â â â  parsian alluvial fan system is a part of asyab-kharabeh fluvial system that response it to quaternary climate changes is the main goal of this study. for this aim, climatic proxies and traces in alluvial fan structure were investigated base d o n four categories: aggradation and degradation phases, debris flows, size changes in deposited materials and formation of alluvial fan tufas. pri...

Optically pure â,â-dimethylated amino acid building blocks with functionalized side chains have been prepared from D-aspartic acid. The dimethylation was accomplished by regioselective dialkylation of 9-phenylfluorenyl (PhFl)-protected aspartate diesters. The bulk of the PhFl protecting group also allowed for a variety of functional group manipulations to be carried out on the side chain withou...

Cholecystokinin (CCK) is a growth factor for normal pancreas. Nu merous studies also suggest that CCK promotes pancreatic carcinogenesis in the rat. Our previous studies suggested that growth of preneoplastic pancreatic foci was stimulated by CCK more than that of normal pan creas. We hypothesized that such differential growth might be due to increased numbers of CCK receptors in neoplastic tis...

This paper aims at exploring a mechanism of new business development. To understand how a business develops, we move our analytical focus from the level of a focal business to the level of the “business ecosystem,” a collection of related businesses and institutions. We pay special attention to a slowly advancing component as a “reverse salient.” We comparatively examine the development...

Cholecystokinin (CCK) is a growth factor for normal pancreas. Nu merous studies also suggest that CCK promotes pancreatic carcinogenesis in the rat. Our previous studies suggested that growth of preneoplastic pancreatic foci was stimulated by CCK more than that of normal pan creas. We hypothesized that such differential growth might be due to increased numbers of CCK receptors in neoplastic tis...

Storicamente: rivista scientifica di storia, open access, supportata dal Dipartimento Storia Culture Civiltà dell'Università Bologna. contemporanea, moderna, medievale, antica, antropologia e geografia

Purpose: With  increasing the usage  of  myocardial  perfusion  imaging  (MPI)  for  the diagnosis  of  ischemic  heart  disease,  we  aimed  to  evaluate  the  side  effects  of  low-dose  radiation  induced  by  this  technique  on blood elements, especially proteins and liver function factors.Materials and  Methods:  40  eligible  patients  (Mean  age:  54.6...

Sleep is essential for physical and niental health. In the last 15 years there has grown up the concept of the brain stem reticular activating system. Electroencephalographic studies have shown two qualitatively different and alternat ing kinds of sleep, the orthodox (“slowwave―, or “¿ fore-brain―) and the paradoxical (“hind brain―, “¿ rapid eye movement―, “¿ activated―, or ...