Bioecological Implications of Narrative Exposure Therapy in Low‐Resource Settings: Individual,Family, Community,and Socio‐Political Contexts

Traumatic stress can have detrimental effects on individuals, families, and communities. Narrative exposure therapy (NET) is an evidence‐based intervention for decreasing individuals’ post‐traumatic stress disorder (PTSD) symptoms and has been tested in some of the most challenging contexts, such as in post‐conflict refugee camps. Although the focus of NET is on reducing individual PTSD symptoms, the impact of NET can be seen beyond the individual level. The purpose of this paper is to examine some of the ecological implications of using NET with trauma‐affected populations in low‐resource settings. We describe the implications of NET at the family, community, and sociopolitical levels using several case examples. Finally, we outline limitations and future directions for improving the delivery of NET in settings with limited resources.     

“Let’s Talk About Children” resource: A parallel mixed method evaluation

Psycho-education interventions for families affected by parental mental illness have been found to be effective. This study aimed to assess the feasibility of a psycho-educational resource for parents, designed to initiate family discussions about parental mental illness and educate parents about the impact of their illness on children. In a mixed methods design, 19 parents read the “Let’s Talk About Children” psycho-educational resource and completed pre-and-post questionnaires measuring their perspectives of mental illness and awareness of the impact of mental illness on their children and family. 18 of these participated in a follow-up, one hour, individual interview to obtain further feedback on the resource. After viewing the resource, changes in parents’ attitudes and/or behavior in relation to mental illness and parenting were recorded. Interview findings indicate that the resource gave parents an awareness of the skills and knowledge needed for initiating family discussions about parental mental illness. The results of this study can be used to inform future interventions targeting parents who experience mental illness.     

Building ‘cowshed cultures’: A cultural perspective on the promotion of stockmanship and animal welfare on dairy farms

Improving animal welfare is an important part of the development of the agricultural industry, particularly at a time when intensification and the encroachment of factory-style production systems is making the maintenance of human-animal relations increasingly difficult. Animal science deals with the issue of improving stockmanship by focusing on the relationships between attitudes and behaviour, under the premise that improved attitudes will lead to improved behaviour. From an analysis of 42 interviews with owners, sharemilkers and workers on dairy farms in New Zealand we present a different view, seeing behaviour instead as part of a self-reinforcing culture in which animals, humans and the physical structure all contribute to the development of farm specific ways of doing and being. We further suggest that changing one stockperson's attitude alone is insufficient to ensure a change in the culture as other actors – including animals and non-human actors – reinforce any existing culture that has developed, making both attitudinal and behavioural change difficult. We conclude by discussing the key importance of designing farm systems and structures that promote positive interactions between animals and humans and suggest that this, rather than simply promoting knowledge and attitudinal change, is likely to be the most effective way of maintaining stockmanship in the face of an industrialising agriculture.     

The effect of visualization method on the performance of simulated microsurgery tasks

The operating microscopes may be a significant cause of fatigue and discomfort in surgeons. The need for the microscope to be placed over the operating field forces surgeons to remain at the microscope's eyepieces at an uncomfortable posture for the entirety of the surgery. This study compared the effects on microsurgical task performance for four visualization methods: a monocular microscope, a binocular microscope, a three-dimensional (3D) flat-panel television display and a two-dimensional (2D) flat-panel television display. Eleven subjects each performed two microsurgical tasks and their performance was documented by video camera. The statistical analysis performed indicated utilization of the microscope as a visualization method increased subject performance. No significant difference in performance between the 2D and stereoscopic visualization methods.     

Impact of lightweight and conventional jackhammers on the operator

Jackhammer manufacturers have recently developed lightweight (45-60 lbs) jackhammers intended to reduce the required lifting and pushing forces during operation. However, the vibration characteristics of the lightweight jackhammers and their effect on muscle activity are currently unknown. The objective of this study was to compare the measured vibration and muscle activity between: (i) conventional (90 lb) and light weight (60 lb) jackhammers, (ii) different pavement type/thickness combinations, and (iii) pneumatic and hydraulic jackhammers. Five jackhammers were tested on 4 and 6 inch thick asphalt and concrete pavements by four experienced operators. Analysis of the results revealed that both weight classes averaged 9.7 m/s(2) at the 20 Hz weighted 1/3 octave band frequency, and the TLV of daily exposure for either weight class of jackhammer was less than 1.5 hours/per day. There was an approximately 33% difference in vibration measured on the hand of the operators due to pavement thickness, 30% due pavement type, and no difference due to power source. Conventional jackhammers overall produced higher muscle activity than lightweight jackhammers. Although selection of the correct jackhammer for the job involves many factors including pavement type and thickness, the results of this research can be used to assist in selecting the appropriate jackhammer.     

Screening new products for potential winners

New product success is predictable. This paper highlights the findings of an extensive study into new product success and failure, and pinpoints what separates winners from losers. The key success factors are: product superiority—delivering unique benefits to customers, upfront homework—before development gets underway, sharp and early product definition, a strong market orientation with constant customer contact and input, and quality of execution of key activities in new product process. Sadly many firms and new product efforts are lacking on these success factors. This points to the need for a more disciplined approach to product development. One solution proposed is the implementation of a stage-gate or formal new product process—a blueprint for the process from idea to launch. A generic stage-gate is outlined in the article. The experiences of managers in firms which have implemented such processes are investigated, and the performance results are positive: improved teamwork, less recycle, higher success rates and shorter cycle times.     

Hybrid Processing of Stochastic and Subjective Uncertainty Data

Uncertainty analyses typically recognize separate stochastic and subjective sources of uncertainty, but do not systematically combine the two, although a large amount of data used in analyses is partly stochastic and partly subjective. We have developed methodology for mathematically combining stochastic and subjective sources of data uncertainty, based on new "hybrid number" approaches. The methodology can be utilized in conjunction with various traditional techniques, such as PRA (probabilistic risk assessment) and risk analysis decision support. Hybrid numbers have been previously examined as a potential method to represent combinations of stochastic and subjective information, but mathematical processing has been impeded by the requirements inherent in the structure of the numbers, e.g., there was no known way to multiply hybrids. In this paper, we will demonstrate methods for calculating with hybrid numbers that avoid the difficulties. By formulating a hybrid number as a probability distribution that is only fuzzily known, or alternatively as a random distribution of fuzzy numbers, methods are demonstrated for the full suite of arithmetic operations, permitting complex mathematical calculations. It will be shown how information about relative subjectivity (the ratio of subjective to stochastic knowledge about a particular datum) can be incorporated. Techniques are also developed for conveying uncertainty information visually, so that the stochastic and subjective components of the uncertainty, as well as the ratio of knowledge about the two, are readily apparent. The techniques demonstrated have the capability to process uncertainty information for independent, uncorrelated data, and for some types of dependent and correlated data. Example applications are suggested, illustrative problems are shown, and graphical results are given.