1. Problems Setting One of the tasks of the Construction office of company STOBET Ltd is to create large sheets of paper containing a lot of objects describing a building construction as tables, charts, drawings, etc. For this reason it is necessary to arrange the small patterns in a given long sheet of paper with a minimum wastage. Another task of the company is to provide a way of cutting a s...

According to this electronic model, the transition state (TS) is stabilized by donor–acceptor orbital interactions from metal d orbitals to the substrate s*C X, which become more stabilizing as the metal–ligand d hybrid orbital is pushed up at smaller bite angles. Here, we provide evidence that the mechanism through which the bite angle affects barrier heights (and also the twist angle in the T...

a r t i c l e i n f o We introduce a multiple scenario, multiple period, optimization-based decision support system (DSS) for strategic planning in a process industry. The DSS is based on a two stage stochastic linear program (SLP) with recourse for strategic planning. The model can be used with little or no knowledge of Management Sciences. The model maximizes the expected contribution (to pro...

objectives: an effective safety management requires paying attention to human factors. one of the most important methods for achievement to accident prevention is using safety climate or safety culture. moreover, some studies suggest that in most organizations behavior contributes to 86-96% of all injuries. this cross-sectional study was performed on the functional units’ workers of khuzestan p...

BACKGROUND AND OBJECTIVES Diarrheagenic Escherichia coli (DEC) is an emerging agent among pathogens that causes diarrhea. Studies showed that diarrheagenic E. coli such as enterohaemorrhagic E. coli (EHEC), enteroaggregative E. coli (EAEC), enteropathogenic E. coli (EPEC), enteroinvasive E. coli (EIEC), enterotoxigenic E. coli (ETEC), diffusely adhering E. coli (DAEC) and shiga toxin producing ...

BACKGROUND Working outside daylight hours (7 am to 7 pm) is called shift work. Shift work is a common practice in many industries and factories such as steel industries, petroleum industries, power plants, and in some services such as medicine and nursing and police forces, in which professionals provide services during day and night. OBJECTIVES Considering the contradictory reports of differ...

Khuzestan has one of the most detailed and well documented archaeological sequences in the Near East, thanks to years of excavation and survey by many researchers. This work has led to some understanding of political, economic, and social life in southwestern Iran from the time of the early villages to that of the early states and the historic empires. Over the millennia, agriculture and pastor...