The sperm mucus penetration test checks whether a man's sperm can move through the cervical mucus. This test is not done very often because there are other fertility tests that give more information about the fertility problem.
The current system of shifting cultivation can best be described as neo-traditional, composed of modern (colonial) and traditional (pre-colonial) structural elements. It is a locally adapted version of what was introduced by the Belgian Colonial Administration into the Ituri Forest under the heading of paysannat indigÃ¨ne including resettlement schemes and compulsory cultivation [Jurion and Henry 1967].
Swidden farming, also know as shifting cultivation or milpa in Latin America, is conventionally defined as âan agricultural system in which temporary clearings are cropped for fewer years than they are allowed to remain fallowâ (Sanchez, 1976). While certainly correct, this definition reflects a Western or modern emphasis on the relatively short period when annual food and other crops are grown. Swidden can also be thought of as forest farming, since the fallow period is typically long, managed and often cultivated as well, although with perennial species rather than annuals.