Social selection is density dependent but makes little contribution to total selection in New Zealand giraffe weevils

Funding D.N.F. was supported by the University of Aberdeen. R.L.G. was supported by a University of Auckland Masters Scholarship during data collection. C.J.P. was supported by a Rutherford Foundation Postdoctoral Fellowship during the writing of this manuscript. Acknowledgements We thank John Staniland and Forest and Bird Wait- akere for continuously supporting our research at Matuku Reserve. Data collection was made possible by many volunteers, especially Jessica Le Grice, Robin Le Grice and Stephen Wallace. Two anonymous reviewers made very constructive comments. We have no competing interests.Peer reviewedPostprin

How to do health services research in stroke: a focus on performance measurement and quality improvement

The objective of this ‘How to’ research series article is to provide guidance on getting started in Health Services Research. The purpose of health services research is to contribute knowledge that can be used to help improve health systems and clinical services through influencing policy and practice. The methods used are broad, have varying levels of rigour and may require different specialist skills. This paper sets out practical steps for undertaking health services research. Importantly, use of the highlighted techniques can identify solutions to address inadequate knowledge translation or promote greater access to evidence-based stroke care to optimise patient outcomes

SELF-ASSEMBLED MONOLAYERS AND METHODS FOR USING THE SAME IN BIOSENSING APPLICATIONS

Cross - linked amphiphile constructs that form self - as sembled monolayers ( SAMs ) on metal surfaces such as gold surfaces are disclosed . These new SAMs generate well packed and highly oriented monolayer films on gold sur faces . A method for using the SAMs in the fabrication of biomolecule sensors is also disclosed

A Survey of Therapeutic Radiographers’ Knowledge, Practices, and Barriers in Delivering Health Behaviour Advice to Cancer Patients

Therapeutic radiographers (TRs) are well-placed to deliver advice to cancer patients; however, limited research exists on their practices in providing advice on healthy lifestyle behaviours. Through an online survey, this study aimed to explore TRs’ current practices, barriers, and facilitators around delivering healthy behaviour advice to cancer patients. An online survey was sent to 72 radiotherapy departments in the UK and 583 TRs responded to the survey. Findings showed that levels of enquiry and provision of advice on healthy behaviours were low, with less than 25% advising patients on physical activity, healthy eating, weight management, smoking cessation, and reducing alcohol intake as standard practice. Lack of knowledge, resources, and training were identified as barriers, in addition to perceived lack of patient interest and lack of time. TRs reported a strong desire to undergo training to enable them to deliver health behaviour advice to patients, with an identified preference for online training. Cancer patients look to healthcare professionals for advice on health behaviours, and TRs are well-placed to deliver this advice. The findings of this study provide insight into the areas that need addressing to enable TRs to support positive health behaviours among cancer patients

Did the COVID-19 pandemic impact the dietary intake of individuals living with and beyond breast, prostate, and colorectal cancer and who were most likely to experience change?

Purpose: The present work investigated dietary changes amongst individuals living with and beyond cancer (LWBC) from before to during the pandemic. To identify those at greatest risk of unhealthy changes, it was further examined whether patterns varied by sociodemographic, health-related, and COVID-19-related characteristics. // Methods: This longitudinal cohort study analysed data from 716 individuals LWBC participating in the Advancing Survivorship Cancer Outcomes Trial (ASCOT). Using data provided before and during the pandemic, changes in fruit and vegetable, snack, and alcohol intake were tested using mixed-effect regression models. // Results: Fruit and vegetable (95%CI: − 0.30; − 0.04) and alcohol consumption (95%CI: − 1.25; − 0.31) decreased, whilst snacking increased (95%CI: 0.19; 0.53). Women and individuals with limited social contact were more likely to reduce fruit and vegetable intake during the pandemic. Women and individuals with poorer sleep quality, limited social contact, and shielding requirements and without higher education were more likely to increase snacking during the pandemic. Individuals with poorer sleep quality, poorer mental health, and regular social contact were more likely to decrease alcohol consumption during the pandemic. // Conclusions: Findings suggest decreased intake for fruit, vegetable, and alcohol consumption and increased snack intake in response to the pandemic amongst individuals LWBC. These changes appear to differ across various characteristics, suggesting the pandemic has not equally impacted everyone in this population. Findings highlight the need for targeted post-COVID strategies to support individuals LWBC most adversely affected by the pandemic, including women and socially isolated individuals. This encourages resources to be prioritised amongst these groups to prevent further negative impact of the pandemic. Whilst the findings are statistically significant, practically they appear less important. This is necessary to acknowledge when considering interventions and next steps

Design and Synthesis of a New Class of Twin-Chain Amphiphiles for Self-Assembled Monolayer-based Electrochemical Biosensor Applications

A new class of twin-chain hydroxyalkylthiols (mercaptoalkanols) featuring a nearly constant cross-section and the potential for modification of one or both termini are available with complete regioselectivity through Pd-mediated couplings of benzene diiododitriflate, including an example of a previously unreported coupling to generate an ortho-substituted arene bis acetic acid. Selfassembled monolayers (SAMs) prepared from the new amphiphiles demonstrate improved stability in an electrochemical sensor system compared with monolayers prepared from analogous single chain thiols

Perception of a need to change weight in individuals living with and beyond breast, prostate and colorectal cancer: a cross-sectional survey

PURPOSE: People living with and beyond cancer (LWBC) are advised to achieve a body mass index (BMI) within the healthy range (≥ 18.5 and < 25). Not perceiving a need for weight change may be a barrier to achieving a healthy weight. This study aimed to explore factors associated with perceived need for weight change among people LWBC. METHODS: Adults diagnosed with breast, prostate, or colorectal cancer were recruited through National Health Service sites in Essex and London. Participants (N = 5835) completed the ‘Health and Lifestyle After Cancer’ survey, which included a question on perceived need to change weight. Associations between perceived need for weight change and BMI, and perceived need for weight change and health and demographic variables, were analyzed using chi-square tests and logistic regression, respectively. RESULTS: The proportion of participants perceiving a need to lose weight differed according to BMI category: healthy weight (23%), overweight (64%), obese (85%) (P < 0.001). Having overweight or obesity but not perceiving a need to lose weight was associated with being older, male, non-white, not married or cohabiting, and having cancer that had spread, no formal qualifications, no comorbidities, and having received chemotherapy. CONCLUSIONS: Perceived need to lose weight is prevalent among people LWBC with obesity and overweight. This group may be interested in weight management support. Demographic and health factors were associated with having obesity or overweight but not perceiving a need to lose weight. IMPLICATIONS FOR CANCER SURVIVORS: Weight loss interventions for people LWBC are needed. A subset of people LWBC with overweight and obesity may need additional information or motivators to engage with weight management

Associations of self-reported and device-assessed physical activity with fatigue, quality of life, and sleep quality in adults living with and beyond cancer

BACKGROUND: Greater physical activity is associated with improved outcomes in people living with and beyond cancer. However, most studies in exercise oncology use self-reported measures of physical activity. Few have explored agreement between self-reported and device-based measures of physical activity in people living with and beyond cancer. This study aimed to describe physical activity in adults affected by cancer across self-reported and device-assessed activity, to explore levels of agreement between these measures in terms of their utility for categorizing participants as meeting/not meeting physical activity guidelines, and to explore whether meeting guidelines is associated with fatigue, quality of life, and sleep quality. METHODS: A total of 1348 adults living with and beyond cancer from the Advancing Survivorship Cancer Outcomes Trial completed a survey assessing fatigue, quality of life, sleep quality, and physical activity. The Godin-Shephard Leisure-Time Physical Activity Questionnaire was used to calculate a Leisure Score Index (LSI) and an estimate of moderate-to-vigorous physical activity (MVPA). Average daily steps and weekly aerobic steps were derived from pedometers worn by participants. RESULTS: The percentage of individuals meeting physical activity guidelines was 44.3% using LSI, 49.5% using MVPA, 10.8% using average daily steps, and 28.5% using weekly aerobic steps. Agreement (Cohen's κ) between self-reported and pedometer measures ranged from 0.13 (LSI vs. average daily steps) to 0.60 (LSI vs. MVPA). After adjusting for sociodemographic and health-related covariates, meeting activity guidelines using all measures was associated with not experiencing severe fatigue (odds ratios (ORs): 1.43-1.97). Meeting guidelines using MVPA was associated with no quality-of-life issues (OR = 1.53). Meeting guidelines using both self-reported measures were associated with good sleep quality (ORs: 1.33-1.40). CONCLUSION: Less than half of all adults affected by cancer are meeting physical activity guidelines, regardless of measure. Meeting guidelines is associated with lower fatigue across all measures. Associations with quality of life and sleep differ depending on measure. Future research should consider the impact of physical activity measure on findings, and where possible, use multiple measures

Physical properties of the photodamaged human skin dermis: Rougher collagen surface and stiffer/harder mechanical properties

Fragmentation of collagen fibrils and aberrant elastic material (solar elastosis) in the dermal extracellular matrix (ECM) is among the most prominent features of photodamaged human skin. These alterations impair the structural integrity and create a dermal microenvironment prone to skin disorders. The objective of this study was to determine the physical properties (surface roughness, stiffness and hardness) of the dermal ECM in photodamaged and subject‐matched sun‐protected human skin. Skin samples were sectioned and analysed by histology, atomic force microscopy and nanoindentation. Dermal ECM collagen fibrils were more disorganized (ie, rougher surface), and the dermal ECM was stiffer and harder, in photodamaged forearm, compared to sun‐protected underarm skin. Cleavage of collagen fibrils in sun‐protected underarm dermis by recombinant human matrix metalloproteinase‐1 resulted in rougher collagen fibril surface and reduced dermal stiffness and hardness. Degradation of elastotic material in photodamaged skin by treatment with purified neutrophil elastase reduced stiffness and hardness, without altering collagen fibril surface roughness. Additionally, expression of two members of the lysyl oxidase gene family, which insert cross‐links that stiffen and harden collagen fibrils, was elevated in photodamaged forearm dermis. These data elucidate the contributions of fragmented collagen fibrils, solar elastosis and elevated collagen cross‐linking to the physical properties of the dermal ECM in photodamaged human skin. This new knowledge extends current understanding of the impact of photodamage on the dermal ECM microenvironment.Peer Reviewedhttps://deepblue.lib.umich.edu/bitstream/2027.42/150500/1/exd13728_am.pdfhttps://deepblue.lib.umich.edu/bitstream/2027.42/150500/2/exd13728.pd

Biopsychosocial Intervention for Stroke Carers (BISC): protocol for a feasibility randomized controlled trial

Introduction Reducing length of hospital stay for stroke survivors often creates a shift in the responsibility of care towards informal carers. Adjustment to the caregiving process is experienced by many carers as overwhelming, complex and demanding, and can have a detrimental impact on mental and physical health and wellbeing. National policy guidelines recommend that carers’ needs are considered and addressed; despite this, few interventions have been developed and empirically evaluated. We developed a biopsychosocial intervention in collaboration with carers of stroke survivors. Our aim is to determine whether the intervention can be delivered in a group setting and evaluated using a randomised controlled trial (RCT). Methods and Analysis Feasibility randomised controlled trial (RCT) and nested qualitative interview study. We aim to recruit up to 40 stroke carers within one year of the stroke onset. Carers are randomised to usual care or usual care plus biopsychosocial intervention. Each intervention group will consist of five stroke carers. The intervention will focus on: psychoeducation, psychological adjustment to stroke, strategies for reducing unwanted negative thoughts and emotions, and problem solving strategies. The main outcome is the feasibility of conducting an RCT. Carer outcomes at six months include: anxiety and depression, quality of life, and carer strain. Data is also collected from stroke survivors at baseline and six months including: level of disability, anxiety and depression, and quality of life. Ethics and Dissemination Favourable ethical opinion was provided by East Midlands – Nottingham2 Research Ethics Committee (14/EMI/1264). This study will determine whether delivery of the biopsychosocial intervention is feasible and acceptable to stroke carers within a group format. It will also determine whether it is feasible to evaluate the effects of the biopsychosocial intervention in an RCT. We will disseminate our findings through peer-reviewed publications and presentations at national and international conferences