Current Perceptions (current + perception)

Distribution by Scientific Domains

Terms modified by Current Perceptions

  • current perception threshold

  • Selected Abstracts


    A meta-analysis of biotic resistance to exotic plant invasions

    ECOLOGY LETTERS, Issue 10 2004
    Jonathan M. Levine
    Abstract Biotic resistance describes the ability of resident species in a community to reduce the success of exotic invasions. Although resistance is a well-accepted phenomenon, less clear are the processes that contribute most to it, and whether those processes are strong enough to completely repel invaders. Current perceptions of strong, competition-driven biotic resistance stem from classic ecological theory, Elton's formulation of ecological resistance, and the general acceptance of the enemies-release hypothesis. We conducted a meta-analysis of the plant invasions literature to quantify the contribution of resident competitors, diversity, herbivores and soil fungal communities to biotic resistance. Results indicated large negative effects of all factors except fungal communities on invader establishment and performance. Contrary to predictions derived from the natural enemies hypothesis, resident herbivores reduced invasion success as effectively as resident competitors. Although biotic resistance significantly reduced the establishment of individual invaders, we found little evidence that species interactions completely repelled invasions. We conclude that ecological interactions rarely enable communities to resist invasion, but instead constrain the abundance of invasive species once they have successfully established. [source]


    Practicing Change: Curriculum Adaptation and Teacher Narrative in the Context of Mathematics Education Reform

    CURRICULUM INQUIRY, Issue 2 2006
    COREY DRAKE
    ABSTRACT The use of reform-based curricula is one possible avenue for the widespread implementation of mathematics education reform. In this article, we present two urban elementary teachers' models of curriculum use that describe how each teacher used a reform-oriented mathematics curriculum. In particular, we examine when and how the teachers made adaptations to the curriculum. We find that each teacher had a distinctive pattern of adaptation when using the curriculum. Furthermore, these patterns were related to three key aspects of the teachers' own experiences with mathematics: their early memories of learning mathematics, their current perceptions of themselves as mathematics learners, and their mathematical interactions with family members. Implications for curriculum design and implementation are discussed. [source]


    Learners' Descriptions of German Pronunciation, Vocabulary, and Grammar: A Folk Linguistic Account

    DIE UNTERRICHTSPRAXIS/TEACHING GERMAN, Issue 1 2009
    Monika Chavez
    Following a folk linguistic approach, this investigation of first-, second- and fourth-year learners' accounts of German found that (1) few had held pre-conceived notions about German prior to language study; (2) most pre-conceived notions concerned German pronunciation; (3) pre-conceived notions about vocabulary were most likely to influence the decision to study German; and (4) among current perceptions of German, learners (a) believe German to be more "systematic" than English; (b) are virtually exclusively concerned with rules of "accuracy" (not appropriateness); (c) tend to judge the "merits" of German rules in comparison with English but also the Romance languages; (d) consider grammar more different between English and German than vocabulary and pronunciation; and (e) register no observable differences across different years of study or between German and non-German majors. [source]


    Mainstreaming Risk Reduction in Urban Planning and Housing: A Challenge for International Aid Organisations

    DISASTERS, Issue 2 2006
    Christine Wamsler
    Abstract The effects of ,natural' disasters in cities can be worse than in other environments, with poor and marginalised urban communities in the developing world being most at risk. To avoid post-disaster destruction and the forced eviction of these communities, proactive and preventive urban planning, including housing, is required. This paper examines current perceptions and practices within international aid organisations regarding the existing and potential roles of urban planning as a tool for reducing disaster risk. It reveals that urban planning confronts many of the generic challenges to mainstreaming risk reduction in development planning. However, it faces additional barriers. The main reasons for the identified lack of integration of urban planning and risk reduction are, first, the marginal position of both fields within international aid organisations, and second, an incompatibility between the respective professional disciplines. To achieve better integration, a conceptual shift from conventional to non-traditional urban planning is proposed. This paper suggests related operative measures and initiatives to achieve this change. [source]


    Terbinafine, a unique oral antifungal: current perceptions

    INTERNATIONAL JOURNAL OF DERMATOLOGY, Issue 6 2000
    Sanjeev Jain
    First page of article [source]


    Recognising our role: improved confidence of general nurses providing care to young people with a mental illness in a rural paediatric unit

    JOURNAL OF CLINICAL NURSING, Issue 9-10 2010
    Lorna Moxham
    Objective., To implement and evaluate strategies suggested by general nurses to improve management of children and adolescents with mental health problems admitted to a paediatric unit of a general hospital. Background., The first phase of a study using a Participatory Action Research approach identified several concerns associated with general nurses providing care to young people with mental disorders in paediatric units of general hospitals, together with suggestions for strategies to address these issues. This paper describes the second and third phase of the Participatory Action Research study, involving the implementation and evaluation of these strategies. Design., Participatory Action Research. Methods., Actions that occurred during phase two of the Participatory Action Research study included revision and introduction of policies and procedures for mental health care in the unit, education and training sessions for paediatric nursing staff and opportunities to strengthen communication between existing mental health services. In phase three, two focus groups were conducted to explore current perceptions of mental health care delivery in the unit and evaluate change, following phase two. Results., Changes in clinical practice for paediatric mental health care were acknowledged by participants. Reflection has assisted nurses to better understand their strengths and weaknesses and to acknowledge and challenge the assumptions on which their ideas, feelings and actions about patients with mental health issues are based. Participants also recognised the existing skills and expertise they possess that are relevant to the management of young people with a mental health problem, although they continue to seek ongoing education and support in this field. Conclusions., This study demonstrates that through Participatory Action Research it is possible to enhance mental health nursing care in a rural paediatric unit. Relevance to clinical practice., Such changes have the potential to improve the experience of young people and their families whilst receiving treatment for mental health conditions in a general paediatric unit. [source]


    Retrospective reports of college students' childhood problems

    JOURNAL OF CLINICAL PSYCHOLOGY, Issue 3 2005
    Kimberly Renk
    College students and a subsample of their mothers and fathers participated in a study examining their retrospective reports of childhood emotional and behavioral problems experienced by college students. College students and their mothers and fathers exhibited moderate correspondence in their recollection of internalizing and externalizing problems that college students experienced during their childhood. In contrast, college students tended to endorse significantly greater levels of both internalizing and externalizing problems relative to their mothers and fathers. Current psychological symptoms predicted the greater endorsement of childhood internalizing and externalizing problems by college students and the greater endorsement of college students' childhood internalizing problems by their mothers. Further, college students' current perceptions of their parents predicted their endorsement of childhood internalizing problems, and college students' current masculinity and femininity predicted their endorsement of childhood externalizing problems. Results of this study emphasized the importance of noting factors that may be related to retrospective reports. © 2004 Wiley Periodicals, Inc. J Clin Psychol. [source]


    Role modelling: how does it influence teaching in Family Medicine?

    MEDICAL EDUCATION, Issue 6 2000
    Christopher Matthews
    Objective To undertake a qualitative study to explore the influence of role modelling on teaching by comparing faculty members recollections of their teachers' behaviours with residents perceptions of the same behaviours in a family medicine residency programme in Saudi Arabia. Method Using semi-structured interviews of faculty and a questionnaire based on the issues arising from the interviews, faculty members' recollections of their medical teachers' behaviours were compared with residents' current perceptions of the same teaching behaviours. Setting Department of Family Medicine, King Fahad National Guard Hospital, Riyadh, Saudi Arabia. Subjects Faculty and residents. Results The four best-remembered teacher behaviours were: positive behaviour towards patients, negative behaviour towards junior colleagues, effective presentation of subject content and encouragement to participate in patient care. The residents perceived positive behaviour towards patients, positive behaviour towards junior colleagues, suboptimal skills of subject content presentation, and insufficient encouragement for trainees to actively participate in patient management. Although faculty retained many unhappy memories of teacher behaviour, it was encouraging that there was no evidence of perpetuation of the negatively perceived behaviours which provoked them. Conclusions Discernment of the value of technical teaching skills was not a predictor of later proficiency. [source]


    Producing Spaces for Academic Discourse: The Impact of Research Assessment Exercises and Journal Quality Rankings

    AUSTRALIAN ACCOUNTING REVIEW, Issue 1 2010
    Deryl Northcott
    This study examines the impact of national research assessment exercises (NRAEs) and associated journal quality rankings on the development, scope and sustainability of the academic journals in which accounting research is disseminated. The reported exploratory study focused on the United Kingdom (UK), Australia and New Zealand as three countries in which NRAEs are well developed or imminent. Data were collected via a survey of authors, interviews with journal editors, and feedback from publishers responsible for producing academic accounting journals. The findings suggest that, despite cynicism around the reliability of published journal quality rankings, the entrenchment of NRAE ,rules' and journal quality perceptions has changed authors' submission choices and left lower ranked journals struggling with a diminished quantity and quality of submissions. A clear perception is that NRAEs have done little to improve the overall quality of the accounting literature, but are impeding the diversity, originality and practical relevance of accounting research. Although strategies are suggested for meeting these challenges, they require strategic partnerships with publishers to enhance the profile and distribution of emerging journals, and depend on the willingness of accounting researchers to form supportive communities around journals that facilitate their research interests. The alternative may be a withering of the spaces for academic discourse, a stifling of innovation and a further entrenchment of current perceptions of what counts as ,quality' research. [source]


    Islamic Radicalisation among North Africans in Britain

    BRITISH JOURNAL OF POLITICS & INTERNATIONAL RELATIONS, Issue 4 2008
    Jonathan Githens-Mazer
    This article examines how symbols of Islamic repression and massacre affect radicalisation among North Africans living in the UK. It suggests that these symbols are an insufficient but necessary cause in the larger process of ,radicalisation', because they provide a basis for perceptions of injustice. In this context, myths, memories and symbols of colonial repression, contemporary repression of free political expression in North African states and current perceptions of western ,oppression' of Islam may be perceived as rationales for ,oxygenation'. Oxygenation here denotes exchanges among different Muslim communities throughout Britain which potentially facilitate terrorist networks. Oxygenation in turn contributes to ,blowback', here in the guise of perceptions among British Muslims of global oppression of the Umma, especially understood in light of the Iraqi and Afghani insurgencies. This article also explores how these symbols may be cultivated and disseminated at popular and elite levels. [source]