The investigations have been conducted in Lubunga urban-rural area because of its direct connection to the survey sites, where exploitation, sale as well as artisanal transformation of rattans are current activities. The socio-economic and ethno-ecological investigations on strategies of exploitation of rattans from June 2008 to December 2009. The survey has carried out in 12 villages in periphery of the Forest Reserve of Yoko and Lubunga. There were about 62 households of cutters - sellers, 14 households of cutters artist villagers, 13 households of artists of the rattan canes, 22 households of artists from Lubunga and 16 households of dealers of products made from rattan. The findings showed that the techniques of selective cut (choice of mature stems) and reasoned cut (the cut doesn't make itself at the level of soil) for exploitation of rattan canes are practiced by the villagers. The results revealed that exploitation, transformation and sale of rattans generate to the households daily incomes. A cutter-transforming and dealer has an income of 375 USD per month; a carrier by train has an income of 1137 USD per month, a carrier by bicycle has an income of 511 USD per month, a carrier by lorry has an income of 267 USD per month, a dealer of the articles has an income of 186 USD per month.

This study enabled to schematize the stages of work following principal centers of advantages of rattan sector, forest, via the village markets, 13 sites that 12 zones of rattan transformation and the Lubunga zonein order to better understand the socio-economic analysis of rattan sector surroundings of Forest Reserve of Yoko. This descriptive part showed the existence of thirteen types of actors at level of rattan sector from harvest to consumption and of thirteen villages identified; twelve have been surveyed because the Forest Reserve of Yoko was excluded. The financial approach applied to these sectors showed that the activities of various agents are profitable. While the economic approach showed that the whole of value chain is not economically profitable. The exploratory study revealed the existence of a sector under development precarious and nondurable because except the conflicts which exist between the riparian populations and the States which maintain them, the rattan moves away and nobody thinks of his replacement.

A survey on the evaluation of costs of fight against the malnutrition of vulnerable children has been conducted in Kisangani. This investigation aimed to value the loads that cause the restoration of a child badly fed living in Kisangani in a family. The results of this survey showed that: - The CNT Mwana Mupenda reached a maximum number of healed children at the 8th month of observation, with a rate of 438.09%; - The CNT Bambou achieved a maximum number of healed children at the 24th month, with a rate of 1752.17%; - The CNT CELPA got a maximum number of healed children at the 51st month, with a rate of 209.3% ; - The CNT EUB reached a maximum of cured children at the 19th month, with a rate of 320. 37 %. These results can be justified by the effort provided by the operators charged of health in the setting of sensitization of population and availabilities of supplies and inputs in the CNT as well as those of the parents.