4,632 research outputs found
GEOCHEMICAL SOIL MAPPING, PHYTOEXTRACTION OF CRITICAL ELEMENTS AND ENERGY PLANT PRODUCTION IN THE POST MINING AREA OF FREIBERG
The soil, heterogeneous in nature, is a very important part of the environment. It plays a
major role in the existence, health and functioning of the organisms found in it, the other
compartments of the biosphere and the life forms in them. Therefore, a negative deviation from a
healthy soil will have a great impact on the biosphere and the environment at large. Some of these
unhealthy deviations are caused by human activities and the aftermath of such activities such as
mining and resource prospecting within the earth crust. Since these deviations are now very
common and because economic gains from mining and prospecting of resources must continue,
several research works are focused on highlighting the possible ways of carrying out sustainable
mining and restoring the soil back to health conditions
GEOCHEMICAL SOIL MAPPING, PHYTOEXTRACTION OF CRITICAL ELEMENTS AND ENERGY PLANT PRODUCTION IN THE POST MINING AREA OF FREIBERG
The soil, heterogeneous in nature, is a very important part of the environment. It plays a
major role in the existence, health and functioning of the organisms found in it, the other
compartments of the biosphere and the life forms in them. Therefore, a negative deviation from a
healthy soil will have a great impact on the biosphere and the environment at large. Some of these
unhealthy deviations are caused by human activities and the aftermath of such activities such as
mining and resource prospecting within the earth crust. Since these deviations are now very
common and because economic gains from mining and prospecting of resources must continue,
several research works are focused on highlighting the possible ways of carrying out sustainable
mining and restoring the soil back to health conditions
Can the restrictive harvest period policy conserve mopane worms in Southern Africa? A bio-economic modelling approach
Imbrasia Belina also known as the mopane worm, like other edible insects and caterpillars, is a vital source of protein to Southern African countries. The worms live and graze on mopane trees, which occupy agricultural land. With increasing commercialization of the worm, the management of the worm, which was hitherto organized as a common property resource, has degraded to a near open access. In this paper, a simple bio-economic modeling approach has been taken to show that, for some optimal land allocation, the restrictive period harvest season policy that is advocated by community leaders may not lead to sustainable harvesting of the worm.
Free Your Mind: Contemporary Racial Attitudes and Post Racial Theory
The inauguration of the United States first Black President has prompted mass discussions of race relations in America. It is often articulated that America is now in a post-racial society. However, the question still remains: does the election of a Black president demonstrate that America is now a color-blind society? To answer this question, we rely on data collected by PEW (2007). Our results suggest that white and African Americans differ significantly in the extent to which they express post-racial attitudes. Specifically, we find that whites more commonly express post-racial attitudes, claiming that racism and discrimination are rare, in opposition to African American views. On the other hand, blacks are more likely to believe that discrimination still occurs. We further find that whites\u27 post-racial beliefs are significant determinants of their attitudes towards race-related policies, such as affirmative action. Keywords: Race, Obama, Post-racial, Public Opinion, Racial Attitudes, Racial Politics, African American
HIV/AIDS, climate change and disaster management : challenges for institutions in Malawi
Southern African institutions involved in disaster management face two major new threats: the HIV/AIDS pandemic (eroding organizational capacity and increasing vulnerability of the population), and climate change (higher risk of extreme events and disasters). Analyzing the combined effects of these two threats on six disaster-related institutions in Malawi, the authors find evidence of a growing gap between demand for their services and capacity to satisfy that demand. HIV/AIDS leads to staff attrition, high vacancy rates, absenteeism, increased workload and other negative effects enhanced by human resources policies and financial limitations. Many necessary tasks cannot be carried out adequately with constraints such as the 42 percent vacancy rate in the Department of Poverty and Disaster Management Affairs, or the reduction of rainfall stations operated by the Meteorological Service from over 800 in 1988 to just 135 in 2006. The authors highlight implications of declining organizational capacity for climate change adaptation, and formulate recommendations.Population Policies,HIV AIDS,Hazard Risk Management,Health Monitoring&Evaluation,Climate Change
Bi-Alexandroff spaces
Bi-Alexandroff spaces are defined as extensions of Alexandroff spaces [1]. Urysohn’s lemma for bi-Alexandroff spaces is used to show that upper and lower cozero sets of bitopological spaces are bi-Alexandroff spaces. An adjunction between bi-Alexandroff spaces and pairwise completely regular bitopological spaces is established
Reading the Swazi reed dance (umhlanga) as a literary traditional performance art
ABSTRACT
This study examines the Swazi Reed Dance (Umhlanga) as a literary traditional art form actuated through performance/ or dramatic elements that involve song, dance, symbols as well as audiences. A literary reading of some of the event’s specific texts elucidates meanings of its diverse themes such as: rituals of performing the monarch’s power; circulation of traditional hegemonic and patriarchal ideologies; virginity and HIV/AIDS; gender and human rights; democracy as well as modernity and globalization. All these issues are pertinent to Swazi society. The thesis key focus is to interrogate the literary role of Umhlanga in mediating perceptions about the Swazi people in contemporary Swaziland. In this regard, Umhlanga is examined as an art form that reflects the Swazi people’s socio-cultural, economic and political way of life. In order to achieve this goal it was important to closely examine the mechanisms involved in the event’s orchestration and reception/ or consumption by the Swazi people in their diversity as well as tourists. Throughout, the study highlights ambiguities, contradictions and conflicting views that challenge the beliefs, myths surrounding the ritual’s precepts and guidelines and by extension the ruling monarch. These are attributed to the influence of modernity and globalization. A major finding is that Umhlanga generates multiple texts proving the dynamic nature of tradition and culture. The study primarily employs an ethnographic approach focusing on the period between 2004 and 2007
Does education engender cultural values that matter for economic growth?
Empirical research has shown that cultural values matter for economic growth and has specifically identified the achievement motivation as an aspect of culture that engenders economic growth. If specific cultural values engender economic growth, how then can societies promote them? This paper attempts to answer this question using the 2005 wave of the World Values Survey data for 43 countries. We test the contention that education significantly impacts the relative importance an individual places on economic achievement vis-à-vis traditional social norms. Results suggest that individuals with higher education levels attach higher importance to values related to autonomy and economic achievement as compared to conformity to traditional social norms. The results have an important implication for efforts to promote economic development; institutions and specifically public policy on education could be used to encourage people to adopt values that are considered important for economic development.Cultural Values, Education, Ordered Probit, Semi-Nonparametric Estimation
Pointfree pseudocompactness revisited
We give several internal and external characterizations of pseudocompactness in frames which extend (and transcend) analogous characterizations in topological spaces. In the case of internal characterizations we do not make reference (explicitly or implicitly) to the reals
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