Deep dentinal lesion progress is often presented as the point of no return for the specific pulp involved. In these lesions, however large variations and changes within the lesion environment may be detected. As the disease process is better studied and understood, more conservative treatments have come 5 up in the treatment of deep carious lesions. One such is a step-wise excavation procedure,...

The importance of soil factors to the establishment of tree crops is well recognized by forest soil scientists and foresters. It has, however, been overlooked by far too many foresters responsible for major forestation projects. The soil factors found to be significant in the establishment of both planted stock and seedlings from natural or artificial seedf all are: texture and structure charac...

the nutritional value of cereal straw can be increased using urea treatments as a source of ammonia. the conventional urea treatment process for cereal straw is a laborious and time-consuming task. it is essential to facilitate or eliminate part of the procedure with the use of machinery. this study examines the mechanical urea treatment of wheat straw and compares chemical components and diges...