WorldWideScience

Sample records for understand sustainability concepts

  1. Understanding Students' Conceptions of Sustainability

    Science.gov (United States)

    Walshe, Nicola

    2008-01-01

    There has recently been significant emphasis placed on environmental education through, for example, the UN's Decade of Education for Sustainable Development. Despite this, there is still considerable debate within the literature as to how the aims of environmental education can be achieved within schools. It seems likely that if there is a lack…

  2. Understanding Economic and Management Sciences Teachers' Conceptions of Sustainable Development

    Science.gov (United States)

    America, Carina

    2014-01-01

    Sustainable development has become a key part of the global educational discourse. Education for sustainable development (ESD) specifically is pronounced as an imperative for different curricula and regarded as being critical for teacher education. This article is based on research that was conducted on economic and management sciences (EMS)…

  3. THE INDONESIA BEST SUSTAINABILITY REPORT AS A STUDENT’S ACCOUNTING TOOL TO UNDERSTAND CSR CONCEPT

    Directory of Open Access Journals (Sweden)

    Ranto P. Sihombing

    2015-10-01

    Full Text Available Guideline Reporting Initiatives has long become the guidance for making sustainability report (SR.  It contains the company’s Corporate Social Responsibilities (CSR activities. By using these guidelines, the CSR activities of the company can be focused on and directed to minimize the negative impact. CSR activities will be grouped into three bottom lines of activities that are profit, people and planet. SR analyzed were the ones from companies associated with the exploration of natural resources which are the best in publishing the reports and conducting the CSR programs. The data obtained from questionnaire and interviews of accounting students from environmental and social accounting class in which there are also students from Slovenia, Lithuania and Ukraine. The results of this study found that students can understand easily the meaning of CSR in a comprehensive manner. They know both aspect of disclosure and report of the sustainability report.

  4. Threshold Concepts, Systems and Learning for Sustainability

    Science.gov (United States)

    Sandri, Orana Jade

    2013-01-01

    This paper presents a framework for understanding the role that systems theory might play in education for sustainability (EfS). It offers a sketch and critique of Land and Meyer's notion of a "threshold concept", to argue that seeing systems as a threshold concept for sustainability is useful for understanding the processes of…

  5. Existing Sustainable Renovation Concepts

    DEFF Research Database (Denmark)

    Tommerup, Henrik M.; Vanhoutteghem, Lies; Gustavsson, Leif

    The Nordic single-family house renovation market is dominated by a craftsman based approach with individual solutions, traditional warehouses ”do-it-yourself-shops” and some actors marketing single products. To speed up the implementation of sustainable renovation of single-family houses...... there is a great need for full-service packages including consulting, contract work, follow-up, financing and operation and maintenance. There are few Nordic examples of such service models for renovation of single-family houses which entered the market recently. The success of these concepts is yet...

  6. Sustainable agriculture: Developing a common understanding for ...

    African Journals Online (AJOL)

    The concept of sustainability has become central to all sectors all over the world, from agriculture to environment to business, engineering and industrialization. The principle of sustainability is the same all over these sectors. However, the understanding of the term may vary from sector to sector depending on how it may be ...

  7. SUSTAINABLE DEVELOPMENT, A MULTIDIMENSIONAL CONCEPT

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    TEODORESCU ANA MARIA

    2015-06-01

    Full Text Available Sustainable development imposed itself as a corollary of economic term "development". Sustainable development is meant to be the summation of economic, environmental and social considerations for the present and especially for the future. The concept of sustainable development plays an important role in european and global meetings since 1972, the year it has been set for the first time. Strategies necessary to achieve the objectives of sustainable development have been developed, indicators meant to indicate the result of the implementation of policies have been created, national plans were oriented towards achieving the proposed targets. I wanted to highlight the multidimensional character of the concept of sustainable development. Thus, using specialized national and international literature, I have revealed different approaches of one pillar to the detriment of another pillar depending on the specific field. In the different concepts of sustainable development, the consensus is undoubtedly agreed on its components: economic, social, environmental. Based on this fact, the concept of sustainability has different connotations depending on the specific content of each discipline: biology, economics, sociology, environmental ethics. The multidimensional valence of sustainable development consists of three pillars ability to act together for the benefit of present and future generations. Being a multidimensional concept, importance attached to a pillar over another is directed according to the particularities of each field: in economy profit prevails, in ecology care of natural resources is the most important, the social aims improving human living conditions. The challenge of sustainable development is to combine all the economic, environmental and social benefits and the present generation to come. Ecological approach is reflected in acceptance of limited natural resources by preserving natural capital. In terms of the importance of

  8. Understanding the Agribusiness Concept.

    Science.gov (United States)

    Lee, Jasper S.

    Designed to aid in learning the main ideas of the agribusiness concept, this document answers the following questions, treating each answer in a separate explanatory section: (1) What is the meaning of the terms "agriculture" and "agribusiness"? (2) What is the relationship of agriculture and agribusiness? (3) What is involved in tracing an…

  9. Public understanding of sustainable tourism

    OpenAIRE

    Miller, G; Rathouse, K; Scarles, C; Holmes, K; Tribe, J

    2010-01-01

    If tourism is to become part of a more sustainable lifestyle, changes are needed to the patterns of behaviour adopted by the public. This paper presents the results of research conducted amongst members of the public in England on their understanding of sustainable tourism; their response to four desired tourism behaviour goals, and expectations about the role of government and the tourism industry in encouraging sustainable tourism. The research shows a lack of awareness of tourism’s impact ...

  10. Developing the concept of sustainability in nursing.

    Science.gov (United States)

    Goodman, Benny

    2016-10-01

    Sustainability, and the related concept of climate change, is an emerging domain within nursing and nurse education. Climate change has been posited as a serious global health threat requiring action by health professionals and action at international level. Anåker & Elf undertook a concept analysis of sustainability in nursing based on Walker and Avant's framework. Their main conclusions seem to be that while defining attributes and cases can be established, there is not enough research into sustainability in the nursing literature. This paper seeks to develop their argument to argue that sustainability in nursing can be better understood by accessing non-nursing and grey literature and, for example, the literature in the developing web-based 'paraversity'. Without this understanding, and application in nursing scholarship, nurses will have a rather narrow understanding of sustainability and its suggested links with social and health inequalities and the dynamics underpinning unsustainable neoliberalist political economy. This understanding is based on the social and political determinants of health approach and the emerging domain of planetary health. However, this is a major challenge as it requires a critical reflection on what counts as nursing knowledge, a reflection which might reject sustainability and political economy as irrelevant to much of nursing practice. © 2016 John Wiley & Sons Ltd.

  11. Sustainability in nursing: a concept analysis

    OpenAIRE

    Anåker, Anna; Elf, Marie

    2014-01-01

    Aim. The aim of this study was to describe, explore and explain the concept of sustainability in nursing. Background. Although researchers in nursing and medicine have emphasised the issue of sustainability and health, the concept of sustainability in nursing is undefined and poorly researched. A need exists for theoretical and empirical studies of sustainability in nursing. Design. Concept analysis as developed by Walker and Avant. Method. Data were derived from dictionaries, international h...

  12. Ausubel's understanding of concept development

    Directory of Open Access Journals (Sweden)

    Janković Aleksandar P.

    2015-01-01

    Full Text Available This paper presents one of relatively new cognitivistic learning and cognition theories - the theory by American psychologist David Ausubel. We consider this theory to be very usable for teaching beginners or for cognition process. It is of utmost importance that first or elementary concepts concerning natural and social phenomena a pupil aquires need to be accurate, understandable and properly connected in a cause-effect sequence of conceptual systems so that items of knowledge aquired can be stable and usable. For correct understanding of Ausubel's claims concerning processes and procedures involved in the acquisition of elementary concepts, which is central to this investigation, it is necessary to address problems and questions concerning the following: the process of aquisition or construction of first concepts; how to base verbal learning; how is subsuming achieved, that is connecting of new and previously acquired concepts; what is the relation of this theory with other cognitivistic theories of learning, and, finally, what are critical views or evalutions which can make this theory truly productive in relation to teaching.

  13. Sustainability in nursing: a concept analysis

    Science.gov (United States)

    Anåker, Anna; Elf, Marie

    2014-01-01

    Aim The aim of this study was to describe, explore and explain the concept of sustainability in nursing. Background Although researchers in nursing and medicine have emphasised the issue of sustainability and health, the concept of sustainability in nursing is undefined and poorly researched. A need exists for theoretical and empirical studies of sustainability in nursing. Design Concept analysis as developed by Walker and Avant. Method Data were derived from dictionaries, international healthcare organisations and literature searches in the CINAHL and MEDLINE databases. Inclusive years for the search ranged from 1990 to 2012. A total of fourteen articles were found that referred to sustainability in nursing. Results Sustainability in nursing involves six defining attributes: ecology, environment, future, globalism, holism and maintenance. Antecedents of sustainability require climate change, environmental impact and awareness, confidence in the future, responsibility and a willingness to change. Consequences of sustainability in nursing include education in the areas of ecology, environment and sustainable development as well as sustainability as a part of nursing academic programs and in the description of the academic subject of nursing. Sustainability should also be part of national and international healthcare organisations. The concept was clarified herein by giving it a definition. Conclusion Sustainability in nursing was explored and found to contribute to sustainable development, with the ultimate goal of maintaining an environment that does not harm current and future generations′ opportunities for good health. This concept analysis provides recommendations for the healthcare sector to incorporate sustainability and provides recommendations for future research. PMID:24602178

  14. Developing Sustainable Life Support System Concepts

    Science.gov (United States)

    Thomas, Evan A.

    2010-01-01

    Sustainable spacecraft life support concepts may allow the development of more reliable technologies for long duration space missions. Currently, life support technologies at different levels of development are not well evaluated against each other, and evaluation methods do not account for long term reliability and sustainability of the hardware. This paper presents point-of-departure sustainability evaluation criteria for life support systems, that may allow more robust technology development, testing and comparison. An example sustainable water recovery system concept is presented.

  15. Measuring Student Teachers' Understandings and Self-Awareness of Sustainability

    Science.gov (United States)

    Birdsall, Sally

    2014-01-01

    Understanding sustainability is important, as people need to cope with issues associated with over-population and over-consumption. Education is seen as a key strategy to assist with the development of people's understandings of this complex concept, which could then lead to them being able to make more sustainable lifestyle decisions. In order to…

  16. A concept for assessing sustainability – The Sustainability Diamond

    OpenAIRE

    Kammerl, Daniel;Zink, Roland; Hollauer, Christoph;Lindemann, Udo

    2017-01-01

    The paper presents a new assessment methodology to measure sustainability for product development. The sustainability diamond consists of three dimensions, six criteria at the intersection of sustainability and usage and a variable number of indicators. Furthermore the concept provides opportunities to integrate people and actors (stakeholder) as well as a dynamic aspect, which gives the user the ability to apply the concept to different topics.

  17. CONCEPT OF SUSTAINABILITY – A LOGICAL APPROACH

    Directory of Open Access Journals (Sweden)

    EMIL DINGA

    2011-04-01

    Full Text Available The paper aims to achieve a definition of the concept of sustainability and of sustainable system from a logical perspective. In this respect, it introduces and defines (through the sufficiency predicates the concept of logically vivid system and, on this basis, are discussed a logical concept of sustainability, respectively of a sustainable system in general are discussed and built up. Sustainability is considered in light of identity preservation of the systems, as a static anchor, on one hand, and of the concept of automatic stabilizers as a dynamic anchor on the other side. Finally, the two sufficiency conditions for a logically vivid system be sustainable are identified: the presence of hyper-cycles, respectively the absence of positive feed-back.

  18. Sustainability in nursing: a concept analysis.

    Science.gov (United States)

    Anåker, Anna; Elf, Marie

    2014-06-01

    The aim of this study was to describe, explore and explain the concept of sustainability in nursing. Although researchers in nursing and medicine have emphasised the issue of sustainability and health, the concept of sustainability in nursing is undefined and poorly researched. A need exists for theoretical and empirical studies of sustainability in nursing. Concept analysis as developed by Walker and Avant. Data were derived from dictionaries, international healthcare organisations and literature searches in the CINAHL and MEDLINE databases. Inclusive years for the search ranged from 1990 to 2012. A total of fourteen articles were found that referred to sustainability in nursing. Sustainability in nursing involves six defining attributes: ecology, environment, future, globalism, holism and maintenance. Antecedents of sustainability require climate change, environmental impact and awareness, confidence in the future, responsibility and a willingness to change. Consequences of sustainability in nursing include education in the areas of ecology, environment and sustainable development as well as sustainability as a part of nursing academic programs and in the description of the academic subject of nursing. Sustainability should also be part of national and international healthcare organisations. The concept was clarified herein by giving it a definition. Sustainability in nursing was explored and found to contribute to sustainable development, with the ultimate goal of maintaining an environment that does not harm current and future generations' opportunities for good health. This concept analysis provides recommendations for the healthcare sector to incorporate sustainability and provides recommendations for future research. © 2014 The Authors. Scandinavian Journal of Caring Sciences published by John Wiley & Sons Ltd on behalf of Nordic College of Caring Science.

  19. Sustainability: an evolutionary concept analysis. Exploring nursing's role within the sustainability movement.

    Science.gov (United States)

    McMillan, Kimberly

    2014-04-01

    This paper aimed to explore the evolution of the concept of sustainability to facilitate further knowledge development in the discipline of nursing. The concept of 'sustainability' emerged in the 1950s as a result of the environmental movement. The concept has been adapted by the discipline of management and is increasingly discussed in the context of health care. The concept remains ambiguous in the discipline of nursing, resulting in a struggle to articulate the role of nursing in the sustainability movement. Rodgers evolutionary method of concept analysis was used. Literature was searched from 1987-2011, including English, peer reviewed texts in the databases CINAHL and ABI/INFORM global. Two book chapters and grey literature were also included. References were read and analysed according to antecedents, attributes, consequences, surrogate terms and related terms. Defining antecedents, attributes and consequences highlight the complexity and diversity of the concept. Attributes include: sustainability as a condition of change, as process, as outcome, as dependent of multiple stakeholders, and as social consciousness. 'Sustainability' is a fragile concept highly dependent on the processes and stakeholders involved in its fruition. There is a distinct difference in the level of concept clarity between the disciplines of management and nursing. The complexities associated with the concept of 'Sustainability' have led to its ambiguity. Nursing must, however, work to further clarify the concept to fully understand nursing's potential role in the sustainability movement. © 2013 John Wiley & Sons Ltd.

  20. Definición de un marco teórico para comprender el concepto del desarrollo sustentable./Definition of a theoretical framework for understanding the concept of sustainable development.

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    Cárdenas Jirón; Luz Alicia

    1999-12-01

    Full Text Available Dado el actual requerimiento por comprender un concepto tan recurrente en el campo profesional, académico y político como es el Desarrollo Sustentable, es que ocurre la elaboración de este articulo. Por tanto lo que se pretende lograr es aclarar el significado conceptual del Desarrollo Sustentable, situarlo en un contexto, entender el proceso gestacional e ilustrar con algún ejemplo clásico Latinoamericano./It contributes to the understanding of the concept of sustainable development. First, referring to a global political context existing economic in the second half of this century. Then develops a theoretical framework for the meaning and the different approaches related to sustainable development. From this, it raises agendas to realize and move towards this type of development, which emphasize the local level as a solid starting point. Shows the case of the city of Curitiba, with proper planning and sustainable management recognized.

  1. Framing the elusive concept of sustainability: a sustainability hierarchy.

    Science.gov (United States)

    Marshall, Julian D; Toffel, Michael W

    2005-02-01

    Usage of the word "sustainability" is widespread and incorporates a plethora of meanings. After reviewing four extant sustainability frameworks, we propose a Sustainability Hierarchy to structure a broad array of issues that have been associated with sustainability. These issues vary widely in their urgency, severity and uncertainty of consequences, and temporal and spatial dimensions. It categorizes actions some view as unsustainable based on their direct or indirect potential to (i) endanger the survival of humans; (ii) impair human health, (iii) cause species extinction or violate human rights; or (iv) reduce quality of life or have consequences that are inconsistent with other values, beliefs, or aesthetic preferences. Effects considered include impediments to the ecosystem functions that support human life, human health, and species viability. This paper argues that for sustainability to become a more meaningful concept, the many worthy issues in the fourth category (values, beliefs, and aesthetic preferences) should not be considered sustainability concerns. Implications for companies, policy makers, and scientists are discussed.

  2. The sustainability of healthcare innovations: a concept analysis.

    Science.gov (United States)

    Fleiszer, Andrea R; Semenic, Sonia E; Ritchie, Judith A; Richer, Marie-Claire; Denis, Jean-Louis

    2015-07-01

    To report on an analysis of the concept of the sustainability of healthcare innovations. While there have been significant empirical, theoretical and practical contributions made towards the development and implementation of healthcare innovations, there has been less attention paid to their sustainability. Yet many desired healthcare innovations are not sustained over the long term. There is a need to increase clarity around the concept of innovation sustainability to guide the advancement of knowledge on this topic. Concept analysis. We included literature reviews, theoretical and empirical articles, books and grey literature obtained through database searching (ABI/INFORM, Academic Search Complete, Business Source Complete, CINAHL, Embase, MEDLINE and Web of Science) from 1996-May 2014, reference harvesting and citation searching. We examined sources according to terms and definitions, characteristics, preconditions, outcomes and boundaries to evaluate the maturity of the concept. This concept is partially mature. Healthcare innovation sustainability remains a multi-dimensional, multi-factorial notion that is used inconsistently or ambiguously and takes on different meanings at different times in different contexts. We propose a broad conceptualization that consists of three characteristics: benefits, routinization or institutionalization, and development. We also suggest that sustained innovations are influenced by a variety of preconditions or factors, which are innovation-, context-, leadership- and process-related. Further conceptual development is essential to continue advancing our understanding of the sustainability of healthcare innovations, especially in nursing where this topic remains largely unexplored. © 2015 John Wiley & Sons Ltd.

  3. Analysis of promising sustainable renovation concepts

    DEFF Research Database (Denmark)

    Vanhoutteghem, Lies; Tommerup, Henrik M.; Svendsen, Svend

    This report focuses on analyses of the most promising existing sustainable renovation concepts, i.e. full-service concepts and technical concepts, for single-family houses. As a basis for the analyses a detailed building stock analysis was carried out. Furthermore, as a basis a general working...... and contractors and the idea is to help the homeowner with design and decision making process. The building stock analysis shows that detached single-family houses account for large share of the total number of dwellings in all Nordic countries. Final energy use for space heating and hot water is in the range...

  4. National sustainable transport planning - concepts and practices

    DEFF Research Database (Denmark)

    Sørensen, Claus Hedegaard; Gudmundsson, Henrik; Leleur, Steen

    the concept of ‘national sustainable transport planning’. This is done via selected literature within this and associated areas. A definition is provided and it is suggested that three interlinked dimensions are of importance for transitions, thus a normative, an analytic and a governance dimension....... The definition of national sustainable transport planning is confronted with current national transport planning practices in Sweden and Norway, which are somewhat advanced and have long traditions of recurrent, comprehensive, cross modal planning processes and integrated documents. Nevertheless, it is found......Sustainability has become a significant ambition for transport planners and policy-makers around the world. However, a transition to sustainable transport is a challenging, long term process, which raises important questions concerning how national, planning processes could support the integration...

  5. A territorial understanding of sustainability in public development

    Energy Technology Data Exchange (ETDEWEB)

    Peti, Marton, E-mail: mpeti@vati.hu

    2012-01-15

    Sustainability theories in European Union (EU) development policies are facing significant challenges: it is difficult to transmit context-specific, publicly communicable messages; the recent development policies strengthen the concurrent development paradigm of economic growth and competitiveness; 'climate change' became a more popular environmental integration term than sustainability in the last few years. However, due to the recent crises of the economic growth, there is a great chance to reintroduce a sustainability-based development. A territorial/regional understanding of sustainability can also be an answer for the current challenges, a platform for refreshing the concept with relevant, specific messages that are close to the everyday life. This paper summarises the 'territorial system'-based basic principles of territorial sustainability in a model called AUTHARSIIV (AUTonomy, HARmony, Solidarity, Innovation, Identity and Values). This is a supplementary sustainability content specified for the context of spatial/regional development or planning. The paper also examines the presence of 'general and territorial sustainability' in regional development programmes, and case studies on applying the territorial sustainability principles in planning, assessment, and implementation. According to the results, sustainability is rarely adapted to the conditions of a given sector or a region, and the territorial aspect of sustainability is underrepresented even in territorial programmes. Therefore, the paper proposes a new planning and assessment system that is based on a set of regionally legitimate sustainability values.

  6. Evolution of the concept of sustainable development

    International Nuclear Information System (INIS)

    Carrizosa Umana, Julio

    2000-01-01

    Topics like the sustainable development are analyzed before the years eighty; main models and criticize current. In her it is to synthesize the process of theoretical construction of the concept, making emphasis in the relativity of the development idea, in the relationship of the sustainability with the justness, and in their vision of the future. The neo liberal pattern of D.S is presented and the variations introduced by the World Bank as well as the proposals of construction of a model of community DS

  7. Embedding Sustainability and Renewable Energy Concepts into Undergraduate Curriculum

    Science.gov (United States)

    Belu, R.; Cioca, L.

    2017-12-01

    Human society is facing an uncertain future due to the present unsustainable use of natural resources and the growing imbalance with our natural environment. Creation of a sustainable society is a complex multi-disciplinary and multi-stage project, believed to dominate our century, requiring collaboration, teamwork, and abilities to work with respect and learn from other disciplines and professions. Sustainable development means technological progress meeting the present needs without compromising future generation ability to meet its needs and aspirations. It has four aspects: environment, technology, economy, and societal organizations. Students are often taught to deal with technological developments and economic analysis to assess the process or product viability, but are not fully familiar with sustainability and optimization of technology development benefits and the environment. Schools in many disciplines are working to include sustainability concepts into their curricula. Teaching sustainability and renewable energy has become an essential feature today higher education. Sustainable and green design is about designs recognizing the constraints of the natural resource uses and the environment. It applies to all of engineering and science areas, as all systems interact with the environment in complex and important ways. Our project goals are to provide students with multiple and comprehensive exposures to sustainability and renewable energy concepts, facilitating the development of passion and skills to integrate them into practice. The expected outcomes include an increased social responsibility; development of innovative thinking skills; understanding of sustainability issues, and increasing student interests in the engineering and science programs. The project aims to incorporate sustainability and renewable energy concepts into our undergraduate curricula, employing the existing course resources, and developing new courses and laboratory experiments

  8. Assessing Elementary Understanding of Multiplication Concepts

    Science.gov (United States)

    Smith, Stephanie Z.; Smith, Marvin E.

    2006-01-01

    This article summarizes the basic concepts of multiplication and provides some evidence that the traditional third-grade curriculum and instruction emphasizing memorization of multiplication facts produces much less understanding of the basic concepts of multiplication than a standards-based curriculum and instruction emphasizing construction of…

  9. A territorial understanding of sustainability in public development

    International Nuclear Information System (INIS)

    Péti, Márton

    2012-01-01

    Sustainability theories in European Union (EU) development policies are facing significant challenges: it is difficult to transmit context-specific, publicly communicable messages; the recent development policies strengthen the concurrent development paradigm of economic growth and competitiveness; ‘climate change’ became a more popular environmental integration term than sustainability in the last few years. However, due to the recent crises of the economic growth, there is a great chance to reintroduce a sustainability-based development. A territorial/regional understanding of sustainability can also be an answer for the current challenges, a platform for refreshing the concept with relevant, specific messages that are close to the everyday life. This paper summarises the ‘territorial system’-based basic principles of territorial sustainability in a model called AUTHARSIIV (AUTonomy, HARmony, Solidarity, Innovation, Identity and Values). This is a supplementary sustainability content specified for the context of spatial/regional development or planning. The paper also examines the presence of ‘general and territorial sustainability’ in regional development programmes, and case studies on applying the territorial sustainability principles in planning, assessment, and implementation. According to the results, sustainability is rarely adapted to the conditions of a given sector or a region, and the territorial aspect of sustainability is underrepresented even in territorial programmes. Therefore, the paper proposes a new planning and assessment system that is based on a set of regionally legitimate sustainability values.

  10. Composing new understandings of sustainability in the Anthropocene

    Science.gov (United States)

    Jeong, Sophia (Sun Kyung); Britton, Stacey; Haverkos, Kimberly; Kutner, Mel; Shume, Teresa; Tippins, Deborah

    2018-03-01

    The relationship between sustainability and the Anthropocene takes on new meaning in a time of unprecedented human impact on Earth systems. This relationship is at times contested and not well researched but critical in considering how we will respond to environmental challenges of today and the future. Elaborating on the need for new perspectives and nuanced understandings of sustainability, the contributors to this volume draw on posthumanist and "new" feminist materialist methodologies and theoretical lenses to engage readers in ways, which often contrast with prevailing thinking and research. From the cosmopolitics of place in urban Berlin to the watery space of urban wetlands they share research and rich narratives, which illustrate how sustainability is theorized and enacted across a range of diverse educational contexts. Moving beyond the rhetoric of sustainability, the authors invite us to explore innovative ways to engage with new concepts and emerging tensions that are now influencing the fields of education and sustainability.

  11. Is the concept of sustainable tourism sustainable? Developing the Sustainable Tourism Benchmarking Tool

    OpenAIRE

    Cernat, Lucian; Gourdon, Julien

    2011-01-01

    Given the complexity of the issues surrounding the concept of sustainable tourism, the current paper tries to provide a unified methodology to assess tourism sustainability, based on a number of quantitative indicators. The proposed methodological framework (Sustainable Tourism Benchmarking Tool – STBT) will provide a number of benchmarks against which the sustainability of tourism activities in various countries can be assessed. A model development procedure is proposed: identification of th...

  12. International Legal Concept of Environmentally Sustainable Cities

    Directory of Open Access Journals (Sweden)

    Mikhail N. Kopylov

    2015-12-01

    Full Text Available Article deals with a comparative legal analyses of the concept of environmentally sustainable cities elaborated by the United Nations Environment Program (UNEP and the UN–Habitat Program, on the one hand, and in the subregion of East Africa, wider Caribbean region and in the South-East Asian region, presented by the Association of Southeast Asian Nations (ASEAN - on the other. The competence of the ASEAN working group on environmentally sustainable cities, the criteria of sustainability, established in the ASEAN and conditions of nomination on environmentally sustainable city title are disclosed. The problems of wastes in the Southeast Asian region are analyzed and different possible ways of their solution are suggested separately. Several examples of environmental problems settlement in different cities of different parts of the Earth are suggested. Special attention is paid to different criteria, which are used in the framework of ASEAN Environmentally Sustainable Cities Program with concern to the air, water, soil and energy supply. In connection with the latest problem the problem of alternative energy sources in ASEAN Member States is raised and the task of possible transition to alternative sources of energy of all Southeast Asia states is discussed.

  13. Geography, sustainability and the concept of glocalization

    Directory of Open Access Journals (Sweden)

    Herman Theodoor Verstappen

    2010-06-01

    Full Text Available Sustainability focuses on the question whether our planet can sustain the present and future global human impact. The related environmental issues and particularly global changes, such as increasing temperatures, rising sea level, deforestation and deteriorating biodiversity, have become a key subject in earth science research. The social and economic components of sustainability, however, get less scientific attention and are often ignored in political and religious circles. Emphasis is on the symptoms of the issue rather than on coping strategies. Are the growing population numbers and social discrepancies compatible with sustainability and is the free market economy of our consumption society compatible with the ecological limits of growth, social balance and human aspirations? Sustainable development is a realistic concept only if its economic aspects are shouldered by social and environmental considerations and if regional and local diversity is respected. The globalization required today thus should be coupled with decentralized glocalization. In this interdisciplinary field of regional differentiation geography can make important contributions. Earth observation from satellites and data handling using geoinformation systems are essential tools.

  14. Developing Engineering Students’ Understanding of Sustainability Using Project Based Learning

    Directory of Open Access Journals (Sweden)

    Margaret Jollands

    2013-11-01

    Full Text Available Project based learning (PjBL can be an effective approach to developing graduate attributes, but it depends on how it is implemented. Chemical Engineering of RMIT University has a stream of PjBL subjects from first to final year. The projects are incrementally more complex but have the same goal: to choose a best process design, using management decision making tools to justify their choices. The tools include GEMI Metrics NavigatorTM. This paper reports an evaluation of whether students’ understanding of sustainability is enhanced by undertaking multiple projects, as well as use of sophisticated analysis tools. Student learning outcomes from intermediate and final subjects were compared using ConceptMaps and a focus group. The students’ understanding of sustainability increased substantially from 2nd to final year, similar to results reported in European studies. The spread of results was broad, attributed to range of student ability and differences between student cohorts. Development of understanding of sustainability was attributed to undertaking multiple projects and use of spread-sheeting tools. Use of the GEMI tool was identified as facilitating application of sustainability principles to process design decisions. Concept maps are a useful way to evaluate innovations in teaching sustainable engineering.

  15. SUSTAINABLE BUSINESS COMPETITIVENESS: TRANSLATING CONCEPT INTO PRACTICE

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    Idqan Fahmi

    2012-07-01

    Full Text Available Globalization has proven to spur economic growth for many countries in the world. It has, however, also negative impacts in terms of widening income gap, environmental degradation etc. such that many are worried that the growth will not be sustainable. Triple bottom line was introduced to make the economic growth and company competitiveness more sustainable. Although to define the concept is easy, to make it implemented, especially by developing countries, is another matter. Education and research track by universities is suggested to be one best way to accelerate the implementation of the concept. A case of Graduate Program of Management and Business (MB-IPB is used to illustrate the attempt.Keywords: Sustainable Business Competitiveness, Triple Bottom Line, MB-IPB, 3PsABSTRAKGlobalisasi telah terbukti memacu pertumbuhan ekonomi pada berbagai belahan dunia, tetapi juga mempunyai banyak dampak negatif yang dirasakan dalam bentuk melebarnya kesenjangan pendapatan, kerusakan lingkungan dll. Akibatnya banyak khawatir bahwa pertumbuhan ekonomi yang terjadi tidak akan berkelanjutan. Konsep Triple Bottom Line diperkenalkan untuk membuat pertumbuhan ekonomi dan dayasaing perusahaan lebih berkelanjutan. Walaupun konsep ini relatif mudah untuk dijelaskan, menerapkannnya ternyata tidak mudah, terutama di negara berkembang. Jalur pendidikan dan penelitian merupakan salah satu cara terbaik yang dapat dilakukan universitas untuk mempercepat penerapan konsep. Kasus Program Pascasarjana Manajemen dan Bisnis (MB-IPB digunakan untuk mengilustrasikan upaya tersebut.Kata kunci: Dayasaing Bisnis Berkelanjutan, Triple Bottom Line, MB-IPB, 3P

  16. Plasma chemistry for concept of sustainable development

    International Nuclear Information System (INIS)

    Chernyak, V.Yu.; Nedybaliuk, O.A.; Tsymbaliuk, O.M.; Fedirchuk, I.I.; Chunikhina, K.I.; Martysh, E.V.; Iukhimenko, V.V.; Veremii, Iu.P.; Prisyazhnevych, I.V.; Prysiazhna, O.V.

    2016-01-01

    This work is devoted to the exploration of the compatibility of the hybrid plasma-catalytic conversion of liquid hydrocarbons into syngas with the concept of sustainable development. The results of the experimental investigations indicate the high efficiency of plasma-catalytic conversion of ethanol to syngas and the small amount of waste (a few percent of feedstock weight). The results of the simulation of the kinetics using ZDPlasKin code for traditional thermochemical and hybrid plasma-catalytic conversions indicate some differences in their mechanisms, which lead to the significant changes in the syngas ratio.

  17. Understanding catchment behaviour through model concept improvement

    NARCIS (Netherlands)

    Fenicia, F.

    2008-01-01

    This thesis describes an approach to model development based on the concept of iterative model improvement, which is a process where by trial and error different hypotheses of catchment behaviour are progressively tested, and the understanding of the system proceeds through a combined process of

  18. Understanding Social Networks: Theories, Concepts, and Findings

    Science.gov (United States)

    Kadushin, Charles

    2012-01-01

    Despite the swift spread of social network concepts and their applications and the rising use of network analysis in social science, there is no book that provides a thorough general introduction for the serious reader. "Understanding Social Networks" fills that gap by explaining the big ideas that underlie the social network phenomenon.…

  19. SUSTAINABLE BUSINESS COMPETITIVENESS: TRANSLATING CONCEPT INTO PRACTICE

    Directory of Open Access Journals (Sweden)

    Idqan Fahmi

    2012-09-01

    Full Text Available Normal 0 false false false EN-US X-NONE X-NONE Globalization has proven to spur economic growth for many countries in the world. It has, however, also negative impacts in terms of widening income gap, environmental degradation etc. such that many are worried that the growth will not be sustainable. Triple bottom line was introduced to make the economic growth and company competitiveness more sustainable. Although to define the concept is easy, to make it implemented, especially by developing countries, is another matter. Education and research track by universities is suggested to be one best way to accelerate the implementation of the concept. A case of Graduate Program of Management and Business (MB-IPB is used to illustrate the attempt.   Keywords: Sustainable Business Competitiveness, Triple Bottom Line, MB-IPB, 3Ps   /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-qformat:yes; mso-style-parent:""; mso-padding-alt:0cm 5.4pt 0cm 5.4pt; mso-para-margin-top:0cm; mso-para-margin-right:0cm; mso-para-margin-bottom:10.0pt; mso-para-margin-left:0cm; line-height:115%; mso-pagination:widow-orphan; font-size:11.0pt; font-family:"Calibri","sans-serif"; mso-ascii-font-family:Calibri; mso-ascii-theme-font:minor-latin; mso-fareast-font-family:"Times New Roman"; mso-fareast-theme-font:minor-fareast; mso-hansi-font-family:Calibri; mso-hansi-theme-font:minor-latin;}

  20. An Auto-Photographic Study of Undergraduate Students' Conceptions of Ocean Sustainability

    Science.gov (United States)

    Lin, Chi-I; Li, Yuh-Yuh

    2017-01-01

    Purpose: The purpose of this paper is to investigate students' understandings of ocean sustainability and the pedagogical influence of higher education on those conceptions. Design/methodology/approach: The conceptions of ocean sustainability of 54 university students of various academic disciplines enrolled in the 2014/2015 semester course…

  1. Emergence, concept, and understanding of Pan-River-Basin (PRB

    Directory of Open Access Journals (Sweden)

    Ning Liu

    2015-12-01

    Full Text Available In this study, the concept of Pan-River-Basin (PRB for water resource management is proposed with a discussion on the emergence, concept, and application of PRB. The formation and application of PRB is also discussed, including perspectives on the river contribution rates, harmonious levels of watershed systems, and water resource availability in PRB system. Understanding PRB is helpful for reconsidering river development and categorizing river studies by the influences from human projects. The sustainable development of water resources and the harmonization between humans and rivers also requires PRB.

  2. The Sustainability Cycle and Loop: models for a more unified understanding of sustainability.

    Science.gov (United States)

    Hay, Laura; Duffy, Alex; Whitfield, R I

    2014-01-15

    In spite of the considerable research on sustainability, reports suggest that we are barely any closer to a more sustainable society. As such, there is an urgent need to improve the effectiveness of human efforts towards sustainability. A clearer and more unified understanding of sustainability among different people and sectors could help to facilitate this. This paper presents the results of an inductive literature investigation, aiming to develop models to explain the nature of sustainability in the Earth system, and how humans can effectively strive for it. The major contributions are two general and complementary models, that may be applied in any context to provide a common basis for understanding sustainability: the Sustainability Cycle (S-Cycle), and the Sustainability Loop (S-Loop). Literature spanning multiple sectors is examined from the perspective of three concepts, emerging as significant in relation to our aim. Systems are shown to provide the context for human action towards sustainability, and the nature of the Earth system and its sub-systems is explored. Activities are outlined as a fundamental target that humans need to sustain, since they produce the entities both needed and desired by society. The basic behaviour of activities operating in the Earth system is outlined. Finally, knowledge is positioned as the driver of human action towards sustainability, and the key components of knowledge involved are examined. The S-Cycle and S-Loop models are developed via a process of induction from the reviewed literature. The S-Cycle describes the operation of activities in a system from the perspective of sustainability. The sustainability of activities in a system depends upon the availability of resources, and the availability of resources depends upon the rate that activities consume and produce them. Humans may intervene in these dynamics via an iterative process of interpretation and action, described in the S-Loop model. The models are briefly

  3. Building Integrated Design Practice under the Concept of Sustainable Development

    Science.gov (United States)

    Liu, Xuexin

    2018-03-01

    With the continuous development of social economy, people are more demanding for architecture. Some advanced design concepts are gradually applied to the design of buildings. Under the concept of sustainable development, building integration design has also been widely used to promote the rapid development of architectural design. Integrated design concepts and sustainable development concepts play an important role to meet people’s requirements. This article will explore the concept of sustainable development under the concept of integrated architectural design and practice analysis, propose appropriate measures.

  4. Infrastructure Task Force Sustainable Infrastructure Goals and Concepts Document

    Science.gov (United States)

    This document outlines the concepts of appropriate infrastructure and sustainable management entities to guide the coordinated federal efforts to achieve greater sustainable access to safe drinking water and basic sanitation.

  5. Acceptance of the Application of Sustainable Concept in Malaysia’s Waste Management Infrastructure - Landfill

    Directory of Open Access Journals (Sweden)

    Jia Sin Tey

    2017-01-01

    Full Text Available Sustainable concept has been a topic that is of broad and current interest in applying in many different areas of development. A sustainable concept encompasses three main criteria, namely environmental, social, and economic. This sustainable concept has usually been defined as the ability to develop something to meet the present needs yet it does not compromise the ability of future generation to meet their needs. Whereas waste management plays an important role in managing the municipal solid wastes produced. The landfill has been widely used in the disposal of solid wastes. However, the negative impacts caused by landfill have led to the need for application of sustainable concept. The acceptance of sustainable concept by stakeholders will determine the possibility of moving into sustainable waste management. This study aims at assessing the of acceptance by the stakeholders in the application of the sustainable concept into landfill. The research was conducted by reviewing of the past similar researches and through interview with ten waste management stakeholders. The results obtained show that there are some limitations in terms of understanding on the concept of sustainability and the willingness in accepting on this concept. Further action should taken in and moving towards sustainable waste management.

  6. Concept Maps for Evaluating Learning of Sustainable Development

    Science.gov (United States)

    Shallcross, David C.

    2016-01-01

    Concept maps are used to assess student and cohort learning of sustainable development. The concept maps of 732 first-year engineering students were individually analyzed to detect patterns of learning and areas that were not well understood. Students were given 20 minutes each to prepare a concept map of at least 20 concepts using paper and pen.…

  7. Sustainability through service perspectives, concepts and examples

    CERN Document Server

    Wolfson, Adi; Martin, Patrick M; Tavor, Dorith

    2015-01-01

    This book discusses the mutual relationship between service and sustainability. It covers methodologies and approaches and describes measurements and tools that can promote sustainability on the service market. Lastly, it presents the different applications of sustainability, together with examples of sustainable services. Environmental concerns have become integral to any decision-making process in the design and implementation of goods and services. With the increasing dominance of the service sector, and as service systems become more complex and interdisciplinary, the focus must move from the exchange of products to that of services. Newly created services should thus aim to incorporate sustainability into their designs while viewing sustainability as a service in its own right. Integrating sustainability in the service design and development process is essential to improving the sustainability of our society and preserving the environment. Moreover, doing so shifts the service boundaries from values that...

  8. Thinking about sustainable development: Engaging with societal and ecological concepts

    CSIR Research Space (South Africa)

    Marais, Mario A

    2010-11-01

    Full Text Available The concept of sustainable development has increased in importance ever since the coming to prominence of environmental critiques of development in the 1980s. The very concept of sustainability has evolved as research on the dynamics of ecological...

  9. Geoethical remarks to sustainable development concepts

    Science.gov (United States)

    Nemec, Vaclav

    2013-04-01

    crust. Geological factors need to be reflected and respected in any concept of environmental sustainability. People have to improve permanently by an appropriate up-to-date geoeducation any knowledge of the behaviour of the Nature (including its predictability). The needed geoethical way of thinking and acting should be based on generally accepted moral and ethical principles achieved by mankind by various ways and experiences (in spite of some current contrary trends). It is necessary to seek new priorities emphasizing more and more the solidarity of human kind.

  10. Becoming more sustainable: concepts and issues

    Energy Technology Data Exchange (ETDEWEB)

    Pirages, D.C. [Maryland Univ., Dep. of Government and Politics, Harrison Program on the Future Global Agenda, College Park, MD (United States)

    1996-11-01

    The automobile and associated mobility system have had a major economic and ecological impact on human societies. The industrial revolution, during which the internal combustion engine has played a major role, has shaped secular, materialistic societies and associated consumption patterns that cannot be sustained in a future world of eight billion people. Creating a more sustainable world means maximizing human satisfaction while minimizing human impact on nature. Becoming more sustainable is best envisioned as a continuing process in which constraints and possibilities change over time and space. The sustainable process raises major controversies including how to define and measure progress, how to apportion wealth among generations, and between free trade and environmental preservation. Sustainable mobility implies major changes in approaches to transportation including stressing psychological rather than physical mobility, designing speciality vehicles for emerging niches, and placing special emphasis on mass transit systems for emerging megacities. (author) 17 refs.

  11. Turkish Student Science Teachers' Conceptions of Sustainable Development: A phenomenography

    Science.gov (United States)

    Kilinc, Ahmet; Aydin, Abdullah

    2013-03-01

    In creating a society whose citizens have sustainable lifestyles, education for sustainable development (ESD) plays a key role. However, the concept of sustainable development (SD) has developed independently from the input of educators; therefore, ESD presents current teachers with many challenges. At this point, understanding how stakeholders in the education sector (school students, student teachers, and teachers) view SD is of great importance. We selected a sample of 113 Turkish student science teachers from this body of stakeholders and distributed a questionnaire to them that included two separate sections. In the first section, questions regarding personal information such as gender, age, and year group were asked, whereas the meaning of SD was the focus of the second part. A phenomenographic approach was used to analyse student teachers' descriptions of SD. The results showed that student teachers had a variety of ideas about SD that could be collected under headings such as environment, technology, society, economy, politics, energy, and education. In addition, we thought that gender, context-based issues, and informal experiences might be responsible for the variety of the responses.

  12. Public understanding of radiation protection concepts

    International Nuclear Information System (INIS)

    1988-01-01

    The Chernobyl accident in April 1986 clearly showed that communication with the public was one of the areas where there was a strong need for improvement, particularly concerning the nature and extent of the information provided by national authorities. The countermeasures adopted by public health authorities also raised difficulties in terms of public understanding and acceptance due, in part, to the perception of discrepancies in national, regional or local response to the accident, but also to a more basic lack of comprehension of the complex radiation protection considerations involved. In an attempt to help improve the situation, the NEA Committee on Radiation Protection and Public Health decided to organise a Workshop on public communication in the event of a nuclear accident, centered on radiation protection issues. The purpose of this Workshop was to analyse appropriate methods and language to be used when explaining to the public the scientific concepts underlying radiation risks and radiation protection, and the technical rationale for the choice of protective actions in an emergency. Separate abstracts were prepared for individual papers presented at the meeting

  13. Existing sustainable renovation concepts for single-family houses

    DEFF Research Database (Denmark)

    Tommerup, Henrik M.; Vanhoutteghem, Lies; Svendsen, Svend

    2010-01-01

    In the Nordic Innovation Centre Project, SuccessFamilies, the main objective is to change the business environment in order to speed up the implementation of sustainable renovation of single-family houses – proposing new service concepts that will combine both the technical solutions, financing...... services as well as other promoting issues to overcome the behavioural, organizational, legal and social barriers that exist in sustainable renovation. A starting point for such a change has been to get an overview of the existing sustainable renovation concepts, i.e. full-service concepts and technical...... with individual solutions, traditional warehouses ”do-it-yourself-shops” and some actors marketing single products. To speed up the implementation of sustainable renovation of single-family houses there is a great need for full-service packages. Existing technical renovation concepts, typically focusing...

  14. Novel combustion concepts for sustainable energy development

    CERN Document Server

    Agarwal, Avinash K; Gupta, Ashwani K; Aggarwal, Suresh K; Kushari, Abhijit

    2014-01-01

    This book comprises research studies of novel work on combustion for sustainable energy development. It offers an insight into a few viable novel technologies for improved, efficient and sustainable utilization of combustion-based energy production using both fossil and bio fuels. Special emphasis is placed on micro-scale combustion systems that offer new challenges and opportunities. The book is divided into five sections, with chapters from 3-4 leading experts forming the core of each section. The book should prove useful to a variety of readers, including students, researchers, and professionals.

  15. Sustainability concept for energy, water and environment systems

    International Nuclear Information System (INIS)

    Afgan, N.H.

    2004-01-01

    This review is aimed to introduce historical background for the sustainability concept development for energy, water and environment systems. In the assessment of global energy and water resources attention is focussed in on the resource consumption and its relevancy to the future demand. In the review of the sustainability concept development special emphasize is devoted to the definition of sustainability and its relevancy to the historical background of the sustainability idea. In order to introduce measuring of sustainability the attention is devoted to the definition of respective criteria. There have been a number of attempts to define the criterions for the assessment of the sustainability of the market products. Having those criterions as bases, it was introduced a specific application in the energy system design

  16. Education for sustainable living: a useful concept? | le Grange ...

    African Journals Online (AJOL)

    In recent years education for sustainability (EFS) initiatives have significantly influenced debates and activities related to environmental education. Sustainability has come to be viewed from/in various theoretical perspectives such as liberalist, critical and postmodern. The concept is a contested one, open to debate and ...

  17. Sustainable development in the EU : Redefining and operationalizing the concept

    NARCIS (Netherlands)

    Van Hees, Sander R W

    Although sustainable development plays an important role in EU law, neither EU law nor EU policy clearly explains what the concept means and how it must be put into practice. Policy-makers, NGOs, politicians and businesses do, however, need guidance on sustainable development for the purpose of good

  18. Engage key social concepts for sustainability

    Science.gov (United States)

    C. C. Hicks; A. Levine; A. Agrawal; X. Basurto; S. J. Breslow; C. Carothers; Susan Charnley; S. Coulthard; N. Dolsak; J. Donatuto; C. Garcia-Quijano; M. B. Mascia; K. Norman; M. R. Poe; T. Satterfield; K. St. Martin; P. S. Levin

    2016-01-01

    With humans altering climate processes, biogeochemical cycles, and ecosystem functions (1), governments and societies confront the challenge of shaping a sustainable future for people and nature. Policies and practices to address these challenges must draw on social sciences, along with natural sciences and engineering (2). Although various social science approaches...

  19. The role of culture in implementing the concept of sustainability

    Science.gov (United States)

    Bakri, M.

    2018-03-01

    Environment degradation urges human to live in a sustaining way both for production and consumption mode. It covers any sector of human life include architecture. People are competing to implement the concept of sustainability using the latest technology while the culture has begun to be forgotten. Bearing in mind that by examining the culture related or daily activities, the sustainable development can be implemented with a solid base and fully accepted by the society. Hence, the benefit of sustainable development can be felt by the inhabitant sooner. The aim of this research is examining the local culture in Banda Aceh, Indonesia, and Gozo, Maltese Islands which has sustainability concept. The local culture can be a starting point in implementing the notion of sustainability through daily basis approach. This research uses the qualitative method and collects the data through observation and literature review. The result has shown that some of the cultures in selected area have sustainability values which can be developed further in term of the implementation of sustainable development. Thus, related to the sustainable development, the practitioners can shift to the deep-rooted local value rather than apply an alien concept in society.

  20. Deep Understanding of Electromagnetism Using Crosscutting Concepts

    Science.gov (United States)

    De Poorter, John; De Lange, Jan; Devoldere, Lies; Van Landeghem, Jouri; Strubbe, Katrien

    2017-01-01

    Crosscutting concepts like patterns and models are fundamental parts in both the American framework of science education (from the AAAS) and our proposals for a new science education framework in Flanders. These concepts deepen the insight of both students and teachers. They help students to ask relevant questions during an inquiry and they give…

  1. Landscape practise and key concepts for landscape sustainability

    DEFF Research Database (Denmark)

    Brandt, Jesper; Christensen, Andreas Aagaard; Svenningsen, Stig Roar

    2013-01-01

    time, the practice behind such conceptual frameworks has survived in many land use systems, being a fundamental source of inspiration for the modern challenge of landscape sustainability. Here, the concept and practice of carrying capacity is used as an example. We provide a modern interpretation...... of accessibility and its related conflicts, and opportunities for a sustainable development of tourism in and around the protected areas. It is concluded that the concept of carrying capacity cannot meaningfully be used for sustainability studies at an abstract conceptual level, but proves its relevance through...... a detailed context specific analyses of visitor related conflicts....

  2. Exploring the Concept of Sustainable Development through Role-Playing

    Science.gov (United States)

    Buchs, Arnaud; Blanchard, Odile

    2011-01-01

    The concept of sustainable development is used in everyday life by the general public, alongside researchers, institutions, and private companies. Nevertheless, its definition is far from being unequivocal. Clarifying the outline of the concept seems necessary. We have created a role-play for this purpose. Our article aims at depicting its main…

  3. Subject- and Experience-Bound Differences in Teachers' Conceptual Understanding of Sustainable Development

    Science.gov (United States)

    Borg, C.; Gericke, N.; Höglund, H.-O.; Bergman, E.

    2014-01-01

    This article describes the results of a nationwide questionnaire study of 3229 Swedish upper secondary school teachers' conceptual understanding of sustainable development in relation to their subject discipline and teaching experience. Previous research has shown that teachers have difficulties understanding the complex concept of sustainable…

  4. Understanding social sustainability of capture fisheries

    NARCIS (Netherlands)

    Veldhuizen, Linda J.L.

    2017-01-01

    Fishing companies are faced with decreasing profitability and increasing competition. These companies can try to gain a competitive advantage by differentiating their products, e.g. by marketing new product attributes that consumers are interested in such as attributes relating to sustainability.

  5. "Sustaining the Shrinking City: Concepts, Dynamics and ...

    Science.gov (United States)

    Sustainability can be broadly defined as the resilient outcome of the interaction among social equity, economic stability, and environmental quality factors. For example, the utilization of natural resource capitals are constrained by economic forces, and further modulated by social norms and perceptions. Nowhere is this more apparent than in cities, where the social, economic and environmental capital within the city and in its supporting region may wax and wane due to internal dynamics and external drivers. These changes may be charted as shifts in land use, the type and qualities of infrastructure, population and its demography, and other characteristics that drive the trajectory of a city toward shrinkage. Our authors will discuss how fluxes of different capitals (social, cultural, financial, technological, natural resources, governance/political) might align or substitute for each other to create conditions in the structure and function of city to attain a sustainable size after undergoing a rapid depopulation. Other authors focus on how the misalignment of capitals can doom a city to shrink uncontrollably, and in combination with shifts in environmental quality, the may destroy a city’s ability to function as an integrative center for social and economic interactions. We see this special issue as an attractive venue for data-based research on environmental factors as they impact change in the socio-cultural, economic, political, and physiographic feature

  6. Participatory Development of Key Sustainability Concepts for Dialogue and Curricula at The Ohio State University

    Directory of Open Access Journals (Sweden)

    Clair Bullock

    2015-10-01

    Full Text Available The Ohio State University (OSU is one of the many universities committed to sustainability within its operations, traditions, and university framework. The university continues to evolve in relation to its sustainability goals, and currently seeks to both build on and deepen the culture of sustainability at OSU. One way to do this is through increasing the sustainability literacy of students on campus, by creating an introductory sustainability curriculum, which would put forth the definitions, concepts, and initiatives that represent sustainability at Ohio State. However, before such a curriculum can be developed, it is important to first understand the current sustainability perceptions at OSU: what definition does the university want to embrace? What is most pertinent to teach OSU students? Twenty sustainability leaders across the university were interviewed in a participatory development process to produce consensus-based, local definitional concepts that are not only beneficial for student knowledge, but for OSU sustainability progress as a whole. The results of their recommendations have provided a solid framework from which the university can build in its future curricular efforts, and provides insights that may be particularly helpful in promoting sustainability in other large American universities. This study also describes a case of using participatory development (PD methods, which have been under-utilized in a higher education setting, particularly in sustainability implementation.

  7. Exploring Children's Understanding of Death Concepts

    Science.gov (United States)

    Lee, Joo Ok; Lee, Joohi; Moon, Sung Seek

    2009-01-01

    This study is an investigation of the effects of death education on children and their understanding of death. The participants of this study were eighty 5- and 6-year-olds who were enrolled in a suburban kindergarten in Korea. To examine the level of children's understanding of death, researchers interviewed each child in both the control and…

  8. The Cradle to Cradle concept - is it always sustainable?

    DEFF Research Database (Denmark)

    Bjørn, Anders; Strandesen, Maria

    The Cradle to Cradle (C2C) concept has gained wide interest among especially designers over the past few years. This paper aims to investigate whether C2C products are in fact always sustainable and to explore whether an ideal C2C society is so too. An LCA comparing the C2C certified mineral paper...... TerraSkin with a cellulose based reference paper was conducted. From this, energy systems and recycling infrastructure was found to be decisive parameters for the sustainability of C2C products. They are therefore not always sustainable. Moreover a literature study identified inherent sustainability...... conflicts of the C2C concept relating to: 1) 100% closed loop recycling is not thermodynamically practical 2) addition of biological nutrients to the environment may result in loss of biodiversity and 3) even an ideal C2C society will experience resource scarcity and loss of biodiversity as a result...

  9. Sustainability in Kenya's energy and development: an alien concept?

    NARCIS (Netherlands)

    Abdallah, S.M.

    2016-01-01

    Energy technologies, especially seen from the viewpoint of their importance as facilitators of development, are physical as well as social phenomena. This understanding is critical when considering energy that can advance sustainable development. Drawing from scholarly work, this development is

  10. Understanding Number Sequences Leads to Understanding Mathematics Concepts

    Science.gov (United States)

    Pasnak, Robert; Schmerold, Katrina Lea; Robinson, Melissa Fetterer; Gadzichowski, K. Marinka; Bock, Allison M.; O'Brien, Sarah Eva; Kidd, Julie K.; Gallington, Deb A.

    2016-01-01

    Ninety-six first grade students in an urban school system were tested in October and May on reading, mathematics, and their understanding of sequences of letters and numbers. A time lag analysis was subsequently conducted. In such analyses, cross-correlations between the first measurement of one variable and the second measurement of another are…

  11. Nuclear energy and sustainability: Understanding ITER

    International Nuclear Information System (INIS)

    Fiore, Karine

    2006-01-01

    Deregulation and new environmental requirements combined with the growing scarcity of fossil resources and the increasing world energy demand lead to a renewal of the debate on tomorrow's energies. Specifically, nuclear energy, which has undeniable assets, faces new constraints. On the one hand, nuclear energy is very competitive and harmless to greenhouse effect. From this point, it seems to be an ideal candidate to reach future objectives of sustainability, availability and acceptability. On the other hand, its technology of production - based on fission - remains imperfect and generates risks for environment and health. In this respect, it is less desirable. Therefore, world researchers turn today towards another type of nuclear technique, fusion, on which the project ITER is founded. This worldwide project is interesting for our analysis because, as a technological revolution, it takes into consideration all the global challenges of nuclear energy for the future, and particularly its capacity to meet the increasing energy needs of developing countries. It is the example par excellence of a successful international scientific collaboration oriented towards very long-run energy ends that involve huge technological, economic and political stakes. Focusing on this project, we thus have to reconsider the future place of nuclear energy in a more and more demanding world. Considering the magnitude of the efforts undertaken to implement ITER, this paper aims at analysing, in a detailed way, its goals, its challenges and its matter

  12. Understanding the human dimensions of a sustainable energy transition

    NARCIS (Netherlands)

    Steg, Linda; Perlaviciute, Goda; van der Werff, Ellen

    2015-01-01

    Global climate change threatens the health, economic prospects, and basic food and water sources of people. A wide range of changes in household energy behavior is needed to realize a sustainable energy transition. We propose a general framework to understand and encourage sustainable energy

  13. Sustainable Capture: Concepts for Managing Stream-Aquifer Systems.

    Science.gov (United States)

    Davids, Jeffrey C; Mehl, Steffen W

    2015-01-01

    Most surface water bodies (i.e., streams, lakes, etc.) are connected to the groundwater system to some degree so that changes to surface water bodies (either diversions or importations) can change flows in aquifer systems, and pumping from an aquifer can reduce discharge to, or induce additional recharge from streams, springs, and lakes. The timescales of these interactions are often very long (decades), making sustainable management of these systems difficult if relying only on observations of system responses. Instead, management scenarios are often analyzed based on numerical modeling. In this paper we propose a framework and metrics that can be used to relate the Theis concepts of capture to sustainable measures of stream-aquifer systems. We introduce four concepts: Sustainable Capture Fractions, Sustainable Capture Thresholds, Capture Efficiency, and Sustainable Groundwater Storage that can be used as the basis for developing metrics for sustainable management of stream-aquifer systems. We demonstrate their utility on a hypothetical stream-aquifer system where pumping captures both streamflow and discharge to phreatophytes at different amounts based on pumping location. In particular, Capture Efficiency (CE) can be easily understood by both scientists and non-scientist alike, and readily identifies vulnerabilities to sustainable stream-aquifer management when its value exceeds 100%. © 2014, National Ground Water Association.

  14. Understanding on concepts of force of Thai freshmen

    Science.gov (United States)

    Usawinchai, Chokchai

    The central concept of Newtonian mechanics is force. Without this concept, the students would find the rest of mechanics very difficult to master. Based on this hypothesis, the understandings and misconceptions of Newtonian mechanics were investigated. Three hundred eighteen Thai freshmen participated in this study. The freshmen were divided into two groups according to their high school locations, Bangkok and other cities of Thailand. The Force Concept Inventory was used to probe the freshmen's understandings and misconceptions. The SPSS and EXCEL programs were used to analyze the data. The translation of the FCI into Thai and its subsequent validation is considered to be a significant contribution to physics education research. The analyses indicated freshmen had the best understanding on concepts of Newton's first and third laws and the least on Newton's second law. Several Misconceptions on Newtonian force concepts were found, similar to their USA counterparts. Statistically significant differences were found between the two groups of freshmen on understanding of Newtonian force concepts.

  15. Sustainable Manufacturing and Design: Concepts, Practices and Needs

    Directory of Open Access Journals (Sweden)

    Hossam A. Kishawy

    2012-01-01

    Full Text Available An investigation is reported on the importance of integrating sustainability with manufacturing and design, along with other objectives such as function, competitiveness, profitability and productivity. The need of utilizing appropriate tools like design for environment, life cycle assessment and other environmentally sound practices that are cognizant of the entire life cycle of a process or product is highlighted. It is likely that sustainability and environmental stewardship will be increasingly important considerations in manufacturing and design in the future and are likely to influence the main priorities for advancing manufacturing operations and technologies. Designers and manufacturing decision makers who adopt a sustainability focus and establish a sustainability culture within companies are more likely to be successful in enhancing design and manufacturing. It is concluded that more extensive research and collaboration is needed to improve understanding of sustainability in manufacturing and design, and to enhance technology transfer and applications of sustainability.

  16. Applying Andragogical Concepts in Creating a Sustainable Lifelong Learning Society

    Science.gov (United States)

    Charungkaittikul, Suwithida; Henschke, John A.

    2017-01-01

    Today, the world is changing, re-establishing the role of education to have a developed society. This article aims to explore the practical application of Andragogy as a key element for creating a sustainable lifelong learning society, to propose strategies for developing a lifelong learning society using andragogical concepts, to enhance…

  17. Understanding statistical concepts using S-PLUS

    CERN Document Server

    Schumacker, Randall E

    2001-01-01

    Written as a supplemental text for an introductory or intermediate statistics course, this book is organized along the lines of many popular statistics texts. The chapters provide a good conceptual understanding of basic statistics and include exercises that use S-PLUS simulation programs. Each chapter lists a set of objectives and a summary.The book offers a rich insight into how probability has shaped statistical procedures in the behavioral sciences, as well as a brief history behind the creation of various statistics. Computational skills are kept to a minimum by including S-PLUS programs

  18. Understanding augmented reality concepts and applications

    CERN Document Server

    Craig, Alan B

    2013-01-01

    Augmented reality is not a technology. Augmented reality is a medium. Likewise, a book on augmented reality that only addresses the technology that is required to support the medium of augmented reality falls far short of providing the background that is needed to produce, or critically consume augmented reality applications. One reads a book. One watches a movie. One experiences augmented reality. Understanding Augmented Reality addresses the elements that are required to create compelling augmented reality experiences. The technology that supports

  19. The Construction of a Solidarity Sustainability Concept Theoretical Contributions to the Reach of Socio-Environmentalism

    Directory of Open Access Journals (Sweden)

    Heloise Siqueira Garcia

    2016-12-01

    Full Text Available The article has as general objective to draw up considerations about the concept of sustainability having as its apparatus its intimate connection with solidarity, so that the studies traced are presented as theoretical contributions to socio-environmentalism. In this context, the following specific objectives were listed: analyze the main aspects of Sustainability, focusing on the social dimension; to study Solidarity in its historical and conceptual aspects; and to understand the close correlation between both categories. In the methodology was adopted the inductive method, having been applied the techniques of the referent, category, operational concepts, bibliographical research and file.

  20. Understanding the motivational perspectives of sustainability: A case of biogas production

    Directory of Open Access Journals (Sweden)

    Marco Pereira Querol

    2015-06-01

    Full Text Available Despite the importance of the expectations and visions of the actors involved in sustainable innovations, only the societal, motivational perspective is usually considered. The fact that local actors may have different multi-motivations is typically overlooked. The aim of this study is to examine and understand the multi-motivational perspectives in a sustainable production project. First, we introduce the concept of the object and analyze the case of a biogas production project as a mediating activity for making swine production more sustainable. We argue that the object of the activity, as manifested in motivational perspectives, shapes the way in which biogas production (BP systems are implemented. The article concludes by discussing how the concept of object can be used to explore the actual and future possibilities of using artifacts for increasing the sustainability of production.

  1. Understanding sustainability from an exergetic frame in complex adaptive systems

    International Nuclear Information System (INIS)

    Aguilar Hernandez, Glem Alonso

    2017-01-01

    The concept of sustainability was developed from thermodynamic properties applied to complex adaptive systems. The origins of the perception about sustainable development and limitation in its application to analyze the interaction between a system and its surroundings were described. The properties of a complex adaptive system were taken as basis to determine how a system can to be affected by the resources restriction and irreversibility of the processes. The complex adaptive system was understood using the first and second law of thermodynamics, generating a conceptual framework to define the sustainability of a system. The contributions developed by exergy were shown to analyze the sustainability of systems in an economic, social and environmental context [es

  2. Understanding the human dimensions of a sustainable energy transition.

    Science.gov (United States)

    Steg, Linda; Perlaviciute, Goda; van der Werff, Ellen

    2015-01-01

    Global climate change threatens the health, economic prospects, and basic food and water sources of people. A wide range of changes in household energy behavior is needed to realize a sustainable energy transition. We propose a general framework to understand and encourage sustainable energy behaviors, comprising four key issues. First, we need to identify which behaviors need to be changed. A sustainable energy transition involves changes in a wide range of energy behaviors, including the adoption of sustainable energy sources and energy-efficient technology, investments in energy efficiency measures in buildings, and changes in direct and indirect energy use behavior. Second, we need to understand which factors underlie these different types of sustainable energy behaviors. We discuss three main factors that influence sustainable energy behaviors: knowledge, motivations, and contextual factors. Third, we need to test the effects of interventions aimed to promote sustainable energy behaviors. Interventions can be aimed at changing the actual costs and benefits of behavior, or at changing people's perceptions and evaluations of different costs and benefits of behavioral options. Fourth, it is important to understand which factors affect the acceptability of energy policies and energy systems changes. We discuss important findings from psychological studies on these four topics, and propose a research agenda to further explore these topics. We emphasize the need of an integrated approach in studying the human dimensions of a sustainable energy transition that increases our understanding of which general factors affect a wide range of energy behaviors as well as the acceptability of different energy policies and energy system changes.

  3. Roles of Animation Tools in Understanding Programming Concepts

    Science.gov (United States)

    Moreno, Andres; Joy, Mike; Sutinen, Erkki

    2013-01-01

    Computer generated animations are resources used to explain how programs are executed in order to clarify the relevant programming concepts. However, whilst trying to understand new programming concepts it is not clear how and when students benefit from an animation if they are using the tool on their own. To clarify the role of an animation tool…

  4. Future Science Teachers' Understandings of Diffusion and Osmosis Concepts

    Science.gov (United States)

    Tomazic, Iztok; Vidic, Tatjana

    2012-01-01

    The concepts of diffusion and osmosis cross the disciplinary boundaries of physics, chemistry and biology. They are important for understanding how biological systems function. Since future (pre-service) science teachers in Slovenia encounter both concepts at physics, chemistry and biology courses during their studies, we assessed the first-,…

  5. Assessing Understanding of the Energy Concept in Different Science Disciplines

    Science.gov (United States)

    Park, Mihwa; Liu, Xiufeng

    2016-01-01

    Energy is one of the most central and richly connected ideas across all science disciplines. The purpose of this study was to develop a measurement instrument for assessing students' understanding of the energy concept within and across different science disciplines. To achieve this goal, the Inter-Disciplinary Energy concept Assessment (IDEA) was…

  6. Sustainability of Italian wines: Knowledge, understanding, and interest of consumers

    Directory of Open Access Journals (Sweden)

    Borra Danielle

    2014-01-01

    Full Text Available The continuous consumption of resources and the progressive climatic changes have contributed to develop a new range of products with a “greener” vocation. After the shift to organic and biodynamic production, companies have started to promote products' sustainability. The wine sector has undergone a transformation connected with the emergence of several projects related to the concept of sustainability. But what the consumer knows and thinks of all this? In this regard, it was carried out a study about the perception of the consumer on issues related to sustainability. The goals are multiple: to define the concept of sustainability perceived by consumers, to evaluate the spread of eco-friendly products, to measure the interest and willingness in spending on these products and finally to assess the knowledge of the main brands that identify some sustainable projects. Thanks to this first part that fits into a larger study still in progress, it was possible to obtain an initial assessment of the motivations that influence the purchase of wine, learn more about the consumer on these issues and assess the prevalence of brands associated with each of these major projects on the Italian scene.

  7. Teaching Art a Greener Path: Integrating Sustainability Concepts of Interior Design Curriculum into the Art Education Curriculum

    Science.gov (United States)

    Hasio, Cindy; Crane, Tommy J.

    2014-01-01

    Interior design is seldom integrated within the general art education curriculum because the subject matter is generally segregated as a commercial art. However, the importance of interior design concepts of sustainability in art education can really help a student understand the scale and proportion of space and mass, and how sustainability is…

  8. INTELLIGENT NETWORKS, SMART GRIDS CONCEPT, CRUCIAL TECHNOLOGIES FOR SUSTAINABLE DEVELOPMENT

    Directory of Open Access Journals (Sweden)

    Constantin RADU

    2011-05-01

    Full Text Available In this article is presented the concept of smart grids, a very important technology for sustainable development. In the context of globalization of the world lives in an increasingly complex security environment, with rapid changes, some obvious, others less obvious implications in the short, medium or long term, international, national, local and up to every citizen. All countries in the globalized world economy is facing energy problems in terms of climate change have intensified in the twentieth century.

  9. Sustainability Management in Agribusiness: Challenges, Concepts, Responsibilities and Performance

    Directory of Open Access Journals (Sweden)

    Nina Friedrich

    2012-12-01

    Full Text Available The idea of sustainable management has recently gained growing attention in the agribusiness sector. This is mainly due to a widespread discontent with the industrialization of agricultural production and food processing and growing public pressure on agribusiness firms to implement more sustainable management practices. In this paper we present the results of an explorative empirical study of sustainability management in German agribusiness firms. The study shows that agribusiness firms have developed a broad understanding of sustainability management and perceive a multi-facetted spectrum of societal demands they have to meet. The most important arguments for implementing more sustainable management practices are that companies have to make sure that they are trusted by society in the long run and that the perception of a company by external stakeholders has become more and more important. The companies surveyed know quite a number of sustainability programmes and standards, but the number of companies that actually participate in these initiatives is much smaller. Nonetheless, the majority of the respondents feels that their company is more successful with regard to sustainability management than industry average.

  10. Pre-Service Teachers' Conceptions of Education for Sustainability

    Science.gov (United States)

    Evans, Neus; Whitehouse, Hilary; Hickey, Ruth

    2012-01-01

    Environmental education researchers argue that pre-service teachers have a limited understanding of education for sustainability. The research described in this article applies a phenomenographic approach to investigating variations in how a representative cohort of 30 pre-service teachers, at various stages of completing an education degree at a…

  11. How Do Students Acquire an Understanding of Logarithmic Concepts?

    Science.gov (United States)

    Mulqueeny, Ellen

    2012-01-01

    The use of logarithms, an important tool for calculus and beyond, has been reduced to symbol manipulation without understanding in most entry-level college algebra courses. The primary aim of this research, therefore, was to investigate college students' understanding of logarithmic concepts through the use of a series of instructional tasks…

  12. Understanding concepts of place in recreation research and management.

    Science.gov (United States)

    Linda. E. Kruger; Troy E. Hall; Maria C. Stiefel

    2008-01-01

    Over a 3-day weekend in the spring of 2004 a group of scientists interested in extending understanding of place as applied in recreation research and management convened a working session in Portland, Oregon. The purpose of the gathering was to clarify their understanding of place-related concepts, approaches to the study of people-place relations, and the application...

  13. Teaching relational understandings of sustainability in engineering education

    DEFF Research Database (Denmark)

    Lauridsen, Erik Hagelskjær; Jørgensen, Ulrik

    and the availability of this source in specific locations. Another example is how the importance of material composition depends on the expected lifetime and the fate of the materials in the local end-of-life system. Such idealised and abstract descriptions where the contextual relations of production, use...... and disposal systems are omitted, lead to a fragmented understanding of actual sustainability challenges. On the positive side such parametric descriptions of sustainability issues make them comparable to other disciplines like material science, where a very extensive parameterisation already exists....... This paper explores how such alternative descriptions are pursued in different courses of the Sustainable Design engineering program at Aalborg University. These approaches include meta-descriptions of sustainability assessment methods, descriptions of technology as elements in socio-technical regimes...

  14. Renewable energy for sustainable urban development: Redefining the concept of energisation

    International Nuclear Information System (INIS)

    Nissing, Christian; Blottnitz, Harro von

    2010-01-01

    It is widely recognised that access to and supply of modern energy play a key role in poverty alleviation and sustainable development. The emerging concept of energisation seems to capture this idea; however, there is no unified definition at the point of writing. In this paper, the aim is to propose a new and comprehensive definition of the concept of energisation. The chronological development of this concept is investigated by means of a literature review, and a subsequent critique is offered of current definitions and usage of the concept. Building upon these first insights, two planned cases of energisation in post-apartheid South Africa are contrasted to an unplanned one: they are the national electrification programme, the integrated energy centres initiative, and a wood fuelled local economy in Khayelitsha, Cape Town's biggest township. Especially the latter case, based on original data collection by the authors, provides a new understanding of specific elements affecting energisation. Finally, a new and detailed definition of the concept of sustainable energisation is developed by systematically reiterating three key elements: the target group, the concept of energy services, and sustainable development.

  15. Renewable energy for sustainable urban development. Redefining the concept of energisation

    Energy Technology Data Exchange (ETDEWEB)

    Nissing, Christian [Environmental and Process Systems Engineering Research Group, Department of Chemical Engineering, University of Cape Town, Private Bag X3, Rondebosch 7701, Cape Town (South Africa); Von Blottnitz, Harro [Environmental and Process Systems Engineering Research Group, Department of Chemical Engineering, University of Cape Town, Private Bag X3, Rondebosch 7701, Cape Town (South Africa); African Centre for Cities, University of Cape Town (South Africa)

    2010-05-15

    It is widely recognised that access to and supply of modern energy play a key role in poverty alleviation and sustainable development. The emerging concept of energisation seems to capture this idea; however, there is no unified definition at the point of writing. In this paper, the aim is to propose a new and comprehensive definition of the concept of energisation. The chronological development of this concept is investigated by means of a literature review, and a subsequent critique is offered of current definitions and usage of the concept. Building upon these first insights, two planned cases of energisation in post-apartheid South Africa are contrasted to an unplanned one: they are the national electrification programme, the integrated energy centres initiative, and a wood fuelled local economy in Khayelitsha, Cape Town's biggest township. Especially the latter case, based on original data collection by the authors, provides a new understanding of specific elements affecting energisation. Finally, a new and detailed definition of the concept of sustainable energisation is developed by systematically reiterating three key elements: the target group, the concept of energy services, and sustainable development. (author)

  16. Renewable energy for sustainable urban development: Redefining the concept of energisation

    Energy Technology Data Exchange (ETDEWEB)

    Nissing, Christian [Environmental and Process Systems Engineering Research Group, Department of Chemical Engineering, University of Cape Town, Private Bag X3, Rondebosch 7701, Cape Town (South Africa); Blottnitz, Harro von, E-mail: Harro.vonBlottnitz@uct.ac.z [Environmental and Process Systems Engineering Research Group, Department of Chemical Engineering, University of Cape Town, Private Bag X3, Rondebosch 7701, Cape Town (South Africa); African Centre for Cities, University of Cape Town (South Africa)

    2010-05-15

    It is widely recognised that access to and supply of modern energy play a key role in poverty alleviation and sustainable development. The emerging concept of energisation seems to capture this idea; however, there is no unified definition at the point of writing. In this paper, the aim is to propose a new and comprehensive definition of the concept of energisation. The chronological development of this concept is investigated by means of a literature review, and a subsequent critique is offered of current definitions and usage of the concept. Building upon these first insights, two planned cases of energisation in post-apartheid South Africa are contrasted to an unplanned one: they are the national electrification programme, the integrated energy centres initiative, and a wood fuelled local economy in Khayelitsha, Cape Town's biggest township. Especially the latter case, based on original data collection by the authors, provides a new understanding of specific elements affecting energisation. Finally, a new and detailed definition of the concept of sustainable energisation is developed by systematically reiterating three key elements: the target group, the concept of energy services, and sustainable development.

  17. Mapping What Young Students Understand and Value Regarding Sustainable Development

    Science.gov (United States)

    Manni, Annika; Sporre, Karin; Ottander, Christina

    2013-01-01

    This paper presents the results of a study carried out to investigate how 10-12 year old Swedish students understand and value the issue of sustainable development. The responses from open-ended questions in a questionnaire have been analyzed through a content analysis based on a phenomenographic approach. The results show that there are…

  18. Understanding robustness as an image of sustainable agriculture

    NARCIS (Netherlands)

    Goede, de D.M.

    2014-01-01

    The general aim of the research described in this thesis is to contribute to a better understanding of the conceptualisation of robustness in agricultural science as well as its relevance to sustainability. Robustness rapidly gained attention as a potential solution for a variety of

  19. Understanding robustness as an image of sustainable agriculture

    NARCIS (Netherlands)

    Goede, de D.M.

    2014-01-01

      The general aim of the research described in this thesis is to contribute to a better understanding of the conceptualisation of robustness in agricultural science as well as its relevance to sustainability. Robustness rapidly gained attention as a potential solution for a variety of problems

  20. The added value of sustainability motivations in understanding sustainable food choices

    NARCIS (Netherlands)

    Verain, M.C.D.; Onwezen, M.C.; Sijtsema, S.J.; Dagevos, H.

    2016-01-01

    Understanding consumer food choices is crucial to stimulate sustainable food consumption. Food choice motives are shown to be relevant in understanding consumer food choices. However, there is a focus on product motives, such as price and taste, whereas process motives (i.e. environmental welfare)

  1. Sustainability of utility-scale solar energy: Critical environmental concepts

    Science.gov (United States)

    Hernandez, R. R.; Moore-O'Leary, K. A.; Johnston, D. S.; Abella, S.; Tanner, K.; Swanson, A.; Kreitler, J.; Lovich, J.

    2017-12-01

    Renewable energy development is an arena where ecological, political, and socioeconomic values collide. Advances in renewable energy will incur steep environmental costs to landscapes in which facilities are constructed and operated. Scientists - including those from academia, industry, and government agencies - have only recently begun to quantify trade-off in this arena, often using ground-mounted, utility-scale solar energy facilities (USSE, ≥ 1 megawatt) as a model. Here, we discuss five critical ecological concepts applicable to the development of more sustainable USSE with benefits over fossil-fuel-generated energy: (1) more sustainable USSE development requires careful evaluation of trade-offs between land, energy, and ecology; (2) species responses to habitat modification by USSE vary; (3) cumulative and large-scale ecological impacts are complex and challenging to mitigate; (4) USSE development affects different types of ecosystems and requires customized design and management strategies; and (5) long-term ecological consequences associated with USSE sites must be carefully considered. These critical concepts provide a framework for reducing adverse environmental impacts, informing policy to establish and address conservation priorities, and improving energy production sustainability.

  2. Developing a holistic framework to understand the contribution of sustainable public procurement to the development of more sustainable business models

    NARCIS (Netherlands)

    Witjes, S.; Lozano, R.

    2015-01-01

    The concept of sustainable development has encouraged companies to re-asses the 9 way they do business. The integration of sustainability requirements into the 10 procurement process, leading to sustainable procurement, can motivate companies to 11 develop more sustainable business models. 12

  3. Threshold concepts as barriers to understanding climate science

    Science.gov (United States)

    Walton, P.

    2013-12-01

    Whilst the scientific case for current climate change is compelling, the consequences of climate change have largely failed to permeate through to individuals. This lack of public awareness of the science and the potential impacts could be considered a key obstacle to action. The possible reasons for such limited success centre on the issue that climate change is a complex subject, and that a wide ranging academic, political and social research literature on the science and wider implications of climate change has failed to communicate the key issues in an accessible way. These failures to adequately communicate both the science and the social science of climate change at a number of levels results in ';communication gaps' that act as fundamental barriers to both understanding and engagement with the issue. Meyer and Land (2003) suggest that learners can find certain ideas and concepts within a discipline difficult to understand and these act as a barrier to deeper understanding of a subject. To move beyond these threshold concepts, they suggest that the expert needs to support the learner through a range of learning experiences that allows the development of learning strategies particular to the individual. Meyer and Land's research into these threshold concepts has been situated within Economics, but has been suggested to be more widely applicable though there has been no attempt to either define or evaluate threshold concepts to climate change science. By identifying whether common threshold concepts exist specifically in climate science for cohorts of either formal or informal learners, scientists will be better able to support the public in understanding these concepts by changing how the knowledge is communicated to help overcome these barriers to learning. This paper reports on the findings of a study that examined the role of threshold concepts as barriers to understanding climate science in a UK University and considers its implications for wider

  4. Towards Concept Understanding relying on Conceptualisation in Constructivist Learning

    DEFF Research Database (Denmark)

    Badie, Farshad

    2017-01-01

    This research works within the framework of constructivist learning (based on constructivist epistemology) and examines learning as an activity of construction, and it posits that knowledge acquisition (and learning) are transformative through self-involvement in some subject matter. Thus it leads...... and understandings over their mental structures in the framework of constructivism, and I will clarify my logical [and semantic] conceptions of humans’ concept understandings. This research focuses on philosophy of education and on logics of human learning. It connects with the topics ‘Cognition in Education...

  5. The energy inside the concept of the sustainable development

    International Nuclear Information System (INIS)

    Szauer, Maria Teresa

    1999-01-01

    The intimately bound of two thematic basic conceptual schemes are shown: The climatic change and the paper of the energy inside the concept of sustainable development. It is presented a description of the green house effect, their causes and consequences. They are analyzed, making emphasis in the differences among the countries of the north and of the south, the consumption of natural resources, the population's growth, and the deforestation like main causes of the climatic change. Lastly is discussed the international negotiations related with the topic

  6. Understanding regional metabolism for a sustainable development of urban systems.

    Science.gov (United States)

    Baccini, P

    1996-06-01

    Cities are the most complex forms of settlements which man has built in the course of his cultural development. Their "metabolism" is connected with the world economy and is run mainly by fossil energy carriers. Up to now there are no validated models for the evaluation of a sustainable development of urban regions.The guidelines for a "sustainable development" suggest the reduction of resource consumption. The article is concerned with the problem of how the "sustainable-development concept" can be transformed from a global to a regional scale. In urban settlements the strategy of final storage should be applied. By this, the subsystem waste management can be transformed within 10 to 15 years to a "sustainable status".With regard to the system "agronomy", the article concludes that agriculture in urban systems should focus on food production instead of promoting reduction of food production in favour of energy plants, which is not a suitable strategy.The main problems are the energy carriers. Transformation to a "sustainble status" is only possible by a reconstruction of the urban system, i.e. of buildings and the transportation network. The rate determining step in achieving such a status is the change in the fabric of buildings and in the type of transportation networks. The reconstruction of an urban system needs, mainly for economical reasons, a time period of two generations.

  7. Understanding the concept of nationally appropriate mitigation action

    Energy Technology Data Exchange (ETDEWEB)

    Sharma, S.; Desgain, D.

    2013-05-15

    This publication is intended to enable national policy makers and other stakeholders, such as the private sector and technical experts, to acquaint themselves with the concept of NAMA. It aims to provide a comprehensive overview of the Nationally Appropriate Mitigation Action (NAMA) concept and enhance the understanding of NAMAs by explaining the underlying decisions of the Conference of the Parties in layman's terms. The first chapter describes how the concept of NAMA emerged in the context of the negotiations on climate change. The chapter gives an overview of how the concepts of NAMA and related MRV and financing issues have evolved through the different COPs. The second chapter clarifies the understanding of NAMAs in the context of the global temperature goal, and moves on to discuss the legal nature and scope of NAMAs. The chapter subsequently analyses the diversity of NAMAs submitted by developing countries to the UNFCCC, and ends by proposing a structure for formal submission of a NAMA. The third chapter specifically addresses the concept of measurement, reporting and verification (MRV), and describes the implications for countries implementing the MRV requirements. The last chapter discusses institutional arrangements, under the Convention, for providing financing to develop and implement NAMAs. The chapter also briefly discusses the different financial sources for implementing NAMAs, and concludes by explaining the concept of incremental cost in this specific context. (Author)

  8. Medical students' understanding of the concept of a soul.

    Science.gov (United States)

    Martyn, Helen; Barrett, Anthony; Nicholson, Helen D

    2013-01-01

    The concept of a soul has been discussed throughout religious, philosophical, and scientific circles, yet no definitive description exists. Recent interviews with medical students during the production of a documentary film identified that many believed in the concept of a soul. This study explores students' understanding of the concept of a soul. The 2011 cohort of second-year medical students at the University of Otago in Dunedin, New Zealand were invited to participate in an online survey with a free text response asking students to describe their understanding of the soul. The descriptions of the soul included the soul as a "spirit" or "life force" and some described the soul as giving a person their "values" and "personality." Students discussed the location of a soul with most stating that the soul was not attached to the body, but others mentioned the heart or the brain as the seat of the soul. A common theme related to the mortality of the soul emerged, with most believing that the soul left the body at death. Some students' concept of a soul was related to their religious beliefs, while others who did not believe in the concept of a soul described it as a "myth" used to bring comfort at the time of death. Medical students have varied opinions on the concept and importance of the soul. It is important to recognize the diversity of views when exploring the process of death and spirituality with medical students. © 2013 American Association of Anatomists.

  9. Grounded understanding of abstract concepts: The case of STEM learning.

    Science.gov (United States)

    Hayes, Justin C; Kraemer, David J M

    2017-01-01

    Characterizing the neural implementation of abstract conceptual representations has long been a contentious topic in cognitive science. At the heart of the debate is whether the "sensorimotor" machinery of the brain plays a central role in representing concepts, or whether the involvement of these perceptual and motor regions is merely peripheral or epiphenomenal. The domain of science, technology, engineering, and mathematics (STEM) learning provides an important proving ground for sensorimotor (or grounded) theories of cognition, as concepts in science and engineering courses are often taught through laboratory-based and other hands-on methodologies. In this review of the literature, we examine evidence suggesting that sensorimotor processes strengthen learning associated with the abstract concepts central to STEM pedagogy. After considering how contemporary theories have defined abstraction in the context of semantic knowledge, we propose our own explanation for how body-centered information, as computed in sensorimotor brain regions and visuomotor association cortex, can form a useful foundation upon which to build an understanding of abstract scientific concepts, such as mechanical force. Drawing from theories in cognitive neuroscience, we then explore models elucidating the neural mechanisms involved in grounding intangible concepts, including Hebbian learning, predictive coding, and neuronal recycling. Empirical data on STEM learning through hands-on instruction are considered in light of these neural models. We conclude the review by proposing three distinct ways in which the field of cognitive neuroscience can contribute to STEM learning by bolstering our understanding of how the brain instantiates abstract concepts in an embodied fashion.

  10. A Formal Semantics for Concept Understanding relying on Description Logics

    DEFF Research Database (Denmark)

    Badie, Farshad

    2017-01-01

    In this research, Description Logics (DLs) will be employed for logical description, logical characterisation, logical modelling and ontological description of concept understanding in terminological systems. It’s strongly believed that using a formal descriptive logic could support us in reveali...

  11. An understanding of environmental concepts and issues among ...

    African Journals Online (AJOL)

    The major aim of this study is to assess the knowledge and understanding of Grade 10-12 students about selected environmental concepts and issues such as population, ozone layer, green house effect, and acid rain. Another aim of this study is to find out whether there is any difference between the knowledge and ...

  12. OCRA, a Mobile Learning Prototype for Understanding Chemistry Concepts

    Science.gov (United States)

    Shariman, Tenku Putri Norishah; Talib, Othman

    2017-01-01

    This research studies the effects of an interactive multimedia mobile learning application on students' understanding of chemistry concepts. The Organic Chemistry Reaction Application (OCRA), a mobile learning prototype with touch screen commands, was applied in this research. Through interactive multimedia techniques, students can create and…

  13. The Different Benefits from Different Gestures in Understanding a Concept

    Science.gov (United States)

    Kang, Seokmin; Hallman, Gregory L.; Son, Lisa K.; Black, John B.

    2013-01-01

    Explanations are typically accompanied by hand gestures. While research has shown that gestures can help learners understand a particular concept, different learning effects in different types of gesture have been less understood. To address the issues above, the current study focused on whether different types of gestures lead to different levels…

  14. Rural women's understanding of the concept of menopause in ...

    African Journals Online (AJOL)

    The findings of the study indicated that the rural women in Mutale community had the common traditional understanding of the concept menopause, that blood is gone, old age, it was God' nature of doing things and that cessation of menstruation was a normal and natural transition. They could not attach cessation of ...

  15. an understanding of environmental concepts and issues among

    African Journals Online (AJOL)

    environmental knowledge, attitudes and concern are also conflicting. As there is disagreement about the direction of relationships between different variables, therefore, there is a need to investigate the understanding of environmental concepts and issues among Grade 10-12 students from rural and urban schools.

  16. Improving students’ understanding of mathematical concept using maple

    Science.gov (United States)

    Ningsih, Y. L.; Paradesa, R.

    2018-01-01

    This study aimed to improve students’ understanding of mathematical concept ability through implementation of using Maple in learning and expository learning. This study used a quasi-experimental research with pretest-posttest control group design. The sample on this study was 61 students in the second semester of Mathematics Education of Universitas PGRI Palembang, South Sumatera in academic year 2016/2017. The sample was divided into two classes, one class as the experiment class who using Maple in learning and the other class as a control class who received expository learning. Data were collective through the test of mathematical initial ability and mathematical concept understanding ability. Data were analyzed by t-test and two ways ANOVA. The results of this study showed (1) the improvement of students’ mathematical concept understanding ability who using Maple in learning is better than those who using expository learning; (2) there is no interaction between learning model and students’ mathematical initial ability toward the improvement of students’ understanding of mathematical concept ability.

  17. Investigating High School Students' Understanding of Chemical Equilibrium Concepts

    Science.gov (United States)

    Karpudewan, Mageswary; Treagust, David F.; Mocerino, Mauro; Won, Mihye; Chandrasegaran, A. L.

    2015-01-01

    This study investigated the year 12 students' (N = 56) understanding of chemical equilibrium concepts after instruction using two conceptual tests, the "Chemical Equilibrium Conceptual Test 1" ("CECT-1") consisting of nine two-tier multiple-choice items and the "Chemical Equilibrium Conceptual Test 2"…

  18. Understandability of Goal Concepts by Requirements Engineering Experts

    NARCIS (Netherlands)

    Engelsman, W.; Wieringa, Roelf J.

    2014-01-01

    ARMOR is a graphical language for modeling business goals and enterprise architectures. In previous work we have identified problems with understandability of goal-oriented concepts for practicing enterprise architects. In this paper we replicate the earlier quasi-experiments with experts in

  19. Understanding the Dialectical Relations Between Everyday Concepts and Scientific Concepts Within Play-Based Programs

    Science.gov (United States)

    Fleer, Marilyn

    2009-03-01

    In recent times there has been an enormous interest in Vygotsky’s writing on conceptual development, particularly his insights on the differences between everyday and scientific thinking. In drawing upon cultural-historical theory, this paper seeks to examine the relations between everyday concepts and scientific concepts within playful contexts, such as preschools, with a view to better understanding how very young children develop conceptual understandings in science. This paper presents an overview of a study which sought to map the transformation and appropriation of scientific concepts within two early childhood settings. Approximately ten weeks of data gathering took place, with video recordings, field notes, photographic documentation, and child and teacher interviews for recording child concept formation within these naturalistic settings. The findings indicate that when teacher programs are more oriented towards concepts rather than materials, children’s play is focused on conceptual connections. Importantly, the study showed that: It was possible to map the multiple and dynamic levels or stratas of thinking that a child or group of children may exhibit within play-based contexts; An analysis of ‘unorganised heaps’ and ‘complexive thinking’ evident in conceptually or materially oriented play-based programs can be determined; the dialectical relations between everyday concepts and scientific concepts in play-based programs can be understood; and greater understanding about the nature of concept formation in situated playful contexts have been possible.

  20. Environmental sustainability: Understanding young adults' learning, thinking, and actions

    Science.gov (United States)

    Kola-Olusanya, Anthony O.

    This thesis explores the ways in which young-adults' environmental learning and experiences influence their decision to live sustainably. In particular, this thesis focuses on young adults' environmental and sustainability learning. It elaborates on young peoples' views about environmental and sustainability issues, such as climate change, the sources for their learning about these issues, and how young adults' learning encounters, in turn, affect their actions toward environmental protection and decision-making. Through a series of in-depth individual interviews with 18 young adults from three universities in southeastern Ontario, this qualitative study provides in-depth insight into young adults' understanding, learning experiences, and actions in relation to environmental and sustainability issues. Employing a Contextual Model of Learning framework the narratives of the young adults in this study are analyzed and discussed within three overlapping environmental learning contexts: personal, sociocultural, and physical settings. This framework allows for an examination of the complex interactions and relationships that shape how and where environmental learning occurs. The findings in this study suggest that the three overlapping learning contexts, that is the personal, sociocultural, and physical play an important role in shaping young adults' learning about environmental and sustainability issues. The data reveal that despite the unavailability or near-absence of environmental studies and education within the formal school curriculum (particularly at the elementary and high school levels), the young adults rely on other locations for learning, such as the internet, environmental non-governmental organisations (ENGOs), television, and family. In light of this, the research participants suggest the re-introduction of environmental programs and content in the school curriculum. Finally, the results of this study demonstrate the centrality of knowledge and

  1. Healthy meals at worksite canteens - Social shaping as a framework for understanding sustainable interventions

    DEFF Research Database (Denmark)

    Thorsen, Anne Vibeke

    sustainability of an F&V intervention at five worksites and uses a combination of social shaping and a worksites policy process perspective as a framework for understanding sustainable interventions. The aims of this thesis were to: 1. Investigate if the meals served in the worksite canteens are healthy...... the sustainability if this implies frequent changes of worksite employees and new employees question the F&V intensive food supply. The engagement of the canteen manager and the ability to develop strategies for integration of more F&V in the food supply and good cooperation with the F&V suppliers also play...... by the involved local actors' ideas of health and nutrition and also by their concepts of how these ideas interrelate with the worksite’s working conditions and working performance. A combination of a social shaping approach and a worksite policy process approach to the shaping and embedding of healthy worksite...

  2. The Concept of Embodied Knowledge for Understanding Organisational Knowledge Creation

    Science.gov (United States)

    Matsudaira, Yoshito; Fujinami, Tsutomu

    Our goal in this paper is to understand, in the light of intuition and emotion, the problem-finding and value judgments by organisational members that are part of organisational knowledge creation. In doing so, we emphasise the importance of embodied knowledge of organisations as an explanatory concept. We propose ways of approaching intuition and sense of value as these are posited as objects of research. Approaches from the first, second, and third-person viewpoints result in a deeper grasp of embodied knowledge of organisations. Important in organisational knowledge creation is embodied knowledge of organisations, which has a bearing on problem-finding before any problem-solving or decision making takes place, and on value judgments about the importance of problems that have been found. This article proposes the concept of embodied knowledge, and, by introducing it, gives a profound understanding of that facet of organisational knowledge creation characterised by tacit knowledge held by organisational individuals.

  3. Sustainable Agro-Industrial Ecology Concept of the Madura Island

    Science.gov (United States)

    Widjaya, Joyce Martha; Tanuwidjaja, Gunawan

    2017-07-01

    Madura as one small island in East Java Province, Indonesia faced many challenges due to limited transportation connectivity, limited water resources and karst geology. Due to this reasons, the Government of Indonesia proposed a strategic plan to improve the development of the island to Surabaya, the largest port for the Eastern of Indonesia. It was started with building the Surabaya - Madura (SuraMadu) Bridge with 5.7 km length in 2003. The bridge was finally completed in 2009, improving the traffic flow into the island and development of Madura Island. Unfortunately, the strategy would not be comprehensive without strategic development of the Madura Island, especially in Bangkalan District (Kabupaten Bangkalan). The Central Government has proposed a Green Industry with zero waste and clean energy concept. This industry and port would process the agriculture products from Madura for the export and Eastern part of Indonesia market. Therefore, an industrial ecology concept was needed to achieve the sustainable green industry for Eastern of Indonesia.

  4. Analysis of a sustainable gas cooled fast breeder reactor concept

    International Nuclear Information System (INIS)

    Kumar, Akansha; Chirayath, Sunil S.; Tsvetkov, Pavel V.

    2014-01-01

    Highlights: • A Thorium-GFBR breeder for actinide recycling ability, and thorium fuel feasibility. • A mixture of 232 Th and 233 U is used as fuel and LWR used fuel is used. • Detailed neutronics, fuel cycle, and thermal-hydraulics analysis has been presented. • Run this TGFBR for 20 years with breeding of 239 Pu and 233 U. • Neutronics analysis using MCNP and Brayton cycle for energy conversion are used. - Abstract: Analysis of a thorium fuelled gas cooled fast breeder reactor (TGFBR) concept has been done to demonstrate the self-sustainability, breeding capability, actinide recycling ability, and thorium fuel feasibility. Simultaneous use of 232 Th and used fuel from light water reactor in the core has been considered. Results obtained confirm the core neutron spectrum dominates in an intermediate energy range (peak at 100 keV) similar to that seen in a fast breeder reactor. The conceptual design achieves a breeding ratio of 1.034 and an average fuel burnup of 74.5 (GWd)/(MTHM) . TGFBR concept is to address the eventual shortage of 235 U and nuclear waste management issues. A mixture of thorium and uranium ( 232 Th + 233 U) is used as fuel and light water reactor used fuel is utilized as blanket, for the breeding of 239 Pu. Initial feed of 233 U has to be obtained from thorium based reactors; even though there are no thorium breeders to breed 233 U a theoretical evaluation has been used to derive the data for the source of 233 U. Reactor calculations have been performed with Monte Carlo radiation transport code, MCNP/MCNPX. It is determined that this reactor has to be fuelled once every 5 years assuming the design thermal power output as 445 MW. Detailed analysis of control rod worth has been performed and different reactivity coefficients have been evaluated as part of the safety analysis. The TGFBR concept demonstrates the sustainability of thorium, viability of 233 U as an alternate to 235 U and an alternate use for light water reactor used fuel as a

  5. Ecological networks: a spatial concept for multi-actor planning of sustainable landscapes

    NARCIS (Netherlands)

    Opdam, P.F.M.; Steingröver, E.G.; Rooij, van S.A.M.

    2006-01-01

    In this paper, we propose the ecological network concept as a suitable basis for inserting biodiversity conservation into sustainable landscape development. For landscapes to be ecologically sustainable, the landscape structure should support those ecological processes required for the landscape to

  6. A Unique Historical Case to Understand the Present Sustainable Development.

    Science.gov (United States)

    Barona, Astrid; Etxebarria, Begoña; Aleksanyan, Aida; Gallastegui, Gorka; Rojo, Naiara; Diaz-Tena, Estibaliz

    2018-02-01

    Every innovation seeks to become a profitable business, with this considered to be the engine for economic prosperity. When an innovation is revolutionary, its long-term consequences can be revolutionary too. The Haber-Bosh process for ammonia synthesis is arguably the twentieth century's most significant innovation, and its importance to global food production and its impact on the environment are not expected to diminish over the coming decades. The historical case of the ammonia synthesis process invented by Fritz Haber and the ensuing innovation provides an incomparable opportunity to illustrate the interactions across contemporary needs, prominent scientists, political concerns, moral dilemmas, ethics, governance and environmental implications at a time when the concept of sustainability was still in its infancy. Despite its high economic and environmental costs, no cleaner or more efficient sustainable alternative has so far been found, and so replacing this "old" innovation that still "feeds" a large part of the world's population does not appear to be on the cards in the near future.

  7. Understanding of Earth and Space Science Concepts: Strategies for Concept-Building in Elementary Teacher Preparation

    Science.gov (United States)

    Bulunuz, Nermin; Jarrett, Olga S.

    2009-01-01

    This research is concerned with preservice teacher understanding of six earth and space science concepts that are often taught in elementary school: the reason for seasons, phases of the moon, why the wind blows, the rock cycle, soil formation, and earthquakes. Specifically, this study examines the effect of readings, hands-on learning stations,…

  8. Integrated weed management for sustainable rice production: concepts, perspectives and options

    International Nuclear Information System (INIS)

    Amartalingam Rajan

    2002-01-01

    Weed management has always been in some way integrated with cultural and biological methods, probably occurring more fortuitously than purposefully. Experience has shown that repeated use of any weed control technique especially in monocultures production systems results in rapid emergence of weeds more adapted to the new practice. In intensive high input farming systems, heavy selection pressure for herbicide tolerant weeds and the environmental impacts of these inputs are important tissues that require a good understanding of agroecosystem for successful integration of available options. Rice culture, in particular flooded rice culture has always employed integration through an evolution of management practices over the generations. However, a vast majority office farmers in Asia have yet to achieve the high returns realised by farmers elsewhere, where a near optimum combination of high inputs are being effectively integrated for maximum productivity. In addition to technological and management limitations, farmers in developing countries are faced with social, economic and policy constraints. On the other hand, farmers who had achieved considerable increases in productivity through labour replacing technologies, in particular direct seeding with the aid of herbicides, are now faced with issues related to environmental concerns due to high levels of these inputs. The issues facing weed scientists and farmers alike in managing weeds effectively and in a manner to ensure sustainability have become more challenging than ever before. In the last two decades, no issue has been discussed so. intensively as Sustainable Farming, Sustainable Agriculture or Alternative Agriculture within the broader global concept of Sustainable Development. To address these challenges a clear perspective of sustainable farming is essential. This paper addresses these concepts, perspectives and options for choices in weed management for sustainable rice production. (Author)

  9. Financial Understanding: A Phenomenographic Access to Students’ Concepts of Credits

    Directory of Open Access Journals (Sweden)

    Sandra Speer

    2013-07-01

    Full Text Available Financial education has become a more popular part of general education in schools. Different social and economic backgrounds as well as experiences influence the students’ conceptualization of the same financial phenomenon. Therefore, phenomenography is an appropriate research strategy for investigating students’ deeper understanding of financial core concepts. Our research concentrates on ‘credit’ as a central phenomenon. Thirteen focus groups made up of secondary school students and university students in Germany discussed varying examples of taking out a loan. Systematizing students’ conceptualizations, the outcome space consists of four main categories: attitudes, needs, credit terms and calculation. On a deeper level we found further subcategories. The results of our explorative study can guide a chronology of teaching different concepts as well as further research.

  10. Applying the food multimix concept for sustainable and nutritious diets.

    Science.gov (United States)

    Zotor, F B; Ellahi, B; Amuna, P

    2015-11-01

    Despite a rich and diverse ecosystem, and biodiversity, worldwide, more than 2 billion people suffer from micronutrient malnutrition or hidden hunger. Of major concern are a degradation of our ecosystems and agricultural systems which are thought to be unsustainable thereby posing a challenge for the future food and nutrition security. Despite these challenges, nutrition security and ensuring well balanced diets depend on sound knowledge and appropriate food choices in a complex world of plenty and want. We have previously reported on how the food multimix (FMM) concept, a food-based and dietary diversification approach can be applied to meet energy and micronutrient needs of vulnerable groups through an empirical process. Our objective in this paper is to examine how the concept can be applied to improve nutrition in a sustainable way in otherwise poor and hard-to-reach communities. We have reviewed over 100 FMM food recipes formulated from combinations of commonly consumed traditional candidate food ingredients; on average five per recipe, and packaged as per 100 g powders from different countries including Ghana, Kenya, Botswana, Zimbabawe and Southern Africa, India, Mexico, Malaysia and the UK; and for different age groups and conditions such as older infants and young children, pregnant women, HIV patients, diabetes and for nutrition rehabilitation. Candidate foods were examined for their nutrient strengths and nutrient content and nutrient density of recipes per 100 g were compared with reference nutrient intakes for the different population groups. We report on the nutrient profiles from our analysis of the pooled and age-matched data as well as sensory analysis and conclude that locally produced FMM foods can complement local diets and contribute significantly to meet nutrient needs among vulnerable groups in food-insecure environments.

  11. Understanding the Concept of Nationally Appropriate Mitigation Action

    DEFF Research Database (Denmark)

    Sharma, Sudhir; Desgain, Denis DR

    discusses institutional arrangements, under the Convention, for providing financing to develop and implement NAMAs. The chapter also briefly discusses the different financial sources for implementing NAMAs, and concludes by explaining the concept of incremental cost in this specific context....... and related MRV and financing issues have evolved through the different COPs. The second chapter clarifies the understanding of NAMAs in the context of the global temperature goal, and moves on to discuss the legal nature and scope of NAMAs. The chapter subsequently analyses the diversity of NAMAs submitted...

  12. Sustainable urban built environment: Modern management concepts and evaluation methods

    Science.gov (United States)

    Ovsiannikova, Tatiana; Nikolaenko, Mariya

    2017-01-01

    The paper is focused on the analysis of modern concepts in urban development management. It is established that they are based on the principles of ecocentrism and anthropocentrism. The purpose of this research is to develop a system of quality indicators of urban built environment and justification of their application in management of city development. The need for observing the indicators characterizing the urban built environment in the planning of the territory development was proved. Based on the data and reports of the Russian and international organizations the analysis of the existing systems of urban development indicators is made. The suggested solution is to extend the existing indicators systems with that related to urban built environment quality which are recommended for planning urban areas development. The proposed system of indicators includes private, aggregate, normalized, and integrated urban built environment quality indicators using methods of economic-statistical and comparative analysis and index method. Application of these methods allowed calculating the indicators for urban areas of Tomsk Region. The results of calculations are presented in the paper. According to normalized indicators the priority areas for investment and development of urban areas were determined. The scenario conditions allowed estimating changes of quality indicators for urban built environment. Finally, the paper suggests recommendations for making management decisions when creating sustainable environment of life in urban areas.

  13. Design of Concept of Sustainable Marketing Communication Strategy for a Ideal Industrial Enterprise and Practical Applications of this Concept

    Science.gov (United States)

    Šujaková, Monika; Golejová, Simona; Sakál, Peter

    2017-09-01

    In the contribution the authors deal with the design and use of a sustainable marketing communication strategy of an ideal industrial enterprise in the Slovak Republic. The concept of an ideal enterprise is designed to increase the enterprise's sustainable competitiveness through the formation of a corporate image. In the framework of the research, the practical application of the draft concept was realized through a semi-structured interview in the form of propositional logic.

  14. Measurement, collaborative learning and research for sustainable use of ecosystem services: landscape concepts and Europe as laboratory.

    Science.gov (United States)

    Angelstam, Per; Grodzynskyi, Michael; Andersson, Kjell; Axelsson, Robert; Elbakidze, Marine; Khoroshev, Alexander; Kruhlov, Ivan; Naumov, Vladimir

    2013-03-01

    Policies at multiple levels pronounce the need to encompass both social and ecological systems in governance and management of natural capital in terms of resources and ecosystems. One approach to knowledge production and learning about landscapes as social-ecological systems is to compare multiple case studies consisting of large spaces and places. We first review the landscape concepts' biophysical, anthropogenic, and intangible dimensions. Second, we exemplify how the different landscape concepts can be used to derive measurable variables for different sustainability indicators. Third, we review gradients in the three dimensions of the term landscape on the European continent, and propose to use them for the stratification of multiple case studies of social-ecological systems. We stress the benefits of the landscape concepts to measure sustainability, and how this can improve collaborative learning about development toward sustainability in social-ecological systems. Finally, analyses of multiple landscapes improve the understanding of context for governance and management.

  15. Defining sustainability as a social-cultural concept: Citizen panels visiting dairy farms in the Netherlands

    NARCIS (Netherlands)

    Boogaard, B.K.; Oosting, S.J.; Bock, B.B.

    2008-01-01

    The important role of values is very evident when it comes to citizens' concept of sustainability. The present paper had the objective to define sustainability as a socio-cultural concept for livestock production systems. The main research question was: how do Dutch citizens value various aspects of

  16. The Potential of Religion in the Promotion and Implementation of the Concept of Sustainable Development

    Science.gov (United States)

    Sadowski, Ryszard F.

    2017-12-01

    This article presents religion's potential where the promotion and implementation of the concept of sustainable development are concerned. First inspired by Lynn White in the 1960s, discussion on religion's role in the ecological crisis now allows for an honest assessment of the ecological potential of various religious traditions and their contribution to the building of a sustainable world. This article on the one hand points to the religious inspirations behind the concept of sustainable development, and on the other highlights the joint action of representatives of religion and science in the name of sustainable development, as well as the involvement of religions in the concept's implementation.

  17. Mining Concept Maps to Understand University Students' Learning

    Science.gov (United States)

    Yoo, Jin Soung; Cho, Moon-Heum

    2012-01-01

    Concept maps, visual representations of knowledge, are used in an educational context as a way to represent students' knowledge, and identify mental models of students; however there is a limitation of using concept mapping due to its difficulty to evaluate the concept maps. A concept map has a complex structure which is composed of concepts and…

  18. On sustainable development of uranium mining industry in China based on the concept of ecological security

    International Nuclear Information System (INIS)

    Wu Shali; Tai Kaixuan

    2011-01-01

    Ecological security is an important issue for sustainable development of mining industry, on which the development of nuclear industry and nuclear power is based. But uranium mining and processing has larger effect on ecological environment which mainly include tailings, waste rock, waste water, and radiation effects. In this paper, the dialectical relationship between ecological security and sustainable relationship is analyzed, the ecological safety concept at home and abroad is compared and the role that ecological safety plays in the sustainable development of uranium mining based on analysis of restricting factors on uranium mining in China from the perspective of ecological security is also probed into. To achieve sustainable development of the uranium mining industry in China, an ecological security concept from four aspects must be established: 1) the concept of ecological security management; 2) the scientific concept of ecological security; 3) the concept of ecological security investment; and 4) the concept of ecological security responsibility. (authors)

  19. Concept of environment, sustainable development and respect for human rights

    Directory of Open Access Journals (Sweden)

    Urjana ÇURI

    2013-12-01

    Full Text Available The insistence on the definition of environmental protection is an aspiration which has served as prerequisites to the implementation of human rights in a global economic crises. European Regional System has traditionally been focused on the protection of civil and political rights. In the wake of environmental risks that imply the violation of human rights, the emphasis has been placed more on the social, economic and cultural. Collective mechanisms to appeal to the United Nations and the European Court of Human Rights, gave a number of decisions on matters implicating environmental laws and policies. What is to be noted, is the evolution of the guarantees provided under the European Convention on Human Rights, which refers to a substantial understanding of environmental protection, and also including procedural aspects related to the protection of the right to life, privacy, property, information and effective means of appeal. This evolution has been launched by the growing need for states to take preventive measures and policies to the requirements for a balanced sustainable economic development, avoiding environmental risks that imply the violation of human rights. Proportionality in the protection of the interests in this respect creates a context for a fair trial, but also promotes an open and constructive dialogue between judges and lawmakers to protect the public interest.

  20. Cryogenic treatment of steel: from concept to metallurgical understanding

    DEFF Research Database (Denmark)

    Villa, Matteo; Somers, Marcel A. J.

    2017-01-01

    Subjecting steel to cryogenic treatment to improve its properties was conceived in the 30ies of the previous century. The proof of concept that properties, in particular wear resistance, can indeed be improved importantly, was reported in the next decades. Despite many investigations......, the metallurgical understanding of the microstructural changes involved in cryogenic treatment of steel has remained poor. It is believed that the improvement in wear resistance is promoted by an enhanced precipitation of carbides during tempering, but no explanation has been given as to how this enhanced...... precipitation can be obtained. In the last six years, the authors have applied in situ magnetometry, synchrotron X-Ray Diffraction and dilatometry to enlighten the phase transitions occurring in steels at cryogenic temperatures and to point out the connection between different treatment parameters...

  1. Cross-Cultural Understanding for Global Sustainability: Messages and Meanings from Asian Cultural Landscapes

    Science.gov (United States)

    Singh, R.

    2013-11-01

    Concept of 'multifunctionality' of cultural landscapes is a reflection of imbued meaning and aesthetics inherent there and also human manifestation of this spirit through existence and aliveness by human creation, love and continuance in various cultures and traditions. This sense helps envisioning landscapes that cross urban-rural divides in sustainable and an integrated way - characterised by wholeness and ecospirituality that developed in the cultural history of landscape sustainability. That is how, the idea of 'wholeness' (cosmality) is transformed into 'holiness' (sacrality) ― evolved and represented with sacred ecology and visualised through the cosmic frames of sacredscapes in Asian region that survived there as part of lifeworld. Understanding, feeling, living with, practicing and passing on these inherent meanings and aesthetics provide peace, solace and deeper feelings to human mind which are the ethereal breathe of sustainability. The rethinking should be based on the foundational value ― the reasoning that underlies the ethical sense of deeper understanding of Man-Nature Interrelatedness, the basic philosophy of coexistence ― referred in different cultures in their own ways, like multicultural co-living ('Old-comer') in Korea, harmonious coexistence (tabunka kyosei) in Japan, harmonious society (xiaokang) in China, wahi tapu (sacred places) in Maori's New Zealand, global family (vasudhaiva kutumbakam) in Indian thought, and also African humanism (ubuntu) in South Africa. Think universally, see globally, behave regionally, act locally but insightfully; this is an appeal for shared wisdom for global sustainability in making our cultural landscapes mosaic of happy, peaceful and sustainable places crossing all the borders and transitions, especially interwoven links among Korea, Japan, China, and India.

  2. Understanding sustainable diets: a descriptive analysis of the determinants and processes that influence diets and their impact on health, food security, and environmental sustainability.

    Science.gov (United States)

    Johnston, Jessica L; Fanzo, Jessica C; Cogill, Bruce

    2014-07-01

    The confluence of population, economic development, and environmental pressures resulting from increased globalization and industrialization reveal an increasingly resource-constrained world in which predictions point to the need to do more with less and in a "better" way. The concept of sustainable diets presents an opportunity to successfully advance commitments to sustainable development and the elimination of poverty, food and nutrition insecurity, and poor health outcomes. This study examines the determinants of sustainable diets, offers a descriptive analysis of these areas, and presents a causal model and framework from which to build. The major determinants of sustainable diets fall into 5 categories: 1) agriculture, 2) health, 3) sociocultural, 4) environmental, and 5) socioeconomic. When factors or processes are changed in 1 determinant category, such changes affect other determinant categories and, in turn, the level of "sustainability" of a diet. The complex web of determinants of sustainable diets makes it challenging for policymakers to understand the benefits and considerations for promoting, processing, and consuming such diets. To advance this work, better measurements and indicators must be developed to assess the impact of the various determinants on the sustainability of a diet and the tradeoffs associated with any recommendations aimed at increasing the sustainability of our food system. © 2014 American Society for Nutrition.

  3. Understanding the Sustainability of Fuel from the Viewpoint of Exergy

    Directory of Open Access Journals (Sweden)

    Yaning Zhang

    2018-01-01

    Full Text Available At the same time of providing a huge amount of energy to the world population (social sustainability and global economy (economic sustainability, the fuel itself also releases a great amount of emissions to the environment the world people live in in the forms of gaseous pollutants (SOx, NOx, CO, CO2, CH4, etc. and ash compositions (Al2O3, CaO, Fe2O3, K2O, MgO, MnO, Na2O, P2O5, SO3, SiO2, TiO2, etc., seriously impacting the environment (environmental sustainability for the world population and global economy. Sustainability generally encompasses economic sustainability, environmental sustainability, and social sustainability, and all of these are significantly related to the energy/resource sustainability. This study addresses the sustainability of fuel from the viewpoint of exergy. It is demonstrated that the energy of a fuel is best evaluated by its chemical exergy, and the environmental impact of a fuel can be assessed through the chemical exergy of its emissions (the specific impacts such as toxicity or greenhouse effect are not detailed. Then, the sustainability of fuel can be understood from the viewpoint of exergy through three ways: (a high chemical exergy of the fuel, (b high exergy efficiency of the fuel conversion process, and (c low chemical exergy of the emissions.

  4. Beyond Cliche--Reclaiming the Concept of Sustainability

    Science.gov (United States)

    Fuller, Robert J.

    2010-01-01

    In closing his 2008 Myer Lecture, the scientist and environmentalist Dr. Tim Flannery said that this century will be defined by the search for sustainability. How perilous therefore that nowadays there is so much overuse of the word "sustainability" that it has become a cliche. Today's tertiary students studying architecture and…

  5. Understanding and Applying the Concept of Value Creation in Radiology.

    Science.gov (United States)

    Larson, David B; Durand, Daniel J; Siegal, Daniel S

    2017-04-01

    The concept of value in radiology has been strongly advocated in recent years as a means of advancing patient care and decreasing waste. This article explores the concept of value creation in radiology and offers a framework for how radiology practices can create value according to the needs of their referring clinicians. Value only exists in the eyes of a customer. We propose that the primary purpose of diagnostic radiology is to answer clinical questions using medical imaging to help guide management of patient care. Because they are the direct recipient of this service, we propose that referring clinicians are the direct customers of a radiology practice and patients are indirect customers. Radiology practices create value as they understand and fulfill their referring clinicians' needs. To narrow those needs to actionable categories, we propose a framework consisting of four major dimensions: (1) how quickly the clinical question needs to be answered, (2) the degree of specialization required to answer the question, (3) how often the referring clinician uses imaging, and (4) the breadth of imaging that the referring clinician uses. We further identify three major settings in which referring clinicians utilize radiological services: (1) emergent or urgent care, (2) primary care, and (3) specialty care. Practices best meet these needs as they engage with their referring clinicians, create a shared vision, work together as a cohesive team, structure the organization to meet referring clinicians' needs, build the tools, and continually improve in ways that help referring clinicians care for patients. Copyright © 2016 American College of Radiology. Published by Elsevier Inc. All rights reserved.

  6. Children's understanding of area concepts: development, curriculum and educational achievement.

    Science.gov (United States)

    Bond, Trevor G; Parkinson, Kellie

    2010-01-01

    As one part of a series of studies undertaken to investigate the contribution of developmental attributes of learners to school learning, a representative sample of forty-two students (age from 5 years and 3 months to 13 years and 1 month) was randomly selected from a total student population of 142 students at a small private primary school in northern Australia. Those children's understandings of area concepts taught during the primary school years were assessed by their performance in two testing situations. The first consisted of a written classroom test of ability to solve area problems with items drawn directly from school texts, school examinations and other relevant curriculum documents. The second, which focused more directly on each child's cognitive development, was an individual interview for each child in which four "area" tasks such as the Meadows and Farmhouse Experiment taken from Chapter 11 of The Child's Conception of Geometry (Piaget, Inhelder and Szeminska, 1960, pp. 261-301) were administered. Analysis using the Rasch Partial Credit Model provided a finely detailed quantitative description of the developmental and learning progressions revealed in the data. It is evident that the school mathematics curriculum does not satisfactorily match the learner's developmental sequence at some key points. Moreover, the children's ability to conserve area on the Piagetian tasks, rather than other learner characteristics, such as age and school grade seems to be a precursor for complete success on the mathematical test of area. The discussion focuses on the assessment of developmental (and other) characteristics of school-aged learners and suggests how curriculum and school organization might better capitalize on such information in the design and sequencing of learning experiences for school children. Some features unique to the Rasch family of measurement models are held to have special significance in elucidating the development/attainment nexus.

  7. Concept Mapping as a Tool to Develop and Measure Students' Understanding in Science

    Science.gov (United States)

    Tan, Sema; Erdimez, Omer; Zimmerman, Robert

    2017-01-01

    Concept maps measured a student's understanding of the complexity of concepts, and interrelationships. Novak and Gowin (1984) claimed that the continuous use of concept maps increased the complexity and interconnectedness of students' understanding of relationships between concepts in a particular science domain. This study has two purposes; the…

  8. Mapping Conceptual Understanding of Algebraic Concepts: An Exploratory Investigation Involving Grade 8 Chinese Students

    Science.gov (United States)

    Jin, Haiyue; Wong, Khoon Yoong

    2015-01-01

    Conceptual understanding is a major aim of mathematics education, and concept map has been used in non-mathematics research to uncover the relations among concepts held by students. This article presents the results of using concept map to assess conceptual understanding of basic algebraic concepts held by a group of 48 grade 8 Chinese students.…

  9. Understanding and Advancing Campus Sustainability Using a Systems Framework

    Science.gov (United States)

    Posner, Stephen M.; Stuart, Ralph

    2013-01-01

    Purpose: University campuses behave as complex systems, and sustainability in higher education is best seen as an emergent quality that arises from interactions both within an institution and between the institution and the environmental and social contexts in which it operates. A framework for strategically prioritizing campus sustainability work…

  10. Understanding the biological concept "bird": A kindergarten case study

    Science.gov (United States)

    Buchholz, Dilek

    The purpose of this qualitative, multiple case study of 14 students in a metropolitan public school in the Deep South was to find out, during a period of three months, what these kindergarten-aged children knew about birds, whether this knowledge represented current scientific thought, if such science instruction meaningfully affected their prior knowledge, and if so, what the factors during instruction that seemed to influence their understanding of the concept of bird were. The research was conducted in three phases; preinstruction interviews, instruction, and postinstruction interviews. The theoretical framework for this research was based on the Human Constructivism theory of learning (Mintzes, Wandersee and Novak, 1997). Instructional materials consisted of carefully chosen books (both fiction and non-fiction), guest speakers, field trips, a live bird in the classroom, students' observation journals, teacher-made classification and sorting activities, and picture-based concept maps. The findings suggest that young children's knowledge of birds was limited chiefly to birds' anatomical and morphological characteristics, with repeated references being made by the children to human characteristics. There was a positive, significant difference in young children's pre- and postinstruction scientific knowledge of birds. Although performance varied from child to child after instruction, most children were able to identify some common birds by name. Just one child resisted conceptual change. Kindergarten children's basic knowledge of bird behavior was limited to flight and eating. Although the children had more conceptual knowledge at the end, understanding still appeared to be shallow. The children did develop their skill in observing markedly. It also became evident that these kindergarten children needed more (a) experience in asking questions, (b) practice in techniques of visual representation, and (c) language development in order to be able to explain what they

  11. Understanding Sustainable Diets: A Descriptive Analysis of the Determinants and Processes That Influence Diets and Their Impact on Health, Food Security, and Environmental Sustainability123

    Science.gov (United States)

    Johnston, Jessica L.; Fanzo, Jessica C.; Cogill, Bruce

    2014-01-01

    The confluence of population, economic development, and environmental pressures resulting from increased globalization and industrialization reveal an increasingly resource-constrained world in which predictions point to the need to do more with less and in a “better” way. The concept of sustainable diets presents an opportunity to successfully advance commitments to sustainable development and the elimination of poverty, food and nutrition insecurity, and poor health outcomes. This study examines the determinants of sustainable diets, offers a descriptive analysis of these areas, and presents a causal model and framework from which to build. The major determinants of sustainable diets fall into 5 categories: 1) agriculture, 2) health, 3) sociocultural, 4) environmental, and 5) socioeconomic. When factors or processes are changed in 1 determinant category, such changes affect other determinant categories and, in turn, the level of “sustainability” of a diet. The complex web of determinants of sustainable diets makes it challenging for policymakers to understand the benefits and considerations for promoting, processing, and consuming such diets. To advance this work, better measurements and indicators must be developed to assess the impact of the various determinants on the sustainability of a diet and the tradeoffs associated with any recommendations aimed at increasing the sustainability of our food system. PMID:25022991

  12. Understanding influences in policy landscapes for sustainable coastal livelihoods

    NARCIS (Netherlands)

    Steenbergen, Dirk J.; Clifton, Julian; Visser, Leontine E.; Stacey, Natasha; McWilliam, Andrew

    2017-01-01

    Ensuring sustainability of livelihoods for communities residing in coastal environments of the Global South has gained considerable attention across policy making, practice and research fields. Livelihood enhancement programs commonly strategize around developing people's resilience by

  13. GREEN CONCEPTS AND MATERIAL FLOW COST ACCOUNTING APPLICATION FOR COMPANY SUSTAINABILITY

    Directory of Open Access Journals (Sweden)

    Rochman Marota

    2017-02-01

    Full Text Available Health equipment and furniture become a complementary factor for good health services to the communities. Management of health equipment and furniture is started by manufacturers within the industry scope and sustainable business processes. This study aimed to apply green concepts and MFCA at PT XYZ, and to analyze their effects on the dimensions of the company sustainability. To measure the effects of green concepts and MFCA on the dimensions of corporate sustainability, a multiple regression analysis was used. The analysis showed that they gave significant effects from the results of the F test, t test and probability test. From these results, a number of suggestions for improvement of production process performance as managerial implications for maintaining the stability of the company sustainability index were formulated.Keywords: efficiency and effectiveness of production cost, green concepts, the company sustainability, material flow cost accounting

  14. The concept and principles of sustainable architectural design for national parks in Serbia

    OpenAIRE

    Milošević Predrag

    2004-01-01

    The paper elaborates the concept of sustainable architectural design that has come to the forefront in the last 20 years, and in the light of the National Park. This concept recognizes that human civilization is an integral part of the natural world and that nature must be preserved and perpetuated if the human community itself is to survive. Sustainable design articulates this idea through developments that exemplify the principles of conservation and encourage the application of those princ...

  15. The scale concept and sustainable development: implications on the energetics and water resources

    International Nuclear Information System (INIS)

    Demanboro, Antonio Carlos; Mariotoni, Carlos Alberto

    1999-01-01

    The relationships between both the demographic growth and the water and energetic resources are focused. The planet scale and carrying capacity are discussed starting from the maximum and optimum sustainable concepts, both anthropocentric and biocentric. Two scenarios denominated 'sustainable agriculture' and 'sharing-water' are elaborated with the available resources of water, fertile lands and energy consumption, and with the population trends. (author)

  16. Understanding students' concepts through guided inquiry learning and free modified inquiry on static fluid material

    OpenAIRE

    Sularso Sularso; Widha Sunarno; Sarwanto Sarwanto

    2017-01-01

    This study provides information on understanding students' concepts in guided inquiry learning groups and in free modified inquiry learning groups. Understanding of student concept is reviewed on the concept of static fluid case. The number of samples tested were 67 students. The sample is divided into 2 groups of students: the group is given guided inquiry learning and the group given the modified free inquiry learning. Understanding the concept of students is measured through 23 tests of it...

  17. Simulating Sustainment for an Unmanned Logistics System Concept of Operation in Support of Distributed Operations

    Science.gov (United States)

    2017-06-01

    SUSTAINMENT FOR AN UNMANNED LOGISTICS SYSTEM CONCEPT OF OPERATION IN SUPPORT OF DISTRIBUTED OPERATIONS by Elle M. Ekman June 2017 Thesis...REPORT DATE June 2017 3. REPORT TYPE AND DATES COVERED Master’s thesis 4. TITLE AND SUBTITLE SIMULATING SUSTAINMENT FOR AN UNMANNED LOGISTICS SYSTEM... logistics always seeks to remain responsive, flexible, and sustainable to successfully support highly maneuverable units dispersed over large

  18. Consumer-oriented Sustainable Energy Concepts; Consumentgerichte Duurzame Energieconcepten

    Energy Technology Data Exchange (ETDEWEB)

    Kuiper, H.J. [Universiteit Twente UT, Enschede (Netherlands)

    2009-10-15

    A study on the willingness of potential buyers of newly built houses to invest in energy efficient systems in order to realize a sustainable dwelling [Dutch] Een onder zoek naar de bereidheid van potentiele kopers van nieuwbouw woningen tot het investeren in energetische systemen om te komen tot een duurzame woning.

  19. A Description Logic Based Knowledge Representation Model for Concept Understanding

    DEFF Research Database (Denmark)

    Badie, Farshad

    2018-01-01

    This research employs Description Logics in order to focus on logical description and analysis of the phenomenon of ‘concept understanding’. The article will deal with a formal-semantic model for figuring out the underlying logical assumptions of ‘concept understanding’ in knowledge representation...

  20. Prospective Mathematics Teachers' Understanding of the Base Concept

    Science.gov (United States)

    Horzum, Tugba; Ertekin, Erhan

    2018-01-01

    The purpose of this study is to analyze what kind of conceptions prospective mathematics teachers (PMTs) have about the base concept (BC). One-hundred and thirty-nine PMTs participated in the study. In this qualitative research, data were obtained through open-ended questions, the semi-structured interviews and pictures of geometric figures drawn…

  1. IAHE Hydrogen Civilization Conception for the Humankind Sustainable Future

    Energy Technology Data Exchange (ETDEWEB)

    Victor A Goltsov; Lyudmila F Goltsova [International Association for Hydrogen Energy, P.O. Box 248266 Coral Gables, FL 33124-0622 (United States)]|[Donetsk National Technical University, 58, Artyom Street, 83000 Donetsk (Ukraine); T Nejat Veziroglu [International Association for Hydrogen Energy, P.O. Box 248266 Coral Gables, FL 33124-0622, (United States)]|[UNIDO-ICHET, Sabri Ulker Sk. 38/4, Cevizlibag, Zeytinburnu, 34015 Istanbul (Turkey)

    2006-07-01

    There are generalized of a novel Hydrogen Civilization (HyCi-) conception of the International Association for Hydrogen Energy. The HyCi-Conception states that at this rigorous, severe historical period the humankind still has a real possibility to save the biosphere and makes living out of humanity be possible and real process. The above objective can be achieved by the only way, the way of advantageous all-planetary work along the direction of ecologically clean vector 'Hydrogen energy {yields} Hydrogen economy {yields} Hydrogen civilization'. The HyCi-Conception includes three constituent, mutually conditioned parts: industrially-ecological, humanitarian-cultural and geopolitical-internationally legislative ones. Legislative-economical mechanism of transition to hydrogen civilization is formulated, and the most important possible stages of HyCi-transition are indicated and discussed. (authors)

  2. IAHE Hydrogen Civilization Conception for the Humankind Sustainable Future

    International Nuclear Information System (INIS)

    Victor A Goltsov; Lyudmila F Goltsova; T Nejat Veziroglu

    2006-01-01

    There are generalized of a novel Hydrogen Civilization (HyCi-) conception of the International Association for Hydrogen Energy. The HyCi-Conception states that at this rigorous, severe historical period the humankind still has a real possibility to save the biosphere and makes living out of humanity be possible and real process. The above objective can be achieved by the only way, the way of advantageous all-planetary work along the direction of ecologically clean vector 'Hydrogen energy → Hydrogen economy → Hydrogen civilization'. The HyCi-Conception includes three constituent, mutually conditioned parts: industrially-ecological, humanitarian-cultural and geopolitical-internationally legislative ones. Legislative-economical mechanism of transition to hydrogen civilization is formulated, and the most important possible stages of HyCi-transition are indicated and discussed. (authors)

  3. An Interdisciplinary Approach to Environmental and Sustainability Education: Developing Geography Students' Understandings of Sustainable Development Using Poetry

    Science.gov (United States)

    Walshe, Nicola

    2017-01-01

    Education for sustainable development (ESD) persists as an important concept within international policy and yet, despite considerable debate, there remains a lack of consensus as to a pedagogy for ESD in schools. This paper presents findings from a study investigating how an interdisciplinary approach to ESD in England developed one class of 16-…

  4. Lehae-La-Rona: Epistemological Interrogations to Broaden Our Conception of Environment and Sustainability

    Science.gov (United States)

    Mokuku, Tsepo

    2012-01-01

    This paper develops and explores "lehae-la-rona" and its potential value in environment and sustainability discourse. It draws on African-centred concepts and critiques of dominant Eurocentric theoretical frameworks. In particular, Ani's concepts of "asili," "utamawazo" and "utamaroho" and Indigenous…

  5. Sustainability: Teaching an Interdisciplinary Threshold Concept through Traditional Lecture and Active Learning

    Science.gov (United States)

    Levintova, Ekaterina M.; Mueller, Daniel W.

    2015-01-01

    One of the difficulties in teaching global sustainability in the introductory political science classes is the different emphases placed on this concept and the absence of the consensus on where the overall balance between environmental protection, economic development, and social justice should reside. Like many fuzzy concepts with which students…

  6. The concept and principles of sustainable architectural design for national parks in Serbia

    Directory of Open Access Journals (Sweden)

    Milošević Predrag

    2004-01-01

    Full Text Available The paper elaborates the concept of sustainable architectural design that has come to the forefront in the last 20 years, and in the light of the National Park. This concept recognizes that human civilization is an integral part of the natural world and that nature must be preserved and perpetuated if the human community itself is to survive. Sustainable design articulates this idea through developments that exemplify the principles of conservation and encourage the application of those principles in our daily lives. A corollary concept, and one that supports sustainable design, is that of bio-regionalism - the idea that all life is established and maintained on a functional community basis and that all of these distinctive communities (bio-regions have mutually supporting life systems that are generally self-sustaining. The concept of sustainable design holds that future technologies must function primarily within bioregional patterns and scales. They must maintain biological diversity and environmental integrity contribute to the health of air, water, and soils, incorporate design and construction that reflect bio-regional conditions, and reduce the impacts of human use. Sustainable design, sustainable development, design with nature environmentally sensitive design, holistic resource management - regardless of what it's called, "sustainability," the capability of natural and cultural systems being continued over time, is the key. Sustainable design must use an alternative approach to traditional design and the new design approach must recognize the impacts of every design choice on the natural and cultural resources of the local, regional, and global environments. Sustainable park and recreation development will succeed to the degree that it anticipates and manages human experiences. Interpretation provides the best single tool for shaping experiences and sharing values. By providing an awareness of the environment, values are taught that are

  7. Sustainable Design and Renewable Energy Concepts in Practice

    Science.gov (United States)

    Maxwell, Lawrence

    2009-07-01

    The energy use of residential and non-residential buildings in the US makes up a full 50% of the total energy use in the country. The Architects role in positively altering this equation has become more and more apparent. A change in the paradigm of how buildings are designed and the integration of renewable energy sources to meet their energy requirements can have tremendous impacts on sustainability, energy consumption, environment impacts, and the potential for climate change.

  8. Understanding green and sustainable construction in Lagos, Nigeria ...

    African Journals Online (AJOL)

    Research findings indicate that the most important factors considered for sustainable construction with their mean item scores are quality of working conditions (0.852), strengthening and enforcement of relevant laws and regulations (0.872), encouraging construction waste management (0.819), and design for flexibility and ...

  9. Psychological and behavioural approaches to understanding and governing sustainable mobility

    NARCIS (Netherlands)

    Higham, J.; Cohen, S.; Peeters, P.M.; Gössling, S.

    2013-01-01

    This paper introduces and explores the psychological and social factors that both contribute to and inhibit behaviour change vis-à-vis sustainable (tourist) mobility. It is based on papers presented at the Freiburg 2012 workshop. Specifically, it reviews climate change attitudes and perceptions, the

  10. Public Understanding of Sustainable Development: Some Implications for Education

    Science.gov (United States)

    Scott, William

    2015-01-01

    A number of recent surveys of public opinion claim that there is now widespread acceptance of the need for sustainable development, and that the general public, through its social and consumer activity is already successfully engaged. However, in all this, the focus has primarily been on individual and family behaviours such as recycling and…

  11. Composing New Understandings of Sustainability in the Anthropocene

    Science.gov (United States)

    Jeong, Sophia; Britton, Stacey; Haverkos, Kimberly; Kutner, Mel; Shume, Teresa; Tippins, Deborah

    2018-01-01

    The relationship between sustainability and the Anthropocene takes on new meaning in a time of unprecedented human impact on Earth systems. This relationship is at times contested and not well researched but critical in considering how we will respond to environmental challenges of today and the future. Elaborating on the need for new perspectives…

  12. Expanding the concept of sustainable seafood using Life Cycle Assessment

    DEFF Research Database (Denmark)

    Ziegler, Friederike; Hornborg, Sara; Green, Bridget S

    2016-01-01

    Fisheries management and sustainability assessment of fisheries more generally have recently expanded their scope from single-species stock assessment to ecosystem-based approaches, aiming to incorporate economic, social and local environmental impacts, while still excluding global-scale environm......Fisheries management and sustainability assessment of fisheries more generally have recently expanded their scope from single-species stock assessment to ecosystem-based approaches, aiming to incorporate economic, social and local environmental impacts, while still excluding global......-offs, LCA can be a useful decision support tool and avoids problem shifting from one concern (or activity) to another. The integrated, product-based and quantitative perspective brought by LCA could complement existing tools. One example is to follow up fuel use of fishing, as the production and combustion...... performance could likewise facilitate the transition to low-impact fisheries. Taking these steps in an open dialogue between fishers, managers, industry, NGOs and consumers would enable more targeted progress towards sustainable fisheries...

  13. The home concept in poetic texts: new ways of understanding

    Directory of Open Access Journals (Sweden)

    С А Радзиевская

    2010-03-01

    Full Text Available The article focuses on the analysis of the HOME concept in American poetic texts and on the description of the model of its content. Linguocognitive mechanisms of the formation of the images of home are revealed.

  14. Embedding the concept of service oriented architecture into software sustainability evaluation model

    Science.gov (United States)

    Ahmad, Ruzita; Hussain, Azham; Baharom, Fauziah

    2017-10-01

    Software sustainability evaluation is a measurement mechanism which involved several criteria of software development through the characteristic and sub-characteristic with requirement to meet the needs at the present until to the future generation. The measurement mechanism can support to achieve developing software towards sustainability perspective such as environment, economic and social. This paper embedded the concept of Service-Oriented Architecture into sustainability evaluation model to support the measurement criteria in the way to build software flexibility, reusability and agility. The objective is to propose several characteristic of software development with utilizing the concept of sustainability and embedded with SOA concept. The mapping criteria of SOA and software development characteristic significantly improve the measurement criteria that can be addressed in the measurement model.

  15. Understanding partnership practice in child and family nursing through the concept of practice architectures.

    Science.gov (United States)

    Hopwood, Nick; Fowler, Cathrine; Lee, Alison; Rossiter, Chris; Bigsby, Marg

    2013-09-01

    A significant international development agenda in the practice of nurses supporting families with young children focuses on establishing partnerships between professionals and service users. Qualitative data were generated through interviews and focus groups with 22 nurses from three child and family health service organisations, two in Australia and one in New Zealand. The aim was to explore what is needed in order to sustain partnership in practice, and to investigate how the concept of practice architectures can help understand attempts to enhance partnerships between nurses and families. Implementation of the Family Partnership Model (FPM) is taken as a specific point of reference. Analysis highlights a number of tensions between the goals of FPM and practice architectures relating to opportunities for ongoing learning; the role of individual nurses in shaping the practice; relationships with peers and managers; organisational features; and extra-organisational factors. The concept of practice architectures shows how changing practice requires more than developing individual knowledge and skills, and avoids treating individuals and context separately. The value of this framework for understanding change with reference to context rather than just individual's knowledge and skills is demonstrated, particularly with respect to approaches to practice development focused on providing additional training to nurses. © 2012 John Wiley & Sons Ltd.

  16. Sustainable or Distributed Energy—or both? Clarifying the Basic Concepts of Reforming the Energy Sector

    OpenAIRE

    Pekka Peura; Patrik Sjöholm

    2015-01-01

    This paper clarifies the concepts of Sustainable Energy (SE) and Distributed Energy (DE) including their related synonyms, by discussing, analyzing and presenting recommendations. This is important because these concepts are crucial in the on-going transformation from the fossil carbon based to renewable energy based societies, but still the use of the concepts has been confusing. SE consists of the integration of rational use of energy (energy saving, energy efficiency, use of renewable ener...

  17. Peeling the Onion: Student Teacher's Conceptions of Literary Understanding.

    Science.gov (United States)

    Carlsson, Maj Asplund; Fulop, Marta; Marton, Ference

    2001-01-01

    Studied the theories student teachers held about literary understanding through interviews with 25 Hungarian and 8 Swedish student teachers. Categories of theories captured a substantial portion of the variation in how literary understanding can be seen. Three central aspects of human understanding, variation, discernment, and simultaneity, could…

  18. Oil-points - Designers means to evaluate sustainability of concepts

    DEFF Research Database (Denmark)

    Bey, Niki; Lenau, Torben Anker

    1998-01-01

    Designers have an essential influence on product design and are therefore one target group for environmental evaluation methods. This implies, that such evaluation methods have to meet designers requirements. Evaluation of sustainability of products is often done using formal Life Cycle Assessment....... This is investigated by means of three case studies where environmental impact is estimated using the EDIP method, the Eco-indicator 95 method, and the Oil Point method proposed by the authors. It is found that the results obtained using Oil Points are in acceptable conformity with the results obtained with more...

  19. Evaluating Tourist Destination Performance: Expanding the Sustainability Concept

    Directory of Open Access Journals (Sweden)

    Wenbin Luo

    2018-02-01

    Full Text Available Performance evaluations are a critical tool in promoting the sustainability of tourist destinations. The literature shows a lack of consensus on basic terminology and definitions of destination performance. While research focuses on business efficiency, areas such as development effectiveness, social equality, and environmental integrity are still not well understood, even though these are salient elements of sustainable development. This paper provides a framework for evaluating destination performance under the 4E rubric of economy, efficiency, effectiveness, and environmental quality, which reflects a more holistic and effective destination performance. The information entropy weight method and a multi-factor comprehensive evaluation model are developed and applied to an international destination, Zhangjiajie, China, which was selected as a case study to test the framework developed. Results show that the economy, efficiency, effectiveness, and environmental quality aspects should be considered when evaluating tourism development performance. The empirical analysis shows that based on these criteria, Zhangjiajie’s destination performance improved measurably during the test period from 2005 to 2009. The results indicate that significant events, natural disasters, and financial crises influence performance most.

  20. Middle School Mathematics Teachers' Knowledge of Students' Understanding of Core Algebraic Concepts: Equal Sign and Variable

    Science.gov (United States)

    Asquith, Pamela; Stephens, Ana C.; Knuth, Eric J.; Alibali, Martha W.

    2007-01-01

    This article reports results from a study focused on teachers' knowledge of students' understanding of core algebraic concepts. In particular, the study examined middle school mathematics teachers' knowledge of students' understanding of the equal sign and variable, and students' success applying their understanding of these concepts. Interview…

  1. Understanding situation awareness in nursing work: a hybrid concept analysis.

    Science.gov (United States)

    Sitterding, Mary Cathryn; Broome, Marion E; Everett, Linda Q; Ebright, Patricia

    2012-01-01

    Eighty percent of medical error are attributed to human factors. Human factors experts suggest the least explored factor in patient errors is attention, specifically, situation awareness. The purpose of this article was to analyze the concept of situation awareness using a hybrid concept analysis. The experience of situation awareness among nurses was elicited during the fieldwork phase through semistructured interviews. Content and relational analyses yielded 9 themes: perception, comprehension, projection, knowledge and expertise, cognitive overload, interruption management, task management, instantaneous learning, and cognitive stacking. A conceptual definition of situation awareness emerged along with recommendations for application in nursing.

  2. Efficient, equitable and sustainable energy policy in a small open economy: Concepts and assessments

    International Nuclear Information System (INIS)

    Chang, Youngho; Fang, Zheng

    2017-01-01

    This study aims to develop three broadly defined concepts of designing and evaluating energy policy of a small open economy, namely, efficiency, equity, and sustainability which are applied to Singapore. By analysing the historical energy and economic data and examining energy policies and programs implemented, this study finds that (1) energy intensity improves over time and three strategies employed to improve energy efficiency - tariffs, deregulation and setting energy standards - are found to have some positive effects. (2) A utility rebate programme is implemented and revised continuously to achieve equity in energy consumption across Singapore households. (3) By the weak concept of sustainability, Singapore is considered marginally sustainable. Institutional, technological and market-based approaches are being implemented to increase energy efficiency, improve energy equity and secure sustainability. - Highlights: • Three concepts of designing and evaluating energy policy are developed. • Efficiency, equity and sustainability are the three concepts. • Three strategies are identified in improving energy efficiency. • A utility rebate programme is to achieve equity in energy consumption across households. • Institutional and market-based approaches are to secure sustainable energy supply.

  3. Flexible Ridesharing New Opportunities and Service Concepts for Sustainable Mobility

    CERN Document Server

    Handke, Volker

    2013-01-01

    Individual mobility is one of the most important needs of modern society and an important link between private, public and economic life. In contrast, transport also entails severe environmental and social burdens, foiling current efforts for sustainable development. As the main source of CO2 emissions, transport is a prominent driver for climate change, and individual car traffic is responsible for nearly a third of the total energy consumption. However, we have to consider that many commuters feel indeed very dependent on their car. Here, ridesharing promises to contribute to environmental protection, while still offering individual mobility. Although ridesharing options have been discussed since many years, internet and smartphones provide completeley new opportunities to find ridesharing partners today. Thus, this book deals with current efforts on implementing flexible internet- and phone-based ridesharing services. With a main focus on the users‘ perspective, their demands and acceptance limits, we ai...

  4. Understanding Virtual Epidemics: Children's Folk Conceptions of a Computer Virus

    Science.gov (United States)

    Kafai, Yasmin B.

    2008-01-01

    Our work investigates the annual outbreak of Whypox, a virtual epidemic in Whyville.net, a virtual world with over 1.2 million registered players ages 8-16. We examined online and classroom participants' understanding of a computer virus using surveys and design activities. Our analyses reveal that students have a mostly naive understanding of a…

  5. Sustainable urban water management: understanding and fostering champions of change.

    Science.gov (United States)

    Taylor, A C

    2009-01-01

    This paper highlights and discusses ten characteristic attributes of emergent leaders (also known as 'champions') who worked as influential change agents within publicly managed, Australian water agencies to encourage more sustainable forms of urban water management. These attributes relate to: the 'openness to experience' personality characteristic; career mobility and work history demographics; personal and position power; strategic social networks; the culture of their organisations; and five distinguishing leadership behaviours (e.g. persisting under adversity). Guided by the findings of an international literature review, the author conducted a multiple case study involving six water agencies. This research identified attributes of these leaders that were typically strong and/or distinguishing compared to relevant control groups, as well as influential contextual factors. While it is widely acknowledged that these leaders play a critical role in the delivery of sustainable urban water management, there has been a paucity of context-sensitive research involving them. The research project highlighted in this paper is a response to this situation and has led to the development of a suite of 39 practical, evidence-based strategies to build leadership capacity throughout water agencies. Such capacity is one of the elements needed to drive the transition to more 'water sensitive cities'.

  6. An Introspective view of Sustainable Cohousing with The Malaysian Housing Concept

    Directory of Open Access Journals (Sweden)

    Jumadi Norhaslina

    2016-01-01

    Full Text Available Sustainable development strategies are becoming demanded in assisting in wealth distribution and improving living conditions for mankind. A sustained community is one of the sustainable development agendas that encourage community involvement and participation in contributing to sustainability. Moreover, with the rapid population growth, especially in urban cities as the proportion of urban dwellers will reach two-thirds of the world population, this will lead to several problems including the social life changing intensely. Sustainable Cohousing is one of the suggested answers for an innovative form of neighbourly accommodation. Generally, Cohousing is formed by a group of people who are committed to living as a community and who actively participate in the design and operation to shape their own neighbourhood. Through this concept, the community can decide how they can implement sustainability principles in terms of social, economical and environmental terms in their neighbourhood. Therefore, it is important to bring back the sense of togetherness amongst the people and improve their social wellbeing through an effective neighbourhood. The objective of this study is to isolate the basic concept of Cohousing and to identify the conceptual framework of Sustainable Cohousing that may apply to improving the sustainable living in Malaysia. The research methodology was through identifying and reviewing the issues in existing literature on cohousing chosen from various dimensions, such as principles and elements, sustainable value, development model and so on, which can be suited with the Malaysian culture. The findings of this research are useful for property development practitioners and policy makers in promoting sustainability through the new concept of modern housing.

  7. New concepts of energy supply for sustainable agricultural systems

    Directory of Open Access Journals (Sweden)

    Ludger Frerichs

    2015-08-01

    Full Text Available The design of future agricultural production systems requires innovative approaches. For creating a more productive, resource-efficient and low-emission agriculture the systemic development of the agricultural processes, the operating conditions and the organizational processes is necessary. Fundamentally new approaches can be found by defining scenarios. Such a hypothetic concept does field operation without using internal combustion engines. Instead of this the power supply of performant machines can be done by electric direct supply systems or for small machines by battery systems with charging points. However, all this requires the electrical energy supply of agricultural fields. A direct electric energy supply utilizing the Center Pivot approach via rotating structures enables new production systems. Using innovative technologies new solutions with great potential for automation and a productive precision agriculture can be designed. This paper highlights an unconventional approach stimulating the discussion about future developments in agricultural engineering.

  8. Sustainability Learning”: An Introduction to the Concept and Its Motivational Aspects

    Directory of Open Access Journals (Sweden)

    Ralf Hansmann

    2010-09-01

    Full Text Available This theoretical paper clarifies the concept of sustainability learning and specifically analyzes motivational aspects. Mastering the challenges of sustainability requires individual learning as well as learning processes on different levels of human systems ranging from groups and organizations to human societies, and mankind as a whole. Learning processes of individuals play a fundamental role, since individuals constitute and shape the larger social aggregates. Learning processes on the level of social aggregates are important since social systems embed and influence individuals. Therefore, sustainability learning needs to be understood as a multi-level concept, comprising individual learning as well as learning processes of human systems. Transdisciplinarity and mutual learning between science and society are considered fundamental approaches of sustainability learning, and hence increase the capacity of mankind to manage human-environment systems in sustainable ways. Based on systemic considerations, the two-fold role, in which motivations act as determinants and targeted outcomes of sustainability learning processes, is explained together with the outstanding role that cooperation, hence cooperative motivation, plays for sustainable development. Finally, the multifaceted, controversial discourses on what sustainability ultimately means (for the scientific community, for a given cultural or political entity, organization, or individual person are considered.

  9. Food synergy: an operational concept for understanding nutrition1234

    OpenAIRE

    Jacobs, David R; Gross, Myron D; Tapsell, Linda C

    2009-01-01

    Research and practice in nutrition relate to food and its constituents, often as supplements. In food, however, the biological constituents are coordinated. We propose that “thinking food first”' results in more effective nutrition research and policy. The concept of food synergy provides the necessary theoretical underpinning. The evidence for health benefit appears stronger when put together in a synergistic dietary pattern than for individual foods or food constituents. A review of dietary...

  10. A system dynamics approach to understanding the One Health concept.

    Directory of Open Access Journals (Sweden)

    Tai Xie

    Full Text Available There have been many terms used to describe the One Health concept, including movement, strategy, framework, agenda, approach, among others. However, the inter-relationships of the disciplines engaged in the One Health concept have not been well described. To identify and better elucidate the internal feedback mechanisms of One Health, we employed a system dynamics approach. First, a systematic literature review was conducted via searches in PubMed, Web of Knowledge, and ProQuest with the search terms: 'One Health' and (concept* or approach*. In addition, we used the HistCite® tool to add significant articles on One Health to the library. Then, of the 2368 articles identified, 19 were selected for evaluating the inter-relationships of disciplines engaged in One Health. Herein, we report a visually rich, theoretical model regarding interactions of various disciplines and complex problem descriptors engaged in One Health problem solving. This report provides a conceptual framework for future descriptions of the interdisciplinary engagements involved in One Health.

  11. Sustaining salmonid populations: A caring understanding of naturalness of taxa

    Science.gov (United States)

    Nielsen, Jennifer L.; Regier, Henry A.; Knudsen, E. Eric

    2004-01-01

    Species of the family of Salmonidae occur naturally in Northern Hemisphere waters that remain clear and cool to cold in summer. For purposes of reproduction, salmonids generally behaviorally respond to the currents of streams and lakes in recently glaciated areas. For feeding and maturation, many larger species migrate into existing systems of large lakes, seas, and oceans. The subfamilies include Salmoninae, Coregoninae, and Thymallinae. In many locales and regions of the hemisphere, numerous species of these subfamilies evolved and self-organized into species flocks or taxocenes of bewildering complexity. For example, any individual species may play different or unique ecological roles in different taxocenes. The northern Pacific and Atlantic Ocean ecosystems, with their seas and tributaries, each contained a metacomplex of such taxocenes that, in their natural state some centuries ago, resembled each other but differed in many ways. Humans have valued all species of this family for subsistence, ceremonial, naturalist, gustatory, angling, and commercial reasons for centuries. Modern progressive humans (MPHs), whose industrial and commercial enterprises have gradually spread over this hemisphere in recent time, now affect aquatic ecosystems at all scales from local to global. These human effects mingle in complex ways that together induce uniquely natural salmonid taxocenes to disintegrate with the loss of species, including those groups least tolerant to human manipulations, but extending more recently to those taxa more adapted to anthropogenic change. As we leave the modern era, dominated by MPHs, will we find ways to live sustainably with salmonid taxocenes that still exhibit self-organizational integrity, or will only individual, isolated populations of salmonid species, derived from those most tolerant of MPHs, survive? To achieve future sustainability of salmonids, we suggest implementation of a search for intuitive knowledge based on faith in the wisdom of

  12. Architectural dimension of sustainability: Re-establishing the concept of recycling

    Directory of Open Access Journals (Sweden)

    Šijaković Milan

    2017-01-01

    Full Text Available Building related processes as water pollution, landfill waste, energy use and related emissions of global warming gases, material and land loss, are undisputable proofs of the devastating effects of the construction industry on our environment. Given that only a small percentage of a total building stock is made out of new work, it is not enough to develop strategies and principles for a sustainable design only for the new projects, but for the existing buildings as well. Therefore, it is essential that, through repurposing, we consider what can be done with what we already have if we are to significantly benefit sustainability agenda in the future. This research focuses on the concept of architectural recycling as a method for achieving sustainable architectural design. In the first place, two concepts, two extremes in dealing with existing buildings will be analysed: 1 preservation as radical stasis and 2 destruction as radical change. This analysis will enable the formulation of the concept of architectural recycling as the ‘preservation through change’, viewed as a sustainable response to rapidly changing conditions. The elaboration of the concept of architectural recycling, as a key method for responding to the sustainability agenda, is the focus of this paper. [Project of the Serbian Ministry of Education, Science and Technological Development, Grant no. TR 36035: Spatial, Environmental, Energy and Social Aspects of Developing Settlements and Climate Change - Mutual Impacts

  13. Fairly sustainable forestry: seven key concepts for defining local sustainability in a global ecosystem

    Science.gov (United States)

    Stephen R. Shifley

    2008-01-01

    In the U.S. we increasingly restrict wood production in the name of sustainability while going abroad for a growing share of the wood we consume, even though our own forest resources per capita are far greater than the global average. The unintended consequence is that we transfer impacts (positive and negative) of our timber harvesting and wood consumption to other...

  14. Towards Understanding EFL Teachers’ Conceptions of Research: Findings From Argentina

    Directory of Open Access Journals (Sweden)

    Darío Luis Banegas

    2018-01-01

    Full Text Available This paper investigates the conceptions of research held by English as a foreign language teachers in Argentina. Quantitative data from 622 participants from an online questionnaire were followed by qualitative data from online interviews with 40 of those participants. Results show that the teachers conceptualised research through conventional notions closer to a quantitative paradigm. They felt research was not part of their job, and a lack of time was the main reason for not engaging in/with research. Teacher development, agency, empowerment, and autonomy could be sought by engaging teachers with forms of research which are meaningful to them, such as action research.

  15. Is sustainable resource utilisation a relevant concept in Avanersuaq? The walrus case

    DEFF Research Database (Denmark)

    Andersen, Astrid Oberborbeck; Heide-Jørgensen, Mads Peter; Flora, Janne

    2018-01-01

    This article addresses the role of Atlantic walrus (Odobenus rosmarus rosmarus) in present-day Avanersuaq from anthropological and biological perspectives, and asks whether or not sustainable resource utilisation is a useful concept in northwest Greenland. We describe the relations that unfold...... analyse how walruses acquire multiple values as they circulate in different networks. Sustainable resource utilisation, we conclude, is a concept that is relevant in Avanersuaq and beyond, because it works as a biological standard, and hence organises laws, norms, and practices of formal management...

  16. from concept to understanding: a new approach to terminography in ...

    African Journals Online (AJOL)

    kaans remains predominantly the lan- guage of the public service. But a very small volume of official communication take place by way of Zulu or Xhosa. Although the present and previous governments in the. RSA have taken .... not understand 'logistics' but he has no clue whatsoever concerning the elements comprising.

  17. The Understanding of "Concept Study" in Teachers' Professional Learning: A Lived Experience of Complexity Inquiry

    Science.gov (United States)

    Wang, Xiong

    2015-01-01

    This paper used narrative to present the author's understanding process of "concept study" in teachers' professional learning. The understanding process was advanced by several questions emerging from the preparation of doing "concept study". Thus, the several questions and their solutions became the threads of the narrative.…

  18. Simulation-Based Performance Assessment: An Innovative Approach to Exploring Understanding of Physical Science Concepts

    Science.gov (United States)

    Gale, Jessica; Wind, Stefanie; Koval, Jayma; Dagosta, Joseph; Ryan, Mike; Usselman, Marion

    2016-01-01

    This paper illustrates the use of simulation-based performance assessment (PA) methodology in a recent study of eighth-grade students' understanding of physical science concepts. A set of four simulation-based PA tasks were iteratively developed to assess student understanding of an array of physical science concepts, including net force,…

  19. Students' Understanding of the Function-Derivative Relationship When Learning Economic Concepts

    Science.gov (United States)

    Ariza, Angel; Llinares, Salvador; Valls, Julia

    2015-01-01

    The aim of this study is to characterise students' understanding of the function-derivative relationship when learning economic concepts. To this end, we use a fuzzy metric (Chang 1968) to identify the development of economic concept understanding that is defined by the function-derivative relationship. The results indicate that the understanding…

  20. University Students' Understanding of the Concepts Empirical, Theoretical, Qualitative and Quantitative Research

    Science.gov (United States)

    Murtonen, Mari

    2015-01-01

    University research education in many disciplines is frequently confronted by problems with students' weak level of understanding of research concepts. A mind map technique was used to investigate how students understand central methodological concepts of empirical, theoretical, qualitative and quantitative. The main hypothesis was that some…

  1. Influence of Particle Theory Conceptions on Pre-Service Science Teachers' Understanding of Osmosis and Diffusion

    Science.gov (United States)

    AlHarbi, Nawaf N. S.; Treagust, David F.; Chandrasegaran, A. L.; Won, Mihye

    2015-01-01

    This study investigated the understanding of diffusion, osmosis and particle theory of matter concepts among 192 pre-service science teachers in Saudi Arabia using a 17-item two-tier multiple-choice diagnostic test. The data analysis showed that the pre-service teachers' understanding of osmosis and diffusion concepts was mildly correlated with…

  2. 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

  3. Sustainable Marketing : The Importance of Being a Sustainable Business

    OpenAIRE

    Reutlinger, Janina

    2012-01-01

    This thesis deals with sustainable marketing, as well as the necessity for more sustainability. The purpose of this thesis was to determine the importance of sustainable marketing for companies. The theoretical part is divided into sustainability and sustainable marketing. Sustainability covers current issues and sustainable development, which form a background for a better understanding of sustainable marketing. Sustainable marketing includes a definition of the concept, as well as susta...

  4. Liberal Liability. Understanding Students’ Conceptions of Gender Structures

    Directory of Open Access Journals (Sweden)

    Linda Murstedt

    2014-04-01

    Full Text Available Research has shown that teaching gender theories tends to be an educational challenge and elicits student resistance. However, little is known about students’ learning processes in social science. This study aims to explore these learning processes by drawing on feminist pedagogy and conceptual change theory. The results show that when students are asked to perform analysis from a structural gender perspective, they recurrently introduce other explanatory frameworks based on non-structural understandings. The students’ learning processes involve reformulating questions and making interpretations based on liberal understandings of power, freedom of choice and equality. We argue that this process is due to the hegemonic position of the liberal paradigm as well as to the dominant ideas about science. Clarifying the underlying presumptions of a liberal perspective and a structural perspective may help students to recognise applied premises and enable them to distinguish relevant explanations.

  5. Conceptions of Memorizing and Understanding in Learning, and Self-Efficacy Held by University Biology Majors

    Science.gov (United States)

    Lin, Tzu-Chiang; Liang, Jyh-Chong; Tsai, Chin-Chung

    2015-02-01

    This study aims to explore Taiwanese university students' conceptions of learning biology as memorizing or as understanding, and their self-efficacy. To this end, two questionnaires were utilized to survey 293 Taiwanese university students with biology-related majors. A questionnaire for measuring students' conceptions of memorizing and understanding was validated through an exploratory factor analysis of participants' responses. As for the questionnaire regarding the students' biology learning self-efficacy (BLSE), an exploratory factor analysis revealed a total of four factors including higher-order cognitive skills (BLSE-HC), everyday application (BLSE-EA), science communication (BLSE-SC), and practical works (BLSE-PW). The results of the cluster analysis according to the participants' conceptions of learning biology indicated that students in the two major clusters either viewed learning biology as understanding or possessed mixed-conceptions of memorizing and understanding. The students in the third cluster mainly focused on memorizing in their learning while the students in the fourth cluster showed less agreement with both conceptions of memorizing and understanding. This study further revealed that the conception of learning as understanding was positively associated with the BLSE of university students with biology-related majors. However, the conception of learning as memorizing may foster students' BLSE only when such a notion co-exists with the conception of learning with understanding.

  6. Interdependences between sustainable development and sustainable economy

    OpenAIRE

    Emilia Mioara CÂMPEANU; Carmen Valentina RĂDULESCU

    2014-01-01

    Sustainable development and sustainable economy are mostly used concepts. Understanding clearly their meaning allows their use in an appropriate context and, therefore, their boundaries in terms of theoretical and practical approaches on which occasion it can be given their interdependencies. The paper aim is to analyze the interdependences between sustainable development and sustainable economy.

  7. 7th Grade Students' Mental Models about the Concept of "Sustainable Development"

    Science.gov (United States)

    Keles, Özgül; Eris, Rabia; Aydogdu, Mustafa

    2017-01-01

    The purpose of the current study is to elicit the opinions constructed by 7th grade secondary school students about three components of the concept of sustainable development; environment, society and economy. Study group of the implementation consists of 20 students attending a public secondary school in 2014-2015 academic year. The study…

  8. Sustainable development and advanced nuclear energy concepts of the post-Soviet countries

    International Nuclear Information System (INIS)

    Gagarinski, A.Y.

    1995-01-01

    The concept of sustainable development and the status and prospects of nuclear power in the newly-independent states on the territory of former Soviet Union are considered. The ecological and economic prerequisites as well as the scientific-technical and industrial basis, advanced nuclear energy technologies for implementation of the national programs are discussed. (author)

  9. Understanding the Amazon Hydrology for Sustainable Hydropower Development

    Science.gov (United States)

    Pokhrel, Y. N.; Chaudhari, S. N.

    2017-12-01

    Construction of 147 new hydropower dams, many of which are large, has been proposed in the Amazon river basin, despite the continuous stacking of negative impacts from the existing ones. These dams are continued to be built in a way that disrupts river ecology, causes large-scale deforestation, and negatively affects both the food systems nearby and downstream communities. In this study, we explore the impacts of the existing and proposed hydropower dams on the hydrological fluxes across the Amazonian Basin by incorporating human impact modules in an extensively validated regional hydrological model called LEAF-Hydro-Flood (LHF). We conduct two simulations, one in offline mode, forced by observed meteorological data for the historical period of 2000-2016 and the other in a coupled mode using the Weather Research and Forecasting (WRF) regional climate model. We mainly analyze terrestrial water storage and streamflow changes during the period of dam operations with and without human impacts. It is certain that the Amazon will undergo some major hydrological changes such as decrease in streamflow downstream in the coming decades caused due to these proposed dams. This study helps us understand and represent processes in a predictable manner, and provides the ability to evaluate future scenarios with dams and other major human influences while considering climate change in the basin. It also provides important insights on how to redesign the hydropower systems to make them truly renewable in terms of energy production, hydrology and ecology.

  10. Organising Sustainable Transition: Understanding the Product, Project and Service Domain of the Built Environment

    DEFF Research Database (Denmark)

    Thuesen, Christian; Koch-Ørvad, Nina; Maslesa, Esmir

    2016-01-01

    a four years innovation project based on theories on sectorial and business model i nnovation and ten detailed case studies of different types of companies and their experimentation with different management and sustainability concepts. The framework interprets the construction industry as a collection...

  11. Shifting Relations with the More-than-Human: Six Threshold Concepts for Transformative Sustainability Learning

    Science.gov (United States)

    Barrett, M. J.; Harmin, Matthew; Maracle, Bryan; Patterson, Molly; Thomson, Christina; Flowers, Michelle; Bors, Kirk

    2017-01-01

    Using the iterative process of action research, we identify six portals of understanding, called threshold concepts, which can be used as curricular guideposts to disrupt the socially constituted separation, and hierarchy, between humans and the more-than-human. The threshold concepts identified in this study provide focal points for a curriculum…

  12. Interpretations of the Concept of Sustainability Amongst the UK’s Leading Food and Drink Wholesalers

    Directory of Open Access Journals (Sweden)

    Peter Jones

    2016-12-01

    Full Text Available Purpose – The aim of this paper is to provide an exploratory review of the interpretations of the concept of sustainability amongst the UK’s leading food and drinks wholesalers, as revealed by the sustainability agendas and achievements reported on their corporate websites. Design/Methodology/Approach – The paper begins with short introductions to sustainability, corporate sustainability and sustainability reporting, and food and drinks wholesaling within the UK. The empirical material for the paper is drawn from reports and information posted on the leading food and drinks wholesalers’ corporate websites. Findings and implications – There are marked variations in the extent to which the UK’s leading food and drinks wholesalers reported and provided information on their sustainability agendas and achievements. These agendas and achievements embraced a wide range of environmental, social and economic issues, but the reporting process had a number of weaknesses that undermined its transparency and credibility. The authors also argue that the leading food and drinks wholesalers’ definitions of, and commitments to, sustainability are principally driven by business imperatives as by any fundamental concern to maintain the viability and integrity of natural and social capital. Limitations – The paper is a preliminary review of the sustainability agendas and achievements publicly reported by the UK’s leading food and drinks wholesalers. Originality – Within the food and drinks supply chain, wholesalers have a pivotal role at the interface between producers, manufacturers, retail and service providers, and as such they can play in promoting sustainability. However, the role of the UK’s wholesale sector in addressing sustainability has received scant attention in the academic literature, so this paper will interest academics and students in business management and marketing.

  13. Towards industrial ecology : sustainable development as a concept of ecological modernization

    OpenAIRE

    Huber, Joseph

    2000-01-01

    "This paper deals with core aspects of ecological modernization, and how these have been received in the debate on sustainable development during the Rio process particularly by two social milieus, one being industry and business, the other milieu representing the red-green current of the ecology movement, which at the Rio conference in 1992 was part of the group of non-governmental organizations (NGOs). The NGOs' understanding of sustainable development has been formulated by ...

  14. THE CONCEPT OF LOCAL-SMART-HOUSING: TOWARDS SOCIO-CULTURAL SUSTAINABILITY OF VERNACULAR SETTLEMENTS

    Directory of Open Access Journals (Sweden)

    AmirHosein GhaffarianHoseini

    2011-07-01

    Full Text Available The recent decades have witnessed the widespread manifestation of intelligent building design development around the world. Meanwhile, the concept of smart housing as one of the main issues of intelligent building design development has stimulated various architects and designers to make use of it for the sake of sustainable housing. However, this study represents a gap in smart housing design owing to the lack of a deep consideration on cultural values of users for ensuring the socio-cultural sustainability as one of the objectives of sustainable smart housing designs. Accordingly, the study puts forward the concept of local-smart-housing through utilization of appropriate vernacular architectural features and cultural values of vernacular settlements in smart housing design in order to reinforce the sociocultural sustainability. Meanwhile, this study is limited to the Malay context in order to identify the vernacular features of Malay vernacular settlement’s functional spaces for utilization in smart housing design to make them culturally responsive. Correspondingly, this study proposes the concept of local-smart-housing based on the incorporation of intelligent building design and utilization of vernacular features for enhancing the quality of life for users.

  15. Barriers and opportunities in realising sustainable energy concepts--an analysis of two Swiss case studies

    International Nuclear Information System (INIS)

    Pohl, Christian; Gisler, Priska

    2003-01-01

    What assists and what hinders sustainable energy use in being put into effect? Two case studies of sustainable energy concepts--the Zurich Solarstromboerse, where electricity can be purchased that is produced by solar panels, and the Swiss CO 2 -law, a consensus oriented implementation of the Kyoto-protocol--were analysed in order to investigate this question. In both case studies the unfolding of the sustainable energy concepts is reconstructed as a process starting with an abstract idea moving to a concrete realisation. This process passes through a series of different social worlds and is, in turn, affected by them. These social worlds are e.g. those of the concerned scientists, the professional investors, energy suppliers or governmental agencies. The case studies reveal three neuralgic challenges that have to be met when a concept advances from idea to realisation through the social worlds: Firstly, the translation between social worlds changes the content of the idea. Secondly, the way each social world looks at things (socially) constructs best solutions to problems and hides others. Thirdly, the actual dynamics of the social world within which it is finally implemented must be adopted by the idea. In order to integrate these neuralgic points, scientists as well as other inventors have to retain responsibility for their sustainable energy ideas and are requested to follow them through the social worlds in order to critically survey and eventually influence their 'content in flux'

  16. Using Laboratory Activities Enhanced with Concept Cartoons to Support Progression in Students' Understanding of Acid-Base Concepts

    Science.gov (United States)

    Ozmen, Haluk; Demircioglu, Gokhan; Burhan, Yasemin; Naseriazar, Akbar; Demircioglu, Hulya

    2012-01-01

    The aim of this study is to examine the effectiveness of an intervention based on a series of laboratory activities enhanced with concept cartoons. The purpose of the intervention was to enhance students' understanding of acid-base chemistry for eight grade students' from two classes in a Turkish primary school. A pretest-posttest non-equivalent…

  17. The Sustainable Expression of Ecological Concept in the Urban Landscape Environment Design

    Science.gov (United States)

    Dong, Junyan; Zhou, Tiejun; Xin, Lisen; Tan, Yuetong; Wang, Zhigang

    2018-02-01

    Urbanization is an inevitable trend of development of human society, also the inevitable outcome of economic development and scientific and technological progress, while urbanization process in promoting the development of human civilization, also no doubt, urban landscape has been a corresponding impact. Urban environment has suffered unprecedented damage, the urban population density, traffic congestion, shortage of resources, environmental pollution, ecological degradation, has become the focus of human society. In order to create an environment of ecological and harmonious, beautiful, sustainable development in the urban landscape, This paper discusses the concept of ecological design combined with the urban landscape design and sustainable development of urban landscape design.

  18. Understanding Innovation for Sustainable Business Management Capabilities and Competencies under Uncertainty

    OpenAIRE

    Wu, Kuo-Jui; Liao, Ching-Jong; Tseng, Ming-Lang; Chou, Pei-Jay

    2015-01-01

    In recent years, many firms have come to understand that innovation is an important issue in sustainable business management, as it helps improve firm capabilities and competencies. Because of the fiercely competitive environment in the hotel industry, innovation has become a critical factor in the process of hotel differentiation, leading to sustainable business success. However, the literature has not thoroughly examined the role of innovation or the hierarchical structure of the capabiliti...

  19. Adolescent understanding of DOHaD concepts: a school-based intervention to support knowledge translation and behaviour change.

    Science.gov (United States)

    Bay, J L; Mora, H A; Sloboda, D M; Morton, S M; Vickers, M H; Gluckman, P D

    2012-12-01

    A life-course approach to reduction of risk of non-communicable diseases (NCD) suggests that early-life interventions may be more effective than lifestyle modifications in middle age. Knowledge translation to develop understanding of the Developmental Origins of Health and Disease (DOHaD) within the community offers the potential to encourage informed diet and lifestyle choices supporting reduction of NCD risk in current and future generations. Many women do not make sustained dietary change before or during pregnancy, therefore appropriate nutritional behaviours need to be established prior to adulthood. This makes adolescence an appropriate stage for interventions to establish suitable dietary and lifestyle behaviours. Therefore, we engaged adolescents in a school-based educational intervention, and assessed the value of this in development of understanding of DOHaD concepts to support behaviour change that could lead to NCD risk reduction in the next generation. Modules of course work were written for 11-14 year olds and trialled in nine schools. Matched pre- and post-intervention questionnaire responses from 238 students and 99 parents, and post-intervention interviews evaluated the intervention. Understanding of a link between maternal diet during pregnancy and the health of the foetus in adulthood increased from 46% to 76% following intervention. Post-intervention evidence suggests the programme facilitated discussion of diet, lifestyle and DOHaD concepts in most families. The intervention was effective in improving understanding of DOHaD concepts and in some cases led to appropriate behaviour change. However, the sustainability of these changes remains to be determined through on-going evaluation of attitudes and behaviour within this cohort.

  20. Incorporating Sustainability and Green Design Concepts into Engineering and Technology Curricula

    Directory of Open Access Journals (Sweden)

    Radian G. Belu

    2016-05-01

    Full Text Available Human society is facing an uncertain future due to the present day unsustainable use of natural resources and the growing imbalance with our natural environment. Sustainability is an endeavour with uncertain outcomes requiring collaboration, teamwork, and abilities to work with respect and learn from other disciplines and professions, as well as with governments, local communities, political and civic organizations. The creation of a sustainable society is a complex and multi-stage endeavour that will dominate twenty first century.  Sustainability has four basic aspects: environment, technology, economy, and societal organization. Schools with undergraduate engineering or engineering technology programs are working to include sustainability and green design concepts into their curricula. Teaching sustainability and green design has increasingly become an essential feature of the present day engineering education. It applies to all of engineering, as all engineered systems interact with the environment in complex and important ways. Our project main goals are to provide the students with multiple and comprehensive exposures, to what it mean to have a sustainable mindset and to facilitate the development of the passion and the skills to integrate sustainable practices into engineering tools and methods. In this study we are describing our approaches to incorporating sustainability and green design into our undergraduate curricula and to list a variety of existing resources that can easily be adopted or adapted by our faculty for this purpose. Our approaches are: (1 redesigning existing courses through development of new curricular materials that still meet the objectives of the original course and (2 developing upper division elective courses that address specific topics related to sustainability, green design, green manufacturing and life-cycle assessment. 

  1. Planning support concept to implementation of sustainable parking development projects in ancient Mediterranean cities

    Directory of Open Access Journals (Sweden)

    Nikša Jajac

    2014-12-01

    Full Text Available This paper proposes a planning support concept (PSC to implementation of sustainable parking development projects (SPDP in ancient Mediterranean cities. It is conceptualized by the logic of decision support systems and a multicriteria analysis approach. The purpose of the concept is to support setting of implementation priorities for subprojects (construction of new and/or improvement of existing parking within a SPDP. Analysing the existing and a planned state of parking within the city a goal tree is established. Subprojects are defined accordingly. Objectives from the last hierarchy level within the goal tree are used as criteria for assessment of defined subprojects. Representatives of stakeholders provided criteria weights by application of AHP and SAW methods. PROMETHEE II was used for priority ranking and PROMETHEE V ensured a definition of project’s implementation phases. The result of the presented concept is the implementation plan for such projects. The concept is tested on the city of Trogir.

  2. Exploring Children's Understanding of Death: Through Drawings and the Death Concept Questionnaire

    Science.gov (United States)

    Bonoti, Fotini; Leondari, Angeliki; Mastora, Adelais

    2013-01-01

    To investigate whether children's understanding of the concept of death varies as a function of death experience and age, 52 children aged 7, 9, and 11 years (26 had a personal death experience), drew a picture reflecting the meaning of the word death and completed the Death Concept Questionnaire for examination of Human and Animal Death. The…

  3. Conceptions of Memorizing and Understanding in Learning, and Self-Efficacy Held by University Biology Majors

    Science.gov (United States)

    Lin, Tzu-Chiang; Liang, Jyh-Chong; Tsai, Chin-Chung

    2015-01-01

    This study aims to explore Taiwanese university students' conceptions of learning biology as memorizing or as understanding, and their self-efficacy. To this end, two questionnaires were utilized to survey 293 Taiwanese university students with biology-related majors. A questionnaire for measuring students' conceptions of memorizing and…

  4. Test of Understanding of Vectors: A Reliable Multiple-Choice Vector Concept Test

    Science.gov (United States)

    Barniol, Pablo; Zavala, Genaro

    2014-01-01

    In this article we discuss the findings of our research on students' understanding of vector concepts in problems without physical context. First, we develop a complete taxonomy of the most frequent errors made by university students when learning vector concepts. This study is based on the results of several test administrations of open-ended…

  5. Effectiveness of Instruction Based on the Constructivist Approach on Understanding Chemical Equilibrium Concepts

    Science.gov (United States)

    Akkus, Huseyin; Kadayifci, Hakki; Atasoy, Basri; Geban, Omer

    2003-01-01

    The purpose of this study was to identify misconceptions concerning chemical equilibrium concepts and to investigate the effectiveness of instruction based on the constructivist approach over traditional instruction on 10th grade students' understanding of chemical equilibrium concepts. The subjects of this study consisted of 71 10th grade…

  6. Developing Pre-Service Teachers' Noticing of Students' Understanding of the Derivative Concept

    Science.gov (United States)

    Sánchez-Matamoros, Gloria; Fernández, Ceneida; Llinares, Salvador

    2015-01-01

    This research study examines the development of the ability of pre-service teachers to notice signs of students' understanding of the derivative concept. It analyses preservice teachers' interpretations of written solutions to problems involving the derivative concept before and after participating in a teacher training module. The results…

  7. Learning about a Level Physics Students' Understandings of Particle Physics Using Concept Mapping

    Science.gov (United States)

    Gourlay, H.

    2017-01-01

    This paper describes a small-scale piece of research using concept mapping to elicit A level students' understandings of particle physics. Fifty-nine year 12 (16- and 17 year-old) students from two London schools participated. The exercise took place during school physics lessons. Students were instructed how to make a concept map and were…

  8. How Earth Educators Can Help Students Develop a Holistic Understanding of Sustainability

    Science.gov (United States)

    Curren, R. R.; Metzger, E. P.

    2017-12-01

    With their expert understanding of planetary systems, Earth educators play a pivotal role in helping students understand the scientific dimensions of solution-resistant ("wicked") challenges to sustainability that arise from complex interactions between intertwined and co-evolving natural and human systems. However, teaching the science of sustainability in isolation from consideration of human values and social dynamics leaves students with a fragmented understanding and obscures the underlying drivers of unsustainability. Geoscience instructors who wish to address sustainability in their courses may feel ill-equipped to engage students in investigation of the fundamental nature of sustainability and its social and ethical facets. This presentation will blend disciplinary perspectives from Earth system science, philosophy, psychology, and anthropology to: 1) outline a way to conceptualize sustainability that synthesizes scientific, social, and ethical perspectives and 2) provide an overview of resources and teaching strategies designed to help students connect science content to the socio-political dimensions of sustainability through activities and assignments that promote active learning, systems thinking, reflection, and collaborative problem-solving.

  9. Beyond Normal Competencies: Understanding Organisation Designs to Develop and Sustain IT-Related Capabilities

    Directory of Open Access Journals (Sweden)

    Acklesh Prasad

    2013-03-01

    Full Text Available It is apparent that IT resources are important for organisations. It is also clear that organisations unique competencies, their IT-related capabilities, leverage the IT resources uniquely to create and sustain competitive advantage. However, IT resources are dynamic, and evolve at an exponential rate. This means that organisations will need to sustain their competencies to leverage opportunities offered by new IT resources. Research on ways to sustain IT-related capabilities is limited and a deeper understanding of this situation is important. Amongst other factors, a possible reason for this lack of progress in this area could be due to the lack of validated measurement items of the theoretical constructs to conduct such studies. We suggest an environment in which organisations could build new and sustain their existing IT-related capabilities. We then report on the development of valid and reliable measures for this environment. The validated measures would be useful in extending our understanding on how firms could sustain their IT-related capabilities. This effort will provide a deeper understanding of how firms can secure sustainable IT-related business value from their acquired IT resources.

  10. Profile of Metacognition of Mathematics and Mathematics Education Students in Understanding the Concept of Integral Calculus

    Science.gov (United States)

    Misu, La; Ketut Budayasa, I.; Lukito, Agung

    2018-03-01

    This study describes the metacognition profile of mathematics and mathematics education students in understanding the concept of integral calculus. The metacognition profile is a natural and intact description of a person’s cognition that involves his own thinking in terms of using his knowledge, planning and monitoring his thinking process, and evaluating his thinking results when understanding a concept. The purpose of this study was to produce the metacognition profile of mathematics and mathematics education students in understanding the concept of integral calculus. This research method is explorative method with the qualitative approach. The subjects of this study are mathematics and mathematics education students who have studied integral calculus. The results of this study are as follows: (1) the summarizing category, the mathematics and mathematics education students can use metacognition knowledge and metacognition skills in understanding the concept of indefinite integrals. While the definite integrals, only mathematics education students use metacognition skills; and (2) the explaining category, mathematics students can use knowledge and metacognition skills in understanding the concept of indefinite integrals, while the definite integrals only use metacognition skills. In addition, mathematics education students can use knowledge and metacognition skills in understanding the concept of both indefinite and definite integrals.

  11. Stakeholder cooperation in implementation of the sustainable development concept: Montenegrin tourist destinations

    Directory of Open Access Journals (Sweden)

    Ljiljana Pjerotic

    2017-06-01

    Full Text Available The importance of involving diverse stakeholders in tourism planning is receiving growing recognition. Tourism destination planning is a complex process, due to the existence of a wide variety of stakeholders with a wide range of opinions, multiple problem visions and different interests. Despite the complexity of the planning process one feature acknowledged for successful destination management planning is high level of stakeholder cooperation. The paper examines the level of stakeholder cooperation on the specific example of the sustainable development concept implementation in Montenegrin tourism. It starts with two hypotheses: first, the development level of instruments for managing tourist destination depends on stakeholder cooperation level in a particular destination, and second, implementation of the sustainable development concept is positively correlated with the development of instruments for managing tourist destination. The results have indicated poor implementation of tourism development plans and low level of stakeholder cooperation.

  12. Is sustainable resource utilisation a relevant concept in Avanersuaq? The walrus case.

    Science.gov (United States)

    Andersen, Astrid Oberborbeck; Heide-Jørgensen, Mads Peter; Flora, Janne

    2018-04-01

    This article addresses the role of Atlantic walrus (Odobenus rosmarus rosmarus) in present-day Avanersuaq from anthropological and biological perspectives, and asks whether or not sustainable resource utilisation is a useful concept in northwest Greenland. We describe the relations that unfold around walrus and walrus hunting, in the communities living adjacent to the North Water polynya on the eastern side of Smith Sound. We examine the interplay of walrus population abundance, hunting practices, uses, and formal (governmental) and informal (traditional) ways of regulating the hunt, and we analyse how walruses acquire multiple values as they circulate in different networks. Sustainable resource utilisation, we conclude, is a concept that is relevant in Avanersuaq and beyond, because it works as a biological standard, and hence organises laws, norms, and practices of formal management. Simultaneously, the term is problematic, because it ignores manifold levels of human and societal values connected to walrus.

  13. Towards Sustainable Agricultural Stewardship: Evolution and Future Directions of the Permaculture Concept

    OpenAIRE

    Jungho Suh

    2014-01-01

    This paper traces the origins of the concept of permaculture and discusses the sustainability of permaculture itself as a form of alternative agriculture. The principles of permaculture are shown to have many views and perspectives in common with Taoism and with Buddhist ecology and economics. The amalgamation of these Oriental traditions can be translated into the Kaya equation and beyond. It is argued that future permaculture movements should focus on revitalising the communitarian spirit o...

  14. Energy to infinity: Concepts of sustainability in five world energy scenarios

    International Nuclear Information System (INIS)

    Van den Haspel, B.; Van Soest, J.P.; De Wit, G.; Corten, F.G.P.

    1994-06-01

    The purpose of the study on the title subject is to gain insight into the consequences that are connected to the argument that sustainability, whatever its definition will be, must be aimed for. As a starting point four concepts that were developed by the Dutch Scientific Council for the Governmental Policy (WRR), are elaborated. The four sustainable concepts can be shown in a matrix combining high and low energy consumption per capita with the high and low use of fossil and nuclear energy, and renewable energy. The names of the concepts are risk-seeking ('high consumption' and 'high fossil', characterized by a flexible and robust nature), risk-taking ('low consumption' and 'high fossil', characterized by the fact that the interaction between man and nature bears risks), risk-accepting ('high consumption' and 'high renewable', characterized by a robust nature within limits), and risk-avoiding ('low consumption' and 'high renewable', characterized by a relatively fragile ecological system). Also a reference scenario is made, based on the present developments. The consequences of those concepts towards scenarios of the energy situation in the year 2040 are calculated and presented in the form of objective, non-conceptual indicators, f.e. world energy consumption and CO 2 emission. Also the marginal conditions to realize the calculated energy situation are outlined, f.e. technology and knowledge transfer, and the energy infrastructure. Results are calculated for the world as a whole and for world 1 (the industrialized world) and world 2 (the developing world). The main conclusions are that (1) aiming at the realization of sustainability always implicates a trend break, a considerable change in all areas; (2) a risk-free future does not exist, although the nature of the risks differ; and (3) it is necessary to intensify and politicize the societal debate on sustainability in the coming years. 12 figs., 9 tabs., 4 appendices, 63 refs

  15. Economic Efficiency of Implementation of the Concept of Sustainable Development of the Urbanized Territories in Russia

    Directory of Open Access Journals (Sweden)

    Kseniia Lapshina

    2017-12-01

    Full Text Available The necessity of transition to sustainable development of the urban territories is proved. The concept of the natural-socio-technical model of urban territories is offered. Green building as one of the aspects of unity in urbanized areas and the natural environment is presented. The basic principles of the paradigm of safe and comfortable urban environment that is compatible with the biosphere are formulated. The structure of the humanitarian balance and the methodology for quantifying them are described. The model of sustainable development of the environment through the comparison of human capacities and parameters of the environment is simulated. The criteria for the compatibility of urbanized territories with the biosphere were formulated as a measure of the sustainability of their development. The example of calculation of an indicator of biospheric compatibility of urbanized areas in relation to transport construction and road infrastructure of the city is given. It shows the economic efficiency of realization of the concept of sustainable development and the creation biospherically of the urban environment on the example of road infrastructure of the city.

  16. Investigation of students’ intermediate conceptual understanding levels: the case of direct current electricity concepts

    International Nuclear Information System (INIS)

    Aktan, D Cobanoglu

    2013-01-01

    Conceptual understanding is one of the main topics in science and physics education research. In the majority of conceptual understanding studies, students’ understanding levels were categorized dichotomously, either as alternative or scientific understanding. Although they are invaluable in many ways, namely developing new instructional materials and assessment instruments, students’ alternative understandings alone are not sufficient to describe students’ conceptual understanding in detail. This paper introduces an example of a study in which a method was developed to assess and describe students’ conceptual understanding beyond alternative and scientific understanding levels. In this study, six undergraduate students’ conceptual understanding levels of direct current electricity concepts were assessed and described in detail by using their answers to qualitative problems. In order to do this, conceptual understanding indicators are described based on science and mathematics education literature. The students’ understanding levels were analysed by assertion analysis based on the conceptual understanding indicators. The results indicated that the participants demonstrated three intermediate understanding levels in addition to alternative and scientific understanding. This paper presents the method and its application to direct current electricity concepts. (paper)

  17. Understandability of Goal-Oriented Requirements Engineering Concepts for Enterprise Architects

    NARCIS (Netherlands)

    Engelsman, W.; Wieringa, Roelf J.

    2014-01-01

    ArchiMate is a graphical language for modelling business goals and enterprise architecture. In previous work we identified possible understandability issues with the goal-oriented notations in ArchiMate. [Problem] We investigated how understandable the goal-oriented concepts really were in two

  18. Relational Understanding of the Derivative Concept through Mathematical Modeling: A Case Study

    Science.gov (United States)

    Sahin, Zulal; Aydogan Yenmez, Arzu; Erbas, Ayhan Kursat

    2015-01-01

    The purpose of this study was to investigate three second-year graduate students' awareness and understanding of the relationships among the "big ideas" that underlie the concept of derivative through modeling tasks and Skemp's distinction between relational and instrumental understanding. The modeling tasks consisting of warm-up,…

  19. Mathematical Representation by Students in Building Relational Understanding on Concepts of Area and Perimeter of Rectangle

    Science.gov (United States)

    Anwar, Rahmad Bustanul; Yuwono, Ipung; As'ari, Abdur Rahman; Sisworo; Dwi, Rahmawati

    2016-01-01

    Representation is an important aspect of learners in building a relational understanding of mathematical concepts. But the ability of a mathematical representation of students in building relational understanding is still very limited. The purpose of this research is to description of mathematical representation of students who appear in building…

  20. In-Service Elementary Teachers' Understanding of Magnetism Concepts before and after Non-Traditional Instruction

    Science.gov (United States)

    Atwood, Ronald K.; Christopher, John E.; Combs, Rebecca K.; Roland, Elizabeth E.

    2010-01-01

    Magnetism is a topic frequently studied in elementary schools. Since magnetism is a popular topic and is included in national science education standards, it might be assumed that elementary teachers have a good understanding of this topic and that elementary students develop a good understanding of fundamental magnetism concepts. Unfortunately,…

  1. ANALYSIS LEARNING MODEL OF DISCOVERY AND UNDERSTANDING THE CONCEPT PRELIMINARY TO PHYSICS LEARNING OUTCOMES SMA

    Directory of Open Access Journals (Sweden)

    Sri Rosepda Sebayang

    2015-12-01

    Full Text Available This study aims: 1 to determine whether the student learning outcomes using discovery learning is better than conventional learning 2 To determine whether the learning outcomes of students who have a high initial concept understanding better then of low initial concept understanding, and 3 to determine the effect of interaction discovery learning and understanding of the initial concept of the learning outcomes of students. The samples in this study was taken by cluster random sampling two classes where class X PIA 3 as a class experiment with applying discovery learning and class X PIA 2 as a control class by applying conventional learning. The instrument used in this study is a test of learning outcomes in the form of multiple-choice comprehension test initial concept description form. The results of research are: 1 learning outcomes of students who were taught with discovery learning is better than the learning outcomes of students who are taught by conventional learning, 2 student learning outcomes with high initial conceptual understanding better than the learning outcomes of students with low initial conceptual understanding, and 3 there was no interaction between discovery learning and understanding of initial concepts for the student learning outcomes.

  2. Operationalising the Sustainable Knowledge Society Concept through a Multi-dimensional Scorecard

    Science.gov (United States)

    Dragomirescu, Horatiu; Sharma, Ravi S.

    Since the early 21st Century, building a Knowledge Society represents an aspiration not only for the developed countries, but for the developing ones too. There is an increasing concern worldwide for rendering this process manageable towards a sustainable, equitable and ethically sound societal system. As proper management, including at the societal level, requires both wisdom and measurement, the operationalisation of the Knowledge Society concept encompasses a qualitative side, related to vision-building, and a quantitative one, pertaining to designing and using dedicated metrics. The endeavour of enabling policy-makers mapping, steering and monitoring the sustainable development of the Knowledge Society at national level, in a world increasingly based on creativity, learning and open communication, led researchers to devising a wide range of composite indexes. However, as such indexes are generated through weighting and aggregation, their usefulness is limited to retrospectively assessing and comparing levels and states already attained; therefore, to better serve policy-making purposes, composite indexes should be complemented by other instruments. Complexification, inspired by the systemic paradigm, allows obtaining "rich pictures" of the Knowledge Society; to this end, a multi-dimensional scorecard of the Knowledge Society development is hereby suggested, that seeks a more contextual orientation towards sustainability. It is assumed that, in the case of the Knowledge Society, the sustainability condition goes well beyond the "greening" desideratum and should be of a higher order, relying upon the conversion of natural and productive life-cycles into virtuous circles of self-sustainability.

  3. Implementing AACN's recommendations for environmental sustainability in colleges of nursing: from concept to impact.

    Science.gov (United States)

    Butterfield, Patricia; Schenk, Elizabeth; Eide, Phyllis; Hahn, Laura; Postma, Julie; Fitzgerald, Cynthia; Oneal, Gail

    2014-01-01

    In 2011, the American Association of Colleges of Nursing (AACN) released a guidance report titled Toward an Environmentally Sustainable Academic Enterprise: An AACN Guide for Nursing Education. The report was developed in response to a vivid slide presentation at an AACN meeting depicting the deleterious public and environmental health effects of global industrialization. Following the presentation, AACN members capitalized on the opportunity to provide national leadership to U.S. colleges of nursing in regard to environmental sustainability and stewardship. This article summarizes key features of the AACN plan and outlines one college's multifaceted implementation plan. The goal of the implementation plan was to translate the AACN recommendations from concept into college-specific actions. Specific steps taken by the college included the following: (a) increasing student and faculty awareness, (b) greening business operations, (c) increased participation in media events, (d) leveraging the impact of national sustainability initiatives, and (e) enhancing curricula at the undergraduate and graduate levels. Through this work, the college achieved not only a higher standard of sustainability within its own walls but also a richer appreciation of the importance of educating nurses as future stewards in an environmentally sustainable health care system. © 2014.

  4. The sustainability of communicative packaging concepts in the food supply chain. A case study: part 2. Life cycle costing and sustainability assessment

    NARCIS (Netherlands)

    Dobon, A.; Cordero, P.; Pereira da Silva, F.I.D.G.; Ostergaard, S.R.; Antvorskov, H.; Robertsson, M.; Smolander, M.; Hortal, M.

    2011-01-01

    This paper is the second part of a two-paper series dealing with the sustainability evaluation of a new communicative packaging concept. The communicative packaging concept includes a device that allows changing the expiry date of the product as function of temperature during transport and storage:

  5. Design as Driver for Understanding Sustainability and Creating Value in the Garment Sector

    DEFF Research Database (Denmark)

    Skjold, Else; Lønne, Irene Alma

    2016-01-01

    on different levels. In order to propose a new frame for understanding the company’s value creation we draw upon Heskett’s models (2003) and his explanation of the relationship between economic theories and design (2008). To explain the relationship between design and sustainability we further elaborate...... towards theories connected to the transformation economy (Gardien 2014) and explain how Kopenhagen Fur’s potential for including design and sustainability throughout their entire value chain aligns with the present understanding in the fashion and textile industry.......This paper examines the value of design in business seen through the example of the Danish company Kopenhagen Fur. Design School Kolding (DK) has during 2014 and 2015 conducted a design research project and study with focus on sustainability as a key parameter in the company’s future use of design...

  6. Do People Understand Spatial Concepts: The Case of First-Order Primitives

    OpenAIRE

    Golledge, Reginald G.

    1992-01-01

    The purpose of this paper is to examine whether people in general understand elementary spatial concepts, and to examine whether or not naive spatial knowledge includes the ability to understand important spatial primitives that are built into geographic theory, spatial databases and geographic information systems (GIS). The extent of such understanding is a partial measure of spatial ability. Accurate indicators or measures of spatial ability can be used to explain different types of spatial...

  7. Hans-Georg Gadamer’s philosophical hermeneutics: Concepts of reading, understanding and interpretation

    OpenAIRE

    Paul Regan

    2012-01-01

    Hans-Georg Gadamer’s philosophical hermeneutics is a popular qualitative research interpretive method aiming to explore the meaning of individual experiences in relation to understanding human interpretation. Gadamer identifies that authentic engagement with reading requires awareness of the inter-subjective nature of understanding in order to promote a reflective engagement with the text. The main concepts of Gadamer’s view of reading and understanding are explored in this paper in relation ...

  8. The concept of sustainability and the use of outcome indicators. A case study to continue a successful health counselling intervention.

    Science.gov (United States)

    Jansen, Maria; Harting, Janneke; Ebben, Nicole; Kroon, Bram; Stappers, Jan; Van Engelshoven, Esther; de Vries, Nanne

    2008-12-01

    To ensure the continuation of a successful pilot programme, the change process and the concept of sustainability need to be elaborated. So far, there are different theories on organizational change and sustainability but its practical application stay far behind. To test the practical application of a theory-based concept of sustainability and to assess the role of the change agent. A health counselling programme for high-risk cardiovascular patients, called Heartbeat 2, was used as a case study. Outcome indicators were assessed based on the questions: Why should health counselling be sustained? How should this be done and by whom? How much needs to occur and by when? Data were derived from registrations, reports and focus group interviews. The results indicate a need for a linkage system in the final stages of change so that the programme is maintained. Limitations of the external change agent are described. The outcome indicators appeared to be an adequate operationalization to monitor sustainability. The change process leading up to sustainability appeared to be highly complex due to unpredictable and unforeseen external factors. Our concept of sustainability appeared to be an adequate tool for the change agent to assess the extent of sustainability. An external change agent has limited influence on the management's decision-making processes during the sustainability stage. As long as the context is changing, definite choices to sustain the innovative service of health counselling in hospitals will not be made, which inherently means an ongoing change process to sustainability.

  9. Can the Concept of Integrative and Segregative Institutions Contribute to the Framing of Institutions of Sustainability?

    Directory of Open Access Journals (Sweden)

    Konrad Hagedorn

    2015-01-01

    Full Text Available This paper begins with the question “What is special about those institutions that bring about sustainability”? In an attempt to answer this, I use the Institutions of Sustainability (IoS framework, which structures sustainability analytically according to four main categories, namely: transactions, actors, institutions and governance structures. I then argue that sustainability has to do with balancing two sorts of costs an actor may face while being constrained by institutions. One is the costs from the integrative effects of institutions on his individual decision making. The other is the costs from the segregative effect of institutions. In this way, sustainability can be understood as societies’ compromise between institutions that integrate individual actors’ decisions in a wider system, holding them fully responsible for more or less all of the effects of their choices and those institutions that partly free individual decision makers from parts of such responsibilities. If a governance problem is characterized by a high degree of “decomposability”, segregative rules may be sufficient. The more a governance problem is characterized by complexity due to low modularity and high functional interdependencies, the more accurate integrative rules may be. The paper concludes by identifying “sustainability area of institutional embedding” as a regulative idea in understanding sustainability.

  10. Sustainability of utility-scale solar energy – critical ecological concepts

    Science.gov (United States)

    Moore-O'Leary, Kara A.; Hernandez, Rebecca R.; Johnston, Dave S.; Abella, Scott R.; Tanner, Karen E.; Swanson, Amanda C.; Kreitler, Jason R.; Lovich, Jeffrey E.

    2017-01-01

    Renewable energy development is an arena where ecological, political, and socioeconomic values collide. Advances in renewable energy will incur steep environmental costs to landscapes in which facilities are constructed and operated. Scientists – including those from academia, industry, and government agencies – have only recently begun to quantify trade-offs in this arena, often using ground-mounted, utility-scale solar energy facilities (USSE, ≥1 megawatt) as a model. Here, we discuss five critical ecological concepts applicable to the development of more sustainable USSE with benefits over fossil-fuel-generated energy: (1) more sustainable USSE development requires careful evaluation of trade-offs between land, energy, and ecology; (2) species responses to habitat modification by USSE vary; (3) cumulative and large-scale ecological impacts are complex and challenging to mitigate; (4) USSE development affects different types of ecosystems and requires customized design and management strategies; and (5) long-term ecological consequences associated with USSE sites must be carefully considered. These critical concepts provide a framework for reducing adverse environmental impacts, informing policy to establish and address conservation priorities, and improving energy production sustainability.

  11. Understanding musical concepts of tempo and instrument in the third grade of elementary school

    OpenAIRE

    Petrović Vesna; Vukićević Nataša

    2015-01-01

    The paper deals with examining the quality of knowledge, i.e. the levels of internalization of the concepts tempo and instrument taught within the subject Musical Culture in the third grade of elementary school. The quality of knowledge we defined by different levels of understanding the selected concepts. Apart from theoretical considerations of general questions regarding the process of musical education in elementary school, in the available methodology literature the authors do not discus...

  12. Understanding musical concepts of tempo and instrument in the third grade of elementary school

    Directory of Open Access Journals (Sweden)

    Petrović Vesna

    2015-01-01

    Full Text Available The paper deals with examining the quality of knowledge, i.e. the levels of internalization of the concepts tempo and instrument taught within the subject Musical Culture in the third grade of elementary school. The quality of knowledge we defined by different levels of understanding the selected concepts. Apart from theoretical considerations of general questions regarding the process of musical education in elementary school, in the available methodology literature the authors do not discuss the problem of concepts development in Musical Culture teaching. Hence, it can be safely said that this paper opens a new research field in the area of methodology of Musical Culture teaching. Additionally, one of the important aims of our work is to stress concrete teaching procedures which can stimulate a more efficient development of musical concepts. The obtained results show that the knowledge of the majority of the third-grade students of the concept tempo (and instrument is on the initial pre-conceptual level, and the level of knowing verbal definitions. According to this, the teaching of Musical Culture in the third grade of elementary school insufficiently recognizes the unique nature of musical acquisition and its developmental dimension, in comparison to other school subjects. The development of scientific concepts in Musical Culture teaching starts with spontaneous musical experiences, but for understanding the concepts, and their efficient application, necessary is the student's thoughtful engagement and processing of sound and pre-conceptual knowledge as well as theoretical knowledge.

  13. Environmental sustainability control by water resources carrying capacity concept: application significance in Indonesia

    Science.gov (United States)

    Djuwansyah, M. R.

    2018-02-01

    This paper reviews the use of Water Resources carrying capacity concept to control environmental sustainability with the particular note for the case in Indonesia. Carrying capacity is a capability measure of an environment or an area to support human and the other lives as well as their activities in a sustainable manner. Recurrently water-related hazards and environmental problems indicate that the environments are exploited over its carrying capacity. Environmental carrying capacity (ECC) assessment includes Land and Water Carrying Capacity analysis of an area, suggested to always refer to the dimension of the related watershed as an incorporated hydrologic unit on the basis of resources availability estimation. Many countries use this measure to forecast the future sustainability of regional development based on water availability. Direct water Resource Carrying Capacity (WRCC) assessment involves population number determination together with their activities could be supported by available water, whereas indirect WRCC assessment comprises the analysis of supply-demand balance status of water. Water resource limits primarily environmental carrying capacity rather than the land resource since land capability constraints are easier. WRCC is a crucial factor known to control land and water resource utilization, particularly in a growing densely populated area. Even though capability of water resources is relatively perpetual, the utilization pattern of these resources may change by socio-economic and cultural technology level of the users, because of which WRCC should be evaluated periodically to maintain usage sustainability of water resource and environment.

  14. Educational potential in the concept of the Arctic region sustainable development

    Directory of Open Access Journals (Sweden)

    Agarkov S. A.

    2015-12-01

    Full Text Available Problem-oriented analysis of the status and prospects of vocational education development of the Murmansk region in the concept of the Arctic sustainable development has been worked out. It has been shown that establishing the pivotal university on the basis of the Murmansk State Technical University is the most effective model for formation of the regional vocational training system and meets the priorities of the state Arctic and the national marine policy of the Russian Federation, the goals and objectives of sustainable socio-economic development of the Murmansk region. The necessity to provide the intellectual leadership of the region where just the higher engineering education creates human potential (capital has been substantiated; it has been pointed out that engineering education is the basis of innovative development of the Arctic economy

  15. The concept of sustainable development as a methodological base to form strategy for enterprises of oil complex

    Directory of Open Access Journals (Sweden)

    D. Smirnov

    2015-01-01

    Full Text Available The article substantiates the need for the enterprises of the oil complex as a methodological basis of their strategy concept of sustainable development, according to which natural resources are treated as natural capital, similar in quality funds. The author of the article analyzed the research of Russian and foreign scientists on the theory of sustainable development from different perspectives, as well as the Concept of the Russian Federation transition to sustainable development, the main criteria for sustainability, particularly management of industrial enterprises in the field of nature and the environment. It was found that the implementation of sustainable development ideas "oil for future generations" is not only a moral and environmental dimension, and financial performance. If companies invest in the exploration work sufficient to sustain growth of proved reserves of raw materials, it will inevitably raise the level of its capitalization.

  16. Elementary pre-service teachers' conceptual understanding of dissolving: a Vygotskian concept development perspective

    Science.gov (United States)

    Harrell, Pamela; Subramaniam, Karthigeyan

    2015-09-01

    Background and purpose: The purpose of this study was to investigate and identify the nature and the interrelatedness of pre-service teachers' misconceptions and scientific concepts for explaining dissolving before, during, and after a 5E learning cycle lesson on dissolving, the intervention. Sample, design, and methods: Guided by Vygotsky's theory of concept development, the study focused specifically on the spontaneous, and spontaneous pseudo-concepts held by the 61 elementary pre-service teachers during a 15-week science methods course. Data included concept maps, interview transcripts, written artifacts, drawings, and narratives, and were thematically analyzed to classify concepts and interrelatedness. Results: Results of the study showed that spontaneous pseudo-concepts (1) dominated pre-service teachers' understandings about dissolving throughout the study, and (2) were simply associated with scientific concepts during and after the intervention. Conclusion: Collectively, the results indicated that the pre-service teachers' did not acquire a unified system of knowledge about dissolving that could be characterized as abstract, generalizable, and hierarchical. Implications include the need for (1) familiarity with pre-service teachers' prior knowledge about science content; (2) a variety of formative assessments to assess their misconceptions; (3) emphasizing the importance of dialectical method for concept development during instruction; and (4) skillful content instructors.

  17. Advances in integrated and sustainable supply chain planning concepts, methods, tools and solution approaches toward a platform for industrial practice

    CERN Document Server

    Laínez-Aguirre, José Miguel

    2015-01-01

    Decision making at the enterprise level often encompass not only production operations and  product R&D, but other strategic functions such as financial planning and marketing. With the aim of maximizing growth and a firm’s value, companies often focus on co-ordinating these functional components as well as traditional hierarchical decision levels. Understanding this interplay can enhance enterprise capabilities of adaptation and response to uncertainties arising from internal processes as well as the external environment. This book presents concepts, methods, tools and solutions based on mathematical programming, which provides the quantitative support needed for integrated decision-making and ultimately for improving the allocation of overall corporate resources (e.g., materials, cash and personnel). Through a systems perspective, the integrated planning of the supply chain also promotes activities of reuse, reduction and recycling for achieving more sustainable environmental impacts of production/di...

  18. The concept of sustainability and the use of outcome indicators. A case study to continue a successful health counselling intervention

    NARCIS (Netherlands)

    Jansen, Maria; Harting, Janneke; Ebben, Nicole; Kroon, Bram; Stappers, Jan; van Engelshoven, Esther; de Vries, Nanne

    2008-01-01

    BACKGROUND: To ensure the continuation of a successful pilot programme, the change process and the concept of sustainability need to be elaborated. So far, there are different theories on organizational change and sustainability but its practical application stay far behind. OBJECTIVES: To test the

  19. Understanding the earth systems of Malawi: Ecological sustainability, culture, and place-based education

    Science.gov (United States)

    Glasson, George E.; Frykholm, Jeffrey A.; Mhango, Ndalapa A.; Phiri, Absalom D.

    2006-07-01

    The purpose of this 2-year study was to investigate Malawian teacher educators' perspectives and dispositions toward teaching about ecological sustainability issues in Malawi, a developing country in sub-Sahara Africa. This study was embedded in a larger theoretical framework of investigating earth systems science through the understanding of nature-knowledge-culture systems from local, place-based perspectives. Specifically, we were interested in learning more about eco-justice issues that are related to environmental degradation in Malawi and the potential role of inquiry-oriented pedagogies in addressing these issues. In a science methods course, the African educators' views on deforestation and teaching about ecological sustainability were explored within the context of the local environment and culture. Teachers participated in inquiry pedagogies designed to promote the sharing of perspectives related to the connections between culture and ecological degradation. Strategies encouraging dialogue and reflection included role-playing, class discussions, curriculum development activities, teaching experiences with children, and field trips to a nature preserve. Data were analyzed from postcolonial and critical pedagogy of place theoretical perspectives to better understand the hybridization of viewpoints influenced by both Western and indigenous science and the political hegemonies that impact sustainable living in Malawi. Findings suggested that the colonial legacy of Malawi continues to impact the ecological sustainability issue of deforestation. Inquiry-oriented pedagogies and connections to indigenous science were embraced by the Malawian educators as a means to involve children in investigation, decision making, and ownership of critical environmental issues.

  20. Understanding Innovation for Sustainable Business Management Capabilities and Competencies under Uncertainty

    Directory of Open Access Journals (Sweden)

    Kuo-Jui Wu

    2015-10-01

    Full Text Available In recent years, many firms have come to understand that innovation is an important issue in sustainable business management, as it helps improve firm capabilities and competencies. Because of the fiercely competitive environment in the hotel industry, innovation has become a critical factor in the process of hotel differentiation, leading to sustainable business success. However, the literature has not thoroughly examined the role of innovation or the hierarchical structure of the capabilities and competencies in sustainable business management. This study adopts interval-valued triangular fuzzy numbers and grey relational analysis to provide a competitive priority ranking for the aspects and criteria that assist firms in decision-making. The study results indicate that innovation in technology capabilities and networking and social capabilities—in addition to competencies in systemic thinking—are the most important aspects of sustainable business management. In particular, this study indicates that to succeed in building a sustainable business in the hotel industry, firms should upgrade and integrate their business technologies, collaborate with actors inside and outside the firm, build trust as well as a shared vision that includes common agreement, and develop competencies in inventive thinking to support innovation and foster changes in strategy, structure, administrative procedures, and systems when necessary.

  1. The Precalculus Concept Assessment: A Tool for Assessing Students' Reasoning Abilities and Understandings

    Science.gov (United States)

    Carlson, Marilyn; Oehrtman, Michael; Engelke, Nicole

    2010-01-01

    This article describes the development of the Precalculus Concept Assessment (PCA) instrument, a 25-item multiple-choice exam. The reasoning abilities and understandings central to precalculus and foundational for beginning calculus were identified and characterized in a series of research studies and are articulated in the PCA Taxonomy. These…

  2. High School Students' Proficiency and Confidence Levels in Displaying Their Understanding of Basic Electrolysis Concepts

    Science.gov (United States)

    Sia, Ding Teng; Treagust, David F.; Chandrasegaran, A. L.

    2012-01-01

    This study was conducted with 330 Form 4 (grade 10) students (aged 15-16 years) who were involved in a course of instruction on electrolysis concepts. The main purposes of this study were (1) to assess high school chemistry students' understanding of 19 major principles of electrolysis using a recently developed 2-tier multiple-choice diagnostic…

  3. A Cross-Age Study of an Understanding of Light and Sight Concepts in Physics

    Science.gov (United States)

    Uzun, Salih; Alev, Nedim; Karal, Isik Saliha

    2013-01-01

    The aim of this study is to reveal the students' and pre-service teachers' understanding of light, sight and related concepts at different educational levels, from primary to higher education. A cross-sectional approach was used since the participants were of different age and educational level. The sample of this study consisted of 30 eighth…

  4. A Cross-Age Study of Student Understanding of the Concept of Homeostasis.

    Science.gov (United States)

    Westbrook, Susan L.; Marek, Edmund A.

    1992-01-01

    The conceptual views of homeostasis held by students (n=300) in seventh grade life science, tenth grade biology, and college zoology were examined. A biographical questionnaire, the results from two Piagetian-like developmental tasks, and a concept evaluation statement of homeostasis were collected from each student. Understanding of the concept…

  5. Determination of Factors Related to Students' Understandings of Heat, Temperature and Internal Energy Concepts

    Science.gov (United States)

    Gurcay, Deniz; Gulbas, Etna

    2018-01-01

    The purpose of this research is to investigate the relationships between high school students' learning approaches and logical thinking abilities and their understandings of heat, temperature and internal energy concepts. Learning Approach Questionnaire, Test of Logical Thinking and Three-Tier Heat, Temperature and Internal Energy Test were used…

  6. Students' Understanding of Genetics Concepts: The Effect of Reasoning Ability and Learning Approaches

    Science.gov (United States)

    Kiliç, Didem; Saglam, Necdet

    2014-01-01

    Students tend to learn genetics by rote and may not realise the interrelationships in daily life. Because reasoning abilities are necessary to construct relationships between concepts and rote learning impedes the students' sound understanding, it was predicted that having high level of formal reasoning and adopting meaningful learning orientation…

  7. 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…

  8. Social Studies Student Teachers' Levels of Understanding Sociology Concepts within Social Studies Curriculum

    Science.gov (United States)

    Karatekin, Kadir

    2013-01-01

    This study aims at investigating social studies student teachers' levels of understanding sociology concepts within social studies curriculum. Study group of the research consists of 266 teacher candidates attending the Department of Social Studies, Faculty of Education, Kastamonu University during 2012 to 2013 education year. A semi-structured…

  9. 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…

  10. Building Students' Understanding of Quadratic Equation Concept Using Naïve Geometry

    Science.gov (United States)

    Fachrudin, Achmad Dhany; Putri, Ratu Ilma Indra; Darmawijoyo

    2014-01-01

    The purpose of this research is to know how Naïve Geometry method can support students' understanding about the concept of solving quadratic equations. In this article we will discuss one activities of the four activities we developed. This activity focused on how students linking the Naïve Geometry method with the solving of the quadratic…

  11. . . . And Action! Using Science Skits to Evaluate Students' Understanding of Science Concepts

    Science.gov (United States)

    Hershberger, Kimber; Kur, Judith; Haefner, Leigh

    2013-01-01

    The authors of this article believe that giving students opportunities to talk about and represent science concepts helps them develop deeper, more integrated understandings, while providing teachers with rich, alternative methods of assessment. They provide Science units and instructional approaches that are consistent with science and…

  12. Application of Two-Valued and Fuzzy Logics Teaching in Understanding the Precise and Approximate Concepts

    Science.gov (United States)

    Bayekolaei, Mehraneh Delaviz; Nor, Norjoharuddeen Bin Mohd; Sohaei, Reza; Berneti, Abdul Karim Maleki; Zerafat, Romina; Saravi, Hanieh Rasouli

    2015-01-01

    This research aimed to examine the application of two-valued and fuzzy logics teaching in better understanding the precise approximate concepts of chapter 4 of Sixth grade mathematics. Participants of this study were 30 Sixth grade mathematics students from an elementary school in Sari (a city in the north of Iran) in the academic year of…

  13. Conceptual Understanding of Acids and Bases Concepts and Motivation to Learn Chemistry

    Science.gov (United States)

    Cetin-Dindar, Ayla; Geban, Omer

    2017-01-01

    The purpose of this study was to investigate the effect of 5E learning cycle model oriented instruction (LCMI) on 11th-grade students' conceptual understanding of acids and bases concepts and student motivation to learn chemistry. The study, which lasted for 7 weeks, involved two groups: An experimental group (LCMI) and a control group (the…

  14. The Integration of Green Chemistry Experiments with Sustainable Development Concepts in Pre-Service Teachers' Curriculum: Experiences from Malaysia

    Science.gov (United States)

    Karpudewan, Mageswary; Ismail, Zurida Hg; Mohamed, Norita

    2009-01-01

    Purpose: The purpose of this paper is to introduce green chemistry experiments as laboratory-based pedagogy and to evaluate effectiveness of green chemistry experiments in delivering sustainable development concepts (SDCs) and traditional environmental concepts (TECs). Design/methodology/approach: Repeated measure design was employed to evaluate…

  15. The concept of community poverty reduction in coastal area of Surabaya based on sustainable livelihood approach

    Science.gov (United States)

    Gai, A. M.; Soewarni, I.; M, M., Sir

    2018-04-01

    Multidimensional poverty becomes a trademark of fisherman community including the community in Surabaya. The fishermen in Surabaya belong to a society with quite apprehensive welfare in all aspects covering economy, social, and environment. Therefore, this research aims to organize poverty reduction concept in coastal area of Surabaya based on sustainable livelihood which assesses poverty through 5 (five) livelihood assets i.e. human asset, natural asset, social asset, physical asset, and financial asset. This research is a qualitative research using rationalistic approach with explorative, descriptive, and perspective nature. Primary data collected using Participatory Poverty Assessment (PPA) and secondary data collected through agency and literature survey. Purposive sampling was employed in getting the sample. Then, the data were analyzed using content analysis, statistics descriptive analysis, and delphi analysis. The results show that sustainable livelihood level in coastal area of Surabaya indicates the human asset is 65% at the SLA level and the lowest is social asset which is 20%, and financial asset is the most affecting factors of poverty in coastal area of Surabaya since the expense for fuel cannot be compared to the fish catched. Community empowerment is the concept proposed to overcome the poverty problems in coastal area of Surabaya.

  16. Concept Communication and Interpretation of Illness: A Holistic Model of Understanding in Nursing Practice.

    Science.gov (United States)

    Nordby, Halvor

    To ensure patient communication in nursing, certain conditions must be met that enable successful exchange of beliefs, thoughts, and other mental states. The conditions that have received most attention in the nursing literature are derived from general communication theories, psychology, and ethical frameworks of interpretation. This article focuses on a condition more directly related to an influential coherence model of concept possession from recent philosophy of mind and language. The basic ideas in this model are (i) that the primary source of understanding of illness experiences is communicative acts that express concepts of illness, and (ii) that the key to understanding patients' concepts of illness is to understand how they depend on patients' lifeworlds. The article argues that (i) and (ii) are especially relevant in caring practice since it has been extensively documented that patients' perspectives on disease and illness are shaped by their subjective horizons. According to coherentism, nurses need to focus holistically on patients' horizons in order to understand the meaning of patients' expressions of meaning. Furthermore, the coherence model implies that fundamental aims of understanding can be achieved only if nurses recognize the interdependence of patients' beliefs and experiences of ill health. The article uses case studies to elucidate how the holistic implications of coherentism can be used as conceptual tools in nursing.

  17. Concept of ‘Good Urban Governance’ and Its Application in Sustainable Urban Planning

    Science.gov (United States)

    Badach, Joanna; Dymnicka, Małgorzata

    2017-10-01

    Contemporary urban theory and practice in the post-industrial era is increasingly often turning towards an approach based on sustainable development. That concept bearing the traits of a paradigm has grown on the ground of broad quest for an alternative to the existing development model of the industrial civilisation. It has gained wide social acceptance and is the basis for many development and environmental programmes at the level of national and local government. It puts in a new light the socio-cultural, ecological and energy-related aspects of space as well as its value and aesthetics. A model of governing the city called ‘good urban governance’ is in a very close relation with the concept of sustainable development. It is based on the principles of inclusiveness, citizenship, accountability, processuality and effectiveness. Although this approach is not entirely novel, it stays valid and open to new challenges connected with satisfying human needs in the urban built environment on the basis of new contemporary conceptualisations such as ‘smart governance’, ‘governing the smart city’, ‘network governance’ and ‘governance networks’. The advantages of this approach based on the assumption of multidimensionality and subjectivity, matching the various and seemingly contradicting interests with a sense of responsibility for the quality of life in the urban environment are often underlined both in literature and in academic debate. The aim of this article is an attempt to present selected practices in spatial planning which employ the principles of the idea of co-governance. It will include various methodological assumptions and criteria applied in ‘good urban governance’. The intention will be to show its new research and application possibilities in countries like Poland where the idea of governance and sustainable development remains a matter of theory.

  18. Incorporating the soil function concept into sustainability appraisal of remediation alternatives.

    Science.gov (United States)

    Volchko, Yevheniya; Norrman, Jenny; Bergknut, Magnus; Rosén, Lars; Söderqvist, Tore

    2013-11-15

    Soil functions are critical for ecosystem survival and thus for an ecosystem's provision of services to humans. This is recognized in the proposed EU Soil Framework Directive from 2006, which lists seven important soil functions and services to be considered in a soil management practice. Emerging regulatory requirements demand a holistic view on soil evaluation in remediation projects. This paper presents a multi-scale, structured and transparent approach for incorporating the soil function concept into sustainability appraisal of remediation alternatives using a set of ecological, socio-cultural and economic criteria. The basis for the presented approach is a conceptualization of the linkages between soil functions and ecosystem services connected to with the sustainability paradigm. The approach suggests using (1) soil quality indicators (i.e. physical, chemical and biological soil properties) for exploring the performance of soil functions at the site level, and (2) soil service indicators (i.e. value-related measurements) for evaluating the performance of services resulting from soil functions across all levels of the spatial scale. The suggested approach is demonstrated by application in a Multi-Criteria Decision Analysis (MCDA) framework for sustainability appraisals of remediation alternatives. Further, the possibilities of using soil quality indicators for soil function evaluation are explored by reviewing existing literature on potential negative and positive effects of remediation technologies on the functionality of the treated soil. The suggested approach for including the soil function concept in remediation projects is believed to provide a basis for better informed decisions that will facilitate efficient management of contaminated land and to meet emerging regulatory requirements on soil protection. Copyright © 2013 Elsevier Ltd. All rights reserved.

  19. Understanding Sustainable Diets: A Descriptive Analysis of the Determinants and Processes That Influence Diets and Their Impact on Health, Food Security, and Environmental Sustainability 1 2 3

    OpenAIRE

    Johnston, Jessica L.; Fanzo, Jessica C.; Cogill, Bruce

    2014-01-01

    The confluence of population, economic development, and environmental pressures resulting from increased globalization and industrialization reveal an increasingly resource-constrained world in which predictions point to the need to do more with less and in a “better” way. The concept of sustainable diets presents an opportunity to successfully advance commitments to sustainable development and the elimination of poverty, food and nutrition insecurity, and poor health outcomes. This study exa...

  20. Photoelectric effect experiment for understanding the concept of quantization of radiation energy

    Directory of Open Access Journals (Sweden)

    Yeimy Gerardine Berrios Saavedra

    2016-09-01

    Full Text Available This study forms part of research on the teaching of physics. The question that directed it was: How a proposed classroom, based on the photoelectric effect experiment helps pres-service teachers of physics of the Universidad Pedagógica Nacional to expand their understanding of the concept of quantization energy of radiation? The construction of the theoretical framework developed on the one hand, with scientific ideas about the quantization of energy, and moreover, with the educational proposals of teaching for understanding. This pedagogical approach was guided by the investigative gaze of the study methodology based on design, taking as main element the use of learning tools such as the task to Predict, Experiment and Explain (PEE. It was found that these tasks fomented the initial understandings of students about the concept, while they enriched and transformed progressively their models and scientific ideas, promoting aspects of scientific work in developing curiosity, imagination and motivation.

  1. Perceptions of Female and Male University Students on Sustainable Maritime Development Concept: A Case Study from Turkey

    Directory of Open Access Journals (Sweden)

    Cemile Solak Fışkın

    2015-06-01

    Full Text Available Objective: It is a fact that maritime transport is essential for achieving sustainable transport development, and the concept of sustainable development has recently raised great interest in maritime industry. The fundamental role in driving and supporting the sustainability should be pursued by young people, and in Turkey as a developing country, sustainable maritime development should be particularly emphasized by the young population amounting to one third of total. The aim of this paper is to analyze the perceptions of female and male students on sustainable maritime development concept. Method: In order to reach this aim, the study was carried out using a questionnaire distributed to maritime faculty students in Turkey. Three pillars of sustainable maritime development were used to reveal how important the issue is for students and how they perceive them. Results: The study indicated strong emphasis of social sustainable maritime development while the key factor perceived as water pollution as one of the environmental item. Conclusion: The results of the study reveal not only the perceptional differences between Turkish female and male students on sustainable development concept but also on sources of environmental concerns.

  2. On the concept and legal nature of sustainable development: Does 'environmental law' exist?

    Directory of Open Access Journals (Sweden)

    Prica Miloš

    2014-01-01

    reflects the governing modus operandi of the covert power-holders. When this issue is observed from the aspect of national law, some legal scholars consider that 'environmental law' is a branch of law. However, this standpoint is based on the normativists' misconception that the law equals the norm. As a matter of fact, the norm is only a source for the creation of law, whereas law implies the entire body of legal relations and legal institutes. With this in mind, the essential condition for establishing a branch of law is that it has to be rooted in judicature. Thus, 'environmental law' cannot be designated as a branch of law. Moreover, as the principle of sustainable development in the national legislation is rooted neither in the judicature nor in the legal perception, this fact has given rise to the conclusion that it may be qualified as a purely declarative legal-political principle. In that context, the author discusses the concept and the classification of legal principles as a necessary presumption for shaping the regulatory legal nature of the principle of sustainable development. Finally, in this article, the author discusses the actual foundations of environmental, economic and social aspect of the idea of sustainable development in the system of neo-liberal global capitalism (imperialism, with specific reference to the ruling method of covert power-holders.

  3. Sustaining Nurse-Led Task-Shifting Strategies for Hypertension Control: A Concept Mapping Study to Inform Evidence-Based Practice.

    Science.gov (United States)

    Blackstone, Sarah; Iwelunmor, Juliet; Plange-Rhule, Jacob; Gyamfi, Joyce; Quakyi, Nana Kofi; Ntim, Micheal; Ogedegbe, Gbenga

    2017-10-01

    The use of task-shifting is an increasingly widespread delivery approach for health interventions targeting prevention, treatment, and control of hypertension in adults living in sub-Saharan Africa (SSA). Addressing a gap in the literature, this research examined the sustainability of an ongoing task-shifting strategy for hypertension (TASSH) from the perspectives of community health nurses (CHNs) implementing the program. We used concept-mapping, a mixed-methods participatory approach to understand CHNs' perceptions of barriers and enablers to sustaining a task-shifting program. Participants responded to focal prompts, eliciting statements regarding perceived barriers and enablers to sustaining TASSH, and then rated these ideas based on importance to the research questions and feasibility to address. Twenty-eight community health nurses (21 women, 7 men) from the Ashanti region of Ghana completed the concept-mapping process. Factors influencing sustainability were grouped into five categories: Limited Drug Supply, Financial Support, Provision of Primary Health Care, Personnel Training, and Patient-Provider Communication. The limited supply of antihypertensive medication was considered by CHNs as the most important item to address, while providing training for intervention personnel was considered most feasible to address. This study's findings highlight the importance of examining nurses' perceptions of factors likely to influence the sustainability of evidence-based, task-shifting interventions. Nurses' perceptions can guide the widespread uptake and dissemination of these interventions in resource-limited settings. © 2017 Sigma Theta Tau International.

  4. New concept of aging care architecture landscape design based on sustainable development

    Science.gov (United States)

    Xu, Ying

    2017-05-01

    As the aging problem becoming serious in China, Aging care is now one of the top issuer in front of all of us. Lots of private and public aging care architecture and facilities have been built. At present, we only pay attention to the architecture design and interior design scientific, ecological and sustainable design on aged care architecture landscape. Based on the social economy, population resources, mutual coordination and development of the environment, taking the elderly as the special group, this paper follows the principles of the sustainable development, conducts the comprehensive design planning of aged care landscape architecture and makes a deeper understanding and exploration through changing the form of architectural space, ecological landscape planting, new materials and technology, ecological energy utilization.

  5. Sustainable transformation

    DEFF Research Database (Denmark)

    Andersen, Nicolai Bo

    This paper is about sustainable transformation with a particular focus on listed buildings. It is based on the notion that sustainability is not just a question of energy conditions, but also about the building being robust. Robust architecture means that the building can be maintained and rebuilt...... theoretical lenses. It is proposed that three parameters concerning the ꞌtransformabilityꞌ of the building can contribute to a more nuanced understanding of sustainable transformation: technical aspects, programmatic requirements and narrative value. It is proposed that the concept of ꞌsustainable...

  6. Anthropophagy: a singular concept to understand Brazilian culture and psychology as specific knowledge.

    Science.gov (United States)

    Ferreira, Arthur Arruda Leal

    2015-11-01

    The aim of this work is to present the singularity of the concept of anthropophagy in Brazilian culture. This article examines its use in the Modernist Movement of the 1920s and explores the possibilities it creates for thinking about Brazilian culture in nonidentitarian terms. We then use the concept of anthropophagy in a broader, practical sense to understand psychology as a kind of anthropophagical knowledge. We do so because in many ways the discipline of psychology is similar to Brazilian culture in its plurality and complexity. (c) 2015 APA, all rights reserved).

  7. The Concept of Directly Connected Impervious Areas and Its Implication on Sustainable Development in Urban Catchments

    Science.gov (United States)

    Seo, Yongwon; Hwang, Junsik; Choi, Hyun Il

    2017-04-01

    The concept of directly connected impervious area (DCIA) or efficient impervious areas (EIA) refers to a subset of impervious cover, which is directly connected to a drainage system or a water body via continuous impervious surfaces. The concept of DCIA is important in that it is regarded as a better predictor of stream ecosystem health than the total impervious area (TIA). DCIA is a key concept for a better assessment of green infrastructures introduced in urban catchments. Green infrastructure can help restore water cycle; it improves water quality, manages stormwater, provides recreational environment even at lower cost compared to conventional alternatives. In this study, we evaluated several methods to obtain the DCIA based on a GIS database and showed the importance of the accurate measurement of DCIA in terms of resulting hydrographs. We also evaluated several potential green infrastructure scenarios and showed how the spatial planning of green infrastruesture affects the shape of hydrographs and reduction of peak flows. These results imply that well-planned green infrastructure can be introduced to urban catchments for flood risk managements and quantitative assessment of spatial distribution of DCIA is crucial for sustainable development in urban environment.

  8. The influence of teachers' conceptions on their students' learning: children's understanding of sheet music.

    Science.gov (United States)

    López-Íñiguez, Guadalupe; Pozo, Juan Ignacio

    2014-06-01

    Despite increasing interest in teachers' and students' conceptions of learning and teaching, and how they influence their practice, there are few studies testing the influence of teachers' conceptions on their students' learning. This study tests how teaching conception (TC; with a distinction between direct and constructive) influences students' representations regarding sheet music. Sixty students (8-12 years old) from music conservatories: 30 of them took lessons with teachers with a constructive TC and another 30 with teachers shown to have a direct TC. Children were given a musical comprehension task in which they were asked to select and rank the contents they needed to learn. These contents had different levels of processing and complexity: symbolic, analytical, and referential. Three factorial ANOVAs, two-one-way ANOVAs, and four 2 × 3 repeated-measures ANOVAs were used to analyse the effects of and the interaction between the independent variables TC and class, both for/on total cards selected, their ranking, and each sub-category (the three processing levels). ANOVAs on the selection and ranking of these contents showed that teachers' conceptions seem to mediate significantly in the way the students understand the music. Students from constructive teachers have more complex and deep understanding of music. They select more elements for learning scores than those from traditional teachers. Teaching conception also influences the way in which children rank those elements. No difference exists between the way 8- and 12-year-olds learn scores. Children's understanding of the scores is more complex than assumed in other studies. © 2013 The British Psychological Society.

  9. Understanding the concept of resolving power in the Fabry-Perot interferometer using a digital simulation

    International Nuclear Information System (INIS)

    Juvells, I; Carnicer, A; Ferre-Borrull, J; MartIn-Badosa, E; Montes-Usategui, M

    2006-01-01

    The resolution concept in connection with the Fabry-Perot interferometer is difficult to understand for undergraduate students enrolled in physical optics courses. The resolution criterion proposed in textbooks for distinguishing equal intensity maxima and the deduction of the resolving power equation is formal and non-intuitive. In this paper, we study the practical meaning of the resolution criterion and resolution power using a computer simulation of a Fabry-Perot interferometer. The light source in the program has two monochromatic components, the wavelength difference being tunable by the user. The student can also adjust other physical parameters so as to obtain different simulation results. By analysing the images and graphics of the simulation, the resolving power concept becomes intuitive and understandable

  10. Investigation of student use of Web-based tutorial materials and understanding of chemistry concepts

    Science.gov (United States)

    Donovan, William Joseph

    The purpose of this study was to investigate students' use of Web-based tutorial materials in general chemistry and these students' understanding of chemistry concepts. The Visualization and Problem Solving Web Site includes tutorial materials for several visual chemistry topics such as VSEPR and coordination chemistry. Students generally valued the web site because of the representations and visualizations it provided, the materials and information available on the web site, and because they felt that they needed help with chemistry. Many students who did not use the web site felt that they did not need help with chemistry and thus did not need this additional source of help. Both web site users and nonusers were generally positive about using the web to learn chemistry. Motivation was also a factor in student decisions to use or not use the materials on the web. To gauge students' understanding of chemistry concepts, students were asked questions about coordination chemistry and drew concept maps during the interviews. Web site users made more incorrect statements during the discussion of coordination chemistry questions, but the student concept maps did not show a great difference in terms of percentages of correct and incorrect links.

  11. Moral distress: a comparative analysis of theoretical understandings and inter-related concepts.

    Science.gov (United States)

    Lützén, Kim; Kvist, Beatrice Ewalds

    2012-03-01

    Research on ethical dilemmas in health care has become increasingly salient during the last two decades resulting in confusion about the concept of moral distress. The aim of the present paper is to provide an overview and a comparative analysis of the theoretical understandings of moral distress and related concepts. The focus is on five concepts: moral distress, moral stress, stress of conscience, moral sensitivity and ethical climate. It is suggested that moral distress connects mainly to a psychological perspective; stress of conscience more to a theological-philosophical standpoint; and moral stress mostly to a physiological perspective. Further analysis indicates that these thoughts can be linked to the concepts of moral sensitivity and ethical climate through a relationship to moral agency. Moral agency comprises a moral awareness of moral problems and moral responsibility for others. It is suggested that moral distress may serve as a positive catalyst in exercising moral agency. An interdisciplinary approach in research and practice broadens our understanding of moral distress and its impact on health care personnel and patient care.

  12. SURF: Taking Sustainable Remediation from Concept to Standard Operating Procedure (Invited)

    Science.gov (United States)

    Smith, L. M.; Wice, R. B.; Torrens, J.

    2013-12-01

    , encouraging the incorporation of sustainability concepts into environmental science and engineering in undergraduate curricula and graduate research, and student participation at professional conferences. This presentation will provide an overview of the evolution of GSR to-date and a history of SURF's technical and outreach work. Examples will be provided--using both qualitative and quantitative metrics--that document and support the benefits of GSR.

  13. GREEN HOTELS - A CONCEPT THAT SUSTAINS A DURABLE DEVELOPMENT FOR TOURISM

    Directory of Open Access Journals (Sweden)

    PATRICHI IOANA CRISTIANA

    2013-02-01

    Full Text Available International tourism has evolved over the years, adapting to the changes that have occurred both in terms ofthe environment, but also in terms of societal demands. Thus, applying the principles of sustainable development hasbecome a priority not only for hotelier, but for each of accommodation owners, of any kind. Those types of investmentshave the role to protect the natural environment and some financial savings as a result from implementing newtechnologies. Globally there are already some successful examples that can become landmarks for those who areinterested in this aspect. This paper aims to analyze a new concept, that of "green hotels" and analyze some of thesuccessful examples, the conclusions being made available to those who are interested in adapting to whatever is newand efficient in this area.

  14. Phenomenographic study of basic science understanding-senior medical students' conceptions of fatigue.

    Science.gov (United States)

    Wilhelmsson, Niklas; Dahlgren, Lars Owe; Hult, Håkan; Wirell, Staffan; Ledin, Torbjörn; Josephson, Anna

    2013-01-01

    Helping students learn to apply their newly learned basic science knowledge to clinical situations is a long-standing challenge for medical educators. This study aims to describe how medical students' knowledge of the basic sciences is construed toward the end of their medical curriculum, focusing on how senior medical students explain the physiology of a given scenario. Methods A group of final-year medical students from two universities was investigated. Interviews were performed and phenomenographic analysis was used to interpret students' understanding of the physiology underlying the onset of fatigue in an individual on an exercise bicycle. Three categories of description depict the qualitatively different ways the students conceptualized fatigue. A first category depicts well integrated physiological and bio-chemical knowledge characterized by equilibrium and causality. The second category contains conceptions of finite amount of substrate and juxtaposition of physiological concepts that are not fully integrated. The third category exhibits a fragmented understanding of disparate sections of knowledge without integration of basic science and clinical knowledge. Distinctive conceptions of fatigue based with varying completeness of students' understanding characterized the three identified categories. The students' conceptions of fatigue were based on varying understanding of how organ systems relate and of the thresholds that determine physiological processes. Medical instruction should focus on making governing steps in biological processes clear and providing opportunity for causal explanations of clinical scenarios containing bio-chemical as well as clinical knowledge. This augments earlier findings by adding descriptions in terms of the subject matter studied about how basic science is applied by students in clinical settings.

  15. An ecological public health approach to understanding the relationships between sustainable urban environments, public health and social equity.

    Science.gov (United States)

    Bentley, Michael

    2014-09-01

    The environmental determinants of public health and social equity present many challenges to a sustainable urbanism-climate change, water shortages and oil dependency to name a few. There are many pathways from urban environments to human health. Numerous links have been described but some underlying mechanisms behind these relationships are less understood. Combining theory and methods is a way of understanding and explaining how the underlying structures of urban environments relate to public health and social equity. This paper proposes a model for an ecological public health, which can be used to explore these relationships. Four principles of an ecological public health-conviviality, equity, sustainability and global responsibility-are used to derive theoretical concepts that can inform ecological public health thinking, which, among other things, provides a way of exploring the underlying mechanisms that link urban environments to public health and social equity. Theories of more-than-human agency inform ways of living together (conviviality) in urban areas. Political ecology links the equity concerns about environmental and social justice. Resilience thinking offers a better way of coming to grips with sustainability. Integrating ecological ethics into public health considers the global consequences of local urban living and thus attends to global responsibility. This way of looking at the relationships between urban environments, public health and social equity answers the call to craft an ecological public health for the twenty-first century by re-imagining public health in a way that acknowledges humans as part of the ecosystem, not separate from it, though not central to it. © The Author (2013). Published by Oxford University Press. All rights reserved. For Permissions, please email: journals.permissions@oup.com.

  16. Dienes AEM as an alternative mathematics teaching aid to enhance Indonesian students’ understanding of algebra concept

    Science.gov (United States)

    Soro, S.; Maarif, S.; Kurniawan, Y.; Raditya, A.

    2018-01-01

    The aim of this study is to find out the effect of Dienes AEM (Algebra Experience Materials) on the ability of understanding concept of algebra on the senior high school student in Indonesia. This research is an experimental research with subject of all high school students in Indonesia. The samples taken were high school students in three provinces namely DKI Jakarta Province, West Java Province and Banten Province. From each province was taken senior high school namely SMA N 9 Bekasi West Java, SMA N 94 Jakarta and SMA N 5 Tangerang, Banten. The number of samples in this study was 114 high school students of tenth grade as experimental class and 115 high school students of tenth grade as control class. Learning algebra concept is needed in learning mathematics, besides it is needed especially to educate students to be able to think logically, systematically, critically, analytically, creatively, and cooperation. Therefore in this research will be developed an effective algebra learning by using Dienes AEM. The result of this research is that there is a significant influence on the students’ concept comprehension ability taught by using Dienes AEM learning as an alternative to instill the concept of algebra compared to the students taught by conventional learning. Besides, the students’ learning motivation increases because students can construct the concept of algebra with props.

  17. Approaching the Processes in the Generator Circuit Breaker at Disconnection through Sustainability Concepts

    Directory of Open Access Journals (Sweden)

    Carmen A. Bulucea

    2013-03-01

    Full Text Available Nowadays, the electric connection circuits of power plants (based on fossil fuels as well as renewable sources entail generator circuit-breakers (GCBs at the generator terminals, since the presence of that electric equipment offers many advantages related to the sustainability of a power plant. In an alternating current (a.c. circuit the interruption of a short circuit is performed by the circuit-breaker at the natural passing through zero of the short-circuit current. During the current interruption, an electric arc is generated between the opened contacts of the circuit-breaker. This arc must be cooled and extinguished in a controlled way. Since the synchronous generator stator can flow via highly asymmetrical short-circuit currents, the phenomena which occur in the case of short-circuit currents interruption determine the main stresses of the generator circuit-breaker; the current interruption requirements of a GCB are significantly higher than for the distribution network circuit breakers. For shedding light on the proper moment when the generator circuit-breaker must operate, using the space phasor of the short-circuit currents, the time expression to the first zero passing of the short-circuit current is determined. Here, the manner is investigated in which various factors influence the delay of the zero passing of the short-circuit current. It is shown that the delay time is influenced by the synchronous machine parameters and by the load conditions which precede the short-circuit. Numerical simulations were conducted of the asymmetrical currents in the case of the sudden three-phase short circuit at the terminals of synchronous generators. Further in this study it is emphasized that although the phenomena produced in the electric arc at the terminals of the circuit-breaker are complicated and not completely explained, the concept of exergy is useful in understanding the physical phenomena. The article points out that just after the short

  18. Novel Concept of an Installation for Sustainable Thermal Utilization of Sewage Sludge

    Directory of Open Access Journals (Sweden)

    Wilhelm Jan Tic

    2018-03-01

    Full Text Available This study proposes an innovative installation concept for the sustainable utilization of sewage sludge. The aim of the study is to prove that existing devices and technologies allow construction of such an installation by integration of a dryer, torrefaction reactor and gasifier with engine, thus maximizing recovery of the waste heat by the installation. This study also presents the results of drying tests, performed at a commercial scale paddle dryer as well as detailed analysis of the torrefaction process of dried sewage sludge. Both tests aim to identify potential problems that could occur during the operation. The scarce literature studies published so far on the torrefaction of sewage sludge presents results from batch reactors, thus giving very limited data of the composition of the torgas. This study aims to cover that gap by presenting results from the torrefaction of sewage sludge in a continuously working, laboratory scale, isothermal rotary reactor. The study confirmed the feasibility of a self-sustaining installation of thermal utilization of sewage sludge using low quality heat. Performed study pointed out the most favorable way to use limited amounts of high temperature heat. Plasma gasification of the torrefied sewage sludge has been identified that requires further studies.

  19. Structuring Ethical Interpretations of the Sustainable Development Goals—Concepts, Implications and Progress

    Directory of Open Access Journals (Sweden)

    Martina Keitsch

    2018-03-01

    Full Text Available The Sustainable Development Goals (SDGs, like the sustainable development (SD concept itself, are open to multifaceted interpretations, and the same is true for their ethical implications. While SDG values are widely accepted as universal, the ethical structure of the SDGs is complex, with differing interpretations and ideas, e.g., on how to regard and value nature. This article is a conceptual attempt to clarify and structure ethical interpretations based on an environmental ethics framework consisting of two branches: anthropocentrism and biocentrism. The aim is to provide an overview of SDG positions and locate them in the wider field of environmental ethics, addressing the human–nature relationship as a recurring topic in the SDGs. Section 1 of this article presents environmental ethics and briefly discusses anthropocentrism and biocentrism. Section 2 outlines ethical similarities of SD and the SDGs and locates representative SDG interpretations within the environmental ethics framework. Section 3 summarizes findings and suggests a possibility of integrating biocentrism and anthropocentrism with regard to the further interpretation and discussion of SDG ethics. Insights from this article will aid researchers in adopting a better overview on ethical positions in the SDG debate.

  20. Ecoeconomy and sustainable development as principal concepts of a serious proposal for Perú

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    Jesús H. Córdova

    2014-06-01

    Full Text Available The forcefulness of the facts has shown an unquestionable truth: the life on Earth is sustained by a limited quantity of energy that is produced by organisms like the green plants. It is urgent to put into practice measures that assure the maintenance of at least such a quantity of energy. The growing deforestation rate and contamination (pollution, as by-products of the “modernity”, allows us to watch the seriously committed humanity’s future, not being necessary to wait to the generation of our children to appreciate their negative effects. In the beginning of the XXI century we already live them and inclusive we can even quantify them. It will be necessary to decide what to make in order to avoid one of the biggest ecological disasters: the asphyxia of the planet. The only formulas that can to avoid this outcome lie within the concept of Eco-Development or Sustainable Development, inspiring in the most revolutionary ideas in State philosophy—Eco-Economy. Here we offer some fundamental precepts on which Ecoeconomy is based, and we point out the dangers of not acting quickly enough according to their advice in countries that possess an enormous magnitude of biological diversity as the Peru (which is one of the top ten recognized worldwide. For Sustainable Development purposes, being megadiverse condition in a world of globalized markets amounts to an enormous strength, that can generate —provided there is a political will— an inexhaustible source of potentialities and opportunities, which could enable the country to reach significant and growing levels of benefits in the short, medium and long term.

  1. Students’ Understanding of the Concept of Democracy and Implications for Teacher Education in Social Studies

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    Nora Elise Hesby Mathé

    2016-04-01

    be actively encouraged and maintained also in successful democracies. Little is known, however, about how students understand and explain democracy as a subject-specific concept. Such knowledge may be valuable for social studies teachers and teacher educators to fulfil the purpose of the social studies curriculum. The present article investigates 16-year-old students’ understanding of the concept of democracy. In social studies, the concept of democracy is essential not only for disciplinary understanding and discourse, but also for students’ out-of-school democratic participation. To investigate students’ understanding of this concept, semi-structured group interviews were conducted with a total of 23 students at three different Norwegian upper secondary schools. A central finding is that students primarily expressed a liberal understanding of democracy focusing on voting in elections as the main political activity. Students also demonstrated more or less limited or elaborate understanding. In addition to presenting and discussing students’ understandings of the concept of democracy, this article considers implications for teacher education in social studies. One implication is that teacher educators need to engage actively in discussing and defining core concepts with their students. This is related to supporting student teachers’ professional development and in turn developing adolescents’ opportunities for democratic participation. Such a dual focus can provide a knowledge base to help student teachers in their professional development in their first years as practicing teachers.Keywords: democracy, concepts, understanding, teacher education, social studies, democratic theory

  2. Sustainability and vulnerability: Understanding the anomaly from disaster perspectives. Case study: Glagaharjo Village in Mount Merapi

    Science.gov (United States)

    Depari, C. D. A.

    2017-06-01

    In its concern for human safety, the Government’s policy to relocate those living in disaster prone areas is twofold: it is perceptibly profound yet socially cataclysmic. This anomaly, created by the contradiction between the need for sustainability and the fact of vulnerability, could be found in the case of Mount Merapi. Communities living in the hazardous zone of Merapi, particularly those in Glagaharjo Village, are acknowledged for their persistent rejection of relocation programs despite their high exposure to the catastrophic impacts of eruptions. To mitigate the impacts, a safe and conducive dwelling place which considers the characteristics of these affected communities must be encouraged. This research adopts a consensus method towards responses obtained through a Likert scale-questionnaire and measured with a statistical program. Prior this process, theoretical reviews toward the concept of place attachment, place dependence and place identity was established in order to determine the research variables for the questionnaire.

  3. Concept for Sustainable Dose Reduction in Operating BWRs and PWRs with FSD (Full System decontamination)

    International Nuclear Information System (INIS)

    Sempere Belda, L.; Stiepani, C.; Topf, C.

    2011-01-01

    Nuclear power plants experience an increase in dose rates during operation due to the build-up of the activity inventory. The activity build-up is influenced by the construction materials, past and present water chemistries, and the individual operating history of the plant. Depending on these factors the dose levels in an operating plant may reach a point in which concrete actions to reduce the overall radiation exposure become necessary. AREVA has developed the Concept for Sustainable Dose Reduction in Operating BWRs and PWRs. This is a program of joint corrective measures to minimize dose levels and keep them low for continued operation. It can be applied in plants from all constructors and designs. The concept is put into practice through the coordinated application of proven technologies, including: . Full System Decontamination to minimize the activity inventory . The formation of new, very stable protective oxides on the system surfaces including injection of depleted zinc . Introduction of advanced water chemistry for maintaining the low dose levels achieved during ongoing operation The implementation of this program is particularly interesting for plants with a long operation history, especially when considering life extension. A description of the activities involved is provided, including an approximate timeline for the implementation from the initial planning stages until completion.

  4. Children's conceptions of physical events: explicit and tacit understanding of horizontal motion.

    Science.gov (United States)

    Howe, Christine; Taylor Tavares, Joana; Devine, Amy

    2014-06-01

    The conceptual understanding that children display when predicting physical events has been shown to be inferior to the understanding they display when recognizing whether events proceed naturally. This has often been attributed to differences between the explicit engagement with conceptual knowledge required for prediction and the tacit engagement that suffices for recognition, and contrasting theories have been formulated to characterize the differences. Focusing on a theory that emphasizes omission at the explicit level of conceptual elements that are tacitly understood, the paper reports two studies that attempt clarification. The studies are concerned with 6- to 10-year-old children's understanding of, respectively, the direction (141 children) and speed (132 children) of motion in a horizontal direction. Using computer-presented billiards scenarios, the children predicted how balls would move (prediction task) and judged whether or not simulated motion was correct (recognition task). Results indicate that the conceptions underpinning prediction are sometimes interpretable as partial versions of the conceptions underpinning recognition, as the omission hypothesis would imply. However, there are also qualitative differences, which suggest partial dissociation between explicit and tacit understanding. It is suggested that a theoretical perspective that acknowledges this dissociation would provide the optimal framework for future research. © 2013 The British Psychological Society.

  5. University students’ understanding of the electromotive force concept in the context of electromagnetic induction

    International Nuclear Information System (INIS)

    Zuza, Kristina; Guisasola, Jenaro; De Cock, Mieke; Bollen, Laurens; Van Kampen, Paul

    2016-01-01

    In this work, we present research on university students’ understanding of the concept of electromotive force (emf). The work presented here is a continuation of previous research by Garzón et al (2014 Am. J. Phys. 82 72–6) in which university students’ understanding of emf in the contexts of transient current and direct current circuits was analyzed. In the work we present here the investigation focuses on electromagnetic induction phenomena. Three open-ended questions from a broader questionnaire were analyzed in depth. We used phenomenography to define categories and detect lines of reasoning and difficulties in conceptual understanding. Very few students showed a good understanding of the emf concept in electromagnetic induction circuits or an ability to distinguish it from potential difference. Although the prevalences of the responses in the different categories are different, we find that the difficulties are the same in the three universities. Standard instruction does not allow most students to analyze unfamiliar contexts where the answer requires a systemic explanatory model. (paper)

  6. The understanding of the concept of business in terms of the concepts of GAME/SPORT with the example of business English idioms

    Directory of Open Access Journals (Sweden)

    Milošević Ivan

    2016-01-01

    Full Text Available This paper focuses on the potential understanding of the concept of BUSINESS in terms of the concepts of GAME and SPORT with the examples of Business English idioms (idiomatic expressions. Namely, in the light of the cognitive linguistics, meaning is considered to be not only a linguistic phenomenon, but a conceptual phenomenon as well. Such vantage point enables a lexico-semantic interpretation of linguistic units from a conceptual perspective, which includes the forming of correspondences between two concepts, with one concept being understood in terms of the other. The analysis includes 24 Business English idioms which stem from the conceptual domain of GAME/SPORT and is aimed at establishing the conceptual mapping (primarily via a cognitive mechanism known as the conceptual metaphor between the above stated source and the target domains, which prove a potential understanding of the concept of BUSINESS on the basis of the concepts of SPORT and GAME.

  7. Hotel architecture from the perspective of sustainability and space hospitality : a study on the application of the concepts of sustainability and hospitality space in hotel projects

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    Josildete Pereira Oliveira

    2016-03-01

    Full Text Available This present study aims to discuss the concept of both sustainability and hospitality into the context of city contemporary architecture which, in a certain way had been reinterpreted or asked in what is concerned to the concept of environmental sustainability. In this sense, the main goal of the research was to analyze two hotel projects in Santa Catarina, Brazil, been one of them configured as a small sized one and the other as a big hotel, where all the mentioned conditions had been manifested in a tight way and even had not been systematized into one of the hotel architecture samples, as a reference of sustainable and hospitable architecture. The methodology characterized by an initial bibliographic study, as well as documentary study, followed by a field research characterized by an intensive direct observation, as well as a group and systematic one, also considered both observation and questionnaires application (Marconi & Lakatos, 2006 and it tried to rescue the history of hotel architecture in order to identify environmental sustainability contents, as well as hospitality ones, concerned to the constructed spaces, so that it would be possible, in a following moment, to analyze the hotel samples selected, which do manifest all the mentioned conditions. It was realized that considering its realities and sizes, both studied hotels do count with actions and elements that may be considered sustainable, as well as friendly environmental actions, what, doubtless, do provide hospitality in a certain way. Similarly, both hotels still have potentialities to be developed.

  8. The Effects of Hands-On Learning Stations on Building American Elementary Teachers' Understanding about Earth and Space Science Concepts

    Science.gov (United States)

    Bulunuz, Nermin; Jarrett, Olga S.

    2010-01-01

    Research on conceptual change indicates that not only children, but also teachers have incomplete understanding or misconceptions on science concepts. This mixed methods study was concerned with in-service teachers' understanding of four earth and space science concepts taught in elementary school: reason for seasons, phases of the moon, rock…

  9. The history of wealth concept and ways to achieve it for sustainable development

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    O. A. Kalchenko

    2016-01-01

    Full Text Available The evolution of well-known philosophers and economists views on wealth is considered: Voltaire, Adam Smith, JeanJacques Rousseau, Karl Marx, John Stuart Mill, Milton Friedman, John Maynard Keynes, Joseph Schumpeter, Georg von Wallwitz and others. Economics was initially studying ways and means of achieving wealth. The essence of wealth has changed dramatically in people's minds after the first and the second industrial revolutions. The world today is on the verge of the third industrial revolution (according to Jeremy Rifkin, or, as it is called by many scientists, the new tenor of technology. In the history of any civilization comes the moment of a radical direction change for new prospects or endangered. Not all civilizations were able to transform in time. However, in the past, the effects of civilizations collapse were limited in time, space, and never addressed the species. Currently, the high probability of temperature and planet geochemistry changes as a result of climate change can lead to mass extinction of animals, plants, and people. Humanity has the ability to transit into a stable post-carbon era in the middle of the century and to prevent catastrophic climate change. Currently, sustainable development is the mechanism used to achieve the ultimate goal of any country, enterprise and human development, which is wealth. Under controlled sustainable development we understand the system unity of not only economic, social, environmental, but also resource, technological, institutional activities, as well as a permanent interaction between development and economic safety.

  10. Instructional games: Scientific language use, concept understanding, and attitudinal development of middle school learners

    Science.gov (United States)

    Mongillo, Geraldine

    The purpose of this qualitative study was to discover the influence of instructional games on middle school learners' use of scientific language, concept understanding, and attitude toward learning science. The rationale for this study stemmed from the lack of research concerning the value of play as an instructional strategy for older learners. Specifically, the study focused on the ways in which 6 average ability 7th grade students demonstrated scientific language and concept use during gameplay. The data were collected for this 6-week study in a southern New Jersey suburban middle school and included audio recordings of the 5 games observed in class, written documents (e.g., student created game questions, self-evaluation forms, pre- and post-assessments, and the final quiz) interviews, and researcher field notes. Data were coded and interpreted borrowing from the framework for scientific literacy developed by Bybee (1997). Based on the findings, the framework was modified to reflect the level of scientific understanding demonstrated by the participants and categorized as: Unacquainted, Nominal, Functional, and Conceptual. Major findings suggested that the participants predominantly achieved the Functional level of scientific literacy (i.e., the ability to adequately and appropriately use scientific language in both written and oral discourse) during games. Further, it was discovered that the participants achieved the Conceptual level of scientific literacy during gameplay. Through games participants were afforded the opportunity to use common, everyday language to explore concepts, promoted through peer collaboration. In games the participants used common language to build understandings that exceeded Nominal or token use of the technical vocabulary and concepts. Additionally, the participants reported through interviews and self-evaluation forms that their attitude (patterns included: Motivation, Interest, Fun, Relief from Boredom, and an Alternate Learning

  11. [The concept of temperament and its contribution to the understanding of the bipolar spectrum].

    Science.gov (United States)

    Koufaki, I; Polizoidou, V; Fountoulakis, K N

    2017-01-01

    to more complex pictures and might predict poor responseto treatment, violent or suicidal behavior and high comorbidity. Unipolar disorder diagnosis is oftenchanged due to the fact that a manic or mixed episode can occur after several years of treatment failure.In these cases the evaluation of temperament can prove to be effective in distinguishing betweenunipolar and bipolar depression and thus favoring treatment planning. In addition, temperament assessmentchanges the definition of bipolarity by supporting the concept of "bipolar spectrum". This isa factor that can lead to a rise in prevalence of bipolar cases. Furthermore, the evaluation of temperamenthas shifted our understanding of bipolarity towards the concept of the 'bipolar spectrum'. It hasalso led to an increase in the prevalence of bipolar disorder cases, notably bipolar II, and a decrease in unipolar cases. Finally, incorporating the concept of temperament in our understanding of bipolardisorder constitutes a challenging issue, which can lead to better treatment and outcome of patients.

  12. Chronotope disruption as a sensitizing concept for understanding chronic illness narratives.

    Science.gov (United States)

    Gomersall, Tim; Madill, Anna

    2015-04-01

    This article aims to elaborate chronotope disruption--a changed relation to time and space--as a sensitizing concept for understanding chronic illness narratives. Sixteen men and 16 women with Type 2 diabetes were purposefully sampled. Each was interviewed about his or her experience of diabetes self-management using the biographical-narrative interview method. Transcripts were inspected for key moments defined as emotionally laden stories relevant to the purpose of the research. We present dialogically inflected discursive analysis of exemplar extracts. The analysis demonstrates how the concept of chronotope disruption helps identify, and understand, important aspects of patients' chronic illness narratives. First, we investigate how medical advice can conflict with embodied experience and how progressive bodily deterioration can provoke a reevaluation of past illness (self-mis)management. Second, the increasing temporal and spatial intrusion of chronic illness into participants' lives is examined. Finally, we focus on the masquerade of health as an attempt to manage, hide, or deny that one is physically challenged. Chronotope disruption offers a useful sensitizing concept for approaching chronic illness narratives and around which to organize analytical insights and to develop practice. Chronotope analysis fills an important gap in the science through compensating current health sciences' focus on rationality, cognition, and prospective time (prediction) with a patient-oriented focus on emotionality, embodiment, and retrospective time (nostalgia). Chronotope disruption could be used to develop practice by gaining empathic understanding of patients' life-worlds and provides a tool to examine how new technologies change the way in which the chronically ill have "being" in the world. (c) 2015 APA, all rights reserved).

  13. Chronotope Disruption as a Sensitizing Concept for Understanding Chronic Illness Narratives

    Science.gov (United States)

    2014-01-01

    Objectives: This article aims to elaborate chronotope disruption —a changed relation to time and space— as a sensitizing concept for understanding chronic illness narratives. Methods: Sixteen men and 16 women with Type 2 diabetes were purposefully sampled. Each was interviewed about his or her experience of diabetes self-management using the biographical-narrative interview method. Transcripts were inspected for key moments defined as emotionally laden stories relevant to the purpose of the research. We present dialogically inflected discursive analysis of exemplar extracts. Results: The analysis demonstrates how the concept of chronotope disruption helps identify, and understand, important aspects of patients’ chronic illness narratives. First, we investigate how medical advice can conflict with embodied experience and how progressive bodily deterioration can provoke a reevaluation of past illness (self-mis)management. Second, the increasing temporal and spatial intrusion of chronic illness into participants’ lives is examined. Finally, we focus on the masquerade of health as an attempt to manage, hide, or deny that one is physically challenged. Conclusions: Chronotope disruption offers a useful sensitizing concept for approaching chronic illness narratives and around which to organize analytical insights and to develop practice. Chronotope analysis fills an important gap in the science through compensating current health sciences’ focus on rationality, cognition, and prospective time (prediction) with a patient-oriented focus on emotionality, embodiment, and retrospective time (nostalgia). Chronotope disruption could be used to develop practice by gaining empathic understanding of patients’ life-worlds and provides a tool to examine how new technologies change the way in which the chronically ill have “being” in the world. PMID:25197985

  14. Recirculation: A New Concept to Drive Innovation in Sustainable Product Design for Bio-Based Products.

    Science.gov (United States)

    Sherwood, James; Clark, James H; Farmer, Thomas J; Herrero-Davila, Lorenzo; Moity, Laurianne

    2016-12-29

    Bio-based products are made from renewable materials, offering a promising basis for the production of sustainable chemicals, materials, and more complex articles. However, biomass is not a limitless resource or one without environmental and social impacts. Therefore, while it is important to use biomass and grow a bio-based economy, displacing the unsustainable petroleum basis of energy and chemical production, any resource must be used effectively to reduce waste. Standards have been developed to support the bio-based product market in order to achieve this aim. However, the design of bio-based products has not received the same level of attention. Reported here are the first steps towards the development of a framework of understanding which connects product design to resource efficiency. Research and development scientists and engineers are encouraged to think beyond simple functionality and associate value to the potential of materials in their primary use and beyond.

  15. Dhat syndrome: Evolution of concept, current understanding, and need of an integrated approach

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    Sujita Kumar Kar

    2015-01-01

    Full Text Available Dhat syndrome has often been construed as a culture-bound sexual neurosis of the Indian subcontinent. Symptoms similar to that of Dhat syndrome has been described in other cultures across different time periods. The present paper looks at the evolution of the concept of Dhat syndrome in India. The review also takes an overview of the current understanding of this syndrome in terms of nosological status as a distinct entity and its "culture-bound" status. The narrative finally attempts to discuss the integrated approach for the treatment of this disorder.

  16. The Impact of Project-Based Learning on Improving Student Learning Outcomes of Sustainability Concepts in Transportation Engineering Courses

    Science.gov (United States)

    Fini, Elham H.; Awadallah, Faisal; Parast, Mahour M.; Abu-Lebdeh, Taher

    2018-01-01

    This paper describes an intervention to enhance students' learning by involving students in brainstorming activities about sustainability concepts and their implications in transportation engineering. The paper discusses the process of incorporating the intervention into a transportation course, as well as the impact of this intervention on…

  17. Smart Growth for a Sustainable Urban Environment - Concepts and Practice in US and China (CLASS PRESENTATION)

    Science.gov (United States)

    This is an invited seminar to a class of undergraduate and graduate students at DAAP of the University of Cincinnati. It provides students the concepts and trends in smart growth and sustainable urban development in U.S. and China. The materials are drawn from my research and m...

  18. Crop-Livestock-Forestry Integration in Brazil: a sustainable agriculture strategy based on the concepts of Green Economy Initiative

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    Julio Reis

    2016-04-01

    Full Text Available This article proposes to transform the current production model through the organization of an agricultural system based on the concepts of crop-livestock-forestry integration (ICLF. We used the guidelines and concepts related to the Green Economy Initiative (GEI, a proposal of the United Nations Environment Program (UNEP. Within this framework, the agricultural sector is identified as an important sector due to its strong connection with economic, social and environmental dimensions. We intend to demonstrate that the ICLF proposal is in line with aspects of sustainable agriculture, as proposed by GEI, and that it is an important strategy to increase production in a sustainable manner in Brazil. The adoption of GEI is a consistent strategy for the implementation of policies to promote sustainable development.

  19. Development Concept Of Urban Housing Renewal Based On Sustainable Tourism A Case Study Of Kampung Tambak Bayan Surabaya

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    Annisa Nur Ramadhani

    2017-06-01

    Full Text Available Urban housing renewal is part of urban renewal that aims to make the housing environment more functional and integrated. Urban renewal implementation is necessary through a sustainable development concept approach that include physical social economic and cultural consideration into account. While sustainable tourism can be one of the efforts to support the development of urban economy and maintain the sustainability of sustainable development. Kampungs or informal settlements in Indonesia are potential to be developed as tourism area because each kampung has unique characteristics cultures site ambiences and local wisdom. Although they have many potentials there are still many kampungs that have not developed optimally yet. Therefore this study aims to formulate the development concepts of urban housing renewal based on sustainable tourism using Kampung Tambak Bayan as a case study in order to improving the quality of kampung through tourism approach that can reduce the number of slums as well as improving local citizens prosperity in a sustainable way. The datas are collected through observation questionnaire and documentation. The results of several quantitative and qualitatively descriptive analyses show that efforts to upgrade Kampung Tambak Bayan as a tourism destination can be realized through quality enhancements of physical environment basic infrastructures build tourism facilities stakeholder cooperation the establishment of tourism organization and local community empowerment in order to support the actualization of kampungs tourism.

  20. Consumption governance toward more sustainable consumption

    NARCIS (Netherlands)

    Wahlen, S.; Dubuisson-Quellier, Sophie

    2018-01-01

    This article deliberates on strategies of consumption governance toward more sustainable consumption. We discuss theoretical concepts stemming from various social science perspectives to (1) promote more sustainable consumption, (2) compare strategies stemming from individualist understanding of

  1. Understanding God images and God concepts: Towards a pastoral hermeneutics of the God attachment experience

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    Victor Counted

    2015-03-01

    Full Text Available The author looks at the God image experience as an attachment relationship experience with God. Hence, arguing that the God image experience is borne originally out of a parent�child attachment contagion, in such a way that God is often represented in either secure or insecure attachment patterns. The article points out that insecure God images often develop head-to-head with God concepts in a believer�s emotional experience of God. On the other hand, the author describes God concepts as indicators of a religious faith and metaphorical standards for regulating insecure attachment patterns. The goals of this article, however, is to highlight the relationship between God images and God concepts, and to provide a hermeneutical process for interpreting and surviving the God image experience.Intradisciplinary and/or interdisciplinary implications: Given that most scholars within the discipline of Practical Theology discuss the subject of God images from cultural and theological perspectives, this article has discussed God images from an attachment perspective, which is a popular framework in psychology of religion. This is rare. The study is therefore interdisciplinary in this regards. The article further helps the reader to understand the intrapsychic process of the God image experience, and thus provides us with hermeneutical answers for dealing with the God image experience from methodologies grounded in Practical Theology and pastoral care.

  2. Understanding of the farmers privilege concept by smallholder farmers in South Africa

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    Noluthando C. Netnou-Nkoana

    2015-01-01

    Full Text Available Legislation on plant breeders’ rights – the Plant Breeders’ Rights Act, 1976 (Act No. 15 of 1976 – currently is being reviewed by the Department of Agriculture, Forestry and Fisheries. This legislation provides for farmers’ privilege, which is one of the exceptions to plant breeders’ rights. It allows farmers to save seed of protected varieties for their own use. Farmers’ privilege, and particularly its impact on smallholder farmers in developing countries, is a widely debated issue. During the public consultation process, several comments proposing amendments to the farmers’ privilege provision were received from various stakeholders. However, no comments were received from the smallholder farmers who may be directly impacted by this provision. This pilot study was undertaken to assess the understanding of the farmers’ privilege concept by smallholder farmers from the historically disadvantaged communities and their current practices with regard to seed saving. The results showed that the majority of the smallholder farmers were not aware of the existence of the legislation on plant breeders’ rights and therefore do not understand the farmers’ privilege concept and its implications. They also did not know whether the varieties they were using were protected by plant breeders’ rights or not. Little information has been published on the impact of plant breeders’ rights in South Africa in general. We hope that this study might inform policy decisions on matters related to plant breeders’ rights and the farmers’ privilege.

  3. A Chinese young adult non-scientist's epistemologies and her understandings of the concept of speed

    Science.gov (United States)

    Cao, Ying; Brizuela, Barbara M.

    2015-08-01

    Past research has investigated students' epistemologies while they were taking courses that required an integrated understanding of mathematical and scientific concepts. However, past studies have not investigated students who are not currently enrolled in such classes. Additionally, past studies have primarily focused on individuals who are native English speakers from Western cultures. In this paper, we aim to investigate whether Hammer and his colleagues' claims concerning learners' epistemologies could be extended to individuals who lack advanced mathematics and science training, have had different cultural and learning experiences, and have grown up speaking and learning in another language. To this end, we interviewed a participant with these characteristics about her understandings of the concept of speed. Our findings show that previous theoretical frameworks can be used to explain the epistemologies of the individual examined in this study. The case suggests that these theories may be relevant regardless of the learner's mathematics and science background, language, educational experience, and cultural background. In the future, more cases should be examined with learners from different academic backgrounds and cultures to further support this finding.

  4. EXAMINING THE STUDENTS’ UNDERSTANDING LEVEL TOWARDS THE CONCEPTS OF SPECIAL THEORY OF RELATIVITY

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    Özgür Özcan

    2017-06-01

    Full Text Available Special theory of relativity is one of the difficult subjects of physics to be understood by the students. The current research designed as a qualitative research aim to determine the pre-service physics teachers’ understanding level and the alternative conceptions about three core concepts of special theory of relativity, such as time dilatation, length contraction and reference frames. The data were collected through semi structured interviews and were analyzed by using content analysis. At the end of the analysis process the understanding level of the students was determined to be “complete understanding”, “incomplete understanding” and “misunderstanding”. In order to achieve this, the students’ conceptual frameworks based on the operational definitions made by the students were determined firstly. The findings obtained in this research indicate that high school teachers as well as university instructors should take special care with some points in the teaching of the subjects related with special theory of relativity. This research might be useful to other studies to be done in the future, especially for investigating the students’ mental models related to special theory of relativity.

  5. A Cross-Age Study of Students’ Understanding of Limit and Continuity Concepts

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    Ilhan Karatas

    2011-05-01

    Full Text Available Abstract The aim of this study is to reveal concept development and the way limit and continuity concepts are understood by students from different levels of education. For this purpose, a test comprising open-ended questions about verbal, algebraic and graphical representations of concepts was administered to students from different levels of education. When students’ understandings of limit and continuity concepts are compared, the pre-service teachers in their 3rd year of study were found much less successful than other students in algebraic, verbal and graphical representations of limit and continuity concepts. It may be recommended that when designing instructional activities verbal, graphical and algebraic representations should be prioritized to enhance the development of students’ interpretation skills of different representations of functions. Keywords: Mathematics Education. Limit and Continuity Concepts. Cross-Age Study A Compreensão dos Conceitos de Limite e Continuidade: um estudo desenvolvido com alunos em distintos momentos de um curso de formação inicial para professores Resumo O objetivo deste artigo é analisar como os conceitos de limite e continuidade são compreendidos por estudantes em diferentes momentos de formação. Para isso, foi aplicado a esses alunos um teste composto por questões abertas no qual foram privilegiadas as representações verbais, algébricas e geométricas (gráficas de funções. O estudo das compreensões manifestadas nos testes revela que os estudantes, futuros professores, em seu terceiro ano de formação, apresentam maiores problemas que os demais alunos quanto aos conceitos em questão. Disso decorre a recomendação de que, quando elaborando atividades instrucionais, representações verbais, visuais e geométricas (gráficas devem ser priorizadas de modo a viabilizar o desenvolvimento de estratégias interpretativas adequadas que permitam trabalhar com diferentes

  6. Challenging the Concept of Ethical Literacy within Education for Sustainable Development (ESD): Storytelling as a Method within Sustainability Didactics

    Science.gov (United States)

    Franck, Olof; Osbeck, Christina

    2018-01-01

    Ethical literacy seems to be used, within Education for Sustainable Development (ESD), in various ways, some more general and others morally specific, emphasising individuals' responsibility. The overarching aim of this paper is to present some prerequisites for the development of narrative methods that focus on the vision of a good society…

  7. Understanding Transitions Toward Sustainable Urban Water Management: Miami, Las Vegas, Los Angeles

    Science.gov (United States)

    Garcia, M. E.; Manago, K. F.; Treuer, G.; Deslatte, A.; Koebele, E.; Ernst, K.

    2016-12-01

    Cities in the United States face numerous threats to their long-term water supplies including preserving ecosystems, competing uses, and climate change. Yet, it is unclear why only some cities have transitioned toward more sustainable water management. These transitions include strategies such as water conservation, water supply portfolio diversification, long-term planning, and integrated resource management. While the circumstances that motivate or moderate transition may vary greatly across cities' physical and institutional contexts, identifying common factors associated with transition can help resource managers capitalize on windows of opportunity for change. To begin the process of identifying such factors, we ask two questions: 1) what combinations of conditions are associated with water management transitions?, and 2) what are the outcomes of these transitions? We examine three cases of utility-level water management in Miami, Las Vegas, and Los Angeles to create data-driven narratives detailing each city's transition. These narratives systematically synthesize multiple data sources to enable cross-case comparison and provide insights into how and why cities transition. Using the foundational concepts from the exposure-based theory of urban change, we focus our analysis on three broad categories of variables that influence urban water management transition: biophysical, political, and regulatory exposures. First, we compare these factors across time and across cities using metrics that standardize diverse data sources. Next, we incorporate qualitative factors that capture a city's unique conditions by integrating these metrics with salient contextual information. Then, through cross-city comparison, we identify factors associated with transition.

  8. A Kaleidoscope of Understanding: Pre-service Elementary Teachers' Knowledge of Climate Change Concepts and Impacts

    Science.gov (United States)

    Hayhoe, D.; Bullock, S.; Hayhoe, K.

    2010-12-01

    Teachers are at the forefront of efforts to increase climate literacy; however, even teachers’ understanding can contain significant misconceptions. Probes aimed at capturing these misconceptions have been used with pre-service teachers in several countries. Here, we report on a unique 59-item questionnaire useful as a pre-post diagnostic for teacher training. Topics include Earth’s climate system, long-range climatic changes, recent changes, various gases and types of radiation involved in the greenhouse effect, future impacts of climate change, and mitigation options This questionnaire is unique in three ways: 1. the topics include climate change concepts not usually probed, 2. the questions have a binary-choice format that avoided both the “positive statement bias” of agree-disagree questions and the superfluous distractors of multiple-choice tests, and 3. the questionnaire was piloted with pre-service elementary teachers in Toronto, one of the most multicultural cities in the world. The questionnaire items were written for the Ontario curriculum (K-10); however, they also address almost all of the principles identified in Climate Literacy: The Essential Principles of Climate Science. The questionnaire was completed by 89 volunteers from a pool of 280. Most had a substantial knowledge of climate change concepts, with 34 of the 59 questions being answered correctly by more than 60% of the subjects. The item discrimination of most questions was relatively low, however, and only a very few item pairs showed a significant correlation. This suggests that subjects’ knowledge consisted of a “kaleidoscope of understanding,” rather than a coherent picture. Significant misconceptions were also identified, with 18 of the 59 items being answered incorrectly by more than 60% of the subjects. Of these, 11 correspond to misconceptions previously noted, while 7 suggest new misconceptions not yet identified in studies done with students or teachers, such as the

  9. Scaffolded problem-solving, learning approaches and understanding of concepts in an introductory college physics class

    Science.gov (United States)

    Haack, Constance

    This study was an exploration of students' use of scaffolded problems as part of their homework in an introductory calculus-based physics class. The study included consideration of the possible relationship of students' meaningful and rote learning approaches. The sample was comprised of 48 students who had completed all study instruments. Of this number, 23 did homework assignments that included scaffolded problems that had been divided into multiple steps that simplify, highlight, and organize the knowledge associated with the problem solving process. The other 25 students did non-scaffolded homework assignments. The Mechanics Baseline Test, given at the beginning of the study, measured students' prior knowledge of physics concepts. The Learning Approach Questionnaire, also given at the beginning of the study, measured students' meaningful and rote approaches to learning. Student responses to 6 qualitative physics problems and their selection of concepts associated with 4 quantitative physics problems was a gauge of their understanding of physics concepts. These 10 problems were distributed between 2 classroom examinations given during the study. At the end of the study 4 students who had done scaffolded homework problems and 4 students who had done non-scaffolded homework problems participated in think aloud protocols. They verbalized their thoughts as they attempted to solve 2 physics problems. Characterizations of individual problem solving approaches emerged from the think aloud protocols. An analysis of statistical data showed that students who did scaffolded problems attained significantly greater understanding of physics concepts than students who did non-scaffolded assignments. There were no significant differences by learning approaches, and no significant interactions. This indicates that scaffolded homework problems may benefit students regardless of learning orientation. Think aloud protocols revealed patterns of difference between students who had

  10. Research and Teaching: Correlations between Students' Written Responses to Lecture-Tutorial Questions and Their Understandings of Key Astrophysics Concepts

    Science.gov (United States)

    Eckenrode, Jeffrey; Prather, Edward E.; Wallace, Colin S.

    2016-01-01

    This article reports on an investigation into the correlations between students' understandings of introductory astronomy concepts and the correctness and coherency of their written responses to targeted Lecture-Tutorial questions.

  11. Understanding key issues of sustainable wood production in the Pacific Northwest.

    Science.gov (United States)

    Robert L. Deal; Seth M. White

    2005-01-01

    Researchers involved with the Pacific Northwest (PNW) Research Station Sustainable Wood Production Initiative have outlined some of the barriers and opportunities for sustainable wood production in the region. Sustainable wood production is defined as the capacity of forests to produce wood, products, and services on a long-term basis and in the context of human...

  12. Teaching and Understanding the Concept of Critical Thinking Skills within Michigan Accredited Associate Degree Dental Hygiene Programs

    Science.gov (United States)

    Beistle, Kimberly S.

    2012-01-01

    This study explores dental hygiene faculty's perceptions regarding the issues surrounding the concept of critical thinking skills integration within Michigan accredited associate degree dental hygiene programs. The primary research goals are to determine faculty understanding of the concept of critical thinking, identify personal and departmental…

  13. [Understanding local concepts of equity to formulate public health policies in Burkina Faso].

    Science.gov (United States)

    Ridde, Valéry

    2006-01-01

    Equity is an essential health promotion concept and must be included at the heart of public health policy making. However, equity, which can also be referred to as social justice, is a polysemic and contextual term which definition must stem from the discourse and values of the society where the policies are implemented. Using a case study from Burkina Faso, we try to show that the non-acknowledgement of the local concept of social justice in the policy making process partly explains the resulting policies' relative failure to achieve social justice. Data collection methods vary (individual and group interviews, concept mapping, participant observation, document analyses) and there are qualitative and quantitative analyses. The four groups of actors who generally participate in the policy making process participated in the data collection. With no intention to generalise the results to the entire country, the results show that mass social mobilisation for justice is egalitarian in type. Health or social inequalities are understood by individuals as facts which we cannot act upon, while the inequalities to access care are qualified as unjust, and it is possible to intervene to reduce them if incentive measures to this effect are taken. We also observed a certain social difficulty to conceive sub-groups of population and fierce will to not destabilise social peace, which can be provoked when looking for justice for the impoverished sectors of the population. This research allows better understanding about the emic aspect of equity and seems to confirm the importance of taking into account local values, especially social justice, when determining public policy.

  14. Building Students’ Understanding of Quadratic Equation Concept Using Naïve Geometry

    Directory of Open Access Journals (Sweden)

    Achmad Dhany Fachrudin

    2014-07-01

    Full Text Available The purpose of this research is to know how Naïve Geometry method can support students’ understanding about the concept of solving quadratic equations. In this article we will discuss one activities of the four activities we developed. This activity focused on how students linking the Naïve Geometry method with the solving of the quadratic equation especially on how student bring geometric solution into algebraic form. This research was conducted in SMP Negeri 1 Palembang. Design research was chosen as method used in this research that have three main phases. The results of this research showed that manipulating and reshaping the rectangle into square could stimulate students to acquire the idea of solving quadratic equations using completing perfect square method. In the end of the meeting, students are also guided to reinvent the general formula to solve quadratic equations.

  15. The effect of Phet Simulation media for physics teacher candidate understanding on photoelectric effect concept

    Directory of Open Access Journals (Sweden)

    Supurwoko Supurwoko

    2017-02-01

    Full Text Available Indonesian new Curriculum for senior high school students required student-centered learning. One of the curriculum implementation constraint was the difficulty of providing learning media. PhET simulations media is one of the options that can help implementation of new curriculum on learning. However, the use of this media in Indonesia still needs to be studied comprehensively. The learning was conducted on students of physics education Study Program in sebelas maret university in 2013. The sample consisted of 62 students that was taking quantum physics course. The method that was used in the research was descriptive qualitative.  The method that was used in learning was demonstration’s method that used PhET media and accompanied by a question and answer and groups discussion. The data was collected using multiple choice test and interview through email. We found that any students still did not understand about photoelectric effect concept. They were confused when asked about the thick material and cross section of the targets as related with the regardless of electrons in the photoelectric effect event. Other than that, the concept of the waves as a particle and its relation with the kinetic energy of the electrons was not understood by most students.

  16. Motion sensors in mathematics teaching: learning tools for understanding general math concepts?

    Science.gov (United States)

    Urban-Woldron, Hildegard

    2015-05-01

    Incorporating technology tools into the mathematics classroom adds a new dimension to the teaching of mathematics concepts and establishes a whole new approach to mathematics learning. In particular, gathering data in a hands-on and real-time method helps classrooms coming alive. The focus of this paper is on bringing forward important mathematics concepts such as functions and rate of change with the motion detector. Findings from the author's studies suggest that the motion detector can be introduced from a very early age and used to enliven classes at any level. Using real-world data to present the main functions invites an experimental approach to mathematics and encourages students to engage actively in their learning. By emphasizing learning experiences with computer-based motion detectors and aiming to involve students in mathematical representations of real-world phenomena, six learning activities, which were developed in previous research studies, will be presented. Students use motion sensors to collect physical data that are graphed in real time and then manipulate and analyse them. Because data are presented in an immediately understandable graphical form, students are allowed to take an active role in their learning by constructing mathematical knowledge from observation of the physical world. By utilizing a predict-observe-explain format, students learn about slope, determining slope and distance vs. time graphs through motion-filled activities. Furthermore, exploring the meaning of slope, viewed as the rate of change, students acquire competencies for reading, understanding and interpreting kinematics graphs involving a multitude of mathematical representations. Consequently, the students are empowered to efficiently move among tabular, graphical and symbolic representation to analyse patterns and discover the relationships between different representations of motion. In fact, there is a need for further research to explore how mathematics teachers

  17. Understanding implications of consumer behavior for wildlife farming and sustainable wildlife trade.

    Science.gov (United States)

    Nuno, A; Blumenthal, J M; Austin, T J; Bothwell, J; Ebanks-Petrie, G; Godley, B J; Broderick, A C

    2018-04-01

    Unsustainable wildlife trade affects biodiversity and the livelihoods of communities dependent upon those resources. Wildlife farming has been proposed to promote sustainable trade, but characterizing markets and understanding consumer behavior remain neglected but essential steps in the design and evaluation of such operations. We used sea turtle trade in the Cayman Islands, where turtles have been farm raised for human consumption for almost 50 years, as a case study to explore consumer preferences toward wild-sourced (illegal) and farmed (legal) products and potential conservation implications. Combining methods innovatively (including indirect questioning and choice experiments), we conducted a nationwide trade assessment through in-person interviews from September to December 2014. Households were randomly selected using disproportionate stratified sampling, and responses were weighted based on district population size. We approached 597 individuals, of which 37 (6.2%) refused to participate. Although 30% of households had consumed turtle in the previous 12 months, the purchase and consumption of wild products was rare (e.g., 64-742 resident households consumed wild turtle meat [i.e., 0.3-3.5% of households] but represented a large threat to wild turtles in the area due to their reduced populations). Differences among groups of consumers were marked, as identified through choice experiments, and price and source of product played important roles in their decisions. Despite the long-term practice of farming turtles, 13.5% of consumers showed a strong preference for wild products, which demonstrates the limitations of wildlife farming as a single tool for sustainable wildlife trade. By using a combination of indirect questioning, choice experiments, and sales data to investigate demand for wildlife products, we obtained insights about consumer behavior that can be used to develop conservation-demand-focused initiatives. Lack of data from long-term social

  18. Integrating Classical with Emerging Concepts for Better Understanding of Salinity Stress Tolerance Mechanisms in Rice

    Directory of Open Access Journals (Sweden)

    Navdeep Kaur

    2017-07-01

    Full Text Available Rice is an important cereal crop responsible for world's food security. The sensitivity of rice plants toward a range of abiotic stresses is a prime challenge for its overall growth and productivity. Among these, salinity is a major stress which results in a significant loss of global rice yield annually. For finding straightforward and strict future solutions in order to assure the food security to growing world population, understanding of the various mechanisms responsible for salt stress tolerance in rice is of paramount importance. In classical studies, identification of salt tolerant cultivars and the genetic markers linked to salt tolerance and breeding approaches have been given emphasis. It further affirmed on the identification of various pathways regulating the complex process of salt stress adaptation. However, only limited success has been achieved in these approaches as salt tolerance is a complex process and is governed by multiple factors. Hence, for better understanding of salt tolerance mechanisms, a comprehensive approach involving physiological, biochemical and molecular studies is much warranted. Modern experimental and genetic resources have provided a momentum in this direction and have provided molecular insights into different salt stress responsive pathways at the signaling and regulatory level. The integrative knowledge of classical and modern research of the understanding of salt stress adaptive pathways can help the researchers for designing effective strategies to fight against salt stress. Hence, the present review is focused on the understanding of the salt stress tolerance mechanisms in rice through the consolidative knowledge of classical and modern concepts. It further highlights the emerging new trends of salt stress adaptive pathways in rice.

  19. Energy conservation in urban areas in the framework of a sustainable transportation concept

    Energy Technology Data Exchange (ETDEWEB)

    Shahin, M.

    2001-07-01

    study. In addition, two commercial software programs are used: (1) a computer-aided transport planning called 'VISUM' established at the PTV Systems Software and Constructing GmbH Karlsruhe-Germany, and (2) a computer-aided interactive system called 'DYNAMIS' established at the Institute for Transportation, Railways Construction and Operation of Hannover University, Hannover-Germany. Moreover and for the aim of assisting the developing countries to produce energy and emission models, the German-Swiss emissions model 'Handbuch der Emissionsfaktoren des Strassenverkehrs 1999' is studied, explained and examined. Also, a new approach was developed, within the framework of this study, 'Push-down and Push-up' with the aim of sustainable energy consumption in the transport sector. Finally, the application illustrates the technical, environmental, and economical benefits of the sustainable transport concept. (orig.) [German] Unsere Lebensqualitaet haengt in grossem Masse vom Verkehr ab. Verkehr ermoeglicht eine individuelle Freiheit und Unabhaengigkeit fuer den Transport von Personen und Guetern in modern entwickelten Wirtschaftssystemen. Allerdings treten durch den Verkehr auch eine Vielzahl von unerwnschten Nebenwirkungen auf. Der Verkehrssektor ist einer der groessten Energieverbraucher (hauptsaechlich fossiler Brennstoffe). Die entstehenden Emissionen fuehren sowohl zu negativen lokalen Beeintraechtigungen der Gesundheit wie auch zu einer Erhoehung der CO{sub 2}-Konzentrationen weltweit, die eine entscheidende Rolle fuer das Klima der Erde spielen. Zudem ist der Verkehrssektor weiterhin verantwortlich fuer eine Reihe gesellschaftlicher Probleme, wie beispielsweise Flaechenverbrauch und Verkehrssicherheit. Die steigende Motorisierung in einer bestehendem staedtischen Infrastruktur ist heutzutage nicht nachhaltig. Petroleumtreibstoffe, von denen heute noch fast alle Verkehrssysteme abhaengig sind, sind nicht erneuerbar. Zusammenfassend

  20. From Process Understanding Via Soil Functions to Sustainable Soil Management - A Systemic Approach

    Science.gov (United States)

    Wollschlaeger, U.; Bartke, S.; Bartkowski, B.; Daedlow, K.; Helming, K.; Kogel-Knabner, I.; Lang, B.; Rabot, E.; Russell, D.; Stößel, B.; Weller, U.; Wiesmeier, M.; Rabot, E.; Vogel, H. J.

    2017-12-01

    Fertile soils are central resources for the production of biomass and the provision of food and energy. A growing world population and latest climate targets lead to an increasing demand for both, food and bio-energy, which requires preserving and improving the long-term productivity of soils as a bio-economic resource. At the same time, other soil functions and ecosystem services need to be maintained: filter for clean water, carbon sequestration, provision and recycling of nutrients, and habitat for biological activity. All these soil functions result from the interaction of a multitude of physical, chemical and biological processes that are not yet sufficiently understood. In addition, we lack understanding about the interplay between the socio-economic system and the soil system and how soil functions benefit human wellbeing. Hence, a solid and integrated assessment of soil quality requires the consideration of the ensemble of soil functions and its relation to soil management to finally be able to develop site-specific options for sustainable soil management. We present an integrated modeling approach that investigates the influence of soil management on the ensemble of soil functions. It is based on the mechanistic relationships between soil functional attributes, each explained by a network of interacting processes as derived from scientific evidence. As the evidence base required for feeding the model is for the most part stored in the existing scientific literature, another central component of our work is to set up a public "knowledge-portal" providing the infrastructure for a community effort towards a comprehensive knowledge base on soil processes as a basis for model developments. The connection to the socio-economic system is established using the Drivers-Pressures-Impacts-States-Responses (DPSIR) framework where our improved understanding about soil ecosystem processes is linked to ecosystem services and resource efficiency via the soil functions.

  1. A New Take on John Maynard Smith's Concept of Protein Space for Understanding Molecular Evolution

    Science.gov (United States)

    Hartl, Daniel L.

    2016-01-01

    Much of the public lacks a proper understanding of Darwinian evolution, a problem that can be addressed with new learning and teaching approaches to be implemented both inside the classroom and in less formal settings. Few analogies have been as successful in communicating the basics of molecular evolution as John Maynard Smith’s protein space analogy (1970), in which he compared protein evolution to the transition between the terms WORD and GENE, changing one letter at a time to yield a different, meaningful word (in his example, the preferred path was WORD → WORE → GORE → GONE → GENE). Using freely available computer science tools (Google Books Ngram Viewer), we offer an update to Maynard Smith’s analogy and explain how it might be developed into an exploratory and pedagogical device for understanding the basics of molecular evolution and, more specifically, the adaptive landscape concept. We explain how the device works through several examples and provide resources that might facilitate its use in multiple settings, ranging from public engagement activities to formal instruction in evolution, population genetics, and computational biology. PMID:27736867

  2. Measuring Visual Literacy Skills on Students’ Concept Understanding of Genetic Transfer Material

    Science.gov (United States)

    Fibriana, F.; Pamelasari, S. D.; Aulia, L. S.

    2017-04-01

    Visualization is an important skill for all students majoring in natural sciences. Also, the visual literacy skills (VLS) are essential for Microbiology learning. The lecturer can use the external representations (ERs) to visualize the microorganisms and its microenvironment. One of learning materials which are rather difficult to interpret in microbiology is genetic transfer. In this study, we measure the VLS on students’ concept understanding of genetic transfer material using a simple test. The tests were held before and after the lecture on this topic employing a combination of talking drawing with picture and picture model. The results show that in the beginning, students showed their poor visual literacy. After the lecture, students were able to draw their understanding on the genetic transfer in bacteria. Most students’ visual literacy ability improves in the level of acceptable. In conclusion, the students’ ability was improved in the average amount of conceptual knowledge. This result reveals that some students comprehend in the correct level of ability, meaning that they have a high degree of conceptual (propositional) and visual knowledge.

  3. Mapping and understanding pasturelands in Brazil in pursuit of a sustainable livestock intensification

    Science.gov (United States)

    Ferreira, L. G.; Araujo, F. M.; Parente, L. L.; Arantes, A. E.; Faria, A. S.; Silva, J. R.; dos Santos, C.; Santos, A.; Nogueira, S.; Mara, L.; Arantes, G.

    2016-12-01

    The agricultural sector plays a key role in the Brazilian economy, corresponding to approximately 25% of GDP and occupying about 30% of the national territory. Specifically with regard to livestock, Brazil, which has the largest herd of cattle trade in the world, and approximately 165 million hectares of cultivated pastures, concentrates in the cattle ranching activity a huge potential for mitigating greenhouse gas emissions. In fact, a more efficient use of these pastures is certainly the most important single factor for Brazil to meet its targets for reducing greenhouse gases, reduce the loss of habitats and sustainably respond to the commercial demands in the sector, thus, adjusting to climate change. As spatially explicit and updated information on the pasture areas is instrumental for understanding the dynamics of land conversion, as well as for generating alternative land-use / occupation scenarios, in this study we present a new pasture map for Brazil, based on objective mapping criteria and automated strategies. Based on the analysis of biophysical parameters (e.g. gross primary productivity), evaluated according to 25 edafoclimatic regions, a categorization of the Brazilian pasturelands, regarding distinct carrying capacities and degradation stages, is also presented. All the datasets and information used and generated are public and can easily accessed through he PASTAGEM.ORG portal, a major source of public agricultural and environmental data in Brazil.

  4. Increasing the understanding of chemical concepts: The effectiveness of multiple exposures

    Science.gov (United States)

    Bius, Janet H.

    Chemistry is difficult because it has multilevels of knowledge with each level presenting challenges in vocabulary, abstract thinking, and symbolic language. Students have to be able to transfer between levels to understand the concepts and the theoretical models of chemistry. The cognitive theories of constructivism and cognitive-load theory are used to explain the difficulties novice learners have with the subject of chemistry and methods to increase success for students. The relationship between external representations, misconceptions and topics on the success of students are addressed. If students do not know the formalisms associated with chemical diagrams and graphs, the representations will decrease student success. Misconceptions can be formed when new information is interpreted based on pre-existing knowledge that is faulty. Topics with large amount of interacting elements that must be processed simultaneously are considered difficult to understand. New variables were created to measure the number of times a student is exposed to a chemical concept. Each variable was coded according to topic and learning environment, which are the lecture and laboratory components of the course, homework assignments and textbook examples. The exposure variables are used to measure the success rate of students on similar exam questions. Question difficulty scales were adapted for this project from those found in the chemical education literature. The exposure variables were tested on each level of the difficulty scales to determine their effect at decreasing the cognitive demand of these questions. The subjects of this study were freshmen science majors at a large Midwest university. The effects of the difficulty scales and exposure variables were measured for those students whose exam scores were in the upper one-fourth percentile, for students whose test scores were in the middle one-half percentile, and the lower one-fourth percentile are those students that scored the

  5. Exploring prospective secondary science teachers' understandings of scientific inquiry and Mendelian genetics concepts using computer simulation

    Science.gov (United States)

    Cakir, Mustafa

    The primary objective of this case study was to examine prospective secondary science teachers' developing understanding of scientific inquiry and Mendelian genetics. A computer simulation of basic Mendelian inheritance processes (Catlab) was used in combination with small-group discussions and other instructional scaffolds to enhance prospective science teachers' understandings. The theoretical background for this research is derived from a social constructivist perspective. Structuring scientific inquiry as investigation to develop explanations presents meaningful context for the enhancement of inquiry abilities and understanding of the science content. The context of the study was a teaching and learning course focused on inquiry and technology. Twelve prospective science teachers participated in this study. Multiple data sources included pre- and post-module questionnaires of participants' view of scientific inquiry, pre-posttests of understandings of Mendelian concepts, inquiry project reports, class presentations, process videotapes of participants interacting with the simulation, and semi-structured interviews. Seven selected prospective science teachers participated in in-depth interviews. Findings suggest that while studying important concepts in science, carefully designed inquiry experiences can help prospective science teachers to develop an understanding about the types of questions scientists in that field ask, the methodological and epistemological issues that constrain their pursuit of answers to those questions, and the ways in which they construct and share their explanations. Key findings included prospective teachers' initial limited abilities to create evidence-based arguments, their hesitancy to include inquiry in their future teaching, and the impact of collaboration on thinking. Prior to this experience the prospective teachers held uninformed views of scientific inquiry. After the module, participants demonstrated extended expertise in

  6. Integration of ecological and thermodynamic concepts in the design of sustainable energy landscapes

    NARCIS (Netherlands)

    Stremke, S.; Koh, J.

    2011-01-01

    Resource depletion and climate change motivate a transition to sustainable energy systems that make effective use of renewable sources. Whereas nature presents strategies to sustain on the basis of renewables, the Laws of Thermodynamics can help to increase efficiency in energy use. In previous

  7. Implications of the Integration of Computing Methodologies into Conventional Marketing Research upon the Quality of Students' Understanding of the Concept

    Science.gov (United States)

    Ayman, Umut; Serim, Mehmet Cenk

    2004-01-01

    It has been an ongoing concern among academicians teaching social sciences to develop a better methodology to ease understanding of students. Since verbal emphasis is at the core of the concepts within such disciplines it has been observed that the adequate or desired level of conceptual understanding of the students to transforms the theories…

  8. Force, Velocity, and Work: The Effects of Different Contexts on Students' Understanding of Vector Concepts Using Isomorphic Problems

    Science.gov (United States)

    Barniol, Pablo; Zavala, Genaro

    2014-01-01

    In this article we compare students' understanding of vector concepts in problems with no physical context, and with three mechanics contexts: force, velocity, and work. Based on our "Test of Understanding of Vectors," a multiple-choice test presented elsewhere, we designed two isomorphic shorter versions of 12 items each: a test with no…

  9. Using Two-Tier Test to Identify Primary Students' Conceptual Understanding and Alternative Conceptions in Acid Base

    Science.gov (United States)

    Bayrak, Beyza Karadeniz

    2013-01-01

    The purpose of this study was to identify primary students' conceptual understanding and alternative conceptions in acid-base. For this reason, a 15 items two-tier multiple choice test administered 56 eighth grade students in spring semester 2009-2010. Data for this study were collected using a conceptual understanding scale prepared to include…

  10. Integrating the Concept of Sustainable Development into English Language Curriculum of Environmental Engineering Sciences

    Directory of Open Access Journals (Sweden)

    Rūta Petkutė

    2012-06-01

    Full Text Available The article attempts to present and discuss practical implementation of the objectives of the project Sustainable Living Environment carried out at the Faculty of Environmental Engineering of Vilnius Gediminas Technical University (VGTU. The project is a response to a commonly articulated and acknowledged need to infuse sustainable development principles into traditional curricula of all levels of education to pursue goals of sustainable development. Thus, the present study aims to take an account of the increasing role of Education for Sustainable Development (ESD in a globalized world and define how the implimentation of the ESD objectives changes teaching/learning patterns at a university of technology. Moreover, it offers an interdisciplinary curriculum scheme for teaching/learning English as a second language for Environmental Engineering as an efficient means to integrate principles of sustainable development into language classroom.

  11. Piloting a Geoscience Literacy Exam for Assessing Students' Understanding of Earth, Climate, Atmospheric and Ocean Science Concepts

    Science.gov (United States)

    Steer, D. N.; Iverson, E. A.; Manduca, C. A.

    2013-12-01

    This research seeks to develop valid and reliable questions that faculty can use to assess geoscience literacy across the curriculum. We are particularly interested on effects of curricula developed to teach Earth, Climate, Atmospheric, and Ocean Science concepts in the context of societal issues across the disciplines. This effort is part of the InTeGrate project designed to create a population of college graduates who are poised to use geoscience knowledge in developing solutions to current and future environmental and resource challenges. Details concerning the project are found at http://serc.carleton.edu/integrate/index.html. The Geoscience Literacy Exam (GLE) under development presently includes 90 questions. Each big idea from each literacy document can be probed using one or more of three independent questions: 1) a single answer, multiple choice question aimed at basic understanding or application of key concepts, 2) a multiple correct answer, multiple choice question targeting the analyzing to analysis levels and 3) a short essay question that tests analysis or evaluation cognitive levels. We anticipate multiple-choice scores and the detail and sophistication of essay responses will increase as students engage with the curriculum. As part of the field testing of InTeGrate curricula, faculty collected student responses from classes that involved over 700 students. These responses included eight pre- and post-test multiple-choice questions that covered various concepts across the four literacies. Discrimination indices calculated from the data suggest that the eight tested questions provide a valid measure of literacy within the scope of the concepts covered. Student normalized gains across an academic term with limited InTeGrate exposure (typically two or fewer weeks of InTeGrate curriculum out of 14 weeks) were found to average 16% gain. A small set of control data (250 students in classes from one institution where no InTeGrate curricula were used) was

  12. Understanding the nutrigenomic definitions and concepts at the food-genome junction.

    Science.gov (United States)

    Subbiah, M T Ravi

    2008-12-01

    The marked differences in individual response to dietary factors have led to major controversies in nutrition and puzzled nutrition scientists over the last century. The emerging field of nutrigenomics helps us to understand the basis for some of these differences and also promises us the ability to tailor diet based on individual genetic makeup. Great advances in Human Genome Project, documentation of single nucleotide polymorphisms (SNPs) in candidate genes and their association with metabolic imbalances have gradually added new tests to the nutrigenomic panel. Studies based on ethnopharmacology and phytotherapy concepts showed that nutrients and botanicals can interact with the genome causing marked changes in gene expression. This has led to the commercial development of nutraceuticals and functional foods that can modify negative health effects of individual genetic profile bringing the field to the "food/genome" junction. Despite the promise of nutrigenomics to personalize diet, there is skepticism whether it can truly bring about meaningful modification of the risk factors connected to chronic diseases, due to the lack of large scale nutrition intervention studies. Several intervention studies currently underway in the United States and abroad (Israel, Spain, and France) will further help validate nutrigenomic concepts. France has already introduced a National Nutrition and Health Program to assess nutritional status and risk of major metabolic diseases. As the field(s) related to nutritional genomics advance in their scope, it is essential that: (a) strict guidelines be followed in the nomenclature and definition of the subdisciplines; and (b) the state/federal regulatory guidelines be updated for diagnostic laboratories, especially for those offering tests directly to the public (without a physician's request) to help protect the consumer.

  13. The social accountability of doctors: a relationship based framework for understanding emergent community concepts of caring.

    Science.gov (United States)

    Green-Thompson, Lionel P; McInerney, Patricia; Woollard, Bob

    2017-04-12

    Social accountability is defined as the responsibility of institutions to respond to the health priorities of a community. There is an international movement towards the education of health professionals who are accountable to communities. There is little evidence of how communities experience or articulate this accountability. In this grounded theory study eight community based focus group discussions were conducted in rural and urban South Africa to explore community members' perceptions of the social accountability of doctors. The discussions were conducted across one urban and two rural provinces. Group discussions were recorded and transcribed verbatim. Initial coding was done and three main themes emerged following data analysis: the consultation as a place of love and respect (participants have an expectation of care yet are often engaged with disregard); relationships of people and systems (participants reflect on their health priorities and the links with the social determinants of health) and Ubuntu as engagement of the community (reflected in their expectation of Ubuntu based relationships as well as part of the education system). These themes were related through a framework which integrates three levels of relationship: a central community of reciprocal relationships with the doctor-patient relationship as core; a level in which the systems of health and education interact and together with social determinants of health mediate the insertion of communities into a broader discourse. An ubuntu framing in which the tensions between vulnerability and power interact and reflect rights and responsibility. The space between these concepts is important for social accountability. Social accountability has been a concept better articulated by academics and centralized agencies. Communities bring a richer dimension to social accountability through their understanding of being human and caring. This study also creates the connection between ubuntu and social

  14. Undergraduate Writing Promotes Student’s Understanding of International Sustainable Development in Horticulture

    Directory of Open Access Journals (Sweden)

    Neil O. Anderson

    2011-12-01

    Full Text Available Promotion of undergraduate student thinking and learning in the realm of sustainable production is a new focus for horticulture curricula. In a writing intensive course, Greenhouse Management (Hort 3002W; University of Minnesota, students focus their learning of sustainability by writing peer-reviewed, 3-phase ‘Worldwide Sustainable Horticultural Crop Production Papers’ on past, present, and future prospects for sustainability. The USA is used as an in-class example throughout the semester while each student focuses their writing on a specific country of their choosing. Their papers focus on eight goals for each country across the three Phases: I—their choice of a country, definition of sustainability, identification of historical production practices, current production statistics; II—current production practices and integration of historical/current practices (ranked strategies; III—finalized sustainable development strategy, design of a future sustainable, controlled-environment production facility. The last two goals (Phase III provide plant breeders with potential breeding objectives for country-specific cultivar development within a sustainable production framework. Completed papers are web-published for global availability to enable each country’s researchers and policy makers to access sustainable ideas for future development. In 2009–2010, ‘Worldwide Sustainable Horticultural Crop Production Papers’ were published for 41 countries which were downloaded 3900 times in 19 months through April 2011. This large readership indicates such an assignment can generate interest in either undergraduate writing about developing sustainable horticulture and/or the topic area itself, although the exact purpose of the downloads or the location of the users could not be determined.

  15. Beyond Recycling: Guiding Preservice Teachers to Understand and Incorporate the Deeper Principles of Sustainability

    Science.gov (United States)

    Bauermeister, Maxine L.; Diefenbacher, Lori H.

    2015-01-01

    Sustainability is a term with an evolving definition that applies to more than the physical environment. It speaks to the interconnectivity of every action we take (or fail to take) and to human beings' relationships with one another and their environment. A sustainable future is one in which global citizens engage in critical thinking,…

  16. Using a Council of Beings to Ascertain Student Understanding of the Relationship between Sense-of-Place and Environmental Sustainability

    Science.gov (United States)

    Bogan, Margaret B.

    2012-01-01

    A modified J. Seed, Council of Beings is used to ascertain participants' understanding of their sense of place within the environment. Over the past 15 years, students in environmental education, teachers in-service programs or undergraduate face-to-face and Internet sustainability education courses have been exposed to pedagogy that leads to the…

  17. Theoretical and substantive concept of sustainable close-to-nature managed progress

    Directory of Open Access Journals (Sweden)

    Dušan Plut

    2005-12-01

    Full Text Available Implementation of the principles of sustainability in the economic, social and environmental field means that organisation and (material operation of a society is permanently adapted to the environment. Sustainable close-to-naturemanaged development, or in a broader sense progress, means permanent (sustainable and simultaneous improvement of material, social and environmental quality of life, thus a permanent raise of the welfare in its broader sense of all inhabitants within the capacities (limitations of the environment. The opportunity of geography is to take an active part in the realisation of close-to-nature managed patterns of the spatial organisation of human activity.

  18. Using Concept Mapping to Improve Poor Readers' Understanding of Expository Text

    Science.gov (United States)

    Morfidi, Eleni; Mikropoulos, Anastasios; Rogdaki, Aspasia

    2018-01-01

    The present study examined whether the use of concept mapping is more effective in teaching expository material in comparison to a traditional, lecture only, approach. Its objective was threefold. First, to determine if multimedia concept mapping produces differential learning outcomes compared to digital text-based concept mapping. Secondly, to…

  19. The Effective Concepts on Students' Understanding of Chemical Reactions and Energy

    Science.gov (United States)

    Ayyildiz, Yildizay; Tarhan, Leman

    2012-01-01

    The purpose of this study was to determine the relationship between the basic concepts related to the unit of "Chemical Reactions and Energy" and the sub-concepts underlying for meaningful learning of the unit and to investigate the effectiveness of them on students' learning achievements. For this purpose, the basic concepts of the unit…

  20. Analyzing the Concept of Planetary Boundaries from a Strategic Sustainability Perspective: How Does Humanity Avoid Tipping the Planet?

    Directory of Open Access Journals (Sweden)

    Karl-Henrik Robèrt

    2013-06-01

    Full Text Available Recently, an approach for global sustainability, the planetary-boundary approach (PBA, has been proposed, which combines the concept of tipping points with global-scale sustainability indicators. The PBA could represent a significant step forward in monitoring and managing known and suspected global sustainability criteria. However, as the authors of the PBA describe, the approach faces numerous and fundamental challenges that must be addressed, including successful identification of key global sustainability metrics and their tipping points, as well as the coordination of systemic individual and institutional actions that are required to address the sustainability challenges highlighted. We apply a previously published framework for systematic and strategic development toward a robust basic definition of sustainability, i.e., the framework for strategic sustainable development (FSSD, to improve and inform the PBA. The FSSD includes basic principles for sustainability, and logical guidelines for how to approach their fulfillment. It is aimed at preventing unsustainable behavior at both the micro, e.g., individual firm, and macro, i.e., global, levels, even when specific global sustainability symptoms and metrics are not yet well understood or even known. Whereas the PBA seeks to estimate how far the biosphere can be driven away from a "normal" or "natural" state before tipping points are reached, because of ongoing violations of basic sustainability principles, the FSSD allows for individual planners to move systematically toward sustainability before all impacts from not doing so, or their respective tipping points, are known. Critical weaknesses in the PBA can, thus, be overcome by a combined approach, significantly increasing both the applicability and efficacy of the PBA, as well as informing strategies developed in line with the FSSD, e.g., by providing a "global warning system" to help prioritize strategic actions highlighted by the FSSD

  1. Using Metasynthesis to Develop Sensitising Concepts to Understand Torres Strait Islander Migration

    Directory of Open Access Journals (Sweden)

    Vinnitta Patricia Mosby

    2013-03-01

    Full Text Available Emerging research indicates that more and more Indigenous peoples will be forced to migrate due to climate change. Current responses focus on mitigation and adaptation strategies. One such group, Torres Strait Islander people are already moving for other reasons and existing vulnerabilities compound levels of disadvantage when moving. It will be important to understand Torres Strait Islander people’s experiences of contemporary movements in order to inform policy development and facilitate the process of migration and resettlement as movement increases. A synthesis of existing studies would allow the development of sensitising concepts that could inform future research in the Torres Strait Islander context. This article presents a metasynthesis of six qualitative studies of the experiences of different Indigenous and minority groups at various stages of migration, displacement and resettlement. Articles were selected on contemporary movements (2001-2011 and importantly the inclusion of first person voice. Reciprocal translation was used to synthesise common themes and a core construct. The overarching construct that became apparent from the metasynthesis was ‘continuity of being’ through staying connected to self, family and culture. Three themes emerged: ‘freedom to be’, ‘staying close’ and ‘forming anchor’. These were enacted through people valuing their personal, social, religious and political freedom and recognising the importance of maintaining or forming strong social and family networks. When researching the experiences of Torres Strait Islanders it will be necessary to focus on motivations for moving, and understand the processes for staying connected to kin and homeland in order to achieve the desired outcomes of successful resettlement under conditions of uncertainty.

  2. The acrophysis: a unifying concept for understanding enchondral bone growth and its disorders. II. Abnormal growth

    Energy Technology Data Exchange (ETDEWEB)

    Oestreich, Alan E. [Department of Radiology, Cincinnati Children' s Hospital Medical Center, 3333 Burnet Avenue, OH 45229-3039, Cincinnati (United States)

    2004-03-01

    In order to discuss and illustrate the effects common to normal and abnormal enchondral bone at the physes and at all other growth plates of the developing child, the term ''acrophysis'' was proposed. Acrophyses include the growth plates of secondary growth centers including carpals and tarsals and apophyses, and the growth plates at the nonphyseal ends of small tubular bones. Abnormalities at acrophyseal sites are analogous to those at the physeal growth plates and their metaphyses. For example, changes relating to the zone of provisional calcification (ZPC) are often important to the demonstration of such similarities. Lead lines were an early example of the concept of analogy from abnormality due to physeal and to acrophyseal disturbance. The ZPC is a key factor in understanding patterns of rickets and its healing. Examples (including hypothyroidism, scurvy and other osteoporosis, Ollier disease, achondroplasia, and osteopetrosis, as well as the family of frostbite, Kashin-Beck disease, and rat bite fever) illustrate the acrophysis principle and in turn their manifestations are explained by that principle. (orig.)

  3. Ecological Understanding of Concept Blockage in Writing Anxiety Based on Bronfenbrenner' Chronosystem

    Directory of Open Access Journals (Sweden)

    Mohsen Nazari

    2017-10-01

    Full Text Available During this qualitative study on writing anxiety among EFL learners which was done as part of a large scale Ph.D dissertation by the authors, most learners complained about conceptual blockage. They claimed they did not know what to write or how to start. We started to ecologically study the causes of the issue from Bronfenbrenner's perspective. We realized that the learners' causes are mostly related to chronosystem than macro-system or microsystem. The participants were 8 novice EFL tobe teachers and 8 expert EFL teachers of Iranian ministry of education who voluntarily took part in a longitudinal study in three academic semesters. They were interviewed, observed and asked to keep journals; we coded all the data using Nvivo10. The finding confirmed Horwits' idea (1986 that the discrepancy between matured thought and immature language skill is one of the causes of concept blockage. Therefore, besides all the ecological elements and the chronosystem interactions, learners should improve their language skills to get rid of conceptual blockage. Finally, in order to understand and interpret the learners' complex behavior in classroom situations, it is better to study ecologically

  4. BUILDING STUDENTS’ UNDERSTANDING OF QUADRATIC EQUATION CONCEPT USING NAÏVE GEOMETRY

    Directory of Open Access Journals (Sweden)

    Achmad Dhany Fachrudin

    2014-07-01

    Full Text Available The purpose of this research is to know how Naïve Geometry method can support students’ understanding about the concept of solving quadratic equations. In this article we will discuss one activities of the four activities we developed. This activity focused on how students linking the Naïve Geometry method with the solving of the quadratic equation especially on how student bring geometric solution into algebraic form. This research was conducted in SMP Negeri 1 Palembang. Design research was chosen as method used in this research that have three main phases. The results of this research showed that manipulating and reshaping the rectangle into square could stimulate students to acquire the idea of solving quadratic equations using completing perfect square method. In the end of the meeting, students are also guided to reinvent the general formula to solve quadratic equations.Keywords: Quadratic Equations, Design Research, Naïve Geometry, PMRI DOI: http://dx.doi.org/10.22342/jme.5.2.1502.191-202

  5. The acrophysis: a unifying concept for understanding enchondral bone growth and its disorders. II. Abnormal growth

    International Nuclear Information System (INIS)

    Oestreich, Alan E.

    2004-01-01

    In order to discuss and illustrate the effects common to normal and abnormal enchondral bone at the physes and at all other growth plates of the developing child, the term ''acrophysis'' was proposed. Acrophyses include the growth plates of secondary growth centers including carpals and tarsals and apophyses, and the growth plates at the nonphyseal ends of small tubular bones. Abnormalities at acrophyseal sites are analogous to those at the physeal growth plates and their metaphyses. For example, changes relating to the zone of provisional calcification (ZPC) are often important to the demonstration of such similarities. Lead lines were an early example of the concept of analogy from abnormality due to physeal and to acrophyseal disturbance. The ZPC is a key factor in understanding patterns of rickets and its healing. Examples (including hypothyroidism, scurvy and other osteoporosis, Ollier disease, achondroplasia, and osteopetrosis, as well as the family of frostbite, Kashin-Beck disease, and rat bite fever) illustrate the acrophysis principle and in turn their manifestations are explained by that principle. (orig.)

  6. The Concept of Sustainability in View of Micro, Small and Medium Brazilian Companies

    OpenAIRE

    Meirelles , Claudio ,; Sacomano , José ,; Papalardo , Fabio

    2014-01-01

    Part 1: Knowledge-Based Sustainability; International audience; The present moment in enterprises scenario show a triple crisis in financial, ecological and social aspects, forcing companies to revise their strategy to make a stand with sustainably in the market. Micro, small and medium organizations (MSMEs) are 99% of companies in the world, main source of employment and are having difficulties to adapt to this moment because of the lack of public policies, knowledge and innovation capacity....

  7. Guava Waste to Sustain Guava (Psidium guajava) Agroecosystem: Nutrient ?Balance? Concepts

    OpenAIRE

    Souza, Henrique A.; Parent, Serge-?tienne; Rozane, Danilo E.; Amorim, Daniel A.; Modesto, Viviane C.; Natale, William; Parent, Leon E.

    2016-01-01

    The Brazilian guava processing industry generates 5.5 M Mg guava waste year−1 that could be recycled sustainably in guava agro-ecosystems as slow-release fertilizer. Our objectives were to elaborate nutrient budgets and to diagnose soil, foliar, and fruit nutrient balances in guava orchards fertilized with guava waste. We hypothesized that (1) guava waste are balanced fertilizer sources that can sustain crop yield and soil nutrient stocks, and (2) guava agroecosystems remain productive within...

  8. Guava waste to sustain guava (Psidium guajava) agroecosystem: nutrient "balance" concepts

    OpenAIRE

    Henrique Antunes de Souza; Serge-Étienne Parent; Danilo Eduardo Rozane; Daniel Angelucci de Amorim; Viviane Cristina Modesto; William Natale; Leon Etienne Parent

    2016-01-01

    The Brazilian guava processing industry generates 5.5 M Mg guava waste yr-1 that could be recycled sustainably in guava agro-ecosystems as slow-release fertilizer. Our objectives were to elaborate nutrient budgets and to diagnose soil, foliar and fruit nutrient balances in guava orchards fertilized with guava waste. We hypothesized that (1) guava waste are balanced fertilizer sources that can sustain crop yield and soil nutrient stocks, and (2) guava agroecosystems remain productive within na...

  9. Understanding Social Sustainability in Housing Form the Case Study "Wohnen Mit Uns" in Vienna and Adaptibility to Turkey

    Directory of Open Access Journals (Sweden)

    Hatice Kalfaoglu Hatipoglu

    2017-06-01

    Full Text Available The aim of this research paper is to contribute to the design of socially sustainable housing by discussing the significance of social sustainability and assessing this quality according to the determined criterias of social sustainability. There is a massive construction industry in Turkey, most of which is in the housing sector. These residential areas generally have been built as chaotic mass productions and lack a vision related to social quality.  Today, there are significant problems confronting the building sector, such as globalisation, industrialisation, the imbalance between nature and humanity. These problems determine the quality of life we will have in the future. The intention of this paper is to demonstrate more socially orientated housing design, especially in countries such as Turkey in which this aspect is not a real concern in the housing practice according to the perception of author, especially in comparison to Europe. İn order to achieve this goal, this paper first points out the importance of social sustainability in housing within architectural quality. The description and necessity of social sustainability in multi-unit housing have been discussed and the criteria have been determined to evaluate the quality of social sustainability. An award-winning project in Austria has been chosen as a case study to analyse and perceive social sustainability in residential areas, according to the described criteria. These criteria for assessment and the concrete case study including the emerging phase of the project background provide a guideline for developing housing projects towards social quality in Turkey. In conclusion a general evaluation of the success of the case study with its background and applicability of this concept to Turkish housing which is used by middle-class has been discussed.

  10. Sustainable transformation

    DEFF Research Database (Denmark)

    Andersen, Nicolai Bo

    This paper is about sustainable transformation with a particular focus on listed buildings. It is based on the notion that sustainability is not just a question of energy conditions, but also about the building being robust. Robust architecture means that the building can be maintained and rebuilt......, that it can be adapted to changing functional needs, and that it has an architectural and cultural value. A specific proposal for a transformation that enhances the architectural qualities and building heritage values of an existing building forms the empirical material, which is discussed using different...... theoretical lenses. It is proposed that three parameters concerning the ꞌtransformabilityꞌ of the building can contribute to a more nuanced understanding of sustainable transformation: technical aspects, programmatic requirements and narrative value. It is proposed that the concept of ꞌsustainable...

  11. Urban Labelling: Resilience and Vulnerability as Key Concepts for a Sustainable Planning

    Directory of Open Access Journals (Sweden)

    Giuseppe Mazzeo

    2014-05-01

    Full Text Available Planning and implementation of sustainable urban neighborhoods has led in Europe and in other countries to the development of some recognized best practices. Each of these cases has followed specific aims and methodologies but it is still far the systematization of the results and the translation of the good practices into action lines.  The paper involves the necessity of new tools for local planning directed to the overall sustainability of the city. Sustainable energy, reduction of the climate-change causes, waste reduction, attention to water resources and to the natural ones are specific operational elements. A possible way to face this challenge is to consider the potentialities of executive plans addressed to increase the sustainability of urban areas starting from limited portions of they. These plans should foresee the minimum impact of volumes and functions to be set up, will provide for the realization of public spaces with zero or almost zero impact, will promote the integration of all the technologies to reduce consumption and encourage energy generation, in order to increase the resilience of the city reducing its vulnerability.  On this basis, aim of the paper is to deepen the issue of the measure of the expected results. To this purpose it is necessary to structure a new certification system (Urban Labelling that can be able to assign a specific sustainability level to a plan using both traditional and new indexes. The same system can also be applied to existing urban areas and as a basis for evaluating reward operations. The impact of the new tool will be cultural (to switch by a description to the facts in relation to urban sustainability, economic (to involve the supply chain from design, implementation, and urban transformation and technological (the sustainability of urban areas requires the use of advanced technologies not only for the buildings but also in the control of green areas, public spaces and mobility.

  12. Touchpoint : A Foundation for Sustainable Product Development

    OpenAIRE

    Durgin, Ron; Grierson, Scott

    2005-01-01

    Much has been written on the subject of sustainable development and the urgent need for society to understand and address human impacts on socio-ecological systems. Emerging from this broad context, the concept of sustainable product development (SPD) represents an important strategy to steer human society towards sustainability. This thesis investigates strategies for integrating sustainability concepts, through organisational learning and stakeholder management, into a new product developme...

  13. Understanding environmental contributions to autism: Causal concepts and the state of science.

    Science.gov (United States)

    Hertz-Picciotto, Irva; Schmidt, Rebecca J; Krakowiak, Paula

    2018-04-01

    The complexity of neurodevelopment, the rapidity of early neurogenesis, and over 100 years of research identifying environmental influences on neurodevelopment serve as backdrop to understanding factors that influence risk and severity of autism spectrum disorder (ASD). This Keynote Lecture, delivered at the May 2016 annual meeting of the International Society for Autism Research, describes concepts of causation, outlines the trajectory of research on nongenetic factors beginning in the 1960s, and briefly reviews the current state of this science. Causal concepts are introduced, including root causes; pitfalls in interpreting time trends as clues to etiologic factors; susceptible time windows for exposure; and implications of a multi-factorial model of ASD. An historical background presents early research into the origins of ASD. The epidemiologic literature from the last fifteen years is briefly but critically reviewed for potential roles of, for example, air pollution, pesticides, plastics, prenatal vitamins, lifestyle and family factors, and maternal obstetric and metabolic conditions during her pregnancy. Three examples from the case-control CHildhood Autism Risks from Genes and the Environment Study are probed to illustrate methodological approaches to central challenges in observational studies: capturing environmental exposure; causal inference when a randomized controlled clinical trial is either unethical or infeasible; and the integration of genetic, epigenetic, and environmental influences on development. We conclude with reflections on future directions, including exposomics, new technologies, the microbiome, gene-by-environment interaction in the era of -omics, and epigenetics as the interface of those two. As the environment is malleable, this research advances the goal of a productive and fulfilling life for all children, teen-agers and adults. Autism Res 2018, 11: 554-586. © 2018 International Society for Autism Research, Wiley Periodicals, Inc

  14. Sustainable electricity generation for rural and peri-urban populations of sub-Saharan Africa: The 'flexy-energy' concept

    International Nuclear Information System (INIS)

    Azoumah, Y.; Yamegueu, D.; Ginies, P.; Coulibaly, Y.; Girard, P.

    2011-01-01

    Access to energy is known as a key issue for poverty reduction. Electrification rate of sub-Saharan countries is one of the lowest among the developing countries. However, this part of the world has natural energy resources that could help raising its access to energy, then its economic development. An original 'flexy-energy' concept of hybrid solar PV/diesel/biofuel power plant, without battery storage, is performed in this paper. This concept is developed in order to not only make access to energy possible for rural and peri-urban populations in Africa (by reducing the electricity generation cost) but also to make the electricity production sustainable in these areas. For landlocked countries like Burkina Faso, this concept could help them reducing their electricity bill (then their fuel consumption) and accelerate their rural and peri-urban electrification coverage. - Research highlights: → Design and load management Optimization are big concerns for hybrid systems. → Hybrid solar PV/Diesel is economically viable for remote areas and environmental friendly. → 'Flexy-energy' concept is a flexible hybrid solar PV/diesel/biomass suitable for remote areas. → 'Flexy-energy' concept is a flexible hybrid solar PV/diesel/biomass suitable for remote areas.

  15. Student understanding development in chemistry concepts through constructivist-informed laboratory and science camp process in secondary school

    Science.gov (United States)

    Pathommapas, Nookorn

    2018-01-01

    Science Camp for Chemistry Concepts was the project which designed to provide local students with opportunities to apply chemistry concepts and thereby developing their 21st century skills. The three study purposes were 1) to construct and develop chemistry stations for encouraging students' understandings in chemistry concepts based on constructivist-informed laboratory, 2) to compare students' understandings in chemistry concepts before and after using chemistry learning stations, and 3) to study students' satisfactions of using their 21st century skills in science camp activities. The research samples were 67 students who attended the 1-day science camp. They were levels 10 to 11 students in SumsaoPittayakarn School, UdonThani Province, Thailand. Four constructivist-informed laboratory stations of chemistry concepts were designed for each group. Each station consisted of a chemistry scenario, a question, answers in tier 1 and supporting reasons in tier 2, and 4 sets of experimental instruments. Four to five-member subgroups of four student groups parallel participated in laboratory station for an hour in each station. Student activities in each station concluded of individual pretest, group prediction, experimental design, testing out and collection data, interpreting the results, group conclusion, and individual post-test. Data collection was done by station mentors using two-tier multiple choice questions, students' written work and interviews. Data triangulation was used for interpreting and confirming students' understandings of chemistry concepts which divided into five levels, Sound Understanding (SU), Partial Understanding (PU), Specific Misconception (SM), No Understanding (NU) and No Response (NR), before and after collaborating at each station. The study results found the following: 1) four constructivist-laboratory stations were successfully designed and used to investigate student' understandings in chemistry concepts via collaborative workshop of

  16. Physical analogs that help to better understand the modern concepts on continental stretching, hyperextension and rupturing

    Science.gov (United States)

    Zalan, Pedro

    2014-05-01

    Three facts helped to establish a revolution in the understanding of how mega-continents stretch, rupture and breakup to form new continents and related passive margins: (1) the penetration of the distal portions of the Iberia-Newfoundland conjugate margins by several ODP wells (late 70's/early 80's), with the discovery of hyperextended crust and exhumation of lower crust and mantle between typical continental and oceanic domains, (2) field works in the Alps and in the Pyrenees that re-interpreted sedimentary successions and associated "ophiolites" as remnants of old Tethyan passive margins that recorded structural domains similar to those found in Iberia-Newfoundland, and (3) the acquisition of long and ultra-deep reflection seismic sections that could image for the first time sub-crustal levels (25-40 km) in several passive margins around the world. The interpretation of such sections showed that the concepts developed in the Iberia-Newfoundland margins and in the Alps could be applied to a great extent to most passive margins, especially those surrounding the North and South Atlantic Oceans. The new concepts of (i) decoupled deformation (upper brittle X lower ductile) within the proximal domain of the continental crust, (ii) of coupled deformation (hyperextension) in the distal crust and, (iii) of exhumation of deeper levels in the outer domain, with the consequent change in the physical properties of the rising rocks, defined an end-member in the new classification of passive margins, the magma-poor type (as opposed to volcanic passive margins). These concepts, together with the new reflection seismic views of the entire crustal structure of passive margins, forced the re-interpretation of older refraction and potential field data and the re-drawing of long established models. Passive margins are prime targets for petroleum exploration, thus, the great interest raised by this subject in both the academy and in the industry. Interestingly enough, the deformation

  17. Emotional Abuse: How the Concept Sheds Light on the Understanding of Psychological Harassment (in Quebec

    Directory of Open Access Journals (Sweden)

    Steve Harvey

    2005-11-01

    Full Text Available This paper reviews the concept of emotional abuse in the workplace and applies relevant findings and concepts to psychological harassment as defined in the legislation enacted in Quebec beginning June 1, 2004. It is noted that the terms are highly related by definition and that a clear similarity exists. Accordingly, a prospective look is taken at the challenges involved in the understanding and application of psychological harassment based on seven dimensions commonly studied and referred to in the academic literature on emotional abuse. The conclusion is that the determination of psychological harassment involves a multidimensional consideration of factors and that this gives rise to several challenges in applying the new legislation.Cet article s’intéresse au concept d’abus émotif au travail et à son application à des problèmes de harcèlement psychologique, tel que défini par la législation promulguée au Québec en juin 2004. Les définitions des deux termes sont rapprochées ce qui suggère qu’il s’agit de problèmes similaires. À des fins de prospective, l’article étudie les implications pratiques de l’application au harcèlement psychologique des sept dimensions associées à l’abus émotif dans la littérature scientifique. L’article arrive à la conclusion qu’un diagnostic de harcèlement psychologique requiert la prise en compte de facteurs multidimensionnels, ce qui soulève des difficultés multiples en ce qui a trait à l’application de la législation récente.Este artículo se interesa al concepto de abuso emotivo en el trabajo y a su aplicación a los problemas de acoso psicológico, según la definición que figura en la legislación promulgada en Québec en junio del 2004. Las definiciones de los dos términos son próximas lo que sugiere que se trata de problemas similares. Con fines prospectivos, el artículo estudia las implicaciones prácticas de la aplicación de siete dimensiones asociadas al

  18. Understanding The Impact of Formative Assessment Strategies on First Year University Students’ Conceptual Understanding of Chemical Concepts

    OpenAIRE

    Mehmet Aydeniz; Aybuke Pabuccu

    2011-01-01

    This study investigated the effects of formative assessment strategies on students’ conceptual understanding in a freshmen college chemistry course in Turkey. Our sample consists of 96 students; 27 males, 69 females. The formative assessment strategies such as reflection on exams, and collective problem solving sessions were used throughout the course. Data were collected through pre and post-test methodology. The findings reveal that the formative assessment strategies used in this study led...

  19. Exploring Corn-Ethanol As A Complex Problem To Teach Sustainability Concepts Across The Science-Business-Liberal Arts Curriculum

    Science.gov (United States)

    Oches, E. A.; Szymanski, D. W.; Snyder, B.; Gulati, G. J.; Davis, P. T.

    2012-12-01

    The highly interdisciplinary nature of sustainability presents pedagogic challenges when sustainability concepts are incorporated into traditional disciplinary courses. At Bentley University, where over 90 percent of students major in business disciplines, we have created a multidisciplinary course module centered on corn ethanol that explores a complex social, environmental, and economic problem and develops basic data analysis and analytical thinking skills in several courses spanning the natural, physical, and social sciences within the business curriculum. Through an NSF-CCLI grant, Bentley faculty from several disciplines participated in a summer workshop to define learning objectives, create course modules, and develop an assessment plan to enhance interdisciplinary sustainability teaching. The core instructional outcome was a data-rich exercise for all participating courses in which students plot and analyze multiple parameters of corn planted and harvested for various purposes including food (human), feed (animal), ethanol production, and commodities exchanged for the years 1960 to present. Students then evaluate patterns and trends in the data and hypothesize relationships among the plotted data and environmental, social, and economic drivers, responses, and unintended consequences. After the central data analysis activity, students explore corn ethanol production as it relates to core disciplinary concepts in their individual classes. For example, students in Environmental Chemistry produce ethanol using corn and sugar as feedstocks and compare the efficiency of each process, while learning about enzymes, fermentation, distillation, and other chemical principles. Principles of Geology students examine the effects of agricultural runoff on surface water quality associated with extracting greater agricultural yield from mid-continent croplands. The American Government course examines the role of political institutions, the political process, and various

  20. ‘Sometimes They Are Fun and Sometimes They Are Not’: Concept Mapping with English Language Acquisition (ELA and Gifted/Talented (GT Elementary Students Learning Science and Sustainability

    Directory of Open Access Journals (Sweden)

    Katrina Marzetta

    2018-01-01

    Full Text Available This study presents an ‘education for sustainability’ curricular model which promotes science learning in an elementary classroom through equity pedagogy. A total of 25 fourth-grade students from an urban, public school in Denver, Colorado participated in this mixed-methods study where concept maps were used as a tool for describing and assessing students’ understanding of ecosystem interactions. Concept maps provide a more holistic, systems-based assessment of science learning in a sustainability curriculum. The concept maps were scored and analyzed using SPSS to investigate potential differences in learning gains of English Language Acquisition (ELA and Gifted/Talented (GT students. Interviews were conducted after the concept maps were administered, then transcribed and inductively coded to generate themes related to science learning. Interviews also encouraged students to explain their drawings and provided a more accurate interpretation of the concept maps. Findings revealed the difference between pre- and post-concept map scores for ELA and GT learners were not statistically significant. Students also demonstrated an increased knowledge of ecosystem interactions during interviews. Concept maps, as part of an education for sustainability curriculum, can promote equity by providing diverse learners with different—yet equally valid—outlets to express their scientific knowledge.

  1. Understanding Kendal aquifer system: a baseline analysis for sustainable water management proposal

    Science.gov (United States)

    Lukman, A.; Aryanto, M. D.; Pramudito, A.; Andhika, A.; Irawan, D. E.

    2017-07-01

    North coast of Java has been grown as the center of economic activities and major connectivity hub for Sumatra and Bali. Sustainable water management must support such role. One of the basis is to understand the baseline of groundwater occurrences and potential. However the complex alluvium aquiver system has not been well-understood. A geoelectric measurements were performed to determine which rock layer has a good potential as groundwater aquifers in the northern coast of Kaliwungu Regency, Kendal District, Central Java province. Total of 10 vertical electrical sounding (VES) points has been performed, using a Schlumberger configuration with the current electrode spacing (AB/2) varies between 200 - 300 m and the potential difference electrode spacing (MN/2) varies between 0.5 to 20 m with depths target ranging between 150 - 200 m. Geoelectrical data processing is done using Ip2win software which generates resistivity value, thickness and depth of subsurface rock layers. Based on the correlation between resistivity value with regional geology, hydrogeology and local well data, we identify three aquifer layers. The first layer is silty clay with resistivity values vary between 0 - 10 ohm.m, then the second layer is tuffaceous claystone with resistivity value between 10 - 60 ohm.m. Both layers serve as impermeable layer. The third layer is sandy tuff with resistivity value between 60 - 100 ohm.m which serves as a confined aquifer layer located at 70 - 100 m below surface. Its thickness is vary between 70 to 110 m. The aquifer layer is a mixing of volcanic and alluvium sediment, which is a member of Damar Formation. The stratification of the aquifer system may change in short distance and depth. This natural setting prevent us to make a long continuous correlation between layers. Aquifer discharge is estimated between 5 - 71 L/s with the potential deep well locations lies in the west and southeast part of the study area. These hydrogeological settings should be used

  2. A technical investigation on tools and concepts for sustainable management of the subsurface in The Netherlands.

    Science.gov (United States)

    Griffioen, Jasper; van Wensem, Joke; Oomes, Justine L M; Barends, Frans; Breunese, Jaap; Bruining, Hans; Olsthoorn, Theo; Stams, Alfons J M; van der Stoel, Almer E C

    2014-07-01

    In response to increasing use of the subsurface, there is a need to modernise policies on sustainable use of the subsurface. This holds in particular for the densely populated Netherlands. We aimed to analyse current practice of subsurface management and the associated pressure points and to establish a conceptual overview of the technical issues related to sustainable management of the subsurface. Case studies on the exploitation of subsurface resources (including spatial use of the subsurface) were analysed, examining social relevance, environmental impact, pressure points and management solutions. The case studies ranged from constructing underground garages to geothermal exploitation. The following issues were identified for the technological/scientific aspects: site investigation, suitability, risk assessment, monitoring and measures in the event of failure. Additionally, the following general issues were identified for the administrative aspects: spatial planning, option assessment, precaution, transparency, responsibility and liability. These issues were explored on their technological implications within the framework of sustainable management of the subsurface. This resulted into the following key aspects: (1) sustainability assessment, (2) dealing with uncertainty and (3) policy instruments and governance. For all three aspects, different options were identified which might have a legal, economic or ethical background. The technological implications of these backgrounds have been identified. A set of recommendations for sustainable management of the subsurface resources (incl. space) was established: (1) management should be driven by scarcity, (2) always implement closed loop monitoring when the subsurface activities are high-risk, (3) when dealing with unknown features and heterogeneity, apply the precautionary principle, (4) responsibility and liability for damage must be set out in legislation and (5) sustainability should be incorporated in all

  3. Geosystem services:A concept in support of sustainable development of the subsurface

    NARCIS (Netherlands)

    van Ree, C.C.D.F.; van Beukering, P.J.H.

    2016-01-01

    Because functions of the subsurface are hidden from view, its important role in society is often taken for granted. Underground use in cities and subsurface resource extraction rapidly increase. Ensuring sustainability of the subsurface role requires balancing between exploitation and conservation,

  4. Figuring rural development : concepts and cases of land use, sustainability and integrative indicators

    NARCIS (Netherlands)

    Hobbes, Marieke

    2010-01-01

    Sustainable economic development is essential for hundreds of millions of poor households in rural areas. This book represents a merger of environmental science and rural development economics. It elucidates the linkage between rational choice theory and theories on land use change. It builds a

  5. Teaching Sustainable Development Concepts in the Laboratory: A Solid-Liquid Extraction Experiment

    Science.gov (United States)

    Parajo, Juan Carlos; Dominguez, Herminia; Santos, Valentin; Alonso, Jose Luis; Garrote, Gil

    2008-01-01

    One of the principles of sustainable development is to replace chemicals traditionally derived from oil with alternative, renewable materials. For example, phenol and phenol derivatives currently used in the manufacture of wood adhesives can be replaced (at least in part) by biopolymers extracted from biomass. In this work, pine bark (a renewable…

  6. Tools and concepts for sustainable management of the subsurface in the Netherlands: a technical investigation

    NARCIS (Netherlands)

    Griffioen, J.J.; Oomes, J.; Barends, F.; Breunese, J.; Bruining, H.; Olsthoorn, T.; Stams, F.; Stoel, A. van der; Wensem, J. van

    2013-01-01

    Increasing use of the subsurface leads to a need for modernisation of policies on sustainable use of the subsurface. We have analysed a series of case studies about exploitation of subsurface resources including spatial use of the subsurface, on social relevance, environmental impact, social and

  7. Rethinking the Concept of Sustainability: Hiroshima as a Subject of Peace Education

    Science.gov (United States)

    Ide, Kanako

    2017-01-01

    The article discusses a sustainable educational approach for developing a moral value of peace by using a historical event, the bombing of Hiroshima. To make the case, the article uses the care theory of Nel Noddings to discuss the interpersonal aspects of peace education. The article asks how care theory handles tragedies like Hiroshima and it…

  8. Key Concepts of Environmental Sustainability: Knowledge and Confidence Levels of FCS Teachers

    Science.gov (United States)

    Harden, Amy J.; Friesen, Carol A.; Thompson, Nancy E.

    2014-01-01

    Family and consumer sciences (FCS) is a logical discipline to promote environmental sustainability within the family because it is recognized as helping people make informed decisions about the well-being of individuals and their relationships and resources to achieve optimal quality of life.The objective of this article was to measure the…

  9. The concept of participatory local sustainability projects in seven Chinese villages.

    Science.gov (United States)

    Marschalek, Ilse

    2008-04-01

    SUCCESS was a scientific, multi-disciplinary case study of seven selected villages in China, coordinated by the Viennese research institute Oikodrom in which I have been a team member for 6 years. We assembled an international team of researchers to work together with local team leaders with the aim of involving village dwellers in a sustainability negotiation process. The project had a strong bottom-up approach, combined with top-down elements. Using participatory research methods, village teams discussed and developed ideas for concrete sustainability-oriented projects in their villages. By the end of the 3-year study of SUCCESS, equipped with the seeds of a multiple-scenario building process and the appropriate funding, each of the seven case study villages had generated ideas for local sustainability-oriented projects and put them into practice. The outcome of this participatory process is manifold. One major impact of the implementation of local projects was their visibility which was crucial for the village dwellers' confidence and their motivation to become engaged in a decision making process. The experience of their successful participation in a decision making process empowered them for self-organisation processes or a civil society process. The small projects offered interesting theoretical insights into how local contexts impact upon village dweller's decision on appropriate sustainability interventions. How they are as well in line with characteristics of different types of villages that were carried out within the study will be shown in this article.

  10. Introduction of Sustainability Concepts into Industrial Engineering Education: A Modular Approach

    Science.gov (United States)

    Nazzal, Dima; Zabinski, Joseph; Hugar, Alexander; Reinhart, Debra; Karwowski, Waldemar; Madani, Kaveh

    2015-01-01

    Sustainability in operations, production, and consumption continues to gain relevance for engineers. This trend will accelerate as demand for goods and services grows, straining resources and requiring ingenuity to replace boundless supply in meeting the needs of a more crowded, more prosperous world. Industrial engineers are uniquely positioned…

  11. A technical investigation on tools and concepts for sustainable management of the subsurface in The Netherlands

    NARCIS (Netherlands)

    Griffioen, Jasper; van Wensem, Joke; Oomes, Justine L.M.; Barends, Frans; Breunese, Jaap; Bruining, Hans; Olsthoorn, Theo; Stams, Alfons J.M.; van der Stoel, Almer E.C.

    2014-01-01

    In response to increasing use of the subsurface, there is a need to modernise policies on sustainable use of the subsurface. This holds in particular for the densely populated Netherlands. We aimed to analyse current practice of subsurface management and the associated pressure points and to

  12. A technical investigation on tools and concepts for sustainable management of the subsurface in The Netherlands.

    NARCIS (Netherlands)

    Griffioen, J.; Wensem, van J.; Oomes, J.L.; Barends, F.; Breunese, J.; Bruining, H.; Olsthoorn, T.; Stams, A.J.M.; Stoel, van der A.E.

    2014-01-01

    In response to increasing use of the subsurface, there is a need to modernise policies on sustainable use of the subsurface. This holds in particular for the densely populated Netherlands. We aimed to analyse current practice of subsurface management and the associated pressure points and to

  13. From Concept to Commercialisation: Student Learning in a Sustainable Engineering Innovation Project

    Science.gov (United States)

    Schafer, Andrea I.; Richards, Bryce S.

    2007-01-01

    An interdisciplinary sustainable design project that combines membrane technology with renewable energy to provide water for remote communities and developing countries was offered to students for voluntary participation. Through continuous design stages and improvements on several prototypes, laboratory testing and several field trials in…

  14. Bio-Inspired Sustainability Assessment for Building Product Development—Concept and Case Study

    Directory of Open Access Journals (Sweden)

    Rafael Horn

    2018-01-01

    Full Text Available Technological advancement culminating in a globalized economy has brought tremendous improvements for mankind in manifold respects but comes at the cost of alienation from nature. Human activities nowadays are unsustainable and cause severe damage especially in terms of global depletion and destabilization of natural systems but also harm its own social resources. In this paper, a sustainability assessment method is developed based on a bio-inspired sustainability framework that has been developed in the project TRR 141-C01 “The biomimetic promise.” It is aims at regaining the advantages of societal embeddedness in its environment through biological inspiration. The method is developed using a structured approach including requirement specification, description of the inventory models on bio-inspiration and sustainability assessment, creation of a bio-inspired sustainability assessment model and its validation. It is defined as an accompanying assessment for decision support, using a six-fold two-dimensional structure of social, economic and environmental functions and burdens. The method is applied and validated in 6 projects of TRR 141 and its applicability is exemplarily shown by the assessment of “Bio-flexi”, a biobased and biodegradable natural fiber reinforced plastic composite for indoor cladding applications. Based on the findings of the application the assessment method itself is proposed to be advanced towards an adaptive structure and a consequent outlook is provided.

  15. Sustainability and Entrepreneurial Action

    DEFF Research Database (Denmark)

    Korsgaard, Steffen T.; Anderson, Alistair

    instrument in the pursuit of sustainability.  Prior Work - Extant literature identifies two main approaches to sustainable entrepreneurship. (i) traditional exploitation of environmentally relevant opportunities and (ii) institutional entrepreneurship creating opportunities. We identify a novel form......: resource oriented sustainable entrepreneurial action.  Approach - The paper uses a case study approach to build deeper theoretical knowledge of environmentally sustainable entrepreneurship.  Results - The paper identifies and analyses a distinct form of sustainable entrepreneurship -  resource oriented...... entrepreneurship - which uses bricolage in various ways to create sustainable solutions. Implications and value - The concept of resource oriented sustainable entrepreneurship contributes to the theoretical understanding of how entrepreneurial action can support sustainability, Furthermore the case study has...

  16. Understanding sustainable seafood consumption behavior: an examination of the Ocean Wise (OW initiative in British Columbia

    Directory of Open Access Journals (Sweden)

    Katherine M. Dolmage

    2016-06-01

    Full Text Available Sustainable seafood labeling programs have been developed as one of several efforts to address the current dire trends in fish stocks. The Ocean Wise (OW program, started at the Vancouver Aquarium (Canada, works with restaurateurs and suppliers to simplify sustainable purchasing decisions. By aiding restaurateurs with responsible purchasing, OW hopes to shift demand to sustainable seafood products. OW has grown in numbers and spread across Canada quickly; we examine the factors associated with individual and organizational decisions to participate in the program, including personal, business, and program-related factors. These factors were examined in relation to OW membership by Vancouver restaurateurs. Results show that restaurateurs with greater knowledge of seafood issues and restaurants with greater commitment to a range of green initiatives are more likely to participate in the OW program. By focusing efforts on education and incorporating a range of green values into marketing, OW can maximize their limited resources to grow membership.

  17. Profile of Metacognition of Mathematics Pre-Service Teachers in Understanding the Concept of Integral Calculus with Regard Gender Differences

    Science.gov (United States)

    Misu, L.; Budayasa, I. K.; Lukito, A.

    2018-01-01

    This research is to describe metacognition profile of female and male mathematics’ pre-service teachers in understanding the concept of integral calculus. The subjects of this study are one female and 1 male mathematics’ pre-service teachers who have studied integral calculus. This research type is an explorative study with the qualitative approach. The main data collection of this research was obtained by using Interview technique. In addition, there are supporting data which is the result of the written work of research subjects (SP) in understanding the question of integral calculus. The results of this study are as follows: There is a difference in metacognition profiles between male and female mathematics’ pre-service teachers in the understanding concept of integral calculus in the interpreting category, especially the definite integral concept. While in the category of exemplifying, there is no difference in metacognition profile between male and female mathematics’ pre-service teachers either the definite integral concept and the indefinite integral concept.

  18. Understanding the dynamics of sustainable social-ecological systems: human behavior, institutions, and regulatory feedback networks.

    Science.gov (United States)

    Anderies, John M

    2015-02-01

    I present a general mathematical modeling framework that can provide a foundation for the study of sustainability in social- ecological systems (SESs). Using basic principles from feedback control and a sequence of specific models from bioeconomics and economic growth, I outline several mathematical and empirical challenges associated with the study of sustainability of SESs. These challenges are categorized into three classes: (1) the social choice of performance measures, (2) uncertainty, and (3) collective action. Finally, I present some opportunities for combining stylized dynamical systems models with empirical data on human behavior and biophysical systems to address practical challenges for the design of effective governance regimes (policy feedbacks) for highly uncertain natural resource systems.

  19. Sustainability

    OpenAIRE

    Harris, Nora; Shealy, Tripp; Klotz, Leidy

    2016-01-01

    Across fields, more sustainable and resilient outcomes are being realized through a whole systems design perspective, which guides decision-makers to consider the entire system affected including interdependent physical and social networks. Although infrastructure is extremely interdependent, consisting of diverse stakeholders and networks, the infrastructure design and construction process is often fragmented. This fragmentation can result in unnecessary tradeoffs, leading to poor outcomes f...

  20. The Virtual Solar System Project: Developing Conceptual Understanding of Astronomical Concepts through Building Three-Dimensional Computational Models.

    Science.gov (United States)

    Keating, Thomas; Barnett, Michael; Barab, Sasha A.; Hay, Kenneth E.

    2002-01-01

    Describes the Virtual Solar System (VSS) course which is one of the first attempts to integrate three-dimensional (3-D) computer modeling as a central component of introductory undergraduate education. Assesses changes in student understanding of astronomy concepts as a result of participating in an experimental introductory astronomy course in…

  1. The Impact of Three-Dimensional Computational Modeling on Student Understanding of Astronomy Concepts: A Qualitative Analysis. Research Report

    Science.gov (United States)

    Hansen, John; Barnett, Michael; MaKinster, James; Keating, Thomas

    2004-01-01

    In this study, we explore an alternate mode for teaching and learning the dynamic, three-dimensional (3D) relationships that are central to understanding astronomical concepts. To this end, we implemented an innovative undergraduate course in which we used inexpensive computer modeling tools. As the second of a two-paper series, this report…

  2. Addressing Pre-Service Teachers' Understandings and Difficulties with Some Core Concepts in the Special Theory of Relativity

    Science.gov (United States)

    Selcuk, Gamze Sezgin

    2011-01-01

    The aim of this study is to investigate pre-service teachers' understanding of and difficulties with some core concepts in the special theory of relativity. The pre-service teachers (n = 185) from the Departments of Physics Education and Elementary Science Education at Dokuz Eylul University (in Turkey) participated. Both quantitative and…

  3. 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…

  4. 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…

  5. Using Concept Maps as Instructional Materials to Foster the Understanding of the Atomic Model and Matter-Energy Interaction

    Science.gov (United States)

    Aguiar, Joana G.; Correia, Paulo R. M.

    2016-01-01

    In this paper, we explore the use of concept maps (Cmaps) as instructional materials prepared by teachers, to foster the understanding of chemistry. We choose fireworks as a macroscopic event to teach basic chemical principles related to the Bohr atomic model and matter-energy interaction. During teachers' Cmap navigation, students can experience…

  6. How school leaders and teachers understand the concept of inclusion and how they transform their visions of inclusion into practice

    OpenAIRE

    Svensen, Ann Elin

    2010-01-01

    Master's thesis in Special education This study focuses on how school leaders and teachers at different schools understand the concept of inclusion, and how they transform their visions of inclusion into practice. I have looked at how leadership and pedagogical practice as central activities within an inclusive perspective, contribute to the knowledge of how to create a better school for all students.

  7. Drama-Based Science Teaching and Its Effect on Students' Understanding of Scientific Concepts and Their Attitudes towards Science Learning

    Science.gov (United States)

    Abed, Osama H.

    2016-01-01

    This study investigated the effect of drama-based science teaching on students' understanding of scientific concepts and their attitudes towards science learning. The study also aimed to examine if there is an interaction between students' achievement level in science and drama-based instruction. The sample consisted of (87) of 7th grade students…

  8. Pre-College Deaf Students' Understanding of Fractional Concepts: What We Know and What We Do Not Know

    Science.gov (United States)

    Mousley, Keith; Kurz, Christopher

    2015-01-01

    Mathematical knowledge and skills are crucial to success in academics and the workplace. The Common Core State Standards emphasizes fraction teaching and learning in elementary school. This mixed-method study explores fraction concept understanding among 14 deaf and hard of hearing participants between the ages of 8 and 16, as quantitatively…

  9. Exploring Relations among Preservice Elementary Teachers' Ideas about Evolution, Understanding of Relevant Science Concepts, and College Science Coursework

    Science.gov (United States)

    Rice, Diana C.; Kaya, Sibel

    2012-01-01

    This study investigated the relations among preservice elementary teachers' ideas about evolution, their understanding of basic science concepts and college science coursework. Forty-two percent of 240 participants did not accept the theory of human evolution, but held inconsistent ideas about related topics, such as co-existence of humans and…

  10. Fair Miles? The concept of 'food miles' through a sustainable development lens

    Energy Technology Data Exchange (ETDEWEB)

    MacGregor, James; Vorley, Bill

    2006-10-15

    The concept of 'food miles' presents an argument to buy goods which have travelled the shortest distance from farm to table, and to discriminate against long-haul transportation, especially air-freighted goods. The long-distance transport of food is associated with additional emissions due to increased transportation coupled with greater packaging, as well as a disconnection between the public and local farming. Furthermore, 'food miles' encapsulates (and is at the vanguard of) the climate change debate in the UK. In light of growing international concern over the speed and scale of climate change, the concept of 'food miles' has captured public attention and apparently is changing some consumers' behaviour, although only around one-third of shoppers know of the concept.

  11. Not Just Another Research Paper: Understanding Global Sustainability through Digital Documentary

    Science.gov (United States)

    Green, Martha R.; Walters, Lynne Masel; Walters, Timothy; Wang, Liangyan

    2015-01-01

    This article evaluates the impact of extending a traditional written research paper into a digital documentary on students' perception and level of comprehension of a global sustainability issue. An adaptation of Moon's (1999) five-stage map of learning was used to assess the written and digital projects students submitted to a statewide…

  12. Perspectives of Education for Sustainable Development--Understanding and Introducing the Notion in Polish Educational Documents

    Science.gov (United States)

    Czapla, Malgorzata; Berlinska, Agnieszka

    2011-01-01

    The aim of this article is to present an analysis of formal educational documents in the context of the sustainable development notion. This goal was realised by an analysis of the National Curriculum Framework documents from 2002 in comparison with the newest document from 2008. In addition, seven teaching programmes were analysed. On the grounds…

  13. Understanding the purchasing behaviour of Taiwanese meat consumers in light of rising sustainability concerns

    NARCIS (Netherlands)

    Jen, Meng Yuan; Wang, Shun Mei

    2015-01-01

    Purpose-The purpose of this paper is to provide an exploratory study of how Taiwanese consumer concerns about sustainability issues relating to pork are linked to their purchasing behaviours, using the case of “warm” meat. Design/methodology/approach-The study is based on qualitative

  14. Holistic Mathematics Instruction: Interactive Problem Solving and Real Life Situations Help Learners Understand Math Concepts.

    Science.gov (United States)

    Archambeault, Betty

    1993-01-01

    Holistic math focuses on problem solving with numbers and concepts. Whole math activities for adults include shopping for groceries, eating in restaurants, buying gas, taking medicine, measuring a room, estimating servings, and compiling a family cookbook. (SK)

  15. A concept mapping approach to guide and understand dissemination and implementation.

    Science.gov (United States)

    Green, Amy E; Fettes, Danielle L; Aarons, Gregory A

    2012-10-01

    Many efforts to implement evidence-based programs do not reach their full potential or fail due to the variety of challenges inherent in dissemination and implementation. This article describes the use of concept mapping-a mixed method strategy-to study implementation of behavioral health innovations and evidence-based practice (EBP). The application of concept mapping to implementation research represents a practical and concise way to identify and quantify factors affecting implementation, develop conceptual models of implementation, target areas to address as part of implementation readiness and active implementation, and foster communication among stakeholders. Concept mapping is described and a case example is provided to illustrate its use in an implementation study. Implications for the use of concept mapping methods in both research and applied settings towards the dissemination and implementation of behavioral health services are discussed.

  16. Energy Concept Understanding of High School Students: A Cross-Grade Study

    Science.gov (United States)

    Takaoglu, Zeynep Baskan

    2018-01-01

    Energy is a difficult concept to be understood by students of all levels. Thus, the aim of the study is to determine how high school students at different levels perceive the energy and related concepts. In line with this purpose, 173 students in total of which 57 ones of the 9th grade, 94 ones of the 10th grade and 22 ones of the 11th grade…

  17. On the Concept of Force: How Understanding Its History Can Improve Physics Teaching

    Science.gov (United States)

    Coelho, Ricardo Lopes

    2010-01-01

    Some physicists have pointed out that we do not know what force is. The most common definition of force in textbooks has been criticized for more than two centuries. Many studies have shown that the concept of force is a problem for teaching. How to conceive force on the basis of the concepts and criticism of force in the works of Newton, Euler,…

  18. Public participation for sustainability and social learning. Concepts and lessons from three case studies in Europe

    Energy Technology Data Exchange (ETDEWEB)

    Garmendia, Eneko [Institute for Environmental Sciences and Technologies (ICTA), Autonomous University of Barcelona (Spain); Environmental Economics Unit, Institute for Public Economics, University of the Basque Country (Spain); Stagl, Sigrid [Department of Socio-Economics, WU Vienna, Vienna University of Economics and Business (Austria)

    2010-06-15

    Shaping change such that it avoids losing potentially useful options for future development is a challenging task in the face of complex, coevolving socio-ecological systems. Sustainability appraisal methods, which open up dialogue and options before closing down and making suggestions, pay attention to the inclusion of various and conflicting points of view and address uncertainty, are increasingly used in the science, environment and energy policy domains. The quality of the process is seen as key to high quality appraisal outcomes. Dimensions of quality include learning opportunities which are seen as ways for addressing complexity and uncertainty. Participatory sustainability appraisal methods intend to support social learning among participants. Despite high expectations, social learning processes in sustainability appraisals are poorly conceptualized and empirically understudied. This paper (1) briefly reviews theories of social learning; (2) develops a conceptual framework for the analysis; and (3) presents an empirical application of the framework by use of data obtained from three energy and natural resource management case studies around Europe. (author)

  19. From Global Sustainability to Inclusive Education: Understanding urban children's ideas about the food system

    Science.gov (United States)

    Calabrese Barton, Angela; Koch, Pamela D.; Contento, Isobel R.; Hagiwara, Sumi

    2005-08-01

    The purpose of this paper is to report our findings from a qualitative study intended to develop our understandings of: what high-poverty urban children understand and believe about food and food systems; and how such children transform and use that knowledge in their everyday lives (i.e. how do they express their scientific literacies including content understandings, process understandings, habits of mind in these content areas). This qualitative study is part of a larger study focused on understanding and developing science and nutritional literacies among high-poverty urban fourth-grade through sixth-grade students and their teachers and caregivers.

  20. Between activism and science: Grassroots concepts for sustainability coined by Environmental Justice Organizations

    NARCIS (Netherlands)

    Martínez-Alier, J.; Anguelovski, I.; Bond, P.; DelBene, D.; F. Demaria (Federico); J. Gerber (Julien-François); Greyl, L.; Hass, W.; Healy, H.; Marín-Burgos, V.; Ojo, G.U.; Porto, M.; Rijnhout, L.; Rodríguez-Labajos, B.; Spangenberg, J.; Temper, L.; Warlenius, R.; I. Yánez (Ivonne)

    2014-01-01

    textabstractAbstract In their own battles and strategy meetings since the early 1980s, EJOs (environmental justice organizations) and their networks have introduced several concepts to political ecology that have also been taken up by academics and policy makers. In this paper, we explain the

  1. The concept of sustainable prefab modular housing made of natural fiber reinforced polymer (NFRP)

    Science.gov (United States)

    Setyowati, E.; Pandelaki, E. E.

    2018-03-01

    This research aims to formulate the concept of public housing based on research results on natural fiber reinforced polymer (FRP) material which has been done in the road map of research. Research output is the public housing design and specifications of FRP made of water hyacinths and coconut fiber. Method used is descriptive review of the concept based on references and material test which consists of density, water absorption, modulus of rupture (MOR), tensile strength, absorption coefficient and Sound Transmission Loss (STL). The entire tests of material were carried out in the laboratory of materials and construction, while the acoustic tests carried out using the impedance tubes method. The test results concluded that the FRP material may have a density between 0.2481 – 0.2777 g/cm3, the absorption coefficient is average of 0.450 – 0.900, the Modulus of Elasticity is between 4061 – 15193 kg/cm2, while the average of sound transmission loss is 52 – 59 dB. Furthermore, that the concept of public housing must be able to be the embryo of the concept of environment-friendly and low emissions housing.

  2. Culture of peace and care for the Planet Earth as predictors of students’ understanding of chemistry concepts

    Directory of Open Access Journals (Sweden)

    Ngozi Okafor

    2016-05-01

    Full Text Available This study focused on how culture of peace and care for the planet earth variables predicted public coeducational secondary school students understanding of chemistry concepts in Anambra State of Nigeria. Three research questions guided the study. It was a survey and correlational research designs that involved sample of 180 drawn from six schools through a three-stage sampling procedures. Culture of Peace and Care for the Planet Earth Questionnaire (CPCPEQ and Chemistry Understanding Test (CUT were used for data collection. Their validity and reliability were determined using Cronbach alpha and Kuder-Richardson formula 20 which gave indices of r=.71 and r= 0.78 respectively. Linear regression and bivariate correlation analyses as well as One-way analysis of variance (ANOVA were used in data analysis. The results showed that for culture of peace, tolerance significantly predicted higher chemistry concepts scores while social movement significantly predicted lower concepts scores on chemistry understanding test. On care for the planet earth, adjusting thermostat significantly predicted higher scores while saving water significantly predicted lower scores on chemistry understanding test. The study recommended setting- up of Visionary Chemists for Environment and Peace Culture (VCEPC in all schools that would sensitize students on how to shun hostility, indoctrination and embracing effective methods of waste disposal. It concludes that everybody should go green, plant more trees, and promote mutual understanding, tolerance, peaceful co-existence and friendly environments as fundamental tips of peace culture and care for the planet earth that foster meaningful understanding of chemistry concepts among secondary school students.

  3. Understanding fraction concepts of Indonesian junior high school students: A case of field independent and field dependent students

    Science.gov (United States)

    Mamonto, K.; Juniati, D.; Siswono, T. Y. E.

    2018-01-01

    This study aims to describe the students’ understanding of fraction concepts. This research is descriptive with the qualitative approach. The subjects consisted of 1 Field Independent (FI) and 1 Field Dependent (FD) students. Setting subjects based on Group Embedded Figure Test (GEFT) results and meeting equivalent mathematical ability. Data obtained techniques through Task-based interview. The results show that FI students were represented a complete fractional concept and express the meaning of fractional notation with its own words.The students use of fractional concept such as the idea of dividing equally, fractional equivalents, and the relative size of the fraction to classify fractions based on certain properties, giving fractional examples and non-fractional examples, and comparing fractions. However, FD students represented declarative farctional concepts, had difficulty in giving a good meaning notation, relation between components, classifying fractions and comparing them. FD students are fixated on fraction notation and the visualization of concrete objects. Overall, these results provide a detailed picture of the understanding of fractional concepts that, FI students tend to use coherent analysis, while FD students tended to be fixated on fractional notation and visualization of concrete objects.

  4. Understanding care and feeding practices: building blocks for a sustainable intervention in India and Pakistan.

    Science.gov (United States)

    Lingam, Raghu; Gupta, Pallavi; Zafar, Shamsa; Hill, Zelee; Yousafzai, Aisha; Iyengar, Sharad; Sikander, Siham; Haq, Zaeem ul; Mehta, Shilpa; Skordis-Worrel, Jolene; Rahman, Atif; Kirkwood, Betty

    2014-01-01

    Undernutrition and inadequate stimulation both negatively influence child health and development and have a long-term impact on school attainment and income. This paper reports data from India and Pakistan looking at how families interact, play with, and feed children; their expectations of growth and development; and the perceived benefits, consequences, opportunities, and barriers of adopting recommended feeding and developmental behaviors. These data were collected as part of formative research for the Sustainable Program Incorporating Nutrition and Games (SPRING) trial. This trial aims to deliver an innovative, feasible, affordable, and sustainable intervention that can achieve delivery at a scale of known effective interventions that maximize child development, growth, and survival and improve maternal psychosocial well-being in rural India and Pakistan. © 2014 New York Academy of Sciences.

  5. Resilience as a concept for understanding family caregiving of adults with Chronic Obstructive Pulmonary Disease (COPD): an integrative review.

    Science.gov (United States)

    Rosa, Francesca; Bagnasco, Annamaria; Aleo, Giuseppe; Kendall, Sally; Sasso, Loredana

    2017-04-01

    This paper was a report of the synthesis of evidence on examining the origins and definitions of the concept of resilience, investigating its application in chronic illness management and exploring its utility as a means of understanding family caregiving of adults with Chronic Obstructive Pulmonary Disease. Resilience is a concept that is becoming relevant to understanding how individuals and families live with illness, especially long-term conditions. Caregivers of adults with Chronic Obstructive Pulmonary Disease must be able to respond to exacerbations of the condition and may themselves experience cognitive imbalances. Yet, resilience as a way of understanding family caregiving of adults with COPD is little explored. Literature review - integrative review. CINAHL, PubMed, Google Scholar and EBSCO were searched between 1989-2015. The principles of rapid evidence assessment were followed. We identified 376 relevant papers: 20 papers reported the presence of the concept of resilience in family caregivers of chronic diseases patients but only 12 papers reported the presence of the concept of resilience in caregivers of Chronic Obstructive Pulmonary Disease patients and have been included in the synthesis. The term resilience in Chronic Obstructive Pulmonary Disease caregiving is most often understood using a deficit model of health.

  6. Biological Principles and Threshold Concepts for Understanding Natural Selection. Implications for Developing Visualizations as a Pedagogic Tool

    Science.gov (United States)

    Tibell, Lena A. E.; Harms, Ute

    2017-11-01

    Modern evolutionary theory is both a central theory and an integrative framework of the life sciences. This is reflected in the common references to evolution in modern science education curricula and contexts. In fact, evolution is a core idea that is supposed to support biology learning by facilitating the organization of relevant knowledge. In addition, evolution can function as a pivotal link between concepts and highlight similarities in the complexity of biological concepts. However, empirical studies in many countries have for decades identified deficiencies in students' scientific understanding of evolution mainly focusing on natural selection. Clearly, there are major obstacles to learning natural selection, and we argue that to overcome them, it is essential to address explicitly the general abstract concepts that underlie the biological processes, e.g., randomness or probability. Hence, we propose a two-dimensional framework for analyzing and structuring teaching of natural selection. The first—purely biological—dimension embraces the three main principles variation, heredity, and selection structured in nine key concepts that form the core idea of natural selection. The second dimension encompasses four so-called thresholds, i.e., general abstract and/or non-perceptual concepts: randomness, probability, spatial scales, and temporal scales. We claim that both of these dimensions must be continuously considered, in tandem, when teaching evolution in order to allow development of a meaningful understanding of the process. Further, we suggest that making the thresholds tangible with the aid of appropriate kinds of visualizations will facilitate grasping of the threshold concepts, and thus, help learners to overcome the difficulties in understanding the central theory of life.

  7. Interpreting Sustainability for Urban Forests

    Directory of Open Access Journals (Sweden)

    Camilo Ordóñez

    2010-06-01

    Full Text Available Incisive interpretations of urban-forest sustainability are important in furthering our understanding of how to sustain the myriad values associated with urban forests. Our analysis of earlier interpretations reveals conceptual gaps. These interpretations are attached to restrictive definitions of a sustainable urban forest and limited to a rather mechanical view of maintaining the biophysical structure of trees. The probing of three conceptual domains (urban forest concepts, sustainable development, and sustainable forest management leads to a broader interpretation of urban-forest sustainability as the process of sustaining urban forest values through time and across space. We propose that values—and not services, benefits, functions or goods—is a superior concept to refer to what is to be sustained in and by an urban forest.

  8. Understanding organisational development, sustainability, and diffusion of innovations within hospitals participating in a multilevel quality collaborative

    Directory of Open Access Journals (Sweden)

    Wagner Cordula

    2011-03-01

    Full Text Available Abstract Background Between 2004 and 2008, 24 Dutch hospitals participated in a two-year multilevel quality collaborative (MQC comprised of (a a leadership programme for hospital executives, (b six quality-improvement collaboratives (QICs for healthcare professionals and other staff, and (c an internal programme organisation to help senior management monitor and coordinate team progress. The MQC aimed to stimulate the development of quality-management systems and the spread of methods to improve patient safety and logistics. The objective of this study is to describe how the first group of eight MQC hospitals sustained and disseminated improvements made and the quality methods used. Methods The approach followed by the hospitals was described using interview and questionnaire data gathered from eight programme coordinators. Results MQC hospitals followed a systematic strategy of diffusion and sustainability. Hospital quality-management systems are further developed according to a model linking plan-do-study-act cycles at the unit and hospital level. The model involves quality norms based on realised successes, performance agreements with unit heads, organisational support, monitoring, and quarterly accountability reports. Conclusions It is concluded from this study that the MQC contributed to organisational development and dissemination within participating hospitals. Organisational learning effects were demonstrated. System changes affect the context factors in the theory of organisational readiness: organisational culture, policies and procedures, past experience, organisational resources, and organisational structure. Programme coordinator responses indicate that these factors are utilised to manage spread and sustainability. Further research is needed to assess long-term effects.

  9. Understanding organisational development, sustainability, and diffusion of innovations within hospitals participating in a multilevel quality collaborative.

    Science.gov (United States)

    Dückers, Michel La; Wagner, Cordula; Vos, Leti; Groenewegen, Peter P

    2011-03-09

    Between 2004 and 2008, 24 Dutch hospitals participated in a two-year multilevel quality collaborative (MQC) comprised of (a) a leadership programme for hospital executives, (b) six quality-improvement collaboratives (QICs) for healthcare professionals and other staff, and (c) an internal programme organisation to help senior management monitor and coordinate team progress. The MQC aimed to stimulate the development of quality-management systems and the spread of methods to improve patient safety and logistics. The objective of this study is to describe how the first group of eight MQC hospitals sustained and disseminated improvements made and the quality methods used. The approach followed by the hospitals was described using interview and questionnaire data gathered from eight programme coordinators. MQC hospitals followed a systematic strategy of diffusion and sustainability. Hospital quality-management systems are further developed according to a model linking plan-do-study-act cycles at the unit and hospital level. The model involves quality norms based on realised successes, performance agreements with unit heads, organisational support, monitoring, and quarterly accountability reports. It is concluded from this study that the MQC contributed to organisational development and dissemination within participating hospitals. Organisational learning effects were demonstrated. System changes affect the context factors in the theory of organisational readiness: organisational culture, policies and procedures, past experience, organisational resources, and organisational structure. Programme coordinator responses indicate that these factors are utilised to manage spread and sustainability. Further research is needed to assess long-term effects.

  10. Guava Waste to Sustain Guava (Psidium guajava) Agroecosystem: Nutrient "Balance" Concepts.

    Science.gov (United States)

    Souza, Henrique A; Parent, Serge-Étienne; Rozane, Danilo E; Amorim, Daniel A; Modesto, Viviane C; Natale, William; Parent, Leon E

    2016-01-01

    The Brazilian guava processing industry generates 5.5 M Mg guava waste year(-1) that could be recycled sustainably in guava agro-ecosystems as slow-release fertilizer. Our objectives were to elaborate nutrient budgets and to diagnose soil, foliar, and fruit nutrient balances in guava orchards fertilized with guava waste. We hypothesized that (1) guava waste are balanced fertilizer sources that can sustain crop yield and soil nutrient stocks, and (2) guava agroecosystems remain productive within narrow ranges of nutrient balances. A 6-year experiment was conducted in 8-year old guava orchard applying 0-9-18-27-36 Mg ha(-1) guava waste (dry mass basis) and the locally recommended mineral fertilization. Nutrient budgets were compiled as balance sheets. Foliar and fruit nutrient balances were computed as isometric log ratios to avoid data redundancy or resonance due to nutrient interactions and the closure to measurement unit. The N, P, and several other nutrients were applied in excess of crop removal while K was in deficit whatever the guava waste treatment. The foliar diagnostic accuracy reached 93% using isometric log ratios and knn classification, generating reliable foliar nutrient and concentration ranges at high yield level. The plant mined the soil K reserves without any significant effect on fruit yield and foliar nutrient balances involving K. High guava productivity can be reached at lower soil test K and P values than thought before. Parsimonious dosage of fresh guava waste should be supplemented with mineral K fertilizers to recycle guava waste sustainably in guava agroecosystems. Brazilian growers can benefit from this research by lowering soil test P and K threshold values to avoid over-fertilization and using fresh guava waste supplemented with mineral fertilizers, especially K. Because yield was negatively correlated with fruit acidity and Brix index, balanced plant nutrition and fertilization diagnosis will have to consider not only fruit yield

  11. Guava Waste to Sustain Guava (Psidium guajava) Agroecosystem: Nutrient “Balance” Concepts

    Science.gov (United States)

    Souza, Henrique A.; Parent, Serge-Étienne; Rozane, Danilo E.; Amorim, Daniel A.; Modesto, Viviane C.; Natale, William; Parent, Leon E.

    2016-01-01

    The Brazilian guava processing industry generates 5.5 M Mg guava waste year−1 that could be recycled sustainably in guava agro-ecosystems as slow-release fertilizer. Our objectives were to elaborate nutrient budgets and to diagnose soil, foliar, and fruit nutrient balances in guava orchards fertilized with guava waste. We hypothesized that (1) guava waste are balanced fertilizer sources that can sustain crop yield and soil nutrient stocks, and (2) guava agroecosystems remain productive within narrow ranges of nutrient balances. A 6-year experiment was conducted in 8-year old guava orchard applying 0–9–18–27–36 Mg ha−1 guava waste (dry mass basis) and the locally recommended mineral fertilization. Nutrient budgets were compiled as balance sheets. Foliar and fruit nutrient balances were computed as isometric log ratios to avoid data redundancy or resonance due to nutrient interactions and the closure to measurement unit. The N, P, and several other nutrients were applied in excess of crop removal while K was in deficit whatever the guava waste treatment. The foliar diagnostic accuracy reached 93% using isometric log ratios and knn classification, generating reliable foliar nutrient and concentration ranges at high yield level. The plant mined the soil K reserves without any significant effect on fruit yield and foliar nutrient balances involving K. High guava productivity can be reached at lower soil test K and P values than thought before. Parsimonious dosage of fresh guava waste should be supplemented with mineral K fertilizers to recycle guava waste sustainably in guava agroecosystems. Brazilian growers can benefit from this research by lowering soil test P and K threshold values to avoid over-fertilization and using fresh guava waste supplemented with mineral fertilizers, especially K. Because yield was negatively correlated with fruit acidity and Brix index, balanced plant nutrition and fertilization diagnosis will have to consider not only fruit

  12. THE CONCEPTION OF SUSTAINABLE DEVELOPMENT AS A NEW PARADIGM OF SOCIAL PROGRESS

    Directory of Open Access Journals (Sweden)

    N. A. Kazhuro

    2016-01-01

    Full Text Available Modern economic growth, accompanied by a stratification of society into rich and poor, contributes to the prosperity of the wealth’s cult and power of that wealth. It leads to wasteful use of natural resources, doesn’t solve and can’t solve the problem of mass poverty. In 1992, in Rio de Janeiro held the OUN Conference on environment and development, dedicated to the development of strategies for sustainable environmentally sound economic development of the world civilization. It stated the impossibility of developing countries’ movement in the way that came to their welfare developed countries. This model is recognized as a leading disaster and therefore proclaimed the need to move the world community on a sustainable path. Principles of sustainable development suggest that the current generation of people in the world should meet their needs so that in the age of our children and grandchildren ran out of resources too. So live allowing yourself to the constant growth of consumption is no longer possible today. The conference in Rio de Janeiro marked the beginning of a conscious turn of human civilization on a new path of development, in which a person restrain its consumer selfishness and try to live in harmony with Nature. Its over-exploitation today threatens retaliation, disastrous for humanity reactions. The essence of the global problem is how to ensure progress in solving a common problem based on two fundamental positions – development and the environment. It is believed that the ultimate aim of the world’s community development should be not an economic growth by itself, not the pace and size of the material wealths’ accumulation but the man himself. With this approach the production’s goal should be not in uncontrolled growth of the social product in order to satisfy the constantly growing people’s needs but to ensure rational (reasonable, vitally important material and spiritual man’s needs.

  13. Guava waste to sustain guava (Psidium guajava agroecosystem: nutrient "balance" concepts

    Directory of Open Access Journals (Sweden)

    Henrique Antunes de Souza

    2016-08-01

    Full Text Available The Brazilian guava processing industry generates 5.5 M Mg guava waste yr-1 that could be recycled sustainably in guava agro-ecosystems as slow-release fertilizer. Our objectives were to elaborate nutrient budgets and to diagnose soil, foliar and fruit nutrient balances in guava orchards fertilized with guava waste. We hypothesized that (1 guava waste are balanced fertilizer sources that can sustain crop yield and soil nutrient stocks, and (2 guava agroecosystems remain productive within narrow ranges of nutrient balances. A 6-yr experiment was conducted in 8-yr old guava orchard applying 0-9-18-27-36 Mg ha-1 guava waste (dry mass basis and the locally recommended mineral fertilization. Nutrient budgets were compiled as balance sheets. Foliar and fruit nutrient balances were computed as isometric log ratios to avoid data redundancy or resonance due to nutrient interactions and closure to measurement unit. The N, P and several other nutrients were applied in excess of crop removal while K was in deficit whatever the fertilizer treatment. The foliar diagnostic accuracy of reached 93 % using isometric log ratios and knn classification, generating reliable foliar nutrient and concentration ranges at high yield level. The plant mined the soil K reserves without any significant effect on fruit yield and foliar nutrient balances involving K. High guava productivity can be reached at lower soil test K and P values than thought before. Parsimonious dosage of fresh guava waste should be supplemented with mineral K fertilizers to recycle guava waste sustainably in guava agroecosystems. Brazilian growers can benefit from this research by lowering soil test P and K threshold values to avoid over-fertilization and using fresh guava waste supplemented with mineral fertilizers, especially K. Because yield was negatively correlated with fruit acidity and Brix index, balanced plant nutrition and fertilization diagnosis will have to consider not only fruit yield

  14. How to assess the Environmental State of EU regions with the global concept of sustainability?

    OpenAIRE

    Blanc, Isabelle; Friot, Damien; Margni, Manuele; Jolliet, Olivier

    2004-01-01

    Processing of the articles for this web presentation has been supported within the European Commission's 7th framework programme in the project ICT-ENSURE, Literature Information System. http://www.iai.fzk.de/Fachgruppe/GI/litArchive/EnviroInfo/2004Geneva/Volume1-Sh_ring_EnviroInfo_2004/How_to_assess_the_Environmental_State_of_EU_region--a1777.html; International audience; EPSILON project is aiming at assessing sustainability of all European regions to provide a quantitative tool for policy d...

  15. Assessment of the potential of innovative fast reactor (FR) concepts in relation to sustainable development requirements

    International Nuclear Information System (INIS)

    Pilarski, S.

    2008-01-01

    This thesis investigates innovative fast reactors (FRs) and the possibility of using different liquid metal coolants (Pb, Pb- 7 Li, Pb-Mg). The comparison is made for the requirements of 'fourth generation' reactors, as defined in the framework of the Generation IV international forum, and in particular reactor safety. More specifically, two important safety criteria are studied in detail: the issue of the void reactivity effect, which is an inherent drawback of FRs; and the behaviour of the reactor during unprotected transients. The potential of these innovative coolants is investigated through simulations of their use in a concept similar to the Russian project BREST-300. Two options were considered for the fuel: an oxide fuel, which is a mature technology, and an innovative, denser, nitride fuel. A study at low power was complemented by investigations of industrial size cores. A concept similar to the SFR reactor (Sodium Fast Reactor) is taken as the state-of-the-art reference point. These concepts were initially dimensioned using parametric studies covering the main core geometry options, taking into account both neutronics and thermal-hydraulics aspects in steady-state conditions. Furthermore, we propose a systematic approach for evaluating the tolerance to the main accident types (loss of primary flow, transient over-power, loss of heat sink, and over-cooling) based on a quasi-static reactivity approach complemented by the use of a dynamics code. In addition to these studies based on the U-Pu fuel cycle, we show the advantage of using the Th-U fuel cycle as an effective way of reducing the void effect for these innovative FR concepts. (author)

  16. Sustainability Education: Researching Practice in Primary Schools

    Science.gov (United States)

    Green, Monica; Somerville, Margaret

    2015-01-01

    Many teachers are keen to implement sustainability education in primary schools but are lacking the confidence, skills and knowledge to do so. Teachers report that they do not understand the concept and cannot integrate sustainability into an already overcrowded curriculum. Identifying how teachers successfully integrate sustainability education…

  17. Sustainability concept for a newly built urban area in Malmö, Sweden.

    Science.gov (United States)

    Gruvberger, C; Aspegren, H; Andersson, B; la Cour Jansen, J

    2003-01-01

    National goals regarding sustainable development from the Swedish government were decisive in the planning process when the newly built city district Western Harbour was established in the city of Malmö, Sweden. A systems analysis was used as a tool for evaluating different collection and treatment systems. This type of analysis does not include more subjective factors such as acceptance of organic fertilizers based on human waste and user acceptance of collection schemes. These aspects, however, will often determine the success of a technical solution. When the system for collection and treatment of old organic waste and wastewater was designed, both subjective and objective factors were considered. This meant that a centralised solution for wastewater treatment was selected. In order to facilitate a more sustainable solution for sludge management a treatment process with recovery of phosphorus will have to be introduced. Organic waste is sorted out and treated in an anaerobic digestion process. Source sorting of solid organic waste has been difficult to implement in Sweden due to inadequate sorting discipline. As a consequence two relatively new systems are tested in the area. A comprehensive evaluation will be carried out during a period of two years.

  18. An Assessment of Students' Understanding of Ecosystem Concepts: Conflating Ecological Systems and Cycles

    Science.gov (United States)

    Jordan, Rebecca; Gray, Steven; Demeter, Marylee; Lui, Lei; Hmelo-Silver, Cindy E.

    2009-01-01

    Teaching ecological concepts in schools is important in promoting natural science and environmental education for young learners. Developing educational programs is difficult, however, because of complicated ecological processes operating on multiple levels, the unlimited nature of potential system interactions (given the openness of systems), and…

  19. Facilitating Student Understanding of Buffering by an Integration of Mathematics and Chemical Concepts

    Science.gov (United States)

    Curtright, Robert; Emry, Randall; Heaton, Ruth M.; Markwell, John

    2004-01-01

    We describe a simple undergraduate exercise involving the titration of a weak acid by a strong base using a pH meter and a micropipette. Students then use their data and carry out graphical analyses with a spreadsheet. The analyses involve using mathematical concepts such as first-derivative and semi-log plots and provide an opportunity for…

  20. Towards Understanding EFL Teachers' Conceptions of Research: Findings from Argentina

    Science.gov (United States)

    Banegas, Darío Luis

    2018-01-01

    This paper investigates the conceptions of research held by English as a foreign language teachers in Argentina. Quantitative data from 622 participants from an online questionnaire were followed by qualitative data from online interviews with 40 of those participants. Results show that the teachers conceptualised research through conventional…

  1. How Does Technology-Enabled Active Learning Affect Undergraduate Students' Understanding of Electromagnetism Concepts?

    Science.gov (United States)

    Dori, Yehudit Judy; Belcher, John

    2005-01-01

    Educational technology supports meaningful learning and enables the presentation of spatial and dynamic images, which portray relationships among complex concepts. The Technology-Enabled Active Learning (TEAL) Project at the Massachusetts Institute of Technology (MIT) involves media-rich software for simulation and visualization in freshman…

  2. Concepts of Access for People with Learning Difficulties: Towards a Shared Understanding

    Science.gov (United States)

    Nind, Melanie; Seale, Jane

    2009-01-01

    This article explores both the process and outcomes of a seminar series on the concept of access for people with learning difficulties. The seminar topics chosen to foster dialogue across professional and disciplinary boundaries included access to information, education, employment, the law, health, leisure, community, past histories and future…

  3. Improving Student Understanding of Lipids Concepts in a Biochemistry Course Using Test-Enhanced Learning

    Science.gov (United States)

    Horn, Savannah; Hernick, Marcy

    2015-01-01

    Test-enhanced learning has successfully been used as a means to enhance learning and promote knowledge retention in students. We have examined whether this approach could be used in a biochemistry course to enhance student learning about lipids-related concepts. Students were provided access to two optional learning modules with questions related…

  4. The Effect of the Use of Number Lines Representations on Student Understanding of Basic Function Concepts.

    Science.gov (United States)

    Olsen, James R.

    Researchers and educators are calling for increased use of technology and attention to function concepts in school mathematics. Students often have considerable difficulty gleaning pointwise and global information from Cartesian (R squared) representations of functions, whether they are hand- or machine-produced. Described here is an interactive…

  5. Students' Understandings of Acid Strength: How Meaningful Is Reliability When Measuring Alternative Conceptions

    Science.gov (United States)

    Bretz, Stacey Lowery; McClary, LaKeisha

    2015-01-01

    Most organic chemistry reactions occur by a mechanism that includes acid-base chemistry, so it is important that students develop and learn to use correct conceptions of acids and acid strength. Recent studies have described undergraduate organic chemistry students' cognitive resources related to the Brønsted-Lowry acid model and the Lewis acid…

  6. High School Students' Understanding of Acid-Base Concepts: An Ongoing Challenge for Teachers

    Science.gov (United States)

    Damanhuri, Muhd Ibrahim Muhamad; Treagust, David F.; Won, Mihye; Chandrasegaran, A. L.

    2016-01-01

    Using a quantitative case study design, the "Acids-Bases Chemistry Achievement Test" ("ABCAT") was developed to evaluate the extent to which students in Malaysian secondary schools achieved the intended curriculum on acid-base concepts. Responses were obtained from 260 Form 5 (Grade 11) students from five schools to initially…

  7. Sustainable Marketing

    NARCIS (Netherlands)

    Dam, van Y.K.

    2017-01-01

    In this article, three different conceptions of sustainable marketing are discussed and compared. These different conceptions are referred to as social, green, and critical sustainable marketing. Social sustainable marketing follows the logic of demand-driven marketing management and places the

  8. Reshaping Construction Management for Sustainability and Resource Efficiency: Implementation of LeanBIM Concept in Construction

    OpenAIRE

    Mohamed, Moataz Samy Elsaid

    2015-01-01

    Construction is considered to be a high waste generating industry, in spite of its importance for human lives and economies. A lot of researches have been conducted to find out new ways to improve the way construction projects are managed. The main goals of these researches were to reduce the cost and time for projects as well as increase the quality of the final product. In 1990’s Lean Construction concept has been founded as an alternative for the conventional construction project manage...

  9. Time to propagate green building construction concept for saving precious resources sustainable development

    International Nuclear Information System (INIS)

    Ali, Z.

    2005-01-01

    At present, we are constructing houses and buildings without giving any consideration to consumption of resources at the time of construction and consumption of resources for the use of such houses or buildings. ; Although green is our color but we are doing little about green building. Time has now come to propagate Green Building Construction Concepts in order to save our precious resources. The paper deals with dire need of awareness about conservation of water, conservation of energy, use of local materials, use of natural materials, etc. (author)

  10. Optimized phases for reactor dismantling – an efficient and sustainable concept

    International Nuclear Information System (INIS)

    Krüger, S.; Winter, J.

    2013-01-01

    D&D projects are driven by costs, to implement an optimization process from the very beginning is key. Optimized strategy and sequencing of the dismantling (hot to cold) will provide serious economical savings . Larger dismantling packages will reduce interfaces and ease the coordination efforts on site. Early usage of mobile systems will ease the large-scale release for dismantling Social transition has to be addressed with priority and to be planned at an early phase in the D&D planning Concept, Planning & Project Management will influence the success of the project much more than the used technique

  11. Chinese Grade Eight Students' Understanding about the Concept of Global Warming

    Science.gov (United States)

    Lin, Jing

    2017-01-01

    China is one of the world's biggest greenhouse gas emitters. Chinese students' awareness and understanding about global warming have a significant impact on the future of mankind. This study, as an initial research of this kind in Mainland China, uses clinical interviews to survey 37 grade eight students on their understanding about global…

  12. Policy and governance for sustainable consumption at the crossroads of theories and concepts

    DEFF Research Database (Denmark)

    Keller, Margit; Halkier, Bente; Wilska, Terhi-Anna

    2016-01-01

    This introductory article of the special issue compares different conceptual underpinnings of efforts to make the everyday activities of consumers more sustainable. As social practice theory (SPT) is the main theoretical foundation of the articles collected here, we outline its strengths...... and limitations, when compared with the dominant individual-oriented behaviour change approach, and we focus on theories of planned behaviour, social marketing as well as ‘choice architecture’, based on behavioural economics. This article analyses SPT's usefulness, particularly from the applied point of view...... to the need for more focus on consumers' workplace practices alongside domestic practices and analysis of and intervention in the material environments and objects in which social practices are embedded. Finally, they are concerned with the identification of moments of transition in consumers' lives...

  13. Advancing understanding of the sustainability of lay health advisor (LHA) programs for African-American women in community settings.

    Science.gov (United States)

    Shelton, Rachel C; Charles, Thana-Ashley; Dunston, Sheba King; Jandorf, Lina; Erwin, Deborah O

    2017-09-01

    Lay health advisor (LHA) programs have made strong contributions towards the elimination of health disparities and are increasingly being implemented to promote health and prevent disease. Developed in collaboration with African-American survivors, the National Witness Project (NWP) is an evidence-based, community-led LHA program that improves cancer screening among African-American women. NWP has been successfully disseminated, replicated, and implemented nationally in over 40 sites in 22 states in diverse community settings, reaching over 15,000 women annually. We sought to advance understanding of barriers and facilitators to the long-term implementation and sustainability of LHA programs in community settings from the viewpoint of the LHAs, as well as the broader impact of the program on African-American communities and LHAs. In the context of a mixed-methods study, in-depth telephone interviews were conducted among 76 African-American LHAs at eight NWP sites at baseline and 12-18 months later, between 2010 and 2013. Qualitative data provides insight into inner and outer contextual factors (e.g., community partnerships, site leadership, funding), implementation processes (e.g., training), as well as characteristics of the intervention (e.g., perceived need and fit in African-American community) and LHAs (e.g., motivations, burnout) that are perceived to impact the continued implementation and sustainability of NWP. Factors at the contextual levels and related to motivations of LHAs are critical to the sustainability of LHA programs. We discuss how findings are used to inform (1) the development of the LHA Sustainability Framework and (2) strategies to support the continued implementation and sustainability of evidence-based LHA interventions in community settings.

  14. Consumers in a Sustainable Food Supply Chain (COSUS): Understanding Consumer Behavior to Encourage Food Waste Reduction

    Science.gov (United States)

    Rohm, Harald; Oostindjer, Marije; Aschemann-Witzel, Jessica; Symmank, Claudia; L. Almli, Valérie; de Hooge, Ilona E.; Normann, Anne; Karantininis, Kostas

    2017-01-01

    Consumers are directly and indirectly responsible for a significant fraction of food waste which, for a large part, could be avoided if they were willing to accept food that is suboptimal, i.e., food that deviates in sensory characteristics (odd shape, discoloration), or that has a best-before date which is approaching or has passed, but that is still perfectly fine to eat. The choice to accept or discard suboptimal food is taken either before or after purchase (hence, in the retail store or in the household). The aim of the European research project COSUS (Consumers in a sustainable food supply chain) was to increase consumer acceptance of suboptimal food, before and after purchase, by implementing targeted strategies that are based on consumer insights, and that are feasible for and acceptable by the food sector. To reach this aim, different methodological approaches were applied to analyze this issue, to experiment with different aspects, and to test the resulting interventions. Each of these approaches was undertaken by competent consortium partners from Denmark, Germany, Norway, Sweden and The Netherlands. The project finally provides validated strategies to promote the distribution and consumption of suboptimal foods, thereby improving resource efficiency in the food chain and contributing to a more sustainable food supply. PMID:29186883

  15. Consumers in a Sustainable Food Supply Chain (COSUS: Understanding Consumer Behavior to Encourage Food Waste Reduction

    Directory of Open Access Journals (Sweden)

    Harald Rohm

    2017-11-01

    Full Text Available Consumers are directly and indirectly responsible for a significant fraction of food waste which, for a large part, could be avoided if they were willing to accept food that is suboptimal, i.e., food that deviates in sensory characteristics (odd shape, discoloration, or that has a best-before date which is approaching or has passed, but that is still perfectly fine to eat. The choice to accept or discard suboptimal food is taken either before or after purchase (hence, in the retail store or in the household. The aim of the European research project COSUS (Consumers in a sustainable food supply chain was to increase consumer acceptance of suboptimal food, before and after purchase, by implementing targeted strategies that are based on consumer insights, and that are feasible for and acceptable by the food sector. To reach this aim, different methodological approaches were applied to analyze this issue, to experiment with different aspects, and to test the resulting interventions. Each of these approaches was undertaken by competent consortium partners from Denmark, Germany, Norway, Sweden and The Netherlands. The project finally provides validated strategies to promote the distribution and consumption of suboptimal foods, thereby improving resource efficiency in the food chain and contributing to a more sustainable food supply.

  16. Consumers in a Sustainable Food Supply Chain (COSUS): Understanding Consumer Behavior to Encourage Food Waste Reduction.

    Science.gov (United States)

    Rohm, Harald; Oostindjer, Marije; Aschemann-Witzel, Jessica; Symmank, Claudia; L Almli, Valérie; de Hooge, Ilona E; Normann, Anne; Karantininis, Kostas

    2017-11-27

    Consumers are directly and indirectly responsible for a significant fraction of food waste which, for a large part, could be avoided if they were willing to accept food that is suboptimal, i.e., food that deviates in sensory characteristics (odd shape, discoloration), or that has a best-before date which is approaching or has passed, but that is still perfectly fine to eat. The choice to accept or discard suboptimal food is taken either before or after purchase (hence, in the retail store or in the household). The aim of the European research project COSUS (Consumers in a sustainable food supply chain) was to increase consumer acceptance of suboptimal food, before and after purchase, by implementing targeted strategies that are based on consumer insights, and that are feasible for and acceptable by the food sector. To reach this aim, different methodological approaches were applied to analyze this issue, to experiment with different aspects, and to test the resulting interventions. Each of these approaches was undertaken by competent consortium partners from Denmark, Germany, Norway, Sweden and The Netherlands. The project finally provides validated strategies to promote the distribution and consumption of suboptimal foods, thereby improving resource efficiency in the food chain and contributing to a more sustainable food supply.

  17. The AREVA integrated and sustainable concept of fatigue design, monitoring and re-assessment

    International Nuclear Information System (INIS)

    Begholz, Steffen; Rudolph, Juergen

    2008-01-01

    Prevention of fatigue damage of components is an important topic with respect to safety and availability of a nuclear power plant. The issue of fatigue monitoring should be of primary interest throughout service life. Based on the changing general framework, i.e. planning of new plants with a projected lifetime of 60 years and the lifetime extension of existing plants AREVA is focussing R and D activities on improved detection methods. Primary objective is the realistic determination of the actual usage level of reactor components. The fatigue monitoring is supposed to enhance cost optimization and minimize inspection frequency. Fatigue monitoring should be implemented at the beginning of start-up period since the high loads during this phase introduce a significant contribution to the usage level. AREVA recommends the use of the FAMOS (fatigue monitoring system) for the assessment of the realistic transient loads and the data processing with respect to fatigue evaluation. Every 10 years the actual usage levels should be evaluated in detail according to the standards, based on measured load data. The fatigue evaluation is usually performed using finite element analyses taking into account the transient temperature loads at the component, dependent on the component demands based on elastic or elasto-plastic material behaviour. Potential problematic areas can be identified reliably. Direct measurement of fatigue damage, refined analysis concepts (short crack fracture mechanics, and ratcheting simulation) are supposed to support the concept [de

  18. Addressing pre-service teachers' understandings and difficulties with some core concepts in the special theory of relativity

    International Nuclear Information System (INIS)

    Selcuk, Gamze Sezgin

    2011-01-01

    The aim of this study is to investigate pre-service teachers' understanding of and difficulties with some core concepts in the special theory of relativity. The pre-service teachers (n = 185) from the Departments of Physics Education and Elementary Science Education at Dokuz Eylul University (in Turkey) participated. Both quantitative and qualitative research methods were used in this study. Students' understanding of and difficulties with core elements (time, length, mass and density) were tested using a paper-and-pencil questionnaire (including four questions) and in-depth interviews after the instruction of related modern physics topics. The analyses of the collected data were based on quantitative and qualitative techniques. The results indicate that pre-service teachers at different academic levels have specific and considerable difficulties with proper time, time dilation, proper length, mass and relativistic density concepts. In this paper, the conclusions of the study and implications for physics teaching are discussed.

  19. Addressing pre-service teachers' understandings and difficulties with some core concepts in the special theory of relativity

    Energy Technology Data Exchange (ETDEWEB)

    Selcuk, Gamze Sezgin, E-mail: gamze.sezgin@deu.edu.t [Dokuz Eylul University, Department of Secondary Science and Mathematics Education Izmir, 35160 (Turkey)

    2011-01-15

    The aim of this study is to investigate pre-service teachers' understanding of and difficulties with some core concepts in the special theory of relativity. The pre-service teachers (n = 185) from the Departments of Physics Education and Elementary Science Education at Dokuz Eylul University (in Turkey) participated. Both quantitative and qualitative research methods were used in this study. Students' understanding of and difficulties with core elements (time, length, mass and density) were tested using a paper-and-pencil questionnaire (including four questions) and in-depth interviews after the instruction of related modern physics topics. The analyses of the collected data were based on quantitative and qualitative techniques. The results indicate that pre-service teachers at different academic levels have specific and considerable difficulties with proper time, time dilation, proper length, mass and relativistic density concepts. In this paper, the conclusions of the study and implications for physics teaching are discussed.

  20. Using example generation to explore students' understanding of the concepts of linear dependence/independence in linear algebra

    Science.gov (United States)

    Aydin, Sinan

    2014-08-01

    Linear algebra is a basic mathematical subject taught in mathematics and science depar-tments of universities. The teaching and learning of this course has always been difficult. This study aims to contribute to the research in linear algebra education, focusing on linear dependence and independence concepts. This was done by introducing student-generated examples regarding the concepts. With the help of these examples, we have analysed students' understanding of linear dependence/independence and determined the effect of the example-generation process on student understanding of linear algebra. In addition, we identified some difficulties that were experienced by students learning the concepts of linear dependence/independence. In this study, APOS (action-process-object-schema) theory is the main tool utilized to explain students' written responses. It was also used with regard to the interview questions that were posed to students with the purpose of identifying possible difficulties with linear dependence/independence and observing the adequacy of the relations that students might form between different elements of the genetic decomposition of linear dependence/independence concepts. The findings of this study confirmed that many students do not have appropriate mental structures at object and schema levels. Moreover, in order to ensure the success of such exercises, students must be encouraged to review and validate their responses to the example requests.

  1. Cloud-based Virtual Reality Integrated Automatic Presentation Script for Understanding Urban Design Concepts in the Consensus Process

    OpenAIRE

    Yuanyi, Zhang; Zhenjiang, Shen; Kai, Wang; Fumihiko, Kobayashi; Xinyi, Lin

    2017-01-01

    In recent years, designers have used various types of tools, such as public Participation GIS (PP GIS) and Virtual Reality Modelling Language (VRML), to improve urban design concept understanding in the consensus process. However, these tools were frequently criticized as being too complex for the majority of potential users. Moreover, due to the limitations of data compression, hardware performance, network bandwidth and costs of current virtual reality platforms, the users need to gather in...

  2. TOWARDS AN UNDERSTANDING OF EXPERIENCE CONCEPT DEVELOPMENT IN TOURISM SERVICE DESIGN (RIKON Group)

    OpenAIRE

    Dalton, Roseline; Lynch, Patrick; Lally, Anne Marie

    2009-01-01

    Despite the increasing importance placed on the delivery of memorable experiences in the tourism sector, there have been only limited attempts to comprehensively detail how experiences can be successfully conceptualised in practice. Based on a critical literature review of both experience and service concept development theory in conjunction with and the findings from case research, this paper will make a unique contribution to a very significant gap in experience design literature by present...

  3. The influence of learning aids on understanding art concepts in elementary school art education

    OpenAIRE

    Erčulj, Anamarija

    2016-01-01

    The goal of the master’s thesis is to determine the influence of teaching means and materials on both successful learning of different art concepts and the ability to depict motifs by using different art materials. The theoretical part of the master degree describes both the analysis of special teaching means and their adaptation for certain parts of arts and design lessons. The input hypothesis claims that the usage of ICT (such as digital animation, Internet, social networks ...

  4. Revisiting Understanding of The Whistleblowing Concept In The Context of Indonesia

    Directory of Open Access Journals (Sweden)

    Ilham Nurhidayat

    2017-09-01

    Full Text Available The conduct of this study came in the backdrop of thinking of the need for opening a discussion for a more comprehensive and contextual concept of whistleblowing  for Indonesia from the vantage point of existing theoretical perspectives, regulations and practices. There is a lot of misunderstanding and bias about the concept of whistleblowing in public and private organizations in Indonesia. This study is largely based on previous literature and observation of the implementation of whistleblowing system (WBS in several institutions that the author considered credible enough to be best practices. The study used descriptive qualitative approach and used various reference sources that were drawn from library research. This research has produced several formulations. First, the synonym or equivalent phrase in the Indonesian language for the term whistleblower is Pengungkap dugaan kecurangan, (revealer of alleged fraud and Pengungkap dugaan pelanggaraan (revealer of alleged violation or Pengungkap dugaan perbuatan tidak benar (wrongdoing (revealer of alleged wrongdoing. Secondly, the most appropriate equivalence to the phrase whistleblowing system (WBS in the context of Indonesia is “Sistem Pengungkapan Dugaan Pelanggaran” (alleged violation disclosure system. Third, the object of the report or complaints of whistleblowing (wrongdoing is classifying into seventeen types of behavior that are in turn categorized into seven groups. WBS development and implementation in a number of government and private sector institutions emphasize seven key points. Research findings fill a mainstream research gap on whistleblowing in  Indonesia, which has for long been plagued by misunderstanding  between  WBS and  complaints handling system that is evident in several institutions and  government agencies in Indonesia. The expectation is that research results will make some contribution to government policy making in the realm of whistleblowing system by

  5. The concept of sustainable regional development – institutional aspects, policies and prospects

    Directory of Open Access Journals (Sweden)

    Radislav Jovovic

    2017-05-01

    Full Text Available Growing market globalization, increasing global competition, more complex products results in application of new technologies, methods and business processes – due to the abovementioned tendencies novel supply chain strategies (Lean, Agile and Leagile Supply Chains are established. In this study these supply chain concepts are being described and compared. Virtual enterprise is a temporary alliance of enterprises that come together to share their skills, core competencies, costs and resources in order to better respond to rapidly changing market environment and dynamic customer demands. Economic and social benefits and effects of virtual enterprises for customers and production companies and service providers are also described. Optimization software has been developed for optimal formation of virtual enterprise networks and is also introduced in this study. The aim of this software application is to define virtual enterprise as the optimal combination of supply chain members.

  6. Jakarta socio-cultural ecology: a sustainable architecture concept in urban neighbourhood

    Science.gov (United States)

    Wijaksono, Sigit; Sasmoko; Indrianti, Y.; Widhoyoko, SA

    2017-12-01

    As a metropolitan city with densely populated and fast residential development Jakarta should be able to implement a concept that is Jakarta socio-cultural ecology Architecture as the basis of settlement development. The concept of Jakarta socio-cultural ecology architecture is characterized by residential development capabilities that reflect and express the indigenous culture, the settlements built by linking the social and economic activities of the people of Jakarta and the settlements built by maintaining the building with the value of existing heritage. The objectives of this research are 1) to find a relevant construct to housing condition in Jakarta which then called Jakarta socio-cultural ecology, and 2) to see the tendency of complex condition of Jakarta socio-cultural ecology settlement. This research uses Neuroresearch method, which is one of mix-method research method as a mixture research method between qualitative research (exploration) and quantitative research method (explanatory and confirmatory). The population of research as well as unit analysis are all settlements in Jakarta. Sampling technique using probability sampling that is with multistage sampling. The results show that nowadays the Jakarta residential complex tends to lead to socio-cultural ecology and rather reflects and expresses the indigenous culture, the residential complex in Jakarta tends to form the building has been linked fully with the social and economic activities of Jakarta society but tends to occasionally maintain buildings with existing heritage values. This study also found that indigenous culture is a significant determinant of the formation of the condition of Jakarta socio-cultural ecology.

  7. Surface-wave sustained plasmas: Toward a better understanding of RF and microwave discharges

    Energy Technology Data Exchange (ETDEWEB)

    Moisan, M. [Groupe de physique des plasmas, Universite de Montreal, Montreal H3C 3J7, Quebec (Canada); Ferreira, C.M. [Centro de Electrodinamica da Universidade Tecnica de Lisboa, Instituto Superior Tecnico, Lisboa 1000 (Portugal); Hubert, J.; Margot, J. [Groupe de physique des plasmas, Universite de Montreal, Montreal H3C 3J7, Quebec (Canada); Zakrzewski, Z. [Polish Academy of Sciences, IMP-PAN, 80-952 Gdansk (Poland)

    1996-03-01

    An approach is presented that unifies the description of the various existing RF and microwave discharges. It is based on two essential facts: (i) it is not the spatial distribution of the high frequency (HF) electric field intensity but its spatial average that plays in the power transfer to the plasma; (ii) the power {theta} required to maintain an electron in the discharge is governed by charged particle losses, which are independent of the HF E-field. This enables one to model separately the maintenance processes of HF discharges and the electrodynamic properties of HF circuits sustaining the plasma, although the discharge and the HF field are actually coupled self-consistently. The influence of the field frequency on the properties of these plasmas is also summarized. {copyright} {ital 1996 American Institute of Physics.}

  8. Digestion of sludge and organic waste in the sustainability concept for Malmoe, Sweden

    Energy Technology Data Exchange (ETDEWEB)

    Jansen, Jes la Cour; Gruvberger, Christopher; Hanner, Niklas; Aspegren, Henrik; Svaerd, Aasa

    2003-07-01

    Anaerobic digestion of sludge has been part of the treatment plant in Malmoe for many years and several projects on optimisation of the digestion process have been undertaken in full scale as well as in pilot scale. In order to facilitate a more sustainable solution in the future for waste management, solid waste organic waste is sorted out from households for anaerobic treatment in a newly built city district. The system for treatment of the waste is integrated in a centralised solution located at the existing wastewater treatment plant. A new extension of the digester capacity enables separate as well as co-digestion of sludge together with urban organic waste from households, industry, restaurants, big kitchens, food stores, supermarkets, green markets etc. for biogas production and production of fertiliser. Collection and pre-treatment of different types of waste are in progress together with examination of biogas potential for different types of organic waste. Collection of household waste as well as anaerobic digestion in laboratory and pilot scale has been performed during the last year. It is demonstrated that organic household waste can be digested separately or in combination with sludge. In the latter case a higher biogas yield is found than should be expected from digestion of the two materials separately. Household waste from a system based on collection of organic waste from grinders could be digested at mesophilic conditions whereas digestion failed at thermophilic conditions.

  9. Sustainability Concept in Decision-Making: Carbon Tax Consideration for Joint Product Mix Decision

    Directory of Open Access Journals (Sweden)

    Wen-Hsien Tsai

    2016-11-01

    Full Text Available Carbon emissions are receiving greater scrutiny in many countries due to international forces to reduce anthropogenic global climate change. Carbon taxation is one of the most common carbon emission regulation policies, and companies must incorporate it into their production and pricing decisions. Activity-based costing (ABC and the theory of constraints (TOC have been applied to solve product mix problems; however, a challenging aspect of the product mix problem involves evaluating joint manufactured products, while reducing carbon emissions and environmental pollution to fulfill social responsibility. The aim of this paper is to apply ABC and TOC to analyze green product mix decision-making for joint products using a mathematical programming model and the joint production data of pharmaceutical industry companies for the processing of active pharmaceutical ingredients (APIs in drugs for medical use. This paper illustrates that the time-driven ABC model leads to optimal joint product mix decisions and performs sensitivity analysis to study how the optimal solution will change with the carbon tax. Our findings provide insight into ‘sustainability decisions’ and are beneficial in terms of environmental management in a competitive pharmaceutical industry.

  10. Digestion of sludge and organic waste in the sustainability concept for Malmö, Sweden.

    Science.gov (United States)

    la Cour Jansen, J; Gruvberger, C; Hanner, N; Aspegren, H; Svärd, A

    2004-01-01

    Anaerobic digestion of sludge has been part of the treatment plant in Malmö for many years and several projects on optimisation of the digestion process have been undertaken in full scale as well as in pilot scale. In order to facilitate a more sustainable solution in the future for waste management, solid waste organic waste is sorted out from households for anaerobic treatment in a newly built city district. The system for treatment of the waste is integrated in a centralised solution located at the existing wastewater treatment plant. A new extension of the digester capacity enables separate as well as co-digestion of sludge together with urban organic waste from households, industry, restaurants, big kitchens, food stores, supermarkets, green markets etc. for biogas production and production of fertiliser. Collection and pre-treatment of different types of waste are in progress together with examination of biogas potential for different types of organic waste. Collection of household waste as well as anaerobic digestion in laboratory and pilot scale has been performed during the last year. It is demonstrated that organic household waste can be digested separately or in combination with sludge. In the latter case a higher biogas yield is found than should be expected from digestion of the two materials separately. Household waste from a system based on collection of organic waste from grinders could be digested at mesophilic conditions whereas digestion failed at thermophilic conditions.

  11. The astysphere and urban geochemistry-a new approach to integrate urban systems into the geoscientific concept of spheres and a challenging concept of modern geochemistry supporting the sustainable development of planet earth.

    Science.gov (United States)

    Norra, Stefan

    2009-07-01

    comprises the parts of the earth influenced by urban systems. Accepting urbanization as global ongoing process forming the astysphere comprehensively copes with the growing importance of urbanization on the creation of present geologic formations. Anthropogenic activities occur mainly in rural and urban environments. For long lasting periods of human history, human activities mainly were focused on hunting and agriculture, but since industrialization, urbanized areas became increasingly important for the material and energy fluxes of earth. Thus, it seems appropriate to classify the anthroposphere into an agriculturally and an urban-dominated sphere, which are the agrosphere (Krishna 2003) and the astysphere (introduced by Norra 2007). We have to realize that urban systems are deposits, consumers, and transformers of resources interacting among each other and forming a network around the globe. Since the future of human mankind depends on the sustainable use of available resources, only a global and holistic view of the cross-linked urban systems forming together the astysphere provide the necessary geoscientific background understanding for global urban material and energy fluxes. If we want to ensure worth-living conditions for future generations of mankind, we have to develop global models of the future needs for resources by the global metasystem of urban systems, called astysphere. The final vision for geoscientific research on the astysphere must be to design models describing the global process of urbanization of the earth and the development of the astysphere with respect to fluxes of materials, elements, and energy as well as with respect to the forming of the earth's face. Besides that, just from the viewpoint of fundamental research, the geoscientific concept of spheres has to be complemented by the astysphere if this concept shall fully represent the system earth.

  12. Implementation of megaprojects for the creation of tourist clusters in Russia based on the concept of energy efficiency and sustainable construction

    Science.gov (United States)

    Orlov, Alexandr K.

    2017-10-01

    The article deals with the application of sustainable construction concept within implementation of megaprojects of tourist clusters development using energy saving technologies. The concept of sustainable construction includes the elements of green construction, energy management as well as aspects of the economic efficiency of construction projects implementation. The methodical approach to the implementation of megaprojects for the creation of tourist clusters in Russia based on the concept of energy efficiency and sustainable construction is proved. The conceptual approach to the evaluation of the ecological, social and economic components of the integral indicator of the effectiveness of the megaproject for the development of the tourist cluster is provided. The algorithm for estimation of the efficiency of innovative solutions in green construction is considered.

  13. Utilizing worldview theory to determine the factors influencing the understanding of evolutionary concepts

    Science.gov (United States)

    Hermann, Ronald S.

    2007-12-01

    The purpose of this study was to identify factors impacting students' ability to develop understanding of evolutionary theory. A novel approach to worldview theory was employed according to which individuals are seen as having one worldview that is comprised of many perspectives. One's worldview is comprised of numerous worldview assumptions, some of which coalesce to form worldview perspectives. Some assumptions are consistent with a scientific perspective while others are more consistent with a religious perspective. Scientific and religious perspectives were quantified based on participants' agreement with assumptions associated with each perspective. Participants completed a 103-item questionnaire addressing several variables: understanding of evolution, understanding of photosynthesis (non-confounding variable), strength of worldview perspectives and exposure to factors influencing the development of worldview perspectives. Increased exposure to factors influencing the development of a strong scientific worldview perspective was hypothesized to cause an increased understanding of evolution. The dependent variable understanding was measured by scores on two Likert-type measures. A causal-comparative study was conducted with 13 high school biology teachers and 67 high school biology students. To determine causation t-tests compared the mean scores on the variables measured. Extreme-group methods were used and data was analyzed for statistical differences between mean scores. Strong scientific worldview perspectives (t=1.003, p=3.19) and exposure to scientific factors (t=2.373, p=.02) were associated with a higher understanding of evolution. Strong religious worldview perspectives (t=-1.991, p=.05) and exposure to religious factors (t=-1.059, p=.31) were associated with a lower understanding of evolution. The results suggest that scientific worldview perspectives play an important role in increasing understanding of evolution; however, religious worldview

  14. [From classical management to contemporary management: understanding new concepts to empower nursing management].

    Science.gov (United States)

    Spagnol, Carla Aparecida

    2002-01-01

    This theoretical work aimed to study Hospital Administration, focusing on Nursing Management. The author points out contemporary administration concepts, and leads us to think over how those new models of management (already in use in some institutions known as pioneers on this area) may have influence on the Nursing Management practice inserted on the context. The author concludes that Nursing is going through a transition moment, breaking paradigms, trying to get over Classical Administration beliefs and searching for flexible, humanized and shared ways to manage Nursing Care.

  15. CONCEPT OF SUSTAINABLE DEVELOPMENT OF THE MODERN CITY AT THE RECONSTRUCTION OF THE BUILDINGS OF THE FIRST MASSIVE SERIES

    Directory of Open Access Journals (Sweden)

    RAZUMOVA O. V.

    2017-02-01

    Full Text Available Summary. The concept of sustainable development is a combination of three components: social, economic and environmental, which are directly related to the development of cities. The economic and demographic crisis has a considerable impact not only on the social sphere, but also on urban planning. The complex approach to restoration and improvement of housing stock is considered, the concept of reconstruction of particular buildings is provided. This approach reflects most fully the purpose of renovating of the particular structure or their groups as a solution to the issue of the complex problem of improving the urban environment. An innovative project for the reconstruction of the buildings of the first mass series with the modification of the space planning solutions of the apartments was proposed, using modern technical and environmental requirements and preserving the housing stock. Purpose of research. The use of innovative approaches in the design of comfortable standard housing and the choice of the technical solutions to improve the energy efficiency of existing buildings, reduce energy costs for solving economic and social problems in the reconstruction of the five-story building of the 50-60's.

  16. From Product to System Approaches in European Sustainable Product Policies: Analysis of the Package Concept of Heating Systems in Buildings

    Directory of Open Access Journals (Sweden)

    Maria Calero-Pastor

    2017-09-01

    Full Text Available Different policies with the goal of reducing energy consumption and other environmental impacts in the building sector coexist in Europe. Sustainable product polices, such as the Ecodesign and Energy Labelling Directives, have recently broadened the scope of their target product groups from a strict product approach to extended product and system approaches. Indeed, there is a potential for greater savings when the focus is at a system level rather than on regulating individual products. Product policies for space and water heating systems have recently introduced and implemented the package label, which is a modular approach, standing between the extended product and the system approaches. This paper presents a systematic analysis of the different system approaches of various policies from an engineering perspective. It analyses in detail the package concept and its features through a practical application using a real case study. It focuses on how the package concept can support decisions made in the building design phase and, in particular, how can support the choice of appropriate components based on estimating system performances. This brings building engineers and regulators closer regarding the use of more consistent data on energy performance. Finally, this paper highlights the need to improve the alignment of the building-related product policies with the Energy Performance of Buildings Directive.

  17. Patients reject the concept of fragility fracture--a new understanding based on fracture patients' communication.

    Science.gov (United States)

    Sale, J E M; Gignac, M A; Frankel, L; Hawker, G; Beaton, D; Elliot-Gibson, V; Bogoch, E

    2012-12-01

    We examined patients' communication about fragility fractures to gain insight into why patients do not connect fractures to bone health. The term "fragility" fracture was a misnomer to patients who perceived the event as physically and emotionally traumatic. Improved communication about such fractures could facilitate awareness of bone health. We examined patients' communication about fragility fractures to gain insight into why patients do not perceive the connection between their fracture and low bone mass. A descriptive phenomenological (qualitative) study was conducted. During face-to-face interviews, the participants described the experience of their fracture in detail and the circumstances surrounding the fracture. Data analysis was guided by Giorgi's methodology. English-speaking male and female patients aged 65+ years and "high" risk for future fracture were eligible and screened for osteoporosis through an established screening program at an urban teaching hospital. We recruited 30 participants (9 males, 21 females), aged 65-88, who presented with a hip (n = 11), wrist (n = 11), shoulder (n = 6), or other (n = 2) fracture. Ten of the 30 fractures occurred inside the home and the remaining fractures occurred outside the home. Sustaining a fragility fracture was perceived as a traumatic event, both physically and emotionally. In general, participants used forceful, action-oriented words and referred to hard surfaces to describe the experience. Explanations for the fracture, other than bone quality, were often reported, especially that falls were "freak" or "fluke" events. Patients who sustained a fracture under more mundane circumstances seemed more likely to perceive a connection between the fracture and their bone health. The term fragility fracture was a misnomer for many older adults. By reexamining how this term is communicated to fracture patients, health care providers may better facilitate patients' awareness of bone health.

  18. Concepts for Life Cycle Cost Control Required to Achieve Space Transportation Affordability and Sustainability

    Science.gov (United States)

    Rhodes, Russel E.; Zapata, Edgar; Levack, Daniel J. H.; Robinson, John W.; Donahue, Benjamin B.

    2009-01-01

    Cost control must be implemented through the establishment of requirements and controlled continually by managing to these requirements. Cost control of the non-recurring side of life cycle cost has traditionally been implemented in both commercial and government programs. The government uses the budget process to implement this control. The commercial approach is to use a similar process of allocating the non-recurring cost to major elements of the program. This type of control generally manages through a work breakdown structure (WBS) by defining the major elements of the program. If the cost control is to be applied across the entire program life cycle cost (LCC), the approach must be addressed very differently. A functional breakdown structure (FBS) is defined and recommended. Use of a FBS provides the visibifity to allow the choice of an integrated solution reducing the cost of providing many different elements of like function. The different functional solutions that drive the hardware logistics, quantity of documentation, operational labor, reliability and maintainability balance, and total integration of the entire system from DDT&E through the life of the program must be fully defined, compared, and final decisions made among these competing solutions. The major drivers of recurring cost have been identified and are presented and discussed. The LCC requirements must be established and flowed down to provide control of LCC. This LCC control will require a structured rigid process similar to the one traditionally used to control weight/performance for space transportation systems throughout the entire program. It has been demonstrated over the last 30 years that without a firm requirement and methodically structured cost control, it is unlikely that affordable and sustainable space transportation system LCC will be achieved.

  19. Synergetic sustainability enhancement via current biofuel infrastructure: waste-to-energy concept for biodiesel production.

    Science.gov (United States)

    Kwon, Eilhann; Yi, Haakrho; Jeon, Young Jae

    2013-03-19

    The concept of waste-to-energy (WtE) with regards to the utilization of byproducts from the bioethanol industry (e.g., distiller's dried grain with solubles: DDGS) was employed to enhance the renewability of biodiesel, which would be an initiative stage of a biorefinery due to the conjunction between bioethanol and biodiesel. For example, DDGS is a strong candidate for use as a biodiesel feedstock due to the tremendous amount that is regularly generated. On the basis of an estimation of possible lipid recovery from DDGS, ∼30% of the biodiesel feedstock demand in 2010 could be supported by the total DDGS generation in the same year. Considering the future expansion of the bioethanol industry up to 2020, the possible lipid recovery from DDGS would provide more than 6 times the biodiesel feedstock demand in 2010. In order to enhance the renewability of biodiesel, the transformation of lipid extracted from DDGS into fatty acid ethyl ester (FAEE) via a noncatalytic transesterification reaction under ambient pressure was investigated in this work. The newly introduced method reported here enables the combination of the esterification of free fatty acids (FFAs) and the transesterification of triglycerides into a single step. This was achieved in the presence of a porous material (i.e., charcoal), and the optimal conditions for transformation into biodiesel via this noncatalytic method were assessed at the fundamental level.

  20. Understanding the Use of Violence Among Men Who Sustain Intimate Terrorism

    Science.gov (United States)

    Hines, Denise A.; Douglas, Emily M.

    2011-01-01

    Researchers in the field of intimate partner violence (IPV) are paying increasing levels of attention to the notion that members of aggressive and violent relationships cannot always be dichotomized as innocent victims versus blameworthy perpetrators; nonetheless, no research has documented characteristics of IPV victims that may predict their use of abusive and aggressive behaviors in response to their partners’ IPV. This study fills this gap and is unique because it uses a sample of 302 men who sustained intimate terrorism from their female partners and sought help. Results showed that victims who used physical IPV, in comparison with victims who did not, were younger and were more likely to abuse alcohol. In addition, in comparison with victims who used minor physical IPV, victims who used severe physical IPV were more likely to use—and use more frequently—other forms of IPV, and they were more likely to be substance abusers. Results are discussed in terms of possible theoretical implications, directions for future research, and practice implications. PMID:21841962

  1. From ozone depletion to agriculture: understanding the role of UV radiation in sustainable crop production.

    Science.gov (United States)

    Wargent, Jason J; Jordan, Brian R

    2013-03-01

    Largely because of concerns regarding global climate change, there is a burgeoning interest in the application of fundamental scientific knowledge in order to better exploit environmental cues in the achievement of desirable endpoints in crop production. Ultraviolet (UV) radiation is an energetic driver of a diverse range of plant responses and, despite historical concerns regarding the damaging consequences of UV-B radiation for global plant productivity as related to stratospheric ozone depletion, current developments representative of a range of organizational scales suggest that key plant responses to UV-B radiation may be exploitable in the context of a sustainable contribution towards the strengthening of global crop production, including alterations in secondary metabolism, enhanced photoprotection, up-regulation of the antioxidative response and modified resistance to pest and disease attack. Here, we discuss the prospect of this paradigm shift in photobiology, and consider the linkages between fundamental plant biology and crop-level outcomes that can be applied to the plant UV-B response, in addition to the consequences for related biota and many other facets of agro-ecosystem processes. © 2013 The Author. New Phytologist © 2012 New Phytologist Trust.

  2. The EvoDevoCI: A Concept Inventory for Gauging Students' Understanding of Evolutionary Developmental Biology

    Science.gov (United States)

    Perez, Kathryn E.; Hiatt, Anna; Davis, Gregory K.; Trujillo, Caleb; French, Donald P.; Terry, Mark; Price, Rebecca M.

    2013-01-01

    The American Association for the Advancement of Science 2011 report "Vision and Change in Undergraduate Biology Education" encourages the teaching of developmental biology as an important part of teaching evolution. Recently, however, we found that biology majors often lack the developmental knowledge needed to understand evolutionary…

  3. A process approach to children's understanding of scientific concepts : A longitudinal case study

    NARCIS (Netherlands)

    van der Steen, Steffie; Steenbeek, Henderien; van Dijk, Marijn; van Geert, Paul

    In order to optimally study changes in the complexity of understanding, microgenetic measures are needed, and a coupling of these to longer-term measures. We focus on the interaction dynamics between a 4-year old boy and a researcher while they work on tasks about air pressure in three subsequent

  4. Current as the Key Concept of Taiwanese Students' Understandings of Electric Circuits

    Science.gov (United States)

    Tsai, Chia-Hsing; Chen, Hsueh-Yu; Chou, Ching-Yang; Lain, Kuen-Der

    2007-01-01

    The purpose of this study was to report the results of a nationwide survey of Taiwanese high schools students' understandings about electric circuits. The study involved two stratified random samples consisting of 7,145 students in Grades 8 and 9, and 2,857 students in Grade 11, accounting for about 2.3% of the total enrolment in the corresponding…

  5. Using Virtual Reality Computer Models to Support Student Understanding of Astronomical Concepts

    Science.gov (United States)

    Barnett, Michael; Yamagata-Lynch, Lisa; Keating, Tom; Barab, Sasha A.; Hay, Kenneth E.

    2005-01-01

    The purpose of this study was to examine how 3-dimensional (3-D) models of the Solar System supported student development of conceptual understandings of various astronomical phenomena that required a change in frame of reference. In the course described in this study, students worked in teams to design and construct 3-D virtual reality computer…

  6. Building an Understanding of Heat Transfer Concepts in Undergraduate Chemical Engineering Courses

    Science.gov (United States)

    Nottis, Katharyn E. K.; Prince, Michael J.; Vigeant, Margot A.

    2010-01-01

    Understanding the distinctions among heat, energy and temperature can be difficult for students at all levels of instruction, including those in engineering. Misconceptions about heat transfer have been found to persist, even after students successfully complete relevant coursework. New instructional methods are needed to address these…

  7. The Assembling of Schooling: Discussing Concepts and Models for Understanding the Historical Production of Modern Schooling

    Science.gov (United States)

    Dussel, Ines

    2013-01-01

    Several notions have been proposed to understand the specificity of schooling and its persistence across time and space, despite several attempts to reform it. In this article, the author analyses more closely the notions of the "grammar of schooling", "forme scolaire", and "school organisational culture". These…

  8. Exploring Young Children's Understanding of Risks Associated with Internet Usage and Their Concepts of Management Strategies

    Science.gov (United States)

    Ey, Lesley-Anne; Cupit, C. Glenn

    2011-01-01

    The Internet provides remarkable opportunities for children's learning and development. Nevertheless, it is unregulated and hard to control, which potentially places children at risk of exploitation. This study examined five-eight-year-old children's understanding of dangers associated with the Internet, management strategies and sources of their…

  9. Effect of Cooperative Learning Strategies on Students' Understanding of Concepts in Electrochemistry

    Science.gov (United States)

    Acar, Burcin; Tarhan, Leman

    2007-01-01

    The present study was conducted to investigate the degree of effectiveness of cooperative learning instruction over a traditional approach on 11th grade students' understanding of electrochemistry. The study involved forty-one 11th grade students from two science classes with the same teacher. To determine students' misconceptions concerning…

  10. Developing a Theoretical Framework for Examining Student Understanding of Fractional Concepts: An Historical Accounting

    Science.gov (United States)

    Cooper, Susan M.; Wilkerson, Trena L.; Montgomery, Mark; Mechell, Sara; Arterbury, Kristin; Moore, Sherrie

    2012-01-01

    In 2007, a group of mathematics educators and researchers met to examine rational numbers and why children have such an issue with them. An extensive review of the literature on fractional understanding was conducted. The ideas in that literature were then consolidated into a theoretical framework for examining fractions. Once that theoretical…

  11. Students' Independent Use of Screencasts and Simulations to Construct Understanding of Solubility Concepts

    Science.gov (United States)

    Herrington, Deborah G.; Sweeder, Ryan D.; VandenPlas, Jessica R.

    2017-01-01

    As students increasingly use online chemistry animations and simulations, it is becoming more important to understand how students independently engage with such materials and to develop a set of best practices for students' use of these resources outside of the classroom. Most of the literature examining students' use of animations and…

  12. 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…

  13. 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.

  14. The impact of art integration as an intervention to assist learners' visual perception and concept understanding in elementary science

    Science.gov (United States)

    Smilan, Cathy A.

    Art integration as educational reform has been the focus of recent debate. The suggestion has been made that the arts can provide unique learning opportunities in other content areas. To provide empirical evidence for this added value of the arts in learning, this study investigated the efficacy of teaching science concepts in and through the visual arts by implementing an art integrated lesson. The study investigated the impact of an art integration to assist elementary level learners' visual perception so they could more accurately form mental models of the science ideas. The hypothesis suggests that participants in the art intervention who construct a three-dimensional representation of abstract science concepts will gain an increased understanding of those concepts. Specifically, students who work with parallel concepts in art and science to make and manipulate three-dimensional, kinetic models of the sun, earth, and moon will be able to more accurately visualize the relationships between these heavenly bodies. Fifth grade students participated in the study which was integrated into the regular curriculum. Seventy-six randomly selected students comprised the experimental group and participated in the art project. After the completion of traditional textbook and lecture presentation by the classroom teachers, a researcher developed Science Concept Test was administered to all fifth grade students. Statistically significant results indicated that the differences between the groups on the science concept test were due to the integration of the art intervention. These empirical data show significant differences between the group receiving the art intervention and the group receiving traditional classroom instruction, supporting the efficacy of the art integration model. In conclusion, the study supports the literature that suggests the efficacy of art integration partnerships as alternative avenues for presenting and representing knowledge. The study additionally

  15. Teaching sustainable solutions in engineering

    DEFF Research Database (Denmark)

    Olsen, Stig Irving; Nielsen, Susanne Balslev; Ejlertsen, Marina

    2015-01-01

    The increasing societal and industrial emphasis on sustainability requests that the next generation engineers needs to be trained in the context of sustainability. One of the means to address students at DTU is the establishment of a course aimed at bachelor students from all of the university......'s study lines. The objectives of the course 'Sustainability in engineering solutions', is for the participants to understand the basic concept of sustainability and its three dimensions (people, profit, planet), as well as to analyse problems and synthesise solutions that are sustainable throughout...

  16. The Proposal Concept of Development and Implementation in Strategy of Sustainable Corporate Social Responsibility in the Context of the HCS Model 3E

    Science.gov (United States)

    Sakál, Peter; Hrdinová, Gabriela

    2016-06-01

    This article is the result of a conceptual design methodology for the development of a sustainable strategy of sustainable corporate social responsibility (SCSR) in the context of the HCS model 3E formed, as a co-author within the stated grants and dissertation. On the basis of the use of propositional logic, the SCSR procedure is proposed for incorporation into the corporate strategy of sustainable development and the integrated management system (IMS) of the industrial enterprise. The aim of this article is the proposal of the concept of development and implementation strategy of SCSR in the context of the HCS model 3E.

  17. Understanding the Indigenous Chinese Concept of Suzhi (素质) from an HRM Perspective

    DEFF Research Database (Denmark)

    Wang, Greg; Lamond, David; Worm, Verner

    2014-01-01

    Purpose - We examine the indigenous Chinese concept of suzhi (素质) with the aim of furthering the development of Chinese human resource management (HRM) research and practice. Design/methodology/approach - An extensive review of the literature on suzhi, published in the West as well as in China...... and multidimensional frameworks, suzhi criteria may form different gestalts in different organizations and industries. Research limitations/implications - From a sociocultural and historical perspective, HRM research that incorporates a combination of indigenous and indigenized suzhi characteristics may receive better...... acceptance by Chinese individuals, organizations and society. Accordingly, the reconstruction of suzhi into manageable and measurable dimensions can be undertaken for more effective HRM practice in the Chinese context. Originality/value - We advance the extant HRM literature by linking the indigenous suzhi...

  18. Sustainable Materials Management (SMM) Web Academy Webinar: Compost from Food Waste: Understanding Soil Chemistry and Soil Biology on a College/University Campus

    Science.gov (United States)

    This page contains information about the Sustainable Materials Management (SMM) Web Academy Webinar Series titled Compost from Food Waste:Understanding Soil Chemistry and Soil Biology on a College/University Campus

  19. Sustainability and Cities as Systems of Innovation

    DEFF Research Database (Denmark)

    Johnson, Bjørn; Lehmann, Martin

    Cities often constitute relevant environments for interactive learning and innovation potentially capable of tackling sustainability problems. In this paper we ask if the concept of systems of innovation can increase our understanding of city dynamics and help promoting the sustainable development...... of cities. Through a combination of the innovation system approach and the perspective of creative cities, we argue that a slightly modified conceptsustainable city systems of innovation – may be helpful in this context. To underline this, we discuss certain ‘city-traits’ of sustainability and conclude...... that the new concept may be of special use for urban quality development and management....

  20. Using Metasynthesis to Develop Sensitising Concepts to Understand Torres Strait Islander Migration

    OpenAIRE

    Mosby, Vinnitta Patricia

    2013-01-01

    Emerging research indicates that more and more Indigenous peoples will be forced to migrate due to climate change. Current responses focus on mitigation and adaptation strategies. One such group, Torres Strait Islander people are already moving for other reasons and existing vulnerabilities compound levels of disadvantage when moving. It will be important to understand Torres Strait Islander people’s experiences of contemporary movements in order to inform policy development and facilitate th...