Sample records for vauhallan essonne analyse

  1. Analysis of the leukemia cases occurrence at Vauhallan (Essonne); Analyse de la survenue de deux cas de leucemie a Vauhallan (Essonne)

    Energy Technology Data Exchange (ETDEWEB)



    The researches and environmental measurements realised at Vauhallan did not allow to assume a link between an environmental exposure of the population and the occurrence of the two cases of leukemia. In the lack of new hypothesis, the technical group has decided to not pursue the local investigations but to keep, at systematic title, the sanitary surveillance of the commune by a regular questioning of the national register of children leukemia and lymphomas. it is to notice that only studies at a broader scale , as the three national studies of I.n.s.e.r.m., actually running, are in a position to bring new knowledge on the risk factors of children leukemia as well their spatial distribution. (N.C.)

  2. La Clarté-Dieu (Orsay, Essonne : simplicité, sobriété, beauté

    Directory of Open Access Journals (Sweden)

    Annabel Rémy


    Full Text Available Édifié entre 1952 et 1956 par trois jeunes architectes, les frères Arsène-Henry et E. Besnard-Bernadac, le couvent de La Clarté-Dieu à Orsay (Essonne est vraisemblablement le premier édifice en France construit en béton de ciment blanc dans une utilisation structurelle et non décorative. Un programme extraordinairement précis a été rédigé par deux frères franciscains. Il adopte les idées régulièrement développées par le père Régamey dans la revue l’Art Sacré, incitant à un renouveau puisant dans l’art et les techniques contemporaines. La conception des plans prit dix-huit mois, le chantier dura deux ans. Le couvent est implanté dans un parc d’un peu moins de 5 hectares. Ce parc boisé, agrémenté d’une pièce d’eau, présente une déclivité importante. Les murs verticaux extérieurs sont constitués par des voiles de béton armé, raidis et laissés bruts de décoffrage, créant des jeux de lumière et d’ombre sur les façades. La sobriété de la décoration du bâtiment est en accord avec celle de l’architecture. Inauguré le 4 juillet 1956, le couvent fait l’objet de très nombreuses publications dans la presse locale et nationale, ainsi que dans les revues spécialisées - françaises et étrangères -, tant en architecture qu’en art sacréBuilt from 1952 to 1956 by three young architects, the Arsène-Henry brothers and E. Besnard-Bernadac, the La Clarté-Dieu convent in Orsay (Essonne, France is probably the very first building made of a white cement concrete in a structural use and not a decorative one. An extraordinarily accurate program was written up by two franciscan brethen. It adopts the ideas regularly developed by the father Régamey in the journal l’Art Sacré, prompting to a revival borrowing from the contemporary art and technics. The design of the plans was made in 18 months, the construction lasted two years. The convent is located in a park of less than 5 hectares. This

  3. Analyse

    DEFF Research Database (Denmark)

    Greve, Bent


    Analyse i Politiken om frynsegoder med udgangspunkt i bogen Occupational Welfare - Winners and Losers publiceret på Edward Elgar......Analyse i Politiken om frynsegoder med udgangspunkt i bogen Occupational Welfare - Winners and Losers publiceret på Edward Elgar...

  4. Sproglig Metode og Analyse

    DEFF Research Database (Denmark)

    le Fevre Jakobsen, Bjarne

    Publikationen indeholder øvematerialer, tekster, powerpointpræsentationer og handouts til undervisningsfaget Sproglig Metode og Analyse på BA og tilvalg i Dansk/Nordisk 2010-2011......Publikationen indeholder øvematerialer, tekster, powerpointpræsentationer og handouts til undervisningsfaget Sproglig Metode og Analyse på BA og tilvalg i Dansk/Nordisk 2010-2011...

  5. Laser Beam Focus Analyser

    DEFF Research Database (Denmark)

    Nielsen, Peter Carøe; Hansen, Hans Nørgaard; Olsen, Flemming Ove


    The quantitative and qualitative description of laser beam characteristics is important for process implementation and optimisation. In particular, a need for quantitative characterisation of beam diameter was identified when using fibre lasers for micro manufacturing. Here the beam diameter limits...... the obtainable features in direct laser machining as well as heat affected zones in welding processes. This paper describes the development of a measuring unit capable of analysing beam shape and diameter of lasers to be used in manufacturing processes. The analyser is based on the principle of a rotating...... mechanical wire being swept through the laser beam at varying Z-heights. The reflected signal is analysed and the resulting beam profile determined. The development comprised the design of a flexible fixture capable of providing both rotation and Z-axis movement, control software including data capture...

  6. Meta-analyses

    NARCIS (Netherlands)

    Hendriks, Maria A.; Luyten, Johannes W.; Scheerens, Jaap; Sleegers, P.J.C.; Scheerens, J


    In this chapter results of a research synthesis and quantitative meta-analyses of three facets of time effects in education are presented, namely time at school during regular lesson hours, homework, and extended learning time. The number of studies for these three facets of time that could be used

  7. Contesting Citizenship: Comparative Analyses

    DEFF Research Database (Denmark)

    Siim, Birte; Squires, Judith


    importance of particularized experiences and multiple ineequality agendas). These developments shape the way citizenship is both practiced and analysed. Mapping neat citizenship modles onto distinct nation-states and evaluating these in relation to formal equality is no longer an adequate approach...

  8. Analysing Access Control Specifications

    DEFF Research Database (Denmark)

    Probst, Christian W.; Hansen, René Rydhof


    . Recent events have revealed intimate knowledge of surveillance and control systems on the side of the attacker, making it often impossible to deduce the identity of an inside attacker from logged data. In this work we present an approach that analyses the access control configuration to identify the set...

  9. Chromosome analyses in dogs. (United States)

    Reimann-Berg, N; Bullerdiek, J; Murua Escobar, H; Nolte, I


    Cytogenetics is the study of normal and abnormal chromosomes. Every species is characterized by a given number of chromosomes that can be recognized by their specific shape. The chromosomes are arranged according to standard classification schemes for the respective species. While pre- and postnatal chromosome analyses investigate the constitutional karyotype, tumor cytogenetics is focused on the detection of clonal acquired, tumor-associated chromosome aberrations. Cytogenetic investigations in dogs are of great value especially for breeders dealing with fertility problems within their pedigrees, for veterinarians and last but not least for the dog owners. Dogs and humans share a variety of genetic diseases, including cancer. Thus, the dog has become an increasingly important model for genetic diseases. However, cytogenetic analyses of canine cells are complicated by the complex karyotype of the dog. Only just 15 years ago, a standard classification scheme for the complete canine karyotype was established. For chromosome analyses of canine cells the same steps of chromosome preparation are used as in human cytogenetics. There are few reports about cytogenetic changes in non-neoplastic cells, involving predominantly the sex chromosomes. Cytogenetic analyses of different entities of canine tumors revealed that, comparable to human tumors, tumors of the dog are often characterized by clonal chromosome aberrations, which might be used as diagnostic and prognostic markers. The integration of modern techniques (molecular genetic approaches, adaptive computer programs) will facilitate and complete conventional cytogenetic studies. However, conventional cytogenetics is still non-replaceable.

  10. Report sensory analyses veal

    NARCIS (Netherlands)

    Veldman, M.; Schelvis-Smit, A.A.M.


    On behalf of a client of Animal Sciences Group, different varieties of veal were analyzed by both instrumental and sensory analyses. The sensory evaluation was performed with a sensory analytical panel in the period of 13th of May and 31st of May, 2005. The three varieties of veal were: young bull,

  11. Filmstil - teori og analyse

    DEFF Research Database (Denmark)

    Hansen, Lennard Højbjerg

    Filmstil påvirker på afgørende vis vores oplevelse af film. Men filmstil, måden, de levende billeder organiserer fortællingen på fylder noget mindre end filmens handling, når vi taler om film. Filmstil - teori og analyse er en rigt eksemplificeret præsentation, kritik og videreudvikling af...

  12. Dropped object protection analyses


    Nilsen, Ingve


    Master's thesis in Offshore structural engineering Impact from dropped object is a typical accident action (NOKSOK N-004, 2013). Hence, the DOP structure is to be analyzed in an accidental limit state (ALS) design practice, which means that a non-linear finite element analysis can be applied. The DOP structure will be based on a typical DOP structure. Several FEM analyses are performed for the DOP structure. Different shapes size and weights and various impact positions are used for si...

  13. Biomass feedstock analyses

    Energy Technology Data Exchange (ETDEWEB)

    Wilen, C.; Moilanen, A.; Kurkela, E. [VTT Energy, Espoo (Finland). Energy Production Technologies


    The overall objectives of the project `Feasibility of electricity production from biomass by pressurized gasification systems` within the EC Research Programme JOULE II were to evaluate the potential of advanced power production systems based on biomass gasification and to study the technical and economic feasibility of these new processes with different type of biomass feed stocks. This report was prepared as part of this R and D project. The objectives of this task were to perform fuel analyses of potential woody and herbaceous biomasses with specific regard to the gasification properties of the selected feed stocks. The analyses of 15 Scandinavian and European biomass feed stock included density, proximate and ultimate analyses, trace compounds, ash composition and fusion behaviour in oxidizing and reducing atmospheres. The wood-derived fuels, such as whole-tree chips, forest residues, bark and to some extent willow, can be expected to have good gasification properties. Difficulties caused by ash fusion and sintering in straw combustion and gasification are generally known. The ash and alkali metal contents of the European biomasses harvested in Italy resembled those of the Nordic straws, and it is expected that they behave to a great extent as straw in gasification. Any direct relation between the ash fusion behavior (determined according to the standard method) and, for instance, the alkali metal content was not found in the laboratory determinations. A more profound characterisation of the fuels would require gasification experiments in a thermobalance and a PDU (Process development Unit) rig. (orig.) (10 refs.)

  14. EEG analyses with SOBI.

    Energy Technology Data Exchange (ETDEWEB)

    Glickman, Matthew R.; Tang, Akaysha (University of New Mexico, Albuquerque, NM)


    The motivating vision behind Sandia's MENTOR/PAL LDRD project has been that of systems which use real-time psychophysiological data to support and enhance human performance, both individually and of groups. Relevant and significant psychophysiological data being a necessary prerequisite to such systems, this LDRD has focused on identifying and refining such signals. The project has focused in particular on EEG (electroencephalogram) data as a promising candidate signal because it (potentially) provides a broad window on brain activity with relatively low cost and logistical constraints. We report here on two analyses performed on EEG data collected in this project using the SOBI (Second Order Blind Identification) algorithm to identify two independent sources of brain activity: one in the frontal lobe and one in the occipital. The first study looks at directional influences between the two components, while the second study looks at inferring gender based upon the frontal component.

  15. Analyse af elbilers forbrug

    DEFF Research Database (Denmark)

    Andersen, Ove; Krogh, Benjamin Bjerre; Torp, Kristian


    Denne rapport undersøger GPS og CAN bus datagrundlaget opsamlet ved kørsel med elbiler og analysere på elbilers forbrug. Analyserne er baseret på godt 133 millioner GPS og CAN bus målinger opsamlet fra 164 elbiler (Citroen C-Zero, Mitsubishi iMiev og Peugeot Ion) i kalenderåret 2012....... For datagrundlaget kan det konstateres, at der er behov for væsentlige, men simple opstramninger for fremadrettet at gøre det nemmere at anvende GPS/CAN bus data fra elbiler i andre analyser. Brugen af elbiler er sammenlignet med brændstofbiler og konklusionen er, at elbiler generelt kører 10-15 km/t langsommere på...

  16. Conjoint-Analyse und Marktsegmentierung


    Steiner, Winfried J.; Baumgartner, Bernhard


    Die Marktsegmentierung zählt neben der Neuproduktplanung und Preisgestaltung zu den wesentlichen Einsatzgebieten der Conjoint-Analyse. Neben traditionell eingesetzten zweistufigen Vorgehensweisen, bei denen Conjoint-Analyse und Segmentierung in zwei getrennten Schritten erfolgen, stehen heute mit Methoden wie der Clusterwise Regression oder Mixture-Modellen neuere Entwicklungen, die eine simultane Segmentierung und Präferenzschätzung ermöglichen, zur Verfügung. Der Beitrag gibt einen Überblic...

  17. Analyse des Organisations en Afrique

    African Journals Online (AJOL)

    de celle-ci pourtenter d'identifier et d'élucider les dynamiques sociales qui s'y déroulent, puis de les examiner en rapport avec les stratégies d'acteurs et le contexte général (l'environnement) dans lequel évolue cette organisation, ... Et son Analyse. L'analyse des organisations est une démarche ancienne dont les ...

  18. Mitogenomic analyses from ancient DNA

    DEFF Research Database (Denmark)

    Paijmans, Johanna L. A.; Gilbert, Tom; Hofreiter, Michael


    analyses (whether using modern or ancient DNA) were largely restricted to the analysis of short fragments of the mitochondrial genome. However, due to many technological advances during the past decade, a growing number of studies have explored the power of complete mitochondrial genome sequences......The analysis of ancient DNA is playing an increasingly important role in conservation genetic, phylogenetic and population genetic analyses, as it allows incorporating extinct species into DNA sequence trees and adds time depth to population genetics studies. For many years, these types of DNA...... (mitogenomes). Such studies were initially limited to analyses of extant organisms, but developments in both DNA sequencing technologies and general methodological aspects related to working with degraded DNA have resulted in complete mitogenomes becoming increasingly popular for ancient DNA studies as well...

  19. Beskrivende analyse af mekaniske systemer

    DEFF Research Database (Denmark)

    Andreasen, Mogens Myrup; Hansen, Claus Thorp

    Descriptive analysis is the activity, where a given product is analysed for obtaining insight into different aspects, leading to an explicit description of each of these aspects. This textbook is worked out for course 72101 Produktanalyse (Analysis of products) given at DTU.......Descriptive analysis is the activity, where a given product is analysed for obtaining insight into different aspects, leading to an explicit description of each of these aspects. This textbook is worked out for course 72101 Produktanalyse (Analysis of products) given at DTU....

  20. An extensible analysable system model

    DEFF Research Database (Denmark)

    Probst, Christian W.; Hansen, Rene Rydhof


    , this does not hold for real physical systems. Approaches such as threat modelling try to target the formalisation of the real-world domain, but still are far from the rigid techniques available in security research. Many currently available approaches to assurance of critical infrastructure security......Analysing real-world systems for vulnerabilities with respect to security and safety threats is a difficult undertaking, not least due to a lack of availability of formalisations for those systems. While both formalisations and analyses can be found for artificial systems such as software...

  1. Mitogenomic analyses from ancient DNA. (United States)

    Paijmans, Johanna L A; Gilbert, M Thomas P; Hofreiter, Michael


    The analysis of ancient DNA is playing an increasingly important role in conservation genetic, phylogenetic and population genetic analyses, as it allows incorporating extinct species into DNA sequence trees and adds time depth to population genetics studies. For many years, these types of DNA analyses (whether using modern or ancient DNA) were largely restricted to the analysis of short fragments of the mitochondrial genome. However, due to many technological advances during the past decade, a growing number of studies have explored the power of complete mitochondrial genome sequences (mitogenomes). Such studies were initially limited to analyses of extant organisms, but developments in both DNA sequencing technologies and general methodological aspects related to working with degraded DNA have resulted in complete mitogenomes becoming increasingly popular for ancient DNA studies as well. To date, at least 124 partially or fully assembled mitogenomes from more than 20 species have been obtained, and, given the rapid progress in sequencing technology, this number is likely to dramatically increase in the future. The increased information content offered by analysing full mitogenomes has yielded major progress with regard to both the phylogenetic positions of extinct species, as well as resolving population genetics questions in both extinct and extant species. Copyright © 2012 Elsevier Inc. All rights reserved.

  2. Descriptive Analyses of Mechanical Systems

    DEFF Research Database (Denmark)

    Andreasen, Mogens Myrup; Hansen, Claus Thorp


    Forord Produktanalyse og teknologianalyse kan gennmføres med et bredt socio-teknisk sigte med henblik på at forstå kulturelle, sociologiske, designmæssige, forretningsmæssige og mange andre forhold. Et delområde heri er systemisk analyse og beskrivelse af produkter og systemer. Nærværende kompend...

  3. Mitogenomic analyses of caniform relationships. (United States)

    Arnason, Ulfur; Gullberg, Anette; Janke, Axel; Kullberg, Morgan


    Extant members of the order Carnivora split into two basal groups, Caniformia (dog-like carnivorans) and Feliformia (cat-like carnivorans). In this study we address phylogenetic relationships within Caniformia applying various methodological approaches to analyses of complete mitochondrial genomes. Pinnipeds are currently well represented with respect to mitogenomic data and here we add seven mt genomes to the non-pinniped caniform collection. The analyses identified a basal caniform divergence between Cynoidea and Arctoidea. Arctoidea split into three primary groups, Ursidae (including the giant panda), Pinnipedia, and a branch, Musteloidea, which encompassed Ailuridae (red panda), Mephitidae (skunks), Procyonidae (raccoons) and Mustelidae (mustelids). The analyses favored a basal arctoid split between Ursidae and a branch containing Pinnipedia and Musteloidea. Within the Musteloidea there was a preference for a basal divergence between Ailuridae and remaining families. Among the latter, the analyses identified a sister group relationship between Mephitidae and a branch that contained Procyonidae and Mustelidae. The mitogenomic distance between the wolf and the dog was shown to be at the same level as that of basal human divergences. The wolf and the dog are commonly considered as separate species in the popular literature. The mitogenomic result is inconsistent with that understanding at the same time as it provides insight into the time of the domestication of the dog relative to basal human mitogenomic divergences.

  4. Evaluation "Risk analyses of agroparks"

    NARCIS (Netherlands)

    Ge, L.


    Dit TransForum project richt zich op analyse van de onzekerheden en mogelijkheden van agroparken. Dit heeft geleid tot een risicomodel dat de kwalitatieve en/of kwantitatieve onzekerheden van een agropark project in kaart brengt. Daarmee kunnen maatregelen en managementstrategiën worden

  5. Severe accident recriticality analyses (SARA)

    DEFF Research Database (Denmark)

    Frid, W.; Højerup, C.F.; Lindholm, I.


    Recriticality in a BWR during reflooding of an overheated partly degraded core, i.e. with relocated control rods, has been studied for a total loss of electric power accident scenario. In order to assess the impact of recriticality on reactor safety, including accident management strategies...... three computer codes and to further develop and adapt them for the task. The codes were SIMULATE-3K, APROS and RECRIT. Recriticality analyses were carried out for a number of selected reflooding transients for the Oskarshamn 3 plant in Sweden with SIMULATE-3K and for the Olkiluoto I plant in Finland...... with all three codes. The core initial and boundary conditions prior to recriticality have been studied with the severe accident codes SCDAP/RELAP5, MELCOR and MAAP4. The results of the analyses show that all three codes predict recriticality-both super-prompt power bursts and quasi steady-state power...

  6. The CAMAC logic state analyser

    CERN Document Server

    Centro, Sandro


    Summary form only given, as follows. Large electronic experiments using distributed processors for parallel readout and data reduction need to analyse the data acquisition components status and monitor dead time constants of each active readout module and processor. For the UA1 experiment, a microprocessor-based CAMAC logic status analyser (CLSA) has been developed in order to implement these functions autonomously. CLSA is a single unit CAMAC module, able to record, up to 256 times, the logic status of 32 TTL inputs gated by a common clock, internal or external, with a maximum frequency of 2 MHz. The data stored in the internal CLSA memory can be read directly via CAMAC function or preprocessed by CLSA 6800 microprocessor. The 6800 resident firmware (4Kbyte) expands the module features to include an interactive monitor, data recording control, data reduction and histogram accumulation with statistics parameter evaluation. The microprocessor memory and the resident firmware can be externally extended using st...

  7. Uncertainty in Operational Atmospheric Analyses and Re-Analyses (United States)

    Langland, R.; Maue, R. N.


    This talk will describe uncertainty in atmospheric analyses of wind and temperature produced by operational forecast models and in re-analysis products. Because the "true" atmospheric state cannot be precisely quantified, there is necessarily error in every atmospheric analysis, and this error can be estimated by computing differences ( variance and bias) between analysis products produced at various centers (e.g., ECMWF, NCEP, U.S Navy, etc.) that use independent data assimilation procedures, somewhat different sets of atmospheric observations and forecast models with different resolutions, dynamical equations, and physical parameterizations. These estimates of analysis uncertainty provide a useful proxy to actual analysis error. For this study, we use a unique multi-year and multi-model data archive developed at NRL-Monterey. It will be shown that current uncertainty in atmospheric analyses is closely correlated with the geographic distribution of assimilated in-situ atmospheric observations, especially those provided by high-accuracy radiosonde and commercial aircraft observations. The lowest atmospheric analysis uncertainty is found over North America, Europe and Eastern Asia, which have the largest numbers of radiosonde and commercial aircraft observations. Analysis uncertainty is substantially larger (by factors of two to three times) in most of the Southern hemisphere, the North Pacific ocean, and under-developed nations of Africa and South America where there are few radiosonde or commercial aircraft data. It appears that in regions where atmospheric analyses depend primarily on satellite radiance observations, analysis uncertainty of both temperature and wind remains relatively high compared to values found over North America and Europe.

  8. Mitogenomic analyses of eutherian relationships. (United States)

    Arnason, U; Janke, A


    Reasonably correct phylogenies are fundamental to the testing of evolutionary hypotheses. Here, we present phylogenetic findings based on analyses of 67 complete mammalian mitochondrial (mt) genomes. The analyses, irrespective of whether they were performed at the amino acid (aa) level or on nucleotides (nt) of first and second codon positions, placed Erinaceomorpha (hedgehogs and their kin) as the sister group of remaining eutherians. Thus, the analyses separated Erinaceomorpha from other traditional lipotyphlans (e.g., tenrecs, moles, and shrews), making traditional Lipotyphla polyphyletic. Both the aa and nt data sets identified the two order-rich eutherian clades, the Cetferungulata (comprising Pholidota, Carnivora, Perissodactyla, Artiodactyla, and Cetacea) and the African clade (Tenrecomorpha, Macroscelidea, Tubulidentata, Hyracoidea, Proboscidea, and Sirenia). The study corroborated recent findings that have identified a sister-group relationship between Anthropoidea and Dermoptera (flying lemurs), thereby making our own order, Primates, a paraphyletic assembly. Molecular estimates using paleontologically well-established calibration points, placed the origin of most eutherian orders in Cretaceous times, 70-100 million years before present (MYBP). The same estimates place all primate divergences much earlier than traditionally believed. For example, the divergence between Homo and Pan is estimated to have taken place approximately 10 MYBP, a dating consistent with recent findings in primate paleontology. Copyright 2002 S. Karger AG, Basel

  9. Providing traceability for neuroimaging analyses. (United States)

    McClatchey, Richard; Branson, Andrew; Anjum, Ashiq; Bloodsworth, Peter; Habib, Irfan; Munir, Kamran; Shamdasani, Jetendr; Soomro, Kamran


    With the increasingly digital nature of biomedical data and as the complexity of analyses in medical research increases, the need for accurate information capture, traceability and accessibility has become crucial to medical researchers in the pursuance of their research goals. Grid- or Cloud-based technologies, often based on so-called Service Oriented Architectures (SOA), are increasingly being seen as viable solutions for managing distributed data and algorithms in the bio-medical domain. For neuroscientific analyses, especially those centred on complex image analysis, traceability of processes and datasets is essential but up to now this has not been captured in a manner that facilitates collaborative study. Few examples exist, of deployed medical systems based on Grids that provide the traceability of research data needed to facilitate complex analyses and none have been evaluated in practice. Over the past decade, we have been working with mammographers, paediatricians and neuroscientists in three generations of projects to provide the data management and provenance services now required for 21st century medical research. This paper outlines the finding of a requirements study and a resulting system architecture for the production of services to support neuroscientific studies of biomarkers for Alzheimer's disease. The paper proposes a software infrastructure and services that provide the foundation for such support. It introduces the use of the CRISTAL software to provide provenance management as one of a number of services delivered on a SOA, deployed to manage neuroimaging projects that have been studying biomarkers for Alzheimer's disease. In the neuGRID and N4U projects a Provenance Service has been delivered that captures and reconstructs the workflow information needed to facilitate researchers in conducting neuroimaging analyses. The software enables neuroscientists to track the evolution of workflows and datasets. It also tracks the outcomes of

  10. Methodological challenges in carbohydrate analyses

    Directory of Open Access Journals (Sweden)

    Mary Beth Hall


    Full Text Available Carbohydrates can provide up to 80% of the dry matter in animal diets, yet their specific evaluation for research and diet formulation is only now becoming a focus in the animal sciences. Partitioning of dietary carbohydrates for nutritional purposes should reflect differences in digestion and fermentation characteristics and effects on animal performance. Key challenges to designating nutritionally important carbohydrate fractions include classifying the carbohydrates in terms of nutritional characteristics, and selecting analytical methods that describe the desired fraction. The relative lack of information on digestion characteristics of various carbohydrates and their interactions with other fractions in diets means that fractions will not soon be perfectly established. Developing a system of carbohydrate analysis that could be used across animal species could enhance the utility of analyses and amount of data we can obtain on dietary effects of carbohydrates. Based on quantities present in diets and apparent effects on animal performance, some nutritionally important classes of carbohydrates that may be valuable to measure include sugars, starch, fructans, insoluble fiber, and soluble fiber. Essential to selection of methods for these fractions is agreement on precisely what carbohydrates should be included in each. Each of these fractions has analyses that could potentially be used to measure them, but most of the available methods have weaknesses that must be evaluated to see if they are fatal and the assay is unusable, or if the assay still may be made workable. Factors we must consider as we seek to analyze carbohydrates to describe diets: Does the assay accurately measure the desired fraction? Is the assay for research, regulatory, or field use (affects considerations of acceptable costs and throughput? What are acceptable accuracy and variability of measures? Is the assay robust (enhances accuracy of values? For some carbohydrates, we

  11. Statistical Analyses of Digital Collections

    DEFF Research Database (Denmark)

    Frandsen, Tove Faber; Nicolaisen, Jeppe


    Using statistical methods to analyse digital material for patterns makes it possible to detect patterns in big data that we would otherwise not be able to detect. This paper seeks to exemplify this fact by statistically analysing a large corpus of references in systematic reviews. The aim...... of the analysis is to study the phenomenon of non-citation: Situations where just one (or some) document(s) are cited from a pool of otherwise equally citable documents. The study is based on more than 120,000 cited studies, and a total number of non-cited studies of more than 1.6 million. The number of cited...... 10 years. After 10 years the cited and non-cited studies tend to be more similar in terms of age. Separating the data set into different sub-disciplines reveals that the sub-disciplines vary in terms of age of cited vs. non-cited references. Some fields may be expanding and the number of published...

  12. Analysing ESP Texts, but How?

    Directory of Open Access Journals (Sweden)

    Borza Natalia


    Full Text Available English as a second language (ESL teachers instructing general English and English for specific purposes (ESP in bilingual secondary schools face various challenges when it comes to choosing the main linguistic foci of language preparatory courses enabling non-native students to study academic subjects in English. ESL teachers intending to analyse English language subject textbooks written for secondary school students with the aim of gaining information about what bilingual secondary school students need to know in terms of language to process academic textbooks cannot avoiding deal with a dilemma. It needs to be decided which way it is most appropriate to analyse the texts in question. Handbooks of English applied linguistics are not immensely helpful with regard to this problem as they tend not to give recommendation as to which major text analytical approaches are advisable to follow in a pre-college setting. The present theoretical research aims to address this lacuna. Respectively, the purpose of this pedagogically motivated theoretical paper is to investigate two major approaches of ESP text analysis, the register and the genre analysis, in order to find the more suitable one for exploring the language use of secondary school subject texts from the point of view of an English as a second language teacher. Comparing and contrasting the merits and limitations of the two contrastive approaches allows for a better understanding of the nature of the two different perspectives of text analysis. The study examines the goals, the scope of analysis, and the achievements of the register perspective and those of the genre approach alike. The paper also investigates and reviews in detail the starkly different methods of ESP text analysis applied by the two perspectives. Discovering text analysis from a theoretical and methodological angle supports a practical aspect of English teaching, namely making an informed choice when setting out to analyse

  13. HGCal Simulation Analyses for CMS

    CERN Document Server

    Bruno, Sarah Marie


    This summer, I approached the topic of fast-timing detection of photons from Higgs decays via simulation analyses, working under the supervision of Dr. Adolf Bornheim of the California Institute of Technology. My specific project focused on simulating the high granularity calorimeter for the Compact Muon Solenoid (CMS) experiment. CMS detects particles using calorimeters. The Electromagnetic Calorimeter (ECal) is arranged cylindrically to form a barrel section and two “endcaps.” Previously, both the barrel and endcap have employed lead tungstate crystal detectors, known as the “shashlik” design. The crystal detectors, however, rapidly degrade from exposure to radiation. This effect is most pronounced in the endcaps. To avoid the high expense of frequently replacing degraded detectors, it was recently decided to eliminate the endcap crystals in favor of an arrangement of silicon detectors known as the “High Granularity Calorimeter” (HGCal), while leaving the barrel detector technology unchanged. T...

  14. Analysing performance through value creation

    Directory of Open Access Journals (Sweden)

    Adrian TRIFAN


    Full Text Available This paper draws a parallel between measuring financial performance in 2 variants: the first one using data offered by accounting, which lays emphasis on maximizing profit, and the second one which aims to create value. The traditional approach to performance is based on some indicators from accounting data: ROI, ROE, EPS. The traditional management, based on analysing the data from accounting, has shown its limits, and a new approach is needed, based on creating value. The evaluation of value based performance tries to avoid the errors due to accounting data, by using other specific indicators: EVA, MVA, TSR, CVA. The main objective is shifted from maximizing the income to maximizing the value created for shareholders. The theoretical part is accompanied by a practical analysis regarding the creation of value and an analysis of the main indicators which evaluate this concept.

  15. Retorisk analyse af historiske tekster

    DEFF Research Database (Denmark)

    Kock, Christian Erik J


    scholars who identify themselves as rhetoricians tend to define and conduct such an analysis. It is argued that while rhetoricians would sympathize with Skinner’s adoption of speech act theory in his reading of historical documents, they would generally extend their rhetorical readings of such documents......In recent years, rhetoric and the rhetorical tradition has attracted increasing interest from historians, such as, e.g., Quentin Skinner. The paper aims to explain and illustrate what may be understood by a rhetorical analysis (or “rhetorical criticism”) of historical documents, i.e., how those...... to many more features than just the key concepts invoked in them. The paper discusses examples of rhetorical analyses done by prominent contemporary rhetoricians, including Edwin Black, Kenneth Burke, Maurice Charland, and Michael Leff. It relates its view of rhetorical documents to trends in current...

  16. Uncertainty and Sensitivity Analyses Plan

    Energy Technology Data Exchange (ETDEWEB)

    Simpson, J.C.; Ramsdell, J.V. Jr.


    Hanford Environmental Dose Reconstruction (HEDR) Project staff are developing mathematical models to be used to estimate the radiation dose that individuals may have received as a result of emissions since 1944 from the US Department of Energy's (DOE) Hanford Site near Richland, Washington. An uncertainty and sensitivity analyses plan is essential to understand and interpret the predictions from these mathematical models. This is especially true in the case of the HEDR models where the values of many parameters are unknown. This plan gives a thorough documentation of the uncertainty and hierarchical sensitivity analysis methods recommended for use on all HEDR mathematical models. The documentation includes both technical definitions and examples. In addition, an extensive demonstration of the uncertainty and sensitivity analysis process is provided using actual results from the Hanford Environmental Dose Reconstruction Integrated Codes (HEDRIC). This demonstration shows how the approaches used in the recommended plan can be adapted for all dose predictions in the HEDR Project.

  17. Analysing the Wrongness of Killing

    DEFF Research Database (Denmark)

    Di Nucci, Ezio


    This article provides an in-depth analysis of the wrongness of killing by comparing different versions of three influential views: the traditional view that killing is always wrong; the liberal view that killing is wrong if and only if the victim does not want to be killed; and Don Marquis‟ future...... of value account of the wrongness of killing. In particular, I illustrate the advantages that a basic version of the liberal view and a basic version of the future of value account have over competing alternatives. Still, ultimately none of the views analysed here are satisfactory; but the different...... reasons why those competing views fail provide important insights into the ethics of killing....

  18. Analysing Protocol Stacks for Services

    DEFF Research Database (Denmark)

    Gao, Han; Nielson, Flemming; Nielson, Hanne Riis


    We show an approach, CaPiTo, to model service-oriented applications using process algebras such that, on the one hand, we can achieve a certain level of abstraction without being overwhelmed by the underlying implementation details and, on the other hand, we respect the concrete industrial...... standards used for implementing the service-oriented applications. By doing so, we will be able to not only reason about applications at different levels of abstractions, but also to build a bridge between the views of researchers on formal methods and developers in industry. We apply our approach...... to the financial case study taken from Chapter 0-3. Finally, we develop a static analysis to analyse the security properties as they emerge at the level of concrete industrial protocols....

  19. THOR Turbulence Electron Analyser: TEA (United States)

    Fazakerley, Andrew; Samara, Marilia; Hancock, Barry; Wicks, Robert; Moore, Tom; Rust, Duncan; Jones, Jonathan; Saito, Yoshifumi; Pollock, Craig; Owen, Chris; Rae, Jonny


    Turbulence Heating ObserveR (THOR) is the first mission ever flown in space dedicated to plasma turbulence. The Turbulence Electron Analyser (TEA) will measure the plasma electron populations in the mission's Regions of Interest. It will collect a 3D electron velocity distribution with cadences as short as 5 ms. The instrument will be capable of measuring energies up to 30 keV. TEA consists of multiple electrostatic analyser heads arranged so as to measure electrons arriving from look directions covering the full sky, i.e. 4 pi solid angle. The baseline concept is similar to the successful FPI-DES instrument currently operating on the MMS mission. TEA is intended to have a similar angular resolution, but a larger geometric factor. In comparison to earlier missions, TEA improves on the measurement cadence. For example, MMS FPI-DES routinely operates at 30 ms cadence. The objective of measuring distributions at rates as fast as 5 ms is driven by the mission's scientific requirements to resolve electron gyroscale size structures, where plasma heating and fluctuation dissipation is predicted to occur. TEA will therefore be capable of making measurements of the evolution of distribution functions across thin (a few km) current sheets travelling past the spacecraft at up to 600 km/s, of the Power Spectral Density of fluctuations of electron moments and of distributions fast enough to match frequencies with waves expected to be dissipating turbulence (e.g. with 100 Hz whistler waves). A novel capability to time tag individual electron events during short intervals for the purposes of ground analysis of wave-particle interactions is also planned.

  20. Genetic analyses of captive Alala (Corvus hawaiiensis) using AFLP analyses (United States)

    Jarvi, Susan I.; Bianchi, Kiara R.


    affected by the mutation rate at microsatellite loci, thus introducing a bias. Also, the number of loci that can be studied is frequently limited to fewer than 10. This theoretically represents a maximum of one marker for each of 10 chromosomes. Dominant markers like AFLP allow a larger fraction of the genome to be screened. Large numbers of loci can be screened by AFLP to resolve very small individual differences that can be used for identification of individuals, estimates of pairwise relatedness and, in some cases, for parentage analyses. Since AFLP is a dominant marker (can not distinguish between +/+ homozygote versus +/- heterozygote), it has limitations for parentage analyses. Only when both parents are homozygous for the absence of alleles (-/-) and offspring show a presence (+/+ or +/-) can the parents be excluded. In this case, microsatellites become preferable as they have the potential to exclude individual parents when the other parent is unknown. Another limitation of AFLP is that the loci are generally less polymorphic (only two alleles/locus) than microsatellite loci (often >10 alleles/locus). While generally fewer than 10 highly polymorphic microsatellite loci are enough to exclude and assign parentage, it might require up to 100 or more AFLP loci. While there are pros and cons to different methodologies, the total number of loci evaluated by AFLP generally offsets the limitations imposed due to the dominant nature of this approach and end results between methods are generally comparable. Overall objectives of this study were to evaluate the level of genetic diversity in the captive population of Alala, to compare genetic data with currently available pedigree information, and to determine the extent of relatedness of mating pairs and among founding individuals.

  1. Severe Accident Recriticality Analyses (SARA)

    Energy Technology Data Exchange (ETDEWEB)

    Frid, W. [Swedish Nuclear Power Inspectorate, Stockholm (Sweden); Hoejerup, F. [Risoe National Lab. (Denmark); Lindholm, I.; Miettinen, J.; Puska, E.K. [VTT Energy, Helsinki (Finland); Nilsson, Lars [Studsvik Eco and Safety AB, Nykoeping (Sweden); Sjoevall, H. [Teoliisuuden Voima Oy (Finland)


    Recriticality in a BWR has been studied for a total loss of electric power accident scenario. In a BWR, the B{sub 4}C control rods would melt and relocate from the core before the fuel during core uncovery and heat-up. If electric power returns during this time-window unborated water from ECCS systems will start to reflood the partly control rod free core. Recriticality might take place for which the only mitigating mechanisms are the Doppler effect and void formation. In order to assess the impact of recriticality on reactor safety, including accident management measures, the following issues have been investigated in the SARA project: 1. the energy deposition in the fuel during super-prompt power burst, 2. the quasi steady-state reactor power following the initial power burst and 3. containment response to elevated quasi steady-state reactor power. The approach was to use three computer codes and to further develop and adapt them for the task. The codes were SIMULATE-3K, APROS and RECRIT. Recriticality analyses were carried out for a number of selected reflooding transients for the Oskarshamn 3 plant in Sweden with SIMULATE-3K and for the Olkiluoto 1 plant in Finland with all three codes. The core state initial and boundary conditions prior to recriticality have been studied with the severe accident codes SCDAP/RELAP5, MELCOR and MAAP4. The results of the analyses show that all three codes predict recriticality - both superprompt power bursts and quasi steady-state power generation - for the studied range of parameters, i. e. with core uncovery and heat-up to maximum core temperatures around 1800 K and water flow rates of 45 kg/s to 2000 kg/s injected into the downcomer. Since the recriticality takes place in a small fraction of the core the power densities are high which results in large energy deposition in the fuel during power burst in some accident scenarios. The highest value, 418 cal/g, was obtained with SIMULATE-3K for an Oskarshamn 3 case with reflooding

  2. Ergonomic analyses of downhill skiing. (United States)

    Clarys, J P; Publie, J; Zinzen, E


    The purpose of this study was to provide electromyographic feedback for (1) pedagogical advice in motor learning, (2) the ergonomics of materials choice and (3) competition. For these purposes: (1) EMG data were collected for the Stem Christie, the Stem Turn and the Parallel Christie (three basic ski initiation drills) and verified for the complexity of patterns; (2) integrated EMG (iEMG) and linear envelopes (LEs) were analysed from standardized positions, motions and slopes using compact, soft and competition skis; (3) in a simulated 'parallel special slalom', the muscular activity pattern and intensity of excavated and flat snow conditions were compared. The EMG data from the three studies were collected on location in the French Alps (Tignes). The analog raw EMG was recorded on the slopes with a portable seven-channel FM recorder (TEAC MR30) and with pre-amplified bipolar surface electrodes supplied with a precision instrumentation amplifier (AD 524, Analog Devices, Norwood, USA). The raw signal was full-wave rectified and enveloped using a moving average principle. This linear envelope was normalized according to the highest peak amplitude procedure per subject and was integrated in order to obtain a reference of muscular intensity. In the three studies and for all subjects (elite skiers: n = 25 in studies 1 and 2, n = 6 in study 3), we found a high level of co-contractions in the lower limb extensors and flexors, especially during the extension phase of the ski movement. The Stem Christie and the Parallel Christie showed higher levels of rhythmic movement (92 and 84%, respectively).(ABSTRACT TRUNCATED AT 250 WORDS)

  3. Automatic incrementalization of Prolog based static analyses

    DEFF Research Database (Denmark)

    Eichberg, Michael; Kahl, Matthias; Saha, Diptikalyan


    Modem development environments integrate various static analyses into the build process. Analyses that analyze the whole project whenever the project changes are impractical in this context. We present an approach to automatic incrementalization of analyses that are specified as tabled logic...... incrementalizing a broad range of static analyses....

  4. Pawnee Nation Energy Option Analyses

    Energy Technology Data Exchange (ETDEWEB)

    Matlock, M.; Kersey, K.; Riding In, C.


    Pawnee Nation of Oklahoma Energy Option Analyses In 2003, the Pawnee Nation leadership identified the need for the tribe to comprehensively address its energy issues. During a strategic energy planning workshop a general framework was laid out and the Pawnee Nation Energy Task Force was created to work toward further development of the tribe’s energy vision. The overarching goals of the “first steps” project were to identify the most appropriate focus for its strategic energy initiatives going forward, and to provide information necessary to take the next steps in pursuit of the “best fit” energy options. Description of Activities Performed The research team reviewed existing data pertaining to the availability of biomass (focusing on woody biomass, agricultural biomass/bio-energy crops, and methane capture), solar, wind and hydropower resources on the Pawnee-owned lands. Using these data, combined with assumptions about costs and revenue streams, the research team performed preliminary feasibility assessments for each resource category. The research team also reviewed available funding resources and made recommendations to Pawnee Nation highlighting those resources with the greatest potential for financially-viable development, both in the near-term and over a longer time horizon. Findings and Recommendations Due to a lack of financial incentives for renewable energy, particularly at the state level, combined mediocre renewable energy resources, renewable energy development opportunities are limited for Pawnee Nation. However, near-term potential exists for development of solar hot water at the gym, and an exterior wood-fired boiler system at the tribe’s main administrative building. Pawnee Nation should also explore options for developing LFGTE resources in collaboration with the City of Pawnee. Significant potential may also exist for development of bio-energy resources within the next decade. Pawnee Nation representatives should closely monitor

  5. Techniques for Analysing Problems in Engineering Projects

    DEFF Research Database (Denmark)

    Thorsteinsson, Uffe


    Description of how CPM network can be used for analysing complex problems in engineering projects.......Description of how CPM network can be used for analysing complex problems in engineering projects....

  6. Serge Dassault, chair of the Dassault Group and Socpresse and senator of Essonne, participated in the Amicable Economic and Social Council of France at CERN on 15 June.

    CERN Multimedia

    Maximilien Brice


    Dassault visited the underground cavern of the ATLAS experiment together with his son, Olivier, and Jean Jacques Blaising, head of the Physics Department. The participants also toured the LHC magnet assembly and testing hall, and the surface assembly hall and experimental cavern of the CMS experiment.

  7. 10 CFR 61.13 - Technical analyses. (United States)


    ... 10 Energy 2 2010-01-01 2010-01-01 false Technical analyses. 61.13 Section 61.13 Energy NUCLEAR REGULATORY COMMISSION (CONTINUED) LICENSING REQUIREMENTS FOR LAND DISPOSAL OF RADIOACTIVE WASTE Licenses § 61.13 Technical analyses. The specific technical information must also include the following analyses...

  8. [Anne Arold. Kontrastive Analyse...] / Paul Alvre

    Index Scriptorium Estoniae

    Alvre, Paul, 1921-2008


    Arvustus: Arold, Anne. Kontrastive analyse der Wortbildungsmuster im Deutschen und im Estnischen (am Beispiel der Aussehensadjektive). Tartu, 2000. (Dissertationes philologiae germanicae Universitatis Tartuensis)

  9. Analysing Biochemical Oscillations through Probabilistic Model Checking

    DEFF Research Database (Denmark)

    Ballarini, Paolo; Mardare, Radu Iulian; Mura, Ivan


    Analysing Biochemical Oscillations through Probabilistic Model Checking. In Proc. of the Second International Workshop "From Biology To Concurrency" (FBTC 2008), Electronic Notes in Theoretical Computer Science......Analysing Biochemical Oscillations through Probabilistic Model Checking. In Proc. of the Second International Workshop "From Biology To Concurrency" (FBTC 2008), Electronic Notes in Theoretical Computer Science...

  10. New environmental metabarcodes for analysing soil DNA

    DEFF Research Database (Denmark)

    Epp, Laura S.; Boessenkool, Sanne; Bellemain, Eva P.


    Metabarcoding approaches use total and typically degraded DNA from environmental samples to analyse biotic assemblages and can potentially be carried out for any kinds of organisms in an ecosystem. These analyses rely on specific markers, here called metabarcodes, which should be optimized for ta...

  11. Spectral analyses of asteroids' linear features (United States)

    Longobardo, A.; Palomba, E.; Scully, J. E. C.; De Sanctis, M. C.; Capaccioni, F.; Tosi, F.; Zinzi, A.; Galiano, A.; Ammannito, E.; Filacchione, G.; Ciarniello, M.; Raponi, A.; Zambon, F.; Capria, M. T.; Erard, S.; Bockelee-Morvan, D.; Leyrat, C.; Dirri, F.; Nardi, L.; Raymond, C. A.


    Linear features are commonly found on small bodies and can have a geomorphic or tectonic origin. Generally, these features are studied by means of morphological analyses. Here we propose a spectroscopic analyses of linear features of different asteroids visited by space missions, in order to search for correspondence between spectral properties and origin of linear features.

  12. Random error in cardiovascular meta-analyses

    DEFF Research Database (Denmark)

    Albalawi, Zaina; McAlister, Finlay A; Thorlund, Kristian


    BACKGROUND: Cochrane reviews are viewed as the gold standard in meta-analyses given their efforts to identify and limit systematic error which could cause spurious conclusions. The potential for random error to cause spurious conclusions in meta-analyses is less well appreciated. METHODS: We...

  13. Analyse de risques d'installations industrielles


    Pineau, Jean-Philippe


    L'analyse de risques industriels a été entreprise de longue date pour des industries où les accidents pouvaient avoir des effets catastrophiques : fabrication des explosifs, exploitation des mines de charbon, chimie, pétrole. Cette analyse a permis de mieux comprendre les phénomènes mis en jeu et leurs conséquences.

  14. Novel Algorithms for Astronomical Plate Analyses

    Indian Academy of Sciences (India)


    Jan 27, 2016 ... Powerful computers and dedicated software allow effective data mining and scientific analyses in astronomical plate archives. We give and discuss examples of newly developed algorithms for astronomical plate analyses, e.g., searches for optical transients, as well as for major spectral and brightness ...

  15. Level II Ergonomic Analyses, Dover AFB, DE (United States)


    IERA-RS-BR-TR-1999-0002 UNITED STATES AIR FORCE IERA Level II Ergonomie Analyses, Dover AFB, DE Andrew Marcotte Marilyn Joyce The Joyce...Project (070401881, Washington, DC 20503. 1. AGENCY USE ONLY (Leave blank) 2. REPORT DATE 4. TITLE AND SUBTITLE Level II Ergonomie Analyses, Dover...1.0 INTRODUCTION 1-1 1.1 Purpose Of The Level II Ergonomie Analyses : 1-1 1.2 Approach 1-1 1.2.1 Initial Shop Selection and Administration of the

  16. Comparison with Russian analyses of meteor impact

    Energy Technology Data Exchange (ETDEWEB)

    Canavan, G.H.


    The inversion model for meteor impacts is used to discuss Russian analyses and compare principal results. For common input parameters, the models produce consistent estimates of impactor parameters. Directions for future research are discussed and prioritized.

  17. Cost-Benefit Analyses of Transportation Investments

    DEFF Research Database (Denmark)

    Næss, Petter


    This paper discusses the practice of cost-benefit analyses of transportation infrastructure investment projects from the meta-theoretical perspective of critical realism. Such analyses are based on a number of untenable ontological assumptions about social value, human nature and the natural...... environment. In addition, main input data are based on transport modelling analyses based on a misleading `local ontology' among the model makers. The ontological misconceptions translate into erroneous epistemological assumptions about the possibility of precise predictions and the validity of willingness......-to-pay investigations. Accepting the ontological and epistemological assumptions of cost-benefit analysis involves an implicit acceptance of the ethical and political values favoured by these assumptions. Cost-benefit analyses of transportation investment projects tend to neglect long-term environmental consequences...

  18. Understanding Human Error Based on Automated Analyses (United States)

    National Aeronautics and Space Administration — This is a report on a continuing study of automated analyses of experiential textual reports to gain insight into the causal factors of human errors in aviation...

  19. Analyse of Maintenance Cost in ST

    CERN Document Server

    Jenssen, B W


    An analyse has been carried out in ST concerning the total costs for the division. Even though the target was the maintenance costs in ST, the global budget over has been analysed. This has been done since there is close relation between investments & consolidation and the required level for maintenance. The purpose of the analyse was to focus on maintenance cost in ST as a ratio of total maintenance costs over the replacement value of the equipment, and to make some comparisons with other industries and laboratories. Families of equipment have been defined and their corresponding ratios calculated. This first approach gives us some "quantitative" measurements. This analyse should be combined with performance indicators (more "qualitative" measurements) that are telling us how well we are performing. This will help us in defending our budget, make better priorities, and we will satisfy the requirements from our external auditors.

  20. Interactive graphics for functional data analyses. (United States)

    Wrobel, Julia; Park, So Young; Staicu, Ana Maria; Goldsmith, Jeff

    Although there are established graphics that accompany the most common functional data analyses, generating these graphics for each dataset and analysis can be cumbersome and time consuming. Often, the barriers to visualization inhibit useful exploratory data analyses and prevent the development of intuition for a method and its application to a particular dataset. The refund.shiny package was developed to address these issues for several of the most common functional data analyses. After conducting an analysis, the plot shiny() function is used to generate an interactive visualization environment that contains several distinct graphics, many of which are updated in response to user input. These visualizations reduce the burden of exploratory analyses and can serve as a useful tool for the communication of results to non-statisticians.

  1. Thermal Analyse sof Cross-Linked Polyethylene

    Directory of Open Access Journals (Sweden)

    Radek Polansky


    Full Text Available The paper summarizes results obtained during the structural analyses measurements (Differential Scanning Calorimetry DSC, Thermogravimetry TG, Thermomechanical analysis TMA and Fourier transform infrared spectroscopy FT-IR. The samples of cross-linked polyethylene cable insulation were tested via these analyses. The DSC and TG were carried out using simultaneous thermal analyzer TA Instruments SDT Q600 with connection of Fourier transform infrared spectrometer Nicolet 380. Thermomechanical analysis was carried out by TMA Q400EM TA Instruments apparatus.


    African Journals Online (AJOL)


    (Euphorbiaceae). ANALYSE DES PERCEPTIONS LOCALES ET DES FACTEURS ... Une Analyse en Composantes Principales a été appliquée à la matrice .... valeur de la variable aléatoire normale pour un risque α égal à 0,05. La marge d'erreur d prévue pour tout paramètre à estimer à partir de l'enquête est de 3 %.

  3. A History of Rotorcraft Comprehensive Analyses (United States)

    Johnson, Wayne


    A history of the development of rotorcraft comprehensive analyses is presented. Comprehensive analyses are digital computer programs that calculate the aeromechanical behavior of the rotor and aircraft, bringing together the most advanced models of the geometry, structure, dynamics, and aerodynamics available in rotary wing technology. The development of the major codes of the last five decades from industry, government, and universities is described. A number of common themes observed in this history are discussed.

  4. A theoretical framework for analysing preschool teaching

    DEFF Research Database (Denmark)

    Chaiklin, Seth


    This article introduces a theoretical framework for analysing preschool teaching as a historically-grounded societal practice. The aim is to present a unified framework that can be used to analyse and compare both historical and contemporary examples of preschool teaching practice within and across...... national traditions. The framework has two main components, an analysis of preschool teaching as a practice, formed in relation to societal needs, and an analysis of the categorical relations which necessarily must be addressed in preschool teaching activity. The framework is introduced and illustrated...... through the analysis of one of the earliest recorded examples of preschool education (initiated by J. F. Oberlin in northeastern France in 1767). The general idea of societal need is elaborated as a way of analysing practices, and a general analytic schema is presented for characterising preschool...

  5. Analyses of hydraulic performance of velocity caps

    DEFF Research Database (Denmark)

    Christensen, Erik Damgaard; Degn Eskesen, Mark Chr.; Buhrkall, Jeppe


    The hydraulic performance of a velocity cap has been investigated. Velocity caps are often used in connection with offshore intakes. CFD (computational fluid dynamics) examined the flow through the cap openings and further down into the intake pipes. This was combined with dimension analyses...... in order to analyse the effect of different layouts on the flow characteristics. In particular, flow configurations going all the way through the structure were revealed. A couple of suggestions to minimize the risk for flow through have been tested....

  6. Power System Oscillatory Behaviors: Sources, Characteristics, & Analyses

    Energy Technology Data Exchange (ETDEWEB)

    Follum, James D. [Pacific Northwest National Lab. (PNNL), Richland, WA (United States); Tuffner, Francis K. [Pacific Northwest National Lab. (PNNL), Richland, WA (United States); Dosiek, Luke A. [Union College, Schenectady, NY (United States); Pierre, John W. [Univ. of Wyoming, Laramie, WY (United States)


    This document is intended to provide a broad overview of the sources, characteristics, and analyses of natural and forced oscillatory behaviors in power systems. These aspects are necessarily linked. Oscillations appear in measurements with distinguishing characteristics derived from the oscillation’s source. These characteristics determine which analysis methods can be appropriately applied, and the results from these analyses can only be interpreted correctly with an understanding of the oscillation’s origin. To describe oscillations both at their source within a physical power system and within measurements, a perspective from the boundary between power system and signal processing theory has been adopted.

  7. Subgroup analyses in cost-effectiveness analyses to support health technology assessments. (United States)

    Fletcher, Christine; Chuang-Stein, Christy; Paget, Marie-Ange; Reid, Carol; Hawkins, Neil


    'Success' in drug development is bringing to patients a new medicine that has an acceptable benefit-risk profile and that is also cost-effective. Cost-effectiveness means that the incremental clinical benefit is deemed worth paying for by a healthcare system, and it has an important role in enabling manufacturers to obtain new medicines to patients as soon as possible following regulatory approval. Subgroup analyses are increasingly being utilised by decision-makers in the determination of the cost-effectiveness of new medicines when making recommendations. This paper highlights the statistical considerations when using subgroup analyses to support cost-effectiveness for a health technology assessment. The key principles recommended for subgroup analyses supporting clinical effectiveness published by Paget et al. are evaluated with respect to subgroup analyses supporting cost-effectiveness. A health technology assessment case study is included to highlight the importance of subgroup analyses when incorporated into cost-effectiveness analyses. In summary, we recommend planning subgroup analyses for cost-effectiveness analyses early in the drug development process and adhering to good statistical principles when using subgroup analyses in this context. In particular, we consider it important to provide transparency in how subgroups are defined, be able to demonstrate the robustness of the subgroup results and be able to quantify the uncertainty in the subgroup analyses of cost-effectiveness. Copyright © 2014 John Wiley & Sons, Ltd.


    African Journals Online (AJOL)

    it will be demonstrated that a phonological analysis (of the same phenome- non), based on verified phonetic data, ... rectness of phonetic data on which phonological analyses are eventually based. Or, seen from another angle, very seldom ...... An Introduction to Tswana Grammar. Longmans. Daniloff, R. & R. HalIIDlarberg: ...

  9. Quantitative analyses of shrinkage characteristics of neem ...

    African Journals Online (AJOL)

    Quantitative analyses of shrinkage characteristics of neem (Azadirachta indica A. Juss.) wood were carried out. Forty five wood specimens were prepared from the three ecological zones of north eastern Nigeria, viz: sahel savanna, sudan savanna and guinea savanna for the research. The results indicated that the wood ...

  10. Thermodynamic modeling to analyse composition of carbonaceous ...

    Indian Academy of Sciences (India)

    Thermodynamic modeling to analyse composition of carbonaceous coatings of MnO and other oxides of manganese grown by MOCVD. SUKANYA DHAR†, A VARADE and S A SHIVASHANKAR. ∗. Materials Research Centre, Indian Institute of Science, Bangalore 560 012, India. †Mechanical Engineering Department ...

  11. Comparative sequence analyses of genome and transcriptome ...

    Indian Academy of Sciences (India)


    Dec 4, 2015 ... This work therefore provides a valuable resource to explore the immense research potential of comparative analyses of transcriptome .... species and identified domain architectures that are overrep- resented in elephants. 2. Methods. 2.1 Sample collection, extraction of nucleic acids and next-generation ...

  12. Heritability estimates derived from threshold analyses for ...

    African Journals Online (AJOL)

    Heritability estimates derived from threshold analyses for reproduction and stayability traits in a beef cattle herd. ... South African Journal of Animal Science ... The object of this study was to estimate heritabilities and sire breeding values for stayability and reproductive traits in a composite multibreed beef cattle herd using a ...

  13. Cosmetology: Task Analyses. Competency-Based Education. (United States)

    Henrico County Public Schools, Glen Allen, VA. Virginia Vocational Curriculum Center.

    These task analyses are designed to be used in combination with the "Trade and Industrial Education Service Area Resource" in order to implement competency-based education in the cosmetology program in Virginia. The task analysis document contains the task inventory, suggested task sequence lists, and content outlines for the secondary…

  14. Regression og geometrisk data analyse (2. del)

    DEFF Research Database (Denmark)

    Brinkkjær, Ulf


    Artiklen søger at vise, hvordan regressionsanalyse og geometrisk data analyse kan integreres. Det er interessant, fordi disse metoder ofte opstilles som modsætninger f.eks. som en modsætning mellem beskrivende og forklarende metoder. Artiklens første del bragtes i Praktiske Grunde 3-4 / 2007....

  15. Meta-analyses on viral hepatitis

    DEFF Research Database (Denmark)

    Gluud, Lise L; Gluud, Christian


    This article summarizes the meta-analyses of interventions for viral hepatitis A, B, and C. Some of the interventions assessed are described in small trials with unclear bias control. Other interventions are supported by large, high-quality trials. Although attempts have been made to adjust...

  16. En kvantitativ metode til analyse af radio

    Directory of Open Access Journals (Sweden)

    Christine Lejre


    Full Text Available I den danske såvel som den internationale radiolitteratur er bud på metoder til analyse af radiomediet sparsomme. Det skyldes formentlig, at radiomediet er svært at analysere, fordi det er et medie, der ikke er visualiseret i form af billeder eller understøttet af printet tekst. Denne artikel har til formål at beskrive en ny kvantitativ metode til analyse af radio, der tager særligt hensyn til radiomediets modalitet – lyd struktureret som et lineært forløb i tid. Metoden understøtter dermed både radiomediet som et medie i tid og som et blindt medie. Metoden er udviklet i forbindelse med en komparativ analyse af kulturprogrammer på P1 og Radio24syv lavet for Danmarks Radio. Artiklen peger på, at metoden er velegnet til analyse af ikke kun radio, men også andre medieplatforme samt forskellige journalistiske stofområder.

  17. Heritability estimates derived from threshold analyses for ...

    African Journals Online (AJOL)


    Linear model methodology, such as Henderson's method III, has frequently been used for the analysis of discontinuous as well as continuous data (Olivier et al. 1998). This method of analysing discontinuous data with linear procedures is based on continuous phenotypic distributions and does not take the discontinuity of ...

  18. Uncertainty quantification approaches for advanced reactor analyses.

    Energy Technology Data Exchange (ETDEWEB)

    Briggs, L. L.; Nuclear Engineering Division


    The original approach to nuclear reactor design or safety analyses was to make very conservative modeling assumptions so as to ensure meeting the required safety margins. Traditional regulation, as established by the U. S. Nuclear Regulatory Commission required conservatisms which have subsequently been shown to be excessive. The commission has therefore moved away from excessively conservative evaluations and has determined best-estimate calculations to be an acceptable alternative to conservative models, provided the best-estimate results are accompanied by an uncertainty evaluation which can demonstrate that, when a set of analysis cases which statistically account for uncertainties of all types are generated, there is a 95% probability that at least 95% of the cases meet the safety margins. To date, nearly all published work addressing uncertainty evaluations of nuclear power plant calculations has focused on light water reactors and on large-break loss-of-coolant accident (LBLOCA) analyses. However, there is nothing in the uncertainty evaluation methodologies that is limited to a specific type of reactor or to specific types of plant scenarios. These same methodologies can be equally well applied to analyses for high-temperature gas-cooled reactors and to liquid metal reactors, and they can be applied to steady-state calculations, operational transients, or severe accident scenarios. This report reviews and compares both statistical and deterministic uncertainty evaluation approaches. Recommendations are given for selection of an uncertainty methodology and for considerations to be factored into the process of evaluating uncertainties for advanced reactor best-estimate analyses.


    African Journals Online (AJOL)


    Ascorbic acid and microbiological analyses of extra - cotyledonous deposits of Pride of Barbados. (Caesalpina pulcherrima) stored at various temperatures were investigated. 2,6 - Dichlorophenolindophenol (dye) solution titration method was used in ascorbic acid determination while. Nutrient and Sabouraud agar were ...

  20. The Economic Cost of Homosexuality: Multilevel Analyses (United States)

    Baumle, Amanda K.; Poston, Dudley, Jr.


    This article builds on earlier studies that have examined "the economic cost of homosexuality," by using data from the 2000 U.S. Census and by employing multilevel analyses. Our findings indicate that partnered gay men experience a 12.5 percent earnings penalty compared to married heterosexual men, and a statistically insignificant earnings…

  1. Secundaire analyses organisatiebeleid psychosociale arbeidsbelasting (PSA)

    NARCIS (Netherlands)

    Kraan, K.O.; Houtman, I.L.D.


    Hoe het organisatiebeleid rond psychosociale arbeidsbelasting (PSA) eruit ziet anno 2014 en welke samenhang er is met ander beleid en uitkomstmaten, zijn de centrale vragen in dit onderzoek. De resultaten van deze verdiepende analyses kunnen ten goede komen aan de lopende campagne ‘Check je

  2. Chemical Analyses of Silicon Aerogel Samples

    CERN Document Server

    van der Werf, I; De Leo, R; Marrone, S


    After five years of operating, two Aerogel counters: A1 and A2, taking data in Hall A at Jefferson Lab, suffered a loss of performance. In this note possible causes of degradation have been studied. In particular, various chemical and physical analyses have been carried out on several Aerogel tiles and on adhesive tape in order to reveal the presence of contaminants.

  3. Three Bibliometric Analyses of Anthropology Literature. (United States)

    Hider, Philip M.


    Describes three bibliometric analyses of articles in the United Kingdom anthropology journal, "Man," focusing on forms of materials cited; relative age of cited publications; and presentation history of articles. Discusses the applicability of bibliometric studies to anthropology librarianship, outlining problems and benefits. (AEF)

  4. Hybrid Logical Analyses of the Ambient Calculus

    DEFF Research Database (Denmark)

    Bolander, Thomas; Hansen, Rene Rydhof


    In this paper, hybrid logic is used to formulate three control flow analyses for Mobile Ambients, a process calculus designed for modelling mobility. We show that hybrid logic is very well-suited to express the semantic structure of the ambient calculus and how features of hybrid logic can...

  5. Microbiological And Physicochemical Analyses Of Oil Contaminated ...

    African Journals Online (AJOL)

    Michael Horsfall

    Microbiological And Physicochemical Analyses Of Oil Contaminated Soil From Major. Motor Mechanic Workshops In Benin City Metropolis,Edo State, Nigeria. EKHAISE, F O; NKWELLE, J. Department of Microbiology, Faculty of Life Sciences, University of Benin, Edo State, Nigeria. ABSTRACT: The ability of microorganisms ...

  6. Heritability estimates derived from threshold analyses for ...

    African Journals Online (AJOL)


    Abstract. The object of this study was to estimate heritabilities and sire breeding values for stayability and reproductive traits in a composite multibreed beef cattle herd using a threshold model. A GFCAT set of programmes was used to analyse reproductive data. Heritabilities and product-moment correlations between.

  7. Comparison of veterinary import risk analyses studies

    NARCIS (Netherlands)

    Vos-de Jong, de C.J.; Conraths, F.J.; Adkin, A.; Jones, E.M.; Hallgren, G.S.; Paisley, L.G.


    Twenty-two veterinary import risk analyses (IRAs) were audited: a) for inclusion of the main elements of risk analysis; b) between different types of IRAs; c) between reviewers' scores. No significant differences were detected between different types of IRAs, although quantitative IRAs and IRAs

  8. Chemical Analyses of Silicon Aerogel Samples

    Energy Technology Data Exchange (ETDEWEB)

    van der Werf, I.; Palmisano, F.; De Leo, Raffaele; Marrone, Stefano


    After five years of operating, two Aerogel counters: A1 and A2, taking data in Hall A at Jefferson Lab, suffered a loss of performance. In this note possible causes of degradation have been studied. In particular, various chemical and physical analyses have been carried out on several Aerogel tiles and on adhesive tape in order to reveal the presence of contaminants.

  9. Grey literature in meta-analyses. (United States)

    Conn, Vicki S; Valentine, Jeffrey C; Cooper, Harris M; Rantz, Marilyn J


    In meta-analysis, researchers combine the results of individual studies to arrive at cumulative conclusions. Meta-analysts sometimes include "grey literature" in their evidential base, which includes unpublished studies and studies published outside widely available journals. Because grey literature is a source of data that might not employ peer review, critics have questioned the validity of its data and the results of meta-analyses that include it. To examine evidence regarding whether grey literature should be included in meta-analyses and strategies to manage grey literature in quantitative synthesis. This article reviews evidence on whether the results of studies published in peer-reviewed journals are representative of results from broader samplings of research on a topic as a rationale for inclusion of grey literature. Strategies to enhance access to grey literature are addressed. The most consistent and robust difference between published and grey literature is that published research is more likely to contain results that are statistically significant. Effect size estimates of published research are about one-third larger than those of unpublished studies. Unfunded and small sample studies are less likely to be published. Yet, importantly, methodological rigor does not differ between published and grey literature. Meta-analyses that exclude grey literature likely (a) over-represent studies with statistically significant findings, (b) inflate effect size estimates, and (c) provide less precise effect size estimates than meta-analyses including grey literature. Meta-analyses should include grey literature to fully reflect the existing evidential base and should assess the impact of methodological variations through moderator analysis.

  10. Radiation shielding analyses for JT-60SU

    Energy Technology Data Exchange (ETDEWEB)

    Suzuki, Y. [Mitsubishi Heavy Industries Ltd., Tokyo (Japan); Neyatani, Y. [Japan Atomic Energy Research Inst., Naka, Ibaraki (Japan). Naka Fusion Research Establishment; Ishida, S.; Ashida, S.; Sawamura, H.; Tominaga, M.; Nishimura, K. [Computer Software Development Co., Ltd., Shinjuku, Tokyo (Japan)


    Radiation shielding analyses were done for JT-60 Super Upgrade (JT-60SU) of JAERI in Japan, and are reported here. From a viewpoint of the operation and the maintenance, it is important how accurately to evaluate the nuclear heating rate in the superconducting magnet and the activation of components around the vacuum vessel by irradiation of fusion neutrons. A boot-strapped calculation step was applied to the analyses to reduce the redundancy of the conservative in the results. The nuclear heating rate in the superconducting magnets and the maximum {gamma}-ray dose rate one month after shutdown in the cryostat were within the design limits of 2 mW/cc and 10 {mu}Sv/hr, respectively, in the nuclear shielding for a D-D neutron production rate of 1x10{sup 18} s{sup -1}. (author)

  11. Analyse om udviklingen i familieretlige konflikter

    DEFF Research Database (Denmark)

    Ottosen, Mai Heide


    Formålet med denne analyse er at kortlægge, hvad man ud fra eksisterende datakilder og undersøgelser kan vurdere om omfanget og karakteren af danske skilsmisseforældres familieretlige konflikter i dag. Analysen kan betragtes som et forarbejde til og et grundlag for videre forskning om familieretl......Formålet med denne analyse er at kortlægge, hvad man ud fra eksisterende datakilder og undersøgelser kan vurdere om omfanget og karakteren af danske skilsmisseforældres familieretlige konflikter i dag. Analysen kan betragtes som et forarbejde til og et grundlag for videre forskning om...... familieretlige konflikter. Analysens tre hovedspørgsmål er: 1) Kan man ud fra befolkningsundersøgelser om skilsmisseudviklingen og om skilsmisseforældres konflikter og samarbejde vurdere, om børn i stigende omfang bliver omfattet af familieretlige konflikter? 2) Er der ud fra de familieretlige myndigheders...

  12. Analysing User Lifetime in Voluntary Online Collaboration

    DEFF Research Database (Denmark)

    McHugh, Ronan; Larsen, Birger


    This paper analyses persuasion in online collaboration projects. It introduces a set of heuristics that can be applied to such projects and combines these with a quantitative analysis of user activity over time. Two example sites are studies, Open Street Map and The Pirate Bay. Results show that ...... that there is a correspondance between some features of site design and user participation patterns in the projects.......This paper analyses persuasion in online collaboration projects. It introduces a set of heuristics that can be applied to such projects and combines these with a quantitative analysis of user activity over time. Two example sites are studies, Open Street Map and The Pirate Bay. Results show...

  13. Pratique de l'analyse fonctionelle

    CERN Document Server

    Tassinari, Robert


    Mettre au point un produit ou un service qui soit parfaitement adapté aux besoins et aux exigences du client est indispensable pour l'entreprise. Pour ne rien laisser au hasard, il s'agit de suivre une méthodologie rigoureuse : celle de l'analyse fonctionnelle. Cet ouvrage définit précisément cette méthode ainsi que ses champs d'application. Il décrit les méthodes les plus performantes en termes de conception de produit et de recherche de qualité et introduit la notion d'analyse fonctionnelle interne. Un ouvrage clé pour optimiser les processus de conception de produit dans son entreprise. -- Idées clés, par Business Digest

  14. Analytical method used for PIXE analyses

    Energy Technology Data Exchange (ETDEWEB)

    Chassot, E. [Laboratoire de Physique Corpusculaire, CNRS-IN2P3, Universite Blaise Pascal, 24, Avenue des Landais, F-63177 Aubiere Cedex (France)]. E-mail:; Irigaray, J.L. [Laboratoire de Physique Corpusculaire, CNRS-IN2P3, Universite Blaise Pascal, 24, Avenue des Landais, F-63177 Aubiere Cedex (France); Terver, S. [Centre Hospitalier Universitaire de Clermont-Ferrand, Service d' Orthopedie et de Traumatologie, Chirurgie Plastique et Reconstructive II, Universite d' Auvergne, F-63000 Clermont-Ferrand Cedex (France); Vanneuville, G. [Faculte de Medecine, Laboratoire d' Anatomie, Universite d' Auvergne, F-63000 Clermont-Ferrand Cedex (France)


    Some metallic prostheses undergo physico-chemical modifications a few years after their implantation. The organism reaction leads to a corrosion process. Consequently, liberation of metallic debris or wear might be observed. The purpose of our analysis was to determine the importance, in surrounding tissues, of the contamination by metallic elements released from joint prosthesis and to localise it. We analysed two types of samples: the first ones were taken during surgical procedure and the other ones were extracted in post-mortem tissues. PIXE technique (Particles Induced X-ray Emission) with a 50 {mu}m proton beam and 3 MeV of energy is an efficient technique to analyse these tissues. We used it to determine qualitatively and quantitatively trace element contamination, and we have developed an analytical method based on the {chi} {sup 2} distribution to separate the different contributions of the different elements, to detect the possible correlation between these metallic elements.

  15. Introduction à l'analyse fonctionnelle

    CERN Document Server

    Reischer, Corina; Hengartner, Walter


    Fruit de la collaboration des professeur Walter Hengarther de l'Université Laval, Marcel Lambert et Corina Reischer de l'Université du Québec à Trois-Rivières, Introduction à l'analyse fonctionnelle se distingue tant par l'étendue de son contenu que par l'accessibilité de sa présentation. Sans céder quoi que ce soit sur la rigueur, il est parfaitement adapté à un premier cours d'analyse fonctionnelle. Tout en étant d'abord destiné aux étudiants en mathématiques, il pourra certes être utile aux étudiants de second cycle en sciences et en génie.

  16. Using ENSO to analyse Cloud Radiative Feedback (United States)

    Kolly, Allison; Huang, Yi


    When attempting to diagnose the climate sensitivity, clouds are the cause of much uncertainty as they are highly variable. There exists a discrepancy between climate models and observations on the sign and magnitude of cloud radiative feedback. For example, Dessler (2013) shows that models predict a very strong, positive feedback response to ENSO sea surface temperature anomalies in the central Pacific which is not present in observations. To better understand these discrepancies we are using radiation data from the CERES satellite and ERAi reanalysis data to look at the most recent El Nino events. By looking at temperature and humidity anomalies in the central Pacific which are associated with these events, and using radiative kernels, we can calculate their radiative effects. We extend previous work by not only performing an analysis of TOA but also analysing the surface and atmospheric radiation budgets. Additionally we analyse the latest GCMs (e.g. CMIP5 models) and compare them to observations.

  17. En Billig GPS Data Analyse Platform

    DEFF Research Database (Denmark)

    Andersen, Ove; Christiansen, Nick; Larsen, Niels T.


    Denne artikel præsenterer en komplet software platform til analyse af GPS data. Platformen er bygget udelukkende vha. open-source komponenter. De enkelte komponenter i platformen beskrives i detaljer. Fordele og ulemper ved at bruge open-source diskuteres herunder hvilke IT politiske tiltage, der...... organisationer med et digitalt vejkort og GPS data begynde at lave trafikanalyser på disse data. Det er et krav, at der er passende IT kompetencer tilstede i organisationen....

  18. Analysing qualitative research data using computer software. (United States)

    McLafferty, Ella; Farley, Alistair H

    An increasing number of clinical nurses are choosing to undertake qualitative research. A number of computer software packages are available designed for the management and analysis of qualitative data. However, while it is claimed that the use of these programs is also increasing, this claim is not supported by a search of recent publications. This paper discusses the advantages and disadvantages of using computer software packages to manage and analyse qualitative data.

  19. Hitchhikers’ guide to analysing bird ringing data

    Directory of Open Access Journals (Sweden)

    Harnos Andrea


    Full Text Available This paper is the second part of our bird ringing data analyses series (Harnos et al. 2015a in which we continue to focus on exploring data using the R software. We give a short description of data distributions and the measures of data spread and explain how to obtain basic descriptive statistics. We show how to detect and select one and two dimensional outliers and explain how to treat these in case of avian ringing data.

  20. Inelastic and Dynamic Fracture and Stress Analyses (United States)

    Atluri, S. N.


    Large deformation inelastic stress analysis and inelastic and dynamic crack propagation research work is summarized. The salient topics of interest in engine structure analysis that are discussed herein include: (1) a path-independent integral (T) in inelastic fracture mechanics, (2) analysis of dynamic crack propagation, (3) generalization of constitutive relations of inelasticity for finite deformations , (4) complementary energy approaches in inelastic analyses, and (5) objectivity of time integration schemes in inelastic stress analysis.

  1. Rotational distortion in conventional allometric analyses. (United States)

    Packard, Gary C


    Three data sets from the recent literature were submitted to new analyses to illustrate the rotational distortion that commonly accompanies traditional allometric analyses and that often causes allometric equations to be inaccurate and misleading. The first investigation focused on the scaling of evaporative water loss to body mass in passerine birds; the second was concerned with the influence of body size on field metabolic rates of rodents; and the third addressed interspecific variation in kidney mass among primates. Straight lines were fitted to logarithmic transformations by Ordinary Least Squares and Generalized Linear Models, and the resulting equations then were re-expressed as two-parameter power functions in the original arithmetic scales. The re-expressed models were displayed on bivariate graphs together with tracings for equations fitted directly to untransformed data by nonlinear regression. In all instances, models estimated by back-transformation failed to describe major features of the arithmetic distribution whereas equations fitted by nonlinear regression performed quite well. The poor performance of equations based on models fitted to logarithms can be traced to the increased weight and leverage exerted in those analyses by observations for small species and to the decreased weight and leverage exerted by large ones. The problem of rotational distortion can be avoided by performing exploratory analysis on untransformed values and by validating fitted models in the scale of measurement. Copyright © 2011 Elsevier Inc. All rights reserved.

  2. Renforcement de l'analyse sociale et de l'analyse sexospécifique en ...

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

    EGRN dans la région MOAN ... Le projet devrait permettre de constituer une solide base de chercheurs rompus à l'analyse sociale et à l'analyse sexospécifique, d'améliorer les moyens de ... Les chaînes de valeur comme leviers stratégiques.

  3. Stable isotopic analyses in paleoclimatic reconstruction

    Energy Technology Data Exchange (ETDEWEB)

    Wigand, P.E. [Univ. and Community College System of Nevada, Reno, NV (United States)


    Most traditional paleoclimatic proxy data have inherent time lags between climatic input and system response that constrain their use in accurate reconstruction of paleoclimate chronology, scaling of its variability, and the elucidation of the processes that determine its impact on the biotic and abiotic environment. With the exception of dendroclimatology, and studies of short-lived organisms and pollen recovered from annually varved lacustrine sediments, significant periods of time ranging from years, to centuries, to millennia may intervene between climate change and its first manifestation in paleoclimatic proxy data records. Reconstruction of past climate through changes in plant community composition derived from pollen sequences and plant remains from ancient woodrat middens, wet environments and dry caves all suffer from these lags. However, stable isotopic analyses can provide more immediate indication of biotic response to climate change. Evidence of past physiological response of organisms to changes in effective precipitation as climate varies can be provided by analyses of the stable isotopic content of plant macrofossils from various contexts. These analyses consider variation in the stable isotopic (hydrogen, oxygen and carbon) content of plant tissues as it reflects (1) past global or local temperature through changes in meteoric (rainfall) water chemistry in the case of the first two isotopes, and (2) plant stress through changes in plant respiration/transpiration processes under differing water availability, and varying atmospheric CO, composition (which itself may actually be a net result of biotic response to climate change). Studies currently being conducted in the Intermountain West indicate both long- and short-term responses that when calibrated with modem analogue studies have the potential of revealing not only the timing of climate events, but their direction, magnitude and rapidity.

  4. Modelling and Analysing Socio-Technical Systems

    DEFF Research Database (Denmark)

    Aslanyan, Zaruhi; Ivanova, Marieta Georgieva; Nielson, Flemming


    and assessing attacks. In our work we model all relevant levels of socio-technical systems, and propose evaluation techniques for analysing the security properties of the model. Our approach simplifies the identification of possible attacks and provides qualified assessment and ranking of attacks based...... on the expected impact. We demonstrate our approach on a home-payment system. The system is specifically designed to help elderly or disabled people, who may have difficulties leaving their home, to pay for some services, e.g., care-taking or rent. The payment is performed using the remote control of a television...

  5. Deux perspectives pour analyser les relations professionnelles


    Dunlop, John T.; Whyte, William F.; Mias, Arnaud


    Cet article est la traduction d’un article paru dans la revue Industrial and Labor Relations Review, qui fait suite à un débat organisé à l’université de Princeton au début de l’année 1949, entre William Foote Whyte (1914-2000) et John Thomas Dunlop (1914-2003) à propos du cadre d’analyse des relations professionnelles (Industrial Relations), qui font alors l’objet de recherches de plus en plus nombreuses aux Etats-Unis. Cette controverse entre l’un des chefs de file du mouvement des “relatio...

  6. Externalizing Behaviour for Analysing System Models

    DEFF Research Database (Denmark)

    Ivanova, Marieta Georgieva; Probst, Christian W.; Hansen, René Rydhof


    , if not impossible task to change behaviours. Especially when considering social engineering or the human factor in general, the ability to use different kinds of behaviours is essential. In this work we present an approach to make the behaviour a separate component in system models, and explore how to integrate...... attackers. Therefore, many attacks are considerably easier to be performed for insiders than for outsiders. However, current models do not support explicit specification of different behaviours. Instead, behaviour is deeply embedded in the analyses supported by the models, meaning that it is a complex...

  7. Analysing human genomes at different scales

    DEFF Research Database (Denmark)

    Liu, Siyang

    genotypes in the Danish Genetics of Overweight Young Adults (GOYA) obesity cohort and prove the clinical usage of the Danish reference panel in genomewide association studies. In the second project, we have collected ultra-low depth sequencing data of more than 140, 000 Chinese pregnant women. We developed...... and applied novel methods to analysing the data that are accumulating rapidly and now reach millions of sample scale. We show that we are able to discover mutations with allele frequencies down to around 0.2% and to explore fine-scale population structure and ancestry across the 31 administrative divisions...

  8. Visuelle Analyse von Eye-Tracking-Daten


    Chen, Xuemei


    Eye-Tracking ist eine der am häufigsten eingesetzten Techniken zur Analyse der Mensch-Computer-Interaktion sowie zur Untersuchung der Perzeption. Die erfassten Eye-Tracking-Daten werden meist mit Heat-Maps oder Scan-Paths analysiert, um die Usability der getesteten Anwendung zu ermitteln oder auf höhere kognitive Prozesse zu schließen. Das Ziel dieser Diplomarbeit ist die Entwicklung neuer Visualisierungstechniken für Eye-Tracking-Daten beziehungsweise die Entwicklung eines Studienkonzepts...

  9. Method of performing computational aeroelastic analyses (United States)

    Silva, Walter A. (Inventor)


    Computational aeroelastic analyses typically use a mathematical model for the structural modes of a flexible structure and a nonlinear aerodynamic model that can generate a plurality of unsteady aerodynamic responses based on the structural modes for conditions defining an aerodynamic condition of the flexible structure. In the present invention, a linear state-space model is generated using a single execution of the nonlinear aerodynamic model for all of the structural modes where a family of orthogonal functions is used as the inputs. Then, static and dynamic aeroelastic solutions are generated using computational interaction between the mathematical model and the linear state-space model for a plurality of periodic points in time.

  10. En analyse av Yoga-kundalini-upanisad


    Martinsen, Fred


    Avhandlingen En analyse av Yoga-kundalini-upanisad bygger på den indiske asketen Narayanaswamy Aiyers engelske oversettelse av Yoga-kundalini-upanisad, utgitt i Thirty Minor Upanisad-s, Including the Yoga Upanisad-s (Oklahoma, Santarasa Publications, 1980). Denne hinduistiske teksten er omtalt som en av de 21 yoga-upanishadene, den åttisjette av de 108 klassiske upanishadene, og utgjør en del av tekstkorpuset Krsna-Yajurveda. Teksten fungerer som en manual i øvelser fra disiplinene hathayoga,...

  11. Fractal and multifractal analyses of bipartite networks (United States)

    Liu, Jin-Long; Wang, Jian; Yu, Zu-Guo; Xie, Xian-Hua


    Bipartite networks have attracted considerable interest in various fields. Fractality and multifractality of unipartite (classical) networks have been studied in recent years, but there is no work to study these properties of bipartite networks. In this paper, we try to unfold the self-similarity structure of bipartite networks by performing the fractal and multifractal analyses for a variety of real-world bipartite network data sets and models. First, we find the fractality in some bipartite networks, including the CiteULike, Netflix, MovieLens (ml-20m), Delicious data sets and (u, v)-flower model. Meanwhile, we observe the shifted power-law or exponential behavior in other several networks. We then focus on the multifractal properties of bipartite networks. Our results indicate that the multifractality exists in those bipartite networks possessing fractality. To capture the inherent attribute of bipartite network with two types different nodes, we give the different weights for the nodes of different classes, and show the existence of multifractality in these node-weighted bipartite networks. In addition, for the data sets with ratings, we modify the two existing algorithms for fractal and multifractal analyses of edge-weighted unipartite networks to study the self-similarity of the corresponding edge-weighted bipartite networks. The results show that our modified algorithms are feasible and can effectively uncover the self-similarity structure of these edge-weighted bipartite networks and their corresponding node-weighted versions.

  12. Hitchhikers’ guide to analysing bird ringing data

    Directory of Open Access Journals (Sweden)

    Harnos Andrea


    Full Text Available Bird ringing datasets constitute possibly the largest source of temporal and spatial information on vertebrate taxa available on the globe. Initially, the method was invented to understand avian migration patterns. However, data deriving from bird ringing has been used in an array of other disciplines including population monitoring, changes in demography, conservation management and to study the effects of climate change to name a few. Despite the widespread usage and importance, there are no guidelines available specifically describing the practice of data management, preparation and analyses of ringing datasets. Here, we present the first of a series of comprehensive tutorials that may help fill this gap. We describe in detail and through a real-life example the intricacies of data cleaning and how to create a data table ready for analyses from raw ringing data in the R software environment. Moreover, we created and present here the R package; ringR, designed to carry out various specific tasks and plots related to bird ringing data. Most methods described here can also be applied to a wide range of capture-recapture type data based on individual marking, regardless to taxa or research question.

  13. Autisme et douleur – analyse bibliographique (United States)

    Dubois, Amandine; Rattaz, Cécile; Pry, René; Baghdadli, Amaria


    La présente analyse bibliographique a pour objectif de réaliser un bilan des travaux publiés dans le champ de la douleur et de l’autisme. L’article aborde, dans un premier temps, les études publiées concernant les modes d’expression de la douleur observés dans cette population. Différentes hypothèses permettant d’expliquer les particularités expressives des personnes avec autisme sont ensuite passées en revue : excès d’endorphines, particularités dans le traitement sensoriel, déficit sociocommunicatif. Cette analyse bibliographique aborde, pour terminer, la question de l’évaluation et de la prise en compte de la douleur chez les personnes avec autisme. Les auteurs concluent à l’absence d’homogénéité des résultats des études publiées et au besoin de poursuivre les recherches afin de parvenir à des données consensuelles sur un domaine d’étude encore peu exploité au plan scientifique. Sur un plan clinique, l’approfondissement des connaissances dans ce domaine devrait permettre de mettre au point des outils d’évaluation de la douleur et d’ainsi en assurer une meilleure prise en charge au quotidien. PMID:20808970

  14. Analyses of containment structures with corrosion damage

    Energy Technology Data Exchange (ETDEWEB)

    Cherry, J.L. [Sandia National Labs., Albuquerque, NM (United States)


    Corrosion damage that has been found in a number of nuclear power plant containment structures can degrade the pressure capacity of the vessel. This has prompted concerns regarding the capacity of corroded containments to withstand accident loadings. To address these concerns, finite element analyses have been performed for a typical PWR Ice Condenser containment structure. Using ABAQUS, the pressure capacity was calculated for a typical vessel with no corrosion damage. Multiple analyses were then performed with the location of the corrosion and the amount of corrosion varied in each analysis. Using a strain-based failure criterion, a {open_quotes}lower bound{close_quotes}, {open_quotes}best estimate{close_quotes}, and {open_quotes}upper bound{close_quotes} failure level was predicted for each case. These limits were established by: determining the amount of variability that exists in material properties of typical containments, estimating the amount of uncertainty associated with the level of modeling detail and modeling assumptions, and estimating the effect of corrosion on the material properties.

  15. Post hoc analyses: after the facts. (United States)

    Srinivas, Titte R; Ho, Bing; Kang, Joseph; Kaplan, Bruce


    Prospective clinical trials are constructed with high levels of internal validity. Sample size and power considerations usually address primary endpoints. Primary endpoints have traditionally included events that are becoming increasingly less common and thus have led to growing use of composite endpoints and noninferiority trial designs in transplantation. This approach may mask real clinical benefit in one or the other domain with regard to either clinically relevant secondary endpoints or other unexpected findings. In addition, endpoints solely chosen based on power considerations are prone to misjudgment of actual treatment effect size as well as consistency of that effect. In the instances where treatment effects may have been underestimated, valuable information may be lost if buried within a composite endpoint. In all these cases, analyses and post hoc analyses of data become relevant in informing practitioners about clinical benefits or safety signals that may not be captured by the primary endpoint. On the other hand, there are many pitfalls in using post hoc determined endpoints. This short review is meant to allow readers to appreciate post hoc analysis not as an entity with a single approach, but rather as an analysis with unique limitations and strengths that often raise new questions to be addressed in further inquiries.


    Energy Technology Data Exchange (ETDEWEB)

    Greenhalgh, W. O.; Yunker, W. H.; Scott, F. A.


    BNWL-1407 summarizes information gained from the Chemical Analyses of Sodium Systems Program pursued by Battelle- Northwest over the period from July 1967 through June 1969. Tasks included feasibility studies for performing coulometric titration and polarographic determinations of oxygen in sodium, and the development of new separation techniques for sodium impurities and their subsequent analyses. The program was terminated ahead of schedule so firm conclusions were not obtained in all areas of the work. At least 40 coulometric titrations were carried out and special test cells were developed for coulometric application. Data indicated that polarographic measurements are theoretically feasible, but practical application of the method was not verified. An emission spectrographic procedure for trace metal impurities was developed and published. Trace metal analysis by a neutron activation technique was shown to be feasible; key to the success of the activation technique was the application of a new ion exchange resin which provided a sodium separation factor of 10{sup 11}. Preliminary studies on direct scavenging of trace metals produced no conclusive results.

  17. Waste Stream Analyses for Nuclear Fuel Cycles

    Energy Technology Data Exchange (ETDEWEB)

    N. R. Soelberg


    A high-level study was performed in Fiscal Year 2009 for the U.S. Department of Energy (DOE) Office of Nuclear Energy (NE) Advanced Fuel Cycle Initiative (AFCI) to provide information for a range of nuclear fuel cycle options (Wigeland 2009). At that time, some fuel cycle options could not be adequately evaluated since they were not well defined and lacked sufficient information. As a result, five families of these fuel cycle options are being studied during Fiscal Year 2010 by the Systems Analysis Campaign for the DOE NE Fuel Cycle Research and Development (FCRD) program. The quality and completeness of data available to date for the fuel cycle options is insufficient to perform quantitative radioactive waste analyses using recommended metrics. This study has been limited thus far to qualitative analyses of waste streams from the candidate fuel cycle options, because quantitative data for wastes from the front end, fuel fabrication, reactor core structure, and used fuel for these options is generally not yet available.

  18. Analyser Framework to Verify Software Components

    Directory of Open Access Journals (Sweden)

    Rolf Andreas Rasenack


    Full Text Available Today, it is important for software companies to build software systems in a short time-interval, to reduce costs and to have a good market position. Therefore well organized and systematic development approaches are required. Reusing software components, which are well tested, can be a good solution to develop software applications in effective manner. The reuse of software components is less expensive and less time consuming than a development from scratch. But it is dangerous to think that software components can be match together without any problems. Software components itself are well tested, of course, but even if they composed together problems occur. Most problems are based on interaction respectively communication. Avoiding such errors a framework has to be developed for analysing software components. That framework determines the compatibility of corresponding software components. The promising approach discussed here, presents a novel technique for analysing software components by applying an Abstract Syntax Language Tree (ASLT. A supportive environment will be designed that checks the compatibility of black-box software components. This article is concerned to the question how can be coupled software components verified by using an analyzer framework and determines the usage of the ASLT. Black-box Software Components and Abstract Syntax Language Tree are the basis for developing the proposed framework and are discussed here to provide the background knowledge. The practical implementation of this framework is discussed and shows the result by using a test environment.

  19. Sensitivity in risk analyses with uncertain numbers.

    Energy Technology Data Exchange (ETDEWEB)

    Tucker, W. Troy; Ferson, Scott


    Sensitivity analysis is a study of how changes in the inputs to a model influence the results of the model. Many techniques have recently been proposed for use when the model is probabilistic. This report considers the related problem of sensitivity analysis when the model includes uncertain numbers that can involve both aleatory and epistemic uncertainty and the method of calculation is Dempster-Shafer evidence theory or probability bounds analysis. Some traditional methods for sensitivity analysis generalize directly for use with uncertain numbers, but, in some respects, sensitivity analysis for these analyses differs from traditional deterministic or probabilistic sensitivity analyses. A case study of a dike reliability assessment illustrates several methods of sensitivity analysis, including traditional probabilistic assessment, local derivatives, and a ''pinching'' strategy that hypothetically reduces the epistemic uncertainty or aleatory uncertainty, or both, in an input variable to estimate the reduction of uncertainty in the outputs. The prospects for applying the methods to black box models are also considered.

  20. Bioinformatics tools for analysing viral genomic data. (United States)

    Orton, R J; Gu, Q; Hughes, J; Maabar, M; Modha, S; Vattipally, S B; Wilkie, G S; Davison, A J


    The field of viral genomics and bioinformatics is experiencing a strong resurgence due to high-throughput sequencing (HTS) technology, which enables the rapid and cost-effective sequencing and subsequent assembly of large numbers of viral genomes. In addition, the unprecedented power of HTS technologies has enabled the analysis of intra-host viral diversity and quasispecies dynamics in relation to important biological questions on viral transmission, vaccine resistance and host jumping. HTS also enables the rapid identification of both known and potentially new viruses from field and clinical samples, thus adding new tools to the fields of viral discovery and metagenomics. Bioinformatics has been central to the rise of HTS applications because new algorithms and software tools are continually needed to process and analyse the large, complex datasets generated in this rapidly evolving area. In this paper, the authors give a brief overview of the main bioinformatics tools available for viral genomic research, with a particular emphasis on HTS technologies and their main applications. They summarise the major steps in various HTS analyses, starting with quality control of raw reads and encompassing activities ranging from consensus and de novo genome assembly to variant calling and metagenomics, as well as RNA sequencing.

  1. Pathway analyses implicate glial cells in schizophrenia.

    Directory of Open Access Journals (Sweden)

    Laramie E Duncan

    Full Text Available The quest to understand the neurobiology of schizophrenia and bipolar disorder is ongoing with multiple lines of evidence indicating abnormalities of glia, mitochondria, and glutamate in both disorders. Despite high heritability estimates of 81% for schizophrenia and 75% for bipolar disorder, compelling links between findings from neurobiological studies, and findings from large-scale genetic analyses, are only beginning to emerge.Ten publically available gene sets (pathways related to glia, mitochondria, and glutamate were tested for association to schizophrenia and bipolar disorder using MAGENTA as the primary analysis method. To determine the robustness of associations, secondary analyses were performed with: ALIGATOR, INRICH, and Set Screen. Data from the Psychiatric Genomics Consortium (PGC were used for all analyses. There were 1,068,286 SNP-level p-values for schizophrenia (9,394 cases/12,462 controls, and 2,088,878 SNP-level p-values for bipolar disorder (7,481 cases/9,250 controls.The Glia-Oligodendrocyte pathway was associated with schizophrenia, after correction for multiple tests, according to primary analysis (MAGENTA p = 0.0005, 75% requirement for individual gene significance and also achieved nominal levels of significance with INRICH (p = 0.0057 and ALIGATOR (p = 0.022. For bipolar disorder, Set Screen yielded nominally and method-wide significant associations to all three glial pathways, with strongest association to the Glia-Astrocyte pathway (p = 0.002.Consistent with findings of white matter abnormalities in schizophrenia by other methods of study, the Glia-Oligodendrocyte pathway was associated with schizophrenia in our genomic study. These findings suggest that the abnormalities of myelination observed in schizophrenia are at least in part due to inherited factors, contrasted with the alternative of purely environmental causes (e.g. medication effects or lifestyle. While not the primary purpose of our study

  2. Department of Energy's team's analyses of Soviet designed VVERs

    Energy Technology Data Exchange (ETDEWEB)


    This document provides Appendices A thru K of this report. The topics discussed respectively are: radiation induced embrittlement and annealing of reactor pressure vessel steels; loss of coolant accident blowdown analyses; LOCA blowdown response analyses; non-seismic structural response analyses; seismic analyses; S'' seal integrity; reactor transient analyses; fire protection; aircraft impacts; and boric acid induced corrosion. (FI).

  3. Mediation Analyses in the Real World

    DEFF Research Database (Denmark)

    Lange, Theis; Starkopf, Liis


    -code in their publications, thereby shortening the road from reading their paper to employing the considered methods on one’s own data. In this commentary, we will try to follow up on these developments by providing a snapshot of how applied mediation analysis was actually conducted in 2015. While we do not expect to find...... it simultaneously ensures that the comparison is based on properties, which matter in actual applications, and makes the comparison accessible for a broader audience. In a wider context, the choice to stay close to real-life problems mirrors a general trend within the literature on mediation analysis namely to put...... applications using the inverse odds ration approach, as it simply has not had enough time to move from theoretical concept to published applied paper, we do expect to be able to judge the willingness of authors and journals to employ the causal inference-based approach to mediation analyses. Our hope...

  4. Feasibility Analyses of Integrated Broiler Production

    Directory of Open Access Journals (Sweden)

    L. Komalasari


    Full Text Available The major obstacles in the development of broiler raising is the expensive price of feed and the fluctuative price of DOCs. The cheap price of imported leg quarters reduces the competitiveness of the local broilers. Therefore, an effort to increase production efficiency is needed through integration between broiler raising and corn farmers and feed producers (integrated farming. The purpose of this study is to analyze the feasibility of integrating broiler raising with corn cultivation and feed production. Besides that, a simulation was conducted to analyze the effects of DOC price changes, broiler price and production capacity. The analyses showed that integrated farming and a mere combination between broiler raising and feed factory of a 10,000 bird capacity is not financially feasible. Increasing the production to 25,000 broiler chickens will make the integrated farming financially feasible. Unintegrated broiler raising is relatively sensitive to broiler price decreases and DOC price increases compared to integrated farming.

  5. Analysing Medieval Urban Space; a methodology

    Directory of Open Access Journals (Sweden)

    Marlous L. Craane MA


    Full Text Available This article has been written in reaction to recent developments in medieval history and archaeology, to study not only the buildings in a town but also the spaces that hold them together. It discusses a more objective and interdisciplinary approach for analysing urban morphology and use of space. It proposes a 'new' methodology by combining town plan analysis and space syntax. This methodology was trialled on the city of Utrecht in the Netherlands. By comparing the results of this 'new' methodology with the results of previous, more conventional, research, this article shows that space syntax can be applied successfully to medieval urban contexts. It does this by demonstrating a strong correlation between medieval economic spaces and the most integrated spaces, just as is found in the study of modern urban environments. It thus provides a strong basis for the use of this technique in future research of medieval urban environments.

  6. Analysing Terrorism from a Systems Thinking Perspective

    Directory of Open Access Journals (Sweden)

    Lukas Schoenenberger


    Full Text Available Given the complexity of terrorism, solutions based on single factors are destined to fail. Systems thinking offers various tools for helping researchers and policy makers comprehend terrorism in its entirety. We have developed a semi-quantitative systems thinking approach for characterising relationships between variables critical to terrorism and their impact on the system as a whole. For a better understanding of the mechanisms underlying terrorism, we present a 16-variable model characterising the critical components of terrorism and perform a series of highly focused analyses. We show how to determine which variables are best suited for government intervention, describing in detail their effects on the key variable—the political influence of a terrorist network. We also offer insights into how to elicit variables that destabilise and ultimately break down these networks. Because we clarify our novel approach with fictional data, the primary importance of this paper lies in the new framework for reasoning that it provides.

  7. Project analysis and integration economic analyses summary (United States)

    Macomber, H. L.


    An economic-analysis summary was presented for the manufacture of crystalline-silicon modules involving silicon ingot/sheet, growth, slicing, cell manufacture, and module assembly. Economic analyses provided: useful quantitative aspects for complex decision-making to the Flat-plate Solar Array (FSA) Project; yardsticks for design and performance to industry; and demonstration of how to evaluate and understand the worth of research and development both to JPL and other government agencies and programs. It was concluded that future research and development funds for photovoltaics must be provided by the Federal Government because the solar industry today does not reap enough profits from its present-day sales of photovoltaic equipment.

  8. Digital analyses of cartometric Fruska Gora guidelines

    Directory of Open Access Journals (Sweden)

    Živković Dragica


    Full Text Available Modern geo morphological topography research have been using quantity statistic and cartographic methods for topographic relief features, mutual relief features, mutual connection analyses on the grounds of good quality numeric parameters etc. Topographic features are important for topographic activities are important for important natural activities. Important morphological characteristics are precisely at the angle of topography, hypsometry, and topography exposition and so on. Small yet unknown relief slants can deeply affect land configuration, hypsometry, topographic exposition etc. Expositions modify the light and heat of interconnected phenomena: soil and air temperature, soil disintegration, the length of vegetation period, the complexity of photosynthesis, the fruitfulness of agricultural crops, the height of snow limit etc. [Projekat Ministarstva nauke Republike Srbije, br. 176008 i br. III44006

  9. Cointegration Approach to Analysing Inflation in Croatia

    Directory of Open Access Journals (Sweden)

    Lena Malešević-Perović


    Full Text Available The aim of this paper is to analyse the determinants of inflation in Croatia in the period 1994:6-2006:6. We use a cointegration approach and find that increases in wages positively influence inflation in the long-run. Furthermore, in the period from June 1994 onward, the depreciation of the currency also contributed to inflation. Money does not explain Croatian inflation. This irrelevance of the money supply is consistent with its endogeneity to exchange rate targeting, whereby the money supply is determined by developments in the foreign exchange market. The value of inflation in the previous period is also found to be significant, thus indicating some inflation inertia.

  10. Attitude stability analyses for small artificial satellites (United States)

    Silva, W. R.; Zanardi, M. C.; Formiga, J. K. S.; Cabette, R. E. S.; Stuchi, T. J.


    The objective of this paper is to analyze the stability of the rotational motion of a symmetrical spacecraft, in a circular orbit. The equilibrium points and regions of stability are established when components of the gravity gradient torque acting on the spacecraft are included in the equations of rotational motion, which are described by the Andoyer's variables. The nonlinear stability of the equilibrium points of the rotational motion is analysed here by the Kovalev-Savchenko theorem. With the application of the Kovalev-Savchenko theorem, it is possible to verify if they remain stable under the influence of the terms of higher order of the normal Hamiltonian. In this paper, numerical simulations are made for a small hypothetical artificial satellite. Several stable equilibrium points were determined and regions around these points have been established by variations in the orbital inclination and in the spacecraft principal moment of inertia. The present analysis can directly contribute in the maintenance of the spacecraft's attitude.

  11. Planning analyses for geothermal district heating

    Energy Technology Data Exchange (ETDEWEB)

    Tessmer, R.G. Jr.; Karkheck, J.


    Methodology and data bases are described which can provide a comprehensive planning assessment of the potential for geothermal district heating in any US market. This economic systems model encompasses life-cycle costing over a period of rising competitive fuel prices, it addresses the expansion and financing of a district system over time, and it includes an overall optimization of system design. The elemental area for all analyses is the census tract, for which published data allow estimation of residential and commercial heating demands, building retrofit requirements, and competitive fuel consumption and cost. A system type design, an appropriate hot water district piping system, and costing of heat supply is performed for groups of contiguous tracts in any urban market. Groups are aggregated, in decreasing benefit to cost order, to achieve optimal systems. A specific application for Salt Lake City, Utah, is also described.

  12. Accurate renormalization group analyses in neutrino sector

    Energy Technology Data Exchange (ETDEWEB)

    Haba, Naoyuki [Graduate School of Science and Engineering, Shimane University, Matsue 690-8504 (Japan); Kaneta, Kunio [Kavli IPMU (WPI), The University of Tokyo, Kashiwa, Chiba 277-8568 (Japan); Takahashi, Ryo [Graduate School of Science and Engineering, Shimane University, Matsue 690-8504 (Japan); Yamaguchi, Yuya [Department of Physics, Faculty of Science, Hokkaido University, Sapporo 060-0810 (Japan)


    We investigate accurate renormalization group analyses in neutrino sector between ν-oscillation and seesaw energy scales. We consider decoupling effects of top quark and Higgs boson on the renormalization group equations of light neutrino mass matrix. Since the decoupling effects are given in the standard model scale and independent of high energy physics, our method can basically apply to any models beyond the standard model. We find that the decoupling effects of Higgs boson are negligible, while those of top quark are not. Particularly, the decoupling effects of top quark affect neutrino mass eigenvalues, which are important for analyzing predictions such as mass squared differences and neutrinoless double beta decay in an underlying theory existing at high energy scale.

  13. Analysing magnetism using scanning SQUID microscopy. (United States)

    Reith, P; Renshaw Wang, X; Hilgenkamp, H


    Scanning superconducting quantum interference device microscopy (SSM) is a scanning probe technique that images local magnetic flux, which allows for mapping of magnetic fields with high field and spatial accuracy. Many studies involving SSM have been published in the last few decades, using SSM to make qualitative statements about magnetism. However, quantitative analysis using SSM has received less attention. In this work, we discuss several aspects of interpreting SSM images and methods to improve quantitative analysis. First, we analyse the spatial resolution and how it depends on several factors. Second, we discuss the analysis of SSM scans and the information obtained from the SSM data. Using simulations, we show how signals evolve as a function of changing scan height, SQUID loop size, magnetization strength, and orientation. We also investigated 2-dimensional autocorrelation analysis to extract information about the size, shape, and symmetry of magnetic features. Finally, we provide an outlook on possible future applications and improvements.

  14. Automating Ultrasonic Vocalization Analyses: The WAAVES Program (United States)

    Reno, James M.; Marker, Bryan; Cormack, Lawrence K.; Schallert, Timothy; Duvauchelle, Christine L.


    Background Human emotion is a crucial component of drug abuse and addiction. Ultrasonic vocalizations (USVs) elicited by rodents are a highly translational animal model of emotion in drug abuse studies. A major roadblock to comprehensive use of USV data is the overwhelming burden to attain accurate USV assessment in a timely manner. One of the most accurate methods of analyzing USVs, human auditory detection with simultaneous spectrogram inspection, requires USV sound files to be played back 4% normal speed. New Method WAAVES (WAV-file Automated Analysis of Vocalizations Environment Specific) is an automated USV assessment program utilizing MATLAB’s Signal and Image Processing Toolboxes in conjunction with a series of customized filters to separate USV calls from background noise, and accurately tabulate and categorize USVs as flat or frequency-modulated (FM) calls. In the current report, WAAVES functionality is demonstrated by USV analyses of cocaine self-administration data collected over 10 daily sessions. Results WAAVES counts are significantly correlated with human auditory counts (r(48)=0.9925; p<0.001). Statistical analyses used WAAVES output to examine individual differences in USV responses to cocaine, cocaine-associated cues and relationships between USVs, cocaine intake and locomotor activity. Comparison with Existing Method WAAVES output is highly accurate and provides tabulated data in approximately 0.4% of the time required when using human auditory detection methods. Conclusions The development of a customized USV analysis program, such as WAAVES streamlines USV assessment and enhances the ability to utilize USVs as a tool to advance drug abuse research and ultimately develop effective treatments. PMID:23832016

  15. Risques naturels en montagne et analyse spatiale

    Directory of Open Access Journals (Sweden)

    Yannick Manche


    Full Text Available Le concept de risque repose sur deux notions :l'aléa, qui représente le phénomène physique par son amplitude et sa période retour ;la vulnérabilité, qui représente l'ensemble des biens et des personnes pouvant être touchés par un phénomène naturel.Le risque se définit alors comme le croisement de ces deux notions. Cette vision théorique permet de modéliser indépendamment les aléas et la vulnérabilité.Ce travail s'intéresse essentiellement à la prise en compte de la vulnérabilité dans la gestion des risques naturels. Son évaluation passe obligatoirement par une certaine analyse spatiale qui prend en compte l'occupation humaine et différentes échelles de l'utilisation de l'espace. Mais l'évaluation spatiale, que ce soit des biens et des personnes, ou des effets indirects se heurte à de nombreux problèmes. Il faut estimer l'importance de l'occupation de l'espace. Par ailleurs, le traitement des données implique des changements constants d'échelle pour passer des éléments ponctuels aux surfaces, ce que les systèmes d'information géographique ne gèrent pas parfaitement. La gestion des risques entraîne de fortes contraintes d'urbanisme, la prise en compte de la vulnérabilité permet de mieux comprendre et gérer les contraintes spatiales qu'impliquent les risques naturels. aléa, analyse spatiale, risques naturels, S.I.G., vulnérabilité

  16. Blast sampling for structural and functional analyses. (United States)

    Friedrich, Anne; Ripp, Raymond; Garnier, Nicolas; Bettler, Emmanuel; Deléage, Gilbert; Poch, Olivier; Moulinier, Luc


    The post-genomic era is characterised by a torrent of biological information flooding the public databases. As a direct consequence, similarity searches starting with a single query sequence frequently lead to the identification of hundreds, or even thousands of potential homologues. The huge volume of data renders the subsequent structural, functional and evolutionary analyses very difficult. It is therefore essential to develop new strategies for efficient sampling of this large sequence space, in order to reduce the number of sequences to be processed. At the same time, it is important to retain the most pertinent sequences for structural and functional studies. An exhaustive analysis on a large scale test set (284 protein families) was performed to compare the efficiency of four different sampling methods aimed at selecting the most pertinent sequences. These four methods sample the proteins detected by BlastP searches and can be divided into two categories: two customisable methods where the user defines either the maximal number or the percentage of sequences to be selected; two automatic methods in which the number of sequences selected is determined by the program. We focused our analysis on the potential information content of the sampled sets of sequences using multiple alignment of complete sequences as the main validation tool. The study considered two criteria: the total number of sequences in BlastP and their associated E-values. The subsequent analyses investigated the influence of the sampling methods on the E-value distributions, the sequence coverage, the final multiple alignment quality and the active site characterisation at various residue conservation thresholds as a function of these criteria. The comparative analysis of the four sampling methods allows us to propose a suitable sampling strategy that significantly reduces the number of homologous sequences required for alignment, while at the same time maintaining the relevant information

  17. Blast sampling for structural and functional analyses

    Directory of Open Access Journals (Sweden)

    Friedrich Anne


    Full Text Available Abstract Background The post-genomic era is characterised by a torrent of biological information flooding the public databases. As a direct consequence, similarity searches starting with a single query sequence frequently lead to the identification of hundreds, or even thousands of potential homologues. The huge volume of data renders the subsequent structural, functional and evolutionary analyses very difficult. It is therefore essential to develop new strategies for efficient sampling of this large sequence space, in order to reduce the number of sequences to be processed. At the same time, it is important to retain the most pertinent sequences for structural and functional studies. Results An exhaustive analysis on a large scale test set (284 protein families was performed to compare the efficiency of four different sampling methods aimed at selecting the most pertinent sequences. These four methods sample the proteins detected by BlastP searches and can be divided into two categories: two customisable methods where the user defines either the maximal number or the percentage of sequences to be selected; two automatic methods in which the number of sequences selected is determined by the program. We focused our analysis on the potential information content of the sampled sets of sequences using multiple alignment of complete sequences as the main validation tool. The study considered two criteria: the total number of sequences in BlastP and their associated E-values. The subsequent analyses investigated the influence of the sampling methods on the E-value distributions, the sequence coverage, the final multiple alignment quality and the active site characterisation at various residue conservation thresholds as a function of these criteria. Conclusion The comparative analysis of the four sampling methods allows us to propose a suitable sampling strategy that significantly reduces the number of homologous sequences required for alignment, while

  18. GPU based framework for geospatial analyses (United States)

    Cosmin Sandric, Ionut; Ionita, Cristian; Dardala, Marian; Furtuna, Titus


    Parallel processing on multiple CPU cores is already used at large scale in geocomputing, but parallel processing on graphics cards is just at the beginning. Being able to use an simple laptop with a dedicated graphics card for advanced and very fast geocomputation is an advantage that each scientist wants to have. The necessity to have high speed computation in geosciences has increased in the last 10 years, mostly due to the increase in the available datasets. These datasets are becoming more and more detailed and hence they require more space to store and more time to process. Distributed computation on multicore CPU's and GPU's plays an important role by processing one by one small parts from these big datasets. These way of computations allows to speed up the process, because instead of using just one process for each dataset, the user can use all the cores from a CPU or up to hundreds of cores from GPU The framework provide to the end user a standalone tools for morphometry analyses at multiscale level. An important part of the framework is dedicated to uncertainty propagation in geospatial analyses. The uncertainty may come from the data collection or may be induced by the model or may have an infinite sources. These uncertainties plays important roles when a spatial delineation of the phenomena is modelled. Uncertainty propagation is implemented inside the GPU framework using Monte Carlo simulations. The GPU framework with the standalone tools proved to be a reliable tool for modelling complex natural phenomena The framework is based on NVidia Cuda technology and is written in C++ programming language. The code source will be available on github at Acknowledgement: GPU framework for geospatial analysis, Young Researchers Grant (ICUB-University of Bucharest) 2016, director Ionut Sandric

  19. Database-Driven Analyses of Astronomical Spectra (United States)

    Cami, Jan


    Spectroscopy is one of the most powerful tools to study the physical properties and chemical composition of very diverse astrophysical environments. In principle, each nuclide has a unique set of spectral features; thus, establishing the presence of a specific material at astronomical distances requires no more than finding a laboratory spectrum of the right material that perfectly matches the astronomical observations. Once the presence of a substance is established, a careful analysis of the observational characteristics (wavelengths or frequencies, intensities, and line profiles) allows one to determine many physical parameters of the environment in which the substance resides, such as temperature, density, velocity, and so on. Because of this great diagnostic potential, ground-based and space-borne astronomical observatories often include instruments to carry out spectroscopic analyses of various celestial objects and events. Of particular interest is molecular spectroscopy at infrared wavelengths. From the spectroscopic point of view, molecules differ from atoms in their ability to vibrate and rotate, and quantum physics inevitably causes those motions to be quantized. The energies required to excite vibrations or rotations are such that vibrational transitions generally occur at infrared wavelengths, whereas pure rotational transitions typically occur at sub-mm wavelengths. Molecular vibration and rotation are coupled though, and thus at infrared wavelengths, one commonly observes a multitude of ro-vibrational transitions (see Figure 13.1). At lower spectral resolution, all transitions blend into one broad ro-vibrational molecular band. The isotope. Molecular spectroscopy thus allows us to see a difference of one neutron in an atomic nucleus that is located at astronomical distances! Since the detection of the first interstellar molecules (the CH [21] and CN [14] radicals), more than 150 species have been detected in space, ranging in size from diatomic

  20. Efficient ALL vs. ALL collision risk analyses (United States)

    Escobar, D.; Paskowitz, M.; Agueda, A.; Garcia, G.; Molina, M.


    In recent years, the space debris has gained a lot of attention due to the increasing amount of uncontrolled man-made objects orbiting the Earth. This population poses a significant and constantly growing thread to operational satellites. In order to face this thread in an independent manner, ESA has launched an initiative for the development of a European SSA System where GMV is participating via several activities. Apart from those activities financed by ESA, GMV has developed closeap, a tool for efficient conjunction assessment and collision probability prediction. ESÁs NAPEOS has been selected as computational engine and numerical propagator to be used in the tool, which can be considered as an add-on to the standard NAPEOS package. closeap makes use of the same orbit computation, conjunction assessment and collision risk algorithms implemented in CRASS, but at the same time both systems are completely independent. Moreover, the implementation in closeap has been validated against CRASS with excellent results. This paper describes the performance improvements implemented in closeap at algorithm level to ensure that the most time demanding scenarios (e.g., all catalogued objects are analysed against each other - all vs. all scenarios -) can be analysed in a reasonable amount of time with commercial-off-the-shelf hardware. However, the amount of space debris increases steadily due to the human activities. Thus, the number of objects involved in a full collision assessment is expected to increase notably and, consequently, the computational cost, which scales as the square of the number of objects, will increase as well. Additionally, orbit propagation algorithms that are computationally expensive might be needed to predict more accurately the trajectories of the space debris. In order to cope with such computational needs, the next natural step in the development of collision assessment tools is the use of parallelization techniques. In this paper we investigate

  1. Analysing Scenarios of Cell Population System Development

    Directory of Open Access Journals (Sweden)

    M. S. Vinogradova


    Full Text Available The article considers an isolated population system consisting of two types of human stem cells, namely normal cells and cells with chromosomal abnormalities (abnormal ones. The system develops in the laboratory (in vitro. The article analyses possible scenarios of the population system development, which are implemented for different values of its parameters. An investigated model of the cell population system takes into account the limited resources. It is represented as a system of two nonlinear differential equations with continuous right-hand part. The model is considered with non-negative values of the variables; the domain is divided into four sets. The model feature is that in each set the right part of the system of differential equations has a different form.The article analyses a quality of the rest points of the system in each of four sets. The analytical conditions for determination of the number of rest points and the quality of rest points, with, at least, one zero coordinate, are obtained.It is shown that the population system under study cannot have more than two points of rest, both coordinates of which are positive (non-zero. It is difficult to determine quality of such rest points depending on the model parameters due to the complexity of the expressions, which define the systems of the first approximation, recorded in a neighborhood of these points of rest. Numerical research results of the stability of these points of rest are obtained, and phase portraits with the specified specific values of the system parameters are demonstrated. The main scenarios for the cell population development are adduced. Analysis of mathematical model shows that a cell population system may remain the system consisting of populations of normal and abnormal cells; it can degenerate into a population of abnormal cells or perish. The scenario, in which there is only the population of normal cells, is not implemented. The numerical simulation

  2. Nonindependence and sensitivity analyses in ecological and evolutionary meta-analyses. (United States)

    Noble, Daniel W A; Lagisz, Malgorzata; O'dea, Rose E; Nakagawa, Shinichi


    Meta-analysis is an important tool for synthesizing research on a variety of topics in ecology and evolution, including molecular ecology, but can be susceptible to nonindependence. Nonindependence can affect two major interrelated components of a meta-analysis: (i) the calculation of effect size statistics and (ii) the estimation of overall meta-analytic estimates and their uncertainty. While some solutions to nonindependence exist at the statistical analysis stages, there is little advice on what to do when complex analyses are not possible, or when studies with nonindependent experimental designs exist in the data. Here we argue that exploring the effects of procedural decisions in a meta-analysis (e.g. inclusion of different quality data, choice of effect size) and statistical assumptions (e.g. assuming no phylogenetic covariance) using sensitivity analyses are extremely important in assessing the impact of nonindependence. Sensitivity analyses can provide greater confidence in results and highlight important limitations of empirical work (e.g. impact of study design on overall effects). Despite their importance, sensitivity analyses are seldom applied to problems of nonindependence. To encourage better practice for dealing with nonindependence in meta-analytic studies, we present accessible examples demonstrating the impact that ignoring nonindependence can have on meta-analytic estimates. We also provide pragmatic solutions for dealing with nonindependent study designs, and for analysing dependent effect sizes. Additionally, we offer reporting guidelines that will facilitate disclosure of the sources of nonindependence in meta-analyses, leading to greater transparency and more robust conclusions. © 2017 John Wiley & Sons Ltd.

  3. Reproducibility of neuroimaging analyses across operating systems. (United States)

    Glatard, Tristan; Lewis, Lindsay B; Ferreira da Silva, Rafael; Adalat, Reza; Beck, Natacha; Lepage, Claude; Rioux, Pierre; Rousseau, Marc-Etienne; Sherif, Tarek; Deelman, Ewa; Khalili-Mahani, Najmeh; Evans, Alan C


    Neuroimaging pipelines are known to generate different results depending on the computing platform where they are compiled and executed. We quantify these differences for brain tissue classification, fMRI analysis, and cortical thickness (CT) extraction, using three of the main neuroimaging packages (FSL, Freesurfer and CIVET) and different versions of GNU/Linux. We also identify some causes of these differences using library and system call interception. We find that these packages use mathematical functions based on single-precision floating-point arithmetic whose implementations in operating systems continue to evolve. While these differences have little or no impact on simple analysis pipelines such as brain extraction and cortical tissue classification, their accumulation creates important differences in longer pipelines such as subcortical tissue classification, fMRI analysis, and cortical thickness extraction. With FSL, most Dice coefficients between subcortical classifications obtained on different operating systems remain above 0.9, but values as low as 0.59 are observed. Independent component analyses (ICA) of fMRI data differ between operating systems in one third of the tested subjects, due to differences in motion correction. With Freesurfer and CIVET, in some brain regions we find an effect of build or operating system on cortical thickness. A first step to correct these reproducibility issues would be to use more precise representations of floating-point numbers in the critical sections of the pipelines. The numerical stability of pipelines should also be reviewed.

  4. Social Media Analyses for Social Measurement (United States)

    Schober, Michael F.; Pasek, Josh; Guggenheim, Lauren; Lampe, Cliff; Conrad, Frederick G.


    Demonstrations that analyses of social media content can align with measurement from sample surveys have raised the question of whether survey research can be supplemented or even replaced with less costly and burdensome data mining of already-existing or “found” social media content. But just how trustworthy such measurement can be—say, to replace official statistics—is unknown. Survey researchers and data scientists approach key questions from starting assumptions and analytic traditions that differ on, for example, the need for representative samples drawn from frames that fully cover the population. New conversations between these scholarly communities are needed to understand the potential points of alignment and non-alignment. Across these approaches, there are major differences in (a) how participants (survey respondents and social media posters) understand the activity they are engaged in; (b) the nature of the data produced by survey responses and social media posts, and the inferences that are legitimate given the data; and (c) practical and ethical considerations surrounding the use of the data. Estimates are likely to align to differing degrees depending on the research topic and the populations under consideration, the particular features of the surveys and social media sites involved, and the analytic techniques for extracting opinions and experiences from social media. Traditional population coverage may not be required for social media content to effectively predict social phenomena to the extent that social media content distills or summarizes broader conversations that are also measured by surveys. PMID:27257310

  5. Applications of Parallel Processing in Configuration Analyses (United States)

    Sundaram, Ppchuraman; Hager, James O.; Biedron, Robert T.


    The paper presents the recent progress made towards developing an efficient and user-friendly parallel environment for routine analysis of large CFD problems. The coarse-grain parallel version of the CFL3D Euler/Navier-Stokes analysis code, CFL3Dhp, has been ported onto most available parallel platforms. The CFL3Dhp solution accuracy on these parallel platforms has been verified with the CFL3D sequential analyses. User-friendly pre- and post-processing tools that enable a seamless transfer from sequential to parallel processing have been written. Static load balancing tool for CFL3Dhp analysis has also been implemented for achieving good parallel efficiency. For large problems, load balancing efficiency as high as 95% can be achieved even when large number of processors are used. Linear scalability of the CFL3Dhp code with increasing number of processors has also been shown using a large installed transonic nozzle boattail analysis. To highlight the fast turn-around time of parallel processing, the TCA full configuration in sideslip Navier-Stokes drag polar at supersonic cruise has been obtained in a day. CFL3Dhp is currently being used as a production analysis tool.

  6. Analyse de plomb dans les peintures (United States)

    Broll, N.; Frezouls, J.-M.


    The analysis of lead in paints was previously used for the characterisation of pigments. In this way, the analysis is able to specify the century of the painting of a work of art. Recently this technique was also used to determine the toxicity of lead paints in building. This paper compared the result of several X-ray fluorescence spectrometer, either wave length/energy dispersion laboratory apparatus or X-ray microtube/radioactive source portable equipment's. L'analyse du plomb dans les peintures a jusqu'à présent été appliquée essentiellement pour caractériser les pigments lors de leur fabrication et pour identifier des rouvres d'art. Récemment cette technique est également utilisée pour déterminer la toxicité des peintures au plomb dans les bâtiments. Nous avons comparé les performances de plusieurs spectromètres de fluorescence X, soit de laboratoire à dispersion en longueur d'onde ou à dispersion en énergie (avec tube à rayonsX), soit portable avec source radioactive ou tube à rayons X.

  7. Network-Based and Binless Frequency Analyses.

    Directory of Open Access Journals (Sweden)

    Sybil Derrible

    Full Text Available We introduce and develop a new network-based and binless methodology to perform frequency analyses and produce histograms. In contrast with traditional frequency analysis techniques that use fixed intervals to bin values, we place a range ±ζ around each individual value in a data set and count the number of values within that range, which allows us to compare every single value of a data set with one another. In essence, the methodology is identical to the construction of a network, where two values are connected if they lie within a given a range (±ζ. The value with the highest degree (i.e., most connections is therefore assimilated to the mode of the distribution. To select an optimal range, we look at the stability of the proportion of nodes in the largest cluster. The methodology is validated by sampling 12 typical distributions, and it is applied to a number of real-world data sets with both spatial and temporal components. The methodology can be applied to any data set and provides a robust means to uncover meaningful patterns and trends. A free python script and a tutorial are also made available to facilitate the application of the method.

  8. Analysing the thermal characteristics of LAMP joining

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    Tamás Markovits


    Full Text Available The increasing utilisation of different material groups (plastic, metal, ceramics in our advanced construction provides many benefits, but the fastening process is a challenge. LAMP (Laser assisted metal plastic joining is a new technique in fastening technology. It means an alternative process from the existing techniques like using adhesives, screwing, riveting etc. The authors have been dealing with this technology for years. In this research work some important thermal phenomena were analysed in order to understand the process of joining more thoroughly. The temperature of the steel partner was measured in case of different laser settings and experimental situations with two measuring techniques: thermocouple and infrared camera. The results show the effect of different influencing factors during heating and the applicability of different measuring methods. The received temperature values can be compared to the characteristic temperature of PMMA polymer (decomposition temperature in order to determine the root cause of bubble forming in the polymer material. From the result the differences between the different applied laser pulse mode for the heating was also determined and it was possible to measure the heating rate during the laser process.

  9. Design and Analyses of Electromagnetic Microgenerator

    Directory of Open Access Journals (Sweden)

    Nibras Awaja


    Full Text Available This paper presents a new design of an electromagnetic microgenerator. The desgin aspects of the microgenerator comprises spring, coil and rear earth magnet have been addressed. The theoretical analyses of the electromagnetic microgenerator are established. Firstly, steady state analysis has been undertaken to determine the practical performance of the device. It is found that the generator will produce more power in applications with high frequency of vibration. Secondly, electromagnetic analysis is established to calculate the generated power on the load. It is found that the output power can be maximized when the impedance of the coil is less than the load impedance and when using a magnet with high magnetic field. Mechanical parameters like (damping factor, resonant frequency, proof mass and maximum displacement and magnetic parameters like (load resistance, coil resistance, and the magnetic field have been adjusted to optimize the output power through a comprehensive theoretical study. A range of microgenerator output power values are obtained in accordance with the consideration of the design parameters.

  10. Evaluation of the Olympus AU-510 analyser. (United States)

    Farré, C; Velasco, J; Ramón, F


    The selective multitest Olympus AU-510 analyser was evaluated according to the recommendations of the Comision de Instrumentacion de la Sociedad Española de Quimica Clinica and the European Committee for Clinical Laboratory Standards. The evaluation was carried out in two stages: an examination of the analytical units and then an evaluation in routine work conditions. The operational characteristics of the system were also studied.THE FIRST STAGE INCLUDED A PHOTOMETRIC STUDY: dependent on the absorbance, the inaccuracy varies between +0.5% to -0.6% at 405 nm and from -5.6% to 10.6% at 340 nm; the imprecision ranges between -0.22% and 0.56% at 405 nm and between 0.09% and 2.74% at 340 nm. Linearity was acceptable, apart from a very low absorbance for NADH at 340 nm; and the imprecision of the serum sample pipetter was satisfactory.TWELVE SERUM ANALYTES WERE STUDIED UNDER ROUTINE CONDITIONS: glucose, urea urate, cholesterol, triglycerides, total bilirubin, creatinine, phosphate, iron, aspartate aminotransferase, alanine aminotransferase and gamma-glutamyl transferase.The within-run imprecision (CV%) ranged from 0.67% for phosphate to 2.89% for iron and the between-run imprecision from 0.97% for total bilirubin to 7.06% for iron. There was no carryover in a study of the serum sample pipetter. Carry-over studies with the reagent and sample pipetters shows some cross contamination in the iron assay.


    Energy Technology Data Exchange (ETDEWEB)

    S. Tsai


    Radiological consequence analyses are performed for potential releases from normal operations in surface and subsurface facilities and from Category 1 and Category 2 event sequences during the preclosure period. Surface releases from normal repository operations are primarily from radionuclides released from opening a transportation cask during dry transfer operations of spent nuclear fuel (SNF) in Dry Transfer Facility 1 (DTF 1), Dry Transfer Facility 2 (DTF 2), the Canister Handling facility (CHF), or the Fuel Handling Facility (FHF). Subsurface releases from normal repository operations are from resuspension of waste package surface contamination and neutron activation of ventilated air and silica dust from host rock in the emplacement drifts. The purpose of this calculation is to demonstrate that the preclosure performance objectives, specified in 10 CFR 63.111(a) and 10 CFR 63.111(b), have been met for the proposed design and operations in the geologic repository operations area. Preclosure performance objectives are discussed in Section 6.2.3 and are summarized in Tables 1 and 2.

  12. Reliability Analyses of Groundwater Pollutant Transport

    Energy Technology Data Exchange (ETDEWEB)

    Dimakis, Panagiotis


    This thesis develops a probabilistic finite element model for the analysis of groundwater pollution problems. Two computer codes were developed, (1) one using finite element technique to solve the two-dimensional steady state equations of groundwater flow and pollution transport, and (2) a first order reliability method code that can do a probabilistic analysis of any given analytical or numerical equation. The two codes were connected into one model, PAGAP (Probability Analysis of Groundwater And Pollution). PAGAP can be used to obtain (1) the probability that the concentration at a given point at a given time will exceed a specified value, (2) the probability that the maximum concentration at a given point will exceed a specified value and (3) the probability that the residence time at a given point will exceed a specified period. PAGAP could be used as a tool for assessment purposes and risk analyses, for instance the assessment of the efficiency of a proposed remediation technique or to study the effects of parameter distribution for a given problem (sensitivity study). The model has been applied to study the greatest self sustained, precipitation controlled aquifer in North Europe, which underlies Oslo`s new major airport. 92 refs., 187 figs., 26 tabs.

  13. Soil deflation analyses from wind erosion events

    Directory of Open Access Journals (Sweden)

    Lenka Lackóová


    Full Text Available There are various methods to assess soil erodibility for wind erosion. This paper focuses on aggregate analysis by a laser particle sizer ANALYSETTE 22 (FRITSCH GmbH, made to determine the size distribution of soil particles detached by wind (deflated particles. Ten soil samples, trapped along the same length of the erosion surface (150–155 m but at different wind speeds, were analysed. The soil was sampled from a flat, smooth area without vegetation cover or soil crust, not affected by the impact of windbreaks or other barriers, from a depth of maximum 2.5 cm. Prior to analysis the samples were prepared according to the relevant specifications. An experiment was also conducted using a device that enables characterisation of the vertical movement of the deflated material. The trapped samples showed no differences in particle size and the proportions of size fractions at different hourly average wind speeds. It was observed that most of particles travelling in saltation mode (size 50–500 μm – 58–70% – moved vertically up to 26 cm above the soil surface. At greater heights, particles moving in suspension mode (floating in the air; size < 100 μm accounted for up to 90% of the samples. This result suggests that the boundary between the two modes of the vertical movement of deflated soil particles lies at about 25 cm above the soil surface.


    Directory of Open Access Journals (Sweden)



    Full Text Available This paper provides a case study on application of wavelet techniques to analyze wind speed and energy (renewable and environmental friendly energy. Solar and wind are main sources of energy that allows farmers to have the potential for transferring kinetic energy captured by the wind mill for pumping water, drying crops, heating systems of green houses, rural electrification's or cooking. Larger wind turbines (over 1 MW can pump enough water for small-scale irrigation. This study tried to initiate data gathering process for wavelet analyses, different scale effects and their role on wind speed and direction variations. The wind data gathering system is mounted at latitudes: 37° 50" N; longitude 30° 33" E and height: 1200 m above mean sea level at a hill near Süleyman Demirel University campus. 10 minutes average values of two levels wind speed and direction (10m and 30m above ground level have been recorded by a data logger between July 2001 and February 2002. Wind speed values changed between the range of 0 m/s and 54 m/s. Annual mean speed value is 4.5 m/s at 10 m ground level. Prevalent wind

  15. Kinematic gait analyses in healthy Golden Retrievers

    Directory of Open Access Journals (Sweden)

    Gabriela C.A. Silva


    Full Text Available Kinematic analysis relates to the relative movement between rigid bodies and finds application in gait analysis and other body movements, interpretation of their data when there is change, determines the choice of treatment to be instituted. The objective of this study was to standardize the march of Dog Golden Retriever Healthy to assist in the diagnosis and treatment of musculoskeletal disorders. We used a kinematic analysis system to analyse the gait of seven dogs Golden Retriever, female, aged between 2 and 4 years, weighing 21.5 to 28 kg, clinically normal. Flexion and extension were described for shoulder, elbow, carpal, hip, femorotibialis and tarsal joints. The gait was characterized lateral and had accepted hypothesis of normality for all variables, except for the stance of hip and elbow, considering a confidence level of 95%, significance level α = 0.05. Variations have been attributed to displacement of the stripes during movement and the duplicated number of reviews. The kinematic analysis proved to be a consistent method of evaluation of the movement during canine gait and the data can be used in the diagnosis and evaluation of canine gait in comparison to other studies and treatment of dogs with musculoskeletal disorders.

  16. Fast and accurate methods for phylogenomic analyses

    Directory of Open Access Journals (Sweden)

    Warnow Tandy


    Full Text Available Abstract Background Species phylogenies are not estimated directly, but rather through phylogenetic analyses of different gene datasets. However, true gene trees can differ from the true species tree (and hence from one another due to biological processes such as horizontal gene transfer, incomplete lineage sorting, and gene duplication and loss, so that no single gene tree is a reliable estimate of the species tree. Several methods have been developed to estimate species trees from estimated gene trees, differing according to the specific algorithmic technique used and the biological model used to explain differences between species and gene trees. Relatively little is known about the relative performance of these methods. Results We report on a study evaluating several different methods for estimating species trees from sequence datasets, simulating sequence evolution under a complex model including indels (insertions and deletions, substitutions, and incomplete lineage sorting. The most important finding of our study is that some fast and simple methods are nearly as accurate as the most accurate methods, which employ sophisticated statistical methods and are computationally quite intensive. We also observe that methods that explicitly consider errors in the estimated gene trees produce more accurate trees than methods that assume the estimated gene trees are correct. Conclusions Our study shows that highly accurate estimations of species trees are achievable, even when gene trees differ from each other and from the species tree, and that these estimations can be obtained using fairly simple and computationally tractable methods.

  17. Phylogenomic Analyses Support Traditional Relationships within Cnidaria.

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    Felipe Zapata

    Full Text Available Cnidaria, the sister group to Bilateria, is a highly diverse group of animals in terms of morphology, lifecycles, ecology, and development. How this diversity originated and evolved is not well understood because phylogenetic relationships among major cnidarian lineages are unclear, and recent studies present contrasting phylogenetic hypotheses. Here, we use transcriptome data from 15 newly-sequenced species in combination with 26 publicly available genomes and transcriptomes to assess phylogenetic relationships among major cnidarian lineages. Phylogenetic analyses using different partition schemes and models of molecular evolution, as well as topology tests for alternative phylogenetic relationships, support the monophyly of Medusozoa, Anthozoa, Octocorallia, Hydrozoa, and a clade consisting of Staurozoa, Cubozoa, and Scyphozoa. Support for the monophyly of Hexacorallia is weak due to the equivocal position of Ceriantharia. Taken together, these results further resolve deep cnidarian relationships, largely support traditional phylogenetic views on relationships, and provide a historical framework for studying the evolutionary processes involved in one of the most ancient animal radiations.

  18. Comparative analyses of bidirectional promoters in vertebrates

    Directory of Open Access Journals (Sweden)

    Taylor James


    Full Text Available Abstract Background Orthologous genes with deep phylogenetic histories are likely to retain similar regulatory features. In this report we utilize orthology assignments for pairs of genes co-regulated by bidirectional promoters to map the ancestral history of the promoter regions. Results Our mapping of bidirectional promoters from humans to fish shows that many such promoters emerged after the divergence of chickens and fish. Furthermore, annotations of promoters in deep phylogenies enable detection of missing data or assembly problems present in higher vertebrates. The functional importance of bidirectional promoters is indicated by selective pressure to maintain the arrangement of genes regulated by the promoter over long evolutionary time spans. Characteristics unique to bidirectional promoters are further elucidated using a technique for unsupervised classification, known as ESPERR. Conclusion Results of these analyses will aid in our understanding of the evolution of bidirectional promoters, including whether the regulation of two genes evolved as a consequence of their proximity or if function dictated their co-regulation.

  19. Social Media Analyses for Social Measurement. (United States)

    Schober, Michael F; Pasek, Josh; Guggenheim, Lauren; Lampe, Cliff; Conrad, Frederick G


    Demonstrations that analyses of social media content can align with measurement from sample surveys have raised the question of whether survey research can be supplemented or even replaced with less costly and burdensome data mining of already-existing or "found" social media content. But just how trustworthy such measurement can be-say, to replace official statistics-is unknown. Survey researchers and data scientists approach key questions from starting assumptions and analytic traditions that differ on, for example, the need for representative samples drawn from frames that fully cover the population. New conversations between these scholarly communities are needed to understand the potential points of alignment and non-alignment. Across these approaches, there are major differences in (a) how participants (survey respondents and social media posters) understand the activity they are engaged in; (b) the nature of the data produced by survey responses and social media posts, and the inferences that are legitimate given the data; and (c) practical and ethical considerations surrounding the use of the data. Estimates are likely to align to differing degrees depending on the research topic and the populations under consideration, the particular features of the surveys and social media sites involved, and the analytic techniques for extracting opinions and experiences from social media. Traditional population coverage may not be required for social media content to effectively predict social phenomena to the extent that social media content distills or summarizes broader conversations that are also measured by surveys.

  20. Genomic analyses of modern dog breeds. (United States)

    Parker, Heidi G


    A rose may be a rose by any other name, but when you call a dog a poodle it becomes a very different animal than if you call it a bulldog. Both the poodle and the bulldog are examples of dog breeds of which there are >400 recognized worldwide. Breed creation has played a significant role in shaping the modern dog from the length of his leg to the cadence of his bark. The selection and line-breeding required to maintain a breed has also reshaped the genome of the dog, resulting in a unique genetic pattern for each breed. The breed-based population structure combined with extensive morphologic variation and shared human environments have made the dog a popular model for mapping both simple and complex traits and diseases. In order to obtain the most benefit from the dog as a genetic system, it is necessary to understand the effect structured breeding has had on the genome of the species. That is best achieved by looking at genomic analyses of the breeds, their histories, and their relationships to each other.

  1. Consumption patterns and perception analyses of hangwa. (United States)

    Kwock, Chang Geun; Lee, Min A; Park, So Hyun


    Hangwa is a traditional food, corresponding to the current consumption trend, in need of marketing strategies to extend its consumption. Therefore, the purpose of this study was to analyze consumers' consumption patterns and perception of Hangwa to increase consumption in the market. A questionnaire was sent to 250 consumers by e-mail from Oct 8∼23, 2009 and the data from 231 persons were analyzed in this study. Statistical, descriptive, paired samples t-test, and importance-performance analyses were conducted using SPSS WIN 17.0. According to the results, Hangwa was purchased mainly 'for present' (39.8%) and the main reasons for buying it were 'traditional image' (33.3%) and 'taste' (22.5%). When importance and performance of attributes considered in purchasing Hangwa were evaluated, performance was assessed to be lower than importance for all attributes. The attributes in the first quadrant with a high importance and a high performance were 'a sanitary process', 'a rigorous quality mark' and 'taste', which were related with quality of the products. In addition, those with a high importance but a low performance were 'popularization through advertisement', 'promotion through mass media', 'conversion of thought on traditional foods', 'a reasonable price' and 'a wide range of price'. In conclusion, Hangwa manufacturers need to diversify products and extend the expiration date based on technologies to promote its consumption. In terms of price, Hangwa should become more available by lowering the price barrier for consumers who are sensitive to price.

  2. Conveyor: a workflow engine for bioinformatic analyses. (United States)

    Linke, Burkhard; Giegerich, Robert; Goesmann, Alexander


    The rapidly increasing amounts of data available from new high-throughput methods have made data processing without automated pipelines infeasible. As was pointed out in several publications, integration of data and analytic resources into workflow systems provides a solution to this problem, simplifying the task of data analysis. Various applications for defining and running workflows in the field of bioinformatics have been proposed and published, e.g. Galaxy, Mobyle, Taverna, Pegasus or Kepler. One of the main aims of such workflow systems is to enable scientists to focus on analysing their datasets instead of taking care for data management, job management or monitoring the execution of computational tasks. The currently available workflow systems achieve this goal, but fundamentally differ in their way of executing workflows. We have developed the Conveyor software library, a multitiered generic workflow engine for composition, execution and monitoring of complex workflows. It features an open, extensible system architecture and concurrent program execution to exploit resources available on modern multicore CPU hardware. It offers the ability to build complex workflows with branches, loops and other control structures. Two example use cases illustrate the application of the versatile Conveyor engine to common bioinformatics problems. The Conveyor application including client and server are available at


    Directory of Open Access Journals (Sweden)

    Sabina Jordan


    Full Text Available The article presents the results of an analytical study of the functioning of glazing at two different yet interacting levels: at the level of the building as a whole, and at that of glazing as a building element. At the building level, analyses were performed on a sample of high-rise business buildings in Slovenia, where the glazing"s share of the building envelope was calculated, and estimates of the proportion of shade provided by external blinds were made. It is shown that, especially in the case of modern buildings with large proportions of glazing and buildings with no shading devices, careful glazing design is needed, together with a sound knowledge of energy performance. In the second part of the article, the energy balance values relating to selected types of glazing are presented, including solar control glazing. The paper demonstrates the need for a holistic energy approach to glazing problems, as well as how different types of glazing can be methodically compared, thus improving the design of sustainability-orientated buildings.

  4. Integrated Field Analyses of Thermal Springs (United States)

    Shervais, K.; Young, B.; Ponce-Zepeda, M. M.; Rosove, S.


    A group of undergraduate researchers through the SURE internship offered by the Southern California Earthquake Center (SCEC) have examined thermal springs in southern Idaho, northern Utah as well as mud volcanoes in the Salton Sea, California. We used an integrated approach to estimate the setting and maximum temperature, including water chemistry, Ipad-based image and data-base management, microbiology, and gas analyses with a modified Giggenbach sampler.All springs were characterized using GISRoam (tmCogent3D). We are performing geothermometry calculations as well as comparisons with temperature gradient data on the results while also analyzing biological samples. Analyses include water temperature, pH, electrical conductivity, and TDS measured in the field. Each sample is sealed and chilled and delivered to a water lab within 12 hours.Temperatures are continuously monitored with the use of Solinst Levelogger Juniors. Through partnership with a local community college geology club, we receive results on a monthly basis and are able to process initial data earlier in order to evaluate data over a longer time span. The springs and mudpots contained microbial organisms which were analyzed using methods of single colony isolation, polymerase chain reaction, and DNA sequencing showing the impact of the organisms on the springs or vice versa. Soon we we will collect gas samples at sites that show signs of gas. This will be taken using a hybrid of the Giggenbach method and our own methods. Drawing gas samples has proven a challenge, however we devised a method to draw out gas samples utilizing the Giggenbach flask, transferring samples to glass blood sample tubes, replacing NaOH in the Giggenbach flask, and evacuating it in the field for multiple samples using a vacuum pump. We also use a floating platform devised to carry and lower a levelogger, to using an in-line fuel filter from a tractor in order to keep mud from contaminating the equipment.The use of raster

  5. Finite Element analyses of soil bioengineered slopes (United States)

    Tamagnini, Roberto; Switala, Barbara Maria; Sudan Acharya, Madhu; Wu, Wei; Graf, Frank; Auer, Michael; te Kamp, Lothar


    Soil Bioengineering methods are not only effective from an economical point of view, but they are also interesting as fully ecological solutions. The presented project is aimed to define a numerical model which includes the impact of vegetation on slope stability, considering both mechanical and hydrological effects. In this project, a constitutive model has been developed that accounts for the multi-phase nature of the soil, namely the partly saturated condition and it also includes the effects of a biological component. The constitutive equation is implemented in the Finite Element (FE) software Comes-Geo with an implicit integration scheme that accounts for the collapse of the soils structure due to wetting. The mathematical formulation of the constitutive equations is introduced by means of thermodynamics and it simulates the growth of the biological system during the time. The numerical code is then applied in the analysis of an ideal rainfall induced landslide. The slope is analyzed for vegetated and non-vegetated conditions. The final results allow to quantitatively assessing the impact of vegetation on slope stability. This allows drawing conclusions and choosing whenever it is worthful to use soil bioengineering methods in slope stabilization instead of traditional approaches. The application of the FE methods show some advantages with respect to the commonly used limit equilibrium analyses, because it can account for the real coupled strain-diffusion nature of the problem. The mechanical strength of roots is in fact influenced by the stress evolution into the slope. Moreover, FE method does not need a pre-definition of any failure surface. FE method can also be used in monitoring the progressive failure of the soil bio-engineered system as it calculates the amount of displacements and strains of the model slope. The preliminary study results show that the formulated equations can be useful for analysis and evaluation of different soil bio

  6. Assessing the reproducibility of discriminant function analyses

    Directory of Open Access Journals (Sweden)

    Rose L. Andrew


    Full Text Available Data are the foundation of empirical research, yet all too often the datasets underlying published papers are unavailable, incorrect, or poorly curated. This is a serious issue, because future researchers are then unable to validate published results or reuse data to explore new ideas and hypotheses. Even if data files are securely stored and accessible, they must also be accompanied by accurate labels and identifiers. To assess how often problems with metadata or data curation affect the reproducibility of published results, we attempted to reproduce Discriminant Function Analyses (DFAs from the field of organismal biology. DFA is a commonly used statistical analysis that has changed little since its inception almost eight decades ago, and therefore provides an opportunity to test reproducibility among datasets of varying ages. Out of 100 papers we initially surveyed, fourteen were excluded because they did not present the common types of quantitative result from their DFA or gave insufficient details of their DFA. Of the remaining 86 datasets, there were 15 cases for which we were unable to confidently relate the dataset we received to the one used in the published analysis. The reasons ranged from incomprehensible or absent variable labels, the DFA being performed on an unspecified subset of the data, or the dataset we received being incomplete. We focused on reproducing three common summary statistics from DFAs: the percent variance explained, the percentage correctly assigned and the largest discriminant function coefficient. The reproducibility of the first two was fairly high (20 of 26, and 44 of 60 datasets, respectively, whereas our success rate with the discriminant function coefficients was lower (15 of 26 datasets. When considering all three summary statistics, we were able to completely reproduce 46 (65% of 71 datasets. While our results show that a majority of studies are reproducible, they highlight the fact that many studies

  7. Himalayan Ice Core Analyses With Snow Algae (United States)

    Yoshimura, Y.; Kohshima, S.; Takeuchi, N.; Seko, K.; Fujita, K.


    Snow algae in a shallow ice core (7 m in length) from the Yala Glacier, Langtang region of Nepal, were examined for potential use in ice core analyses. Ice core samples taken at 5350 m a.s.l. in 1994, contained more than 7 species of snow algae. In a vertical profile of the algal biomass, 11 distinct algal layers were observed. Seasonal observation in 1996 at the coring site indicated most algal growth to occur from late spring to late summer. Pit observation in 1991, 1992 and 1994 indicated algal layer formation to take place annually. Delta 18O, chemical ions (Na+, Cl-, SO42-, and NO3-) and microparticles failed to show any clear seasonal variation, particularly so at depths exceeding 2 m, possibly due to heavy melt-water percolation. Snow algae in the ice core would thus be accurate boundary markers of annual layers in the ice cores of this region. Algal biomass in each annual layer was noted to be quite closely correlated with the following two environmental indices calculated from air temperature and precipitation at Kyangjing (3,920 m a.s.l.), the village nearest the Yala Glacier: estimated mean snow cover thickness (MST) and estimated summer mass balance (SMB) (n = 6, r = -0.975, P snow cover thickness on algal layers, which would be a major determinant of light available for algal growth on the glacier. The algal biomass was also found to be roughly correlated with air temperature (n = 7, r = 0.773, P snow algae. Snow algal biomass in an ice core should prove a good environmental marker for indicating summer mass balance which is important for understanding summer-accumulation-type glaciers in this region.

  8. Summary of the analyses for recovery factors (United States)

    Verma, Mahendra K.


    IntroductionIn order to determine the hydrocarbon potential of oil reservoirs within the U.S. sedimentary basins for which the carbon dioxide enhanced oil recovery (CO2-EOR) process has been considered suitable, the CO2 Prophet model was chosen by the U.S. Geological Survey (USGS) to be the primary source for estimating recovery-factor values for individual reservoirs. The choice was made because of the model’s reliability and the ease with which it can be used to assess a large number of reservoirs. The other two approaches—the empirical decline curve analysis (DCA) method and a review of published literature on CO2-EOR projects—were deployed to verify the results of the CO2 Prophet model. This chapter discusses the results from CO2 Prophet (chapter B, by Emil D. Attanasi, this report) and compares them with results from decline curve analysis (chapter C, by Hossein Jahediesfanjani) and those reported in the literature for selected reservoirs with adequate data for analyses (chapter D, by Ricardo A. Olea).To estimate the technically recoverable hydrocarbon potential for oil reservoirs where CO2-EOR has been applied, two of the three approaches—CO2 Prophet modeling and DCA—do not include analysis of economic factors, while the third approach—review of published literature—implicitly includes economics. For selected reservoirs, DCA has provided estimates of the technically recoverable hydrocarbon volumes, which, in combination with calculated amounts of original oil in place (OOIP), helped establish incremental CO2-EOR recovery factors for individual reservoirs.The review of published technical papers and reports has provided substantial information on recovery factors for 70 CO2-EOR projects that are either commercially profitable or classified as pilot tests. When comparing the results, it is important to bear in mind the differences and limitations of these three approaches.

  9. On categorizations in analyses of alcohol teratogenesis. (United States)

    Sampson, P D; Streissguth, A P; Bookstein, F L; Barr, H M


    In biomedical scientific investigations, expositions of findings are conceptually simplest when they comprise comparisons of discrete groups of individuals or involve discrete features or characteristics of individuals. But the descriptive benefits of categorization become outweighed by their limitations in studies involving dose-response relationships, as in many teratogenic and environmental exposure studies. This article addresses a pair of categorization issues concerning the effects of prenatal alcohol exposure that have important public health consequences: the labeling of individuals as fetal alcohol syndrome (FAS) versus fetal alcohol effects (FAE) or alcohol-related neurodevelopmental disorder (ARND), and the categorization of prenatal exposure dose by thresholds. We present data showing that patients with FAS and others with FAE do not have meaningfully different behavioral performance, standardized scores of IQ, arithmetic and adaptive behavior, or secondary disabilities. Similarly overlapping distributions on measures of executive functioning offer a basis for identifying alcohol-affected individuals in a manner that does not simply reflect IQ deficits. At the other end of the teratological continuum, we turn to the reporting of threshold effects in dose-response relationships. Here we illustrate the importance of multivariate analyses using data from the Seattle, Washington, longitudinal prospective study on alcohol and pregnancy. Relationships between many neurobehavioral outcomes and measures of prenatal alcohol exposure are monotone without threshold down to the lowest nonzero levels of exposure, a finding consistent with reports from animal studies. In sum, alcohol effects on the developing human brain appear to be a continuum without threshold when dose and behavioral effects are quantified appropriately.

  10. Sensitivity analyses for four pesticide leaching models. (United States)

    Dubus, Igor G; Brown, Colin D; Beulke, Sabine


    Sensitivity analyses using a one-at-a-time approach were carried out for leaching models which have been widely used for pesticide registration in Europe (PELMO, PRZM, PESTLA and MACRO). Four scenarios were considered for simulation of the leaching of two theoretical pesticides in a sandy loam and a clay loam soil, each with a broad distribution across Europe. Input parameters were varied within bounds reflecting their uncertainty and the influence of these variations on model predictions was investigated for accumulated percolation at 1-m depth and pesticide loading in leachate. Predictions for the base-case scenarios differed between chromatographic models and the preferential flow model MACRO for which large but transient pesticide losses were predicted in the clay loam. Volumes of percolated water predicted by the four models were affected by a small number of input parameters and to a small extent only, suggesting that meteorological variables will be the main drivers of water balance predictions. In contrast to percolation, predictions for pesticide loss were found to be sensitive to a large number of input parameters and to a much greater extent. Parameters which had the largest influence on the prediction of pesticide loss were generally those related to chemical sorption (Freundlich exponent nf and distribution coefficient Kf) and degradation (either degradation rates or DT50, QTEN value). Nevertheless, a significant influence of soil properties (field capacity, bulk density or parameters defining the boundary between flow domains in MACRO) was also noted in at least one scenario for all models. Large sensitivities were reported for all models, especially PELMO and PRZM, and sensitivity was greater where only limited leaching was simulated. Uncertainty should be addressed in risk assessment procedures for crop-protection products.

  11. Analyse textuelle des discours: Niveaux ou plans d´analyse

    Directory of Open Access Journals (Sweden)

    Jean-Michel Adam


    Full Text Available L’article porte sur la théorie de l´Analyse Textuelle des Discours, à partir d´une reprisede la traduction brésilienne de La linguistique textuelle: introduction à l’analyse textuelle desdiscours (Cortez, 2008. L’ATD est pensée en fonction de trois observations préliminaires: lalinguistique textuelle est une des disciplines de l’analyse de discours, le texte est l’objet d’analysede l’ATD, et, dès qu’il y a texte, c’est-à-dire reconnaissance du fait qu’une suite d’énoncésforme un tout de communication, il y a effet de généricité, c’est-à-dire inscription de cette suited’énoncés dans une classe de discours. Le modèle théorique de l’ATD est éclairé par une reprisede son schéma 4, où sont représentés huit niveaux d’analyse. L´ATD est abordée sous l’angled’une double exigence – des raisons théoriques et des raisons méthodologiques et didactiquesqui conduisent à ces niveaux – et sont détaillées et illustrées les cinq plans ou niveaux d’analysetextuelle. Pour finir, des parties de l’oeuvre sont reprises et élargies, avec d’autres analyses où denouveaux aspcts théoriques sont détaillés.

  12. Genome-Facilitated Analyses of Geomicrobial Processes

    Energy Technology Data Exchange (ETDEWEB)

    Kenneth H. Nealson


    that makes up chitin, virtually all of the strains were in fact capable. This led to the discovery of a great many new genes involved with chitin and NAG metabolism (7). In a similar vein, a detailed study of the sugar utilization pathway revealed a major new insight into the regulation of sugar metabolism in this genus (19). Systems Biology and Comparative Genomics of the shewanellae: Several publications were put together describing the use of comparative genomics for analyses of the group Shewanella, and these were a logical culmination of our genomic-driven research (10,15,18). Eight graduate students received their Ph.D. degrees doing part of the work described here, and four postdoctoral fellows were supported. In addition, approximately 20 undergraduates took part in projects during the grant period.

  13. Effect of reporting bias on meta-analyses of drug trials: reanalysis of meta-analyses. (United States)

    Hart, Beth; Lundh, Andreas; Bero, Lisa


    To investigate the effect of including unpublished trial outcome data obtained from the Food and Drug Administration (FDA) on the results of meta-analyses of drug trials. Reanalysis of meta-analyses. Drug trials with unpublished outcome data for new molecular entities that were approved by the FDA between 2001 and 2002 were identified. For each drug, eligible systematic reviews containing at least one meta-analysis were identified by searches of Medline, Embase, and the Cochrane Library in November 2010. Selection criteria Eligible systematic reviews were done after FDA approval of the drug, were published in English, and had outcomes and comparators that were the same as those of the trials with unpublished FDA trial outcomes, and the characteristics of participants in the systematic reviews were consistent with the FDA approved indication for the drug. Clinical guidelines, conference proceedings, duplicate systematic reviews, and systematic reviews in which included trials were not referenced or that combined trials across multiple drug classes were excluded. Systematic reviews using non-standard meta-analytic techniques (such as Bayesian or network meta-analyses) and those that used inappropriate or invalid methods for calculation of summary statistics (such as unweighted pooled analyses) were also excluded. Two authors independently extracted data from both the published systematic reviews and the FDA's medical and statistical reviews of the trials submitted to FDA. Summary statistics (risk ratios, odds ratios, or weighted mean differences) for relevant outcomes with and without unpublished FDA trial data. 42 meta-analyses (41 efficacy outcomes, one harm outcome) for nine drugs across six drug classes were reanalysed. Overall, addition of unpublished FDA trial data caused 46% (19/41) of the summary estimates from the meta-analyses to show lower efficacy of the drug, 7% (3/41) to show identical efficacy, and 46% (19/41) to show greater efficacy. The summary

  14. First Super-Earth Atmosphere Analysed (United States)


    The atmosphere around a super-Earth exoplanet has been analysed for the first time by an international team of astronomers using ESO's Very Large Telescope. The planet, which is known as GJ 1214b, was studied as it passed in front of its parent star and some of the starlight passed through the planet's atmosphere. We now know that the atmosphere is either mostly water in the form of steam or is dominated by thick clouds or hazes. The results will appear in the 2 December 2010 issue of the journal Nature. The planet GJ 1214b was confirmed in 2009 using the HARPS instrument on ESO's 3.6-metre telescope in Chile (eso0950) [1]. Initial findings suggested that this planet had an atmosphere, which has now been confirmed and studied in detail by an international team of astronomers, led by Jacob Bean (Harvard-Smithsonian Center for Astrophysics), using the FORS instrument on ESO's Very Large Telescope. "This is the first super-Earth to have its atmosphere analysed. We've reached a real milestone on the road toward characterising these worlds," said Bean. GJ 1214b has a radius of about 2.6 times that of the Earth and is about 6.5 times as massive, putting it squarely into the class of exoplanets known as super-Earths. Its host star lies about 40 light-years from Earth in the constellation of Ophiuchus (the Serpent Bearer). It is a faint star [2], but it is also small, which means that the size of the planet is large compared to the stellar disc, making it relatively easy to study [3]. The planet travels across the disc of its parent star once every 38 hours as it orbits at a distance of only two million kilometres: about seventy times closer than the Earth orbits the Sun. To study the atmosphere, the team observed the light coming from the star as the planet passed in front of it [4]. During these transits, some of the starlight passes through the planet's atmosphere and, depending on the chemical composition and weather on the planet, specific wavelengths of light are

  15. Do alternative methods for analysing count data produce similar estimates? Implications for meta-analyses. (United States)

    Herbison, Peter; Robertson, M Clare; McKenzie, Joanne E


    Many randomised trials have count outcomes, such as the number of falls or the number of asthma exacerbations. These outcomes have been treated as counts, continuous outcomes or dichotomised and analysed using a variety of analytical methods. This study examines whether different methods of analysis yield estimates of intervention effect that are similar enough to be reasonably pooled in a meta-analysis. Data were simulated for 10,000 randomised trials under three different amounts of overdispersion, four different event rates and two effect sizes. Each simulated trial was analysed using nine different methods of analysis: rate ratio, Poisson regression, negative binomial regression, risk ratio from dichotomised data, survival to the first event, two methods of adjusting for multiple survival times, ratio of means and ratio of medians. Individual patient data was gathered from eight fall prevention trials, and similar analyses were undertaken. All methods produced similar effect sizes when there was no difference between treatments. Results were similar when there was a moderate difference with two exceptions when the event became more common: (1) risk ratios computed from dichotomised count outcomes and hazard ratios from survival analysis of the time to the first event yielded intervention effects that differed from rate ratios estimated from the negative binomial model (reference model) and (2) the precision of the estimates differed depending on the method used, which may affect both the pooled intervention effect and the observed heterogeneity. The results of the case study of individual data from eight trials evaluating exercise programmes to prevent falls in older people supported the simulation study findings. Information about the differences in treatments is lost when event rates increase and the outcome is dichotomised or time to the first event is analysed otherwise similar results are obtained. Further research is needed to examine the effect of

  16. FY01 Supplemental Science and Performance Analyses, Volume 1: Scientific Bases and Analyses, Rev 00

    Energy Technology Data Exchange (ETDEWEB)

    David Dobson


    The U.S. Department of Energy (DOE) is considering the possible recommendation of a site at Yucca Mountain, Nevada, for development as a geologic repository for the disposal of high-level radioactive waste and spent nuclear fuel. To facilitate public review and comment, in May 2001 the DOE released the Yucca Mountain Science and Engineering Report (S&ER) (DOE 2001 [DIRS 153849]), which presents technical information supporting the consideration of the possible site recommendation. The report summarizes the results of more than 20 years of scientific and engineering studies. A decision to recommend the site has not been made: the DOE has provided the S&ER and its supporting documents as an aid to the public in formulating comments on the possible recommendation. When the S&ER (DOE 2001 [DIRS 153849]) was released, the DOE acknowledged that technical and scientific analyses of the site were ongoing. Therefore, the DOE noted in the Federal Register Notice accompanying the report (66 FR 23 013 [DIRS 155009], p. 2) that additional technical information would be released before the dates, locations, and times for public hearings on the possible recommendation were announced. This information includes: (1) the results of additional technical studies of a potential repository at Yucca Mountain, contained in this FY01 Supplemental Science and Performance Analyses: Vol. 1, Scientific Bases and Analyses; and FY01 Supplemental Science and Performance Analyses: Vol. 2, Performance Analyses (McNeish 2001 [DIRS 155023]) (collectively referred to as the SSPA) and (2) a preliminary evaluation of the Yucca Mountain site's preclosure and postclosure performance against the DOE's proposed site suitability guidelines (10 CFR Part 963 [64 FR 67054] [DIRS 124754]). By making the large amount of information developed on Yucca Mountain available in stages, the DOE intends to provide the public and interested parties with time to review the available materials and to formulate and

  17. Integrated Waste Treatment Unit (IWTU) Input Coal Analyses and Off-Gass Filter (OGF) Content Analyses

    Energy Technology Data Exchange (ETDEWEB)

    Jantzen, Carol M. [Savannah River Site (SRS), Aiken, SC (United States). Savannah River National Lab. (SRNL); Missimer, David M. [Savannah River Site (SRS), Aiken, SC (United States). Savannah River National Lab. (SRNL); Guenther, Chris P. [National Energy Technology Lab. (NETL), Morgantown, WV (United States); Shekhawat, Dushyant [National Energy Technology Lab. (NETL), Morgantown, WV (United States); VanEssendelft, Dirk T. [National Energy Technology Lab. (NETL), Morgantown, WV (United States); Means, Nicholas C. [AECOM Technology Corp., Oak Ridge, TN (United States)


    in process piping and materials, in excessive off-gas absorbent loading, and in undesired process emissions. The ash content of the coal is important as the ash adds to the DMR and other vessel products which affect the final waste product mass and composition. The amount and composition of the ash also affects the reaction kinetics. Thus ash content and composition contributes to the mass balance. In addition, sodium, potassium, calcium, sulfur, and maybe silica and alumina in the ash may contribute to wall-scale formation. Sodium, potassium, and alumina in the ash will be overwhelmed by the sodium, potassium, and alumina from the feed but the impact from the other ash components needs to be quantified. A maximum coal particle size is specified so the feed system does not plug and a minimum particle size is specified to prevent excess elutriation from the DMR to the Process Gas Filter (PGF). A vendor specification was used to procure the calcined coal for IWTU processing. While the vendor supplied a composite analysis for the 22 tons of coal (Appendix A), this study compares independent analyses of the coal performed at the Savannah River National Laboratory (SRNL) and at the National Energy Technology Laboratory (NETL). Three supersacks a were sampled at three different heights within the sack in order to determine within bag variability and between bag variability of the coal. These analyses were also compared to the vendor’s composite analyses and to the coal specification. These analyses were also compared to historic data on Bestac coal analyses that had been performed at Hazen Research Inc. (HRI) between 2004-2011.

  18. Integrating and scheduling an open set of static analyses

    DEFF Research Database (Denmark)

    Eichberg, Michael; Mezini, Mira; Kloppenburg, Sven


    to keep the set of analyses open. We propose an approach to integrating and scheduling an open set of static analyses which decouples the individual analyses and coordinates the analysis executions such that the overall time and space consumption is minimized. The approach has been implemented...

  19. Using a Log Analyser to Assist Research into Haptic Technology (United States)

    Jónsson, Fannar Freyr; Hvannberg, Ebba Þóra

    Usability evaluations collect subjective and objective measures. Examples of the latter are time to complete a task. The paper describes use cases of a log analyser for haptic feedback. The log analyser reads a log file and extracts information such as time of each practice and assessment session, analyses whether the user goes off curve and measures the force applied. A study case using the analyser is performed using a PHANToM haptic learning environment application that is used to teach young visually impaired students the subject of polynomials. The paper answers six questions to illustrate further use cases of the log analyser.

  20. Cochrane reviews compared with industry supported meta-analyses and other meta-analyses of the same drugs: systematic review

    DEFF Research Database (Denmark)

    Jørgensen, Anders W; Hilden, Jørgen; Gøtzsche, Peter C


    OBJECTIVE: To compare the methodological quality and conclusions in Cochrane reviews with those in industry supported meta-analyses and other meta-analyses of the same drugs. DESIGN: Systematic review comparing pairs of meta-analyses that studied the same two drugs in the same disease and were pu...

  1. ATHENA/INTRA analyses for ITER, NSSR-2

    Energy Technology Data Exchange (ETDEWEB)

    Shen, Kecheng; Eriksson, John; Sjoeberg, A


    The present report is a summary report including thermal-hydraulic analyses made at Studsvik Eco and Safety AB for the ITER NSSR-2 safety documentation. The objective of the analyses was to reveal the safety characteristics of various heat transfer systems at specified operating conditions and to indicate the conditions for which there were obvious risks of jeopardising the structural integrity of the coolant systems. In the latter case also some analyses were made to indicate conceivable mitigating measures for maintaining the integrity.The analyses were primarily concerned with the First Wall and Divertor heat transfer systems. Several enveloping transients were analysed with associated specific flow and heat load boundary conditions. The analyses were performed with the ATHENA and INTRA codes 8 refs, 14 figs, 15 tabs

  2. L’analyse en composantes principales de variables non stationnaires


    Casin, Philippe; Stachowiak, Christine; Marque, François


    Les séries chronologiques dont on dispose en économie sont souvent non stationnaires, et il n’est donc pas possible de les décrire à partir d’une analyse en composantes principales : en effet, l’analyse en composantes principales est basée sur l’analyse de la matrice des corrélations entre les variables, et ces corrélations sont fallacieuses. Cet article présente une technique pour décrire ce type de variables, en filtrant les données initiales par une suite d’analyse en composantes principal...

  3. Approche SIG pour une analyse spatiale des infrastructures ...

    African Journals Online (AJOL)


    31 janv. 2014 ... Approche SIG pour une analyse spatiale des infrastructures hydrauliques dans la commune de Zè, Benin. .... méthode d'analyse spatiale qui consiste à créer une zone d'extension, aux dimensions définies par .... chose quiles expose à des risques de santé. SIG et infrastructures hydrauliques : Le SIG est.

  4. Study of the Microbiological Analyses Carried Out at the Laboratory ...

    African Journals Online (AJOL)

    ... Candida albicans, Pseudomonas, Syphilis, hepatitis viruses and HIV) in deferens samples (Urine, Pus, saddle, like and Serum) in patients in relation with total analyses carried out for 3 years. Then we follow their development during this period with the analysis of the results. Keywords: Microbiological analyses; Germs; ...

  5. Training Residential Staff to Conduct Trial-Based Functional Analyses (United States)

    Lambert, Joseph M.; Bloom, Sarah E.; Kunnavatana, S. Shanun; Collins, Shawnee D.; Clay, Casey J.


    We taught 6 supervisors of a residential service provider for adults with developmental disabilities to train 9 house managers to conduct trial-based functional analyses. Effects of the training were evaluated with a nonconcurrent multiple baseline. Results suggest that house managers can be trained to conduct trial-based functional analyses with…

  6. Treatment of Pica through Multiple Analyses of Its Reinforcing Functions. (United States)

    Piazza, Cathleen C.; Fisher, Wayne W.; Hanley, Gregory P.; LeBlanc, Linda A.; Worsdell, April S.; And Others


    A study conducted functional analyses of the pica of three young children. The pica of one participant was maintained by automatic reinforcement; that of the other two was multiply-controlled by social and automatic reinforcement. Preference and treatment analyses were used to address the automatic function of the pica. (Author/CR)

  7. Descriptive Analyses of Pediatric Food Refusal and Acceptance (United States)

    Borrero, Carrie S. W.; Woods, Julia N.; Borrero, John C.; Masler, Elizabeth A.; Lesser, Aaron D.


    Functional analyses of inappropriate mealtime behavior typically include conditions to determine if the contingent delivery of attention, tangible items, or escape reinforce food refusal. In the current investigation, descriptive analyses were conducted for 25 children who had been admitted to a program for the assessment and treatment of food…

  8. Rational Analyses of Information Foraging on the Web (United States)

    Pirolli, Peter


    This article describes rational analyses and cognitive models of Web users developed within information foraging theory. This is done by following the rational analysis methodology of (a) characterizing the problems posed by the environment, (b) developing rational analyses of behavioral solutions to those problems, and (c) developing cognitive…

  9. Analyse af fangererhvervet i Grønland

    DEFF Research Database (Denmark)

    Rasmussen, Rasmus Ole

    Den første gennemgribende analyse af de grønlandske fangeres socio-økonomiske forhold og status ved årtusindskiftet.......Den første gennemgribende analyse af de grønlandske fangeres socio-økonomiske forhold og status ved årtusindskiftet....

  10. Analyses of Great Smoky Mountain Red Spruce Tree Ring Data (United States)

    Paul C. van Deusen; [Editor


    Four different analyses of red spruce tree ring data from the Great Smoky Mountains are presented along with a description of the spruce/fir ecosystem.The analyses use several techniques including spatial analysis, fractals, spline detrending, and the Kalman filter.

  11. Separable potential analyses of coupled NN-NΔ scattering (United States)

    Kloet, W. M.; Tjon, J. A.


    The apparent differences between two analyses of the 1D2 and 3F3 nucleon-nucleon amplitudes by VerWest and the present authors are resolved. In both analyses dynamical poles are present in the scattering amplitude. These poles are associated with fixed left hand singularities. NUCLEAR REACTIONS Intermediate energy NN. Scattering theory. NN-NΔ coupled separable potentials.

  12. Separable potential analyses of coupled NN-N. delta. scattering

    Energy Technology Data Exchange (ETDEWEB)

    Kloet, W.M.; Tjon, J.A.


    The apparent differences between two analyses of the /sup 1/D/sub 2/ and /sup 3/F/sub 3/ nucleon-nucleon amplitudes by Verwest and the present authors are resolved. In both analyses dynamical poles are present in the scattering amplitude. These poles are associated with fixed left hand singularities.

  13. Basic assumptions in statistical analyses of data in biomedical ...

    African Journals Online (AJOL)

    If one or more assumptions are violated, an alternative procedure must be used to obtain valid results. This article aims at highlighting some basic assumptions in statistical analyses of data in biomedical sciences. Keywords: samples, independence, non-parametric, parametric, statistical analyses. Int. J. Biol. Chem. Sci. Vol.

  14. On the reproducibility of meta-analyses : six practical recommendations

    NARCIS (Netherlands)

    Lakens, D.; Hilgard, J.; Staaks, J.


    Meta-analyses play an important role in cumulative science by combining information across multiple studies and attempting to provide effect size estimates corrected for publication bias. Research on the reproducibility of meta-analyses reveals that errors are common, and the percentage of effect

  15. Aftaler om arbejdsmiljø - en analyse af udvalgte overenskomster

    DEFF Research Database (Denmark)

    Petersen, Jens Voxtrup; Wiegmann, Inger-Marie; Vogt-Nielsen, Karl

    En analyse af overenskomsters betydning for arbejdsmiljøet indenfor industri, slagterier, rengøring, det grønne område, hotel og restauration og busdrift.......En analyse af overenskomsters betydning for arbejdsmiljøet indenfor industri, slagterier, rengøring, det grønne område, hotel og restauration og busdrift....

  16. African Tobacco Situation Analyses | CRDI - Centre de recherches ...

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

    Subventions destinées à l'élaboration de propositions dans le cadre de l'initiative Analyses situationnelles sur le tabagisme en Afrique. Le programme Recherche pour la lutte mondiale contre le tabac (RMCT) du CRDI collabore avec la Fondation Bill et Melinda Gates dans le cadre de l'initiative Analyses situationnelles sur ...

  17. A vector matching method for analysing logic Petri nets (United States)

    Du, YuYue; Qi, Liang; Zhou, MengChu


    Batch processing function and passing value indeterminacy in cooperative systems can be described and analysed by logic Petri nets (LPNs). To directly analyse the properties of LPNs, the concept of transition enabling vector sets is presented and a vector matching method used to judge the enabling transitions is proposed in this article. The incidence matrix of LPNs is defined; an equation about marking change due to a transition's firing is given; and a reachable tree is constructed. The state space explosion is mitigated to a certain extent from directly analysing LPNs. Finally, the validity and reliability of the proposed method are illustrated by an example in electronic commerce.

  18. Analysing Information Systems Security In Higher Learning Institutions Of Uganda

    Directory of Open Access Journals (Sweden)

    Mugyenyi Raymond


    Full Text Available Information communication technology has increased globalisation in higher learning institution all over the world. This has been achieved through introduction of systems that ease operations related to information handling in the institutions. The paper assessed and analysed the information systems security performance status in higher learning institutions of Uganda. The existing policies that govern the information security have also been analysed together with the current status of information systems security in Uganda. Citations related management of information systems security and policies have been identified and analysed. A proposed model illustrating the effective management of information in higher learning institutions have been developed. Relevant recommendations and conclusions have also been developed.

  19. Book Review: Qualitative-Quantitative Analyses of Dutch and ...

    African Journals Online (AJOL)

    Abstract. Book Title: Qualitative-Quantitative Analyses of Dutch and Afrikaans Grammar and Lexicon. Book Author: Robert S. Kirsner. 2014. John Benjamins Publishing Company ISBN 9789027215772, price ZAR481.00. 239 pages ...

  20. Quality assessment of economic analyses in pediatric urology. (United States)

    Kokorowski, Paul J; Routh, Jonathan C; Nelson, Caleb P


    To describe and evaluate economic analyses or economic evaluations in pediatric urologic literature, including study types such as cost-effectiveness analysis, which are increasingly common in the medical literature. We performed a systematic literature review of the MEDLINE, EMBASE, and Cochrane databases (1990-2011) to identify economic analyses of pediatric urologic topics. Studies were evaluated using published quality metrics. We examined the analysis type, data sources, perspective, methodology, sensitivity analyses, and the reporting of methods, results, limitations, and conclusions. We identified 2945 nonduplicated studies, 60 of which met inclusion criteria. Economic analyses of pediatric urologic topics increased in number during the study period, from 1 study (2%) in 1990 to 7 (12%) in 2010 (P urologic literature, there is a need for standardization in methods and reporting. Future investigations should attempt to follow standardized reporting guidelines and should pay particular attention to reporting of methods and results, including a comprehensive discussion of limitations. Copyright © 2013 Elsevier Inc. All rights reserved.


    National Aeronautics and Space Administration — This data set contains the results for the Implanted Ion Sensor (IIS) of the Johnstone Particle Analyser (JPA) instrument flown aboard the GIOTTO spacecraft during...

  2. Selection of interest and inflation rates for infrastructure investment analyses. (United States)


    The South Dakota Department of Transportation (SDDOT) uses engineering economic analyses (EEA) to : support planning, design, and construction decision-making such as project programming and planning, : pavement type selection, and the occasional val...

  3. Climate Prediction Center (CPC) US daily temperature analyses (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The U.S. daily temperature analyses are maps depicting various temperature quantities utilizing daily maximum and minimum temperature data across the US. Maps are...

  4. Finite element analyses of railroad tank car head impacts (United States)


    This paper describes engineering analyses of a railroad : tank car impacted at its head by a rigid punch. This type of : collision, referred to as a head impact, is examined using : dynamic, nonlinear finite element analysis (FEA). : Commercial softw...

  5. clubber: removing the bioinformatics bottleneck in big data analyses

    National Research Council Canada - National Science Library

    Maximilian Miller; Chengsheng Zhu; Yana Bromberg


    .... is our automated cluster-load balancing system developed for optimizing these “big data” analyses. Its plug-and-play framework encourages re-use of existing solutions for bioinformatics problems...

  6. Thermodynamic and Quantum Thermodynamic Analyses of Brownian Movement


    Gyftopoulos, Elias P.


    Thermodynamic and quantum thermodynamic analyses of Brownian movement of a solvent and a colloid passing through neutral thermodynamic equilibrium states only. It is shown that Brownian motors and E. coli do not represent Brownian movement.

  7. New insights into domestication of carrot from root transcriptome analyses

    NARCIS (Netherlands)

    Rong, J.; Lammers, Y.; Strasburg, J.L.; Schidlo, N.S.; Ariyurek, Y.; Jong, de T.J.; Klinkhamer, P.G.L.; Smulders, M.J.M.; Vrieling, K.


    Background - Understanding the molecular basis of domestication can provide insights into the processes of rapid evolution and crop improvement. Here we demonstrated the processes of carrot domestication and identified genes under selection based on transcriptome analyses. Results - The root

  8. Using Inequality Measures to Incorporate Environmental Justice into Regulatory Analyses (United States)

    Abstract: Formally evaluating how specific policy measures influence environmental justice is challenging, especially in the context of regulatory analyses in which quantitative comparisons are the norm. However, there is a large literature on developing and applying quantitative...

  9. Multielement trace analyses of SINQ materials by ICP-OES

    Energy Technology Data Exchange (ETDEWEB)

    Keil, R.; Schwikowski, M. [Paul Scherrer Inst. (PSI), Villigen (Switzerland)


    Inductively Coupled Plasma Optical Emission Spectrometry was used to analyse 70 elements in various materials used for construction of the SINQ. Detection limits for individual elements depend strongly on the matrix and had to be determined separately. (author) 1 tab.

  10. Multivariate analyse : een inleiding voor criminologen en andere sociale wetenschappers.

    NARCIS (Netherlands)

    Bijleveld, C.C.J.H. & Commandeur, J.J.F.


    In het boek Multivariate analyse worden de belangrijkste basale multivariate technieken behandeld die worden gebruikt in criminologisch – en ander sociaalwetenschappelijk – onderzoek. Na een korte behandeling in vogelvlucht van belangrijke algemene methodologische en statistische kwesties wordt een

  11. Multivariate analyse : een inleiding voor criminologen en andere sociale wetenschappers.

    NARCIS (Netherlands)

    Bijleveld, C.C.J.H. & Commandeur, J.J.F.


    In het boek Multivariate analyse worden de belangrijkste basale multivariate technieken behandeld die worden gebruikt in criminologisch – en ander sociaalwetenschappelijk – onderzoek. Na een behandeling in vogelvlucht van belangrijke methodologische en statistische kwesties wordt een vijftal

  12. The MAFLA (Mississippi, Alabama, Florida) Study, Grain Size Analyses (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The MAFLA (Mississippi, Alabama, Florida) Study was funded by NOAA as part of the Outer Continental Shelf Program. Dr. L.J. Doyle produced grain size analyses in the...

  13. Systematic derivation of correct variability-aware program analyses

    DEFF Research Database (Denmark)

    Midtgaard, Jan; Dimovski, Aleksandar S.; Brabrand, Claus


    A recent line of work lifts particular verification and analysis methods to Software Product Lines (SPL). In an effort to generalize such case-by-case approaches, we develop a systematic methodology for lifting single-program analyses to SPLs using abstract interpretation. Abstract interpretation...... for lifting analyses and Galois connections. We prove that for analyses developed using our method, the soundness of lifting follows by construction. The resulting variational abstract interpretation is a conceptual framework for understanding, deriving, and validating static analyses for SPLs. Then we show...... how to derive the corresponding variational dataflow equations for an example static analysis, a constant propagation analysis. We also describe how to approximate variability by applying variability-aware abstractions to SPL analysis. Finally, we discuss how to efficiently implement our method...

  14. L'analyse en composantes principales : principes et applications


    Palm, Rodolphe


    This note describes the principles of principal component analysis and gives two examples. Cette note décrit les principes de l'analyse en composantes principales et donne deux exemples numériques d'application.

  15. Phylogenetic and molecular evolutionary analyses of gypsy group ...

    African Journals Online (AJOL)

    Gypsy group retrotransposons in the Egyptian cotton, Gossypium barbadense, was examined by phylogenetic and molecular evolutionary analyses. DNA sequences of gypsy group retrotransposons in two G. barbadense cultivars revealed that these sequences are heterogeneous and represent two distinct families.

  16. Further Analyses of the 433Eros Global Lineament Map (United States)

    Buczkowski, D. L.; Barnouin-Jha, O. S.; Wyrick, D.; Prockter, L. M.


    While some linear features identified on Eros are clearly formed by impact, others do not obviously follow any model predictions of lineation formation by impact and possibly represent a pre-existing internal structure. New analyses are presented.

  17. Approach of Measuring System Analyses for Automotive Part Manufacturing


    S. Homrossukon; S. Sansureerungsigun


    This work aims to introduce an efficient and to standardize the measuring system analyses for automotive industrial. The study started by literature reviewing about the management and analyses measurement system. The approach of measuring system management, then, was constructed. Such approach was validated by collecting the current measuring system data using the equipments of interest including vernier caliper and micrometer. Their accuracy and precision of measurements were analyzed. Final...

  18. Analyse de la croissance de Gymnogongrus patens Agardh de la ...

    African Journals Online (AJOL)

    L'influence des facteurs environnementaux (température, salinité, nitrates, et phosphates) sur l'évolution de la croissance a été étudiée par des analyses en composantes principales (ACP). L'analyse quantitative en composantes principales a montré une variation saisonnière des trois paramètres de croissance. Ainsi, les ...

  19. Dose-related beneficial and harmful effects of gabapentin in postoperative pain management - post hoc analyses from a systematic review with meta-analyses and trial sequential analyses

    DEFF Research Database (Denmark)

    Fabritius, Maria Louise; Wetterslev, Jørn; Mathiesen, Ole


    with meta-analyses aimed to explore the beneficial and harmful effects of various doses of gabapentin administered to surgical patients. Materials and methods: Data in this paper were derived from an original review, and the subgroup analyses were predefined in an International Prospective Register...... of Systematic Reviews published protocol: PROSPERO (ID: CRD42013006538). The methods followed Cochrane guidelines. The Cochrane Library’s CENTRAL, PubMed, EMBASE, Science Citation Index Expanded, Google Scholar, and FDA database were searched for relevant trials. Randomized clinical trials comparing gabapentin...... clinical trials, with 8466 patients, were included. Sixteen were overall low risk of bias. No consistent increase in morphine-sparing effect was observed with increasing doses of gabapentin from the trials with low risk of bias. Analyzing all trials, the smallest and the highest dose subgroups demonstrated...

  20. Methodology for accident analyses of fusion breeder blankets

    Energy Technology Data Exchange (ETDEWEB)

    Dobromir Panayotov; Andrew Grief; Brad J. Merrill; Julian T. Murgatroyd; Paul Humrickhouse; Yves Poitevin; Simon Owen; Markus Iseli


    'Fusion for Energy' (F4E) develops designs and implements the European Test Blanket Systems (TBS) in ITER - Helium-Cooled Lithium-Lead (HCLL) and Helium-Cooled Pebble-Bed (HCPB). Safety demonstration is an essential element for the integration of TBS in ITER and accident analyses are one of its critical segments. A systematic approach to the accident analyses had been acquired under the F4E contract on TBS safety analyses. F4E technical requirements and AMEC and INL efforts resulted in the development of a comprehensive methodology for fusion breeding blanket accident analyses. It addresses the specificity of the breeding blankets design, materials and phenomena and at the same time is consistent with the one already applied to ITER accident analyses. Methodology consists of several phases. At first the reference scenarios are selected on the base of FMEA studies. In the second place elaboration of the accident analyses specifications we use phenomena identification and ranking tables to identify the requirements to be met by the code(s) and TBS models. Thus the limitations of the codes are identified and possible solutions to be built into the models are proposed. These include among others the loose coupling of different codes or code versions in order to simulate multi-fluid flows and phenomena. The code selection and issue of the accident analyses specifications conclude this second step. Furthermore the breeding blanket and ancillary systems models are built on. In this work challenges met and solutions used in the development of both MELCOR and RELAP5 codes models of HCLL and HCPB TBSs will be shared. To continue the developed models are qualified by comparison with finite elements analyses, by code to code comparison and sensitivity studies. Finally, the qualified models are used for the execution of the accident analyses of specific scenario. When possible the methodology phases will be illustrated in the paper by limited number of tables and

  1. The ASSET intercomparison of ozone analyses: method and first results

    Directory of Open Access Journals (Sweden)

    A. J. Geer


    Full Text Available This paper aims to summarise the current performance of ozone data assimilation (DA systems, to show where they can be improved, and to quantify their errors. It examines 11 sets of ozone analyses from 7 different DA systems. Two are numerical weather prediction (NWP systems based on general circulation models (GCMs; the other five use chemistry transport models (CTMs. The systems examined contain either linearised or detailed ozone chemistry, or no chemistry at all. In most analyses, MIPAS (Michelson Interferometer for Passive Atmospheric Sounding ozone data are assimilated; two assimilate SCIAMACHY (Scanning Imaging Absorption Spectrometer for Atmospheric Chartography observations instead. Analyses are compared to independent ozone observations covering the troposphere, stratosphere and lower mesosphere during the period July to November 2003. Biases and standard deviations are largest, and show the largest divergence between systems, in the troposphere, in the upper-troposphere/lower-stratosphere, in the upper-stratosphere and mesosphere, and the Antarctic ozone hole region. However, in any particular area, apart from the troposphere, at least one system can be found that agrees well with independent data. In general, none of the differences can be linked to the assimilation technique (Kalman filter, three or four dimensional variational methods, direct inversion or the system (CTM or NWP system. Where results diverge, a main explanation is the way ozone is modelled. It is important to correctly model transport at the tropical tropopause, to avoid positive biases and excessive structure in the ozone field. In the southern hemisphere ozone hole, only the analyses which correctly model heterogeneous ozone depletion are able to reproduce the near-complete ozone destruction over the pole. In the upper-stratosphere and mesosphere (above 5 hPa, some ozone photochemistry schemes caused large but easily remedied biases. The diurnal cycle of ozone in

  2. VESPA: Very large-scale Evolutionary and Selective Pressure Analyses

    Directory of Open Access Journals (Sweden)

    Andrew E. Webb


    Full Text Available Background Large-scale molecular evolutionary analyses of protein coding sequences requires a number of preparatory inter-related steps from finding gene families, to generating alignments and phylogenetic trees and assessing selective pressure variation. Each phase of these analyses can represent significant challenges, particularly when working with entire proteomes (all protein coding sequences in a genome from a large number of species. Methods We present VESPA, software capable of automating a selective pressure analysis using codeML in addition to the preparatory analyses and summary statistics. VESPA is written in python and Perl and is designed to run within a UNIX environment. Results We have benchmarked VESPA and our results show that the method is consistent, performs well on both large scale and smaller scale datasets, and produces results in line with previously published datasets. Discussion Large-scale gene family identification, sequence alignment, and phylogeny reconstruction are all important aspects of large-scale molecular evolutionary analyses. VESPA provides flexible software for simplifying these processes along with downstream selective pressure variation analyses. The software automatically interprets results from codeML and produces simplified summary files to assist the user in better understanding the results. VESPA may be found at the following website:

  3. Guide: a desktop application for analysing gene expression data. (United States)

    Choi, Jarny


    Multiplecompeting bioinformatics tools exist for next-generation sequencing data analysis. Many of these tools are available as R/Bioconductor modules, and it can be challenging for the bench biologist without any programming background to quickly analyse genomics data. Here, we present an application that is designed to be simple to use, while leveraging the power of R as the analysis engine behind the scenes. Genome Informatics Data Explorer (Guide) is a desktop application designed for the bench biologist to analyse RNA-seq and microarray gene expression data. It requires a text file of summarised read counts or expression values as input data, and performs differential expression analyses at both the gene and pathway level. It uses well-established R/Bioconductor packages such as limma for its analyses, without requiring the user to have specific knowledge of the underlying R functions. Results are presented in figures or interactive tables which integrate useful data from multiple sources such as gene annotation and orthologue data. Advanced options include the ability to edit R commands to customise the analysis pipeline. Guide is a desktop application designed to query gene expression data in a user-friendly way while automatically communicating with R. Its customisation options make it possible to use different bioinformatics tools available through R/Bioconductor for its analyses, while keeping the core usage simple. Guide is written in the cross-platform framework of Qt, and is freely available for use from

  4. HLA region excluded by linkage analyses of early onset periodontitis

    Energy Technology Data Exchange (ETDEWEB)

    Sun, C.; Wang, S.; Lopez, N.


    Previous studies suggested that HLA genes may influence susceptibility to early-onset periodontitis (EOP). Segregation analyses indicate that EOP may be due to a single major gene. We conducted linkage analyses to assess possible HLA effects on EOP. Fifty families with two or more close relatives affected by EOP were ascertained in Virginia and Chile. A microsatellite polymorphism within the HLA region (at the tumor necrosis factor beta locus) was typed using PCR. Linkage analyses used a donimant model most strongly supported by previous studies. Assuming locus homogeneity, our results exclude a susceptibility gene within 10 cM on either side of our marker locus. This encompasses all of the HLA region. Analyses assuming alternative models gave qualitatively similar results. Allowing for locus heterogeneity, our data still provide no support for HLA-region involvement. However, our data do not statistically exclude (LOD <-2.0) hypotheses of disease-locus heterogeneity, including models where up to half of our families could contain an EOP disease gene located in the HLA region. This is due to the limited power of even our relatively large collection of families and the inherent difficulties of mapping genes for disorders that have complex and heterogeneous etiologies. Additional statistical analyses, recruitment of families, and typing of flanking DNA markers are planned to more conclusively address these issues with respect to the HLA region and other candidate locations in the human genome. Additional results for markers covering most of the human genome will also be presented.

  5. Performance and Vibration Analyses of Lift-Offset Helicopters

    Directory of Open Access Journals (Sweden)

    Jeong-In Go


    Full Text Available A validation study on the performance and vibration analyses of the XH-59A compound helicopter is conducted to establish techniques for the comprehensive analysis of lift-offset compound helicopters. This study considers the XH-59A lift-offset compound helicopter using a rigid coaxial rotor system as a verification model. CAMRAD II (Comprehensive Analytical Method of Rotorcraft Aerodynamics and Dynamics II, a comprehensive analysis code, is used as a tool for the performance, vibration, and loads analyses. A general free wake model, which is a more sophisticated wake model than other wake models, is used to obtain good results for the comprehensive analysis. Performance analyses of the XH-59A helicopter with and without auxiliary propulsion are conducted in various flight conditions. In addition, vibration analyses of the XH-59A compound helicopter configuration are conducted in the forward flight condition. The present comprehensive analysis results are in good agreement with the flight test and previous analyses. Therefore, techniques for the comprehensive analysis of lift-offset compound helicopters are appropriately established. Furthermore, the rotor lifts are calculated for the XH-59A lift-offset compound helicopter in the forward flight condition to investigate the airloads characteristics of the ABC™ (Advancing Blade Concept rotor.

  6. Modeling Citable Textual Analyses for the Homer Multitext

    Directory of Open Access Journals (Sweden)

    Christopher William Blackwell


    Full Text Available The 'Homer Multitext' project (hmt is documenting the language and structure of Greek epic poetry, and the ancient tradition of commentary on it. The project’s primary data consist of editions of Greek texts; automated and manually created readings analyze the texts across historical and thematic axes. This paper describes an abstract model we follow in documenting an open-ended body of diverse analyses. The analyses apply to passages of texts at different levels of granularity; they may refer to overlapping or mutually exclusive passages of text; and they may apply to non-contiguous passages of text. All are recorded in with explicit, concise, machine-actionable canonical citation of both text passage and analysis in a scheme aligning all analyses to a common notional text. We cite our texts with urns that capture a passage’s position in an 'Ordered Hierarchy of Citation Objects' (ohco2. Analyses are modeled as data-objects with five properties. We create collections of ‘analytical objects’, each uniquely identified by its own urn and each aligned to a particular edition of a text by a urn citation. We can view these analytical objects as an extension of the edition’s citation hierarchy; since they are explicitly ordered by their alignment with the edition they analyze, each collection of analyses meets satisfies the (ohco2 model of a citable text. We call these texts that are derived from and aligned to an edition ‘analytical exemplars’.

  7. Using Inequality Measures to Incorporate Environmental Justice into Regulatory Analyses

    Directory of Open Access Journals (Sweden)

    Jonathan I. Levy


    Full Text Available Formally evaluating how specific policy measures influence environmental justice is challenging, especially in the context of regulatory analyses in which quantitative comparisons are the norm. However, there is a large literature on developing and applying quantitative measures of health inequality in other settings, and these measures may be applicable to environmental regulatory analyses. In this paper, we provide information to assist policy decision makers in determining the viability of using measures of health inequality in the context of environmental regulatory analyses. We conclude that quantification of the distribution of inequalities in health outcomes across social groups of concern, considering both within-group and between-group comparisons, would be consistent with both the structure of regulatory analysis and the core definition of environmental justice. Appropriate application of inequality indicators requires thorough characterization of the baseline distribution of exposures and risks, leveraging data generally available within regulatory analyses. Multiple inequality indicators may be applicable to regulatory analyses, and the choice among indicators should be based on explicit value judgments regarding the dimensions of environmental justice of greatest interest.

  8. Methodological Quality Assessment of Meta-analyses in Endodontics. (United States)

    Kattan, Sereen; Lee, Su-Min; Kohli, Meetu R; Setzer, Frank C; Karabucak, Bekir


    The objectives of this review were to assess the methodological quality of published meta-analyses related to endodontics using the assessment of multiple systematic reviews (AMSTAR) tool and to provide a follow-up to previously published reviews. Three electronic databases were searched for eligible studies according to the inclusion and exclusion criteria: Embase via Ovid, The Cochrane Library, and Scopus. The electronic search was amended by a hand search of 6 dental journals (International Endodontic Journal; Journal of Endodontics; Australian Endodontic Journal; Oral Surgery, Oral Medicine, Oral Pathology, Oral Radiology; Endodontics and Dental Traumatology; and Journal of Dental Research). The searches were conducted to include articles published after July 2009, and the deadline for inclusion of the meta-analyses was November 30, 2016. The AMSTAR assessment tool was used to evaluate the methodological quality of all included studies. A total of 36 reports of meta-analyses were included. The overall quality of the meta-analyses reports was found to be medium, with an estimated mean overall AMSTAR score of 7.25 (95% confidence interval, 6.59-7.90). The most poorly assessed areas were providing an a priori design, the assessment of the status of publication, and publication bias. In recent publications in the field of endodontics, the overall quality of the reported meta-analyses is medium according to AMSTAR. Copyright © 2017 American Association of Endodontists. Published by Elsevier Inc. All rights reserved.

  9. Utilization of Large Scale Surface Models for Detailed Visibility Analyses (United States)

    Caha, J.; Kačmařík, M.


    This article demonstrates utilization of large scale surface models with small spatial resolution and high accuracy, acquired from Unmanned Aerial Vehicle scanning, for visibility analyses. The importance of large scale data for visibility analyses on the local scale, where the detail of the surface model is the most defining factor, is described. The focus is not only the classic Boolean visibility, that is usually determined within GIS, but also on so called extended viewsheds that aims to provide more information about visibility. The case study with examples of visibility analyses was performed on river Opava, near the Ostrava city (Czech Republic). The multiple Boolean viewshed analysis and global horizon viewshed were calculated to determine most prominent features and visibility barriers of the surface. Besides that, the extended viewshed showing angle difference above the local horizon, which describes angular height of the target area above the barrier, is shown. The case study proved that large scale models are appropriate data source for visibility analyses on local level. The discussion summarizes possible future applications and further development directions of visibility analyses.

  10. Fourier Transform Mass Spectrometry: The Transformation of Modern Environmental Analyses (United States)

    Lim, Lucy; Yan, Fangzhi; Bach, Stephen; Pihakari, Katianna; Klein, David


    Unknown compounds in environmental samples are difficult to identify using standard mass spectrometric methods. Fourier transform mass spectrometry (FTMS) has revolutionized how environmental analyses are performed. With its unsurpassed mass accuracy, high resolution and sensitivity, researchers now have a tool for difficult and complex environmental analyses. Two features of FTMS are responsible for changing the face of how complex analyses are accomplished. First is the ability to quickly and with high mass accuracy determine the presence of unknown chemical residues in samples. For years, the field has been limited by mass spectrometric methods that were based on knowing what compounds of interest were. Secondly, by utilizing the high resolution capabilities coupled with the low detection limits of FTMS, analysts also could dilute the sample sufficiently to minimize the ionization changes from varied matrices. PMID:26784175

  11. Towards Reproducible Research Data Analyses in LHC Particle Physics

    CERN Document Server

    Simko, Tibor


    The reproducibility of the research data analysis requires having access not only to the original datasets, but also to the computing environment, the analysis software and the workflow used to produce the original results. We present the nascent CERN Analysis Preservation platform with a set of tools developed to support particle physics researchers in preserving the knowledge around analyses so that capturing, sharing, reusing and reinterpreting data becomes easier. The presentation will focus on three pillars: (i) capturing structured knowledge information about data analysis processes; (ii) capturing the computing environment, the software code, the datasets, the configuration and other information assets used in data analyses; (iii) re-instantiating of preserved analyses on a containerised computing cloud for the purposes of re-validation and re-interpretation.

  12. Scenario evolution: Interaction between event tree construction and numerical analyses

    Energy Technology Data Exchange (ETDEWEB)

    Barr, G.E.; Barnard, R.W.; Dockery, H.A.; Dunn, E. [Sandia National Labs., Albuquerque, NM (USA); MacIntyre, A.T. [Lawrence Livermore National Lab., CA (USA)


    Construction of well-posed scenarios for the range of conditions possible at any proposed repository site is a critical first step to assessing total system performance. Event tree construction is the method that is being used to develop potential failure scenarios for the proposed nuclear waste repository at Yucca Mountain. An event tree begins with an initial event or condition. Subsequent events are listed in a sequence, leading eventually to release of radionuclides to the accessible environment. Ensuring the validity of the scenarios requires iteration between problems constructed using scenarios contained in the event tree sequence, experimental results, and numerical analyses. Details not adequately captured within the tree initially may become more apparent as a result of analyses. To illustrate this process, the authors discuss the iterations used to develop numerical analyses for PACE-90 (Performance Assessment Calculational Exercises) using basaltic igneous activity and human-intrusion event trees.

  13. Scenario evolution: Interaction between event tree construction and numerical analyses

    Energy Technology Data Exchange (ETDEWEB)

    Barr, G.E.; Barnard, R.W.; Dockery, H.A.; Dunn, E. [Sandia National Labs., Albuquerque, NM (United States); MacIntyre, A.T. [Lawrence Livermore National Lab., CA (United States)


    Construction of well-posed scenarios for the range of conditions possible at any proposed repository site is a critical first step to assessing total system performance. Even tree construction is the method that is being used to develop potential failure scenarios for the proposed nuclear waste repository at Yucca Mountain. An event tree begins with an initial event or condition. Subsequent events are listed in a sequence, leading eventually to release of radionuclides to the accessible environment. Ensuring the validity of the scenarios requires iteration between problems constructed using scenarios contained in the event tree sequence, experimental results, and numerical analyses. Details not adequately captured within the tree initially may become more apparent as a result of analyses. To illustrate this process, we discuss the iterations used to develop numerical analyses for PACE-90 using basaltic igneous activity and human-intrusion event trees.

  14. Multiple preequilibrium emission in Feshbach-Kerman-Koonin analyses (United States)

    Chadwick, M. B.; Young, P. G.; George, D. C.; Watanabe, Y.


    We describe how multiple preequilibrium emission can be included in the Feshbach-Kerman-Koonin (FKK) theory. By analyzing (p,xn) and (p,xp) reactions on zirconium, at incident energies of 80 and 160 MeV, the imporance of multiple preequilibrium emission can be clearly seen. This mechanism accounts for much of the emission spectra and its importance extends to relatively high emission energies. We show that multiple preequilibrium must be included in FKK analyses at these incident energies in order to simultaneously satisfy unitarity and account for inclusive nucleon emission spectra. The importance of multistep processes is reduced in comparsion to analyses which omit multiple preequilibrium. Our calculated angular distributions account for measurements except at the highest backward angles, where we underpredict the data. We compare our results with other analyses at these energies.

  15. Finite element analyses of a linear-accelerator electron gun

    Energy Technology Data Exchange (ETDEWEB)

    Iqbal, M., E-mail:, E-mail: [Centre for High Energy Physics, University of the Punjab, Lahore 45590 (Pakistan); Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049 (China); Wasy, A. [Department of Mechanical Engineering, Changwon National University, Changwon 641773 (Korea, Republic of); Islam, G. U. [Centre for High Energy Physics, University of the Punjab, Lahore 45590 (Pakistan); Zhou, Z. [Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049 (China)


    Thermo-structural analyses of the Beijing Electron-Positron Collider (BEPCII) linear-accelerator, electron gun, were performed for the gun operating with the cathode at 1000 °C. The gun was modeled in computer aided three-dimensional interactive application for finite element analyses through ANSYS workbench. This was followed by simulations using the SLAC electron beam trajectory program EGUN for beam optics analyses. The simulations were compared with experimental results of the assembly to verify its beam parameters under the same boundary conditions. Simulation and test results were found to be in good agreement and hence confirmed the design parameters under the defined operating temperature. The gun is operating continuously since commissioning without any thermal induced failures for the BEPCII linear accelerator.

  16. Finite element analyses of a linear-accelerator electron gun (United States)

    Iqbal, M.; Wasy, A.; Islam, G. U.; Zhou, Z.


    Thermo-structural analyses of the Beijing Electron-Positron Collider (BEPCII) linear-accelerator, electron gun, were performed for the gun operating with the cathode at 1000 °C. The gun was modeled in computer aided three-dimensional interactive application for finite element analyses through ANSYS workbench. This was followed by simulations using the SLAC electron beam trajectory program EGUN for beam optics analyses. The simulations were compared with experimental results of the assembly to verify its beam parameters under the same boundary conditions. Simulation and test results were found to be in good agreement and hence confirmed the design parameters under the defined operating temperature. The gun is operating continuously since commissioning without any thermal induced failures for the BEPCII linear accelerator.

  17. Thermo-Elastic Finite Element Analyses of Annular Nuclear Fuels (United States)

    Kwon, Y. D.; Kwon, S. B.; Rho, K. T.; Kim, M. S.; Song, H. J.

    In this study, we tried to examine the pros and cons of the annular type of fuel concerning mainly with the temperatures and stresses of pellet and cladding. The inner and outer gaps between pellet and cladding may play an important role on the temperature distribution and stress distribution of fuel system. Thus, we tested several inner and outer gap cases, and we evaluated the effect of gaps on fuel systems. We conducted thermo-elastic-plastic-creep analyses using an in-house thermo-elastic-plastic-creep finite element program that adopted the 'effective-stress-function' algorithm. Most analyses were conducted until the gaps disappeared; however, certain analyses lasted for 1582 days, after which the fuels were replaced. Further study on the optimal gaps sizes for annular nuclear fuel systems is still required.

  18. Using Meta-analyses for Comparative Effectiveness Research (United States)

    Ruppar, Todd M.; Phillips, Lorraine J.; Chase, Jo-Ana D.


    Comparative effectiveness research seeks to identify the most effective interventions for particular patient populations. Meta-analysis is an especially valuable form of comparative effectiveness research because it emphasizes the magnitude of intervention effects rather than relying on tests of statistical significance among primary studies. Overall effects can be calculated for diverse clinical and patient-centered variables to determine the outcome patterns. Moderator analyses compare intervention characteristics among primary studies by determining if effect sizes vary among studies with different intervention characteristics. Intervention effectiveness can be linked to patient characteristics to provide evidence for patient-centered care. Moderator analyses often answer questions never posed by primary studies because neither multiple intervention characteristics nor populations are compared in single primary studies. Thus meta-analyses provide unique contributions to knowledge. Although meta-analysis is a powerful comparative effectiveness strategy, methodological challenges and limitations in primary research must be acknowledged to interpret findings. PMID:22789450

  19. Fourier Transform Mass Spectrometry: The Transformation of Modern Environmental Analyses

    Directory of Open Access Journals (Sweden)

    Lucy Lim


    Full Text Available Unknown compounds in environmental samples are difficult to identify using standard mass spectrometric methods. Fourier transform mass spectrometry (FTMS has revolutionized how environmental analyses are performed. With its unsurpassed mass accuracy, high resolution and sensitivity, researchers now have a tool for difficult and complex environmental analyses. Two features of FTMS are responsible for changing the face of how complex analyses are accomplished. First is the ability to quickly and with high mass accuracy determine the presence of unknown chemical residues in samples. For years, the field has been limited by mass spectrometric methods that were based on knowing what compounds of interest were. Secondly, by utilizing the high resolution capabilities coupled with the low detection limits of FTMS, analysts also could dilute the sample sufficiently to minimize the ionization changes from varied matrices.

  20. A large acceptance analysing magnet for HTS-ECR source

    Energy Technology Data Exchange (ETDEWEB)

    Mandal, A. [Inter University Accelerator Centre, Aruna Asaf Ali Marg, New Delhi 110067 (India)], E-mail:; Rodrigues, G.; Kanjilal, D. [Inter University Accelerator Centre, Aruna Asaf Ali Marg, New Delhi 110067 (India); Brodt, Peter; Bodker, Franz [Danfysik, Jyllinge (Denmark)


    A large acceptance analysing magnet has been designed, fabricated and tested. The design aim is to analyse highly charged ions from a high temperature superconducting electron cyclotron resonance ion source, PKDELIS on a 400 kV high voltage platform. The magnet has a unique design incorporating multipole corrections to minimise higher order aberrations using special pole shapes. For double focussing condition, the entrance and exit shim angles have been optimised after inclusion of the gap effect. Since the analysing magnet will be operated on a high voltage platform, the magnet and associated high current power supply are designed to be air-cooled. Special care has been taken in the design of the magnet to have minimum weight, good acceptance and moderate mass resolution.

  1. Analyses of Fractures that have Caused Traffic Accidents

    Directory of Open Access Journals (Sweden)

    Silvestar Perše


    Full Text Available The paper analyses some fractures of vehicle componentswhich have caused traffic accidents. The methods of analysingthe cause of fracture have been described, as well as the maintypes of fractures. The first analysed cause of a fracture is the excessivelyrough machine finish which leaves cracks (stress concentrators,the starting points of crack propagation. The secondcause is unprofessionally per[01med welding which later inservice causes fracture at the weld. The third cause is the toohigh content of carbon in the material of the railway vehiclewheel rim. Dwing braking, the higher content of carbon causedformation of excessively hard (and brittle martensite in thesurface layer of the rim.

  2. Thermal Analyses and Verification for HAUSAT-2 Small Satellite

    Directory of Open Access Journals (Sweden)

    Mi-Hyeon Lee


    Full Text Available HAUSAT-2 is nano satellite with 25 kg mass being developed by Space System Research Lab. in Hnakuk Aviation University. This paper addresses HAUSAT-2 small satellite thermal analyses and its verification at satellite system, electronic box, and PCB levels. Thermal model which is used for system-level and box-level thermal analyses was verified and corrected through thermal vacuum/balance test. The new board-level thermal analysis methodology, modelling high-power dissipating EEE parts directly, was proposed. The proposed methodology has been verified with test results.

  3. [The maintenance of automatic analysers and associated documentation]. (United States)

    Adjidé, V; Fournier, P; Vassault, A


    The maintenance of automatic analysers and associated documentation taking part in the requirements of the ISO 15189 Standard and the French regulation as well have to be defined in the laboratory policy. The management of the periodic maintenance and documentation shall be implemented and fulfilled. The organisation of corrective maintenance has to be managed to avoid interruption of the task of the laboratory. The different recommendations concern the identification of materials including automatic analysers, the environmental conditions to take into account, the documentation provided by the manufacturer and documents prepared by the laboratory including procedures for maintenance.


    Reed, Derek D


    The generalized matching equation is a robust and empirically supported means of analyzing relations between reinforcement and behavior. Unfortunately, no simple task analysis is available to behavior analysts interested in using the matching equation to evaluate data in clinical or applied settings. This technical article presents a task analysis for the use of Microsoft Excel to analyze and plot the generalized matching equation. Using a data-based case example and a step-by-step guide for completing the analysis, these instructions are intended to promote the use of quantitative analyses by researchers with little to no experience in quantitative analyses or the matching law. PMID:20514196

  5. Paternity after vasectomy with two previous semen analyses without spermatozoa


    Lucon, Marcos; Lucon, Antonio Marmo; Pasqualoto, Fabio Firmbach; Srougi, Miguel


    CONTEXT: The risk of paternity after vasectomy is rare but still exists. Overall failure to achieve sterility after vasectomy occurs in 0.2 to 5.3% of patients due to technical failure or recanalization. The objective of this report was to describe a rare but notable case of proven paternity in which the semen analyses had not given evidence of spermatozoa. CASE REPORT: A 44-year-old vasectomized man whose semen analyses had shown azoospermia became a father four years after sterilization. Bl...

  6. Preserving and reusing high-energy-physics data analyses

    CERN Document Server

    Simko, Tibor; Dasler, Robin; Fokianos, Pamfilos; Kuncar, Jiri; Lavasa, Artemis; Mattmann, Annemarie; Rodriguez, Diego; Trzcinska, Anna; Tsanaktsidis, Ioannis


    The revalidation, reuse and reinterpretation of data analyses require having access to the original virtual environments, datasets and software that was used to produce the original scientific result. The CERN Analysis Preservation pilot project is developing a set of tools that support particle physics researchers in preserving the knowledge around analyses so that capturing, sharing, reusing and reinterpreting data becomes easier. In this talk, we shall notably focus on the aspects of reusing a preserved analysis. We describe a system that permits to instantiate the preserved analysis workflow on the computing cloud, paving the way to allowing researchers to revalidate and reinterpret research data even many years after the original publication.

  7. Systematic Derivation of Static Analyses for Software Product Lines

    DEFF Research Database (Denmark)

    Midtgaard, Jan; Brabrand, Claus; Wasowski, Andrzej


    A recent line of work lifts particular verification and analysis methods to Software Product Lines (SPL). In an effort to generalize such case-by-case approaches, we develop a systematic methodology for lifting program analyses to SPLs using abstract interpretation. Abstract interpretation...... is a classical framework for deriving static analyses in a compositional, step-by-step manner. We show how to take an analysis expressed as an abstract interpretation and lift each of the abstract interpretation steps to a family of programs. This includes schemes for how to lift domain types, and combinators...

  8. A conceptual framework to analyse supply chain designs

    Directory of Open Access Journals (Sweden)

    J. A. Badenhorst-Weiss


    Full Text Available Objectives: Supply chain design (SCD is a concept that forms an integral part of supply chain management (SCM. Effective SCD enhances supply chain integration (SCI which in turn contributes towards improved supply chain performance. Therefore, organisations' supply chain designs need to be analysed. This article proposes a conceptual framework to analyse organisations' supply chain designs. The objective of this article is to determine whether the proposed conceptual framework is a workable instrument with which organisations can analyse their supply chain designs. Problem investigated: Effective SCD is a complex and demanding undertaking and has become a major challenge for organisations. Moreover, the literature suggests that organisations allow their supply chains to evolve rather than consciously designing them. Although the importance of SCD is emphasised, very little attention is given to what it entails exactly. The problem statement of this article is thus: What are the elements of SCD and how can these elements be included in a conceptual framework to analyse organisations' supply chain designs? Methodology: The methodology used in this article comprised two phases. Firstly, a literature review was conducted to identify SCD elements. The elements were used to develop a conceptual framework with which organisations can analyse their supply chain designs. Secondly, the conceptual framework was tested in 13 organisations to determine whether it is a workable instrument to analyse supply chain designs. The respondents were selected by means of non-probability sampling. Purposive, judgmental and convenience sampling methods were used to select the sample. Findings and implications: As mentioned, the conceptual framework was tested empirically within 13 organisations. The findings show that the conceptual framework is in fact a workable instrument to analyse supply chain designs. Value of the research: The research will make a contribution in

  9. Designing and recasting LHC analyses with MadAnalysis 5

    Energy Technology Data Exchange (ETDEWEB)

    Conte, Eric [Universite de Haute-Alsace, IUT Colmar, Groupe de Recherche de Physique des Hautes Energies (GRPHE), 34 rue du Grillenbreit, BP 50568, Colmar Cedex (France); Dumont, Beranger [Universite Grenoble-Alpes, CNRS/IN2P3, LPSC, Grenoble (France); Fuks, Benjamin [CERN, Theory Division, Physics Department, Geneva 23 (Switzerland); Universite de Strasbourg/CNRS-IN2P3, Institut Pluridisciplinaire Hubert Curien/Departement Recherches Subatomiques, Strasbourg (France); Wymant, Chris [Laboratoire d' Annecy-le-Vieux de Physique Theorique, Annecy-le-Vieux (France); Imperial College London, Department of Infectious Disease Epidemiology, London (United Kingdom)


    We present an extension of the expert mode of the MadAnalysis 5 program dedicated to the design or reinterpretation of high-energy physics collider analyses. We detail the predefined classes, functions and methods available to the user and emphasize the most recent developments. The latter include the possible definition of multiple sub-analyses and a novel user-friendly treatment for the selection criteria. We illustrate this approach by two concrete examples: a CMS search for supersymmetric partners of the top quark and a phenomenological analysis targeting hadronically decaying monotop systems. (orig.)

  10. Publication bias in dermatology systematic reviews and meta-analyses. (United States)

    Atakpo, Paul; Vassar, Matt


    Systematic reviews and meta-analyses in dermatology provide high-level evidence for clinicians and policy makers that influence clinical decision making and treatment guidelines. One methodological problem with systematic reviews is the under representation of unpublished studies. This problem is due in part to publication bias. Omission of statistically non-significant data from meta-analyses may result in overestimation of treatment effect sizes which may lead to clinical consequences. Our goal was to assess whether systematic reviewers in dermatology evaluate and report publication bias. Further, we wanted to conduct our own evaluation of publication bias on meta-analyses that failed to do so. Our study considered systematic reviews and meta-analyses from ten dermatology journals from 2006 to 2016. A PubMed search was conducted, and all full-text articles that met our inclusion criteria were retrieved and coded by the primary author. 293 articles were included in our analysis. Additionally, we formally evaluated publication bias in meta-analyses that failed to do so using trim and fill and cumulative meta-analysis by precision methods. Publication bias was mentioned in 107 articles (36.5%) and was formally evaluated in 64 articles (21.8%). Visual inspection of a funnel plot was the most common method of evaluating publication bias. Publication bias was present in 45 articles (15.3%), not present in 57 articles (19.5%) and not determined in 191 articles (65.2%). Using the trim and fill method, 7 meta-analyses (33.33%) showed evidence of publication bias. Although the trim and fill method only found evidence of publication bias in 7 meta-analyses, the cumulative meta-analysis by precision method found evidence of publication bias in 15 meta-analyses (71.4%). Many of the reviews in our study did not mention or evaluate publication bias. Further, of the 42 articles that stated following PRISMA reporting guidelines, 19 (45.2%) evaluated for publication bias. In

  11. Analysing clinical decision analyses

    NARCIS (Netherlands)

    Habbema, J. D.; Bossuyt, P. M.; Dippel, D. W.; Marshall, S.; Hilden, J.


    We present a critical review of aspects of clinical decision analysis which uses an application to screening for familial intracranial aneurysms. The analysis is reported together with methods for assessing decision trees. These methods appear to be powerful checks on the usually rather intuitive

  12. Analyse - technologies; Analyse - technologies

    Energy Technology Data Exchange (ETDEWEB)

    Roudil, D.; Chevalier, M.; Cormont, Ph.; Viala, F.; Kopp, Ch.; Peillet, O.; Chatroux, D.; Lausenaz, Y.; Villard, J.F.; Bruel, L.; Berhouet, F.; Chartier, F.; Aubert, M.; Blanchet, P.; Steiner, F.; Puech, M.H.; Bienvenu, Ph.; Noire, M.H.; Bouzon, C.; Schrive, L


    In this chapter of the DCC 1999 scientific report, the following theoretical studies are detailed: emulsions characterization by ultrasonics, high resolution wavelength meter, optimization methodology for diffractive and hybrid optic system, reliability for fast switches in power electronics, study of cesium isolation in irradiated fuels, chemical optodes based on evanescent wave absorption, radionuclides (Zirconium 93 and molybdenum 93) determination in irradiated fuels processing effluents, study of viscous liquid ultrafiltration using supercritical CO{sub 2} fluid. (A.L.B.)

  13. Creation of a knowledge management system for QT analyses. (United States)

    Tornøe, Christoffer W; Garnett, Christine E; Wang, Yaning; Florian, Jeffry; Li, Michael; Gobburu, Jogarao V


    An increasing number of thorough QT (TQT) reports are being submitted to the US Food and Drug Administration's interdisciplinary review team for QT (IRT-QT), requiring time-intensive quantitative analyses by a multidisciplinary review team within 45 days. This calls for systematic learning to guide future trials and policies by standardizing and automating the QT analyses to improve review efficiency, provide consistent advice, and enable pooled data analyses to answer key regulatory questions. The QT interval represents the time from initiation of ventricular depolarization to completion of ventricular repolarization recorded by electrocardiograph (ECG) and is used in the proarrhythmic risk assessment. The developed QT knowledge management system is implemented in the R package "QT." Data from 11 crossover TQT studies including time-matched ECGs and pharmacokinetic measurements following single doses of 400 to 1200 mg moxifloxacin were used for the QT analysis example. The automated workflow was divided into 3 components (data management, analysis, and archival). The generated data sets, scripts, tables, and graphs are automatically stored in a queryable repository and summarized in an analysis report. More than 100 TQT studies have been analyzed using the system since 2007. This has dramatically reduced the time needed to review TQT studies and has made the IRT-QT reviews consistent across reviewers. Furthermore, the system enables leveraging prior knowledge through pooled data analyses to answer policy-related questions and to understand the various effects that influence study results.

  14. MARLIN, software to create, run, and analyse spatially realistic simulations

    NARCIS (Netherlands)

    Meirmans, P.G.


    Marlin is a software to create, run, analyse, and visualize spatially explicit population genetic simulations. It provides an intuitive user interface with which the geographical layout of a metapopulation can be drawn by hand or loaded from a map. Furthermore, the interface allows easy selection of

  15. Analysing students' use of recorded lectures through methodological triangulation

    NARCIS (Netherlands)

    Gorissen, Pierre; Van Bruggen, Jan; Jochems, Wim


    Gorissen, P., Van Bruggen, J., & Jochems, W. M. G. (2012). Analysing students' use of recorded lectures through methodological triangulation. In L. Uden, E. S. Corchado Rodríquez, J. F. De Paz Santana, & F. De la Prieta (Eds.), Workshop on Learning Technology in Cloud (LTEC’12) (pp. 145-156).

  16. Formability analyses of uni-directional and textile reinforced thermoplastics

    NARCIS (Netherlands)

    Haanappel, Sebastiaan; ten Thije, R.H.W.; Sachs, Ulrich; Rietman, Bert; Akkerman, Remko


    The formability of two different composite materials used in aerospace industry has been investigated for a representative product geometry. The deformations during forming of carbon UD/PEEK and glass 8HS/PPS blanks with a quasi-isotropic lay-up were analysed. The UD/PEEK product showed severe

  17. A comparison of subgroup analyses in grant applications and publications.

    NARCIS (Netherlands)

    Boonacker, C.W.; Hoes, A.W.; Liere-Visser, K. van; Schilder, A.G.M.; Rovers, M.M.


    In this paper, the authors compare subgroup analyses as outlined in grant applications and their related publications. Grants awarded by the Netherlands Organization for Health Research and Development (ZonMw) from 2001 onward that were finalized before March 1, 2010, were studied. Of the 79 grant

  18. Laser Beam Caustic Measurement with Focal Spot Analyser

    DEFF Research Database (Denmark)

    Olsen, Flemming Ove; Gong, Hui; Bagger, Claus


    In industrial applications of high power CO2-lasers the caustic characteristics of the laser beam have great effects on the performance of the lasers. A welldefined high intense focused spot is essential for reliable production results. This paper presents a focal spot analyser that is developed...... for measuring the beam profiles of focused high power CO2-lasers....

  19. Research on automation of a reductive dissolved organic nitrogen analyser

    NARCIS (Netherlands)

    Le Poupon, C.; Lin, R.G.; Benaim, J.Y; Merks, A.G.A.


    The accurate classical batch method of Duursma (1961), based on the conversion of Dissolved Organic Nitrogen (DON) into NH3, is used as a basis for a new automatic DON analyser. After testing different possibilities through mechanical automation of the original batch technique, in which the

  20. 46 CFR Appendix B to Part 154 - Stress Analyses Definitions (United States)


    ... 46 Shipping 5 2010-10-01 2010-10-01 false Stress Analyses Definitions B Appendix B to Part 154 Shipping COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED) CERTAIN BULK DANGEROUS CARGOES SAFETY STANDARDS FOR SELF-PROPELLED VESSELS CARRYING BULK LIQUEFIED GASES Pt. 154, App. B Appendix B to Part 154...

  1. Publication Bias in Special Education Meta-Analyses (United States)

    Gage, Nicholas A.; Cook, Bryan G.; Reichow, Brian


    Publication bias involves the disproportionate representation of studies with large and significant effects in the published research. Among other problems, publication bias results in inflated omnibus effect sizes in meta-analyses, giving the impression that interventions have stronger effects than they actually do. Although evidence suggests…

  2. Effects of GPS sampling intensity on home range analyses (United States)

    Jeffrey J. Kolodzinski; Lawrence V. Tannenbaum; David A. Osborn; Mark C. Conner; W. Mark Ford; Karl V. Miller


    The two most common methods for determining home ranges, minimum convex polygon (MCP) and kernel analyses, can be affected by sampling intensity. Despite prior research, it remains unclear how high-intensity sampling regimes affect home range estimations. We used datasets from 14 GPS-collared, white-tailed deer (Odocoileus virginianus) to describe...

  3. Karyotype analyses of the species of the genus Jurinea Cass ...

    African Journals Online (AJOL)

    In this study, karyotype analyses of 13 species belonging to the genus Jurinea Cass. (Compositae) and grown naturally in Turkey were conducted. These taxa include Jurinea alpigena C. Koch, Jurinea ancyrensis Bornm., Jurinea aucherana DC., Jurinea cadmea Boiss., Jurinea cataonica Boiss. and Hausskn., Jurinea ...

  4. Analysing relations between specific and total liking scores

    DEFF Research Database (Denmark)

    Menichelli, Elena; Kraggerud, Hilde; Olsen, Nina Veflen


    The objective of this article is to present a new statistical approach for the study of consumer liking. Total liking data are extended by incorporating liking for specific sensory properties. The approach combines different analyses for the purpose of investigating the most important aspects...

  5. Development and Analyses of the Coping Stress Inventory (United States)

    Gadzella, Bernadette M.; Pierce, Devin; Young, Adena


    This is a report on the development of a coping stress inventory and the analyses of the data collected from 344 participants. The Coping Stress Inventory, CSI, with 16 items intercorrelated in the categories (Behavioral, Emotional, and Cognitive Appraisal). The internal consistency for the CSI was 0.77. Responses to the CSI were compared (a)…

  6. Commentary: Analysing phenotypic variation: when old-fashioned ...

    Indian Academy of Sciences (India)

    Home; Journals; Journal of Biosciences; Volume 27; Issue 3. Commentary: Analysing phenotypic variation: when old-fashioned means up-to-date. Vincent Debat Jean R David. Volume 27 Issue 3 June 2002 pp 191-193. Fulltext. Click here to view fulltext PDF. Permanent link:

  7. Quality of Antimalarial Drugs Analysed in the National Quality ...

    African Journals Online (AJOL)

    During the period 2002–2005, the National Quality Control Laboratory analysed 229 samples of antimalarial drugs. In 2002, 42% of these products failed to comply with compendial specifications, with the sulfadoxine/ sulfamethoxypyrazine and pyrimethamine combination products forming 39% of the total failures.

  8. nmr spectroscopic study and dft calculations of vibrational analyses ...

    African Journals Online (AJOL)

    Preferred Customer

    ANALYSES, GIAO NMR SHIELDINGS AND 1JCH, 1JCC SPIN-SPIN COUPLING. CONSTANTS ... proton coupled and uncoupled 13C, 15N, DEPT, COSY, HETCOR, INADEQUATE NMR spectra and the magnitude ... methodology an interesting variety of spin-spin coupling constants can be calculated with good accuracy in ...

  9. Analysing an Audit Cycle: A Critical Realist Account (United States)

    Boughey, Chrissie; McKenna, Sioux


    This paper reports on the use of a framework developed from Bhaskar's critical realism and Archer's social realism to analyse teaching- and learning-related data produced as a result of the first cycle of institutional audits in the South African higher education system. The use of the framework allows us to see what this cycle of audits did…

  10. Analyse socio-economique des pratiques agroecologiques d ...

    African Journals Online (AJOL)

    Analyse socio-economique des pratiques agroecologiques d'intensification de la production agricole dans la region des Savanes au Togo. ... pénibilité du travail et les pesanteurs socio-culturelles. Certaines contraintes sont spécifiques aux pratiques comme le manque de cailloux pour la construction des cordons pierreux.

  11. Radiocarbon analyses along the EDML ice core in Antarctica

    NARCIS (Netherlands)

    van de Wal, R.S.W.; Meijer, H.A.J.; van Rooij, M.; van der Veen, C.


    Samples, 17 in total, from the EDML core drilled at Kohnen station Antarctica are analysed for 14CO and 14CO2 with a dry-extraction technique in combination with accelerator mass spectrometry. Results of the in situ produced 14CO fraction show a very low concentration of in situ produced 14CO.

  12. Time series analyses of mean monthly rainfall for drought ...

    African Journals Online (AJOL)

    This paper analyses the time series characteristics of rainfall data for Sokoto metropolis for 40 years with a view to understanding drought management. Data for this study was obtained from the Nigeria Metrological Agency (NIMET), Sokoto Airport; Sokoto. The data was subjected to time series tests (trend, cycle, seasonal ...

  13. Comparative analyses of milk and cheese samples obtained from ...

    African Journals Online (AJOL)

    Microbiological and biochemical analyses of fresh milk samples collected form nine Holstein-Friesian and three Bunaji (White Fulani)cows under four different treatments (T1 – T4) at Maizube Farms, Minna, Niger State, Nigeria was carried out. Treatment T1 comprised Bunaji breed, while treatments T2 to T4 comprised high, ...

  14. exegetical analyses and spiritual readings of the story of the ...

    African Journals Online (AJOL)

    Exegetical analyses and spiritual readings. 26 of the announcement to Zechariah and the announcement to Mary are also studied in depth. The conclusion reached by Laurentin is that the parallelism is properly limited to the framework of the story. Within this framework, the contrast is a prominent factor. From the social and ...

  15. Analysing the Implemented Curriculum of Mathematics in Preschool Education (United States)

    Zacharos, Konstantinos; Koustourakis, Gerasimos; Papadimitriou, Konstantina


    The purpose of this paper is to contribute to development of research tools for observation and analysis of educational practices used by teachers in preschool classrooms. More specifically, we approached the implemented curriculum of mathematics in Greek preschool education. We analysed the recorded data from a week of teaching practices in eight…

  16. Extension faculty through use of forage analyses and

    African Journals Online (AJOL)

    Dane County Dairy and Livestock Agent, University of Wisconsin-Extension. Use of forage analyses and the three dairy .... exceeded 15000 1with a market value of over US $3 800. Use of milk per unit of land has gained a ..... University of Wisconsin-Extension's. WIS-. PLAN Computing Service computer information system.

  17. Proximate analyses and mineral compositions of the pulp and seeds ...

    African Journals Online (AJOL)

    Proximate analyses and mineral compositions of the pulp and seeds of Adansonia digitata (Baobab fruit) ... It was concluded that the pulp of Adansonia digitata is an important source of vitamin C, while the seed is a potential source of edible oil, potassium, sodium, calcium and magnesium. Keywords: Baobab, Adansonia ...

  18. Interpretation of differential item functioning analyses using external review

    DEFF Research Database (Denmark)

    Scott, Neil W; Fayers, Peter M; Aaronson, Neil K


    considered. Relatively few examples of blinded item reviews were identified, and these were mostly from educational studies. A case study using blinded bilingual reviewers alongside translation DIF analyses of a health-related quality of life instrument is described. Future researchers should consider...

  19. Application of digital image correlation method for analysing crack ...

    Indian Academy of Sciences (India)

    identify minute cracks that are not visible to naked eyes. Additionally, the DIC method has more accuracy and precision than visual observation for analysing crack loadings so that earlier warnings can be realized before cracks develop in the specimen. Keywords. Digital image correlation (DIC); R.C. beam; product quality; ...

  20. analyses have shown some limitations when applied to esti- mating

    African Journals Online (AJOL)


    As length frequency distribution (LFD) analyses have shown some limitations when applied to esti- mating cephalopod growth, recent attention has been aimed at the use of direct methods of age determina- tion, such as size-at-age estimates derived from hard structures, in particular from statoliths (see Jereb et al. 1991 ...

  1. Analysing the Use of History of Mathematics through MKT (United States)

    Jankvist, Uffe Thomas; Mosvold, Reidar; Fauskanger, Janne; Jakobsen, Arne


    In this article, we analyse three "classical" cases of using history of mathematics in teacher training and reinterpret them using the framework of mathematical knowledge for teaching (MKT). We continue with a discussion of the potential benefits of applying MKT as a framework for discussion in research related to the use of history in…

  2. The Development of an Analyses-Intensive Software for Improved ...

    African Journals Online (AJOL)

    The Development of an Analyses-Intensive Software for Improved Cams System Design. ... If you would like more information about how to print, save, and work with PDFs, Highwire Press provides a helpful Frequently Asked Questions about PDFs. Alternatively, you can download the PDF file directly to your computer, from ...

  3. Genetic analyses for deciphering the status and role of ...

    Indian Academy of Sciences (India)


    Genetic analyses for deciphering the status and role of photoperiodic and maturity genes in major Indian soybean cultivars. SANJAY GUPTA1∗, VIRENDER SINGH BHATIA1, GIRIRAJ KUMAWAT1, DEVSHREE THAKUR2,. GOURAV SINGH1, RACHANA TRIPATHI1,3, GYANESH SATPUTE1, RAMGOPAL DEVADAS4,.


    African Journals Online (AJOL)


    Abstract. This paper analyses the time series characteristics of rainfall data for Sokoto metropolis for 40 years with a view to understanding drought management. Data for this study was obtained from the. Nigeria Metrological Agency (NIMET), Sokoto Airport; Sokoto. The data was subjected to time series tests (trend, cycle ...

  5. Consumer Brand Choice: Individual and Group Analyses of Demand Elasticity (United States)

    Oliveira-Castro, Jorge M.; Foxall, Gordon R.; Schrezenmaier, Teresa C.


    Following the behavior-analytic tradition of analyzing individual behavior, the present research investigated demand elasticity of individual consumers purchasing supermarket products, and compared individual and group analyses of elasticity. Panel data from 80 UK consumers purchasing 9 product categories (i.e., baked beans, biscuits, breakfast…

  6. Talking about Brine Shrimps: Three Ways of Analysing Pupil Conversations. (United States)

    Tunnicliffe, Sue Dale; Reiss, Michael J.


    Applies three distinct analyses to recorded and transcribed student conversations (n=240) about brine shrimps. The complementary analytic methods provide information on the content of pupils' conversations in terms of the observations made, the ways in which pupils make sense of their observations, and the ways in which students use conversation…

  7. Global post-Kyoto scenario analyses at PSI

    Energy Technology Data Exchange (ETDEWEB)

    Kypreos, S. [Paul Scherrer Inst. (PSI), Villigen (Switzerland)


    Scenario analyses are described here using the Global MARKAL-Macro Trade (GMMT) model to study the economic implications of the Kyoto Protocol to the UN Convention on Climate change. Some conclusions are derived in terms of efficient implementations of the post-Kyoto extensions of the Protocol. (author) 2 figs., 5 refs.

  8. Environmental analyses of land transportation systems in The Netherlands

    NARCIS (Netherlands)

    Bouwman, Mirjan E.; Moll, Henri C.

    Environmental analyses of the impact of transportation systems on the environment from the cradle to the grave are rare. This article makes a comparison of various Dutch passenger transportation systems by studying their complete life-cycle energy use. Moreover, systems are compared according to

  9. Preliminary analyses and amino acid profile of wild sunflower ...

    African Journals Online (AJOL)

    Tithonia diversifolia (wild sunflower) leaves were harvested, sundried and milled to obtain Tithonia diversifolia leaf meal (TDLM). Samples of the TDLM were analysed for proximate composition, amino acid profile and certain antinutrients. Analysis revealed a composition of 20.6% CP, 18.9% CF, 4.0% EE, 42.5% CHO and ...

  10. Performance, proximate and mineral analyses of African giant land ...

    African Journals Online (AJOL)

    Performance, proximate and mineral analyses of African giant land snail ( Archachatina marginata ) fed different nitrogen sources. ... Analysis of the Hemolymph mineral composition revealed that snails fed Diet I had the highest value for Ca2+, Mg2+ and Fe2+ while the highest value in Na+ and Zn2+ was recorded in snails ...

  11. Analysing land and vegetation cover dynamics during last three ...

    Indian Academy of Sciences (India)

    Home; Journals; Journal of Earth System Science; Volume 123; Issue 7. Analysing land and vegetation cover dynamics during last three ... Indian Institute of Technology, Kharagpur 721 302, India. International Centre for Integrated Mountain Development (ICIMOD), GPO Box 3226, Khumaltar, Lalitpur, Kathmandu, Nepal.

  12. Run-off analyses using isotopes and hydrochemistry in Yushugou ...

    Indian Academy of Sciences (India)

    Home; Journals; Journal of Earth System Science; Volume 126; Issue 6. Run-off analyses using isotopes and hydrochemistry in Yushugou River basin, eastern Tianshan Mountains. Xiaoyan Wang Zhongqin Li ... Yushugou River basin of East Tianshan Mountains receives water from melting glaciers. In recent years, the ...

  13. Exploration of Heterogeneity in Distributed Research Network Drug Safety Analyses (United States)

    Hansen, Richard A.; Zeng, Peng; Ryan, Patrick; Gao, Juan; Sonawane, Kalyani; Teeter, Benjamin; Westrich, Kimberly; Dubois, Robert W.


    Distributed data networks representing large diverse populations are an expanding focus of drug safety research. However, interpreting results is difficult when treatment effect estimates vary across datasets (i.e., heterogeneity). In a previous study, risk estimates were generated for selected drugs and potential adverse outcomes. Analyses were…

  14. Matrix Summaries Improve Research Reports: Secondary Analyses Using Published Literature (United States)

    Zientek, Linda Reichwein; Thompson, Bruce


    Correlation matrices and standard deviations are the building blocks of many of the commonly conducted analyses in published research, and AERA and APA reporting standards recommend their inclusion when reporting research results. The authors argue that the inclusion of correlation/covariance matrices, standard deviations, and means can enhance…

  15. Nuclear Analyses of Indian LLCB Test Blanket System in ITER (United States)

    Swami, H. L.; Shaw, A. K.; Danani, C.; Chaudhuri, Paritosh


    Heading towards the Nuclear Fusion Reactor Program, India is developing Lead Lithium Ceramic Breeder (LLCB) tritium breeding blanket for its future fusion Reactor. A mock-up of the LLCB blanket is proposed to be tested in ITER equatorial port no.2, to ensure the overall performance of blanket in reactor relevant nuclear fusion environment. Nuclear analyses play an important role in LLCB Test Blanket System design & development. It is required for tritium breeding estimation, thermal-hydraulic design, coolants process design, radioactive waste management, equipment maintenance & replacement strategies and nuclear safety. The nuclear behaviour of LLCB test blanket module in ITER is predicated in terms of nuclear responses such as tritium production, nuclear heating, neutron fluxes and radiation damages. Radiation shielding capability of LLCB TBS inside and outside bio-shield was also assessed to fulfill ITER shielding requirements. In order to supports the rad-waste and safety assessment, nuclear activation analyses were carried out and radioactivity data were generated for LLCB TBS components. Nuclear analyses of LLCB TBS are performed using ITER recommended nuclear analyses codes (i.e. MCNP, EASY), nuclear cross section data libraries (i.e. FENDL 2.1, EAF) and neutronic model (ITER C-lite v.l). The paper describes a comprehensive nuclear performance of LLCB TBS in ITER.

  16. How to teach the fundamentals of meta-analyses. (United States)

    Brusselaers, Nele


    Conducting meta-analyses is an exciting and rewarding way of summarizing and quantifying the current knowledge, which is also becoming increasingly important in clinical research. There are many articles published on interpreting meta-analysis and specific statistical methods, which makes it challenging to obtain an overview, also for teachers and supervisors. The aim of this article is to provide a guide for teaching the fundamentals of meta-analysis, with as goal to improve the quality of published meta-analyses. This article provides tips and key references on how to conduct meta-analyses, based on own research, supervising and teaching experience, mainly working with junior clinical researchers. This article contains up-to-date guidelines, practical examples and recommendations to improve the identification and selection of relevant articles, data-extraction, quality assessment, statistical analyses and presentation and publication of results. Time-saving tips and commonly encountered problems such as heterogeneity and publication bias are also discussed. This article is based on recommendations from world renowned organizations and authors, and covers practical examples and pitfalls. Although conducting meta-analysis may seem complex and difficult, it is also achievable for junior researchers and clinicians. Expert guidance is however recommended to achieve high-quality research. Copyright © 2015 Elsevier Inc. All rights reserved.

  17. Ascorbic acid and microbiological analyses of extra - Cotyledonous ...

    African Journals Online (AJOL)

    Ascorbic acid and microbiological analyses of extra - cotyledonous deposits of Pride of Barbados (Caesalpina pulcherrima) stored at various temperatures were investigated. 2,6 - Dichlorophenolindophenol (dye) solution titration method was used in ascorbic acid determination while Nutrient and Sabouraud agar were ...

  18. A review of bioinformatic methods for forensic DNA analyses. (United States)

    Liu, Yao-Yuan; Harbison, SallyAnn


    Short tandem repeats, single nucleotide polymorphisms, and whole mitochondrial analyses are three classes of markers which will play an important role in the future of forensic DNA typing. The arrival of massively parallel sequencing platforms in forensic science reveals new information such as insights into the complexity and variability of the markers that were previously unseen, along with amounts of data too immense for analyses by manual means. Along with the sequencing chemistries employed, bioinformatic methods are required to process and interpret this new and extensive data. As more is learnt about the use of these new technologies for forensic applications, development and standardization of efficient, favourable tools for each stage of data processing is being carried out, and faster, more accurate methods that improve on the original approaches have been developed. As forensic laboratories search for the optimal pipeline of tools, sequencer manufacturers have incorporated pipelines into sequencer software to make analyses convenient. This review explores the current state of bioinformatic methods and tools used for the analyses of forensic markers sequenced on the massively parallel sequencing (MPS) platforms currently most widely used. Copyright © 2017 Elsevier B.V. All rights reserved.

  19. Medical Isotope Production Analyses In KIPT Neutron Source Facility

    Energy Technology Data Exchange (ETDEWEB)

    Talamo, Alberto [Argonne National Lab. (ANL), Argonne, IL (United States); Gohar, Yousry [Argonne National Lab. (ANL), Argonne, IL (United States)


    Medical isotope production analyses in Kharkov Institute of Physics and Technology (KIPT) neutron source facility were performed to include the details of the irradiation cassette and the self-shielding effect. An updated detailed model of the facility was used for the analyses. The facility consists of an accelerator-driven system (ADS), which has a subcritical assembly using low-enriched uranium fuel elements with a beryllium-graphite reflector. The beryllium assemblies of the reflector have the same outer geometry as the fuel elements, which permits loading the subcritical assembly with different number of fuel elements without impacting the reflector performance. The subcritical assembly is driven by an external neutron source generated from the interaction of 100-kW electron beam with a tungsten target. The facility construction was completed at the end of 2015, and it is planned to start the operation during the year of 2016. It is the first ADS in the world, which has a coolant system for removing the generated fission power. Argonne National Laboratory has developed the design concept and performed extensive design analyses for the facility including its utilization for the production of different radioactive medical isotopes. 99Mo is the parent isotope of 99mTc, which is the most commonly used medical radioactive isotope. Detailed analyses were performed to define the optimal sample irradiation location and the generated activity, for several radioactive medical isotopes, as a function of the irradiation time.

  20. Limitations of the MMS-10 tympanic displacement analyser

    NARCIS (Netherlands)

    Rosingh, HJ; Wit, HP


    Using the MMS-10 tympanic displacement analyser, the test-retest variation was determined in 20 normal hearing ears (ten subjects) for the measurement parameters Vi and Vm. Variations were found to be on average 60 nl for Vi and 72 nl for Vm. The consequences of these substantial test-retest

  1. Comparative Analyses of Discourse in Specialized STEM School Classes (United States)

    Tofel-Grehl, Colby; Callahan, Carolyn M.; Nadelson, Louis S.


    The authors detail the discourse patterns observed within mathematics and science classes at specialized STEM (science, technology, engineering, and mathematics) high schools. Analyses reveal that teachers in mathematics classes tended to engage their students in authoritative discourse while teachers in science classes tended to engage students…

  2. SWORDS: A statistical tool for analysing large DNA sequences

    Indian Academy of Sciences (India)

    In this article, we present some simple yet effective statistical techniques for analysing and comparing large DNA sequences. These techniques are based on frequency distributions of DNA words in a large sequence, and have been packaged into a software called SWORDS. Using sequences available in public domain ...

  3. Analyse de la distribution spatiale des Acanthaceae en Afrique ...

    African Journals Online (AJOL)


    Analyse de la distribution spatiale des Acanthaceae en Afrique Centrale et comparaison avec les théories phytogéographiques de Robyns,. White et Ndjele. Kouao J. KOFFI 1*, Dominique CHAMPLUVIER 2, Danho F. R. NEUBA 3, Charles DE CANNIERE 1, Traoré DOSSAHOUA 4,. Jean LEJOLY 1, Elmar ROBBRECHT 2 ...

  4. Human identification & forensic analyses of degraded or low level DNA

    NARCIS (Netherlands)

    Westen, Antoinette-Andrea


    DNA-based human identification is employed in varying situations, such as disaster victim identification, relationship testing and forensic analyses. When DNA is of low quality and/or quantity, standard methods for DNA profiling may not suffice. The research described in this thesis is aimed at the

  5. Structural and gene expression analyses of uptake hydrogenases ...

    Indian Academy of Sciences (India)

    These include the expression of oxygen-scavenging uptake hydrogenases, the formation of hopanoid-rich vesicles, enclosed by multi-layered hopanoid structures, the lignification of hyphal cell walls, and the production of haemoglobins in the symbiotic nodule. In this work, we analysed the expression and structure of the ...

  6. More than a festival: analysing opinion-forming sports journalists ...

    African Journals Online (AJOL)

    The interviews were transcribed verbatim using the GAT-2 minimal transcriptional style and analysed with the qualitative analysis style of content structuring of Mayring. Journalists' perceptions of this research topic have not yet been investigated. Five research questions were formulated based on the literature review.

  7. Race, Gender, and Reseacher Positionality Analysed Through Memory Work

    DEFF Research Database (Denmark)

    Andreassen, Rikke; Myong, Lene


    Drawing upon feminist standpoint theory and memory work, the authors analyse racial privilege by investigating their own racialized and gendered subjectifications as academic researchers. By looking at their own experiences within academia, they show how authority and agency are contingent upon...

  8. Finite element analyses of wood laminated composite poles (United States)

    Cheng Piao; Todd F. Shupe; R.C. Tang; Chung Y. Hse


    Finite element analyses using ANSYS were conducted on orthotropic, polygonal, wood laminated composite poles subjected to a body force and a concentrated load at the free end. Deflections and stress distributions of small-scale and full-size composite poles were analyzed and compared to the results obtained in an experimental study. The predicted deflection for both...

  9. Analyses of Small-Scale Turkey Production in Owerri Agricultural ...

    African Journals Online (AJOL)

    The purpose of this study was to analyse small scale turkey production in Imo State of Nigeria. Owerri agricultural zone of Imo State harbours most of the urban cities with large population thus providing greatest market for turkey in the area. Fifty farmers in turkey production constituted sample size for this study. The data ...

  10. Analysing Self Interference Cancellation in Full Duplex Radios

    DEFF Research Database (Denmark)

    Mahmood, Nurul Huda; Shafique Ansari, Imran; Berardinelli, Gilberto


    cancellation. In this study, we derive an analytical model for the residual self interference power, and demonstrate various applications of the derived model in analysing the performance of a Full Duplex radio. In general, full duplex communication is found to provide only modest throughput gains over half...

  11. A bromine-based dichroic X-ray polarization analyser

    CERN Document Server

    Collins, S P; Brown, S D; Thompson, P


    We have demonstrated the advantages offered by dichroic X-ray polarization filters for linear polarization analysis, and describe such a device, based on a dibromoalkane/urea inclusion compound. The polarizer has been successfully tested by analysing the polarization of magnetic diffraction from holmium.

  12. Classification and expression analyses of homeobox genes from ...

    Indian Academy of Sciences (India)

    Supplementary figure 2. Domain architecture analyses of the 14 homeodomain containing proteins from D. discoideum. These were derived using the online software SMART with Pfam database. The domains present in each protein are shown with their respective genomic positions. The figure is not drawn up to the scale.

  13. Analysing hierarchy in the organization of biological and physical systems

    NARCIS (Netherlands)

    Jagers op Akkerhuis, G.A.J.M.


    A structured approach is discussed for analysing hierarchy in the organization of biological and physical systems. The need for a structured approach follows from the observation that many hierarchies in the literature apply conflicting hierarchy rules and include ill-defined systems. As an

  14. Phospholipid and Respiratory Quinone Analyses From Extreme Environments (United States)

    Pfiffner, S. M.


    Extreme environments on Earth have been chosen as surrogate sites to test methods and strategies for the deployment of space craft in the search for extraterrestrial life. Surrogate sites for many of the NASA astrobiology institutes include the South African gold mines, Canadian subpermafrost, Atacama Desert, and acid rock drainage. Soils, sediments, rock cores, fracture waters, biofilms, and service and drill waters represent the types of samples collected from these sites. These samples were analyzed by gas chromatography mass spectrometry for phospholipid fatty acid methyl esters and by high performance liquid chromatography atmospheric pressure chemical ionization tandem mass spectrometry for respiratory quinones. Phospholipid analyses provided estimates of biomass, community composition, and compositional changes related to nutritional limitations or exposure to toxic conditions. Similar to phospholipid analyses, respiratory quinone analyses afforded identification of certain types of microorganisms in the community based on respiration and offered clues to in situ redox conditions. Depending on the number of samples analyzed, selected multivariate statistical methods were applied to relate membrane lipid results with site biogeochemical parameters. Successful detection of life signatures and refinement of methodologies at surrogate sites on Earth will be critical for the recognition of extraterrestrial life. At this time, membrane lipid analyses provide useful information not easily obtained by other molecular techniques.

  15. RESEARCH NOTE Genetic Analyses for Deciphering the Status and ...

    Indian Academy of Sciences (India)

    Genetic Analyses for Deciphering the Status and Role of Photoperiodic and Maturity. Genes in major Indian Soybean Cultivars. Sanjay Gupta1*, Virendra Singh Bhatia1, Giriraj Kumawat1, Devshree Thakur2, Gourav Singh1,. Rachana Tripathi1&3, Gyanesh Satpute1, Ramgopal Devadas4, Sayed Masroor Husain1 and ...

  16. Engineering analyses of large precision cathode strip chambers for GEM

    Energy Technology Data Exchange (ETDEWEB)

    Horvath, J.A.; Belser, F.C.; Pratuch, S.M.; Wuest, C.R. [Lawrence Livermore National Lab., CA (United States); Mitselmakher, G. [Superconducting Super Collider Lab., Dallas, TX (United States); Gordeev, A. [Institute of Theoretical and Experimental Physics, Moscow (Russian Federation); Johnson, C.V. [Lawrence Livermore National Lab., CA (United States)]|[Superconducting Super Collider Lab., Dallas, TX (United States); Polychronakos, V.A. [Brookhaven National Lab., Upton, NY (United States); Golutvin, I.A. [Joint Institute for Nuclear Research, Dubna (Russian Federation)


    Structural analyses of large precision cathode strip chambers performed up to the date of this publication are documented. Mechanical property data for typical chamber materials are included. This information, originally intended to be an appendix to the {open_quotes}CSC Structural Design Bible,{close_quotes} is presented as a guide for future designers of large chambers.

  17. Persuading Collaboration: Analysing Persuasion in Online Collaboration Projects

    DEFF Research Database (Denmark)

    McHugh, Ronan; Larsen, Birger


    In this paper we propose that online collaborative production sites can be fruitfully analysed in terms of the general theoretical framework of Persuasive Design. OpenStreetMap and The Pirate Bay are used as examples of collaborative production sites. Results of a quantitative analysis...

  18. A Semantic and Pragmatic Analyses of Igbo Names | Onumajuru ...

    African Journals Online (AJOL)

    The paper investigated the semantic and pragmatic contents of personal names and naming in the Igbo language and culture. The objective of the paper was to examine the structure of Igbo names and analyse their semantic and pragmatic contents. The data were sourced from Igbo language speakers in the South Eastern ...

  19. Expertise of Team Leaders in Analysing Team Conflicts (United States)

    Rupprecht, Maria; Strasser, Josef; Gruber, Hans; Harteis, Christian


    Team leaders are expected to adequately analyse team conflicts. Both content and analytical depth of cognitive processes determine team leaders' performance and are assumed to differ with level of expertise. A study is reported in which team leaders at four different levels of expertise (novices, semi-experts, experts, mediators) were compared in…

  20. Systematic realisation of control flow analyses for CML

    DEFF Research Database (Denmark)

    Gasser, K.L.S.; Nielson, Flemming; Nielson, Hanne Riis


    We present a methodology for the systematic realisation of control flow analyses and illustrate it for Concurrent ML. We start with an abstract specification of the analysis that is next proved semantically sound with respect to a traditional small-step operational semantics; this result holds...

  1. Bragg prism monochromator and analyser for super ultra-small ...

    Indian Academy of Sciences (India)

    exits the side face in the diffracted beam direction. A judicious choice of the. Bragg reflection, its asymmetry, and the apex angle A for the prism can make. dδH cr /dθ approach −1. The single crystal prism then produces a neutron beam with sub-arcsec collimation. The analyser can likewise be designed to accept an.

  2. A Review of Empirical Analyses of Disinvestment Initiatives. (United States)

    Chambers, James D; Salem, Mark N; D'Cruz, Brittany N; Subedi, Prasun; Kamal-Bahl, Sachin J; Neumann, Peter J

    Disinvesting in low-value health care services provides opportunities for investment in higher value care and thus an increase in health care efficiency. To identify international experience with disinvestment initiatives and to review empirical analyses of disinvestment initiatives. We performed a literature search using the PubMed database to identify international experience with disinvestment initiatives. We also reviewed empirical analyses of disinvestment initiatives. We identified 26 unique disinvestment initiatives implemented across 11 countries. Nineteen addressed multiple intervention types, six addressed only drugs, and one addressed only devices. We reviewed 18 empirical analyses of disinvestment initiatives: 7 reported that the initiative was successful, 8 reported that the initiative was unsuccessful, and 3 reported that findings were mixed; that is, the study considered multiple services and reported a decrease in the use of some but not others. Thirty-seven low-value services were evaluated across the 18 empirical analyses, for 14 (38%) of which the disinvestment initiative led to a decline in use. Six of the seven studies that reported the disinvestment initiative to be successful included an attempt to promote the disinvestment initiative among participating clinicians. The success of disinvestment initiatives has been mixed, with fewer than half the identified empirical studies reporting that use of the low-value service was reduced. Our findings suggest that promotion of the disinvestment initiative among clinicians is a key component to the success of the disinvestment initiative. Copyright © 2017 International Society for Pharmacoeconomics and Outcomes Research (ISPOR). Published by Elsevier Inc. All rights reserved.

  3. Weight analyses and nitrogen balance assay in rats fed extruded ...

    African Journals Online (AJOL)

    Weight analyses and nitrogen balance assay in adult rats in raw and extruded African breadfruit (Treculia africana) based diets were carried out using response surface methodology in a central composite design. Process variables were feed composition (40 - 100 % African breadfruit, 0 - 5 % corn and 0 - 55 % soybean, ...

  4. 61 analyse des modes de coordination inter-organisationnelle cas ...

    African Journals Online (AJOL)

    environnement et ... analyse descriptive (description des profils des entreprises échantillo- nnées) et explicative (mise en relation des .... des projets communs et de finalités partagées dans la mobilisation des parties prenantes, à la réalisation des ...

  5. A Calculus for Modelling, Simulating and Analysing Compartmentalized Biological Systems

    DEFF Research Database (Denmark)

    Mardare, Radu Iulian; Ihekwaba, Adoha


    A. Ihekwaba, R. Mardare. A Calculus for Modelling, Simulating and Analysing Compartmentalized Biological Systems. Case study: NFkB system. In Proc. of International Conference of Computational Methods in Sciences and Engineering (ICCMSE), American Institute of Physics, AIP Proceedings, N 2...

  6. Analyse Verpakkingsafval in 1993 ter Monitoring van het Convenant Verpakkingen

    NARCIS (Netherlands)

    Hanemaayer AH; Joosten JM; LAE


    Article 18 of the Dutch Packaging Covenant mentiones a monitoring system that will have to be set up to check the progress made in realizing the objectives laid down in this covenant. The RIVM/LAE (Laboratory for Waste Materials and Emissions) was asked to carry out the output analyses as a part of

  7. Analyse Verpakkingsafval in 1994 (ter Monitoring van het Convenant Verpakkingen)

    NARCIS (Netherlands)

    Hanemaayer AH; Joosten JM; LAE


    Article 18 of the Dutch Packaging Covenant mentions a monitoring system that will have to be set up to check on the progress made in realizing the objectives laid down in this Covenant. The RIVM's Laboratory for Waste Materials and Emissions was asked to carry out the output analyses as a part of

  8. Phylogenetic and molecular evolutionary analyses of Ty1-copia ...

    African Journals Online (AJOL)

    The Ty1-copia group retrotransposons have been characterized in cultivated Egyptian cotton, G.barbadense L., using degenerate PCR primers for their reverse transcriptase (RT) domains. Comparative nucleotide and amino acid sequences analyses showed that G. barbadense Ty1-copia RT sequences are heterogeneous ...

  9. Statistical analyses of Global U-Pb Database 2017

    Directory of Open Access Journals (Sweden)

    Stephen J. Puetz


    Full Text Available The method of obtaining zircon samples affects estimation of the global U-Pb age distribution. Researchers typically collect zircons via convenience sampling and cluster sampling. When using these techniques, weight adjustments proportional to the areas of the sampled regions improve upon unweighted estimates. Here, grid-area and modern sediment methods are used to weight the samples from a new database of 418,967 U-Pb ages. Preliminary tests involve two age models. Model-1 uses the most precise U-Pb ages as the best ages. Model-2 uses the 206Pb/238U age as the best age if it is less than a 1000 Ma cutoff, otherwise it uses the 207Pb/206Pb age as the best age. A correlation analysis between the Model-1 and Model-2 ages indicates nearly identical distributions for both models. However, after applying acceptance criteria to include only the most precise analyses with minimal discordance, a histogram of the rejected samples shows excessive rejection of the Model-2 analyses around the 1000 Ma cutoff point. Because of the excessive rejection rate for Model-2, we select Model-1 as the preferred model. After eliminating all rejected samples, the remaining analyses use only Model-1 ages for five rock-type subsets of the database: igneous, meta-igneous, sedimentary, meta-sedimentary, and modern sediments. Next, time-series plots, cross-correlation analyses, and spectral analyses determine the degree of alignment among the time-series and their periodicity. For all rock types, the U-Pb age distributions are similar for ages older than 500 Ma, but align poorly for ages younger than 500 Ma. The similarities (>500 Ma and differences (<500 Ma highlight how reductionism from a detailed database enhances understanding of time-dependent sequences, such as erosion, detrital transport mechanisms, lithification, and metamorphism. Time-series analyses and spectral analyses of the age distributions predominantly indicate a synchronous period-tripling sequence

  10. MARLIN, software to create, run, and analyse spatially realistic simulations. (United States)

    Meirmans, Patrick G


    MARLIN is a software to create, run, analyse, and visualize spatially explicit population genetic simulations. It provides an intuitive user interface with which the geographical layout of a metapopulation can be drawn by hand or loaded from a map. Furthermore, the interface allows easy selection of the many different simulation settings. MARLIN then uses the program QuantiNemo to run the simulation in the background. When simulations are finished, MARLIN directly analyses and plots the results, thereby greatly simplifying the simulation workflow. This combination of simulation and analysis makes MARLIN ideal for teaching and for scientists who are interested in doing simulations without having to learn command-line operations. MARLIN is available for computers running Mac OS X and can be downloaded from: © 2010 Blackwell Publishing Ltd.

  11. Analysing Incentive and Cost Sharing Issues in Livestock Disease Management

    DEFF Research Database (Denmark)

    Biira, Juliet

    of the farm. One key take away from this study is that many farmers would accept risk based premium payments. Paper 3 builds upon paper 2 by analysing the willingness to pay for the hypothetical mutual fund using a choice experiment. Results of the mixed logit model show heterogeneity among farmer preferences...... farms according to their risk with respect to introduction of animal diseases. This study uses an empirical methodology of conjoint analysis to quantify the importance of different risk factors. Both expert and farmer opinion was studied. Results indicate that importation stands out as the most....... Paper 5 uses a theoretical approach to analyse the normative foundation of allocation rules that can be used in sharing costs related to animal disease preparedness. We assume that effort incurred by the relevant government authority cannot be observed by the farmers and construct a liability index...

  12. Performance Analyses in an Assistive Technology Service Delivery Process

    DEFF Research Database (Denmark)

    Petersen, Anne Karin

    Technology.In the curriculum in the students fifth term they learn about the assistive technology service delivery process. To make bridge between theory and practice, the students visit a disabled adult who use assistive technology. The students structure their visit by OTIPM and do an assessment......Performance Analyses in an Assistive Technology Service Delivery Process.Keywords: process model, occupational performance, assistive technologiesThe Poster is about teaching students, using models and theory in education and practice. It is related to Occupational therapy process and professional...... reasoning by using OTIPM and performance analyses in an example with an adult with disability The aim is to show how The Occupational Therapy Intervention Process Model (OTIPM) and Assessment of Motor and Process Skills (AMPS) are used in learning principles of assessment and intervention in Assistive...

  13. Analysing Trust Transitivity and The Effects of Unknown Dependence

    Directory of Open Access Journals (Sweden)

    Touhid Bhuiyan


    Full Text Available Trust can be used to improve online automated recommendation within a given domain. Trust transitivity is used to make it successful. But trust transitivity has different interpretations. Trust and trust transitivity; both are the human mental phenomenon and for this reason, there is no such thing as objective transitivity. Trust transitivity and trust fusion both are important elements in computational trust. This paper analyses the parameter dependence problem in trust transitivity and proposes some definitions considering the effects of base rate. In addition, it also proposes belief functions based on subjective logic to analyse trust transitivity of three specified cases with sensitive and insensitive based rate. Then it presents a quantitative analysis of the effects of unknown dependence problem in an interconnected network environment; such Internet.

  14. Analyses of Current And Wave Forces on Velocity Caps

    DEFF Research Database (Denmark)

    Christensen, Erik Damgaard; Buhrkall, Jeppe; Eskesen, Mark C. D.


    leads the water into another pipe or tunnel system. A pressure gradient generated by the water level difference between the sea and basin drives the flow through the tunnel system. The tunnel system is often in the order of a couple kilometers long. Based on CFD analyses (computational fluid dynamics......Velocity caps are often used in connection with for instance offshore intake sea water for the use of for cooling water for power plants or as a source for desalinization plants. The intakes can also be used for river intakes. The velocity cap is placed on top of a vertical pipe. The vertical pipe......) this paper investigates the current and wave forces on the velocity cap and the vertical cylinder. The Morison’s force model was used in the analyses of the extracted force time series in from the CFD model. Further the distribution of the inlet velocities around the velocity cap was also analyzed in detail...

  15. The moral economy of austerity: analysing UK welfare reform. (United States)

    Morris, Lydia


    This paper notes the contemporary emergence of 'morality' in both sociological argument and political rhetoric, and analyses its significance in relation to ongoing UK welfare reforms. It revisits the idea of 'moral economy' and identifies two strands in its contemporary application; that all economies depend on an internal moral schema, and that some external moral evaluation is desirable. UK welfare reform is analysed as an example of the former, with reference to three distinct orientations advanced in the work of Freeden (1996), Laclau (2014), and Lockwood (1996). In this light, the paper then considers challenges to the reform agenda, drawn from third sector and other public sources. It outlines the forms of argument present in these challenges, based respectively on rationality, legality, and morality, which together provide a basis for evaluation of the welfare reforms and for an alternative 'moral economy'. © London School of Economics and Political Science 2016.

  16. The EADGENE and SABRE post-analyses workshop

    DEFF Research Database (Denmark)

    Jaffrezic, Florence; Hedegaard, Jakob; Sancristobal, Magali


    Analysis of genome-wide gene expression using DNA microarrays has become pervasive in almost all areas of biology. The area of biology addressed by this workshop is gene expression studies in livestock looking at transcriptomic differences between treatments as well as genotypes and combinations...... of these. Two years ago, we organized a workshop to discuss the best approaches to analyze two-colour DNA microarray data in our area of research and the outcomes of that workshop have been published in 4 open access publications [ 1 - 4 ]. While there is currently a reasonable amount of consensus...... on the statistical analyses of a microarray experiment (i.e. getting a gene list), the subsequently analysis of the gene list is still an area of much confusion to many scientists. During a three-day workshop in November 2008, we discussed five aspects of these so-called post analyses of microarray data: 1) re...

  17. Neoliberalism in education: Five images of critical analyses

    Directory of Open Access Journals (Sweden)

    Branislav Pupala


    Full Text Available The survey study brings information about the way that educational researchcopes with neoliberalism as a generalized form of social government in the currentwestern culture. It shows that neoliberalism is considered as a universal scope of otherchanges in the basic segments of education and those theoretical and critical analyses ofthis phenomenon represent an important part of production in the area of educationalresearch. It emphasizes the contribution of formation and development of the socalledgovernmental studies for comprehension of mechanisms and consequences ofneoliberal government of the society and shows how way the methodology of thesestudies helps to identify neoliberal strategies used in the regulation of social subjectsby education. There are five selected segments of critical analyses elaborated (fromthe concept of a lifelong learning, through preschool and university education to theeducation of teachers and PISA project that obviously show ideological and theoreticalcohesiveness of the education analysis through the scope of neoliberal governmentality.

  18. Numerical analyses of an aircraft crash on containment building

    Energy Technology Data Exchange (ETDEWEB)

    Sim, Jae Min; Kim, Seung Hyun; Chang, Yoon Suk [Kyunghee University, Yongin (Korea, Republic of)


    The containment building is responsible to isolate and protect internal devices against external conditions like earthquake, hurricane and impact loading. It has also to protect leakage of radioactivity, like LOCA (Loss Of Coolant Accident), when severe accidents occurred. Meanwhile, social awareness such as terrorism has been increased globally after international aircraft crashes at World Trade Center and Pentagon. In this paper, FE (Finite Element) analyses according to variation of crash locations and speeds were carried out to examine the aircraft crash impact on a domestic containment building. In this paper, numerical analyses of aircraft crash on NPP's containment building were performed taking into account different locations and aircraft speeds. (1) Amounts of concrete failure were dependent on the crash locations and the connector was the most delicate location comparing to the dome and wall part. (2) Maximum stress values generated at the liner plate and rebars did not exceed their UTS values.


    Directory of Open Access Journals (Sweden)

    Irene Ully Havsa


    Full Text Available The aim of this paper is to demonstrate the utilisation of a Behavior Tree trace visualiser called BTTrace and generalised LTL formulae patterns to help system analysts analyse counterexamples and generate valuable ones. Counterexample generated by SAL model checker from a Behavior Tree model and an LTL formulae is translated into a BTTrace file. This file is rendered by BTTrace to visualise the counterexample on Behavior Tree diagram in animated fashion. Generalised LTL formulae patterns are exploited using a particular technique to assist analyst on constructing new yet meaningful property formulas. These formulas are used to obtain different and valuable counterexamples for further analysis. It is shown that BTTrace and LTL formulae patterns give significant support for analysing counterexamples of Behavior Tree model.

  20. Metabolomics Analyses of Cancer Cells in Controlled Microenvironments. (United States)

    Gravel, Simon-Pierre; Avizonis, Daina; St-Pierre, Julie


    The tumor microenvironment is a complex and heterogeneous milieu in which cancer cells undergo metabolic reprogramming to fuel their growth. Cancer cell lines grown in vitro using traditional culture methods represent key experimental models to gain a mechanistic understanding of tumor biology. This protocol describes the use of gas chromatography-mass spectrometry (GC-MS) to assess metabolic changes in cancer cells grown under varied levels of oxygen and nutrients that may better mimic the tumor microenvironment. Intracellular metabolite changes, metabolite uptake and release, as well as stable isotope ((13)C) tracer analyses are done in a single experimental setup to provide an integrated understanding of metabolic adaptation. Overall, this chapter describes some essential tools and methods to perform comprehensive metabolomics analyses.

  1. Pollen analyses of Pleistocene hyaena coprolites from Montenegro and Serbia

    Directory of Open Access Journals (Sweden)

    Argant Jacqueline


    Full Text Available The results of pollen analyses of hyaena coprolites from the Early Pleistocene cave of Trlica in northern Montenegro and the Late Pleistocene cave of Baranica in southeast Serbia are described. The Early Pleistocene Pachycrocuta brevirostris, and the Late Pleistocene Crocuta spelaea are coprolite-producing species. Although the pollen concentration was rather low, the presented analyses add considerably to the much-needed knowledge of the vegetation of the central Balkans during the Pleistocene. Pollen extracted from a coprolite from the Baranica cave indicates an open landscape with the presence of steppe taxa, which is in accordance with the recorded conditions and faunal remains. Pollen analysis of the Early Pleistocene samples from Trlica indicate fresh and temperate humid climatic conditions, as well as the co-existence of several biotopes which formed a mosaic landscape in the vicinity of the cave.

  2. Laser induced breakdown spectroscopy for bulk minerals online analyses

    Energy Technology Data Exchange (ETDEWEB)

    Gaft, M.; Sapir-Sofer, I.; Modiano, H.; Stana, R. [LDS, Petah Tiqwa (Israel). Research Dept.


    The purpose of the work was to prove the ability of LIBS to provide on-line analyses for raw ores in field conditions. An industrial LIBS machine was developed and successfully tested for on-belt evaluation of phosphate measuring Mg, Fe, Al, Bone Phosphate Lime (BPL), Insoluble phase and Metal Impurity Ratio (MER) and of coal measuring its ash content. The comparison of LIBS on-line data with control analyses revealed good correlation, which corresponds to the required detection limits and accuracy. With frequent elemental data from a LIBS system, process engineers have the tools to best optimize the process. These processes could be minerals blending and separation to meet customer specifications, monitoring and controlling the efficiency of a minerals process, or a minerals accounting function.

  3. Gestalt und Funktion von Animal Design : Versuch einer semiotischen Analyse


    Schlüter, Wolfgang


    Dissertation zur Gestalt und Funktion von Animal Design (tieranaloges Design). Untersucht wird eine Auswahl an Produkten, die in ihrem Äußeren an Tiere erinnern. Hierbei stehen Aspekte wie die Emotionalisierung von Produkten, demonstrativer Konsum und die soziale Funktion im Fokus der Analyse. Anhand von Abbildungen und Zeichnungen wird u.a. dargestellt, welche Bedeutung die Tiergestalt für das jeweilige Produktdesign hat. Die Objekte werden jeweils unter phänomenologischen, hermeneutischen u...

  4. Acoustic analyses of diadochokinesis in fluent and stuttering children


    Juste, Fabiola Staróbole; Rondon, Silmara; Sassi, Fernanda Chiarion; Ritto, Ana Paula; Colalto, Claudia Aparecida; de Andrade, Claudia Regina Furquim


    OBJECTIVES: The purpose of the study was to acoustically compare the performance of children who do and do not stutter on diadochokinesis tasks in terms of syllable duration, syllable periods, and peak intensity. METHODS: In this case-control study, acoustical analyses were performed on 26 children who stutter and 20 aged-matched normally fluent children (both groups stratified into preschoolers and school-aged children) during a diadochokinesis task: the repetition of articulatory segments t...

  5. Analyses of karyotypes and comparative physical locations of the ...

    African Journals Online (AJOL)

    ... RG556 and the BAC clone, 44B4, were 8.0 and 41.3% in O. sativa, while 9.0 and 42.3% in O. officinalis, respectively. Based on a comparative RFLP map of a wild rice, O. officinalis and O. sativa, comparative analyses of karyotypes of O. officinalis were demonstrated firstly by fluorescent in situ hybridization (FISH) using a ...

  6. Software Tools for Design of Reagents for Multiplex Genetic Analyses


    Stenberg, Johan


    Methods using oligonucleotide probes are powerful tools for the analysis of nucleic acids. During recent years, many such methods have been developed that enable the simultaneous interrogation of multiple qualities of a sample. Many of these multiplexing techniques share common limitations. This thesis discusses new developments to overcome the problems of multiplex amplification of genomic sequences and design of sets of oligonucleotide probes for multiplex genetic analyses. A novel molecula...

  7. Analyses situationnelles de la lutte antitabac en Afrique (ASTA ...

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

    Analyses situationnelles de la lutte antitabac en Afrique (ASTA) - Burkina Faso, Ghana, Malawi et Tanzanie. L'épidémie de tabagisme qui se profile à l'horizon et la menace qu'elle fait planer sur le développement ont poussé la plupart des gouvernements d'Afrique subsaharienne à ratifier la Convention-cadre pour la lutte ...

  8. NAA For Human Serum Analysis: Comparison With Conventional Analyses (United States)

    Oliveira, Laura C.; Zamboni, Cibele B.; Medeiros, José A. G.; Azevedo, Maria R.


    Instrumental and Comparator methods of Neutron Activation Analysis (NAA) were applied to determine elements of clinical relevancy in serum samples of adult population (São Paulo city, Brazil). A comparison with the conventional analyses, Colorimetric for calcium, Titrymetric for chlorine and Ion Specific Electrode for sodium and potassium determination were also performed permitting a discussion about the performance of NAA methods for clinical chemistry research.

  9. Phylogenomic analyses data of the avian phylogenomics project

    DEFF Research Database (Denmark)

    Jarvis, Erich D; Mirarab, Siavash; Aberer, Andre J


    ML algorithm or when using statistical binning with the coalescence-based MP-EST algorithm (which we refer to as MP-EST*). Other data sets, such as the coding sequence of some exons, revealed other properties of genome evolution, namely convergence. CONCLUSIONS: The Avian Phylogenomics Project is the largest...... vertebrate phylogenomics project to date that we are aware of. The sequence, alignment, and tree data are expected to accelerate analyses in phylogenomics and other related areas....

  10. Buckling analyses of composite laminated panels with delamination


    Albiol de Andrés, David


    Buckling response of composite laminated panels with an arti cial delamination was numerically investigated. Implementation of the nite-element models required a previous study on the simulation of fracture mechanisms under general mixed-mode loading conditions with the use of cohesive elements. To pursue this aim, a methodology based on numerical analyses and parametric studies of the DCB (Double Cantilever Beam) and ENF (End Notched Flexure) tests on AS4/PEEK laminates was developed....

  11. Signal analyser, the software support for education of signal processing

    Directory of Open Access Journals (Sweden)

    Tùma Jiøí


    Full Text Available The paper deals with the software that is supporting signal-processing lectures given for students of mechanical engineering. An application, named Signal Analyser is written in Visual Basic 6.0 language so it is working under Windows operating systems. The main idea is to demonstrate spectral analysis of signals that are taken from measurements in industry or synthesised by an incorporate signal generator.

  12. Analyse des caractéristiques structurelles et des performances ...

    African Journals Online (AJOL)

    Objectif : L'étude vise à analyser les caractéristiques structurelles et les performances technico-économiques de la riziculture irriguée en Côte d'Ivoire. Méthodologie et résultats : Un diagnostic socio-économique a été conduit au cours du premier cycle de production de paddy en 2009 et a concerné un échantillon aléatoire ...

  13. GIS baseret analyse af landskabsændringer

    DEFF Research Database (Denmark)

    Kristensen, Søren Bech Pilgaard


    af topografiske kort i en GIS analyse er det muligt at udpege de arealer som har været stabile i mere end 100 år og som derfor potentielt rummer store naturværdier. De seneste 150 år er der sket store ændringer i det danske landskab. Mange ekstensive arealtyper (enge, overdrev, heder, etc.) er gået...

  14. Finite element analyses for seismic shear wall international standard problem

    Energy Technology Data Exchange (ETDEWEB)

    Park, Y.J.; Hofmayer, C.H.


    Two identical reinforced concrete (RC) shear walls, which consist of web, flanges and massive top and bottom slabs, were tested up to ultimate failure under earthquake motions at the Nuclear Power Engineering Corporation`s (NUPEC) Tadotsu Engineering Laboratory, Japan. NUPEC provided the dynamic test results to the OECD (Organization for Economic Cooperation and Development), Nuclear Energy Agency (NEA) for use as an International Standard Problem (ISP). The shear walls were intended to be part of a typical reactor building. One of the major objectives of the Seismic Shear Wall ISP (SSWISP) was to evaluate various seismic analysis methods for concrete structures used for design and seismic margin assessment. It also offered a unique opportunity to assess the state-of-the-art in nonlinear dynamic analysis of reinforced concrete shear wall structures under severe earthquake loadings. As a participant of the SSWISP workshops, Brookhaven National Laboratory (BNL) performed finite element analyses under the sponsorship of the U.S. Nuclear Regulatory Commission (USNRC). Three types of analysis were performed, i.e., monotonic static (push-over), cyclic static and dynamic analyses. Additional monotonic static analyses were performed by two consultants, F. Vecchio of the University of Toronto (UT) and F. Filippou of the University of California at Berkeley (UCB). The analysis results by BNL and the consultants were presented during the second workshop in Yokohama, Japan in 1996. A total of 55 analyses were presented during the workshop by 30 participants from 11 different countries. The major findings on the presented analysis methods, as well as engineering insights regarding the applicability and reliability of the FEM codes are described in detail in this report. 16 refs., 60 figs., 16 tabs.

  15. CPN Tools for Editing, Simulating, and Analysing Coloured Petri Nets

    DEFF Research Database (Denmark)

    Ratzer, Anne Vinter; Wells, Lisa Marie; Lassen, Henry Michael


    elements. The tool features incremental syntax checking and code generation which take place while a net is being constructed. A fast simulator efficiently handles both untimed and timed nets. Full and partial state spaces can be generated and analysed, and a standard state space report contains...... information such as boundedness properties and liveness properties. The functionality of the simulation engine and state space facilities are similar to the corresponding components in Design/CPN, which is a widespread tool for Coloured Petri Nets....

  16. Analyse Agro-Morphologique De Deux Lignees De Soja ( Glycine ...

    African Journals Online (AJOL)

    ... à travers des critères agro-morphologiques dans le but de contribuer à la sélection des plus performantes. Les résultats de l\\'analyse en composante principale effectuée à partir de 13 variables ont permis de distinguer trois groupes. Le groupe 1 provient essentiellement du Brésil tandis que les deux derniers du Nigeria.

  17. Analyse diagnostique des systemes de culture en riziculture de bas ...

    African Journals Online (AJOL)

    Analyse diagnostique des systemes de culture en riziculture de bas-fonds a Gagnoa, au centre ouest de la Cote d'Ivoire. ... Les rendements, encore faibles, variaient entre 1,53 et 1,70 t/ha, respectivement, en riziculture de bas-fond non aménagé (sans irrigation) et en riziculture de basfond aménagé (avec irrigation).

  18. Analyse comparative des systemes de production du coton ...

    African Journals Online (AJOL)

    Cet article fait une analyse économique de deux systèmes de production du coton au Bénin à savoir, le coton biologique et le coton conventionnel. Pour ce faire une brève description des caractéristiques technico-économiques de chacun des deux types de cultures a été présentée. En utilisant les données collectées lors ...

  19. Kemisk analyse af slim fra Helix aspersa Maxima


    Hansen, Stine Fredslund; Keller, Malene Billeskov; Paustian, Jeanne


    For many years it has been assumed that snails and their mucus posses healing properties. Ancient records show that many cultures have used various preparations of snails for medical purposes. In recent years, snail slime has been used in skin care products thereby increasing the economical and commercial interest in snail mucus. Since the composition of the mucus is unknown, this project aims to analyse the composition of mucus from the land snail Helix aspersa Maxima. The method...

  20. A Web-based Tool Combining Different Type Analyses

    DEFF Research Database (Denmark)

    Henriksen, Kim Steen; Gallagher, John Patrick


    of both, and they can be goal-dependent or goal-independent. We describe a prototype tool that can be accessed from a web browser, allowing various type analyses to be run. The first goal of the tool is to allow the analysis results to be examined conveniently by clicking on points in the original program...... the minimal "domain model" of the program with respect to the corresponding pre-interpretation, which can give more precise information than the original descriptive type....

  1. Event-Flow Graphs for Efficient Path-Sensitive Analyses


    Tamrawi, Ahmed; Kothari, Suresh


    Efficient and accurate path-sensitive analyses pose the challenges of: (a) analyzing an exponentially-increasing number of paths in a control-flow graph (CFG), and (b) checking feasibility of paths in a CFG. We address these challenges by introducing an equivalence relation on the CFG paths to partition them into equivalence classes. It is then sufficient to perform analysis on these equivalence classes rather than on the individual paths in a CFG. This technique has two major advantages: (a)...

  2. Introduction à l'Analyse Numérique


    Hairer, Ernst; Wanner, Gerhard


    Polycopies du cours "Analyse Numérique" Chapitre I. Intégration Numérique Chapitre II. Interpolation et Approximation Chapitre III. Equations Différentielles Ordinaires Chapitre IV. Systèmes d'Equations Linéaires Chapitre V. Valeurs et Vecteurs Propres Chapitre VI. Méthodes Itératives - Equations Non Linéaires Chapitre VII. Travaux pratiques (FORTRAN 90/95)

  3. How the ability to analyse tendencies influences decision satisfaction


    Joao Carneiro; Diogo Martinho; Luís Conceição; Goreti Marreiros; Paulo Novais


    Using agents to represent decision-makers is a complex task. It is important that agents can understand the context and be more proactive. Here we propose a model and an algorithm that will allow the agent to analyse tendencies regarding the number of supporters for each alternative along the process. It is intended that agents can be more dynamic and intelligent and can evaluate different contexts throughout the decision-making process. We believe agents will achieve better and consensual de...

  4. The availability of toxicological analyses for poisoned patients in Ireland.

    LENUS (Irish Health Repository)

    Cassidy, Nicola


    The National Poisons Information Service and the Association of Clinical Biochemists in the United Kingdom published guidelines on laboratory analyses for poisoned patients in 2002. In 2003, U.S. guidelines were prepared by an expert panel of analytical toxicologists and emergency department (ED) physicians. Some professional associations in different countries quote these guidelines but there are no data to support adherence to these recommendations in the medical literature.

  5. Regroupement des statistiques sur le secteur des TIC et analyse ...

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

    Regroupement des statistiques sur le secteur des TIC et analyse axée sur les politiques. La présence et l'influence des technologies de l'information et de la communication (TIC) continuent de s'élargir et de s'accroître, tout comme leurs répercussions sur le développement économique. Toutefois, il reste encore beaucoup ...

  6. Geographic Information Technologies for analysing the digital footprint of tourists


    Hernández, Toni; Sitjar, Josep; Olivella, Rosa; Vicens, Lluís


    Ponencias, comunicaciones y pósters presentados en el 17th AGILE Conference on Geographic Information Science "Connecting a Digital Europe through Location and Place", celebrado en la Universitat Jaume I del 3 al 6 de junio de 2014. As part of a study on the use of the city by visitors, this paper discusses the technical solution adopted in order to analyse and exploit the geo-digital footprint generated by the said visitors using GPS devices.

  7. Effect of two disinfectant treatments on laboratory analyses.


    Ball, M J


    Inactivation of human immunodeficiency virus (HIV), the retrovirus associated with the acquired immune deficiency syndrome (AIDS), can be achieved both by heating at 56 degrees C and by chemical disinfection with beta-propiolactone (BPL). Such treatment of specimens from patients with suspected AIDS or antibodies to HIV could reduce any occupational risk to laboratory staff. This study demonstrates the effects of these treatments on laboratory analyses. Heat treatment of plasma caused clinica...

  8. Authenticiteit en contracteren omtrent kunst : een rechtsvergelijkende analyse.


    Demarsin, Bert


    JURIDISCH-TECHNISCHE TOELICHTING Dit proefschrift is opgebouwd in drie delen. Deel I biedt een interdisciplinair onderzoek naar het authenticiteitsbegrip dat niet alleen vanuit juridisch, maar ook vanuit kunsthistorisch en filosofisch oogpunt ontleed wordt. Delen II en III bouwen vervolgens verder op het aldus ontwikkelde begrippenapparaat. Deel II richt zich op de authenticiteitsproblematiek in de rechtstreekse verhouding tussen de koper en de verkoper van een kunstvoorwerp. De analyse ...

  9. Analyse Des Perceptions Locales Et Des Facteurs Determinant L ...

    African Journals Online (AJOL)

    Une Analyse en Composantes Principales a été appliquée à la matrice des données de fréquences des organes utilisés. Une régression logistique binaire a été utilisée pour identifier les facteurs déterminant le souhait des populations à cultiver J. curcas. Les résultats ont montré que les populations locales consentissent ...

  10. Linking material and energy flow analyses and social theory

    Energy Technology Data Exchange (ETDEWEB)

    Schiller, Frank [The Open University, Faculty of Maths, Computing and Technology, Walton Hall, Milton Keynes, MK7 6AA (United Kingdom)


    The paper explores the potential of Habermas' theory of communicative action to alter the social reflexivity of material and energy flow analysis. With his social macro theory Habermas has provided an alternative, critical justification for social theory that can be distinguished from economic libertarianism and from political liberalism. Implicitly, most flow approaches draw from these theoretical traditions rather than from discourse theory. There are several types of material and energy flow analyses. While these concepts basically share a system theoretical view, they lack a specific interdisciplinary perspective that ties the fundamental insight of flows to disciplinary scientific development. Instead of simply expanding micro-models to the social macro-dimension social theory suggests infusing the very notion of flows to the progress of disciplines. With regard to the functional integration of society, material and energy flow analyses can rely on the paradigm of ecological economics and at the same time progress the debate between strong and weak sustainability within the paradigm. However, placing economics at the centre of their functional analyses may still ignore the broader social integration of society, depending on their pre-analytic outline of research and the methods used. (author)

  11. Effects of undetected data quality issues on climatological analyses (United States)

    Hunziker, Stefan; Brönnimann, Stefan; Calle, Juan; Moreno, Isabel; Andrade, Marcos; Ticona, Laura; Huerta, Adrian; Lavado-Casimiro, Waldo


    Systematic data quality issues may occur at various stages of the data generation process. They may affect large fractions of observational datasets and remain largely undetected with standard data quality control. This study investigates the effects of such undetected data quality issues on the results of climatological analyses. For this purpose, we quality controlled daily observations of manned weather stations from the Central Andean area with a standard and an enhanced approach. The climate variables analysed are minimum and maximum temperature and precipitation. About 40 % of the observations are inappropriate for the calculation of monthly temperature means and precipitation sums due to data quality issues. These quality problems undetected with the standard quality control approach strongly affect climatological analyses, since they reduce the correlation coefficients of station pairs, deteriorate the performance of data homogenization methods, increase the spread of individual station trends, and significantly bias regional temperature trends. Our findings indicate that undetected data quality issues are included in important and frequently used observational datasets and hence may affect a high number of climatological studies. It is of utmost importance to apply comprehensive and adequate data quality control approaches on manned weather station records in order to avoid biased results and large uncertainties.

  12. M-CGH: Analysing microarray-based CGH experiments

    Directory of Open Access Journals (Sweden)

    Meza-Zepeda Leonardo A


    Full Text Available Abstract Background Microarray-based comparative genomic hybridisation (array CGH is a technique by which variation in relative copy numbers between two genomes can be analysed by competitive hybridisation to DNA microarrays. This technology has most commonly been used to detect chromosomal amplifications and deletions in cancer. Dedicated tools are needed to analyse the results of such experiments, which include appropriate visualisation, and to take into consideration the physical relation in the genome between the probes on the array. Results M-CGH is a MATLAB toolbox with a graphical user interface designed specifically for the analysis of array CGH experiments, with multiple approaches to ratio normalization. Specifically, the distributions of three classes of DNA copy numbers (gains, normal and losses can be estimated using a maximum likelihood method. Amplicon boundaries are computed by either the fuzzy K-nearest neighbour method or a wavelet approach. The program also allows linking each genomic clone with the corresponding genomic information in the Ensembl database Conclusions M-CGH, which encompasses the basic tools needed for analysing array CGH experiments, is freely available for academics, and does not require any other MATLAB toolbox.

  13. Multivariate differential analyses of adolescents' experiences of aggression in families

    Directory of Open Access Journals (Sweden)

    Chris Myburgh


    Full Text Available Aggression is part of South African society and has implications for the mental health of persons living in South Africa. If parents are aggressive adolescents are also likely to be aggressive and that will impact negatively on their mental health. In this article the nature and extent of adolescents' experiences of aggression and aggressive behaviour in the family are investigated. A deductive explorative quantitative approach was followed. Aggression is reasoned to be dependent on aspects such as self-concept, moral reasoning, communication, frustration tolerance and family relationships. To analyse the data from questionnaires of 101 families (95 adolescents, 95 mothers and 91 fathers Cronbach Alpha, various consecutive first and second order factor analyses, correlations, multiple regression, MANOVA, ANOVA and Scheffè/ Dunnett tests were used. It was found that aggression correlated negatively with the independent variables; and the correlations between adolescents and their parents were significant. Regression analyses indicated that different predictors predicted aggression. Furthermore, differences between adolescents and their parents indicated that the experienced levels of aggression between adolescents and their parents were small. Implications for education are given.

  14. Structural analyses and integrated design of the MITICA Injector assembly

    Energy Technology Data Exchange (ETDEWEB)

    Mazzucco, G., E-mail: [Department ICEA, Università degli Studi di Padova (Italy); Muraro, D.; Salomoni, V.; Majorana, C. [Department ICEA, Università degli Studi di Padova (Italy); Marcuzzi, D.; Rigato, W.; Sonato, P.; Zaccaria, P.; Toigo, V. [Consorzio RFX, Associazione EURATOM-ENEA sulla Fusione, Corso Stati Uniti 4, I-35127 Padova (Italy); Inoue, T.; Takemoto, J.; Tobari, H.; Tsuchida, K.; Yamanaka, H.; Watanabe, K. [Japan Atomic Energy Agency, 801-1 Mukoyama, Naka, Ibaraki-ken 311-0193 (Japan)


    Highlights: ► Seismic design has been carried out on PRIMA building. ► Three-dimensional FE models have been developed the vessel and TL device. ► Three bellows stiffness have been considered to evaluate maximum TL displacements. -- Abstract: In the framework of the activities foreseen for PRIMA (Padova Research on Injector Megavolt Accelerated) the MITICA neutral beam injector plays the role of main experiment, aiming to build, operate, test and optimize a full power and full scale prototype of the ITER Heating Neutral Beam Injector [1–3]. The entire MITICA system will be housed in special buildings, suitably designed to provide all the necessary supports, interfaces and shielding walls for nuclear radiation safety. Therefore an integrated design of the MITICA system and relevant buildings shall be developed and verified carefully, considering all the different configurations, operational modes and load combinations. This paper presents the numerical models and the results of MITICA assembly integrated analyses. The model takes into account properly constraints to ground and surrounding buildings, to study and verify the static and seismic response of the whole assembly. The load cases are defined and the numerical analyses described. Load definition and analyses have been performed considering the requirements of both the ASME [4] and the National Standard NTC2008 [5] for the seismic verification of structures subject to design response spectra. The obtained results are finally shown in detail and discussed, also comparing some different design options for design optimization.

  15. Pegasys: software for executing and integrating analyses of biological sequences. (United States)

    Shah, Sohrab P; He, David Y M; Sawkins, Jessica N; Druce, Jeffrey C; Quon, Gerald; Lett, Drew; Zheng, Grace X Y; Xu, Tao; Ouellette, B F Francis


    We present Pegasys--a flexible, modular and customizable software system that facilitates the execution and data integration from heterogeneous biological sequence analysis tools. The Pegasys system includes numerous tools for pair-wise and multiple sequence alignment, ab initio gene prediction, RNA gene detection, masking repetitive sequences in genomic DNA as well as filters for database formatting and processing raw output from various analysis tools. We introduce a novel data structure for creating workflows of sequence analyses and a unified data model to store its results. The software allows users to dynamically create analysis workflows at run-time by manipulating a graphical user interface. All non-serial dependent analyses are executed in parallel on a compute cluster for efficiency of data generation. The uniform data model and backend relational database management system of Pegasys allow for results of heterogeneous programs included in the workflow to be integrated and exported into General Feature Format for further analyses in GFF-dependent tools, or GAME XML for import into the Apollo genome editor. The modularity of the design allows for new tools to be added to the system with little programmer overhead. The database application programming interface allows programmatic access to the data stored in the backend through SQL queries. The Pegasys system enables biologists and bioinformaticians to create and manage sequence analysis workflows. The software is released under the Open Source GNU General Public License. All source code and documentation is available for download at

  16. Imperfection Insensitivity Analyses of Advanced Composite Tow-Steered Shells (United States)

    Wu, K. Chauncey; Farrokh, Babak; Stanford, Bret K.; Weaver, Paul M.


    Two advanced composite tow-steered shells, one with tow overlaps and another without overlaps, were previously designed, fabricated and tested in end compression, both without cutouts, and with small and large cutouts. In each case, good agreement was observed between experimental buckling loads and supporting linear bifurcation buckling analyses. However, previous buckling tests and analyses have shown historically poor correlation, perhaps due to the presence of geometric imperfections that serve as failure initiators. For the tow-steered shells, their circumferential variation in axial stiffness may have suppressed this sensitivity to imperfections, leading to the agreement noted between tests and analyses. To investigate this further, a numerical investigation was performed in this study using geometric imperfections measured from both shells. Finite element models of both shells were analyzed first without, and then, with measured imperfections that were then, superposed in different orientations around the shell longitudinal axis. Small variations in both the axial prebuckling stiffness and global buckling load were observed for the range of imperfections studied here, which suggests that the tow steering, and resulting circumferentially varying axial stiffness, may result in the test-analysis correlation observed for these shells.

  17. Process improvement for regulatory analyses of custom-blend fertilizers. (United States)

    Wegner, Keith A


    Chemical testing of custom-blend fertilizers is essential to ensure that the products meet the formulation requirements. For purposes of proper crop nutrition and consumer protection, regulatory oversight promotes compliance and particular attention to blending and formulation specifications. Analyses of custom-blend fertilizer products must be performed and reported within a very narrow window in order to be effective. The Colorado Department of Agriculture's Biochemistry Laboratory is an ISO 17025 accredited facility and conducts analyses of custom-blend fertilizer products primarily during the spring planting season. Using the Lean Six Sigma (LSS) process, the Biochemistry Laboratory has reduced turnaround times from as much as 45 days to as little as 3 days. The LSS methodology focuses on waste reduction through identifying: non-value-added steps, unneeded process reviews, optimization of screening and confirmatory analyses, equipment utilization, nonessential reporting requirements, and inefficient personnel deployment. Eliminating these non-value-added activities helped the laboratory significantly shorten turnaround time and reduce costs. Key improvement elements discovered during the LSS process included: focused sample tracking, equipment redundancy, strategic supply stocking, batch size optimization, critical sample paths, elimination of nonessential QC reviews, and more efficient personnel deployment.

  18. Division of Labor in Vocabulary Structure: Insights From Corpus Analyses. (United States)

    Christiansen, Morten H; Monaghan, Padraic


    Psychologists have used experimental methods to study language for more than a century. However, only with the recent availability of large-scale linguistic databases has a more complete picture begun to emerge of how language is actually used, and what information is available as input to language acquisition. Analyses of such "big data" have resulted in reappraisals of key assumptions about the nature of language. As an example, we focus on corpus-based research that has shed new light on the arbitrariness of the sign: the longstanding assumption that the relationship between the sound of a word and its meaning is arbitrary. The results reveal a systematic relationship between the sound of a word and its meaning, which is stronger for early acquired words. Moreover, the analyses further uncover a systematic relationship between words and their lexical categories-nouns and verbs sound differently from each other-affecting how we learn new words and use them in sentences. Together, these results point to a division of labor between arbitrariness and systematicity in sound-meaning mappings. We conclude by arguing in favor of including "big data" analyses into the language scientist's methodological toolbox. Copyright © 2015 Cognitive Science Society, Inc.

  19. Considerations for planning and evaluating economic analyses of telemental health. (United States)

    Luxton, David D


    The economic evaluation of telemental health (TMH) is necessary to inform ways to decrease the cost of delivering care, to improve access to care, and to make decisions about the allocation of resources. Previous reviews of telehealth economic analysis studies have concluded that there are significant methodological deficiencies and inconsistencies that limit the ability to make generalized conclusions about the costs and benefits of telehealth programs. Published economic evaluations specific to TMH are also limited. There are unique factors that influence costs in TMH that are necessary for those who are planning and evaluating economic analyses to consider. The purpose of this review is to summarize the main problems and limitations of published economic analyses, to discuss considerations specific to TMH, and to inform and encourage the economic evaluation of TMH in both the public and private sectors. The topics presented here include perspective of costs, direct and indirect costs, and technology, as well as research methodology considerations. The integration of economic analyses into effectiveness trials, the standardization of outcome measurement, and the development of TMH economic evaluation guidelines are recommended. PsycINFO Database Record (c) 2013 APA, all rights reserved.

  20. Accounting for rate variation among lineages in comparative demographic analyses (United States)

    Hope, Andrew G.; Ho, Simon Y. W.; Malaney, Jason L.; Cook, Joseph A.; Talbot, Sandra L.


    Genetic analyses of contemporary populations can be used to estimate the demographic histories of species within an ecological community. Comparison of these demographic histories can shed light on community responses to past climatic events. However, species experience different rates of molecular evolution, and this presents a major obstacle to comparative demographic analyses. We address this problem by using a Bayesian relaxed-clock method to estimate the relative evolutionary rates of 22 small mammal taxa distributed across northwestern North America. We found that estimates of the relative molecular substitution rate for each taxon were consistent across the range of sampling schemes that we compared. Using three different reference rates, we rescaled the relative rates so that they could be used to estimate absolute evolutionary timescales. Accounting for rate variation among taxa led to temporal shifts in our skyline-plot estimates of demographic history, highlighting both uniform and idiosyncratic evolutionary responses to directional climate trends for distinct ecological subsets of the small mammal community. Our approach can be used in evolutionary analyses of populations from multiple species, including comparative demographic studies.

  1. Social Network Analyses and Nutritional Behavior: An Integrated Modeling Approach

    Directory of Open Access Journals (Sweden)

    Alistair McNair Senior


    Full Text Available Animals have evolved complex foraging strategies to obtain a nutritionally balanced diet and associated fitness benefits. Recent advances in nutrition research, combining state-space models of nutritional geometry with agent-based models of systems biology, show how nutrient targeted foraging behavior can also influence animal social interactions, ultimately affecting collective dynamics and group structures. Here we demonstrate how social network analyses can be integrated into such a modeling framework and provide a tangible and practical analytical tool to compare experimental results with theory. We illustrate our approach by examining the case of nutritionally mediated dominance hierarchies. First we show how nutritionally explicit agent-based models that simulate the emergence of dominance hierarchies can be used to generate social networks. Importantly the structural properties of our simulated networks bear similarities to dominance networks of real animals (where conflicts are not always directly related to nutrition. Finally, we demonstrate how metrics from social network analyses can be used to predict the fitness of agents in these simulated competitive environments. Our results highlight the potential importance of nutritional mechanisms in shaping dominance interactions in a wide range of social and ecological contexts. Nutrition likely influences social interaction in many species, and yet a theoretical framework for exploring these effects is currently lacking. Combining social network analyses with computational models from nutritional ecology may bridge this divide, representing a pragmatic approach for generating theoretical predictions for nutritional experiments.

  2. Expected net gain data of low-template DNA analyses

    Directory of Open Access Journals (Sweden)

    Simone Gittelson


    Full Text Available Low-template DNA analyses are affected by stochastic effects which can produce a configuration of peaks in the electropherogram (EPG that is different from the genotype of the DNA׳s donor. A probabilistic and decision-theoretic model can quantify the expected net gain (ENG of performing a DNA analysis by the difference between the expected value of information (EVOI and the cost of performing the analysis. This article presents data on the ENG of performing DNA analyses of low-template DNA for a single amplification, two replicate amplifications, and for a second replicate amplification given the result of a first analysis. The data were obtained using amplification kits AmpFlSTR Identifiler Plus and Promega׳s PowerPlex 16 HS, an ABI 3130xl genetic sequencer, and Applied Biosystem׳s GeneMapper ID-X software. These data are supplementary to an original research article investigating whether a forensic DNA analyst should perform a single DNA analysis or two replicate analyses from a decision-theoretic point of view, entitled “Low-template DNA: a single DNA analysis or two replicates?” (Gittelson et al., 2016 [1].

  3. Graphic-based musculoskeletal model for biomechanical analyses and animation. (United States)

    Chao, Edmund Y S


    The ability to combine physiology and engineering analyses with computer sciences has opened the door to the possibility of creating the 'Virtual Human' reality. This paper presents a broad foundation for a full-featured biomechanical simulator for the human musculoskeletal system physiology. This simulation technology unites the expertise in biomechanical analysis and graphic modeling to investigate joint and connective tissue mechanics at the structural level and to visualize the results in both static and animated forms together with the model. Adaptable anatomical models including prosthetic implants and fracture fixation devices and a robust computational infrastructure for static, kinematic, kinetic, and stress analyses under varying boundary and loading conditions are incorporated on a common platform, the VIMS (Virtual Interactive Musculoskeletal System). Within this software system, a manageable database containing long bone dimensions, connective tissue material properties and a library of skeletal joint system functional activities and loading conditions are also available and they can easily be modified, updated and expanded. Application software is also available to allow end-users to perform biomechanical analyses interactively. This paper details the design, capabilities, and features of the VIMS development at Johns Hopkins University, an effort possible only through academic and commercial collaborations. Examples using these models and the computational algorithms in a virtual laboratory environment are used to demonstrate the utility of this unique database and simulation technology. This integrated system will impact on medical education, basic research, device development and application, and clinical patient care related to musculoskeletal diseases, trauma, and rehabilitation.

  4. Effects of undetected data quality issues on climatological analyses

    Directory of Open Access Journals (Sweden)

    S. Hunziker


    Full Text Available Systematic data quality issues may occur at various stages of the data generation process. They may affect large fractions of observational datasets and remain largely undetected with standard data quality control. This study investigates the effects of such undetected data quality issues on the results of climatological analyses. For this purpose, we quality controlled daily observations of manned weather stations from the Central Andean area with a standard and an enhanced approach. The climate variables analysed are minimum and maximum temperature and precipitation. About 40 % of the observations are inappropriate for the calculation of monthly temperature means and precipitation sums due to data quality issues. These quality problems undetected with the standard quality control approach strongly affect climatological analyses, since they reduce the correlation coefficients of station pairs, deteriorate the performance of data homogenization methods, increase the spread of individual station trends, and significantly bias regional temperature trends. Our findings indicate that undetected data quality issues are included in important and frequently used observational datasets and hence may affect a high number of climatological studies. It is of utmost importance to apply comprehensive and adequate data quality control approaches on manned weather station records in order to avoid biased results and large uncertainties.

  5. Microbiological, Physicochemical, and Histological Analyses of Broiler Carcasses with Cachexia

    Directory of Open Access Journals (Sweden)

    LC Nery

    Full Text Available ABSTRACT Broiler carcasses presenting cachexia, as determined by the federal inspection agency, were submitted to microbiological, physicochemical, and histological analyses. Over a 2-month period, 278 carcasses from straight-run flocks of 43- to 48-d-old Cobb broilers from two different farms were condemned due to cachexia and subjected to gross examination in the final inspection sector. Out of the 278 carcasses, 131 did not present any gross signs of infection, and were submitted to microbiological analyses (n=83, physicochemical analyses (n=28, and viscera and muscle samples of 20 carcasses were evaluated by histology. The microbiological results of cachectic carcasses complied with the current legislation on the consumption of fresh poultry meat. Lower lipid and higher protein, moisture, and volatile matter contents, and higher pH (p<0.05 were determined in the cachectic than in the control carcasses from a same flock, but no ash content differences. All carcasses were negative for hydrogen sulfide. The histological analysis showed that65% of the cachectic carcasses did not have any muscle injury, 20% showed mild hyalinization and 15% moderate proliferation of fibrous connective tissue. The findings of this study indicate the importance of further technical and scientific studies on the utilization of cachectic broiler carcasses for the manufacture of edible products, rather than whole carcasses rendering, thereby preventing the resulting economic losses.

  6. Albedo Pattern Recognition and Time-Series Analyses in Malaysia (United States)

    Salleh, S. A.; Abd Latif, Z.; Mohd, W. M. N. Wan; Chan, A.


    Pattern recognition and time-series analyses will enable one to evaluate and generate predictions of specific phenomena. The albedo pattern and time-series analyses are very much useful especially in relation to climate condition monitoring. This study is conducted to seek for Malaysia albedo pattern changes. The pattern recognition and changes will be useful for variety of environmental and climate monitoring researches such as carbon budgeting and aerosol mapping. The 10 years (2000-2009) MODIS satellite images were used for the analyses and interpretation. These images were being processed using ERDAS Imagine remote sensing software, ArcGIS 9.3, the 6S code for atmospherical calibration and several MODIS tools (MRT, HDF2GIS, Albedo tools). There are several methods for time-series analyses were explored, this paper demonstrates trends and seasonal time-series analyses using converted HDF format MODIS MCD43A3 albedo land product. The results revealed significance changes of albedo percentages over the past 10 years and the pattern with regards to Malaysia's nebulosity index (NI) and aerosol optical depth (AOD). There is noticeable trend can be identified with regards to its maximum and minimum value of the albedo. The rise and fall of the line graph show a similar trend with regards to its daily observation. The different can be identified in term of the value or percentage of rises and falls of albedo. Thus, it can be concludes that the temporal behavior of land surface albedo in Malaysia have a uniform behaviours and effects with regards to the local monsoons. However, although the average albedo shows linear trend with nebulosity index, the pattern changes of albedo with respects to the nebulosity index indicates that there are external factors that implicates the albedo values, as the sky conditions and its diffusion plotted does not have uniform trend over the years, especially when the trend of 5 years interval is examined, 2000 shows high negative linear


    Directory of Open Access Journals (Sweden)

    S. A. Salleh


    Full Text Available Pattern recognition and time-series analyses will enable one to evaluate and generate predictions of specific phenomena. The albedo pattern and time-series analyses are very much useful especially in relation to climate condition monitoring. This study is conducted to seek for Malaysia albedo pattern changes. The pattern recognition and changes will be useful for variety of environmental and climate monitoring researches such as carbon budgeting and aerosol mapping. The 10 years (2000–2009 MODIS satellite images were used for the analyses and interpretation. These images were being processed using ERDAS Imagine remote sensing software, ArcGIS 9.3, the 6S code for atmospherical calibration and several MODIS tools (MRT, HDF2GIS, Albedo tools. There are several methods for time-series analyses were explored, this paper demonstrates trends and seasonal time-series analyses using converted HDF format MODIS MCD43A3 albedo land product. The results revealed significance changes of albedo percentages over the past 10 years and the pattern with regards to Malaysia's nebulosity index (NI and aerosol optical depth (AOD. There is noticeable trend can be identified with regards to its maximum and minimum value of the albedo. The rise and fall of the line graph show a similar trend with regards to its daily observation. The different can be identified in term of the value or percentage of rises and falls of albedo. Thus, it can be concludes that the temporal behavior of land surface albedo in Malaysia have a uniform behaviours and effects with regards to the local monsoons. However, although the average albedo shows linear trend with nebulosity index, the pattern changes of albedo with respects to the nebulosity index indicates that there are external factors that implicates the albedo values, as the sky conditions and its diffusion plotted does not have uniform trend over the years, especially when the trend of 5 years interval is examined, 2000 shows high

  8. Pegasys: software for executing and integrating analyses of biological sequences

    Directory of Open Access Journals (Sweden)

    Lett Drew


    Full Text Available Abstract Background We present Pegasys – a flexible, modular and customizable software system that facilitates the execution and data integration from heterogeneous biological sequence analysis tools. Results The Pegasys system includes numerous tools for pair-wise and multiple sequence alignment, ab initio gene prediction, RNA gene detection, masking repetitive sequences in genomic DNA as well as filters for database formatting and processing raw output from various analysis tools. We introduce a novel data structure for creating workflows of sequence analyses and a unified data model to store its results. The software allows users to dynamically create analysis workflows at run-time by manipulating a graphical user interface. All non-serial dependent analyses are executed in parallel on a compute cluster for efficiency of data generation. The uniform data model and backend relational database management system of Pegasys allow for results of heterogeneous programs included in the workflow to be integrated and exported into General Feature Format for further analyses in GFF-dependent tools, or GAME XML for import into the Apollo genome editor. The modularity of the design allows for new tools to be added to the system with little programmer overhead. The database application programming interface allows programmatic access to the data stored in the backend through SQL queries. Conclusions The Pegasys system enables biologists and bioinformaticians to create and manage sequence analysis workflows. The software is released under the Open Source GNU General Public License. All source code and documentation is available for download at

  9. Improving Climate Communication through Comprehensive Linguistic Analyses Using Computational Tools (United States)

    Gann, T. M.; Matlock, T.


    An important lesson on climate communication research is that there is no single way to reach out and inform the public. Different groups conceptualize climate issues in different ways and different groups have different values and assumptions. This variability makes it extremely difficult to effectively and objectively communicate climate information. One of the main challenges is the following: How do we acquire a better understanding of how values and assumptions vary across groups, including political groups? A necessary starting point is to pay close attention to the linguistic content of messages used across current popular media sources. Careful analyses of that information—including how it is realized in language for conservative and progressive media—may ultimately help climate scientists, government agency officials, journalists and others develop more effective messages. Past research has looked at partisan media coverage of climate change, but little attention has been given to the fine-grained linguistic content of such media. And when researchers have done detailed linguistic analyses, they have relied primarily on hand-coding, an approach that is costly, labor intensive, and time-consuming. Our project, building on recent work on partisan news media (Gann & Matlock, 2014; under review) uses high dimensional semantic analyses and other methods of automated classification techniques from the field of natural language processing to quantify how climate issues are characterized in media sources that differ according to political orientation. In addition to discussing varied linguistic patterns, we share new methods for improving climate communication for varied stakeholders, and for developing better assessments of their effectiveness.

  10. Phosphoproteomic analyses reveal signaling pathways that facilitate lytic gammaherpesvirus replication.

    Directory of Open Access Journals (Sweden)

    James A Stahl


    Full Text Available Lytic gammaherpesvirus (GHV replication facilitates the establishment of lifelong latent infection, which places the infected host at risk for numerous cancers. As obligate intracellular parasites, GHVs must control and usurp cellular signaling pathways in order to successfully replicate, disseminate to stable latency reservoirs in the host, and prevent immune-mediated clearance. To facilitate a systems-level understanding of phosphorylation-dependent signaling events directed by GHVs during lytic replication, we utilized label-free quantitative mass spectrometry to interrogate the lytic replication cycle of murine gammaherpesvirus-68 (MHV68. Compared to controls, MHV68 infection regulated by 2-fold or greater ca. 86% of identified phosphopeptides - a regulatory scale not previously observed in phosphoproteomic evaluations of discrete signal-inducing stimuli. Network analyses demonstrated that the infection-associated induction or repression of specific cellular proteins globally altered the flow of information through the host phosphoprotein network, yielding major changes to functional protein clusters and ontologically associated proteins. A series of orthogonal bioinformatics analyses revealed that MAPK and CDK-related signaling events were overrepresented in the infection-associated phosphoproteome and identified 155 host proteins, such as the transcription factor c-Jun, as putative downstream targets. Importantly, functional tests of bioinformatics-based predictions confirmed ERK1/2 and CDK1/2 as kinases that facilitate MHV68 replication and also demonstrated the importance of c-Jun. Finally, a transposon-mutant virus screen identified the MHV68 cyclin D ortholog as a viral protein that contributes to the prominent MAPK/CDK signature of the infection-associated phosphoproteome. Together, these analyses enhance an understanding of how GHVs reorganize and usurp intracellular signaling networks to facilitate infection and replication.

  11. iQuant™ Analyser: A rapid quantitative immunoassay reader. (United States)

    Joseph, Jayaraj; Vasan, Jayaraman Kiruthi; Shah, Malay; Sivaprakasam, Mohansankar; Mahajan, Lalit


    Lateral flow immunoassays (LFIA) used in rapid quantitative point of care testing require an accurate, reliable and easy to operate instrument to read the LFIA kit and calculate the quantitative result value. We present iQuant® Analyser, an immunoassay reader designed for reading the Quanti® range of LFIA test kits for key markers such as HbA1C, Vitamin D, TSH etc. The instrument utilizes a laser based confocal optics system to capture the test and control lines from the LFIA kit, digitizes the fluorescent signal with high spatiotemporal resolution, computes necessary peak area ratios, applies calibration curves and declares the final result in an automated manner with minimal operator input. The instrument uses kit specific calibration information embedded on each LFIA test kit, to compute the final clinical parameter without using any external calibration chip. An intuitive icon based interface enables easy operation with minimal key presses, suited for point of care applications. The technology is designed in a modular manner to enable the instrument to perform tests on various parameters such as HbA1C, TSH, and Vitamin D etc without any hardware changes, using test-specific LFIA kits. The functional performance of the iQuant Analyser was verified over the range of expected area ratio values with standard reference cartridges that provided stable fluorescent lines. Repeatability of the instrument was found to be excellent with coefficient of variation (CoV) of area ratios found to be less than 1%. The inter-instrument reproducibility was also found to be good with CoV less than 4 %. Tests using blood samples with Quanti LFIA kits verified the accuracy of HbA1C results to be acceptable as per international standards with errors <; 4 %. The iQuant Analyser is a portable, easy to use rapid quantitative immunoassay reader best suited for point of care applications.

  12. Quality assurance in road traffic analyses in Switzerland. (United States)

    Briellmann, Thomas A; Sigrist, Thomas; Augsburger, Marc; Favrat, Bernard; Oestreich, Andrea; Deom, André


    Swiss laboratories performing toxicological road traffic analyses have been authorized for many years by the Swiss Federal Roads Office (FEDRO). In 2003 FEDRO signed a contract with the Swiss Society of Legal Medicine (SSLM) to organize the complete quality management concerning road traffic analyses. For this purpose a multidisciplinary working group was established under the name of "road traffic commission (RTC)". RTC has to organize external quality control, to interpret the results of these controls, to perform audits in the laboratories and to report all results to FEDRO. Furthermore the working group can be mandated for special tasks by FEDRO. As an independent organization the Swiss Center for Quality Control (CSCQ) in Geneva manages the external quality controls in the laboratory over the past years. All tested drugs and psychoactive substances are listed in a federal instruction. The so-called 'zero tolerance substances' (THC, morphine, cocaine, amphetamine, methamphetamine, MDMA and MDEA) and their metabolites have to be tested once a year, all other substances (benzodiazepines, zolpidem, phenobarbital, etc.) periodically. Results over the last years show that all laboratories are generally within the confidence interval of +/-30% of the mean value. In cases of non-conformities measures have to be taken immediately and reported to the working group. External audits are performed triennially but accredited laboratories can combine this audit with the approval of the Swiss Accreditation Service (SAS). During the audits a special checklist filled in by the laboratory director is assessed. Non-conformities have to be corrected. During the process of establishing a new legislation, RTC had an opportunity of advising FEDRO. In collaboration with FEDRO, RTC and hence SSLM can work actively on improving of quality assurance in road traffic toxicological analyses, and has an opportunity to bring its professional requests to the federal authorities.

  13. Review of accident analyses of RB experimental reactor

    Directory of Open Access Journals (Sweden)

    Pešić Milan P.


    Full Text Available The RB reactor is a uranium fuel heavy water moderated critical assembly that has been put and kept in operation by the VTNCA Institute of Nuclear Sciences, Belgrade, Serbia and Montenegro, since April 1958. The first complete Safety Analysis Report of the RB reactor was prepared in 1961/62 yet, the first accident analysis had been made in late 1958 with the aim to examine a power transition and the total equivalent doses received by the staff during the reactivity accident that occurred on October 15, 1958. Since 1960, the RB reactor has been modified a few times. Beside the initial natural uranium metal fuel rods, new types of fuel (TVR-S types of Russian origin consisting of 2% enriched uranium metal and 80% enriched UO2 dispersed in aluminum matrix, have been available since 1962 and 1976 respectively. Modifications of the control and safety systems of the reactor were made occasionally. Special reactor cores were designed and constructed using all three types of fuel elements as well as the coupled fast-thermal ones. The Nuclear Safety Committee of the VINĆA Institute, an independent regulatory body, approved for usage all these modifications of the RB reactor on the basis of the Preliminary Safety Analysis Reports, which, beside proposed technical modifications and new regulation rules, included safety analyses of various possible accidents. A special attention was given (and a new safety methodology was proposed to thorough analyses of the design-based accidents related to the coupled fast-thermal cores that included central zones of the reactor filled by the fuel elements without any moderator. In this paper, an overview of some accidents, methodologies and computation tools used for the accident analyses of the RB reactor is given.

  14. Reporting quality of systematic reviews/meta-analyses of acupuncture.

    Directory of Open Access Journals (Sweden)

    Yali Liu

    Full Text Available The QUOROM and PRISMA statements were published in 1999 and 2009, respectively, to improve the consistency of reporting systematic reviews (SRs/meta-analyses (MAs of clinical trials. However, not all SRs/MAs adhere completely to these important standards. In particular, it is not clear how well SRs/MAs of acupuncture studies adhere to reporting standards and which reporting criteria are generally ignored in these analyses.To evaluate reporting quality in SRs/MAs of acupuncture studies.We performed a literature search for studies published prior to 2014 using the following public archives: PubMed, EMBASE, Web of Science, the Cochrane Database of Systematic Reviews (CDSR, the Chinese Biomedical Literature Database (CBM, the Traditional Chinese Medicine (TCM database, the Chinese Journal Full-text Database (CJFD, the Chinese Scientific Journal Full-text Database (CSJD, and the Wanfang database. Data were extracted into pre-prepared Excel data-extraction forms. Reporting quality was assessed based on the PRISMA checklist (27 items.Of 476 appropriate SRs/MAs identified in our search, 203, 227, and 46 were published in Chinese journals, international journals, and the Cochrane Database, respectively. In 476 SRs/MAs, only 3 reported the information completely. By contrast, approximately 4.93% (1/203, 8.81% (2/227 and 0.00% (0/46 SRs/Mas reported less than 10 items in Chinese journals, international journals and CDSR, respectively. In general, the least frequently reported items (reported≤50% in SRs/MAs were "protocol and registration", "risk of bias across studies", and "additional analyses" in both methods and results sections.SRs/MAs of acupuncture studies have not comprehensively reported information recommended in the PRISMA statement. Our study underscores that, in addition to focusing on careful study design and performance, attention should be paid to comprehensive reporting standards in SRs/MAs on acupuncture studies.

  15. Eine selbstkonsistente Carleman Linearisierung zur Analyse von Oszillatoren

    Directory of Open Access Journals (Sweden)

    H. Weber


    Full Text Available Die Analyse nichtlinearer dynamischer Schaltungen ist bis heute eine herausfordernde Aufgabe, da nur selten analytische Lösungen angegeben werden können. Daher wurden eine Vielzahl von Methoden entwickelt, um eine qualitative oder quantitative Näherung für die Lösungen der Netzwerkgleichung zu erhalten. Oftmals wird beispielsweise eine Kleinsignalanalyse mit Hilfe einer Taylorreihe in einem Arbeitspunkt durchgeführt, die nach den Gliedern erster Ordnung abgebrochen wird. Allerdings ist diese Linearisierung nur in der Nähe des stabilen Arbeitspunktes für hyperbolische Systeme gültig. Besonders für die Analyse des dynamischen Verhaltens von Oszillatoren treten jedoch nicht-hyperbolische Systeme auf, sodass diese Methode nicht angewendet werden kann Mathis(2000. Carleman hat gezeigt, dass nichtlineare Differentialgleichungen mit polynomiellen Nichtlinearitäten in ein unendliches System von linearen Differentialgleichungen transformiert werden können Carleman(1932. Wird das unendlichdimensionale Gleichungssystem für numerische Zwecke abgebrochen, kann bei Oszillatoren der Übergang in eine stationäre Schwingung (Grenzzyklus nicht wiedergegeben werden.In diesem Beitrag wird eine selbstkonsistente Carleman Linearisierung zur Untersuchung von Oszillatoren vorgestellt, die auch dann anwendbar ist, wenn die Nichtlinearitäten keinen Polynomen entsprechen. Anstelle einer linearen Näherung um einen Arbeitspunkt, erfolgt mit Hilfe der Carleman Linearisierung eine Approximation auf einem vorgegebenen Gebiet. Da es jedoch mit der selbstkonsistenten Technik nicht möglich ist, das stationäre Verhalten von Oszillatoren zu beschreiben, wird die Berechnung einer Poincaré-Abbildung durchgeführt. Mit dieser ist eine anschließende Analyse des Oszillators möglich.

  16. A turbulent jet in crossflow analysed with proper orthogonal decomposition

    DEFF Research Database (Denmark)

    Meyer, Knud Erik; Pedersen, Jakob Martin; Özcan, Oktay


    and that they interact strongly with the jet core. The analysis identifies jet shear-layer vortices and finds that these vortical structures are more local and thus less dominant. For R = 1.3, on the other hand, jet shear-layer vortices are the most dominant, while the wake vortices are much less important. For both...... and pipe diameter was 2400 and the jet to crossflow velocity ratios were R = 3.3 and R = 1.3. The experimental data have been analysed by proper orthogonal decomposition (POD). For R = 3.3, the results in several different planes indicate that the wake vortices are the dominant dynamic flow structures...

  17. Baby talk - analyse of the deaf child speech


    Hronová, Anna


    This work throws light upon the communication in the sign language which is held in a deaf family. Theoretical part of the work is focused on description of the features of language acquisition. General psycholinguistic knowledge i s given parallely with the results of research of sign language acquisition of the the deaf children from deaf families. The largest part of this work i s analyse of a five years old deaf boy speech. The author based her research on the M.A.K. Halliday language acq...

  18. Thermal and hydraulic analyses of the System 81 cold traps

    Energy Technology Data Exchange (ETDEWEB)

    Kim, K.


    Thermal and hydraulic analyses of the System 81 Type I and II cold traps were completed except for thermal transients analysis. Results are evaluated, discussed, and reported. Analytical models were developed to determine the physical dimensions of the cold traps and to predict the performance. The FFTF cold trap crystallizer performances were simulated using the thermal model. This simulation shows that the analytical model developed predicts reasonably conservative temperatures. Pressure drop and sodium residence time calculations indicate that the present design will meet the requirements specified in the E-Specification. Steady state temperature data for the critical regions were generated to assess the magnitude of the thermal stress.

  19. Analyse, Modélisation et Simulation du Mouvement Humain


    Multon, Franck


    Comprendre le mouvement humain mobilise des chercheurs de nombreuses disciplines scientifiques : physiologie, biomécanique, neurosciences comportementales, anatomie fonctionnelle, les sciences du sport... Mes travaux s'inscrivent donc dans une démarche pluridisciplinaire d'analyse/synthèse du mouvement humain. Pour mener à bien cette démarche, une première tâche consiste à modéliser et à simuler le système moteur ainsi qu'un ensemble d'hypothèses. L'objectif est de disposer d'une représentati...

  20. Conditions, dynamiques et analyses des partenariats de recherche

    Directory of Open Access Journals (Sweden)

    Anne Gillet


    Full Text Available Dans le cadre de ce dossier de la Revue SociologieS, nous proposons une thématique consacrée à la « recherche partenariale », forme de recherche construite entre chercheurs et autres milieux professionnels (entreprises, administrations publiques, associations, syndicat…. Constatant en effet dans certains pays un intérêt pour la recherche partenariale, avec parallèlement un manque flagrant de connaissances et d’analyses théoriques développées sur ce type de recherche, il paraît pertinent de p...

  1. Training residential staff and supervisors to conduct traditional functional analyses. (United States)

    Lambert, Joseph M; Bloom, Sarah E; Clay, Casey J; Kunnavatana, S Shanun; Collins, Shawnee D


    In this study we extended a training outlined by Iwata to behavioral technicians working for a residential service provider for adults with developmental disabilities. Specifically, we trained ten supervisors and four assistants to organize, conduct, collect data for, and interpret the results of traditional functional analyses (FA; Iwata et al.,1994). Performance was initially low and improved across all measures following training. Results extend previous FA training research by including a tangible condition and by demonstrating that individuals with little to no prior experience conducting FAs can be taught all of the skills required to autonomously conduct them in a relatively short period of time. Copyright © 2014 Elsevier Ltd. All rights reserved.


    Directory of Open Access Journals (Sweden)

    Biljana Kovačević-Zelić


    Full Text Available Underground exploitation of dimension stone is spreading lately for three main reasons; economy, organisation and environment. Moreover, underground openings can be used for many purposes. Underground exploitation is different from surface quarrying only in the first stage, the removal of top slice, descending slices are worked as in conventional quarries. In underground stone quarries, stability problems require adequate studies in order to avoid expensive artificial support measures, The article presents numerical analyses of an underground stone quarry made using of the finite difference code FLAC (the paper is published in Croatian.

  3. 3D analyses of cavitation instabilities accounting for plastic anisotropy

    DEFF Research Database (Denmark)

    Legarth, Brian Nyvang; Tvergaard, Viggo


    Full three dimensional cell model analyses are carried out for a solid containing a single small void, in order to determine the critical stress levels for the occurrence of cavitation instabilities. The material models applied are elastic‐viscoplastic, with a small rate‐hardening exponent...... that the quasi‐static solution is well approximated. A special procedure is used to strongly reduce the loading rate a little before the instability occurs. It is found that plastic anisotropy has a significant effect on the level of the critical stress for cavitation instabilities....

  4. Analyse du debit de filtration glomerulaire de repos chez des ...

    African Journals Online (AJOL)

    Analyse du debit de filtration glomerulaire de repos chez des joueuses de sports collectifs au Benin. ... Dans le groupe étudié, la valeur moyenne de la créatininémie est de 9,5 ± 1,2 mg/L. Le DFG moyen estimé avec l'équation MDRD (74,2 ± 11,6 mL/min/1,73 m2) était plus bas que celui estimé avec la formule CGc (89,4 ...

  5. Energy and Exergy Analyses of the Danish Industry Sector

    DEFF Research Database (Denmark)

    Bühler, Fabian; Nguyen, Tuong-Van; Elmegaard, Brian


    with data for the years 2006 and 2012. The sectoral energy and exergy losses, as well as the exergy destruction, were further established to quantify the potential for recovering and valorising heat otherwise lost. By also considering transformation processes occurring in the utility sector, the impact...... analyses. The exergy losses amounted to 3800 TJ for the same year. Meanwhile, the complete exergy losses, including the central production of heat and power, exceeded 8700 TJ. This analysis illustrates for the case study of Denmark how waste heat recovery potentials in the industrial sectors are found...

  6. Quality assessment of published health economic analyses from South America. (United States)

    Machado, Márcio; Iskedjian, Michael; Einarson, Thomas R


    Health economic analyses have become important to healthcare systems worldwide. No studies have previously examined South America's contribution in this area. To survey the literature with the purpose of reviewing, quantifying, and assessing the quality of published South American health economic analyses. A search of MEDLINE (1990-December 2004), EMBASE (1990-December 2004), International Pharmaceutical Abstracts (1990-December 2004), Literatura Latino-Americana e do Caribe em Ciências da Saúde (1982-December 2004), and Sistema de Informacion Esencial en Terapéutica y Salud (1980-December 2004) was completed using the key words cost-effectiveness analysis (CEA), cost-utility analysis (CUA), cost-minimization analysis (CMA), and cost-benefit analysis (CBA); abbreviations CEA, CUA, CMA, and CBA; and all South American country names. Papers were categorized by type and country by 2 independent reviewers. Quality was assessed using a 12 item checklist, characterizing scores as 4 (good), 3 (acceptable), 2 (poor), 1 (unable to judge), and 0 (unacceptable). To be included in our investigation, studies needed to have simultaneously examined costs and outcomes. We retrieved 25 articles; one duplicate article was rejected, leaving 24 (CEA = 15, CBA = 6, CMA = 3; Brazil = 9, Argentina = 5, Colombia = 3, Chile = 2, Ecuador = 2, 1 each from Peru, Uruguay, Venezuela). Variability between raters was less than 0.5 point on overall scores (OS) and less than 1 point on all individual items. Mean OS was 2.6 (SD 1.0, range 1.4-3.8). CBAs scored highest (OS 2.8, SD 0.8), CEAs next (OS 2.7, SD 0.7), and CMAs lowest (OS 2.0, SD 0.5). When scored by type of question, definition of study aim scored highest (OS 3.0, SD 0.8), while ethical issues scored lowest (OS 1.5, SD 0.9). By country, Peru scored highest (mean OS 3.8) and Uruguay had the lowest scores (mean OS 2.2). A nonsignificant time trend was noted for OS (R2 = 0.12; p = 0.104). Quality scores of health economic analyses

  7. Performing Geographic Information System Analyses on Building Information Management Models


    Bengtsson, Jonas; Grönkvist, Mikael


    As the usage of both BIM (Building Information Modelling) and 3D-GIS (Three-Dimensional Geographic Information Systems) has increased within the field of urban development and construction, so has the interest in connecting these two tools.  One possibility of integration is the potential of visualising BIM models together with other spatial data in 3D. Another is to be able to perform spatial 3D analyses on the models. Both of these can be achieved through use of GIS software. This study exp...

  8. Usage of data warehouse for analysing software's bugs (United States)

    Živanov, Danijel; Krstićev, Danijela Boberić; Mirković, Duško


    We analysed the database schema of Bugzilla system and taking into account user's requirements for reporting, we presented a dimensional model for the data warehouse which will be used for reporting software defects. The idea proposed in this paper is not to throw away Bugzilla system because it certainly has many strengths, but to make integration of Bugzilla and the proposed data warehouse. Bugzilla would continue to be used for recording bugs that occur during the development and maintenance of software while the data warehouse would be used for storing data on bugs in an appropriate form, which is more suitable for analysis.

  9. Analysing the use of history of mathematics through MKT† (United States)

    Jankvist, Uffe Thomas; Mosvold, Reidar; Fauskanger, Janne; Jakobsen, Arne


    In this article, we analyse three 'classical' cases of using history of mathematics in teacher training and reinterpret them using the framework of mathematical knowledge for teaching (MKT). We continue with a discussion of the potential benefits of applying MKT as a framework for discussion in research related to the use of history in mathematics education. MKT serves as an example of a framework from general mathematics education research which has something to offer in this respect. We argue that the MKT framework provides a powerful language to communicate results from research on the uses of history of mathematics to researchers in other areas of mathematics education research.

  10. Detection and analyse of hazardous roads in rural areas

    DEFF Research Database (Denmark)

    Sørensen, Michael


    For the last period of 5-10 years the notion "Grey roads" (hazardous roads) has appeared in Danish traffic safety work and improvement of these roads has become a very important part of the traffic safety work in many countries. The problem is, that the notion never has been clearly defined......, and therefore there are no unambiguos methods to point out and analyse "Grey roads". In this article based on a ph.D.-project a method to detecting "Grey roads" is introduced....

  11. Techniques for Scaling Up Analyses Based on Pre-interpretations

    DEFF Research Database (Denmark)

    Gallagher, John Patrick; Henriksen, Kim Steen; Banda, Gourinath


    a variety of analyses, both generic (such as mode analysis) and program-specific (with respect to a type describing some particular property of interest). Previous work demonstrated the approach using pre-interpretations over small domains. In this paper we present techniques that allow the method...... to be applied to more complex pre-interpretations and larger programs. There are two main techniques presented: the first is a novel algorithm for determinising finite tree automata, yielding a compact ``product" form of the transitions of the result automaton, that is often orders of magnitude smaller than...

  12. The ASSET intercomparison of stratosphere and lower mesosphere humidity analyses

    Directory of Open Access Journals (Sweden)

    H. E. Thornton


    Full Text Available This paper presents results from the first detailed intercomparison of stratosphere-lower mesosphere water vapour analyses; it builds on earlier results from the EU funded framework V "Assimilation of ENVISAT Data" (ASSET project. Stratospheric water vapour plays an important role in many key atmospheric processes and therefore an improved understanding of its daily variability is desirable. With the availability of high resolution, good quality Michelson Interferometer for Passive Atmospheric Sounding (MIPAS water vapour profiles, the ability of four different atmospheric models to assimilate these data is tested. MIPAS data have been assimilated over September 2003 into the models of the European Centre for Medium Range Weather Forecasts (ECMWF, the Belgian Institute for Space and Aeronomy (BIRA-IASB, the French Service d'Aéronomie (SA-IPSL and the UK Met Office. The resultant middle atmosphere humidity analyses are compared against independent satellite data from the Halogen Occultation Experiment (HALOE, the Polar Ozone and Aerosol Measurement (POAM III and the Stratospheric Aerosol and Gas Experiment (SAGE II. The MIPAS water vapour profiles are generally well assimilated in the ECMWF, BIRA-IASB and SA systems, producing stratosphere-mesosphere water vapour fields where the main features compare favourably with the independent observations. However, the models are less capable of assimilating the MIPAS data where water vapour values are locally extreme or in regions of strong humidity gradients, such as the southern hemisphere lower stratosphere polar vortex. Differences in the analyses can be attributed to the choice of humidity control variable, how the background error covariance matrix is generated, the model resolution and its complexity, the degree of quality control of the observations and the use of observations near the model boundaries. Due to the poor performance of the Met Office analyses the results are not included in

  13. Biomechanical Analyses of Stair-climbing while Dual-tasking


    Vallabhajosula, Srikant; Tan, Chi Wei; Mukherjee, Mukul; Davidson, Austin J.; Stergiou, Nicholas


    Stair-climbing while doing a concurrent task like talking or holding an object is a common activity of daily living which poses high risk for falls. While biomechanical analyses of overground walking during dual-tasking have been studied extensively, little is known on the biomechanics of stair-climbing while dual-tasking. We sought to determine the impact of performing a concurrent cognitive or motor task during stair-climbing. We hypothesized that a concurrent cognitive task will have a gre...

  14. Analyse af kvalitetsdata baseret på landsdaekkende kliniske databaser

    DEFF Research Database (Denmark)

    Utzon, Jan; Petri, Anette Lykke; Christophersen, Sten


    There is little agreement on the philosophy of measuring clinical quality in health care. How data should be analyzed and transformed to healthcare information is an ongoing discussion. To accept a difference in quality between health departments as a real difference, one should consider to which...... extent the selection of patients, random variation, confounding and inconsistency may have influenced results. The aim of this article is to summarize aspects of clinical healthcare data analyses provided from the national clinical quality databases and to show how data may be presented in a way which...

  15. Postmoderne overbelastning : en komparativ analyse av tre storbyromaner


    Andersen, Øystein


    Denne oppgaven er en komparativ analyse av tre storbyromaner; Crash av J.G. Ballard, Requiem for a Dream av Hubert Selby Jr, og Fight Club av Chuck Palahniuk. I hver av disse romanene skildres en form for stagnert storbytilværelse, der hovedkarakterenes liv er repeterende og stillestående. I et postmoderne samfunn i evig forandring, er det viktig å kunne tilpasse seg disse endringene, skifte kurs og ta i bruk nye muligheter. Dette er den postmoderne livsstrategi, en nødvendig strategi for å l...

  16. Dynamics of energy systems: Methods of analysing technology change

    Energy Technology Data Exchange (ETDEWEB)

    Neij, Lena


    Technology change will have a central role in achieving a sustainable energy system. This calls for methods of analysing the dynamics of energy systems in view of technology change and policy instruments for effecting and accelerating technology change. In this thesis, such methods have been developed, applied, and assessed. Two types of methods have been considered, methods of analysing and projecting the dynamics of future technology change and methods of evaluating policy instruments effecting technology change, i.e. market transformation programmes. Two methods are focused on analysing the dynamics of future technology change; vintage models and experience curves. Vintage models, which allow for complex analysis of annual streams of energy and technological investments, are applied to the analysis of the time dynamics of electricity demand for lighting and air-distribution in Sweden. The results of the analyses show that the Swedish electricity demand for these purposes could decrease over time, relative to a reference scenario, if policy instruments are used. Experience curves are used to provide insight into the prospects of diffusion of wind turbines and photo voltaic (PV) modules due to cost reduction. The results show potential for considerable cost reduction for wind-generated electricity, which, in turn, could lead to major diffusion of wind turbines. The results also show that major diffusion of PV modules, and a reduction of PV generated electricity down to the level of conventional base-load electricity, will depend on large investments in bringing the costs down (through R D and D, market incentives and investments in niche markets) or the introduction of new generations of PV modules (e.g. high-efficiency mass-produced thin-film cells). Moreover, a model has been developed for the evaluation of market transformation programmes, i.e. policy instruments that effect technology change and the introduction and commercialisation of energy

  17. Analysing Old Testament poetry: Basic issues in contemporary exegesis

    Directory of Open Access Journals (Sweden)

    G. T. M. Prinsloo


    Full Text Available The wealth of publications on matters relating to Old Testament poetry is witness to the fact that this subject has become a focal point in Old Testament studies. In this paper, an overview of contemporary publications is given. The basic issues, both on the level of poetic theory and practical application, are pointed out. A tendency towards a comprehensive literary approach is definitely present and should be encouraged. Only when a poem is analysed on all levels and by all means, will the richness of its meaning be appreciated.

  18. Coordinated Analyses of Diverse Components in Whole Stardust Cometary Tracks (United States)

    Nakamura-Messenger, K.; Keller, L. P.; Messenger, S.; Clemett, S. J.; Nguyen, A. N.; Frank, D.


    Analyses of samples returned from Comet Wild-2 by the Stardust spacecraft have resulted in a number of surprising findings that show the origins of comets are more complex than previously suspected [1]. Stardust aerogel tracks show considerable compositional diversity and the degree of impact related thermal modification and destruction is also highly variable. We are performing systematic examinations of entire Stardust tracks to discern the representative mineralogy and origins of comet Wild 2 components and to search for well preserved fine grained materials. Previously, we used ultramicrotomy to prepare sequential thin sections of entire "carrot" and "bulbous" type tracks along their axis while preserving their original shapes [2]. This technique allows us to characterize the usually well-preserved terminal particle (TP), but also any associated, fine-grained fragments that were shed along the track pathway. This report focuses on coordinated analyses of surviving indigenous cometary materials (crystalline and amorphous) along the aerogel track walls, their interaction with aerogel during collection and comparisons with their TPs. We examined the distribution of fragments throughout the track from the entrance hole to the TP.

  19. UFO-a multi-analyser option for IN12 (United States)

    Schmidt, Wolfgang; Rheinstädter, Maikel C.; Raymond, Stephane; Ohl, Michael


    The IN12 instrument is operated by FZ Jülich in collaboration with CEA Grenoble as a CRG-B instrument at the Institut Laue Langevin in Grenoble. As a three-axis spectrometer for cold neutrons it is dedicated for high-resolution studies of low-energy excitations. In the past years the instrument has been continuously improved and it has demonstrated its excellent performance for neutron scattering research. To meet further challenges as a state-of-the-art instrument in the next funding period we will propose to upgrade IN12 with a multi-analyser option similar to planned or existing RITA-type instruments. IN12 will then be optionally equipped with an array of individual analyser blades which can be positioned separately in order to map the scattered beam on a user-chosen path in (Q,ω)-space. We refer to this set-up as IN12-UFO (universal focusing option). Both, the feasibility and the scientific case are currently being studied. On the conference we will show details of the planned instrumental set-up and demonstrate its flexibility and multiplex advantages for specific physical applications.

  20. cosmolike - cosmological likelihood analyses for photometric galaxy surveys (United States)

    Krause, Elisabeth; Eifler, Tim


    We explore strategies to extract cosmological constraints from a joint analysis of cosmic shear, galaxy-galaxy lensing, galaxy clustering, cluster number counts and cluster weak lensing. We utilize the cosmolike software to simulate results from a Large Synoptic Survey Telescope (LSST) like data set, specifically, we (1) compare individual and joint analyses of the different probes, (2) vary the selection criteria for lens and source galaxies, (3) investigate the impact of blending, (4) investigate the impact of the assumed cosmological model in multiprobe covariances, (6) quantify information content as a function of scales and (7) explore the impact of intrinsic galaxy alignment in a multiprobe context. Our analyses account for all cross-correlations within and across probes and include the higher-order (non-Gaussian) terms in the multiprobe covariance matrix. We simultaneously model cosmological parameters and a variety of systematics, e.g. uncertainties arising from shear and photo-z calibration, cluster mass-observable relation, galaxy intrinsic alignment and galaxy bias (up to 54 parameters altogether). We highlight two results: first, increasing the number density of source galaxies by ˜30 per cent, which corresponds to solving blending for LSST, only gains little information. Secondly, including small scales in clustering and galaxy-galaxy lensing, by utilizing halo occupation distribution models, can substantially boost cosmological constraining power.

  1. Instrumental variable analyses. Exploiting natural randomness to understand causal mechanisms. (United States)

    Iwashyna, Theodore J; Kennedy, Edward H


    Instrumental variable analysis is a technique commonly used in the social sciences to provide evidence that a treatment causes an outcome, as contrasted with evidence that a treatment is merely associated with differences in an outcome. To extract such strong evidence from observational data, instrumental variable analysis exploits situations where some degree of randomness affects how patients are selected for a treatment. An instrumental variable is a characteristic of the world that leads some people to be more likely to get the specific treatment we want to study but does not otherwise change those patients' outcomes. This seminar explains, in nonmathematical language, the logic behind instrumental variable analyses, including several examples. It also provides three key questions that readers of instrumental variable analyses should ask to evaluate the quality of the evidence. (1) Does the instrumental variable lead to meaningful differences in the treatment being tested? (2) Other than through the specific treatment being tested, is there any other way the instrumental variable could influence the outcome? (3) Does anything cause patients to both receive the instrumental variable and receive the outcome?

  2. Sensitivity of surface meteorological analyses to observation networks (United States)

    Tyndall, Daniel Paul

    A computationally efficient variational analysis system for two-dimensional meteorological fields is developed and described. This analysis approach is most efficient when the number of analysis grid points is much larger than the number of available observations, such as for large domain mesoscale analyses. The analysis system is developed using MATLAB software and can take advantage of multiple processors or processor cores. A version of the analysis system has been exported as a platform independent application (i.e., can be run on Windows, Linux, or Macintosh OS X desktop computers without a MATLAB license) with input/output operations handled by commonly available internet software combined with data archives at the University of Utah. The impact of observation networks on the meteorological analyses is assessed by utilizing a percentile ranking of individual observation sensitivity and impact, which is computed by using the adjoint of the variational surface assimilation system. This methodology is demonstrated using a case study of the analysis from 1400 UTC 27 October 2010 over the entire contiguous United States domain. The sensitivity of this approach to the dependence of the background error covariance on observation density is examined. Observation sensitivity and impact provide insight on the influence of observations from heterogeneous observing networks as well as serve as objective metrics for quality control procedures that may help to identify stations with significant siting, reporting, or representativeness issues.

  3. PhoneQuant: A smartphone-based quantitative immunoassay analyser. (United States)

    Shah, Malay Ilesh; Joseph, Jayaraj; Sanne, Ujwal Sriharsha; Sivaprakasam, Mohanasankar


    There is a vital need for portable and cost-effective point-of-care (PoC) testing technologies that provide reliable and rapid results. Lateral Flow Immunoassays (LFIA) are suitable PoC diagnostic tools with the potential for use in a wide variety of field applications ranging from uses in clinical diagnostics to aiding law enforcement. Quick and reliable diagnosis of non-communicable diseases (NCD) like diabetes is vital especially in developing countries like India where the burden of these diseases is very high and is increasing day by day. In this paper, we have presented the design of smartphone-based fully quantitative LFIA analyser, An automatic image processing algorithm is also described. A repeatability study was done with stable fluorescence reference cartridges. The Coefficient of Variation (CoV) for repeatability study was calculated and it was found to be good (LFIA analysers and it has good potential to be deployed at physician's desk or for in-home PoC testing for quick and reliable diagnosis.

  4. Reactor transient analyses with KIN3D/PARTISN

    Energy Technology Data Exchange (ETDEWEB)

    Gabrielli, F.; Rineiski, A.; Maschek, W.; Marchetti, M. [Karlsruhe Institute of Technology, Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen (Germany)


    Efforts are going on at the Karlsruhe Institute of Technology (KIT) to extend the kinetics capability of the PARTISN code in order to run in parallel two- and three-dimensional transient analyses with the quasistatic method, while taking into account delayed neutrons. In the original code version, time-dependent transport problems are solved by employing a semi-implicit direct kinetics option, the delayed neutrons being not taken into account. The PARTISN 5.97 code has been extended and then coupled with KIN3D, a time-dependent model embedded in the ERANOS code system. In the coupled code, PARTISN 5.97 is used as neutron transport solver to perform transient analyses while employing direct and quasi-static kinetics options of KIN3D. The coupled code can be also applied for first-order and exact perturbation theory calculations. In the paper, the PARTISN 5.97 extensions and coupling procedure are described and the performances of the KIN3D/PARTISN coupled code are investigated by analyzing transients induced by a source-jerk in a three-dimensional ADS model driven by an external source. (authors)

  5. Statistical technique for analysing functional connectivity of multiple spike trains. (United States)

    Masud, Mohammad Shahed; Borisyuk, Roman


    A new statistical technique, the Cox method, used for analysing functional connectivity of simultaneously recorded multiple spike trains is presented. This method is based on the theory of modulated renewal processes and it estimates a vector of influence strengths from multiple spike trains (called reference trains) to the selected (target) spike train. Selecting another target spike train and repeating the calculation of the influence strengths from the reference spike trains enables researchers to find all functional connections among multiple spike trains. In order to study functional connectivity an "influence function" is identified. This function recognises the specificity of neuronal interactions and reflects the dynamics of postsynaptic potential. In comparison to existing techniques, the Cox method has the following advantages: it does not use bins (binless method); it is applicable to cases where the sample size is small; it is sufficiently sensitive such that it estimates weak influences; it supports the simultaneous analysis of multiple influences; it is able to identify a correct connectivity scheme in difficult cases of "common source" or "indirect" connectivity. The Cox method has been thoroughly tested using multiple sets of data generated by the neural network model of the leaky integrate and fire neurons with a prescribed architecture of connections. The results suggest that this method is highly successful for analysing functional connectivity of simultaneously recorded multiple spike trains. Copyright © 2011 Elsevier B.V. All rights reserved.

  6. Analyses of the OSU-MASLWR Experimental Test Facility

    Directory of Open Access Journals (Sweden)

    F. Mascari


    Full Text Available Today, considering the sustainability of the nuclear technology in the energy mix policy of developing and developed countries, the international community starts the development of new advanced reactor designs. In this framework, Oregon State University (OSU has constructed, a system level test facility to examine natural circulation phenomena of importance to multi-application small light water reactor (MASLWR design, a small modular pressurized water reactor (PWR, relying on natural circulation during both steady-state and transient operation. The target of this paper is to give a review of the main characteristics of the experimental facility, to analyse the main phenomena characterizing the tests already performed, the potential transients that could be investigated in the facility, and to describe the current IAEA International Collaborative Standard Problem that is being hosted at OSU and the experimental data will be collected at the OSU-MASLWR test facility. A summary of the best estimate thermal hydraulic system code analyses, already performed, to analyze the codes capability in predicting the phenomena typical of the MASLWR prototype, thermal hydraulically characterized in the OSU-MASLWR facility, is presented as well.

  7. Integration efficiency for model reduction in micro-mechanical analyses (United States)

    van Tuijl, Rody A.; Remmers, Joris J. C.; Geers, Marc G. D.


    Micro-structural analyses are an important tool to understand material behavior on a macroscopic scale. The analysis of a microstructure is usually computationally very demanding and there are several reduced order modeling techniques available in literature to limit the computational costs of repetitive analyses of a single representative volume element. These techniques to speed up the integration at the micro-scale can be roughly divided into two classes; methods interpolating the integrand and cubature methods. The empirical interpolation method (high-performance reduced order modeling) and the empirical cubature method are assessed in terms of their accuracy in approximating the full-order result. A micro-structural volume element is therefore considered, subjected to four load-cases, including cyclic and path-dependent loading. The differences in approximating the micro- and macroscopic quantities of interest are highlighted, e.g. micro-fluctuations and stresses. Algorithmic speed-ups for both methods with respect to the full-order micro-structural model are quantified. The pros and cons of both classes are thereby clearly identified.

  8. Quantitative analyses of circadian gene expression in mammalian cell cultures.

    Directory of Open Access Journals (Sweden)

    Mariko Izumo


    Full Text Available The central circadian pacemaker is located in the hypothalamus of mammals, but essentially the same oscillating system operates in peripheral tissues and even in immortalized cell lines. Using luciferase reporters that allow automated monitoring of circadian gene expression in mammalian fibroblasts, we report the collection and analysis of precise rhythmic data from these cells. We use these methods to analyze signaling pathways of peripheral tissues by studying the responses of Rat-1 fibroblasts to ten different compounds. To quantify these rhythms, which show significant variation and large non-stationarities (damping and baseline drifting, we developed a new fast Fourier transform-nonlinear least squares analysis procedure that specifically optimizes the quantification of amplitude for circadian rhythm data. This enhanced analysis method successfully distinguishes among the ten signaling compounds for their rhythm-inducing properties. We pursued detailed analyses of the responses to two of these compounds that induced the highest amplitude rhythms in fibroblasts, forskolin (an activator of adenylyl cyclase, and dexamethasone (an agonist of glucocorticoid receptors. Our quantitative analyses clearly indicate that the synchronization mechanisms by the cAMP and glucocorticoid pathways are different, implying that actions of different genes stimulated by these pathways lead to distinctive programs of circadian synchronization.

  9. Activation and Shielding Analyses in Support of the GUINEVERE Project

    Energy Technology Data Exchange (ETDEWEB)

    Serikov, A.; Fischer, U.; Mercatali, L. [Association FZK-EURATOM, KIT, Forschungszentrum Karlsruhe, P.O. Box 3640, 76021 Karlsruhe (Germany); Baeten, P.; Vittiglio, G. [SCK-CEN, Boeretang 200, B-2400 Mol (Belgium)


    The GUINEVERE facility (Generator of Uninterrupted Intense Neutrons at the lead Venus Reactor) must satisfy the nuclear safety criteria required by the Belgian safety authority to be licensed. The radiation dose and activation analyses for the nuclear safety assessment of the GUINEVERE project were performed at FZK. The concerted efforts of several European institutions were concentrated on the development and construction of a subcritical fast lead core based on the Venus water moderated reactor at the SCK-CEN site in Mol, Belgium. A Monte Carlo (MC) MCNP5 model was developed in accordance with the current design of the GUINEVERE fast lead core. The analytical MC method does not work for shielding analysis of the GUINEVERE building because of the large size of the rooms and thick concrete walls and floors. MC variance reduction techniques, such as particles splitting, Russian roulette, and point detectors were therefore applied. The JEFF-3.1 nuclear data library was used for radiation transport calculations. The activation analyses for the lead core and building materials were performed with the FISPACT-2005 inventory code and the EAF-2005 library. The neutron and photon dose rate maps were produced using MCNP track-length estimations, point detectors, and a mesh tally superimposed over the GUINEVERE geometry. The effects of D-D and D-T fusion neutron sources were estimated. (authors)

  10. Can museum egg specimens be used for proteomic analyses? (United States)

    Portugal, Steven J; Cooper, Helen J; Zampronio, Cleidiane G; Wallace, Laine L; Cassey, Phillip


    Mass spectrometry and proteomic analyses have become powerful tools for the analysis of proteins and peptides. Investigation of proteins contained in the various layers of the avian eggshell has focused entirely on domesticated species. It has been widely assumed that this existing research can inform the study of wild bird species despite the fact that the vast majority of the diversity in avian species (~95%) exists outside the Orders to which domestic and poultry species belong. Museum collections offer a potentially valuable source of material for studying composition of wild avian eggshell matrix proteins. We used museum and fresh eggshells of common quails Coturnix coturnix to compare the protein composition of their organic matrices. Four eggs of domestic chickens were analysed simultaneously as a control for comparison to the fresh and museum quail eggs. The determination of the proteins was carried out using enzymatic cleavage followed by high-performance mass spectrometry. We found that some of the expected key eggshell proteins (3 out of 11) were not present in the samples of museum quail egg. These proteins were either entirely absent from the museum eggs or the technique was unable to detect them. There was no pattern in the absent proteins in the sense of protein function or where they are located within the eggshell. We conclude it is likely that such studies on museum specimens using a proteomic approach will be limited in coverage of proteins and may, therefore, be misleading.

  11. Can museum egg specimens be used for proteomic analyses?

    Directory of Open Access Journals (Sweden)

    Portugal Steven J


    Full Text Available Abstract Background Mass spectrometry and proteomic analyses have become powerful tools for the analysis of proteins and peptides. Investigation of proteins contained in the various layers of the avian eggshell has focused entirely on domesticated species. It has been widely assumed that this existing research can inform the study of wild bird species despite the fact that the vast majority of the diversity in avian species (~95% exists outside the Orders to which domestic and poultry species belong. Museum collections offer a potentially valuable source of material for studying composition of wild avian eggshell matrix proteins. We used museum and fresh eggshells of common quails Coturnix coturnix to compare the protein composition of their organic matrices. Four eggs of domestic chickens were analysed simultaneously as a control for comparison to the fresh and museum quail eggs. The determination of the proteins was carried out using enzymatic cleavage followed by high-performance mass spectrometry. Results We found that some of the expected key eggshell proteins (3 out of 11 were not present in the samples of museum quail egg. These proteins were either entirely absent from the museum eggs or the technique was unable to detect them. There was no pattern in the absent proteins in the sense of protein function or where they are located within the eggshell. Conclusion We conclude it is likely that such studies on museum specimens using a proteomic approach will be limited in coverage of proteins and may, therefore, be misleading.

  12. Phylogenomics and coalescent analyses resolve extant seed plant relationships. (United States)

    Xi, Zhenxiang; Rest, Joshua S; Davis, Charles C


    The extant seed plants include more than 260,000 species that belong to five main lineages: angiosperms, conifers, cycads, Ginkgo, and gnetophytes. Despite tremendous effort using molecular data, phylogenetic relationships among these five lineages remain uncertain. Here, we provide the first broad coalescent-based species tree estimation of seed plants using genome-scale nuclear and plastid data By incorporating 305 nuclear genes and 47 plastid genes from 14 species, we identify that i) extant gymnosperms (i.e., conifers, cycads, Ginkgo, and gnetophytes) are monophyletic, ii) gnetophytes exhibit discordant placements within conifers between their nuclear and plastid genomes, and iii) cycads plus Ginkgo form a clade that is sister to all remaining extant gymnosperms. We additionally observe that the placement of Ginkgo inferred from coalescent analyses is congruent across different nucleotide rate partitions. In contrast, the standard concatenation method produces strongly supported, but incongruent placements of Ginkgo between slow- and fast-evolving sites. Specifically, fast-evolving sites yield relationships in conflict with coalescent analyses. We hypothesize that this incongruence may be related to the way in which concatenation methods treat sites with elevated nucleotide substitution rates. More empirical and simulation investigations are needed to understand this potential weakness of concatenation methods.

  13. Preparation of environmental analyses for synfuel and unconventional gas technologies

    Energy Technology Data Exchange (ETDEWEB)

    Reed, R.M. (ed.)


    Government agencies that offer financial incentives to stimulate the commercialization of synfuel and unconventional gas technologies usually require an analysis of environmental impacts resulting from proposed projects. This report reviews potentially significant environmental issues associated with a selection of these technologies and presents guidance for developing information and preparing analyses to address these issues. The technologies considered are western oil shale, tar sand, coal liquefaction and gasification, peat, unconventional gas (western tight gas sands, eastern Devonian gas shales, methane from coal seams, and methane from geopressured aquifers), and fuel ethanol. Potentially significant issues are discussed under the general categories of land use, air quality, water use, water quality, biota, solid waste disposal, socioeconomics, and health and safety. The guidance provided in this report can be applied to preparation and/or review of proposals, environmental reports, environmental assessments, environmental impact statements, and other types of environmental analyses. The amount of detail required for any issue discussed must, by necessity, be determined on a case-by-case basis.

  14. Proteomic analyses using Grifola frondosa metalloendoprotease Lys-N. (United States)

    Hohmann, Laura; Sherwood, Carly; Eastham, Ashley; Peterson, Amelia; Eng, Jimmy K; Eddes, James S; Shteynberg, David; Martin, Daniel B


    Proteomic analysis typically has been performed using proteins digested with trypsin because of the excellent fragmentation patterns they produce in collision induced dissociation (CID). For analyses in which high protein coverage is desirable, such as global monitoring of post-translational modifications, additional sequences can be seen using parallel digestion with a second enzyme. We have benchmarked a relatively obscure basidomycete-derived zinc metalloendopeptidase, Lys-N, that selectively cleaves the amide bond N-terminal of lysine residues. We have found that Lys-N digestion yields peptides with easily assigned CID spectra. Using a mixture of purified proteins as well as a complex yeast lysate, we have shown that Lys-N efficiently digests all proteins at the predicted sites of cleavage. Shotgun proteomics analyses of Lys-N digests of both the standard mixture and yeast lysate yielded peptide and protein identification numbers that were generally comparable to trypsin digestion, whereas the combination data from Lys-N and trypsin digestion substantially enhanced protein coverage. During CID fragmentation, the additional amino terminal basicity enhanced b-ion intensity which was reflected in long b-ion tags that were particularly pronounced during CID in a quadrupole. Finally, immonium ion peaks produced from Lys-N digested peptides originate from the carboxy terminus in contrast to tryptic peptides where immonium ions originate from the amino terminus.

  15. Sensitivity analyses for parametric causal mediation effect estimation. (United States)

    Albert, Jeffrey M; Wang, Wei


    Causal mediation analysis uses a potential outcomes framework to estimate the direct effect of an exposure on an outcome and its indirect effect through an intermediate variable (or mediator). Causal interpretations of these effects typically rely on sequential ignorability. Because this assumption is not empirically testable, it is important to conduct sensitivity analyses. Sensitivity analyses so far offered for this situation have either focused on the case where the outcome follows a linear model or involve nonparametric or semiparametric models. We propose alternative approaches that are suitable for responses following generalized linear models. The first approach uses a Gaussian copula model involving latent versions of the mediator and the final outcome. The second approach uses a so-called hybrid causal-observational model that extends the association model for the final outcome, providing a novel sensitivity parameter. These models, while still assuming a randomized exposure, allow for unobserved (as well as observed) mediator-outcome confounders that are not affected by exposure. The methods are applied to data from a study of the effect of mother education on dental caries in adolescence. © The Author 2014. Published by Oxford University Press. All rights reserved. For permissions, please e-mail:

  16. Analysing the ocular biometry of new-born infants. (United States)

    Rozema, Jos J; Herscovici, Zvi; Snir, Moshe; Axer-Siegel, Ruth


    To model and analyse the ocular biometry of new-born infants. This work is based on previously published data of a cohort of 66 new-born infants aged 0-3 days. After exclusion of seven myopic subjects, the available retinoscopy, keratometry and ultrasound biometry data were analysed, along with calculated parameters such as lens power and whole eye power. Male infants have significantly flatter corneas that female infants (Mann-Whitney U test, p  0.05), suggesting scaled eye growth during the last weeks before birth. Multivariate Gaussian analysis demonstrated that a statistical eye model can be defined that generates synthetic data that is significantly equal to the original data (non-parametric Mann-Whitney test for equality; all p Levene test; all p > 0.05). The eye undergoes a scaled growth until birth, at which time male and female infants have similar values. The models presented may serve as an early biometry reference. © 2017 The Authors Ophthalmic & Physiological Optics © 2017 The College of Optometrists.

  17. L'analyse de régression logistique

    Directory of Open Access Journals (Sweden)

    Julie Desjardins


    Full Text Available La régression logistique se définit comme étant une technique permettant d’ajuster une surface de régression à des données lorsque la variable dépendante est dichotomique. Cette technique est utilisée pour des études ayant pour but de vérifier si des variables indépendantes peuvent prédire une variable dépendante dichotomique. Contrairement à la régression multiple et l’analyse discriminante, cette technique n’exige pas une distribution normale des prédicteurs ni l’homogénéité des variances. Différents types de régression logistique existent, possédant chacun leur procédé statistique et conduisant à l’élaboration de différents modèles théoriques. Ainsi, seront abordés les types direct, séquentiel et automatisé («stepwise». Un exemple d’utilisation de cette technique avec le logiciel SPSS sera présenté et la procédure d’analyse des résultats y sera détaillée, notamment en ce qui a trait à l’interprétation des rapports de cote.

  18. Chronic disease patient education: lessons from meta-analyses. (United States)

    Cooper, H; Booth, K; Fear, S; Gill, G


    Twelve meta-analyses were identified concerning education for people with chronic diseases where behaviour modification is a part of the treatment regime. By combining the results of these meta-analyses a second stage descriptive meta-analysis was conducted. The aim of the exercise was to explore the effects of patient education and implications for educational treatment. The results provided evidence of the gaps that exist in current research practice. These gaps include the need to utilise rigorous research designs to explore the quantitative effects of patient education, and the need to qualitatively explore the processes by which these effects have transpired. Where randomised controlled trials had been conducted the effects of patient education were usually small and were only known for 6 months of follow-up. In addition, the educational interventions tested were generally poorly described, and failed to adhere to theoretical models. The results of this review have highlighted the need for practitioners to use theoretically based teaching strategies which include behaviour change tactics that affect feelings and attitudes. In alignment with these conclusions, the review has provided guidelines for future research practice.

  19. Finite element analyses of tool stresses in metal cutting processes

    Energy Technology Data Exchange (ETDEWEB)

    Kistler, B.L. [Sandia National Labs., Livermore, CA (United States)


    In this report, we analytically predict and examine stresses in tool tips used in high speed orthogonal machining operations. Specifically, one analysis was compared to an existing experimental measurement of stresses in a sapphire tool tip cutting 1020 steel at slow speeds. In addition, two analyses were done of a carbide tool tip in a machining process at higher cutting speeds, in order to compare to experimental results produced as part of this study. The metal being cut was simulated using a Sandia developed damage plasticity material model, which allowed the cutting to occur analytically without prespecifying the line of cutting/failure. The latter analyses incorporated temperature effects on the tool tip. Calculated tool forces and peak stresses matched experimental data to within 20%. Stress contours generally agreed between analysis and experiment. This work could be extended to investigate/predict failures in the tool tip, which would be of great interest to machining shops in understanding how to optimize cost/retooling time.

  20. SSCM analyses of biomass resources in Randers, Norddjurs and Syddjurs

    Energy Technology Data Exchange (ETDEWEB)


    This project has been commissioned by ENERCOAST whose overall aim is to stimulate increased use and production of biomass, and create a market for bio energy in the North Sea region. The Enercoast project has been financed by the EU Interreg IVB with partners from Denmark, Germany, United Kingdom, Sweden and Norway. The Danish project leader is AgroBusiness Park/ CBMI /Innovation Centre for Bioenergy and Environmental Technology. Central Region Denmark is co-financing 34% of the Danish portion of the project, while the municipalities of Norddjurs, Syddjurs and Randers are contributing to the project with their working hours. The Danish portion of this project focuses on three Danish municipalities, Randers, Norddjurs, and Syddjurs, and the possibilities to reach local energy and climate targets by increasing the use and production of biomass. The project is divided into 6 phases of which this report is part of the second and third phase which focus on analyses of various biomass resources on a local level including carrying out SSCM analyses of these resources. The aim of this report is to assess the sustainability of relevant bio energy supply chains related to the resource accessibility in the three municipalities with main focus on biogas, straw, wood residues and energy crops for combined heat and power production. Sustainable Supply Chain Management (SSCM) is a concept that has many definitions and the methodologies used to approach this are numerous. In this report the SSCM analysis is used to answer the following question: What are the possibilities of increased use of biomass for energy production in the three municipalities, and what consequences are associated with the utilisation of each of the selected resources described through our case studies? For each of the resource case studies an overview of the supply chain is illustrated through a matrix. Each step of the supply chain from the primal material production in on end to heat and electricity

  1. Operational Satellite-based Surface Oil Analyses (Invited) (United States)

    Streett, D.; Warren, C.


    During the Deepwater Horizon spill, NOAA imagery analysts in the Satellite Analysis Branch (SAB) issued more than 300 near-real-time satellite-based oil spill analyses. These analyses were used by the oil spill response community for planning, issuing surface oil trajectories and tasking assets (e.g., oil containment booms, skimmers, overflights). SAB analysts used both Synthetic Aperture Radar (SAR) and high resolution visible/near IR multispectral satellite imagery as well as a variety of ancillary datasets. Satellite imagery used included ENVISAT ASAR (ESA), TerraSAR-X (DLR), Cosmo-Skymed (ASI), ALOS (JAXA), Radarsat (MDA), ENVISAT MERIS (ESA), SPOT (SPOT Image Corp.), Aster (NASA), MODIS (NASA), and AVHRR (NOAA). Ancillary datasets included ocean current information, wind information, location of natural oil seeps and a variety of in situ oil observations. The analyses were available as jpegs, pdfs, shapefiles and through Google, KML files and also available on a variety of websites including Geoplatform and ERMA. From the very first analysis issued just 5 hours after the rig sank through the final analysis issued in August, the complete archive is still publicly available on the NOAA/NESDIS website SAB personnel also served as the Deepwater Horizon International Disaster Charter Project Manager (at the official request of the USGS). The Project Manager’s primary responsibility was to acquire and oversee the processing and dissemination of satellite data generously donated by numerous private companies and nations in support of the oil spill response including some of the imagery described above. SAB has begun to address a number of goals that will improve our routine oil spill response as well as help assure that we are ready for the next spill of national significance. We hope to (1) secure a steady, abundant and timely stream of suitable satellite imagery even in the absence of large-scale emergencies such as

  2. Compilation and network analyses of cambrian food webs.

    Directory of Open Access Journals (Sweden)

    Jennifer A Dunne


    Full Text Available A rich body of empirically grounded theory has developed about food webs--the networks of feeding relationships among species within habitats. However, detailed food-web data and analyses are lacking for ancient ecosystems, largely because of the low resolution of taxa coupled with uncertain and incomplete information about feeding interactions. These impediments appear insurmountable for most fossil assemblages; however, a few assemblages with excellent soft-body preservation across trophic levels are candidates for food-web data compilation and topological analysis. Here we present plausible, detailed food webs for the Chengjiang and Burgess Shale assemblages from the Cambrian Period. Analyses of degree distributions and other structural network properties, including sensitivity analyses of the effects of uncertainty associated with Cambrian diet designations, suggest that these early Paleozoic communities share remarkably similar topology with modern food webs. Observed regularities reflect a systematic dependence of structure on the numbers of taxa and links in a web. Most aspects of Cambrian food-web structure are well-characterized by a simple "niche model," which was developed for modern food webs and takes into account this scale dependence. However, a few aspects of topology differ between the ancient and recent webs: longer path lengths between species and more species in feeding loops in the earlier Chengjiang web, and higher variability in the number of links per species for both Cambrian webs. Our results are relatively insensitive to the exclusion of low-certainty or random links. The many similarities between Cambrian and recent food webs point toward surprisingly strong and enduring constraints on the organization of complex feeding interactions among metazoan species. The few differences could reflect a transition to more strongly integrated and constrained trophic organization within ecosystems following the rapid

  3. Use of statistical analyses in the ophthalmic literature. (United States)

    Lisboa, Renato; Meira-Freitas, Daniel; Tatham, Andrew J; Marvasti, Amir H; Sharpsten, Lucie; Medeiros, Felipe A


    To identify the most commonly used statistical analyses in the ophthalmic literature and to determine the likely gain in comprehension of the literature that readers could expect if they were to add knowledge of more advanced techniques sequentially to their statistical repertoire. Cross-sectional study. All articles published from January 2012 through December 2012 in Ophthalmology, the American Journal of Ophthalmology, and Archives of Ophthalmology were reviewed. A total of 780 peer-reviewed articles were included. Two reviewers examined each article and assigned categories to each one depending on the type of statistical analyses used. Discrepancies between reviewers were resolved by consensus. Total number and percentage of articles containing each category of statistical analysis were obtained. Additionally, we estimated the accumulated number and percentage of articles that a reader would be expected to be able to interpret depending on their statistical repertoire. Readers with little or no statistical knowledge would be expected to be able to interpret the statistical methods presented in only 20.8% of articles. To understand more than half (51.4%) of the articles published, readers would be expected to be familiar with at least 15 different statistical methods. Knowledge of 21 categories of statistical methods was necessary to comprehend 70.9% of articles, whereas knowledge of more than 29 categories was necessary to comprehend more than 90% of articles. Articles related to retina and glaucoma subspecialties showed a tendency for using more complex analysis when compared with articles from the cornea subspecialty. Readers of clinical journals in ophthalmology need to have substantial knowledge of statistical methodology to understand the results of studies published in the literature. The frequency of the use of complex statistical analyses also indicates that those involved in the editorial peer-review process must have sound statistical knowledge to


    Directory of Open Access Journals (Sweden)

    Miftahul Janah


    Full Text Available Abstract This qualitative study described about grammatical error on students narrative writing. The participants were the second semester students of STKIP Muhammadiyah Pringsewu Lampung in academic year 2013/ 2014. In collecting data,this study uses forms with general, emerging questions to permit the participant to generate responses. Then, gathering word (text from the participants, and collecting information from individual of participants. Data analysis tends to consist of text analysis, to involve developing a description and themes, then interpretation tends to sonsist of stating the larger meaning of the findings. After analysing the students writing, it was found that most of mistakes made by students were: missing subject, missing be in simple predicate, wrong simple predicate missing be, superfluous be, misinformation of passive form, the verb comes after the subject, pronoun form, agreement, and reference. Key Word: Grammar,Grammatical Error, Writing Skill, Narrative Text

  5. Skin barrier and contact allergy: Genetic risk factor analyses

    DEFF Research Database (Denmark)

    Ross-Hansen, Katrine


    Background Contact allergy is frequent in the general population and arises from prolonged or repeated skin contact with chemical substances. The environmental risk factor is obvious, yet some studies report on associations between genetic variance and an increased risk of developing contact......) in particular. Methods Epidemiological genetic association studies were performed on a general Danish population. Participants were patch tested, answered a questionnaire on general health and were genotyped for GST, CLDN1 and FLG polymorphisms. Filaggrin’s nickel binding potential was evaluated biochemically...... by extracting epidermal proteins from human surgical waste samples and stratum corneum scrapings followed by binding studies using immobilized metal affinity chromatography. Results As suggested by Kaplan-Meier event history analyses, FLG null mutations lowered the age of onset of nickel dermatitis, when ear...

  6. Analysing changes of health inequalities in the Nordic welfare states

    DEFF Research Database (Denmark)

    Lahelma, Eero; Kivelä, Katariina; Roos, Eva


    -standing illness and perceived health were analysed by age, gender, employment status and educational attainment. First, age-adjusted overall prevalence percentages were calculated. Second, changes in the magnitude of relative health inequalities were studied using logistic regression analysis. Within each country......This study examined changes over time in relative health inequalities among men and women in four Nordic countries, Denmark, Finland, Norway and Sweden. A serious economic recession burst out in the early 1990s particularly in Finland and Sweden. We ask whether this adverse social structural......'development influenced health inequalities by employment status and educational attainment, i.e. whether the trends in health inequalities were similar or dissimilar between the Nordic countries. The data derived from comparable interview surveys carried out in 1986/87 and 1994/95 in the four countries. Limiting long...

  7. Cardiac safety of citalopram: prospective trials and retrospective analyses

    DEFF Research Database (Denmark)

    Rasmussen, Søren Poul Lind; Overø, K F; Tanghøj, P


    in volunteers and patients and in retrospective evaluations of all electrocardiographic (ECG) data from all clinical trials conducted from 1978 through 1996 (a total of 40 studies). A randomized, double-blind, placebo-controlled study was conducted in healthy volunteers (N = 23) to assess intraindividual......-controlled, fixed-dose trials in adult and elderly patients (N = 1,460) with major depression and/or dementia. Finally, more than 6,000 ECGs (N = 1,789 citalopram-treated patients) collected from all clinical trials conducted from 1978 through 1996 were reassessed in a standardized manner to identify any effects...... of citalopram on ECG parameters. Results of both prospective and retrospective analyses showed that the only effect of citalopram on ECG findings is a small reduction in heart rate (

  8. Uncertainty quantification and validation of combined hydrological and macroeconomic analyses.

    Energy Technology Data Exchange (ETDEWEB)

    Hernandez, Jacquelynne; Parks, Mancel Jordan; Jennings, Barbara Joan; Kaplan, Paul Garry; Brown, Theresa Jean; Conrad, Stephen Hamilton


    Changes in climate can lead to instabilities in physical and economic systems, particularly in regions with marginal resources. Global climate models indicate increasing global mean temperatures over the decades to come and uncertainty in the local to national impacts means perceived risks will drive planning decisions. Agent-based models provide one of the few ways to evaluate the potential changes in behavior in coupled social-physical systems and to quantify and compare risks. The current generation of climate impact analyses provides estimates of the economic cost of climate change for a limited set of climate scenarios that account for a small subset of the dynamics and uncertainties. To better understand the risk to national security, the next generation of risk assessment models must represent global stresses, population vulnerability to those stresses, and the uncertainty in population responses and outcomes that could have a significant impact on U.S. national security.

  9. Reducing injuries among Native Americans: five cost-outcome analyses. (United States)

    Zaloshnja, Eduard; Miller, Ted R; Galbraith, Maury S; Lawrence, Bruce A; DeBruyn, Lemyra M; Bill, Nancy; Hicks, Kenny R; Keiffer, Michael; Perkins, Ronald


    This paper presents cost-outcome analyses of five injury prevention efforts in Native American jurisdictions: a safety-belt program, a streetlight project, a livestock control project, a drowning prevention program, and a suicide prevention and intervention program. Pre- and post-intervention data were analyzed to estimate projects' impact on injury reduction. Projects' costs were amortized over the time period covered by the evaluation or over the useful life of physical capital invested. Projects' savings were calculated based on estimated reduction in medical and public program expenses, on estimated decrease in lost productivity, and on estimated quality adjusted life years saved.All projects yielded positive benefit-cost ratios. The net cost per quality adjusted life years was less than zero (i.e. the monetary savings exceeded project costs) for all but one of the projects.

  10. Failure analyses and weld repair of boiler feed water pumps

    Energy Technology Data Exchange (ETDEWEB)

    Vulpen, R. van [KemaPower Generation, Arnhem (Netherlands)


    During a regular inspection of the Boiler Auxiliaries at one of the Dutch Electricity Production Companies serious cracks were found in the cover and casings of the feed water circulation pumps in two units after 108.000 and 122.000 hours of boiler operation. Kema Laboratories carried out Failure analyses on boat samples at the cracked areas. Corrosion fatigue cracking was found on the inner side of the GS-24CrNiMo325 casing. Shop Weld repairs were carried out using a newly developed mechanized Plasma Welding Technique. The repaired feed water circulation pumps showed no problems alter several years of operation. The costs of repair were substantially lower than the costs of replacement. (orig.) 3 refs.

  11. [Analysing a public health service network's managerial competence]. (United States)

    Huerta-Riveros, Patricia C; Leyton-Pavez, Carolina E; Saldia-Barahona, Héctor


    Analysing the effectiveness of training-action methodology in developing and strengthening the skills required by public health network managerial staff. The study evaluated an educational programme (pre- and post- evaluation being applied within the programme's framework and conditions, without controlled conditions) in which 37 managerial staff from the Talcahuano Health Service Network (forming part of the Public Health Assistance Network) participated in the Managerial Team Training programme, 2007 and 2008, run by the Bío-Bío University's Entrepreneurial Science Faculty in Chile. A skill-based self-evaluation instrument was applied on two different occasions. The results revealed a lack of management skills-based training in network managerial teams and the need for it through training-action methodology which stimulates such needed managerial skills. Acquiring these skills will lead to providing users with a quality service through better management practice in public health establishments.

  12. Dictionnaire d'analyse et de gestion des risques

    CERN Document Server

    Desroches, Alain


    Ce dictionnaire présente les principaux termes utilisés en analyse et gestion des risques, pour tous les secteurs d'activité industrielle ou de service. Il permet de clarifier des terminologies existantes présentant des variations plus ou moins importantes et parfois des contradictions de sens. Il propose : premièrement, la définition des auteurs, définition correspondant à l'usage le plus courant du terme , deuxièmement, les différences avec les terminologies existantes (essentiellement des normes) , troisièmement, des compléments à la définition, lorsque cela semble nécessaire et notamment lorsqu'il est important de préciser le contexte d'utilisation du terme , en dernier lieu, des exemples pratiques d'application, lorsque cela peut apporter un éclairage complémentaire pertinent.

  13. Analysing Music with Point-Set Compression Algorithms

    DEFF Research Database (Denmark)

    Meredith, David


    Several point-set pattern-discovery and compression algorithms designed for analysing music are reviewed and evaluated. Each algorithm takes as input a point-set representation of a score in which each note is represented as a point in pitch-time space. Each algorithm computes the maximal...... translatable patterns (MTPs) in this input and the translational equivalence classes (TECs) of these MTPs, where each TEC contains all the occurrences of a given MTP. Each TEC is encoded as a ⟨pattern,vector set⟩ pair, in which the vector set gives all the vectors by which the pattern can be translated...... and sections in pieces of classical music. On the first task, the best-performing algorithms achieved success rates of around 84%. In the second task, the best algorithms achieved mean F1 scores of around 0.49, with scores for individual pieces rising as high as 0.71....

  14. Une Analyse de film pour comprendre le racisme


    Rosiejka, Veronica Ann


    Il y a une nouvelle vague de racisme ouvert en France. Cependant, c'est un phénomène avec des racines sociales et historiques complexes. Ce mémoire cherche à comprendre le racisme de deux manières : généralement, aussi bien que spécifiquement à la France. Le centre d'attention principal de cette étude est la psychologie du racisme, comment le racisme fonctionne et ses conséquences, éléments qui sont étudiés à travers l'analyse d'une série de neuf courts-métrages,...

  15. Probabilistic and Nonprobabilistic Sensitivity Analyses of Uncertain Parameters

    Directory of Open Access Journals (Sweden)

    Sheng-En Fang


    Full Text Available Parameter sensitivity analyses have been widely applied to industrial problems for evaluating parameter significance, effects on responses, uncertainty influence, and so forth. In the interest of simple implementation and computational efficiency, this study has developed two sensitivity analysis methods corresponding to the situations with or without sufficient probability information. The probabilistic method is established with the aid of the stochastic response surface and the mathematical derivation proves that the coefficients of first-order items embody the parameter main effects on the response. Simultaneously, a nonprobabilistic interval analysis based method is brought forward for the circumstance when the parameter probability distributions are unknown. The two methods have been verified against a numerical beam example with their accuracy compared to that of a traditional variance-based method. The analysis results have demonstrated the reliability and accuracy of the developed methods. And their suitability for different situations has also been discussed.

  16. Laboratory analyses of two explanted hydrophobic acrylic intraocular lenses

    Directory of Open Access Journals (Sweden)

    Yunhai Dai


    Full Text Available Two three-piece hydrophobic acrylic intraocular lenses (IOLs were explanted from two patients at 7 and 9 years, respectively, after implantation, because of poor fundus visualisation and/or a clinically significant decrease in visual acuity related to their opacified IOLs. In addition to light microscopy, scanning electron microscopy and energy dispersive X-ray spectroscopy, confocal laser scanning microscopy was used for the first time to observe the explanted IOLs. The clinical aspect seemed to correspond to the phenomenon of surface light scattering, while laboratory analyses showed dense glistenings in the central layer of the IOL optic, which had no change next to the surface. Further studies on these phenomena are needed.

  17. Analysing the connectivity and communication of suicidal users on twitter. (United States)

    Colombo, Gualtiero B; Burnap, Pete; Hodorog, Andrei; Scourfield, Jonathan


    In this paper we aim to understand the connectivity and communication characteristics of Twitter users who post content subsequently classified by human annotators as containing possible suicidal intent or thinking, commonly referred to as suicidal ideation. We achieve this understanding by analysing the characteristics of their social networks. Starting from a set of human annotated Tweets we retrieved the authors' followers and friends lists, and identified users who retweeted the suicidal content. We subsequently built the social network graphs. Our results show a high degree of reciprocal connectivity between the authors of suicidal content when compared to other studies of Twitter users, suggesting a tightly-coupled virtual community. In addition, an analysis of the retweet graph has identified bridge nodes and hub nodes connecting users posting suicidal ideation with users who were not, thus suggesting a potential for information cascade and risk of a possible contagion effect. This is particularly emphasised by considering the combined graph merging friendship and retweeting links.

  18. Analyse pire cas exact du réseau AFDX


    Adnan, Muhammad


    L'objectif principal de cette thèse est de proposer les méthodes permettant d'obtenir le délai de transmission de bout en bout pire cas exact d'un réseau AFDX. Actuellement, seules des bornes supérieures pessimistes peuvent être calculées en utilisant les approches de type Calcul Réseau ou par Trajectoires. Pour cet objectif, différentes approches et outils existent et ont été analysées dans le contexte de cette thèse. Cette analyse a mis en évidence le besoin de nouvelles approches. Dans un ...

  19. Analysing the implemented curriculum of mathematics in preschool education (United States)

    Zacharos, Konstantinos; Koustourakis, Gerasimos; Papadimitriou, Konstantina


    The purpose of this paper is to contribute to development of research tools for observation and analysis of educational practices used by teachers in preschool classrooms. More specifically, we approached the implemented curriculum of mathematics in Greek preschool education. We analysed the recorded data from a week of teaching practices in eight classrooms of Greek public kindergartens, based on Bernstein's theoretical framework on pedagogic discourse. The results showed that the actual educational practices in the observed classrooms deviated from the objectives of the official new cross-thematic curriculum for teaching mathematics in Greek kindergarten in terms of the form of transmitted mathematical knowledge, the instructional rules and strategies that teachers adopted for teaching mathematics, and the teaching-interactive relationships between preschool teachers and students.

  20. Hydrostar Thermal and Structural Deformation Analyses of Antenna Array Concept (United States)

    Amundsen, Ruth M.; Hope, Drew J.


    The proposed Hydrostar mission used a large orbiting antenna array to demonstrate synthetic aperture technology in space while obtaining global soil moisture data. In order to produce accurate data, the array was required to remain as close as possible to its perfectly aligned placement while undergoing the mechanical and thermal stresses induced by orbital changes. Thermal and structural analyses for a design concept of this antenna array were performed. The thermal analysis included orbital radiation calculations, as well as parametric studies of orbit altitude, material properties and coating types. The thermal results included predicted thermal distributions over the array for several cases. The structural analysis provided thermally-driven deflections based on these cases, as well as based on a 1-g inertial load. In order to minimize the deflections of the array in orbit, the use of XN70, a carbon-reinforced polycyanate composite, was recommended.

  1. The past, present and future of microbiome analyses

    Energy Technology Data Exchange (ETDEWEB)

    White, Richard Allen; Callister, Stephen J.; Moore, Ronald J.; Baker, Erin S.; Jansson, Janet K.


    Microbes evolved on Earth approximately 3.5 billion years ago and eventually occupied every habitable environment in its biosphere. While microorganisms are responsible for key functions on Earth including carbon and nutrient cycling and determining the health and disease of its inhabitants (i.e. plants and animals), >99% of the estimated trillions of microbes have yet to be discovered.1 In addition, high microbial diversity has made it difficult to study specific functions carried out by complex microbial communities within "microbiomes", such as those inhabiting the soil and human gut.2,3 Fortunately, technological advances over the last few decades have greatly facilitated studies of complex microbiomes and their functions. Here we will specifically discuss advances related to nucleic acid sequencing and mass spectrometry analyses that have enabled exploration and understanding of complex microbiomes in a range of environments and our own bodies.4,5,6,7

  2. Energy and exergy analyses of thermal power plants: A review

    Energy Technology Data Exchange (ETDEWEB)

    Kaushik, S.C.; Reddy, V.S.; Tyagi, S.K. [Indian Institute of Technology Delhi, New Delhi (India). Centre for Energy Studies


    The energy supply to demand narrowing down day by day around the world, the growing demand of power has made the power plants of scientific interest, but most of the power plants are designed by the energetic performance criteria based on first law of thermodynamics only. The real useful energy loss cannot be justified by the fist law of thermodynamics, because it does not differentiate between the quality and quantity of energy. The present study deals with the comparison of energy and exergy analyses of thermal power plants stimulated by coal and gas. This article provides a detailed review of different studies on thermal power plants over the years. This review would also throw light on the scope for further research and recommendations for improvement in the existing thermal power plants.

  3. Beyond innovation. Towards an extended framework for analysing technology policy

    Directory of Open Access Journals (Sweden)

    Knut Sørensen


    Full Text Available This paper analyses technology policy as a scholarly concern and political practice that needs to be taken beyond the present somewhat singular focus on innovation and deployment. We also need to include an interest in the making of infrastructure, the provision of regulations, and democratic engagement. Consequently, this paper introduces the concepts of socialisation and domestication to overcome the instrumental, economic framing of technology policy. These concepts highlight the importance of embedding and enacting new technology. The suggested conceptual framework is used in a brief synthetic analysis of four examples of technology policy and technological development in the Norwegian context: cars, wind power, hydrogen for transport, and carbon capture and storage (CCS.

  4. Reproducible analyses of microbial food for advanced life support systems (United States)

    Petersen, Gene R.


    The use of yeasts in controlled ecological life support systems (CELSS) for microbial food regeneration in space required the accurate and reproducible analysis of intracellular carbohydrate and protein levels. The reproducible analysis of glycogen was a key element in estimating overall content of edibles in candidate yeast strains. Typical analytical methods for estimating glycogen in Saccharomyces were not found to be entirely aplicable to other candidate strains. Rigorous cell lysis coupled with acid/base fractionation followed by specific enzymatic glycogen analyses were required to obtain accurate results in two strains of Candida. A profile of edible fractions of these strains was then determined. The suitability of yeasts as food sources in CELSS food production processes is discussed.

  5. Advanced composite turboprops - Modeling, structural, and dynamic analyses (United States)

    Aiello, R. A.; Chi, S.


    This paper presents a structural and dynamic analysis of a scaled-down wind tunnel model propfan blade made from fiber composites. This blade is one of a series of propfan blades that have been tested at the NASA Lewis Research Center wind tunnel facilities. The blade is highly swept and twisted and of the spar/shell construction. Due to the complexity of the blade geometry and its high performance, it is subjected to much higher loads and tends to be much less stable than conventional blades. The structural and dynamic analyses of the blade were performed using the NASA-Lewis COBSTRAN computer code. COBSTRAN is designed to generate the mesh and calculate the anisotropic material properties for composite blade analysis. Comparison of analytical and experimental mode shapes and frequencies are shown, verifying the model development and analysis techniques used. The methodologies and programs developed for this analysis are directly applicable to other propfan blades.

  6. Road user behaviour analyses based on video detections

    DEFF Research Database (Denmark)

    Agerholm, Niels; Tønning, Charlotte; Madsen, Tanja Kidholm Osmann


    has been developed. It works as a watchdog – if a passing road user affects defined part(s) of the video frame, RUBA records the time of the activity. It operates with three type of detectors (defined parts of the video frame): 1) if a road user passes the detector independent of the direction, 2......) if a road user passes the area in one pre-adjusted specific direction and 3) if a road user is standing still in the detector area. Also, RUBA can be adjusted so it registers massive entities (e.g. cars) while less massive ones (e.g. cyclists) are not registered. The software has been used for various...... analyses of traffic behaviour: traffic counts with and without removal of different modes of transportation, traffic conflicts, traffic behaviour for specific traffic flows and modes and comparisons of speeds in rebuilt road areas. While there is still space for improvement regarding data treatment speed...

  7. Analyses of bundle experiment data using MATRA-h

    Energy Technology Data Exchange (ETDEWEB)

    Lim, In Cheol; Chea, Hee Taek [Korea Atomic Energy Research Institute, Taejon (Korea)


    When the construction and operation license for HANARO was renewed in 1995, 25% of CHF penalty was imposed. The reason for this was that the validation work related to the CHF design calculation was not enough for the assurance of CHF margin. As a part of the works to recover this CHF penalty, MATRA-h was developed by implementing the new correlations for the heat transfer, CHF prediction, subcooled void to the MATRA-a, which is the modified version of COBRA-IV-I done by KAERI. Using MATRA-h, the subchannel analyses for the bundle experiment data were performed. The comparison of the code predictions with the experimental results, it was found that the code would give the conservative predictions as far as the CHF in the bundle geometry is concerned. (author). 12 refs., 25 figs., 16 tabs.

  8. Analysing clinical practice guidelines. A method of documentary analysis. (United States)

    Appleton, J V; Cowley, S


    This paper will describe a method of documentary analysis used in a study examining the validity of clinical guidelines issued to health visitors to assist them in identifying families requiring increased health visitor support. This forms the preliminary work for a wider study examining how health visitors decide to increase support to vulnerable families. Although a number of published research texts discuss the value of records and documents as important data sources for health service researchers, there is relatively little information available about the processes of documentary analysis. This paper offers one method for analysing clinical practice guidelines, it describes the development of a critique and analysis tool and explores the strengths and weaknesses of this particular analysis instrument.

  9. Analysing Incentive and Cost Sharing Issues in Livestock Disease Management

    DEFF Research Database (Denmark)

    Biira, Juliet

    This PhD thesis tackles two main issues in livestock health management: a) the incentives for animal disease prevention on Danish livestock farms and b) allocation of costs of animal disease outbreaks and animal disease preparedness, among stakeholders involved in the livestock sector. The main....... Paper 5 uses a theoretical approach to analyse the normative foundation of allocation rules that can be used in sharing costs related to animal disease preparedness. We assume that effort incurred by the relevant government authority cannot be observed by the farmers and construct a liability index...... be arranged and lastly, a theoretical contribution to how disease preparedness costs could be shared. An exploration of literature on issues regarding animal disease prevention in the Danish livestock sector is used in paper 1, while an empirical approach is used in paper 2, 3 and 4. A theoretical approach...

  10. SPSS and SAS programs for generalizability theory analyses. (United States)

    Mushquash, Christopher; O'Connor, Brian P


    The identification and reduction of measurement errors is a major challenge in psychological testing. Most investigators rely solely on classical test theory for assessing reliability, whereas most experts have long recommended using generalizability theory instead. One reason for the common neglect of generalizability theory is the absence of analytic facilities for this purpose in popular statistical software packages. This article provides a brief introduction to generalizability theory, describes easy to use SPSS, SAS, and MATLAB programs for conducting the recommended analyses, and provides an illustrative example, using data (N = 329) for the Rosenberg Self-Esteem Scale. Program output includes variance components, relative and absolute errors and generalizability coefficients, coefficients for D studies, and graphs of D study results.

  11. A protocol to analyse cellular dynamics during plant development. (United States)

    de Reuille, Pierre Barbier; Bohn-Courseau, Isabelle; Godin, Christophe; Traas, Jan


    In vivo microscopy generates images that contain complex information on the dynamic behaviour of three-dimensional (3D) objects. As a result, adapted mathematical and computational tools are required to help in their interpretation. Ideally, a complete software chain to study the dynamics of a complex 3D object should include: (i) the acquisition, (ii) the preprocessing and (iii) segmentation of the images, followed by (iv) a reconstruction in time and space and (v) the final quantitative analysis. Here, we have developed such a protocol to study cell dynamics at the shoot apical meristem in Arabidopsis. The protocol uses serial optical sections made with the confocal microscope. It includes specially designed algorithms to automate the identification of cell lineage and to analyse the quantitative behaviour of the meristem surface.

  12. Trend analyses of sediment data for the DEC project (United States)

    Rebich, Richard Allen


    Daily stream discharge, suspended-sediment concentration, and suspended-sediment discharge data were collected at eight sites in six watersheds of the Demonstration Erosion Control project in the Yazoo River Basin in north-central Mississippi during the period July 1985 through September 1991. The project is part of an ongoing interagency program of planning, design, construction, monitoring, and evaluation to alleviate flooding, erosion, sedimentation, and water-quality problems for watersheds located in the bluff hills upstream of the Mississippi River alluvial plain. This paper presents preliminary results of trend analyses for stream discharge and sediment data for the eight project sites. More than 550 stream discharge measurements and 20,000 suspended-sediment samples have been collected at the eight sites since 1985.

  13. Dipole model test with one superconducting coil; results analysed

    CERN Document Server

    Durante, M; Ferracin, P; Fessia, P; Gauthier, R; Giloux, C; Guinchard, M; Kircher, F; Manil, P; Milanese, A; Millot, J-F; Muñoz Garcia, J-E; Oberli, L; Perez, J-C; Pietrowicz, S; Rifflet, J-M; de Rijk, G; Rondeaux, F; Todesco, E; Viret, P; Ziemianski, D


    This report is the deliverable report 7.3.1 “Dipole model test with one superconducting coil; results analysed “. The report has four parts: “Design report for the dipole magnet”, “Dipole magnet structure tested in LN2”, “Nb3Sn strand procured for one dipole magnet” and “One test double pancake copper coil made”. The 4 report parts show that, although the magnet construction will be only completed by end 2014, all elements are present for a successful completion. Due to the importance of the project for the future of the participants and given the significant investments done by the participants, there is a full commitment to finish the project.

  14. Dipole model test with one superconducting coil: results analysed

    CERN Document Server

    Bajas, H; Benda, V; Berriaud, C; Bajko, M; Bottura, L; Caspi, S; Charrondiere, M; Clément, S; Datskov, V; Devaux, M; Durante, M; Fazilleau, P; Ferracin, P; Fessia, P; Gauthier, R; Giloux, C; Guinchard, M; Kircher, F; Manil, P; Milanese, A; Millot, J-F; Muñoz Garcia, J-E; Oberli, L; Perez, J-C; Pietrowicz, S; Rifflet, J-M; de Rijk, G; Rondeaux, F; Todesco, E; Viret, P; Ziemianski, D


    This report is the deliverable report 7.3.1 “Dipole model test with one superconducting coil; results analysed “. The report has four parts: “Design report for the dipole magnet”, “Dipole magnet structure tested in LN2”, “Nb3Sn strand procured for one dipole magnet” and “One test double pancake copper coil made”. The 4 report parts show that, although the magnet construction will be only completed by end 2014, all elements are present for a successful completion. Due to the importance of the project for the future of the participants and given the significant investments done by the participants, there is a full commitment to finish the project.


    Directory of Open Access Journals (Sweden)

    Duje Bonacci


    Full Text Available During the last decade, the advance of Internet has enabled the emergence of previously nonexistent type of human social structures - virtual 'online' communities. As compared to the traditional communities, online communities are distinguished by the drastic reduction of the requirement for the physical proximity and geographical clustering of their members. The primary cause of this shift away from ‘physically concentrated’ communities to dispersed virtual ones is new long distance communication tools that Internet has provided. Along with the increase in quantity of communication that the new technology brought about, it also strongly influenced its quality. The paper suggests two simple mathematical tools for analysing the ‘soft’ (qualitative sociological internal properties of virtual communities. The suggested tools are applied and their utility discussed on the example of one such virtual community, Croatian NGO ‘Society’.

  16. Qualitative and Quantitative Analyses of Glycogen in Human Milk. (United States)

    Matsui-Yatsuhashi, Hiroko; Furuyashiki, Takashi; Takata, Hiroki; Ishida, Miyuki; Takumi, Hiroko; Kakutani, Ryo; Kamasaka, Hiroshi; Nagao, Saeko; Hirose, Junko; Kuriki, Takashi


    Identification as well as a detailed analysis of glycogen in human milk has not been shown yet. The present study confirmed that glycogen is contained in human milk by qualitative and quantitative analyses. High-performance anion exchange chromatography (HPAEC) and high-performance size exclusion chromatography with a multiangle laser light scattering detector (HPSEC-MALLS) were used for qualitative analysis of glycogen in human milk. Quantitative analysis was carried out by using samples obtained from the individual milks. The result revealed that the concentration of human milk glycogen varied depending on the mother's condition-such as the period postpartum and inflammation. The amounts of glycogen in human milk collected at 0 and 1-2 months postpartum were higher than in milk collected at 3-14 months postpartum. In the milk from mothers with severe mastitis, the concentration of glycogen was about 40 times higher than that in normal milk.

  17. Automated high-throughput behavioral analyses in zebrafish larvae. (United States)

    Richendrfer, Holly; Créton, Robbert


    We have created a novel high-throughput imaging system for the analysis of behavior in 7-day-old zebrafish larvae in multi-lane plates. This system measures spontaneous behaviors and the response to an aversive stimulus, which is shown to the larvae via a PowerPoint presentation. The recorded images are analyzed with an ImageJ macro, which automatically splits the color channels, subtracts the background, and applies a threshold to identify individual larvae placement in the lanes. We can then import the coordinates into an Excel sheet to quantify swim speed, preference for edge or side of the lane, resting behavior, thigmotaxis, distance between larvae, and avoidance behavior. Subtle changes in behavior are easily detected using our system, making it useful for behavioral analyses after exposure to environmental toxicants or pharmaceuticals.

  18. Modifying measures based on differential item functioning (DIF) impact analyses. (United States)

    Teresi, Jeanne A; Ramirez, Mildred; Jones, Richard N; Choi, Seung; Crane, Paul K


    Measure modification can impact comparability of scores across groups and settings. Changes in items can affect the percent admitting to a symptom. Using item response theory (IRT) methods, well-calibrated items can be used interchangeably, and the exact same item does not have to be administered to each respondent, theoretically permitting wider latitude in terms of modification. Recommendations regarding modifications vary, depending on the use of the measure. In the context of research, adjustments can be made at the analytic level by freeing and fixing parameters based on findings of differential item functioning (DIF). The consequences of DIF for clinical decision making depend on whether or not the patient's performance level approaches the scale decision cutpoint. High-stakes testing may require item removal or separate calibrations to ensure accurate assessment. Guidelines for modification based on DIF analyses and illustrations of the impact of adjustments are presented.

  19. Plant DNA sequencing for phylogenetic analyses: from plants to sequences. (United States)

    Neves, Susana S; Forrest, Laura L


    DNA sequences are important sources of data for phylogenetic analysis. Nowadays, DNA sequencing is a routine technique in molecular biology laboratories. However, there are specific questions associated with project design and sequencing of plant samples for phylogenetic analysis, which may not be familiar to researchers starting in the field. This chapter gives an overview of methods and protocols involved in the sequencing of plant samples, including general recommendations on the selection of species/taxa and DNA regions to be sequenced, and field collection of plant samples. Protocols of plant sample preparation, DNA extraction, PCR and cloning, which are critical to the success of molecular phylogenetic projects, are described in detail. Common problems of sequencing (using the Sanger method) are also addressed. Possible applications of second-generation sequencing techniques in plant phylogenetics are briefly discussed. Finally, orientation on the preparation of sequence data for phylogenetic analyses and submission to public databases is also given.

  20. Analyses of anticancer drugs by capillary electrophoresis: a review. (United States)

    Ali, Imran; Haque, Ashanul; Wani, Waseem A; Saleem, Kishwar; Al Za'abi, Mohammed


    Capillary electrophoresis is a fast, inexpensive and low detection limit technique for the analysis of anticancer drugs. It has been used to analyze various anticancer drugs in biological samples, pharmaceutical preparations and environmental matrices. It has also been used to detect various cancer biomarkers in cancer patients. The present article describes the state-of-the art of capillary electrophoresis for the analyses of anticancer drugs. Various drugs discussed belong to several groups such as antimitotic agents, nucleoside analogs, antibiotics, topoisomerase inhibitors and DNA intercalating agents. In addition, efforts have also been made to discuss sample preparation, applications of capillary electrophoresis in genomic research, optimization and future perspectives. Copyright © 2013 John Wiley & Sons, Ltd.

  1. Comparative Transcriptional Analyses of Francisella tularensis and Francisella novicida.

    Directory of Open Access Journals (Sweden)

    Siva T Sarva

    Full Text Available Francisella tularensis is composed of a number of subspecies with varied geographic distribution, host ranges, and virulence. In view of these marked differences, comparative functional genomics may elucidate some of the molecular mechanism(s behind these differences. In this study a shared probe microarray was designed that could be used to compare the transcriptomes of Francisella tularensis subsp. tularensis Schu S4 (Ftt, Francisella tularensis subsp. holarctica OR960246 (Fth, Francisella tularensis subsp. holarctica LVS (LVS, and Francisella novicida U112 (Fn. To gain insight into expression differences that may be related to the differences in virulence of these subspecies, transcriptomes were measured from each strain grown in vitro under identical conditions, utilizing a shared probe microarray. The human avirulent Fn strain exhibited high levels of transcription of genes involved in general metabolism, which are pseudogenes in the human virulent Ftt and Fth strains, consistent with the process of genome decay in the virulent strains. Genes encoding an efflux system (emrA2 cluster of genes, siderophore (fsl operon, acid phosphatase, LPS synthesis, polyamine synthesis, and citrulline ureidase were all highly expressed in Ftt when compared to Fn, suggesting that some of these may contribute to the relative high virulence of Ftt. Genes expressed at a higher level in Ftt when compared to the relatively less virulent Fth included genes encoding isochorismatases, cholylglycine hydrolase, polyamine synthesis, citrulline ureidase, Type IV pilus subunit, and the Francisella Pathogenicity Island protein PdpD. Fth and LVS had very few expression differences, consistent with the derivation of LVS from Fth. This study demonstrated that a shared probe microarray designed to detect transcripts in multiple species/subspecies of Francisella enabled comparative transcriptional analyses that may highlight critical differences that underlie the relative

  2. Association and linkage analyses of RGS4 polymorphisms in schizophrenia. (United States)

    Chowdari, Kodavali V; Mirnics, Karoly; Semwal, Prachi; Wood, Joel; Lawrence, Elizabeth; Bhatia, Triptish; Deshpande, Smita N; B K, Thelma; Ferrell, Robert E; Middleton, Frank A; Devlin, Bernie; Levitt, Pat; Lewis, David A; Nimgaonkar, Vishwajit L


    Gene expression analyses of postmortem cerebral cortex suggest that transcription of the regulator of G-protein signaling 4 (RGS4) is decreased in a diagnosis-specific manner in subjects with schizophrenia. To evaluate the possible role of RGS4 in the pathogenesis of schizophrenia, we conducted genetic association and linkage studies using samples ascertained independently in Pittsburgh and New Delhi and by the NIMH Collaborative Genetics Initiative. Using the transmission disequilibrium test, significant transmission distortion was observed in the Pittsburgh and NIMH samples. Among single-nucleotide polymorphisms (SNPs) spanning approximately 300 kb, significant associations involved four SNPs localized to a 10 kb region at RGS4, but the associated haplotypes differed. A trend for transmission distortion was also present in the Indian sample for haplotypes incorporating the same SNPs. Consistent with the linkage/association observed from the family-based tests, samples with affected siblings (NIMH, India) showed higher levels of allele sharing, identical by descent, at RGS4. When the US patients were contrasted to two population-based control samples, however, no significant differences were observed. To check the specificity of the transmission bias, we therefore examined US families with bipolar I disorder (BD1) probands. This sample also showed a trend for transmission distortion, and differed significantly from the population-based controls for the four-SNP haplotypes tested in the other samples. The transmission distortion is unlikely to be due to chance, but its mechanism and specificity require further study. Our results illustrate the potential power of combining gene expression profiling and genomic analyses to identify susceptibility genes for genetically complex disorders.

  3. Analysing the hidden curriculum: use of a cultural web. (United States)

    Mossop, Liz; Dennick, Reg; Hammond, Richard; Robbé, Iain


    Major influences on learning about medical professionalism come from the hidden curriculum. These influences can contribute positively or negatively towards the professional enculturation of clinical students. The fact that there is no validated method for identifying the components of the hidden curriculum poses problems for educators considering professionalism. The aim of this study was to analyse whether a cultural web, adapted from a business context, might assist in the identification of elements of the hidden curriculum at a UK veterinary school. A qualitative approach was used. Seven focus groups consisting of three staff groups and four student groups were organised. Questioning was framed using the cultural web, which is a model used by business owners to assess their environment and consider how it affects their employees and customers. The focus group discussions were recorded, transcribed and analysed thematically using a combination of a priori and emergent themes. The cultural web identified elements of the hidden curriculum for both students and staff. These included: core assumptions; routines; rituals; control systems; organisational factors; power structures, and symbols. Discussions occurred about how and where these issues may affect students' professional identity development. The cultural web framework functioned well to help participants identify elements of the hidden curriculum. These aspects aligned broadly with previously described factors such as role models and institutional slang. The influence of these issues on a student's development of a professional identity requires discussion amongst faculty staff, and could be used to develop learning opportunities for students. The framework is promising for the analysis of the hidden curriculum and could be developed as an instrument for implementation in other clinical teaching environments. © Blackwell Publishing Ltd 2013.

  4. Analysing Discourse. An Approach From the Sociology of Knowledge

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    Reiner Keller


    Full Text Available The contribution outlines a research pro­gramme which I have coined the "sociology of knowledge approach to discourse" (Wissens­sozio­logische Diskursanalyse. This approach to dis­course integrates important insights of FOU­CAULT's theory of discourse into the interpretative paradigm in the social sciences, especially the "German" approach of hermeneutic sociology of knowledge (Hermeneutische Wissenssoziologie. Accordingly, in this approach discourses are con­sidered as "structured and structuring structures" which shape social practices of enunciation. Un­like some Foucauldian approaches, this form of discourse analysis recognises the importance of socially constituted actors in the social production and circulation of knowledge. Furthermore, it com­bines research questions related to the concept of "discourse" with the methodical toolbox of qual­itative social research. Going beyond ques­tions of language in use, "the sociology of knowl­edge ap­proach to discourse" (Wissenssozio­logi­sche Dis­kurs­analyse addresses sociological inter­ests, the analyses of social relations and politics of knowl­edge as well as the discursive construction of re­al­ity as an empirical ("material" process. For empiri­cal research on discourse the approach proposes the use of analytical concepts from the sociology of knowledge tradition, such as inter­pretative schemes or frames (Deutungsmuster, "clas­sifi­ca­tions", "phenomenal structure" (Phäno­men­struktur, "narrative structure", "dispositif" etc., and the use of the methodological strategies of "grounded theory". URN: urn:nbn:de:0114-fqs0503327

  5. Genetic analyses of bolting in bulb onion (Allium cepa L.). (United States)

    Baldwin, Samantha; Revanna, Roopashree; Pither-Joyce, Meeghan; Shaw, Martin; Wright, Kathryn; Thomson, Susan; Moya, Leire; Lee, Robyn; Macknight, Richard; McCallum, John


    We present the first evidence for a QTL conditioning an adaptive trait in bulb onion, and the first linkage and population genetics analyses of candidate genes involved in photoperiod and vernalization physiology. Economic production of bulb onion (Allium cepa L.) requires adaptation to photoperiod and temperature such that a bulb is formed in the first year and a flowering umbel in the second. 'Bolting', or premature flowering before bulb maturation, is an undesirable trait strongly selected against by breeders during adaptation of germplasm. To identify genome regions associated with adaptive traits we conducted linkage mapping and population genetic analyses of candidate genes, and QTL analysis of bolting using a low-density linkage map. We performed tagged amplicon sequencing of ten candidate genes, including the FT-like gene family, in eight diverse populations to identify polymorphisms and seek evidence of differentiation. Low nucleotide diversity and negative estimates of Tajima's D were observed for most genes, consistent with purifying selection. Significant population differentiation was observed only in AcFT2 and AcSOC1. Selective genotyping in a large 'Nasik Red × CUDH2150' F2 family revealed genome regions on chromosomes 1, 3 and 6 associated (LOD > 3) with bolting. Validation genotyping of two F2 families grown in two environments confirmed that a QTL on chromosome 1, which we designate AcBlt1, consistently conditions bolting susceptibility in this cross. The chromosome 3 region, which coincides with a functionally characterised acid invertase, was not associated with bolting in other environments, but showed significant association with bulb sucrose content in this and other mapping pedigrees. These putative QTL and candidate genes were placed on the onion map, enabling future comparative studies of adaptive traits.

  6. [Foucault's concept of gouvernmentality: an instrument to analyse nursing science]. (United States)

    Friesacher, Heiner


    The following article will present the concept of gouvernmentality by the French philosopher Michel Foucault (1926-1984). I will point out in which way his idea could be applied to nursing science. The notion gouvernmentality goes back to the late works of Michel Foucault. The idea of gouvernmentality continues, broadens and shifts the stress of his influential work on the analysis of power. The strategic concept of power is not sufficient to investigate from a consistent analytical perspective into the complex problems of the state and subjectivity. Only Foucault's findings of the notion and the concept of gouvernmentality has come up to an adequate analytical method. Relations of power are investigated from the point of view and hereby social technologies and self-technologies can be analysed in relation to each other The analysis of neo-liberal gouvernmentality finally succeeds by using this broadening of perspective. A new definition of state and economy can be revealed: the market turns into a regulating principle and economics grasps all kinds of human actions and proceedings. Apart from a few exceptions the hitherto Foucault-reception in nursing science does not follow the late works of Foucault and limits its research possibilities. In this article I will analyse examples of the quality discourse and the problems of an interpretation of needs. It will be shown how both areas might shape patients as well as nurses in the sense of neo-liberal subject formation and how finally the act and art of nursing will be transformed into an act of economics.

  7. Psychometric analyses to improve the Dutch ICF Activity Inventory. (United States)

    Bruijning, Janna E; van Rens, Ger; Knol, Dirk; van Nispen, Ruth


    In the past, rehabilitation centers for the visually impaired used unstructured or semistructured methods to assess rehabilitation needs of their patients. Recently, an extensive instrument, the Dutch ICF Activity Inventory (D-AI), was developed to systematically investigate rehabilitation needs of visually impaired adults and to evaluate rehabilitation outcomes. The purpose of this study was to investigate the underlying factor structure and other psychometric properties to shorten and improve the D-AI. The D-AI was administered to 241 visually impaired persons who recently enrolled in a multidisciplinary rehabilitation center. The D-AI uses graded scores to assess the importance and difficulty of 65 rehabilitation goals. For high-priority goals (e.g., daily meal preparation), the difficulty of underlying tasks (e.g., read recipes, cut vegetables) was assessed. To reduce underlying task items (>950), descriptive statistics were investigated and factor analyses were performed for several goals. The internal consistency reliability and test-retest reliability of the D-AI were investigated by calculating Cronbach α and Cohen (weighted) κ. Finally, consensus-based discussions were used to shorten and improve the D-AI. Except for one goal, factor analysis model parameters were at least reasonable. Internal consistency reliability was satisfactory (range, 0.74 to 0.93). In total, 60% of the 65 goal importance items and 84.4% of the goal difficulty items showed moderate to almost perfect κ values (≥0.40). After consensus-based discussions, a new D-AI was produced, containing 48 goals and less than 500 tasks. The analyses were an important step in the validation process of the D-AI and to develop a more feasible assessment tool to investigate rehabilitation needs of visually impaired persons in a systematic way. The D-AI is currently implemented in all Dutch rehabilitation centers serving all visually impaired adults with various rehabilitation needs.

  8. Time-frequency analyses of tide-gauge sensor data. (United States)

    Erol, Serdar


    The real world phenomena being observed by sensors are generally non-stationary in nature. The classical linear techniques for analysis and modeling natural time-series observations are inefficient and should be replaced by non-linear techniques of whose theoretical aspects and performances are varied. In this manner adopting the most appropriate technique and strategy is essential in evaluating sensors' data. In this study, two different time-series analysis approaches, namely least squares spectral analysis (LSSA) and wavelet analysis (continuous wavelet transform, cross wavelet transform and wavelet coherence algorithms as extensions of wavelet analysis), are applied to sea-level observations recorded by tide-gauge sensors, and the advantages and drawbacks of these methods are reviewed. The analyses were carried out using sea-level observations recorded at the Antalya-II and Erdek tide-gauge stations of the Turkish National Sea-Level Monitoring System. In the analyses, the useful information hidden in the noisy signals was detected, and the common features between the two sea-level time series were clarified. The tide-gauge records have data gaps in time because of issues such as instrumental shortcomings and power outages. Concerning the difficulties of the time-frequency analysis of data with voids, the sea-level observations were preprocessed, and the missing parts were predicted using the neural network method prior to the analysis. In conclusion the merits and limitations of the techniques in evaluating non-stationary observations by means of tide-gauge sensors records were documented and an analysis strategy for the sequential sensors observations was presented.

  9. Combustion Stability Analyses for J-2X Gas Generator Development (United States)

    Hulka, J. R.; Protz, C. S.; Casiano, M. J.; Kenny, R. J.


    The National Aeronautics and Space Administration (NASA) is developing a liquid oxygen/liquid hydrogen rocket engine for upper stage and trans-lunar applications of the Ares vehicles for the Constellation program. This engine, designated the J-2X, is a higher pressure, higher thrust variant of the Apollo-era J-2 engine. Development was contracted to Pratt & Whitney Rocketdyne in 2006. Over the past several years, development of the gas generator for the J-2X engine has progressed through a variety of workhorse injector, chamber, and feed system configurations. Several of these configurations have resulted in injection-coupled combustion instability of the gas generator assembly at the first longitudinal mode of the combustion chamber. In this paper, the longitudinal mode combustion instabilities observed on the workhorse test stand are discussed in detail. Aspects of this combustion instability have been modeled at the NASA Marshall Space Flight Center with several codes, including the Rocket Combustor Interaction Design and Analysis (ROCCID) code and a new lumped-parameter MatLab model. To accurately predict the instability characteristics of all the chamber and injector geometries and test conditions, several features of the submodels in the ROCCID suite of calculations required modification. Finite-element analyses were conducted of several complicated combustion chamber geometries to determine how to model and anchor the chamber response in ROCCID. A large suite of sensitivity calculations were conducted to determine how to model and anchor the injector response in ROCCID. These modifications and their ramification for future stability analyses of this type are discussed in detail. The lumped-parameter MatLab model of the gas generator assembly was created as an alternative calculation to the ROCCID methodology. This paper also describes this model and the stability calculations.

  10. CVD diamond Brewster window: feasibility study by FEM analyses

    Directory of Open Access Journals (Sweden)

    Vaccaro A.


    Full Text Available Chemical vapor deposition (CVD diamond windows are a crucial component in heating and current drive (H&CD applications. In order to minimize the amount of reflected power from the diamond disc, its thickness must match the desired beam wavelength, thus proper targeting of the plasma requires movable beam reflectors. This is the case, for instance, of the ITER electron cyclotron H&CD system. However, looking at DEMO, the higher heat loads and neutron fluxes could make the use of movable parts close to the plasma difficult. The issue might be solved by using gyrotrons able to tune the beam frequency to the desired resonance, but this concept requires transmission windows that work in a given frequency range, such as the Brewster window. It consists of a CVD diamond disc brazed to two copper cuffs at the Brewster angle. The brazing process is carried out at about 800°C and then the temperature is decreased down to room temperature. Diamond and copper have very different thermal expansion coefficients, therefore high stresses build up during the cool down phase that might lead to failure of the disc. Considering also the complex geometry of the window with the skewed position of the disc, analyses are required in the first place to check its feasibility. The cool down phase was simulated by FEM structural analyses for several geometric and constraint configurations of the window. A study of indirect cooling of the window by water was also performed considering a HE11 mode beam. The results are here reported.

  11. Architecture Level Safety Analyses for Safety-Critical Systems

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    K. S. Kushal


    Full Text Available The dependency of complex embedded Safety-Critical Systems across Avionics and Aerospace domains on their underlying software and hardware components has gradually increased with progression in time. Such application domain systems are developed based on a complex integrated architecture, which is modular in nature. Engineering practices assured with system safety standards to manage the failure, faulty, and unsafe operational conditions are very much necessary. System safety analyses involve the analysis of complex software architecture of the system, a major aspect in leading to fatal consequences in the behaviour of Safety-Critical Systems, and provide high reliability and dependability factors during their development. In this paper, we propose an architecture fault modeling and the safety analyses approach that will aid in identifying and eliminating the design flaws. The formal foundations of SAE Architecture Analysis & Design Language (AADL augmented with the Error Model Annex (EMV are discussed. The fault propagation, failure behaviour, and the composite behaviour of the design flaws/failures are considered for architecture safety analysis. The illustration of the proposed approach is validated by implementing the Speed Control Unit of Power-Boat Autopilot (PBA system. The Error Model Annex (EMV is guided with the pattern of consideration and inclusion of probable failure scenarios and propagation of fault conditions in the Speed Control Unit of Power-Boat Autopilot (PBA. This helps in validating the system architecture with the detection of the error event in the model and its impact in the operational environment. This also provides an insight of the certification impact that these exceptional conditions pose at various criticality levels and design assurance levels and its implications in verifying and validating the designs.

  12. Genome-wide methylation analyses in glioblastoma multiforme.

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    Rose K Lai

    Full Text Available Few studies had investigated genome-wide methylation in glioblastoma multiforme (GBM. Our goals were to study differential methylation across the genome in gene promoters using an array-based method, as well as repetitive elements using surrogate global methylation markers. The discovery sample set for this study consisted of 54 GBM from Columbia University and Case Western Reserve University, and 24 brain controls from the New York Brain Bank. We assembled a validation dataset using methylation data of 162 TCGA GBM and 140 brain controls from dbGAP. HumanMethylation27 Analysis Bead-Chips (Illumina were used to interrogate 26,486 informative CpG sites in both the discovery and validation datasets. Global methylation levels were assessed by analysis of L1 retrotransposon (LINE1, 5 methyl-deoxycytidine (5m-dC and 5 hydroxylmethyl-deoxycytidine (5hm-dC in the discovery dataset. We validated a total of 1548 CpG sites (1307 genes that were differentially methylated in GBM compared to controls. There were more than twice as many hypomethylated genes as hypermethylated ones. Both the discovery and validation datasets found 5 tumor methylation classes. Pathway analyses showed that the top ten pathways in hypomethylated genes were all related to functions of innate and acquired immunities. Among hypermethylated pathways, transcriptional regulatory network in embryonic stem cells was the most significant. In the study of global methylation markers, 5m-dC level was the best discriminant among methylation classes, whereas in survival analyses, high level of LINE1 methylation was an independent, favorable prognostic factor in the discovery dataset. Based on a pathway approach, hypermethylation in genes that control stem cell differentiation were significant, poor prognostic factors of overall survival in both the discovery and validation datasets. Approaches that targeted these methylated genes may be a future therapeutic goal.

  13. Genome-wide methylation analyses in glioblastoma multiforme. (United States)

    Lai, Rose K; Chen, Yanwen; Guan, Xiaowei; Nousome, Darryl; Sharma, Charu; Canoll, Peter; Bruce, Jeffrey; Sloan, Andrew E; Cortes, Etty; Vonsattel, Jean-Paul; Su, Tao; Delgado-Cruzata, Lissette; Gurvich, Irina; Santella, Regina M; Ostrom, Quinn; Lee, Annette; Gregersen, Peter; Barnholtz-Sloan, Jill


    Few studies had investigated genome-wide methylation in glioblastoma multiforme (GBM). Our goals were to study differential methylation across the genome in gene promoters using an array-based method, as well as repetitive elements using surrogate global methylation markers. The discovery sample set for this study consisted of 54 GBM from Columbia University and Case Western Reserve University, and 24 brain controls from the New York Brain Bank. We assembled a validation dataset using methylation data of 162 TCGA GBM and 140 brain controls from dbGAP. HumanMethylation27 Analysis Bead-Chips (Illumina) were used to interrogate 26,486 informative CpG sites in both the discovery and validation datasets. Global methylation levels were assessed by analysis of L1 retrotransposon (LINE1), 5 methyl-deoxycytidine (5m-dC) and 5 hydroxylmethyl-deoxycytidine (5hm-dC) in the discovery dataset. We validated a total of 1548 CpG sites (1307 genes) that were differentially methylated in GBM compared to controls. There were more than twice as many hypomethylated genes as hypermethylated ones. Both the discovery and validation datasets found 5 tumor methylation classes. Pathway analyses showed that the top ten pathways in hypomethylated genes were all related to functions of innate and acquired immunities. Among hypermethylated pathways, transcriptional regulatory network in embryonic stem cells was the most significant. In the study of global methylation markers, 5m-dC level was the best discriminant among methylation classes, whereas in survival analyses, high level of LINE1 methylation was an independent, favorable prognostic factor in the discovery dataset. Based on a pathway approach, hypermethylation in genes that control stem cell differentiation were significant, poor prognostic factors of overall survival in both the discovery and validation datasets. Approaches that targeted these methylated genes may be a future therapeutic goal.

  14. Mass spectrometry-based proteomic analyses of contact lens deposition. (United States)

    Green-Church, Kari B; Nichols, Jason J


    The purpose of this report is to describe the contact lens deposition proteome associated with two silicone hydrogel contact lenses and care solutions using a mass spectrometric-based approach. This was a randomized, controlled, examiner-masked crossover clinical trial that included 48 participants. Lenses and no-rub care solutions evaluated included galyfilcon A (Acuvue Advance, Vistakon Inc., Jacksonville, FL), lotrafilcon B (O2 Optix, CIBA Vision Inc., Duluth, GA), AQuify (CIBA Vision Inc.), and ReNu MoistureLoc (Bausch and Lomb Inc., Rochester, NY). After two weeks of daily wear in each lens-solution combination, the left lens was removed by the examiner (using gloves and forceps) and placed in a protein precipitation buffer (acetone). The precipitate was quantitated for total protein concentration (per lens), and proteins were then identified using liquid chromatography tandem mass spectrometry (nano-LC-MS/MS) and peptide sequencing. Between 7.32 and 9.76 microg/lens of protein was observed on average from each lens-solution combination. There were 19 total unique proteins identified across the two lens materials, and six proteins were identified in all four lens-solution combinations including lipocalin, lysozyme, lacritin, lactoferrin, proline rich 4, and Ig Alpha. Lotrafilcon B was associated with 15 individual proteins (across both care solutions), and 53% of these proteins were observed in at least 50% of the analyses. Galyfilcon A was associated with 13 individual proteins, and 38.5% of these proteins were observed in at least 50% of the analyses. There were three unique proteins identified from galyfilcon A and four unique proteins identified from lotrafilcon B. The total amount of proteins identified from silicone hydrogel materials is much less than the amount from traditional soft lens materials. For the most part, the deposition proteome across these lenses is similar, although the different polymer characteristics might be associated with some

  15. Molecular Microbial Analyses of the Mars Exploration Rovers Assembly Facility (United States)

    Venkateswaran, Kasthuri; LaDuc, Myron T.; Newcombe, David; Kempf, Michael J.; Koke, John. A.; Smoot, James C.; Smoot, Laura M.; Stahl, David A.


    During space exploration, the control of terrestrial microbes associated with robotic space vehicles intended to land on extraterrestrial solar system bodies is necessary to prevent forward contamination and maintain scientific integrity during the search for life. Microorganisms associated with the spacecraft assembly environment can be a source of contamination for the spacecraft. In this study, we have monitored the microbial burden of air samples of the Mars Exploration Rovers' assembly facility at the Kennedy Space Center utilizing complementary diagnostic tools. To estimate the microbial burden and identify potential contaminants in the assembly facility, several microbiological techniques were used including culturing, cloning and sequencing of 16S rRNA genes, DNA microarray analysis, and ATP assays to assess viable microorganisms. Culturing severely underestimated types and amounts of contamination since many of the microbes implicated by molecular analyses were not cultivable. In addition to the cultivation of Agrobacterium, Burkholderia and Bacillus species, the cloning approach retrieved 16s rDNA sequences of oligotrophs, symbionts, and y-proteobacteria members. DNA microarray analysis based on rational probe design and dissociation curves complemented existing molecular techniques and produced a highly parallel, high resolution analysis of contaminating microbial populations. For instance, strong hybridization signals to probes targeting the Bacillus species indicated that members of this species were present in the assembly area samples; however, differences in dissociation curves between perfect-match and air sample sequences showed that these samples harbored nucleotide polymorphisms. Vegetative cells of several isolates were resistant when subjected to treatments of UVC (254 nm) and vapor H202 (4 mg/L). This study further validates the significance of non-cultivable microbes in association with spacecraft assembly facilities, as our analyses have

  16. Treatment outcomes of occult breast carcinoma and prognostic analyses. (United States)

    Wang, Jing; Zhang, Ye-fan; Wang, Xin; Wang, Jian; Yang, Xue; Gao, Yin-qi; Fang, Yi


    The surgical management of occult breast cancer is controversial. We compared the outcomes of different treatments of occult breast cancer and evaluated the potential prognostic factors for overall survival and recurrence. We retrospectively reviewed 77 patients who presented to our hospital from 1968 to 2011 with a diagnosis of occult breast cancer. Patients were divided into three groups: 42 patients (63%) were treated with modified radical mastectomy+axillary lymph node dissection (ALND), 16 patients (24%) were treated with ALND + postoperative radiotherapy, and 9 patients (13%) with only ALND. Survival analyses were undertaken to compare the efficacy of these three treatments. Of the 77 patients with occult breast cancer, 2 patients were lost to follow-up and 8 patients refused surgical treatment: 67 patients (90.4%) were included in this analysis. The median follow-up was 62.2 (0.6-328.0) months. Kaplan-Meier analyses showed no significant difference in overall survival and recurrence-free survival between the three groups (P = 0.494 and 0.397, respectively). The prevalence of local recurrence was 11.9% for the mastectomy + ALND, 18.8% for ALND + radiotherapy, and 11.1% for ALND-only groups, and those for distant recurrence were 2.4%, 12.5%, and 11.1%, respectively. Compared with progesterone receptor-negative subjects, progesterone receptor-positive patients had better overall survival and lower recurrence rates (P = 0.057 and 0.062, respectively). There was no significant difference in outcomes between mastectomy and breast-preserving surgery. Expression of the progesterone receptor should be taken into account when evaluating the prognosis of occult breast cancer.

  17. Analyses of superficial and depth doses in intraoral radiology

    Energy Technology Data Exchange (ETDEWEB)

    Silva Santos de Oliveira, C.; Morais, R.P. de; Nascimento Souza, D. do [Universidade Federal de Sergipe - CCET - Dept. de Fisica, Sao Cristovao, SE (Brazil)


    In this work dosimetric analysis using thermoluminescence technique to study the beams characteristics of x-rays employed in dental radiology has been carried out. The obtained results with CaSO{sub 4}:Dy thermoluminescent dosimeters (TLD) were compared to the doses obtained with parallel-plates ionization chamber. Dosimetric evaluations were also done using radiographic films of large dimensions. The x-rays equipments analyzed were installed in the radiological services of Odontology Department of Sergipe Federal University (U.F.S.). Depending on the anatomical region to be examined the proper exposure time was select, for a fix voltage of 70 kV. The results with TLD and ionization chamber have been determined to female and male individuals. The intraoral regions analysed were the peri apical of the incisors, molar and pre-molar teeth and the occlusive region. These regions were simulated using acrylic plates absorbers installed on the film packet holder. The evaluation of the depth doses in the intraoral tissue was obtained using different acrylic plate thickness. The air kerma values have been evaluated with the ionization chamber located in the dental cone exit of the x-rays equipments. The integrated areas of the thermoluminescent glow curves showed coherent values when compared to the ones obtained with the ionization chamber and both methods presented a linear dependence with the exposition time. The analyses with films have allowed the evaluation of the beam scattering in the simulator apparatus. The studies had proven that the analysis of superficial dose and in depth used in dental radiology can be carried with thermoluminescent dosimeters. (authors)

  18. Vegetable parenting practices scale. Item response modeling analyses. (United States)

    Chen, Tzu-An; O'Connor, Teresia M; Hughes, Sheryl O; Beltran, Alicia; Baranowski, Janice; Diep, Cassandra; Baranowski, Tom


    To evaluate the psychometric properties of a vegetable parenting practices scale using multidimensional polytomous item response modeling which enables assessing item fit to latent variables and the distributional characteristics of the items in comparison to the respondents. We also tested for differences in the ways item function (called differential item functioning) across child's gender, ethnicity, age, and household income groups. Parents of 3-5 year old children completed a self-reported vegetable parenting practices scale online. Vegetable parenting practices consisted of 14 effective vegetable parenting practices and 12 ineffective vegetable parenting practices items, each with three subscales (responsiveness, structure, and control). Multidimensional polytomous item response modeling was conducted separately on effective vegetable parenting practices and ineffective vegetable parenting practices. One effective vegetable parenting practice item did not fit the model well in the full sample or across demographic groups, and another was a misfit in differential item functioning analyses across child's gender. Significant differential item functioning was detected across children's age and ethnicity groups, and more among effective vegetable parenting practices than ineffective vegetable parenting practices items. Wright maps showed items only covered parts of the latent trait distribution. The harder- and easier-to-respond ends of the construct were not covered by items for effective vegetable parenting practices and ineffective vegetable parenting practices, respectively. Several effective vegetable parenting practices and ineffective vegetable parenting practices scale items functioned differently on the basis of child's demographic characteristics; therefore, researchers should use these vegetable parenting practices scales with caution. Item response modeling should be incorporated in analyses of parenting practice questionnaires to better assess


    Directory of Open Access Journals (Sweden)

    Zafer ASLAN


    Full Text Available 1D wavelet and continuous wavelet analyses of some atmospheric parameters (annual mean, maximum and minimum air temperature, relative humidity and annual total precipitation in Şile (Northeastern Black Sea Region of Istanbul between 1939 and 2012 are presented in this paper. The main aim of this study is to extract temporal structure changes of a climatic oscillation of some selected atmospheric parameters. The influence of climatic oscillations based on NO and El-Nino are analyzed for monthly and annual values. Wavelet analyses allowed quantifying both the pattern of variability in the time series and non-stationary associations in general. Mean air temperature values increases associated with decreasing of high frequency (small scale fluctuations and increasing of low frequency (large scale fluctuations in the second term. Increasing ratio of maximum air temperatures are more than mean air temperatures. Meso and small scale fluctuations play an important role on increasing of maximum air temperatures in study area. Large scale fluctuations cause increasing trend of minimum air temperature in the second term. Relative humidity increases beginning from 1976 (industrialization and associates with amplitudes of high frequency fluctuations (small scale evens. Large scale evens have a great importance on this variation at the study area. Annual total rainfall rate values also increase in the second period. Increasing trend of amplitude of high frequency fluctuations are accompany with rainfall increasing. In this period, large scale evens observed every 5 to 20 year periodic modes have a great influence on rainfall increasing. Maximum rainfall rate observations in 1926, 1969-70, 1982-83, 1997-98 and 2009 may be reported strong associations between rainfall and El Nino periodic bands. Warm event matched with increasing values of relative humidity and annual total rainfall rate values

  20. Radiochemical analyses of several spent fuel Approved Testing Materials

    Energy Technology Data Exchange (ETDEWEB)

    Guenther, R.J.; Blahnik, D.E.; Wildung, N.J.


    Radiochemical characterization data are described for UO{sub 2} and UO{sub 2} plus 3 wt% Gd{sub 2}O{sub 3} commercial spent nuclear fuel taken from a series of Approved Testing Materials (ATMs). These full-length nuclear fuel rods include MLA091 of ATM-103, MKP070 of ATM-104, NBD095 and NBD131 of ATM-106, and ADN0206 of ATM-108. ATMs 103, 104, and 106 were all irradiated in the Calvert Cliffs Nuclear Power Plant (Reactor No.1), a pressurized-water reactor that used fuel fabricated by Combustion Engineering. ATM-108 was part of the same fuel bundle designed as ATM-105 and came from boiling-water reactor fuel fabricated by General Electric and irradiated in the Cooper Nuclear Power Plant. Rod average burnups and expected fission gas releases ranged from 2,400 to 3,700 GJ/kgM. (25 to 40 Mwd/kgM) and from less than 1% to greater than 10%, respectively, depending on the specific ATM. The radiochemical analyses included uranium and plutonium isotopes in the fuel, selected fission products in the fuel, fuel burnup, cesium and iodine on the inner surfaces of the cladding, {sup 14}C in the fuel and cladding, and analyses of the gases released to the rod plenum. Supporting examinations such as fuel rod design and material descriptions, power histories, and gamma scans used for sectioning diagrams are also included. These ATMs were examined as part of the Materials Characterization Center Program conducted at Pacific Northwest Laboratory provide a source of well-characterized spent fuel for testing in support of the US Department of Energy Office of Civilian Radioactive Waste Management Program.