Soil surface temperatures reveal moderation of the urban heat island effect by trees and shrubs

Urban areas are major contributors to air pollution and climate change, causing impacts on human health that are amplified by the microclimatological effects of buildings and grey infrastructure through the urban heat island (UHI) effect. Urban greenspaces may be important in reducing surface temperature extremes, but their effects have not been investigated at a city-wide scale. Across a midsized UK city we buried temperature loggers at the surface of greenspace soils at 100 sites, stratified by proximity to city centre, vegetation cover and land-use. Mean daily soil surface temperature over 11 months increased by 0.6 °C over the 5 km from the city outskirts to the centre. Trees and shrubs in non-domestic greenspace reduced mean maximum daily soil surface temperatures in the summer by 5.7 °C compared to herbaceous vegetation, but tended to maintain slightly higher temperatures in winter. Trees in domestic gardens, which tend to be smaller, were less effective at reducing summer soil surface temperatures. Our findings reveal that the UHI effects soil temperatures at a city-wide scale, and that in their moderating urban soil surface temperature extremes, trees and shrubs may help to reduce the adverse impacts of urbanization on microclimate, soil processes and human health

Planned Cesarean or planned vaginal delivery for twins: secondary analysis of randomized controlled trial

Objective: To evaluate whether there is a differential benefit of planned Cesarean delivery (CD) over planned vaginal delivery (VD) in women with a twin pregnancy and the first twin in cephalic presentation, depending on prespecified baseline maternal and pregnancy characteristics, and/or gestational age (GA) at delivery. Methods: This was a secondary analysis of the Twin Birth Study, which included 2804 women with a twin pregnancy and the first twin (Twin A) in cephalic presentation between 32 + 0 and 38 + 6 weeks\u27 gestation at 106 centers in 25 countries. Women were assigned randomly to either planned CD or planned VD. The main outcome measure was composite adverse perinatal outcome, defined as the occurrence of perinatal mortality or serious neonatal morbidity in at least one twin. The baseline maternal and pregnancy characteristics (markers) considered were maternal age, parity, history of CD, use of antenatal corticosteroids, estimated fetal weight (EFW) of Twin A, EFW of Twin B, \u3e 25% difference in EFW between the twins, presentation of Twin B, chorionicity on ultrasound, method of conception, complications of pregnancy, ruptured membranes at randomization and GA at randomization. Separate logistic regression models were developed for each marker in order to model composite adverse perinatal outcome as a function of the specific marker, planned delivery mode and the interaction between these two terms. In addition, multivariable logistic regression analysis with backward variable elimination was performed separately in each arm of the trial. The association between planned mode of delivery and composite adverse perinatal outcome, according to GA at delivery, was assessed using logistic regression analysis. Results: Of the 2804 women initially randomized, 1391 were included in each study arm. None of the studied baseline markers was associated with a differential benefit of planned CD over planned VD in the rate of composite adverse perinatal outcome. GA at delivery was associated differentially with composite adverse perinatal outcome in the treatment arms (P for interaction \u3c 0.001). Among pregnancies delivered at 32 + 0 to 36 + 6 weeks, there was a trend towards a lower rate of composite adverse perinatal outcome in those in the planned-VD group compared with those in planned-CD group (29 (2.2%) vs 48 (3.6%) cases; odds ratio (OR) 0.62 (95% CI, 0.37–1.03)). In pregnancies delivered at or after 37 + 0 weeks, planned VD was associated with a significantly higher rate of composite adverse perinatal outcome, as compared with planned CD (23 (1.5%) vs 10 (0.7%) cases; OR, 2.25 (95% CI, 1.06–4.77)). Conclusion: The perinatal outcome of twin pregnancies with the first twin in cephalic presentation may differ depending on GA at delivery and planned mode of delivery. At 32–37 weeks, planned VD seems to be favorable, while, from around 37 weeks onwards, planned CD might be safer. The absolute risks of adverse perinatal outcomes at term are low and must be weighed against the increased maternal risks associated with planned CD. © 2019 The Authors. Ultrasound in Obstetrics & Gynecology published by John Wiley & Sons Ltd on behalf of International Society of Ultrasound in Obstetrics and Gynecology

From sustainable to systemic development: an inquiry into transformations in discourse and praxis

This paper, through a systemic inquiry, explores the context of, and makes the case for systemic development rather than sustainable development. Systemic development is a form of praxis and thus a process rather than an end state. The move from sustainable to systemic development contains conceptual and practical transformations involving discourse (based on changes in understanding) and praxis. In our systemic inquiry we start by analyzing some of the contributions from the 2006 ANZSYS conference that elucidate constraints and possibilities for the transformation we seek. As part of this overall transformation, issues of building institutional and relational capital have to be addressed. We present three vignettes based on our own praxis to elucidate what might be done under the rubric of systemic development, and to highlight the sorts of capacities that need to be built

Rich pictures: a companion method for qualitative research in medical education

Context Within the social sciences, researchers increasingly build on visual methods to explore complex phenomena and understand how people experience and give meaning to this complexity. Amongst the variety of visual methods available, rich pictures are beginning to gain traction in health professions education (HPE) research. Approach A rich picture is a pictorial representation of a particular situation, including what happened, who was involved, how people felt, how people acted, how people behaved, and what external pressures they acted upon. Rich pictures expand our perspective; they may highlight connections, illuminate the big picture and reveal unexpected emotions. Although new methods bring excitement to the field, it is our responsibility to also be cautious and insightful about their limitations. Rich pictures are a method in evolution in HPE research, with many unknowns about what is possible and what is optimal. Purpose In the current paper, we aim to map out the background, describe the process and share some reflective insights of using rich pictures as a data collection method

Knowledge, beliefs, and influences associated with complementary and alternative medicine among physiotherapy and counselling students

Objective The objective of this study is to determine whether physiotherapy and counselling students, who represent a future generation of two health professions, have differing views about complementary and alternative medicine (CAM). Methods In order to determine physiotherapy and counselling students' self‐rated knowledge and beliefs about CAM and the factors which influence that understanding, a modified 10‐item CAM Health Belief Questionnaire was administered across all year groups to physiotherapy students and counselling students at two universities in Perth, Western Australia. The self‐rated paper‐based survey measured knowledge of CAM among physiotherapy and counselling students, evaluation of their beliefs regarding the use of CAM, factors that influence their knowledge and beliefs, and their likelihood of recommending CAM to future patients. Results A response rate of 96.8% was achieved, with 387 physiotherapy students and 88 counselling students. Moderately positive beliefs about CAM were confirmed in both groups, with mean scores of 42.8/70 for physiotherapy students and 43.3/70 for counselling students. There were no significant differences between the student groups in overall self‐rated knowledge of CAM. The main factors that influenced the students' responses were personal experience for counselling students and scientific evidence for physiotherapy students. Other factors included university training, attitudes of lecturers, tutors and fellow students, cultural background, and opinions of external practitioners. Counselling students were more likely than physiotherapy students to recommend CAM therapies to their future patients. Conclusion The results from this study demonstrate minimal self‐rated knowledge but moderately positive attitudes towards CAM by both physiotherapy and counselling students