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Determination of potentially toxic heavy metals in traditionally used medicinal plants for HIV/AIDS opportunistic infections in Ngamiland District in Northern Botswana
(Elsevier, www.elsevier.com/locate/aca, 2011-12-08)
The determination of four potentially toxic heavy metals, arsenic, chromium, lead and nickel in twelve
plant species used for the treatment of perceived HIV and AIDS-associated opportunistic infections
by traditional ...
Spatial and temporal land cover changes in the Simen Mountains National park, a world heritage site in Northwestern Ethiopia
(MDPI Publishing; www.mdpi.com, 2011-01-05)
The trend of land cover (LC) and land cover change (LCC), both in time and space, was investigated at the Simen Mountains National Park (SMNP), a World Heritage Site located in northern Ethiopia, between 1984 and 2003 using ...
Trait-environment relations for dominant grasses in South African mesic grassland support a general leaf economic model
(Wiley Online Library, 2011-03-04)
Question: Following the framework of Suding et al.(2003), we examined whether morphological traits (organismal response), tolerance and competitive effect (specific process response) were associated with grass dominance ...
Relative effects of visualized and verbal presentation methods in communicating environmental information among stakeholders: Okavango Delta, Botswana
(http://www.informaworld.com, 2011-04-12)
The present study examined the relative effectiveness of 2 public instructional
communication methods in improving selected predictors of knowledge-sharing
behaviors among communities in the Okavango Delta, Botswana. A ...
Forest transition pathways in Asia - studies from Nepal, India, Thailand, and Cambodia
(Taylor & Francis, 2011-06-03)
Tropical forest habitat continues to decline globally, with serious consequences for environmental sustainability. The South/Southeast Asian landscapes represent one of the most challenging parts of the world to study ...
The tropical African mercury anomaly:lower than expected mercury concentrations in fish and human hair
(Elsevier, 2011)
Mercury is a neurotoxin and global pollutant, and wetlands and newly flooded areas are known to be sites of enhanced production of monomethylmercury, the form of mercury that is readily biomagnified in aquatic food chains ...
Status of native woody species diversity and soil characteristics in an exclosure and in plantations of Eucalyptus globulus and Cupressus lusitanica in Northern Ethiopia
(BioOne, www.bioone.org, 2011-05)
Exclusion of grazing animals and tree plantations are 2 methods that have been used for restoration of degraded lands in tropical semiarid areas. These 2 options can foster secondary forest succession by improving soil ...
Communicating in the public sphere: attitudes toward different public instructional communication methods
(Taylor & Francis, 2011-02-18)
An effective response to global environmental challenges requires analysis of communication
patterns, processes and approaches. In addition, improving communication through emerging information and communication technologies ...
Adults who learn: sharing literacy project experience from south-western Nigeria
(Routledge, www.routledge.com, 2011-11-23)
The paper reports the outcome of a funded non-formal, functional adult literacy project embarked upon in the university-based I soya rural development programme area in southwestern Nigeria from 2005–2007. It specifically ...
The tropical African mercury anomaly: lower than expected mercury concentrations in fish and human hair
(Elsevier, 2011-02-20)
Mercury is a neurotoxin and global pollutant, and wetlands and newly flooded areas are known to be sites of enhanced production of monomethylmercury, the form of mercury that is readily biomagnified in aquatic food chains ...