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Purpose: To address the care needs of older adults, it is important to identify and understand the forms of care support older adults received. This systematic review aims to examine the social networks of older adults receiving informal or formal care and the factors that influenced their networks., Methods: A systematic review was conducted by searching six databases from inception to January 31, 2023. The review included primary studies focusing on older adults receiving long-term care, encompassing both informal and formal care. To assess the risk of bias in the included studies, validated appraisal tools specifically designed for different study types were utilized. Network analysis was employed to identify the grouping of study concepts, which subsequently formed the foundation for describing themes through narrative synthesis., Results: We identified 121 studies relating to the formal and informal care of older adults' networks. A variety of social ties were examined by included studies. The most commonly examined sources of care support were family members (such as children and spouses) and friends. Several factors were consistently reported to influence the provision of informal care, including the intensity of networks, reciprocity, and geographical proximity. In terms of formal care utilization, older age and poor health status were found to be associated with increased use of healthcare services. Additionally, physical limitations and cognitive impairment were identified as factors contributing to decreased social engagement., Conclusion: This review found that older people were embedded within a diverse network. The findings of this review emphasize the importance of recognizing and incorporating the diversity of social networks in care plans and policies to enhance the effectiveness of interventions and improve the overall well-being of older adults., (© 2023. BioMed Central Ltd., part of Springer Nature.)

Background: Adolescent depression is common, long-lasting and debilitating. Behavioural Activation (BA) is a brief, evidence-based therapy for depression in adults with promising outcomes for young people., Objectives: We sought to understand how young people, their parents and therapists experienced manualised BA for depression within Child and Adolescent Mental Health Services., Design: Participants in a randomised controlled trial aged 12 to17 with depression, their parents and therapists were invited to a semi-structured interview with a researcher to explore their experiences of receiving, supporting or delivering BA., Methods: Six young people, five parents and five therapists were interviewed. Verbatim interview transcripts were coded using thematic analysis., Results: Factors that may optimise delivery of BA were: boosting the young person's motivation, tailoring parental input to the young person's needs/wishes and developing a positive collaboration between the young person and therapist. Engagement with treatment may be hindered by a mismatch between BA delivery and young person's preferences, concurrent mental health comorbidities that are not addressed within a wider care package, lack of parental support and therapist preconceptions against manualised therapy or BA., Conclusions: Manualised BA for young people requires flexibility and adjustment to meet individual and family needs. Therapist preparation could dispel hindering preconceptions about the suitability and potential value of this brief and simple intervention for young people with complex needs and different learning styles., (© 2023 The Authors. Psychology and Psychotherapy: Theory, Research and Practice published by John Wiley & Sons Ltd on behalf of The British Psychological Society.)

Timing of breeding, an important driver of fitness in many populations, is widely studied in the context of global change, yet despite considerable efforts to identify environmental drivers of seabird nesting phenology, for most populations we lack evidence of strong drivers. Here we adopt an alternative approach, examining the degree to which different populations positively covary in their annual phenology to infer whether phenological responses to environmental drivers are likely to be (a) shared across species at a range of spatial scales, (b) shared across populations of a species or (c) idiosyncratic to populations. We combined 51 long-term datasets on breeding phenology spanning 50 years from nine seabird species across 29 North Atlantic sites and examined the extent to which different populations share early versus late breeding seasons depending on a hierarchy of spatial scales comprising breeding site, small-scale region, large-scale region and the whole North Atlantic. In about a third of cases, we found laying dates of populations of different species sharing the same breeding site or small-scale breeding region were positively correlated, which is consistent with the hypothesis that they share phenological responses to the same environmental conditions. In comparison, we found no evidence for positive phenological covariation among populations across species aggregated at larger spatial scales. In general, we found little evidence for positive phenological covariation between populations of a single species, and in many instances the inter-year variation specific to a population was substantial, consistent with each population responding idiosyncratically to local environmental conditions. Black-legged kittiwake Rissa tridactyla was the exception, with populations exhibiting positive covariation in laying dates that decayed with the distance between breeding sites, suggesting that populations may be responding to a similar driver. Our approach sheds light on the potential factors that may drive phenology in our study species, thus furthering our understanding of the scales at which different seabirds interact with interannual variation in their environment. We also identify additional systems and phenological questions to which our inferential approach could be applied., (© 2022 The Authors. Journal of Animal Ecology © 2022 British Ecological Society.)

Background: the very old (aged ≥ 85) are the fastest growing subpopulation of many developed countries but little is known about how their place of residence changes over time. We investigated transitions in residential status in an inception cohort of 85-year-olds over 10 years., Methods: data were drawn from the Newcastle 85+ Study, a population-based longitudinal study of individuals aged 85 in 2006 (i.e. born in 1921) and permanently registered with a Newcastle or North Tyneside general practice (n = 849)., Results: 76.3% lived in standard (non-supported) housing at baseline (age = 85) and few moved into a care home. The majority either remained in standard housing or died over the study period. A significant number who lived in standard housing had dependency and frailty at baseline., Discussion: given the undersupply of care homes, and preference of older people to remain in their own homes as they age, the questions posed by this analysis are how to survive to 85 and remain in standard housing until the age of 85? And how, and by whom, are such a group being supported to remain at home? We need qualitative research to explore the informal-formal care networks of the very old., (© The Author(s) 2022. Published by Oxford University Press on behalf of the British Geriatrics Society. All rights reserved. For permissions, please email: journals.permissions@oup.com.)

In the health field, there is great interest in the role empowerment might play in reducing social inequalities in health. Empowerment is understood here as the processes of developing capabilities that individuals and/or communities need to exercise control over decisions and actions impacting on their lives and health. There is a fundamental problem, however, in identifying and measuring capabilities for collective control that emerge at the level of the collective, with much of the existing literature focusing on individual measures even where community-level processes are concerned. Collective measures need to capture the dynamics of interactions within and between groups, not simply aggregate individual-level measures. This article, Part 2 in a three-part series, takes up the challenge of identifying qualitative markers of capabilities for collective control. We applied the emancipatory power framework (EPF) reported in Part 1 of the series, to qualitative data generated during a longitudinal evaluation of a major English area-based empowerment initiative, the Big Local (BL). We identified empirical 'markers' of shifts towards greater collective control pertaining to each of the 'power' dimensions in the EPF-'power within', 'power with' and 'power to'-and markers of communities exercising 'power over' other institutions/community members. These markers can usefully be applied in the evaluation planning and evaluation of empowerment initiatives. Part 3 in the series uses these markers and a second analytical framework developed during our evaluation of BL to explore how power dynamics unfold in participatory spaces in BL neighbourhoods., (© The Author(s) 2020. Published by Oxford University Press. All rights reserved. For permissions, please email: journals.permissions@oup.com.)

This article-third in a series of three-uses theoretical frameworks described in Part 1, and empirical markers reported in Part 2, to present evidence on how power dynamics shifted during the early years of a major English community empowerment initiative. We demonstrate how the capabilities disadvantaged communities require to exercise collective control over decisions/actions impacting on their lives and health (conceptualized as emancipatory power) and the exercise of power over these communities (conceptualized as limiting power) were shaped by the characteristics of participatory spaces created by and/or associated with this initiative. Two main types of participatory spaces were identified: governance and sense-making. Though all forms of emancipatory power emerged in all spaces, some were more evident in particular spaces. In governance spaces, the development and enactment of 'power to' emerged as residents made formal decisions on action, allocated resources and managed accountability. Capabilities for alliance building-power with-were more likely to emerge in these spaces, as was residents' resistance to the exercise of institutional power over them. In contrast, in sense-making spaces residents met informally and 'made sense' of local issues and their ability to influence these. These processes led to the development of power within capabilities and power to resist stigmatizing forms of productive power. The findings highlight the importance of designing community initiatives that: nurture diverse participatory spaces; attend to connectivity between spaces; and identify and act on existing power dynamics undermining capabilities for collective control in disadvantaged communities., (© The Author(s) 2020. Published by Oxford University Press.)

Background: Behavioural Activation (BA) treatment effectively reduces symptoms of depression in adults and is more cost-effective than more complex therapies. Two recent systematic reviews of BA for depression in young people highlighted the need for more studies in this area., Methods: In order to evaluate the acceptability of BA treatment for adolescents with depression and the feasibility of conducting a trial of this intervention in Child and Adolescent Mental Health Services (CAMHS), 22 patients from across three sites were randomised to BA or usual CAMHS care. Existing CAMHS staff were trained to deliver the manualised intervention via a brief course. Following treatment, young people and their parents/carers were asked to complete a feedback survey. Symptoms and functioning were assessed at 3- and 6-month follow-up. The trial was registered with the ISRCTN Registry (ref: ISRCTN52147450; https://www.isrctn.com/)., Results: Recruitment targets were achieved through screening large numbers of CAMHS service users. Intervention adherence by the participating adolescents was high (median number of completed BA sessions was seven out of a total of eight). There were tentative suggestions of improvements following treatment; a large change in a positive direction for the BA group, but not for usual care, was observed by visual comparisons of mean scores on measures of depression, self-esteem and functioning. No adverse events were reported., Conclusions: The findings suggest that BA in this setting is acceptable and warrants evaluation via a fully powered randomised controlled trial., (© 2020 The Authors. Child and Adolescent Mental Health published by John Wiley & Sons Ltd on behalf of Association for Child and Adolescent Mental Health.)

As temperatures rise, timing of reproduction is changing at different rates across trophic levels, potentially resulting in asynchrony between consumers and their resources. The match-mismatch hypothesis (MMH) suggests that trophic asynchrony will have negative impacts on average productivity of consumers. It is also thought to lead to selection on timing of breeding, as the most asynchronous individuals will show the greatest reductions in fitness. Using a 30-year individual-level dataset of breeding phenology and success from a population of European shags on the Isle of May, Scotland, we tested a series of predictions consistent with the hypothesis that fitness impacts of trophic asynchrony are increasing. These predictions quantified changes in average annual breeding success and strength of selection on timing of breeding, over time and in relation to rising sea surface temperature (SST) and diet composition. Annual average (population) breeding success was negatively correlated with average lay date yet showed no trend over time, or in relation to increasing SST or the proportion of principal prey in the diet, as would be expected if trophic mismatch was increasing. At the individual level, we found evidence for stabilising selection and directional selection for earlier breeding, although the earliest birds were not the most productive. However, selection for earlier laying did not strengthen over time, or in relation to SST or slope of the seasonal shift in diet from principal to secondary prey. We found that the optimum lay date advanced by almost 4 weeks during the study, and that the population mean lay date tracked this shift. Our results indicate that average performance correlates with absolute timing of breeding of the population, and there is selection for earlier laying at the individual level. However, we found no fitness signatures of a change in the impact of climate-induced trophic mismatch, and evidence that shags are tracking long-term shifts in optimum timing. This suggests that if asynchrony is present in this system, breeding success is not impacted. Our approach highlights the advantages of examining variation at both population and individual levels when assessing evidence for fitness impacts of trophic asynchrony., (© 2020 The Authors. Journal of Animal Ecology published by John Wiley & Sons Ltd on behalf of British Ecological Society.)

Lay health workers have been utilized to deliver health promotion programmes in a variety of settings. However, few studies have sought to determine whether these programmes represent value for money, particularly in a UK context. The present study involved an economic evaluation of Wellbeing for Life, an integrated health and wellbeing service in northern England. The service combined one-to-one interventions delivered by lay health workers (known as health trainers), group wellbeing interventions, volunteering opportunities and other community development activities. Value for money was assessed using an established economic model developed with input from a panel of commissioners and providers, and the main data source was the national health trainer data collection and reporting system. Between June 2015 and January 2017, behaviour change outcomes (i.e. whether client goals in relation to diet, physical activity, smoking or other behaviours, had been achieved) were recorded for 2433 of the 3179 individuals who accessed one-to-one interventions. The level of achievement observed gave an estimated total health gain of 287.7 quality-adjusted life years (QALYs). In addition, there were 4669 health-promoting events, five asset mapping projects and 1595 occurrences of signposting to other services. Combining the value of individual behaviour change with the value of these additional activities gave an overall net cost per QALY gained of £3900 and a total estimated societal value of at least £3.45 for every £1 spent on the service. These results suggest that the Wellbeing for Life service offered good value for money. Further research is needed to systematically and comprehensively determine the societal value of similar holistic, asset-based and lay-led approaches., (Copyright © 2019 Elsevier Ltd. All rights reserved.)

In public health there is increased focus on evaluating 'complex' interventions for health improvement, examining how their multiple components interact dynamically with the contextual system in which they are delivered. Amid this complexity framing are calls for methodologies that can facilitate contextual understanding as part of the evaluation process, including ethnography. However, while ethnography's attention to 'context' has been recognised as valuable for evaluation, few questions have been raised about the possible tensions of aligning what are quite different expectations for knowledge making in evaluation and in ethnography. This paper introduces a special section illustrating empirical examples of conducting ethnography for and with evaluation of 'complex' health interventions. Central to these experiences, this paper argues, are the concepts of time and temporality through which experience, change and knowledge making are invariably structured. It considers the different expectations for time and temporality in ethnographic and evaluation research, and how the 'long conversation' of ethnography aids interpretation of an intervention's interaction with the pasts, presents and possible futures of people's health experiences. Furthermore, in understanding time not as linear and constant but experienced through a series of encounters, ethnography highlights the spaces in between action and change, vital for understanding the complex dynamics of a health intervention in context. Through temporality, this paper and the related empirical papers present an intricate exploration of the challenges and productive opportunities posed by the use of ethnography for and with evaluation.

Age-related variation in reproductive performance is ubiquitous in wild vertebrate populations and has important consequences for population and evolutionary dynamics. The ageing trajectory is shaped by both within-individual processes, such as improvement and senescence, and the among-individual effects of selective appearance and disappearance. To date, few studies have compared the role of these different drivers among species or populations. In this study, we use nearly 40 years of longitudinal monitoring data to contrast the within- and among-individual processes contributing to the reproductive ageing patterns in three albatross species (two biennial and one annual breeder) and test whether these can be explained by differences in life histories. Early-life performance in all species increased with age and was predominantly influenced by within-individual improvements. However, reproductive senescence was detected in only two of the species. In the species exhibiting senescent declines, we also detected a terminal improvement in breeding success. This is suggestive of a trade-off between reproduction and survival, which was supported by evidence of selective disappearance of good breeders. We demonstrate that comparisons of closely related species which differ in specific aspects of their life history can shed light on the ecological and evolutionary forces shaping variation in ageing patterns., (© 2017 The Authors. Journal of Animal Ecology published by John Wiley & Sons Ltd on behalf of British Ecological Society.)

Given the potential role of telomeres as biomarkers of individual health and ageing, there is an increasing interest in studying telomere dynamics in a wider range of taxa in the fields of ecology and evolutionary biology. Measuring telomere length across the lifespan in wild animal systems is essential for testing these hypotheses, and may be aided by archived blood samples collected as part of longitudinal field studies. However, sample collection, storage, and DNA extraction methods may influence telomere length measurement, and it may, therefore, be difficult to balance consistency in sampling protocol with making the most of available samples. We used two complementary approaches to examine the impacts of sample storage method on measurements of relative telomere length (RTL) by qPCR, particularly focusing on FTA (Flinders Technology Associates) cards as a long-term storage solution. We used blood samples from wandering albatrosses collected over 14 years and stored in three different ways (n = 179), and also blood samples from captive zebra finches (n = 30) that were each stored using three different methods. Sample storage method influenced RTL in both studies, and samples on FTA cards had significantly shorter RTL measurements. There was no significant correlation between RTL measured in zebra finch blood on FTA cards and the same samples stored either as frozen whole blood or as extracted DNA. These results highlight the importance of consistency of sampling protocol, particularly in the context of long-term field studies, and suggest that FTA cards should not be used as a long-term storage solution to measure RTL without validation.

There is growing interest in the effects of wind on wild animals, given evidence that wind speeds are increasing and becoming more variable in some regions, particularly at temperate latitudes. Wind may alter movement patterns or foraging ability, with consequences for energy budgets and, ultimately, demographic rates. These effects are expected to vary among individuals due to intrinsic factors such as sex, age or feeding proficiency. Furthermore, this variation is predicted to become more marked as wind conditions deteriorate, which may have profound consequences for population dynamics as the climate changes. However, the interaction between wind and intrinsic effects has not been comprehensively tested. In many species, in particular those showing sexual size dimorphism, males and females vary in foraging performance. Here, we undertook year-round deployments of data loggers to test for interactions between sex and wind speed and direction on foraging effort in adult European shags Phalacrocorax aristotelis, a pursuit-diving seabird in which males are c. 18% heavier. We found that foraging time was lower at high wind speeds but higher during easterly (onshore) winds. Furthermore, there was an interaction between sex and wind conditions on foraging effort, such that females foraged for longer than males when winds were of greater strength (9% difference at high wind speeds vs. 1% at low wind speeds) and when winds were easterly compared with westerly (7% and 4% difference, respectively). The results supported our prediction that sex-specific differences in foraging effort would become more marked as wind conditions worsen. Since foraging time is linked to demographic rates in this species, our findings are likely to have important consequences for population dynamics by amplifying sex-specific differences in survival rates., (© 2015 The Authors. Journal of Animal Ecology published by John Wiley & Sons Ltd on behalf of the British Ecological Society.)

Parasitic infection has a direct physiological cost to hosts but may also alter how hosts interact with other individuals in their environment. Such indirect effects may alter both host fitness and the fitness of other individuals in the host's social network, yet the relative impact of direct and indirect effects of infection are rarely quantified. During reproduction, a host's social environment includes family members who may be in conflict over resource allocation. In such situations, infection may alter how resources are allocated, thereby redistributing the costs of parasitism between individuals. Here, we experimentally reduce parasite burdens of parent and/or nestling European shags (Phalacrocorax aristotelis) infected with Contracaecum nematodes in a factorial design, then simultaneously measure the impact of an individual's infection on all family members. We found no direct effect of infection on parent or offspring traits but indirect effects were detected in all group members, with both immediate effects (mass change and survival) and longer-term effects (timing of parents' subsequent breeding). Our results show that parasite infection can have a major impact on individuals other than the host, suggesting that the effect of parasites on population processes may be greater than previously thought., (© 2015 The Author(s) Published by the Royal Society. All rights reserved.)

Objectives: Gastrointestinal (GI) biopsy specimens were previously limited to four per cassette to facilitate established internal technical work practices and histotechnology best practice guidelines. We evaluated the workflow of these biopsy specimens., Methods: We implemented three specific changes: (1) up to 10 GI biopsy specimens could be placed in each cassette, (2) histotechnologists would no longer orient GI biopsy specimens, and (3) embedding would be in a straight line rather than diagonal. We evaluated the effects of these changes on total block numbers, quality of slides, and perceptions of staff., Results: The mean number of cassettes used was reduced 17% for GI biopsy cases, or an overall decrease of 3% of total blocks processed by our histopathology laboratory. Slide quality was unchanged. Staff reported increased job satisfaction., Conclusions: This simple, low-cost, low-effort process change yielded immediate and significant time savings for grossing and histology staff, increased job satisfaction, and challenges conventional histotechnology teaching., (Copyright© by the American Society for Clinical Pathology.)

Age-related variation in demographic rates is now widely documented in wild vertebrate systems, and has significant consequences for population and evolutionary dynamics. However, the mechanisms underpinning such variation, particularly in later life, are less well understood. Foraging efficiency is a key determinant of fitness, with implications for individual life history trade-offs. A variety of faculties known to decline in old age, such as muscular function and visual acuity, are likely to influence foraging performance. We examine age-related variation in the foraging behaviour of a long-lived, wide-ranging oceanic seabird, the wandering albatross Diomedea exulans. Using miniaturised tracking technologies, we compared foraging trip characteristics of birds breeding at Bird Island, South Georgia. Based on movement and immersion data collected during the incubation phase of a single breeding season, and from extensive tracking data collected in previous years from different stages of the breeding cycle, we found limited evidence for age-related variation in commonly reported trip parameters, and failed to detect signs of senescent decline. Our results contrast with the limited number of past studies that have examined foraging behaviour in later life, since these have documented changes in performance consistent with senescence. This highlights the importance of studies across different wild animal populations to gain a broader perspective on the processes driving variation in ageing rates.

Parasites play key ecological and evolutionary roles through the costs they impose on their host. In wild populations, the effect of parasitism is likely to vary considerably with environmental conditions, which may affect the availability of resources to hosts for defense. However, the interaction between parasitism and prevailing conditions is rarely quantified. In addition to environmental variation acting on hosts, individuals are likely to vary in their response to parasitism, and the combined effect of both may increase heterogeneity in host responses. Offspring hierarchies, established by parents in response to uncertain rearing conditions, may be an important source of variation between individuals. Here, we use experimental antiparasite treatment across 5 years of variable conditions to test how annual population productivity (a proxy for environmental conditions) and parasitism interact to affect growth and survival of different brood members in juvenile European shags (Phalacrocorax aristotelis). In control broods, last-hatched chicks had more plastic growth rates, growing faster in more productive years. Older siblings grew at a similar rate in all years. Treatment removed the effect of environment on last-hatched chicks, such that all siblings in treated broods grew at a similar rate across environmental conditions. There were no differences in nematode burden between years or siblings, suggesting that variation in responses arose from intrinsic differences between chicks. Whole-brood growth rate was not affected by treatment, indicating that within-brood differences were driven by a change in resource allocation between siblings rather than a change in overall parental provisioning. We show that gastrointestinal parasites can be a key component of offspring's developmental environment. Our results also demonstrate the value of considering prevailing conditions for our understanding of parasite effects on host life-history traits. Establishing how environmental conditions shape responses to parasitism is important as environmental variability is predicted to increase.

This research article on youth smoking in disadvantaged communities is the product of a qualitative study to understand the issues faced by young smokers--and those trying not to be smokers--in such communities. Environmental factors and peer influence are widely recognised influences on adolescents' take-up and continuation of smoking but less is known about whether, what, how and why circumstances in disadvantaged communities affect young people's pathways towards and away from smoking. Focusing on a youth club in a disadvantaged neighbourhood in the North East of England, narratives about young people's relationships with tobacco provide an ethnographically rich, thick description of the experiences of a group that is too often easily ignored. We argue that young people are caught between competing domains that together exert a form of structural violence. These are, first, the economic and political structures that have overseen de-industrialisation; second, the media structures that create desire for what they cannot afford; third the structures of international organised crime that conspire to provide them with the means to consume from which 'legitimate' structures effectively exclude them. Rather than expecting young people to comply with the health imperative, interventions need to bridge issues of agency and critical consciousness, which structural violence otherwise insidiously erodes., (© 2013 The Authors. Sociology of Health & Illness © 2013 Foundation for the Sociology of Health & Illness/John Wiley & Sons Ltd.)

Limited data exist in regard to productivity and staffing in the anatomic pathology laboratory. In 2004, the National Society for Histotechnology (NSH) conducted a pilot study to examine productivity and staffing in the histology laboratory. After review of the data, The College of American Pathologists (CAP)/NSH Histotechnology Committee concluded that a larger survey was required to further address and expand on the pilot study findings. In 2007, a total of 2674 surveys were sent out to North American laboratories. From the responses, comparisons of laboratory demographics and productivity were examined by institution type and workload volume. Productivity was measured as the number of paraffin-embedded tissue blocks processed per full-time equivalent per year. This manuscript presents and discusses the data collected from the CAP/NSH Workload Study.

Patient care improves with shared decision making, a new healthcare model used by health systems across the country. Identified as a national priority for healthcare transformation, the shared-decision-making model requires providers to engage patients in their healthcare.

Background: Patients are surviving longer with cancer due to early detection and improvements in treatment. With longer survival, quality of life becomes very important. While improvements in treatment add years to the life of patients diagnosed with cancer, rehabilitation can add life to those years., Objective: This article highlights the role rehabilitation can play in enhancing the quality of life for patients living with cancer., Discussion: There are an increasing number of cancer survivors, creating the imperative to look beyond just survival. Potentially remediable problems may include pain, deconditioning and functional impairments. Patients with cancers of the breast, head and neck, musculoskeletal, central nervous system and peripheral nervous system, prostate, and metastatic cancer of the spine may particularly benefit from rehabilitation. Active engagement of oncologists, palliative medicine, general practitioners and rehabilitation specialists can be useful to assist in the rehabilitation needs of patients. In appropriate situations, patients with cancer should be offered rehabilitation services if they are likely to benefit.

Altruism and selfishness are fundamental characteristics of human and animal societies. Among colonial biparental species, breeding outcome depends on interactions between mates and neighbours. However, the relationships between cooperation within and among partnerships and fitness have not been fully investigated. We show that in the highly colonial common guillemot (Uria aalge), altruistic behaviour (allopreening) towards a mate was positively related to long-term fitness, whereas allopreening a neighbour was related to current fitness. Turnover is much lower within than between pairs, so our results suggest that allopreening within pairs generates fitness returns at longer timescales than between pairs. Allopreening not only removes ectoparasites and maintains plumage condition, but may also have important social functions. We found a negative relationship between fight rate and allopreen rate between breeding neighbours, with nests exhibiting low breeding success having a higher frequency of fights with neighbours. We also found evidence for reciprocity in allopreening. Thus, allopreening may function as a reciprocal stress reducer, to decrease the likelihood of fights and associated breeding failure. We suggest that altruistic behaviour has long-term benefits for the survival of the offspring when living in a crowded neighbourhood.

1. In many animal populations a small proportion of individuals produce the majority of surviving offspring, but the underlying mechanisms are unclear. Behaviour may be an important determinant of variation in fitness: 'high-quality' individuals may have enhanced abilities in foraging or predator and parasite avoidance. 2. The role of behaviour in determining variation in quality was examined using the common guillemot Uria aalge, a monogamous seabird with biparental care. Using a novel mixed model approach, we analysed binary data on breeding success of each pair attempting to breed in each year with variables critical to breeding success (timing of breeding; inferred age; breeding experience and success; number of nest sites and partners) as fixed effects. Random effects for year, male, female and each distinct pairing of a male and a female were included in the model, allowing a quality estimate to be derived for each individual and pair. A range of behaviours associated with breeding were examined in relation to these quality estimates. 3. Breeding success declined with timing of breeding, and increased initially with age before declining in old age. It increased with previous successful experience, not breeding experience per se, until senescence effects became apparent. For males, breeding success declined with increasing numbers of mates. 4. The most important behavioural determinants of quality operated at the level of the pair, with the time mates spent together at the site and chick feeding rates both positively related to quality. At the individual level, trip durations and feeding rates were associated with female but not male quality, suggesting that pair quality was operating principally through the female. However, removal of laying date, the most important component in the binomial model, confirmed that the pair effect was much larger than the female effect. 5. This study demonstrates the potential of mixed modelling to determine quality estimates based on long-term breeding histories. The probability of a successful reproductive attempt was explained by the timing of breeding, age, successful breeding experience and number of mates. Behaviour was an important proximate mechanism underlying quality, in particular the foraging abilities of the pair, and the female's contribution to offspring provisioning. In species with biparental care, behavioural correlates of quality operate most strongly at the scale of the breeding pair, because contributions from both individuals are required for a successful outcome.

Changes in animal population size are driven by the interactions between intrinsic processes and extrinsic forces, and identifying the proximate mechanisms behind population change remains a fundamental question in ecology. Here we report on how measuring behavioural and state proxies of food availability among populations experiencing different growth rates can be used to rapidly identify proximate drivers of population trends. In recent decades, the Cape gannet Morus capensis has shown a major distributional shift with historically large colonies in Namibia decreasing rapidly, whilst numbers at South African colonies have increased, suggesting contrasting environmental conditions in the two regions. We compared per capita growth rates of five of the six extant colonies with foraging range (using miniaturised Global Positioning System loggers), foraging work rate, food delivery rates and body condition of breeding adults. We found significant associations between the rate of population change, individual behaviour, energetic gain and body condition that indicate that recent population changes are associated with extrinsic effects. This study shows that behavioural and state data can be used to identify important drivers of population change, and their cost-effectiveness ensures that they are an appealing option for measuring the health of animal populations in numerous situations.

Objectives: To explore patient and health care professional (HCP) views towards the use of multi-agent computer systems in their GP practice., Design: Qualitative analysis of in-depth interviews and analysis of transcriptions., Setting: Urban health centre in Dundee, Scotland., Participants: Five representative healthcare professionals and 11 patients., Main Outcome Measures: Emergent themes from interviews revealed participants' attitudes and beliefs, which were coded and indexed., Results: Patients and HCPs had similar beliefs, attitudes and views towards the implementation of multi-agent systems (MAS). Both felt modern communication methods were useful to supplement, not supplant, face-to-face consultations between doctors and patients. This was based on the immense trust these patients placed in their doctors in this practice, which extended to trust in their choice of communication technology and security. Rapid access to medical information increased patients' sense of shared partnership and self-efficacy. Patients and HCPs expressed respect for each other's time and were keen to embrace technology that made interactions more efficient, including for the altruistic benefit of others less technically competent., Conclusions: Patients and HCPs welcomed the introduction of agent technology to the delivery of health care. Widespread use will depend more on the trust patients place in their own GP than on technological issues.

Evidence for genomic regions influencing systolic and diastolic blood pressure (BP) were assessed in a whole genome linkage analysis in 211 African American and 160 white families as part of the GenNet network of the National Heart, Lung and Blood Institute-sponsored Family Blood Pressure Program. Multipoint regression and variance components linkage methods were used to analyze 372 polymorphic markers. Statistically compelling evidence for linkage (P values .0057 and .00023, respectively) was found on chromosome 1. Our results support the idea that BP regulation is most likely governed by multiple genetic loci, each with a relatively weak effect on BP in the population at large., (Copyright 2003 American Journal of Hypertension, Ltd.)

Reported are issues impacting upon the Quality of Life (QoL) of 59 palliative care clients within a district nursing service. These issues reinforce the emerging conceptualisation of QoL as being subjective and multidimensional. The issues were identified during a trial of two QoL assessment and measurement tools, the Client Generated Index (CGI) and the McGill Quality of Life (MQOL). In this era of considerable concern about QoL for the terminally ill, the article's intent is to present the QoL issues identfied, the grades of impact and priority for improvement of the issues according to the clients, and to discuss these aspects. This information can inform the assessment of palliative care clients (the CGI tool was found ideal for such an assessment), and may also inform further research on the QoL of palliative care clients.