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nowadays nmr spectroscopy becomes a powerful tool in chemistry because of the nmr chemical shifts. hartree–fock theory and the gauge-including atomic orbital (giao) methods are used in the calculation of 29si nmr chemical shifts of various silicate species in the silicate solution as initial components for zeolite synthesis both in gas and solution phase. calculations have been performed at geo...

abstract background: while critical care nurses are vulnerable to burnout because of the complex nature of patients’ health problems, working in critical care areas has become even more complicated by shift working schedules. this study aimed to determine the relationship between fixed and rotating shifts and burnout in a sample of critical care nurses working in critical care areas. materials ...

as a major consequence of medical interventions, quality of life (qol) is of great importance for patients suffering from refractory diseases, particularly cancer. the unbiased measurement of changes in qol is thus crucial in such cases. a prevalent bias related to qol research is the ‘response shift’ (rs) phenomenon. this review article aims to define rs and the challenges in measuring it. in ...

environmental protection has become one of the main concerns in developed economies, which is why an increasing degree of commitment in the field is required from all public and private bodies. environmental protection in firms must cease to be a secondary, barely profitable objective, involving the performance of sporadic remedial actions, and become just one more element of their organization...

nowadays nmr spectroscopy becomes a powerful tool in chemistry because of the nmr chemical shifts. hartree–fock theory and the gauge-including atomic orbital (giao) methods are used in the calculation of 29si nmr chemical shifts of various silicate species in the silicate solution as initial components for zeolite synthesis both in gas and solution phase. calculations have been performed at geo...

abstractthis study focused mainly on the shifts of the grammatical cohesion in texts translated from english into persian. it aimed to identify the grammatical cohesive devices (gcds) in st and tt separately, based on halliday and hassn's model (1976), determine the number of occurrences of gcds in two texts and finally, illustrate types of shifts of grammatical cohesion and strategies used in ...

introduction:today, shift work is considered as a necessity in many jobs and for some 24-hour services the use of shift-work is growing. however, shift work can lead to physiological and psycho-social problems for shift workers. this study aimed to determine the effects of shift work on the associated health problems, together with the demographic and job characteristics underlying the problems...