580 research outputs found
The development of a guide to aid in the selection of general classroom furniture
Thesis (Ed.M.)--Boston Universit
Recommended from our members
Assessment of needs and feasibility of commercial production of tropical fruits and vegetables for diversified exports in Ethiopia and Sudan
Diversification into the production and export of horticultural crops is a strategy increasingly adopted by developing countries to enhance incomes, employment and foreign exchange earnings. However, a relatively small number of countries dominate exports of horticultural products from Sub-Saharan Africa and for most African countries the horticulture export sector has remained very small and/or has experienced severe bottlenecks to expansion. The Common Fund for Commodities (CFC) is financing projects to assist Least Developed Countries in the diversification of their commodity exports. As part of this programme, the CFC is funding this pilot project in Ethiopia and the Sudan to assess the needs and feasibility of developing commercial production of high value tropical fruit and vegetable products based on these countries' comparative advantage. The purpose of this report is to identify and prioritise the various capacity building measures that need to be devised and developed to overcome these constraints and thus facilitate an expansion of fruit and vegetable exports. The aim is to advise the relevant international and national institutions on modalities to adopt in order to strengthen the existing horticultural strategy in Ethiopia and Sudan and thus reduce poverty while enhancing the livelihood benefits accruing. The report has five chapters. The first is an introduction, while aspects of horticultural production and trade in Ethiopia and Sudan are discussed in Chapters 2 and 3 respectively. Chapter 4 reviews the international market situation looking specifically at European Union and Middle East markets. Chapter 5 contains conclusions and recommendations of the study. In addition, there are 7 Annexes, covering methodology, contacts and itinerary, workshops in Sudan and Ethiopia, detailed production and trade data, and materials consulted
Recommended from our members
The production of fresh produce in Africa for export to the United Kingdom: mapping different value chains
This report maps the involvement of African smallholders in supplying produce to UK markets (with emphasis on detailed characterisation of UK markets) by determining origin of product, types of product, volumes, values and numbers of smallholders involved and destination markets. The study is important because there is strong evidence that exporters and importers are moving away from the smallest of growers, not because of product quality or productivity, but because of transaction costs associated with private retailer standards. At present, it is not clear whether production by small-scale farmers throughout Africa destined for export to retailers abroad can remain viable
Sex variation in patellar tendon kinetics during running
Purpose.
The aim of the current investigation was to determine whether female recreational runners exhibit distinct patellar tendon loading patterns in relation to their male counterparts.
Methods.
Twelve male (age 26.55 ± 4.11 years, height 1.78 ± 0.11 m,
mass 77.11 ± 5.06 kg) and twelve female (age 26.67 ± 5.34 years, height 1.67 ± 0.12 m, mass 63.28 ± 9.75 kg) runners ran over a force platform at 4.0 m · s –1. Lower limb kinematics were collected using an eight-camera optoelectric motion capture system which operated at 250 Hz. Patellar tendon loads were examined using a predictive algorithm. Sex differences in limb, knee and ankle joint stiffness were examined statistically using independent samples t tests.
Results.
The results indicate that patellar tendon force (male = 6.49 ± 2.28, female = 7.03 ± 1.35) and patelllar tendon loading rate (male = 92.41 ± 32.51, female = 111.05 ± 48.58) were significantly higher in female runners.
Conclusions.
Excessive tendon loading in female runners indicates that female runners may be at increased risk of patellar tendon pathologies
A workout for virtual bodybuilders (design issues for embodiment in multi-actor virtual environments)
This paper explores the issue of user embodiment within collaborative virtual environments. By user embodiment we mean the provision of users with appropriate body images so as to represent them to others and also to themselves. By collaborative virtual environments we mean multi-user virtual reality systems which support cooperative work (although we argue that the results of our exploration may also be applied to other kinds of collaborative systems). The main part of the paper identifies a list of embodiment design issues including: presence, location, identity, activity, availability, history of activity, viewpoint, action point, gesture, facial expression, voluntary versus involuntary expression, degree of presence, reflecting capabilities, manipulating the user's view of others, representation across multiple media, autonomous and distributed body parts, truthfulness and efficiency. Following this, we show how these issues are reflected in our own DIVE and MASSIVE prototype collaborative virtual environments
Origins of fibrosis:pericytes take centre stage
Pericytes are ubiquitous perivascular cells that have recently attracted interest as potential myofibroblast precursors. In turn, myofibroblasts are the major source of extracellular matrix components that accumulate during tissue fibrosis. Given the worldwide burden of fibrotic disease and paucity of therapeutic options available to halt its progression, elucidating the origins of myofibroblasts is of prime importance. The advent of genetic strategies that permit fate-mapping of specific cell populations through permanent and heritable expression of reporter proteins has begun to shed light on the source of the fibrogenic myofibroblast. Here we discuss recent studies in multiple organs that highlight the central role of pericytes in the origins of fibrosis
- …