Isotopic Production Cross Sections in Proton-Nucleus Collisions at 200 MeV

Intermediate mass fragments (IMF) from the interaction of $^{27}$Al, $^{59}$Co and $^{197}$Au with 200 MeV protons were measured in an angular range from 20 degree to 120 degree in the laboratory system. The fragments, ranging from isotopes of helium up to isotopes of carbon, were isotopically resolved. Double differential cross sections, energy differential cross sections and total cross sections were extracted.Comment: accepted by Phys. Rev.

Investigation of the performance of an optimised MicroCAT, a GEM and their combination by simulations and current measurements

A MicroCAT (Micro Compteur A Trous) structure which is used for avalanche charge multiplication in gas filled radiation detectors has been optimised with respect to maximum electron transparency and minimum ion feedback. We report on the charge transfer behaviour and the achievable gas gain of this device. A three-dimensional electron and ion transfer simulation is compared to results derived from electric current measurements. Similarly, we present studies of the charge transfer behaviour of a GEM (Gas Electron Multiplier) by current measurements and simulations. Finally, we investigate the combination of the MicroCAT and the GEM by measurements with respect to the performance at different voltage settings, gas mixtures and gas pressures.Comment: 26 pages, 32 figure

Timelike surfaces in Lorentz covariant loop gravity and spin foam models

We construct a canonical formulation of general relativity for the case of a timelike foliation of spacetime. The formulation possesses explicit covariance with respect to Lorentz transformations in the tangent space. Applying the loop approach to quantize the theory we derive the spectrum of the area operator of a two-dimensional surface. Its different branches are naturally associated to spacelike and timelike surfaces. The results are compared with the predictions of Lorentzian spin foam models. A restriction of the representations labeling spin networks leads to perfect agreement between the states as well as the area spectra in the two approaches.Comment: a wrong sign corrected in equation (65

Randomised controlled trial of a home-based physical activity intervention in breast cancer survivors

Background: To improve adherence to physical activity (PA), behavioural support in the form of behavioural change counselling may be necessary. However, limited evidence of the effectiveness of home-based PA combined with counselling in breast cancer patients exists. The aim of this current randomised controlled trial with a parallel group design was to evaluate the effectiveness of a home-based PA intervention on PA levels, anthropometric measures, health-related quality of life (HRQoL), and blood biomarkers in breast cancer survivors. Methods: Eighty post-adjuvant therapy invasive breast cancer patients (age = 53.6 ± 9.4 years; height = 161.2 ± 6.8 cm; mass = 68.7 ± 10.5 kg) were randomly allocated to a 6-month home-based PA intervention or usual care. The intervention group received face-to-face and telephone PA counselling aimed at encouraging the achievement of current recommended PA guidelines. All patients were evaluated for our primary outcome, PA (International PA Questionnaire) and secondary outcomes, mass, BMI, body fat %, HRQoL (Functional assessment of Cancer Therapy-Breast), insulin resistance, triglycerides (TG) and total (TC), high-density lipoprotein (HDL-C) and low-density lipoprotein (LDL-C) cholesterol were assessed at baseline and at 6-months. Results: On the basis of linear mixed-model analyses adjusted for baseline values performed on 40 patients in each group, total, leisure and vigorous PA significantly increased from baseline to post-intervention in the intervention compared to usual care (between-group differences, 578.5 MET-min∙wk−1, p = .024, 382.2 MET-min∙wk−1, p = .010, and 264.1 MET-min∙wk−1, p = .007, respectively). Both body mass and BMI decreased significantly in the intervention compared to usual care (between-group differences, −1.6 kg, p = .040, and −.6 kg/m2, p = .020, respectively). Of the HRQoL variables, FACT-Breast, Trial Outcome Index, functional wellbeing, and breast cancer subscale improved significantly in the PA group compared to the usual care group (between-group differences, 5.1, p= .024; 5.6, p = .001; 1.9 p = .025; and 2.8, p=.007, respectively). Finally, TC and LDL-C was significantly reduced in the PA group compared to the usual care group (between-group differences, −.38 mmol∙L−1, p=.001; and −.3 mmol∙L−1, p=.023, respectively). Conclusions: We found that home-based PA resulted in significant albeit small to moderate improvements in selfreported PA, mass, BMI, breast cancer specific HRQoL, and TC and LDL-C compared with usual care

Clergy Perceptions of Denominational, Doctrine and Seminary School Support for Health and Wellness in Churches

Background: Churches are a viable community partner for reaching large populations for health promotion interventions. Despite their usefulness, little is known about the institutional capacity or beliefs of churches toward health. The purpose of this qualitative study was to examine how a churches’ doctrine, parent organization (e.g. conference/diocese), and leader training (e.g. seminary school) perceive and support health-related issues. Design & Methods: Clergy (n=24) from multiple denominations participated in a semi-structured interview. The interviewer asked questions about the doctrine/philosophy of their church on health, parent organization support for health, and education and training on health. Interviews were recorded, transcribed and coded. Results: Clergy reported that stewardship and holistic views on health were a part of their churches’ doctrine. Health insurance programs and clergy wellness initiatives were the most common form of health-related support from parent organizations. The majority of clergy reported minimal or no instruction on health during their education/training, and desired instruction on self-care in seminary school. These results indicate there are a number of institutional influences on health and wellness within churches. Conclusions: Future programs could include policy and environment level initiatives to address clergy health, and the development of culturally tailored intervention concurrent with church doctrine

Church Leaders’ Health Behaviors and Program Implementation in the Faith, Activity, and Nutrition Program in the United States

Objectives Church leaders are important to the success of faith-based health promotion interventions through the role modeling of health behaviors. However, clergy may be at a higher risk of chronic disease than their congregants and their health is understudied. This study examined church leaders’ health-related behaviors, differences in health behaviors by socio-demographic characteristics, and associations between health behaviors and church-level implementation of an ecological intervention. Methods Pastors (n=93) and church coordinators (n=92) reported body mass index (BMI), self-rated health, fruit and vegetable consumption (F&V), and physical activity (PA) at baseline and 12 months post-training in the intervention. Church coordinators reported program implementation for their church. Socio-demographic differences and associations between changes in health behaviors and program implementation were tested with regression models. Changes in health-related variables were examined using paired t-tests and McNemar’s test. Results Pastors (40.9% women, 41.9% Black/African American) had a mean BMI of 30.0 kg/m2; 23.7% met F&V guidelines and 45.2% met PA guidelines. Black/African American pastors were less likely to meet F&V guidelines and had lower self-rated health than their counterparts. Pastor PA improved over time, but pastor health behaviors were not associated with program implementation. Church coordinators’ (94.6% women, 39.1% Black/African American) mean BMI was 27.8 kg/m2; 27.2% met F&V guidelines and 62.0% met PA guidelines. Black/African American church coordinators had higher BMIs and lower self-rated health than their counterparts. Church coordinator F&V intake improved over time; self-rated health was positively associated with PA program implementation. Conclusions This study underscores the need for preventive interventions for church leaders