Combating Desertification in Asia, Africa and the Middle East MEng. F. Lucka to carry out a rou­ FACR to carry out a rou­ tine control with postoperative transcutaneous Doppler fol­ lowing extracranial intracranial bypass operations and an­ giography while still under anesthesia following aneurysm operations inwiefern festgeschriebene Führungsregeln und prinzipien das Verhalten der Führungskräfte in einer Organisation effektiv beeinflussen und zu einer Verinnerlichung und Reproduktion der normierten Verhaltensweisen führen können changes in governance and to the legislative framework and policy reform This compilation demonstrates that desertification and land degradation can be controlled and reversed with existing techniques in such widely varying environments as the Sahel of Africa to Sri Lanka and the Philippines in SE Asia