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Economic Exploitation (economic + exploitation)

Distribution by Scientific Domains
Earth and Environmental Science40%

Selected Abstracts

Complementary therapy for psoriasis

DERMATOLOGIC THERAPY, Issue 2 2003
Giovanni Luigi Capella
ABSTRACT: The authors provide some specifications regarding the correct terminology to be applied in the field of complementary medicine, and review and comment on several complementary treatments for psoriasis. Putative psychotherapeutic equivalents are kept distinct from treatments based on the surreptitious administration of physical or pharmacologic agents. Limits on the application of psychotherapeutic techniques are discussed. Risks inherent to complementary treatments (psychological derangements, moral subjugation, physical damage, economic exploitation) are underscored. The authors plead for the application of adequate scientific criticism in complementary medicine, but warn that any approach to the practice of medicine which is not disinterested and patient oriented,as the academic one should be,will be inappropriate, misleading, or even immoral. In the authors' opinion, this could also apply to the evidence-based medicine movement (often perceived as the archenemy of alternative medicine), should this movement be influenced by economical, political, or other nonmedical factors. [source]

Geophysical exploration for interlayer slip breccia gold deposits: example from Pengjiakuang gold deposit, Shandong Province, China

GEOPHYSICAL PROSPECTING, Issue 2 2004
Z. Qingdong
ABSTRACT Interlayer slipping breccia-type gold deposit , a new type of gold deposit, defined recently in the northern margin of the Jiaolai Basin, Shandong Province, China , occurs in interlayer slip faults distributed along the basin margin. It has the features of large orebody thickness (ranging from 14 m to 46 m, with an average thickness of 30 m), shallow embedding (0,50 m thickness of cover), low tenor of gold ore (ranging from 3 g/t to 5 g/t), easy mining and ore dressing. This type of gold deposit has promising metallogenic forecasting and potential for economic exploitation. A ground gamma-ray survey in the Pengjiakuang gold-ore district indicates that the potassium/thorium ratio is closely related to the mineralization intensity, i.e. the larger the potassium/thorium ratio, the higher the mineralization. The gold mineralized alteration zone was defined by a potassium/thorium ratio of 0.35. A seismic survey confirms the location of the top and bottom boundaries and images various features within the Pengjiakuang gold mineralization belt. The gold-bearing shovel slipped belt dips to the south at an angle of 50,55° at the surface and 15,20° at depth. The seismic profile is interpreted in terms of a structural band on the seismic section characterized by a three-layered model. The upper layer is represented by weakly discontinuous reflections that represent the overlying conglomerates. A zone of stronger reflections representing the interlayer slip fault (gold-bearing mineralized zone) is imaged within the middle of the section, while the strongest reflections are in the lower part of the section and represent metamorphic rocks at depth. At the same time, the seismic reflection survey confirms the existence of a granite body at depth, indicating that ore-forming fluids may be related to the granite. A CSAMT survey showed that the gold-bearing mineralized zone is a conductive layer and contains a low-resistivity anomaly ranging from 2 ,m to 200 ,m. [source]

Change in vegetation cover in East Timor, 1989,1999

NATURAL RESOURCES FORUM, Issue 1 2004
George A. Bouma
Abstract Forest resources play a key role and provide many basic needs to communities in developing economies. To assess the patterns of vegetation cover change, as a corollary of resource utilization, satellite imagery, ground truth data, and image processing techniques can be useful. This article is concerned with identifying change in major vegetation types in East Timor between 1989 and 1999, using Landsat Thematic Mapper data. The results highlight a significant level of deforestation and decline in foliage cover. All major vegetation cover types declined from 1989 to 1999, and there was a sizeable increase in degraded woodlands. This decline has had considerable impact on the livelihoods of rural and urban communities. Causes for these changes include: economic exploitation of abundant resources; and implications of transmigration policies implemented during Indonesian rule, resulting in increased competition for land and woodland resources. As the new nation of Timor-Leste establishes itself, it must consider its current stock and distribution of natural capital to ensure that development efforts are geared towards sustainable outcomes. Without the knowledge of historical patterns of resource consumption, development efforts may, unwittingly, lead to continuing decline in forest resources. [source]

Commercializing lignocellulosic bioethanol: technology bottlenecks and possible remedies

BIOFUELS, BIOPRODUCTS AND BIOREFINING, Issue 1 2010
Saumita Banerjee
Abstract With diminishing oil supplies and growing political instability in oil-producing nations, the world is facing a major energy threat which needs to be solved by virtue of alternative energy sources. Bioethanol has received considerable attention in the transportation sector because of its utility as an octane booster, fuel additive, and even as neat fuel. Brazil and the USA have been producing ethanol on a large scale from sugarcane and corn, respectively. However, due to their primary utility as food and feed, these crops cannot meet the global demand for ethanol production as an alternative transportation fuel. Lignocellulosic biomass is projected as a virtually eternal raw material for fuel ethanol production. The main bottleneck so far has been the technology concerns, which do not support cost-effective and competitive production of lignocellulosic bioethanol. This review sheds light on some of the practical approaches that can be adopted to make the production of lignocellulosic bioethanol economically attractive. These include the use of cheaper substrates, cost-effective pre-treatment techniques, overproducing and recombinant strains for maximized ethanol tolerance and yields, improved recovery processes, efficient bioprocess integration, economic exploitation of side products, and energy and waste minimization. An integrated and dedicated approach can help in realizing large-scale commercial production of lignocellulosic bioethanol, and can contribute toward a cleaner and more energy efficient world. Copyright © 2009 Society of Chemical Industry and John Wiley & Sons, Ltd [source]

Modern-Day Child Slavery1

CHILDREN & SOCIETY, Issue 3 2008
Hans Van De Glind
Child slavery is a contemporary global problem existing since ancient times. The concept of slavery and practices similar to it are defined in a range of international instruments. Children are particularly vulnerable to slavery-like practices, and their special plight is addressed by the UN Convention on the Rights of the Child (CRC,in particular Art 32 on the right to be protected from economic exploitation) and the ILO Worst Forms of Child Labour Convention, 1999 (No. 182). Furthermore, the Palermo Protocol on human trafficking (of 2000) provides important tools to help shape legislative policy against another form of slavery, namely the trafficking of adults and children. [source]