181 research outputs found
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Free healthy breakfasts in primary schools: A cluster randomised controlled trial of a policy intervention in Wales, UK
Objective: The present study evaluated the impact of a national school programme of universal free healthy breakfast provision in Wales, UK.
Design: A cluster randomised controlled trial with repeated cross-sectional design and a 12-month follow-up. Primary outcomes were breakfast skipping, breakfast diet and episodic memory. Secondary outcomes were frequency of eating breakfast at home and at school, breakfast attitudes, rest-of-day diet and class behaviour.
Setting: Primary schools in nine local education authority areas.
Subjects: A total of 4350 students (aged 9–11 years) at baseline and 4472 at follow-up in 111 schools.
Results: Students in intervention schools reported significantly higher numbers of healthy food items consumed at breakfast and more positive attitudes towards breakfast eating at 12 months. Parents in intervention schools reported significantly higher rates of consumption of breakfast at school and correspondingly lower rates of breakfast consumption at home. No other significant differences were found.
Conclusions: The intervention did not reduce breakfast skipping; rather, pupils substituted breakfast at home for breakfast at school. However, there were improvements in children’s nutritional intake at breakfast time, if not the rest of the day, and more positive attitudes to breakfast, which may have implications for life-course dietary behaviours. There was no impact on episodic memory or classroom behaviour, which may require targeting breakfast skippers
An integrated software system for geometric correction of LANDSAT MSS imagery
A system for geometrically correcting LANDSAT MSS imagery includes all phases of processing, from receiving a raw computer compatible tape (CCT) to the generation of a corrected CCT (or UTM mosaic). The system comprises modules for: (1) control of the processing flow; (2) calculation of satellite ephemeris and attitude parameters, (3) generation of uncorrected files from raw CCT data; (4) creation, management and maintenance of a ground control point library; (5) determination of the image correction equations, using attitude and ephemeris parameters and existing ground control points; (6) generation of corrected LANDSAT file, using the equations determined beforehand; (7) union of LANDSAT scenes to produce and UTM mosaic; and (8) generation of output tape, in super-structure format
Scanning Quantum Decoherence Microscopy
The use of qubits as sensitive magnetometers has been studied theoretically
and recent demonstrated experimentally. In this paper we propose a
generalisation of this concept, where a scanning two-state quantum system is
used to probe the subtle effects of decoherence (as well as its surrounding
electromagnetic environment). Mapping both the Hamiltonian and decoherence
properties of a qubit simultaneously, provides a unique image of the magnetic
(or electric) field properties at the nanoscale. The resulting images are
sensitive to the temporal as well as spatial variation in the fields created by
the sample. As an example we theoretically study two applications of this
technology; one from condensed matter physics, the other biophysics. The
individual components required to realise the simplest version of this device
(characterisation and measurement of qubits, nanoscale positioning) have
already been demonstrated experimentally.Comment: 11 pages, 5 low quality (but arXiv friendly) image
Resource Utilization Due to Breakthrough Pain in Patients With Chronic Painful Conditions
Objectives Primary: To capture healthcare resource consumption and work loss in a population of patients with chronic pain who have pain flares from one or more non-cancer conditions.
Secondary: To explore the relationship between anxiety, depression, and pain in this population
Perception of Breakthrough Pain in Patients with Chronic Painful Conditions
Objective: To understand how patients with chronic non-cancer pain define and describe pain flares
Barriers and Facilitators to Testing, Treatment Entry, and Engagement in Care by HIV-Positive Women of Color
Women of color (WOC) are at increased risk of dying from HIV/AIDS, a disparity that may be partially explained by the care barriers they face. Based in a health care disparity model and the socio-ecological framework, the objective of this study was to identify the barriers and facilitators to HIV care at three points along the HIV continuum: HIV testing, entry/early care, and engagement. Two focus groups (n=11 women) and 19 semi-structured interviews were conducted with HIV-positive WOC in an academic medical setting in North Carolina. Content was analyzed and interpreted. We found barriers and facilitators to be present at multiple levels of the ecological framework, including personal-, provider-, clinic-, and community-levels. The barriers reported by women were aligned with the racial health care disparity model constructs and varied by stage of HIV. Identifying the salient barriers and facilitators at multiple ecological levels along the HIV care continuum may inform intervention development
'He said he was going to kill me'
This article uses a case study design to explore attempted intimate femicide in metropolitan São Paulo, Brazil. We conducted 30 in-depth interviews with adult women on community and personal relationship experiences, health-care services, and national legislation about violence against women. Through a thorough transcript review, we identified two participants, Maria* and Raquel*, whose intimate partners attempted to kill them. We used a modified grounded theory approach to code the entire sample, and further analysed these transcripts to identify missed opportunities for intervention in both the prevention of- and responses to intimate partner violence (IPV), and the antecedents of attempted intimate femicide.
Both women had normalized experiences of violence, and experienced psychological abuse prior to the attempted intimate femicide. Social and familial networks were sources of shame for Raquel and support for Maria. Neither woman expressed confidence in law enforcement’s ability to protect women and girls from IPV.
These cases illustrate the need for multi-tiered interventions to prevent femicide in Brazil, which boasts one of the highest global female homicide rates. Although anti-femicide laws exist, better mechanisms are needed to integrate health, legal and social services for IPV and femicide prevention. In addition, community- and interpersonal- level interventions that counteract the Brazilian ‘culture of violence’ and machismo may provide support for at-risk women and girls.
*pseudonyms have been used to protect the identity of the participant
Renormalized Path Integral for the Two-Dimensional Delta-Function Interaction
A path-integral approach for delta-function potentials is presented.
Particular attention is paid to the two-dimensional case, which illustrates the
realization of a quantum anomaly for a scale invariant problem in quantum
mechanics. Our treatment is based on an infinite summation of perturbation
theory that captures the nonperturbative nature of the delta-function bound
state. The well-known singular character of the two-dimensional delta-function
potential is dealt with by considering the renormalized path integral resulting
from a variety of schemes: dimensional, momentum-cutoff, and real-space
regularization. Moreover, compatibility of the bound-state and scattering
sectors is shown.Comment: 26 pages. The paper was significantly expanded and numerous equations
were added for the sake of clarity; the main results and conclusions are
unchange
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