The milkweed, Calotropis gigantea (L.) W.T. Aiton (Gentianales: Asclepiadaceae) locally known as Akond, is an evergreen, perennial shrub, and is widely distributed in sub-tropical and tropical countries. It has been reported that latices of the milkweeds including C. gigantea contain cardiac glycosides that vary in amount and type between species, between various plant parts of the same species...

Intestinal and urinary helminthes are distributed worldwide, particularly in tropical and sub-tropical areas. More than one billion of the world’s population, including atleast 400 million school children are chronically infected with Ascaris lumbricoides, Trichuris trichiura and the hookworms1 while schistosomiasis affects nearly 200 million people in 75 countries. The prevalence of infections...

This paper reviews the key constraints limiting the practice of CA in tropical rainfed agroecologies. It examines evidence from research, and from widespread indigenous practice, that indicates that successful CA systems for tropical smallholders would benefit substantially from the integration of trees. It argues that Conservation Agriculture with Trees (CAWT) addresses a number of the critica...

Since 1994, TRL in collaboration with a number of road authorities and consultant partners have been engaged in extensive studies of the performance of low volume sealed roads within Southern Africa (Greening and Gourley, 1999). The roads included in service primary and secondary roads with ages varying from thirty years old to relatively new roads and specially constructed experimental section...

Is There a Commercial Case Timber certification is not expected to provide for Tropical Timber significant commercial Certification? benefits to developing countries in the near future. Revenues from certification Panayotis N. Varangis are limited by the share of Rachel Crossley trade destined for "ecoCarlos A. Primo Braga sensitive" markets and by the size of the "green premium." The costs of ...

1 National Neglected Tropical Diseases Programme, Ghana Health Service, Accra, Ghana, 2 Parasitology Department, Noguchi Memorial Institute for Medical Research, University of Ghana, Legon, Accra, Ghana, 3 FHI360, Ghana Office, Accra, Ghana, 4 Liverpool School of Tropical Medicine, Liverpool, United Kingdom, 5 European and Developing Countries Clinical Trials Partnership (EDCTP), Africa Office,...

The patbogenesis of NMS is still debated though evidence in favour of central dopaminergic blockade is more convincing and against peripheral toxic effect on skeletal muscles. Very few cases have been reported from tropical and sub tropical countries. Seven cases of NMS admitted in the Department of Neuropsychiatry, Jinnah Fostgraduate Medical Centre, Karachi are being reported. All were acutel...

th (Hafmer, 1998) and was introduced in India in 16 century from Malacca (Kumar and Abraham, 1983). Papaya is one of the most important fruit crops of Hawaii, Malaysia, Burma, Sri Lanka, India, Queens Land, South Africa, and other tropical and sub-tropical countries of the world. Papaya occupies 2.0 per cent total fruit crop area and 5.3 per cent of total fruit production in India (5381.73 thou...

Juxta-articular nodes (Lutz, 1891; Jeanselme, 1924) have usually been reported from tropical countries where yaws and syphilis are endemic. Kalz and Newton (1943) state that only about 200 cases have been reported from non-tropical regions. In the Scandinavian literature only one report of such nodes (Fex, 1927) has come to our knowledge and we therefore wish to present four cases observed at t...