Early Research (early + research)

Distribution by Scientific Domains


Selected Abstracts


An exploration of research into substance misuse and psychiatric disorder in the UK: what can we learn from history?

CRIMINAL BEHAVIOUR AND MENTAL HEALTH, Issue 4 2007
Ilana B. Crome
Background and aim,This review explores UK-based research developments in substance misuse and mental illness over the last 25 years. The main body of work comprises policy-orientated projects funded by the Department of Health from the late 1990s. Early research tended to focus on alcohol, especially alcoholic hallucinosis: the relationship of the latter with schizophrenia-like illness was examined, with the finding that very few cases did develop into schizophrenia. Method and implications,Parallels are drawn with the current debate around the link between cannabis and psychosis, urging caution in too rapid an assertion that cannabis is necessarily ,causal'. The clinical and policy implications of the misinterpretation of evidence are discussed. A proposal is put forward that the genesis of psychotic illness in alcohol misuse be revisited using more sophisticated research methodologies. Given the changing landscape of substance use in the UK, particularly the fashion of polysubstance use and the recognition that this is associated with psychotic illness, other drugs that are associated with psychotic illness should be similarly investigated to determine whether there is a common mechanism that might throw light on understanding the relationship between substance use and psychotic illness or schizophrenia. Copyright © 2007 John Wiley & Sons, Ltd. [source]


MENTORS AND CRIMINAL ACHIEVEMENT,

CRIMINOLOGY, Issue 1 2006
CARLO MORSELLI
Much of the research focusing on conventional occupations concludes that mentored individuals are more successful in their careers than those who are not mentored. Early research in criminology made a similar claim. Yet contemporary criminology has all but ignored mentors. We investigate this oversight, drawing on Sutherland's insights on tutelage and criminal maturation and incorporating ideas on human and social capital. We argue that mentors play a key role in their protégés' criminal achievements and examine this hypothesis with data from a recent survey of incarcerated adult male offenders in the Canadian province of Quebec. In this sample, a substantial proportion of respondents reported the presence of an influential individual in their lives who introduced them to a criminal milieu and whom they explicitly regarded as a mentor. After studying the attributes of offenders and their mentors, we develop a causal framework that positions criminal mentor presence within a pathway that leads to greater benefits and lower costs from crime. [source]


Local host ant specificity of Phengaris (Maculinea) teleius butterfly, an obligatory social parasite of Myrmica ants

ECOLOGICAL ENTOMOLOGY, Issue 5 2010
MAGDALENA WITEK
1. Phengaris butterflies are obligatory social parasites of Myrmica ants. Early research suggested that there is a different Myrmica host species for each of the five European Phengaris social parasites, but more recent studies have shown that this was an oversimplification. 2. The pattern of host ant specificity within a Phengaris teleius metapopulation from southern Poland is reported. A combination of studying the frequency distribution of Phengaris occurrence and morphometrics on adult butterflies were used to test whether use of different host species is reflected in larval development. 3. Phengaris teleius larvae were found to survive in colonies of four Myrmica species: M. scabrinodis, M. rubra, M. ruginodis, and M. rugulosa. Myrmica scabrinodis was the most abundant species under the host plant but the percentage of infested nests was similar to other host ant species at two sites and lower in comparison to nests of M. rubra and M. ruginodis at the other two sites. Morphometric measurements of adult butterflies reared by wild colonies of M. scabrinodis and M. ruginodis showed that wing size and number of wing spots were slightly greater for adults eclosing from nests of M. ruginodis. 4. Our results suggest that P. teleius in the populations studied is less specialised than previously suggested. The results are consistent with the hypothesis that P. teleius is expected to be the least specific of the European Phengaris species, as it has the largest and best defended fourth-instar caterpillars and, as a predatory species, it spends less time in the central larval chambers of the host colonies. The fact that individuals reared by M. ruginodis had wider hind wings may suggest that P. teleius had better access to resources in M. ruginodis than in M. scabrinodis colonies. [source]


Political and social drivers for access to the countryside: the need for research on birds and recreational disturbance

IBIS, Issue 2007
GRAHAM BATHE
The introduction of a statutory right of access to open country and registered common land in England and Wales in 2005 was a major milestone in a campaign traceable to the 19th century, with views strongly polarized between social classes and political parties, and between land owners and campaigners. More recently, access has also been recognized as a factor contributing to quality-of-life, public health, social diversity and rural economic issues. The mapping of access land revealed that 55% of it is also designated Site of Special Scientific Interest, where wildlife is legally conserved. This has generated a need to assess the implications of access in each case, and take measures to ensure nationally and internationally important features are protected, drawing on sound scientific principles. Early research, although competently undertaken, often failed to address population-scale effects significant at the designated-site level, enabling disputes and polarized ,beliefs' to be articulated. Hence, in addition to drawing up formal and transparent procedures for evaluating impacts and resolving difficulties, funds were released and a major programme initiated, commissioning applied research of direct relevance to the implementation of the legislation. This has pushed forward the boundaries of knowledge in a field which is both difficult and expensive to study. By gradually replacing ,belief' with evidence, this represents a case study in resolving environmental disputes. [source]


The nature of middle school learners' science content understandings with the use of on-line resources

JOURNAL OF RESEARCH IN SCIENCE TEACHING, Issue 3 2003
Joseph L. Hoffman
Early research on using the World Wide Web indicated that middle school students did not explore much and used Web tools naively. In response to these challenges, an on-line research engine, Artemis, was designed to provide a permanent workspace and allow students access to preselective on-line resources. This study investigated the depth and accuracy of sixth-grade students' content understandings as well as their use of search and assess strategies when they used on-line resources via Artemis. Eight student pairs from two science classes experienced support from teachers and used scaffolded curriculum materials while completing four on-line inquiry units during 9 months. Multiple sources of data were collected, including video recordings of students' computer activities and conversations, students' artifacts and on-line postings, classroom and lab video recordings, and interview transcripts. Analyses of data showed that students constructed meaningful understandings through on-line inquiry, although the accuracy and depth of their understandings varied. The findings suggest that students might develop accurate and in-depth understandings if they use search and assess strategies appropriately, if resources are thoughtfully chosen, and if support from the learning environment is extensively provided. This research lends evidence to questions regarding the value of students engaging in on-line inquiry. © 2003 Wiley Periodicals, Inc. J Res Sci Teach 40: 323,346, 2003 [source]


Partisan Polarization and Congressional Accountability in House Elections

AMERICAN JOURNAL OF POLITICAL SCIENCE, Issue 2 2010
David R. Jones
Early research led scholars to believe that institutional accountability in Congress is lacking because public evaluations of its collective performance do not affect the reelection of its members. However, a changed partisan environment along with new empirical evidence raises unanswered questions about the effect of congressional performance on incumbents' electoral outcomes over time. Analysis of House reelection races across the last several decades produces important findings: (1) low congressional approval ratings generally reduce the electoral margins of majority party incumbents and increase margins for minority party incumbents; (2) partisan polarization in the House increases the magnitude of this partisan differential, mainly through increased electoral accountability among majority party incumbents; (3) these electoral effects of congressional performance ratings hold largely irrespective of a member's individual party loyalty or seat safety. These findings carry significant implications for partisan theories of legislative organization and help explain salient features of recent Congresses. [source]


Racial Metaphors: Interpreting Sex and AIDS in Africa

DEVELOPMENT AND CHANGE, Issue 5 2003
Eileen Stillwaggon
Western preconceptions regarding African sexuality distorted early research on the social context of AIDS in Africa and limited the scope of preventive policies. Key works cited repeatedly in the social science and policy literature constructed a hypersexualized pan,African culture as the main reason for the high prevalence of HIV in sub,Saharan Africa. Africans were portrayed as the social ,Other' in works marked by sweeping generalizations and innuendo, rather than useful comparative data on sexual behaviour. Although biomedical studies demonstrate the role of numerous factors that influence HIV transmission among poor people, a narrowly behavioural explanation dominated the AIDS,in,Africa discourse for over a decade and still circumscribes preventive strategies in Africa and elsewhere. [source]


Occupational therapy using a sensory integrative approach for children with developmental disabilities

DEVELOPMENTAL DISABILITIES RESEARCH REVIEW, Issue 2 2005
Roseann C. Schaaf
Abstract This article provides an introduction and overview of sensory integration theory as it is used in occupational therapy practice for children with developmental disabilities. This review of the theoretical tenets of the theory, its historical foundations, and early research provides the reader with a basis for exploring current uses and applications. The key principles of the sensory integrative approach, including concepts such as "the just right challenge" and "the adaptive response" as conceptualized by A. Jean Ayres, the theory's founder, are presented to familiarize the reader with the approach. The state of research in this area is presented, including studies underway to further delineate the subtypes of sensory integrative dysfunction, the neurobiological mechanisms of poor sensory processing, advances in theory development, and the development of a fidelity measure for use in intervention studies. Finally, this article reviews the current state of the evidence to support this approach and suggests that consensual knowledge and empirical research are needed to further elucidate the theory and its utility for a variety of children with developmental disabilities. This is especially critical given the public pressure by parents of children with autism and other developmental disabilities to obtain services and who have anecdotally noted the utility of sensory integration therapy for helping their children function more independently. Key limiting factors to research include lack of funding, paucity of doctorate trained clinicians and researchers in occupational therapy, and the inherent heterogeneity of the population of children affected by sensory integrative dysfunction. A call to action for occupational therapy researchers, funding agencies, and other professions is made to support ongoing efforts and to develop initiatives that will lead to better diagnoses and effective intervention for sensory integrative dysfunction, which will improve the lives of children and their families. © 2005 Wiley-Liss, Inc. MRDD Research Reviews 2005;11:143,148. [source]


Early 20th century Arctic warming in retrospect

INTERNATIONAL JOURNAL OF CLIMATOLOGY, Issue 9 2010
Kevin R. Wood
Abstract The major early 20th century climatic fluctuation (,1920,1940) has been the subject of scientific enquiry from the time it was detected in the 1920s. The papers of scientists who studied the event first-hand have faded into obscurity but their insights are relevant today. We review this event through a rediscovery of early research and new assessments of the instrumental record. Much of the inter-annual to decadal scale variability in surface air temperature (SAT) anomaly patterns and related ecosystem effects in the Arctic and elsewhere can be attributed to the superposition of leading modes of variability in the atmospheric circulation. Meridional circulation patterns were an important factor in the high latitudes of the North Atlantic during the early climatic fluctuation. Sea surface temperature (SST) anomalies that appeared during this period were congruent with low-frequency variability in the climate system but were themselves most likely the result of anomalous forcing by the atmosphere. The high-resolution data necessary to verify this hypothesis are lacking, but the consistency of multiple lines of evidence provides strong support. Our findings indicate that early climatic fluctuation is best interpreted as a large but random climate excursion imposed on top of the steadily rising global mean temperature associated with anthropogenic forcing. Copyright © 2009 Royal Meteorological Society [source]


From collagen chemistry towards cell therapy , a personal journey

INTERNATIONAL JOURNAL OF EXPERIMENTAL PATHOLOGY, Issue 4 2007
Michael E. Grant
Summary The Fell,Muir Award requires the recipient to deliver a lecture and a review manuscript which provides a personal overview of significant scientific developments in the field of matrix biology over the period of the recipient's career. In this context, this review considers the collagen family of structural proteins and the advances in biochemical, molecular biological and genetic techniques which led to the elucidation of the structure, synthesis and function of this important group of extracellular matrix constituents. Particular attention is focussed on early research on the identification and assembly of the soluble precursors of collagen types I and II, and the identification of the precursor of basement membrane collagen type IV. In subsequent studies investigating the maintenance of the chick chondrocyte phenotype in culture, the influence of the extracellular milieu was found to influence markedly both cell morphology and collagen gene expression. These studies led to the discovery of collagen type X whose expression is restricted to hypertrophic chondrocytes at sites of endochondral ossification. Such research provided a prelude to investigations of mammalian endochondral ossification which is known to be aberrant in a variety of human chondrodysplasias and is reactivated in bone fracture repair and in osteoarthritis. The cloning of bovine and then human collagen type X genes facilitated studies in relevant human diseases and contributed to the discovery of mutations in the COL10A1 gene in families with metaphyseal chondrodysplasia type Schmid. Clustering of mutations in the C-terminal domain of the type X collagen molecule has now been widely documented and investigations of the pathogenic mechanisms in animal models are beginning to suggest the prospect of novel treatment strategies. [source]


Re-thinking the complexities of ,culture': what might we learn from Bourdieu?

NURSING INQUIRY, Issue 1 2007
M. Judith Lynam
In this paper we continue an ongoing dialogue that has as its goal the critical appraisal of theoretical perspectives on culture and health, in an effort to move forward scholarship on culture and health. We draw upon a programme of scholarship to explicate theoretical tensions and challenges that are manifest in the discourses on culture and health and to explore the possibilities Bourdieu's theoretical perspective offers for reconciling them. That is, we hope to demonstrate the need to move beyond descriptions ,of' culture to an understanding of cultures as dynamic, and to show ways cultural practices create contexts that have the potential to foster or impede health. In our early research, largely undertaken in Canada's multicultural context, we sought to make visible the ways in which culture shaped conceptions of health and influenced health practices of immigrant groups. In recent years this focus has expanded to include populations that reflect the cultural and social diversity of our region. From the outset we attempted to move towards a conception of culture as negotiated, unifying, transformative and dynamic. While this position continues to hold appeal we are continually reminded that, despite our leanings towards constructivism, there is salience to the notion of culture as having enduring elements. It is this tension between the view of culture as embodied and enduring and culture as constructed and dynamic that we seek to examine. We explore whether Bourdieu's theoretical perspective offers promise for reconciling these apparently competing views. Using exemplars from our research we share insights that Bourdieu's work has offered to our analyses, thereby enabling us to move towards a view of culture that holds in tension these apparently contradictory positions of culture as both essence (albeit unstable, negotiated) and constructed. [source]