The machinery behind Ocular Following Response (OFR) is confronted to ambiguities which are efficiently resolved in the primate visual system. We study here a model of center-surround motion integration in a probabilistic framework and try to identify its different dynamical components by using contrast gain responses to the particular bipartite stimuli. Motion integration may be modeled as an ...

Abstract T his paper contributes to the existing literature by examining the determinants of health financing in 177 developed and developing countries. The study introduces the variables of government effectiveness and control of corruption to capture the impact of governance quality on different mechanisms of health financing. Utilisng panel data analysis, namely system...

This paper contributes to the existing literature by examining the determinants of health financing in 177 developed and developing countries. The study introduces the variables of government effectiveness and control of corruption to capture the impact of governance quality on different mechanisms of health financing. Utilizing panel data analysis, namely system-GMM estimators, to obtain unbia...

Lead levels in whole blood and in plasma were measured in 64 non-exposed and in 29 exposed subjects with signs and symptoms of varying severity. Lead was determined by atomic absorption spectrophotometry after chelation with ammonium pyrrolidine dithiocarbamate and extraction with methyl isobutyl ketone. The method has a sensitivity of 04 ,ug/l00 ml (0.02 ,umol/l) for whole blood and of 0-2 ,g/...

introduction: iran is a vast country with limited water resources. iran is located in arid areas and average precipitation is estimated to be 250 mm. in recent years, water shortage has created many problems for iranian farmers. in these conditions, surface and ground water use is excessive. high consumption, low irrigation efficiency, bad time and geographical distribution of precipitation, po...

introduction: more plains of iran are located in arid and semi-arid regions and so agricultural production systems depend heavily on water. recently, the reduction of water resources has become a serious threat for crop production such as cotton planting. therefore, application of low irrigation methods can be an appropriate method to cope with mentioned condition. in addition, it is vital to i...