Quantifying pursuit diving seabirds' associations with fine-scale physical features in a high tidal energy environment

The rapid increase in the number of tidal stream turbine arrays will create novel and unprecedented levels of anthropogenic activity within habitats characterized by horizontal current speeds exceeding 2 ms−1. However, the potential impacts on pursuit‐diving seabirds exploiting these tidal stream environments remain largely unknown. Identifying similarities between the fine‐scale physical features (100s of metres) suitable for array installations, and those associated with foraging pursuit‐diving seabirds, could identify which species are most vulnerable to either collisions with moving components, or displacement from these installations. A combination of vessel‐based observational surveys, Finite Volume Community Ocean Model outputs and hydroacoustic seabed surveys provided concurrent measures of foraging distributions and physical characteristics at a fine temporal (15 min) and spatial (500 m) resolution across a tidal stream environment suitable for array installations, during both breeding and non‐breeding seasons. These data sets were then used to test for associations between foraging pursuit‐diving seabirds (Atlantic puffins Fratercula arctica, black guillemots Cepphus grylle, common guillemots Uria aalge, European shags Phalacrocorax aristotelis) and physical features. These species were associated with areas of fast horizontal currents, slow horizontal currents, high turbulence, downward vertical currents and also hard–rough seabeds. The identity and strength of associations differed among species, and also within species between seasons, indicative of interspecific and intraspecific variations in habitat use. However, Atlantic puffins were associated particularly strongly with areas of fast horizontal currents during breeding seasons, and European shags with areas of rough–hard seabeds and downward vertical currents during non‐breeding seasons. Synthesis and applications. Atlantic puffins’ strong association with fast horizontal current speeds indicates that they are particularly likely to interact with installations during breeding seasons. Any post‐installation monitoring and mitigation measures should therefore focus on this species and season. The multi‐species associations with high turbulence and downward vertical currents, which often coincide with fast horizontal current speeds, also highlight useful pre‐installation mitigation measures via the omission of devices from these areas, reducing the overall likelihood of interactions. Environmental impact assessments (EIA) generally involve once‐a‐month surveys across 2‐year periods. However, the approaches used in this study show that more focussed surveys can greatly benefit management strategies aiming to reduce the likelihood of negative impacts by facilitating the development of targeted mitigation measures. It is therefore recommended that these approaches contribute towards EIA within development sites.

Invasion by the amphipod Gammarus pulex alters community composition of native freshwater macroinvertebrates

Assessing the effects of invading species on native community structure is often confounded by environmental factors and weakened by lack of replicated, long-term pre- and post-invasion monitoring. Here, we uncouple the community effects of a freshwater amphipod invader from environmental differences. In Irish rivers, the introduced Gammarus pulex replaces the native Gammarus duebeni celticus. However, the River Lissan in Northern Ireland is dissected by a weir that has slowed the upstream invasion by G. pulex. This allowed us in 2000 to sample three contiguous 150-m reaches that were (1) G. pulex dominated; (2) mixed Gammarus spp.; and (3) G. duebeni celticus only. In 2003, we resampled these reaches and one additional of mixed Gammarus species and one with only G. duebeni celticus further upstream. In temperature, conductivity, and pH, there were statistically significant but no biologically relevant differences among the five reaches of 2003, and between the three reaches surveyed in both years. Although there was evidence of recovery in macroinvertebrate diversity and richness in invaded reaches between years, continued upstream invasion was associated with sustained reductions in these community metrics as compared to un-invaded sites. Community ordination indicated (1) different associations of community composition attributed to the distribution, abundance, and biomass of the invader; and (2) increasing similarity of invaded communities over time. The impact mechanisms of G. pulex on macroinvertebrate community composition may include predation and competition. The consequences of the observed community changes for ecosystem functioning require further investigation.

Associations between Mothers' Experiences with the Troubles in Northern Ireland and Mothers' and Childrens' Psychological Functioning: The Moderating Role of Social Identity.

Relatively little research has examined the relations between growing up in a community with a history of protracted violent political conflict and subsequent generations' well-being. The current article examines relations between mothers' self-report of the impact that the historical political violence in Northern Ireland (known, as the Troubles) has on her and her child's current mental health. These relations are framed within the social identity model of stress, which provides a framework for understanding coping responses within societies that have experienced intergroup conflict. Mother-child dyads (N = 695) living in Belfast completed interviews. Results suggest that the mother-reported impact of the Troubles continue to be associated with mothers' mental health, which, in, turn, is associated with her child's adjustment. The strength of mothers' social identity moderated pathways between the impact of the Troubles and her mental health, consistent with the social identity model of stress. (C) 2010 Wiley Periodicals, Inc.

The mechanistic basis of interactions between mycorrhizal associations and toxic metal cations

Mycorrhizal associations, including ericoid, arbuscular and ecto-mycorrhizas, are found colonising highly metal contaminated soils. How do mycorrhizal fungi achieve metal resistance, and does this metal resistance confer enhanced metal resistance to plant symbionts? These are the questions explored in this review by considering the mechanistic basis of mycorrhizal adaptation to metal cations. Recent molecular and physiological studies are discussed. The review reappraises what constitutes metal resistance in the context of mycorrhizal associations and sets out the constitutive and adaptive mechanisms available for mycorrhizas to adapt to contaminated sites. The only direct evidence of mycorrhizal adaptation to metal cation pollutants is the exudation of organic acids to alter pollutant availability in the rhizosphere. This is not to say that other mechanism of adaptation do not exist, but conclusive evidence of adaptive mechanisms of tolerance are lacking. For constitutive mechanisms of resistance, there is much more evidence, and mycorrhizas possess the same constitutive mechanisms for dealing with metal contaminants as other organisms. Rhizosphere chemistry is critical to understanding the interactions of mycorrhizas with polluted soils. Soil pH, mineral weathering, pollutant precipitation with plant excreted organic acids all may have a key role in constitutive and adaptive tolerance of mycorrhizal associations present on contaminated sites. The responses of mycorrhizal fungi to toxic metal cations are diverse. This, linked to the fact that mycorrhizal diversity is normally high, even on highly contaminated sites, suggests that this diversity may have a significant role in colonisation of contaminated sites by mycorrhizas. That is, the environment selects for the fungal community that can best cope with the environment, so having diverse physiological attributes will enable colonisation of a wide range of metal contaminated micro-habitats.

Community-acquired infections and their association with myeloid malignancies

Introduction: Antigenic stimulation is a proposed aetiologic mechanism for many haematological malignancies. Limited evidence suggests that community-acquired infections may increase the risk of acute myeloid leukaemia (AML) and myelodysplastic syndrome (MDS). However, associations with other myeloid malignancies including chronic myeloid leukaemia (CML) and myeloproliferative neoplasms (MPNs) are unknown.

Materials and methods: Using the Surveillance, Epidemiology and End Result (SEER)-Medicare database, fourteen community-acquired infections were compared between myeloid malignancy patients [AML (n=8489), CML (n=3626) diagnosed 1992-2005; MDS (n=3072) and MPNs (n=2001) diagnosed 2001-2005; and controls (200,000 for AML/CML and 97,681 for MDS/MPN]. Odds ratios (ORs) and 95% confidence intervals were adjusted for gender, age and year of selection excluding infections diagnosed in the 13-month period prior to selection to reduce reverse causality.

Results: Risk of AML and MDS respectively, were significantly associated with respiratory tract infections, bronchitis (ORs 1.20 [95% CI: 1.14-1.26], 1.25 [95% CI: 1.16-1.36]), influenza (ORs 1.16 [95% CI: 1.07-1.25], 1.29 [95% CI: 1.16-1.44]), pharyngitis (ORs 1.13 [95% CI: 1.06-1.21], 1.22 [95% CI: 1.11-1.35]), pneumonia (ORs 1.28 [95% CI: 1.21-1.36], 1.52 [95% CI: 1.40-1.66]), sinusitis (ORs 1.23 [95% CI: 1.16-1.30], 1.25 [95% CI: 1.15-1.36]) as was cystitis (ORs 1.13 [95% CI: 1.07-1.18], 1.26 [95% CI: 1.17-1.36]). Cellulitis (OR 1.51 [95% CI: 1.39-1.64]), herpes zoster (OR 1.31 [95% CI: 1.14-1.50]) and gastroenteritis (OR 1.38 [95% CI: 1.17-1.64]) were more common in MDS patients than controls. For CML, associations were limited to bronchitis (OR 1.21 [95% CI: 1.12-1.31]), pneumonia (OR 1.49 [95% CI: 1.37-1.62]), sinusitis (OR 1.19 [95% CI: 1.09-1.29]) and cellulitis (OR 1.43 [95% CI: 1.32-1.55]) following Bonferroni correction. Only cellulitis (OR 1.34 [95% CI: 1.21-1.49]) remained significant in MPN patients. Many infections remained elevated when more than 6 years of preceding claims data were excluded.

Discussion: Common community-acquired infections may be important in the malignant transformation of the myeloid lineage. Differences in the aetiology of classic MPNs and other myeloid malignancies require further exploration.

Common community-acquired infections and subsequent risk of multiple myeloma: a population-based study

The role of bacteria and viruses as aetiological agents in the pathogenesis of cancer has been well established for several sites, including a number of haematological malignancies. Less clear is the impact of such exposures on the subsequent development of multiple myeloma (MM). Using the population-based U.S. Surveillance Epidemiology and End Results-Medicare dataset, 15,318 elderly MM and 200,000 controls were identified to investigate the impact of 14 common community-acquired infections and risk of MM. Odds ratios (ORs) and associated 95% confidence intervals (CIs) were adjusted for sex, age and calendar year of selection. The 13-month period prior to diagnosis/selection was excluded. Risk of MM was increased by 5-39% following Medicare claims for eight of the investigated infections. Positive associations were observed for several infections including bronchitis (adjusted OR 1.14, 95% CI 1.09-1.18), sinusitis (OR 1.15, 95% CI 1.10-1.20) pneumonia (OR 1.27, 95% CI 1.21-1.33), herpes zoster (OR 1.39, 95% CI 1.29-1.49) and cystitis (OR 1.09, 95% CI 1.05-1.14). Each of these infections remained significantly elevated following the exclusion of more than 6 years of claims data. Exposure to infectious antigens may therefore play a role in the development of MM. Alternatively, the observed associations may be a manifestation of an underlying immune disturbance present several years prior to MM diagnosis and thereby part of the natural history of disease progression.

Individual factors and perceived community characteristics in relation to mental health and mental well-being

Background
It has been argued that though correlated with mental health, mental well-being is a distinct entity. Despite the wealth of literature on mental health, less is known about mental well-being. Mental health is something experienced by individuals, whereas mental well-being can be assessed at the population level. Accordingly it is important to differentiate the individual and population level factors (environmental and social) that could be associated with mental health and well-being, and as people living in deprived areas have a higher prevalence of poor mental health, these relationships should be compared across different levels of neighbourhood deprivation.

Methods
A cross-sectional representative random sample of 1,209 adults from 62 Super Output Areas (SOAs) in Belfast, Northern Ireland (Feb 2010 – Jan 2011) were recruited in the PARC Study. Interview-administered questionnaires recorded data on socio-demographic characteristics, health-related behaviours, individual social capital, self-rated health, mental health (SF-8) and mental well-being (WEMWBS). Multi-variable linear regression analyses, with inclusion of clustering by SOAs, were used to explore the associations between individual and perceived community characteristics and mental health and mental well-being, and to investigate how these associations differed by the level of neighbourhood deprivation.

Results
Thirty-eight and 30 % of variability in the measures of mental well-being and mental health, respectively, could be explained by individual factors and the perceived community characteristics. In the total sample and stratified by neighbourhood deprivation, age, marital status and self-rated health were associated with both mental health and well-being, with the ‘social connections’ and local area satisfaction elements of social capital also emerging as explanatory variables. An increase of +1 in EQ-5D-3 L was associated with +1SD of the population mean in both mental health and well-being. Similarly, a change from ‘very dissatisfied’ to ‘very satisfied’ for local area satisfaction would result in +8.75 for mental well-being, but only in the more affluent of areas.

Conclusions
Self-rated health was associated with both mental health and mental well-being. Of the individual social capital explanatory variables, ‘social connections’ was more important for mental well-being. Although similarities in the explanatory variables of mental health and mental well-being exist, socio-ecological interventions designed to improve them may not have equivalent impacts in rich and poor neighbourhoods.

Governing through community? A comparative study of changing management practices in mixed tenure housing development

An important feature of UK housing policy has been the promotion of consortia between local authorities, private developers and housing associations in order to develop mixed tenure estates to meet a wide range of housing needs. Central to this approach has been a focus on the management of neighbourhoods, based on the assumption that high densities and the inter-mixing of tenure exacerbates the potential for incivility and anti-social behaviour and exerts a disproportionate impact on residents' quality of life. Landlord strategies are therefore based on a need to address such issues at an early stage in the development. In some cases community-based, third sector organisations are established in order to manage community assets and to provide a community development service to residents. In others, a common response is to appoint caretakers and wardens to tackle social and environmental problems before they escalate and undermine residents’ quality of life. A number of innovative developments have promoted such neighbourhood governance approaches to housing practice by applying community development methods to address potential management problems. In the process, there is an increasing trend towards strategies that shape behaviour, govern ethical conduct, promote aesthetic standards and determine resident and landlord expectations. These processes can be related to the wider concept of governmentality whereby residents are encouraged to become actively engaged in managing their own environments, based on the assumption that this produces more cohesive, integrated communities and projects positive images. Evidence is emerging from a number of countries that increasingly integrated and mutually supportive roles and relationships between public, private and third sector agencies are transforming neighbourhood governance in similar ways. This paper will review the evidence for this trend towards community governance in mixed housing developments by drawing on a series of UK case studies prepared for two national agencies in 2007. It will review in particular the contractual arrangements with different tenures, identify codes and guidelines promoting 'good neighbour' behaviour and discuss the role of community development trusts and other neighbourhood organisations in providing facilities and services, designed to generate a well integrated community. The second part of the paper will review evidence from the USA and Australia to see how far there is a convergence in this respect in advanced economies. The paper will conclude by discussing the extent to which housing management practice is changing, particularly in areas of mixed development, whether there is a convergence in practice between different countries and how far these trends are supported by theories of governmentality.

Managing Volunteers in Canadian Community Sport Organizations

This study examined the use of human resource management (HRM) practices with volunteers in Canadian Community Sport Organizations (CSOs). Using the Volunteer Management Inventory (VMI; Cuskelly, Taylor, Hoye & Darcy, 2006), 219 leaders of associations in basketball, curling, ice hockey, skating, skiing, swimming, and volleyball participated in this study and identified current trends in HRM practices and perceived issues in the retention of volunteers. Data collected was analyzed using mean and descriptive statistics, T-tests, ANOVAs, and regression analyses. Results indicate that there is a varying use of HRM practices amongst the organizations, and also a significant correlation between the use of HRM practices and the retention of volunteers, particularly board members. Implications and future research directions are discussed regarding how HRM practices and principles may be applied to CSOs.

Factors associated with psychotropic drug use among community-dwelling older persons: A review of empirical studies

Affiliation: Faculté de pharmacie, Université de Montréal

Associations de femmes immigrantes à Montréal : participer, appartenir, être reconnues : une voie d'intégration symbolique à la société locale

Une étude de terrain a été accomplie dans le milieu associatif immigrant féminin de Montréal afin d’investiguer le rôle que peut avoir la participation à une association de femmes immigrantes quant à l’intégration de celles-ci à leur nouvelle société. Deux associations ont été ciblées pour cette étude : le Centre Femmes du monde à Côte-des-Neiges et le Comité des femmes des communautés culturelles, issu de la Fédération des femmes du Québec. Le premier est un organisme communautaire de quartier et le second, un groupe de défense et de revendication de droits des femmes immigrantes, à l’échelle de la province. Une période d’observation participante s’échelonnant de février 2007 à juin 2008 ainsi que 21 entrevues individuelles auprès de participantes ont été réalisées. L’analyse de ces données montre que la participation contribue, d’une manière tantôt similaire, tantôt distincte à l’intérieur des deux espaces de participation, à différentes dimensions de l’intégration des participantes : l’adaptation fonctionnelle, l’intégration sociale et plus particulièrement l’intégration symbolique. L’aspect symbolique de l’intégration, discuté en profondeur dans ce mémoire, sous-tend les idées de développement d’un sentiment d’appartenance et de reconnaissance sociale à la fois individuelle et collective des femmes immigrantes à l’intérieur de leur nouvelle société.

Rôle des associations de quartier dans l’organisation des services publics dans les quartiers précaires à Port-au-Prince : Une étude de cas à Village Solidarité

Port-au-Prince, la ville la plus peuplée des Caraïbes est ceinturée de quartiers précaires connus sous l’appellation de bidonvilles. Ces quartiers construits généralement sur des terrains dangereux, envahis par une population en quête de logement, abritent la plus forte proportion des habitants de la ville. Ils constituent en même temps des lieux d’observation de l’inimaginable capacité des populations locales à garantir l’accès à certains services. À travers l’action d’une association locale évoluant à Village solidarité dans la zone métropolitaine de Port-au-Prince, nous avons étudié les apports et les limites des stratégies utilisées dans l’organisation de services publics d’électricité. L’analyse repose fondamentalement sur une approche de développement local reposant sur cinq notions complémentaires et interreliées qui sont les suivantes : le projet commun, l’appartenance et l’identité collective, les ressources, le leadership, l’opportunité politique. Les résultats de la recherche font état d’un projet commun aux contours assez flous qui reflète des insuffisances au niveau des modes de pensée, et au niveau des ressources matérielles et financières mises en jeu. Le style de leadership en place au sein de l’association est teinté de déterminisme religieux, pris au piège des manœuvres clientélistes des politiciens locaux et infantilisé par l’action des agences gouvernementales. A la fin de l’étude nous dégageons des pistes pour dynamiser les forces du milieu et réorienter l’action associative afin d’aller vers un projet collectif. Ces pistes reposent fondamentalement sur la transformation des modes de pensée influençant l’action et la transformation des pratiques organisationnelles.

Le syndrome métabolique et ses associations avec les troubles de la mobilité : différence de genre dans l'étude internationale sur la mobilité des personnes âgées (IMIAS)

Introduction : Peu d’études internationales ont examiné les différences entre les hommes et les femmes dans la prévalence du syndrome métabolique (SM). Objectifs : Comparer les prévalences du syndrome métabolique chez les femmes et les hommes et évaluer le rôle du genre dans les associations entre le SM et les troubles de mobilité (TM). Méthodes : Nous avons utilisé les données repères de l’étude internationale sur la mobilité des personnes âgées de 65-74 ans (n=1995), des villes de Kingston (Ontario), Saint-Hyacinthe (Québec), Tirana (Albanie), Manizales (Colombie), et Natal (Brésil). Parmi les participants, 1728 ont donné un échantillon de sang pour des analyses. Les ratios de prévalence (RP) du SM et des TM ont été dérivés par la régression de Poisson. Résultats : Les prévalences du SM étaient significativement plus élevées chez les femmes dans les villes non canadiennes, cette différence entre sexes n’était pas significative dans les villes canadiennes. Relativement aux femmes de Kingston, les prévalences du SM étaient plus élevées chez les femmes de Tirana (RP= 2,66; 95 % IC = 1,98-3,58) et de Natal (RP= 2,21; 95 % IC = 1,52-3,22) et non significatives chez celles de Manizales et de Saint-Hyacinthe. Chez les hommes, peu de différences significatives étaient observées. Le SM n’était pas associé à la mobilité dans les villes non canadiennes. Conclusion : Nos résultats suggèrent que le genre est un facteur de risque pour le SM. Des recherches sur les relations entre le SM, la mobilité et le genre devraient être entreprises. Mots-clés : Syndrome métabolique, troubles de la mobilité, genre, santé internationale

Coronary heart disease risk screening: the community pharmacy Healthy Heart Assessment Service

Objectives We examined the characteristics and CHD risks of people who accessed the free Healthy Heart Assessment (HHA) service operated by a large UK pharmacy chain from August 2004 to April 2006. Methods Associations between participants’ gender, age, and socioeconomics were explored in relation to calculated 10-year CHD risks by cross-tabulation of the data. Specific associations were tested by forming contingency tables and using Pearson chi-square (χ2). Results Data from 8,287 records were analysable; 5,377 were at low and 2,910 at moderate-to-high CHD risk. The likelihood of moderate-to-high risk for a male versus female participant was significantly higher with a relative risk ratio (RRR) 1.72 (P < 0.001). A higher percentage of those in socioeconomic categories ‘constrained by circumstances’ (RRR 1.15; P < 0.05) and ‘blue collar communities’ (RRR 1.13; P < 0.05) were assessed with moderate-to-high risk compared to those in ‘prospering suburbs’. Conclusions People from ‘hard-to-reach’ sectors of the population, men and people from less advantaged communities, accessed the HHA service and were more likely to return moderate-to-high CHD risk. Pharmacists prioritised provision of lifestyle information above the sale of a product. Our study supports the notion that pharmacies can serve as suitable environments for the delivery of similar screening services.

Interpretation bias and anxiety in childhood: stability, specificity and longitudinal associations

Background: Biases in the interpretation of ambiguous material are central to cognitive models of anxiety; however, understanding of the association between interpretation and anxiety in childhood is limited. To address this, a prospective investigation of the stability and specificity of anxious cognitions and anxiety and the relationship between these factors was conducted. Method: Sixty-five children (10–11 years) from a community sample completed measures of self-reported anxiety, depression, and conduct problems, and responded to ambiguous stories at three time points over one-year. Results: Individual differences in biases in interpretation of ambiguity (specifically “anticipated distress” and “threat interpretation”) were stable over time. Furthermore, anticipated distress and threat interpretation were specifically associated with anxiety symptoms. Distress anticipation predicted change in anxiety symptoms over time. In contrast, anxiety scores predicted change in threat interpretation over time. Conclusions: The results suggest that different cognitive constructs may show different longitudinal links with anxiety. These preliminary findings extend research and theory on anxious cognitions and their link with anxiety in children, and suggest that these cognitive processes may be valuable targets for assessment and intervention.