Open-Access Fishery Models: Relaxing a Constraint and Removing an Econometric Obstacle

Over the past 30 years, a widely accepted model of "open-access" fisheries has been developed, yet empirical tests of the standard model have been relatively few. One difficulty is that fish stocks, the levels of which affect the rate of catch, are not directly observable. Simplifying assumptions are generally required, such as the assumption that catchability does not change over time. Estimation on the basis of the standard model also raises difficulties in specification, if contemporaneous correlation of the error term with one of the regressors is to be avoided. This paper describes an algorithm that imposes a less restrictive pattern (than constancy) on catchability, yet does so in an econometrically acceptable fashion. It also reports on an application of this algorithm to the Flemish Cap groundfishery over the period from 1971 to 1985.Environmental Economics and Policy, Research Methods/ Statistical Methods, Resource /Energy Economics and Policy, catchability, error term, bias, Flemish Cap,

Concept for a large multipurpose launch vehicle

Multipurpose single stage launch vehicle configuration feasibility stud

The Initial findings of the Healthy Lifestyles Project:: A practical design and technology cooking and nutrition programme for primary schools

Childhood obesity has reached epidemic levels in developed countries, with those who live in lower socio-economic groups twice as likely to be obese (Davies, 2019). This paper will report the findings and analysis of the first 4 years of a six-year longitudinal study into the impact of the Healthy Lifestyles Project (HLSP), which is currently being piloted as part of the D&T curriculum in a school in an area of high deprivation. The HLSP aims to develop children's practical cooking and nutrition skills, knowledge and understanding, enabling them to choose, prepare and cook healthy ingredients to feed themselves and their families, helping to change their attitudes and perceptions towards choosing a healthier lifestyle. By drawing on the experience of head chef at the Adopt a School Trust, the HLSP has been designed to provide a programme for staff, children and parents which aims to make a positive contribution to tackling children’s health in the UK and beyond. There are four key features of the HLSP: regular termly cooking and nutrition lessons termly support for parents opportunities for children to plant, grow and eat their own fruit and vegetables in the school grounds teaching resources for before, during and after the practical food sessions Theory and research suggest that when looking at changing behaviour, interventions that have several aims and approaches are more successful. Therefore, when designing the HLSP, a multi-pronged approach was required to address attitudes and behaviours by tackling some of the physiological, environmental and social issues behind childhood obesity. One theoretical framework that the HLSP aligns to closely is Social-Ecological Model (SEM), based on Bronfenbrenner’s (1979) ecological model. Preliminary evaluations on the impact the project have been made across the five aspects of the SEM theoretical framework: individual, inter-personal, organisational, community and policies, laws & other cultures

(The) dramatic element in liturgical development from the early days of the Christian church to modern times ..

Typewritten sheets in cover. Thesis (M.A.)--Boston University Bibliography: 2 p. at end

Death Lilly : Performing the \u27Flower Girl\u27 role in the Age of Consumption

This self-reflexive photomedia project interrogates the \u27flower girl\u27 role as a cultural fetishism of \u27innocent\u27 white-girl femininity, which I claim is perpetuated in the bridal fantasy. In my photomedia work the theme of \u27death\u27 and the uncanny is explored as well as the themes of \u27wildness\u27 and \u27violence\u27 in order to subvert the dominant discourse of ideal white femininity which is defined in popular culture by a sanitised bourgeois aesthetic. I attack the bourgeois surface of the bridal magazine in my artwork as I perform the \u27flower girl\u27 role in the context of popular culture and capitalism. The flower girl role, historically a fertility symbol, regenerated into the age of consumption is symbolic of a fertile capitalist economy. Inspired by the work of the feminist artist Barbara Kruger, in Death Lilly the bridal magazine is deconstructed and reappropriated. I do this to expose the flower girl as an agent for white, middle-class, Western ideals of femininity which I argue provide a counter to the liberations of feminism and are oppressive to young girls. I seek to give rise to a more multidimensional narrative than what is presented in the homogenous bridal culture. Furthermore, in uncovering repressed personal memory, my photomedia work attempts to illustrate a way in which meaning can be inscribed into a symbolic object outside of consumptive process

Assessment and learning: is assessment an afterthought or is it at the heart of the learning process?

An approach to learning is described which is built on techniques developed for on screen assessment and formative assessment. It aims to provide a high level of motivation, immediate student centred feedback and a high level of learner control. The technology (known as btl engageTM) can be applied to any area in which on screen assessment material is already available, extending it into areas such as revision, interactive worksheets and elearning

Critical care in the developing world - a challenge for us all

The rapid economic growth in parts of the developing world is being accompanied by an expansion of critical care. Hurdles to expansion include lack of critical care training for healthcare workers. This is coupled with a need for a huge number of healthcare workers due to the high populations of countries such as China and India. Intensivists in the developed world can and should help

Learning from each other: building relationships between primary and secondary D&T

There is plenty of research about what primary D&T teachers can learn from secondary D&T teachers (Growney, 2013), but little about what secondary can learn from primary. Is there an underlying assumption that the expertise lies only with secondary teachers

Future of an ageing population evidence review; Developing medical fitness and wellbeing environments to maintain health and wellbeing over the lifecourse.

Background and methods This report is derived from a review of the research evidence on physical activity interventions and initiatives, interventions to support self-management/ self-care of long-term conditions and digitally enabled care services and technologies. The aim was to use existing evidence to envision future services and associated infrastructure. The Evidence Review involved scoping the literature for topics researched and to determine the nature of that research. Rapid-scoping review methods were applied to trusted sources, and searches for specific key texts were conducted. A separate search was conducted to identify literature relevant to each domain. A narrative was then produced from the review findings. Review findings The evidence base for physical activity interventions is growing. There has been significant recent investment in the development and evaluation of interventions to promote activity and reduce sedentary behaviour at the individual, community and population levels. The evidence to link higher levels of physical activity to positive health outcomes and disease prevention is convincing, both in ‘well’ populations and in those with long-term health conditions. Self-management interventions are heterogeneous in nature but common elements exist across the majority of them. The consensus in the literature is that self-management will become increasingly important due to unsustainable demands upon services. Evaluation of selfmanagement interventions reveals a small but varying effect across a wide range of outcomes. However, little is known about the mechanisms by which these interventions work and how these might vary across differing conditions and populations. Technology is being increasingly used to support service delivery in a wide range of contexts, and for the delivery of a variety of interventions including fitness and self-management. There is strong evidence supporting the use of technology for remote monitoring of people with longterm conditions, but further research is required. Implications Digital applications are already altering established patterns of service delivery. The findings presented here reveal varying results of efficacy which do not accord with the optimistic future described in various envisaging reports. Research has yet to consider unwanted and unforeseen effects of moving towards technology-enabled services. It is also important to consider how to effectively harness new health data emerging from the use of eHealth systems, technology-enabled services and health-tracking devices. There is an ongoing requirement to evaluate new technologies and technology-enabled services in ways that provide both timely and robust answers, particularly as technology development is a continually moving target. These considerations are discussed in this report