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Appropriate Technologies (appropriate + technology)
Selected AbstractsGlobalization vs. localization: global food challenges and local solutionsINTERNATIONAL JOURNAL OF CONSUMER STUDIES, Issue 3 2010Quaye Wilhelmina Abstract The objective of this study was to examine the effect of global,local interactions on food production and consumption in Ghana, and identify possible local solutions. Primary data were collected using a combination of quantitative-qualitative methods, which included focus group discussions and one-on-one interviews. Approximately 450 household heads were randomly selected and interviewed between August 2007 and August 2008 in Eastern, Central, Upper East and Northern Regions of Ghana. Findings revealed increasing consumption of foreign rice as opposed to decreasing consumption of local rice and other staples like millet, sorghum and yam because of global,local interactions. However, opportunities exist to re-localize production-consumption patterns through the use of ,glocal foods' like improved ,koose and waakye'. Referencing the situation in Ghana, the study recommends improved production and processing practices backed with appropriate technologies that reflect changing consumption dynamics in order to take full advantage of opportunities created as a result of global,local interactions. [source] Technology options for new nutritional conceptsINTERNATIONAL JOURNAL OF DAIRY TECHNOLOGY, Issue 2 2002Hannu Korhonen Recent advances in the food and nutrition sciences support the concept that the diet has a significant role in the modulation of various functions in the body. The diet and/or its components may contribute to an improved state of well-being, a reduction of risks related to certain diseases and even an improvement in the quality of life. These new concepts have led to the introduction of a new category of health-promoting foodstuffs, i.e. functional foods. The concern about health embraces a number of driving issues, needs and opportunities which may be approached by designing specific diets from various food raw materials. These tailor-made products provide physiological benefits that are targeted at particular consumer groups. The functionality of functional foods is based on bioactive components, which may be contained naturally in the product but usually require formulation by appropriate technologies in order to optimise the desired beneficial properties. To this end, it is often necessary to develop and apply novel technologies, e.g. membrane separation, high hydrostatic pressure and supercritical fluid extraction techniques. Also the minimal processing concept could be employed in this context. This review discusses the current technological options available and the future challenges faced in the area. Particular attention is paid to the exploitation of bovine colostrum and milk-derived bioactive compounds for the development of functional foods. [source] Small,scale mining in South Africa: Past, present and futureNATURAL RESOURCES FORUM, Issue 4 2002Nellie Mutemeri Mining is an important part of the South African economy and has been the driver of much of the economic development of the country. However, the small,scale mining subsector still has to realise its full potential. A small,scale mine has been defined as a mining activity employing less than 50 people and with an annual turnover of less than 7.5 million Rand and includes artisanal mines. Small,scale miners are involved in many commodities but there appears to be a bias towards gold, diamonds and quarrying for construction materials, including brickclays. Small,scale mining is regulated by the same legislation (i.e., for the environment, labour, mineral rights, exploration and mining permitting, and skills development) as large,scale mining, though compliance is low, particularly where artisanal mining in concerned. The effective participation of small,scale miners in the mining sector is hampered by their lack of skills, i.e., technical, business and management, and their limited access to mineral deposits, capital and markets. Some of these hindrances have been inherited from the imbalances of the colonial and apartheid eras and continue to act as barriers, making entrance to the industry difficult. For those who have entered the industry out of desperation, as is the case with most artisanal miners, their activities result in negative impacts evident in the inefficient, unsafe and environmentally unfriendly operations. With the advent of the new political dispensation in South Africa, a new era is dawning for the country's small,scale mining subsector. This has resulted in a change of attitude and new government policies which have led to special programmes being put in place to promote the subsector. Intervention strategies for the support of small,scale mining (some of which are already in operation) include programmes for kickstarting mineral beneficiation and value,addition projects, development of appropriate technologies and skills and technology transfer. Proponents of small,scale mining see a well,regulated industry as being the cornerstone of future rural economic development, particularly for previously disadvantaged communities in the poverty nodes. [source] THE IMPACT OF GREEN REVOLUTION ON RICE PRODUCTION IN VIETNAMTHE DEVELOPING ECONOMIES, Issue 2 2006TRAN Thi Ut Q16; O13; O33 The current paper reviewed the development of the Green Revolution in Vietnam, using long-term regional yield and modern variety adoption statistics, as well as household data collected in 1996 and 2003. The present study indicates that the Green Revolution began in irrigated favorable areas and spread to the less favorable areas in Vietnam such as in other Asian countries. What is unique in Vietnam is that although the Green Revolution ended in the mid-1980s in the Philippines and Indonesia, it has still been sustained as of 2003. Our analyses revealed that such growth had been supported by continuous improvements of modern varieties by regional research institutes. The varieties imported from China have contributed to the Green Revolution in northern Vietnam and those developed by the International Rice Research Institute in southern Vietnam. The national agricultural research systems have also played a critically important role in developing location-specific and appropriate technologies. [source] Front and Back Covers, Volume 25, Number 5.ANTHROPOLOGY TODAY, Issue 5 2009October 200 Front and back cover caption, volume 25 issue 5 FIELDWORK AND TECHNOLOGY The images on the front and back covers illustrate two of several reflections in this issue on the impacts of technology on the world studied by anthropologists. On the front cover, an internet cafe is one of the first sights to greet visitors to Dhunche, once a ,remote' area in northern Nepal. On the back cover, a youth tries out a telescope during the commemoration of the confirmation of Einstein's General Theory of Relativity at Roça Sundy, Príncipe, where Arthur Eddington observed a total solar eclipse. In his editorial, Bob Simpson remarks on how much the craft of fieldwork has changed as a result of the widespread on-site availability of communications technology, placing even the remotest sites within reach of home or employer. In this post-Malinowskian fieldwork, where the distinction between back here and out there has disappeared, what are the implications of this for our craft and for the quality of our obversations? Gisa Weszkalnys reflects on her fieldwork site of Príncipe as the location of one of the most important events in 20th-century science, the confirmation of Einstein's General Theory of Relativity. She overlays the 2009 commemoration of this event, with international institutions promoting scientific knowledge and tourism, with another, colonial history of Príncipe as the focus of a controversy around the alleged use of slave labour in its cocoa plantations. As Kristín Loftsdóttir argues in her article, science and technology are among a range of markers used to determine who is most in need of international development, thus contributing to what she calls the ,racialization of development'. Akbar Ahmed alerts us to the fear in Washington, DC and Islamabad that the Taliban, who have recently taken over his field site in Swat Province, could potentially destabilize world order by appropriating nuclear technology. There are evidently many ways in which science and technology can and do affect our field sites. One of the greatest challenges for anthropology will be to experiment creatively and innovate with appropriate technologies in partnership. In this way we can generate more egalitarian conversations in an atmosphere of mutual respect, trust and tolerance. Whatever fieldwork becomes, it must be founded on such engagement with the broadest of publics, while making the most of these new technologies. [source] Intact corneal stroma visualization of GFP mouse revealed by multiphoton imagingMICROSCOPY RESEARCH AND TECHNIQUE, Issue 12 2006Wen Lo Abstract The aim of this work is to demonstrate that multiphoton microscopy is a preferred technique to investigate intact cornea structure without slicing and staining. At the micron resolution, multiphoton imaging can provide both large morphological features and detailed structure of epithelium, corneal collagen fibril bundles and keratocytes. A large area multiphoton cross-section across an intact eye excised from a GFP mouse was obtained by a homebuilt multiphoton microscope. The broadband multiphoton fluorescence (435,700 nm) and second harmonic generation (SHG, 360,400 nm) signals were generated by the 760 nm output of a femtosecond titanium-sapphire laser. A water immersion objective (Fluor Ô, 40X, NA 0.8; Nikon) was used to facilitate imaging the curve ocular surface. The multiphoton image over entire cornea provides morphological information of epithelial cells, keratocytes, and global collagen orientation. Specifically, our planar, large area multiphoton image reveals a concentric pattern of the stroma collagen, indicative of the laminar collagen organization throughout the stroma. In addition, the green fluorescence protein (GFP) labeling contributed to fluorescence contrast of cellular area and facilitated visualizing of inactive keratocytes. Our results show that multiphoton imaging of GFP labeled mouse cornea manifests both morphological significance and structural details. The second harmonic generation imaging reveals the collagen orientation, while the multiphoton fluorescence imaging indicates morphology and distribution of cells in cornea. Our results support that multiphoton microscopy is an appropriate technology for further in vivo investigation and diagnosis of cornea. Microsc. Res. Tech., 2006. © 2006 Wiley-Liss, Inc. [source] Voters, Parties, and the Endogenous Size of GovernmentAMERICAN JOURNAL OF ECONOMICS AND SOCIOLOGY, Issue 1 2002Jans-Peter Olters Elections, often to a considerable degree, influence the fiscal policies of governments installed on the basis of their results. Yet, economists have tended to view politicians' behaviour either as being determined exogenously or as the result of a social planner's maximisation of a well-defined social-welfare function (subject to some appropriate technology and resource constraints). The latter approach, given (i) its inherent abstraction from important politico-economic interactions, (ii) the theoretical difficulty in deriving a non-contradictory "collective utility function" (as demonstrated by Arrow), and (iii) the inability to estimate a stable relationship that could explain political preferences with economic variables,is viewed as being an unsatisfactory tool for the joint description of a country's economy and polity. On the basis of explicit micro-economic foundations and a democratically coordinated decision-making mechanism over the "optimal" provision of public goods and the corresponding taxes required to finance them, this paper will introduce a simple economic model of politics that subjects individuals to a,two-tiered,political decision-making process over party membership and electoral participation, thereby endogenising the evolution of the competing parties' ideologies, households' electoral behaviour, and the key factors explaining the design of fiscal policies. Having the majority party's median delegate determine on the "optimal" degree of income redistribution suggests that a country's wealth distribution is a crucial explanatory variable explaining its politico-economic development path. [source] TCE plume remediation via ISCR-enhanced bioremediation utilizing EHC® and KB-1®REMEDIATION, Issue 4 2008James G. D. Peale Groundwater below an operating manufacturing facility in Portland, Oregon, was impacted by chlorinated volatile organic compounds (CVOCs), with concentrations indicative of a dense, nonaqueous-phase liquid (DNAPL) release. The downgradient plume stretched under the adjacent Willamette River, intersecting zones of legacy impacts from a former manufactured gas plant (MGP). An evaluation of source-area and downgradient plume treatment remedies identified in situ bioremediation as most likely to be effective for the CVOC plume, while leaving the legacy impacts for other responsible parties. With multiple commercially available products to choose from, the team developed and implemented a bench test to identify the most appropriate technology, which was further evaluated in a field pilot study. The results of the testing demonstrated conclusively that bioremediation enhanced by in situ chemical reduction (ISCR) using EHC® and KB-1® was most appropriate for this site, providing outstanding results. The following describes the implementation and results of the tests. © 2008 Wiley Periodicals, Inc. [source] | |||||||||||||