Thermal Decomposition of Synthetic Argentojarosite - Implications for Silver Production in Medieval Times

The thermal decomposition of argentojarosite has been studied by thermogravimetric, spectroscopic and infrared emission techniques. Dehydroxylation occurs in three stages at 228, 383, 463 degrees Celsius with the loss of 2, 3 and 1 hydroxyl units. Loss of sulphate occurs at 548 degrees Celsius and is associated with a loss of oxygen. At 790 degrees Celsius loss of oxygen only leaves metallic silver and hematite. Changes in the structure of argentojarosite are also followed by the infrared emission spectra. The intensity of hydroxyl stretching vibration approaches zero by 400 degrees Celsius confirming the loss of hydroxyl units by this temperature. At this temperature changes in the infrared spectra of the sulphate units occurs. The intensity of the sulphate stretching vibrations approaches zero by 750 degrees Celsius. Thermal decomposition of argentojarosite is important in understanding silver production in ancient and medieval times. This work shows that temperatures of around 750 degrees Celsius are required to produce metallic silver

Motivations for urban front gardening: A quantitative analysis

Private gardens in urban settings offer multiple benefits for the environment and society. In addition to benefits to people’s health and well-being, planting in front gardens in particular can mitigate local flooding and urban heat islands. To encourage more front garden planting, greater understanding of householders’ motivations for front gardening is needed. Addressing research gaps on gardening for reasons other than food production and on motivations for gardening in front gardens, a large-scale online survey (n = 1,000) was conducted with urban/suburban dwellers in England. Exploratory factor analysis identified three factors of motivation: enjoyment, meaning and benefit (intrinsic), creating something beautiful (aesthetic) and functional outcomes (utilitarian). A multiple regression model incorporating the three factors and sociodemographic variables explained 11% of variance of time spent front gardening, with intrinsic motivations the strongest predictor. Intrinsic motivations were stronger for women than for men. The study provides a quantitative categorisation of motivational factors as a basis for comparative research and design of interventions and policy to increase front gardening

The association between frailty and anxiety: A systematic review

OBJECTIVES: Previous systematic reviews show a clear relationship between frailty and depression, however the association with anxiety is much less frequently explored. Previous single studies indicate evidence is mixed. We completed a systematic review and meta-analysis to identify the relationship between frailty and anxiety. METHODS: We searched five electronic databases for observational studies in older people in community, care home and outpatient settings with any/no health conditions that measured the association between anxiety and frailty using validated measures. Studies were screened by one reviewer with 10% checked by a second reviewer. The Mixed Methods Appraisal Tool was used to assess study quality. We used meta-analysis to aggregate study findings, with subgroup analyses to explore heterogeneity. RESULTS: Out of 1272 references, a total of 20 cross-sectional and 1 longitudinal studies were eligible. Older adults with frailty were substantially more likely to display anxiety symptoms than robust populations, across both dichotomous and continuous data sets (n = 10, OR = 3.48, 95% CI: 2.08, 5.81, p < 0.0001, I2  = 94%; N = 5, SMD = 3.13, 95% CI: 1.06, 5.21, I2  = 98%). Similarly, pre-frail older adults were more likely to have anxiety symptoms than robust older adults but to a lesser extent (N = 6, OR = 1.95, 95% CI: 1.41, 2.71, I2  = 63%; N = 3, SMD = 1.70, 95% CI: 0.01, 3.38, I2  = 98%). CONCLUSIONS: There is a clear association between pre-frailty/frailty and anxiety in older adults. However, data are heterogeneous and primarily from cross-sectional studies so causality cannot be determined. Future research should evaluate the effectiveness of anxiety screening and treatments in frail older adults

Experience of depression in older adults with and without a physical long-term condition: findings from a qualitative interview study

OBJECTIVE: To understand how the lived experience of depression differs among patients with a long-term condition (LTC) compared with those without an LTC, and how the experience differs across different types of LTC. DESIGN: Face-to-face, semistructured interviews. SETTING: Primary care; General Practitioner (GP) surgeries in and around North London. PARTICIPANTS: 41 primary care patients with depression were recruited. Our sample comprised participants aged 55–75 years with depression only (n=12), depression and coronary heart disease (n=5), depression and type 2 diabetes (n=10) and depression and arthritis (n=14). RESULTS: Interviews were conducted, audio recorded, transcribed and analysed using thematic analysis. The results revealed that the cardinal diagnostic symptoms of depression (anhedonia, sadness) were experienced by all our participants regardless of LTC. However, the LTC did interact with depression by compounding somatic, cognitive and emotional symptoms, increasing disability and reducing independence, and hindering attempts at coping with mental illness. Our findings demonstrate common experiences across patients as well as key differences based on LTC. CONCLUSIONS: We suggest four key implications for future care practices of these patients: (1) not all participants with depression and LTC view their mental and physical health as interconnected; there should be allowances in care plans for separate treatment pathways; (2) key features of depression that affect LTC management are social withdrawal and lack of motivation to self-manage or access healthcare; (3) key features of LTCs that worsen depression are pain, the unpredictability of future health and progressive disability; (4) positive self-management of LTC could improve self-efficacy and therefore mood, and should be encouraged

“It Makes You Feel Alive and Younger…but It’s Stressful …My Back and Legs Ache”: A Focus Group Study Encouraging Resistance Training Around Retirement

Muscle weakness is a key component of age-related conditions such as sarcopenia and frailty. Resistance training is highly effective at preventing and treating muscle weakness; however, few adults meet recommended levels. Retirement may be a key life-stage to promote resistance training. We carried out a virtual focus group study to explore motivators and barriers to resistance training around the time of retirement, with the aim of determining strategies and messages to increase its uptake. The five focus groups (n = 30) were recorded, transcribed and thematically analysed. We found that resistance training was positively viewed when associated with immediate and long-term health and wellbeing benefits and had a social dimension; but there was a lack of understanding as to what constitutes resistance training, the required intensity level for effects; the role of pain; and the consequences of muscle weakness

Health inequalities for older people from minority ethnic groups receiving palliative care and end of life care: a scoping review protocol

OBJECTIVE: The proposed scoping review aims to explore international literature on how older people from minority ethnic groups engage with and utilise palliative and end of life care, investigate the barriers and facilitators, and compare how this varies between ethnicities and health conditions. INTRODUCTION: Minority ethnic groups make up substantial parts of the populations of many countries around the world. Research has found that there are disparities in access to palliative care and end of life care among minority ethnic groups. Language barriers, cultural values, and socio-demographic factors have been cited as preventing access to quality palliative and end of life care. However, it is unclear how these barriers and inequalities differ across different minority ethnic groups in different countries, and across different health conditions within these groups. INCLUSION CRITERIA: The population will be older people of different minority ethnic groups who are receiving palliative or end of life care, family caregivers, and health and social care professionals. The sources of information will include quantitative, qualitative and mixed methods research, and sources that focus on minority ethnic groups’ interactions with palliative and end of life care. METHODS: A scoping review guided by the Joanna Briggs Institute Manual for Evidence Synthesis. Searches of MEDLINE, Embase, PsycInfo, CINAHL, Scopus, Web of Science, Assia, and the Cochrane Library will be conducted. Citation tracking, reference list checking and grey literature searches will be undertaken. Data will be extracted, charted and summarised descriptively. IMPLICATIONS: This review will highlight the health inequalities present in palliative and end of life care, the research gaps in understudied minority ethnic populations, locations where further study is required, and how barriers and facilitators differ across different ethnic groups and health conditions. The results of this review will be shared with stakeholders and will provide evidence-based recommendations for inclusive palliative and end of life care

Exploiting context for rumour detection in social media

Tools that are able to detect unverified information posted on social media during a news event can help to avoid the spread of rumours that turn out to be false. In this paper we compare a novel approach using Conditional Random Fields that learns from the sequential dynamics of social media posts with the current state-of-the-art rumour detection system, as well as other baselines. In contrast to existing work, our classifier does not need to observe tweets querying the stance of a post to deem it a rumour but, instead, exploits context learned during the event. Our classifier has improved precision and recall over the state-of-the-art classifier that relies on querying tweets, as well as outperforming our best baseline. Moreover, the results provide evidence for the generalisability of our classifier

Clinical Simulations in Academic Courses: Four Case Studies Across the Medical SLP Graduate Curriculum

Simulation practices are growing in both popularity and necessity within speech pathology programs. Simulation use can serve to not only minimize client risk but to increase student confidence and competence prior to patient contact, particularly with low incidence or medically fragile patients. This paper describes and reflects on four individual simulation experiences within one graduate speech language pathology program and their outcomes. The use of both simulated patients and mannequin training resulted in an increase in students\u27 perception of knowledge and confidence in their clinical skills with medical patients

Management of depression and referral of older people to psychological therapies:a systematic review of qualitative studies

BACKGROUND: Depressive symptoms are common in later life and increase both the risk of functional and cognitive decline and the use of healthcare services. Despite older people expressing preferences for talking therapies, they are less likely to be referred than younger adults, particularly when aged ≥80 years. AIM: To explore how healthcare professionals (HCPs) manage older people in relation to depression and referrals to psychological therapies. DESIGN AND SETTING: Systematic review and thematic synthesis of qualitative studies. METHOD: MEDLINE, Embase, PsycINFO, CINAHL, and the Social Sciences Citation Index (inception-March 2018) were searched for studies exploring HCPs' views regarding management of late-life depression across all settings. Studies of older people's views or depression management across all ages were excluded. RESULTS: In total, 27 studies, were included; these predominantly focused on the views of GPs and primary and community care nurses. Many HCPs felt that late-life depression was mainly attributable to social isolation and functional decline, but treatments appropriate for this were limited. Clinicians perceived depression to have associated stigma for older adults, which required time to negotiate. Limited time in consultations and the complexity of needs in later life meant physical health was often prioritised over mental health, particularly in people with frailty. Good management of late-life depression appeared to depend more on the skills and interest of individual GPs and nurses than on any structured approach. CONCLUSION: Mental ill health needs to be a more-prominent concern in the care of older adults, with greater provision of psychological services tailored to later life. This may facilitate future identification and management of depression

"It makes you feel alive and younger…but it's stressful …my back and legs ache": A focus group study encouraging resistance training around retirement.

Muscle weakness is a key component of age-related conditions such as sarcopenia and frailty. Resistance training is highly effective at preventing and treating muscle weakness; however, few adults meet recommended levels. Retirement may be a key life-stage to promote resistance training. We carried out a virtual focus group study to explore motivators and barriers to resistance training around the time of retirement, with the aim of determining strategies and messages to increase its uptake. The five focus groups (n = 30) were recorded, transcribed and thematically analysed. We found that resistance training was positively viewed when associated with immediate and long-term health and wellbeing benefits and had a social dimension; but there was a lack of understanding as to what constitutes resistance training, the required intensity level for effects; the role of pain; and the consequences of muscle weakness