Statistics for evidence-based policy in the Church of England : predicting diocesan performance

This study computed the percentage changes recorded on six separate performance indicators between 1991 and 2000 in order to calculate the effect of the Decade of Evangelism on the mainland dioceses of the Church of England. The performance indicators were usual Sunday attendance, Easter Sunday communicants, Christmas communicants, electoral roll membership, total baptism figures, and total confirmation figures. Statistical procedures (including cluster analysis, analysis of variance, canonical correlation analysis, and multiple regression) were then employed in order to identify from the range of variables routinely collected by the central church authorities policy-related factors associated with church growth (or at least reduced decline) over this period. These analyses identified four areas, concerned with expanding non-stipendiary ministry, with encouraging the ordination of women, with resisting church closure, and with promoting a financial policy that includes planned subscriptions and charitable giving. These conclusions are offered as an applied example of using statistics as a tool for mission and as the basis for evidence-based policy

Solar rejection in laser based underwater communication systems

This article provides a numerical study of the expected improvements in an underwater optical system given by a single-mode laser diode operating within a Fraunhofer line in a coastal water type. The system performance is examined for a silicon PIN direct-detection receiver in the euphotic zone. The solar irradiance, modelled as white noise, is evaluated when using a lithium niobate interference and a birefringent filter with different field-of-view (FOV) characteristics in a clear sky situation. The results of this analysis show the inverse dependence of the signal-to-noise (SNR) on the FOV, along with the significant improvement in the receiver sensitivity given by a narrow optical bandpass filter (OBPF)

Laser Based Underwater Communication Systems

We report on recent progress in the field of visible light communications including direct modulation of blue laser devices at data rates beyond 10 Gbit/s, and the transmission of 2.5 Gbit/s OOK data through water. We also discuss the advantages of operating with single mode laser devices and matched filtering at the receiver in the context of applications with significant solar background. The system performance for two types of direct-detection receivers, a PIN detector and less conventional silicon Photomultiplier technology will be presented

Work-related psychological wellbeing : testing the balanced affect model among Anglican clergy

Poor work-related psychological health and professional burnout remain issues of concern among clergy across denominations and across cultures. Maslach’s three-component model of burnout remains the most frequently employed conceptualization and measure in clergy research. Maslach proposes a sequential model of burnout. An alternative approach has been offered by the Francis Burnout Inventory that comprises two components. Francis proposes a balanced affect model of burnout according to which negative affect (emotional exhaustion) is offset by positive affect (satisfaction in ministry). This study draws on data provided by around 658 clergy serving in the Church of England to test this balanced affect model. Employing independent measures of burnout, the data demonstrated the significance of the interaction term between positive affect and negative affect in predicting individual differences in burnout. In other words, as positive affect increases the effects of negative affect decrease

Work-related psychological health among Catholic religious in Italy : testing the balanced affect model

Drawing on the classic model of balanced affect, the Francis Burnout Inventory (FBI) conceptualised good work-related psychological health among religious leaders in terms of negative affect being balanced by positive affect. In the FBI negative affect is assessed by the Scale of Emotional Exhaustion in Ministry (SEEM) and positive affect is assessed by the Satisfaction in Ministry Scale (SIMS). A sample of 156 religious leaders (95 men and 61 women) serving with the Roman Catholic Church in Italy completed SEEM and SIMS together with an independent measure of wellbeing. The results confirm the hypothesis that high SIMS scores reduced the negative effects of high SEEM scores on the independent measure of wellbeing

The burdens of rural ministry : identifying and exploring the correlates of five Causes of stress among rural Anglican clergy serving in multi-parish benefices

This volume includes a wide range of papers that explore individual and institutional aspects of religion from a social-science perspective. The special section has articles from research groups in Europe, the USA and Australia on clergy work-related psychological health, stress, burnout and coping strategies. The general papers include studies on coping strategies among Buddhists, gender differences in response to church decline, teenage participation in religion, social capital among Friends of Cathedrals, psychological profiles of clergy, education effects on Roman Catholic deacons, and an analysis of prayer requests. Together these papers form a valuable collection indicating the depth and vibrancy of research in these field

Factor structure, reliability and validity of the Francis Burnout Inventory Revised among Catholic priests and religious sisters in Italy

Drawing on the model of balanced affect, the Francis Burnout Inventory (FBI) conceptualised good work-related psychological health among religious leaders in terms of negative affect being balanced by positive affect, and operationalised this model with two 11-item scales. Factor analysis on data provided by 287 Catholic priests and religious sisters in Italy proposes reducing each of these scales to 10 items. Construct validity of these revised scales was supported against an independent measure of wellbeing

InGaN/GaN Laser Diodes and their Applications

Gallium nitride (GaN) laser diodes are becoming popular sources not only for lighting but for applications ranging from communications to quantum. This paper presents the use of a commercial, off-the-shelf laser diode, with an emission wavelength of 450 nm, for visible light communication, both in free space and for underwater scenarios. Data rates up to 15 Gbit/s have been achieved by making use of orthogonal frequency division multiplexing (OFDM). In addition, distributed feedback (DFB) lasers have been realised emitting at a single wavelength which lend themselves towards applications where high spectral purity is crucial such as atomic clocks or filtered free space transmission systems. These devices have the grating structure etched into the sidewall of the ridge and work is ongoing to measure the linewidth of these lasers with the intended application of cooling Sr+ ions

The evolution of non-small cell lung cancer metastases in TRACERx

Metastatic disease is responsible for the majority of cancer-related deaths1. We report the longitudinal evolutionary analysis of 126 non-small cell lung cancer (NSCLC) tumours from 421 prospectively recruited patients in TRACERx who developed metastatic disease, compared with a control cohort of 144 non-metastatic tumours. In 25% of cases, metastases diverged early, before the last clonal sweep in the primary tumour, and early divergence was enriched for patients who were smokers at the time of initial diagnosis. Simulations suggested that early metastatic divergence more frequently occurred at smaller tumour diameters (less than 8 mm). Single-region primary tumour sampling resulted in 83% of late divergence cases being misclassified as early, highlighting the importance of extensive primary tumour sampling. Polyclonal dissemination, which was associated with extrathoracic disease recurrence, was found in 32% of cases. Primary lymph node disease contributed to metastatic relapse in less than 20% of cases, representing a hallmark of metastatic potential rather than a route to subsequent recurrences/disease progression. Metastasis-seeding subclones exhibited subclonal expansions within primary tumours, probably reflecting positive selection. Our findings highlight the importance of selection in metastatic clone evolution within untreated primary tumours, the distinction between monoclonal versus polyclonal seeding in dictating site of recurrence, the limitations of current radiological screening approaches for early diverging tumours and the need to develop strategies to target metastasis-seeding subclones before relapse