Abstract One of the significant components hydrological cycle is evapotranspiration. Monthly meteorological parameters 35 years from 19 stations across Northern Region Nigeria (NRN) were obtained and utilized for calibration Hargreaves–Samani (HS) model by comparing between potential evapotranspiration (ET o ) values estimated original HS Penman–Monteith (FAO-56 PM) models. The calibrated equat...

The field of knowledge management is of great importance in the commercial world, in part because technological economies are increasingly knowledge based, but also through a growing realization that intellectual capital is the key driver in organizational success, and that an organization’s people are the locus of much of its knowledge. In education, it has received little attention , 5 , alth...

estimating and determining of rice water requirement, being the main cultivate of rasht region, is crucial for devoting water to this region. equations which are used to calculate the reference evapotranspiration (et0) are not match to all climatic conditions, due to their empirical bases. so, it is necessary to clarify proper methods for each region. crop coefficient (kc) is also the main para...

Andy Hargreaves (Canada) Director and Professor at the International Centre for Educational Change at the Ontario Institute for Studies in Education. He is founding co-director of Professional Actions and Cultures of Teaching (PACT), from which the content of this issue is drawn. His book Changing teachers, changing times received the 1995 Outstanding Writing Award from the American Association...

The kynurenine pathway represents a major route for the catabolism of tryptophan (TRP). In the body, TRP is transported around the periphery either bound to albumin (90%) or in free form (10%), the two states existing in equilibrium (McMenamy 1965). However, only free form TRP can be transported across the blood-brain barrier (BBB) by the competitive and nonspecific L-type amino acid transporte...