1,970 research outputs found
Functional estrogen receptors of red blood cells. Do they influence intracellular signaling?
Background/Aims: Estrogen could play a key role in the mechanisms underlying sex-related disparity in the incidence of thrombotic events. We investigated whether estrogen receptors (ERs) were expressed in human red blood cells (RBCs), and if they affected cell signaling of erythrocyte constitutive isoform of endothelial NO-synthase (eNOS) and nitric oxide (NO) release. Methods: RBCs from 29 non-smoker volunteers (15 males and 14 females) aged between 20 and 40 years were analyzed by cytometry and western blot. In particular, content and distribution of ER-ι and ER-β, tyrosine kinases and eNOS phosphorylation and NO release were analyzed. Results: We demonstrated that: i) both ER-ι and ER-β were expressed by RBCs; ii) they were both functionally active; and iii) ERs distribution and function were different in males and females. In particular, ERs modulated eNOS phosphorylation and NO release in RBCs from both sexes, but they induced the phosphorylation of specific tyrosine residues of kinases linked to eNOS activation and NO release in the RBCs from females only. Conclusion: Collectively, these data suggest that ERs could play a critical role in RBC intracellular signaling. The possible implication of this signaling in sex-linked risk disparity in human cardiovascular diseases, e.g. in thrombotic events, may not be ruled out
Cultivating equality: delivering just and sustainable food systems in a changing climate
T
oday, the world faces a greater challenge perhaps than ever before:
tackling hunger and malnutrition in the face of climate change
and increasing natural resource scarcity. Civil society, governments,
researchers, donors, and the private sector are simultaneously debating
and collaborating to find solutions. But the dialogue is over-emphasizing
food production.
Improving yields is important, particularly in places where there is not
enough food or where food producers live in poverty. But simply producing
more is not enough to tackle hunger. Furthermore, acknowledging that
lack of food is not the sole cause of hunger is important. Inequality
shapes who has access to food and the resources to grow it and buy it.
It governs who eats first and who eats worst. Inequality determines who
can adapt more readily to a changing climate. Hunger and poverty are
not an accident â they are the result of social and economic injustice and
inequality at all levels, from household to global. The reality of inequality
is no truer for anyone than it is for women â half the worldâs population,
with far less than their fair share of the worldâs resources.
If we are to achieve the new Sustainable Development Goal of ending
hunger by 2030, we must address the underlying inequalities in food
systems. In a changing climate, agriculture and food systems must be
sustainable and productive â but our efforts cannot end there. They
must be profitable for those for whom it is a livelihood; they must be
equitable, to facilitate a level playing field in the market, to secure rights
to resources for food producers, and to ensure access to nutritious food for
all; they must be resilient to build the capacity of populations vulnerable
to economic shocks, political instability, and increasing, climate-induced
natural hazards to recover and still lift themselves out of poverty
A thermodynamically self-consistent theory for the Blume-Capel model
We use a self-consistent Ornstein-Zernike approximation to study the
Blume-Capel ferromagnet on three-dimensional lattices. The correlation
functions and the thermodynamics are obtained from the solution of two coupled
partial differential equations. The theory provides a comprehensive and
accurate description of the phase diagram in all regions, including the wing
boundaries in non-zero magnetic field. In particular, the coordinates of the
tricritical point are in very good agreement with the best estimates from
simulation or series expansion. Numerical and analytical analysis strongly
suggest that the theory predicts a universal Ising-like critical behavior along
the -line and the wing critical lines, and a tricritical behavior
governed by mean-field exponents.Comment: 11 figures. to appear in Physical Review
Sexual orientation and symptoms of common mental disorder or low wellbeing: combined meta-analysis of 12 UK population health surveys
Background Previous studies have indicated increased risk of mental disorder symptoms, suicide and substance misuse in lesbian, gay and bisexual (LGB) adults, compared to heterosexual adults. Our aims were to determine an estimate of the association between sexual orientation identity and poor mental health and wellbeing among adults from 12 population surveys in the UK, and to consider whether effects differed for specific subgroups of the population. Methods Individual data were pooled from the British Cohort Study 2012, Health Survey for England 2011, 2012 and 2013, Scottish Health Survey 2008 to 2013, Longitudinal Study of Young People in England 2009/10 and Understanding Society 2011/12. Individual participant meta-analysis was used to pool estimates from each study, allowing for between-study variation. Results Of 94,818 participants, 1.1 % identified as lesbian/gay, 0.9 % as bisexual, 0.8 % as âotherâ and 97.2 % as heterosexual. Adjusting for a range of covariates, adults who identified as lesbian/gay had higher prevalence of common mental disorder when compared to heterosexuals, but the association was different in different age groups: apparent for those under 35 (ORâ=â1.78, 95 % CI 1.40, 2.26), weaker at age 35â54.9 (ORâ=â1.42, 95 % CI 1.10, 1.84), but strongest at age 55+ (ORâ=â2.06, 95 % CI 1.29, 3.31). These effects were stronger for bisexual adults, similar for those identifying as âotherâ, and similar for 'low wellbeing'. Conclusions In the UK, LGB adults have higher prevalence of poor mental health and low wellbeing when compared to heterosexuals, particularly younger and older LGB adults. Sexual orientation identity should be measured routinely in all health studies and in administrative data in the UK in order to influence national and local policy development and service delivery. These results reiterate the need for local government, NHS providers and public health policy makers to consider how to address inequalities in mental health among these minority groups
Describing interruptions, multi-tasking and task-switching in the community pharmacy: A qualitative study in England
Background: There is growing evidence base around interruptions and distractions in the community pharmacy setting. There is also evidence to suggest these practices may be associated with dispensing errors. Up to date, qualitative research on this subject is limited.
Objective: To explore interruptions and distractions in the community setting; utilising an ethnographic approach to be able to provide a detailed description of the circumstances surrounding such practices.
Setting: Community pharmacies in England, July to October 2011.
Method: An ethnographic approach was taken. Non participant, unstructured observations were utilised to make records of pharmacistsâ every activities. Case studies were formed by combining field notes with detailed information on pharmacists and their respective pharmacy businesses. Content analysis was undertaken both manually and electronically, utilising NVivo 10.
Results: Response rate was 12% (n=11). Over fifteen days, a total of 123 hours and 58 minutes of observations were recorded in 11 separate pharmacies of 11 individual pharmacists. The sample was evenly split by gender (female n=6; male n=5) and pharmacy ownership (independent n=5; multiple n=6). Employment statuses included employee pharmacists (n=6), owners (n=4) and a locum (n=1). Average period of registration as a pharmacist was 19 years (range 5-39 years). Average prescriptions busyness of pharmacies ranged from 2,600 â 24,000 items dispensed per month. Two key themes were: âInterruptions and task-switchingâ and âdistractions and multi-tasking.â All observed pharmacistsâ work was dominated by interruptions, task-switches, distractions and multi-tasking, often to manage a barrage of conflicting demands. These practices were observed to be part of a deep-rooted culture in the community setting. Directional work maps illustrated the extent and direction of task switching employed by pharmacists.
Conclusions: In this study pharmacistsâ working practices were permeated by interruptions and multi-tasking. These practices are inefficient and potentially reduce patient safety in terms of dispensing accuracy
The quality of different types of child care at 10 and 18 months. A comparison between types and factors related to quality.
The quality of care offered in four different types of non-parental child care to 307 infants at 10 months old and 331 infants at 18 months old was compared and factors associated with higher quality were identified. Observed quality was lowest in nurseries at each age point, except that at 18 months they offered more learning activities. There were few differences in the observed quality of care by child-minders, grandparents and nannies, although grandparents had somewhat lower safety and health scores and offered children fewer activities. Cost was largely unrelated to quality of care except in child-minding, where higher cost was associated with higher quality. Observed ratios of children to adults had a significant impact on quality of nursery care; the more infants or toddlers each adult had to care for, the lower the quality of the care she gave them. Mothers' overall satisfaction with their child's care was positively associated with its quality for home-based care but not for nursery settings
Evaluating the impact of post-qualifying social work education.
Post-qualifying awards in social work are well established within the continuing professional development agenda for qualified social workers in the UK. The evaluation of education and training should be an integral part of this agenda because it is important to ensure that programmes continue to meet standards of delivery, are successful in meeting their aims and objectives and are making an impact on practice. However, there is limited amount of published work on the evaluation of post-qualifying social work education, with studies often focusing on programme delivery rather than on their impact on practice.
This paper explores evaluative work within the current post-qualifying social work framework, and discusses the results of an evaluation of the Vulnerable Adults and Community Care Practice programme, a specialist post-qualifying social work education programme run by a UK university, as an example of an evaluation of the impact on practice. The results indicate positive evidence of impact on practice and demonstrate examples of how the programme has had a direct effect on individuals, teams, organisations and on people who use services
âDo you really want me to tell ya!â critical learning in engaging young people in contact with the justice system as peer educators with social work students
This paper outlines and evaluates an active and experiential learning
project, which gave young people involved with the justice
system, a voice as peer educators engaging with social work
students outside of the traditional educational institution. The
project had two key interconnecting elements. Firstly, by engaging
a hidden population of young people in a realistic and meaningful
way, it enabled them to share their experiences, and allowed
students to understand the complexity of what it means to be
socially excluded. Secondly, through this active participation process
the young people began to see education as a desirable goal.
The project took place over three months and included 10 social
work students and 13 young people involved with the justice system.
Creative use of multimedia facilitated production of a learning
resource to capture the young peopleâs lived experiences with statutory
social work and justice systems. Young people were fundamentally
challenged in their beliefs about themselves being involved in
education to achieve a qualification. Students were challenged in
their creativity and versatility responding to the task, when collaborating
with âhard to reachâ young people. They were furthermore
challenged in terms of their attitudes and assumptions in relation
to offending and social justice
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