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Visual Representation (visual + representation)
Selected AbstractsNineteenth-century population structure of Ireland and of the Irish in England and Wales: An analysis by isonymyAMERICAN JOURNAL OF HUMAN BIOLOGY, Issue 3 2009Malcolm T. Smith This article uses isonymy to test predictions about the genetic structure of Irish populations made on the basis of geography and population history, and compares the mid-nineteenth century population of Ireland with the late nineteenth century Irish-born population resident in England and Wales. Surname data were derived from (1) the householders named in the index to Griffith's valuation of Ireland, a survey undertaken between 1846 and 1864, and (2) of Irish-born residents named in 1881 census of England and Wales. Visual representation of the Griffith's valuation isonymy matrix by multidimensional scaling (MDS) gives a result very close to the geographical distribution of Irish counties, and Mantel matrix correlation shows random isonymy between counties to be negatively associated with geographical distance, generally decaying according to a pattern of isolation-by-distance, with exceptions that can be explained in terms of Irish population history. Some 141,360 Irish-born residents in England and Wales at the 1881 census were assigned to an Irish county of origin, and random isonymy by county of birth for this group also shows a close correspondence to Irish geography. The Mantel matrix correlation between the Irish in Ireland and the Irish in England is 0.855, R2 = 0.7306, indicating that the emigrant Irish in England were representative of the populations of the Irish counties from which they were derived. This result, together with the strong geographical patterning of surnames in Ireland, suggests that isonymy can be used to investigate the population structure and origin of Irish emigrant groups in Britain and potentially throughout the Irish diaspora. Am. J. Hum. Biol. 2009. © 2008 Wiley-Liss, Inc. [source] Verbal and visual representations in task redesign: how different viewpoints enter into information systems design discussionsINFORMATION SYSTEMS JOURNAL, Issue 3 2005Jarmo Sarkkinen Abstract., We explore an important phase of information systems design (ISD), namely task redesign, and especially how different viewpoints enter into the discussions. We study how one particular visual representation, a process diagram, is interpreted and how alternative, even competing, representations are produced verbally. To tie the visual and verbal representations and the representational practices to wider social practices, we develop and use the Extended Three-dimensional Model of discourse. Visual representations emerged as focal in bringing in the different viewpoints and as reference points for discussions. Our model provided a focused and powerful means to unveil for the outside researchers how the planned changes in tasks and authority relationships instigated a social struggle. The IS designer was an outsider to the client organization and therefore considered only the information system, not the social system in which it was intended to operate. Other participants did not recognize this, therefore, seeing the designer as furthering managerial interests. Seeing task redesign in the social context of a client organization can help IS designers and researchers to understand what the users see naturally, that is, the ISD as a dynamic, enabling but socially constrained process where different viewpoints are represented. [source] Interaction-Dependent Semantics for Illustrative Volume RenderingCOMPUTER GRAPHICS FORUM, Issue 3 2008Peter Rautek In traditional illustration the choice of appropriate styles and rendering techniques is guided by the intention of the artist. For illustrative volume visualizations it is difficult to specify the mapping between the 3D data and the visual representation that preserves the intention of the user. The semantic layers concept establishes this mapping with a linguistic formulation of rules that directly map data features to rendering styles. With semantic layers fuzzy logic is used to evaluate the user defined illustration rules in a preprocessing step. In this paper we introduce interaction-dependent rules that are evaluated for each frame and are therefore computationally more expensive. Enabling interaction-dependent rules, however, allows the use of a new class of semantics, resulting in more expressive interactive illustrations. We show that the evaluation of the fuzzy logic can be done on the graphics hardware enabling the efficient use of interaction-dependent semantics. Further we introduce the flat rendering mode and discuss how different rendering parameters are influenced by the rule base. Our approach provides high quality illustrative volume renderings at interactive frame rates, guided by the specification of illustration rules. [source] Examining Contextual Effects in a Practice Analysis: An Application of Dual ScalingEDUCATIONAL MEASUREMENT: ISSUES AND PRACTICE, Issue 3 2007André F. De Champlain Practice analyses are routinely used in support of the development of occupational and professional certification and licensure examinations. These analyses usually survey incumbents to obtain importance ratings of (1) specific tasks and (2) knowledge, skill, and ability (KSA) statements deemed by subject matter experts as essential to safe and effective practice. Several researchers have made important criticisms of traditional practice analysis procedures, particularly the lack of attention to contextual constructs and the resulting problematic interpretation of mean importance ratings. The present study provides a framework for assessing the impact of context in practice analysis studies. It focuses on a practice analysis of a health profession that sought to enhance the meaning of incumbents' importance ratings by embedding the statements in the context of patient acuities. Results indicate that incumbents' importance ratings varied as a function of patient acuity. Dual scaling analysis was used to obtain a multidimensional visual representation of the associations between importance ratings and contextual content. The implications of the contextual component of the study design for future practice analysis studies are discussed as well as possible applications of this approach to professions in education. [source] Image analysis to reveal crack development using a computer simulation of wear and rolling contact fatigueFATIGUE & FRACTURE OF ENGINEERING MATERIALS AND STRUCTURES, Issue 10 2003D. I. FLETCHER ABSTRACT Plastic flow of near-surface rail material under contact loading is a feature of rail,wheel contact, and severe flow typically leads to both wear, and the initiation and development of small surface-breaking cracks. This paper presents results from a ratcheting based computer simulation, which has been developed to allow the simultaneous investigation of wear, crack initiation and early crack propagation. To identify repeatably small crack-like flaws, image analysis is applied to the visual representation of the wearing surface generated by the model. This representation shows a good similarity to traditional micrographs taken from sections of worn surfaces. The model clearly reveals the interaction of wear with crack development, processes which are linked because wear truncates surface-breaking cracks, and can completely remove small surface-breaking cracks. [source] Experimental Tests of Normative Group Influence and Representation Effects in Computer-Mediated CommunicationHUMAN COMMUNICATION RESEARCH, Issue 3 2002When Interacting Via Computers Differs From Interacting With Computers Two experiments addressed the questions of if and how normative social influence operates in anonymous computer-mediated communication (CMC) and human-computer interaction (HCI). In Experiment 1, a 2 (public response vs. private response) × 2 (one interactant vs. four interactants) × 3 (textbox vs. stick figure vs. animated character) mixed-design experiment (N = 72), we investigated how conformity pressure operates in a simulated CMC setting. Each participant was asked to make a decision in hypothetical social dilemmas after being presented with a unanimous opinion by other (ostensible) participants. The experiment examined how the visual representation of interaction partners on the screen moderates this social influence process. Group conformity effects were shown to be more salient when the participant's responses were allegedly seen by others, compared to when the responses were given in private. In addition, participants attributed greater competence, social attractiveness, and trustworthiness to partners represented by anthropomorphic characters than those represented by textboxes or stick figures. Experiment 2 replicated Experiment 1, replacing interaction with a computer(s) rather than (ostensible) people, to create an interaction setting in which no normative pressure was expected to occur. The perception of interaction partner (human vs. computer) moderated the group conformity effect such that people expressed greater public agreement with human partners than with computers. No such difference was found for the private expression of opinion. As expected, the number of computer agents did not affect participants' opinions whether the responses were given in private or in public, while visual representation had a significant impact on both conformity measures and source perception variables. [source] Verbal and visual representations in task redesign: how different viewpoints enter into information systems design discussionsINFORMATION SYSTEMS JOURNAL, Issue 3 2005Jarmo Sarkkinen Abstract., We explore an important phase of information systems design (ISD), namely task redesign, and especially how different viewpoints enter into the discussions. We study how one particular visual representation, a process diagram, is interpreted and how alternative, even competing, representations are produced verbally. To tie the visual and verbal representations and the representational practices to wider social practices, we develop and use the Extended Three-dimensional Model of discourse. Visual representations emerged as focal in bringing in the different viewpoints and as reference points for discussions. Our model provided a focused and powerful means to unveil for the outside researchers how the planned changes in tasks and authority relationships instigated a social struggle. The IS designer was an outsider to the client organization and therefore considered only the information system, not the social system in which it was intended to operate. Other participants did not recognize this, therefore, seeing the designer as furthering managerial interests. Seeing task redesign in the social context of a client organization can help IS designers and researchers to understand what the users see naturally, that is, the ISD as a dynamic, enabling but socially constrained process where different viewpoints are represented. [source] An examination of exergy destruction in organic Rankine cyclesINTERNATIONAL JOURNAL OF ENERGY RESEARCH, Issue 10 2008P. J. Mago Abstract The exergy topological method is used to present a quantitative estimation of the exergy destroyed in an organic Rankine cycle (ORC) operating on R113. A detailed roadmap of exergy flow is presented using an exergy wheel, and this visual representation clearly depicts the exergy accounting associated with each thermodynamic process. The analysis indicates that the evaporator accounts for maximum exergy destroyed in the ORC and the process responsible for this is the heat transfer across a finite temperature difference. In addition, the results confirm the thermodynamic superiority of the regenerative ORC over the basic ORC since regenerative heating helps offset a significant amount of exergy destroyed in the evaporator, thereby resulting in a thermodynamically more efficient process. Parameters such as thermodynamic influence coefficient and degree of thermodynamic perfection are identified as useful design metrics to assist exergy-based design of devices. This paper also examines the impact of operating parameters such as evaporator pressure and inlet temperature of the hot gases entering the evaporator on ORC performance. It is shown that exergy destruction decreases with increasing evaporator pressure and decreasing turbine inlet temperatures. Finally, the analysis reveals the potential of the exergy topological methodology as a robust technique to identify the magnitude of irreversibilities associated with real thermodynamic processes in practical thermal systems. Copyright © 2008 John Wiley & Sons, Ltd. [source] Middletown High School: Equal Opportunity for Academic AchievementLEARNING DISABILITIES RESEARCH & PRACTICE, Issue 3 2006Cynthia Mata Aguilar Middletown High School is a comprehensive high school with 1,970 students, located in the environs of Washington, DC. It is distinguished by an open enrollment policy for all courses; a strong emphasis on inclusion of students with learning disabilities (LD) in general education classrooms; block scheduling that allows for more in-depth and meaningful study of important concepts and ideas; and team teaching in English, mathematics, science, and social studies. In a schoolwide 30-minute daily Learning Seminar, all students learn study skills, do homework, take tests, or go to the library, and teachers have opportunities for departmental meetings and problem solving. A visual representation of a "percolator" frames the school's system of opportunities and supports. Through case studies of two students with LD and analyses of 55 transcripts of recent graduates, we describe the academic and social opportunities, support structures, and strategies that make Middletown a "good high school" for students with disabilities. [source] Seeing the Past: Visual Media in ArchaeologyAMERICAN ANTHROPOLOGIST, Issue 2 2006RUTH M. VAN DYKE As digital media become increasingly affordable and accessible, visual representation in archaeology is expanding across several dimensions. In this essay, I examine some emerging forms of visual media in archaeology, including online documentaries, maps and photographs, hypermedia, experimental films, and peripatetic video. Visual media offer powerful opportunities for engagement with the public. In addition, archaeologists are finding new ways to use the visual in interpretation, analysis, and critique. Experimental visual works often are self-consciously reflexive, questioning and exposing the ways archaeological knowledge is constructed, represented, and disseminated. [source] Departmental websites and female student recruitmentPROCEEDINGS OF THE AMERICAN SOCIETY FOR INFORMATION SCIENCE & TECHNOLOGY (ELECTRONIC), Issue 1 2008Kristin Hanks Female recruitment and retention in technology related fields is still low, despite numerous attempts to reverse this trend. As a recruitment device, a school's webpage may be the only visual representation a student will see before deciding whether or not to apply. Thus, understanding the possible implications of this medium is important within the larger conversation on gender equity and opportunities. This research addresses several questions: At first glance, do websites give gender cues, whether intentional or not? Is there a relationship between certain web content and the number of women recruited into technology related schools and departments? Do applied fields (Informatics, Information Science, Instructional Technology, Information Systems) differ in their online recruitment practices from more traditional Computer Science and Engineering departments? It is important to note that this research is not an attempt to find the best web practices to recruit female students or an attempt to punish or blame specific institutions regarding their recruitment practices. [source] Dynameomics: Large-scale assessment of native protein flexibilityPROTEIN SCIENCE, Issue 12 2008Noah C. Benson Abstract Structure is only the first step in understanding the interactions and functions of proteins. In this paper, we explore the flexibility of proteins across a broad database of over 250 solvated protein molecular dynamics simulations in water for an aggregate simulation time of ,6 ,s. These simulations are from our Dynameomics project, and these proteins represent approximately 75% of all known protein structures. We employ principal component analysis of the atomic coordinates over time to determine the primary axis and magnitude of the flexibility of each atom in a simulation. This technique gives us both a database of flexibility for many protein fold families and a compact visual representation of a particular protein's native-state conformational space, neither of which are available using experimental methods alone. These tools allow us to better understand the nature of protein motion and to describe its relationship to other structural and dynamical characteristics. In addition to reporting general properties of protein flexibility and detailing many dynamic motifs, we characterize the relationship between protein native-state flexibility and early events in thermal unfolding and show that flexibility predicts how a protein will begin to unfold. We provide evidence that fold families have conserved flexibility patterns, and family members who deviate from the conserved patterns have very low sequence identity. Finally, we examine novel aspects of highly inflexible loops that are as important to structural integrity as conventional secondary structure. These loops, which are difficult if not impossible to locate without dynamic data, may constitute new structural motifs. [source] Managing innovation in a knowledge intensive technology organisation (KITO)R & D MANAGEMENT, Issue 5 2002Audrey Verhaeghe This study aims to add to the existing knowledge of how innovation works in organisations. By understanding how to assess/evaluate processes that support and enable innovation, managers can better manage innovation as a business process. This paper addresses elements of organisational behaviour that relate to people management where innovation and technology management is concerned. Perception plays a crucial role in driving behaviour and therefore the widely accepted business scorecard methodology has been used to measure innovation practices in the organisation. The research was done in a knowledge intensive technology organisation (KITO) in South Africa. Interviews with managers of R&D were conducted. These interviews were used to adapt an existing audit instrument to suit the technology,based organisation. Thereafter, a comprehensive audit of innovation was conducted at three different management levels using the adapted instrument. Over 100, mostly R&D managers, were asked to complete a scorecard,based questionnaire and to draw a visual representation (VR) of innovation. The results of the interviews, audit and VRs were used to produce a management framework that is not only applicable to a KITO, but can also be used widely to improve innovation through enhanced visual understanding of any technology,based organisation. The results of the study indicate that measuring innovation through a validated instrument is highly valuable. The Holistic System Framework for innovation and the measurement instrument facilitated (1) management of, and (2) organisational learning about innovation. The comprehensive audit indicated, on a strategic level, the strengths and weaknesses of the innovation process as practised in the organisation. The instrument is valuable at a strategic management level as it indicates where in the organisation the gaps exist regarding the management of the process of innovation with the aim to create a competitive advantage. [source] Using Dominance-Diversity Curves to Assess Completion Criteria After Bauxite Mining Rehabilitation in Western AustraliaRESTORATION ECOLOGY, Issue 1 2003C. D. Grant Abstract Dominance-diversity curves have been previously constructed for a range of ecosystems around the world to illustrate the dominance of particular species and show how their relative abundances compare between communities separated in time or space. We investigate the usefulness of dominance-diversity curves in rehabilitated areas to compare the floristic composition and abundance of "undisturbed" areas with disturbed areas, using bauxite mining rehabilitation in Western Australia as an example. Rehabilitated pits (11,13 years old) subjected to prescribed fire in autumn and spring were compared with unburned rehabilitated areas and the native jarrah (Eucalyptus marginata) forest. Dominance diversity curves were constructed by ranking the log of the species density values from highest to lowest. Species were categorized according to a variety of functional responses: life form (trees, shrubs, subshrubs, and annuals), fire response syndrome (seeder or resprouter), nitrogen fixing capability, and origin (native or adventive). Exponential functions showed extremely good fits for all sites (r2 = 0.939,0.995). Dominance diversity graphs showed that after burning of rehabilitated areas, sites exhibited a more similar dominance-diversity curve than before burning. This was emphasized in a classification (UPGMA) of the regression equations from the dominance-diversity curves that showed that sites burned in spring were more similar to the native forest than sites burned in autumn. There was no significant segregation of the nitrogen-fixing and species origin categories, although the life form and fire response groupings showed significant segregation along the dominance-diversity curve. Resprouters tended to be over-represented in the lower quartiles and under-represented in the upper quartiles of post-burn sites. It is suggested that using dominance-diversity curves in the monitoring of rehabilitated areas may be a useful approach because it provides an easily interpretable visual representation of both species richness and abundance relationships and may be further utilized to emphasize categories of plants that are over- or under-represented in rehabilitated areas. This will assist in the post-rehabilitation management of these sites. [source] The birth of design: a Kuna theory of body and personhoodTHE JOURNAL OF THE ROYAL ANTHROPOLOGICAL INSTITUTE, Issue 3 2010Paolo Fortis This article explores the concept of ,design' (narmakkalet) held by the Kuna people of Panamá. It demonstrates that the native concept of design and its relation to the human body is central to Kuna ideas concerning personhood. The main argument is that design is an attribute of the body which enables the creation of persons through the transformation of their relationship with animal entities. Through analysing the particular case of ,amniotic designs' (kurkin narmakkalet), which are sometimes visible on the heads of neonates, the article shows that designs provide a visual representation of the relationship between human beings and animals, and as such are integral in the formation of persons among the Kuna. To comprehend Kuna aesthetics, it is suggested, we need to look at the way Amerindians conceive the person, at how bodies are created, and at the relationships that human beings and animals entertain. Résumé L'auteur explore ici le concept de « dessin » (narmakkalet) chez les Kuna du Panamá. Il montre que le concept indigène de dessin et sa relation avec le corps humain sont essentiels dans les idées des Kuna concernant la personnalité. Le principal argument est que le dessin est un attribut du corps permettant la création de personnes par la transformation de leur relation avec des entités animales. En analysant le cas particulier des « dessins amniotiques » (kurkin narmakkalet) parfois visibles sur la tête des nouveau-nés, l'auteur montre que les dessins donnent une représentation visuelle de la relation entre humains et animaux font partie intégrante, en tant que tels, de la constitution des personnes chez les Kuna. Pour comprendre l'esthétique des Kuna, l'auteur suggère d'examiner la manière dont les Amérindiens conçoivent la personne, la manière dont les corps sont créés et la relation que les êtres humains entretiennent avec les animaux. [source] Inbreeding Coefficients for X-linked and Autosomal Genes in Consanguineous Marriages in Spanish Populations: The Case of Guipúzcoa (Basque Country)ANNALS OF HUMAN GENETICS, Issue 2 2009R. Calderón Summary Inbreeding patterns over the past two centuries have been studied more extensively in Spain and Italy than anywhere else in Europe. Consanguinity studies in mainland Spain have shown that populations settled along the Cantabrian cornice share inbreeding patterns that distinguish them from other populations further south. A visual representation of spatial variations of two key inbreeding variables is presented here for the first time via contour maps. This paper also analyzes time trends of mean inbreeding coefficients for X-linked (Fx) and autosomal genes (F) (1862,1995) together with variations in Fx/F ratios in Guipúzcoa, the most autochthonous Spanish Basque province. Because close cousin marriages are a mark of identity of the study population, we evaluated the contribution of uncle-niece/aunt-nephew (M12) and first cousin (M22) marriages to Fx and F values and compared the frequencies of M12 and M22 pedigree subtypes and their corresponding Fx/F ratios to those found in other Spanish populations. The mean Fx and F inbreeding levels in Guipúzcoa for the 134-year period analyzed were 1.51 × 10,3 and 1.04 × 10,3, respectively, and the Fx/F ratio was seen to be very stable over time. Our findings show that major similarities exist for close consanguineous marriage subtypes between Basque and non-Basque Spanish populations, despite significant geographic variability in terms of first cousin pedigrees. The distortion seems to be caused by Guipúzcoa. The Fx/F ratios for first cousins in Spanish populations were higher than expected (1.25), with values ranging from 1.34 to 1.48. The findings of the present study may be useful for advancing knowledge on the effects of the interaction between biology and culture and for exploring associations between mating patterns and the prevalence of certain diseases. [source] Change in leptin, body composition and other hormones around menarche , a visual representationACTA PAEDIATRICA, Issue 10 2008LG Bandini Abstract Aim: To present a visual representation of changes in body composition, leptin, insulin, estradiol and follicular stimulating hormone (FSH) levels in relation to menarche in girls. Methods: Participants were a subset of healthy girls (n = 108) enrolled in a longitudinal study of growth and development conducted at the General Clinical Research Center at the Massachusetts Institute of Technology (MIT). Participants were seen annually from before menarche until 4 years postmenarche for measures of body composition and serum levels of leptin, insulin, estradiol and FSH. Body composition was determined by bioelectrical impedance. Standardized body composition and hormone levels were smoothed and plotted relative to menarche to visualize patterns of change. Results: At menarche, the mean percentage body fat (%BF) of girls was 24.6% (SD = 4.1%) after menarche %BF was ,27%. Leptin levels averaged 8.4 ng/mL (SD = 4.6) at menarche and were ,12 ng/mL after menarche. Changes in leptin levels closely paralleled changes in %BF. Insulin, estradiol and FSH levels followed expected patterns relative to menarche. Leptin began rising closer to menarche than did insulin or the other sex hormones. Conclusion: We provide a visual presentation of hormonal and body composition changes occurring throughout the pubertal period in girls which may be useful in generating new hypotheses related to the timing of menarche. [source] Selective activation of the ventrolateral prefrontal cortex in the human brain during active retrieval processingEUROPEAN JOURNAL OF NEUROSCIENCE, Issue 7 2001Geneviève Cadoret Abstract The present study examined the role of the prefrontal cortex in retrieval processing using functional magnetic resonance imaging in human subjects. Ten healthy subjects were scanned while they performed a task that required retrieval of specific aspects of visual information. In order to examine brain activity specifically associated with retrieval, we designed a task that had retrieval and control conditions that were perfectly matched in terms of depth of encoding, decision making and postretrieval monitoring and differed only in terms of whether retrieval was required. In the retrieval condition, based on an instructional cue, the subjects had to retrieve either the particular stimulus that was previously presented or its location. In the control condition, the cue did not instruct retrieval but shared with the instructional cues the function of alerting the subjects of the impending test phase. The comparison of activity between the retrieval and control conditions demonstrated a significant and selective increase in activity related to retrieval processes within the ventrolateral prefrontal cortical region, more specifically within area 47/12. These activity increases were bilateral but stronger in the right hemisphere. The present study by strictly controlling the level of encoding, postretrieval monitoring, and decision making has demonstrated a specific increase in the ventrolateral prefrontal region that could be clearly related to active retrieval processing, i.e. the active selection of particular stored visual representations. [source] Voyages, Encounters, and Agency in Oceania: Captain Cook and Indigenous PeopleHISTORY COMPASS (ELECTRONIC), Issue 3 2008Bronwen Douglas Beginning with a brief historiographic survey of the prolific literature on European voyages of exploration in Oceania, in particular those of James Cook, this article considers how embodied encounters helped shape the written and visual representations of indigenous Oceanian people by Cook and his naturalists and artists in New Holland (Australia), the New Hebrides (Vanuatu) and Van Diemen's Land (Tasmania). I treat encounters as situated and permeable: not as a generalised clash of incommensurate cultures but as ambiguous intersections of multiple personal agencies, both indigenous and foreign. This approach suggests an indirect liaison between particular local actors and the expanding stock of empirical information provided by travellers and drawn on by metropolitan natural historians to illustrate their deductions about mankind. I suggest that voyagers' representations of Oceanian people should be read not merely as reflections of received knowledge derived from dominant metropolitan discourses or literary and artistic conventions but also as personal productions generated in the flux, stress, high emotion and uncertainty of meetings with actual people in the vulnerable settings of voyages under sail. Such representations were often significantly, if obliquely affected by local agency. [source] Verbal and visual representations in task redesign: how different viewpoints enter into information systems design discussionsINFORMATION SYSTEMS JOURNAL, Issue 3 2005Jarmo Sarkkinen Abstract., We explore an important phase of information systems design (ISD), namely task redesign, and especially how different viewpoints enter into the discussions. We study how one particular visual representation, a process diagram, is interpreted and how alternative, even competing, representations are produced verbally. To tie the visual and verbal representations and the representational practices to wider social practices, we develop and use the Extended Three-dimensional Model of discourse. Visual representations emerged as focal in bringing in the different viewpoints and as reference points for discussions. Our model provided a focused and powerful means to unveil for the outside researchers how the planned changes in tasks and authority relationships instigated a social struggle. The IS designer was an outsider to the client organization and therefore considered only the information system, not the social system in which it was intended to operate. Other participants did not recognize this, therefore, seeing the designer as furthering managerial interests. Seeing task redesign in the social context of a client organization can help IS designers and researchers to understand what the users see naturally, that is, the ISD as a dynamic, enabling but socially constrained process where different viewpoints are represented. [source] Schematic representation of case study research designsJOURNAL OF ADVANCED NURSING, Issue 4 2007John P. Rosenberg Abstract Title.,Schematic representation of case study research designs Aim., The paper is a report of a study to demonstrate how the use of schematics can provide procedural clarity and promote rigour in the conduct of case study research. Background., Case study research is a methodologically flexible approach to research design that focuses on a particular case , whether an individual, a collective or a phenomenon of interest. It is known as the ,study of the particular' for its thorough investigation of particular, real-life situations and is gaining increased attention in nursing and social research. However, the methodological flexibility it offers can leave the novice researcher uncertain of suitable procedural steps required to ensure methodological rigour. Method., This article provides a real example of a case study research design that utilizes schematic representation drawn from a doctoral study of the integration of health promotion principles and practices into a palliative care organization. Discussion., The issues discussed are: (1) the definition and application of case study research design; (2) the application of schematics in research; (3) the procedural steps and their contribution to the maintenance of rigour; and (4) the benefits and risks of schematics in case study research. Conclusion., The inclusion of visual representations of design with accompanying explanatory text is recommended in reporting case study research methods. [source] Reasons for sequence preferencesJOURNAL OF BEHAVIORAL DECISION MAKING, Issue 5 2002Daniel Read Abstract Much research shows that when it comes to preferences over sequences of money, such as a monthly paycheck, people do not always maximize present value. Rather, they often choose the lower-valued of a pair of sequences, especially when it has attractive properties such as an increasing trend. To unearth the reasons for sequence preferences we conducted a verbal-protocol analysis of choices between money sequences, including lifetime and one-year earnings and one-year lottery winnings, as well as lifetime health sequences. Participants thought aloud while choosing between visual representations of sequences. Their verbalizations contained reference to a wide range of previously hypothesized, as well as new, reasons for choice. These reasons were also correlated in sensible ways with the choices made. There was some evidence of solid economic reasoning (which we called maximization), although this was largely restricted to choices for one-year earnings. More commonly, respondents did not distinguish between earnings and consumption, and thought about money as if they would automatically spend it at the rate it was received. This meant the most frequently given reason was what we called appropriateness,how well the money received at a given point matched the desired consumption at that point. Other common explanations include the expectedness of a sequence (we argue this is mediated by appropriateness), the way that parts of the sequence constitute reference points for other parts, and the ease with which incoming money can be managed (convenience). Copyright © 2002 John Wiley & Sons, Ltd. [source] Knowledge translation: An opportunity to reduce global health inequalitiesJOURNAL OF INTERNATIONAL DEVELOPMENT, Issue 8 2009Vivian Welch Abstract Knowledge translation represents an opportunity to redress global health inequalities. This paper first assesses models for how health inequalities are produced and sustained, including effects of catastrophic illness and globalisation. Secondly, this paper illustrates how methods for knowledge translation can be applied to reducing inequalities in health by ensuring the best evidence is applied when appropriate. Thirdly, the paper describes available databases and tools for monitoring effects of knowledge translation on global health inequalities. In particular, mapping methods for creating visual representations of changes in global health inequalities are useful for setting priorities for action and research. Copyright © 2009 John Wiley & Sons, Ltd. [source] Visual Images of America in the Sixteenth CenturyLITERATURE COMPASS (ELECTRONIC), Issue 6 2008Elaine Brennan Artists rarely accompanied sixteenth-century voyages of discovery and exploration.1 As a consequence, few first-hand visual representations of the New World were produced. Despite this, published accounts of the Americas in the sixteenth century often included illustrations. With some notable exceptions, the voyagers themselves did not supply the images, or directly supervise their publication. Accurate or not, these images, together with the texts they illustrated, contributed to the construction of the Americas in European consciousness. Only a small number of original first-hand pictorial works survive today, the most important being John White's drawings of the Algonquian Indians of Roanoke, Virginia, from 1585,86. The recent major exhibition of John White's drawings may provoke new scholarly interest in sixteenth-century visual images of the Americas, a topic which offers a rich and relatively neglected area of study.2 This article offers an introduction to the field together with some suggestions for avenues of further research.3 [source] Histories in red: Ways of seeing lynching in EcuadorAMERICAN ETHNOLOGIST, Issue 1 2009CHRISTOPHER KRUPA ABSTRACT In this article, I examine the ways that ongoing "spectacle" lynchings in highland Ecuador have come to generate public opposition to the country's indigenous movement and the political transformations it advocates. Focusing my analysis on the recent lynching of an Afro-Ecuadorian migrant in a small Andean town, I argue for an approach to public violence that directs attention back to the body of the victim and the significations attached to it. I draw influence from studies of U.S. lynchings to ask about the relationship between visual representations of violence and constructions of political illegitimacy in rapidly transforming social formations. [violence, lynching, media, visuality, indigenous peoples, Ecuador, Latin America] [source] The Religious Iconography of Israel and Judah ca.RELIGION COMPASS (ELECTRONIC), Issue 2 2008587 bce In spite of the prohibition on images, the religions of ancient Israel and Judah were not without visual representations. The development of the religions of these regions in the period ca. 1200,587 bce (all dates are bce = before the common/Christian era) is discussed by using iconography or visual sources. A selection of materials and their meaning from the Iron Age I (ca. 1200/1150,1000), IIA (ca. 1000,900), IIB (900,700) and IIC (700,587) is presented.1 The million-dollar question that remains is whether the chief Israelite deity may be identified in the iconographical record. [source] Disciplining Subjectivity and Space: Representation, Film and its Material EffectsANTIPODE, Issue 2 2004Jennifer England Although the distinction between representation and reality is increasingly blurred, I argue that representational discourses have material effects in everyday life. By moving "outside the text" I trace the messy terrain between visual discourse and everyday life in Downtown Eastside, Vancouver by examining two questions: (1) how do discursive productions of visual culture articulate, inscribe, and discipline space and subjectivity and (2) how do aboriginal women negotiate the material consequences of those representations? Using discourse and feminist analysis, I analyse how a documentary film, produced by the Vancouver Police Department, constructs spaces and subjectivities of deviance through techniques of realism and the moral gaze of the police officers. I argue that aboriginal women negotiate these deviant representations through their experiences of racism and sexism by police officers. Consequently, aboriginal women are rendered either hyper-visible or invisible by police officers, marked by their gender, race, and class. Combining an analysis of the documentary film and in-depth interviews with aboriginal women, I argue that critical geographers must consider the analytical spaces "outside of the text" to explore the material effects of visual representations. [source] Flashbulb and factual memories: the case of Rabin's assassinationAPPLIED COGNITIVE PSYCHOLOGY, Issue 5 2003Israel Nachson Similarities and differences between factual memories (FTM) and flashbulb memories (FBM) of the assassination of Israel's Prime Minister, Itzhak Rabin, were explored. About two weeks after the assassination 61 Israeli students filled out a questionnaire which focused on the event and the circumstances in which they had first learned about it. About 11 months later they filled out again the same questionnaire, and self-assessed their emotional and cognitive reactions to the assassination, as well as specific properties of their memory; such as confidence in its accuracy, and the amounts of rehearsals and visual representations. Comparative analysis of the participants' responses on the two questionnaires uncovered decrements of about 25% in FTM accuracy, and about 36% in FBM consistency. Rehearsals and visual representations were more common in FTM than in FBM, but the levels of confidence in memory accuracy were similar for both. FTM which were presumably based on information provided by television broadcasts, appeared to have episodic properties. The data seem to support the hypothesis that FTM and FBM of traumatic public events are encoded together; perhaps by the same memory mechanism. Copyright © 2003 John Wiley & Sons, Ltd. [source] Jesuit Science After Galileo: The Cosmology of Gabriele BeatiCENTAURUS, Issue 3 2009Kerry V. Magruder Abstract Gabriele Beati (1607,1673) taught mathematics at the Collegio Romano when in 1662 he published an introduction to astronomy, the Sphaera triplex. This little work contains an interesting cosmic section which is analyzed here as representing a fusion of Jesuit traditions in cosmology achieved by Giovanni Battista Riccioli (1598,1671). The cosmic section enumerates three heavens, depicts fluid planetary heavens, and expresses hexameral biblical idiom. Woodcut and engraved variants of the cosmic section offer a glimpse of Jesuit freedom to experiment with various cosmological systems (Capellan, Tychonic and semi-Tychonic). Analysis of this cosmic section suggests several conclusions for the interpretation of visual representations, science and biblical interpretation, the Scientific Revolution and Jesuit science after Galileo. [source] Global Visions and the Establishment of Theories of the EarthCENTAURUS, Issue 4 2006Kerry V. Magruder This essay examines how the emergence of visual representations contributed to the establishment of a new print tradition of multicontextual discourse and critical debate. Four vignettes contrast varying uses of global depictions: the incidental global depictions and mathematical vision of Johannes Kepler; the cosmogonic sections and chemical vision of Robert Fludd; the geogonic sections and mechanical vision of René Descartes; and the global views and classical vision of Thomas Burnet. The continuities of visual conventions and the contrasts of disciplinary perspectives and local contexts observed in these vignettes conforms well to the characterization of Theories of the Earth as an interdisciplinary print tradition. [source] | ||||||||||||||||||||||||||||