WorldWideScience

Sample records for proven practical ways

  1. Smart security proven practices

    CERN Document Server

    Quilter, J David

    2014-01-01

    Smart Security: Understanding and Contributing to the Business is a video presentation. Length: 68 minutes. In Smart Security: Understanding and Contributing to the Business, presenter J. David Quilter demonstrates the benefits of how a fully integrated security program increases business profits and delivers smart security practices at the same time. The presentation does away with the misconception that security is only an expense. In fact, a well-integrated security program can protect business interests, thereby enhancing productivity and net income. Quilter covers cost analysis and secu

  2. SEIS-PROV: Practical Provenance for Seismological Data

    Science.gov (United States)

    Krischer, L.; Smith, J. A.; Tromp, J.

    2015-12-01

    It is widely recognized that reproducibility is crucial to advance science, but at the same time it is very hard to actually achieve. This results in it being recognized but also mostly ignored by a large fraction of the community. A key ingredient towards full reproducibility is to capture and describe the history of data, an issue known as provenance. We present SEIS-PROV, a practical format and data model to store provenance information for seismological data. In a seismological context, provenance can be seen as information about the processes that generated and modified a particular piece of data. For synthetic waveforms the provenance information describes which solver and settings therein were used to generate it. When looking at processed seismograms, the provenance conveys information about the different time series analysis steps that led to it. Additional uses include the description of derived data types, such as cross-correlations and adjoint sources, enabling their proper storage and exchange. SEIS-PROV is based on W3C PROV (http://www.w3.org/TR/prov-overview/), a standard for generic provenance information. It then applies an additional set of constraints to make it suitable for seismology. We present a definition of the SEIS-PROV format, a way to check if any given file is a valid SEIS-PROV document, and two sample implementations: One in SPECFEM3D GLOBE (https://geodynamics.org/cig/software/specfem3d_globe/) to store the provenance information of synthetic seismograms and another one as part of the ObsPy (http://obspy.org) framework enabling automatic tracking of provenance information during a series of analysis and transformation stages. This, along with tools to visualize and interpret provenance graphs, offers a description of data history that can be readily tracked, stored, and exchanged.

  3. Opinion: Taking phytoremediation from proven technology to accepted practice.

    Science.gov (United States)

    Gerhardt, Karen E; Gerwing, Perry D; Greenberg, Bruce M

    2017-03-01

    Phytoremediation is the use of plants to extract, immobilize, contain and/or degrade contaminants from soil, water or air. It can be an effective strategy for on site and/or in situ removal of various contaminants from soils, including petroleum hydrocarbons (PHC), polycyclic aromatic hydrocarbons (PAHs), polychlorinated biphenyls (PCBs), solvents (e.g., trichloroethylene [TCE]), munitions waste (e.g., 2,4,6-trinitrotoluene [TNT]), metal(loid)s, salt (NaCl) and radioisotopes. Commercial phytoremediation technologies appear to be underutilized globally. The primary objective of this opinion piece is to discuss how to take phytoremediation from a proven technology to an accepted practice. An overview of phytoremediation of soil is provided, with the focus on field applications, to provide a frame of reference for the subsequent discussion on better utilization of phytoremediation. We consider reasons why phytoremediation is underutilized, despite clear evidence that, under many conditions, it can be applied quite successfully in the field. We offer suggestions on how to gain greater acceptance for phytoremediation by industry and government. A new paradigm of phytomanagement, with a specific focus on using phytoremediation as a "gentle remediation option" (GRO) within a broader, long-term management strategy, is also discussed. Copyright © 2016 Elsevier Ireland Ltd. All rights reserved.

  4. Sr - an element shows the way - Applications of Sr isotopes for provenance, tracing and migration (Invited)

    Science.gov (United States)

    Prohaska, T.; Irrgeher, J.; Zitek, A.; Teschler Nicola, M.

    2010-12-01

    Strontium - named after the small Scottish town Strontian - as such is an element with little popularity. Firstly described by Martin Heinrich Klaproth in 1798, the metal is used in metallurgy to some extent whereas its compounds are interesting in glass industries, electronics and pyrotechnics. The element has chemical similarity to Ca and makes up 1/60 of the earth’s amount of the latter. Nonetheless, it is its isotopic composition which makes Sr so interesting for a large number of scientists. The natural composition of the four naturally occurring isotopes (84Sr, 86Sr 87Sr and 88Sr) varies in nature due to the radioactive decay of 87Rb to 87Sr. Thus, it was early recognized as geochronometer especially in Ca rich matrices. With increasing precision of applied methodology, the natural variation of the 87Sr/86Sr isotope ratio (analyzed at first mainly by thermal ionization mass spectrometry (TIMS)) became more and more popular in provenance studies. The natural variation of the ratio is mainly determined by the geological age and the original composition of the rock and can be used therefore as fingerprint of the local geology. The ratio is transferred with no significant fractionation via the water into plants and finally via the food chain into animal and human tissues (especially bones and teeth). As the element is chemically similar to Ca, it appears in most matrices. The use for provenance studies is supported by the fact that the long half life (4.8 x 1010 years) does not lead to an alteration during the time scales which are investigated (from recent samples to human or animal skeletal remains which date back up to 30.000 BC). The uniqueness of the system besides the natural variation is defined by the ubiquity in nature and the relatively high (and thus measurable) elemental concentration in most tissues. It was finally the advent of multiple collector inductively coupled plasma mass spectrometry (MC-ICP-MS) which augmented the number of applications

  5. PEDAGOGICAL PRACTICE WAY OF CONNECTING PEDAGOGICAL THEORY AND PRACTICE

    Directory of Open Access Journals (Sweden)

    Božo Obradović

    2013-12-01

    Full Text Available The issue of linking educational theory to educational practice (educational work with young people is highly topical and important issue for the science of pedagogy. One way of achieving this task is a pedagogical practice (PP students. In paper we deal with identifying, comparing, and analyzing the curricula of vocational (Curriculum for Preschool Teacher (2007 and academic (Curriculum for Educators (2007. Studies Teacher Training in Serbia, as well as educational disciplines and areas of pedagogical science derived from them. The results showed many similarities, but also differences when it comes to educational disciplines that are taught, the name of pedagogical practice, the number of classes to implement, ECTS (European Credit Transfer System, which affect the quality and coherence of educational theory and educational practice. In order to identify similarities and overcome weaknesses that accompany the pedagogical practice analysis, we came to know about the specifics of each of the six pedagogical practice. For each pedagogical practice defined specific goals and tasks arising from the curriculum, and in particular pedagogical disciplines taught at university. Each of these pedagogical practices is the ability to connect educational theory and educational practice and direct way to increase the quality of training and competence of future teachers for direct work with children.

  6. PEDAGOGICAL PRACTICE WAY OF CONNECTING PEDAGOGICAL THEORY AND PRACTICE

    OpenAIRE

    Božo Obradović

    2013-01-01

    The issue of linking educational theory to educational practice (educational work with young people) is highly topical and important issue for the science of pedagogy. One way of achieving this task is a pedagogical practice (PP) students. In paper we deal with identifying, comparing, and analyzing the curricula of vocational (Curriculum for Preschool Teacher (2007) and academic (Curriculum for Educators (2007). Studies Teacher Training in Serbia, as well as educational disciplines and areas ...

  7. Wood constructions. Energy eficient, sustainable, practically proven; Holzbau Konstruktionen. Energieeffizient, nachhaltig, praxisgerecht

    Energy Technology Data Exchange (ETDEWEB)

    Lueckmann, Rudolf

    2012-07-01

    The book 'Wood constructions' provides standardized and practically proven designs, all necessary information on building physics, fire protection and additional specialized knowledge for energy efficient renovations and construction details in wood construction. The main topics of this book are: Fundamentals, timber-frame structures, wood preservation, thermal insulation, sound insulation, fire protection, energy-efficient timber buildings, timber construction systems, rehabilitation of timber structures, relevant regulations and standards.

  8. A Novel Way To Practice Slope.

    Science.gov (United States)

    Kennedy, Jane B.

    1997-01-01

    Presents examples of using a tic-tac-toe format to practice finding the slope and identifying parallel and perpendicular lines from various equation formats. Reports the successful use of this format as a review in both precalculus and calculus classes before students work with applications of analytic geometry. (JRH)

  9. A Proven Way to Incorporate Catholic Social Thought in Business School Curricula: Teaching Two Approaches to Management in the Classroom

    Science.gov (United States)

    Dyck, Bruno

    2013-01-01

    Widespread agreement suggests that it is appropriate and desirable to develop and teach business theory and practice consistent with Catholic social teaching (CST) in Catholic business schools. Such a curriculum would cover the same mainstream material taught in other business schools, but then offer a CST approach to business that can be…

  10. Practical ways of bringing innovations and creativity into the school ...

    African Journals Online (AJOL)

    This article describes the practical ways of bringing innovations and creativity into the school library media programme in Nigeria. Discussion focused on areas on creativity and innovations such as environmental design, staffing, outreach activities, library cooperation, and introduction of ICT system. Keywords: Innovations ...

  11. The 4Ps of Breast Cancer Chemoprevention: Putting Proven Principles into Practice.

    Science.gov (United States)

    Jordan, V Craig

    2017-04-01

    The pioneering Royal Marsden Tamoxifen Prevention Trial recruited 2,471 eligible high-risk women to be randomized to either placebo or tamoxifen (20 mg daily) for 8 years. Breast cancer incidence was evaluated at a median of 18.4 years from the start of the study. There was a 32% reduction in estrogen/progesterone receptor (ER/PR)-positive breast cancers after tamoxifen treatment finished. Translational research, to study "the good, the bad, and the ugly of tamoxifen" in the 1980s, subsequently ensured women's safety from possible increases in osteoperosis, coronary heart disease, and endometrial cancer. Other tamoxifen chemoprevention trials followed. The result of laboratory research was the unanticipated discovery of raloxifene to prevent osteoporosis and breast cancer at the same time. A new group of medicines, now known as selective ER modulators, was established. Indeed, the ability to prevent or delay multiple diseases with a single cheap medicine has the potential to alleviate pressure on health care systems that are overwhelmed. It is a priority to educate physicians appropriately to apply recommended proven medicines as preventives. Cancer Prev Res; 10(4); 219-22. ©2017 AACR See related article by Detre, et al., Cancer Prev Res 2017;10(3):171-6 . ©2017 American Association for Cancer Research.

  12. Proven Weight Loss Methods

    Science.gov (United States)

    Fact Sheet Proven Weight Loss Methods What can weight loss do for you? Losing weight can improve your health in a number of ways. It can lower ... at www.hormone.org/Spanish . Proven Weight Loss Methods Fact Sheet www.hormone.org

  13. Practice development for midwifery education: an innovative way forward.

    Science.gov (United States)

    Donsante, Jackie; Edgar, Denise; Gill, Leeanne; Thomson, Ceri; Williamson, Moira; Walsh, Kenneth

    2013-01-01

    Within workplaces there can be several different cultures operating, and it is widely recognised that this occurs in health services. Midwifery and maternity care has, and continues to face many challenges as services continually change and develop to meet the needs of women and their families. To help meet these challenges a practice development initiative was undertaken within a large maternity service in Australia to improve the learning and workplace culture. This service consisted of four separate units providing care for women and their families in the antenatal, birthing, postnatal and neonatal periods. The coming together of these four units as a service began with the creation of a shared values statement which was adopted by all midwifery staff. To obtain evidence of the current workplace, observations of practice, the review of women's stories, and audits of clinical data were undertaken. Nine midwives were trained and supported to facilitate critical discussions of the data. These critical discussions, reflections and analysis of the data, led to the identification of four domains or key areas the staff prioritised for change. This led to practice development groups being formed within the maternity service, who developed collaborative and creative ways of thinking about the issues or problems identified. This paper highlights how the processes of practice development were implemented to improve one of these domains "the learning and workplace culture", especially in relation to educational information and resources for women, their families and staff. The journey began over three years ago and continues to evolve. Crown Copyright © 2012. Published by Elsevier Ltd. All rights reserved.

  14. A comparison between new ways of working and Ssociotechnical systems in new ways of working practices

    NARCIS (Netherlands)

    Blok, M.; Meulen, F. van der; Dhondt, S.

    2016-01-01

    For various reasons many organisations are currently introducing the new ways of working (NWW). By now, this occurs on such a large scale, that it becomes relevant to investigate whether the new way of working leads to the best way of working: are the measurements taken by NWW really resulting in

  15. Practical and affordable ways to cultivate leadership in your organization.

    Science.gov (United States)

    Gaufin, Joyce R; Kennedy, Kathy I; Struthers, Ellen D

    2010-01-01

    Leadership can be cultivated through the intentional actions of managers and others in public health organizations. This article provides a rationale for taking innovative and proactive steps to build leadership, discusses four general strategies for doing so, and presents seven practical, creative, and affordable actions that can have a positive influence on efforts to cultivate leadership qualities in the public health workforce. Each action is illustrated with an actual contemporary example from a local public health agency. The actions include providing formal or informal coaching/mentoring opportunities; assigning staff to lead new projects or collaborations, projects outside their disciplines, projects that cause growth in their information technology capacity, or orphan or struggling projects; facilitating a book club; and institutionalizing reflection. The best way to ensure that effective leadership is available when the organization needs it is to intentionally develop it through an ongoing process. Leadership growth can be supported during the ordinary course of business in a public health organization through thoughtful challenges, sharing ideas and experiences, and especially through the example set by managers and those in positions of authority.

  16. New Ways for EUROPRACTICE Training and Best Practice Service

    DEFF Research Database (Denmark)

    Olesen, Ole

    1997-01-01

    .Among those should be mentioned intelligent use of internet, multimedia training and RF high speed low power training.TBPS is primarily a course broker negotiating with more than 45 course vendors to get highly qualified courses at different levels and at moderate prices in the 5 key microelectronics areas...... been organized to fill the gap, and information about the courses is distributed in different ways.Intelligent use of internet and multimedia technology promotes micro-electronics training in a very effective way.This is the most effective way to promote the large number of courses...

  17. University Business Models and Online Practices: A Third Way

    Science.gov (United States)

    Rubin, Beth

    2013-01-01

    Higher Education is in a state of change, and the existing business models do not meet the needs of stakeholders. This article contrasts the current dominant business models of universities, comparing the traditional non-profit against the for-profit online model, examining the structural features and online teaching practices that underlie each.…

  18. Audio podcasts in practical courses in biochemistry ? cost-efficient e-learning in a well-proven format from radio broadcasting

    OpenAIRE

    M?nch-Harrach, Dieter; Kothe, Christian; Hampe, Wolfgang

    2013-01-01

    Introduction: Audio podcasts are an e-learning format that may help to motivate students to deal with the contents of medical education more intensely. We adopted a well-proven format from radio broadcasting, the radio documentary, to direct the listeners? attention to information about practical courses in biochemistry over a period of 20 minutes at most. Information, original sounds, and a specific atmosphere allow listeners to perceive the contents intensely. Method: In order to organise t...

  19. Paks shows the way towards good operating practices

    International Nuclear Information System (INIS)

    Anon.

    1989-01-01

    The Paks-3 unit in Hungary was the first VVER (Soviet designed Pressurized Water Reactor) to be scrutinized by an International Atomic Energy Agency Operational Safety Analysis Review Team. A number of examples of good operational practice were noted. Those reported here include the cleanliness of the plant, the management attitude to training, early detection of and action to correct problems as they arise, an accident avoidance policy, a back-up research and development programme, and the provision of computer-based assistance to the operator to present operational data in an easily comprehensible form. (U.K.)

  20. Unpacking the species conundrum: philosophy, practice and a way forward.

    Science.gov (United States)

    Shanker, Kartik; Vijayakumar, S P; Ganeshaiah, K N

    2017-07-01

    The history of ecology and evolutionary biology is rife with attempts to define and delimit species. However, there has been confusion between concepts and criteria, which has led to discussion, debate, and conflict, eventually leading to lack of consistency in delimitation. Here, we provide a broad review of species concepts, a clarification of category versus concept, an account of the general lineage concept (GLC), and finally a way forward for species discovery and delimitation. Historically, species were considered as varieties bound together by reproduction. After over 200 years of uncertainty, Mayr attempted to bring coherence to the definition of species through the biological species concept (BSC). This has, however, received much criticism, and the last half century has spawned at least 20 other concepts. A central philosophical problem is that concepts treat species as 'individuals' while the criteria for categorization treats them as 'classes'. While not getting away from this problem entirely, the GLC attempts to provide a framework where lineage divergence is influenced by a number of different factors (and correlated to different traits) which relate to the different species concepts. We also introduce an 'inclusive' probabilistic approach for understanding and delimiting species. Finally, we provide aWallacean (geography related) approach to the Linnaean problem of identifying and delimiting species, particularly for cases of allopatric divergence, and map this to the GLC. Going one step further, we take a morphometric terrain approach to visualizing and understanding differences between lineages. In summary, we argue that while generalized frameworks may work well for concepts of what species are, plurality and 'inclusive' probabilistic approaches may work best for delimitation.

  1. Waste biomass and energy transition. Proven practices, new developments and visions; Abfall-Biomasse und Energiewende. Bewaehrtes, Neues und Visionen

    Energy Technology Data Exchange (ETDEWEB)

    Fricke, Klaus [Arbeitskreis fuer die Nutzbarmachung von Siedlungsabfaellen (ANS) e.V., Braunschweig (Germany); Technische Univ. Braunschweig (Germany). Lehrstuhl Abfall- und Ressourcenwirtschaft; Kammann, Claudia [Arbeitskreis fuer die Nutzbarmachung von Siedlungsabfaellen (ANS) e.V., Braunschweig (Germany). Fachausschuss Biokohle; Hochschule Geisenheim Univ. (Germany). Klimafolgenforschung-Klimawandel in Spezialkulturen; Wallmann, Rainer (ed.) [Arbeitskreis fuer die Nutzbarmachung von Siedlungsabfaellen (ANS) e.V., Braunschweig (Germany); Werra-Meissner Kreis, Eschwege (Germany)

    2014-07-01

    This book contains 17 papers that were presented at the 75th meeting of the ANS. The following main topics are covered: waste management in the context of climate protection and the energy turnaround; optimised materials management; carbon: climate killer or indispensable raw material?; climate protection in Germany - why and how?; treatment techniques for waste biomass; the amended Renewable Energy Law - sensible adaptation or impediment to the energy turnaround?; putting ideas into practice: examples and opportunities. Four of the contributions have been abstracted individually for this database. [German] Dieses Buch enthaelt 17 Beitraege, die auf dem 75. Symposium des ANS vorgetragen wurden. Die Themenschwerpunkte waren: Abfallwirtschaft im Kontext des Klimaschutzes und der Energiewende; Optimiertes Stoffmanagement; Kohlenstoff: Klimakiller oder unverzichtbare Rohstoff?; Klimaschutz in Deutschland - Warum und wie?; Behandlungstechniken von Abfall-Biomasse; Novellierung des EEG - Sinnvolle Anpassung oder Breme der Energiewende; Der Weg in die Praxis: Beispiele und Chancen. Vier der Beitraege wurden separarat fuer diese Datenbank aufgenommen.

  2. Testing evidence routine practice: Using an implementation framework to embed a clinically proven asthma service in Australian community pharmacy.

    Science.gov (United States)

    Fuller, Joanne M; Saini, Bandana; Bosnic-Anticevich, Sinthia; Garcia Cardenas, Victoria; Benrimoj, Shalom I; Armour, Carol

    Community pharmacists are well placed and evidence clearly demonstrates that they can be suitably trained to deliver professional services that improve the management of asthma patients in clinical, economic and humanistic terms. However the gap between this evidence and practice reality remains wide. In this study we measure the implementation process as well as the service benefits of an asthma service model. Using an effectiveness-implementation hybrid design, a defined implementation process (progression from Exploration through Preparation and Testing to Operation stages) supporting an asthma service (promoting asthma control and inhaler technique) was tested in 17 community pharmacies across metropolitan Sydney. Seven pharmacies reached the Operation stage of implementation. Eight pharmacies reached the Testing stage of implementation and two pharmacies did not progress beyond the Preparation stage of implementation. A total of 128 patients were enrolled in the asthma service with 110 patients remaining enrolled at the close of the study. Asthma control showed a positive trend throughout the service with the overall proportion of patients with 'poor' asthma control at baseline decreasing from 72% to 57% at study close. There was a statistically significant increase in the proportion of patients with correct inhaler technique from 12% at Baseline (Visit 1) to 33% at Visit 2 and 57% at study close. Implementation of the asthma service varied across pharmacies. Different strategies specific to practice sites at different stages of the implementation model may result in greater uptake of professional services. The asthma service led to improved patient outcomes overall with a positive trend in asthma control and significant change in inhaler technique. Copyright © 2017 Elsevier Inc. All rights reserved.

  3. `Drawing the Leaves Anyway': Teachers Embracing Children's Different Ways of Knowing in Preschool Science Practice

    Science.gov (United States)

    Areljung, Sofie; Ottander, Christina; Due, Karin

    2017-12-01

    This study explores if and how teachers combine practices of science and of preschool (children 1-5 years old) into preschool science practice. Views of knowing may differ between science practices, traditionally associated with masculinity and rationality, and preschool practices, traditionally associated with femininity and caring. Recognising this, we have chosen to focus on how teachers' talk constructs and relates to possible ways of gaining knowledge and reaching explanations of phenomena in preschool science. The analysis builds on two concept pairs often associated with gender as well as knowing: objective-subjective and logical-intuitive. The analysed material consists of 11 group interviews where preschool teachers talk about activities concerning science content. Our results show that several ways of knowing are possible in work with science content in preschool. These include ways of knowing more associated with subjectivity, such as `individual liking' and `whole-body perception', as well as more associated with objectivity, such as `noticing differences and similarities'. Furthermore, the results show that the teachers' talk moves readily between possibilities associated with femininity (subjective and intuitive) and masculinity (objective and logical). This indicates that the teachers in this study have found ways to handle science in preschool that goes against presumed tensions between science and preschool practices. The results contribute to more nuanced ways of describing and thinking about science in preschool and pave the way for further development of science education in early childhood education.

  4. Manage indirect practice expense the way you practice medicine: with information.

    Science.gov (United States)

    Zeller, T L; Senagore, A J; Siegel, G

    1999-05-01

    Surgeons are increasingly faced with the pressures of maintaining the highest quality of patient care, while at the same time maintaining financial viability. The purpose of this project was to provide a framework for analyzing practice costs for colorectal surgeons using an activity-based cost accounting model. A survey of 11 practices that were diverse in terms of geography, managed care penetration, academic vs. private practice style, and case distribution was performed. In activity-based costing the assignment of typical costs such as staff salaries are assigned to the appropriate business process. The business processes employed in this study were service patients in the office, perform in-office procedures, schedule cases in facilities, service patients in the hospital, insurance authorization, maintain medical records, billing, collections, resolve billing disputes, interaction with third parties, maintain professional education, sustain and manage the practice, maintain the facility, teaching and research, and performing drug studies. The final step is to assign the cost associated with all appropriate business processes to the appropriate cost object. The cost objects in this study were defined as a charge office visit, no-charge office visit, charge hospital visit, in-office procedures, in-facility procedures, and performing drug studies. The data were then analyzed to allow a comparison of four similar practices within the study group. The data demonstrated that the cost of seeing a charge office visit ranged from $55 to $105. Similarly, the cost of seeing a no-charge office visit during the global period ranged from $43 to $100. The study analyzed possible explanations for the wide variability in these costs. It is essential that physicians clearly understand the sources of expenses generated by the operation of their practices. A clear comprehension of costs will lead colorectal surgeons to make appropriate decisions regarding such important issues as

  5. Nothing so practical as a good theory; Five ways to use system dynamics for theoretical contributions

    NARCIS (Netherlands)

    Gooyert, V. de

    2016-01-01

    The ubiquitous practical relevance of system dynamics makes it easy to overlook the scientific impact that system dynamics has had. Studies on building theory with simulations suggest that there are very different ways of arriving at a theoretical contribution, which brings up the question how

  6. Audio podcasts in practical courses in biochemistry - cost-efficient e-learning in a well-proven format from radio broadcasting.

    Science.gov (United States)

    Münch-Harrach, Dieter; Kothe, Christian; Hampe, Wolfgang

    2013-01-01

    Audio podcasts are an e-learning format that may help to motivate students to deal with the contents of medical education more intensely. We adopted a well-proven format from radio broadcasting, the radio documentary, to direct the listeners' attention to information about practical courses in biochemistry over a period of 20 minutes at most. Information, original sounds, and a specific atmosphere allow listeners to perceive the contents intensely. In order to organise the production of the podcast as cost-efficient and least time-consuming as possible, a student, a teacher, a clinician, and a technical assistant compile the core themes of their respective text blocks in an editorial conference first. After that, the speakers can elaborate on and record their blocks independently. Coordination is widely handled by the student. At two points of time, the podcasts were evaluated by the medical students by means of a questionnaire. With little cost and time expenses, eight podcasts were produced. They have been used by the students extensively and have also been evaluated very positively by non-student listeners. For long-term usage, a regular reference to the podcast offer is required in the courses. Involving students, successful podcasts can be produced to support classroom teaching with little expenses and contribute to the external presentation of the medical faculty.

  7. Audio podcasts in practical courses in biochemistry – cost-efficient e-learning in a well-proven format from radio broadcasting

    Science.gov (United States)

    Münch-Harrach, Dieter; Kothe, Christian; Hampe, Wolfgang

    2013-01-01

    Introduction: Audio podcasts are an e-learning format that may help to motivate students to deal with the contents of medical education more intensely. We adopted a well-proven format from radio broadcasting, the radio documentary, to direct the listeners’ attention to information about practical courses in biochemistry over a period of 20 minutes at most. Information, original sounds, and a specific atmosphere allow listeners to perceive the contents intensely. Method: In order to organise the production of the podcast as cost-efficient and least time-consuming as possible, a student, a teacher, a clinician, and a technical assistant compile the core themes of their respective text blocks in an editorial conference first. After that, the speakers can elaborate on and record their blocks independently. Coordination is widely handled by the student. At two points of time, the podcasts were evaluated by the medical students by means of a questionnaire. Results: With little cost and time expenses, eight podcasts were produced. They have been used by the students extensively and have also been evaluated very positively by non-student listeners. For long-term usage, a regular reference to the podcast offer is required in the courses. Conclusion: Involving students, successful podcasts can be produced to support classroom teaching with little expenses and contribute to the external presentation of the medical faculty. PMID:24282447

  8. 'There's so much to it': the ways physiotherapy students and recent graduates experience practice.

    Science.gov (United States)

    Barradell, S; Peseta, T; Barrie, S

    2018-05-01

    Health science courses aim to prepare students for the demands of their chosen profession by learning ways appropriate to that profession and the contexts they will work and live in. Expectations of what students should learn become re-contextualised and translated into entry-level curriculum, with students operating as a connection between what is intended and enacted in curriculum, and required in the real world. Drawing on phenomenology, this paper explores how students understand practice-the collective, purposeful knowing, doing and being of a community-in entry-level physiotherapy programs. Ways of thinking and practising (WTP)-a framework attentive to the distinctive nature of a discipline, its values, philosophies and world-view (McCune and Hounsell in High Educ 49(3):255-289, 2005)-provides the conceptual lens. Six themes describing how students see the WTP of physiotherapy practice emerged from the analysis: discovery of new knowledge; problem solving client related contexts; adopting a systems based approach to the body; contributing to a positive therapeutic alliance; developing a sense of self and the profession; and the organisation of the workforce. The study produces knowledge about practice by focusing on physiotherapy students' experiences of disciplinary learning. Including students in educational research in this way is an approach that can help students realise their potential as part of a community of practice.

  9. CITY ARCHITECTURE AS WAY OF CONSTRUCTION AND DECONSTRUCTION OF SOCIAL PRACTICES IN THE CITY

    Directory of Open Access Journals (Sweden)

    Ivanova V. V.

    2017-06-01

    Full Text Available In this article urban architecture, acting as a «natural physical borders of mankind», creates a certain discourse of social practices that construct and define reality, forming views and values. Moreover, that discourse can be deconstructed and problematized through representation of the urban architecture, which provides an opportunity to explore different ways of forming those social practices among citizens. Thus, the main idea of this study is to examine the way in which social practices could be seen as a reflection of citizen’s actions, which, on the one hand, are set up by the urban construction as an objective structure and, on the other hand, modal behavior which are formed by the influence of a certain structure of thought and ideas. To implement the objectives of the study, we use the discourse analysis as a method of analyzing the meanings through which an attempt of deconstruction of practices of urban life is made, the analysis of themes which are brought up to reveal the featured characteristics and values of urban architecture and ways of its coding.

  10. Flow-Based Provenance

    Directory of Open Access Journals (Sweden)

    Sabah Al-Fedaghi

    2017-02-01

    Full Text Available Aim/Purpose: With information almost effortlessly created and spontaneously available, current progress in Information and Communication Technology (ICT has led to the complication that information must be scrutinized for trustworthiness and provenance. Information systems must become provenance-aware to be satisfactory in accountability, reproducibility, and trustworthiness of data. Background:\tMultiple models for abstract representation of provenance have been proposed to describe entities, people, and activities involved in producing a piece of data, including the Open Provenance Model (OPM and the World Wide Web Consortium. These models lack certain concepts necessary for specifying workflows and encoding the provenance of data products used and generated. Methodology: Without loss of generality, the focus of this paper is on OPM depiction of provenance in terms of a directed graph. We have redrawn several case studies in the framework of our proposed model in order to compare and evaluate it against OPM for representing these cases. Contribution: This paper offers an alternative flow-based diagrammatic language that can form a foundation for modeling of provenance. The model described here provides an (abstract machine-like representation of provenance. Findings: The results suggest a viable alternative in the area of diagrammatic representation for provenance applications. Future Research: Future work will seek to achieve more accurate comparisons with current models in the field.

  11. Does the way physicians are paid influence the way they practice? The case of Canadian family physicians' work activity.

    Science.gov (United States)

    Sarma, Sisira; Devlin, Rose Anne; Belhadji, Bachir; Thind, Amardeep

    2010-12-01

    To investigate the impact of the mode of remuneration on the work activities of Canadian family physicians on: (a) direct patient care in office/clinic, (b) direct patient care in other settings and (c) indirect patient care. Because the mode of remuneration is potentially endogenous to the work activities undertaken by family physicians, an instrumental variable estimation procedure is considered. We also account for the fact that the determination of the allocation of time to different activities by physicians may be undertaken simultaneously. To this end, we estimate a system of work activity equations and allow for correlated errors. Our results show that the mode of remuneration has little effect on the total hours worked after accounting for the endogeneity of remuneration schemes; however it does affect the allocation of time to different activities. We find that physicians working in non-fee-for-service remuneration schemes spend fewer hours on direct patient care in the office/clinic, but devote more hours to direct patient care in other settings, and more hours on indirect patient care. Canadian family physicians working in non-fee-for-service settings spend fewer hours on direct patient care in the office/clinic, but devote more hours to direct patient care in other settings and devote more hours to indirect patient care. The allocation of time in non-fee-for-service practices may have some implications for quality improvement. Copyright © 2010 Elsevier Ireland Ltd. All rights reserved.

  12. Ways of Doing: Restorative Practices, Governmentality, and Provider Conduct in Post-Apartheid Health Care.

    Science.gov (United States)

    Harris, Bronwyn; Eyles, John; Goudge, Jane

    2016-01-01

    In this article, we consider the conduct of post-apartheid health care in a policy context directed toward entrenching democracy, ensuring treatment-adherent patients, and creating a healthy populace actively responsible for their own health. We ask how tuberculosis treatment, antiretroviral therapy, and maternal services are delivered within South Africa's health system, an institutional site of colonial and apartheid injustice, and democratic reform. Using Foucauldian and post-Foucauldian notions of governmentality, we explore provider ways of doing to, for, and with patients in three health subdistricts. Although restorative provider engagements are expected in policy, older authoritarian and paternalistic norms persist in practice. These challenge and reshape, even 'undo' democratic assertions of citizenship, while producing compliant, self-responsible patients. Alongside the need to address pervasive structural barriers to health care, a restorative approach requires community participation, provider accountability, and a health system that does with providers as much as providers who do with patients.

  13. Innocent Until Proven Guilty

    Science.gov (United States)

    Case, Catherine; Whitaker, Douglas

    2016-01-01

    In the criminal justice system, defendants accused of a crime are presumed innocent until proven guilty. Statistical inference in any context is built on an analogous principle: The null hypothesis--often a hypothesis of "no difference" or "no effect"--is presumed true unless there is sufficient evidence against it. In this…

  14. The Interdisciplinary Business Doctorate for Executives: A Novel Way to Bridge Academic Research and Practice

    Directory of Open Access Journals (Sweden)

    T. Grandon Gill

    2015-10-01

    Full Text Available The paper presents an over view of a new type of degree program that is rapidly emerging and gaining acceptance in the U.S.: the business doctorate for executives. Roughly a dozen of these programs currently exist at institutions accredited by AACSB International, the nation's premier accrediting agency. Although they are research-focused, like their Ph.D counterparts, they are quite different in a number of ways. Among the most important of these: they target applicants with substantial executive experience, they are part time and assume their participants will continue working while in the program, they are interdisciplinary in focus and their emphasis is generally on applying research methods to practical business problems, as opposed to producing published research articles. As a consequence, they are well-positioned to serve as a bridge that increases partnering between academic research and practice. After summarizing the general nature of these programs, the paper considers the structure and objectives of the new Doctor of Business Administration (DBA program being offered by the Muma College of Business at the University of South Florida.

  15. Data Provenance and Trust

    Directory of Open Access Journals (Sweden)

    Stratis D Viglas

    2013-07-01

    Full Text Available The Oxford Dictionary defines provenance as “the place of origin, or earliest known history of something.” The term, when transferred to its digital counterpart, has morphed into a more general meaning. It is not only used to refer to the origin of a digital artefact but also to its changes over time. By changes in this context we may not only refer to its digital snapshots but also to the processes that caused and materialised the change. As an example, consider a database record r created at point in time t0; an update u to that record at time t1 causes it to have a value r’. In terms of provenance, we do not only want to record the snapshots (t0, r and (t1, r’ but also the transformation u that when applied to (t0, r results in (t1, r’, that is u(t0, r = (t1, r’.

  16. Provenance Store Evaluation

    Energy Technology Data Exchange (ETDEWEB)

    Paulson, Patrick R.; Gibson, Tara D.; Schuchardt, Karen L.; Stephan, Eric G.

    2008-03-01

    Requirements for the provenance store and access API are developed. Existing RDF stores and APIs are evaluated against the requirements and performance benchmarks. The team’s conclusion is to use MySQL as a database backend, with a possible move to Oracle in the near-term future. Both Jena and Sesame’s APIs will be supported, but new code will use the Jena API

  17. The Long Way of Organizational Communication in Tourism: From Theory to Practice

    Directory of Open Access Journals (Sweden)

    Cristina STATE

    2015-06-01

    Full Text Available Organizational communication has become a topic on which increasingly more specialists express their views. Very few succed, however, to move from theory to practice, so that their attempt to be beneficial to it. Moreover, as a proverb (anonymously very well reveals, "... we communicate increasingly more, but we understand increasingly less" ... In this context, based on available statistics (which surprised and confused us in equal measure I aimed to analyze the extent to which beneficiaries of tourism units’ services are satisfied with the correspondence between their offer and the reality on the ground. Methodological, I turned in a first step to crowdsourcing. This is an alternative to get, as a result of outsourcing, required services and/or ideas by seeking contributions from large groups of people and/or communities turning to online resources and not to traditional employees or suppliers. This is the context in which I launched through a website accessible to all willing to participate in our research, a questionnaire aiming to evaluate the quality of organizational communication from tourism facilities. In a second step, I proceeded to the interpretation of the received responses checking, econometrically, through analysis of variance (ANOVA, the research hypotheses. Basically, I investigated the existing biunivocal relationship between the tourism facilities and the beneficiaries of their services, in order to identify and improve some external organizational communication trends, potentially generating performance effects as a direct result of improving customer relationship management. At the end of the work I formulated two proposals designed to reveal how and in what way can be reduced the distance (still huge that separates managerial theory from the practice of customer relationship in the tourism, hospitality and leisure industry.

  18. An ongoing collaborative teacher training through action research. A way of changing classroom practices

    Directory of Open Access Journals (Sweden)

    Raúl A. Barba-Martín

    2015-05-01

    Full Text Available The ongoing education training for teachers can be done through different models that could only report or also accompany the process of implementing innovations. The training through reflection processes is presented as essential to make changes in the classroom; also, if it is done collectively with other teachers or between centers, transformations will not only occur in the classroom, but in the whole context. One way leading to a collaborative ongoing education is through action research groups, considering a set of ethical practices whose characteristics allow participants to be trained according to their needs, and through support with other teachers, in order to transform the context. The research we present here is framed in a Teaching Innovation Project, University of Valladolid, through which teachers from three schools that have been trained in inclusive education through action research implementing in their classrooms interactive groups. This collaborative process played by teachers themselves has changed the thinking of teachers, their classroom and their educational contexts in which they work.

  19. Analysis of present water usage and management practice in nuclear recycle plants and potential ways to minimize environmental burden

    International Nuclear Information System (INIS)

    Shah, B.V.

    2008-01-01

    Water input and output balance along with its composition around Nuclear Recycle Plants (NRP) will give the environmental burden, however including intermediate steps required for its treatment or usage or to qualify for discharge to environment will give more holistic and real environmental burden. Major water uses in order of their consumption in one part of NRP called reprocessing plant are: 1. Production of steam mainly for evaporation and which is used in open loop. 2. For making process solution mainly 0.01N strip 1-2N scrub. 3. Wash and cleaning usage. To reduce the environmental burden of chemical and activity discharge through water, a large amount of water, fuel, chemical and capital investment in form of various system are used in general and at present NRP is no exception. Better processes and management practice could be evolved around proven method of recover and reuse near the source. Root cause of present large usage of water is in general and specifically NRP is extra safe approach in reuse. Recover quality can never meet fresh quality criteria and hence reuse is not permitted or avoided taking cover of some hypothetical scenario conditions. Thus a major contribution can come from more practical, realistic and objectively evolved management policy on reuse criteria or guidelines. In this situation, development effort and investment can be prioritized for development of recovery processes or proven or developed system get application in plant scale and benefit can start accruing in the form of reduced environmental burden

  20. From Provenance Standards and Tools to Queries and Actionable Provenance

    Science.gov (United States)

    Ludaescher, B.

    2017-12-01

    The W3C PROV standard provides a minimal core for sharing retrospective provenance information for scientific workflows and scripts. PROV extensions such as DataONE's ProvONE model are necessary for linking runtime observables in retrospective provenance records with conceptual-level prospective provenance information, i.e., workflow (or dataflow) graphs. Runtime provenance recorders, such as DataONE's RunManager for R, or noWorkflow for Python capture retrospective provenance automatically. YesWorkflow (YW) is a toolkit that allows researchers to declare high-level prospective provenance models of scripts via simple inline comments (YW-annotations), revealing the computational modules and dataflow dependencies in the script. By combining and linking both forms of provenance, important queries and use cases can be supported that neither provenance model can afford on its own. We present existing and emerging provenance tools developed for the DataONE and SKOPE (Synthesizing Knowledge of Past Environments) projects. We show how the different tools can be used individually and in combination to model, capture, share, query, and visualize provenance information. We also present challenges and opportunities for making provenance information more immediately actionable for the researchers who create it in the first place. We argue that such a shift towards "provenance-for-self" is necessary to accelerate the creation, sharing, and use of provenance in support of transparent, reproducible computational and data science.

  1. Practical Ways Internalization Tematik by Students in Learning Through Peer Teaching in PGSD FKIP at Tanjungpura University

    Directory of Open Access Journals (Sweden)

    Tahmid Sabri

    2017-03-01

    Full Text Available A practical way internalize value on elementary school children is very strategic, this study aims to provide the best solution. The method used descriptive through class actions done by the students in a way peer teaching. The findings showed that the Internalization of learning design can practically be done well. Application of learning can be applied Effectively, seen from the way of practicality Internalization in learning and provide a significant positive impact on personality value on individual students toward the creation of Piety, noble, intelligent, skilled, creative, discipline, independence, responsibility and democratic, this achievement can not be separated from the various constraints experienced by teachers, but can be Overcome, so that the meaningfulness of students in learning remains created. This study is expected to be the authorized capital on the development of thematic learning in primary school.

  2. Aggregation by Provenance Types: A Technique for Summarising Provenance Graphs

    Directory of Open Access Journals (Sweden)

    Luc Moreau

    2015-04-01

    Full Text Available As users become confronted with a deluge of provenance data, dedicated techniques are required to make sense of this kind of information. We present Aggregation by Provenance Types, a provenance graph analysis that is capable of generating provenance graph summaries. It proceeds by converting provenance paths up to some length k to attributes, referred to as provenance types, and by grouping nodes that have the same provenance types. The summary also includes numeric values representing the frequency of nodes and edges in the original graph. A quantitative evaluation and a complexity analysis show that this technique is tractable; with small values of k, it can produce useful summaries and can help detect outliers. We illustrate how the generated summaries can further be used for conformance checking and visualization.

  3. Economic impact of ecosystem services provided by ecologically sustainable roadside right of way vegetation management practices.

    Science.gov (United States)

    2014-03-01

    The economic value of runoff prevention, carbon sequestration, pollination and other insect services, air quality, : invasive species resistance, and aesthetics was estimated for Floridas State Highway System roadside right-of-way (ROW) ecosystem ...

  4. Loneliness at the Top: Ten Ways Medical Practice Administrators Can Manage the Isolation of Leadership.

    Science.gov (United States)

    Hills, Laura

    2016-01-01

    Medical practice.managers spend their days surrounded by people, so the last thing they may expect to feel is lonely. Yet for many, being the manager of a medical practice can lead to feelings of isolation from the rest of the staff, and loneliness. This article explores the many reasons that managing a medical practice can be a lonely business. It considers the risks when a practice manager's loneliness goes unchecked, both to the individual and to the practice. It suggests 10 effective and healthy strategies for preventing and managing the leadership loneliness that medical practice managers sometimes experience. Next, this article argues that acceptance is the first step in overcoming loneliness in the workplace. It offers guidance for medical practice managers who wish to help lonely members of their teams. It describes the benefits of having a confidant to help support the medical practice manager, and the characteristics of an ideal confidant. Finally, this article suggests a strategy for combatting loneliness by interacting with the staff more frequently.

  5. Ways of knowing: Passionate humility and reflective practice in research and management

    NARCIS (Netherlands)

    Yanow, D.

    2009-01-01

    For all the attention that the concept of reflective practice has attracted, very little has been said concerning what might incline someone to be open to engage in it. My concern in this essay is with two characteristics of professional, including administrative, practice-a language of certainty

  6. Teacher and Student Language Practices and Ideologies in a Third-Grade Two-Way Dual Language Program Implementation

    Science.gov (United States)

    Henderson, Kathryn I.; Palmer, Deborah K.

    2015-01-01

    This article provides an in-depth exploration of the language ecologies of two classrooms attempting to implement a two-way dual language (TWDL) program and its mediating conditions. Drawing on ethnographic methods and a sociocultural understanding of language, we examined both teachers' and students' language ideologies and language practices,…

  7. Exploring relations among mindfulness facets and various meditation practices: Do they work in different ways?

    Science.gov (United States)

    Cebolla, Ausiàs; Campos, Daniel; Galiana, Laura; Oliver, Amparo; Tomás, Jose Manuel; Feliu-Soler, Albert; Soler, Joaquim; García-Campayo, Javier; Demarzo, Marcelo; Baños, Rosa María

    2017-03-01

    Several meditation practices are associated with mindfulness-based interventions but little is known about their specific effects on the development of different mindfulness facets. This study aimed to assess the relations among different practice variables, types of meditation, and mindfulness facets. The final sample was composed of 185 participants who completed an on-line survey, including information on the frequency and duration of each meditation practice, lifetime practice, and the Five Facet Mindfulness Questionnaire. A Multiple Indicators Multiple Causes structural model was specified, estimated, and tested. Results showed that the Model's overall fit was adequate: χ 2 (1045)=1542.800 (p<0.001), CFI=0.902, RMSEA=0.042. Results revealed that mindfulness facets were uniquely related to the different variables and types of meditation. Our findings showed the importance of specific practices in promoting mindfulness, compared to compassion and informal practices, and they pointed out which one fits each mindfulness facet better. Copyright © 2017 Elsevier Inc. All rights reserved.

  8. Practical Ways to Integrate Literature into Spanish for International Business Courses

    Science.gov (United States)

    Torres, German

    2004-01-01

    In general, language for business courses do not include the study of literary texts, despite significant research that demonstrates the value of literature as a way to gain competence in a foreign culture. Carefully selected, adapted, and programmed as a culture complement to the main textbook, literary texts can be a valuable resource in the…

  9. Managing Activity in Patients Who Have Diabetes. Practical Ways to Incorporate Exercise into Lifestyle.

    Science.gov (United States)

    Taunton, Jack E.; McCargar, Linda

    1995-01-01

    Diabetes control involves the appropriate balance of exercise, diet, and medication. Regular exercise has many benefits for people with diabetes. Physicians can educate patients about ways to regulate and monitor blood glucose before, during, and after workouts. Patients need to understand the effects of exercise and diet on insulin requirements.…

  10. Empowering Provenance in Data Integration

    Science.gov (United States)

    Kondylakis, Haridimos; Doerr, Martin; Plexousakis, Dimitris

    The provenance of data has recently been recognized as central to the trust one places in data. This paper presents a novel framework in order to empower provenance in a mediator based data integration system. We use a simple mapping language for mapping schema constructs, between an ontology and relational sources, capable to carry provenance information. This language extends the traditional data exchange setting by translating our mapping specifications into source-to-target tuple generating dependencies (s-t tgds). Then we define formally the provenance information we want to retrieve i.e. annotation, source and tuple provenance. We provide three algorithms to retrieve provenance information using information stored on the mappings and the sources. We show the feasibility of our solution and the advantages of our framework.

  11. Practical Ways Psychotherapy Can Support Physical Healthcare Experiences for Male Survivors of Childhood Sexual Abuse

    Science.gov (United States)

    Hovey, Angela; Stalker, Carol A.; Schachter, Candice L.; Teram, Eli; Lasiuk, Gerri

    2011-01-01

    Many survivors of child sexual abuse who engage in psychotherapy also experience physical health problems. This article summarizes the findings of a multiphased qualitative study about survivors' experiences in healthcare settings. The study informed the development of the "Handbook on Sensitive Practice for Health Care Practitioners: Lessons…

  12. New Ways of Being a Man: "Positive" Hegemonic Masculinity in Meditation-based Communities of Practice

    OpenAIRE

    Lomas, T.; Cartwright, T.; Edginton, T.; Ridge, D.

    2016-01-01

    Connell’s concept of hegemonic masculinity is often reduced to a singular construct, consisting of “toxic” traits viewed as detrimental to well-being. However, the concept allows for variation in hegemony, including the possibility of forms more conducive to well-being. Through in-depth interviews with thirty male meditators in the United Kingdom, we explored the social dimensions of meditation practice to examine its potential implications for well-being. Most participants became involved wi...

  13. Systemic mistakes in hand hygiene practice in Ukraine: detection, consequences and ways of elimination

    Science.gov (United States)

    Klymenko, Iryna; Kampf, Günter

    2015-01-01

    Aim: Every year, millions of people around the world suffer from different infectious diseases, considerable part of which are hospital-acquired infections. WHO considers hand hygiene as a priority measure aimed to reduce the level of infection. We evaluated various aspects related to the situational behavior and prioritization regarding hand hygiene measures among the healthcare workers of Ukraine. Method: Identification of system mistakes in hand hygiene was carried out first of all by direct and indirect observation of the activities of medical and pharmaceutical personnel in their everyday practice as well as during their participation in trainings on routine hand hygiene. Questionnaires also were used to estimate the level of hand hygiene compliance of participants of the study. During this period 112 training courses, 315 master-classes and presentations on proper hand hygiene were realized. The target audience included health care workers of medical centers, clinics, maternity hospitals, health care organizations and staff of pharmacies and pharmaceutical manufacturing enterprises in all regions of Ukraine. 638 respondents took part in anonymous survey on hand hygiene practice. Results: The most common mistakes were to regard hand washing and hand disinfection equally, to wash hands before doing a hand disinfection, to neglect the five moments for hand hygiene and to ignore hand hygiene before and after wearing protective gloves. Practitioners, medical attendants, pharmacy and pharmaceutical industry workers highlighted the need for practical and understandable instructions of various hand hygiene procedures, including the clarification of the possible technical mistakes. This became a ground for us to create individual master classes on hand hygiene for each cluster of healthcare workers. Conclusions: Changing hand hygiene behavior and attitude is possible by beginning to observe clinical practice and by involving healthcare workers in teaching and training

  14. Textiles in the Material Practice of Architects – Opportunities, Challenges and Ways of Stimulating Use

    DEFF Research Database (Denmark)

    Wærsted, Elisabeth Heimdal; Lenau, Torben Anker; Brandt, Eva

    of textiles. Core contributions include discussions of the definition of textiles in the context of architecture and of the place of textiles in material classifications as well as a number of interactive experiments that may easily be conducted by architectural firms, contributing with new knowledge on how......, even though it is to a limited extent, use textiles in their designs in different ways and in their design process and an awareness of opportunities with their use in architecture. However, four dilemmas and the high integration of material considerations in the architectural design process make...

  15. PRACTICE OF USING DIFFERENT WAYS OF ANALYSIS OF A FICTION WORK AT LITERARY READING LESSONS

    OpenAIRE

    Valeriy Syrotenko; Olena Bondarenko

    2017-01-01

    Analysis of a fiction work at school, in particular in primary school, is based on the methodological studies of the literary analysis, that envisages application of various ways of analysis of a literary text used for the adequate appreciation of its semantic and expressive features. This article is devoted exactly to this range of problems. Literary reading lessons in 2-4th forms set a task of forming schoolchildren’s literary competence, the integral part of which is their ability to an...

  16. Advanced Energy Retrofit Guide: Practical Ways to Improve Energy Performance; Grocery Stores (Revised) (Book)

    Energy Technology Data Exchange (ETDEWEB)

    Hendron, B.

    2013-07-01

    The U.S. Department of Energy developed the Advanced Energy Retrofit Guides (AERGs) to provide specific methodologies, information, and guidance to help energy managers and other stakeholders successfully plan and execute energy efficiency improvements. Detailed technical discussion is fairly limited in these guides. Instead, we emphasize actionable information, practical methodologies, diverse case studies, and unbiased evaluations of the most promising retrofit measures for each building type. A series of AERGs is under development, addressing key segments of the commercial building stock. Grocery stores were selected as one of the highest priority sectors, because they represent one of the most energy-intensive market segments.

  17. The Buywell Way: seven essential practices of a highly successful multi-channel e-tailer

    Directory of Open Access Journals (Sweden)

    Mary Tate

    2005-05-01

    Full Text Available After the dot-com bust there is considerable evidence that multi-channel retailers are more successful than purely on-line retailers. Multi-channel retailing is becoming mainstream and considerable research exists on successful multi-channel strategies. Despite this, some organisations are having more success than others with their multi-channel approach. We talked to the management of one of Australasia’s most successful multi-channel apparel and home-ware retailers about the theory and practice of multi-channel retailing, with the aim of building on existing theory in multi-channel e-commerce.

  18. Integrating Technology into Teacher Preparation and Practice: A Two-way Mentoring Model

    Directory of Open Access Journals (Sweden)

    Jim Kerr

    2004-07-01

    Full Text Available This article reports on a pilot case study exploring the opportunity for authentic professional development in the use of technology. Self-selected pre-service and in- service teachers were paired so as to reinforce and enhance, firstly, their computer skill development and, secondly, their ability to integrate these same skills into classroom teaching practices. It was proposed that both groups of participants would derive benefit from these pairings. Results overwhelming support this and suggest (a a model for better preparing teacher candidates to be able to integrate computer skills into classroom programming and (b a new, perhaps more efficient, method of professional development for busy, dedicated classroom teachers.

  19. Said another way. Is the ADN graduate prepared to practice in community settings?

    Science.gov (United States)

    Percoco, T A

    1998-01-01

    The downsizing and closing of acute care facilities and the movement to community-based healthcare services are decreasing the need for RNs in acute care facilities. In the past, the associate-degree nurse (ADN) has filled the majority of positions in acute care. With the trend to provide health services in community setting, will the ADN be prepared for positions in community facilities? ADN educators must reevaluate how they are educating students for practice. The author reviews the 1995 recommendations from the Pew Health Professions Commission and relevant current directives from the National League for Nursing.

  20. Recording Process Documentation for Provenance

    NARCIS (Netherlands)

    Groth, P.T.; Moreau, L

    2009-01-01

    Scientific and business communities are adopting large-scale distributed systems as a means to solve a wide range of resource-intensive tasks. These communities also have requirements in terms of provenance. We define the provenance of a result produced by a distributed system as the process that

  1. PRACTICE OF USING DIFFERENT WAYS OF ANALYSIS OF A FICTION WORK AT LITERARY READING LESSONS

    Directory of Open Access Journals (Sweden)

    Valeriy Syrotenko

    2017-04-01

    Full Text Available Analysis of a fiction work at school, in particular in primary school, is based on the methodological studies of the literary analysis, that envisages application of various ways of analysis of a literary text used for the adequate appreciation of its semantic and expressive features. This article is devoted exactly to this range of problems. Literary reading lessons in 2-4th forms set a task of forming schoolchildren’s literary competence, the integral part of which is their ability to analyse various fiction works. We mean here a number of theoretic and methodological researches, nevertheless ways of analysis of the fiction text and methodology of its realization in primary school are not examined essentially. Therefore, we offer the following ways of analysis: character drawing, problem and thematic approach and holistic approach that are used taking into account the form (character drawing approach is the simplest one and it is suitable for the 2nd year pupils, while holistic one can be appropriate for the 4th year pupils and genre of work. A verse by P. Voronko “In the field there is a green house” (the 2nd form is studied with the help of character drawing because the story of the verse (a little bear misbehaves because he does not want to sleep, and his mother sings him a lullaby is close to a 7-8-year-old child by its semantic genre; moreover, there are a few characters in the verse, and they require an additional discussion. Therefore, for creating the proper emotional atmosphere in the class one should consider the following methodical forms of work: heuristic conversation, connecting the little bear’s dominant traits of the character, his mother, and grandfather Sleep, that will help children understand the main traits of every character, their role in work, and also the originality of the verse genre. The work ends with a questionnaire children are suggested working in pairs to analyse the behavior of a child in various

  2. A practical two-way system of quantum key distribution with untrusted source

    International Nuclear Information System (INIS)

    Chen Ming-Juan; Liu Xiang

    2011-01-01

    The most severe problem of a two-way 'plug-and-play' (p and p) quantum key distribution system is that the source can be controlled by the eavesdropper. This kind of source is defined as an “untrusted source . This paper discusses the effects of the fluctuation of internal transmittance on the final key generation rate and the transmission distance. The security of the standard BB84 protocol, one-decoy state protocol, and weak+vacuum decoy state protocol, with untrusted sources and the fluctuation of internal transmittance are studied. It is shown that the one-decoy state is sensitive to the statistical fluctuation but weak+vacuum decoy state is only slightly affected by the fluctuation. It is also shown that both the maximum secure transmission distance and final key generation rate are reduced when Alice's laboratory transmittance fluctuation is considered. (general)

  3. Advanced Energy Retrofit Guide: Practical Ways to Improve Energy Performance, K-12 Schools (Book)

    Energy Technology Data Exchange (ETDEWEB)

    2013-12-01

    The U.S. Department of Energy developed the Advanced Energy Retrofit Guides (AERGs) to provide specific methodologies, information, and guidance to help energy managers and other stakeholders plan and execute energy efficiency improvements. Detailed technical discussion is fairly limited. Instead, we emphasize actionable information, practical methodologies, diverse case studies, and unbiased evaluations of the most promising retrofit energy efficiency measures for each building type. A series of AERGs is under development, addressing key segments of the commercial building stock. K-12 schools were selected as one of the highest priority building sectors, because schools affect the lives of most Americans. They also represent approximately 8% of the energy use and 10% of the floor area in commercial buildings nationwide. U.S. K-12 school districts spend more than $8 billion each year on energy - more than they spend on computers and textbooks combined. Most occupy older buildings that often have poor operational performance - more than 30% of schools were built before 1960. The average age of a school is about 42 years - which is nearly the expected serviceable lifespan of the building. K-12 schools offer unique opportunities for deep, cost-effective energy efficiency improvements, and this guide provides convenient and practical guidance for exploiting these opportunities in the context of public, private, and parochial schools.

  4. The STROBE statement and neuropsychology: lighting the way toward evidence-based practice.

    Science.gov (United States)

    Loring, David W; Bowden, Stephen C

    2014-01-01

    Reporting appropriate research detail across clinical disciplines is often inconsistent or incomplete. Insufficient report detail reduces confidence in findings, makes study replication more difficult, and decreases the precision of data available for critical review including meta-analysis. In response to these concerns, cooperative attempts across multiple specialties have developed explicit research reporting standards to guide publication detail. These recommendations have been widely adopted by high impact medical journals, but have not yet been widely embraced by neuropsychology. The STROBE Statement (STrengthening the Reporting of Observational studies in Epidemiology) is particularly relevant to neuropsychology since clinical research is often based on non-funded studies of patient samples. In this paper we describe the STROBE Statement and demonstrate how STROBE criteria, applied to reporting of neuropsychological findings, will maintain neuropsychology's position as a leader in quantifying brain-behavior relationships. We also provide specific recommendations for data reporting and disclosure of perceived conflicts of interest that will further enhance reporting transparency for possible perceived sources of bias. In an era in which evidence-based practice assumes an increasingly prominent role, improved reporting standards will promote better patient care, assist in developing quality practice guidelines, and ensure that neuropsychology remains a vigorous discipline in the clinical neurosciences that consciously aspires to high methodological rigor.

  5. Practical way to avoid spurious geometrical contributions in Brillouin light scattering experiments at variable scattering angles.

    Science.gov (United States)

    Battistoni, Andrea; Bencivenga, Filippo; Fioretto, Daniele; Masciovecchio, Claudio

    2014-10-15

    In this Letter, we present a simple method to avoid the well-known spurious contributions in the Brillouin light scattering (BLS) spectrum arising from the finite aperture of collection optics. The method relies on the use of special spatial filters able to select the scattered light with arbitrary precision around a given value of the momentum transfer (Q). We demonstrate the effectiveness of such filters by analyzing the BLS spectra of a reference sample as a function of scattering angle. This practical and inexpensive method could be an extremely useful tool to fully exploit the potentiality of Brillouin acoustic spectroscopy, as it will easily allow for effective Q-variable experiments with unparalleled luminosity and resolution.

  6. Advanced Energy Retrofit Guide (AERG): Practical Ways to Improve Energy Performance; Healthcare Facilities (Book)

    Energy Technology Data Exchange (ETDEWEB)

    Hendron, R.; Leach, M.; Bonnema, E.; Shekhar, D.; Pless, S.

    2013-09-01

    The Advanced Energy Retrofit Guide for Healthcare Facilities is part of a series of retrofit guides commissioned by the U.S. Department of Energy. By presenting general project planning guidance as well as detailed descriptions and financial payback metrics for the most important and relevant energy efficiency measures (EEMs), the guides provide a practical roadmap for effectively planning and implementing performance improvements in existing buildings. The Advanced Energy Retrofit Guides (AERGs) are intended to address key segments of the U.S. commercial building stock: retail stores, office buildings, K-12 schools, grocery stores, and healthcare facilities. The guides' general project planning considerations are applicable nationwide; the energy and cost savings estimates for recommended EEMs were developed based on energy simulations and cost estimates for an example hospital tailored to five distinct climate regions. These results can be extrapolated to other U.S. climate zones. Analysis is presented for individual EEMs, and for packages of recommended EEMs for two project types: existing building commissioning projects that apply low-cost and no-cost measures, and whole-building retrofits involving more capital-intensive measures.

  7. Community gardening in poor neighborhoods in France: A way to re-think food practices?

    Science.gov (United States)

    Martin, Pauline; Consalès, Jean-Noël; Scheromm, Pascale; Marchand, Paul; Ghestem, Florence; Darmon, Nicole

    2017-09-01

    Social inequalities in diet are attributed to sociocultural determinants, economic constraints, and unequal access to healthy food. Fruits and vegetables are lacking in the diets of disadvantaged populations. The objective was to test the hypothesis that, in poor neighborhoods, community gardeners will have larger supply of healthy food, especially fruit and vegetables, than non-gardeners. We examined community gardens from the perspective of production, economics and nutrition, and social and symbolic dimensions, through multidisciplinary investigations involving women with access to a community garden plot in a poor neighborhood of Marseille, France. Gardeners' monthly household food supplies (purchases and garden production) were analyzed and compared with those of women with a similar socio-economic profile living in the same neighborhoods, without access to a garden. Twenty-one gardeners participated. Only eleven of them harvested during the month of the study, and the amount they collected averaged 53 g of produce per household member per day. Whether they harvested or not, most gardeners gave preference to diversity, taste and healthiness of produce over quantity produced. Interviews revealed a value assigned to social, cultural and symbolic dimensions: pride in producing and cooking their own produce, related self-esteem, and sharing their produce at the meal table. The only significant difference between the food supplies of gardener and non-gardener households was seen for fruit and vegetables (369 vs. 211 g/d per person). This difference was due to larger purchases of fruit and vegetables, and not to higher quantities produced. In spite of the cross-sectional nature of our study and the small quantities harvested, our results suggest that having access to a community garden could encourage socio-economically disadvantaged women to adopt dietary practices that more closely meet dietary recommendations. Copyright © 2017 Elsevier Ltd. All rights reserved.

  8. Data Provenance and Data Management in eScience

    CERN Document Server

    Bai, Quan; Giugni, Stephen; Williamson, Darrell; Taylor, John

    2013-01-01

    eScience allows scientific research to be carried out in highly distributed environments. The complex nature of the interactions in an eScience infrastructure, which often involves a range of instruments, data, models, applications, people and computational facilities, suggests there is a need for data provenance and data management (DPDM). The W3C Provenance Working Group defines the provenance of a resource as a “record that describes entities and processes involved in producing and delivering or otherwise influencing that resource”. It has been widely recognised that provenance is a critical issue to enable sharing, trust, authentication and reproducibility of eScience process.   Data Provenance and Data Management in eScience identifies the gaps between DPDM foundations and their practice within eScience domains including clinical trials, bioinformatics and radio astronomy. The book covers important aspects of fundamental research in DPDM including provenance representation and querying. It also expl...

  9. Provenance an introduction to PROV

    CERN Document Server

    Moreau, Luc

    2013-01-01

    The World Wide Web is now deeply intertwined with our lives, and has become a catalyst for a data deluge, making vast amounts of data available online, at a click of a button. With Web 2.0, users are no longer passive consumers, but active publishers and curators of data. Hence, from science to food manufacturing, from data journalism to personal well-being, from social media to art, there is a strong interest in provenance, a description of what influenced an artifact, a data set, a document, a blog, or any resource on the Web and beyond. Provenance is a crucial piece of information that can

  10. Practical Ways of Implementation of the Integrated Approach to Training Professionals in the Field of Professional Communication

    Directory of Open Access Journals (Sweden)

    Olena Zotova-Sadylo

    2018-05-01

    Full Text Available The purpose of the article is to outline the ways of practical implementation of the integrated approach to the training of future specialists, in particular, in the aspect of effective professional communication in native and foreign languages. The analysis of scientific research convincingly proves that the perspective of training specialists, in particular, in the aspect of intercultural business communication, is the direction of integration of the humanitarian knowledge into a professional plane, which gives the opportunity to respond adequately to the challenges of the modern labour market and students’ needs. The article has a practical orientation, therefore theoretical aspects of the research are accompanied by the author’s methodical developments, the content of which is universal and can be used in the process of teaching students of different specialties in both the native and foreign (English languages. Their aim is to help students to acquire sufficient and high levels of theoretical knowledge and practical skills and skills of professional business communication / intercultural business communication. That is what makes it possible to determine the trends of teacher’s pedagogical activity, in particular, the use of modern interactive pedagogical technologies that combine individual and collective forms of work, for example, mixed learning technology, “flip-class”, and personally oriented interaction with students. The newest technologies make students face such tasks, which are not always possible to solve in the lecture-room, sometimes they are designed for consistent co-operation with lecturers of narrow-professional subjects, business organizations and individual non-tutor work. Approbation has confirmed the expediency of the proposed methods in high school and their perspective in the preparation of a competitive specialist.

  11. Intimate partner violence and ways of coping with stress: cross-sectional survey of female patients in Russian general practice.

    Science.gov (United States)

    Lokhmatkina, Natalia V; Agnew-Davies, Roxane; Costelloe, Ceire; Kuznetsova, Olga Yu; Nikolskaya, Irina M; Feder, Gene S

    2015-04-01

    Despite World Health Organization guidelines on health service responses to intimate partner violence (IPV) against women general practitioners (GPs) often overlook the problem. Training on IPV addresses GPs' barriers to asking women patients about abuse and responding appropriately. One of the barriers is stereotype of women as passive victims. Little is known about coping behaviour of women patients with a history of IPV. The objectives are (i) to compare problem- and emotion-focused coping used by patients who have experienced IPV with those who have not; (ii) to examine whether greater coping resources (health, education, employment and income) would be associated with more problem-focused coping. The Russian Ways of Coping Questionnaire was administered to every fifth woman who participated in a cross-sectional survey on IPV prevalence in 24 St Petersburg general practices. Linear regression was used (n = 159) to test associations between life-time IPV, coping resources and ways of coping. Mean problem-focused coping scores were 0.2-4.7 units higher in those patients who have experienced IPV compared with those who have not [95% confidence interval (CI): -4.2, 11.9; P = 0.16-0.92], while mean emotion-focused coping scores were 2.5-4.2 units higher (95% CI: -3.0, 11.0; P = 0.12-0.57). After adjustment for coping resources there was no evidence for an association between IPV and problem-focused coping. Patients who have experienced IPV use as much problem-focused and emotion-focused coping, as those patients who have not experienced IPV. These findings should be incorporated into training on IPV to address GPs' stereotypes towards patients who have experienced IPV. © The Author 2015. Published by Oxford University Press. All rights reserved. For permissions, please e-mail: journals.permissions@oup.com.

  12. Logical provenance in data-oriented workflows?

    KAUST Repository

    Ikeda, R.

    2013-04-01

    We consider the problem of defining, generating, and tracing provenance in data-oriented workflows, in which input data sets are processed by a graph of transformations to produce output results. We first give a new general definition of provenance for general transformations, introducing the notions of correctness, precision, and minimality. We then determine when properties such as correctness and minimality carry over from the individual transformations\\' provenance to the workflow provenance. We describe a simple logical-provenance specification language consisting of attribute mappings and filters. We provide an algorithm for provenance tracing in workflows where logical provenance for each transformation is specified using our language. We consider logical provenance in the relational setting, observing that for a class of Select-Project-Join (SPJ) transformations, logical provenance specifications encode minimal provenance. We have built a prototype system supporting the features and algorithms presented in the paper, and we report a few preliminary experimental results. © 2013 IEEE.

  13. Provenance management in Swift with implementation details.

    Energy Technology Data Exchange (ETDEWEB)

    Gadelha, L. M. R; Clifford, B.; Mattoso, M.; Wilde, M.; Foster, I. (Mathematics and Computer Science); ( CLS-CI); (Federal Univ. of Rio de Janeiro); (National Lab. for Scientific Computing, Brazil); (Univ. of Chicago)

    2011-04-01

    The Swift parallel scripting language allows for the specification, execution and analysis of large-scale computations in parallel and distributed environments. It incorporates a data model for recording and querying provenance information. In this article we describe these capabilities and evaluate interoperability with other systems through the use of the Open Provenance Model. We describe Swift's provenance data model and compare it to the Open Provenance Model. We also describe and evaluate activities performed within the Third Provenance Challenge, which consisted of implementing a specific scientific workflow, capturing and recording provenance information of its execution, performing provenance queries, and exchanging provenance information with other systems. Finally, we propose improvements to both the Open Provenance Model and Swift's provenance system.

  14. File Level Provenance Tracking in CMS

    CERN Document Server

    Jones, C D; Paterno, M; Sexton-Kennedy, L; Tanenbaum, W; Riley, D S

    2009-01-01

    The CMS off-line framework stores provenance information within CMS's standard ROOT event data files. The provenance information is used to track how each data product was constructed, including what other data products were read to do the construction. We will present how the framework gathers the provenance information, the efforts necessary to minimise the space used to store the provenance in the file and the tools that will be available to use the provenance.

  15. Provenance data in social media

    CERN Document Server

    Barbier, Geoffrey; Gundecha, Pritam

    2013-01-01

    Social media shatters the barrier to communicate anytime anywhere for people of all walks of life. The publicly available, virtually free information in social media poses a new challenge to consumers who have to discern whether a piece of information published in social media is reliable. For example, it can be difficult to understand the motivations behind a statement passed from one user to another, without knowing the person who originated the message. Additionally, false information can be propagated through social media, resulting in embarrassment or irreversible damages. Provenance data

  16. Consumer-Based Physical Activity Monitor as a Practical Way to Measure Walking Intensity During Inpatient Stroke Rehabilitation.

    Science.gov (United States)

    Klassen, Tara D; Semrau, Jennifer A; Dukelow, Sean P; Bayley, Mark T; Hill, Michael D; Eng, Janice J

    2017-09-01

    Identifying practical ways to accurately measure exercise intensity and dose in clinical environments is essential to advancing stroke rehabilitation. This is especially relevant in monitoring walking activity during inpatient rehabilitation where recovery is greatest. This study evaluated the accuracy of a readily available consumer-based physical activity monitor during daily inpatient stroke rehabilitation physical therapy sessions. Twenty-one individuals admitted to inpatient rehabilitation were monitored for a total of 471 one-hour physical therapy sessions which consisted of walking and nonwalking therapeutic activities. Participants wore a consumer-based physical activity monitor (Fitbit One) and the gold standard for assessing step count (StepWatch Activity Monitor) during physical therapy sessions. Linear mixed modeling was used to assess the relationship of the step count of the Fitbit to the StepWatch Activity Monitor. Device accuracy is reported as the percent error of the Fitbit compared with the StepWatch Activity Monitor. A strong relationship (slope=0.99; 95% confidence interval, 0.97-1.01) was found between the number of steps captured by the Fitbit One and the StepWatch Activity Monitor. The Fitbit One had a mean error of 10.9% (5.3) for participants with walking velocities 0.8 m/s. This study provides preliminary evidence that the Fitbit One, when positioned on the nonparetic ankle, can accurately measure walking steps early after stroke during inpatient rehabilitation physical therapy sessions. URL: https://www.clinicaltrials.gov. Unique identifier: NCT01915368. © 2017 American Heart Association, Inc.

  17. Finding the limit of diverging components in three-way Candecomp/Parafac : A demonstration of its practical merits

    NARCIS (Netherlands)

    Stegeman, Alwin

    Three-way Candecomp/Parafac (CP) is a three-way generalization of principal component analysis (PCA) for matrices. Contrary to PCA, a CP decomposition is rotationally unique under mild conditions. However, a CP analysis may be hampered by the non-existence of a best-fitting CP decomposition with R≤2

  18. Audiopodcasts im Biochemiepraktikum – Kostengünstiges eLearning in bewährtem Hörfunkformat [Audio podcasts in practical courses in biochemistry – cost-efficient e-learning in a well-proven format from radio broadcasting

    OpenAIRE

    Münch-Harrach, Dieter; Hampe, Wolfgang; Kothe, Christian

    2013-01-01

    Introduction: Audio podcasts are an e-learning format that may help to motivate students to deal with the contents of medical education more intensely. We adopted a well-proven format from radio broadcasting, the radio documentary, to direct the listeners' attention to information about practical courses in biochemistry over a period of 20 minutes at most. Information, original sounds, and a specific atmosphere allow listeners to perceive the contents intensely.Method: In order to organise ...

  19. Logical provenance in data-oriented workflows?

    KAUST Repository

    Ikeda, R.; Das Sarma, Akash; Widom, J.

    2013-01-01

    for general transformations, introducing the notions of correctness, precision, and minimality. We then determine when properties such as correctness and minimality carry over from the individual transformations' provenance to the workflow provenance. We

  20. Combining User Reputation and Provenance Analysis for Trust Assessment

    NARCIS (Netherlands)

    Ceolin, D.; Groth, P.T.; Maccatrozzo, V.; Fokkink, W.J.; van Hage, W.R.; Nottamkandath, A.

    2016-01-01

    Trust is a broad concept that in many systems is often reduced to user reputation alone. However, user reputation is just one way to determine trust. The estimation of trust can be tackled from other perspectives as well, including by looking at provenance. Here, we present a complete pipeline for

  1. Restful Implementation of Catalogue Service for Geospatial Data Provenance

    Science.gov (United States)

    Jiang, L. C.; Yue, P.; Lu, X. C.

    2013-10-01

    Provenance, also known as lineage, is important in understanding the derivation history of data products. Geospatial data provenance helps data consumers to evaluate the quality and reliability of geospatial data. In a service-oriented environment, where data are often consumed or produced by distributed services, provenance could be managed by following the same service-oriented paradigm. The Open Geospatial Consortium (OGC) Catalogue Service for the Web (CSW) is used for the registration and query of geospatial data provenance by extending ebXML Registry Information Model (ebRIM). Recent advance of the REpresentational State Transfer (REST) paradigm has shown great promise for the easy integration of distributed resources. RESTful Web Service aims to provide a standard way for Web clients to communicate with servers based on REST principles. The existing approach for provenance catalogue service could be improved by adopting the RESTful design. This paper presents the design and implementation of a catalogue service for geospatial data provenance following RESTful architecture style. A middleware named REST Converter is added on the top of the legacy catalogue service to support a RESTful style interface. The REST Converter is composed of a resource request dispatcher and six resource handlers. A prototype service is developed to demonstrate the applicability of the approach.

  2. Knowledge Creation as an Approach to Facilitating Evidence Informed Practice: Examining Ways to Measure the Success of Using This Method with Early Years Practitioners in Camden (London)

    Science.gov (United States)

    Brown, Chris; Rogers, Sue

    2015-01-01

    This paper has three key aims. First it examines the authors' attempts to use knowledge creation activity as a way of developing evidence informed practice amongst a learning community of 36 early years practitioners in the London Borough of Camden. Second, it seeks to illustrate how the authors approached the idea of measuring evidence use and…

  3. The universal, collaborative and dynamic model of specialist and advanced nursing and midwifery practice: A way forward?

    Science.gov (United States)

    O'Connor, Laserina; Casey, Mary; Smith, Rita; Fealy, Gerard M; Brien, Denise O'; O'Leary, Denise; Stokes, Diarmuid; McNamara, Martin S; Glasgow, Mary Ellen; Cashin, Andrew

    2018-03-01

    To inform and guide the development of a future model of specialist and advanced nursing and midwifery practice. There is a sizable body of empirical literature supporting the unique contributions of specialist and advanced practice roles to health care. However, there is very little international evidence to inform the integration of a future model for advanced or specialist practice in the Irish healthcare system. A qualitative study was conducted to initiate this important area of inquiry. Purposive sampling was used to generate a sample of informants (n = 15) for the interviews. Nurses and midwives working in specialist and advanced practice and participants from other areas such as legislative, regulatory, policy, medicine and education were included in the sampling frame. Arguments for a new model of specialist and advanced practice were voiced. A number of participants proposed that flexibility within specialist and advanced practitioner career pathways was essential. Otherwise, there existed the possibility of being directed into specialised "silos," precluding movement to another area of integrated practice. Future specialist and advanced practice education programmes need to include topics such as the development of emotional and political intelligence. The contribution of specialist and advanced practice roles to the health service includes providing rapid access to care, seamless patient flow across services, early discharge and lead coordinator of the patient's care trajectory. There was a recommendation of moving towards a universal model to cultivate specialist and advanced nurse and midwife practitioners. The model design has Universal application in a range of contexts "U." It is Collaborative in its inclusivity of all key stakeholders "C." The model is Dynamic pertinent to accommodating movement of nurses and midwives across health continua rather than plateauing in very specialised "silos" "D." © 2017 John Wiley & Sons Ltd.

  4. Economic impact of ecosystem services provided by ecologically sustainable roadside right of way vegetation management practices : [summary].

    Science.gov (United States)

    2014-03-01

    The Florida Department of Transportation (FDOT) : has approximately 186,121 acres of right-of-way : (ROW) for roads in the State Highway System : (SHS), about half of which are vegetated. As in : many states, turfgrass is often used to stabilize : so...

  5. 'There's so Much to It': The Ways Physiotherapy Students and Recent Graduates Experience Practice

    Science.gov (United States)

    Barradell, S.; Peseta, T.; Barrie, S.

    2018-01-01

    Health science courses aim to prepare students for the demands of their chosen profession by learning ways appropriate to that profession and the contexts they will work and live in. Expectations of what students should learn become re-contextualised and translated into entry-level curriculum, with students operating as a connection between what…

  6. Cropping practices manipulate abundance patterns of root and soil microbiome members paving the way to smart farming.

    Science.gov (United States)

    Hartman, Kyle; van der Heijden, Marcel G A; Wittwer, Raphaël A; Banerjee, Samiran; Walser, Jean-Claude; Schlaeppi, Klaus

    2018-01-16

    Harnessing beneficial microbes presents a promising strategy to optimize plant growth and agricultural sustainability. Little is known to which extent and how specifically soil and plant microbiomes can be manipulated through different cropping practices. Here, we investigated soil and wheat root microbial communities in a cropping system experiment consisting of conventional and organic managements, both with different tillage intensities. While microbial richness was marginally affected, we found pronounced cropping effects on community composition, which were specific for the respective microbiomes. Soil bacterial communities were primarily structured by tillage, whereas soil fungal communities responded mainly to management type with additional effects by tillage. In roots, management type was also the driving factor for bacteria but not for fungi, which were generally determined by changes in tillage intensity. To quantify an "effect size" for microbiota manipulation, we found that about 10% of variation in microbial communities was explained by the tested cropping practices. Cropping sensitive microbes were taxonomically diverse, and they responded in guilds of taxa to the specific practices. These microbes also included frequent community members or members co-occurring with many other microbes in the community, suggesting that cropping practices may allow manipulation of influential community members. Understanding the abundance patterns of cropping sensitive microbes presents the basis towards developing microbiota management strategies for smart farming. For future targeted microbiota management-e.g., to foster certain microbes with specific agricultural practices-a next step will be to identify the functional traits of the cropping sensitive microbes.

  7. Automated Generation of Technical Documentation and Provenance for Reproducible Research

    Science.gov (United States)

    Jolly, B.; Medyckyj-Scott, D.; Spiekermann, R.; Ausseil, A. G.

    2017-12-01

    Data provenance and detailed technical documentation are essential components of high-quality reproducible research, however are often only partially addressed during a research project. Recording and maintaining this information during the course of a project can be a difficult task to get right as it is a time consuming and often boring process for the researchers involved. As a result, provenance records and technical documentation provided alongside research results can be incomplete or may not be completely consistent with the actual processes followed. While providing access to the data and code used by the original researchers goes some way toward enabling reproducibility, this does not count as, or replace, data provenance. Additionally, this can be a poor substitute for good technical documentation and is often more difficult for a third-party to understand - particularly if they do not understand the programming language(s) used. We present and discuss a tool built from the ground up for the production of well-documented and reproducible spatial datasets that are created by applying a series of classification rules to a number of input layers. The internal model of the classification rules required by the tool to process the input data is exploited to also produce technical documentation and provenance records with minimal additional user input. Available provenance records that accompany input datasets are incorporated into those that describe the current process. As a result, each time a new iteration of the analysis is performed the documentation and provenance records are re-generated to provide an accurate description of the exact process followed. The generic nature of this tool, and the lessons learned during its creation, have wider application to other fields where the production of derivative datasets must be done in an open, defensible, and reproducible way.

  8. Launch Services, a Proven Model

    Science.gov (United States)

    Trafton, W. C.; Simpson, J.

    2002-01-01

    From a commercial perspective, the ability to justify "leap frog" technology such as reusable systems has been difficult to justify because the estimated 5B to 10B investment is not supported in the current flat commercial market coupled with an oversupply of launch service suppliers. The market simply does not justify investment of that magnitude. Currently, next generation Expendable Launch Systems, including Boeing's Delta IV, Lockheed Martin's Atlas 5, Ariane V ESCA and RSC's H-IIA are being introduced into operations signifying that only upgrades to proven systems are planned to meet the changes in anticipated satellite demand (larger satellites, more lifetime, larger volumes, etc.) in the foreseeable future. We do not see a new fleet of ELVs emerging beyond that which is currently being introduced, only continuous upgrades of the fleet to meet the demands. To induce a radical change in the provision of launch services, a Multinational Government investment must be made and justified by World requirements. The commercial market alone cannot justify such an investment. And if an investment is made, we cannot afford to repeat previous mistakes by relying on one system such as shuttle for commercial deployment without having any back-up capability. Other issues that need to be considered are national science and security requirements, which to a large extent fuels the Japanese, Chinese, Indian, Former Soviet Union, European and United States space transportation entries. Additionally, this system must support or replace current Space Transportation Economies with across-the-board benefits. For the next 10 to 20 years, Multinational cooperation will be in the form of piecing together launch components and infrastructure to supplement existing launch systems and reducing the amount of non-recurring investment while meeting the future requirements of the End-User. Virtually all of the current systems have some form of multinational participation: Sea Launch

  9. Sudetic larch in Germany - Results of provenance and progeny research

    Energy Technology Data Exchange (ETDEWEB)

    Weisgerber, H. [Forest Centre for Management Planning, Research and Ecology, Hann Muenden (Germany)

    1995-12-31

    There are only a few older sources of Sudetic larch in Germany. They distinguish themselves by outstanding growth and low susceptibility to canker. This impression was confirmed by results of provenance research. The Sudetic larch tested in comparison with numerous other provenances proved to be fast-growing, site-tolerant, to a large extent insusceptible to canker, with straight but also slightly to moderately curved stems. The Sudetic provenances behave remarkably uniformly as regards these characteristics. In addition to provenance research investigations have been going on for a long time in Germany into individual differences within the Sudetic larch populations. A report is given on the results of progeny tests from free and controlled pollination, using the example of a seed orchard consisting of 54 clones. We point also to possibilities for improving stem quality by selection steps. The results of provenance and progeny research on Sudetic larch are in the meantime being put to use to a large extent in practical forestry. The forest administrations of various federal lands recommend the use of reproductive material of Sudetic origin and from seed orchards. 20 refs, 3 figs

  10. Sudetic larch in Germany - Results of provenance and progeny research

    Energy Technology Data Exchange (ETDEWEB)

    Weisgerber, H [Forest Centre for Management Planning, Research and Ecology, Hann Muenden (Germany)

    1996-12-31

    There are only a few older sources of Sudetic larch in Germany. They distinguish themselves by outstanding growth and low susceptibility to canker. This impression was confirmed by results of provenance research. The Sudetic larch tested in comparison with numerous other provenances proved to be fast-growing, site-tolerant, to a large extent insusceptible to canker, with straight but also slightly to moderately curved stems. The Sudetic provenances behave remarkably uniformly as regards these characteristics. In addition to provenance research investigations have been going on for a long time in Germany into individual differences within the Sudetic larch populations. A report is given on the results of progeny tests from free and controlled pollination, using the example of a seed orchard consisting of 54 clones. We point also to possibilities for improving stem quality by selection steps. The results of provenance and progeny research on Sudetic larch are in the meantime being put to use to a large extent in practical forestry. The forest administrations of various federal lands recommend the use of reproductive material of Sudetic origin and from seed orchards. 20 refs, 3 figs

  11. Secure Location Provenance for Mobile Devices

    Science.gov (United States)

    2015-07-01

    A malicious user should not be able to hide a temporary off-track movement from the claimed location provenance. • A malicious user may want to...Seltzer, “Provenance-aware storage systems,” in Proc. of USENIX ATC. USENIX Association, May 2006, pp. 43–56. [48] D. Bhagwat, L. Chiticariu, W.-C. Tan

  12. Community of practice as a collective way of learning and development of practices and knowledge of the family health strategy: a theoretical study

    Directory of Open Access Journals (Sweden)

    Ana Ecilda Lima Ellery

    2012-06-01

    Full Text Available Objective: Present and discuss the contribution of the concept of Community of Practice (CP, while collective space of learning and development of knowledge and practice in multidisciplinary teams of Family Health Strategy. Methods: Theoretical study through nonsystematic literature reviews the theme of “Communities of Practice” in the work of social researchers Jean Lave and Etienne Wenger, who developed this concept, completed with studies on the same topic from the research in online databases. Results: A CP is characterized by a group of people who forged and got engaged in a common project, sharing a repertoire, which allowed communication between them. Several effects are attributed to the experienceof working together in a CP, such as the socialization of knowledge, the interprofessional collaboration and the development of an environment conducive to reflective practice, which facilitates the conflict mediation. The theory of CP requires a major change in theconception of learning. Unlike theories that consider learning as resulting mainly from the internal process of the person, as the cognitive, the CP’s theory conceives learning through the angle of social participation. The inter-relationship developed by the CP influences the learning process, negotiation of meaning and identity formation, which results from the fact of belonging to the community and from the meaning attributed to the collaborative. Conclusion: The formation of Community of Practice in Family Health Strategy can be adevice to facilitate the construction of interdisciplinary projects, expressed by the integration of knowledge and interprofessional collaboration.

  13. [Ways to an efficient and practicable hospital hygiene from the point of view of a hospital hygienist (author's transl)].

    Science.gov (United States)

    Langmaack, H; Annen, H; Daschner, F

    1977-04-01

    Hospitalepidemiology means surveillance, prevention andocntrol of nosocomial infections. Trying to succeed he has to search for possiblities which are both practical as well as efficient: 1. The infection control nurse (one for 300 beds), 2. a bacteriological labor is for the epidemiologist, which is able to perform routine control on certain areas in the hospital (kitchen, sterilisation etc.), 3. encironmental examinations if necessary to find sources and for teaching purposes, 4. training of hospital personal in prevention, recognizing nosocomial infections, performing methods of desinfections etc., 5. trying to cooperate with the clinician in chemotherapy (selection of antibiotics, prophylaxis etc.), 6. to develop a programm to collect datas about nosocomial infections by a computer and to analyse those datas afterwards, 7. collaborativ work in a infection control commitee.

  14. "We communicated that way for a reason": language practices and language ideologies among hearing adults whose parents are deaf.

    Science.gov (United States)

    Pizer, Ginger; Walters, Keith; Meier, Richard P

    2013-01-01

    Families with deaf parents and hearing children are often bilingual and bimodal, with both a spoken language and a signed one in regular use among family members. When interviewed, 13 American hearing adults with deaf parents reported widely varying language practices, sign language abilities, and social affiliations with Deaf and Hearing communities. Despite this variation, the interviewees' moral judgments of their own and others' communicative behavior suggest that these adults share a language ideology concerning the obligation of all family members to expend effort to overcome potential communication barriers. To our knowledge, such a language ideology is not similarly pervasive among spoken-language bilingual families, raising the question of whether there is something unique about family bimodal bilingualism that imposes different rights and responsibilities on family members than spoken-language family bilingualism does. This ideology unites an otherwise diverse group of interviewees, where each one preemptively denied being a "typical CODA [children of deaf adult]."

  15. Active Provenance in Data-intensive Research

    Science.gov (United States)

    Spinuso, Alessandro; Mihajlovski, Andrej; Filgueira, Rosa; Atkinson, Malcolm

    2017-04-01

    Scientific communities are building platforms where the usage of data-intensive workflows is crucial to conduct their research campaigns. However managing and effectively support the understanding of the 'live' processes, fostering computational steering, sharing and re-use of data and methods, present several bottlenecks. These are often caused by the poor level of documentation on the methods and the data and how users interact with it. This work wants to explore how in such systems, flexibility in the management of the provenance and its adaptation to the different users and application contexts can lead to new opportunities for its exploitation, improving productivity. In particular, this work illustrates a conceptual and technical framework enabling tunable and actionable provenance in data-intensive workflow systems in support of reproducible science. It introduces the concept of Agile data-intensive systems to define the characteristic of our target platform. It shows a novel approach to the integration of provenance mechanisms, offering flexibility in the scale and in the precision of the provenance data collected, ensuring its relevance to the domain of the data-intensive task, fostering its rapid exploitation. The contributions address aspects of the scale of the provenance records, their usability and active role in the research life-cycle. We will discuss the use of dynamically generated provenance types as the approach for the integration of provenance mechanisms into a data-intensive workflow system. Enabling provenance can be transparent to the workflow user and developer, as well as fully controllable and customisable, depending from their expertise and the application's reproducibility, monitoring and validation requirements. The API that allows the realisation and adoption of a provenance type is presented, especially for what concerns the support of provenance profiling, contextualisation and precision. An actionable approach to provenance

  16. Comparison of the theoretical and practical approaches to funding through the IPO way in the Czech capital market

    Directory of Open Access Journals (Sweden)

    Tomáš Meluzín

    2008-01-01

    Full Text Available Funding development of the company through the “Initial Public Offering” has a high representation globally, the Czech Republic unlike, and belongs to traditional methods of raising funds necessary for development of business in the developed capital markets. In the United States of America, Japan and in the Western Europe countries the method of company funding through IPO has been applying for several decades already. The first public stock offerings began to be applied in these markets in higher volumes from the beginning of the 60th of the last century. From that period importance of IPO goes up globally and the initial public stock offerings begin to be applied more and more even in the Central and Eastern European countries. In the conditions of the Czech capital market it is possible to identify only few companies, who attempted to funding through the IPO way at present. Greater part of the Czech companies still undergo the debit funding for financing their further development, namely in the form of bank loans. At the same time it is necessary to take into account, that the debit financing starts, thanks to so-called mortgage crisis in the USA, causing problems and mark up. Admittance of a stakeholder into the company is not convenient for all and thus IPO represents an interesting option of how to acquire a no arrear capital. The aim of this article is to determine the IPO concept, analyse its development at the world stockholder markets, describe the reasons for IPO implementation according to the contemporary professional literature and compare it with the approaches to this particular form of funding with companies that have already implemented IPO at the Czech capital market.

  17. An investigation of the ways in which public health nutrition policy and practices can address climate change.

    Science.gov (United States)

    Sulda, Heidi; Coveney, John; Bentley, Michael

    2010-03-01

    To develop a framework to guide action in the public health nutrition workforce to develop policies and practices addressing factors contributing to climate change. Action/consultative research. Interviews - South Australia, questionnaire - Australia. Interviews - key informants (n 6) were from various government, academic and non-government positions, invited through email. Questionnaire - participants were members of the public health nutrition workforce (n 186), recruited to the study through emails from public health nutrition contacts for each State in Australia (with the exception of South Australia). Support by participants for climate change as a valid role for dietitians and nutritionists was high (78 %). However, climate change was ranked low against other public health nutrition priorities. Support of participants to conduct programmes to address climate change from professional and work organisations was low. The final framework developed included elements of advocacy/lobbying, policy, professional recognition/support, organisational support, knowledge/skills, partnerships and programmes. This research demonstrates a need for public health nutrition to address climate change, which requires support by organisations, policy, improved knowledge and increased professional development opportunities.

  18. Special Section: The third provenance challenge on using the open provenance model for interoperability

    NARCIS (Netherlands)

    Simmhan, Y; Groth, P.T.; Moreau, L

    2011-01-01

    The third provenance challenge was organized to evaluate the efficacy of the Open Provenance Model (OPM) in representing and sharing provenance with the goal of improving the specification. A data loading scientific workflow that ingests data files into a relational database for the Pan-STARRS sky

  19. Highlighting the Way Forward: A Review of Community Mental Health Research and Practice Published in AJCP and JCP.

    Science.gov (United States)

    Townley, Greg; Terry, Rachel

    2018-03-01

    Articles published in the two most prominent journals of community psychology in North America, the American Journal of Community Psychology (AJCP) and Journal of Community Psychology (JCP), provide a clear indicator of trends in community research and practice. An examination of community psychology's history and scholarship suggests that the field has reduced its emphasis on promoting mental health, well-being, and liberation of individuals with serious mental illnesses over the past several decades. To further investigate this claim, the current review presents an analysis of articles relevant to community mental health (N = 307) published in the American Journal of Community Psychology (AJCP) and Journal of Community Psychology (JCP) from 1973 to 2015. The review focuses on article characteristics (e.g., type of article and methods employed), author characteristics, topic areas, and theoretical frameworks. Results document a downward trend in published articles from the mid-1980s to mid-2000s, with a substantial increase in published work between 2006 and 2015. A majority of articles were empirical and employed quantitative methods. The most frequent topic area was community mental health centers and services (n = 49), but the past three decades demonstrate a clear shift away from mental health service provision to address pressing social issues that impact community mental health, particularly homelessness (n = 42) and community integration of adults with serious mental illnesses (n = 40). Findings reflect both the past and present state of community psychology and suggest promising directions for re-engaging with community mental health and fostering well-being, inclusion, and liberation of adults experiencing serious mental health challenges. © Society for Community Research and Action 2017.

  20. Provenance trials of larch in Siberia

    Energy Technology Data Exchange (ETDEWEB)

    Milyutin, L.I. [V.N. Sukachev Inst. of Forest SB RAS, Krasnoyarsk (Russian Federation)

    1995-12-31

    Some results of provenance trials of larch in Siberia are given. These provenance trials were established in the last thirty years by efforts of V.N. Sukaczev Inst. of Forest. Provenances and species of larch were tested in some field trials distributed over Siberia between Lat. N 52 deg and 66 deg, Long. E 88 deg and 113 deg: near Krasnoyarsk, in Republic Khakasia (an altitudes of 800 and 1200 metres), in the Lower Yenisei near Turukhansk, in the west and south regions of Krasnoyarsk territory, in the Upper Lena, near Chita. 2 refs

  1. Archives and societal provenance Australian essays

    CERN Document Server

    Piggott, Michael

    2012-01-01

    Records and archival arrangements in Australia are globally relevant because Australia's indigenous people represent the oldest living culture in the world, and because modern Australia is an ex-colonial society now heavily multicultural in outlook. Archives and Societal Provenance explores this distinctiveness using the theoretical concept of societal provenance as propounded by Canadian archival scholars led by Dr Tom Nesmith. The book's seventeen essays blend new writing and re-workings of earlier work, comprising the fi rst text to apply a societal provenance perspective to a national sett

  2. Provenance trials of larch in Siberia

    Energy Technology Data Exchange (ETDEWEB)

    Milyutin, L I [V.N. Sukachev Inst. of Forest SB RAS, Krasnoyarsk (Russian Federation)

    1996-12-31

    Some results of provenance trials of larch in Siberia are given. These provenance trials were established in the last thirty years by efforts of V.N. Sukaczev Inst. of Forest. Provenances and species of larch were tested in some field trials distributed over Siberia between Lat. N 52 deg and 66 deg, Long. E 88 deg and 113 deg: near Krasnoyarsk, in Republic Khakasia (an altitudes of 800 and 1200 metres), in the Lower Yenisei near Turukhansk, in the west and south regions of Krasnoyarsk territory, in the Upper Lena, near Chita. 2 refs

  3. Climate Data Provenance Tracking for Just-In-Time Computation

    Science.gov (United States)

    Fries, S.; Nadeau, D.; Doutriaux, C.; Williams, D. N.

    2016-12-01

    The "Climate Data Management System" (CDMS) was created in 1996 as part of the Climate Data Analysis Tools suite of software. It provides a simple interface into a wide variety of climate data formats, and creates NetCDF CF-Compliant files. It leverages the NumPy framework for high performance computation, and is an all-in-one IO and computation package. CDMS has been extended to track manipulations of data, and trace that data all the way to the original raw data. This extension tracks provenance about data, and enables just-in-time (JIT) computation. The provenance for each variable is packaged as part of the variable's metadata, and can be used to validate data processing and computations (by repeating the analysis on the original data). It also allows for an alternate solution for sharing analyzed data; if the bandwidth for a transfer is prohibitively expensive, the provenance serialization can be passed in a much more compact format and the analysis rerun on the input data. Data provenance tracking in CDMS enables far-reaching and impactful functionalities, permitting implementation of many analytical paradigms.

  4. A Provenance Tracking Model for Data Updates

    Directory of Open Access Journals (Sweden)

    Gabriel Ciobanu

    2012-08-01

    Full Text Available For data-centric systems, provenance tracking is particularly important when the system is open and decentralised, such as the Web of Linked Data. In this paper, a concise but expressive calculus which models data updates is presented. The calculus is used to provide an operational semantics for a system where data and updates interact concurrently. The operational semantics of the calculus also tracks the provenance of data with respect to updates. This provides a new formal semantics extending provenance diagrams which takes into account the execution of processes in a concurrent setting. Moreover, a sound and complete model for the calculus based on ideals of series-parallel DAGs is provided. The notion of provenance introduced can be used as a subjective indicator of the quality of data in concurrent interacting systems.

  5. Ways of the Jam

    DEFF Research Database (Denmark)

    Brinck, Lars

    In the PhD-dissertation Ways of the Jam I investigate jamming and learning as profoundly collective and improvisational matters. Bridging a theory of funk jamming with situated learning theoretical analyses of New Orleans second line, everyday leadership, and of a studio recording session...... demonstrate how looking at human activity from a jamming perspective enhances our understanding of learning as a complex collective and improvisational process. Ways of the Jam demonstrates how learning is a matter of changing improvisational participation in changing practice in analytically inseparable ways......’ of practice, on the collectivity of changing practice, on the improvisational aspects of participation, and on these analytic perspectives’ complex hegemony and subordination....

  6. Data Provenance Architecture for the Geosciences

    Science.gov (United States)

    Murphy, F.; Irving, D. H.

    2012-12-01

    The pace at which geoscientific insights inform societal development quickens with time and these insights drive decisions and actions of ever-increasing human and economic significance. Until recently academic, commercial and government bodies have maintained distinct bodies of knowledge to support scientific enquiry as well as societal development. However, it has become clear that the curation of the body of data is an activity of equal or higher social and commercial value. We address the community challenges in the curation of, access to, and analysis of scientific data including: the tensions between creators, providers and users; incentives and barriers to sharing; ownership and crediting. We also discuss the technical and financial challenges in maximising the return on the effort made in generating geoscientific data. To illustrate how these challenges might be addressed in the broader geoscientific domain, we describe the high-level data governance and analytical architecture in the upstream Oil Industry. This domain is heavily dependent on costly and highly diverse geodatasets collected and assimilated over timeframes varying from seconds to decades. These data must support both operational decisions at the minute-hour timefame and strategic and economic decisions of enterprise or national scale, and yet be sufficiently robust to last the life of a producing field. We develop three themes around data provenance, data ownership and business models for data curation. 1/ The overarching aspiration is to ensure that data provenance and quality is maintained along the analytical workflow. Hence if data on which a publication or report changes, the report and its publishers can be notified and we describe a mechanism by which dependent knowledge products can be flagged. 2/ From a cost and management point of view we look at who "owns" data especially in cases where the cost of curation and stewardship is significant compared to the cost of acquiring the data

  7. Model-based Abstraction of Data Provenance

    DEFF Research Database (Denmark)

    Probst, Christian W.; Hansen, René Rydhof

    2014-01-01

    to bigger models, and the analyses adapt accordingly. Our approach extends provenance both with the origin of data, the actors and processes involved in the handling of data, and policies applied while doing so. The model and corresponding analyses are based on a formal model of spatial and organisational......Identifying provenance of data provides insights to the origin of data and intermediate results, and has recently gained increased interest due to data-centric applications. In this work we extend a data-centric system view with actors handling the data and policies restricting actions....... This extension is based on provenance analysis performed on system models. System models have been introduced to model and analyse spatial and organisational aspects of organisations, to identify, e.g., potential insider threats. Both the models and analyses are naturally modular; models can be combined...

  8. Utilizing Provenance in Reusable Research Objects

    Directory of Open Access Journals (Sweden)

    Zhihao Yuan

    2018-03-01

    Full Text Available Science is conducted collaboratively, often requiring the sharing of knowledge about computational experiments. When experiments include only datasets, they can be shared using Uniform Resource Identifiers (URIs or Digital Object Identifiers (DOIs. An experiment, however, seldom includes only datasets, but more often includes software, its past execution, provenance, and associated documentation. The Research Object has recently emerged as a comprehensive and systematic method for aggregation and identification of diverse elements of computational experiments. While a necessary method, mere aggregation is not sufficient for the sharing of computational experiments. Other users must be able to easily recompute on these shared research objects. Computational provenance is often the key to enable such reuse. In this paper, we show how reusable research objects can utilize provenance to correctly repeat a previous reference execution, to construct a subset of a research object for partial reuse, and to reuse existing contents of a research object for modified reuse. We describe two methods to summarize provenance that aid in understanding the contents and past executions of a research object. The first method obtains a process-view by collapsing low-level system information, and the second method obtains a summary graph by grouping related nodes and edges with the goal to obtain a graph view similar to application workflow. Through detailed experiments, we show the efficacy and efficiency of our algorithms.

  9. Model-based Abstraction of Data Provenance

    NARCIS (Netherlands)

    Probst, Christian W.; Hansen, René Rydhof

    Identifying provenance of data provides insights to the origin of data and intermediate results, and has recently gained increased interest due to data-centric applications. In this work we extend a data-centric system view with actors handling the data and policies restricting actions. This

  10. Provenance for Runtime Workflow Steering and Validation in Computational Seismology

    Science.gov (United States)

    Spinuso, A.; Krischer, L.; Krause, A.; Filgueira, R.; Magnoni, F.; Muraleedharan, V.; David, M.

    2014-12-01

    Provenance systems may be offered by modern workflow engines to collect metadata about the data transformations at runtime. If combined with effective visualisation and monitoring interfaces, these provenance recordings can speed up the validation process of an experiment, suggesting interactive or automated interventions with immediate effects on the lifecycle of a workflow run. For instance, in the field of computational seismology, if we consider research applications performing long lasting cross correlation analysis and high resolution simulations, the immediate notification of logical errors and the rapid access to intermediate results, can produce reactions which foster a more efficient progress of the research. These applications are often executed in secured and sophisticated HPC and HTC infrastructures, highlighting the need for a comprehensive framework that facilitates the extraction of fine grained provenance and the development of provenance aware components, leveraging the scalability characteristics of the adopted workflow engines, whose enactment can be mapped to different technologies (MPI, Storm clusters, etc). This work looks at the adoption of W3C-PROV concepts and data model within a user driven processing and validation framework for seismic data, supporting also computational and data management steering. Validation needs to balance automation with user intervention, considering the scientist as part of the archiving process. Therefore, the provenance data is enriched with community-specific metadata vocabularies and control messages, making an experiment reproducible and its description consistent with the community understandings. Moreover, it can contain user defined terms and annotations. The current implementation of the system is supported by the EU-Funded VERCE (http://verce.eu). It provides, as well as the provenance generation mechanisms, a prototypal browser-based user interface and a web API built on top of a NoSQL storage

  11. The PBase Scientific Workflow Provenance Repository

    Directory of Open Access Journals (Sweden)

    Víctor Cuevas-Vicenttín

    2014-10-01

    Full Text Available Scientific workflows and their supporting systems are becoming increasingly popular for compute-intensive and data-intensive scientific experiments. The advantages scientific workflows offer include rapid and easy workflow design, software and data reuse, scalable execution, sharing and collaboration, and other advantages that altogether facilitate “reproducible science”. In this context, provenance – information about the origin, context, derivation, ownership, or history of some artifact – plays a key role, since scientists are interested in examining and auditing the results of scientific experiments. However, in order to perform such analyses on scientific results as part of extended research collaborations, an adequate environment and tools are required. Concretely, the need arises for a repository that will facilitate the sharing of scientific workflows and their associated execution traces in an interoperable manner, also enabling querying and visualization. Furthermore, such functionality should be supported while taking performance and scalability into account. With this purpose in mind, we introduce PBase: a scientific workflow provenance repository implementing the ProvONE proposed standard, which extends the emerging W3C PROV standard for provenance data with workflow specific concepts. PBase is built on the Neo4j graph database, thus offering capabilities such as declarative and efficient querying. Our experiences demonstrate the power gained by supporting various types of queries for provenance data. In addition, PBase is equipped with a user friendly interface tailored for the visualization of scientific workflow provenance data, making the specification of queries and the interpretation of their results easier and more effective.

  12. Examining practical nursing experiences to discover ways in which to retain and invigorate the remaining functions of the elderly with a demented and complex disability in nursing homes.

    Science.gov (United States)

    Park, Min-Sun; Lim, Sun-Young; Kim, Eun-Young; Lee, Su-Jung; Chang, Sung-Ok

    2018-01-01

    The bedridden elderly with moderate-to-severe dementia account for a large proportion of the residents in nursing homes and form a specialized group requiring customized care in order to encourage their remaining functions, which determine the quality of their residual life. The purpose of this study was to search for ways to invigorate and foster the remaining functions of this complex-disability group, based on practical nursing strategies in nursing homes. The qualitative thematic analysis was done by conducting in-depth interviews with 29 nurses working at 11 different nursing homes in South Korea. This study proposed four main themes and 19 sub themes as keys for providing specialized nursing care to the elderly with physical and cognitive disabilities. The main themes encourage the residents' remaining functions: (i) accurate identification of an elderly resident's physical, cognitive, and behavioral baseline is necessary in order to determine their functional levels; (ii) nurses provide meticulous management to support the remaining functions in order to prevent further deterioration; (iii) optimized know-how, based on accumulated experience and knowledge, is reflected in nursing strategies that maximize the effects of nursing interventions; and (iv) steady compliance with nursing guidelines and standards in nursing homes creates the best therapeutic environment and brings unexpected positive changes in the elderly's status. A practical nursing strategy to target the group with a demented and complex disability in nursing homes was developed through thematic analysis of the empirical knowledge of nurses. The findings provide new insights for developing specialized nursing interventions and practical nursing models in long-term care facilities. © 2017 Japan Academy of Nursing Science.

  13. Managing Acquisition Risk by Applying Proven Best Practices

    National Research Council Canada - National Science Library

    Evans, Mike; Segura, Corinne; Doherty, Frank

    2005-01-01

    .... While risk management is ingrained within their culture, these organizations take active measures to sustain effective implementation across programs by routinely conducting assessments to maintain...

  14. PROV2R : Practical provenance analysis of unstructured processes

    NARCIS (Netherlands)

    Stamatogiannakis, Manolis; Athanasopoulos, Elias; Bos, Herbert; Groth, Paul

    2017-01-01

    Information produced by Internet applications is inherently a result of processes that are executed locally. Think of a web server that makes use of a CGI script, or a content management system where a post was first edited using a word processor. Given the impact of these processes to the content

  15. Seamless Provenance Representation and Use in Collaborative Science Scenarios

    Science.gov (United States)

    Missier, P.; Ludaescher, B.; Bowers, S.; Altintas, I.; Anand, M. K.; Dey, S.; Sarkar, A.; Shrestha, B.; Goble, C.

    2010-12-01

    ), as well as when data is published and reused using mechanisms that are not provenance-aware. In this presentation we discuss requirements for ensuring provenance-aware data publishing and reuse, and describe the design and implementation of a prototype toolkit that involves two specific, and broadly used, workflow models, Kepler [3] and Taverna [4]. The implementation is expected to be adopted as part of DataONE's investigators' toolkit, in support of its mission of large-scale data preservation. Refs. [1]Sharing of Data Leads to Progress on Alzheimer’s, G. Kolata, NYT, 8/12/2010 [2]http://www.dataone.org [3]Ludaescher B., Altintas I. et al. Scientific Workflow Management and the Kepler System. Special Issue: Workflow in Grid Systems. Concurrency and Computation: Practice & Experience 18(10): 1039-1065, 2006 [4]D. Hull, K. Wolstencroft, R. Stevens, C. Goble, M. R. Pocock, P. Li, T. Oinn. Taverna: a tool for building and running workflows of services. Nucl. Acids Res. 34: W729-W732, 2006

  16. PAV ontology: provenance, authoring and versioning.

    Science.gov (United States)

    Ciccarese, Paolo; Soiland-Reyes, Stian; Belhajjame, Khalid; Gray, Alasdair Jg; Goble, Carole; Clark, Tim

    2013-11-22

    Provenance is a critical ingredient for establishing trust of published scientific content. This is true whether we are considering a data set, a computational workflow, a peer-reviewed publication or a simple scientific claim with supportive evidence. Existing vocabularies such as Dublin Core Terms (DC Terms) and the W3C Provenance Ontology (PROV-O) are domain-independent and general-purpose and they allow and encourage for extensions to cover more specific needs. In particular, to track authoring and versioning information of web resources, PROV-O provides a basic methodology but not any specific classes and properties for identifying or distinguishing between the various roles assumed by agents manipulating digital artifacts, such as author, contributor and curator. We present the Provenance, Authoring and Versioning ontology (PAV, namespace http://purl.org/pav/): a lightweight ontology for capturing "just enough" descriptions essential for tracking the provenance, authoring and versioning of web resources. We argue that such descriptions are essential for digital scientific content. PAV distinguishes between contributors, authors and curators of content and creators of representations in addition to the provenance of originating resources that have been accessed, transformed and consumed. We explore five projects (and communities) that have adopted PAV illustrating their usage through concrete examples. Moreover, we present mappings that show how PAV extends the W3C PROV-O ontology to support broader interoperability. The initial design of the PAV ontology was driven by requirements from the AlzSWAN project with further requirements incorporated later from other projects detailed in this paper. The authors strived to keep PAV lightweight and compact by including only those terms that have demonstrated to be pragmatically useful in existing applications, and by recommending terms from existing ontologies when plausible. We analyze and compare PAV with related

  17. On the Way of Educational Reform: Thai High School Physics Teachers' Conceptions of the Student-Centered Approach and Their Perceptions of Their Classroom Practices

    Science.gov (United States)

    Chaumklang, Kawin

    During the past two decades, the student-centered approach has been widely promoted and accepted by the educational community as one of the most effective instructional approaches. It has been continually developed and revised to match our current understanding of how humans learn (American Psychological Association, 1997). It is based upon the belief that students should take responsibility for their own learning. Thus, curriculum, instruction, and assessment should be carefully designed to stimulate, facilitate, and accelerate students' learning as much as possible. In order to do so, the teacher needs to take the following factors into consideration: students' cognitive structures, metacognitive and regulative skills, motivation and affective states, developmental and individual differences, and social supports. However, the term student-centered has been defined and described by researchers and scholars in many different ways. Little is known about how practicing teachers conceptualize this term and how they perceive their classroom practices in relation to these conceptions. The purpose of this study was to utilize a qualitative multiple-case study approach to investigate teachers' conceptions of the student-centered approach and their perceptions of their classroom practices. Four Thai high school physics teachers, who were considered products of the current student-centered educational reform movement in Thailand, participated in this study. Data were collected for one learning unit (three to eight weeks) through classroom observations, semi-structured interviews, and document analysis. The data analysis revealed that teachers' conceptions of student-centered curriculum, instruction, and assessment had three common characteristics: (a) students' active participation; (b) special emphasis on students' background knowledge, understanding, motivation, affective states, and learning capability; and (c) benefits to students. The results also indicated that there

  18. Fiche Pratique: Histoire de modes . . . toujours; Premiers contacts; Jongler avec les lettres; Un conte a votre facon (Practical Ideas: On the Subject of Verbal Moods . . . Again; First Contacts; Juggling letters; A Story Your Own Way).

    Science.gov (United States)

    Weiss, Francois; And Others

    1993-01-01

    The four language classroom activities described include work with verbal moods (subjunctive, conditional) by eliciting student suggestions for ways to help third-world countries; ways to practice social meeting/greeting/introduction situations; development of phonetic understanding and vocabulary through letter and sound changes; use of…

  19. Data Provenance for Agent-Based Models in a Distributed Memory

    Directory of Open Access Journals (Sweden)

    Delmar B. Davis

    2018-04-01

    Full Text Available Agent-Based Models (ABMs assist with studying emergent collective behavior of individual entities in social, biological, economic, network, and physical systems. Data provenance can support ABM by explaining individual agent behavior. However, there is no provenance support for ABMs in a distributed setting. The Multi-Agent Spatial Simulation (MASS library provides a framework for simulating ABMs at fine granularity, where agents and spatial data are shared application resources in a distributed memory. We introduce a novel approach to capture ABM provenance in a distributed memory, called ProvMASS. We evaluate our technique with traditional data provenance queries and performance measures. Our results indicate that a configurable approach can capture provenance that explains coordination of distributed shared resources, simulation logic, and agent behavior while limiting performance overhead. We also show the ability to support practical analyses (e.g., agent tracking and storage requirements for different capture configurations.

  20. Obsidian provenance research in the Americas.

    Science.gov (United States)

    Glascock, Michael D

    2002-08-01

    The characterization of archaeological materials to support provenance research has grown rapidly over the past few decades. Volcanic obsidian has several unique properties that make it the ideal archaeological material for studying prehistoric trade and exchange. This Account describes our laboratory's development of a systematic methodology for the characterization of obsidian sources and artifacts from Mesoamerica and other regions of North and South America in support of archaeological research.

  1. Lowering the Barrier to Reproducible Research by Publishing Provenance from Common Analytical Tools

    Science.gov (United States)

    Jones, M. B.; Slaughter, P.; Walker, L.; Jones, C. S.; Missier, P.; Ludäscher, B.; Cao, Y.; McPhillips, T.; Schildhauer, M.

    2015-12-01

    Scientific provenance describes the authenticity, origin, and processing history of research products and promotes scientific transparency by detailing the steps in computational workflows that produce derived products. These products include papers, findings, input data, software products to perform computations, and derived data and visualizations. The geosciences community values this type of information, and, at least theoretically, strives to base conclusions on computationally replicable findings. In practice, capturing detailed provenance is laborious and thus has been a low priority; beyond a lab notebook describing methods and results, few researchers capture and preserve detailed records of scientific provenance. We have built tools for capturing and publishing provenance that integrate into analytical environments that are in widespread use by geoscientists (R and Matlab). These tools lower the barrier to provenance generation by automating capture of critical information as researchers prepare data for analysis, develop, test, and execute models, and create visualizations. The 'recordr' library in R and the `matlab-dataone` library in Matlab provide shared functions to capture provenance with minimal changes to normal working procedures. Researchers can capture both scripted and interactive sessions, tag and manage these executions as they iterate over analyses, and then prune and publish provenance metadata and derived products to the DataONE federation of archival repositories. Provenance traces conform to the ProvONE model extension of W3C PROV, enabling interoperability across tools and languages. The capture system supports fine-grained versioning of science products and provenance traces. By assigning global identifiers such as DOIs, reseachers can cite the computational processes used to reach findings. And, finally, DataONE has built a web portal to search, browse, and clearly display provenance relationships between input data, the software

  2. Different types of power reactors and provenness

    International Nuclear Information System (INIS)

    Goodman, E.I.

    1977-01-01

    The lecture guides the potential buyer in the selection of a reactor type. Recommended criteria regarding provenness, licensability, and contractual arrangements are defined and discussed. Tabular data summarizing operating experience and commercial availability of units are presented and discussed. The status of small and medium power reactors which are of interest to many developing countries is presented. It is stressed that each prospective buyer will have to establish his own criteria based on specific conditions which will be applied to reactor selection. In all cases it will be found that selection, either pre-selection of bidders or final selection of supplier, will be a fairly complex evaluation. (orig.) [de

  3. Provenance and recycling of Arabian desert sand

    Science.gov (United States)

    Garzanti, Eduardo; Vermeesch, Pieter; Andò, Sergio; Vezzoli, Giovanni; Valagussa, Manuel; Allen, Kate; Kadi, Khalid A.; Al-Juboury, Ali I. A.

    2013-05-01

    This study seeks to determine the ultimate origin of aeolian sand in Arabian deserts by high-resolution petrographic and heavy-mineral techniques combined with zircon U-Pb geochronology. Point-counting is used here as the sole method by which unbiased volume percentages of heavy minerals can be obtained. A comprehensive analysis of river and wadi sands from the Red Sea to the Bitlis-Zagros orogen allowed us to characterize all potential sediment sources, and thus to quantitatively constrain provenance of Arabian dune fields. Two main types of aeolian sand can be distinguished. Quartzose sands with very poor heavy-mineral suites including zircon occupy most of the region comprising the Great Nafud and Rub' al-Khali Sand Seas, and are largely recycled from thick Lower Palaeozoic quartzarenites with very minor first-cycle contributions from Precambrian basement, Mesozoic carbonate rocks, or Neogene basalts. Instead, carbonaticlastic sands with richer lithic and heavy-mineral populations characterize coastal dunes bordering the Arabian Gulf from the Jafurah Sand Sea of Saudi Arabia to the United Arab Emirates. The similarity with detritus carried by the axial Tigris-Euphrates system and by transverse rivers draining carbonate rocks of the Zagros indicates that Arabian coastal dunes largely consist of far-travelled sand, deposited on the exposed floor of the Gulf during Pleistocene lowstands and blown inland by dominant Shamal northerly winds. A dataset of detrital zircon U-Pb ages measured on twelve dune samples and two Lower Palaeozoic sandstones yielded fourteen identical age spectra. The age distributions all show a major Neoproterozoic peak corresponding to the Pan-African magmatic and tectonic events by which the Arabian Shield was assembled, with minor late Palaeoproterozoic and Neoarchean peaks. A similar U-Pb signature characterizes also Jafurah dune sands, suggesting that zircons are dominantly derived from interior Arabia, possibly deflated from the Wadi al

  4. Alternative way of life

    International Nuclear Information System (INIS)

    Fischer, C.

    1980-01-01

    The volume describes the reasons why more and more people seek alternative ways of life, the theoretical background and what alternative life means in practice as well as the sociological significance and history of the alternative movement. It also contains statements of persons who have 'got out' and advice on energy-saving. (HSCH) [de

  5. Biopsy-proven childhood glomerulonephritis in Johor.

    Science.gov (United States)

    Khoo, J J; Pee, S; Thevarajah, B; Yap, Y C; Chin, C K

    2004-06-01

    There has been no published study of biopsy-proven childhood glomerulonephritis in Malaysia. To determine the pattern of childhood glomerulonephritis in Johor, Malaysia from a histopathological perspective and the various indications used for renal biopsy in children. Retrospective study was done of all renal biopsies from children under 16 years of age, received in Sultanah Aminah Hospital, Johor between 1994 and 2001. The histopathological findings were reviewed to determine the pattern of biopsy-proven glomerulonephritis. The indications for biopsy, mode of therapy given after biopsy and the clinical outcome were studied. 122 adequate biopsies were received, 9 children had repeat biopsies. Of the 113 biopsies, minimal change disease formed the most common histopathological diagnosis (40.7%) while lupus nephritis formed the most common secondary glomerulonephritis (23.0%). The main indications for biopsy were nephrotic syndrome (50.8%), lupus nephritis (25.4%) and renal impairment (13.1%). The mode of therapy was changed in 59.8% of the children. Of 106 patients followed-up, 84 children were found to have normal renal function in remission or on treatment. 4 patients developed chronic renal impairment and 16 reached end stage renal disease. Five of the 16 children with end stage disease had since died while 11 were on renal replacement therapy. Another 2 patients died of other complications. The pattern of childhood GN in our study tended to reflect the more severe renal parenchymal diseases in children and those requiring more aggressive treatment. This was because of our criteria of selection (indication) for renal biopsy. Renal biopsy where performed appropriately in selected children may not only be a useful investigative tool for histological diagnosis and prognosis but may help clinicians plan the optimal therapy for these children.

  6. Extending eScience Provenance with User-Submitted Semantic Annotations

    Science.gov (United States)

    Michaelis, J.; Zednik, S.; West, P.; Fox, P. A.; McGuinness, D. L.

    2010-12-01

    eScience based systems generate provenance of their data products, related to such things as: data processing, data collection conditions, expert evaluation, and data product quality. Recent advances in web-based technology offer users the possibility of making annotations to both data products and steps in accompanying provenance traces, thereby expanding the utility of such provenance for others. These contributing users may have varying backgrounds, ranging from system experts to outside domain experts to citizen scientists. Furthermore, such users may wish to make varying types of annotations - ranging from documenting the purpose of a provenance step to raising concerns about the quality of data dependencies. Semantic Web technologies allow for such kinds of rich annotations to be made to provenance through the use of ontology vocabularies for (i) organizing provenance, and (ii) organizing user/annotation classifications. Furthermore, through Linked Data practices, Semantic linkages may be made from provenance steps to external data of interest. A desire for Semantically-annotated provenance has been motivated by data management issues in the Mauna Loa Solar Observatory’s (MLSO) Advanced Coronal Observing System (ACOS). In ACOS, photomoeter-based readings are taken of solar activity and subsequently processed into final data products consumable by end users. At intermediate stages of ACOS processing, factors such as evaluations by human experts and weather conditions are logged, which could impact data product quality. If such factors are linked via user-submitted annotations to provenance, it could be significantly beneficial for other users. Likewise, the background of a user could impact the credibility of their annotations. For example, an annotation made by a citizen scientist describing the purpose of a provenance step may not be as reliable as a similar annotation made by an ACOS project member. For this work, we have developed a software package that

  7. Big Data Provenance: Challenges, State of the Art and Opportunities

    OpenAIRE

    Wang, Jianwu; Crawl, Daniel; Purawat, Shweta; Nguyen, Mai; Altintas, Ilkay

    2015-01-01

    Ability to track provenance is a key feature of scientific workflows to support data lineage and reproducibility. The challenges that are introduced by the volume, variety and velocity of Big Data, also pose related challenges for provenance and quality of Big Data, defined as veracity. The increasing size and variety of distributed Big Data provenance information bring new technical challenges and opportunities throughout the provenance lifecycle including recording, querying, sharing and ut...

  8. Tracing where and who provenance in Linked Data: A calculus

    OpenAIRE

    Dezani-Ciancaglini, Mariangiola; Horne, Ross; Sassone, Vladimiro

    2012-01-01

    Linked Data provides some sensible guidelines for publishing and consuming data on the Web. Data published on the Web has no inherent truth, yet its quality can often be assessed based on its provenance. This work introduces a new approach to provenance for Linked Data. The simplest notion of provenance-viz., a named graph indicating where the data is now-is extended with a richer provenance format. The format reflects the behaviour of processes interacting with Linked Data, tracing where the...

  9. Provenance tracking in the ViroLab Virtual Laboratory

    NARCIS (Netherlands)

    Baliś, B.; Bubak, M.; Wach, J.

    2008-01-01

    Provenance describes the process which led to the creation of a piece of data. Tracking provenance of experiment results is essential in modern environments which support conducting of in silico experiments. We present a provenance tracking approach developed as part of the virtual laboratory of the

  10. Irradiation sensibility of different provenances of Jatropha curcas L. seeds

    International Nuclear Information System (INIS)

    Yang Qing; Xu Congheng; Peng Daiping; Duan Zhubiao; Han Lei; Sun Qixiang; Peng Zhenhua

    2007-01-01

    The irradiation sensibility of 10 provenances of Jatropha curcas L. seeds to 60 Co γ-rays was studied. The results showed that the relationship between relative germination rate of the seeds and the doses of irradiation was negative correlation, and the difference of relative germination rate among different doses treatment was significant at 5% probability level or highly significant at 1% probability level. For seeds of different provenances, the correlation coefficient of linear regression was from -0.89--0.96, and the medial lethal doses (LD 50) of 10 provinces was from 127 Gy to 184 Gy. According to the LD 50, we could divided 10 provinces of J. curcas L. into sensitive provenance, transitional provenances and obtuse provenances. The provenances of Yuanjiang , Yunan (184 Gy) belonged to sensitive provenance; the provenances of Zhenfeng, Guizhou (127 Gy) and the provenances of Yuedong, Hainan (141 Gy) belonged to obtuse provenance; other 7 provenances belonged to transitional provenances. The results provided important experiment basis for germ plasma resources innovation of J. curcas L. (authors)

  11. Provenance research: investigation of genetic diversity associated with geography

    Science.gov (United States)

    Robert Z. Callaham

    1963-01-01

    Provenance in forestry refers to the population of trees growing at n particular place of origin. Provenance research defines the genetic and environmental components of phenotypic variation associated with geographic source. Information on provenance is important in assuring sources of seed to give well-adapted, productive trees and in directing breeding of...

  12. Big Data Provenance: Challenges, State of the Art and Opportunities.

    Science.gov (United States)

    Wang, Jianwu; Crawl, Daniel; Purawat, Shweta; Nguyen, Mai; Altintas, Ilkay

    2015-01-01

    Ability to track provenance is a key feature of scientific workflows to support data lineage and reproducibility. The challenges that are introduced by the volume, variety and velocity of Big Data, also pose related challenges for provenance and quality of Big Data, defined as veracity. The increasing size and variety of distributed Big Data provenance information bring new technical challenges and opportunities throughout the provenance lifecycle including recording, querying, sharing and utilization. This paper discusses the challenges and opportunities of Big Data provenance related to the veracity of the datasets themselves and the provenance of the analytical processes that analyze these datasets. It also explains our current efforts towards tracking and utilizing Big Data provenance using workflows as a programming model to analyze Big Data.

  13. Multi-Method Provenance Analysis of Namibian Desert Sand

    Science.gov (United States)

    Vermeesch, P.; Garzanti, E.

    2014-12-01

    Mineralogical, geochemical and geochronological provenance proxies each have their own strengths and weaknesses: a. Bulk geochemistry, framework petrography and heavy mineral compositions can differentiate between source areas characterised by different lithologies, but are sensitive to hydraulic sorting and chemical alteration. b. Detrital zircon U-Pb geochronology is insensitive to winnowing effects, but is 'blind' to lithologies devoid of zircon and cannot differentiate between first cycle and recycled sediments. c. Cosmogenic neon isotopes can be used to identify different generations of surface exposure while simultaneously tracking different magmatic sources. The challenge is then to combine these different proxies into a self consistent story, and do so in as objective a manner as possible. We here present a case study of Namibia's Namib Sand Sea and Skeleton Coast ergs, in which all the aforementioned methods have been combined using a three-way multidimensional scaling (aka INDividual Differences SCALing or INDSCAL) analysis: 1. Each of the datasets was represented by a 'dissimilarity matrix' of pairwise distances between samples. 2. The set of these matrices was fed into the INDSCAL algorithm, which produces two pieces of graphical output: the 'group configuration', which is a scatter plot or 'map' in which similar samples plot close together and dissimilar samples plot far apart, and the 'proxy weights', in which not the samples but the proxies are plotted according to the weight they attached to the 'group configuration' axes. The INDSCAL map of the Namibia dataset indicates that (a) long-shore drift of Orange River sediments dominates the coastal sediment compositions all along the Namibian coast until Angola, and (b) that light and heavy minerals tell complementary parts of the provenance story.

  14. Data provenance assurance in the cloud using blockchain

    Science.gov (United States)

    Shetty, Sachin; Red, Val; Kamhoua, Charles; Kwiat, Kevin; Njilla, Laurent

    2017-05-01

    Ever increasing adoption of cloud technology scales up the activities like creation, exchange, and alteration of cloud data objects, which create challenges to track malicious activities and security violations. Addressing this issue requires implementation of data provenance framework so that each data object in the federated cloud environment can be tracked and recorded but cannot be modified. The blockchain technology gives a promising decentralized platform to build tamper-proof systems. Its incorruptible distributed ledger/blockchain complements the need of maintaining cloud data provenance. In this paper, we present a cloud based data provenance framework using block chain which traces data record operations and generates provenance data. We anchor provenance data records into block chain transactions, which provide validation on provenance data and preserve user privacy at the same time. Once the provenance data is uploaded to the global block chain network, it is extremely challenging to tamper the provenance data. Besides, the provenance data uses hashed user identifiers prior to uploading so the blockchain nodes cannot link the operations to a particular user. The framework ensures that the privacy is preserved. We implemented the architecture on ownCloud, uploaded records to blockchain network, stored records in a provenance database and developed a prototype in form of a web service.

  15. The provenance of Taklamakan desert sand

    Science.gov (United States)

    Rittner, Martin; Vermeesch, Pieter; Carter, Andrew; Bird, Anna; Stevens, Thomas; Garzanti, Eduardo; Andò, Sergio; Vezzoli, Giovanni; Dutt, Ripul; Xu, Zhiwei; Lu, Huayu

    2016-03-01

    Sand migration in the vast Taklamakan desert within the Tarim Basin (Xinjiang Uyghur Autonomous region, PR China) is governed by two competing transport agents: wind and water, which work in diametrically opposed directions. Net aeolian transport is from northeast to south, while fluvial transport occurs from the south to the north and then west to east at the northern rim, due to a gradual northward slope of the underlying topography. We here present the first comprehensive provenance study of Taklamakan desert sand with the aim to characterise the interplay of these two transport mechanisms and their roles in the formation of the sand sea, and to consider the potential of the Tarim Basin as a contributing source to the Chinese Loess Plateau (CLP). Our dataset comprises 39 aeolian and fluvial samples, which were characterised by detrital-zircon U-Pb geochronology, heavy-mineral, and bulk-petrography analyses. Although the inter-sample differences of all three datasets are subtle, a multivariate statistical analysis using multidimensional scaling (MDS) clearly shows that Tarim desert sand is most similar in composition to rivers draining the Kunlun Shan (south) and the Pamirs (west), and is distinctly different from sediment sources in the Tian Shan (north). A small set of samples from the Junggar Basin (north of the Tian Shan) yields different detrital compositions and age spectra than anywhere in the Tarim Basin, indicating that aeolian sediment exchange between the two basins is minimal. Although river transport dominates delivery of sand into the Tarim Basin, wind remobilises and reworks the sediment in the central sand sea. Characteristic signatures of main rivers can be traced from entrance into the basin to the terminus of the Tarim River, and those crossing the desert from the south to north can seasonally bypass sediment through the sand sea. Smaller ephemeral rivers from the Kunlun Shan end in the desert and discharge their sediment there. Both river run

  16. Towards a New Way of Healing: Experienced Counsellors' Perceived Influences of Ch'i-Related Experiences on Counselling Practice in Taiwan

    Science.gov (United States)

    Liou, Chin-Ping

    2018-01-01

    This narrative study explored how the experienced counsellors utilised the idea and practice of "ch'i" during counselling sessions. The data were co-constructed between the researcher and 12 senior counsellors with substantial "ch'i"-related experiences using a semi-structured in-depth interview method and were analysed…

  17. Revisiting the Factors Shaping Outcomes for Forest and Landscape Restoration in Sub-Saharan Africa : A Way Forward for Policy, Practice and Research

    NARCIS (Netherlands)

    Djenontin, I.N.S.; Foli, S.; Zulu, L.C.

    2018-01-01

    A lack of systematic understanding of the elements that determine the success of forest and landscape restoration (FLR) investments leads to the inability to clearly articulate strategic and practical approaches to support natural resource restoration endeavors across Sub-Saharan Africa (SSA). This

  18. Redesigning the Way We Listen

    DEFF Research Database (Denmark)

    Søndergaard, Morten

    2014-01-01

    This paper is based on a research project-in-progress investigating curatorial practice as methodology for creating responsive interfaces to sound art practices. Sound art is a transdisciplinary practice. As such, it creates new domains that may be used for redesign-purposes. Not only do experien......This paper is based on a research project-in-progress investigating curatorial practice as methodology for creating responsive interfaces to sound art practices. Sound art is a transdisciplinary practice. As such, it creates new domains that may be used for redesign-purposes. Not only do...... experiences of sound alter; the way we listen to sound is transforming as well. Thus, the paper analyses and discusses two responsive sound interfaces and claim that curating as a transdisciplinary practice may frame what is termed in the paper as a domain-game redesigning the way the audience listens...

  19. Do we really behave the same way? Assessing the three dimensions of organizational commitment as antecedents of human resource practices in a non-western context

    Directory of Open Access Journals (Sweden)

    Michel Zaitouni Ph.D

    2013-07-01

    This is one of few studies to provide insight into human resource practices and its relationships with the dimensions of organizational commitment in a country that has a very different culture from that of the US and other western societies, where most of the research on organizational commitment has been conducted. Commitment has long been assumed to be an essential outcome of work-related behaviour, yet this study shows that its effectiveness may be contingent on national culture.

  20. Strategizing in multiple ways

    DEFF Research Database (Denmark)

    Larsen, Mette Vinther; Madsen, Charlotte Øland; Rasmussen, Jørgen Gulddahl

    2013-01-01

    Strategy processes are kinds of wayfaring where different actors interpret a formally defined strat-egy differently. In the everyday practice of organizations strategizing takes place in multiple ways through narratives and sensible actions. This forms a meshwork of polyphonic ways to enact one...... and the same strategy. The paper focusses on such processes as they develop in a Danish service company. It is done on the basis of an empirical and longitudinal study of a strategy process in the Service Company where the strategic purpose was to implement value-based management. The theme to be developed...... based on this development paper is whether one can understand these diver-gent strategic wayfaring processes as constructive for organizations....

  1. Revisiting the Factors Shaping Outcomes for Forest and Landscape Restoration in Sub-Saharan Africa: A Way Forward for Policy, Practice and Research

    Directory of Open Access Journals (Sweden)

    Ida Nadia S. Djenontin

    2018-03-01

    Full Text Available A lack of systematic understanding of the elements that determine the success of forest and landscape restoration (FLR investments leads to the inability to clearly articulate strategic and practical approaches to support natural resource restoration endeavors across Sub-Saharan Africa (SSA. This review examines the different challenges and opportunities for effective restoration interventions. Using a structured literature review, we draw evidence from a broad range of scholarly works on natural resource conservation and governance to investigate the early dynamics of FLR in SSA. We first engage in a contextual clarification of FLR concepts and then provide a synthesis of the factors that influence the results of FLR interventions at the social and institutional level to inform relevant restoration stakeholders—policy makers, investors, and practitioners. The review finds that several interacting factors shape the outcomes of FLR interventions. We classified them into three categories based on their features, intensity, and scale of occurrence: (1 micro-scale factors that enable or limit individual engagement in FLR and sustainable management practices; (2 project/program-level factors, including the design and implementation stages; and (3 institutional, policy, and governance factors, and issues of inequity that operate at the local or national government scale. The review goes beyond underscoring funding constraints as a major challenge to the up- and out-scaling of restoration interventions and FLR success. The findings also set out a premise for future research to guide the design and implementation of successful FLR models in SSA.

  2. Growth and provenance variation of Pinus caribaea var ...

    African Journals Online (AJOL)

    CAMCORE has visited 33 populations of Pinus caribaea var. hondurensis in Belize, Guatemala, Honduras, El Salvador, Nicaragua, and Quintana Roo, Mexico. Seed collections have been made in 29 provenances from 1, 325 mother trees. A total of 21 provenances and sources of Pinus caribaea var. hondurensis were ...

  3. Provenance variation in Eucalyptus camaldulensis Dehnh. in California

    Science.gov (United States)

    B.M. Emery; F. Thomas Ledig

    1987-01-01

    In California, the Lake Albacutya provenance of river red gum was clearly superior in volume growth to 22 other provenances collected throughout the range of the species in Australia. It had at least 2.5 times the volume of the plantation mean at 5.5 years, consistent with its performance in other countries with Mediterranean climates like California's. Other...

  4. Antimicrobial stewardship initiatives throughout Europe: proven value for money

    Directory of Open Access Journals (Sweden)

    Edwin J.M. Oberjé

    2017-03-01

    Full Text Available Antimicrobial stewardship is recognized as a key component to stop the current European spread of antimicrobial resistance. It has also become evident that antimicrobial resistance is a problem that cannot be tackled by single institutions or physicians. Prevention of antimicrobial resistance needs rigorous actions at ward level, institution level, national level and at supra-national levels. Countries can learn from each other and possibly transplant best practices across borders to prevent antimicrobial resistance. The aim of this study is to highlight some of the success stories of proven cost-effective interventions, and to describe the actions that have been taken, the outcomes that have been found, and the difficulties that have been met. In some cases we came across substantial scope for real-life cost savings. Although the best approach to effectively hinder the spread of antimicrobial resistance remains unclear and may vary significantly among settings, several EU-wide examples demonstrate that cost-effective antimicrobial stewardship is possible. Such examples can encourage others to implement (the most cost-effective elements in their system.

  5. Audiopodcasts im Biochemiepraktikum – Kostengünstiges eLearning in bewährtem Hörfunkformat [Audio podcasts in practical courses in biochemistry – cost-efficient e-learning in a well-proven format from radio broadcasting

    Directory of Open Access Journals (Sweden)

    Münch-Harrach, Dieter

    2013-11-01

    Full Text Available [english] Introduction: Audio podcasts are an e-learning format that may help to motivate students to deal with the contents of medical education more intensely. We adopted a well-proven format from radio broadcasting, the radio documentary, to direct the listeners’ attention to information about practical courses in biochemistry over a period of 20 minutes at most. Information, original sounds, and a specific atmosphere allow listeners to perceive the contents intensely.Method: In order to organise the production of the podcast as cost-efficient and least time-consuming as possible, a student, a teacher, a clinician, and a technical assistant compile the core themes of their respective text blocks in an editorial conference first. After that, the speakers can elaborate on and record their blocks independently. Coordination is widely handled by the student. At two points of time, the podcasts were evaluated by the medical students by means of a questionnaire.Results: With little cost and time expenses, eight podcasts were produced. They have been used by the students extensively and have also been evaluated very positively by non-student listeners. For long-term usage, a regular reference to the podcast offer is required in the courses.Conclusion: Involving students, successful podcasts can be produced to support classroom teaching with little expenses and contribute to the external presentation of the medical faculty.[german] Einleitung: Audiopodcasts sind ein e-Learning Format, mit dem Studierende motiviert werden können, sich intensiver mit Lerninhalten des Medizinstudiums zu beschäftigen. Wir haben ein bewährtes Format aus dem Hörfunk, den „gebauten Beitrag“, übernommen, um die Aufmerksamkeit der Zuhörer über Zeiträume bis zu 20 Minuten auf Informationen zum Biochemiepraktikum zu richten. Informationen, O-Ton (Original-Ton und spezifische Atmosphäre lassen den Hörer die Inhalte intensiv erleben.Methode: Um die Erstellung der

  6. Ultra-supercritical (USC) technology. The best practical and economic way to reduce CO{sub 2} emissions from coal fired power plants

    Energy Technology Data Exchange (ETDEWEB)

    Mao, Jianxiong [Tsinghua Univ., Beijing (China). Dept. of Thermal Engineering

    2013-07-01

    China is the largest coal producer and consumer with largest coal power capacity in the world. By the end of 2010, the total installed power capacity in China was 962,190 MWe, in which coal fired power capacity was 706,630 MWe, accounting for over 73.4%. China has been the largest CO{sub 2} emission country as well and its huge coal power capacity is the largest CO{sub 2} emission source. How does China reduce its CO{sub 2} emissions from coal fired power plants is an austere challenge now we are facing. How does China reduce its CO{sub 2} emissions from coal fired power plants? There are three ways to reduce CO{sub 2} emissions from coal fired power plants: (1) carbon capture and storage (CCS); (2) co-firing biomass with coal; (3) much improvement of efficiency. For the first option of CCS, the technology is still under development and there are still several uncertainties today to be widely used for coal fired power plants in the short term. For the second option of biomass co-firing, it can reduce CO{sub 2} emissions in a way, but it is difficult to implement it in China without strong support of incentive policy. Therefore, the third option of improvement of efficiency is the only but also the best and feasible economic option for China to much reduce CO{sub 2} emissions from coal fired power plants. This paper will discuss how China to take a active policy to strongly promote the application of supercritical (SC)/Ultra supercritical (USC) technology. Only in 4 years from 2007 to 2010, ordered capacity of coal fired SC/USC units was 482 units with installed capacity of 230,060 MWe, in which, 1,000 MWe USC with 600 C steam parameters was almost 100 units with 100,000 MWe in which 33 units have been in operation. Today, China has been a country with the largest SC/USC units and capacity. The fast application of SC/USC units for coal fired power plants has resulted in energy saving and reduction of emissions. The average coal consumption in China reduced from 366

  7. Do we really behave the same way? Assessing the three dimensions of organizational commitment as antecedents of human resource practices in a non-western context

    OpenAIRE

    Michel Zaitouni Ph.D

    2013-01-01

    This paper explores the underlying processes and the mechanisms by which HR practices exert influence on the three dimensions of commitment-affective, continuance and normative- in a non-western context focusing on the banking sector of Lebanon.                                                       Data were collected as part of a more general survey of job-related attitudes among various levels of employees of the participant banks. Of the 1000 questionnaires distributed in the different ban...

  8. Accumulation of operational history through emulation test to meet proven technology requirement for newly developed I and C technology

    International Nuclear Information System (INIS)

    Yeong Cheol, Shin; Sung Kon, Kang; Han Seong, Son

    2006-01-01

    at the emulated environment. Verification and validation are performed for detecting problems of the new technology. Verification of the equipment is done in two ways, one is to evaluate the features of the equipment according to the criteria derived from good practices of well proven I and C products and the second is to evaluate the features of the equipment by I and C experts. Validations are done in two ways, one is to validate the functions and performance of the equipment and the other is to validate the robustness of the equipment by accumulation operational experience. (authors)

  9. Neutron Activation Analysis of Archaeological Pottery Samples of Large Size, Including Pieces of Low Symmetry Shape: How to Get Accurate Analytical Results in a Practical Way

    International Nuclear Information System (INIS)

    Bedregal, P.S.; Montoya, E.H.; Mendoza, P.; Ubillús, M.; Baltuano, O.; Hernández, Y.; Gago, J.; Cohen, I.M.

    2018-01-01

    The feasibility of the instrumental neutron activation analysis of entire pieces of archaeological pottery, using low thermal neutron fluxes, is examined and a new approach for the non-destructive analysis of entire pottery objects by INAA, using the conventional relative method, is described. The proposed method relies in the preparation of a comparison standard, which is a nominally identical replicate of the original object to be studied. INAA of small samples taken from that replicate allows determining its composition for the elements to be analyzed. Then the intact sample and intact standard are irradiated together with the neutrons from a nuclear reactor neutron beam, using a suitable turntable facility and monitored by neutron flux monitors. Finally, after proper decay times, the induced activities in sample, standard and flux monitors, are successively measured, by high-resolution gamma spectroscopy, using a high-efficiency germanium detector. In this way, several complicating effects such geometrical efficiency, neutron self-shielding and gamma ray attenuation are avoided and the need of complicated mathematical corrections is not needed. A potential advantage of the method is that it can be fully validated. Quantitative experiments using 7 - 13 hours of irradiation of pairs of 750 grams replicates, at low neutron fluxes of 3.9 x10 6 n cm -2 s -1 , followed by 100000 to 200000 seconds of counting in front of a 70% relative efficiency HPGe detector, led to recoveries between 90% and 110% for Sc and La. Another experiment, using pairs of replicates of small solid mud anthropomorphic objects, (weighing about 100 grams each), irradiated by 8 hours at a neutron flux of 10 9 n cm -2 s -1 , led to recoveries better than 90% and 110% for As, Ba, Ce, Co, Cr, Cs, Eu, Fe, Hf, La, Lu, Rb, Sb, Sc, Sm, Ta, Tb, Th, Yb and U, showing that the proposed method is suitable for LSNAA of entire pottery or mud archaeological objects. (author)

  10. Proven Alternatives for Aboveground Treatment of Arsenic in Groundwater

    Science.gov (United States)

    This issue paper, developed for EPA's Engineering Forum, identifies and summarizes experiences with proven aboveground treatment alternatives for arsenic in groundwater, and provides information on their relative effectiveness and cost.

  11. The Symbiotic Relationship between Scientific Workflow and Provenance (Invited)

    Science.gov (United States)

    Stephan, E.

    2010-12-01

    The purpose of this presentation is to describe the symbiotic nature of scientific workflows and provenance. We will also discuss the current trends and real world challenges facing these two distinct research areas. Although motivated differently, the needs of the international science communities are the glue that binds this relationship together. Understanding and articulating the science drivers to these communities is paramount as these technologies evolve and mature. Originally conceived for managing business processes, workflows are now becoming invaluable assets in both computational and experimental sciences. These reconfigurable, automated systems provide essential technology to perform complex analyses by coupling together geographically distributed disparate data sources and applications. As a result, workflows are capable of higher throughput in a shorter amount of time than performing the steps manually. Today many different workflow products exist; these could include Kepler and Taverna or similar products like MeDICI, developed at PNNL, that are standardized on the Business Process Execution Language (BPEL). Provenance, originating from the French term Provenir “to come from”, is used to describe the curation process of artwork as art is passed from owner to owner. The concept of provenance was adopted by digital libraries as a means to track the lineage of documents while standards such as the DublinCore began to emerge. In recent years the systems science community has increasingly expressed the need to expand the concept of provenance to formally articulate the history of scientific data. Communities such as the International Provenance and Annotation Workshop (IPAW) have formalized a provenance data model. The Open Provenance Model, and the W3C is hosting a provenance incubator group featuring the Proof Markup Language. Although both workflows and provenance have risen from different communities and operate independently, their mutual

  12. Growth and quality of Grevillea robusta provenances in Ruhande ...

    African Journals Online (AJOL)

    user

    used as sawn timber for furniture industry, for construction and packaging. ... seven Queensland (Australia) provenances and one land race on an oxisol at Ruhande .... Statistical analyses were carried out using Statistical Analysis Systems.

  13. Fingerprinting the Milky Way

    Science.gov (United States)

    2007-03-01

    genealogic tree of the Milky Way. This chemical mapping through time and space will be a way to test theoretical models. "The path to an extensive use of chemical tagging is still long," cautions De Silva, "but our study shows that it is possible. When the technique is tested and proven we will be able to get a detailed picture of the way our Galactic cradle formed." More Information The research presented here is discussed in a paper in the Astronomical Journal, volume 133, pages 1161-1175 ("Chemical homogeneity in Collinder 261 and implications for chemical tagging", by G.M. De Silva et al.). The team is composed of Gayandhi De Silva (ESO), Kenneth Freeman, Martin Asplund and Michael Bessell (Mount Stromlo Observatory, Australia), Joss Bland-Hawthorn (Anglo-Australian Observatory, Australia), Remo Collet (Uppsala University, Sweden).

  14. DataONE: A Data Federation with Provenance Support

    Energy Technology Data Exchange (ETDEWEB)

    Cao, Yang [University of Illinois at Urbana-Champaign; Jones, Christopher [National Center for Ecological Analysis and Synthesis, Santa Barbara; Cuevas-Vicenttin, Victor [ Universidad Popular Autónoma del Estado de Puebla, Puebla, Mexico; Jones, Matthew B. [National Center for Ecological Analysis and Synthesis, Santa Barbara; Ludascher, Bertram [University of Illinois at Urbana-Champaign; McPhillips, Timothy [University of Illinois at Urbana-Champaign; Missier, Paolo [Newcastle University, UK; Schwalm, Christopher [Woods Hole Research Center (WHRC), Massachusetts; Slaughter, Peter [National Center for Ecological Analysis and Synthesis, Santa Barbara; Vieglais, Dave [University of Kansas; Walker, Lauren [National Center for Ecological Analysis and Synthesis, Santa Barbara

    2016-01-01

    DataONE is a federated data network focusing on earth and environmental science data. We present the provenance and search features of DataONE by means of an example involving three earth scientists who interact through a DataONE Member Node. DataONE provenance systems enable reproducible research and facilitate proper attribution of scientific results transitively across generations of derived data products.

  15. Using Blockchain and smart contracts for secure data provenance management

    OpenAIRE

    Ramachandran, Aravind; Kantarcioglu, Dr. Murat

    2017-01-01

    Blockchain technology has evolved from being an immutable ledger of transactions for cryptocurrencies to a programmable interactive the environment for building distributed reliable applications. Although, blockchain technology has been used to address various challenges, to our knowledge none of the previous work focused on using blockchain to develop a secure and immutable scientific data provenance management framework that automatically verifies the provenance records. In this work, we le...

  16. LabelFlow Framework for Annotating Workflow Provenance

    Directory of Open Access Journals (Sweden)

    Pinar Alper

    2018-02-01

    Full Text Available Scientists routinely analyse and share data for others to use. Successful data (reuse relies on having metadata describing the context of analysis of data. In many disciplines the creation of contextual metadata is referred to as reporting. One method of implementing analyses is with workflows. A stand-out feature of workflows is their ability to record provenance from executions. Provenance is useful when analyses are executed with changing parameters (changing contexts and results need to be traced to respective parameters. In this paper we investigate whether provenance can be exploited to support reporting. Specifically; we outline a case-study based on a real-world workflow and set of reporting queries. We observe that provenance, as collected from workflow executions, is of limited use for reporting, as it supports queries partially. We identify that this is due to the generic nature of provenance, its lack of domain-specific contextual metadata. We observe that the required information is available in implicit form, embedded in data. We describe LabelFlow, a framework comprised of four Labelling Operators for decorating provenance with domain-specific Labels. LabelFlow can be instantiated for a domain by plugging it with domain-specific metadata extractors. We provide a tool that takes as input a workflow, and produces as output a Labelling Pipeline for that workflow, comprised of Labelling Operators. We revisit the case-study and show how Labels provide a more complete implementation of reporting queries.

  17. Lightweight Provenance Service for High-Performance Computing

    Energy Technology Data Exchange (ETDEWEB)

    Dai, Dong; Chen, Yong; Carns, Philip; Jenkins, John; Ross, Robert

    2017-09-09

    Provenance describes detailed information about the history of a piece of data, containing the relationships among elements such as users, processes, jobs, and workflows that contribute to the existence of data. Provenance is key to supporting many data management functionalities that are increasingly important in operations such as identifying data sources, parameters, or assumptions behind a given result; auditing data usage; or understanding details about how inputs are transformed into outputs. Despite its importance, however, provenance support is largely underdeveloped in highly parallel architectures and systems. One major challenge is the demanding requirements of providing provenance service in situ. The need to remain lightweight and to be always on often conflicts with the need to be transparent and offer an accurate catalog of details regarding the applications and systems. To tackle this challenge, we introduce a lightweight provenance service, called LPS, for high-performance computing (HPC) systems. LPS leverages a kernel instrument mechanism to achieve transparency and introduces representative execution and flexible granularity to capture comprehensive provenance with controllable overhead. Extensive evaluations and use cases have confirmed its efficiency and usability. We believe that LPS can be integrated into current and future HPC systems to support a variety of data management needs.

  18. S-ProvFlow: provenance model and tools for scalable and adaptive analysis pipelines in geoscience.

    Science.gov (United States)

    Spinuso, A.; Mihajlovski, A.; Atkinson, M.; Filgueira, R.; Klampanos, I.; Sanchez, S.

    2017-12-01

    The reproducibility of scientific findings is essential to improve the quality and application of modern data-driven research. Delivering such reproducibility is challenging in the context of systems handling large data-streams with sophisticated computational methods. Similarly, the SKA (Square Kilometer Array) will collect an unprecedented volume of radio-wave signals that will have to be reduced and transformed into derived products, with impact on space-weather research. This highlights the importance of having cross-disciplines mechanisms at the producer's side that rely on usable lineage data to support validation and traceability of the new artifacts. To be informative, provenance has to describe each methods' abstractions and their implementation as mappings onto distributed platforms and their concurrent execution, capturing relevant internal dependencies at runtime. Producers and intelligent toolsets should be able to exploit the produced provenance, steering real-time monitoring activities and inferring adaptations of methods at runtime.We present a model of provenance (S-PROV) that extends W3C PROV and ProvONE, broadening coverage of provenance to aspects related to distribution, scale-up and steering of stateful streaming operators in analytic pipelines. This is supported by a technical framework for tuneable and actionable lineage, ensuring its relevance to the users' interests, fostering its rapid exploitation to facilitate research practices. By applying concepts such as provenance typing and profiling, users define rules to capture common provenance patterns and activate selective controls based on domain-metadata. The traces are recorded in a document-store with index optimisation and a web API serves advanced interactive tools (S-ProvFlow, https://github.com/KNMI/s-provenance). These allow different classes of consumers to rapidly explore the provenance data. The system, which contributes to the SKA-Link initiative, within technology and

  19. “Team Building: Proven Strategies for Improving Team Performance, 4th Edition”

    Directory of Open Access Journals (Sweden)

    Greg Homan

    2008-12-01

    Full Text Available Team Building is an important issue for Youth Development professionals. We utilize team-focused work to achieve our objectives in educating youth. The team building skills we integrate into programming serve to prepare youth for the dynamic, highly interpersonal work environment of today. “Team Building: Proven Strategies for Improving Team Performance, 4th Edition,” by W. Dyer, W.G. Dyer, and J. Dyer (2007, provides a practical theoretical framework for those interested in team building application, training, and practice in everyday work.

  20. Energy policy - way out and wrong way

    International Nuclear Information System (INIS)

    Anon.

    1989-01-01

    The way out, i.e. the right solution of the energy supply problem, is solar energy. The wrong way are high-temperature reactors and nuclear fusion. Arguments are put forward that nuclear fusion, considered an alternative to the harmful nuclear fission even by some nuclear opponents, is in fact equally harmful. (qui)

  1. Provenance Usage in the OceanLink Project

    Science.gov (United States)

    Narock, T.; Arko, R. A.; Carbotte, S. M.; Chandler, C. L.; Cheatham, M.; Fils, D.; Finin, T.; Hitzler, P.; Janowicz, K.; Jones, M.; Krisnadhi, A.; Lehnert, K. A.; Mickle, A.; Raymond, L. M.; Schildhauer, M.; Shepherd, A.; Wiebe, P. H.

    2014-12-01

    A wide spectrum of maturing methods and tools, collectively characterized as the Semantic Web, is helping to vastly improve thedissemination of scientific research. The OceanLink project, an NSF EarthCube Building Block, is utilizing semantic technologies tointegrate geoscience data repositories, library holdings, conference abstracts, and funded research awards. Provenance is a vital componentin meeting both the scientific and engineering requirements of OceanLink. Provenance plays a key role in justification and understanding when presenting users with results aggregated from multiple sources. In the engineering sense, provenance enables the identification of new data and the ability to determine which data sources to query. Additionally, OceanLink will leverage human and machine computation for crowdsourcing, text mining, and co-reference resolution. The results of these computations, and their associated provenance, will be folded back into the constituent systems to continually enhance precision and utility. We will touch on the various roles provenance is playing in OceanLink as well as present our use of the PROV Ontology and associated Ontology Design Patterns.

  2. Provenance-based refresh in data-oriented workflows

    KAUST Repository

    Ikeda, Robert; Salihoglu, Semih; Widom, Jennifer

    2011-01-01

    We consider a general workflow setting in which input data sets are processed by a graph of transformations to produce output results. Our goal is to perform efficient selective refresh of elements in the output data, i.e., compute the latest values of specific output elements when the input data may have changed. We explore how data provenance can be used to enable efficient refresh. Our approach is based on capturing one-level data provenance at each transformation when the workflow is run initially. Then at refresh time provenance is used to determine (transitively) which input elements are responsible for given output elements, and the workflow is rerun only on that portion of the data needed for refresh. Our contributions are to formalize the problem setting and the problem itself, to specify properties of transformations and provenance that are required for efficient refresh, and to provide algorithms that apply to a wide class of transformations and workflows. We have built a prototype system supporting the features and algorithms presented in the paper. We report preliminary experimental results on the overhead of provenance capture, and on the crossover point between selective refresh and full workflow recomputation. © 2011 ACM.

  3. Determination of marble provenance: limits of isotopic analysis

    International Nuclear Information System (INIS)

    Germann, K.; Holzmann, G.; Winkler, F.J.

    1980-01-01

    Provenance determination of Thessalian stelae marbles using the C/O isotopic analysis proved to be misleading, as the isotopic composition even in very small quarrying areas is heterogeneous and isotopic coincidence of marbles from very distant sources occurs. Therefore additional geological features must be taken into consideration and preference should be given to combinations of both petrographical and geochemical properties. Geological field work to establish the range of possible marble sources and the variability within these sources is one of the prerequisites of provenance studies. (author)

  4. PIXE study on the provenance of Chinese ancient porcelain

    International Nuclear Information System (INIS)

    Zhu, D.; Cheng, H.S.; Lin, J.W.; Yang, F.J.

    2006-01-01

    This paper reports the PIXE study on the provenance of Chinese ancient porcelain made in 7-10th century. The chemical compositions of Jun celadon samples made at Juntai, Linru and Hunyuan kilns, the white-glazed porcelain samples made at Ding, Huangye and Dangyangyu kilns, and the Ru celadon samples made at Qiangliang Temple were measured by external-beam PIXE, and the factor analysis was applied for identifying their provenances. Experimental results show that the porcelain products made at different kilns can be distinguished according to the compositional differences measured by PIXE

  5. PIXE study on the provenance of Chinese ancient porcelain

    Energy Technology Data Exchange (ETDEWEB)

    Zhu, D. [Institute of Modern Physics, Fudan University, 220 Handan Road, Shanghai 200433 (China); Cheng, H.S. [Institute of Modern Physics, Fudan University, 220 Handan Road, Shanghai 200433 (China)]. E-mail: hscheng@fudan.edu.cn; Lin, J.W. [Institute of Modern Physics, Fudan University, 220 Handan Road, Shanghai 200433 (China); Yang, F.J. [Institute of Modern Physics, Fudan University, 220 Handan Road, Shanghai 200433 (China)

    2006-08-15

    This paper reports the PIXE study on the provenance of Chinese ancient porcelain made in 7-10th century. The chemical compositions of Jun celadon samples made at Juntai, Linru and Hunyuan kilns, the white-glazed porcelain samples made at Ding, Huangye and Dangyangyu kilns, and the Ru celadon samples made at Qiangliang Temple were measured by external-beam PIXE, and the factor analysis was applied for identifying their provenances. Experimental results show that the porcelain products made at different kilns can be distinguished according to the compositional differences measured by PIXE.

  6. PIXE study on the provenance of Chinese ancient porcelain

    Science.gov (United States)

    Zhu, D.; Cheng, H. S.; Lin, J. W.; Yang, F. J.

    2006-08-01

    This paper reports the PIXE study on the provenance of Chinese ancient porcelain made in 7-10th century. The chemical compositions of Jun celadon samples made at Juntai, Linru and Hunyuan kilns, the white-glazed porcelain samples made at Ding, Huangye and Dangyangyu kilns, and the Ru celadon samples made at Qiangliang Temple were measured by external-beam PIXE, and the factor analysis was applied for identifying their provenances. Experimental results show that the porcelain products made at different kilns can be distinguished according to the compositional differences measured by PIXE.

  7. The Way in Which Leadership Is Conceived

    Science.gov (United States)

    Ryan, Jim

    2010-01-01

    There are many important priorities for leadership education in a democratic society. In this article, the author concentrates on just one--the way in which leadership is conceived. This is an important issue. Indeed, the way in which potential leaders perceive leadership will shape the way in which they eventually practice it. The problem to date…

  8. Provenance of sandstone on the western flank of Anambra Basin ...

    African Journals Online (AJOL)

    Petrographic and heavy mineral studies were carried out on clastic deposits that crop out in Ikpeshi, Auchi and Fugar localities in order to determine the provenance of the ... The heavy mineral suites and the petrographic signatures of the sandstones suggest derivation mainly from acid igneous rocks, gneisses and older ...

  9. Towards Automatic Capturing of Manual Data Processing Provenance

    NARCIS (Netherlands)

    Wombacher, Andreas; Huq, M.R.

    2011-01-01

    Often data processing is not implemented by a work ow system or an integration application but is performed manually by humans along the lines of a more or less specified procedure. Collecting provenance information during manual data processing can not be automated. Further, manual collection of

  10. Changing provenance of late Cenozoic sediments in the Jianghan Basin

    Directory of Open Access Journals (Sweden)

    Lei Shao

    2015-07-01

    Full Text Available The Yangtze River is one of the most important components of the East Asia river system. In this study, sediments in the Jianghan Basin, middle Yangtze River, were selected for trace element and rare earth element (REE measurements, in order to decipher information on the change of sediment provenance and evolution of the Yangtze River. According to the elemental variations, the late Cenozoic sediments of the Jianghan Basin could be divided into four parts. During 2.68–2.28 Ma and 1.25–0 Ma, provenance of the sediments was consistent, whereas sediments were derived from variable sources during 2.28–1.25 Ma. Comparison of the elemental compositions between the Pliocene and Quaternary sediments revealed a change in sediment source from a more felsic source area to a more basic source area around the Pliocene–Quaternary boundary. Input from the Emeishan LIP should account for this provenance change. Based on the provenance analysis of sediments in the Jianghan Basin, we infer that the Yangtze River developed into a large river with its drainage basin extended to the Emeishan LIP no later than the Pliocene–Quaternary boundary.

  11. Outcome of biopsy proven minimal change disease (MCD) in children

    African Journals Online (AJOL)

    Background and Objectives: MCD is the most common histological sub-type of nephrotic syndrome with variable clinical course in children. There are limited studies in literature on the outcome of biopsy proven MCD. The objective was to look at the treatment response and outcome of patients with MCD treated at a tertiary ...

  12. Growth and quality of Grevillea robusta provenances in Ruhande ...

    African Journals Online (AJOL)

    user

    seven Queensland (Australia) provenances and one land race on an oxisol at Ruhande Arboretum,. Butare, Rwanda was carried out. The species is .... could not be executed due to problems of war and genocide in 1994. Assessment procedures ..... Forest Ecology and Management 80: 279-285. 10. Kalinganire, A. 1999.

  13. Scab susceptibility of a provenance collection of pecan

    Science.gov (United States)

    Scab (caused by Fusicladium effusum) is the most economically destructive disease of pecan in the Southeast US. Epidemics are favored by rainfall and high humidity. A provenance collection of ~950 pecan trees from 19 locations representing the native range of the species is located in Byron, Georgia...

  14. Facilitating Fine Grained Data Provenance using Temporal Data Model

    NARCIS (Netherlands)

    Huq, M.R.; Wombacher, Andreas; Apers, Peter M.G.

    2010-01-01

    E-science applications use fine grained data provenance to maintain the reproducibility of scientific results, i.e., for each processed data tuple, the source data used to process the tuple as well as the used approach is documented. Since most of the e-science applications perform on-line

  15. Provenance-Based Debugging and Drill-Down in Data-Oriented Workflows

    KAUST Repository

    Ikeda, Robert; Cho, Junsang; Fang, Charlie; Salihoglu, Semih; Torikai, Satoshi; Widom, Jennifer

    2012-01-01

    Panda (for Provenance and Data) is a system that supports the creation and execution of data-oriented workflows, with automatic provenance generation and built-in provenance tracing operations. Workflows in Panda are arbitrary a cyclic graphs

  16. Bridging the provenance gap: opportunities and challenges tracking in and ex silico provenance in sUAS workflows

    Science.gov (United States)

    Thomer, A.

    2017-12-01

    Data provenance - the record of the varied processes that went into the creation of a dataset, as well as the relationships between resulting data objects - is necessary to support the reusability, reproducibility and reliability of earth science data. In sUAS-based research, capturing provenance can be particularly challenging because of the breadth and distributed nature of the many platforms used to collect, process and analyze data. In any given project, multiple drones, controllers, computers, software systems, sensors, cameras, imaging processing algorithms and data processing workflows are used over sometimes long periods of time. These platforms and processing result in dozens - if not hundreds - of data products in varying stages of readiness-for-analysis and sharing. Provenance tracking mechanisms are needed to make the relationships between these many data products explicit, and therefore more reusable and shareable. In this talk, I discuss opportunities and challenges in tracking provenance in sUAS-based research, and identify gaps in current workflow-capture technologies. I draw on prior work conducted as part of the IMLS-funded Site-Based Data Curation project in which we developed methods of documenting in and ex silico (that is, computational and non-computation) workflows, and demonstrate this approaches applicability to research with sUASes. I conclude with a discussion of ontologies and other semantic technologies that have potential application in sUAS research.

  17. The impact of seeds provenance and nursery provenance method on Austrian pine (Pinus nigra Arn. seedlings quality

    Directory of Open Access Journals (Sweden)

    Vladan Ivetić

    2013-12-01

    Full Text Available The influence of seed provenances and seedling production methods on quality of one and two years old seedlings of Austrian pine were investigated. Seeds from three provenances of Austrian pine (Goc, Studenica and Sargan were used for seedlings production, combined with three production methods: (i the modified seedbeds (bare-root, (ii the container type Plantagrah II and (iii the container type Gocko. Provenance, as well as the combined influence of provenance and production method had minimal influence on the variability of one and two years old Austrian pine seedlings. Nevertheless, the production method had the highest influence. The production system, besides its importance in nursery, will have a high influence on seedlings growth during the first year after planting. Considering the results of this study (e.g. the highest values of the diameter, number of lateral roots, shoot and root dry weight, and quality index and the lowest value of SQ and satisfactory value of S:R, we can conclude that the seedlings produced in container type Gocko led to the highest seedlings quality, recommended especially for afforestation on hard sites.     

  18. New ways of insulin delivery.

    Science.gov (United States)

    Heinemann, L

    2010-02-01

    When Exubera (EXU), the first inhaled insulin formulation to make it through the clinical development process, was introduced to the market some years ago it was hoped that this would be the first in a series of novel insulin formulations applied by this route. In addition, it was hoped that inhaled insulin would pave the way for other alternative routes of insulin administration (ARIA), i.e. oral insulin, nasal insulin or transdermal insulin to mention only some of the different attempts that have been studied in the last 90 years. The failure of EXU, i.e. its withdrawal from the market due to insufficient market success, was followed by the cessation of nearly all other attempts to develop inhaled insulin formulations. Currently there is only one company (MannKind) which moves sturdily ahead with their Technosphere insulin. This company has submitted an NDA for their product recently and hopes to bring it to the market by the end of 2010 or early 2011. Even if the product is able to pass the approval hurdles in the USA and Europe, this does not guarantee that it will become a market success. Many diabetologists were sceptical about the need/advantages of inhaled insulin/EXU from the start and the introduction of this product has raised even more scepticism. Reports about 'side effects' (development of lung cancer in patients treated with EXU) of inhaled insulin are also not helpful, even if the causality of the appearance of cancer with this type of insulin therapy is not proven. One of the very negative consequences of stopping EXU are the huge financial losses to Pfizer. The managers in charge in other pharmaceutical companies and also most venture capitalists are reluctant to invest in ARIA nowadays. This in turn means that many of the small companies that try to develop new forms of insulin administration have issues when they try to find a big brother and/or sufficient financial support. Clearly the economic crisis has further aggravated this issue. One can

  19. ProvenCare perinatal: a model for delivering evidence/ guideline-based care for perinatal populations.

    Science.gov (United States)

    Berry, Scott A; Laam, Leslie A; Wary, Andrea A; Mateer, Harry O; Cassagnol, Hans P; McKinley, Karen E; Nolan, Ruth A

    2011-05-01

    Geisinger Health System (GHS) has applied its ProvenCare model to demonstrate that a large integrated health care delivery system, enabled by an electronic health record (EHR), could reengineer a complicated clinical process, reduce unwarranted variation, and provide evidence-based care for patients with a specified clinical condition. In 2007 GHS began to apply the model to a more complicated, longer-term condition of "wellness"--perinatal care. ADAPTING PROVENCARE TO PERINATAL CARE: The ProvenCare Perinatal initiative was more complex than the five previous ProvenCare endeavors in terms of breadth, scope, and duration. Each of the 22 sites created a process flow map to depict the current, real-time process at each location. The local practice site providers-physicians and mid-level practitioners-reached consensus on 103 unique best practice measures (BPMs), which would be tracked for every patient. These maps were then used to create a single standardized pathway that included the BPMs but also preserved some unique care offerings that reflected the needs of the local context. A nine-phase methodology, expanded from the previous six-phase model, was implemented on schedule. Pre- to postimplementation improvement occurred for all seven BPMs or BPM bundles that were considered the most clinically relevant, with five statistically significant. In addition, the rate of primary cesarean sections decreased by 32%, and birth trauma remained unchanged as the number of vaginal births increased. Preliminary experience suggests that integrating evidence/guideline-based best practices into work flows in inpatient and outpatient settings can achieve improvements in daily patient care processes and outcomes.

  20. Provenance tracking for scientific software toolchains through on-demand release and archiving

    Science.gov (United States)

    Ham, David

    2017-04-01

    There is an emerging consensus that published computational science results must be backed by a provenance chain tying results to the exact versions of input data and the code which generated them. There is also now an impressive range of web services devoted to revision control of software, and the archiving in citeable form of both software and input data. However, much scientific software itself builds on libraries and toolkits, and these themselves have dependencies. Further, it is common for cutting edge research to depend on the latest version of software in online repositories, rather than the official release version. This creates a situation in which an author who wishes to follow best practice in recording the provenance chain of their results must archive and cite unreleased versions of a series of dependencies. Here, we present an alternative which toolkit authors can easily implement to provide a semi-automatic mechanism for creating and archiving custom software releases of the precise version of a package used in a particular simulation. This approach leverages the excellent services provided by GitHub and Zenodo to generate a connected set of citeable DOIs for the archived software. We present the integration of this workflow into the Firedrake automated finite element framework as a practical example of this approach in use on a complex geoscientific tool chain in practical use.

  1. Wrong-way driving.

    NARCIS (Netherlands)

    2006-01-01

    Wrong-way driving is a phenomenon that mainly happens on motorways. Although the number of wrong-way crashes is relatively limited, their consequences are much more severe than the consequences of other motorway injury crashes. The groups most often causing wrong-way driving accidents are young,

  2. Towards Provenance and Traceability in CRISTAL for HEP

    CERN Document Server

    Shamdasani, Jetendr; McClatchey, Richard

    2014-01-01

    This paper discusses the CRISTAL object lifecycle management system and its use in provenance data management and the traceability of system events. This software was initially used to capture the construction and calibration of the CMS ECAL detector at CERN for later use by physicists in their data analysis. Some further uses of CRISTAL in different projects (CMS, neuGRID and N4U) are presented as examples of its flexible data model. From these examples, applications are drawn for the High Energy Physics domain and some initial ideas for its use in data preservation HEP are outlined in detail in this paper. Currently investigations are underway to gauge the feasibility of using the N4U Analysis Service or a derivative of it to address the requirements of data and analysis logging and provenance capture within the HEP long term data analysis environment.

  3. Integrating prediction, provenance, and optimization into high energy workflows

    Energy Technology Data Exchange (ETDEWEB)

    Schram, M.; Bansal, V.; Friese, R. D.; Tallent, N. R.; Yin, J.; Barker, K. J.; Stephan, E.; Halappanavar, M.; Kerbyson, D. J.

    2017-10-01

    We propose a novel approach for efficient execution of workflows on distributed resources. The key components of this framework include: performance modeling to quantitatively predict workflow component behavior; optimization-based scheduling such as choosing an optimal subset of resources to meet demand and assignment of tasks to resources; distributed I/O optimizations such as prefetching; and provenance methods for collecting performance data. In preliminary results, these techniques improve throughput on a small Belle II workflow by 20%.

  4. Nonalbumin proteinuria predominates in biopsy-proven tenofovir nephrotoxicity.

    Science.gov (United States)

    Sise, Meghan E; Hirsch, Jamie S; Canetta, Pietro A; Herlitz, Leal; Mohan, Sumit

    2015-05-15

    Tenofovir disoproxil fumarate (TDF) nephrotoxicity is characterized by proximal renal tubular injury and dysmorphic mitochondria resulting in proteinuria, orthoglycemic glycosuria, and other markers of proximal tubular dysfunction. The objective of this study was to determine the pattern of proteinuria in patients with biopsy-proven TDF nephrotoxicity. Retrospective chart review. Patients with biopsy-proven TDF nephrotoxicity were identified and their medical charts and biopsy reports were reviewed. Comparison was made with HIV-infected patients not on TDF who underwent kidney biopsy. We identified 43 biopsy-proven cases of TDF nephrotoxicity; mean age 54.7 ± 0.4 years, 53% men, 42% whites. Thirty-seven cases reported proteinuria by dipstick of which only 60% had at least 2+ proteinuria. Twenty-seven patients had urine protein quantified by either 24-h collection or spot urine protein-to-creatinine ratio; median proteinuria was 1742 mg/day [interquartile range (IQR) 1200-2000 mg] and 1667 mg/g creatinine (IQR 851-1967 mg/g), respectively. Ten patients had concurrent urinary albumin measured, with a median 236 mg/g creatinine (IQR 137-343 mg/g). The mean urine albumin-to-urine protein ratio (uAPR) was 0.17 (IQR 0.14-0.19), confirming that TDF nephrotoxicity is primarily associated with nonalbumin proteinuria. Control cases had a uAPR of 0.65 (IQR 0.55-0.79) P < 0.001. Histopathology showed the predominance of proximal tubular injury with characteristic mitochondrial abnormalities. In the largest published cohort of patients with biopsy-proven TDF nephrotoxicity, we show that low uAPR is a reliable feature of this disease. Because of the predominance of nonalbumin proteinuria, dipstick urinalysis may be unreliable in TDF nephrotoxicity.

  5. Quantifying the provenance of aeolian sediments using multiple composite fingerprints

    Science.gov (United States)

    Liu, Benli; Niu, Qinghe; Qu, Jianjun; Zu, Ruiping

    2016-09-01

    We introduce a new fingerprinting method that uses multiple composite fingerprints for studies of aeolian sediment provenance. We used this method to quantify the provenance of sediments on both sides of the Qinghai-Tibetan Railway (QTR) in the Cuona Lake section of the Tibetan Plateau (TP), in an environment characterized by aeolian and fluvial interactions. The method involves repeatedly solving a linear mixing model based on mass conservation; the model is not limited to spatial scale or transport types and uses all the tracer groups that passed the range check, Kruskal-Wallis H-test, and a strict analytical solution screening. The proportional estimates that result from using different composite fingerprints are highly variable; however, the average of these fingerprints has a greater accuracy and certainty than any single fingerprint. The results show that sand from the lake beach, hilly surface, and gullies contribute, respectively, 48%, 31% and 21% to the western railway sediments and 43%, 33% and 24% to the eastern railway sediments. The difference between contributions from various sources on either side of the railway, which may increase in the future, was clearly related to variations in local transport characteristics, a conclusion that is supported by grain size analysis. The construction of the QTR changed the local cycling of materials, and the difference in provenance between the sediments that are separated by the railway reflects the changed sedimentary conditions on either side of the railway. The effectiveness of this method suggests that it will be useful in other studies of aeolian sediments.

  6. Neutron activation analysis: a powerful tool in provenance investigations

    International Nuclear Information System (INIS)

    Meloni, Sandro; Oddone, Massimo

    2002-01-01

    It is well known that neutron activation analysis (NAA), both instrumental and destructive, allows the simultaneous determination of a number of elements, mostly trace elements, with high levels of precision and accuracy. These peculiar properties of NAA are very useful when applied to provenance studies, i.e. to the identification of the origin of raw materials with which artifacts had been manufactured in ancient times. Data reduction by statistical procedures, especially multivariate analysis techniques, provides a statistical 'fingerprint' of investigated materials, both raw materials and archaeological artifacts, that, upon comparison, allows the identification of the provenance of prime matters used for artifact manufacturing. Thus information on quarries and flows exploitation in the antiquity, on technological raw materials processing, on trade routes and about the circulation of fakes, can be obtained. In the present paper two case studies are reported. The first one deals with the identification of the provenance of clay used to make ceramic materials, mostly bricks and tiles, recovered from the excavation of a Roman 'villa' in Lomello (Roman name Laumellum) and of Roman settlings in Casteggio (Roman name Clastidium). Both sites are located in the Province of Pavia in areas called Lomellina and Oltrepo respectively. The second one investigates the origin of the white marble used to build medieval arks, Carolingian age, located in the church of San Felice, now property of the University of Pavia. Experimental set-up, analytical results and data reduction procedures are presented and discussed. (author)

  7. Provenance Representation in the Global Change Information System (GCIS)

    Science.gov (United States)

    Tilmes, Curt

    2012-01-01

    Global climate change is a topic that has become very controversial despite strong support within the scientific community. It is common for agencies releasing information about climate change to be served with Freedom of Information Act (FOIA) requests for everything that led to that conclusion. Capturing and presenting the provenance, linking to the research papers, data sets, models, analyses, observation instruments and satellites, etc. supporting key findings has the potential to mitigate skepticism in this domain. The U.S. Global Change Research Program (USGCRP) is now coordinating the production of a National Climate Assessment (NCA) that presents our best understanding of global change. We are now developing a Global Change Information System (GCIS) that will present the content of that report and its provenance, including the scientific support for the findings of the assessment. We are using an approach that will present this information both through a human accessible web site as well as a machine readable interface for automated mining of the provenance graph. We plan to use the developing W3C PROV Data Model and Ontology for this system.

  8. Visualisation methods for large provenance collections in data-intensive collaborative platforms

    Science.gov (United States)

    Spinuso, Alessandro; Fligueira, Rosa; Atkinson, Malcolm; Gemuend, Andre

    2016-04-01

    data visualisation to genomics and social networking analysis. Its adoption for provenance has been presented in literature (Borkin et al. 2013) in the context of parent-child relationships across processes, constructed from control-flow information. Computer graphics research has focused on the advantage of this radial distribution of interlinked information and on ways to improve the visual efficiency and tunability of such representations, like the Hierarchical Edge Bundles visualisation method, (Holten et al. 2006), which aims at reducing visual clutter of highly connected structures via the generation of bundles. Our approach explores the potential of the combination of these methods. It serves environments where the size of the provenance collection, coupled with the diversity of the infrastructures and the domain metadata, make the extrapolation of usage trends extremely challenging. Applications of such visualisation systems can engage groups of scientists, data providers and computational engineers, by serving visual snapshots that highlight relationships between an item and its connected processes. We will present examples of comprehensive views on the distribution of processing and data transfers during a workflow's execution in HPC, as well as cross workflows interactions and internal dynamics. The latter in the context of faceted searches on domain metadata values-range. These are obtained from the analysis of real provenance data generated by the processing of seismic traces performed through the VERCE platform.

  9. A Wimba Way, A Wimba Way

    OpenAIRE

    Beck, Charlotte; Miller, Katherine; Taylor, Sally

    2010-01-01

    Wimba Classroom, like other online teaching tools, gives us a way to connect to our learners at a distance. This software can be used to share desktops, PowerPoint presentations, polls and more. Come and see a demonstration of the software and hear how we’re using Wimba Classroom to teach health care practitioners in a distance education program, undergraduate students in a first-year biology course and participants in an online RefWorks workshop. We’ll also talk about our “Train the Trainer”...

  10. Associating uncertainty with datasets using Linked Data and allowing propagation via provenance chains

    Science.gov (United States)

    Car, Nicholas; Cox, Simon; Fitch, Peter

    2015-04-01

    With earth-science datasets increasingly being published to enable re-use in projects disassociated from the original data acquisition or generation, there is an urgent need for associated metadata to be connected, in order to guide their application. In particular, provenance traces should support the evaluation of data quality and reliability. However, while standards for describing provenance are emerging (e.g. PROV-O), these do not include the necessary statistical descriptors and confidence assessments. UncertML has a mature conceptual model that may be used to record uncertainty metadata. However, by itself UncertML does not support the representation of uncertainty of multi-part datasets, and provides no direct way of associating the uncertainty information - metadata in relation to a dataset - with dataset objects.We present a method to address both these issues by combining UncertML with PROV-O, and delivering resulting uncertainty-enriched provenance traces through the Linked Data API. UncertProv extends the PROV-O provenance ontology with an RDF formulation of the UncertML conceptual model elements, adds further elements to support uncertainty representation without a conceptual model and the integration of UncertML through links to documents. The Linked ID API provides a systematic way of navigating from dataset objects to their UncertProv metadata and back again. The Linked Data API's 'views' capability enables access to UncertML and non-UncertML uncertainty metadata representations for a dataset. With this approach, it is possible to access and navigate the uncertainty metadata associated with a published dataset using standard semantic web tools, such as SPARQL queries. Where the uncertainty data follows the UncertML model it can be automatically interpreted and may also support automatic uncertainty propagation . Repositories wishing to enable uncertainty propagation for all datasets must ensure that all elements that are associated with uncertainty

  11. Lean construction management the Toyota way

    CERN Document Server

    Gao, Shang

    2014-01-01

    The book presents a mixed research method adopted to assess and present the Toyota Way practices within construction firms in general and for firms in China specifically. The results of an extensive structured questionnaire survey based on the Toyota Way-styled attributes identified were developed, and data collected from building professionals working in construction firms is presented. The quantitative data presented in the book explains the status quo of the Toyota Way-styled practices implemented in the construction industry, as well as the extent to which these attributes were perceived for lean construction management. The book highlights all the actionable attributes derived from the Toyota Way model appreciated by the building professionals, but alerts the readers that some attributes felled short of implementation. Further findings from in-depth interviews and case studies are also presented in the book to provide to readers an understanding how these Toyota Way practices can be implemented in real-l...

  12. Provenance metadata gathering and cataloguing of EFIT++ code execution

    International Nuclear Information System (INIS)

    Lupelli, I.; Muir, D.G.; Appel, L.; Akers, R.; Carr, M.; Abreu, P.

    2015-01-01

    Highlights: • An approach for automatic gathering of provenance metadata has been presented. • A provenance metadata catalogue has been created. • The overhead in the code runtime is less than 10%. • The metadata/data size ratio is about ∼20%. • A visualization interface based on Gephi, has been presented. - Abstract: Journal publications, as the final product of research activity, are the result of an extensive complex modeling and data analysis effort. It is of paramount importance, therefore, to capture the origins and derivation of the published data in order to achieve high levels of scientific reproducibility, transparency, internal and external data reuse and dissemination. The consequence of the modern research paradigm is that high performance computing and data management systems, together with metadata cataloguing, have become crucial elements within the nuclear fusion scientific data lifecycle. This paper describes an approach to the task of automatically gathering and cataloguing provenance metadata, currently under development and testing at Culham Center for Fusion Energy. The approach is being applied to a machine-agnostic code that calculates the axisymmetric equilibrium force balance in tokamaks, EFIT++, as a proof of principle test. The proposed approach avoids any code instrumentation or modification. It is based on the observation and monitoring of input preparation, workflow and code execution, system calls, log file data collection and interaction with the version control system. Pre-processing, post-processing, and data export and storage are monitored during the code runtime. Input data signals are captured using a data distribution platform called IDAM. The final objective of the catalogue is to create a complete description of the modeling activity, including user comments, and the relationship between data output, the main experimental database and the execution environment. For an intershot or post-pulse analysis (∼1000

  13. Provenance metadata gathering and cataloguing of EFIT++ code execution

    Energy Technology Data Exchange (ETDEWEB)

    Lupelli, I., E-mail: ivan.lupelli@ccfe.ac.uk [CCFE, Culham Science Centre, Abingdon, Oxon OX14 3DB (United Kingdom); Muir, D.G.; Appel, L.; Akers, R.; Carr, M. [CCFE, Culham Science Centre, Abingdon, Oxon OX14 3DB (United Kingdom); Abreu, P. [Instituto de Plasmas e Fusão Nuclear, Instituto Superior Técnico, Universidade de Lisboa, 1049-001 Lisboa (Portugal)

    2015-10-15

    Highlights: • An approach for automatic gathering of provenance metadata has been presented. • A provenance metadata catalogue has been created. • The overhead in the code runtime is less than 10%. • The metadata/data size ratio is about ∼20%. • A visualization interface based on Gephi, has been presented. - Abstract: Journal publications, as the final product of research activity, are the result of an extensive complex modeling and data analysis effort. It is of paramount importance, therefore, to capture the origins and derivation of the published data in order to achieve high levels of scientific reproducibility, transparency, internal and external data reuse and dissemination. The consequence of the modern research paradigm is that high performance computing and data management systems, together with metadata cataloguing, have become crucial elements within the nuclear fusion scientific data lifecycle. This paper describes an approach to the task of automatically gathering and cataloguing provenance metadata, currently under development and testing at Culham Center for Fusion Energy. The approach is being applied to a machine-agnostic code that calculates the axisymmetric equilibrium force balance in tokamaks, EFIT++, as a proof of principle test. The proposed approach avoids any code instrumentation or modification. It is based on the observation and monitoring of input preparation, workflow and code execution, system calls, log file data collection and interaction with the version control system. Pre-processing, post-processing, and data export and storage are monitored during the code runtime. Input data signals are captured using a data distribution platform called IDAM. The final objective of the catalogue is to create a complete description of the modeling activity, including user comments, and the relationship between data output, the main experimental database and the execution environment. For an intershot or post-pulse analysis (∼1000

  14. IGCC based on proven technology developing towards 50% efficiency mark

    Energy Technology Data Exchange (ETDEWEB)

    Goudappel, E.; Berkhout, M. [Jacobs Consultancy, Leiden (Netherlands)

    2006-07-01

    In this paper the achievements made over the last 10 years in terms of reliability, load following and efficiency improvement potential at the Buggenum IGCC plant, are presented. Also the air side heat integration and its pros and cons are discussed. Additionally future business opportunities adjacent to the power production itself and the view on coal gasification in the near future are provided. The results are discussed and it is shown that with 'proven' gasifier and gas treatment technology, overall efficiency exceeding 47% (LHV basis) can be reached. It puts this technical potential in perspective and describes the view on interesting business opportunities around IGCC projects. 5 figs., 3 tabs.

  15. Rapidly aggravated Creutzfeldt-Jacob disease: autopsy-proven case

    International Nuclear Information System (INIS)

    Park, Seung Hyun; Kang, Hyun Koo; Yu, Hyeon; Lee, Sang Chun

    2005-01-01

    Creutzfeldt-Jakob disease (DJD) is one of the transmissible spongiform encephalopathies, which is mediated by what has been known as 'prion'. It is a rare and fatal progressive neurodegenerative disease that affects the middle and old aged. There are a number of subtypes of CJD, one of which is the sporadic type characterized by rapidly progressing clinical symptoms, including progressive dementia, myoclonic jerk, and pyramidal or extrapyramidal syndrome. Patients usually end up dying within 1 to 2 years of contacting the disease. We report an autopsy-proven case of sporadic CJD with clinical symptoms that progressed within several days, along with dramatic changes on diffusion weighted magnetic resonance images

  16. Nd and Sr isotopes: implications of provenance and geological mapping

    International Nuclear Information System (INIS)

    Albuquerque, Marcio Fernando dos Santos; Horbe, Adriana Maria Coimbra; Dantas, Elton Luiz

    2015-01-01

    XRD, Nd and Sr isotopes, major, minor and traces elements quantification were applied to rocks, lateritic crusts and soils from Sumauma Supergroup and Alto Tapajos Group, in order to indicate provenance of the rocks and using lateritic products as geologic mapping tool. For the rocks, the results showed sources related to provinces Tapajos Parima, Rondonia Juruena, Sunsas, Carajas and Amazonia Central. However, the incision of Cachimbo graben allowed which the Sumauma Supergroup erosion also were source for the Alto Tapajos Group, allied to contribution of volcanics from Colider Group. Lateritic crusts and soils are correlates to bedrocks, allowing the use as geologic mapping tool. (author)

  17. How way leads on to way.

    Science.gov (United States)

    Barash, Isaac

    2014-01-01

    In this article, I briefly recount the historical events in my native country that led me to become a plant pathologist. I started as a field pathologist specializing in fungal diseases of legumes, moved to biochemical research on virulence factors, and then on to molecular plant-microbe interactions. I describe the impact my graduate studies at the University of California (UC)-Davis had on my career. My life's work and teaching can be said to reflect the development in plant pathology during the past 40 years. I have included a concise review of the development of plant pathology in Israel and the ways it is funded. Dealing with administrative duties while conducting research has contributed to my belief in the importance of multidisciplinary approaches and of preserving the applied approach in the teaching of plant pathology.

  18. Neurological symptoms in patients with biopsy proven celiac disease.

    Science.gov (United States)

    Bürk, Katrin; Farecki, Marie-Louise; Lamprecht, Georg; Roth, Guenter; Decker, Patrice; Weller, Michael; Rammensee, Hans-Georg; Oertel, Wolfang

    2009-12-15

    In celiac disease (CD), the gut is the typical manifestation site but atypical neurological presentations are thought to occur in 6 to 10% with cerebellar ataxia being the most frequent symptom. Most studies in this field are focused on patients under primary neurological care. To exclude such an observation bias, patients with biopsy proven celiac disease were screened for neurological disease. A total of 72 patients with biopsy proven celiac disease (CD) (mean age 51 +/- 15 years, mean disease duration 8 +/- 11 years) were recruited through advertisements. All participants adhered to a gluten-free diet. Patients were interviewed following a standard questionnaire and examined clinically for neurological symptoms. Medical history revealed neurological disorders such as migraine (28%), carpal tunnel syndrome (20%), vestibular dysfunction (8%), seizures (6%), and myelitis (3%). Interestingly, 35% of patients with CD reported of a history of psychiatric disease including depression, personality changes, or even psychosis. Physical examination yielded stance and gait problems in about one third of patients that could be attributed to afferent ataxia in 26%, vestibular dysfunction in 6%, and cerebellar ataxia in 6%. Other motor features such as basal ganglia symptoms, pyramidal tract signs, tics, and myoclonus were infrequent. 35% of patients with CD showed deep sensory loss and reduced ankle reflexes in 14%. Gait disturbances in CD do not only result from cerebellar ataxia but also from proprioceptive or vestibular impairment. Neurological problems may even develop despite strict adherence to a gluten-free diet. (c) 2009 Movement Disorder Society.

  19. Multivariate analysis in provenance studies: Cerrillos obsidians case, Peru

    International Nuclear Information System (INIS)

    Bustamante, A.; Delgado, M.; Latini, R. M.; Bellido, A. V. B.

    2007-01-01

    We present the preliminary results of a provenance study of obsidians samples from Cerrillos (ca. 800-100 b.c.) using Moessbauer Spectroscopy. The Cerrillos archaeological site, located in the Upper Ica Valley, Peru, is the only Paracas ceremonial center excavated so far. The archaeological data collected suggest the existence of a complex social and economic organization on the south coast of Peru. Provenance research of obsidian provides valuable information about the selection of lithic resources by our ancestors and eventually about the existence of communication routes and exchange networks. We characterized 18 obsidian artifacts samples by Moessbauer spectroscopy from Cerrillos. The spectra, recorded at room temperature using different velocities, are mainly composed of broad asymmetric doublets due to the superposition of at least two quadrupole doublets corresponding to Fe 2+ in two different sites (species A and B), one weak Fe 3+ doublet (specie C) and magnetic components associated to the presence of small particles of magnetite. Multivariate statistical analysis of the Moessbauer data (hyperfine parameters) allows to defined two main groups of obsidians, reflecting different geographical origins.

  20. Lapis lazuli provenance study by means of micro-PIXE

    Energy Technology Data Exchange (ETDEWEB)

    Re, Alessandro, E-mail: alessandro.re@to.infn.it [Dipartimento di Fisica Sperimentale, Universita di Torino, Via Giuria 1, 10125 Torino (Italy); INFN Sezione di Torino and Centre of Excellence ' Nanostructured Interfaces and Surfaces' , Universita di Torino, Via P. Giuria 1, 10125 Torino (Italy); Giudice, Alessandro Lo [Dipartimento di Fisica Sperimentale, Universita di Torino, Via Giuria 1, 10125 Torino (Italy); INFN Sezione di Torino and Centre of Excellence ' Nanostructured Interfaces and Surfaces' , Universita di Torino, Via P. Giuria 1, 10125 Torino (Italy); Angelici, Debora [Dipartimento di Fisica Sperimentale, Universita di Torino, Via Giuria 1, 10125 Torino (Italy); Calusi, Silvia; Giuntini, Lorenzo; Massi, Mirko [Dipartimento di Fisica, Universita and INFN Sezione di Firenze, Via Sansone 1, 50019 Sesto Fiorentino, Firenze (Italy); Pratesi, Giovanni [Dipartimento di Scienze della Terra and Museo di Storia Naturale, Universita di Firenze, Via G. La Pira 4, 50121 Firenze (Italy)

    2011-10-15

    In this paper we report about the micro-PIXE characterisation of lapis lazuli, for a provenance study of this semi-precious stone, used for glyptic as early as 7000 years ago. The final aim is to find markers permitting to identify the origin of the raw material coming from three quarries in regions of historical importance: Afghanistan, Pamir Mountains and Siberia. This may help to reconstruct trade routes, especially for ancient objects for which written testimonies are scanty or absent at all. Due to the heterogeneity of lapis lazuli we concentrate our attention on single phases instead of the whole stone; in particular we focused on two of the main phases: lazurite, responsible for the blue colour, and diopside, the most frequent accessory mineral. This study was preceded and completed by means of microanalysis with Scanning Electron Microscopy (SEM-EDX) and Cold-Cathodoluminescence (cold-CL) analysis. Despite the limited number of analysed samples, results are sufficient to exclude/suggest a few features as provenance markers, partly confirming what has been previously published in literature.

  1. Lapis lazuli provenance study by means of micro-PIXE

    International Nuclear Information System (INIS)

    Re, Alessandro; Giudice, Alessandro Lo; Angelici, Debora; Calusi, Silvia; Giuntini, Lorenzo; Massi, Mirko; Pratesi, Giovanni

    2011-01-01

    In this paper we report about the micro-PIXE characterisation of lapis lazuli, for a provenance study of this semi-precious stone, used for glyptic as early as 7000 years ago. The final aim is to find markers permitting to identify the origin of the raw material coming from three quarries in regions of historical importance: Afghanistan, Pamir Mountains and Siberia. This may help to reconstruct trade routes, especially for ancient objects for which written testimonies are scanty or absent at all. Due to the heterogeneity of lapis lazuli we concentrate our attention on single phases instead of the whole stone; in particular we focused on two of the main phases: lazurite, responsible for the blue colour, and diopside, the most frequent accessory mineral. This study was preceded and completed by means of microanalysis with Scanning Electron Microscopy (SEM-EDX) and Cold-Cathodoluminescence (cold-CL) analysis. Despite the limited number of analysed samples, results are sufficient to exclude/suggest a few features as provenance markers, partly confirming what has been previously published in literature.

  2. MRI of pathology-proven peripheral nerve amyloidosis

    International Nuclear Information System (INIS)

    McKenzie, Gavin A.; Broski, Stephen M.; Howe, Benjamin M.; Spinner, Robert J.; Amrami, Kimberly K.; Dispenzieri, Angela; Ringler, Michael D.

    2017-01-01

    To highlight the MRI characteristics of pathologically proven amyloidosis involving the peripheral nervous system (PNS) and determine the utility of MRI in directing targeted biopsy for aiding diagnosis. A retrospective study was performed for patients with pathologically proven PNS amyloidosis who also underwent MRI of the biopsied or excised nerve. MRI signal characteristics, nerve morphology, associated muscular denervation changes, and the presence of multifocal involvement were detailed. Pathology reports were reviewed to determine subtypes of amyloid. Charts were reviewed to gather patient demographics, neurological symptoms and radiologist interpretation. Four men and three women with a mean age of 62 ± 11 years (range 46-76) were identified. All patients had abnormal findings on EMG with mixed sensorimotor neuropathy. All lesions demonstrated diffuse multifocal neural involvement with T1 hypointensity, T2 hyperintensity, and variable enhancement on MRI. One lesion exhibited superimposed T2 hypointensity. Six of seven patients demonstrated associated muscular denervation changes. Peripheral nerve amyloidosis is rare, and the diagnosis is difficult because of insidious symptom onset, mixed sensorimotor neurologic deficits, and the potential for a wide variety of nerves affected. On MRI, peripheral nerve involvement is most commonly characterized by T1 hypointensity, T2 hyperintensity, variable enhancement, maintenance of the fascicular architecture with fusiform enlargement, multifocal involvement and muscular denervation changes. While this appearance mimics other inflammatory neuropathies, MRI can readily detect neural changes and direct-targeted biopsy, thus facilitating early diagnosis and appropriate management. (orig.)

  3. Multivariate analysis in provenance studies: Cerrillos obsidians case, Peru

    Science.gov (United States)

    Bustamante, A.; Delgado, M.; Latini, R. M.; Bellido, A. V. B.

    2007-02-01

    We present the preliminary results of a provenance study of obsidians samples from Cerrillos (ca. 800 100 b.c.) using Mössbauer Spectroscopy. The Cerrillos archaeological site, located in the Upper Ica Valley, Peru, is the only Paracas ceremonial center excavated so far. The archaeological data collected suggest the existence of a complex social and economic organization on the south coast of Peru. Provenance research of obsidian provides valuable information about the selection of lithic resources by our ancestors and eventually about the existence of communication routes and exchange networks. We characterized 18 obsidian artifacts samples by Mössbauer spectroscopy from Cerrillos. The spectra, recorded at room temperature using different velocities, are mainly composed of broad asymmetric doublets due to the superposition of at least two quadrupole doublets corresponding to Fe2+ in two different sites (species A and B), one weak Fe3+ doublet (specie C) and magnetic components associated to the presence of small particles of magnetite. Multivariate statistical analysis of the Mössbauer data (hyperfine parameters) allows to defined two main groups of obsidians, reflecting different geographical origins.

  4. MRI of pathology-proven peripheral nerve amyloidosis

    Energy Technology Data Exchange (ETDEWEB)

    McKenzie, Gavin A.; Broski, Stephen M.; Howe, Benjamin M.; Spinner, Robert J.; Amrami, Kimberly K.; Dispenzieri, Angela; Ringler, Michael D. [Mayo Clinic, Department of Musculoskeletal Radiology, Rochester, MN (United States)

    2017-01-15

    To highlight the MRI characteristics of pathologically proven amyloidosis involving the peripheral nervous system (PNS) and determine the utility of MRI in directing targeted biopsy for aiding diagnosis. A retrospective study was performed for patients with pathologically proven PNS amyloidosis who also underwent MRI of the biopsied or excised nerve. MRI signal characteristics, nerve morphology, associated muscular denervation changes, and the presence of multifocal involvement were detailed. Pathology reports were reviewed to determine subtypes of amyloid. Charts were reviewed to gather patient demographics, neurological symptoms and radiologist interpretation. Four men and three women with a mean age of 62 ± 11 years (range 46-76) were identified. All patients had abnormal findings on EMG with mixed sensorimotor neuropathy. All lesions demonstrated diffuse multifocal neural involvement with T1 hypointensity, T2 hyperintensity, and variable enhancement on MRI. One lesion exhibited superimposed T2 hypointensity. Six of seven patients demonstrated associated muscular denervation changes. Peripheral nerve amyloidosis is rare, and the diagnosis is difficult because of insidious symptom onset, mixed sensorimotor neurologic deficits, and the potential for a wide variety of nerves affected. On MRI, peripheral nerve involvement is most commonly characterized by T1 hypointensity, T2 hyperintensity, variable enhancement, maintenance of the fascicular architecture with fusiform enlargement, multifocal involvement and muscular denervation changes. While this appearance mimics other inflammatory neuropathies, MRI can readily detect neural changes and direct-targeted biopsy, thus facilitating early diagnosis and appropriate management. (orig.)

  5. Ocular Manifestations of Biopsy-Proven Pulmonary Sarcoidosis in Korea

    Directory of Open Access Journals (Sweden)

    Seung Yong Choi

    2018-01-01

    Full Text Available Purpose. To investigate the clinical features and ocular manifestations of biopsy-proven pulmonary sarcoidosis in Korea. Methods. 55 patients diagnosed with pulmonary sarcoidosis by bronchoscopic or excisional biopsy were included. By retrospective clinical chart review, we investigated features of uveitis, ocular and systemic treatments, visual acuity, angiotensin-converting enzyme level, chest radiography, and pulmonary function tests. Clinical features were analyzed by presence of uveitis, site of biopsy, and first manifested sign of sarcoidosis. Results. The group with uveitis (n=39 presented with higher systemic (71.8% and immunosuppressive treatment rates (35.9% than the group without uveitis (31.3%, 0%, resp. (P=0.007, P=0.005, resp.. There were no significant differences in clinical features, including systemic treatment rate, by type of biopsy. Of 39 patients with uveitis, the group with ocular manifestation as a first sign of sarcoidosis showed higher systemic and immunosuppressive treatment rates (88.9%, 55.6% compared to the group with pulmonary manifestation as a first sign (57.1%, 19.0% (P=0.037, P=0.018, resp.. Conclusions. In patients with biopsy-proven pulmonary sarcoidosis, the presence of ocular involvement and uveitis as a first sign could be significant factors associated with higher systemic treatment rate, especially with immunosuppressive agents. Biopsy site determined by location and size had no influence on clinical features.

  6. Sacred Way (Greek World)

    NARCIS (Netherlands)

    Williamson, Christina

    2015-01-01

    Sacred ways were roads that led to major sanctuaries, typically those located at a distance from the urban center, and were the vehicles for the processions involved in civic festivals at these shrines.

  7. New ways of insulin delivery.

    Science.gov (United States)

    Heinemann, L

    2011-02-01

    active in the last year; at least they have not published new study results. It is clear that for companies that produce insulin themselves (e.g. Biocon) the costs of the good are not of such relevance as for companies that have to buy it commercially. For the latter ones a low bioavailability/biopotency compared with SC insulin administration can be a real hurdle when it comes to the price of their product. Despite some publications about nasal insulin, the overall activity with this route of insulin administration appears to be low; the same holds true for transdermal insulin. Insulin pens have gained more scientific interest in recent years, which is also reflected by an increase in publications, starting from practically nil 10 years ago to a solid number of five to 10 papers per year nowadays. Besides ARIA there are also attempts to increase the speed of insulin absorption after injection into the skin by applying it not into the SC tissue but intradermally or by heating up the skin above the SC insulin depot. Reading a number of papers that were not included in this chapter because they do not present any clinical data but are novel developments tested only in animal experiments so far, the clear message is that there is definitely not a lack of creativity/imagination amongst scientists; each year a plethora of new ideas for insulin application show up. Unfortunately not too many make it towards a full clinical development. As long as there is not a single successful product on the market that is based on a given ARIA approach, this area of research will not mature. For many patients, avoiding the need for SC injections is attractive; however, as long as no clear 'advantage' can be demonstrated, reimbursement will be difficult to achieve. Living in the time of evidence-based medicine it is clear that 'relevant' clinical advantages must be proven. The question is what is relevant. Is it just an improvement in metabolic control (= decrease in HbA1c)? Can this also

  8. Can cathodoluminescence of feldspar be used as provenance indicator?

    Science.gov (United States)

    Scholonek, Christiane; Augustsson, Carita

    2016-05-01

    We have studied feldspar from crystalline rocks for its textural and spectral cathodoluminescence (CL) characteristics with the aim to reveal their provenance potential. We analyzed ca. 60 rock samples of plutonic, volcanic, metamorphic, and pegmatitic origin from different continents and of 16 Ma to 2 Ga age for their feldspar CL textures and ca. 1200 feldspar crystals from these rocks for their CL color spectra. Among the analyzed rocks, igneous feldspar is most commonly zoned, whereby oscillatory zoning can be confirmed to be typical for volcanic plagioclase. The volcanic plagioclase also less commonly contains twin lamellae that are visible in CL light than crystals from other rock types. Alkali feldspar, particularly from igneous and pegmatitic rocks, was noted to be most affected by alteration features, visible as dark spots, lines and irregular areas. The size of all textural features of up to ca. 150 μm, in combination with possible alteration in both the source area and the sedimentary system, makes the CL textures of feldspar possible to use for qualitative provenance research only. We observed alkali feldspar mostly to luminesce in a bluish color and sometimes in red, and plagioclase in green to yellow. The corresponding CL spectra are dominated by three apparent intensity peaks at 440-520 nm (mainly blue), 540-620 nm (mainly green) and 680-740 nm (red to infrared). A dominance of the peak in the green wavelength interval over the blue one for plagioclase makes CL particularly useful for the differentiation of plagioclase from alkali feldspar. An apparent peak position in red to infrared at < 710 nm for plagioclase mainly is present in mafic rocks. Present-day coastal sand from Peru containing feldspar with the red to infrared peak position mainly exceeding 725 nm for northern Peruvian sand and a larger variety for sand from southern Peru illustrates a discriminative effect of different source areas. We conclude that the provenance application

  9. Scale models: A proven cost-effective tool for outage planning

    Energy Technology Data Exchange (ETDEWEB)

    Lee, R. [Commonwealth Edison Co., Morris, IL (United States); Segroves, R. [Sargent & Lundy, Chicago, IL (United States)

    1995-03-01

    As generation costs for operating nuclear stations have risen, more nuclear utilities have initiated efforts to improve cost effectiveness. Nuclear plant owners are also being challenged with lower radiation exposure limits and new revised radiation protection related regulations (10 CFR 20), which places further stress on their budgets. As source term reduction activities continue to lower radiation fields, reducing the amount of time spent in radiation fields becomes one of the most cost-effective ways of reducing radiation exposure. An effective approach for minimizing time spent in radiation areas is to use a physical scale model for worker orientation planning and monitoring maintenance, modifications, and outage activities. To meet the challenge of continued reduction in the annual cumulative radiation exposures, new cost-effective tools are required. One field-tested and proven tool is the physical scale model.

  10. An Urban Way of Life

    DEFF Research Database (Denmark)

    Haase, Kirstine

    This paper presents how my PhD project “An Urban Way of life – practices, networks and identities in Odense 1100-1500 AD” engages with the overall research perspectives presented in the research and public outreach project “Urban Encounters”. I will explore how urbanism in Medieval Odense can...... of the cultural deposits and sampling for scientific analysis. It resulted in an extensive finds assemblage and well-preserved structures such as booths, houses, byres and stables, latrines, paths, roads, fences, manure heaps and much more with a vast potential for further research. One of the features...... was a large latrine from the 15th century that contained a variety of finds such as coopered beakers, seeds from plants or fruits and ceramics. The latrine does not only tell about people and practices of daily life but studied with a contextual approach and chaine operatoire as point of departure...

  11. Federated provenance of oceanographic research cruises: from metadata to data

    Science.gov (United States)

    Thomas, Rob; Leadbetter, Adam; Shepherd, Adam

    2016-04-01

    The World Wide Web Consortium's Provenance Data Model and associated Semantic Web ontology (PROV-O) have created much interest in the Earth and Space Science Informatics community (Ma et al., 2014). Indeed, PROV-O has recently been posited as an upper ontology for the alignment of various data models (Cox, 2015). Similarly, PROV-O has been used as the building blocks of a data release lifecycle ontology (Leadbetter & Buck, 2015). In this presentation we show that the alignment between different local data descriptions of an oceanographic research cruise can be achieved through alignment with PROV-O and that descriptions of the funding bodies, organisations and researchers involved in a cruise and its associated data release lifecycle can be modelled within a PROV-O based environment. We show that, at a first-order, this approach is scalable by presenting results from three endpoints (the Biological and Chemical Oceanography Data Management Office at Woods Hole Oceanographic Institution, USA; the British Oceanographic Data Centre at the National Oceanography Centre, UK; and the Marine Institute, Ireland). Current advances in ontology engineering, provide pathways to resolving reasoning issues from varying perspectives on implementing PROV-O. This includes the use of the Information Object design pattern where such edge cases as research cruise scheduling efforts are considered. PROV-O describes only things which have happened, but the Information Object design pattern allows for the description of planned research cruises through its statement that the local data description is not the the entity itself (in this case the planned research cruise) and therefore the local data description itself can be described using the PROV-O model. In particular, we present the use of the data lifecycle ontology to show the connection between research cruise activities and their associated datasets, and the publication of those data sets online with Digital Object Identifiers and

  12. Rapidly aggravated Creutzfeldt-Jacob disease: autopsy-proven case

    Energy Technology Data Exchange (ETDEWEB)

    Park, Seung Hyun; Kang, Hyun Koo; Yu, Hyeon; Lee, Sang Chun [Seoul Veterans Hospital, Seoul (Korea, Republic of)

    2005-11-15

    Creutzfeldt-Jakob disease (DJD) is one of the transmissible spongiform encephalopathies, which is mediated by what has been known as 'prion'. It is a rare and fatal progressive neurodegenerative disease that affects the middle and old aged. There are a number of subtypes of CJD, one of which is the sporadic type characterized by rapidly progressing clinical symptoms, including progressive dementia, myoclonic jerk, and pyramidal or extrapyramidal syndrome. Patients usually end up dying within 1 to 2 years of contacting the disease. We report an autopsy-proven case of sporadic CJD with clinical symptoms that progressed within several days, along with dramatic changes on diffusion weighted magnetic resonance images.

  13. EPR spectroscopy can help with paint pigment provenance

    International Nuclear Information System (INIS)

    Troup, G.J.; Hutton, D.R.

    2000-01-01

    Full text: The microwave magnetic spectroscopic technique EPR can be used to determine the presence of paramagnetic impurities in paint pigments, and the purity of composition regarding the main colourant. Hence EPR can help determine provenance of pigments, just as it can for gemstones. Specimens of Lapis Lazuli (synthetic, Afghanistan, Chile, Greenland) showed quite recognisably different spectra, at room temperature, in a Varian E-12 X-band spectrometer (9.1 GHz frequency). Similarly, specimens of yellow ochre, two imported into Australia, one North Australian, another 95% pure Goethite, showed recognisably different spectra. The North Australian one uniquely gave a known radiation damage signal from quartz, perhaps to be expected, given the abundance of radioactive ores in the region. Further samples have been obtained and the results from these will be reported

  14. The provenance investigation on ancient chinese Ru porcelains by NAA

    International Nuclear Information System (INIS)

    Gao Zhengyao; Wang Jie; Chen Songhua

    1997-01-01

    The 28 samples of glazes and bodies of ancient Chinese Ru porcelains are analyzed by neutron activation. The 36 element contents in each sample are determined. The neutron activation analysis (NAA) data are analyzed by fuzzy cluster. The trend cluster diagram is obtained. The result shows that the ancient Chinese Ru porcelains were most probably from the same raw material source though they were from different time, fired in different kilns and in different colors. The near provenance relation between ancient Jun porcelain and ancient Ru porcelain is preliminarily analyzed. The two modern Ru porcelains approximate to ancient Ru porcelains, one becomes estranged from ancient Ru porcelains. Jingdezhen porcelain is unconcerned with Ru porcelains

  15. ASDF: An Adaptable Seismic Data Format with Full Provenance

    Science.gov (United States)

    Smith, J. A.; Krischer, L.; Tromp, J.; Lefebvre, M. P.

    2015-12-01

    In order for seismologists to maximize their knowledge of how the Earth works, they must extract the maximum amount of useful information from all recorded seismic data available for their research. This requires assimilating large sets of waveform data, keeping track of vast amounts of metadata, using validated standards for quality control, and automating the workflow in a careful and efficient manner. In addition, there is a growing gap between CPU/GPU speeds and disk access speeds that leads to an I/O bottleneck in seismic workflows. This is made even worse by existing seismic data formats that were not designed for performance and are limited to a few fixed headers for storing metadata.The Adaptable Seismic Data Format (ASDF) is a new data format for seismology that solves the problems with existing seismic data formats and integrates full provenance into the definition. ASDF is a self-describing format that features parallel I/O using the parallel HDF5 library. This makes it a great choice for use on HPC clusters. The format integrates the standards QuakeML for seismic sources and StationXML for receivers. ASDF is suitable for storing earthquake data sets, where all waveforms for a single earthquake are stored in a one file, ambient noise cross-correlations, and adjoint sources. The format comes with a user-friendly Python reader and writer that gives seismologists access to a full set of Python tools for seismology. There is also a faster C/Fortran library for integrating ASDF into performance-focused numerical wave solvers, such as SPECFEM3D_GLOBE. Finally, a GUI tool designed for visually exploring the format exists that provides a flexible interface for both research and educational applications. ASDF is a new seismic data format that offers seismologists high-performance parallel processing, organized and validated contents, and full provenance tracking for automated seismological workflows.

  16. A global renewable mix with proven technologies and common materials

    International Nuclear Information System (INIS)

    García-Olivares, Antonio; Ballabrera-Poy, Joaquim; García-Ladona, Emili; Turiel, Antonio

    2012-01-01

    A global alternative mix to fossil fuels is proposed, based on proven renewable energy technologies that do not use scarce materials. The mix consists of a combination of onshore and offshore wind turbines, concentrating solar power stations, hydroelectricity and wave power devices attached to the offshore turbines. Solar photovoltaic power could contribute to the mix if its dependence on scarce materials is solved. The most adequate deployment areas for the power stations are studied, as well as the required space. Material requirements are studied for the generation, power transport and for some future transport systems. The order of magnitude of copper, aluminium, neodymium, lithium, nickel, zinc and platinum that may be required for the proposed solution is obtained and compared with available reserves. Overall, the proposed global alternative to fossil fuels seems technically feasible. However, lithium, nickel and platinum could become limiting materials for future vehicles fleet if no global recycling systems were implemented and rechargeable zinc–air batteries would not be developed; 60% of the current copper reserves would have to be employed in the implementation of the proposed solution. Altogether, they may become a long-term physical constraint, preventing the continuation of the usual exponential growth of energy consumption. - Highlights: ▶ A global renewable mix with proven energy technologies and common materials. ▶ Wind turbines, concentrating solar power, hydroelectricity and wave attenuators. ▶ Mix technically feasible. Lithium, nickel and platinum may limit vehicles fleet. ▶ Sixty per cent of copper reserves used in the mix and in societal electrification. ▶ Power cannot growth exponentially. Future “spaceship economy” scenario expected.

  17. Isotopic approach to the provenance study of artifacts

    International Nuclear Information System (INIS)

    Mabuchi, Hisao

    1994-01-01

    Isotopic abundance ratios, which are proved to be generally constant, are known to vary, for certain elements, from one place to another. Light elements, such as hydrogen, lithium, boron, carbon, nitrogen, oxygen and sulfur, show measurable variations of their isotope ratios due to isotopic fractionation which takes place during geochemical or biochemical processes. Isotope ratios of strontium and lead vary due to the decay of long-lived radioactive nuclides 87 Rb and 238 U- 235 U- 232 Th, respectively. Such isotopic anomalies can be applicable to provenance studies of archaeological objects. Thus, 13 C/ 12 C, 18 O/ 16 O, or 87 Sr/ 86 Sr were used to examine the authenticity of Greek marble statues. Also, lead isotope ratios have been used since mid-1960s extensively for provenance studies of glasses and bronzes of different civilizations. As an example, the author presents a series of his own works on lead isotope ratios applied to ancient Japanese bronzes, which are summarized as follows. 1) It was generally observed that lead isotope ratios reflect difference in culture to which bronzes belong. 2) Mirrors in the Western Han period (206 B.C. - A.D.8) are clearly distinguished by lead isotope ratios from those made after the mid-Eastern Han period (ca.A.D.150 - 300). 3) Korean mirrors and weapons excavated from the Yayoi sites contain lead of easily recognizable Mississippi Valley type. 4) Bronze objects made in Japan (imitative Han style mirrors, Dotaku, imitative weapons, arrowheads etc.) in the Yayoi and Kofun periods are classified by lead isotope ratios in the following order: the Korean mirror type to the Western Han mirror type in the Yayoi period and the mid- to post- Han mirror type in the Kofun period. 5) Indigenous Japanese lead seems to have been used after the mid-7th century. (J.P.N.)

  18. Species choice, provenance and species trials among native Brazilian species

    Energy Technology Data Exchange (ETDEWEB)

    Drumond, M A

    1982-01-01

    Six papers from the conference are presented. Drumond, M.A., Potential of species native to the semi-arid tropics, 766-781, (Refs. 18), reports on Anadenanthera macrocarpa, Mimosa species, Schinopsis brasiliensis, Spondias tuberosa, Ziziphus joazeiro, Cnidoscolus phyllacanthus, Bursera leptophleos (leptophloeos), Tabebuia impetiginosa, Astronium urundeuva, and Mimosa caesalpinia. Monteiro, R.F.R., Speltz, R.M., Gurgel, J.T. do A.; Silvicultural performance of 24 provenances of Araucaria angustifolia in Parana, 814-824, (Refs. 8). Pires, C.L. da S., Kalil Filho, A.N., Rosa, P.R.F. da, Parente, P.R., Zanatto, A.C.S.; Provenance trials of Cordia alliodora in the State of Sao Paulo, 988-995, (Refs. 9). Nogueira, J.C.B., Siqueira, A.C.M.F., Garrido, M.A.O., Gurgel Garrido, L.M. do A., Rosa, P.R.F., Moraes, J.L. de, Zandarin, M.A., Gurgel Filho, O.A., Trials of some native species in various regions of the State of Sao Paulo, 1051-1063, (Refs. 9) describes Centrolobium tomentosum, Peltophorum dubium, Tabebuia vellosoi, Cariniana legalis, and Balfourodendron riedelianum. Batista, M.P., Borges, J.F., Franco, M.A.B.; Early growth of a native species in comparison with exotics in northeastern Para, Brazil, 1105-1110, (Refs. 3). Jacaranda copaia is compared with Gmelina arborea, Pinus caribaea various hondurensis, Eucalyptus deglupta, and E. urophylla. Lima, P.C.F., Souza, S.M. de, Drumond, M.A.; Trials of native forest species at Petrolina, Pernambuco, 1139-1148, (Refs. 8), deals with Anadenanthera macrocarpa, Piptadenia obliqua, Pithecellobium foliolosum, Astronium urundeuva, Schinopsis brasiliensis, Cassia excelsa, Caesalpinia pyramidalis, Parkia platycephala, Pseudobombax simplicifolium, Tabebuia impetiginosa, Caesalpinia ferrea, and Aspidosperma pyrifolium. 18 references.

  19. Study of elementary composition of Melissa oficinalis from different provenances by neutron activation analysis

    International Nuclear Information System (INIS)

    Santos, Allan; Sussa, Fábio V.; Silva, Paulo S.C.

    2017-01-01

    The elemental composition of medicinal plants depends on a number of factors, including soil, irrigation water, climate, among others. All these factors play a fundamental role in all the biological and metabolic systems of plants inducing greater or lesser production of secondary metabolites, which are the active principles of plant drugs. This work aims to determine the elemental concentrations of samples of Melissa officinalis L correlated this composition with the locations of provenance of these samples. Additionally, some physical-chemical characteristics were evaluated to verify the degree of agreement between the material that can be obtained in the trade and the limits established by the Brazilian Farmacopeia. The results indicated that practically all the evaluated aspects are in disagreement with the norms, that the elemental composition varies according to the origin of the plant and that this can be used as indicator of the origin of the samples

  20. New ways to work.

    Science.gov (United States)

    2003-06-01

    Flexible working, work-life balance, family friendliness; all are now familiar terms in today's NHS, and employers, managers and leaders are expected to be forging ahead in improving the working lives for all staff. If you are looking for new ideas to help tackle the challenge, you should try the New Ways to Work website.

  1. Rhodotron: the third way

    International Nuclear Information System (INIS)

    Langley-Danysz, P.

    1992-01-01

    A CEA Saclay laboratory proposes a third way for the food processing (compared with gamma radiations and accelerated electrons): X radiations with the Rhodotron accelerator. X radiations are obtained by conversion of accelerated electrons on a metallic target. The electron acceleration in rosace let hope for a profitable conversion

  2. This Way Brouwn

    DEFF Research Database (Denmark)

    van der Meijden, Peter Alexander

    2013-01-01

    Artiklen udforsker den surinamsk/hollandske kunstner Stanley Brouwns værk "This Way Brouwn" (1962-nu) som en hybrid mellem arkiv og performance. Mere specifikt stiller artiklen, primært igennem Jacques Derridas essay "Archive Fever" skarpt på arkivets og performancekunstens tidsmæssige aspekt, fo...

  3. Provenance and sediment fluxes in the Irrawaddy (Ayeyarwadi) River

    Science.gov (United States)

    Garzanti, Eduardo; Wang, Jiangang; Vezzoli, Giovanni; Limonta, Mara

    2016-04-01

    The Irrawaddy (Ayeyarwadi) River, still a natural system scarcely affected by human activities, ranks among the five major rivers in the world for its annual suspended load, estimated as 364±60 million tons (Robinson et al., 2007). Sourced in Himalayan glaciers southeast of the eastern Himalayan syntaxis at ca. 28°N, the Irrawaddy originates from the confluence of the Nmai and Mali Rivers, flows southward to receive its major Chindwin tributary in the middle of the central Myanmar Basin, and eventually empties through a nine-armed delta into the Andaman Sea. The compositional fingerprint of bedload sand in the upper Irrawaddy is characterized by common feldspars, medium/high rank of metamorphic rock fragments and high heavy-mineral concentration, reflecting provenance from mid-crustal granitoids, amphibolite-facies and subordinately greenschist-facies rocks widely exposed in the Mogok Belt and Lohit Plutonic Complex. Minor volcanic/metavolcanic and serpentinite grains indicate additional supply from volcanic-arc remnants and the Neotethyan ophiolitic suture. Sand of the Chindwin River has much higher quartz/feldspar ratio and much lower metamorphic indices and heavy-mineral concentration, reflecting provenance mainly from upper crustal sedimentary and very low-grade metasedimentary rocks exposed in the Indo-Burman Ranges (Garzanti et al., 2013). Feldspatho-litho-quartzose to litho-feldspatho-quartzose composition in the lower Irrawaddy is intermediate between that of Chindwin and upper Irrawaddy sand. The slight progressive downstream increase in volcanic rock fragments and chert, and decrease in metamorphic indices, point to additional local supply from volcanic and sedimentary cover rocks. U-Pb age spectra of detrital zircons are characterized by a major cluster between 30 and 150 Ma, corresponding to the long-lasting magmatic activity of the Western Myanmar Arc (Wang et al., 2014), with other clusters at 500-600 Ma and 800-1200 Ma, and a few ages between 1

  4. Isotopic evidences for provenances of east asian dust

    International Nuclear Information System (INIS)

    Yang Jiedong; Chen Jun; Li Gaojun; Ji Junfeng; Rao Wenbo

    2007-01-01

    Based on systematical investigations on Nd-Sr isotopes of both the <75μm and <5μm silicate fractions of loess, sand, river and lacustrine sediment samples for ten major deserts, gobi, the Loess Plateau, and the northeast part of the Tibetan-Qinghai Plateau, the following results are obtained. (1) Three isotopic regions of Chinese deserts are identified. Region A (Aland A2), which is the deserts on the northern boundary of China with the highest ε Nd (0)>-7.0. Region B, which is the deserts on the northern margin of Tibetan Plateau with ε Nd (0) ranges form -11.9 to -7.4. Region C, which is the deserts on the Ordos Plateau with the lowest ε nd (0)<-11.5. The distribution of the three isotopic regions is controlled by the tectonic setting in North China. (2) The reliable isotope ranges of the Loess Plateau are 87 Sr/ 86 Sr from 0.71784 to 0.71944, ε Nd (0) from -9.2 to -11.3, which fall in Region B of the Qaiham Desert, Badain Jaran Desert and Tengger Desert. This indicates that the possibility of the Gurbantunggut Desert, Hunlun Buir sandy land, Onqin Daga sandy land, Horqin sandy land, the Hobq Desert and Mu Us Desert, as provenances for the loess are excluded. The isotopic range of the northeast part of the Tibetan-Qinghai Plateau coincides with those of the Badain Jaran Desert and Tengger Desert, and loess in the Loess Plateau, suggesting that the predominant source area of the Loess Plateau is most likely to be the northeast part of the Tibetan-Qinghai Plateau, and the Qaidam Desert, Badain Jaran Desert and Tengger Desert are middle transport stations of loess materials. (3) The comparison with isotopic data of dust extracted from snow deposits at Greenland and sediments of North Pacific confirms the Badain Jaran Desert, Tengger Desert and the Tibetan-Qinghai Plateau to be main source. (4) The analyzed results for dust samples in Beijing region demonstrate that aeolian dust in normal time in 2006 is mostly derived from mixing of Region B and bed rock soil

  5. Building the green way.

    Science.gov (United States)

    Lockwood, Charles

    2006-06-01

    Just five or six years ago, the term "green building" evoked visions of barefoot, tie-dyed, granola-munching denizens. There's been a large shift in perception. Of course, green buildings are still known for conserving natural resources by, for example, minimizing on-site grading, using alternative materials, and recycling construction waste. But people now see the financial advantages as well. Well-designed green buildings yield lower utility costs, greater employee productivity, less absenteeism, and stronger attraction and retention of workers than standard buildings do. Green materials, mechanical systems, and furnishings have become more widely available and considerably less expensive than they used to be-often cheaper than their standard counterparts. So building green is no longer a pricey experiment; just about any company can do it on a standard budget by following the ten rules outlined by the author. Reliable building-rating systems like the U.S. Green Building Council's rigorous Leadership in Energy and Environmental Design (LEED) program have done much to underscore the benefits of green construction. LEED evaluates buildings and awards points in several areas, such as water efficiency and indoor environmental quality. Other rating programs include the UK's BREEAM (Building Research Establishment's Environmental Assessment Method) and Australia's Green Star. Green construction is not simply getting more respect; it is rapidly becoming a necessity as corporations push it fully into the mainstream over the next five to ten years. In fact, the author says, the owners of standard buildings face massive obsolescence. To avoid this problem, they should carry out green renovations. Corporations no longer have an excuse for eschewing environmental and economic sustainability. They have at their disposal tools proven to lower overhead costs, improve productivity, and strengthen the bottom line.

  6. How the provenance of electronic health record data matters for research: a case example using system mapping.

    Science.gov (United States)

    Johnson, Karin E; Kamineni, Aruna; Fuller, Sharon; Olmstead, Danielle; Wernli, Karen J

    2014-01-01

    The use of electronic health records (EHRs) for research is proceeding rapidly, driven by computational power, analytical techniques, and policy. However, EHR-based research is limited by the complexity of EHR data and a lack of understanding about data provenance, meaning the context under which the data were collected. This paper presents system flow mapping as a method to help researchers more fully understand the provenance of their EHR data as it relates to local workflow. We provide two specific examples of how this method can improve data identification, documentation, and processing. EHRs store clinical and administrative data, often in unstructured fields. Each clinical system has a unique and dynamic workflow, as well as an EHR customized for local use. The EHR customization may be influenced by a broader context such as documentation required for billing. We present a case study with two examples of using system flow mapping to characterize EHR data for a local colorectal cancer screening process. System flow mapping demonstrated that information entered into the EHR during clinical practice required interpretation and transformation before it could be accurately applied to research. We illustrate how system flow mapping shaped our knowledge of the quality and completeness of data in two examples: (1) determining colonoscopy indication as recorded in the EHR, and (2) discovering a specific EHR form that captured family history. Researchers who do not consider data provenance risk compiling data that are systematically incomplete or incorrect. For example, researchers who are not familiar with the clinical workflow under which data were entered might miss or misunderstand patient information or procedure and diagnostic codes. Data provenance is a fundamental characteristic of research data from EHRs. Given the diversity of EHR platforms and system workflows, researchers need tools for evaluating and reporting data availability, quality, and

  7. Citation and Recognition of contributions using Semantic Provenance Knowledge Captured in the OPeNDAP Software Framework

    Science.gov (United States)

    West, P.; Michaelis, J.; Lebot, T.; McGuinness, D. L.; Fox, P. A.

    2014-12-01

    Providing proper citation and attribution for published data, derived data products, and the software tools used to generate them, has always been an important aspect of scientific research. However, It is often the case that this type of detailed citation and attribution is lacking. This is in part because it often requires manual markup since dynamic generation of this type of provenance information is not typically done by the tools used to access, manipulate, transform, and visualize data. In addition, the tools themselves lack the information needed to be properly cited themselves. The OPeNDAP Hyrax Software Framework is a tool that provides access to and the ability to constrain, manipulate, and transform, different types of data from different data formats, into a common format, the DAP (Data Access Protocol), in order to derive new data products. A user, or another software client, specifies an HTTP URL in order to access a particular piece of data, and appropriately transform it to suit a specific purpose of use. The resulting data products, however, do not contain any information about what data was used to create it, or the software process used to generate it, let alone information that would allow the proper citing and attribution to down stream researchers and tool developers. We will present our approach to provenance capture in Hyrax including a mechanism that can be used to report back to the hosting site any derived products, such as publications and reports, using the W3C PROV recommendation pingback service. We will demonstrate our utilization of Semantic Web and Web standards, the development of an information model that extends the PROV model for provenance capture, and the development of the pingback service. We will present our findings, as well as our practices for providing provenance information, visualization of the provenance information, and the development of pingback services, to better enable scientists and tool developers to be

  8. Provenance of Earth Science Datasets - How Deep Should One Go?

    Science.gov (United States)

    Ramapriyan, H.; Manipon, G. J. M.; Aulenbach, S.; Duggan, B.; Goldstein, J.; Hua, H.; Tan, D.; Tilmes, C.; Wilson, B. D.; Wolfe, R.; Zednik, S.

    2015-12-01

    For credibility of scientific research, transparency and reproducibility are essential. This fundamental tenet has been emphasized for centuries, and has been receiving increased attention in recent years. The Office of Management and Budget (2002) addressed reproducibility and other aspects of quality and utility of information from federal agencies. Specific guidelines from NASA (2002) are derived from the above. According to these guidelines, "NASA requires a higher standard of quality for information that is considered influential. Influential scientific, financial, or statistical information is defined as NASA information that, when disseminated, will have or does have clear and substantial impact on important public policies or important private sector decisions." For information to be compliant, "the information must be transparent and reproducible to the greatest possible extent." We present how the principles of transparency and reproducibility have been applied to NASA data supporting the Third National Climate Assessment (NCA3). The depth of trace needed of provenance of data used to derive conclusions in NCA3 depends on how the data were used (e.g., qualitatively or quantitatively). Given that the information is diligently maintained in the agency archives, it is possible to trace from a figure in the publication through the datasets, specific files, algorithm versions, instruments used for data collection, and satellites, as well as the individuals and organizations involved in each step. Such trace back permits transparency and reproducibility.

  9. Provenance of the K/T boundary layers

    International Nuclear Information System (INIS)

    Hildebrand, A.R.; Boynton, W.V.

    1988-01-01

    An array of chemical, physical and isotopic evidence indicates that an impact into oceanic crust terminated the Cretaceous Period. Approximately 1500 cu km of debris, dispersed by the impact fireball, fell out globally in marine and nonmarine environments producing a 2 to 4 mm thick layer (fireball layer). In North American locales, the fireball layer overlies a 15 to 25 mm thick layer of similar but distinct composition. This 15 to 25 mm layer (ejecta layer) may represent approximately 1000 cu km of lower energy ejecta from a nearby impact site. Isotopic and chemical evidence supports a mantle provenance for the bulk of the layers. The extraordinary REE pattern of the boundary clays was modelled as a mixture of oceanic crust, mantle, and approximately 10 percent continental material. The results are presented. If the siderophiles of the ejecta layer were derived solely from the mantle, a test may be available to see if the siderophile element anomaly of the fireball layer had an extraterrestrial origin. Radiogenic Os-187 is depleted in the mantle relative to an undifferentiated chondritic source. Os-187/Os-186 ratios of 1.049 and 1.108 were calculated for the ejecta and fireball layers, respectively

  10. LQCD workflow execution framework: Models, provenance and fault-tolerance

    International Nuclear Information System (INIS)

    Piccoli, Luciano; Simone, James N; Kowalkowlski, James B; Dubey, Abhishek

    2010-01-01

    Large computing clusters used for scientific processing suffer from systemic failures when operated over long continuous periods for executing workflows. Diagnosing job problems and faults leading to eventual failures in this complex environment is difficult, specifically when the success of an entire workflow might be affected by a single job failure. In this paper, we introduce a model-based, hierarchical, reliable execution framework that encompass workflow specification, data provenance, execution tracking and online monitoring of each workflow task, also referred to as participants. The sequence of participants is described in an abstract parameterized view, which is translated into a concrete data dependency based sequence of participants with defined arguments. As participants belonging to a workflow are mapped onto machines and executed, periodic and on-demand monitoring of vital health parameters on allocated nodes is enabled according to pre-specified rules. These rules specify conditions that must be true pre-execution, during execution and post-execution. Monitoring information for each participant is propagated upwards through the reflex and healing architecture, which consists of a hierarchical network of decentralized fault management entities, called reflex engines. They are instantiated as state machines or timed automatons that change state and initiate reflexive mitigation action(s) upon occurrence of certain faults. We describe how this cluster reliability framework is combined with the workflow execution framework using formal rules and actions specified within a structure of first order predicate logic that enables a dynamic management design that reduces manual administrative workload, and increases cluster-productivity.

  11. Culture-proven bacterial keratitis in a Malaysian general hospital.

    Science.gov (United States)

    Hooi, S H; Hooi, S T

    2005-12-01

    One hundred patients (101 eyes) with culture-proven bacterial keratitis were treated in the Department of Ophthalmology, Hospital Sultanah Aminah, Johor Bahru, over a 4-year period. The majority of patients was male (63%), Malay (60%), from the Johor Bahru district (62%) and aged between 41 to 50 years (20%). The ocular predisposing factors were ocular trauma (41 eyes), ocular surface disease (28 eyes) and contact lens wear (26 eyes). The corneal ulcers were mainly large (50.5%), central (59.4%) and colonized by Gram-negative bacteria (78.1%). The most frequently isolated microorganisms were Pseudomonas aeruginosa (67 eyes), Staphylococcus aureus (12 eyes), Acinetobacter baumanii (6 eyes), Klebsiella pneumoniae (5 eyes), Corynebacterium sp. (3 eyes:) and Streptococcus pneumonliae (3 eyes). Twelve eyes (11.8%) had polymicrobial infection. A good visual outcome occurred in 52.5% of eyes analysed. Prognostic factors for visual outcome include presenting Snellen visual acuity, time to presentation after onset of ocular symptoms, ocular predisposing factor, corneal ulcer location and corneal ulcer size.

  12. Provenance-aware optimization of workload for distributed data production

    Science.gov (United States)

    Makatun, Dzmitry; Lauret, Jérôme; Rudová, Hana; Šumbera, Michal

    2017-10-01

    Distributed data processing in High Energy and Nuclear Physics (HENP) is a prominent example of big data analysis. Having petabytes of data being processed at tens of computational sites with thousands of CPUs, standard job scheduling approaches either do not address well the problem complexity or are dedicated to one specific aspect of the problem only (CPU, network or storage). Previously we have developed a new job scheduling approach dedicated to distributed data production - an essential part of data processing in HENP (preprocessing in big data terminology). In this contribution, we discuss the load balancing with multiple data sources and data replication, present recent improvements made to our planner and provide results of simulations which demonstrate the advantage against standard scheduling policies for the new use case. Multi-source or provenance is common in computing models of many applications whereas the data may be copied to several destinations. The initial input data set would hence be already partially replicated to multiple locations and the task of the scheduler is to maximize overall computational throughput considering possible data movements and CPU allocation. The studies have shown that our approach can provide a significant gain in overall computational performance in a wide scope of simulations considering realistic size of computational Grid and various input data distribution.

  13. Experimental evaluation of job provenance in ATLAS environment

    International Nuclear Information System (INIS)

    Krenek, A; Sitera, J; Chudoba, J; Dvorak, F; Filipovic, J; KmunIcek, J; Matyska, L; Mulas, M; Ruda, M; Sustr, Z; Campana, S; Molinari, E; Rebatto, D

    2008-01-01

    Grid middleware stacks, including gLite, matured into the state of being able to process up to millions of jobs per day. Logging and Bookkeeping, the gLite job-tracking service, keeps pace with this rate; however, it is not designed to provide a long-term archive of information on executed jobs. ATLAS - representative of a large user community - addresses this issue with its own job catalogue (ProdDB). Development of such a customized service, not easily reusable, took considerable effort which is not affordable by smaller communities. On the contrary, Job Provenance (JP), a generic gLite service designed for long-term archiving of information on executed jobs focusing on scalability, extensibility, uniform data view, and configurability, allows more specialized catalogues to be easily built. We present the first results of an experimental JP deployment for the ATLAS production infrastructure where a JP installation was fed with a part of ATLAS jobs, and also stress tested with real production data. The main outcome of this work is a demonstration that JP can complement large-scale application-specific job catalogue services, while serving a similar purpose where there are none available

  14. Descartes Mountains and Cayley Plains - Composition and provenance

    Science.gov (United States)

    Drake, M. J.; Taylor, G. J.; Goles, G. G.

    1974-01-01

    Trace element compositions of petrographically characterized 2-4 mm lithic fragments from Apollo 16 soil samples are used to calculate initial REE concentrations in liquids in equilibrium with lunar anorthosites and to discuss the provenance of the Cayley Formation. Lithic fragments may be subdivided into four groups: (1) ANT rocks, (2) K- and SiO2-rich mesostasis-bearing rocks, (3) poikiloblastic rocks, and (4) (spinel) troctolites. Model liquids in equilibrium with essentially monominerallic anorthosites have initial REE concentrations 5-8 times those of chondrites. The REE contents of K- and SiO2-rich mesostasis-bearing rocks and poikiloblastic rocks are dominated by the mesostasis phases. ANT rocks appear to be more abundant in the Descartes Mountains, while poikiloblastic rocks appear to be more abundant in the Cayley Plains. Poikiloblastic rocks have intermediate to high LIL-element concentrations yet the low gamma-ray activity of Mare Orientale implies low LIL-element concentrations. Consequently, it is unlikely that the Cayley Formation is Orientale ejecta. A local origin as ejecta from smaller impacts is a more plausible model for the deposition of the Cayley Formation.

  15. Ways of seeing evaluation

    OpenAIRE

    Bryant, W; Wilson, L; Lawson, J

    2011-01-01

    Copyright @ 2011 Brunel University This report summarises the evaluation of Ways of Seeing, a community arts project funded by the Heritage Lottery Fund and hosted by the Lightbox, Woking, Surrey from 2008-11. The people involved have had remarkable experiences, choosing how to take part in each stage of preparations for a major public art exhibition. All those involved had disabilities, primarily arising from mental health issues but also including physical disabilities. The project was s...

  16. Teachers’ way of reflecting

    DEFF Research Database (Denmark)

    Lund, Lea

    2016-01-01

    This paper contributes to insights on teachers’ thinking and practice by building partly on the large amount of prior research in the field of continuing professional development (in line with ISATT), and partly on examples from an empirical small-scale study executed in Denmark. The purpose of t......’ reflections on practice. Based on this model, the paper provides a proposal regarding how to work with teachers’ professional development and learning processes. Educational implications and future research directions are discussed.......This paper contributes to insights on teachers’ thinking and practice by building partly on the large amount of prior research in the field of continuing professional development (in line with ISATT), and partly on examples from an empirical small-scale study executed in Denmark. The purpose...... of the Danish study was to investigate and understand teachers’ classroom experiences using Fenstermacher’s approach to develop a practical argument, as these classroom experiences are regarded as a potential source of learning for teachers. A three-level scale model from the study describes the teach-ers...

  17. Provenance-Based Debugging and Drill-Down in Data-Oriented Workflows

    KAUST Repository

    Ikeda, Robert

    2012-04-01

    Panda (for Provenance and Data) is a system that supports the creation and execution of data-oriented workflows, with automatic provenance generation and built-in provenance tracing operations. Workflows in Panda are arbitrary a cyclic graphs containing both relational (SQL) processing nodes and opaque processing nodes programmed in Python. For both types of nodes, Panda generates logical provenance - provenance information stored at the processing-node level - and uses the generated provenance to support record-level backward tracing and forward tracing operations. In our demonstration we use Panda to integrate, process, and analyze actual education data from multiple sources. We specifically demonstrate how Panda\\'s provenance generation and tracing capabilities can be very useful for workflow debugging, and for drilling down on specific results of interest. © 2012 IEEE.

  18. High Throughput Petrochronology and Sedimentary Provenance Analysis by Automated Phase Mapping and LAICPMS

    Science.gov (United States)

    Vermeesch, Pieter; Rittner, Martin; Petrou, Ethan; Omma, Jenny; Mattinson, Chris; Garzanti, Eduardo

    2017-11-01

    The first step in most geochronological studies is to extract dateable minerals from the host rock, which is time consuming, removes textural context, and increases the chance for sample cross contamination. We here present a new method to rapidly perform in situ analyses by coupling a fast scanning electron microscope (SEM) with Energy Dispersive X-ray Spectrometer (EDS) to a Laser Ablation Inductively Coupled Plasma Mass Spectrometer (LAICPMS) instrument. Given a polished hand specimen, a petrographic thin section, or a grain mount, Automated Phase Mapping (APM) by SEM/EDS produces chemical and mineralogical maps from which the X-Y coordinates of the datable minerals are extracted. These coordinates are subsequently passed on to the laser ablation system for isotopic analysis. We apply the APM + LAICPMS method to three igneous, metamorphic, and sedimentary case studies. In the first case study, a polished slab of granite from Guernsey was scanned for zircon, producing a 609 ± 8 Ma weighted mean age. The second case study investigates a paragneiss from an ultra high pressure terrane in the north Qaidam terrane (Qinghai, China). One hundred seven small (25 µm) metamorphic zircons were analyzed by LAICPMS to confirm a 419 ± 4 Ma age of peak metamorphism. The third and final case study uses APM + LAICPMS to generate a large provenance data set and trace the provenance of 25 modern sediments from Angola, documenting longshore drift of Orange River sediments over a distance of 1,500 km. These examples demonstrate that APM + LAICPMS is an efficient and cost effective way to improve the quantity and quality of geochronological data.

  19. The Milky Way Skeleton

    Science.gov (United States)

    Zucker, Catherine; Battersby, Cara; Goodman, Alyssa A.

    2015-01-01

    Recently, Goodman et al. (2014) argued that a very long, very thin infrared dark cloud 'Nessie' lies directly in the Galactic mid-plane and runs along the Scutum-Centaurus arm in position-position-velocity space as traced by low density CO and high density NH3 gas. Nessie was presented as the first 'bone' of the Milky Way, an extraordinarily long, thin, high contrast filament that can be used to map our galaxy's 'skeleton.' We present the first evidence of additional 'bones' in the Milky Way Galaxy, arguing that Nessie is not a curiosity but one of many filaments that could potentially trace galactic structure. Our ten bone candidates are all long, filamentary, mid-infrared extinction features which lie parallel to, and no more than twenty parsecs from, the physical Galactic mid-plane. We use CO, N2H+, and NH3 radial velocity data to establish the location of the candidates in position-velocity space. Of the ten filaments, three candidates have a projected aspect ratio of >50:1 and run along, or extremely close to, the Scutum-Centaurus arm in position-velocity space. Evidence suggests that these three candidates are Nessie-like features which mark the location of the spiral arms in both physical space and position-velocity space. Other candidates could be spurs, feathers, or interarm clouds associated with the Milky Way's galactic structure. As molecular spectral-line and extinction maps cover more of the sky at increasing resolution and sensitivity, we hope to find more bones in future studies, to ultimately create a global-fit to the Galaxy's spiral arms by piecing together individual skeletal features. This work is supported in part by the NSF REU and DOD ASSURE programs under NSF grant no. 1262851 and by the Smithsonian Institution.

  20. Provenance based data integrity checking and verification in cloud environments.

    Science.gov (United States)

    Imran, Muhammad; Hlavacs, Helmut; Haq, Inam Ul; Jan, Bilal; Khan, Fakhri Alam; Ahmad, Awais

    2017-01-01

    Cloud computing is a recent tendency in IT that moves computing and data away from desktop and hand-held devices into large scale processing hubs and data centers respectively. It has been proposed as an effective solution for data outsourcing and on demand computing to control the rising cost of IT setups and management in enterprises. However, with Cloud platforms user's data is moved into remotely located storages such that users lose control over their data. This unique feature of the Cloud is facing many security and privacy challenges which need to be clearly understood and resolved. One of the important concerns that needs to be addressed is to provide the proof of data integrity, i.e., correctness of the user's data stored in the Cloud storage. The data in Clouds is physically not accessible to the users. Therefore, a mechanism is required where users can check if the integrity of their valuable data is maintained or compromised. For this purpose some methods are proposed like mirroring, checksumming and using third party auditors amongst others. However, these methods use extra storage space by maintaining multiple copies of data or the presence of a third party verifier is required. In this paper, we address the problem of proving data integrity in Cloud computing by proposing a scheme through which users are able to check the integrity of their data stored in Clouds. In addition, users can track the violation of data integrity if occurred. For this purpose, we utilize a relatively new concept in the Cloud computing called "Data Provenance". Our scheme is capable to reduce the need of any third party services, additional hardware support and the replication of data items on client side for integrity checking.

  1. Provenance based data integrity checking and verification in cloud environments.

    Directory of Open Access Journals (Sweden)

    Muhammad Imran

    Full Text Available Cloud computing is a recent tendency in IT that moves computing and data away from desktop and hand-held devices into large scale processing hubs and data centers respectively. It has been proposed as an effective solution for data outsourcing and on demand computing to control the rising cost of IT setups and management in enterprises. However, with Cloud platforms user's data is moved into remotely located storages such that users lose control over their data. This unique feature of the Cloud is facing many security and privacy challenges which need to be clearly understood and resolved. One of the important concerns that needs to be addressed is to provide the proof of data integrity, i.e., correctness of the user's data stored in the Cloud storage. The data in Clouds is physically not accessible to the users. Therefore, a mechanism is required where users can check if the integrity of their valuable data is maintained or compromised. For this purpose some methods are proposed like mirroring, checksumming and using third party auditors amongst others. However, these methods use extra storage space by maintaining multiple copies of data or the presence of a third party verifier is required. In this paper, we address the problem of proving data integrity in Cloud computing by proposing a scheme through which users are able to check the integrity of their data stored in Clouds. In addition, users can track the violation of data integrity if occurred. For this purpose, we utilize a relatively new concept in the Cloud computing called "Data Provenance". Our scheme is capable to reduce the need of any third party services, additional hardware support and the replication of data items on client side for integrity checking.

  2. Holocene Evolution and Sediment Provenance of Horn Island, Mississippi, USA

    Science.gov (United States)

    Schulze, N.; Wallace, D. J.; Miner, M. D.

    2017-12-01

    As one of the most stable islands in the Mississippi-Alabama barrier island chain, Horn Island provides critical habitat, plays an important role in regulating estuarine conditions in the Mississippi Sound, and helps to attenuate wave energy and storm surge for the mainland. The provenance of sediments comprising Horn Island is largely unknown and has implications for mode of island genesis and evolution. The existing literature proposes that island chain formation was initiated by bar emergence from a subaqueous spit that grew laterally westward from Dauphin Island in the east. Decelerating sea level rise 4,000 to 5,000 years ago facilitated island formation. This proposed mode of formation is supported by a lone radiocarbon date from lagoonal sediments below Horn Island, suggesting the system formed after 4,615 ± 215 years BP. Rivers supplying suspended sediment include the Mississippi, Pascagoula, Mobile and Apalachicola, but the variable nature of their paths and sediment supply means that Horn Island has received differing amounts of sediment from these proximal rivers throughout the Holocene. To analyze the stratigraphy and sediment characteristics of Horn Island, we will utilize 24 vibracores (up to 6 meters in length) from offshore Horn Island that were obtained by the United States Geological Survey (USGS) and 9 onshore drill cores (up to 28 meters in length) from the Mississippi Department of Environmental Quality. High-resolution LiDAR data collected by the National Oceanic and Atmospheric Administration in 2010 will be used to describe modern geomorphic barrier environments. We will employ down-core x-ray diffraction and x-ray fluorescence analyses to identify mineralogical and chemical signatures that potentially correspond to unique signatures of the fluvial sources of proximal rivers. New radiocarbon ages will be used to constrain the timing of island formation and alterations in sediment supply. High-resolution shallow geophysical data will provide

  3. Congenital heart defects in molecularly proven Kabuki syndrome patients.

    Science.gov (United States)

    Digilio, Maria Cristina; Gnazzo, Maria; Lepri, Francesca; Dentici, Maria Lisa; Pisaneschi, Elisa; Baban, Anwar; Passarelli, Chiara; Capolino, Rossella; Angioni, Adriano; Novelli, Antonio; Marino, Bruno; Dallapiccola, Bruno

    2017-11-01

    The prevalence of congenital heart defects (CHD) in Kabuki syndrome ranges from 28% to 80%. Between January 2012 and December 2015, 28 patients had a molecularly proven diagnosis of Kabuki syndrome. Pathogenic variants in KMT2D (MLL2) were detected in 27 patients, and in KDM6A gene in one. CHD was diagnosed in 19/27 (70%) patients with KMT2D (MLL2) variant, while the single patient with KDM6A change had a normal heart. The anatomic types among patients with CHD included aortic coarctation (4/19 = 21%) alone or associated with an additional CHD, bicuspid aortic valve (4/19 = 21%) alone or associated with an additional CHD, perimembranous subaortic ventricular septal defect (3/19 = 16%), atrial septal defect ostium secundum type (3/19 = 16%), conotruncal heart defects (3/19 = 16%). Additional CHDs diagnosed in single patients included aortic dilatation with mitral anomaly and hypoplastic left heart syndrome. We also reviewed CHDs in patients with a molecular diagnosis of Kabuki syndrome reported in the literature. In conclusion, a CHD is detected in 70% of patients with KMT2D (MLL2) pathogenic variants, most commonly left-sided obstructive lesions, including multiple left-sided obstructions similar to those observed in the spectrum of the Shone complex, and septal defects. Clinical management of Kabuki syndrome should include echocardiogram at the time of diagnosis, with particular attention to left-sided obstructive lesions and mitral anomalies, and annual monitoring for aortic arch dilatation. © 2017 Wiley Periodicals, Inc.

  4. Epidemiology of biopsy-proven glomerulonephritis in Queensland adults.

    Science.gov (United States)

    Jegatheesan, Dev; Nath, Karthik; Reyaldeen, Reza; Sivasuthan, Goutham; John, George T; Francis, Leo; Rajmokan, Mohana; Ranganathan, Dwarakanathan

    2016-01-01

    There is a paucity of data pertaining to the incidence of biopsy-proven glomerulonephritis (GN) in Australia. This retrospective study aims to review the data from all adult native renal biopsies performed in the state of Queensland from 2002 to 2011--comparing results with centres from across the world. Pathology reports of 3697 adult native kidney biopsies were reviewed, of which 2048 had GN diagnoses. Age, gender, clinical indication and histopathology findings were compared. The average age at biopsy was 48 ± 17 years. Male preponderance was noted overall (∼60%), with lupus nephritis being the only individual GN with female predilection. The average rate of biopsy was 12.04 per hundred thousand people per year (php/yr). Nephrotic and nephritic syndromes comprised approximately 75% of all clinical indications that lead to GN diagnoses. IgA nephropathy (1.41 php/yr) was the most common primary GN followed by focal segmental glomerulosclerosis (1.02 php/yr) and crescentic GN (0.73 php/yr). Diabetic nephropathy (0.84 php/yr), lupus nephritis (0.69 php/yr) and amyloidosis (0.19 php/yr) were the most commonly identified secondary GN. IgA nephropathy is the predominant primary GN in Queensland, and nephrotic syndrome the most common indication for a renal biopsy. While crescentic GN incidence has significantly increased with time, focal segmental glomerulosclerosis incidence has not shown any trend. Incidence of GN overall appears to increase with age. The annual rate of biopsy in this study appears lower than previously published in an Australian population. © 2015 Asian Pacific Society of Nephrology.

  5. The Milky Way galaxy

    International Nuclear Information System (INIS)

    Woerden, H. van; Allen, R.J.; Burton, W.B.

    1985-01-01

    IAU Symposium 106, held at the Kapteyn Institute in Groningen, presents an overview of all major aspects of galactic astronomy. The vast subject is covered in 20 authoritative review papers and 22 invited papers, each with discussion, plus 81 shorter contributions. The book opens with 4 reviews by historians of science, outlining the history of galactic research. Part 2 deals with (i) galactic rotation, (ii) the large-scale distributions of matter, of both old and young stellar populations, and of the atomic, molecular and high-energy components of the interstellar medium, (iii) small-scale structure in the gas, (iv) the galactic nucleus, (v) the high-velocity clouds. Part 3 discusses the dynamics of the local group of Galaxies and of the Milky Way-Magellanic clouds system, the dynamical and chemical evolution of the Galaxy and of its disk and halo components and the formation of the Galaxy. The controversial subject of spiral structure and star formation is analyzed in several extensive reviews and lively discussions, featuring both observational and theoretical developments. Results of extragalactic research are blended with studies of our Galaxy throughout the book, and there is a separate comparison between Andromeda and Milky Way Galaxies. The Symposium featured the first maps produced by IRAS, and results from most major telescopes in a variety of wavebands. Many review papers present material not published elsewhere. The book closes with a lecture on life in the Galaxy and with an imaginative symposium summary. (orig.)

  6. Germination and early seedling growth of Pinus densata Mast. provenances

    Science.gov (United States)

    Yulan Xu; Nianhui Cai; Bin He; Ruili Zhang; Wei Zhao; Jianfeng Mao; Anan Duan; Yue Li; Keith Woeste

    2016-01-01

    We studied seed germination and early seedling growth of Pinus densata to explore the range of variability within the species and to inform afforestation practices. Phenotypes were evaluated at a forest tree nursery under conditions that support Pinus yunnanensis, one of the presumed parental species of P. densata...

  7. Understanding RTI in Mathematics: Proven Methods and Applications

    Science.gov (United States)

    Gersten, Russell, Ed.; Newman-Gonchar, Rebecca, Ed.

    2011-01-01

    Edited by National Math Panel veteran Russell Gersten with contributions by all of the country's leading researchers on RTI and math, this cutting-edge text blends the existing evidence base with practical guidelines for RTI implementation. Current and future RTI coordinators, curriculum developers, math specialists, and department heads will get…

  8. Personalized dementia care: proven effectiveness of psychosocial interventions in subgroups

    NARCIS (Netherlands)

    van Mierlo, L.D.; van der Roest, H.G.; Meiland, F.J.M.; Dröes, R.M.

    2010-01-01

    Many psychosocial intervention studies report effects in subgroups of people with dementia. Insight into the characteristics of these subgroups is important for care practice. This study reviews personal characteristics of people with dementia (living in the community or in an institution) that are

  9. New markers to identify the provenance of lapis lazuli: trace elements in pyrite by means of micro-PIXE

    Energy Technology Data Exchange (ETDEWEB)

    Re, A. [Istituto Nazionale di Fisica Nucleare (INFN), Sezione di Torino, Torino (Italy); Angelici, D. [Istituto Nazionale di Fisica Nucleare (INFN), Sezione di Torino, Torino (Italy); Universita di Torino, Dipartimento di Fisica, Torino (Italy); Universita di Torino, Dipartimento di Scienze della Terra, Torino (Italy); Lo Giudice, A. [Istituto Nazionale di Fisica Nucleare (INFN), Sezione di Torino, Torino (Italy); Universita di Torino, Dipartimento di Fisica, Torino (Italy); Maupas, E. [Universita di Torino, Dipartimento di Fisica, Torino (Italy); Giuntini, L.; Calusi, S.; Massi, M.; Mando, P.A. [Universita di Firenze, Dipartimento di Fisica, Sesto Fiorentino, Firenze (Italy); Istituto Nazionale di Fisica Nucleare (INFN), Sezione di Firenze, Sesto Fiorentino, Firenze (Italy); Gelli, N. [Istituto Nazionale di Fisica Nucleare (INFN), Sezione di Firenze, Sesto Fiorentino, Firenze (Italy); Borghi, A. [Universita di Torino, Dipartimento di Scienze della Terra, Torino (Italy); Gallo, L.M. [Museo Regionale di Scienze Naturali, Torino (Italy); Pratesi, G. [Universita di Firenze, Dipartimento di Scienze della Terra, Firenze (Italy); Museo di Storia Naturale, Firenze (Italy)

    2013-04-15

    Lapis lazuli has been used for glyptics and carving since the fifth millennium BC to produce jewels, amulets, seals, inlays, etc; the identification of the origin of the stone used for carving artworks may be valuable for reconstructing old trade routes. Since ancient lapis lazuli art objects are precious, only non-destructive techniques can be used to identify their provenance, and ion beam analysis (IBA) techniques allow us to characterise this stone in a fully non-invasive way. In addition, by using an ion microprobe, we have been able to focus the analysis on single crystals, as their typical dimensions may range from a few microns to hundreds of microns. Provenance markers, identified in previous IBA studies and already presented elsewhere, were based on the presence/absence of mineral phases, on the presence/quantity of trace elements inside a phase and on characteristic features of the luminescence spectra. In this work, a systematic study on pyrite crystals, a common accessory mineral in lapis lazuli, was carried out, following a multi-technique approach: optical microscopy and SEM-EDX to select crystals for successive trace element micro-PIXE measurements at two Italian facilities, the INFN Laboratori Nazionali di Legnaro and the INFN LABEC laboratory in Firenze. The results of this work allowed us to obtain new markers for lapis lazuli provenance identification. (orig.)

  10. Provenance study of a Bronze Age sword from Giurgiu

    International Nuclear Information System (INIS)

    Olariu, Agata; Badica, T.; Popescu, I. V.; Alexandrescu, E.

    2000-01-01

    This work is a compositional study of a bronze sword recently discovered near Giurgiu using the method of charged particles induced X ray emission (PIXE). The sword is of it Reutlingen type dated in the period Bronze Age D - Hallstatt A1, around 1200 B. C. The knowledge of its composition could give supplementary information about the provenance of this sword by comparing with other copper-based alloy objects from Bronze Age. To obtain the composition of the sword we have applied the method PIXE at the Tandem accelerator of IFIN-HH Magurele. We have extracted 3 samples from the body of the sword: one sample from the tip of the sword and 2 samples from the hilt. The samples have been flattened by a hammer and introduced in the irradiation chamber of the PIXE spectrometer. The targets have been irradiated by a current of protons of 3 MeV and about 5 nA from the linear accelerator Tandem of the department. The detection of the characteristic X ray emission have been done by a GeHP detector. The acquisition of the X ray spectra has been done online on a PC with a MCA interface Canberra. The detection system gave a 190 eV resolution at 5.9 keV. In the frame of the experimental conditions the following elements have been observed: As, Co, Cr, Cu, Fe, Ni, Pb, Sn and Zn. In the table we present the results of the PIXE analysis of the Bronze Age sword from Giurgiu. The instrumentation errors have been less than 15%. The values of the elemental concentrations have been normalized to 100%. In order to have a comparative study of composition we considered also the composition of 7 swords of the same type and from the same period from regions from the south of Danube in Bulgaria, and 6 copper-based alloy objects from Spalnaca deposit, in Transylvania, dated also Bronze Age. The sword from Giurgiu has a composition closer to the Bulgarian swords for the elements: As, Co, Cu, Ni, Sn. The ratios Sn/Cu versus As/Cu for the sword from Giurgiu, Spalnaca-Transylvania objects and

  11. Ways of Wandering

    DEFF Research Database (Denmark)

    Løvschal, Mette

    2013-01-01

    , where barrows were crucially dependent on roads and entailed their maintenance. In this way certain linear structures emerged and became a very dominant characteristic of the landscape. This paper proposes that this relationship between roads and barrows did not only exist as a well-defined large......Throughout prehistory and up to this present day, roads have played a crucial role in the exchange of knowledge, ideas as well as resources. In the Bronze Age they formed part of a general landscape discourse where the communication lines were materially manifested by the barrows and conversely...... and contextualization. The road as a basis for a bodily experience to understand and remember more complex phenomena attached to the barrow landscape such as myths, genealogical time, individual biographies etc. - And vice versa. The barrows served as collective material anchors and a fixation of the movement. Together...

  12. Ways of Infinity

    Directory of Open Access Journals (Sweden)

    Salanskis Jean-Michel

    2016-03-01

    Full Text Available The paper discusses analogies between the way in which infinity is understood and dealt with in mathematics and in Jewish tradition. It begins with recalling the classical debate about infinity in the field of the foundations of mathematics. Reading an important paper by A. Robinson, we come to the conclusion that mathematicians work “as if” infinite totalities existed. They do so by following the rules of their formalized discourse which, at least if it refers to anything at all, also refers to such totalities. The paper describes how, according to Jewish tradition, infinity is also not theological: instead of thinking that they own some infinite being or relate to it, observant Jews follow Jewish law.

  13. Efficient Ways to Learn Weather Radar Polarimetry

    Science.gov (United States)

    Cao, Qing; Yeary, M. B.; Zhang, Guifu

    2012-01-01

    The U.S. weather radar network is currently being upgraded with dual-polarization capability. Weather radar polarimetry is an interdisciplinary area of engineering and meteorology. This paper presents efficient ways to learn weather radar polarimetry through several basic and practical topics. These topics include: 1) hydrometeor scattering model…

  14. ‘One Way to Holland’

    DEFF Research Database (Denmark)

    Marselis, Randi; Schütze, Laura Maria

    2013-01-01

    museums, but is also relevant to ongoing collection practices. An important theme in relation to source communities is ownership and repatriation of cultural objects. Furthermore, working with source communities implies a two-way information process through which groups are given access to memory...

  15. Mediterranean Way of Competitiveness

    Directory of Open Access Journals (Sweden)

    Art Kovacic

    2010-12-01

    Full Text Available The Mediterranean area have a special concept of competitiveness topic. Normally is that region not so industrial and knowledge based oriented as a North Europe.That countries can't reach the same development level as the north one. Lisbon's and Goethenburg's strategies create the main framework of development programme. Mediterranean programme is such a case. European internal market has forced the EU countries to increase competitiveness. The economic prosperity of countries is associated with their ability to generate or attract economic activities which are able to increase income by performing well on themarket. Financial crisis in the EU has changed the look on the competitiveness research. Economy in the main countries has to find way of recovery. Former giants of the financial world have found themselves suddenly facing bankruptcy.Inevitably, the crisis is also having an effect on households and businesses - economic growth has slowed sharply and in some EU countries unemployment has begun to increase for the first time in several years. Form that perspective we have to find the right solution of European competitiveness.

  16. Proven Innovations and New Initiatives in Ground System Development

    Science.gov (United States)

    Gunn, Jody M.

    2006-01-01

    The state-of-the-practice for engineering and development of Ground Systems has evolved significantly over the past half decade. Missions that challenge ground system developers with significantly reduced budgets in spite of requirements for greater and previously unimagined functionality are now the norm. Making the right trades early in the mission lifecycle is one of the key factors to minimizing ground system costs. The Mission Operations Strategic Leadership Team at the Jet Propulsion Laboratory has spent the last year collecting and working through successes and failures in ground systems for application to future missions.

  17. Growth dynamics variation of different larch provenances under the mountain conditions in Poland

    Energy Technology Data Exchange (ETDEWEB)

    Kulej, M. [Univ. of Agriculture, Cracow (Poland). Section of Seed Production and Selection

    1995-12-31

    The results of 25-year investigations based on measurements and statistical analysis concerning the growth dynamics variation of larch provenances from the entire area of Poland are reported in this paper. This is the first larch provenance experiment in Poland under mountain conditions. The results obtained showed a significant variability among the provenances tested as regards the basic growth characters (height, d.b.h., growth index) at the age of 5, 8, 11, 15, 20 and 25 years. The larch from Klodzko and Proszkow turned out to be the best in respect of growth during the entire 25-years period. Decidedly bad were provenances from Marcule, Grojec, Rawa mazowiecka and Kroscienko. We cannot forecast the future growth of larch when trees are 5-years old since such prognosis may carry an error. However, on the basis of the results obtained it may be concluded that when trees are about 8 years old the stabilization of the position of individual provenances as regards growth takes place. The height growth curves for the individual provenances during the 25-years period (with exception of the provenance from Marcule) fall within the interval {+-} 0,5S from the compensated curve for the entire population studied. All larch provenances in the experiment had reached the height growth culmination. A greatest differentiation in respect of this character occurred in case of the provenances from Sudetes. 27 refs, 4 figs, 8 tabs

  18. Growth dynamics variation of different larch provenances under the mountain conditions in Poland

    Energy Technology Data Exchange (ETDEWEB)

    Kulej, M [Univ. of Agriculture, Cracow (Poland). Section of Seed Production and Selection

    1996-12-31

    The results of 25-year investigations based on measurements and statistical analysis concerning the growth dynamics variation of larch provenances from the entire area of Poland are reported in this paper. This is the first larch provenance experiment in Poland under mountain conditions. The results obtained showed a significant variability among the provenances tested as regards the basic growth characters (height, d.b.h., growth index) at the age of 5, 8, 11, 15, 20 and 25 years. The larch from Klodzko and Proszkow turned out to be the best in respect of growth during the entire 25-years period. Decidedly bad were provenances from Marcule, Grojec, Rawa mazowiecka and Kroscienko. We cannot forecast the future growth of larch when trees are 5-years old since such prognosis may carry an error. However, on the basis of the results obtained it may be concluded that when trees are about 8 years old the stabilization of the position of individual provenances as regards growth takes place. The height growth curves for the individual provenances during the 25-years period (with exception of the provenance from Marcule) fall within the interval {+-} 0,5S from the compensated curve for the entire population studied. All larch provenances in the experiment had reached the height growth culmination. A greatest differentiation in respect of this character occurred in case of the provenances from Sudetes. 27 refs, 4 figs, 8 tabs

  19. Partitioning sediment flux by provenance and tracing erosion patterns in Taiwan

    Science.gov (United States)

    Resentini, Alberto; Goren, Liran; Castelltort, Sébastien; Garzanti, Eduardo

    2017-07-01

    We critically evaluate the potential and limitations of an alternative way to calculate erosion rates based on petrographic and mineralogical fingerprints of fluvial sediments coupled with gauged sediment fluxes. Our approach allows us to apportion sediment loads to different lithological units, and consequently to discriminate erosion rates in different tectonic domains within each catchment. Our provenance data on modern Taiwanese sands indicate focused erosion in the Backbone Range and Tananao Complex of the retrowedge. Lower rates are inferred for the northern part of the island characterized by tectonic extension and for the western foothills in the prowedge. The principal factor of uncertainty affecting our estimates is the inevitably inaccurate evaluation of total sediment load, because only the suspended flux was measured. Another is the assumption that suspended load and bed load are derived from the same sources in fixed proportions. Additional errors are caused by the insufficiently precise definition of lithologically similar compositional end-members and by the temporal variability of sediment composition at the outlet of each catchment related to the spatial variability of erosional processes and triggering agents such as earthquakes, typhoons, and landslides. To evaluate the robustness of our findings, we applied a morphometric technique based on the stream-power model. The results obtained are broadly consistent, with local discrepancies ascribed to poorly constrained assumptions and choices of scaling parameters. Our local erosion estimates are consistent with GPS uplift rates measured on a decadal timescale and generally higher than basin-wide results inferred from cosmogenic-nuclide and thermochronology data.

  20. Is there a way?

    Directory of Open Access Journals (Sweden)

    Gabriel Jacobs

    1996-12-01

    Full Text Available I am currently a member of a working party set up in my own university to look into a range of IT matters, including learning technology, with the aim of producing a mediumterm institutional plan. At many of the meetings I attend, I hear about the urgency of focusing our CAL effort, but the conviction around the table is often tempered by lecturers' complaints that the off-the-shelf courseware they have tried either does not work well, or does not fit their particular needs, or both. So a suggestion is made: we should move in the direction of developing our own high-quality educational software tailored to our individual requirements. And since these requirements are very diverse over the whole campus, we should establish a Centre for Educational Technology, a Courseware Resources and Advice Unit, a Virtual Learning Development Laboratory, an Institute for Computer-Based Academic Practice . . . call it what you will. It should be staffed by experts who can advise departments and produce for them, or help them to produce, the exact software they require. It should be supported by a battalion of technicians, and should not only be equipped with white-hot multimedia but also backed by sufficient financial resources to ensure continuous upgrades so as to remain in a permanent state of state-of-the-art. The bank balance is not as healthy as it might be (whose is?, but the university management must nevertheless somehow be convinced of the necessity of spending money on the project.

  1. My Way in Archaeomagnetism

    Science.gov (United States)

    Kovacheva, Mary

    2014-05-01

    The talk describes the main hallmarks in my nearly half a century activity in the field of archaeomagnetism. Beginning from zero in my country in 1967, now the Bulgarian database is the longest data set comprising the three geomagnetic characteristics. I consider that the determination of the direction and absolute palaeointensity from one and the same material is the most valuable input data for the important geomagnetic field modeling. The recovered full geomagnetic vector gives much more opportunities for different geophysical applications. The maintenance, filling up and revision of the local database remained my principle obligation during my professional way. As a result taking the advantage of our country to have plenty of prehistoric single and multilevel sites the knowledge of the geomagnetic field behavior was prolonged deeply in the past going to 6000 yrs BC. The usage of 14C dates will be discussed describing possible difficulties which can be encountered. The specific multilevel prehistoric sites, found mostly in the Near East and the Balkans, with clear stratigraphy are particularly useful for archaeomagnetic discovery of the past geomagnetic field behavior. In this respect the well-timed activity of geophysical teams following the archaeological excavations is very important for the future elucidation of geomagnetic secular variations. The constant tight contact with the archaeological community of each country during this process is crucial. Examples of most valuable topics of interest for archaeologists will be given in the talk as synchronizations, magnetic characteristics related to the type of ceramics, archaeomagnetic dating etc. This is an important task because we should keep their interest towards our studies giving us the necessary materials. Some obtained questionable results will be discussed parallel with the progress in understanding the physical processes in baked clay and its magnetic mineralogy. Going deeply in diagnosis of the

  2. A comparative study of teaching clinical guideline for prevention of ventilator-associated pneumonia in two ways: face-to-face and workshop training on the knowledge and practice of nurses in the Intensive Care Unit

    Directory of Open Access Journals (Sweden)

    MAJID YAZDANI

    2015-04-01

    Full Text Available Introduction: Ventilator-associated pneumonia (VAP is one of the most popular nosocomial infections in the intensive care units and the nurse’s role in preventing it is very important. The aim of this study was to compare the effect of two methods of face to face training and work- shop clinical guidelines in prevention of VAP. Methods: In this experimental randomized clinical trial, the knowledge and practice of nurses in ICUs were studied in two groups: face to face training (35 nurses and workshops (40 nurses by using clinical guidelines in prevention of VAP in one of the hospitals of Shiraz University of Medical Sciences. The level of knowledge and practice in each group was assessed by selfreport questionnaire, knowledge questionnaire and also direct observation of practice, before and after training. Data were analyzed with descriptive statistics, paired t-test, independent t-test, McNemar test, Fisher’s exact, sign and Chi-square test, using SPSS 14. Results: This study demonstrated that both methods of face to face training and workshop were very effective. The incidence of inappropriate pressure of cuff in the tracheal tubes and tracheostomy tubes was significantly reduced after training (p=0.001. But, by comparison of these two methods and the relationship between the variables revealed that no significant difference was found between the two groups of face to face training and workshop. Conclusion: Training the nurses is highly effective in preventing VAP, particularly for appropriate cuff pressure, suctioning and disinfecting hands.

  3. "We should be able to bear our patients in our teaching in some way": theoretical perspectives on how nurse teachers manage their emotions to negotiate the split between education and caring practice.

    Science.gov (United States)

    Smith, Pam; Allan, T Helen

    2010-04-01

    In a classic paper, Menzies (1960) argued that nurses distanced themselves from patients in order to avoid direct engagement with them and as a means of managing their anxiety. Reflecting on the work 40years later Fabricius argued that in the move from hospital-based nurse education to universities, nurse educators had further entrenched this defence. It is from both these perspectives that we locate this paper to explore the position of nurse teachers today drawing on empirical data from a study set up to investigate who currently leads student nurse learning in the clinical areas and as a follow up to original research on the emotional labour of nursing (Smith, 1992). This paper presents findings from interviews with nurse teachers which are complemented by student nurse responses to a ward learning environment questionnaire, interviews with ward based nurses and documentary analysis. A major theme to emerge from the study was that there has been an uncoupling of education and practice as a consequence of the changes taking place in nurse education over the last two decades. This paper describes the range of emotions expressed as a consequence of this uncoupling such as increasing feelings of uncertainty over the nurse teacher's role in clinical practice and anxiety generated from working in a university system which appeared to devalue caring. The apparent impact of these feelings on nurse teachers was to reinforce the education/practice split and the projection of their anxiety onto students and practitioners. We suggest that nurse teachers and in particular the system in which they work need to recognise both split and projection so that they are able to bear their anxiety and manage it in their teaching.

  4. Wood structural differences between northern and southern beech provenances growing at a moderate site.

    Science.gov (United States)

    Eilmann, B; Sterck, F; Wegner, L; de Vries, S M G; von Arx, G; Mohren, G M J; den Ouden, J; Sass-Klaassen, U

    2014-08-01

    Planting provenances originating from southern to northern locations has been discussed as a strategy to speed up species migration and mitigate negative effects of climate change on forest stability and productivity. Especially for drought-susceptible species such as European beech (Fagus sylvatica L.), the introduction of drought-tolerant provenances from the south could be an option. Yet, beech has been found to respond plastically to environmental conditions, suggesting that the climate on the plantation site might be more important for tree growth than the genetic predisposition of potentially drought-adapted provenances. In this study, we compared the radial growth, wood-anatomical traits and leaf phenology of four beech provenances originating from southern (Bulgaria, France) and northern locations (Sweden, the Netherlands) and planted in a provenance trial in the Netherlands. The distribution of precipitation largely differs between the sites of origin. The northern provenances experience a maximum and the southern provenances experience a minimum of rainfall in summer. We compared tree productivity and the anatomy of the water-conducting system for the period from 2000 to 2010, including the drought year 2003. In addition, tree mortality and the timing of leaf unfolding in spring were analysed for the years 2001, 2007 and 2012. Comparison of these traits in the four beech provenances indicates the influence of genetic predisposition and local environmental factors on the performance of these provenances under moderate site conditions. Variation in radial growth was controlled by environment, although the growth level slightly differed due to genetic background. The Bulgarian provenance had an efficient water-conducting system which was moreover unaffected by the drought in 2003, pointing to a high ability of this provenance to cope well with dry conditions. In addition, the Bulgarian provenance showed up as most productive in terms of height and radial

  5. Querying Provenance Information: Basic Notions and an Example from Paleoclimate Reconstruction

    Science.gov (United States)

    Stodden, V.; Ludaescher, B.; Bocinsky, K.; Kintigh, K.; Kohler, T.; McPhillips, T.; Rush, J.

    2016-12-01

    Computational models are used to reconstruct and explain past environments and to predict likely future environments. For example, Bocinsky and Kohler have performed a 2,000-year reconstruction of the rain-fed maize agricultural niche in the US Southwest. The resulting academic publications not only contain traditional method descriptions, figures, etc. but also links to code and data for basic transparency and reproducibility. Examples include ResearchCompendia.org and the new project "Merging Science and Cyberinfrastructure Pathways: The Whole Tale." Provenance information provides a further critical element to understand a published study and to possibly extend or challenge the findings of the original authors. We present different notions and uses of provenance information using a computational archaeology example, e.g., the common use of "provenance for others" (for transparency and reproducibility), but also the more elusive but equally important use of "provenance for self". To this end, we distinguish prospective provenance (a.k.a. workflow) from retrospective provenance (a.k.a. data lineage) and show how combinations of both forms of provenance can be used to answer different kinds of important questions about a workflow and its execution. Since many workflows are developed using scripting or special purpose languages such as Python and R, we employ an approach and toolkit called YesWorkflow that brings provenance modeling, capture, and querying into the realm of scripting. YesWorkflow employs the basic W3C PROV standard, as well as the ProvONE extension for sharing and exchanging retrospective and prospective provenance information, respectively. Finally, we argue that the utility of provenance information should be maximized by developing different kinds provenance questions and queries during the early phases of computational workflow design and implementation.

  6. PRP: The Proven Solution for Cleaning Up Oil Spills

    Science.gov (United States)

    2006-01-01

    The basic technology behind PRP is thousands of microcapsules, tiny balls of beeswax with hollow centers. Water cannot penetrate the microcapsule s cell, but oil is absorbed right into the beeswax spheres as they float on the water s surface. This way, the contaminants, chemical compounds that originally come from crude oil such as fuels, motor oils, or petroleum hydrocarbons, are caught before they settle. PRP works well as a loose powder for cleaning up contaminants in lakes and other ecologically fragile areas. The powder can be spread over a contaminated body of water or soil, and it will absorb contaminants, contain them in isolation, and dispose of them safely. In water, it is important that PRP floats and keeps the oil on the surface, because, even if oil exposure is not immediately lethal, it can cause long-term harm if allowed to settle. Bottom-dwelling fish exposed to compounds released after oil spills may develop liver disease, in addition to reproductive and growth problems. This use of PRP is especially effective for environmental cleanup in sensitive areas like coral reefs and mangroves.

  7. Establishing Malware Attribution and Binary Provenance Using Multicompilation Techniques

    Energy Technology Data Exchange (ETDEWEB)

    Ramshaw, M. J. [Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)

    2017-07-28

    Malware is a serious problem for computer systems and costs businesses and customers billions of dollars a year in addition to compromising their private information. Detecting malware is particularly difficult because malware source code can be compiled in many different ways and generate many different digital signatures, which causes problems for most anti-malware programs that rely on static signature detection. Our project uses a convolutional neural network to identify malware programs but these require large amounts of data to be effective. Towards that end, we gather thousands of source code files from publicly available programming contest sites and compile them with several different compilers and flags. Building upon current research, we then transform these binary files into image representations and use them to train a long-term recurrent convolutional neural network that will eventually be used to identify how a malware binary was compiled. This information will include the compiler, version of the compiler and the options used in compilation, information which can be critical in determining where a malware program came from and even who authored it.

  8. Neutron activation analysis and provenance study of Tupiguarani Tradition pottery

    International Nuclear Information System (INIS)

    Faria, Gleikam Lopes de Oliveira; Menezes, Maria Angela de B.C.; Ribeiro, Loredana; Jacome, Camila

    2009-01-01

    Archaeology can fill the gap between ancient population and modern society elucidating the evidences found in archaeological sites. The fingerprint identified, that is the chemical composition of the ceramics, can help understanding this connection between the past and the present. The Tupiguarani Tradition vestiges found by archaeologists will be a way to know about the last two millennia of the Brazilian prehistory. This archaeological site is located along the coast of the Brazilian State of Espirito Santo, where the main evidence is a pretty ceramic with the occurrence of plastic and painted decoration. When the Portuguese settlers arrived in this region, in sixteenth century, several Missoes Jesuiticas (Jesuitical Missions) were built along the Brazilian coast. In spite of living within the Mission and been catechized, the Indians kept on producing traditional handicraft, as the decorated ceramic, however, they introduced European elements to the decoration. During the research expeditions made to the archaeological site of the Tupiguarani Tradition, many sherds were found. The identification and classification of ceramics through a multielemental chemistry analysis will be used to determine if they have the same origin. This paper shows the first elemental concentration results of the sherds collected from archaeological site determined at CDTN/CNEN, Belo Horizonte, Minas Gerais, using the TRIGA Mark I IPR-R1 nuclear reactor, applying the neutron activation technique, k 0 -method. (author)

  9. Competency-based teacher training: A systematic revision of a proven programme in medical didactics.

    Science.gov (United States)

    Griewatz, Jan; Simon, Melanie; Lammerding-Koeppel, Maria

    2017-01-01

    Objectives: Competency-based medical education (CBME) requires factual knowledge to be practically applied together with skills and attitudes. With the National Competence-Based Learning Objectives for Undergraduate Medical Education (NKLM) representing a strong official demand for competence-orientation, it is generally important to explicitly outline its characteristics and review its realisation in teacher trainings. Further requirements are given by the core competencies for medical teachers (KLM). As an example the MQ programme ("Medizindidaktische Qualifikation") in Baden-Wuerttemberg, a long established and well-accepted training, has been critically revised on this basis, concerning its suitability for the demands of CBME, its needs for adjustment and the efforts to be undertaken for its implementation. Methods: In a systematic quality management process the MQ curriculum and its organisational framing were analysed and further developed in a step-wise comprehensive approach, using the six-step cycle by Kern. The procedures included a thorough needs assessment (e.g. literature research, programme mapping), strategic decisions on structure and content, piloting and evaluation. During the process essential elements of project and change management were considered. Results: The experiences of the MQ example revealed helpful information for key factors to be considered in the pending change process any training provider will be confronted with. Guiding questions were developed related to the process phases. Our analyses showed persistent key points of proven value as stable foundation for change, as well as components needing special consideration to foster competence-oriented aims and transfer into practice: reflection, feedback, application-oriented methods and transparent competence development. These aspects have to be consciously perceived and experienced by participants. Taking this into account, we re-designed the course evidence-based. Besides

  10. Proven commercial reactor types: an introduction to their principal advantages and disadvantages

    International Nuclear Information System (INIS)

    Alesso, H.P.

    1981-01-01

    This study deals with the principal advantages and disadvantages of the five types of proven commercial reactors. A description of each class of commercial reactor (light water, gas-cooled, and heavy water) and their proven reactors is followed by a comparison of reactor types on the basis of technical merit, economics of operation, availability of technology, and associated political issues. (author)

  11. Performance of Australian provenances of Eucalyptus grandis and Eucalyptus saligna in Hawaii

    Science.gov (United States)

    Roger G. Skolmen

    1986-01-01

    Australian provenances of Eucalyptus grandis and E. saligna were compared at four locations on the island of Hawaii to seek seed sources better than those in current use which were introduced earlier from unrecorded locations in Australia. A broad range of latitude and elevation was represented among the provenances. At all four...

  12. An Inference-Based Framework to Manage Data Provenance in Geoscience Applications

    NARCIS (Netherlands)

    Huq, M.R.; Apers, Peter M.G.; Wombacher, Andreas

    2013-01-01

    Data provenance allows scientists to validate their model as well as to investigate the origin of an unexpected value. Furthermore, it can be used as a replication recipe for output data products. However, capturing provenance requires enormous effort by scientists in terms of time and training.

  13. Growth and Survival Variation among Scots Pine (Pinus sylvestris L. Provenances

    Directory of Open Access Journals (Sweden)

    Süleyman Gülcü

    2017-01-01

    Full Text Available Tree height, basal diameter, and survival were examined in thirteen-year-old provenance test established by 30 seed sources of Scots pine (Pinus sylvestris L. at two exotic sites of the species in Southern part of Turkey. Variations within provenance and among provenances and relations among the traits were estimated to compare Scots pine provenance and two other native species. Averages of tree height and basal diameter were 350 cm and 52.7 mm in Aydogmus site and 385 cm and 51.2 mm in Kemer site, respectively. There were large differences within and among provenances for the characters. Sites were similar (p>0.05 for the characters, while there were significant differences (p≤0.05 among provenances within site according to results of variance analysis (ANOVA. Scots pine provenances were higher and had more thickness than that of black pine (Pinus nigra Arnold and Taurus cedar (Cedrus libani A. Rich. which were natural species of the region. There were positive and significant (p<0.05 correlations between height and basal diameter in the species. Average survivals were 56% and 35% of the provenances in the sites. They were 71% and 11% in black pine and 53% in Taurus cedar for the sites respectively.

  14. Pharmacists' Perception of the Sale of Non-Clinically Proven Health ...

    African Journals Online (AJOL)

    Pharmacists' Perception of the Sale of Non-Clinically Proven Health Supplements in Penang, Malaysia. ... A total of 10.7 % respondents indicated that the sale of non-clinically proven products result in high profit. Only 25.0 % of the pharmacists ... Keywords: Perception, Health promotion, Urban poor, Health supplements.

  15. Data Provenance Inference in Logic Programming: Reducing Effort of Instance-driven Debugging

    NARCIS (Netherlands)

    Huq, M.R.; Mileo, Alessandra; Wombacher, Andreas

    Data provenance allows scientists in different domains validating their models and algorithms to find out anomalies and unexpected behaviors. In previous works, we described on-the-fly interpretation of (Python) scripts to build workflow provenance graph automatically and then infer fine-grained

  16. Total quality: A proven approach for magnet manufacture

    International Nuclear Information System (INIS)

    Owen, C.E.; Malone, K.A.

    1992-01-01

    The Westinghouse Magnet Systems Division (WMSD) was formed in late 1990 when the Superconducting Super Collider Laboratory (SSCL) awarded WMSD the Follower portion of the contract for manufacturing collider dipole magnets. The Division's small cadre of management start-up personnel moved into its office and manufacturing facility in Round Rock, Texas in August of 1991. In January 1992, WMSD won a second SSCL contract to design and build the High Energy Booster dipole magnets. These contracts presented a rare opportunity: the chance to start with a clean slate and to build, from the bottom up, a whole new product, with all its required manufacturing processes and all its management systems. This was the opportunity to open-quotes do it right the first time.close quotes With these two contracts, doing it right the first time is the only way that WMSD can succeed. By mid-1994, WMSD will start its delivery of collider dipole magnets for installation in the Super Collider tunnel. Each of the magnets, from the first delivery through the last, requires a calculated reliability of 99.99954 percent. This is six sigma performance the first time with little or no opportunity for trial and error, false starts, and continuous improvement. In late 1994, the SSCL will award the full production contract for collider dipole magnets to one of the two preproduction (or a combination of both) subcontractors, based on performance during the preproduction and low rate initial production phases. There will be no second chance in the quality, reliability, delivery and cost competition for this contract. This paper describes the Westinghouse's quality assurance program. This program has twelve conditions of excellance: customer orientation, participation, development, motivation, products and services, process and procedures, information, suppliers, culture, planning, communications, and accountability

  17. ProvenCare-Psoriasis: A disease management model to optimize care.

    Science.gov (United States)

    Gionfriddo, Michael R; Pulk, Rebecca A; Sahni, Dev R; Vijayanagar, Sonal G; Chronowski, Joseph J; Jones, Laney K; Evans, Michael A; Feldman, Steven R; Pride, Howard

    2018-03-15

    There are a variety of evidence-based treatments available for psoriasis. The transition of this evidence into practice is challenging. In this article, we describe the design of our disease management approach for Psoriasis (ProvenCare®) and present preliminary evidence of the effect of its implementation. In designing our approach, we identified three barriers to optimal care: 1) lack of a standardized and discrete disease activity measure within the electronic health record, 2) lack of a system-wide, standardized approach to care, and 3) non-uniform financial access to appropriate non-pharmacologic treatments. We implemented several solutions, which collectively form our approach. We standardized the documentation of clinical data such as body surface area (BSA), created a disease management algorithm for psoriasis, and aligned incentives to facilitate the implementation of the algorithm. This approach provides more coordinated, cost effective care for psoriasis, while being acceptable to key stakeholders. Future work will examine the effect of the implementation of our approach on important clinical and patient outcomes.

  18. Decontamination and provenance tracking. The key to acceptable recycle of nuclear materials

    International Nuclear Information System (INIS)

    Bradbury, D.; Elder, G.R.; Wood, C.J.

    2002-01-01

    Decommissioning of nuclear plants and components demands the proper management of the process, both for economic reasons and for retaining public confidence in the continued use of nuclear power. Surface decontamination has an important role to play in decommissioning. A new development, the EPRI DFDX process, produces secondary waste from decontamination in the form of powdered metal rather than ion exchange resin, thereby reducing the volume of secondary waste for storage and eventual disposal. The process has been patented and licensed and is due to be field-tested on a number of sites starting in 2002. Although the purpose of the process is to clean materials sufficiently to achieve unrestricted release, in practice there is some public unease at the prospect of formerly contaminated materials passing into unrestricted use. Greater public support for recycle can be achieved by recording the provenance of decontaminated materials and recycling them back into restricted uses in the nuclear industry. Because the materials have first been decontaminated to below free release levels, there is no objection to using non-radioactive facilities for the recycling and manufacturing activities, provided that the materials are properly tracked to prevent their uncontrolled release. (author)

  19. Endosonographic Features of Histologically Proven Gastric Ectopic Pancreas

    Directory of Open Access Journals (Sweden)

    Jen-Wei Chou

    2014-01-01

    Full Text Available Gastric ectopic pancreas is an uncommon developmental anomaly and its histological diagnosis is usually difficult by using a conventional biopsy forceps. In the literature, most cases of gastric ectopic pancreas were usually diagnosed by gross pattern during endoscopic examination or features of endoscopic ultrasound. In contrast, this disease was seldom diagnosed by histology in clinical practice. Although the typical endoscopic ultrasonographic features of ectopic pancreas include heterogeneous echogenicity, indistinct borders, and a location within 2 or more layers, it can also exhibit hypoechoic homogeneous echogenicity and a distinct border within the fourth sonographic layer (muscularis propria similar to the endoscopic ultrasonographic features of gastrointestinal stromal tumors. In our study, we found that 53% of gastric ectopic pancreas originated within the fourth sonographic layer, demonstrating hypoechoic, homogeneous echogenicity, and distinct borders. Therefore, recognizing endoscopic ultrasonographic features, combining with deep biopsy, endoscopic ultrasound-guided fine needle aspiration/core needle biopsy can prevent conducting unnecessary resection. Surgical resection is the mainstay treatment for symptomatic gastric ectopic pancreas, but endoscopic resection using endoscopic mucosal resection or endoscopic submucosal dissection technique provides an alternative method of removing superficial-type and deep-type gastric ectopic pancreas.

  20. Water use efficiency studies of Acacia senegal (L.) Willd provenances in Sudan

    Energy Technology Data Exchange (ETDEWEB)

    Mustafa, A F; Elamin, K H [Forestry Research Section, Wad Medani (Sudan); Salih, A A [Soil Science Section, Wad Medani (Sudan)

    1996-07-01

    An experiment was conducted in 1989 to screen Acacia senegal L. Willd provenances collected from within the natural gum belt for high water use efficiency. Thirteen provenances were tested for water use efficiency and consequently 6 out of them were selected for further screening. The selection was based on their performance in the preliminary screening. Both the preliminary and the detailed study revealed that provenances 7, 3 and 11 combine high dry matter production with high water use efficiency. Water use efficiency and dry matter production appears to be negatively correlated with root length density and root/shoot ratios. Provenances 7 which exhibited the highest water use efficiency and dry matter yield had the lowest root/shoot ratio and also a low root length density. Based on these studies provenance 7 can be considered a suitable candidate for introduction into gum-belt of Sudan through for rehabilitation of this region. (author). 5 refs, 1 fig., 3 tabs.

  1. Water use efficiency studies of Acacia senegal (L.) Willd provenances in Sudan

    International Nuclear Information System (INIS)

    Mustafa, A.F.; Elamin, K.H.; Salih, A.A.

    1996-01-01

    An experiment was conducted in 1989 to screen Acacia senegal L. Willd provenances collected from within the natural gum belt for high water use efficiency. Thirteen provenances were tested for water use efficiency and consequently 6 out of them were selected for further screening. The selection was based on their performance in the preliminary screening. Both the preliminary and the detailed study revealed that provenances 7, 3 and 11 combine high dry matter production with high water use efficiency. Water use efficiency and dry matter production appears to be negatively correlated with root length density and root/shoot ratios. Provenances 7 which exhibited the highest water use efficiency and dry matter yield had the lowest root/shoot ratio and also a low root length density. Based on these studies provenance 7 can be considered a suitable candidate for introduction into gum-belt of Sudan through for rehabilitation of this region. (author). 5 refs, 1 fig., 3 tabs

  2. EFFECTS OF COLD STRATIFICATION AND GA3 ON GERMINATION OF ARBUTUS UNEDO SEEDS OF THREE PROVENANCES.

    Science.gov (United States)

    Pipinis, Elias; Stampoulidis, Athanasios; Milios, Elias; Kitikidou, Kyriaki; Radoglou, Kalliopi

    2017-01-01

    Arbutus unedo is a valuable Mediterranean shrub as an ornamental plant as well as fruit tree. Fresh fruits of A. unedo are a good source of antioxidants, of vitamins C, E and carotenoids and also are characterized by the high content of mineral elements. The effects of gibberellic acid (GA 3 ) and cold stratification (CS) on seed germination performance were investigated in A. unedo seeds collected from three provenances in the Northern part of Greece. Seeds of each provenance were soaked in solutions of GA 3 (500, 1000 or 2000 ppm) for 24 h and subsequently were subjected to CS at 3 - 5°C for 0, 1, 2, and 3 months. Non-stratified seeds of the three A. unedo provenances which were not treated with GA 3 solutions exhibited very low germination. However, seed germination was significantly improved after a one-month period of CS. Similarly, the non-stratified seeds of all three provenances became non-dormant after the treatment with 2000 ppm GA 3 and they germinated at high percentages. However, in untreated seeds with GA3, after a one-month CS period the seeds of the Pieria provenance exhibited higher germination percentage than that of Rodopi provenance seeds. Furthermore, in non-stratified seeds, the Pieria provenance seeds treated with GA3 germinated at higher percentages and more rapidly than those of the other two provenances. The results indicated that untreated seeds exhibited very low germination at 20/25°C. However, in all three provenances seed germinability was significantly improved by a one-month period of CS or treatment of seeds with 2000 ppm GA3. Furthermore, there was a considerable variability among seed provenances in response to the treatments which were applied.

  3. Diverging Drought Resistance of Scots Pine Provenances Revealed by Infrared Thermography

    Directory of Open Access Journals (Sweden)

    Hannes Seidel

    2016-08-01

    Full Text Available With recent climate changes, Scots pine (Pinus sylvestris L. forests have been affected by die-off events. Assisted migration of adapted provenances mitigates drought impacts and promotes forest regeneration. Although suitable provenances are difficult to identify by traditional ecophysiological techniques, which are time consuming and invasive, plant water status can be easily assessed by infrared thermography. Thus, we examined the stress responses of 2-year-old potted Scots pine seedlings from six provenances (Bulgaria, France, Germany, Italy, Poland, and Spain based on two thermal indices (crop water stress index and stomatal conductance index. Both indices were derived from infrared images during a six-week drought/control treatment in a greenhouse in the summer of 2013. The pines were monitored during the stress and subsequent recovery period. After controlling for fluctuating environmental conditions, soil moisture or treatment-specific water supply was the most important driver of drought stress. The stress magnitude and response to soil water deficit depended on provenance. Under moderate drought conditions, pines from western and eastern Mediterranean provenances (Bulgaria, France, and Spain expressed lower stress levels than those from both continental provenances (Germany and Poland. In pines from the Spanish and Bulgarian provenances, the stress level differences were significantly lower than in continental pines. Moreover, pines from continental provenances were less resilient (showed less recovery after the stress period than Mediterranean pines. Under extreme drought, all provenances were equally stressed with almost no significant differences in their thermal indices. Provenance-specific differences in drought resistance, which are associated with factors such as summer precipitation at the origin of Scots pine seedlings, may offer promising tracks of adaptation to future drought risks.

  4. Scientific Reproducibility in Biomedical Research: Provenance Metadata Ontology for Semantic Annotation of Study Description.

    Science.gov (United States)

    Sahoo, Satya S; Valdez, Joshua; Rueschman, Michael

    2016-01-01

    Scientific reproducibility is key to scientific progress as it allows the research community to build on validated results, protect patients from potentially harmful trial drugs derived from incorrect results, and reduce wastage of valuable resources. The National Institutes of Health (NIH) recently published a systematic guideline titled "Rigor and Reproducibility " for supporting reproducible research studies, which has also been accepted by several scientific journals. These journals will require published articles to conform to these new guidelines. Provenance metadata describes the history or origin of data and it has been long used in computer science to capture metadata information for ensuring data quality and supporting scientific reproducibility. In this paper, we describe the development of Provenance for Clinical and healthcare Research (ProvCaRe) framework together with a provenance ontology to support scientific reproducibility by formally modeling a core set of data elements representing details of research study. We extend the PROV Ontology (PROV-O), which has been recommended as the provenance representation model by World Wide Web Consortium (W3C), to represent both: (a) data provenance, and (b) process provenance. We use 124 study variables from 6 clinical research studies from the National Sleep Research Resource (NSRR) to evaluate the coverage of the provenance ontology. NSRR is the largest repository of NIH-funded sleep datasets with 50,000 studies from 36,000 participants. The provenance ontology reuses ontology concepts from existing biomedical ontologies, for example the Systematized Nomenclature of Medicine Clinical Terms (SNOMED CT), to model the provenance information of research studies. The ProvCaRe framework is being developed as part of the Big Data to Knowledge (BD2K) data provenance project.

  5. Prototyping Practice

    DEFF Research Database (Denmark)

    Ramsgaard Thomsen, Mette; Tamke, Martin

    2015-01-01

    This paper examines the role of the prototyping in digital architecture. During the past decade, a new research field has emerged exploring the digital technology’s impact on the way we think, design and build our environment. In this practice the prototype, the pavilion, installation or demonstr......This paper examines the role of the prototyping in digital architecture. During the past decade, a new research field has emerged exploring the digital technology’s impact on the way we think, design and build our environment. In this practice the prototype, the pavilion, installation...

  6. Resilia cyber resilience best practices

    CERN Document Server

    , AXELOS

    2015-01-01

    RESILIA™ Cyber Resilience Best Practices offers a practical approach to cyber resilience, reflecting the need to detect and recover from incidents, and not rely on prevention alone. It uses the ITIL® framework, which provides a proven approach to the provision of services that align to business outcomes.

  7. The Way of No-Way to Pursue Knowledge in Many Ways (Invited Paper

    Directory of Open Access Journals (Sweden)

    Jayanta Choudhury

    2014-12-01

    Full Text Available "The Tao that can be told is not the eternal Tao. The name that can be named is not the eternal name. The nameless is the beginning of heaven and earth. The named is the mother of ten thousand things. Ever desireless, one can see the mystery. Ever desiring, one can see the manifestations. These two spring from the same source but differ in name; this appears as darkness. Darkness within darkness. The gate to all mystery."–Lao Tsu (B.C. 2500 The above is an English translation of the first verse of the book "Tao Te Ching" by Lao Tsu. A working meaning of the word "Tao" is "way". The technical jargon "multidisciplinary research" or "interdisciplinary research" are research in many named established areas (i.e. chemistry, physics, sociology, mathematics, statistics, theology, philosophy, political science etc. by an individual or a group of individuals. This type of research has a mysterious common theme that cannot be isolated but is present in the manifestations in various research disciplines. One example of a common theme can be the goal of a new technological innovation. In this article, the problems and solutions of such endeavors are identified by practical analogies of living and nonliving natural phenomena to the above quoted verse by Lao Tsu.

  8. Provenance variations of scots pine (Pinus sylvestris L.) in the Southern PART of Turkey

    International Nuclear Information System (INIS)

    Gulcu, S.; Bilir, N.

    2015-01-01

    Tree height, basal diameter, stem form, number, angle and diameter of branches were assessed in eight-year-old provenance test established by 30 seed sources of Scots pine (Pinus sylvestris L.) at Aydogmus and Kemer experimental sites of Southern part of Turkey. Growth of the provenances was also compared to two native species (Taurus cedar- Cedrus libani A. Rich and Black pine-Pinus nigra Arnold.) of the region. Variations within provenance and among provenances, and relations among the traits were estimated. There were large differences (p <= 0.05) within provenance and among provenances for the traits, while sites showed similar (0.05 <= p) performance for tree height and stem form. For instance, average of tree height was 181 cm and varied between 138.3 cm and 229.8 cm in provenances of Aydogmus site, it was 184 cm and ranged from 130 cm to 246.1 cm in that of Kemer site. Averages of tree height of a provenance were 144.4 cm in Aydogmus and 194.5 cm in Kemer. Individual tree height of the provenance varied between 69 cm and 267 cm, and ranged from 51 cm to 280 cm in sites. Averages of tree height were 143.2 cm in Black pine 145.6 cm in Taurus cedar which were natural species of the region. There were mostly positive and significant (p <= 0.05) correlations among the traits. Results of the study were discussed for new plantations and breeding of the species. (author)

  9. Fagus sylvatica L. provenances maintain different leaf metabolic profiles and functional response

    Science.gov (United States)

    Aranda, Ismael; Sánchez-Gómez, David; de Miguel, Marina; Mancha, Jose Antonio; Guevara, María Angeles; Cadahía, Estrella; Fernández de Simón, María Brígida

    2017-07-01

    Most temperate forest tree species will suffer important environmental changes as result of the climate change. Adaptiveness to local conditions could change at different sites in the future. In this context, the study of intra-specific variability is important to clarify the singularity of different local populations. Phenotypic differentiation between three beech provenances covering a wide latitudinal range (Spain/ES, Germany/DE and Sweden/SE), was studied in a greenhouse experiment. Non-target leaf metabolite profiles and ecophysiological response was analyzed in well-watered and water stressed seedlings. There was a provenance-specific pattern in the relative concentrations of some leaf metabolites regardless watering treatment. The DE and SE from the center and north of the distribution area of the species showed a clear differentiation from the ES provenance in the relative concentration of some metabolites. Thus the ES provenance from the south maintained larger relative concentration of some organic and amino acids (e.g. fumaric and succinic acids or valine and isoleucine), and in some secondary metabolites (e.g. kaempferol, caffeic and ferulic acids). The ecophysiological response to mild water stress was similar among the three provenances as a consequence of the moderate water stress applied to seedlings, although leaf N isotope composition (δ15N) and leaf C:N ratio were higher and lower respectively in DE than in the other two provenances. This would suggest potential differences in the capacity to uptake and post-process nitrogen according to provenance. An important focus of the study was to address for the first time inter-provenance leaf metabolic diversity in beech from a non-targeted metabolic profiling approach that allowed differentiation of the three studied provenances.

  10. Defining the "proven technology" technical criterion in the reactor technology assessment for Malaysia's nuclear power program

    Science.gov (United States)

    Anuar, Nuraslinda; Kahar, Wan Shakirah Wan Abdul; Manan, Jamal Abdul Nasir Abd

    2015-04-01

    Developing countries that are considering the deployment of nuclear power plants (NPPs) in the near future need to perform reactor technology assessment (RTA) in order to select the most suitable reactor design. The International Atomic Energy Agency (IAEA) reported in the Common User Considerations (CUC) document that "proven technology" is one of the most important technical criteria for newcomer countries in performing the RTA. The qualitative description of five desired features for "proven technology" is relatively broad and only provides a general guideline to its characterization. This paper proposes a methodology to define the "proven technology" term according to a specific country's requirements using a three-stage evaluation process. The first evaluation stage screens the available technologies in the market against a predefined minimum Technology Readiness Level (TRL) derived as a condition based on national needs and policy objectives. The result is a list of technology options, which are then assessed in the second evaluation stage against quantitative definitions of CUC desired features for proven technology. The potential technology candidates produced from this evaluation is further narrowed down to obtain a list of proven technology candidates by assessing them against selected risk criteria and the established maximum allowable total score using a scoring matrix. The outcome of this methodology is the proven technology candidates selected using an accurate definition of "proven technology" that fulfills the policy objectives, national needs and risk, and country-specific CUC desired features of the country that performs this assessment. A simplified assessment for Malaysia is carried out to demonstrate and suggest the use of the proposed methodology. In this exercise, ABWR, AP1000, APR1400 and EPR designs assumed the top-ranks of proven technology candidates according to Malaysia's definition of "proven technology".

  11. Autumn frost hardiness in Norway spruce plus tree progeny and trees of the local and transferred provenances in central Sweden.

    Science.gov (United States)

    Hannerz, Mats; Westin, Johan

    2005-09-01

    Reforestation with provenances from locations remote from the planting site (transferred provenances) or the progeny of trees of local provenances selected for superior form and vigor (plus trees) offer alternative means to increase yield over that obtained by the use of seed from unselected trees of the local provenance. Under Swedish conditions, Norway spruce (Picea abies (L.) Karst.) of certain transferred provenances generally has an advantage in productivity relative to the local provenance comparable to that of progeny of plus trees. The aim of this study was to explore the extent to which productivity gains achieved by provenance transfer or the use of plus tree progeny are associated with reductions in autumn frost hardiness, relative to that of trees of the local provenance. In a field trial with 19-year-old trees in central Sweden, bud hardiness was tested on four occasions during the autumn of 2002. Trees of the local provenance were compared with trees of a south Swedish provenance originating 3 degrees of latitude to the south, a Belarusian provenance and the progeny of plus trees of local origin. The Belarusian provenance was the least hardy and the local provenance the most hardy, with plus tree progeny and the south Swedish provenance being intermediate in hardiness. Both the Belarusian provenance and the plus tree progeny were significantly taller than trees of the other populations. Within provenances, tree height was negatively correlated with autumn frost hardiness. Among the plus tree progeny, however, no such correlation between tree height and autumn frost hardiness was found. It is concluded that although the gain in productivity achieved by provenance transfer from Belarus was comparable to that achieved by using the progeny of plus trees of the local provenance, the use of trees of the Belarus provenance involved an increased risk of autumn frost damage because of later hardening.

  12. Ontology development for provenance tracing in National Climate Assessment of the US Global Change Research Program

    Science.gov (United States)

    Fu, Linyun; Ma, Xiaogang; Zheng, Jin; Goldstein, Justin; Duggan, Brian; West, Patrick; Aulenbach, Steve; Tilmes, Curt; Fox, Peter

    2014-05-01

    This poster will show how we used a case-driven iterative methodology to develop an ontology to represent the content structure and the associated provenance information in a National Climate Assessment (NCA) report of the US Global Change Research Program (USGCRP). We applied the W3C PROV-O ontology to implement a formal representation of provenance. We argue that the use case-driven, iterative development process and the application of a formal provenance ontology help efficiently incorporate domain knowledge from earth and environmental scientists in a well-structured model interoperable in the context of the Web of Data.

  13. Leadership as a Way of Being: A Way Forward for a News Industry in Chaotic Transition

    Science.gov (United States)

    Herndon, Keith; McCline, Richard

    2017-01-01

    Hesselbein developed the concept: "leadership is a matter of how to be and not how to do." Joseph later provided instructional content based on the concept and helped operationalize it for consumption by practicing leaders. This paper leverages their work in illustrating how leadership-as-a-way-of-being (LWB) can be a teaching model for…

  14. Research on supplying potential of uranium source from rocks in western provenance area of Hailaer basin

    International Nuclear Information System (INIS)

    Xia Yuliang; Liu Hanbin; Chinese Academy of Geological Sciences, Beijing

    2006-01-01

    Using U-Pb isotope composition evolution, this paper expounds the initial uranium content in volcanic rocks of provenance area of Xihulitu basin and in granites of provenance area of Kelulun sag, western Hailaer basin. The initial uranium content (U 0 ) in volcanic rocks of provenance area is higher, the average initial uranium content of volcanic rocks is 10.061 x 10 -6 , the average uranium variation coefficient (ΔU) is -49.57%; the average initial uranium content of granites is 18.381 x 10 -6 , the average uranium variation coefficient (ΔU) is -80%. The results indicate that rocks in provenance area could provide the pre-enrichment of uranium in deposited sandstone. U-Ra equilibrium coefficients of rocks indicate that there is obvious U-Ra disequilibrium phenomenon in volcanic rocks, and the time when granites provided uranium source occurred 16000 a ago. (authors)

  15. VisTrails is an open-source scientific workflow and provenance management system

    CSIR Research Space (South Africa)

    Mthombeni, Thabo DM

    2011-12-01

    Full Text Available VisTrails is an open-source scientific workflow and provenance management system that provides support for simulations, data exploration and visualization. Whereas workflows have been traditionally used to automate repetitive tasks, for applications...

  16. Pharmacists' Perception of the Sale of Non-Clinically Proven Health ...

    African Journals Online (AJOL)

    HP

    Proven Health Supplements in Penang, Malaysia. Mohamed A Hassali. 1 ... Conclusions: Pharmacists who participated in the study have mixed opinions on the efficacy ... acceptance amongst the general public in many parts of the world in ...

  17. Towards an Ontology-Driven Blockchain Design for Supply Chain Provenance

    OpenAIRE

    Kim, Henry M.; Laskowski, Marek

    2016-01-01

    An interesting research problem in our age of Big Data is that of determining provenance. Granular evaluation of provenance of physical goods--e.g. tracking ingredients of a pharmaceutical or demonstrating authenticity of luxury goods--has often not been possible with today's items that are produced and transported in complex, inter-organizational, often internationally-spanning supply chains. Recent adoption of Internet of Things and Blockchain technologies give promise at better supply chai...

  18. Assessment of baroreflex sensitivity from spontaneous oscillations of blood pressure and heart rate: proven clinical value?

    International Nuclear Information System (INIS)

    Pinna, Gian Domenico; Maestri, Roberto; La Rovere, Maria Teresa

    2015-01-01

    The baroreceptor-heart rate reflex (baroreflex sensitivity, BRS) is a key mechanism contributing to the neural regulation of the cardiovascular system. Several methods have been proposed so far to assess BRS by analyzing the spontaneous beat-to-beat fluctuations of arterial blood pressure and heart rate. These methods are inherently simple, non-invasive and low-cost. This study is an attempt to address the question of whether spontaneous baroreflex methods have proven to be of value in the clinical setting. In the first part of this article, we critically review most representative clinical studies using spontaneous BRS techniques either for risk stratification or treatment evaluation, these being major issues in the clinical management of the patients. In the second part, we address two important aspects of spontaneous BRS measurements: measurability and reliability. Estimation of BRS in the studies selected for the review was performed according to the sequence, transfer function, alpha-index and phase-rectified signal averaging method. Arterial blood pressure was recorded non-invasively during supine, short-term (<30 min) laboratory recordings. The conclusion from this review is that spontaneous BRS techniques have been shown to be of great value in clinical practice but further work is needed to confirm the validity of previous findings and to widen the field of clinical applications. Measurability and reliability can be a major issue in the measurement of spontaneous BRS, particularly in some patient populations like post-myocardial infarction and heart failure patents. Main causes of poor measurability are: non-sinus rhythm, a high rate of ectopic beats and the need for recorded time series of RR interval and arterial blood pressure to satisfy the constraints of the different BRS estimation algorithms. As for reliability, within-subject variability is rather high in the measurements of spontaneous BRS and, therefore, should be carefully taken into account

  19. Nuclear Thermal Propulsion (NTP): A Proven, Growth Technology for Fast Transit Human Missions to Mars

    Science.gov (United States)

    Borowski, Stanley K.; McCurdy, David R.; Packard, Thomas W.

    2014-01-01

    The "fast conjunction" long surface stay mission option was selected for NASA's recent Mars Design Reference Architecture (DRA) 5.0 study because it provided adequate time at Mars (approx. 540 days) for the crew to explore the planet's geological diversity while also reducing the "1-way" transit times to and from Mars to approx. 6 months. Short transit times are desirable in order to reduce the debilitating physiological effects on the human body that can result from prolonged exposure to the zero-gravity (0-gE) and radiation environments of space. Recent measurements from the RAD detector attached to the Curiosity rover indicate that astronauts would receive a radiation dose of approx. 0.66 Sv (approx. 66 rem)-the limiting value established by NASA-during their 1-year journey in deep space. Proven nuclear thermal rocket (NTR) technology, with its high thrust and high specific impulse (Isp approx. 900 s), can cut 1-way transit times by as much as 50 percent by increasing the propellant capacity of the Mars transfer vehicle (MTV). No large technology scale-ups in engine size are required for these short transit missions either since the smallest engine tested during the Rover program-the 25 klbf "Pewee" engine is sufficient when used in a clustered arrangement of three to four engines. The "Copernicus" crewed MTV developed for DRA 5.0 is a 0-gE design consisting of three basic components: (1) the NTP stage (NTPS); (2) the crewed payload element; and (3) an integrated "saddle truss" and LH2 propellant drop tank assembly that connects the two elements. With a propellant capacity of approx. 190 t, Copernicus can support 1-way transit times ranging from approx. 150 to 220 days over the 15-year synodic cycle. The paper examines the impact on vehicle design of decreasing transit times for the 2033 mission opportunity. With a fourth "upgraded" SLS/HLV launch, an "in-line" LH2 tank element can be added to Copernicus allowing 1-way transit times of 130 days. To achieve 100

  20. CREATIVE PRACTICES IN DEVELOPING INTERCULTURAL COMMUNICATIVE COMPETENCE

    Directory of Open Access Journals (Sweden)

    Lyudmila M. Andryukhina

    2016-09-01

    Full Text Available Introduction: the article is concerned with the topical problem of extending intercultural communicative competence in the educational process. Materials and Methods: the authors made a theoretical and empirical analysis of domestic and foreign research and analytical reports prepared in the framework of international projects, the activity of non-governmental organisations, in particular the activities of Sverdlovsk regiona l public organisation “Friends of France”. Results: it is proven that intercultural competence cannot be fully developed by traditional forms of education, and even the existing current innovative experience in this area is insufficient. The integration of education becomes a crucial factor. The article describes the creative educational practices of such integration as the conditions for broadening intercultural communicative competence. The basic characteristics of creative practices are described. Сreative practices being integrated fo rm a creative platform. Discussion and Conclusions: the system of conditions and means for broadening intercultural communicative competence is in constant development. The authors propose to consider the communicative competence as a system of creative practices transformed in the course of elaboration into creative platforms, expanding in the process of intercultural dialogue. This is a promising way to achieve the comprehensive result – completeness of integrated multi-component structure of the intercultural co mmunicative competence.

  1. Job Sharing--A New Way to Work

    Science.gov (United States)

    Olmsted, Barney

    1977-01-01

    Describes the concept of job sharing, discusses the advantages and disadvantages to employees and employers, examines how widespread the practice is, and suggests ways that interested employers can implement this option. (SH)

  2. Ways of Viewing Pictorial Plasticity

    NARCIS (Netherlands)

    Wijntjes, M.W.A.

    2017-01-01

    The plastic effect is historically used to denote various forms of stereopsis. The vivid impression of depth often associated with binocular stereopsis can also be achieved in other ways, for example, using a synopter. Accounts of this go back over a hundred years. These ways of viewing all aim

  3. ESIP's Emerging Provenance and Context Content Standard Use Cases: Developing Examples and Models for Data Stewardship

    Science.gov (United States)

    Ramdeen, S.; Hills, D. J.

    2013-12-01

    Earth science data collections range from individual researchers' private collections to large-scale data warehouses, from computer-generated data to field or lab based observations. These collections require stewardship. Fundamentally, stewardship ensures long term preservation and the provision of access to the user community. In particular, stewardship includes capturing appropriate metadata and documentation--and thus the context of the data's creation and any changes they underwent over time --to enable data reuse. But scientists and science data managers must translate these ideas into practice. How does one balance the needs of current and (projected) future stakeholders? In 2011, the Data Stewardship Committee (DSC) of the Federation of Earth Science Information Partners (ESIP) began developing the Provenance and Context Content Standard (PCCS). As an emerging standard, PCCS provides a framework for 'what' must be captured or preserved as opposed to describing only 'how' it should be done. Originally based on the experiences of NASA and NOAA researchers within ESIP, the standard currently provides data managers with content items aligned to eight key categories. While the categories and content items are based on data life cycles of remote sensing missions, they can be generalized to cover a broader set of activities, for example, preservation of physical objects. These categories will include the information needed to ensure the long-term understandability and usability of earth science data products. In addition to the PCCS, the DSC is developing a series of use cases based on the perspectives of the data archiver, data user, and the data consumer that will connect theory and practice. These cases will act as specifications for developing PCCS-based systems. They will also provide for examination of the categories and content items covered in the PCCS to determine if any additions are needed to cover the various use cases, and also provide rationale and

  4. MIMO Four-Way Relaying

    DEFF Research Database (Denmark)

    Liu, Huaping; Sun, Fan; De Carvalho, Elisabeth

    2013-01-01

    Two-way relaying in wireless systems has initiated a large research effort during the past few years. Nevertheless, it represents only a specific traffic pattern and it is of interest to investigate other traffic patterns where such a simultaneous processing of information flows can bring...... performance advantage. In this paper we consider a \\emph{four-way relaying} multiple-input multiple-output (MIMO) scenario, where each of the two Mobile Stations (MSs) has a two-way connection to the same Base Station (BS), while each connection is through a dedicated Relay Station (RS). The RSs are placed...... the sum-rate of the new scheme for Decode-and-Forward (DF) operational model for the RS. We compare the performance with state-of-the-art reference schemes, based on two-way relaying with DF. The results indicate that the sum-rate of the two-phase four-way relaying scheme largely outperforms the four...

  5. WAYS TO MANAGE HEATING INERTIA

    Directory of Open Access Journals (Sweden)

    E. V. Biloshytskyi

    2017-08-01

    Full Text Available Purpose. The research paper proposes to estimate the effect of heat inertia of the water heating system, in transient operation modes, on the temperature condition in the passenger car, as well as to offer technical solutions intended to reduce the heating system inertia effect and to maintain a stable temperature condition in the passenger car premises in transitional modes of the heating system. Methodology. The author developed the method for controlling the heat transfer of heating system pipes with the help of regulating casing. To control the heating system and the heat transfer of heating pipes, two types of temperature control sensors were used in the passenger car: certain sensors interacted with regulatory casings, while the others interacted with high-voltage tubular heating element control devices. To assess the efficiency of heat interchange regulation of heating pipes and the heating system control, with installed regulating casings, the operation of the heating system with regulating casings and two types of sensors was mathematically modelled. Mathematical modelling used the experimental test data. The results of experimental tests and mathematical modelling were compared. Findings. Currently in operated passenger cars, control of heating appliances is not constructively provided. Automatic maintenance of the set temperature in a passenger car is limited to switching on and off of high-voltage tubular heating elements. The use of regulating casings on heating pipes allows reducing the effects of heat inertia and maintaining stable thermal conditions in a passenger car, using the heating system as a heat accumulator, and also provides the opportunity to realize an individual control of air temperature in the compartment. Originality. For the first time, the paper studied the alternative ways of regulating the temperature condition in a passenger car. Using of the heating system as a heat accumulator. Practical value. The

  6. Ten ways for provider units to weather this economic downturn.

    Science.gov (United States)

    Bernard, Amy

    2009-05-01

    The current economic recession challenges all continuing nursing education provider units to review operational practices and explore ways to maintain and ensure financial viability. Adjustments in programs are likely, as nurses seek more cost-effective ways of meeting their continuing education requirements. Further, employers are reducing staff and budgets. As a result, provider units need to reassess operations and refocus outcomes.

  7. Different ways to handle topography in practical geoid determination

    DEFF Research Database (Denmark)

    Dahl, O.C.; Forsberg, René

    1999-01-01

    In this paper two different methods of how to handle topography in geoid determination is investigated. First method employs the Residual Terrain Model (RTM) remove-restore technique and yields the quasigeoid, whereas the second method is the classical Helmert condensation method, yielding...... the topography was represented by either a detailed (100 m) or a coarse (1000 m) digital terrain model. The inclusion of bathymetry in the terrain model was also investigated. Even if two different methods were used, they produced almost identical results at the 5 cm level in the mountains, but small systematic...

  8. A practicable way towards a renewable energy economy

    International Nuclear Information System (INIS)

    Mueller, C.

    1992-01-01

    The intensive use of oil, natural gas, coal and nuclear power destructs by pollutant accumulations our bases of life. With renewable energy sources on a decentrealized base a natural cycle can be used without devastating whole areas. After a great number of unfortunately uncoordinated attempts this statement has often enough been proved. Now the basis for a broad use of the necessary small-scale equipment has to be created. With the political decision to introduce an automatic trade system for electric power and rail taxis we are able to reduce pollutant emissions to a degree which is compatible with the environment. This gives an enormous economic impetus and is thus employment-creating. With mass production the necessary small-scale equipment will become cheaper than the currently used large-scale equipment. (orig.) [de

  9. Unpacking the species conundrum: philosophy, practice and a way ...

    Indian Academy of Sciences (India)

    KARTIK SHANKER

    2017-07-19

    Jul 19, 2017 ... individual, biparental organisms which share a common fertilization system'. ... modified by Wiley (1978), the evolutionary species concept. (ESC) defines species as ... munities, particularly genetic exchange, and ecological.

  10. Best practices show the way to information security maturity

    CSIR Research Space (South Africa)

    Lessing, MM

    2008-09-01

    Full Text Available A Security Maturity Model (SMM) provides an organisation with a distinct Information Security framework. Organisations that conform to these models are likely to pursue satisfactory Information Security. Additionally, the use of Security Maturity...

  11. The Multiwavelength Milky Way Project

    Science.gov (United States)

    Brown, B. A.; Leisawitz, D.; Boyd, P. T.; Digel, S. W.; Friedlander, J.; Kessel, R. L.; Smale, A. P.

    2000-12-01

    We describe an ongoing effort to communicate what is known about the Milky Way, and how our understanding of the Galaxy has advanced in recent decades with observations across the electromagnetic spectrum. Our aim is to help students, educators, and the general public understand the structure of the Milky Way, and our location within it. Inspired by the warm reception to our Multiwavelength Milky Way poster (26,000 copies distributed; requested by people in over 50 countries) we created several related products and a new version of the poster. The updated poster contains ten Galactic plane maps and a legend that points out prominent features and objects. The Multiwavelength Milky Way web site at http://adc.gsfc.nasa.gov/mw provides an image browsing capability, links to data files and journal articles, lesson plans and suggested activities for teachers, and a poster order form. We created a slide set comprised of multiwavelength all-sky maps and a ``Multiwavelength Milky Way'' image corresponding to the poster. The Galactic plane maps featured on the poster raise questions in the minds of many non-astronomers: ``Where are we in this picture?'' and ``How do we know what we know?'' To help answer these questions we developed a realistic three-dimensional model of the Milky Way and used state-of-the-art animation techniques to create a 28-minute video called The Milky Way's Invisible Light. The viewer is taken on a tour of the Galaxy that ends at the Sun's location, from which the 3-D model is shown to resemble the Galactic plane surveys depicted on the Multiwavelength Milky Way poster. The video can be ordered on the web at http://space.gsfc.nasa.gov/astro/education/mw_film or from the ASP catalog. The Multiwavelength Milky Way project is sponsored by the Astrophysics Data Facility at NASA's Goddard Space Flight Center.

  12. Persistent identifiers for web service requests relying on a provenance ontology design pattern

    Science.gov (United States)

    Car, Nicholas; Wang, Jingbo; Wyborn, Lesley; Si, Wei

    2016-04-01

    Delivering provenance information for datasets produced from static inputs is relatively straightforward: we represent the processing actions and data flow using provenance ontologies and link to stored copies of the inputs stored in repositories. If appropriate detail is given, the provenance information can then describe what actions have occurred (transparency) and enable reproducibility. When web service-generated data is used by a process to create a dataset instead of a static inputs, we need to use sophisticated provenance representations of the web service request as we can no longer just link to data stored in a repository. A graph-based provenance representation, such as the W3C's PROV standard, can be used to model the web service request as a single conceptual dataset and also as a small workflow with a number of components within the same provenance report. This dual representation does more than just allow simplified or detailed views of a dataset's production to be used where appropriate. It also allow persistent identifiers to be assigned to instances of a web service requests, thus enabling one form of dynamic data citation, and for those identifiers to resolve to whatever level of detail implementers think appropriate in order for that web service request to be reproduced. In this presentation we detail our reasoning in representing web service requests as small workflows. In outline, this stems from the idea that web service requests are perdurant things and in order to most easily persist knowledge of them for provenance, we should represent them as a nexus of relationships between endurant things, such as datasets and knowledge of particular system types, as these endurant things are far easier to persist. We also describe the ontology design pattern that we use to represent workflows in general and how we apply it to different types of web service requests. We give examples of specific web service requests instances that were made by systems

  13. Physiological response to drought stress in Camptotheca acuminata seedlings from two provenances

    Directory of Open Access Journals (Sweden)

    Yeqing eYing

    2015-05-01

    Full Text Available Drought stress is a key environmental factor limiting the growth and productivity of plants. The purpose of this study was to investigate the physiological responses of Camptotheca acuminata (C. acuminata to different drought stresses and compare the drought tolerance between the provenances Kunming (KM and Nanchang (NC, which are naturally distributed in different rainfall zones with annual rainfalls of 1000-1100 mm and 1600-1700 mm, respectively. We determined relative water content (RWC, chlorophyll content (Chl(a+b, net photosynthesis (Pn, gas exchange parameters, relative leakage conductivity (REC, malondialdehyde (MDA content and superoxide dismutase (SOD and peroxidase (POD activities of C. acuminata seedlings under both moderate (50% of maximum field capacity and severe drought stress (30% of maximum field capacity. As the degree of water stress increased, RWC, Chl(a+b content, Pn, stomatal conductance (Gs, transpiration rate (Tr and intercellular CO2 concentration (Ci values decreased, but water use efficiency (WUE, REC, MDA content and SOD and POD activities increased in provenances KM and NC. Under moderate and severe drought stress, provenance KM had higher RWC, Chl(a+b, Pn, WUE, SOD and POD and lower Gs, Tr, Ci and REC in leaves than provenance NC. The results indicated that provenance KM may maintain stronger drought tolerance via improvements in water-retention capacity, antioxidant enzyme activity and membrane integrity.

  14. Dance your way to fitness

    Science.gov (United States)

    ... ency/patientinstructions/000809.htm Dance your way to fitness To use the sharing features on this page, ... to rhythm and music. Many health clubs and fitness centers offer dance workout classes, such as Zumba. ...

  15. Web of life and ways of life

    Directory of Open Access Journals (Sweden)

    Caterina Croce

    2013-03-01

    Full Text Available The notion of bios is a key-concept in Foucault's research. In the studies about the ancient world, bios stands out as an ethic substance relevant to the practice, the control and the transformation of the self. It is worth investigating the analogies and the differences between the notion of bios as it is meant in the last lectures at the Collège de France and that of bios as a creative force, shared and plural, that we find in previous seasons of Foucault research. The issue of 'way of life' allows us to explore the ambivalences of this topic. In its singular/plural declination, bios raises questions about the common living, which results from the coexistence and sharing of different ways of life – bioi – that cut through the ground of the institutionalized relationships.

  16. Ways of Viewing Pictorial Plasticity

    OpenAIRE

    Maarten W. A. Wijntjes

    2017-01-01

    The plastic effect is historically used to denote various forms of stereopsis. The vivid impression of depth often associated with binocular stereopsis can also be achieved in other ways, for example, using a synopter. Accounts of this go back over a hundred years. These ways of viewing all aim to diminish sensorial evidence that the picture is physically flat. Although various viewing modes have been proposed in the literature, their effects have never been compared. In the current study, we...

  17. Changing the Way We Work

    Science.gov (United States)

    Coote, Anna

    2010-01-01

    A 21-hour working week is a long way from today's standard of 40 hours or more, but not so far-fetched when people consider the infinitely varied ways in which they actually spend their time. On average, people of working age spend 19.6 hours a week in paid employment and 20.4 hours in unpaid housework and childcare. These averages mask huge…

  18. One Stop Post Op cardiac surgery recovery--a proven success.

    Science.gov (United States)

    Joyce, L; Pandolph, P

    2001-01-01

    The One Stop Post Op model for open heart surgery recovery is an innovative approach to post op care utilized in only a few facilities in the country. This model calls for an integration of acute ICU and step-down phases of care, thus changing the paradigm for nursing care of the open heart surgery patient. Typically, hospitals incur inefficiencies transferring the patient through multiple levels of care, thus resulting in a "disconnect" as new caregivers relearn the patient's care requirements and special needs. The construction of a "one stop" unit allows the patient to remain stationary while the service level changes to accommodate changing care needs. The cardiac "one stop" model is similar to the LDRP concept for obstetrical care. The One Stop Post Op patient rooms are designed to accommodate every level of patient acuity. All rooms meet the regulations for critical care room design, however this is where the aesthetic similarity ends. The patient environment looks more like hotel rooms rather than the traditional ICU setting. Cabinets designed to cover medical gases, in the room's private bathrooms and comfortable furnishings help to create a patient focused environment conducive to recovery. This model has been utilized by several facilities and has demonstrated clear clinical and economic advantages for patients, families, and health care providers. Implementing an open heart surgery (OHS) program presents the opportunity for several community based hospitals to challenge the way they have been providing patient care and establish an innovative approach to post surgery patient care. The One Stop Post Op cardiovascular recovery unit is designed to receive the OHS patient directly from the operating room and to be the "care unit" for the patient's entire stay. Patient flow, quality monitoring and caregiver acceptance in this unit requires new paradigms from the traditional two or three step post OHS care delivery process. The One Stop Post Op model focuses

  19. Use of laser induced breakdown spectroscopy in the determination of gem provenance: beryls

    International Nuclear Information System (INIS)

    McManus, Catherine E.; McMillan, Nancy J.; Harmon, Russell S.; Whitmore, Robert C.; De Lucia, Frank C. Jr.; Miziolek, Andrzej W.

    2008-01-01

    The provenance of gem stones has been of interest to geologists, gemologists, archeologists, and historians for centuries. Laser induced breakdown spectroscopy (LIBS) provides a minimally destructive tool for recording the rich chemical signatures of gem beryls (aquamarine, goshenite, heliodor, and morganite). Broadband LIBS spectra of 39 beryl (Be3Al2Si6O18) specimens from 11 pegmatite mines in New Hampshire, Connecticut, and Maine (USA) are used to assess the potential of using principal component analysis of LIBS spectra to determine specimen provenance. Using this technique, beryls from the three beryl-bearing zones in the Palermo no. 1 pegmatite (New Hampshire) can be recognized. However, the compositional variation within this single mine is comparable to that in beryls from all three states. Thus, a very large database with detailed location metadata will be required to routinely determine gem beryl provenance

  20. Provenance variation in subalpine fir grown as an exotic tree species in Denmark and Iceland

    DEFF Research Database (Denmark)

    Skúlason, Brynjar

    Neonectria neomacrospora in Denmark. In Iceland the corkbark fir showed superior results, especially for survival rate and Christmas tree quality. The White River provenance from British Columbia is recommended for use in Denmark. The Mount Taylor provenance from the Cibola National Forest in New Mexico...... fir (A. lasiocarpa var. lasiocarpa) and corkbark fir (A. lasiocarpa var. arizonica (Merriam) Lemmon) was established at three sites in Denmark and at one site in Iceland in 1999. Adaptability, Christmas tree quality, growth rhythm and susceptibility to pests and pathogens were measured and assessed...... and the most spring frost damage on buds. The westernmost subalpine fir provenances from Washington state and British Columbia showed the overall best results in Denmark, with the highest survival (after 15 years), fastest height growth and highest Christmas tree quality and profitability, as well as both good...

  1. Community of practice as a collective way of learning and development of practices and knowledge of the family health strategy: a theoretical study - Home Revista Brasileira em Promoção da Saúde RBPS VOL. 25 Nº2 SUPLEMENTO 2012 Editorial Atributos e

    Directory of Open Access Journals (Sweden)

    Ana Ecilda Lima Ellery

    2012-11-01

    Full Text Available Objective: Present and discuss the contribution of the concept of Community of Practice (CP, while collective space of learning and development of knowledge and practice in multidisciplinary teams of Family Health Strategy. Methods: Theoretical study through nonsystematic literature reviews the theme of “Communities of Practice” in the work of social researchers Jean Lave and Etienne Wenger, who developed this concept, completed with studies on the same topic from the research in online databases. Results: A CP is characterized by a group of people who forged and got engaged in a common project, sharing a repertoire, which allowed communication between them. Several effects are attributed to the experience of working together in a CP, such as the socialization of knowledge, the interprofessional collaboration and the development of an environment conducive to reflective practice, which facilitates the conflict mediation. The theory of CP requires a major change in the conception of learning. Unlike theories that consider learning as resulting mainly from the internal process of the person, as the cognitive, the CP’s theory conceives learning through the angle of social participation. The inter-relationship developed by the CP influences the learning process, negotiation of meaning and identity formation, which results from the fact of belonging to the community and from the meaning attributed to the collaborative. Conclusion: The formation of Community of Practice in Family Health Strategy can be a device to facilitate the construction of interdisciplinary projects, expressed by the integration of knowledge and interprofessional collaboration.

  2. Automated metadata, provenance cataloging and navigable interfaces: Ensuring the usefulness of extreme-scale data

    Energy Technology Data Exchange (ETDEWEB)

    Schissel, D.P., E-mail: schissel@fusion.gat.com [General Atomics, P.O. Box 85608, San Diego, CA 92186-5608 (United States); Abla, G.; Flanagan, S.M. [General Atomics, P.O. Box 85608, San Diego, CA 92186-5608 (United States); Greenwald, M. [Massachusetts Institute of Technology, Cambridge, MA 02139 (United States); Lee, X. [General Atomics, P.O. Box 85608, San Diego, CA 92186-5608 (United States); Romosan, A.; Shoshani, A. [Lawrence Berkeley National Laboratory, Berkeley, CA 94720 (United States); Stillerman, J.; Wright, J. [Massachusetts Institute of Technology, Cambridge, MA 02139 (United States)

    2014-05-15

    For scientific research, it is not the mere existence of experimental or simulation data that is important, but the ability to make use of it. This paper presents the results of research to create a data model, infrastructure, and a set of tools that support data tracking, cataloging, and integration across a broad scientific domain. The system is intended to document workflow and data provenance in the widest sense. Combining research on integrated metadata, provenance, and ontology information with research on user interfaces has allowed the construction of early prototype. While using fusion science as a test bed, the system's framework and data model is quite general.

  3. Incipient archaeometry in Venezuela. Provenance study of pre-Hispanic pottery figurines

    International Nuclear Information System (INIS)

    Sajo Bohus, L.; Greaves, E.D.; Bermudez, J.; Mackowiak de Antczak, Ma. M.; Antczak, A.; Kasztovszky, Zs.; Poirier, T.; Simonits, A.

    2005-01-01

    Application of different analytical techniques contributed with new results to the interpretation and the provenance study of Venezuelan figurines dating from the 12th and 15th centuries. Elements in bulk samples, powdered samples of figurines and soil were determined using total reflection X-ray fluorescence (TXRF), instrumental neutron activation analysis (INAA) and prompt gamma activation analysis (PGAA). Results and ceramics macroscopic observations indicate that average elemental composition of the figurines from the mainland significantly differ from those encountered on the Caribbean islands. The multidisciplinary experience de facto formed a group dedicated to archaeometry and provided data for provenance study of pre-Hispanic pottery figurines. (author)

  4. Provenance-specific growth responses to drought and air warming in three European oak species

    Energy Technology Data Exchange (ETDEWEB)

    Arend, Matthias; Kuster, Thomas; Gunthardt-Goerg, Madeleine S.; Dobbertin, Matthias

    2011-03-15

    This study evaluated oak growth responses to air warming through research conducted with species coming from climatically different sites submitted to differing climates including periodic drought and air warming. Results showed different responses to drought and air warming as an adaptation to the conditions, and differences in growth response from one provenance to another were found but local climate factors were not responsible. This study highlighted that provenance was important to growth responses and it will have to be taken into account for regeneration of oaks in a changed climate if these results are confirmed.

  5. The photon is no strict particle and nonlocality is far from being proven

    Energy Technology Data Exchange (ETDEWEB)

    Greulich, Karl Otto [Fritz Lipmann Institut, Jena (Germany)

    2010-07-01

    Two aspects of philosophical discussions on physics are the wave particle dualism and non locality including entanglement. However the strict particle aspect of the photon, in the common sense view, has never been proven. The accumulation time argument, the only experimental verification of a strictly particle like photon, has so far not yet been satisfied. Also, experiments thought to prove nonlocality have loophole which have so far not yet been safely closed, and now an even more serious loophole emerges. Thus, also nonlocality cannot be seen as proven. This demands some fine tuning of philosophical discussions on critical experiments in physics.

  6. Evaluation of aspect-oriented frameworks in Python for extending a project with provenance documentation features

    Directory of Open Access Journals (Sweden)

    2011-08-01

    Full Text Available In this paper we describe two sides of a real life use case of introducing an aspect-oriented framework into an industrial-grade project. This paper is divided into two parts: the selection process for an AOP framework in the Python programming language, and its use for modularized non-invasive recording of provenance data in a distributed data management tool. Criteria for the choice of such a framework are discussed and the background of provenance documentation is laid out.

  7. Automated metadata, provenance cataloging and navigable interfaces: Ensuring the usefulness of extreme-scale data

    International Nuclear Information System (INIS)

    Schissel, D.P.; Abla, G.; Flanagan, S.M.; Greenwald, M.; Lee, X.; Romosan, A.; Shoshani, A.; Stillerman, J.; Wright, J.

    2014-01-01

    For scientific research, it is not the mere existence of experimental or simulation data that is important, but the ability to make use of it. This paper presents the results of research to create a data model, infrastructure, and a set of tools that support data tracking, cataloging, and integration across a broad scientific domain. The system is intended to document workflow and data provenance in the widest sense. Combining research on integrated metadata, provenance, and ontology information with research on user interfaces has allowed the construction of early prototype. While using fusion science as a test bed, the system's framework and data model is quite general

  8. Advancing nursing practice: redefining the theoretical and practical integration of knowledge.

    Science.gov (United States)

    Christensen, Martin

    2011-03-01

    The aim of this paper is to offer an alternative knowing-how knowing-that framework of nursing knowledge, which in the past has been accepted as the provenance of advanced practice. The concept of advancing practice is central to the development of nursing practice and has been seen to take on many different forms depending on its use in context. To many it has become synonymous with the work of the advanced or expert practitioner; others have viewed it as a process of continuing professional development and skills acquisition. Moreover, it is becoming closely linked with practice development. However, there is much discussion as to what constitutes the knowledge necessary for advancing and advanced practice, and it has been suggested that theoretical and practical knowledge form the cornerstone of advanced knowledge. The design of this article takes a discursive approach as to the meaning and integration of knowledge within the context of advancing nursing practice. A thematic analysis of the current discourse relating to knowledge integration models in an advancing and advanced practice arena was used to identify concurrent themes relating to the knowing-how knowing-that framework which commonly used to classify the knowledge necessary for advanced nursing practice. There is a dichotomy as to what constitutes knowledge for advanced and advancing practice. Several authors have offered a variety of differing models, yet it is the application and integration of theoretical and practical knowledge that defines and develops the advancement of nursing practice. An alternative framework offered here may allow differences in the way that nursing knowledge important for advancing practice is perceived, developed and coordinated. What has inevitably been neglected is that there are various other variables which when transposed into the existing knowing-how knowing-that framework allows for advanced knowledge to be better defined. One of the more notable variables is

  9. The alignment of impacted and ectopic teeth using the Easy-Way-Coil (EWC) System.

    Science.gov (United States)

    Schubert, Michael

    2008-05-01

    Teeth that do not spontaneously erupt in the dental arch or are ectopic must normally be surgically exposed. For orthodontic correction a traction device must be attached to the affected tooth over which the already-raised mucoperiosteal flap is lowered to improve the periodontal condition. The author has developed a system at his private orthodontic practice for this purpose, and it has proven itself over a 10-year period. A traction spring is fastened to a lingual button that is attached to the etched tooth surface using an adhesive. The appliance is activated by systematically shortening the spring. A total of 103 patients were treated successfully in this way, 45 of whom had presented a unilaterally ectopic canine requiring an average treatment time of 17.8 months from surgical exposure to removal of the fixed appliance. None of the patients suffered inflammatory reactions in the oral mucosa adjacent to the traction spring during the treatment. Two impacted teeth were ankylosed and could not be aligned. The EWC-System is clinically a reliable, efficient, easy to use and economical system for the alignment of impacted and ectopic teeth.

  10. Drawing Between Practices

    DEFF Research Database (Denmark)

    Wallace, Jamie

    The fusion of art making and research enables the artist's practice to be understood as a unique form of enquiry.  Notions such as 'material thinking' go some way to explain complex creative phenomena normally shrouded within the peculiarities of individual practice. But, are such notions useful...... is that the reflexive personal interaction of art practice adopted within professional inquiry can offer new inspirations, new creative contradictions and ways of thinking...

  11. Ways of Thinking, Ways of Seeing Mathematical and other Modelling in Engineering and Technology

    CERN Document Server

    Dillon, Chris

    2012-01-01

    This fascinating book examines some of the characteristics of technological/engineering models that are likely to be unfamiliar to those who are interested primarily in the history and philosophy of science and mathematics, and which differentiate technological models from scientific and mathematical ones. Themes that will be highlighted include: • the role of language: the models developed for engineering design have resulted in new ways of talking about technological systems • communities of practice: related to the previous point, particular engineering communities have particular ways of sharing and developing knowledge • graphical (re)presentation: engineers have developed many ways of reducing quite complex mathematical models to more simple representations • reification: highly abstract mathematical models are turned into ‘objects’ that can be manipulated almost like components of a physical system • machines: not only the currently ubiquitous digital computer, but also older analogue dev...

  12. La relación entre el locus de control, las estrategias de afrontamiento y las prácticas de autocuidado en pacientes diabéticos The relationship among ways of coping, locus of control and selfcare practices in diabetics´patients

    Directory of Open Access Journals (Sweden)

    Susana Azzollini

    2010-12-01

    Full Text Available Se llevó a cabo un estudio descriptivo con el objetivo de identificar la relación entre locus de control, estrategias de afrontamiento y prácticas de autocuidado en pacientes con diagnóstico de diabetes tipo II que concurrían a hospitales públicos. La hipótesis es que es más probable que las personas con locus de control interno valoren la enfermedad como desafío y presenten estrategias de afrontamiento activas, resultando que sus prácticas de autocuidado sean más adecuadas y efectivas que las de quienes tienen un locus de control externo. Se seleccionó una muestra probabilística al azar sistemático de 337 pacientes a quienes se les suministró: cuestionario de conocimientos sobre la diabetes, escala de locus de control, inventario de estilos de afrontamiento, escala de frecuencias de prácticas de autocuidado y escala de Likert sobre actitudes y creencias hacia la enfermedad. Los datos fueron analizados estadísticamente. Se confirmó la hipótesis. Se espera que los resultados puedan utilizarse para mejorar la adhesión a los tratamientos.A descriptive research had been done with the aim of knowing the relationship among locus of control, ways of coping and self care practices in patients suffering from diabetes type II, who are attended at public hospitals of Buenos Aires city. Hypothesis: it would be more probable that people with internal locus of control would evaluate the illness as a challenge and would have active ways of coping. As a result, their self care practices would be more effective than those of people with an external locus of control. Methods: 337 individuals were selected through a probabilistic random systematic sampling, to answer some questionnaires: knowledge about diabetes type II, Locus of control Scale, Ways of coping Inventory, Scale of frequencies' self care, Likert scale about attitudes and beliefs toward illness´. Data were statistically analyzed. Results: The hypothesis was confirmed. It is hoped

  13. Long-term effects of elevated carbon dioxide concentration and provenance on four clones of Sitka spruce (Picea sitchensis). I. Plant growth, allocation and ontogeny

    Energy Technology Data Exchange (ETDEWEB)

    Centritto, M. [Inst. di Biochimica ed Ecofisiologia Vegetale, Rome (Italy); Lee, H.S.J.; Jarvis, P.G. [Univ. Edinburgh, Inst. of Ecology and Resource Management, Edinburgh (United Kingdom)

    1999-09-01

    An investigation was carried out to determine the effects of elevated CO(2) concentration on the long-term growth and carbon allocation of four clones of Sitka spruce taken from two provenances under conditions of non-limiting water and nutrient supply. The use of clones from different provenances provided a unique way of examining effects of elevated CO(2) concentration on competitiveness of saplings adapted to climates with different temperature and day length. The saplings were fertilized following the Ingestad approach to yield a supply of mineral nutrients at free access in order to maintain nutrient uptake proportional to plant growth, and rule out undefined variability in sink strength that might have been caused by water and nutrient deficiencies. There was considerable variation in growth responses among clones. Across all four clones there was a 40% increase in total dry mass of the saplings growth in elevated CO(2) concentration, but the genetic differences in the growth response to elevated CO(2) concentration were significant. The clones originated from different latitudinal provenances, and were acclimated to different temperatures and day length climates, and so had different abilities to acclimate to their new environment. Some Sitka spruce clones may grow better in lowland Scotland as climate change occurs. Genetic differences in the growth response to elevated CO(2) concentration may be exploited through the assessment of nursery stock for future forest planning. 33 refs., 5 figs.

  14. The Provenance of Late Bronze Age Transport Amphorae found in Egypt

    Directory of Open Access Journals (Sweden)

    L.M.V. Smith

    2000-10-01

    Full Text Available This study, which forms part of a larger project on Canaanite amphorae, illustrates the use of ceramic petrography in refining the visual classification of the fabrics of imported New Kingdom amphorae excavated from Memphis and Amarna in Egypt. Provenances for the Canaanite amphorae are suggested which contradict previous assumptions.

  15. Protru: Leveraging Provenance to Enhance Network Trust in a Wireless Sensor Network

    Science.gov (United States)

    Dogan, Gulustan

    2013-01-01

    Trust can be an important component of wireless sensor networks for believability of the produced data and historical value is a crucial asset in deciding trust of the data. A node's trust can change over time after its initial deployment due to various reasons such as energy loss, environmental conditions or exhausting sources. Provenance can…

  16. Opening Up Climate Research: A Linked Data Approach to Publishing Data Provenance

    Directory of Open Access Journals (Sweden)

    Arif Shaon

    2012-03-01

    Full Text Available Traditionally, the formal scientific output in most fields of natural science has been limited to peer-reviewed academic journal publications, with less attention paid to the chain of intermediate data results and their associated metadata, including provenance. In effect, this has constrained the representation and verification of the data provenance to the confines of the related publications. Detailed knowledge of a dataset’s provenance is essential to establish the pedigree of the data for its effective re-use, and to avoid redundant re-enactment of the experiment or computation involved. It is increasingly important for open-access data to determine their authenticity and quality, especially considering the growing volumes of datasets appearing in the public domain. To address these issues, we present an approach that combines the Digital Object Identifier (DOI – a widely adopted citation technique – with existing, widely adopted climate science data standards to formally publish detailed provenance of a climate research dataset as an associated scientific workflow. This is integrated with linked-data compliant data re-use standards (e.g. OAI-ORE to enable a seamless link between a publication and the complete trail of lineage of the corresponding dataset, including the dataset itself.

  17. Effects Of Drought Stress on Germination in Fourteen Provenances of Pinus Brutia Ten. Seeds in Turkey

    Directory of Open Access Journals (Sweden)

    Hakan Şevik

    2015-02-01

    Full Text Available Pinus brutia Ten., Red pine, known to be tough drought resistant pine specie, could effectively be used for afforestation of disturbed areas. It is of great interest for the afforestation in arid zones. Appropriate seed sources for the specific areas guarantees reforestation success. Away from its native areas Pinus brutia Ten. is planted for its ornamental value and timber production purposes. Selection of drought resistant provenances can very well increase the survival success. In this study, the effects of water potential on germination were studied in fourteen provenances of Pinus brutia Ten. from Turkey. Water potentials between 0 and -8 bars were obtained using polyethylene glycol 6000 (PEG-6000 solutions. Seeds were kept for 35 day at 20 ± 0.5°C. A decrease in water potential produced a marked reduction in germination percentage and germination value. As a result, significant variations between the provenances were found. It was determined that, under a -8 bar water stress, Isparta-Bucak and Mersin-Silifke, respectively corresponding to 58% and 57% of the control group, were the least water stress affected provenances.

  18. Scab susceptibility of a provenance collection of pecan in in the southeastern USA

    Science.gov (United States)

    Pecan scab is the most economically destructive disease of pecan in the Southeast US. It is spread in rain and is widespread in the Southeast where conditions conducive to epidemics. A provenance collection of pecan from 19 locations representing the native range of the tree is located in Byron, Geo...

  19. Using sedimentary archives to reconstruct pollution history and sediment provenance: The Ohre River, Czech Republic

    Czech Academy of Sciences Publication Activity Database

    Matys Grygar, Tomáš; Elznicová, J.; Kiss, T.; Smith, H. G.

    2016-01-01

    Roč. 144, SEP (2016), s. 109-129 ISSN 0341-8162 R&D Projects: GA ČR GA15-00340S Institutional support: RVO:61388980 Keywords : Polluted floodplains * Pollution history * Fluvial archives * Sediment provenance * Environmental geochemistry Subject RIV: DD - Geochemistry Impact factor: 3.191, year: 2016

  20. A history-tracing XML-based provenance framework for workflows

    NARCIS (Netherlands)

    Gerhards, M; Belloum, A.; Berretz, F.; Sander, V.; Skorupa, S.

    2010-01-01

    The importance of validating and reproducing the outcome of computational processes is fundamental to many application domains. Assuring the provenance of workflows will likely become even more important with respect to the incorporation of human tasks to standard workflows by emerging standards

  1. The provenance study of Chinese ancient architectonical colored glaze by INAA

    International Nuclear Information System (INIS)

    Cheng Lin; Feng Songlin; Li Rongwu; Lue Zhirong; Li Guoxia

    2008-01-01

    The colored glazes are very popular and famous in Chinese ancient architectures. In order to exactly locate the provenance of ancient architectonical colored glazes, 196 pieces of ancient colored glaze bodies and porcelain bodies fired in Xiyue Temple and Lidipo kiln are analyzed by INAA. The results of factor analysis and some archaeological questions are reported and discussed in this paper

  2. The provenance study of Chinese ancient architectonical colored glaze by INAA

    Energy Technology Data Exchange (ETDEWEB)

    Cheng Lin [Key Laboratory of Beam Technology and Material Modification of Ministry of Education, College of Nuclear Science and Technology, Beijing Radiation Center, Beijing Normal University, Beijing 100875 (China); Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049 (China)], E-mail: chenglin@bnu.edu.cn; Feng Songlin [Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049 (China); Li Rongwu [Department of Physics, Beijing Normal University, Beijing 100049 (China); Lue Zhirong [Shan' xi Provincial Institute of Cultural Relics and Archaeology, Xi' an 710054 (China); Li Guoxia [Institute of Physical Engineering, Zhengzhou University, Zhengzhou 450052 (China)

    2008-12-15

    The colored glazes are very popular and famous in Chinese ancient architectures. In order to exactly locate the provenance of ancient architectonical colored glazes, 196 pieces of ancient colored glaze bodies and porcelain bodies fired in Xiyue Temple and Lidipo kiln are analyzed by INAA. The results of factor analysis and some archaeological questions are reported and discussed in this paper.

  3. Tactile signage leads the way.

    Science.gov (United States)

    2004-10-01

    As implementation of Part III of the 1995 Disability Discrimination Act draws closer, service providers are looking to their obligations and how they can fulfil them in a cost-effective way. Most sighted people assume that blind or visually impaired people read Braille and therefore Braille signage is a perfectly adequate measure. In fact this is a misconception.

  4. Nuclear energy: the way ahead

    International Nuclear Information System (INIS)

    Fells, I.

    1981-01-01

    The biggest task facing the nuclear power industry is one of educating public and politicians in such a way that a balanced critical approach to the risks and benefits of nuclear power replaces the uninformed emotional response. Only then, the author believes, can political decision-makers, reflecting public response, develop acceptable energy strategies. (author)

  5. DESIGNERLY WAYS TO THEORETICAL INSIGHT

    DEFF Research Database (Denmark)

    Bang, Anne Louise; Gelting, Anne Katrine Gøtzsche; Friis, Silje Alberthe Kamille

    2014-01-01

    visualisation exercise. In addition, theories for how to understand designerly ways of knowing and constructing knowledge have been applied as tools to think with in the discussion. The educational approach where design students read, analyse, and visualise theory, appears to be beneficial to the students...

  6. The four-fold way

    International Nuclear Information System (INIS)

    Terazawa, H.

    1986-01-01

    The four-fold way is proposed in a minimal composite model of quarks and leptons. Various new pictures and consequences are presented and discussed. They include 1) generation, 2) quark-lepton mass spectrum, 3) quark mixing, 4) supersymmetry, 5) effective gauge theory. (author)

  7. The Errors of Our Ways

    Science.gov (United States)

    Kane, Michael

    2011-01-01

    Errors don't exist in our data, but they serve a vital function. Reality is complicated, but our models need to be simple in order to be manageable. We assume that attributes are invariant over some conditions of observation, and once we do that we need some way of accounting for the variability in observed scores over these conditions of…

  8. The practice portrait

    DEFF Research Database (Denmark)

    Thomsen, Rie

    2016-01-01

    The ability of the individual practitioner to grasp how her own practice is interwoven with different societal structures and interests can be seen as the first step on the way to social justice. This article investigates how the practice portrait can be used as an analytical and practical method...

  9. Facilitating Scientific Research through Workflows and Provenance on the DataONE Cyberinfrastructure (Invited)

    Science.gov (United States)

    Ludaescher, B.; Cuevas-Vicenttín, V.; Missier, P.; Dey, S.; Kianmajd, P.; Wei, Y.; Koop, D.; Chirigati, F.; Altintas, I.; Belhajjame, K.; Bowers, S.

    2013-12-01

    Provenance data has numerous applications in science. Two key ones are 1) replication: facilitate the repeatable derivation of results and 2) discovery: enable the location of data based on processing history and derivation relationships. The following scenario illustrates a typical use of provenance data. Alice, a climate scientist, has developed a VisTrails workflow to prepare Gross Primary Productivity (GPP) data. After verifying that the workflow generates data in the desired form, she uses the ReproZip tool to create a reproducible package that will enable other scientists to re-run the workflow without having to install and configure the particular libraries she is using. In addition, she exports the provenance information of the workflow execution and customizes it through a tool such as the ProvExplorer, in order to eliminate the information she regards as superfluous. She then creates and shares a DataONE data package containing the data she prepared, the ReproZip package, the customized provenance, and additional science/system metadata. Both the customized provenance and metadata are indexed by the DataONE Cyberinfrastructure (CI) for discovery purposes. Bob, another climate scientist, is looking for a benchmark GPP data to validate the Terrestrial Biosphere Model (TBM) he has developed. Searching the DataONE repository he finds Alice's data package. He retrieves its ReproZip package, customizes it (e.g. changing the spatial resolution), and re-runs it to generate the benchmark data in the form he desires. The newly generated data is then used as input for his own model evaluation workflow. His workflow generates residual maps and a Taylor diagram that enable him to evaluate the similarity between the results of his model and the benchmark data. At this point, Bob can also make use of the tools Alice used to publish his results as another discoverable and reproducible data package. In order to support these capabilities, we propose to extend the Data

  10. Change in Sediment Provenance Near the Current Estuary of Yellow River Since the Holocene Transgression

    Science.gov (United States)

    Song, Sheng; Feng, Xiuli; Li, Guogang; Liu, Xiao; Xiao, Xiao; Feng, Li

    2018-06-01

    Sedimentary sequence and sediment provenance are important factors when it comes to the studies on marine sedimentation. This paper studies grain size distribution, lithological characteristics, major and rare earth elemental compositions, micropaleontological features and 14C ages in order to examine sedimentary sequence and sediment provenance of the core BH6 drilled at the mouth of the Yellow River in Bohai Sea. According to the grain size and the micropaleontological compositions, 4 sedimentary units have been identified. Unit 1 (0-8.08 mbsf) is of the delta sedimentary facies, Unit 2 (8.08-12.08 mbsf) is of the neritic shelf facies, Unit 3 (12.08-23.85 mbsf) is of near-estuary beach-tidal facies, and Unit 4 (23.85 mbsf-) is of the continental lake facies. The deposits from Unit 1 to Unit 3 have been found to be marine strata formed after the Holocene transgression at about 10 ka BP, while Unit 4 is continental lacustrine deposit formed before 10 ka BP. The provenances of core BH6 sediments show properties of the continental crust and vary in different sedimentary periods. For Unit 4 sediments, the source regions are dispersed while the main provenance is not clear, although the parent rock characteristics of a few samples are similar to the Luanhe River sediments. For Unit 3, sediments at 21.1-23.85 mbsf have been mainly transported from the Liaohe River, while sediments above 21.1 mbsf are mainly from the Yellow River and partially from the Liaohe River. For Unit 2, the sediments have been mainly transported from the Yellow River, with a small amount from other rivers. For Unit 1, the provenance is mainly the Yellow River catchment. These results help in better understanding the evolution of the Yellow River Delta.

  11. Golden Trail: Retrieving the Data History that Matters from a Comprehensive Provenance Repository

    Directory of Open Access Journals (Sweden)

    Paolo Missier

    2012-03-01

    Full Text Available Experimental science can be thought of as the exploration of a large research space, in search of a few valuable results. While it is this “Golden Data” that gets published, the history of the exploration is often as valuable to the scientists as some of its outcomes. We envision an e-research infrastructure that is capable of systematically and automatically recording such history – an assumption that holds today for a number of workflow management systems routinely used in e-science. In keeping with our gold rush metaphor, the provenance of a valuable result is a “Golden Trail”. Logically, this represents a detailed account of how the Golden Data was arrived at, and technically it is a sub-graph in the much larger graph of provenance traces that collectively tell the story of the entire research (or of some of it.In this paper we describe a model and architecture for a repository dedicated to storing provenance traces and selectively retrieving Golden Trails from it. As traces from multiple experiments over long periods of time are accommodated, the trails may be sub-graphs of one trace, or they may be the logical representation of a virtual experiment obtained by joining together traces that share common data.The project has been carried out within the Provenance Working Group of the Data Observation Network for Earth (DataONE NSF project. Ultimately, our longer-term plan is to integrate the provenance repository into the data preservation architecture currently being developed by DataONE.

  12. Patients with computed tomography-proven acute diverticulitis require follow-up to exclude colorectal cancer

    Directory of Open Access Journals (Sweden)

    Shafquat Zaman

    2017-04-01

    Full Text Available Background/Aims: Traditionally, patients with acute diverticulitis undergo follow-up endoscopy to exclude colorectal cancer (CRC. However, its usefulness has been debated in this era of high-resolution computed tomography (CT diagnosis. We assessed the frequency and outcome of endoscopic follow-up for patients with CT-proven acute diverticulitis, according to the confidence in the CT diagnosis.Methods: Records of patients with CT-proven acute diverticulitis between October 2007 and March 2014 at Sandwell & West Birmingham Hospitals NHS Trust were retrieved. The National Cancer Registry confirmed the cases of CRC. Endoscopy quality indicators were compared between these patients and other patients undergoing the same endoscopic examination over the same period.Results: We identified 235 patients with CT-proven acute diverticulitis, of which, 187 were managed conservatively. The CT report was confident of the diagnosis of acute diverticulitis in 75% cases. Five of the 235 patients were subsequently diagnosed with CRC (2.1%. Three cases of CRC were detected in the 187 patients managed conservatively (1.6%. Forty-eight percent of the conservatively managed patients underwent follow-up endoscopy; one case of CRC was identified. Endoscopies were often incomplete and caused more discomfort for patients with diverticulitis compared with controls.Conclusions: CRC was diagnosed in patients with CT-proven diverticulitis at a higher rate than in screened asymptomatic populations, necessitating follow-up. CT reports contained statements regarding diagnostic uncertainty in 25% cases, associated with an increased risk of CRC. Follow-up endoscopy in patients with CT-proven diverticulitis is associated with increased discomfort and high rates of incompletion. The use of other follow-up modalities should be considered.

  13. Shielding practice

    International Nuclear Information System (INIS)

    Sauermann, P.F.

    1985-08-01

    The basis of shielding practice against external irradiation is shown in a simple way. For most sources of radiation (point sources) occurring in shielding practice, the basic data are given, mainly in the form of tables, which are required to solve the shielding problems. The application of these data is explained and discussed using practical examples. Thickness of shielding panes of glove boxes for α and β radiation; shielding of sealed γ-radiography sources; shielding of a Co-60 radiation source, and of the manipulator panels for hot cells; damping factors for γ radiation and neutrons; shielding of fast and thermal neutrons, and of bremsstrahlung (X-ray tubes, Kr-85 pressure gas cylinders, 42 MeV betatrons, 20 MeV linacs); two-fold shielding (lead glass windows for hot cells, 14 MeV neutron generators); shielding against scattered radiation. (orig./HP) [de

  14. Black and red granites in the Egyptian Antiquity Museum of Turin. A minero-petrographic and provenance study.

    Science.gov (United States)

    Serra, M.; Borghi, A.; Vaggelli, G.; D'Amicone, E.; Vigna, L.

    2009-04-01

    The University of Turin, in cooperation with the Egyptian Antiquity Museum, has recently undertaken several projects aimed at developing a scientific approach to the analysis of ancient Egyptian finds. In particular, a straightforward project to investigate the stony handcrafts preserved in the statuary rooms started in 2006 to obtain their systematic petrographic classification and their possible geological sources. The main intent of the project was to understand the provenance of the materials used in Pharaonic period, setting the base for the identification of the ancient quarry sites and for a correct interpretation of the extraction and working techniques, in order to provide fundamental information about economical and social development of Egyptian civilization through historical times. The choice to focus attention on black and red granites came from the statement of the percentage relevance (40 of the 54 sculptures actually exposed) of these materials in the statuary rooms. Moreover, especially for black granites, the need of detailed minero-petrographic analysis arose from the difficulty in making a macroscopic classification of the fine-grained dark-coloured rock varieties. Therefore, five black granite statues, belonging to the Drovetti collection were sampled in a micro-invasive way: three sculptures of goddess Sekhmet (cat. 260, 251, 247), the statue of Ramses II (cat. 1380) and the statue of goddess Hathor (cat. 694). The choice to analyse even three of the twenty-one statues of goddess Sekhmet (cat. 247, cat. 251, cat. 260), originally located in the same Egyptian temple but ichnographically different, derived from the need of answering the archaeological questions about their provenance. On the other hand, the opportunity of studying the fine-grained black rocks used for the sculptures of goddess Hathor (cat. 694) and of Ramses II in Majesty (cat. 1380), symbol of the Egyptian museum of Turin, provided the opportunity to analyse and classify the

  15. Relay Selection and Resource Allocation in One-Way and Two-Way Cognitive Relay Networks

    KAUST Repository

    Alsharoa, Ahmad M.

    2013-05-08

    In this work, the problem of relay selection and resource power allocation in one- way and two-way cognitive relay networks using half duplex channels with different relaying protocols is investigated. Optimization problems for both single and multiple relay selection that maximize the sum rate of the secondary network without degrading the quality of service of the primary network by respecting a tolerated interference threshold were formulated. Single relay selection and optimal power allocation for two-way relaying cognitive radio networks using decode-and-forward and amplify-and-forward protocols were studied. Dual decomposition and subgradient methods were used to find the optimal power allocation. The transmission process to exchange two different messages between two transceivers for two-way relaying technique takes place in two time slots. In the first slot, the transceivers transmit their signals simultaneously to the relay. Then, during the second slot the relay broadcasts its signal to the terminals. Moreover, improvement of both spectral and energy efficiency can be achieved compared with the one-way relaying technique. As an extension, a multiple relay selection for both one-way and two-way relaying under cognitive radio scenario using amplify-and-forward were discussed. A strong optimization tool based on genetic and iterative algorithms was employed to solve the 
formulated optimization problems for both single and multiple relay selection, where discrete relay power levels were considered. Simulation results show that the practical and low-complexity heuristic approaches achieve almost the same performance of the optimal relay selection schemes either with discrete or continuous power distributions while providing a considerable saving in terms of computational complexity.

  16. Learning as way-finding

    DEFF Research Database (Denmark)

    Dau, Susanne

    motions of humans and non-human agencies. The findings reveal that learning; formal and informal can be conceptualized by the metaphor of way-finding; embodied, emotionally and/or cognitive both individually and socially. Way-finding, is argued, to be a contemporary concept for learning processes......, knowledge development and identity-shaping, where learning emerges through motions, feeling and thinking within an information rich world in constant change.......Based on empirical case-study findings and the theoretical framework of learning by Illeris coupled with Nonaka & Takeuchis´s perspectives on knowledge creation, it is stressed that learning are conditioned by contextual orientations-processes in spaces near the body (peripersonal spaces) through...

  17. The Way of the Sign

    DEFF Research Database (Denmark)

    Elias, Camelia

    The Way of the Sign is a book about extraction, about reducing methods of inquiry to the bare bones. It guides students through 10 schools of theory and criticism. The focus is on ‘asking’ each theory to give its best in the simplest way, by making us see what is at stake and how we might respond...... to it. In simple Socratic dialogues, Elias invents scenarios: ‘What is happening?’ Deconstruction asks. And we answer with it: ‘We are buying a mythology.’ ‘How does it make us feel?’ ‘Dumb.’ ‘What is happening?’ Marxism asks. And we answer with it: ‘The rich cheat us.’ ‘How does it make us feel...

  18. Isotopic provenance analysis and terrane tectonics: a warning about sediment transport distances

    International Nuclear Information System (INIS)

    Bassett, K.N.

    1999-01-01

    Full text: In the last 10 years the field of provenance analysis has undergone a revolution with the development of single-crystal isotopic dating techniques, the most common being U/Pb zircon and 40Ar/39Ar techniques. These have allowed age determination of single crystals thus providing more detail about probable provenance of each individual grain rather than an averaged population of grains. The usefulness for resolving complex terrane accretion and translation histories was immediately obvious and there have been many studies in many different regions aimed at tracking terrane motions by provenance of individual grains upward through the stratigraphy of a basin. Recent research in the North American Cordilleran terranes and in the New Zealand Torlesse Superterrane show how widely used and powerful these provenance analysis techniques are. However, isotopic provenance analysis has often been presented as key information to resolve controversies around terrane translation histories with very little discussion of the context of sedimentary facies and sediment transport mechanisms. An example is the recent use of U/Pb detrital zircon ages as the supposedly controversy-ending evidence for the amount of lateral translation of the Insular Superterrane in British Columbia (Baja BC) (Mahoney et al., 1999). The zircon grains were separated from fine-grained turbidite deposits and could easily have been transported over very large distances by a variety of mechanisms; yet they were presented as definitively resolving the Baja BC controversy. Modern examples illustrate the problem of using the provenance of fine grained sediment to constrain terrane tectonics. Sediment in the tip of the Bengal submarine fan was transported ∼3000 km from source, first by fluvial processes then by sediment gravity flow in the submarine fan. The detrital isotopic ages of single grains are the same as the depositional ages indicating a very rapid unroofing and transport rate with minimal

  19. Turtle geometry the Python way

    OpenAIRE

    Battle, S.

    2014-01-01

    An introduction to coding using Python’s on-screen ‘turtle’ that can be commanded with a few simple instructions including forward, backward, left and right. The turtle leaves a trace that can be used to draw geometric figures. This workshop is aimed at beginners of all ages. The aim is to learn a smattering of programming and a little bit of geometry in a fun way.

  20. The Fourth Way in Finland

    Directory of Open Access Journals (Sweden)

    Vesa Iitti

    2008-01-01

    Full Text Available This article focuses on the general history of the Fourth Way in Finland. The Fourth Way, or simply ‘the Work’, began as a Greco-Armenian man named Georges Ivanovich Gurdjieff (1866?–1949 gathered groups of pupils in St Petersburg and Moscow in 1912. To these groups, Gurdjieff started to teach what he had learned and synthesized between ca 1896 and 1912 during his travels on spiritual search of Egypt, Crete, Sumeria, Assyria, the Holy Land, Mecca, Ethiopia, Sudan, India, Afghanistan, the northern valleys of Siberia, and Tibet. Neither Gurdjieff nor any of his disciples called themselves a church, a sect, or anything alike, but referred to themselves simply as ‘the Work’, or as ‘the Fourth Way’. The name ‘the Fourth Way’ originates in a Gurdjieffian view that there are essentially three traditional ways of spiritual work: those of a monk, a fakir, and a yogi. These ways do not literally refer to the activities of a monk, a fakir, and a yogi, but to similar types of spiritual work emphasizing exercise of emotion, body, or mind. Gurdjieff’s teaching is a blend of various influences that include Suf­ism, orthodox Christianity, Buddhism, Kabbalah, and general elem­ents of various occult teachings of both the East and the West. Gurdjieff’s teaching is a blend of various influences that include Suf­ism, orthodox Christianity, Buddhism, Kabbalah, and general elem­ents of various occult teachings of both the East and the West. It is a unique combination of cosmology, psychology, theory of evolution, and overall theory and practise aiming to help individ­uals in their efforts towards what is called ‘self-remembering’.

  1. Ways of Viewing Pictorial Plasticity

    Directory of Open Access Journals (Sweden)

    Maarten W. A. Wijntjes

    2017-03-01

    Full Text Available The plastic effect is historically used to denote various forms of stereopsis. The vivid impression of depth often associated with binocular stereopsis can also be achieved in other ways, for example, using a synopter. Accounts of this go back over a hundred years. These ways of viewing all aim to diminish sensorial evidence that the picture is physically flat. Although various viewing modes have been proposed in the literature, their effects have never been compared. In the current study, we compared three viewing modes: monocular blur, synoptic viewing, and free viewing (using a placebo synopter. By designing a physical embodiment that was indistinguishable for the three experimental conditions, we kept observers naïve with respect to the differences between them; 197 observers participated in an experiment where the three viewing modes were compared by performing a rating task. Results indicate that synoptic viewing causes the largest plastic effect. Monocular blur scores lower than synoptic viewing but is still rated significantly higher than the baseline conditions. The results strengthen the idea that synoptic viewing is not due to a placebo effect. Furthermore, monocular blur has been verified for the first time as a way of experiencing the plastic effect, although the effect is smaller than synoptic viewing. We discuss the results with respect to the theoretical basis for the plastic effect. We show that current theories are not described with sufficient details to explain the differences we found.

  2. Ways of Viewing Pictorial Plasticity.

    Science.gov (United States)

    Wijntjes, Maarten W A

    2017-01-01

    The plastic effect is historically used to denote various forms of stereopsis. The vivid impression of depth often associated with binocular stereopsis can also be achieved in other ways, for example, using a synopter. Accounts of this go back over a hundred years. These ways of viewing all aim to diminish sensorial evidence that the picture is physically flat. Although various viewing modes have been proposed in the literature, their effects have never been compared. In the current study, we compared three viewing modes: monocular blur, synoptic viewing, and free viewing (using a placebo synopter). By designing a physical embodiment that was indistinguishable for the three experimental conditions, we kept observers naïve with respect to the differences between them; 197 observers participated in an experiment where the three viewing modes were compared by performing a rating task. Results indicate that synoptic viewing causes the largest plastic effect. Monocular blur scores lower than synoptic viewing but is still rated significantly higher than the baseline conditions. The results strengthen the idea that synoptic viewing is not due to a placebo effect. Furthermore, monocular blur has been verified for the first time as a way of experiencing the plastic effect, although the effect is smaller than synoptic viewing. We discuss the results with respect to the theoretical basis for the plastic effect. We show that current theories are not described with sufficient details to explain the differences we found.

  3. Perspectives on Psychological Science: Right Way/Wrong Way Symposium.

    Science.gov (United States)

    Gunnar, Megan R

    2017-07-01

    In unpredictable times, it is perhaps even more important to contemplate the direction different fields of science are headed. In this article, I contemplate two directions of psychological science: the increasing integration of the study of psychology with other sciences and the concern of many sciences, including ours, with improving the reproducibility of our findings. Both of these are argued to be "right ways," but these directions also have challenges that, unless carefully addressed, could detract from our ability to move the science of psychology forward. I detail these challenges along with a consideration of how to chart our science through the unpredictable waters we face at this point in history.

  4. Biometric characters of seeds and wings as markers of geographical differentiation between European scots pine (Pinus sylvestris L. provenances

    Directory of Open Access Journals (Sweden)

    Lech Urbaniak

    2014-01-01

    Full Text Available Biometric characters of seeds and wings served to describe interprovenance differentiation of Scots pine in Europe. Grouping analysis was applied, Mahalanobis distances were calculated as well as Hotellings T2 statistics were applied. The similarity of East European and Finnish provenances was conspicuous. The provenance from Scotland proved to be similar to provenances originating from the region of Scandinavia. On the other hand, two southern provenances 54(Rychtal, Poland and 55(Luboml, Ukraine, were also found similar to provenances originating from the region of Scandinavia (western Norway. The obtained pattern of reciprocal relations may indicate pathways of Scots pine migration in the postglacial period or may be a result of adaptation to certain similar environmental conditions. No relations were detected between size of seeds and geographic origin of provenances.

  5. Leading the Way: Children First.

    Science.gov (United States)

    Henry, Patricia S.

    1992-01-01

    The National PTA President writes about the PTA's desire for parents to cherish their children, noting the importance of the early years in developing emotionally and physically strong children. The article introduces the National PTA book, "Growing Up Confident," which presents practical ideas on good parenting. (SM)

  6. Lesson Planning the Kodaly Way.

    Science.gov (United States)

    Boshkoff, Ruth

    1991-01-01

    Discusses the contribution of Zoltan Kodaly to music lesson planning. Emphasizes preparation, presentation, and practice as the three important strategies in teaching concepts and skills to be included in a lesson plan. Includes a sample lesson plan covering a semester and advice on choosing song material. (DK)

  7. Ballgame teaching - the Scandinavian way

    DEFF Research Database (Denmark)

    Halling, Anders; Engell, Christian; Hansen, Torben

    2008-01-01

    is being build? This includes the fundamentals of good PE practice such as physical activity, games, performance, social interaction and individual reflection. On the basis of resent research results based on the Teaching Games for Understanding concept, the purpose of this article is to outline...

  8. Leading the Way in Literacy

    Science.gov (United States)

    Houck, Bonnie; Novak, Sandi

    2017-01-01

    Schools and districts are required to have improvement plans that specify instructional and curricular ideas to enhance teachers' ongoing practice and assist students in performing at higher levels. Yet little has been done to examine the specific knowledge that principals need regarding literacy teaching and learning or how districts can build…

  9. Ontology development for provenance tracing in National Climate Assessment of the US Global Change Research Program

    Science.gov (United States)

    Ma, X.; Zheng, J. G.; Goldstein, J.; Duggan, B.; Xu, J.; Du, C.; Akkiraju, A.; Aulenbach, S.; Tilmes, C.; Fox, P. A.

    2013-12-01

    The periodical National Climate Assessment (NCA) of the US Global Change Research Program (USGCRP) [1] produces reports about findings of global climate change and the impacts of climate change on the United States. Those findings are of great public and academic concerns and are used in policy and management decisions, which make the provenance information of findings in those reports especially important. The USGCRP is developing a Global Change Information System (GCIS), in which the NCA reports and associated provenance information are the primary records. We were modeling and developing Semantic Web applications for the GCIS. By applying a use case-driven iterative methodology [2], we developed an ontology [3] to represent the content structure of a report and the associated provenance information. We also mapped the classes and properties in our ontology into the W3C PROV-O ontology [4] to realize the formal presentation of provenance. We successfully implemented the ontology in several pilot systems for a recent National Climate Assessment report (i.e., the NCA3). They provide users the functionalities to browse and search provenance information with topics of interest. Provenance information of the NCA3 has been made structured and interoperable by applying the developed ontology. Besides the pilot systems we developed, other tools and services are also able to interact with the data in the context of the 'Web of data' and thus create added values. Our research shows that the use case-driven iterative method bridges the gap between Semantic Web researchers and earth and environmental scientists and is able to be deployed rapidly for developing Semantic Web applications. Our work also provides first-hand experience for re-using the W3C PROV-O ontology in the field of earth and environmental sciences, as the PROV-O ontology is recently ratified (on 04/30/2013) by the W3C as a recommendation and relevant applications are still rare. [1] http

  10. Identification of provenance rocks based on EPMA analyses of heavy minerals

    Science.gov (United States)

    Shimizu, M.; Sano, N.; Ueki, T.; Yonaga, Y.; Yasue, K. I.; Masakazu, N.

    2017-12-01

    Information on mountain building is significant in the field of geological disposal of high-level radioactive waste, because this affects long-term stability in groundwater flow system. Provenance analysis is one of effective approaches for understanding building process of mountains. Chemical compositions of heavy minerals, as well as their chronological data, can be an index for identification of provenance rocks. The accurate identification requires the measurement of as many grains as possible. In order to achieve an efficient provenance analysis, we developed a method for quick identification of heavy minerals using an Electron Probe Micro Analyzer (EPMA). In this method, heavy mineral grains extracted from a sample were aligned on a glass slide and mounted in a resin. Concentration of 28 elements was measured for 300-500 grains per sample using EPMA. To measure as many grains as possible, we prioritized swiftness of measurement over precision, configuring measurement time of about 3.5 minutes for each grain. Identification of heavy minerals was based on their chemical composition. We developed a Microsoft® Excel® spread sheet input criteria of mineral identification using a typical range of chemical compositions for each mineral. The grains of 110 wt.% total were rejected. The criteria of mineral identification were revised through the comparison between mineral identification by optical microscopy and chemical compositions of grains classified as "unknown minerals". Provenance rocks can be identified based on abundance ratio of identified minerals. If no significant difference of the abundance ratio was found among source rocks, chemical composition of specific minerals was used as another index. This method was applied to the sediments of some regions in Japan where provenance rocks had lithological variations but similar formation ages. Consequently, the provenance rocks were identified based on chemical compositions of heavy minerals resistant to

  11. Variability in growth of Vachellia nilotica provenances tested in the Sudano-Sahelian zone of Niger

    DEFF Research Database (Denmark)

    Larwanou, Mahamane; Issa, Rabiou; Saadou, Mahamane

    2014-01-01

    A provenance trial of Vachellia nilotica (Acacia nilotica) was conducted in Niger in order to assess variability in growth among 10 provenances from Africa (subsp. adstringens from Niger, Senegal and Cameroun) and outside the continent (subsp. indica from Pakistan and Yemen). Tree height, diameter...... at breast height and crown diameter were measured 15 years after trial establishment. Comparison of blocks located at slightly different elevation showed that trees had better survival and growth at the lower sites. The African provenances had better survival and total basal area than provenances from Yemen...

  12. Study on the provenance of ancient porcelain excavated in Maojiawan ruin by WDXRF analysis

    International Nuclear Information System (INIS)

    Xie Guoxi

    2007-01-01

    In order to determine the provenance of two different kinds of ancient celadons which were excavated in Maojiawan ruin located in Beijing of China and named FLQ (imitated celadon) and WLNQ which is celadon outside and blue-white inside, ten components of each sample's body and glaze were measured by the wave length dispersive X-ray fluorescence (WDXRF) analysis. Multivariates statistical analysis was used to analyze and compare the experiment data with those of LQY (ancient celadon) made in Zhejiang and ancient Jingdezhen porcelain (JDZ) made in Jingdezhen. The results show that the two different kinds of ancient celadons have the same provenance as JDZ, that is, they were produced in Jingdezhen. (authors)

  13. Preliminary Study on the Provenance Interpretation of Obsidian Artifacts using Neutron Activation Analysis

    Energy Technology Data Exchange (ETDEWEB)

    Jin, Mi Eun; Jwa, Yong Joo [Gyeongsang National University, Jinju (Korea, Republic of); Sun, Gwang Min; Baek, Ha Ni; Moon, Jong Hwa; Chung, Yong Sam [KAERI, Daejeon (Korea, Republic of)

    2016-05-15

    In the case that the obsidian artifacts are treated as a prehistoric cultural property, we cannot analyze them using destructive analytical methods. In this study, we compared geochemical data obtained by NAA with that by the other method, and examined the applicability of the NAA method to interpret the provenance of the obsidian artifacts. Both the NAA and the LA-ICP-MS data show a general similarity in elemental variation. In particular, it is possible to distinguish Baekdusan obsidians from Kyushu obsidians. This kind of contrast between the Baekdusan and the Kyushu obsidians would reflect the different magma composition at the different tectonic and geologic settings. In general the geochemical composition of obsidian is closely related to the accompanied volcanic rocks. For more detailed estimation of obsidian provenance, we should use the geochemical compositions of obsidians as well as volcanic rocks.

  14. A Structured Review and Classification of Demolding Issues and Proven Solutions

    DEFF Research Database (Denmark)

    Delaney, K. D.; Bissacco, G.; Kennedy, D.

    2012-01-01

    The demolding of replicated parts can result in damage to both the replication tooling and finished parts and is a particular problem for the replication of smaller parts which can be quite fragile. Various techniques have been proposed in the literature to solve such problems by reducing....... Such a rationalization of existing knowledge will enable replication tool developers to systematically select and apply proven solutions to solve, and ultimately prevent, demolding problems....... the overall demolding force. This paper presents the challenge of demolding replicated parts and reviews the proven solutions from the literature which have been developed. A summary chart of these solutions is presented which may be used to implement plans to solve demolding problems with replicated parts...

  15. Study of provenance character on ancient porcelain of Yue Kiln at Silongkou with NAA

    International Nuclear Information System (INIS)

    Jihao Zhu; Songlin Feng; Dongyu Fan; Xiangqian Feng; Qing Xu; Yueming Shen; Zhenxi Zhuo; Wenjiang Zhang

    2007-01-01

    Chemical composition is an important information of studying the provenance character of ancient pottery and porcelain. The ancient celadon samples produced in Later Tang (850-907 A.D.) to Former Southern Song (1127-1279 A.D.) have been analyzed with NAA. Its provenance characteristic was compared with that of Hongzhou Kiln of Jiangxi Province and Yaozhou Kiln of Shanxi Province in this paper. The experimental data were studied with statistic methods. The results indicated that the chemical compositions of ancient porcelain body samples made in three kilns were different. The difference is able to be identified. The porcelain body materials of both Silongkou Yue Kiln and Hongzhou Kiln were similar. The samples of Yaozhou kiln in north of China existed obvious difference. (author)

  16. The fingerprint element analysis on provenance of ancient chinese Jun porcelain

    International Nuclear Information System (INIS)

    Gao Zhengyao; Chen Songhua; Wang Jie; Huang Zhongxiang; Jia Xiuqin; Han Song

    1997-01-01

    Forty-three samples of ancient Jun porcelains and so on were chosen. Neutron activation analysis (NAA) was used to measure the 36 trace elements in every sample. Seven elements were chosen as the 'fingerprint elements'. The provenance of the glazes and bodies of ancient Chinese Jun porcelain were investigated by the fingerprint element analysis method. The result shows that although the ancient Chinese Jun porcelain samples have been leapt over six hundred years, and glaze colors are utterly different and are from many different kilns, there are long term, stable and same mainly raw material source. The near provenance relation between ancient Jun porcelain and ancient Ru porcelain is preliminarily analyzed. A few modern Jun porcelains approximate from ancient Jun porcelains, the majority become estranged from ancient Jun porcelain

  17. Neutron activation analysis of bulk samples from Chinese ancient porcelain to provenance research

    International Nuclear Information System (INIS)

    Jian Zhu; Wentao Hao; Jianming Zhen; Tongxiu Zhen; Glascock, M.D.

    2013-01-01

    Neutron activation analysis (NAA) is an important technique to determine the provenance of ancient ceramics. The most common technique used for preparing ancient samples for NAA is to grind them into a powder and then encapsulate them before neutron irradiation. Unfortunately, ceramic materials are typically very hard making it a challenge to grind them into a powder. In this study we utilize bulk porcelain samples cut from ancient shards. The bulk samples are irradiated by neutrons alongside samples that have been conventionally ground into a powder. The NAA for both the bulk samples and powders are compared and shown to provide equivalent information regarding their chemical composition. Also, the multivariate statistical have been employed to the analysis data for check the consistency. The findings suggest that NAA results are less dependent on the state of the porcelain sample, and thus bulk samples cut from shards may be used to effectively determine their provenance. (author)

  18. The provenance study of Chinese ancient color glaze from Shanxi by INAA and factor analysis

    International Nuclear Information System (INIS)

    Cheng, L.; Ding, X.L.; Feng, S.L.; Feng, X.Q.; Lu, Z.R.

    2005-01-01

    This paper reports the results of the provenance study of Chinese ancient color glaze in Shanxi. The minor and trace elements of body of color glaze in different dynasty from Xiyue temper kiln and that of Lidipo kiln in Ming Dynasty determined by INAA, some of ancient porcelain from Lidipo kiln were measured, also. The factor analysis showed that provenances of the ancient color glazes from Xiyue Temple that were produced during Song Dynasty to the early Qing Dynasty were in the place of the Xiyue kiln, and body material of ancient color have little been changed, on the other hand, that of Later Qing Dynasty were-produced from Lidipo kiln. Different color glazes were measured by SRXRF and it proved the colored elements were Fe and Cu.

  19. Provenance and composition study on Terengganu inscribed stone using in-situ nuclear technology

    International Nuclear Information System (INIS)

    Jaafar Abdullah; Roslan Yahya; Hearie Hassan; Engku Mohd Fahmi Engku Chik; Mohamad Rabaie Shari; Airwan Affendi Mahmood; Abdul Quddoss Abu Bakar; Ainul Mardhiah Terry

    2012-01-01

    This paper focused on the analysis of trace elements and provenance study of the Inscribed Stone of Terengganu (BBPT) using Neutron-induced Prompt Gamma-Ray Techniques (NIPGAT). In this study, portable NIPGAT system was designed and developed by using volume-based measurement. It is a nondestructive testing technique for the samples. This system uses low activity of isotopic neutron radioactive source from californium-252 (Cf-252) as an irradiation source. Gamma ray spectroscopy as well as specialized computer software has been utilized to conduct the research. The study has determined that the stone was a dolerite stone based on the composition of the stone elements. Although most of the scientific data for this study have been collected, this project is still running to complete the scope of provenance study. (author)

  20. Provenance of pottery determined by soil physicochemical and chemometric methods: A case study from Frederiksgave, Ghana

    DEFF Research Database (Denmark)

    Rasmussen, Lars Holm; Bredwa-Mensah, Y.; Borggaard, Ole K.

    2009-01-01

    Frederiksgave, together with potsherds from two likely production sites at Ga and Dangme Shai, were investigated by visual inspection, total element analysis and X-ray diffraction and the results analyzed by principal component analysis (PCA) and cluster analysis. The investigation clearly showed...... that the Frederiksgave pots were not locally produced but came from other production sites indicating trading interaction between the plantation and surrounding settlements. One sample undoubtedly originated from Dangme Shai and another one must have been produced at a third (unknown) site. The provenance...... of the remaining samples is uncertain, but possibly three of them came from Ga and maybe one from Dangme Shai. Ill-defined compositional variation at Dangme Shai and Ga sites is thought to be the main reason for the observed difficulties in tracing the precise provenance of the Frederiksgave samples....

  1. BioQ: tracing experimental origins in public genomic databases using a novel data provenance model.

    Science.gov (United States)

    Saccone, Scott F; Quan, Jiaxi; Jones, Peter L

    2012-04-15

    Public genomic databases, which are often used to guide genetic studies of human disease, are now being applied to genomic medicine through in silico integrative genomics. These databases, however, often lack tools for systematically determining the experimental origins of the data. We introduce a new data provenance model that we have implemented in a public web application, BioQ, for assessing the reliability of the data by systematically tracing its experimental origins to the original subjects and biologics. BioQ allows investigators to both visualize data provenance as well as explore individual elements of experimental process flow using precise tools for detailed data exploration and documentation. It includes a number of human genetic variation databases such as the HapMap and 1000 Genomes projects. BioQ is freely available to the public at http://bioq.saclab.net.

  2. Two-way digital communications

    Science.gov (United States)

    Glenn, William E.; Daly, Ed

    1996-03-01

    The communications industry has been rapidly converting from analog to digital communications for audio, video, and data. The initial applications have been concentrating on point-to-multipoint transmission. Currently, a new revolution is occurring in which two-way point-to-point transmission is a rapidly growing market. The system designs for video compression developed for point-to-multipoint transmission are unsuitable for this new market as well as for satellite based video encoding. A new system developed by the Space Communications Technology Center has been designed to address both of these newer applications. An update on the system performance and design will be given.

  3. Hydrogen: energy transition under way

    International Nuclear Information System (INIS)

    Franc, Pierre-Etienne; Mateo, Pascal

    2015-01-01

    Written by a representative of Air Liquide with the help of a free lance journalist, this book proposes an overview of the technological developments for the use of hydrogen as a clean energy with its ability to store primary energy (notably that produced by renewable sources), and its capacity of energy restitution in combination with a fuel cell with many different applications (notably mobility-related applications). The authors outline that these developments are very important in a context of energy transition. They also outline what is left to be done, notably economically and financially, for hydrogen to play its role in the energy revolution which is now under way

  4. Implementing New Ways of Working

    DEFF Research Database (Denmark)

    Granlien, Maren Sander; Hertzum, Morten

    2009-01-01

    Successful deployment of information technology (IT) involves implementation of new ways of working. Under-recognition of this organizational element of implementation entails considerable risk of not attaining the benefits that motivated deployment, yet knowledge of how to work systematically...... were devised and performed as part of the study, significantly lowered the number of records that violated the procedure. This positive effect was, however, not achieved until multiple interventions had been employed, and there is some indication that the effect may be wearing off after...... the interventions have ended. We discuss the implications of these results for efforts to work systematically with the organizational implementation of IT systems....

  5. Botanical Provenance of Traditional Medicines From Carpathian Mountains at the Ukrainian-Polish Border

    OpenAIRE

    Weronika Kozlowska; Charles Wagner; Charles Wagner; Erin M. Moore; Erin M. Moore; Adam Matkowski; Slavko Komarnytsky; Slavko Komarnytsky

    2018-01-01

    Plants were an essential part of foraging for food and health, and for centuries remained the only medicines available to people from the remote mountain regions. Their correct botanical provenance is an essential basis for understanding the ethnic cultures, as well as for chemical identification of the novel bioactive molecules with therapeutic effects. This work describes the use of herbal medicines in the Beskid mountain ranges located south of Krakow and Lviv, two influential medieval cen...

  6. Provenance and evolution of miocene turbidite sedimentation in the central Apennines, Italy

    Science.gov (United States)

    Chiocchini, Ugo; Cipriani, Nicola

    1992-05-01

    A study of the siliciclastic detritus within the calcareous Miocene turbidite sandstones of the central Apennines has elucidated the provenance of these sandstones. Three ratios: Q/(Q+F), K/F, and Mc/M, have been used and binary correlations of these parameters show that: (1) the sandstones of the Marnoso-Arenacea are characterized by a northern Alpine supply, mainly derived from metamorphic rocks and subordinately from granitic rocks; (2) a secondary supply of western provenance, interbedded within the Marnoso-Arenacea, shows a typical arkosic composition and suggests that granitic rocks of Alpine-type were associated with the Ligurides; (3) the Urbania and Serraspinosa sandstones consist of detritus derived from sources almost identical to those supplying the Marnoso-Arenacea; (4) all the sandstones of the remaining central Apennine basins are characterized by a siliciclastic supply similar to the arkosic one; the rare carbonate fragments can be referred to the Apennine units. The continuity of the Alpine are in the Tyrrhenian area strongly suggests a connection between the western crystalline units and turbidite sedimentation in the basins examined. The crystalline units are associated with a segment of the Alpine chain tectonically linked to the Liguride nappes (Apennine source areas) during the eastwards migration of the Apennines deformation. The crystalline units were gradually eroded during the Burdigalian to Early Pliocene interval when the Laga basin was completely filled. Currently the term "Alpine" is used as synonymous with northern provenance. However, a detailed study carried out over ten years, revealed a western Alpine supply associated with an Apennine source area; we therefore suggest that it is necessary to distinguish a northern Alpine provenance from a western Alpine supply.

  7. A Proven Method for Meeting Export Control Objectives in Postal and Shipping Sectors

    Science.gov (United States)

    2015-02-01

    A Proven Method for Meeting Export Control Objectives in Postal and Shipping Sectors Gregory Crabb, U.S. Postal Inspection Service Julia H...mail fraud, mail theft, identity theft, child exploitation, and prohibited mailings such as bombs and biological and chemical threats...April 2012. http://resources.sei.cmu.edu/library/asset-view.cfm?assetid=10085 [Allen 2014a] Allen, Julia H., Crabb, Gregory; Curtis, Pamela D

  8. EPR OF Mn2+ IMPURITIES IN CALCITE: A DETAILED STUDY PERTINENT TO MARBLE PROVENANCE DETERMINATION

    DEFF Research Database (Denmark)

    Weihe, H.; Piligkos, S.; Barra, A.L.

    2009-01-01

    We demonstrate that the electron paramagnetic resonance spectrum of Mn2+ impurities in calcite, and therefore also in marble, may be accurately reproduced by a traditional spin Hamiltonian formalism. The success of such a treatment, however, very much depends on the spin Hamiltonian parameters...... having the correct signs as well as magnitudes. We present data that determine the sign of the axial anisotropy parameter and thereby facilitate future quantum mechanical characterizations of marble electron paramagnetic resonance spectra that supplement provenance determination....

  9. Analytic Provenance Datasets: A Data Repository of Human Analysis Activity and Interaction Logs

    OpenAIRE

    Mohseni, Sina; Pachuilo, Andrew; Nirjhar, Ehsanul Haque; Linder, Rhema; Pena, Alyssa; Ragan, Eric D.

    2018-01-01

    We present an analytic provenance data repository that can be used to study human analysis activity, thought processes, and software interaction with visual analysis tools during exploratory data analysis. We conducted a series of user studies involving exploratory data analysis scenario with textual and cyber security data. Interactions logs, think-alouds, videos and all coded data in this study are available online for research purposes. Analysis sessions are segmented in multiple sub-task ...

  10. Provenance and use wears of Pre-Hispanic obsidian scrapers from Metztitlan, Hidalgo, Mexico

    International Nuclear Information System (INIS)

    Mandujano, C.; Elizalde, S.; Cassiano, G.; Soto, D.

    2002-01-01

    The research was performed with archaeological obsidian scrapers, collected at the Metztitlan area, Hidalgo, Mexico. The provenance of the raw material was determined by NAA. SEM technique was applied to identify use wears on pre-Hispanic tools and experimental replicas. The Metztitlan scrapers made of the obsidian of Zacualtipan, Hidalgo, Mexico, were probably used for Agave juice extraction in the Late Postclassical period. (author)

  11. A provenance study of iron archaeological artefacts by Inductively Coupled Plasma-Mass Spectrometry multi-elemental analysis

    International Nuclear Information System (INIS)

    Desaulty, Anne-Marie; Mariet, Clarisse; Dillmann, Philippe; Joron, Jean Louis; Fluzin, Philippe

    2008-01-01

    Raw materials and wastes (i.e. ore, slag and laitier) from ironmaking archaeological sites have been analyzed in order to understand the behavior of the trace elements in the ancient ironmaking processes and to find the significant-most elements to characterize an iron making region. The ICP-MS (Inductively Coupled Plasma Mass Spectrometry) appears to be an excellent technique for this type of studies. The comparison between the ICP-MS results obtained with the Standard Addition method and the INAA (Instrumental Neutron Activation Analyses) results proved that Sc, Co, (Ni), Rb, Cs, Ba, La, Ce, Sm, Eu, Yb, Hf, Th, U contents in the ores, slag and laitiers, and Co and Ni contents in the cast iron can be successfully determined by ICP-MS after wet acid digestion (low detection limits, good sensitivity and precision). By using significant trace element pairs (Yb/Ce, Ce/Th, La/Sc, U/Th, Nb/Y) present in the ores, laitiers and slag, it is possible to discriminate different French ironmaking regions as the Pays de Bray, Lorraine and Pays d'Ouche. These results open the way to further studies on the provenance of iron objects. The comparison between the ICP-MS results obtained with the Standard Calibration Curves method and the INAA results shows that matrices rich in iron, affect the ICP-MS analyses by suppressing the analytes signal. Further studies are necessary to improve understanding matrix effects

  12. Heavy mineral analysis for assessing the provenance of sandy sediment in the San Francisco Bay Coastal System

    Science.gov (United States)

    Wong, Florence L.; Woodrow, Donald L.; McGann, Mary

    2013-01-01

    Heavy or high-specific gravity minerals make up a small but diagnostic component of sediment that is well suited for determining the provenance and distribution of sediment transported through estuarine and coastal systems worldwide. By this means, we see that surficial sand-sized sediment in the San Francisco Bay Coastal System comes primarily from the Sierra Nevada and associated terranes by way of the Sacramento and San Joaquin Rivers and is transported with little dilution through the San Francisco Bay and out the Golden Gate. Heavy minerals document a slight change from the strictly Sierran-Sacramento mineralogy at the confluence of the two rivers to a composition that includes minor amounts of chert and other Franciscan Complex components west of Carquinez Strait. Between Carquinez Strait and the San Francisco Bar, Sierran sediment is intermingled with Franciscan-modified Sierran sediment. The latter continues out the Gate and turns southward towards beaches of the San Francisco Peninsula. The Sierran sediment also fans out from the San Francisco Bar to merge with a Sierran province on the shelf in the Gulf of the Farallones. Beach-sand sized sediment from the Russian River is transported southward to Point Reyes where it spreads out to define a Franciscan sediment province on the shelf, but does not continue southward to contribute to the sediment in the Golden Gate area.

  13. Ways optimization physical activity students

    Directory of Open Access Journals (Sweden)

    Vasilij Sutula

    2014-12-01

    Full Text Available Purpose: on the basis of the analysis of results of poll of students, first, to define structure and the importance of the factors influencing formation of motivation at them to sports and sports activity, secondly, to allocate possible subjects for extension of the maintenance of theoretical and methodical-practical components of sports formation of student's youth. Material and Methods: the study involved students of first and second courses of the Institute for training bodies and the Faculty of Law of the National University №9 Yaroslav the Wise and the students of the Kyiv National University of Culture and Arts and Zhytomyr State University named after Ivan Franko. Results: it is established that during training at national law university interests of students concerning factors which motivate them to sports and sports activity significantly change. The analyses data testify that a key factor which prevents students to be engaged in sports and sports activity, lack of free time is. It is proved that students consider necessary to receive information on the physical state. Conclusions: results of research allowed allocating the most significant factors which motivate students to be engaged in sports and sports activity. It is established subjects of theoretical and methodical and practical components of sports education which interest students of NLU and KNUCA and ZSU. It is shown that for students of Law University of importance topic of theoretical and methodological and practical components of physical education strongly depends on the year of their training.

  14. Transferability and Commercialization of Patent Rights: Economic and Practical Perspectives

    Directory of Open Access Journals (Sweden)

    Haim V. Levy

    2012-01-01

    Full Text Available The transformation of innovation into commercial value depends primarily on appropriate protection of the intellectual property, usually by patents, and efficient pathway(s of its transferability as well as the transfer of the protected knowledge. The key features of patents, from an economic perspective, are that they encompass new knowledge and confer monopoly rights to the owner. The exclusiveness of patent rights is generally conceived as a necessary mechanism to ensure further innovation, stimulate advanced research and facilitate efficient market transactions with patent rights. The patent holder can transfer the technology embodied by way of granting to others a license to use the patented invention in return for a share of the revenues, usually royalties. Patent rights transferability has been proven to be efficient and profitable to the industry as well as beneficial to the welfare of society. The economic and practical perspectives of the transferability and commercialization of patent rights are discussed.

  15. Performance of Acacia tortilis, Prosopis juliflora and Casuarina equisetifolia provenances in soils low in phosphorus

    International Nuclear Information System (INIS)

    Nyamai, D.O.; Juma, P.O.

    1996-01-01

    Acacia tortilis, Prosopis juliflora and Casuarina equisetifolia provenances were screened to determine their potential for adaptability under P limiting conditions as a strategy to exploit genotypic differences in terms of utilization and uptake efficiencies. The experiment was conducted in the greenhouse at the Kenya Forestry Research Institute using soils taken from the field which are critically low in available P. The experimental treatments comprised of P application at 0 and 60 Kg P 2 O 5 /ha for 11 provenances of Acacia, 6 Prosopis and 4 Casuarina spp. Trait for adaptability to P deficiency was determined by measuring the growth performance, P uptake and utilization efficiencies at zero and moderate application of P. The results indicated considerable differences in the growth performance and phosphorus use efficiency (PUE). Acacia provenances showed the highest PUE compared with Prosopis and Casuarina spp although this was not reflected in the total dry matter yield. However, it was observed that P application resulted in an increase in shoot dry matter, height, root collar diameter and root dry matter in the case of Casuarina. Similarly, the highest total P uptake was obtained in Casuarina and Prosopis spp. The results further indicated that P application probably contributed to the reduction in root dry matter and root: shoot ratios of Acacia and Prosopis but not Casuarina spp. (author). 15 refs, 1 fig., 2 tabs

  16. Performance of Acacia tortilis, Prosopis juliflora and Casuarina equisetifolia provenances in soils low in phosphorus

    Energy Technology Data Exchange (ETDEWEB)

    Nyamai, D O; Juma, P O [Kenya Forestry Research Inst., Nairobi (Kenya). Agroforestry Research Programme

    1996-07-01

    Acacia tortilis, Prosopis juliflora and Casuarina equisetifolia provenances were screened to determine their potential for adaptability under P limiting conditions as a strategy to exploit genotypic differences in terms of utilization and uptake efficiencies. The experiment was conducted in the greenhouse at the Kenya Forestry Research Institute using soils taken from the field which are critically low in available P. The experimental treatments comprised of P application at 0 and 60 Kg P{sub 2}O{sub 5}/ha for 11 provenances of Acacia, 6 Prosopis and 4 Casuarina spp. Trait for adaptability to P deficiency was determined by measuring the growth performance, P uptake and utilization efficiencies at zero and moderate application of P. The results indicated considerable differences in the growth performance and phosphorus use efficiency (PUE). Acacia provenances showed the highest PUE compared with Prosopis and Casuarina spp although this was not reflected in the total dry matter yield. However, it was observed that P application resulted in an increase in shoot dry matter, height, root collar diameter and root dry matter in the case of Casuarina. Similarly, the highest total P uptake was obtained in Casuarina and Prosopis spp. The results further indicated that P application probably contributed to the reduction in root dry matter and root: shoot ratios of Acacia and Prosopis but not Casuarina spp. (author). 15 refs, 1 fig., 2 tabs.

  17. Providing Global Change Information for Decision-Making: Capturing and Presenting Provenance

    Science.gov (United States)

    Ma, Xiaogang; Fox, Peter; Tilmes, Curt; Jacobs, Katherine; Waple, Anne

    2014-01-01

    Global change information demands access to data sources and well-documented provenance to provide evidence needed to build confidence in scientific conclusions and, in specific applications, to ensure the information's suitability for use in decision-making. A new generation of Web technology, the Semantic Web, provides tools for that purpose. The topic of global change covers changes in the global environment (including alterations in climate, land productivity, oceans or other water resources, atmospheric composition and or chemistry, and ecological systems) that may alter the capacity of the Earth to sustain life and support human systems. Data and findings associated with global change research are of great public, government, and academic concern and are used in policy and decision-making, which makes the provenance of global change information especially important. In addition, since different types of decisions benefit from different types of information, understanding how to capture and present the provenance of global change information is becoming more of an imperative in adaptive planning.

  18. The impact of oil price on additions to US proven reserves

    International Nuclear Information System (INIS)

    Farzin, Y.H.

    2001-01-01

    Departing from Hotelling's assumption of fixed and known reserves, this paper develops an economic model of additions to proven reserves that explicitly incorporates the effects of expected resource price, cumulative reserves development, and technological progress on reserve additions. The model treats additions to proven oil reserves as output of a production process in which drilling wells is a primary input to transform some of oil-in-place into the economic category of proven reserves. Application of the model to US data for the 1950-1995 period provides strong statistical support for the existence of all the three salient effects. We obtain an estimate of the price elasticity of reserve additions (absent from previous studies) which, although statistically highly significant, is rather small. Using this price elasticity estimate, it is shown that if in the face of steady economic growth, and hence, oil consumption, US oil import dependence is to be kept from rising in the future, ceteris paribus, a steady oil price increase in the range of 1.5-4.5% a year is essential

  19. Foucault's Three Ways of Decentering the State

    DEFF Research Database (Denmark)

    Villadsen, Kaspar

    no interior” (Foucault, 2008: 90). In the stream of scholarship inspired by Foucault it has become an interpretative orthodoxy that the state should be viewed as decentered, without a unifying center, resting upon networks of mobile power relations. In this way, political decision making is delocalized......It is well known that Michel Foucault challenged the centrality of the state, advancing a view of the state as ‘decentered’. He said: “The state has no heart, as we well know, but not just in the sense that it has no feelings, either good or bad, but it has no heart in the sense that it has......, and sovereignty is dissolved in dispersed and mundane practices. Here, I wish to examine the three routes by which Foucault during the 1970s reached his renowned ‘decentered’ approach to the state. These routes never arrived at any ultimate conception of the state, since they were experimental explorations...

  20. Costing Practices in Healthcare

    DEFF Research Database (Denmark)

    Chapman, Christopher; Kern, Anja; Laguecir, Aziza

    2014-01-01

    .e., Diagnosis Related Group (DRG) systems, and costing practices. DRG-based payment systems strongly influence costing practices in multiple ways. In particular, setting DRG tariffs requires highly standardized costing practices linked with specific skill sets from management accountants and brings other...... jurisdictions (e.g., clinical coding) to bear on costing practice. These factors contribute to the fragmentation of the jurisdiction of management accounting.......The rising cost of healthcare is a globally pressing concern. This makes detailed attention to the way in which costing is carried out of central importance. This article offers a framework for considering the interdependencies between a dominant element of the contemporary healthcare context, i...

  1. Looking at Things in New Ways (Editorial

    Directory of Open Access Journals (Sweden)

    Denise Koufogiannakis

    2010-03-01

    Full Text Available Welcome to the first issue of our 5th volume of Evidence Based Library and Information Practice. And what an issue it is! We are very pleased to showcase the keynote addresses from the 5th International Evidence Based Library and Information Practice (EBLIP5 conference that took place in Stockholm, Sweden in July 2009. Andrew Booth, who was Chair of the International Program Committee for the conference, kindly agreed to take on a guest editorial role in gathering these keynote presentations together. I believe it is the first time the EBLIP community has been able to have the keynote papers from an EBLIP conference gathered in this way. Reading these commentaries will give you a true sense of the themes and questions that were woven throughout the conference and will give you lots to think about. For a fuller description and to put this Feature section in context, please be sure to read Andrew’s editorial at the beginning of the section.As we begin our fifth year of publication, submissions of original research articles continue to grow. In this issue we have five original articles on topics ranging from information literacy instruction to cataloguing of e‐books. Two articles look at using communities of practice in the support of evidence based practice; clearly this is an area of emerging research within EBLIP that readers will benefit from learning more about. One of these articles, by Urquhart, Brice, Cooper, Spink, and Thomas, won the Best Oral Presentation award at the EBLIP5 conference.In addition to the original research articles, we also have seven evidence summaries, covering topics such as unionization, information seeking behaviour, and the LIS blogosphere. The EBL101 column tackles critical appraisal, a daunting task that will not seem quite so scary once you’ve read the column! As well, in the Commentary section, Jessie McGowan and colleagues have contributed a checklist for the peer review of electronic search strategies

  2. Fifty years in fusion and the way forward

    International Nuclear Information System (INIS)

    Jacquinot, J.

    2010-01-01

    This particular 'Fusion Pioneers Memorial lecture' was given 50 years after the first historical FEC conference in 1958. It was a unique occasion to perform a global reflection on thermonuclear fusion which is summarized in this paper. We first consider the case for fusion energy then move on to the scientific achievements during the past five decades. Finally, the lessons drawn from the past give a framework to consider the challenges ahead of us. The 1958 pioneers had the vision of the vital importance of international collaboration to succeed in this unique endeavour. Fifty years later, this vision has amply proven its worth. Looking at the way forward, this vision constitutes a strong basis to harness fusion energy in the decades to come.

  3. Influence of tree provenance on biogenic VOC emissions of Scots pine (Pinus sylvestris) stumps

    Science.gov (United States)

    Kivimäenpää, Minna; Magsarjav, Narantsetseg; Ghimire, Rajendra; Markkanen, Juha-Matti; Heijari, Juha; Vuorinen, Martti; Holopainen, Jarmo K.

    2012-12-01

    Resin-storing plant species such as conifer trees can release substantial amounts of volatile organic compounds (VOCs) into the atmosphere under stress circumstances that cause resin flow. Wounding can be induced by animals, pathogens, wind or direct mechanical damage e.g. during harvesting. In atmospheric modelling of biogenic VOCs, actively growing vegetation has been mostly considered as the source of emissions. Root systems and stumps of resin-storing conifer trees could constitute a significant store of resin after tree cutting. Therefore, we assessed the VOC emission rates from the cut surface of Scots pine stumps and estimated the average emission rates for an area with a density of 2000 stumps per ha. The experiment was conducted with trees of one Estonian and three Finnish Scots pine provenances covering a 1200 km gradient at a common garden established in central Finland in 1991. VOC emissions were dominated by monoterpenes and less than 0.1% of the total emission was sesquiterpenes. α-Pinene (7-92% of the total emissions) and 3-carene (0-76% of the total emissions) were the dominant monoterpenes. Proportions of α-pinene and camphene were significantly lower and proportions of 3-carene, sabinene, γ-terpinene and terpinolene higher in the southernmost Saaremaa provenance compared to the other provenances. Total terpene emission rates (standardised to +20 °C) from stumps varied from 27 to 1582 mg h-1 m-2 when measured within 2-3 h after tree cutting. Emission rates decreased rapidly to between 2 and 79 mg h-1 m-2 at 50 days after cutting. The estimated daily terpene emission rates on a hectare basis from freshly cut stumps at a cut tree density of 2000 per ha varied depending on provenance. Estimated emission ranges were 100-710 g ha-1 d-1 and 137-970 g ha-1 d-1 in 40 and in 60 year-old forest stands, respectively. Our result suggests that emission directly from stump surfaces could be a significant source of monoterpene emissions for a few weeks after

  4. Features of Scots pine radial growth in conditions of provenance trial.

    Science.gov (United States)

    Kuzmin, Sergey; Kuzmina, Nina

    2013-04-01

    Provenance trial of Scots pine in Boguchany forestry of Krasnoyarsk krai is conducted on two different soils - dark-grey loam forest soil and sod-podzol sandy soil. Complex of negative factors for plant growth and development appears in dry conditions of sandy soil. It could results in decrease of resistance to diseases. Sandy soils in different climatic zones have such common traits as low absorbing capacity, poorness of elemental nutrition, low microbiological activity and moisture capacity, very high water permeability. But Scots pine trees growing in such conditions could have certain advantages and perspectives of use. In the scope of climate change (global warming) the study of Scots pine growth on sandy soil become urgent because of more frequent appearance of dry seasons. Purpose of the work is revelation of radial growth features of Scots pine with different origin in dry conditions of sandy soil and assessment of external factors influence. The main feature of radial growth of majority of studied pine provenances in conditions of sandy soil is presence of significant variation of increment with distinct decline in 25-years old with loss of tree rings in a number of cases. The reason of it is complex of factors: deficit of June precipitation and next following outbreak of fungal disease. Found «frost rings» for all trees of studied clymatypes in 1992 are the consequence of temperature decline from May 21 to June 2 - from 23 down to 2 degree Celsius. Perspective climatypes with biggest radial increments and least sensitivity to fungal disease were revealed. Eniseysk and Vikhorevka (from Krasnoyarsk krai and Irkutsk oblast)provenances of pine have the biggest radial increments, the least sensitivity to Cenangium dieback and smallest increments decline. These climatypes are in the group of perspective provenances and in present time they are recommended for wide trial in the region for future use in plantation forest growing. Kandalaksha (Murmansk oblast

  5. A systems change: leading the way to meeting health needs.

    Science.gov (United States)

    Deisher, Mirella

    2013-01-01

    Demonstrating the efficacy of our practice requires a paradigm shift. Becoming an effective leader and clinician can facilitate opportunities for program development and clinical research. The use of strategic planning strategies, such as needs assessment and SWOT analysis, can help lead the way to such change. The following illustrates the use of strategic planning to develop The Carpal and Cubital Tunnel Syndrome Program (CCTSP) within a growing orthopedic practice. Copyright © 2013 Hanley & Belfus. Published by Elsevier Inc. All rights reserved.

  6. Musical Students’ Concert Practice

    Directory of Open Access Journals (Sweden)

    Aleksandr S. Plokhotnyuk

    2012-12-01

    Full Text Available . The article presents detailed analysis of performance training of future teachers of music at higher educational establishments and offers ways to overcome the problem of musical students’ concert practice organization.

  7. Two ways to support reflexivity

    DEFF Research Database (Denmark)

    Adriansen, Hanne Kirstine; Knudsen, Hanne

    2013-01-01

    A current challenge to public managers is the lack of a well-defined role. How can master’s programmes prepare managers to live up to an undefined function? In this paper we argue that the lack of role description enhances the need for reflexivity and show how it is done at Master in Educational...... Management (MEM). MEM provides the participating managers with a new language that can give them a critical distance to the overload of expectations they meet at work and MEM teaches the participants to translate this new language into practice. The pedagogy used for this is labelled ‘experimental management...

  8. Aligning Responsible Business Practices

    DEFF Research Database (Denmark)

    Weller, Angeli E.

    2017-01-01

    This article offers an in-depth case study of a global high tech manufacturer that aligned its ethics and compliance, corporate social responsibility, and sustainability practices. Few large companies organize their responsible business practices this way, despite conceptual relevance and calls t...... and managers interested in understanding how responsible business practices may be collectively organized.......This article offers an in-depth case study of a global high tech manufacturer that aligned its ethics and compliance, corporate social responsibility, and sustainability practices. Few large companies organize their responsible business practices this way, despite conceptual relevance and calls...... to manage them comprehensively. A communities of practice theoretical lens suggests that intentional effort would be needed to bridge meaning between the relevant managers and practices in order to achieve alignment. The findings call attention to the important role played by employees who broker...

  9. Nuclear energy: the way ahead

    International Nuclear Information System (INIS)

    Fells, I.

    1981-01-01

    A report is given on a conference held at the Ditchley Foundation, Oxfordshire, entitled 'Nuclear energy: safety, future development and alternative strategies'. Among items discussed were; the current situation, the safety and licensing of power reactors, transport and storage of spent fuel, performance considerations, plant size, costs, problems specific to nuclear power in developing countries, and political considerations. The paradox that despite escalating oil prices and increasing anxiety about the political stability of the Arab oil producers, the nuclear power programme of the developed non-communist world is still in the doldrums was examined and it was felt that the biggest task facing the nuclear power industry is one of educating public and politicians in such a way that a balanced critical approach to the risks and benefits of nuclear power replaces uninformed emotional response. (U.K.)

  10. One-way shared memory

    DEFF Research Database (Denmark)

    Schoeberl, Martin

    2018-01-01

    Standard multicore processors use the shared main memory via the on-chip caches for communication between cores. However, this form of communication has two limitations: (1) it is hardly time-predictable and therefore not a good solution for real-time systems and (2) this single shared memory...... is a bottleneck in the system. This paper presents a communication architecture for time-predictable multicore systems where core-local memories are distributed on the chip. A network-on-chip constantly copies data from a sender core-local memory to a receiver core-local memory. As this copying is performed...... in one direction we call this architecture a one-way shared memory. With the use of time-division multiplexing for the memory accesses and the network-on-chip routers we achieve a time-predictable solution where the communication latency and bandwidth can be bounded. An example architecture for a 3...

  11. The way of professional identity: gender features

    Directory of Open Access Journals (Sweden)

    N. O. Kodatska

    2017-03-01

    Full Text Available The mechanism of formation of the professional identity on the level of personality and during the further development of the individual has been described in the article. Main gender differences of the process of self-determination which is not limited only by the choice of profession, but continues during the professional development have been described. The concept of socialization as a process of identity formation in contemporary social conditions and career building process has been studied. This concept is a multifunctional social-psychological phenomenon. Moreover, it has been proven during the research that the problem of professional identity has very big practical importance as it is one of the key social, psychological and educational processes in human activity during a career building. Cultural, historical, political, legal, individual psychological and socio-demographic barriers to women’s professional realisation have been studied. The conclusions has been made that in order to maintain the gender parity in society, the opportunity to balance successfully between work and family responsibilities is extremely important both for women and men. It has been emphasized that support of equal rights and opportunities for both sexes requires special governmental mechanism. Basic gender features of a professional career have been revealed in the article and their impact on personal career has been analyzed. Also the features of the role in socialization and the formation of gender identity have been defined. In addition, the necessity to ensure equal opportunities for professional and individual self-determination regardless gender, age, nationality or social origin has been grounded. Also it has been noted that the introduction of gender parity in educational institutions and enterprises of all forms of ownership provides a number of advantages, among which the main are: improvement of the quality of selection for employment; provision

  12. Studies on 13C isotope discrimination for identifying tree provenances efficient in water use under water deficit conditions in Kenya

    International Nuclear Information System (INIS)

    Nyamai, D.O.; Juma, P.O.

    1996-01-01

    Screening for drought resistance traits was conducted in a semi-arid site in Machakos using 11 provenances of Acacia tortilis, 6 provenances of Prosopis juliflora and 4 provenances of Casuarina equisetifolia. Tolerance to drought was assessed by the 13 C isotope discrimination (Δ) technique as well as by determining the waster use efficiency (WUE). Measurements of dry matter and early growth performance were also taken as indicators of drought resistance. The results showed significant differences in the 13 C Isotope discrimination, water use efficiency and dry matter yields by the different provenances tested. Generally, the results indicated that there were significant linear negative relationships between 13 C discrimination with water use efficiency as well as dry matter yield. The results further showed highly significant positive relationship between dry matter yield and water use efficiency. Acacia tortilis provenances from middle East and neighbouring North Eastern Africa region appear to possess the greatest abilities for drought resistance in comparison with those from sub-saharan Africa as indicated by their 13 C Isotope discrimination levels, dry matter yield and water use efficiency. However, Acacia provenance from Israel had the highest drought resistance trail. Prosopis provenance from Costa Rica and Casuarina from Dakar region in Senegal also emerged as the best provenances in terms of drought tolerance as shown by the 13 C isotope discrimination and dry matter traits. (author). 8 refs, 4 figs, 3 tabs

  13. New ways of organizing product introductions.

    Science.gov (United States)

    Berglund, Martina; Harlin, Ulrika; Gustavsson, Maria; Säfsten, Kristina

    2012-01-01

    The aim of this paper is to describe and reflect on an interactive research approach used to address the challenges on how to improve product introductions, the part of the product realization process associated with the transfer of a product from product development to serial production. In the interactive research approach, research results as well as improvement of practice are given equal importance. The collaboration between researchers and practitioners therefore addresses both the focus and the process of the change. The approach includes four main iterative steps: 1) mapping/diagnosis, 2) feedback of results, 3) participation in development activities, and 4) follow-up/evaluation. The paper reports findings from interactive research in one company within office product industry and one company group, consisting of three company units within the engine industry. Preliminary findings indicate that the participating companies afterwards work in a more structured way with product introductions and that the employees have gained deeper knowledge about product introductions as well as experienced the advantages of working across functional boundaries. Furthermore, the interactive research approach is suitable to run projects from an ergonomics perspective as it focuses on developing both practice and theory, it is human-centered, and it emphasizes broad participation from practitioners.

  14. Radial variation of basic density and wood cells dimensions of Cariniana legalis (Mart. O. Kuntze depending on the provenance

    Directory of Open Access Journals (Sweden)

    Israel Luiz de Lima

    2011-12-01

    Full Text Available Provenance tests can provide information about the silvicultural behavior and wood quality for the exploration of variability and conservation of genetic material for future use. This study aims to investigate the effect of provenances on some wood properties of the Cariniana legalis. Seedlings of three provenances (Porto Ferreira, Piracicaba and Campinas were planted in Luiz Antonio-SP using randomized block design with six replicates. After 26 years of planting, eighteen trees, six of each provenance, were felled. The properties studied were basic density and the cellular dimensions. The results revealed that the basic density, fiber length, fiber wall thickness, vessel element length, vessel diameter, uniseriate ray height and width were influenced by the provenances. A good positive relationship was found among the fiber length, fiber wall thickness, vessel element length; vessel diameter and multiseriate ray height with radial position and a negative relation between vessel frequency with the radial position.

  15. Drought effects on root and needle terpenoid content of a coastal and an interior Douglas fir provenance.

    Science.gov (United States)

    Kleiber, Anita; Duan, Qiuxiao; Jansen, Kirstin; Verena Junker, Laura; Kammerer, Bernd; Rennenberg, Heinz; Ensminger, Ingo; Gessler, Arthur; Kreuzwieser, Jürgen

    2017-12-01

    Douglas fir (Pseudotsuga menziesii) is a conifer species that stores large amounts of terpenoids, mainly monoterpenoids in resin ducts of various tissues. The effects of drought on stored leaf terpenoid concentrations in trees are scarcely studied and published data are partially controversial, since reduced, unaffected or elevated terpenoid contents due to drought have been reported. Even less is known on the effect of drought on root terpenoids. In the present work, we investigated the effect of reduced water availability on the terpenoid content in roots and needles of Douglas fir seedlings. Two contrasting Douglas fir provenances were studied: an interior provenance (var. glauca) with assumed higher drought resistance, and a coastal provenance (var. menziesii) with assumed lower drought resistance. We tested the hypothesis that both provenances show specific patterns of stored terpenoids and that the patterns will change in response to drought in both, needles and roots. We further expected stronger changes in the less drought tolerant coastal provenance. For this purpose, we performed an experiment under controlled conditions, in which the trees were exposed to moderate and severe drought stress. According to our expectations, the study revealed clear provenance-specific terpenoid patterns in needles. However, such patterns were not detected in the roots. Drought slightly increased the needle terpenoid contents of the coastal but not of the interior provenance. We also observed increased terpenoid abundance mainly in roots of the moderately stressed coastal provenance. Overall, from the observed provenance-specific reactions with increased terpenoid levels in trees of the coastal origin in response to drought, we conclude on functions of terpenoids for abiotic stress tolerance that might be fulfilled by other, constitutively expressed mechanisms in drought-adapted interior provenances. © The Author 2017. Published by Oxford University Press. All rights

  16. WAYS HIERARCHY OF ACCOUNTING ESTIMATES

    Directory of Open Access Journals (Sweden)

    ŞERBAN CLAUDIU VALENTIN

    2015-03-01

    Full Text Available Based on one hand on the premise that the estimate is an approximate evaluation, completed with the fact that the term estimate is increasingly common and used by a variety of both theoretical and practical areas, particularly in situations where we can not decide ourselves with certainty, it must be said that, in fact, we are dealing with estimates and in our case with an accounting estimate. Completing on the other hand the idea above with the phrase "estimated value", which implies that we are dealing with a value obtained from an evaluation process, but its size is not exact but approximated, meaning is close to the actual size, it becomes obvious the neccessity to delimit the hierarchical relationship between evaluation / estimate while considering the context in which the evaluation activity is derulated at entity level.

  17. QEMSCAN+LA-ICP-MS: a 'big data' generator for sedimentary provenance analysis

    Science.gov (United States)

    Vermeesch, Pieter; Rittner, Martin; Garzanti, Eduardo

    2017-04-01

    Sedimentary provenance may be traced by 'fingerprinting' sediments with chemical, mineralogical or isotopic means. Normally, each of these provenance proxies is characterised on a separate aliquot of the same sample. For example, the chemical composition of the bulk sample may be analysed by X-ray fluorescence (XRF) on one aliquot, framework petrography on another, heavy mineral analysis on a density separate of a third split, and zircon U-Pb dating on a further density separate of the heavy mineral fraction. The labour intensity of this procedure holds back the widespread application of multi-method provenance studies. We here present a new method to solve this problem and avoid mineral separation by coupling a QEMSCAN electron microscope to an LA-ICP-MS instrument and thereby generate all four aforementioned provenance datasets as part of the same workflow. Given a polished hand specimen, a petrographic thin section, or a grain mount, the QEMSCAN+LA-ICP-MS method produces chemical and mineralogical maps from which the X-Y coordinates of the datable mineral are extracted. These coordinates are subsequently passed on to the laser ablation system for isotopic and, hence, geochronological analysis. In the process of finding all the zircons in a sediment grain mount, the QEMSCAN yields the compositional and mineralogical compositions as byproducts. We have applied the new QEMSCAN+LA-ICP-MS instrument suite to over 100 samples from three large sediment routing systems: (1) the Tigris-Euphrates river catchments and Rub' Al Khali desert in Arabia; (2) the Nile catchment in northeast Africa and (3) desert and beach sands between the Orange and Congo rivers in southwest Africa. These studies reveal (1) that Rub' Al Khali sand is predominantly derived from the Arabian Shield and not from Mesopotamia; (2) that the Blue Nile is the principal source of Nile sand; and (3) that Orange River sand is carried northward by longshore drift nearly 1,800km from South Africa to southern

  18. Mind, brain and body. Healing trauma: the way forward.

    Science.gov (United States)

    Wilkinson, Margaret

    2017-09-01

    The paper explores an interdisciplinary whole person approach to healing from trauma that conserves our rich inheritance from Jung but also takes on board insights from research in the areas of attachment, trauma and the neurobiology of emotion. It is now over 20 years since insights from neurobiology began to be used to inform clinical practice. The paper reviews key insights which have emerged, along with the ways they enable therapists to help mind, brain and body to heal and the ways in which they clarify why, in clinical practice, we do what we do. Traditionally the emphasis has been on words, interpretations, and meaning-making. Currently there is greater appreciation of the affective, relational, embodied aspects of therapeutic work and the way in which these relate to traumatic early interactive experience that is held outside of human awareness. The ways in which knowledge of particular systems of connectivity inform understanding of the whole mind-brain-body relationship are examined. The way forward for clinical practice to become more focused in order to help clients to heal in mind and body is reviewed. © 2017, The Society of Analytical Psychology.

  19. Challenges in Transitioning to an Agile Way of Working

    DEFF Research Database (Denmark)

    Hekkala, Riitta; Stein, Mari-Klara; Rossi, Matti

    2017-01-01

    This longitudinal study examined how an information systems development team transitioned to an agile way of working. We describe the main events of a large, inter-organizational project, where agile methods and practices were applied for the first time. The organizations involved had a long trad...

  20. 5 Ways to Beat Pre-performance Nerves

    Science.gov (United States)

    ... your body's way of helping you do your best. The "stress hormones" (like adrenaline) that your body produces at ... and practice. You'll look and feel your best if you get enough sleep and eat healthy ... from getting out of control. Reviewed by: ...

  1. Clinical characteristics of biopsy-proven allergic bronchopulmonary mycosis: variety in causative fungi and laboratory findings.

    Science.gov (United States)

    Ishiguro, Takashi; Takayanagi, Noboru; Kagiyama, Naho; Shimizu, Yoshihiko; Yanagisawa, Tsutomu; Sugita, Yutaka

    2014-01-01

    The diagnosis of allergic bronchopulmonary mycosis (ABPM) has traditionally relied widely on Rosenberg's criteria, which emphasize immunologic responses while overlooking the investigation of mucous plugs as a primary criterion. Therefore, the characteristics of biopsy-proven ABPM require further elucidation. The aim of this study was to analyze the clinical characteristics of biopsy-proven ABPM and address whether full compliance with clinical criteria, such as the presence of asthma, and certain laboratory findings is necessary to establish a diagnosis of ABPM. We retrospectively analyzed 17 patients with biopsy-proven ABPM focusing on causative fungi and laboratory findings. Causative fungi included Aspergillus sp. in seven patients, Schizophyllum commune in four patients, Penicillium sp. in two patients and unknown in five patients. Bronchial asthma was observed in 10 patients, eosinophilia was observed in 10 patients and an increased serum immunoglobulin (Ig) E level was observed in 14 of the 17 patients. IgG for Aspergillus sp. was positive in six of the seven patients with ABPM due to Aspergillus and turned positive in the remaining patient during follow-up. Technological limitations prevented the measurement of specific IgE for S. commune and IgG for S. commune and Penicillium sp. in most patients. Computed tomography revealed central bronchiectasis, pulmonary infiltration and mucous plugs in all patients. Causative fungi other than Aspergillus sp. are not uncommon, and immunological tests for other fungi should be popularized. Asthma and characteristic laboratory findings, such as peripheral blood eosinophilia, increased serum IgE and precipitating antibodies, may not always be required to diagnose ABPM. The importance of typical pathologic findings of mucous plugs for diagnosing ABPM requires reevaluation. Further studies are needed to establish more elaborate diagnostic criteria for ABPM.

  2. Provenance and paleogeography of the Devonian Durazno Group, southern Parana Basin in Uruguay

    Science.gov (United States)

    Uriz, N. J.; Cingolani, C. A.; Basei, M. A. S.; Blanco, G.; Abre, P.; Portillo, N. S.; Siccardi, A.

    2016-03-01

    A succession of Devonian cover rocks occurs in outcrop and in the subsurface of central-northern Uruguay where they were deposited in an intracratonic basin. This Durazno Group comprises three distinct stratigraphic units, namely the Cerrezuelo, Cordobés and La Paloma formations. The Durazno Group does not exceed 300 m of average thickness and preserves a transgressive-regressive cycle within a shallow-marine siliciclastic shelf platform, and is characterized by an assemblage of invertebrate fossils of Malvinokaffric affinity especially within the Lower Devonian Cordobés shales. The sedimentary provenance of the Durazno Group was determined using petrography, geochemistry, and morphological studies of detrital zircons as well as their U-Pb ages. Sandstone petrography of Cerrezuelo and La Paloma sequences shows that they have a dominantly quartz-feldspathic composition with a minor contribution of other minerals. Whole-rock geochemical data indicate that alteration was strong in each of the three formations studied; chondritic-normalized REE patterns essentially parallel to PAAS, the presence of a negative Eu-anomaly, and Th/Sc and La/Hf ratios point to an average source composition similar to UCC or slightly more felsic. Within the Cerrezuelo Formation, recycling of older volcano-metasedimentary sources is interpreted from Zr/Sc ratios and high Hf, Zr, and REE concentrations. U-Pb detrital zircon age populations of the Cerrezuelo and La Paloma formations indicate that the principal source terranes are of Neoproterozoic age, but include also minor populations derived from Mesoproterozoic and Archean-Paleoproterozoic rocks. A provenance from the Cuchilla Dionisio-Dom Feliciano, Nico Pérez and Piedra Alta terranes of Uruguay and southern Brazil is likely. This study establishes an intracratonic extensional tectonic setting during Durazno time. Considering provenance age sources, regional paleocurrent distributions and the established orogenic history recorded in SW

  3. Effects of temperature and drought manipulations on seedlings of Scots pine provenances.

    Science.gov (United States)

    Taeger, S; Sparks, T H; Menzel, A

    2015-03-01

    Rising temperatures and more frequent and severe climatic extremes as a consequence of climate change are expected to affect growth and distribution of tree species that are adapted to current local conditions. Species distribution models predict a considerable loss of habitats for Pinus sylvestris. These models do not consider possible intraspecific differences in response to drought and warming that could buffer those impacts. We tested 10 European provenances of P. sylvestris, from the southwestern to the central European part of the species distribution, for their response to warming and to drought using a factorial design. In this common-garden experiment the air surrounding plants was heated directly to prevent excessive soil heating, and drought manipulation, using a rain-out shelter, permitted almost natural radiation, including high light stress. Plant responses were assessed as changes in phenology, growth increment and biomass allocation. Seedlings of P. sylvestris revealed a plastic response to drought by increased taproot length and root-shoot ratios. Strongest phenotypic plasticity of root growth was found for southwestern provenances, indicating a specific drought adaptation at the cost of overall low growth of aboveground structures even under non-drought conditions. Warming had a minor effect on growth but advanced phenological development and had a contrasting effect on bud biomass and diameter increment, depending on water availability. The intraspecific variation of P. sylvestris provenances could buffer climate change impacts, although additional factors such as the adaptation to other climatic extremes have to be considered before assisted migration could become a management option. © 2014 German Botanical Society and The Royal Botanical Society of the Netherlands.

  4. Dynamic Data Citation through Provenance - new approach for reproducible science in Geoscience Australia.

    Science.gov (United States)

    Bastrakova, I.; Car, N.

    2017-12-01

    Geoscience Australia (GA) is recognised and respected as the National Repository and steward of multiple nationally significance data collections that provides geoscience information, services and capability to the Australian Government, industry and stakeholders. Internally, this brings a challenge of managing large volume (11 PB) of diverse and highly complex data distributed through a significant number of catalogues, applications, portals, virtual laboratories, and direct downloads from multiple locations. Externally, GA is facing constant changer in the Government regulations (e.g. open data and archival laws), growing stakeholder demands for high quality and near real-time delivery of data and products, and rapid technological advances enabling dynamic data access. Traditional approach to citing static data and products cannot satisfy increasing demands for the results from scientific workflows, or items within the workflows to be open, discoverable, thrusted and reproducible. Thus, citation of data, products, codes and applications through the implementation of provenance records is being implemented. This approach involves capturing the provenance of many GA processes according to a standardised data model and storing it, as well as metadata for the elements it references, in a searchable set of systems. This provides GA with ability to cite workflows unambiguously as well as each item within each workflow, including inputs and outputs and many other registered components. Dynamic objects can therefore be referenced flexibly in relation to their generation process - a dataset's metadata indicates where to obtain its provenance from - meaning the relevant facts of its dynamism need not be crammed into a single citation object with a single set of attributes. This allows for simple citations, similar to traditional static document citations such as references in journals, to be used for complex dynamic data and other objects such as software code.

  5. Warming and provenance limit tree recruitment across and beyond the elevation range of subalpine forest.

    Science.gov (United States)

    Kueppers, Lara M; Conlisk, Erin; Castanha, Cristina; Moyes, Andrew B; Germino, Matthew J; de Valpine, Perry; Torn, Margaret S; Mitton, Jeffry B

    2017-06-01

    Climate niche models project that subalpine forest ranges will extend upslope with climate warming. These projections assume that the climate suitable for adult trees will be adequate for forest regeneration, ignoring climate requirements for seedling recruitment, a potential demographic bottleneck. Moreover, local genetic adaptation is expected to facilitate range expansion, with tree populations at the upper forest edge providing the seed best adapted to the alpine. Here, we test these expectations using a novel combination of common gardens, seeded with two widely distributed subalpine conifers, and climate manipulations replicated at three elevations. Infrared heaters raised temperatures in heated plots, but raised temperatures more in the forest than at or above treeline because strong winds at high elevation reduced heating efficiency. Watering increased season-average soil moisture similarly across sites. Contrary to expectations, warming reduced Engelmann spruce recruitment at and above treeline, as well as in the forest. Warming reduced limber pine first-year recruitment in the forest, but had no net effect on fourth-year recruitment at any site. Watering during the snow-free season alleviated some negative effects of warming, indicating that warming exacerbated water limitations. Contrary to expectations of local adaptation, low-elevation seeds of both species initially recruited more strongly than high-elevation seeds across the elevation gradient, although the low-provenance advantage diminished by the fourth year for Engelmann spruce, likely due to small sample sizes. High- and low-elevation provenances responded similarly to warming across sites for Engelmann spruce, but differently for limber pine. In the context of increasing tree mortality, lower recruitment at all elevations with warming, combined with lower quality, high-provenance seed being most available for colonizing the alpine, portends range contraction for Engelmann spruce. The lower

  6. PIXE characterization of Western Mediterranean and Anatolian obsidians and Neolithic provenance studies

    International Nuclear Information System (INIS)

    Le Bourdonnec, F.-X.; Delerue, S.; Dubernet, S.; Moretto, Ph.; Calligaro, Th.; Dran, J.-C.; Poupeau, G.

    2005-01-01

    The possibility of non-destructive elemental analysis makes PIXE a very attractive technique in archaeological provenance studies. This technique has been fruitfully implemented on two different facilities to address the issue of obsidian provenance in the Mediterranean and in surrounding regions. At C2RMF, we took advantage of the possibility to analyze large archaeological pieces with the external micro-beam set-up. At CENBG, we used the nuclear microprobe providing a 5 μm beam diameter in large scans (700 x 700 μm 2 ) to control the homogeneity of elemental distribution. In both cases we dosed the same set of 13 elements: Na, Al, Si, K, Ca, Ti, Mn, Fe, Zn, Ga, Rb, Sr and Zr. While at C2RMF, two Si(Li) detectors were used simultaneously to measure all elements at once with 3 MeV protons, at CENBG where only one detector was available, the light elements Na to Fe were determined with a 1.5 MeV beam, and the heavy ones, including Fe, with a beam energy of 2.7 MeV. In Western Mediterranean, it is possible with PIXE to differentiate all obsidian sources of archaeological significance. Examples are given of obsidian provenances from Neolithic sites of France and from the islands of Corsica and Sardinia. In the Near East, we can differentiate the Cappadocian and Eastern Anatolian obsidian sources used during the early Neolithic. This is illustrated by examples taken from Neolithic sites of the Middle Euphrates Valley (Syria)

  7. Entity Linking Leveraging the GeoDeepDive Cyberinfrastructure and Managing Uncertainty with Provenance.

    Science.gov (United States)

    Maio, R.; Arko, R. A.; Lehnert, K.; Ji, P.

    2017-12-01

    Unlocking the full, rich, network of links between the scientific literature and the real world entities to which data correspond - such as field expeditions (cruises) on oceanographic research vessels and physical samples collected during those expeditions - remains a challenge for the geoscience community. Doing so would enable data reuse and integration on a broad scale; making it possible to inspect the network and discover, for example, all rock samples reported in the scientific literature found within 10 kilometers of an undersea volcano, and associated geochemical analyses. Such a capability could facilitate new scientific discoveries. The GeoDeepDive project provides negotiated access to 4.2+ million documents from scientific publishers, enabling text and document mining via a public API and cyberinfrastructure. We mined this corpus using entity linking techniques, which are inherently uncertain, and recorded provenance information about each link. This opens the entity linking methodology to scrutiny, and enables downstream applications to make informed assessments about the suitability of an entity link for consumption. A major challenge is how to model and disseminate the provenance information. We present results from entity linking between journal articles, research vessels and cruises, and physical samples from the Petrological Database (PetDB), and incorporate Linked Data resources such as cruises in the Rolling Deck to Repository (R2R) catalog where possible. Our work demonstrates the value and potential of the GeoDeepDive cyberinfrastructure in combination with Linked Data infrastructure provided by the EarthCube GeoLink project. We present a research workflow to capture provenance information that leverages the World Wide Web Consortium (W3C) recommendation PROV Ontology.

  8. Mineralogy, stratigraphy, and provenance of soil coverbeds in the Kumara district, Westland

    International Nuclear Information System (INIS)

    Neall, V.E.; Stewart, R.B.; Wallace, R.C.; Williams, M.C.; Mew, G.

    2001-01-01

    The sand and silt mineralogy of four soils preserved on fluvioglacial outwash terraces at Kumara indicates that the main soil body is developed in up to 1 m of loessial coverbeds that accumulated subsequent to cessation of gravel terrace formation. Oxygen isotope abundances of the dominant mineral quartz in these soils show a higher temperature origin for the >250 micro-m fraction, consistent with derivation from local granodiorites. Finer quartz is of a mixed provenance origin consistent with the variety of rock types in the region. The finest quartz, <5 micro-m, of aerosolic origin, can be used as a proxy time record for the coverbed accumulations. The widespread 22 590 yr BP Aokautere Ash chronohorizon is preserved in three of the profiles, whilst wind redeposition of the glass shards is responsible for traces of rhyolitic glass in all subsequent horizons. Widespread landscape erosion is postulated either immediately before or during deposition of the K-1 terrace, so that similar subsequent coverbed sequences ae preserved on the K-1 and all older terraces in this district. Magnetic mineral assemblages in the profiles indicate a slightly different loessial provenance for the Cockeye, K-1, and K-2.1 profiles, but the K-2.2 is significantly different from the rest. This is probably a function of aeolian winnowing and variablity of source materials. In the past, different mountain catchments have connected with different lower river reaches, due to transcurrent movement on the Alpine Fault. This is interpreted as having led to changing provenance of river sediment supplying loess to local soils. (author). 39 refs.,10 figs., 4 tabs

  9. Retrospective analysis of 104 histologically proven adult brainstem gliomas: clinical symptoms, therapeutic approaches and prognostic factors

    International Nuclear Information System (INIS)

    Reithmeier, Thomas; Kuzeawu, Aanyo; Hentschel, Bettina; Loeffler, Markus; Trippel, Michael; Nikkhah, Guido

    2014-01-01

    Adult brainstem gliomas are rare primary brain tumors (<2% of gliomas). The goal of this study was to analyze clinical, prognostic and therapeutic factors in a large series of histologically proven brainstem gliomas. Between 1997 and 2007, 104 patients with a histologically proven brainstem glioma were retrospectively analyzed. Data about clinical course of disease, neuropathological findings and therapeutic approaches were analyzed. The median age at diagnosis was 41 years (range 18-89 years), median KPS before any operative procedure was 80 (range 20-100) and median survival for the whole cohort was 18.8 months. Histopathological examinations revealed 16 grade I, 31 grade II, 42 grade III and 14 grade IV gliomas. Grading was not possible in 1 patient. Therapeutic concepts differed according to the histopathology of the disease. Median overall survival for grade II tumors was 26.4 months, for grade III tumors 12.9 months and for grade IV tumors 9.8 months. On multivariate analysis the relative risk to die increased with a KPS ≤ 70 by factor 6.7, with grade III/IV gliomas by the factor 1.8 and for age ≥ 40 by the factor 1.7. External beam radiation reduced the risk to die by factor 0.4. Adult brainstem gliomas present with a wide variety of neurological symptoms and postoperative radiation remains the cornerstone of therapy with no proven benefit of adding chemotherapy. Low KPS, age ≥ 40 and higher tumor grade have a negative impact on overall survival

  10. Half way round the LHC

    CERN Multimedia

    CERN Bulletin

    The LHC operations teams are preparing the machine for circulating beams and things are going very smoothly. ALICE and LHCb are getting used to observing particle tracks coming from the LHC beams. During the weekend of 7-8 November, CMS also  saw its first signals from beams dumped just upstream of  the experiment cavern.   Operators in the CMS control room observe the good performance of their detector. Particles are smoothly making their way around the 27 km circumference of the LHC. Last weekend (7-8 November), the first bunches of injection energy protons completed their journey (anti-clockwise) through three octants of the LHC’s circumference and were dumped in a collimator just before entering the CMS cavern. The particles produced by the impact of the protons on the tertiary collimators (used to stop the beam) left their tracks in the calorimeters and the muon chambers of the experiment. The more delicate inner detectors were switched off for protection reasons....

  11. A NO way to BOLD?

    DEFF Research Database (Denmark)

    Aamand, Rasmus; Dalsgaard, Thomas; Ho, Yi Ching Lynn

    2013-01-01

    Neurovascular coupling links neuronal activity to vasodilation. Nitric oxide (NO) is a potent vasodilator, and in neurovascular coupling NO production from NO synthases plays an important role. However, another pathway for NO production also exists, namely the nitrate-nitrite-NO pathway. On this ......Neurovascular coupling links neuronal activity to vasodilation. Nitric oxide (NO) is a potent vasodilator, and in neurovascular coupling NO production from NO synthases plays an important role. However, another pathway for NO production also exists, namely the nitrate-nitrite-NO pathway...... to stimuli. A faster and smaller BOLD response, with less variation across local cortex, is consistent with an enhanced hemodynamic coupling during elevated nitrate intake. These findings suggest that dietary patterns, via the nitrate-nitrite-NO pathway, may be a potential way to affect key properties....... On this basis, we hypothesized that dietary nitrate (NO3-) could influence the brain's hemodynamic response to neuronal stimulation. In the present study, 20 healthy male participants were given either sodium nitrate (NaNO3) or sodium chloride (NaCl) (saline placebo) in a crossover study and were shown visual...

  12. Prices on the way up?

    International Nuclear Information System (INIS)

    Anon.

    1992-01-01

    It may have taken until the very last day of the month, but prices are finally on the way up. On July 31, a US utility concluded at least two transactions for a minimum of 250,000 lbs U3O8 equivalent, pushing the top of NUKEM's price range up 10 cents. After three months with prices languishing below US$7.85, the price range now stands at US$7.75-$7.95. The pace of new demand held steady in July versus June, with more than 3.4 million lbs equivalent in new requests entering the market. There was one difference: The new demand in July was characterized by longer lead time. Most new demand in June required delivery by the end of the fourth quarter, a lead time of about 3 to 6 months. In July, buyers accepted delivery anywhere from 4 to 9 months out, with most delivery requests landing in 1993. This jump in lead times is largely due to one seller in the market offering first and second quarter 1993 deliveries near the bottom of the price range to utilities with flexible needs

  13. Responses to The Way Forward

    International Nuclear Information System (INIS)

    1988-11-01

    In November 1987 United Kingdom Nirex Limited launched a discussion document entitled The Way Forward. The stated aims of the document were to promote discussion and to seek constructive contributions to the task of ensuring that radioactive waste is managed safely. It further aimed to promote public understanding of the issues involved and to stimulate comment which would assist Nirex in developing acceptable proposals for the disposal of radioactive waste. From the 2,526 replies received the main findings are: there is a clear welcome for the consultation exercise among local authorities and the majority of responding organisations; there is no overall unanimity of view; there appears to be little support for the under sea-bed accessed off-shore repository; safety is judged to be the paramount factor for all consultees, though clearly views differ as to how best to achieve this. The safe transport of wastes is the next major area of concern; views differ as to whether areas of high amenity value should be excluded from consideration at the outset, though the majority view is probably that they should be; the monitoring and recoverability of wastes is generally deemed to be important; potential detrimental local economic impact and blight through social stigma associated with the public perception of radioactive waste disposal is also a key concern and there is opposition from local authorities and environmental groups to the use of the Special Development Order procedure for obtaining planning permission for either investigative drilling or subsequent development. (author)

  14. The fission-track analysis: An alternative technique for provenance studies of prehistoric obsidian artefacts

    CERN Document Server

    Bellot-Gurlet, L; Dorighel, O; Oddone, M; Poupeau, G; Yegingil, Z

    1999-01-01

    Comparison of fission-track parameters - age and track densities - is an alternative tool for correlating obsidian artefacts with their potential natural sources. This method was applied by different fission-track groups in various regions and results were compared with those obtained using the more popular provenance identification techniques based on chemical composition studies. Hundreds of analyses prove that fission-track dating is a complementary technique which turns out to be very useful, specially when the chemical composition does not fully discriminate different sources. Archaeologically significant results were obtained applying the fission-track analysis in various regions of earth.

  15. Frequency and outcomes of biopsy-proven fibroadenomas recommended for surgical excision.

    Science.gov (United States)

    Lee, Shimwoo; Mercado, Cecilia L; Cangiarella, Joan F; Chhor, Chloe M

    2017-12-16

    Our aim was to investigate the outcomes of fibroadenomas recommended for surgical excision due to large size (>2cm) or interval growth. A retrospective review of our institutional radiology database from 2007 to 2015 was performed. We identified 167 biopsy-proven fibroadenomas recommended for surgical consultation. Of these, 75 (45%) cases actually underwent excision, 7 (9%, 95% CI: 4-18%) of which were upgraded to phyllodes tumors upon histopathological examination. Our results support the current recommendation to surgically excise breast lesions diagnosed as fibroadenomas with size >2cm or with interval growth due to the considerable risk of finding phyllodes tumors. Copyright © 2017 Elsevier Inc. All rights reserved.

  16. The fission-track analysis: An alternative technique for provenance studies of prehistoric obsidian artefacts

    International Nuclear Information System (INIS)

    Bellot-Gurlet, L.; Bigazzi, G.; Dorighel, O.; Oddone, M.; Poupeau, G.; Yegingil, Z.

    1999-01-01

    Comparison of fission-track parameters - age and track densities - is an alternative tool for correlating obsidian artefacts with their potential natural sources. This method was applied by different fission-track groups in various regions and results were compared with those obtained using the more popular provenance identification techniques based on chemical composition studies. Hundreds of analyses prove that fission-track dating is a complementary technique which turns out to be very useful, specially when the chemical composition does not fully discriminate different sources. Archaeologically significant results were obtained applying the fission-track analysis in various regions of earth

  17. Provenance determination of pottery by trace element analysis. Problems, solutions and applications

    International Nuclear Information System (INIS)

    Mommsen, H.

    2001-01-01

    Provenance determinations of pottery by chemical analysis is reviewed and shown to work well. Since pottery is produced from a well homogenized clay paste according to a certain recipe, sharp elemental patterns are expected for a series of products having the same origin. To obtain such patterns when forming compositional groups of pottery, a consideration of experimental errors, a correction for dilution and a choice of only stable elements is necessary. The patterns thus obtained will have low probability of overlap with groups of different origin. Examples for well defined groups of German stonewares and of Mycenaean wares from the Peloponnese are recorded. (author)

  18. Provenance and dating study on Jianyao Kiln porcelain bodies using NAA and WDXRF

    International Nuclear Information System (INIS)

    Feng Xiangqian; Feng Songlin; Li Jian'an; Li Dejin

    2007-01-01

    In order to distinguish provenance and age of Jianyao Kiln porcelains based on their chemical composition, 139 sherds that cover seven periods of production, were collected from three kiln sites. Trace and major elements in their body samples were determined by NAA and WDXRF, respectively. The analytical data and statistical analysis results show that all the body samples can be classified into 4 groups, i.e. Late Tang and Five Dynanties, Northern Song, Southern Song and Yuan. The raw materials adopted by Daluhoumen kiln site black porcelains were similar to those of Yingzhangqian site, but quite different from those of Anweishan site. (authors)

  19. Provenance studies in Amazon basin by means of chemical composition obtained by INAA

    International Nuclear Information System (INIS)

    Santos, J.O.; Munita, C.S.; Soares, E.A.A.

    2015-01-01

    This study determines the provenance of the 106 sediments samples deposited by the Solimoes and Negro rivers in the tectonic depressions in Manaus, Amazon state, Brazil. Twenty-four chemical elements in the sediment samples collected before the confluence of Negro and Solimoes rivers have been determined using instrumental neutron activation analysis, INAA. It is inferred from the multivariate statistical methods that samples from the basin of the Solimoes river and tectonic depression 1 (the most significant of the region) are not significantly different. These results indicate the contribution this river in the sedimentary fill during the evolution in the Quaternary. (author)

  20. Provenance of the lower Miocene of the Gulf of Mexico from detrital zircon double dating

    Science.gov (United States)

    xu, J.

    2013-12-01

    The lower Miocene interval of the Gulf of Mexico (GOM) has recently gained increasing attention from oil and gas industry due to its hydrocarbon potential below the salt canopy. However, it has been less well studied than both the underlying Oligocene and overlying middle Miocene strata. The lower Miocene worldwide is a transitional period of tectonic, climatic, and oceanographic change. In particular, it is a period of major tectonic reorganization in the western interior of North America (Rocky Mountains), involving a shift from the Oligocene thermal phase, with abundant volcanic activity recorded in the thick Frio/Vicksburg succession of the GOM, to the Miocene Basin-Range extensional phase. Climatic conditions also changed from a relatively arid Oligocene to wetter Miocene, resulting in increased sediment yields from exhumed tectonic structures. Previous provenance studies used proportions of quartz, feldspar and lithic fragments and consideration of likely river courses through known paleogeomorphological elements. Only limited detrital zircon (DZ) U-Pb studies on Paleocene strata have been undertaken and there has been no previous U-Pb and (U-Th)/He double dating in the GOM. In this study we apply the latest analytical approaches, such as DZ U-Pb dating to gain robust source terranes ages and more fully elucidate the complex sediment provenance and dispersal history of GOM. We also employ DZ (U-Th)/He (ZHe) dating, combined with DZ U-Pb, to not only define sedimentary provenance but also the exhumation histories of detrital source regions. Samples of lower Miocene outcrop exposures in Texas and Louisiana have been collected to discriminate the varied tectonic and drainage system changes across the basin in lateral. In addition, samples from the Eocene, Oligocene and middle Miocene have been obtained to reveal vertical shift of source terranes contributions. Our initial age data show detrital zircons of lower Miocene sediments come from a wide range of source

  1. Humic acid provenance influence to the adsorption capacity in uranium and thorium removal

    Science.gov (United States)

    Prasetyo, E.

    2018-01-01

    It is common knowledge that humic acid is organic compound without certain chemical composition since it is derived from different organic materials. Further this raises question whether the different humic acid sample used could lead to different adsorbent properties e.g. adsorption capacity. To address the problem, this paper is aimed to clarify the relation between the provenances of humic acid and synthesized adsorbent properties especially adsorption capacities by quantitative and qualitative functional groups determination including discussion on their effect to the metal ion adsorption mechanism using three humic acid samples. Two commercial samples were derived from recent compost while the other extracted from tertiary carbonaceous mudstone strata.

  2. A smarter way to network.

    Science.gov (United States)

    Cross, Rob; Thomas, Robert

    2011-01-01

    The adage "It's not what you know, it's who you know" is true. The right social network can have a huge impact on your success. But many people have misguided ideas about what makes a network strong: They believe the key is having a large circle filled with high-powered contacts. That's not the right approach, say Cross, of UVA's McIntire School of Commerce, and Thomas, of the Accenture Institute for High Performance. The authors, who have spent years researching how organizations can capitalize on employees' social networks, have seen that the happiest, highest-performing executives have a different kind of network: select but diverse, made up of high-quality relationships with people who come from varying spheres and from up and down the corporate ladder. Effective networks typically range in size from 12 to 18 people. They help managers learn, make decisions with less bias, and grow personally. Cross and Thomas have found that they include six critical kinds of connections: people who provide information, ideas, or expertise; formally and informally powerful people, who offer mentoring and political support; people who give developmental feedback; people who lend personal support; people who increase your sense of purpose or worth; and people who promote work/life balance. Moreover, the best kind of connections are "energizers"--positive, trustworthy individuals who enjoy other people and always see opportunities, even in challenging situations. If your network doesn't look like this, you can follow a four-step process to improve it. You'll need to identify who your connections are and what they offer you, back away from redundant and energy-draining connections, fill holes in your network with the right kind of people, and work to make the most of your contacts. Do this, and in due course, you'll have a network that steers the best opportunities, ideas, and talent your way.

  3. Regenerative endodontics: A way forward.

    Science.gov (United States)

    Diogenes, Anibal; Ruparel, Nikita B; Shiloah, Yoav; Hargreaves, Kenneth M

    2016-05-01

    Immature teeth are susceptible to infections due to trauma, anatomic anomalies, and caries. Traditional endodontic therapies for immature teeth, such as apexification procedures, promote resolution of the disease and prevent future infections. However, these procedures fail to promote continued root development, leaving teeth susceptible to fractures. Regenerative endodontic procedures (REPs) have evolved in the past decade, being incorporated into endodontic practice and becoming a viable treatment alternative for immature teeth. The authors have summarized the status of regenerative endodontics on the basis of the available published studies and provide insight into the different levels of clinical outcomes expected from these procedures. Substantial advances in regenerative endodontics are allowing a better understanding of a multitude of factors that govern stem cell-mediated regeneration and repair of the damaged pulp-dentin complex. REPs promote healing of apical periodontitis, continued radiographic root development, and, in certain cases, vitality responses. Despite the clinical success of these procedures, they appear to promote a guided endodontic repair process rather than a true regeneration of physiological-like tissue. Immature teeth with pulpal necrosis with otherwise poor prognosis can be treated with REPs. These procedures do not preclude the possibility of apexification procedures if attempts are unsuccessful. Therefore, REPs may be considered first treatment options for immature teeth with pulpal necrosis. Copyright © 2016 American Dental Association. Published by Elsevier Inc. All rights reserved.

  4. Defining the “proven technology” technical criterion in the reactor technology assessment for Malaysia’s nuclear power program

    International Nuclear Information System (INIS)

    Anuar, Nuraslinda; Kahar, Wan Shakirah Wan Abdul; Manan, Jamal Abdul Nasir Abd

    2015-01-01

    Developing countries that are considering the deployment of nuclear power plants (NPPs) in the near future need to perform reactor technology assessment (RTA) in order to select the most suitable reactor design. The International Atomic Energy Agency (IAEA) reported in the Common User Considerations (CUC) document that “proven technology” is one of the most important technical criteria for newcomer countries in performing the RTA. The qualitative description of five desired features for “proven technology” is relatively broad and only provides a general guideline to its characterization. This paper proposes a methodology to define the “proven technology” term according to a specific country’s requirements using a three-stage evaluation process. The first evaluation stage screens the available technologies in the market against a predefined minimum Technology Readiness Level (TRL) derived as a condition based on national needs and policy objectives. The result is a list of technology options, which are then assessed in the second evaluation stage against quantitative definitions of CUC desired features for proven technology. The potential technology candidates produced from this evaluation is further narrowed down to obtain a list of proven technology candidates by assessing them against selected risk criteria and the established maximum allowable total score using a scoring matrix. The outcome of this methodology is the proven technology candidates selected using an accurate definition of “proven technology” that fulfills the policy objectives, national needs and risk, and country-specific CUC desired features of the country that performs this assessment. A simplified assessment for Malaysia is carried out to demonstrate and suggest the use of the proposed methodology. In this exercise, ABWR, AP1000, APR1400 and EPR designs assumed the top-ranks of proven technology candidates according to Malaysia’s definition of “proven technology”

  5. Defining the “proven technology” technical criterion in the reactor technology assessment for Malaysia’s nuclear power program

    Energy Technology Data Exchange (ETDEWEB)

    Anuar, Nuraslinda, E-mail: nuraslinda@uniten.edu.my [College of Engineering, Universiti Tenaga Nasional, Jalan IKRAM-UNITEN, 43000 Kajang, Selangor (Malaysia); Kahar, Wan Shakirah Wan Abdul, E-mail: shakirah@tnb.com.my; Manan, Jamal Abdul Nasir Abd [Nuclear Energy Department, Regulatory Economics and Planning Division, Tenaga Nasional Berhad, No. 8 Jalan Tun Sambanthan, Brickfields, 50470 Kuala Lumpur (Malaysia)

    2015-04-29

    Developing countries that are considering the deployment of nuclear power plants (NPPs) in the near future need to perform reactor technology assessment (RTA) in order to select the most suitable reactor design. The International Atomic Energy Agency (IAEA) reported in the Common User Considerations (CUC) document that “proven technology” is one of the most important technical criteria for newcomer countries in performing the RTA. The qualitative description of five desired features for “proven technology” is relatively broad and only provides a general guideline to its characterization. This paper proposes a methodology to define the “proven technology” term according to a specific country’s requirements using a three-stage evaluation process. The first evaluation stage screens the available technologies in the market against a predefined minimum Technology Readiness Level (TRL) derived as a condition based on national needs and policy objectives. The result is a list of technology options, which are then assessed in the second evaluation stage against quantitative definitions of CUC desired features for proven technology. The potential technology candidates produced from this evaluation is further narrowed down to obtain a list of proven technology candidates by assessing them against selected risk criteria and the established maximum allowable total score using a scoring matrix. The outcome of this methodology is the proven technology candidates selected using an accurate definition of “proven technology” that fulfills the policy objectives, national needs and risk, and country-specific CUC desired features of the country that performs this assessment. A simplified assessment for Malaysia is carried out to demonstrate and suggest the use of the proposed methodology. In this exercise, ABWR, AP1000, APR1400 and EPR designs assumed the top-ranks of proven technology candidates according to Malaysia’s definition of “proven technology”.

  6. Work Practice Characteristics

    DEFF Research Database (Denmark)

    Pors, Jens Kaaber; Simonsen, Jesper

    2003-01-01

    and work practice. To understand these issues a framework of characteristics is identified and termed work practice characteristics to describe important aspects of the hybrid configuration of groupware and situated work practices. Drawing on concepts and work practice studies in the field of computer...... investigation of how groupware is employed to support new ways of working in a large European financial organisation are analysed to illustrate situations with high and low integration of groupware. The framework of work practice characteristics is discussed in the light of these findings and implications...

  7. Pro NET Best Practices

    CERN Document Server

    Ritchie, Stephen D

    2011-01-01

    Pro .NET Best Practices is a practical reference to the best practices that you can apply to your .NET projects today. You will learn standards, techniques, and conventions that are sharply focused, realistic and helpful for achieving results, steering clear of unproven, idealistic, and impractical recommendations. Pro .NET Best Practices covers a broad range of practices and principles that development experts agree are the right ways to develop software, which includes continuous integration, automated testing, automated deployment, and code analysis. Whether the solution is from a free and

  8. Multiparametric evaluation by simultaneous PET-MRI examination in patients with histologically proven laryngeal cancer.

    Science.gov (United States)

    Cavaliere, Carlo; Romeo, Valeria; Aiello, Marco; Mesolella, Massimo; Iorio, Brigida; Barbuto, Luigi; Cantone, Elena; Nicolai, Emanuele; Covello, Mario

    2017-03-01

    To evaluate the relationship between metabolic 18Fluoro-Deoxyglucose-Positron Emission Tomography (18FDG/PET) and morpho-functional parameters derived by Magnetic Resonance Imaging (MRI) in patients with histologically proven laryngeal cancer. To assess the clinical impact of PET/MRI examination on patient's staging and treatment planning. 16 patients with histologically proven laryngeal cancer were enrolled and underwent whole body PET/CT followed by a dedicated PET/MRI of the head/neck region. Data were separately evaluated by two blinded groups: metabolic (SUV and MTV), diffusion (ADC) and perfusion (K trans , V e , k ep and iAUC) maps were obtained by positioning regions of interest (ROIs). Tumoral local extension assessed on PET/MRI was compared to endoscopic findings. A good inter-observer agreement was found in anatomical location and local extension of PET/MRI lesions (Cohen's kappa 0.9). PET/CT SUV measures highly correlate with ones derived by PET/MRI (e.g., p=0.96 for measures on VOI). Significant correlations among metabolic, diffusion and perfusion parameters have been detected. PET/MRI had a relevant clinical impact, confirming endoscopic findings (6 cases), helping treatment planning (9 cases), and modifying endoscopic primary staging (1 case). PET/MRI is useful for primary staging of laryngeal cancer, allowing simultaneous collection of metabolic and functional data and conditioning the therapeutic strategies. Copyright © 2016 Elsevier Ireland Ltd. All rights reserved.

  9. Application of radiometric analysis in the study of provenance and transport processes of Brazilian coastal sediments

    International Nuclear Information System (INIS)

    Carvalho, C.; Anjos, R.M.; Veiga, R.; Macario, K.

    2011-01-01

    Natural gamma radiation of beach sand deposits was measured along the south coast of Rio de Janeiro State, Brazil, with the aim of studying the provenance and transport processes of sediments in this area. Concentrations of thorium, uranium and potassium were evaluated using γ-ray spectrometry and a behavioral study of eTh/eU and eTh/K cross plots was performed, reflecting the mineralogical properties of beach sands, as well as their history of transport and sorting processes. The results show that such technique can be efficiently used to map heavy mineral distributions and to distinguish the different origins of coastal sediments disclosing the influence of nearby rivers. - Research highlights: → Based on the natural γ-ray analyses of beach sand, high concentrations of heavy minerals have been found around the Mambucaba River deltaic complex, located in the South of Rio de Janeiro State, Brazil. → Concentrations of thorium, uranium and potassium concentration can give information on the mineral composition and provenance of beach sands and consequently investigate heavy mineral deposits.

  10. Application of radiometric analysis in the study of provenance and transport processes of Brazilian coastal sediments

    Energy Technology Data Exchange (ETDEWEB)

    Carvalho, C. [Laboratorio de Radioecologia (LARA), Instituto de Fisica, Universidade Federal Fluminense, Av. Gal. Milton Tavares de Souza, s/no, Gragoata, 24210-346 Niteroi, RJ (Brazil); Anjos, R.M., E-mail: meigikos@if.uff.b [Laboratorio de Radioecologia (LARA), Instituto de Fisica, Universidade Federal Fluminense, Av. Gal. Milton Tavares de Souza, s/no, Gragoata, 24210-346 Niteroi, RJ (Brazil); Veiga, R.; Macario, K. [Laboratorio de Radioecologia (LARA), Instituto de Fisica, Universidade Federal Fluminense, Av. Gal. Milton Tavares de Souza, s/no, Gragoata, 24210-346 Niteroi, RJ (Brazil)

    2011-02-15

    Natural gamma radiation of beach sand deposits was measured along the south coast of Rio de Janeiro State, Brazil, with the aim of studying the provenance and transport processes of sediments in this area. Concentrations of thorium, uranium and potassium were evaluated using {gamma}-ray spectrometry and a behavioral study of eTh/eU and eTh/K cross plots was performed, reflecting the mineralogical properties of beach sands, as well as their history of transport and sorting processes. The results show that such technique can be efficiently used to map heavy mineral distributions and to distinguish the different origins of coastal sediments disclosing the influence of nearby rivers. - Research highlights: {yields} Based on the natural {gamma}-ray analyses of beach sand, high concentrations of heavy minerals have been found around the Mambucaba River deltaic complex, located in the South of Rio de Janeiro State, Brazil. {yields} Concentrations of thorium, uranium and potassium concentration can give information on the mineral composition and provenance of beach sands and consequently investigate heavy mineral deposits.

  11. Obsidian provenance studies in archaeology: A comparison between PIXE, ICP-AES and ICP-MS

    International Nuclear Information System (INIS)

    Bellot-Gurlet, Ludovic; Poupeau, Gerard; Salomon, Joseph; Calligaro, Thomas; Moignard, Brice; Dran, Jean-Claude; Barrat, Jean-Alix; Pichon, Laurent

    2005-01-01

    Elemental composition fingerprinting by PIXE technique is very attractive for obsidian provenance studies as it may proceed in a non-destructive mode, even if a more complete elemental characterization can be obtained by ICP-MS and/or ICP-AES. Only few studies have compared results obtained by both methods for solid rock samples. In this work, elemental compositions were determined by ICP-MS/-AES for international geochemical standards and by ICP-MS/-AES and PIXE for inter-laboratory reference obsidians. In addition 49 obsidian source samples and artefacts were analysed by both ICP-MS/-AES and PIXE. Instrumental work and measurement quality control performed for obsidian chemical characterization, underline that PIXE and ICP-MS/-AES provide reproducible, accurate and comparable measurements. In some volcanic districts the limited number of elements dosed by PIXE is sufficient for the discrimination of the potential raw sources of obsidians. Therefore, PIXE can be an advantageous substitute to ICP-MS/-AES techniques for provenance studies

  12. Provenance of whitefish in the Gulf of Bothnia determined by elemental analysis of otolith cores

    Science.gov (United States)

    Lill, J.-O.; Finnäs, V.; Slotte, J. M. K.; Jokikokko, E.; Heimbrand, Y.; Hägerstrand, H.

    2018-02-01

    The strontium concentration in the core of otoliths was used to determine the provenance of whitefish found in the Gulf of Bothnia, Baltic Sea. To that end, a database of strontium concentration in fish otoliths representing different habitats (sea, river and fresh water) had to be built. Otoliths from juvenile whitefish were therefore collected from freshwater ponds at 5 hatcheries, from adult whitefish from 6 spawning sites at sea along the Finnish west coast, and from adult whitefish ascending to spawn in the Torne River, in total 67 otoliths. PIXE was applied to determine the elemental concentrations in these otoliths. While otoliths from the juveniles raised in the freshwater ponds showed low but varying strontium concentrations (194-1664 μg/g,), otoliths from sea-spawning fish showed high uniform strontium levels (3720-4333 μg/g). The otolith core analysis of whitefish from Torne River showed large variations in the strontium concentrations (1525-3650 μg/g). These otolith data form a database to be used for provenance studies of wild adult whitefish caught at sea. The applicability of the database was evaluated by analyzing the core of polished otoliths from 11 whitefish from a test site at sea in the Larsmo archipelago. Our results show that by analyzing strontium in the otolith core, we can differentiate between hatchery-origin and wild-origin whitefish, but not always between river and sea spawning whitefish.

  13. Renewable Energy and Proven Oil Reserves Relation: Evidence from OPEC Members

    Directory of Open Access Journals (Sweden)

    Mehmet Arcan TUZCU

    2014-12-01

    Full Text Available The well documented literature on the relation between energy consumption and climate change has been extended by the addition of renewable energy consumption. Several studies show its impact on technical efficiency, per capita income or carbon dioxide (CO2 emission levels for developed and developing countries. However, to the extent of our knowledge, very few of them state the importance of renewable energy for the countries where the main type of fossil fuels, oil, is exported. This study aims to explore the association between renewable energy, real gross domestic product (GDP, CO2 emission level, real oil prices as well as the proven oil reserves for seven members of Organization of the Petroleum Exporting Countries (OPEC. The analyses are conducted using panel data techniques, namely fixed effect – random effect tests. Our results show a positive and significant relation between renewable energy consumption, and real GDP and CO2 emission level. A statistically not significant coefficient is found for the relation between renewable energy and the proven oil reserves. The relation between energy and real oil prices is also insignificant.

  14. Antral follicle count in normal (fertility-proven) and infertile Indian women.

    Science.gov (United States)

    Agarwal, Arjit; Verma, Ashish; Agarwal, Shubhra; Shukla, Ram Chandra; Jain, Madhu; Srivastava, Arvind

    2014-07-01

    Antral follicle count (AFC) has been labeled as the most accurate biomarker to assess female fecundity. Unfortunately, no baseline Indian data exists, and we continue using surrogate values from the Western literature (inferred from studies on women, grossly different than Indian women in morphology and genetic makeup). (1) To establish the role of AFC as a function of ovarian reserve in fertility-proven and in subfertile Indian women. (2) To establish baseline cut-off AFC values for Indian women. Prospective observational case-control study. Thirty patients undergoing workup for infertility were included and compared to equal number of controls (women with proven fertility). The basal ovarian volume and AFC were measured by endovaginal. USG the relevant clinical data and hormonal assays were charted for every patient. SPSS platform was used to perform the Student's t-test and Mann-Whitney U-test for intergroup comparisons. Correlations were determined by Pearson's ranked correlation coefficient. Regression analysis revealed the highest correlation of AFC and age in fertile and infertile patients with difference in mean AFC of both the groups. Comparison of the data recorded for cases and controls showed no significant difference in the mean ovarian volume. AFC has the closest association with chronological age in normal and infertile Indian women. The same is lower in infertile women than in matched controls. Baseline and cut-off values in Indian women are lower than that mentioned in the Western literature.

  15. Rooting Ability of Melia volkensii Cuttings Under Different Auxin Concentration Levels and Provenances

    International Nuclear Information System (INIS)

    Oeba, V.O; Muok, B.; Odee, D

    2007-01-01

    Melia volkensii is one of the most popular fast growing agro-forestry tree species in East Africa's arid and semi arid lands. It is valued for for production of termite resistant timber. Kenya Forestry Research Institute is carrying out studies on management, improvement and domestication of species with a major focus on improving low germination mortality and other propagation methods. Vegetative propagation was investigated in order to supplement more seedlings for increased demand of the species. The objective of this study was to determine and predict the effect of varying levels of auxin concentrations on rooting of melia volkensii shoot cuttings under different provenances. The experiment was set in a split plot design and conducted in a non-mist propagator. The number of roots was recorded for every cutting in the experiment. Mean cumulative cutting percentage were analysed using ANOVA procedures by first checking homogeneity of variance; Pearson correlation were carried out to check the interrelation of the factors with rooting and Logistic ability of the cuttings. The results showed that cuttings inoculated with 0.3 mgl-1 s ignificantly (p n ot showing any rooting from three provenances. In conclusion 0.03 mgl-1 s hould be used for further vegetative propagation of M. vokensii. Cutting from Taveta inoculated with 0.3 mgl-1 w ould significantly increase the number of seedlings for planting

  16. ProvenCare: Geisinger's Model for Care Transformation through Innovative Clinical Initiatives and Value Creation.

    Science.gov (United States)

    2009-04-01

    Geisinger's system of care can be seen as a microcosm of the national delivery of healthcare, with implications for decision makers in other health plans. In this interview, Dr Ronald A. Paulus focuses on Geisinger's unique approach to patient care. In its core, this approach represents a system of quality and value initiatives based on 3 major programs-Proven Health Navigation (medical home); the ProvenCare model; and transitions of care. The goal of such an approach is to optimize disease management by using a rational reimbursement paradigm for appropriate interventions, providing innovative incentives, and engaging patients in their own care as part of any intervention. Dr Paulus explains the reasons why, unlike Geisinger, other stakeholders, including payers, providers, patients, and employers, have no intrinsic reasons to be concerned with quality and value initiatives. In addition, he says, an electronic infrastructure that could be modified as management paradigms evolve is a necessary tool to ensure the healthcare delivery system's ability to adapt to new clinical realities quickly to ensure the continuation of delivering best value for all stakeholders.

  17. Provenance and indirect dating study on Hongzhou Kiln porcelains by INAA

    International Nuclear Information System (INIS)

    Feng, X.Q.; Feng, S.L.; Fan, C.S.; Zhang, W.J.; Quan, K.S.

    2005-01-01

    Hongzhou Kiln is one of the six leading celadon kilns in Tang Dynasty and plays an important role in the history of Chinese ceramics for its diverse decoration styles and innovative technology. Archaeologists divided Hongzhou Kiln production into 8 periods, i.e. Eastern Han and Eastern Wu, Western Jin, Eastern Jin, Southern Dynasties, Sui, Early Tang, Middle Tang, Late Tang and Five Dynasties. Up to now, 26 kiln sites have been discovered and excavated. A study on the chemical composition of the porcelains of different periods and provenance will help to know the developing process of Hongzhou celadon such as variation of raw materials, recipes, manufacturing technology, causes of prosperity and decline, etc. Over 200 sherds were collected and their body samples were analyzed by INAA. The compositional differences between samples with the same period but different provenance were observed. The contents of Na, Rb, Ba, Fe, Th, U, etc were found to be different among samples from different periods, which implies they may be used to identify the manufacturing age. The analytical data were further processed by principal component analysis (PCA). The statistical results show that all the sherds can be classified into 5 groups, (1) Eastern Han and Eastern Wu; (2) Western Jin, Eastern Jin and Southern Dynasties; (3) Sui; (4) Early Tang and Middle Tang; (5) Late Tang and Five Dynasties.

  18. Application of INAA to archaeometry: Provenance determination of ancient Greek and Roman white marble artifacts

    International Nuclear Information System (INIS)

    Moens, L.J.; Roos, P.G.; De Paepe, P.A.

    1991-01-01

    During the past five years a large scale project was set up to develop a method to determine the provenance of ancient sculptures made of white marble. The problem was solved by applying three different methods of analysis to the material: INAA and EAAS for the determination of minor- and trace-elements, mass spectrometry measuring the relative abundance of the stable O- and C-isotopes and finally petrography. It was found that these three methods yield complementary information. The role of INAA is of capital importance since it allows one to determine the concentration of a large number of elements in a single sample. In addition the application of multi-variate statistical analysis was indispensable to extract the useful information from the data set. After the analysis of hundreds of quarry samples and the setting up of a reference data base, the method was applied to the provenance determination of about a hundred Green and Roman sculptures from several museums in Europe and the US

  19. Magnetic resonance imaging findings associated with surgically proven rotator interval lesions

    Energy Technology Data Exchange (ETDEWEB)

    Vinson, Emily N.; Major, Nancy M. [Duke University Medical Center, Department of Radiology, P.O. Box 3808, Durham, NC (United States); Higgins, Laurence D. [Brigham and Women' s Hospital, Department of Orthopedic Surgery, Boston, MA (United States)

    2007-05-15

    To identify shoulder magnetic resonance imaging (MRI) findings associated with surgically proven rotator interval abnormalities. The preoperative MRI examinations of five patients with surgically proven rotator interval (RI) lesions requiring closure were retrospectively evaluated by three musculoskeletal-trained radiologists in consensus. We assessed the structures in the RI, including the coracohumeral ligament, superior glenohumeral ligament, fat tissue, biceps tendon, and capsule for variations in size and signal alteration. In addition, we noted associated findings of rotator cuff and labral pathology. Three of three of the MR arthrogram studies demonstrated extension of gadolinium to the cortex of the undersurface of the coracoid process compared with the control images, seen best on the sagittal oblique images. Four of five of the studies demonstrated subjective thickening of the coracohumeral ligament, and three of five of the studies demonstrated subjective thickening of the superior glenohumeral ligament. Five of five of the studies demonstrated a labral tear. The MRI arthrogram finding of gadolinium extending to the cortex of the undersurface of the coracoid process was noted on the studies of those patients with rotator interval lesions at surgery in this series. Noting this finding - especially in the presence of a labral tear and/or thickening of the coracohumeral ligament or superior glenohumeral ligament - may be helpful in the preoperative diagnosis of rotator interval lesions. (orig.)

  20. Enhanced CANDU 6 (EC6): a proven mid-sized reactor with fuel cycle capability

    International Nuclear Information System (INIS)

    Hopwood, J.; Soulard, M.; Hastings, I.J.

    2011-01-01

    Atomic Energy of Canada (AECL) is finalizing development of the Enhanced CANDU 6 (EC6), which incorporates the CANDU 6's well-proven features, and adds enhancements that make the reactor even more safe and easier to operate. The EC6 is the only mid-sized reactor (700 MWe class) with a proven pedigree that meets modern reactor expectations and regulatory standards. It is sized for smaller grids and also has outstanding fuel-cycle capability. Changes are incremental and consistent with the CANDU 6 project approach. The EC6 utilizes modern computers and a distributed control system housed in an advanced control room which, along with automated testing and on-line diagnostics, make the plant easier and safer to operate, with minimal operator intervention. Containment and seismic capability are upgraded to meet modern standards. The first deployment of the EC6 is anticipated in Canada; international markets are also being pursued. AECL is performing a comprehensive review of the EC6 design in the wake of the Fukushima accident, will review lessons learned, and incorporate any necessary improvements into new build design. (author)

  1. Enhanced CANDU 6 (EC6): a proven mid-sized reactor with fuel cycle capability

    International Nuclear Information System (INIS)

    Hopwood, J.; Soulard, M.; Hastings, I.J.

    2011-01-01

    Atomic Energy of Canada (AECL) is finalizing development of the Enhanced CANDU 6 (EC6), which incorporates the CANDU 6's well-proven features, and enhancements that make the reactor even more safe and easier to operate. The EC6 is the only mid-sized reactor (700 MWe class) with a proven pedigree that meets modern reactor expectations and regulatory standards. It is sized for smaller grids and also has outstanding fuel-cycle capability. Changes are incremental and consistent with the CANDU 6 project approach. The EC6 utilizes modern computers and a distributed control system housed in an advanced control room which, along with automated testing and on-line diagnostics, make the plant easier and safer to operate, with minimal operator intervention. Containment and seismic capability are upgraded to meet modern standards. The first deployment of the EC6 is anticipated in Canada; international markets are also being pursued. AECL is performing a comprehensive review of the EC6 design in the wake of the Fukushima accident, will review lessons learned, and incorporate any necessary improvements into new build design. (author)

  2. Prevalence of Concomitant Sacroiliac joint Dysfunction in Patients With Image Proven Herniated Lumbar Discs

    Directory of Open Access Journals (Sweden)

    Salah Alalawi

    2009-05-01

    Full Text Available Background:Sacroiliac joint (SIJ dysfunction is a widely known but poorly defined cause of low back pain. To our knowledge, few published studies have been conducted to evaluate systematically the prevalence and significance of concomitant sacroiliac joint dysfunction in patients with herniated lumbar discs. As concomitant SIJ dysfunction in low back pain patients is likely to respond to particular noninvasive interventions such as manipulation,improved understanding of the relationship between these two diagnoses would improve clinical decision making and research.Methods:This study was designated to estimate the prevalence of concomitant sacroiliac joint dysfunction in sub acute low back pain patients with image proven discopathy and evaluate the theory that sacroiliac joint dysfunction can be a source of pain and functional disability in discopathy. A total of 202 patients with sub acute radicular back pain and MRI proven herniated lumbar discs underwent standardized   physiatrist history and physical examination, specified for detection of concomitant sacroiliac joint dysfunction.Results: Sacroiliac joint dysfunction is a concomitant finding in 72.3% of evaluated patients.There was significantly higher SIJ dysfunction prevalence in female patients (p <0.0001. Conclusion: SIJ dysfunction is a significant pathogenic factor with high possibility of occurrence in low back pain. Thus, in the presence of radicular and sacroiliac joint symptoms, SIJ dysfunction, regardless of intervertebral disc pathology, must be considered in clinical decisiomaking.

  3. Enhancing Privacy in Wearable IoT through a Provenance Architecture

    Directory of Open Access Journals (Sweden)

    Richard K. Lomotey

    2018-04-01

    Full Text Available The Internet of Things (IoT is inspired by network interconnectedness of humans, objects, and cloud services to facilitate new use cases and new business models across multiple enterprise domains including healthcare. This creates the need for continuous data streaming in IoT architectures which are mainly designed following the broadcast model. The model facilitates IoT devices to sense and deliver information to other nodes (e.g., cloud, physical objects, etc. that are interested in the information. However, this is a recipe for privacy breaches since sensitive data, such as personal vitals from wearables, can be delivered to undesired sniffing nodes. In order to protect users’ privacy and manufacturers’ IP, as well as detecting and blocking malicious activity, this research paper proposes privacy-oriented IoT architecture following the provenance technique. This ensures that the IoT data will only be delivered to the nodes that subscribe to receive the information. Using the provenance technique to ensure high transparency, the work is able to provide trace routes for digital audit trail. Several empirical evaluations are conducted in a real-world wearable IoT ecosystem to prove the superiority of the proposed work.

  4. The Italian Way to Carsharing

    Directory of Open Access Journals (Sweden)

    Antonio Laurino

    2012-10-01

    Full Text Available Carsharing (CS is increasing its role worldwide as an alternative transport mode, often more sustainable than private transport with self-owned vehicles. We first focus on the main characteristics of those services and on the impacts they generated, starting from the analysis of  the literature on this topic. CS initiatives are growing everywhere, however numbers are still minor and impacts are still far from a level that can deliver significant aggregate benefits. This paper studies the existing Italian carsharing experiences, trying to understand its strengths, that have allowed its development, but also possible limits and weaknesses. The presence of a national coordination structure (Iniziativa Carsharing - ICS, unique in Europe and created to boost local initiatives providing standardisation and interoperability, surely helped the development of the system. Some initiatives have been successful in terms of membership (in particular Milan, Venice and Turin, but others have been discontinued. Italian users’ characteristics are similar to the ones of users abroad: the majority of users are well educated male, living in small households having one or no cars and using public transport every day. At present, Italian drivers generally still show a scarce propensity to share their cars, considered more as “goods” than as “services”. A case study in Milan, the first and most successful initiative in Italy, shows a significant increase in CS membership after the implementation of a city charging scheme (“Ecopass” at first, then “Area C”. Moving shared cars from garages to “on the street parking” has proved successful too. The usage of the service has changed in time: users have increased (+151% more than runs (+137% – 2006 to 2009, while average length and duration of each run have decreased (-30% and -43% respectively, 2006 to 2010. Milan’s initiative also put s into practice many incentives for users that likely

  5. A user-orientated approach to provenance capture and representation for in silico experiments, explored within the atmospheric chemistry community.

    Science.gov (United States)

    Martin, Chris J; Haji, Mohammed H; Jimack, Peter K; Pilling, Michael J; Dew, Peter M

    2009-07-13

    We present a novel user-orientated approach to provenance capture and representation for in silico experiments, contrasted against the more systems-orientated approaches that have been typical within the e-Science domain. In our approach, we seek to capture the scientist's reasoning in the form of annotations as an experiment evolves, while using the scientist's terminology in the representation of process provenance. Our user-orientated approach is applied in a case study within the atmospheric chemistry domain: we consider the design, development and evaluation of an electronic laboratory notebook, a provenance capture and storage tool, for iterative model development.

  6. Delivering business analytics practical guidelines for best practice

    CERN Document Server

    Stubbs, Evan

    2013-01-01

    AVOID THE MISTAKES THAT OTHERS MAKE - LEARN WHAT LEADS TO BEST PRACTICE AND KICKSTART SUCCESS This groundbreaking resource provides comprehensive coverage across all aspects of business analytics, presenting proven management guidelines to drive sustainable differentiation. Through a rich set of case studies, author Evan Stubbs reviews solutions and examples to over twenty common problems spanning managing analytics assets and information, leveraging technology, nurturing skills, and defining processes. Delivering Business Analytics also outlines the Data Scientist's Code, fifteen principle

  7. Beyond binaries : a way forward for comparativeeducation

    Directory of Open Access Journals (Sweden)

    Marianne Larsen

    2012-09-01

    Full Text Available Binary discourses shape and produce the stories we construct about the field of comparative education. In the first part of this article, I review a set of binary discourses that have characterized social science research since the Enlightenment, including: quantitative-qualitative, nomotheticidiographic, inductive-deductive, and practice-theory. We can think of each of these binaries at opposite ends of a set of spectrums. In the second section of the paper, I show some of the ways in which these binaries have influenced the ways that we write and talk about research within the field of comparative education. I refer to the notion of binary discourses and the productive capacity of these discourses to shape our field. I then outline some critiques of these binaries to demonstrate the inherent limitations of binary discourses, and why we need to move beyond binaries in our research, and in the histories about our field. Finally, I present some tentative conclusions on ways to get ourselves out of the trap of binary thinking.Los discursos binarios moldean y producen los argumentos que construimos sobre la disciplina de la Educación Comparada. En la primera parte de este artículo, analizo un conjunto de discursos binarios que han caracterizado la investigación en Ciencias Sociales desde la Ilustración, incluyendo la cuantitativa-cualitativa, nomotética-idiográfica, inductivadeductiva, y la práctica-teoría. Podemos pensar sobre cada uno de estos discursos binarios como argumentos en los polos de un conjunto de posibilidades. En la segunda sección del artículo, revelo algunos modos en los que estos discursos binarios han influenciado las formas a través de las cuales escribimos y analizamos la investigación en el ámbito de la Educación Comparada. Analizo la noción de discursos binarios y la capacidad productiva de estos discursos de impactar nuestra ciencia. Seguidamente expongo algunas críticas de estos discursos binarios con el

  8. 8 ways to build collaborative teams.

    Science.gov (United States)

    Gratton, Lynda; Erickson, Tamara J

    2007-11-01

    Executing complex initiatives like acquisitions or an IT overhaul requires a breadth of knowledge that can be provided only by teams that are large, diverse, virtual, and composed of highly educated specialists. The irony is, those same characteristics have an alarming tendency to decrease collaboration on a team. What's a company to do? Gratton, a London Business School professor, and Erickson, president of the Concours Institute, studied 55 large teams and identified those with strong collaboration despite their complexity. Examining the team dynamics and environment at firms ranging from Royal Bank of Scotland to Nokia to Marriott, the authors isolated eight success factors: (1) "Signature" relationship practices that build bonds among the staff, in memorable ways that are particularly suited to a company's business. (2) Role models of collaboration among executives, which help cooperation trickle down to the staff. (3) The establishment of a "gift culture," in which managers support employees by mentoring them daily, instead of a transactional "tit-for-tat culture", (4) Training in relationship skills, such as communication and conflict resolution. (5) A sense of community, which corporate HR can foster by sponsoring group activities. (6) Ambidextrous leadership, or leaders who are both task-oriented and relationship-oriented. (7) Good use of heritage relationships, by populating teams with members who know and trust one another. (8) Role clarity and task ambiguity, achieved by defining individual roles sharply but giving teams latitude on approach. As teams have grown from a standard of 20 members to comprise 100 or more, team practices that once worked well no longer apply. The new complexity of teams requires companies to increase their capacity for collaboration, by making long-term investments that build relationships and trust, and smart near-term decisions about how teams are formed and run.

  9. How business schools lost their way.

    Science.gov (United States)

    Bennis, Warren G; O'Toole, James

    2005-05-01

    Business schools are facing intense criticism for failing to impart useful skills, failing to prepare leaders, failing to instill norms of ethical behavior--and even failing to lead graduates to good corporate jobs. These criticisms come not just from students, employers, and the media but also from deans of some of America's most prestigious B schools. The root cause oftoday's crisis in management education, assert Warren G. Bennis and James O'Toole, is that business schools have adopted an inappropriate--and ultimately self-defeating--model of academic excellence. Instead of measuring themselves in terms of the competence of their graduates, or by how well their faculty members understand important drivers of business performance, they assess themselves almost solely by the rigor of their scientific research. This scientific model is predicated on the faulty assumption that business is an academic discipline like chemistry or geology when, in fact, business is a profession and business schools are professional schools--or should be. Business school deans may claim that their schools remain focused on practice, but they nevertheless hire and promote research-oriented professors who haven't spent time working in companies and are more comfortable teaching methodology than messy, multidisciplinary issues--the very stuff of management. The authors don't advocate a return to the days when business schools were glorified trade schools. But to regain relevancy, they say, business schools must rediscover the practice of business and find a way to balance the dual mission of educating practitioners and creating knowledge through research.

  10. Resource diversity and provenance underpin spatial patterns in functional diversity across native and exotic species.

    Science.gov (United States)

    Méndez, Verónica; Wood, Jamie R; Butler, Simon J

    2018-05-01

    Functional diversity metrics are increasingly used to augment or replace taxonomic diversity metrics to deliver more mechanistic insights into community structure and function. Metrics used to describe landscape structure and characteristics share many of the same limitations as taxonomy-based metrics, particularly their reliance on anthropogenically defined typologies with little consideration of structure, management, or function. However, the development of alternative metrics to describe landscape characteristics has been limited. Here, we extend the functional diversity framework to characterize landscapes based on the diversity of resources available across habitats present. We then examine the influence of resource diversity and provenance on the functional diversities of native and exotic avian communities in New Zealand. Invasive species are increasingly prevalent and considered a global threat to ecosystem function, but the characteristics of and interactions between sympatric native and exotic communities remain unresolved. Understanding their comparative responses to environmental change and the mechanisms underpinning them is of growing importance in predicting community dynamics and changing ecosystem function. We use (i) matrices of resource use (species) and resource availability (habitats) and (ii) occurrence data for 62 native and 25 exotic species and 19 native and 13 exotic habitats in 2015 10 × 10 km quadrats to examine the relationship between native and exotic avian and landscape functional diversity. The numbers of species in, and functional diversities of, native and exotic communities were positively related. Each community displayed evidence of environmental filtering, but it was significantly stronger for exotic species. Less environmental filtering occurred in landscapes providing a more diverse combination of resources, with resource provenance also an influential factor. Landscape functional diversity explained a greater

  11. Age and provenance of Triassic to Cenozoic sediments of West and Central Sarawak, Malaysia

    Science.gov (United States)

    Breitfeld, H. Tim; Galin, Thomson; Hall, Robert

    2015-04-01

    Sarawak is located on the northern edge of Sundaland in NW Borneo. West and Central Sarawak include parts of the Kuching and Sibu Zones. These contain remnants of several sedimentary basins with ages from Triassic to Cenozoic. New light mineral, heavy mineral and U-Pb detrital zircon ages show differences in provenance reflecting the tectonic evolution of the region. The oldest clastic sediments are Triassic (Sadong Formation and its deep marine equivalent Kuching Formation). They were sourced by a Triassic (Carnian to Norian) volcanic arc and reworked Paleoproterozoic detritus derived from Cathaysialand. The Upper Jurassic to Cretaceous Pedawan Formation is interpreted as forearc basin fill with distinctive zircon populations indicating subduction beneath present-day West Sarawak which initiated in the Late Jurassic. Subsequent subduction until the early Late Cretaceous formed the Schwaner Mountains magmatic arc. After collision of SW Borneo and other microcontinental fragments with Sundaland in the early Late Cretaceous, deep marine sedimentation (Pedawan Formation) ceased, and there was uplift forming the regional Pedawan-Kayan unconformity. Two episodes of extension followed and were responsible for basin development on land in West Sarawak from the latest Cretaceous onwards, probably in a pull-apart setting. The first episode is associated with sediments of the Kayan Group, deposited in the Latest Cretaceous (Maastrichtian) to Eocene, and the second episode with Upper Eocene sediments of the Ketungau Basin. Zircon ages indicate volcanic activity throughout the Early Cenozoic in NW Borneo, and inherited zircon ages indicate reworking of Triassic and Cretaceous rocks. A large deep marine basin, the Rajang Basin, was north of the Lupar Line Fault in Central Sarawak (Sibu Zone) from the Late Cretaceous to the Late Eocene. Zircons from sediments of the Rajang Basin indicate they have similar ages and provenance to contemporaneous terrestrial sediments of the Kayan

  12. Sediment provenance in the Laxmi Basin of the Arabian Sea during the last 800 kyrs

    Science.gov (United States)

    Khim, B. K.; Horikawa, K.; Asahara, Y.; Kim, J. E.; Ikehara, M.; Lee, J.

    2017-12-01

    International Ocean Discovery Program Expedition 355 conducted to drill 1109.4 m penetration at Site U1456 in the Laxmi Basin of the Arabian Sea. Four lithologic units are defined onboard at Site U1456 (Pandey et al., 2016). Unit I is 121 m long, consisting mostly of pelagic carbonates (nannofossil ooze and/or foraminifera-rich nannofossil ooze) interbedded with thin terrigenous (clay, silt, and sand) turbidite layers. The age model of Unit I was determined by the correlation of δ18O fluctuations of planktonic foraminifera (Globigerinoides ruber) to LR04 stacks, estimating 1.2 Ma. A total of 60 samples, collected in the context of magnetic susceptibility (MS) changes at a discrete interval from a composite section (Holes U1456A and U1456C) of Unit I, were analyzed to measure Nd and Sr isotopes of detrital fraction. Based on Nd and Sr isotopes, the sediment provenance in the Laxmi Basin during the last 800 kyrs was traced in response to the monsoon activity between the interglacial and glacial periods. ɛNd and 87Sr/86Sr vary in a range from -12.4 to -8.0 and from 0.712 to 0.727, respectively. The correlation between ɛNd and 87Sr/86Sr is quite linear, indicating that the sediments were provided mainly by two dominant sources. Considering the ɛNd and 87Sr/86Sr end-members of sediment sources (i.e., river sediments), the Tapi River and Narmada River are the main contributors of sediments to Site U1456 with a little influence by the modern Indus River. However, the glacial sediments from the Indus River and the Mahi River may supply an additional fraction, leading to less ɛNd and more 87Sr/86Sr at Site U1456. Judged by the sediment sources, the sediments in the Laxmi Basin are characterized by the mixture of different provenances. In addition, it should be noted that the low ɛNd and high 87Sr/86Sr values coincide largely with high MS and vice versa, irrespectively of the glacial-interglacial change. Thus, rather than the sediment provenances, ɛNd and 87Sr/86Sr

  13. Stratigraphy and sediment provenance of the Karoo Supergroup in Southern Botswana using geochemical indicators

    Science.gov (United States)

    Diskin, Sorcha; Wendorff, Marek; Lasarwe, Reneilwe

    2010-05-01

    /Yb)N plotted against CeN shows a relationship between REE fractionation and provenance, the samples from the Ecca's lacustrine Kwetla Formation and Bori Formation fall into the Intermediate Igneous Provenance Field along with data from the Dwyka, whereas the deltaic Kweneng and Boritse Formation belong to the quartzose provenance field. This agrees with indicators from the major element discriminators.

  14. Mineralogy of Nicobar Fan turbidites (IODP Leg 362): Himalayan provenance and diagenetic control.

    Science.gov (United States)

    Limonta, M.; Garzanti, E.; Ando, S.; Carter, A.; Milliken, K. L.; Pickering, K. T.

    2017-12-01

    In this study we use quantitative petrographic and heavy-mineral data on silt-sized and sand-sized sediments from the Nicobar Fan turbiditic depositional system to unravel their provenance and discriminate between pre-depositional and post-depositional processes controlling sediment mineralogy. Eighteen samples from the two drill sites U1480 e U1481, collected down to a depth of 1400 m during International Ocean Discovery Expedition 362, were selected for analysis. A complete section of the sedimentary section overlying oceanic basaltic basement was recovered at the U1480 drill site, whereas the U1481 drill site, located 35 km to the southeast, focused on the deeper interval of the sedimentary section overlying oceanic basement. Here we illustrate the compositional trends observed throughout the recovered succession, and compare heavy-mineral suites characterizing sediments drilled at the two U1480 and U1481 sites to check for potential differences in sediment provenance over a relatively short distance in trench settings. Diagenetic control with increasing burial depth was also specifically investigated. In Pleistocene sediments at depths of a few tens of meters only, rich heavy-mineral assemblages include mainly hornblende, epidote, and garnet, associated with apatite, clinopyroxene, tourmaline, sillimanite, kyanite, zircon, titanite, and rare staurolite and rutile, testifying to long-distance provenance from the Himalayan range via the Ganga-Brahmaputra fluvio-deltaic-turbiditic system. Heavy-mineral concentration shows a progressive decrease with burial depth, pointing to selective diagenetic dissolution of less durable detrital minerals. Clinopyroxene becomes rare below 400 m depth and was not recorded below 500 m depth, where amphibole decreases notably in relative abundance. More durable heavy minerals, including zircon, tourmaline, apatite, garnet and epidote, consequently tend to be relatively enriched with increasing age and burial depth. Petrographic and

  15. Distribution, provenance and early diagenesis of major and trace metals in sediment cores from the Mandovi estuary, western India

    Digital Repository Service at National Institute of Oceanography (India)

    Prajith, A.; Rao, V.P.; Chakraborty, P.

    Major elements and trace metals were analyzed in four sediment cores recovered along a transect in the Mandovi estuary for their distribution, provenance and early diagenesis. The sediments were clayey silts in cores from the upper/lower estuary...

  16. Effet du travail du sol sur la productivité de différentes provenances de Jatropha curcas

    Directory of Open Access Journals (Sweden)

    Barro Lamine

    2013-05-01

    Full Text Available Jatropha curcas L. (JCL, an oleaginous species traditionally used as live fence, is massively planted in Africa to produce biofuel. However, the influence of many factors on its productivity remains scientifically unknown. This study aimed to assess the effect of subsoiling (factor 1 : subsoiling and control and plant material provenance (factor 2 : Casamance and Diobass on its development and productivity. The results have shown two years after planting that plant provenance had a significant effect on growth variables, plant above ground architecture and fruits number. The Casamance provenance has generally produced the highest values. Subsoiling did not have a significant effect on most of the studied variables, except for low primary branches number and fruiting branches number. Even more, subsoiling appeared to enhance JCL growth. These results have allowed to understand the importance of provenances but also of soil preparation on the performances of JCL and to identify priority areas for research.

  17. Food safety measurement issues. Way forward

    International Nuclear Information System (INIS)

    Venkatesh Iyengar

    2013-01-01

    Ensuring food safety (FS) is a persistent concern frequently faced by many countries. Safeguarding the quality of food that is fit for human consumption is the primary responsibility of the governmental regulatory agencies. For most part, agro-industries and food processors assume voluntary leadership for producing safe food. However, in the event of FS breach, the regulatory responsibility kicks into identify and rectify the situation. Notwithstanding whether it is the regulator or the industry that institutes the remedial action (e.g. improved hygiene and refined agricultural and manufacturing practices), the role of laboratory measurements is central in safeguarding the integrity of a functioning FS system. There are many analytical tools available to implement this task, such as validated analytical methods, natural matrix reference materials, field tested monitoring systems (proactive assessment) and effective surveillance systems (constant vigilance to prevent repeat safety violations). Way forward: existing FS tools are insufficient and should be strengthened with innovative approaches. Examples are: assembling swift intervention logistics to face FS breaches; rapid response systems including communication; robust metrology based measurement systems located at strategic locations in the country; and inter-disciplinary human resource to match the need for capacity development. These issues are discussed. (author)

  18. Study of provenance properties on ancient celadon of different kilns with NAA

    International Nuclear Information System (INIS)

    Feng Songlin; Fan Dongyu; Feng Xiangqian; Xu Qing; Cheng Lin; Lei Yong; Shen Yueming; Zhang Wenjiang; Zhua Zhenxi

    2005-01-01

    Provenance characteristic is an important scientific parameter to identify ancient porcelain wares unearthed from sites and graves. The porcelain samples of Si-Long-Kou Yue kiln of Zhejiang Province, Hong-Zhou kiln of Jiangxi Province and Yao-Zhou kiln of Shanxi Province have been analyzed with neutron activation analysis (NAA). The experimental data were studied with statistic methods. The results show that the chemical compositions of porcelain body samples for three kilns were different. The difference was able to be identified. The body materials of both Si-Long-Kou Yue kiln and Hong-Zhou kiln of Jiangxi were similar. The samples of Yao-Zhou kiln in north of China existed obvious difference. (authors)

  19. Chest CT findings in EBUS-TBNA-proven anthracosis in enlarged mediastinal lymph nodes

    Energy Technology Data Exchange (ETDEWEB)

    Kirchner, J. [Allgemeines Krankenhaus Hagen (Germany). Dept. of Interventional and Diagnostic Radiology; Mueller, P. [Allgemeines Krankenhaus Hagen (Germany). Dept. of Medicine; Broll, M.; Kirchner, E.M. [Sana Klinikum Duisburg (Germany). Dept. of Medicine; Pomjanski, N.; Biesterfeld, S. [University Hospital Duesseldorf (Germany). Dept. of Pathology; Liermann, D. [Marien Hospital, Herne (Germany). Dept. of Diagnostic and Interventional Radiology and Nuclear Medicine; Kickuth, R. [University Hospital Wuerzburg (Germany). Dept. of Radiology

    2014-12-15

    We demonstrate the multislice computed tomography (MSCT) findings of endobronchial ultrasound-guided transbronchial needle aspiration (EBUS-TBNA)-proven hilar and mediastinal lymph node enlargement with signs of anthracosis. 53 enlarged lymph nodes in 39 patients (28 male, 11 female) with EBUS-TBNA-confirmed anthracosis were analyzed retrospectively. The mean short axis diameter of the enlarged lymph nodes with signs of anthracosis was 13.7 mm. Lymph nodes most often showed an oval shape (84%) and were well defined in 66% of cases. Lymph node confluence was observed in 32% of cases. Calcifications were documented in 24.5% of cases. Contrast enhancement and fatty involution were seen seldom (3.8%). Lymph node necrosis was not seen. Lymph node anthracosis may be found most often in enlarged, well defined lymph nodes with an oval shape, frequently associated with confluence and calcifications.

  20. Cheminformatics and the Semantic Web: adding value with linked data and enhanced provenance

    Science.gov (United States)

    Frey, Jeremy G; Bird, Colin L

    2013-01-01

    Cheminformatics is evolving from being a field of study associated primarily with drug discovery into a discipline that embraces the distribution, management, access, and sharing of chemical data. The relationship with the related subject of bioinformatics is becoming stronger and better defined, owing to the influence of Semantic Web technologies, which enable researchers to integrate heterogeneous sources of chemical, biochemical, biological, and medical information. These developments depend on a range of factors: the principles of chemical identifiers and their role in relationships between chemical and biological entities; the importance of preserving provenance and properly curated metadata; and an understanding of the contribution that the Semantic Web can make at all stages of the research lifecycle. The movements toward open access, open source, and open collaboration all contribute to progress toward the goals of integration. PMID:24432050

  1. A Provenance-Based Infrastructure to Support the Life Cycle of Executable Papers

    DEFF Research Database (Denmark)

    2011-01-01

    As publishers establish a greater online presence as well as infrastructure to support the distribution of more varied information, the idea of an executable paper that enables greater interaction has developed. An executable paper provides more information for computational experiments and results...... than the text, tables, and figures of standard papers. Executable papers can bundle computational content that allow readers and reviewers to interact, validate, and explore experiments. By including such content, authors facilitate future discoveries by lowering the barrier to reproducing...... and extending results. We present an infrastructure for creating, disseminating, and maintaining executable papers. Our approach is rooted in provenance, the documentation of exactly how data, experiments, and results were generated. We seek to improve the experience for everyone involved in the life cycle...

  2. Epidemiological and microbiological characteristics of culture-proven acute otitis media in Taiwanese children.

    Science.gov (United States)

    Chiu, Nan-Chang; Lin, Hsin-Yi; Hsu, Chyong-Hsin; Huang, Fu-Yuan; Lee, Kuo-Sheng; Chi, Hsin

    2012-10-01

    Acute otitis media (AOM) is one of the most common diseases in children. Here, we describe the epidemiological and microbiological characteristics of AOM in Taiwanese children over a 10-year period. We retrospectively enrolled pediatric patients with culture-proven AOM who were treated at Mackay Memorial Hospital, Taipei between 1999-2008. The data include demographic characteristics, clinical history, and microbiological characteristics. Six hundred and fourteen patients were included. The male:female ratio was 1.4 (p 5 years of age and was associated with spontaneous otorrhea (pculture-confirmed AOM in Taiwanese children. Although S. pyogenes is not as common, it usually causes AOM in children > 5 years of age and is associated with spontaneous otorrhea. Copyright © 2012. Published by Elsevier B.V.

  3. Assessment of biopsy-proven liver fibrosis by two-dimensional shear wave elastography

    DEFF Research Database (Denmark)

    Herrmann, Eva; de Lédinghen, Victor; Cassinotto, Christophe

    2018-01-01

    sites, as well as on successful transient elastography (TE) in 665 patients. Most patients had chronic hepatitis C (HCV, n = 379), hepatitis B (HBV, n = 400) or non-alcoholic fatty liver disease (NAFLD, n = 156). AUROCs of 2D-SWE in patients with HCV, HBV and NAFLD were 86.3%, 90.6% and 85...... equipment were contacted to share their data. Retrospective statistical analysis used direct and paired receiver operating characteristic (ROC) and area under the ROC curve (AUROC) analysis accounting for random effects. RESULTS: Data on both 2D-SWE and liver biopsy was available in 1134 patients from 13......BACKGROUND AND AIMS: 2D shear wave elastography (2D-SWE) has proven to be efficient for the evaluation of liver fibrosis in small to moderate size clinical trials. We aimed at running a larger scale meta-analysis of individual data. METHODS: Centers which have worked with Aixplorer ultrasound...

  4. Tracking and Establishing Provenance of Earth Science Datasets: A NASA-Based Example

    Science.gov (United States)

    Ramapriyan, Hampapuram K.; Goldstein, Justin C.; Hua, Hook; Wolfe, Robert E.

    2016-01-01

    Information quality is of paramount importance to science. Accurate, scientifically vetted and statistically meaningful and, ideally, reproducible information engenders scientific trust and research opportunities. Not surprisingly, federal bodies (e.g., NASA, NOAA, USGS) have very strictly affirmed the importance of information quality in their product requirements. So-called Highly Influential Scientific Assessments (HISA) such as The Third US National Climate Assessment (NCA3) published in 2014 undergo a very rigorous review process to ensure transparency and credibility. To support the transparency of such reports, the U.S. Global Change Research Program (USGCRP) has developed the Global Change Information System (GCIS). A recent activity was performed to trace the provenance as completely as possible for all NCA3 figures that were predominantly based on NASA data. This poster presents the mechanics of that project and the lessons learned from that activity.

  5. Provenance and indirect dating study on Hongzhou Kiln porcelains by INAA

    International Nuclear Information System (INIS)

    Feng, X.Q.; Feng, S.L.; Quan, K.S.

    2007-01-01

    Over 100 sherds were collected from Hongzhou Kiln of Jiangxi Province, China and their body samples were analyzed by INAA. The compositional differences between samples with the same period but different provenance were observed. The contents of Na, Rb, Ba, Fe, Th, U, etc., were found to be different among samples from different periods, which implies they may be used to identify the manufacturing age indirectly. The analytical data were further processed by principal components analysis (PCA). The statistical results show that all the sherds can be classified into 5 groups: (1) Eastern Han and Eastern Wu; (2) Western Jin, Eastern Jin and Southern Dynasties; (3) Sui; (4) Early Tang and Middle Tang; (5) Late Tang and Five Dynasties. (author)

  6. Study on provenance of ancient Yaozhou porcelain bodies by fingerprint elements scatter analysis

    International Nuclear Information System (INIS)

    Zhao Weijuan; Guo Min; Gao Zhengyao; Li Guoxia; Xie Jianzhong

    2004-01-01

    25 samples of Yaozhou porcelain bodies, 3 samples of the tri-color pottery bodies during the Tang Dynasty, 1 samples of Saggar material during Song Dynasty and 4 samples of clay mineral taken from the place near Yaozhou Kiln Museum was selected. The technique of neutron activation analysis (NAA) has been employed to measure the content of 29 kinds of elements in the samples. 8 elements of them were selected as fingerprint elements to make scatter analysis. The conclusion is that the ancient Yaozhou porcelain bodies produced by different kilns have long shared a stable and concentrated raw material sources. Both the tri-colored pottery bodies made in Yaozhou Kilns during the Tang Dynasty and the Yaozhou porcelain bodies are from the same provenance. (authors)

  7. The fingerprint elements analysis on the provenance relation between ancient chinese Ru porcelain and Jun porcelain

    International Nuclear Information System (INIS)

    Zhao Weijuan; Xie Jianzhong; Li Guoxia; Gao Zhengyao; Li Rongwu; Zhang Bin; Feng Songlin; Huang Zhongxiang; Jia Xiuqin; Han Song

    2002-01-01

    The 46 samples of glazes and bodies of the ancient Chinese Ru porcelain, Jun Porcelain and imitative porcelain were analyzed by neutron activation analysis (NAA). The contents of 36 elements for each sample were measured, the eight elements were chosen as the fingerprint elements to complete scatter analysis. The result showed that the ancient Chinese Ru porcelain and Jun porcelain had almost identical and stable sources of raw materials. The close provenance relation between ancient Chinese Ru porcelain and Jun porcelain was preliminarily verified. It is found that most modern Jun porcelain samples were similar to the ancient Chinese Jun porcelain, three modern Ru porcelain samples were similar to the ancient Chinese Ru porcelain. Jingdezhen porcelain has no relation to Ru porcelain and Jun porcelain

  8. Gold Provenance Studies for Romanian Archaeological Objects Using Micro-SR-XRF

    Science.gov (United States)

    Vasilescu, Angela; Constantinescu, Bogdan; Bugoi, Roxana; Radtke, Martin; Reinholz, Uwe; Simon, Rolf

    2010-04-01

    Studies by Synchrotron Radiation—X-Ray Fluorescence (SR-XRF) for the search of the presence of trace elements like Sb, Sn, Te and Pb in archaeological metallic objects found on the territory of Romania—old coins and Bronze Age jewelry, aimed to determine the provenance of the gold used in their manufacture. The results are compared with the detailed elemental composition of alluvial or primary gold samples, obtained by the same technique. This work attempted to establish the origin of the gold used for the mint of two different types of koson coins. We found that the kosons with monogram are made of refined gold, while the one used for the kosons without monogram is mainly alluvial. The gold used in the manufacture of the Calarasi Vulchitrun-type disk and the Tauteu hair ring is also of alluvial origin.

  9. Potential of Sr isotopic analysis in ceramic provenance studies: Characterisation of Chinese stonewares

    International Nuclear Information System (INIS)

    Li Baoping; Zhao Jianxin; Greig, Alan; Collerson, Kenneth D.; Zhuo Zhenxi; Feng Yuexin

    2005-01-01

    We compare the trace element and Sr isotopic compositions of stoneware bodies made in Yaozhou and Jizhou to characterise these Chinese archaeological ceramics and examine the potential of Sr isotopes in provenance studies. Element concentrations determined by ICP-MS achieve distinct characterisation for Jizhou samples due to their restricted variation, yet had limited success with Yaozhou wares because of their large variability. In contrast, 87 Sr/ 86 Sr ratios in Yaozhou samples have a very small variation and are all significantly lower than those of Jizhou samples, which show a large variation and cannot be well characterised with Sr isotopes. Geochemical interpretation reveals that 87 Sr/ 86 Sr ratios will have greater potential to characterise ceramics made of low Rb/Sr materials such as kaolin clay, yet will show larger variations in ceramics made of high Rb/Sr materials such as porcelain stone

  10. Potential of Sr isotopic analysis in ceramic provenance studies: Characterisation of Chinese stonewares

    Energy Technology Data Exchange (ETDEWEB)

    Li Baoping [Advanced Centre for Queensland University Isotope Research Excellence (ACQUIRE), University of Queensland, Brisbane, Qld 4072 (Australia)]. E-mail: b.li@uq.edu.au; Zhao Jianxin [Advanced Centre for Queensland University Isotope Research Excellence (ACQUIRE), University of Queensland, Brisbane, Qld 4072 (Australia); Greig, Alan [Advanced Centre for Queensland University Isotope Research Excellence (ACQUIRE), University of Queensland, Brisbane, Qld 4072 (Australia); Collerson, Kenneth D. [Advanced Centre for Queensland University Isotope Research Excellence (ACQUIRE), University of Queensland, Brisbane, Qld 4072 (Australia); Zhuo Zhenxi [Shaanxi Provincial Institute of Archaeology, Xi' an 710054 (China); Feng Yuexin [Advanced Centre for Queensland University Isotope Research Excellence (ACQUIRE), University of Queensland, Brisbane, Qld 4072 (Australia)

    2005-11-15

    We compare the trace element and Sr isotopic compositions of stoneware bodies made in Yaozhou and Jizhou to characterise these Chinese archaeological ceramics and examine the potential of Sr isotopes in provenance studies. Element concentrations determined by ICP-MS achieve distinct characterisation for Jizhou samples due to their restricted variation, yet had limited success with Yaozhou wares because of their large variability. In contrast, {sup 87}Sr/{sup 86}Sr ratios in Yaozhou samples have a very small variation and are all significantly lower than those of Jizhou samples, which show a large variation and cannot be well characterised with Sr isotopes. Geochemical interpretation reveals that {sup 87}Sr/{sup 86}Sr ratios will have greater potential to characterise ceramics made of low Rb/Sr materials such as kaolin clay, yet will show larger variations in ceramics made of high Rb/Sr materials such as porcelain stone.

  11. Potential of Sr isotopic analysis in ceramic provenance studies: Characterisation of Chinese stonewares

    Science.gov (United States)

    Li, Bao-Ping; Zhao, Jian-Xin; Greig, Alan; Collerson, Kenneth D.; Zhuo, Zhen-Xi; Feng, Yue-Xin

    2005-11-01

    We compare the trace element and Sr isotopic compositions of stoneware bodies made in Yaozhou and Jizhou to characterise these Chinese archaeological ceramics and examine the potential of Sr isotopes in provenance studies. Element concentrations determined by ICP-MS achieve distinct characterisation for Jizhou samples due to their restricted variation, yet had limited success with Yaozhou wares because of their large variability. In contrast, 87Sr/86Sr ratios in Yaozhou samples have a very small variation and are all significantly lower than those of Jizhou samples, which show a large variation and cannot be well characterised with Sr isotopes. Geochemical interpretation reveals that 87Sr/86Sr ratios will have greater potential to characterise ceramics made of low Rb/Sr materials such as kaolin clay, yet will show larger variations in ceramics made of high Rb/Sr materials such as porcelain stone.

  12. Evaluation of colonoscopic allergen provocation as a diagnostic tool in dogs with proven food hypersensitivity reactions.

    Science.gov (United States)

    Allenspach, K; Vaden, S L; Harris, T S; Gröne, A; Doherr, M G; Griot-Wenk, M E; Bischoff, S C; Gaschen, F

    2006-01-01

    To evaluate the colonoscopic allergen provocation (COLAP) test as a new tool for the diagnosis of IgE-mediated food allergy. Oral food challenges as well as COLAP testing were performed in a colony of nine research dogs with proven immediate-type food allergic reactions. In addition, COLAP was performed in five healthy dogs. When compared with the oral challenge test, COLAP accurately determined 18 of 23 (73 per cent) positive oral challenge reactions (73 per cent) in dogs with food allergies and was negative in the healthy dogs. The accuracy of this new test may be higher than that for gastric sensitivity testing. Therefore, COLAP holds promise as a new test to confirm the diagnosis of suspect IgE-mediated food allergy in dogs.

  13. Responses to mild water deficit and rewatering differ among secondary metabolites but are similar among provenances within Eucalyptus species.

    Science.gov (United States)

    McKiernan, Adam B; Potts, Brad M; Brodribb, Timothy J; Hovenden, Mark J; Davies, Noel W; McAdam, Scott A M; Ross, John J; Rodemann, Thomas; O'Reilly-Wapstra, Julianne M

    2016-02-01

    Water deficit associated with drought can severely affect plants and influence ecological interactions involving plant secondary metabolites. We tested the effect of mild water deficit and rewatering on physiological, morphological and chemical traits of juvenile Eucalyptus globulus Labill. and Eucalyptus viminalis Labill. We also tested if responses of juvenile eucalypts to water deficit and rewatering varied within species using provenances across a rainfall gradient. Both species and all provenances were similarly affected by mild water deficit and rewatering, as only foliar abscisic acid levels differed among provenances during water deficit. Across species and provenances, water deficit decreased leaf water potential, above-ground biomass and formylated phloroglucinol compound concentrations, and increased condensed tannin concentrations. Rewatering reduced leaf carbon : nitrogen, and total phenolic and chlorogenic acid concentrations. Water deficit and rewatering had no effect on total oil or individual terpene concentrations. Levels of trait plasticity due to water deficit and rewatering were less than levels of constitutive trait variation among provenances. The overall uniformity of responses to the treatments regardless of native provenance indicates limited diversification of plastic responses when compared with the larger quantitative variation of constitutive traits within these species. These responses to mild water deficit may differ from responses to more extreme water deficit or to responses of juvenile/mature eucalypts growing at each locality. © The Author 2015. Published by Oxford University Press. All rights reserved. For Permissions, please email: journals.permissions@oup.com.

  14. Reporting on the Strategies Needed to Implement Proven Interventions: An Example From a "Real-World" Cross-Setting Implementation Study.

    Science.gov (United States)

    Gold, Rachel; Bunce, Arwen E; Cohen, Deborah J; Hollombe, Celine; Nelson, Christine A; Proctor, Enola K; Pope, Jill A; DeVoe, Jennifer E

    2016-08-01

    The objective of this study was to empirically demonstrate the use of a new framework for describing the strategies used to implement quality improvement interventions and provide an example that others may follow. Implementation strategies are the specific approaches, methods, structures, and resources used to introduce and encourage uptake of a given intervention's components. Such strategies have not been regularly reported in descriptions of interventions' effectiveness, or in assessments of how proven interventions are implemented in new settings. This lack of reporting may hinder efforts to successfully translate effective interventions into "real-world" practice. A recently published framework was designed to standardize reporting on implementation strategies in the implementation science literature. We applied this framework to describe the strategies used to implement a single intervention in its original commercial care setting, and when implemented in community health centers from September 2010 through May 2015. Per this framework, the target (clinic staff) and outcome (prescribing rates) remained the same across settings; the actor, action, temporality, and dose were adapted to fit local context. The framework proved helpful in articulating which of the implementation strategies were kept constant and which were tailored to fit diverse settings, and simplified our reporting of their effects. Researchers should consider consistently reporting this information, which could be crucial to the success or failure of implementing proven interventions effectively across diverse care settings. clinicaltrials.gov Identifier: NCT02299791. Copyright © 2016 The Authors. Published by Elsevier Inc. All rights reserved.

  15. Soil magnetic susceptibility mapping as a pollution and provenance tool: an example from southern New Zealand

    Science.gov (United States)

    Martin, A. P.; Ohneiser, C.; Turnbull, R. E.; Strong, D. T.; Demler, S.

    2018-02-01

    The presence or absence, degree and variation of heavy metal contamination in New Zealand soils is a matter of ongoing debate as it affects soil quality, agriculture and human health. In many instances, however, the soil heavy metal concentration data do not exist to answer these questions and the debate is ongoing. To address this, magnetic susceptibility (a common proxy for heavy metal contamination) values were measured in topsoil (0-30 cm) and subsoil (50-70 cm) at grid sites spaced at 8 km intervals across ca. 20 000 km2 of southern New Zealand. Samples were measured for both mass- and volume-specific magnetic susceptibility, with results being strongly, positively correlated. Three different methods of determining anomalies were applied to the data including the topsoil-subsoil difference method, Tukey boxplot method and geoaccumulation index method, with each method filtering out progressively more anomalies. Additional soil magnetic (hysteresis, isothermal remanence and thermomagnetic) measurements were made on a select subset of samples from anomalous sites. Magnetite is the dominant remanence carrying mineral, and magnetic susceptibility is governed by that minerals concentration in soils, rather than mineral type. All except two anomalous sites have a dominant geogenic source (cf. anthropogenic). By proxy, heavy metal contamination in southern New Zealand soils is minimal, making them relatively pristine. The provenance of the magnetic minerals in the anomalous sites can be traced back to likely sources in outcrops of igneous rocks within the same catchment, terrane or rock type: a distance of Soil provenance is a key step when mapping element or isotopic distribution, vectoring to mineralization or studying soil for agricultural suitability, water quality or environmental regulation. Measuring soil magnetic susceptibility is a useful, quick and inexpensive tool that usefully supplements soil geochemical data.

  16. Snow precipitation at four ice core sites in East Antarctica: provenance, seasonality and blocking factors

    Energy Technology Data Exchange (ETDEWEB)

    Scarchilli, Claudio [ENEA, Rome (Italy); Universita degli studi di Trieste, Trieste (Italy); Frezzotti, Massimo; Ruti, Paolo Michele [ENEA, Rome (Italy)

    2011-11-15

    Snow precipitation is the primary mass input to the Antarctic ice sheet and is one of the most direct climatic indicators, with important implications for paleoclimatic reconstruction from ice cores. Provenance of precipitation and the dynamic conditions that force these precipitation events at four deep ice core sites (Dome C, Law Dome, Talos Dome, and Taylor Dome) in East Antarctica were analysed with air mass back trajectories calculated using the Lagrangian model and the mean composite data for precipitation, geopotential height and wind speed field data from the European Centre for Medium Range Weather Forecast from 1980 to 2001. On an annual basis, back trajectories showed that the Atlantic-Indian and Ross-Pacific Oceans were the main provenances of precipitation in Wilkes Land (80%) and Victoria Land (40%), respectively, whereas the greatest influence of the ice sheet was on the interior near the Vostok site (80%) and in the Southwest Ross Sea (50%), an effect that decreased towards the coast and along the Antarctic slope. Victoria Land received snowfall atypically with respect to other Antarctica areas in terms of pathway (eastern instead of western), seasonality (summer instead of winter) and velocity (old air age). Geopotential height patterns at 500 hPa at low (>10 days) and high (2-6 days) frequencies during snowfall cycles at two core sites showed large positive anomalies at low frequencies developing in the Tasman Sea-Eastern Indian Ocean at higher latitudes (60-70 S) than normal. This could be considered part of an atmospheric blocking event, with transient eddies acting to decelerate westerlies in a split region area and accelerate the flow on the flanks of the low-frequency positive anomalies. (orig.)

  17. Multiparametric evaluation by simultaneous PET-MRI examination in patients with histologically proven laryngeal cancer

    International Nuclear Information System (INIS)

    Cavaliere, Carlo; Romeo, Valeria; Aiello, Marco; Mesolella, Massimo; Iorio, Brigida; Barbuto, Luigi; Cantone, Elena; Nicolai, Emanuele; Covello, Mario

    2017-01-01

    Highlights: • PET/MRI is feasible and useful for primary staging of laryngeal cancer. • PET/MRI simultaneously provides morphological, metabolic and functional parameters of tumoral laryngeal lesions. • PET/MRI allows an appropriate tumoral staging in terms of lesion extension with significant impact on therapeutic strategies. - Abstract: Objectives: To evaluate the relationship between metabolic 18Fluoro-Deoxyglucose-Positron Emission Tomography (18FDG/PET) and morpho-functional parameters derived by Magnetic Resonance Imaging (MRI) in patients with histologically proven laryngeal cancer. To assess the clinical impact of PET/MRI examination on patient’s staging and treatment planning. Methods: 16 patients with histologically proven laryngeal cancer were enrolled and underwent whole body PET/CT followed by a dedicated PET/MRI of the head/neck region. Data were separately evaluated by two blinded groups: metabolic (SUV and MTV), diffusion (ADC) and perfusion (K trans , V e , k ep and iAUC) maps were obtained by positioning regions of interest (ROIs). Tumoral local extension assessed on PET/MRI was compared to endoscopic findings. Results: A good inter-observer agreement was found in anatomical location and local extension of PET/MRI lesions (Cohen’s kappa 0.9). PET/CT SUV measures highly correlate with ones derived by PET/MRI (e.g., p = 0.96 for measures on VOI). Significant correlations among metabolic, diffusion and perfusion parameters have been detected. PET/MRI had a relevant clinical impact, confirming endoscopic findings (6 cases), helping treatment planning (9 cases), and modifying endoscopic primary staging (1 case). Conclusions: PET/MRI is useful for primary staging of laryngeal cancer, allowing simultaneous collection of metabolic and functional data and conditioning the therapeutic strategies.

  18. Microbial profile of the vitreous aspirates in culture proven exogenous endophthalmitis: A 10-year retrospective study

    Directory of Open Access Journals (Sweden)

    H Bhattacharjee

    2016-01-01

    Full Text Available Purpose: To describe the microbiological profile and clinical outcome in the eyes with culture-proven exogenous endophthalmitis. Methods: A retrospective analysis of 495 eyes diagnosed as exogenous endophthalmitis was performed over a period of 10 years. In all, aseptically collected aqueous and vitreous aspirates were cultured for bacteria and fungus using standard microbiological techniques. Gram-stain and KOH preparation of the specimens were also performed. The antibiotic susceptibility testing for bacterial isolates was performed by Kirby-Bauer disk diffusion method. The treatment was modified according to the antibiotic sensitivity profile. The final clinical ocular condition was divided into improved, stable or deteriorated. Results: Of 148 culture-proven endophthalmitis eyes, 137 (92.57% were referred from elsewhere, and 11 (7.43% belonged to our institute. Aetiologically, 76 (51.35% eyes were post-cataract surgery, 61 (41.22% were post-traumatic, 5 (3.38% eyes post-intravitreal anti-vascular endothelial growth factor injection, 5 associated with corneal diseases and 1 bleb-related endophthalmitis. In 31 (20.95% eyes, primary intravitreal antibiotics were given outside. The cultures revealed monomicrobial growth in 92.57% (n = 137 and polymicrobial growth in 7.43% (n = 11. Among the bacteria (n = 121, 81.76%, Pseudomonas species dominated overall (n = 32, 27.11% and post-operative (n = 26, 38.23% endophthalmitis group. Staphylococcus epidermidis (n = 14, 28% was prominent in post-traumatic endophthalmitis group. Ninety-two percent (n = 108 isolates of bacteria were sensitive to vancomycin. In 78 (52.7% eyes, the clinical ocular condition improved or remained stable while deteriorated in 51 (34.46%. Conclusion: A bacterial predominance was observed among causative organisms of exogenous endophthalmitis with Pseudomonas species being the most common. The appropriate surgical intervention improved or stabilised the visual acuity in nearly

  19. Evaluating the Consistency of the FNA Test in Pathologically Proven Nodules of Thyroidectomy

    Directory of Open Access Journals (Sweden)

    Alireza Khazaei

    2018-02-01

    Full Text Available Fine Needle Aspiration (FNA is a selective diagnostic technique for the evaluation of non-toxic thyroid nodules. Thyroid FNA results are either undiagnosed or suspicious and indeterminate in 20-30% of cases. Therefore, this study seeks to determine the consistency of the FNA test in pathologically proven nodules of thyroidectomy. This is a descriptive cross-sectional study carried out on a total of 73 candidates for thyroidectomy who had been admitted to Imam Ali Hospital. A census sampling method has been used in this study. The FNA samples and pathology samples were evaluated and the consistency of the FNA test in pathologically proven nodules were compared. The SPSS software was used for data analysis. The mean age of the patients was 40.1 ± 12.9 years. 23.3% of the participants were male and 76.7% of them were female. The malignancy rate in the pathology was 65.8% (48 cases and 53.4% (39 cases in the FNA. Of the 48 positive cases, the FNA pathology diagnosed 35 cases (72.9% as positive and 13 cases (27.1% as negative. Of the 25 negative cases, the FNA pathology diagnosed 21 cases (84% as negative and 4 cases (16% as positive. Sensitivity, specificity, positive and negative predictive values of FNA in malignancy diagnosis were 72.92, 84, 89.74, and 61.76%, respectively. The results show that FNA does not have a high sensitivity in the diagnosis of malignancy, but has good specificity and the use of other diagnostic methods before the operation of thyroid nodules seems necessary.

  20. Provenance validation of polished rice samples using nuclear and isotopic analytical techniques

    International Nuclear Information System (INIS)

    Pabroa, P.C.B.; Sucgang, R.J.; Mendoza, N.D.S.; Ebihara, M.; Peña, M.

    2015-01-01

    Rice (Oryza sativa) has been considered the best staple food among all cereals and is the staple food for over 3 billion people, constituting over half of the world’s population. Elemental and isotopic analysis revealed variance between Philippine and Japanese rice. Rice samples collected in Japan and in the Philippines (market survey samples from Metro Manila, and farm harvests from Aklan province and Central Luzon) were washed, dried and ground to fine powder. Elemental analyses of the samples were carried out using instrumental neutron activation analysis (INAA) while isotopic signatures of the samples were determined using the isotope ratio mass spectrometry (IRMS). Results show that compared with the unpolished rice standard NIES CRM10b, the polished Japanese and Philippine rice sampled show reduced concentrations of elements by as much as 1/10. 1/4 , 1/5 and 1/3 for Mg, Mn, K and Na, respectively. Levels of Ca and Zn are not greatly affected. Arsenic, probably introduced from fertilizers used in rice fields is found in all the Japanese rice tested at an average concentration of 0.103 μg/g and three out of four of the Philippine rice at an average concentration of 0.70μg/g. Higher levels of Br seen in two of the Philippine rice at 14 and 34μg/g indicated probable contamination source from the pesticide methyl bromide during quarantine. Good correlation of isotopic signatures with geographical location of polished, but not for unpolished, rice samples from Central Luzon and Aklan indicated that provenance studies are best done on polished rice samples. Isotopic with of ω’”13C show signature that of a C3 plant with possible narrow distinguishable signature with Japanese rice falling within -27.5 to -28.5 while Philippine rice within -29 to -30. Rice provenance can be ascertained using elemental analysis and isotopic abundance determination as shown by the study.(author)