Présentation du projet 'Inventaire et modelage de la gestion du couvert végétal permanent dans une zone forestière du Sud Sénégal

Presentation of the Project "Inventory and Management Modeling of the Permanent Vegetation in a Forest Zone in Southern Senegal". Belgium has a long tradition in the field of agricultural and floristic research in humid tropical Africa. The studies that were once done in Congo and there after in Zaire can still be considered to be milestones. Recently, the introduction of new techniques like teledetection and Geographie Information systems software has created new possibilities for those researchers that want give their basic research effort some added value in the form of policy guidelines. This text presents''the work that is currently been done by the Laboratory of Tropical and Subtropical Plant Husbandry and Ethnobotany (University of Gent, Belgium) in the Moyenne Casajsnance Province (southern Senegal) on the evolution and management possibilities of its natural vegetation

Présentation du projet''Inventaire et modelage de la gestion du couvert végétal permanent dans une zone forestière du Sud Sénégal"

Presentation of the Project "Inventory and Management Modeling of the Permanent Vegetation in a Forest Zone in Southern Senegal". Belgium has a long tradition in the field of agricultural and floristic research in humid tropical Africa. The studies that were once done in Congo and there after in Zaire can still be considered to be milestones. Recently, the introduction of new techniques like teledetection and Geographie Information systems software has created new possibilities for those researchers that want give their basic research effort some added value in the form of policy guidelines. This text presents''the work that is currently been done by the Laboratory of Tropical and Subtropical Plant Husbandry and Ethnobotany (University of Gent, Belgium) in the Moyenne Casajsnance Province (southern Senegal) on the evolution and management possibilities of its natural vegetation

Repeat mediastinoscopy in the assessment of new and recurrent lung neoplasm

From 1976 to 1990, 140 patients (mean age, 66 years; 91% male) underwent repeat mediastinoscopy as a routine staging procedure. The mean interval between first and second mediastinoscopy was 56 months. Owing to adhesions, 26 repeat mediastinoscopies (18%) were considered incomplete. There was no mortality, and 10 complications did not require interventional therapy. The results were positive in 20 patients, thus avoiding an unnecessary thoracotomy. In 7 patients with negative findings, positive lymph nodes were found at thoracotomy or by transcarinal puncture biopsy. The sensitivity of repeat mediastinoscopy in this series is 74%, and the accuracy 94%. We consider repeat mediastinoscopy a safe and reliable preoperative staging procedure in new or recurrent lung cancer