local and regional scales to understand tropical montane cloud forest vulnerability to climate change

    Science.gov (United States)

    Ashley E. Van Beusekom; Grizelle Gonzalez; Martha A. Scholl

    2017-01-01

    The degree to which cloud immersion provides water in addition to rainfall, suppresses transpiration, and sustains tropical montane cloud forests (TMCFs) during rainless periods is not well understood. Climate and land use changes represent a threat to these forests if cloud base altitude rises as a result of regional warming or deforestation. To establish a baseline...

  14. Can the Tools of Activity Theory Help Us in Advancing Understanding and Organisational Change in Undergraduate Medical Education?

    Science.gov (United States)

    Reid, Anne-Marie; Ledger, Alison; Kilminster, Sue; Fuller, Richard

    2015-01-01

    Continued changes to healthcare delivery in the UK, and an increasing focus on patient safety and quality improvement, require a radical rethink on how we enable graduates to begin work in challenging, complex environments. Professional regulatory bodies now require undergraduate medical schools to implement an "assistantship" period in…

  15. Monitoring and understanding changes in heat waves, cold waves, floods, and droughts in the United States: State of knowledge

    Science.gov (United States)

    Peterson, Thomas C.; Heim, Richard R.; Hirsch, Robert M.; Kaiser, Dale P.; Brooks, Harold; Diffenbaugh, Noah S.; Dole, Randall M.; Giovannettone, Jason P.; Guirguis, Kristen; Karl, Thomas R.; Katz, Richard W.; Kunkel, Kenneth E.; Lettenmaier, Dennis P.; McCabe, Gregory J.; Paciorek, Christopher J.; Ryberg, Karen R.; K Wolter, BS Silva; Schubert, Siegfried; Silva, Viviane B. S.; Stewart, Brooke C.; Vecchia, Aldo V.; Villarini, Gabriele; Vose, Russell S.; Walsh, John; Wehner, Michael; Wolock, David; Wolter, Klaus; Woodhouse, Connie A.; Wuebbles, Donald

    2013-01-01

    Weather and climate extremes have been varying and changing on many different time scales. In recent decades, heat waves have generally become more frequent across the United States, while cold waves have been decreasing. While this is in keeping with expectations in a warming climate, it turns out that decadal variations in the number of U.S. heat and cold waves do not correlate well with the observed U.S. warming during the last century. Annual peak flow data reveal that river flooding trends on the century scale do not show uniform changes across the country. While flood magnitudes in the Southwest have been decreasing, flood magnitudes in the Northeast and north-central United States have been increasing. Confounding the analysis of trends in river flooding is multiyear and even multidecadal variability likely caused by both large-scale atmospheric circulation changes and basin-scale “memory” in the form of soil moisture. Droughts also have long-term trends as well as multiyear and decadal variability. Instrumental data indicate that the Dust Bowl of the 1930s and the drought in the 1950s were the most significant twentieth-century droughts in the United States, while tree ring data indicate that the megadroughts over the twelfth century exceeded anything in the twentieth century in both spatial extent and duration. The state of knowledge of the factors that cause heat waves, cold waves, floods, and drought to change is fairly good with heat waves being the best understood.

  16. Linking sediment-charcoal records and ecological modeling to understand causes of fire-regime change in boreal forests

    Science.gov (United States)

    Linda B. Brubaker; Philip E. Higuera; T. Scott Rupp; Mark A. Olson; Patricia M. Anderson; Feng Sheng. Hu

    2009-01-01

    Interactions between vegetation and fire have the potential to overshadow direct effects of climate change on fire regimes in boreal forests of North America. We develop methods to compare sediment-charcoal records with fire regimes simulated by an ecological model, ALFRESCO (Alaskan Frame-based Ecosystem Code) and apply these methods to evaluate potential causes of a...

  17. The importance of socio-ecological system dynamics in understanding adaptation to global change in the forestry sector.

    Science.gov (United States)

    Blanco, Victor; Brown, Calum; Holzhauer, Sascha; Vulturius, Gregor; Rounsevell, Mark D A

    2017-07-01

    Adaptation is necessary to cope with or take advantage of the effects of climate change on socio-ecological systems. This is especially important in the forestry sector, which is sensitive to the ecological and economic impacts of climate change, and where the adaptive decisions of owners play out over long periods of time. Relatively little is known about how successful these decisions are likely to be in meeting demands for ecosystem services in an uncertain future. We explore adaptation to global change in the forestry sector using CRAFTY-Sweden; an agent-based model that represents large-scale land-use dynamics, based on the demand and supply of ecosystem services. Future impacts and adaptation within the Swedish forestry sector were simulated for scenarios of socio-economic change (Shared Socio-economic Pathways) and climatic change (Representative Concentration Pathways, for three climate models), between 2010 and 2100. Substantial differences were found in the competitiveness and coping ability of land owners implementing different management strategies through time. Generally, multi-objective management was found to provide the best basis for adaptation. Across large regions, however, a combination of management strategies was better at meeting ecosystem service demands. Results also show that adaptive capacity evolves through time in response to external (global) drivers and interactions between individual actors. This suggests that process-based models are more appropriate for the study of autonomous adaptation and future adaptive and coping capacities than models based on indicators, discrete time snapshots or exogenous proxies. Nevertheless, a combination of planned and autonomous adaptation by institutions and forest owners is likely to be more successful than either group acting alone. Copyright © 2017 Elsevier Ltd. All rights reserved.

  18. Investigating Changes in Student Attitudes and Understanding of Science through Participation in Citizen Science Projects in College Coursework

    Science.gov (United States)

    Cardamone, Carolin; Cobb, Bethany E.

    2018-01-01

    Over the last decade, web-based “citizen science” projects such as the Zooniverse have allowed volunteers and professional scientists to work together for the advancement of science. While much attention has been paid to the benefits to science from these new projects, less attention has been paid to their impact on the participants and, in particular, to the projects’ potential to impact students who might engage in these projects through coursework. We report on a study engaging students in introductory astronomy classes at the George Washington University and Wheelock College in an assignment in which each student individually contributed to a “physics” or “space” citizen science project of their choice, and groups of students worked together to understand and articulate the scientific purpose of a citizen science project to which they all contributed. Over the course of approximately four weeks, the students kept logs of their individual contributions to the project, and recorded a brief reflection on each of their visits (noting, for example, interesting or confusing things they might encounter along the way). The project culminated with each group delivering a creative presentation that demonstrated their understanding of both the science goals of the project and the value of their own contributions to the project. In this talk, we report on the experience of the students with the project and on an assessment of the students’ attitudes toward science and knowledge of the process of science completed before the introduction of the assignment and again at its conclusion.

  19. Conceptions and Characterization: An Explanation for the Theory-Practice Gap in Conceptual Change Theory. (Sponsored Session Strand 1 Science Learning, Understanding and Conceptual Change)

    NARCIS (Netherlands)

    Eijck, van M.W.; Czermak, Charlene M.; Duschl, Richard A.; Kyle, William C.; Sondergeld, Toni

    2009-01-01

    The theory building on conceptual change has led to the paradox that, in order to address teaching-learning processes, research yields an increasingly sophisticated output which alienates the teachers. The aim of this study is to explain the origin of this paradox. Drawing on exemplary data from a

  20. Science to support the understanding of south Texas surface-water and groundwater resources in a changing landscape

    Science.gov (United States)

    Ockerman, Darwin J.; Garcia, Travis J.; Opsahl, Stephen P.

    2012-01-01

    Against a backdrop of constant cycles of extreme hydrologic conditions ranging from oppressive droughts to life-threatening floods, the water-resource landscape of south Texas is undergoing constant change. Demands on water resources are increasing because of changes related to population growth, energy demands, agricultural practices, and other human-related activities. In south Texas, the Nueces, San Antonio, and Guadalupe River Basins cover approximately 50,000 square miles and include all or part of 45 counties. These stream systems transect the faulted and fractured carbonate rocks of the Edwards aquifer recharge zone and provide the largest sources of recharge to the aquifer. As the streams make their way to the Gulf of Mexico, they provide water for communities and ecosystems in south Texas and deliver water, sediment, and nutrients to the south Texas bays and estuaries.